9/29/2024

Nondestructive Testing of Condom Packaging Integrity

Condom packaging integrity is a critical factor in ensuring the safety and effectiveness of condoms. Leaks in the packaging can lead to lubricant loss, reducing the effectiveness of the product. To guarantee the quality of condom packaging, manufacturers employ various testing methods, including nondestructive testing techniques.


Condom packaging typically consists of a foil pouch or a cardboard box with a plastic liner. The packaging serves as a barrier between the condom and the external environment, protecting it from damage and contamination. It also provides information about the product, such as size, brand, and expiration date.

Nondestructive packaging leak testing involves detecting leaks in the packaging without damaging the product itself. This test offers several benefits, including

Accuracy: The methods used are highly accurate in detecting leaks, even small ones.

Efficiency: Testing can be performed quickly and efficiently, allowing for high-throughput testing.

Non-destructive: The tests do not damage the packaging or the condom, ensuring that only undamaged products reach consumers.

Cost-effective: Nondestructive testing can be more cost-effective than destructive methods, as it avoids the need to discard damaged products.

One common nondestructive testing technique used for condom packaging is the vacuum decay method. This method involves placing the condom package in a vacuum chamber and monitoring the pressure over time. If there is a leak in the packaging, the pressure will decrease as air enters. Another method is pressure decay testing, when a package is pressurized with a known amount of gas, if there is a leak, the pressure will decrease over time as the gas escapes.


Labthink C690H Nondestructive Package Leak Detector is based on the testing principle of the vacuum decay method, designed and manufactured according to ASTM F2338 and other standards. It is professionally suitable for batch sealing leak detection of vials, and trace leakage detection of ampoule, cartridge bottles, infusion bottles, prefilled syringes and other pharmaceutical packaging.

By employing nondestructive packaging leak testing, condom manufacturers can ensure that their products meet the highest quality standards and are safe for consumers to use.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/28/2024

Non-Destructive Package Leak Detection Applications in Pharmaceuticals

In the pharmaceutical industry, where product integrity is paramount, ensuring the safety and efficacy of medications is of utmost importance. Traditional destructive testing methods can lead to product wastage and delay time-to-market. This is where non-destructive package leak detection shines.



Vacuum decay and pressure decay are two common methods used in non-destructive package leak detection. In vacuum decay, the package is placed under a vacuum. Leaks will allow air to enter, increasing the pressure. Conversely, in pressure decay, the pressure within a sealed package is measured. A leak will cause the pressure to drop more rapidly.

Non-destructive leak detection is beneficial for pharmaceutical packaging. By avoiding destructive testing, non-destructive leak detection prevents product wastage, ensuring that valuable medications are not lost. The testing process is significantly faster, reducing turnaround time and accelerating product release. These methods provide reliable and accurate results, helping to identify potential packaging defects early on. Adherence to strict quality control standards is essential in the pharmaceutical industry. Non-destructive leak detection helps ensure compliance with regulatory requirements.


Labthink C690H Nondestructive Package Leak Detector is based on the testing principle of the vacuum decay method, designed and manufactured according to ASTM F2338 and other standards. It is professionally suitable for batch sealing leak detection of vials, and trace leakage detection of ampoule, cartridge bottles, infusion bottles, prefilled syringes and other pharmaceutical packaging.

Non-destructive leak detection has various applications in Pharmaceutical Packaging, such as blister packs, which are commonly used for packaging tablets, capsules, and other solid dosage forms, blister packs can be easily tested for leaks using vacuum or pressure decay methods. Vials, commonly used for liquid medications, can also be effectively inspected for leaks using these techniques; and ampoules, small glass containers used for sterile injectable medications, can be tested for integrity using non-destructive methods.

In conclusion, non-destructive package leak detection, particularly vacuum decay and pressure decay, offers a valuable solution for the pharmaceutical industry. By preserving products, improving efficiency, and ensuring quality, these methods play a vital role in safeguarding the integrity of medications and protecting public health.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/23/2024

Measuring the Impact of Film Thickness on Film Oxygen and Water Vapor Transmission

The barrier properties of films, such as their ability to resist the permeation of gases like oxygen and water vapor, are crucial for the packaging of a wide range of products, including food, pharmaceuticals, and electronics. These properties are influenced by various factors, among which the thickness of the film plays a significant role. This study explores the relationship between film thickness and barrier performance, focusing on oxygen and water vapor transmission rates.


Understanding the barrier properties of films is essential. Higher oxygen and water vapor barrier properties can extend the shelf life of products by preventing oxidation, moisture loss, and contamination. Barrier films help maintain the quality and integrity of products during storage and transportation. Knowledge of barrier properties aids in the selection of appropriate packaging materials for specific products and applications. Many industries have regulations regarding the barrier properties of packaging materials.

This study tested the several materials to explores the relationship between film thickness and oxygen and water vapor barrier performance. The tested materials include plastic films, aluminum foil, films with metal coatings and film with ceramic coatings, and multilayer films composed of different materials.



Labthink C403H Oxygen/Water Vapor Transmission Rate Test System is a versatile instrument used to measure the oxygen and water vapor transmission rates of various materials. This system employs coulometric oxygen sensors and infrared water vapor sensors, adhering to standards such as ASTM D3985 and ISO 15106-2.

Generally, as the thickness of a film increases, its barrier properties improve. This is because a thicker film offers a longer diffusion path for gases, reducing the rate at which they can permeate through the material. However, there are limitations to this relationship, the specific material and its inherent barrier properties will influence the extent to which thickness affects barrier performance.; factors such as temperature, humidity, and pressure can affect test results; non-uniformities in the film, such as pinholes or defects, can significantly impact barrier performance.

