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Tests to Optimize Rosin Jointing and Barrier Properties in Multi-Chamber Infusion Bags


Keywords: Multi-chamber infusion bag, rosin jointing, barrier properties, medical packaging


Multi-chamber infusion bags are a new type of packaging that is gaining popularity in the medical field. They address the limitations of traditional glass bottles and single-chamber plastic bags. These chambers can hold different medications separately until they are ready to be mixed for use. This design offers several advantages, including:

  • Improved safety: By keeping medications separated until use, the risk of contamination and instability is reduced.
  • Easier and more accurate medication dispensing
  • Reduced risk of errors during mixing
  • Better suitability for emergencies






There are some key considerations in Multi-chamber Infusion Bag Production. First of all, rosin jointing. This is the sealing technique used to connect the chambers. It must be strong enough to prevent leakage before use but weak enough to allow for easy opening by medical personnel. The swelling test of the whole bag is a more useful method to assess the sealing performance of rosin joints compared to the tensile strength test.






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.


Barrier properties are also crucial to multi-chamber infusion bag. The bag material should have good barrier properties to protect the medication from factors such as oxygen and water vapor that can cause deterioration. While the current standards do not require testing the oxygen permeation rate of the bag itself, this is still an important factor to consider for choosing packaging materials.




Labthink C406H Oxygen /Water Vapor Transmission Rate Test System is based on the testing principle of Coulometric oxygen sensor and infrared water vapor sensor. It conforms to ASTM D3985、ASTM F1249，ISO 15106-2 and other standards to provide high precision and efficiency oxygen and water vapor transmission rate tests for high barrier materials. It is suitable for testing the oxygen and water vapor transmission performance of films, sheets and related materials in the fields of food, medicine, medical devices and many others.


In conclusion, multi-chamber infusion bags are a promising development in medical packaging. They offer several advantages over traditional options and can help to improve the safety and convenience of infusion treatments.






Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

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