Film thickness is a critical factor in determining the barrier properties of packaging materials. By understanding the relationship between thickness and barrier performance, manufacturers can select the most appropriate materials for their products and optimize packaging designs. The C403H Oxygen/Water Vapor Transmission Rate Test System provides a reliable and accurate method for measuring these properties, ensuring product quality and extending shelf life.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more! Measuring the Impact of Film Thicknes

9/19/2024

Air Permeability Test Quantifying Leather Breathability

Leather is widely used in clothing, footwear, foot pads, seat pads, sofas, and other products. Its permeability significantly affects the comfort of these products, especially those in direct contact with the human body, such as leather clothing and footwear. If leather has poor permeability, it cannot effectively dissipate the sweat and heat generated by the human body, leading to a damp and hot feeling during wear, resulting in a negative wearing experience for consumers.

The collagen fiber gaps in leather serve as channels for gas and energy exchange between the inside and outside of the leather. Processes such as acid-base treatment, softening, texturing, greasing, tanning, and finishing during leather production can affect the uniformity, size, and quantity of these collagen fiber gaps. Therefore, testing permeability can provide data for adjusting and improving leather production processes, ultimately enhancing the quality of leather products.



The standard test method for measuring the air permeability of leather is ASTM D737. This test measures the rate at which air flows through a material under a specific pressure differential. Labthink TQD-G1A Air Permeability Tester is applicable to this test.

This equipment can test the permeability of materials using two different principles: the "constant pressure difference measurement flow rate method" and the "constant flow rate measurement pressure difference method." The former adjusts the pressure to create a constant pressure difference between the two sides of the sample, then measures the airflow volume passing through the sample in a given time, and calculates the permeability of the sample. The latter adjusts the airflow to maintain a constant flow rate through the sample, then measures the pressure difference between the two sides of the sample under this condition, and calculates the air flow resistance.



Beside the air permeability of leather, Labthink TQD-G1A Air Permeability Tester is also applicable to testing of air permeability and air resistance of automotive interior decoration materials, such as polyurethane foam, PVC, textiles, nonwovens. In addition, it can also be used to test the permeability of separation membrane, sponge, carpet, non-woven fabric, paper and leather. The instrument conforms to ISO 9237, ISO 4638, ISO 5636, GB/T 10655, GB/T 5453, GB/T 4689.22, GB/T 13764, ASTM D737, TAPPI T460, JIS P8117.

Permeability is a crucial factor influencing the performance of leather applications. It is typically measured using the pressure difference method. Labthink TQD-G1A Air Permeability Tester can be used to test the permeability of leather. The testing process is simple, takes a short time, has high efficiency, and the equipment is easy to operate. The test process involves less interference from human factors on the test results, the test results are more accurate and reliable.

9/18/2024

Investigating the Potential of Tomato Peel Based Biodegradable Films for Eco-Friendly Packaging

The increasing demand for sustainable and biodegradable materials has led to a surge in research on plant-based alternatives to traditional plastics. Tomato peels, a byproduct of tomato processing, offer a promising source for the development of such materials. This study focuses on the water vapor barrier properties of a film made from tomato peels, a critical factor for various applications, including food packaging and medical use.



To determine the water vapor transmission rate (WVTR) of the film, the cup method, also known as the gravimetric method, was employed. Labthink C360H water vapor transmission rate tester was used for this purpose.

The testing procedure involved placing the film between a desiccant-filled cup and a lid, creating a sealed chamber. The testing procedure involved placing the film between a desiccant-filled cup and a lid, creating a sealed chamber. The equipment then measured the weight change of the cup over time to determine the WVTR.

The WVTR of the tomato peel film was found to be 72.317 g/(m²·24h). While this value indicates a moderate water vapor barrier, it may not be sufficient for applications requiring high levels of moisture resistance.


Labthink C360H Water Vapor Transmission Rate Test System is designed and manufactured based on the gravimetric determination method and conforms to the requirements of ASTM E96. This instrument can be used to measure the water vapor transmission rate of barrier materials with high, medium and lower moisture barrier properties with a wide testing range and high testing efficiency. The instrument features Labthink’s patented test chamber design with multiple test dishes. C360H is equipped with precision made test dishes, highly accurate balance, embedded professional software which supports automatic controlling of temperature, humidity and flow rate precisely and guarantees the testing sensitivity and repeatability of the test results. C360H is applicable to determination of water vapor permeability of plastic films, sheeting, paper, packages and other packaging materials in food, pharmaceutical, medical apparatus, building materials and consumer goods, etc.

To improve the water vapor barrier properties of tomato peel-based films, several strategies can be explored. For instance, combining tomato peel extract with other biopolymers, such as starch or chitosan, can enhance the film's barrier properties. Or applying coatings or treatments to the film's surface can create a more effective barrier against water vapor.

Tomato peel-based films offer a sustainable and biodegradable alternative to traditional plastic films. However, their water vapor barrier properties may need to be improved for certain applications. Future research and development efforts will be crucial in optimizing these films for various uses.


As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/17/2024

Comprehensive Testing Solution for Non-PVC Infusion Bags



The increasing use of non-PVC multi-layer coextruded film infusion bags in healthcare sector necessitates rigorous quality control to ensure the safety and efficacy of medications. One critical aspect of quality assurance is the testing of these bags' sealing performance.



Heat Sealing Strength Testing

The heat sealing strength of a non-PVC infusion bag is a crucial indicator of its integrity. A poorly sealed bag can lead to leakage, contamination, and loss of medication. This test ensures that the sealed edge is strong enough to withstand the pressure of the infused liquid and prevent leakage during handling and storage. To assess this property, Labthink Auto Tensile Testers can be employed.


Labthink C610M Auto Tensile Tester is professionally applicable to measurement of tensile, peeling, deformation, tearing, heat sealing, adhesive, puncture force, opening force, pulling force and low speed unwrapping force as well as other properties of plastic films, composite materials, soft package materials, plastic flexible tube, adhesives, adhesive tapes, label stickers, medical plasters, release paper, protective films, combined caps, aluminum foils, diaphragms, back sheets, non-woven fabrics, rubber and paper, etc.

Leak and Seal Strength Testing

This test is vital to prevent the loss of medication and potential contamination. It ensures that the bag can withstand the pressure of the infused liquid without compromising its integrity. To verify the absence of leaks in an infusion bag, Labthink Leak and Seal Strength Tester is utilized.


Labthink C660B Leak and Seal Strength Tester is professionally designed for the leakage tests of packages for food, drugs, medical instruments, household chemical products, cars, electronic components, stationeries and other industrial products. The instrument also can be used to test seal performance of specimens after falling and compression tests

Burst Test

In addition to leak and seal strength testing, burst tests on infusion bags is also important. This test determines the maximum pressure the bag can withstand before bursting, ensuring its durability and safety during handling and transportation.


Labthink C660M Leak and Seal Strength Tester is professionally applicable to quantitative determination of seal strength, seal quality, burst pressure, seal integrity, compression resistance, torsion force and joint/disengaging force of various flexible packages, aseptic packages, plastic tamper-evident closures, flexible tubes, caps and other materials.

Testing the heat sealing performance, leak and seal strength, and burst resistance of non-PVC infusion bags is essential for ensuring their quality and safety. By employing specialized testing instruments, healthcare providers and manufacturers can maintain high standards and protect the integrity of medications.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/13/2024

The Impact of Sterilization on the Oxygen Barrier Properties of PVDC Composite Film

Introduction

The sterilization process is a critical step in food processing, ensuring the safety of products. However, this process can also influence the properties of packaging materials. This study investigates the effect of sterilization on the oxygen barrier properties of PVDC composite film, a commonly used packaging material.



Materials and Methods

PVDC composite film samples were subjected to a sterilization process. The oxygen permeability of these samples was measured both before and after sterilization using Labthink C230H Oxygen Transmission Rate Test System. This system employs the coulometric method, also known as the equal-pressure method, to determine oxygen transmission rates.

The test procedure involved cutting samples from the film, clamping them into the test chambers of the instrument, and setting parameters such as temperature and humidity. High-purity oxygen and nitrogen were introduced into the upper and lower chambers, respectively. The oxygen that permeated through the film was measured by the coulometric sensor.


Labthink C230H Oxygen Transmission Rate Test System is designed and manufactured based on the coulometric sensor method (aka. equal pressure method) and conforms to ASTM D3985. This instrument can be used to measure the oxygen transmission rate of barrier materials with high and medium barrier properties with high accuracy and high efficiency. The instrument features Labthink’s patented design of integrated test block consisting of three permeation cells. Equipped with a high precision coulometric sensor and Labthink’s professional computer-controlled system, the instrument can regulate and control the temperature, humidity and flow rate precisely, guaranteeing high sensitivity and excellent repeatability of test results. C230H is applicable to the determination of oxygen permeability of plastic films, sheeting, paper, and other packaging materials used in food, pharmaceutical, medical apparatus, consumer products, photovoltaic and electronic industries, etc. Optional accessories extend the capability to testing complete packages and systems such as bottles, pouches, cartons, blister packs, tubes and more.

Results and Discussion

The results indicated that sterilization significantly improved the oxygen barrier properties of the PVDC composite film. The oxygen transmission rate of the sterilized samples was lower than that of the unsterilized samples. This suggests that the sterilization process may have altered the molecular structure of the film, making it less permeable to oxygen.

Conclusion

This study demonstrates that sterilization can enhance the oxygen barrier properties of PVDC composite film. The coulometric method used in the C230H Oxygen Transmission Rate Test System proved to be an effective tool for measuring these properties. Further research is needed to explore the specific mechanisms involved in the sterilization-induced improvement of oxygen barrier properties and to assess the potential implications for food packaging applications.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/11/2024

Evaluating the Breathability and Moisture Barrier Performance of Waterproof Fabric Coatings

Waterproof fabric coatings are essential in various industries, from outdoor apparel to construction materials. They provide protection against moisture, enhancing durability and performance. To ensure the effectiveness of these coatings, rigorous testing is crucial. This article explores the testing methods commonly used for waterproof fabric coatings, drawing on the principles outlined in the provided paper on exterior wall coatings.



Key testing methods include Water Vapor Transmission Rate (WVTR), Water Resistance Test, Durability Testing and so on.

Water Vapor Transmission Rate (WVTR) test measures the rate at which water vapor passes through the fabric. It's essential for assessing the coating's breathability, preventing moisture buildup and ensuring comfort. The cup method can be adapted for fabric coatings. By placing a sample between a high-humidity chamber and a low-humidity chamber, the weight change over time can determine the WVTR.


Labthink C360M Water Vapor Transmission Rate Test System is designed and manufactured based on the gravimetric determination method and conforms to the requirements of ASTM E96. This instrument can be used to measure the water vapor transmission rate of barrier materials with high, medium and lower moisture barrier properties with a wide testing range and high testing efficiency. The instrument features Labthink’s patented test chamber design with multiple test dishes. C360M is equipped with precision made test dishes, highly accurate balance, embedded professional software which supports automatic controlling of temperature, humidity and flow rate precisely and guarantees the testing sensitivity and repeatability of the test results. C360M is applicable to determination of water vapor permeability of plastic films, sheeting, paper, packages and other packaging materials in food, pharmaceutical, medical apparatus, building materials and consumer goods, etc.

Water resistance test evaluates the fabric's ability to resist water penetration. It often involves applying a hydrostatic pressure to the fabric and measuring the pressure at which water starts to pass through. A higher pressure rating indicates better water resistance.

Durability testing is to assess the coating's long-term performance, durability tests are conducted. These may include abrasion resistance, UV exposure, and chemical resistance tests. These tests evaluate the coating's ability to withstand wear and tear, maintain its waterproof properties, and resist degradation from environmental factors.


Labthink C681M Flex Durability Tester is professionally applicable to the determination of flex durability of composite films and flexible coated materials. The instrument can simulate the kneading and creasing behaviors of the materials happened during production, processing and transportation. The flex durability can be obtained by measuring the changes in number of pinholes or barrier properties after test, which can provide quantitative basis for package design and practical usage.

Testing waterproof fabric coatings is vital to ensure their quality and performance. By employing methods such as WVTR, water resistance, rain penetration, water absorption, and durability testing, manufacturers can evaluate the effectiveness of their coatings and make necessary improvements. The information provided in the original paper on exterior wall coatings offers valuable insights into testing principles and methodologies that can be adapted for fabric coatings.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/10/2024

Aseptic Medical Device Packaging Puncture Resistance Testing Solution

Aseptic medical device packaging plays a critical role in ensuring the sterility and safety of medical devices. One essential property of this packaging is puncture resistance, which prevents contaminants from entering the package. This article will discuss the testing of puncture resistance in aseptic medical device packaging, drawing on the information provided in the original article.


Aseptic medical device packaging utilizes various types of packaging materials, such as plastic films, pouches, or trays. The specific material will depend on the type of medical device and the required level of sterility.

The puncture strength test is a standard method used to assess the resistance of packaging materials to penetration.

Labthink C610H intelligent electronic tensile testing machine is a versatile instrument capable of performing various mechanical tests, including puncture strength. This instrument is also applicable to measurement of tensile, peeling, deformation, tearing, heat sealing, adhesive, opening force, pulling force and low speed unwrapping force as well as other properties of plastic films, composite materials, soft package materials, plastic flexible tube, adhesives, adhesive tapes, label stickers, medical plasters, release paper, protective films, combined caps, aluminum foils, diaphragms, back sheets, non-woven fabrics, rubber and paper, etc.



While puncture resistance is a critical property, it's important to consider other factors when evaluating aseptic medical device packaging such as seal integrity, barrier properties and so on.

Puncture resistance is a vital characteristic of aseptic medical device packaging. By conducting puncture strength tests using an intelligent electronic tensile testing machine, manufacturers can assess the suitability of their packaging materials and ensure the safety and sterility of medical devices.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/09/2024

A Case study on Sponge Cake Packaging Failure -Analysis and Test Solution

Packaging plays a crucial role in preserving the quality and safety of food products. When packaging failures occur, it can lead to product spoilage, consumer dissatisfaction, and financial losses. This case study examines a specific instance where a sponge cake packaged in three-side sealed bags experienced mildew formation, bag deflation, and gas composition changes. To identify the root causes of these issues, a thorough packaging testing regimen was conducted, focusing on the properties of the packaging materials.


Labthink packaging test center utilized a range of specialized instruments to assess the performance of the packaging materials. These tests included Oxygen Transmission Rate (OTR), Nitrogen Transmission Rate (NTR), Heat-Seal Strength, Leak Test (Vacuum Degree) and Headspace Air Analysis.

The testing revealed several critical issues with the packaging materials. High OTR and NTR, which means the packaging material exhibited relatively high OTR and NTR values, indicating poor oxygen and nitrogen barrier properties. This allowed oxygen to enter the package and nitrogen to escape, leading to product spoilage; low heat-seal strength contributing to package leakage and bursting, allowing moisture and contaminants to enter; deflated bags and gas composition changes shortened the shelf life of the product and contributed to mildew formation. The combination of high OTR, NTR, and weak heat seals resulted in deflated bags and altered gas composition within the packages.

Based on the test results, several recommendations were made to improve the packaging performance:

Barrier Properties: Consider using materials with superior barrier properties, such as aluminum-coated composite films. These materials can significantly reduce the OTR and NTR.


C201B Oxygen Transmission Rate Test System is designed and manufactured based on the coulometric sensor method and conforms to ASTM D3985. This instrument can be used to measure the oxygen transmission rate of barrier materials with high and medium barrier properties with high accuracy and high efficiency. C201B is applicable to the determination of oxygen permeability of plastic films, sheeting, paper, and other packaging materials used in food, pharmaceutical, medical apparatus, consumer products, photovoltaic and electronic industries, etc.

Heat-Seal Strength: Optimize the heat-sealing parameters to ensure strong and consistent seals. This may involve adjusting the temperature, pressure, and dwell time.



The melting point, thermal stability, fluidity and thickness are the factors that may influence the heat sealing properties of materials. The heat sealing parameters for those materials are quite different. C630H Heat Seal Tester can be used to determine the optimal heat sealing parameters including dwell time, sealing pressure and sealing temperature for plastic films, flexible composite films, plastic coated paper and other heat-sealable films.

Leak Testing: Implement a rigorous leak testing process to identify and eliminate defective packages before they reach consumers.


Labthink C660B Leak and Seal Strength Tester is professionally designed for the leakage tests of packages for food, drugs, medical instruments, household chemical products, cars, electronic components, stationeries and other industrial products. The instrument also can be used to test seal performance of specimens after falling and compression tests

By addressing these issues, the packaging of the sponge cake can be improved to enhance product quality, extend shelf life, and reduce waste.

9/08/2024

Maximize Meat Shelf Life by Effective Packaging Quality Control

Ensuring the quality and safety of meat products is paramount in the food industry. Packaging plays a crucial role in preserving product integrity and extending shelf life. This article explores two case studies involving meat product packaging issues and highlights the importance of comprehensive testing to identify underlying causes and develop effective solutions.

Case Study 1: Ready-to-Eat Chicken

The first case involved ready-to-eat chicken packaged in aluminum composite material. Bag inflation and mildew were observed, indicating compromised barrier properties, flex durability, and seal strength.


Oxygen Transmission Rate (OTR): This test measures the rate at which oxygen permeates the packaging material, affecting product oxidation and spoilage.

OTR after Flex: This test evaluates the impact of flexing the packaging on its barrier properties, which is important for handling and transportation.


Labthink C203H Oxygen Transmission Rate Test System is based on Coulometric oxygen analysis sensor and equal pressure test method, and is conforming to ASTM D 3985 and other standards. It provides high-precision and high-efficiency oxygen permeability tests for high and medium gas barrier materials. It is suitable for testing the oxygen permeability of thin films, sheets and related materials in the fields of food, medicine, medical devices, daily chemical, photovoltaic, electronic and other fields.

Leak Test: This test determines the packaging's airtightness under vacuum conditions.

Heat-Seal Strength: This test measures the strength of the heat-sealed seams, ensuring proper closure and preventing leakage.


Labthink C660B Leak and Seal Strength Tester is professionally designed for the leakage tests of packages for food, drugs, medical instruments, household chemical products, cars, electronic components, stationeries and other industrial products. The instrument also can be used to test seal performance of specimens after falling and compression tests

The results indicated good heat-seal strength but poor flex durability and barrier properties. Flexing the packaging caused pinholes to appear and increased OTR. Additionally, the bag was found to have low airtightness, leaking under vacuum pressure.

Case Study 2: Vacuum-Bagged Sausage

In the second case, vacuum-bagged sausages experienced bag inflation during storage, despite being within their shelf life. This issue was attributed to the low flex durability and high brittleness of the composite packaging material.

To investigate these properties, the following tests were conducted:

Pendulum Impact Test: This test measures the packaging material's resistance to impact, which is crucial for preventing punctures and tears.

Breaking Force and Elongation at Break: These tests evaluate the material's tensile strength and flexibility, respectively.

The results revealed that the packaging film's resistance to pendulum impact was lower than the industry average, indicating high brittleness. Additionally, the low elongation at break, particularly in the horizontal direction, suggested poor flex durability.

Conclusion

By conducting comprehensive testing and analyzing the results, it is possible to identify the underlying causes of packaging-related issues in meat products. The case studies presented in this article demonstrate the importance of evaluating factors such as flex durability, barrier properties, and seal strength. By addressing these issues through material selection, process optimization, or design modifications, packaging can be effectively tailored to meet the specific needs of meat products and ensure their quality and safety.


As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/05/2024

WVTR Testing System for Gummy Candy Packaging

Gummy candy, a popular confectionery, requires appropriate packaging to maintain its quality and extend its shelf life. One crucial aspect of packaging is its barrier properties, particularly moisture resistance, which prevents the candy from becoming stale or sticky. This article explores the testing methods and results for evaluating the moisture resistance of gummy candy packaging materials.



The shelf life of gummy candy is influenced by various factors, including the moisture content of the candy itself and the barrier performance of its packaging. Sugar, a primary ingredient in gummy candy, acts as a natural preservative, inhibiting microbial growth. However, improper storage can still lead to issues like mold, oxidation, and deterioration.

To counteract these challenges, gummy candy packaging must effectively prevent the penetration of moisture and oxygen. This helps maintain the candy's texture, flavor, and appearance throughout its shelf life.

To assess the moisture resistance of gummy candy packaging materials, a water vapor transmission rate (WVTR) test is commonly employed. This test measures the amount of water vapor that passes through a given area of the material over a specific time period.

The cup method, which conforms to ASTM E96 standards, is often used for WVTR testing. This method involves placing a desiccant within a sealed chamber and measuring the weight gain over time as water vapor permeates the material.



For this study, Labthink C360M Water Vapor Transmission Rate Test System was used. This instrument, independently developed and produced by Jinan Labthink Instruments Co., Ltd., offers precise control over temperature, humidity, air velocity, and other relevant parameters.

The WVTR of the front and back composite film materials used in gummy candy packaging was evaluated. Multiple specimens were tested, and the average WVTR was calculated for each side.

The results indicated that the moisture resistance of the front and back materials differed. The back material exhibited significantly better moisture resistance than the front material. This finding highlights the importance of considering both sides of the packaging when assessing its overall barrier properties.

The moisture resistance of gummy candy packaging is a critical factor in maintaining product quality and extending shelf life. By conducting WVTR tests, manufacturers can evaluate the effectiveness of their packaging materials in preventing moisture penetration. This information can be used to optimize packaging design and ensure that gummy candy reaches consumers in optimal condition.


As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/04/2024

Barrier Properties and Gas Composition Analyzing for Nitrogen Filled Packaging

Nitrogen-filled packaging has become a standard practice in preserving food and medicine, as it effectively prevents oxidative deterioration and microbial growth. To ensure the efficacy of this packaging method, it is crucial to evaluate the barrier properties of the packaging materials. This article presents a detailed analysis of nitrogen-filled packaging, focusing on the tested items, testing methods, and instruments employed.



The primary objective of the study was to assess the impact of packaging material barrier properties on the quality of nitrogen-filled packaging. To achieve this, the gas composition within nitrogen-filled packages and the permeability of the packaging materials to nitrogen and oxygen were examined.

The study utilized a cake nitrogen-filled package as the sample. The gas composition within the package after a specific storage period was analyzed using a headspace gas analyzer. The permeability of the packaging material to nitrogen and oxygen was determined using a differential pressure gas permeability tester.

The differential pressure method, based on ASTM D1434, was employed to measure gas permeability. This method involves creating a pressure differential across a sample and monitoring the rate at which gas permeates through it.

The testing instrument utilized in this study include Labthink C650H Headspace Gas Analyzer and Labthink VAC-V2 Differential Pressure Gas Permeability Tester.


C650H Headspace Gas Analyzer is of professional structure design and is with high-precision sensor, the O2 Content in sealed bags, bottles, cans and other hollow packaging containers can be accurately and conveniently determined. Meanwhile, with the selection of test accessories, CO2 can also be tested. It is suitable for the production line, warehouse, laboratory and other scenes to quickly and accurately evaluate the content of O2 and CO2 in the gas, so as to guide the production.



VAC-V2 is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, composite films, high barrier materials, sheeting and aluminum foils.

The study found that the packaging materials had a relatively high permeability to both nitrogen and oxygen. This indicates that the barrier properties of the packaging were insufficient to maintain a high nitrogen concentration within the package over time. Consequently, the oxygen content increased significantly, while the nitrogen content decreased, compromising the quality-preserving effects of nitrogen-filled packaging.

In conclusion, this analysis highlights the importance of selecting packaging materials with superior barrier properties to ensure the effectiveness of nitrogen-filled packaging. By carefully evaluating the permeability of packaging materials to nitrogen and oxygen, manufacturers can optimize the design and performance of nitrogen-filled packages, thereby preserving the quality of products for extended periods.


As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/03/2024

Evaluating Heat Patch Inner Packaging Oxygen Permeability

Heat patch is a product designed to provide heat and warmth, often used for personal comfort or therapeutic purposes. It typically comes in a paste or patch form and can be applied directly to the skin. The effectiveness of heat patches is significantly influenced by the oxygen permeability of their inner packaging materials. Oxygen plays a vital role in the exothermic reaction within the patch, and its rate of transmission can directly impact the patch's temperature and duration of heat delivery. This study explores the oxygen permeability of a heat patch inner packaging material using the differential pressure method.


The differential pressure method is a widely used technique to measure gas permeability. It involves creating a pressure difference across the material and measuring the rate at which gas diffuses through it. This method is particularly suitable for materials with relatively high oxygen permeability, such as those used in heat patch inner packaging.

Labthink C106H Gas Permeability Test System is a specialized instrument designed for measuring gas permeability. It operates based on the differential pressure principle and is compliant with international standards like GB, ISO, and ASTM. This system offers precision and reliability in determining the oxygen transmission rate of various materials, including heat patch inner packaging.



In this study, a sample of non-woven fabric used as the inner packaging for a heat patch was subjected to oxygen permeability testing using the C106H system. The test results revealed an oxygen transmission rate of 7.634 × 10⁷ cm³/(m²·24h·0.1MPa). This information provides valuable insights into the material's ability to allow oxygen to pass through while maintaining the desired heat patch performance.

Oxygen permeability is a critical factor in ensuring the optimal performance of heat patches. By understanding the oxygen transmission rate of the inner packaging material, manufacturers can fine-tune the design and composition of their products to achieve the desired temperature and duration of heat delivery. The C106H Gas Permeability Test System offers a reliable and efficient method for assessing this important property, enabling the development of high-quality heat patches that meet consumer needs.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/02/2024

OTR Testing of Aluminum Plastic Composite Bags

The oxygen barrier properties of packaging materials are crucial to maintaining the quality and shelf life of packaged products, especially when dealing with perishable goods like food. This article discusses the testing of oxygen transmission rates (OTR) in aluminum plastic composite film packaging bags used for food packaging.



The coulometric method was employed to measure the OTR of the packaging bags. This method involves creating a concentration difference between high-purity oxygen on one side of the sample and high-purity nitrogen on the other. As oxygen permeates through the material, it is detected by a coulometric sensor, allowing for a precise measurement of OTR.



Labthink C230H Oxygen Transmission Rate Test System was used for the testing. This instrument is designed to accurately measure the OTR of various materials, including plastic films, sheeting, paper, and packages. It features a high-precision coulometric sensor, temperature and humidity control, and a user-friendly interface.

The OTR of the aluminum plastic composite film packaging bags was found to be 0.2346 cm³/pkg·24h. This value indicates the rate at which oxygen penetrates the packaging.

The oxygen barrier properties of packaging materials are essential for ensuring the quality and safety of food products. The coulometric method, as employed in this study, provides a reliable and accurate means of measuring OTR. Labthink C230H Oxygen Transmission Rate Test System is a valuable tool for researchers and quality control professionals in the food packaging industry. By understanding the OTR of packaging materials, manufacturers can select appropriate materials and optimize packaging designs to preserve product quality.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

9/01/2024

Evaluating Total Migratable Matter in Hot Drink Cup /Disposable Cups

The safety of disposable cups used for hot beverages has become a growing concern due to the potential migration of harmful substances into the drinks. To ensure consumer safety, it is essential to evaluate the total migratable matter (TMM) content in these cups.

Hot drink cups often contain plastic linings or coatings to prevent leakage and maintain structural integrity. However, these materials can release chemicals into the beverage, potentially posing health risks. TMM testing is crucial to assess the extent of migration and ensure that the cups meet safety standards. By evaluating the TMM content, manufacturers can identify and address any potential hazards, safeguarding consumer health.


The TMM test typically involves simulating the conditions under which a hot drink would be consumed. This includes using appropriate food simulants, such as ethanol, to mimic the beverage's properties. The test is conducted under controlled temperature and time conditions to replicate real-world usage.

The International Organization for Standardization (ISO) provides guidelines for TMM testing. ISO 759-1981 outlines the standard procedures for determining the dry residue after evaporation on a water bath. This standard specifies the food simulants, test conditions, and test methods for migration testing.




Advanced instruments, such as Labthink C830H Migration & Non-volatile-matter Content Tester, are specifically designed for TMM testing. These instruments offer high efficiency, automation, and versatility. They can be used to evaluate migration from various packaging materials, including hot drink cups.

Labthink C830H tester incorporates features like fast evaporation mode and efficient reagent recycling, enhancing testing efficiency. This allows for rapid analysis of multiple samples, ensuring timely results.

TMM testing is a vital aspect of ensuring the safety of hot drink cups. By evaluating the migration of harmful substances, manufacturers can take proactive steps to protect consumer health. The use of advanced instrumentation and adherence to standardized testing procedures are essential for obtaining accurate and reliable results. Through rigorous TMM testing, the industry can contribute to the safety and quality of disposable cups used for hot beverages.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

8/29/2024

Moisture Resistance Testing of Thermal Conductive Silica Gel Pads

Thermal conductive silica gel pads, crucial components in electronic devices, require effective moisture resistance to ensure optimal performance and longevity. This article delves into a comprehensive testing method for evaluating the water vapor transmission rate (WVTR) of these pads.


Electronic components are sensitive to moisture, which can lead to corrosion, short circuits, and reduced reliability. Thermal conductive silica gel pads, often used to facilitate heat dissipation between electronic chips and radiators, play a vital role in preventing moisture ingress. Their moisture resistance properties directly impact the protection of sensitive internal components.

The electrolytic sensor method, a widely recognized standard, is employed to measure the WVTR of thermal conductive silica gel pads. This technique involves creating a controlled environment with a high humidity chamber on one side and a low humidity chamber on the other. A sample of the thermal conductive silica gel pad is placed between these chambers. Water vapor diffusing through the pad is then quantified by measuring the electrolytic current generated as the vapor is absorbed and electrolyzed within a specialized cell.


The C330H Water Vapor Transmission Rate Tester, developed by Jinan Labthink Instruments Co., Ltd., is a sophisticated instrument designed for WVTR testing. It offers precise control over temperature, humidity, and gas flow rates, ensuring accurate and reliable results. The system's user-friendly interface simplifies the testing process, making it accessible to researchers and quality control professionals.

By accurately measuring the WVTR of thermal conductive silica gel pads, the electrolytic sensor method provides valuable insights into their moisture resistance properties. The C330H test system offers a reliable and efficient means of conducting these tests, ensuring the quality and performance of electronic devices. Understanding the moisture resistance characteristics of these pads is essential for selecting appropriate materials and designing effective moisture barriers in electronic applications.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

8/27/2024

Comprehensive Aluminum plastic composite APC Panel Testing Solutions

Aluminum plastic composite (APC) panels are widely used in construction and decoration due to their versatility and durability. To ensure product quality and compliance with industry standards, rigorous testing is essential.




Aluminum Thickness, Composite Adhesive Film Thickness, and Deviation Detection: A thickness gauge with a minimum division value of 0.001 mm is used to measure aluminum thickness. Labthink C640 Thickness Tester meets this requirement. The tester is conformed with ISO 4593, ISO 534, ASTM D6988, and ASTM F2251, it can be used for thickness measurement of films, sheeting, paper, corrugated paperboard, textiles, non-woven fabrics, and solid insulation materials, etc. Auto sampler is optional, which is designed for multiple successive points thickness measurement.



Peel Strength Test: The peel strength between the aluminum plate and plastic is crucial for durability. C610H Auto Tensile Tester is professionally applicable to measurement of tensile, peeling, deformation, tearing, heat sealing, adhesive, puncture force, opening force, pulling force and low speed unwrapping force as well as other properties of plastic films, composite materials, soft package materials, plastic flexible tube, adhesives, adhesive tapes, label stickers, medical plasters, release paper, protective films, combined caps, aluminum foils, diaphragms, back sheets, non-woven fabrics, rubber and paper, etc. The instrument conforms to ISO 37, ASTM E4, ASTM D882, ASTM D1938, ASTM D3330, ASTM F88, and ASTM F904.


Tear Strength Test of Composite Adhesive Film: The Elmendorf method is used to measure tear strength. C680M Elmendorf Tear Tester is suitable for testing tear resistance of films, textiles, paper or board based on ASTM F1922.



Labthink offers a comprehensive range of testing instruments that meet the requirements of international standards. These instruments ensure accurate and reliable testing of APC panels, helping manufacturers maintain quality standards and comply with regulations.

By conducting thorough testing utilizing Labthink's advanced testing instruments, manufacturers can ensure the quality and performance of their APC panels, meeting the demands of the construction and decoration industry.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

8/26/2024

Moisture Permeability Testing System for Ensuring Organosilicon Coating Quality

Organosilicon elastic coatings are increasingly popular in building construction due to their superior weather resistance and durability. However, their moisture barrier properties are crucial to their long-term performance. To ensure the quality and effectiveness of these coatings, it's essential to conduct rigorous moisture permeability testing.



Moisture permeability refers to the ability of a material to allow water vapor to pass through it. For organosilicon elastic coatings, this property is particularly important as it can affect their adhesion, durability, and overall performance. High moisture permeability can lead to issues such as blistering, delamination, and mold growth.

There are several methods to measure the moisture permeability of organosilicon elastic coatings. One commonly used method involves sealing a coated sample on a test chamber and exposing it to a controlled humidity environment. The rate at which water vapor passes through the coating is then measured.

The ISO7783-2 standard is a widely accepted method for assessing moisture permeability. It involves using a saturated ammonium dihydrogen phosphate solution to create a constant humidity difference between the inside and outside of the test chamber. This allows for accurate measurement of the water vapor transmission rate (WVTR) of the coating.




Labthink C360M water vapor transmission rate tester is a precision instrument designed to meet the requirements of the ISO7783-2 standard. It incorporates advanced features such as high-precision load cells, temperature and humidity control, and computer-based data acquisition. This ensures accurate and reliable measurements of moisture permeability.

Moisture permeability is a critical factor to consider when evaluating the performance of organosilicon elastic coatings. Labthink C360M water vapor transmission rate tester provides a reliable and efficient method for assessing this property. By adhering to the ISO7783-2 standard and utilizing this advanced instrument, manufacturers and users can ensure the quality and durability of their organosilicon coatings.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

8/25/2024

Building Wall Membrane Water Vapor Permeability Testing

Building wall membranes play a vital role in enhancing building performance by improving airtightness, waterproofing, and energy efficiency. One of the key properties of these membranes is their water vapor permeability, which affects their ability to prevent moisture buildup and maintain a healthy indoor environment.


The water vapor permeability of building wall membranes is typically tested according to ASTM E96, a standard widely used in the United States. This method involves creating a humidity difference between the two sides of the membrane sample at a controlled temperature and measuring the rate of water vapor permeation.

Labthink C360H is a specialized instrument designed for testing water vapor permeability according to ASTM E96. It features a high-precision weighing sensor to accurately measure the weight change of the test cup, which corresponds to the amount of water vapor that has permeated through the membrane. The instrument also includes advanced temperature and humidity control technology to ensure precise test conditions.

Accurate testing of water vapor permeability is essential for several reasons:

Mold Prevention: High water vapor permeability helps to prevent moisture buildup within the building structure, which can lead to mold growth and associated health problems.

Energy Efficiency: By effectively removing moisture, building wall membranes can help to maintain the building's insulation properties, reducing energy consumption for heating and cooling.

Structural Integrity: Excessive moisture can degrade building materials and compromise structural integrity.


The water vapor permeability of building wall membranes is a crucial factor in ensuring the long-term performance and durability of buildings. By using specialized testing instruments like Labthink C360H and following standards like ASTM E96, it is possible to accurately assess this property and select appropriate materials for construction projects.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

8/21/2024

Accurate Water Vapor Permeability Assessment with the Labthink C360H

Rubber plastic insulation sheet, a high-quality thermal insulation material, plays a vital role in reducing energy consumption and improving building efficiency. To ensure its optimal performance, it is essential to assess its water vapor permeability, as this property directly affects its service life.

Rubber plastic insulation sheet derives its insulating properties from the tiny air bubbles within its structure. The more abundant these bubbles, the higher the gas content and, consequently, the better the insulation effect. However, when exposed to varying temperature and humidity conditions, water vapor can penetrate the material. This is problematic because water has a higher thermal conductivity than air, leading to a decrease in insulation efficiency and a shorter lifespan. Therefore, the water vapor resistance of thermal insulation materials is a critical factor for long-term durability.


The Labthink C360H Water Vapor Transmission Rate Test System is a specialized instrument designed to accurately measure the water vapor transmission rate of materials like rubber plastic insulation sheet. This instrument is designed and manufactured based on the gravimetric determination method and conforms to the requirements of ASTM E96. This instrument can be used to measure the water vapor transmission rate of barrier materials with high, medium and lower moisture barrier properties with a wide testing range and high testing efficiency. The instrument features Labthink’s patented test chamber design with multiple test dishes. C360H is equipped with precision made test dishes, highly accurate balance, embedded professional software which supports automatic controlling of temperature, humidity and flow rate precisely and guarantees the testing sensitivity and repeatability of the test results. C360H is applicable to determination of water vapor permeability of plastic films, sheeting, paper, packages and other packaging materials in food, pharmaceutical, medical apparatus, building materials and consumer goods, etc.

To evaluate the water vapor permeability of rubber plastic insulation sheet, the ASTM E96 standard is commonly followed. This standard requires a controlled environment with a constant temperature and humidity of (23 ± 1) °C and a relative humidity of (50 ± 3)%. The test involves placing a sample of the insulation sheet within a test chamber, with a desiccant inside to create a 0% humidity environment. The water vapor from the surrounding air then permeates the sample, and the rate of water vapor transmission is measured by regularly weighing the test cup.

By using advanced testing equipment, manufacturers and users of rubber plastic insulation sheet can effectively assess its water vapor permeability, ensuring that it meets the required standards for energy efficiency and long-term durability.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

8/20/2024

Polyethylene Geomembrane Testing for Ensuring Quality and Durability

Polyethylene geomembrane, a flexible waterproof material with exceptional properties, finds widespread application in various construction projects. To guarantee its performance and durability, rigorous testing is essential. This article delves into the key testing methods, instruments, and the advantages of conducting such evaluations.



Conducting comprehensive testing on polyethylene geomembrane offers several advantages. First of all, testing helps ensure that the material meets the required standards and specifications, preventing potential failures and costly repairs. By identifying any weaknesses or defects early on, testing can help select materials that are more durable and long-lasting. Investing in testing can save money in the long run by preventing costly failures and reducing maintenance costs. In addition, testing helps demonstrate compliance with standards and regulations requirements, adhering to industry standards and regulations is essential for project approval and acceptance.

The quality of polyethylene geomembrane is assessed through several crucial tests:


Thickness: Uniform thickness is critical for ensuring consistent performance. Labthink C640 thickness measuring instruments provide high-precision measurements with a resolution of 0.1 µm.


Tensile Strength and Elongation: These parameters indicate the material's resistance to stretching and tearing. Labthink C610H Auto Tensile Tester can accurately measure these properties.

Right-Angled Tearing Strength: This test evaluates the material's resistance to tearing, which is crucial for preventing the propagation of tears. Labthink C610H Tensile Tester, equipped with dedicated tear test functions, can efficiently conduct this evaluation.



Water Vapor Penetration Coefficient and Moisture Permeability: These tests assess the material's ability to resist water vapor and moisture penetration. Labthink C360H and C360M Water Vapor Transmission Rate Test Systems, designed for computer control and high-precision measurements, are ideal for this purpose.

Testing is an indispensable step in ensuring the quality and reliability of polyethylene geomembrane. By employing appropriate testing methods and instruments, such as those offered by Labthink, stakeholders can make informed decisions and safeguard the integrity of their projects.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

8/19/2024

Waterproof Breathable Film Water Vapor Transmission Rate Testing for Optimal Building Protection

The quest for energy-efficient and healthy buildings has led to innovations in materials, and one such breakthrough is waterproof and breathable film. This material, while effectively shielding buildings from rain and wind, also allows moisture vapor to escape, preventing mold growth and maintaining indoor air quality.


To ensure the efficacy of these films, rigorous testing is essential. The core property to evaluate is water vapor permeability – the film’s ability to let water vapor pass through without allowing liquid water to penetrate. This is crucial as it prevents moisture build-up within the building envelope, a primary cause of mold and structural damage.

The standard method for measuring water vapor permeability is outlined in ASTM E96. It involves creating a specific humidity difference across the film sample and measuring the amount of water vapor that passes through over time. This data helps determine the film’s water vapor transmission rate (WVTR).



To conduct these tests accurately and efficiently, specialized equipment like the Labthink C360H moisture permeability tester is employed. This instrument offers high precision weighing sensors, advanced temperature and humidity control, and a 12-cell design for increased throughput. By automating the testing process and minimizing external influences, Labthink C360H delivers reliable and consistent results.

In conclusion, the water vapor permeability test is a critical step in ensuring the quality and performance of waterproof and breathable films. With advanced testing equipment like the Labthink C360H, manufacturers can confidently deliver products that contribute to healthier, more energy-efficient buildings.

As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!