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Aseptic bags Production And Quality Control Testing March 22,2019.

How to produce the aseptic bags?

The production environment of aseptic bags needs to be performed in a clean room above level C.

Aseptic bag production process is mainly divided into blown film, cutting, heat sealing bag, vacuum packaging, sterilization and so on.


Blown film:

Must first open the air purification system in the workshop, disinfect and sterilize the workshop and operating personnel, and then blow the membrane through the purified polyethylene particles at a certain temperature;


Cutting:

The tubular film obtained after blown film is cut into different size film barrels according to the customer’s requirements;


Heat sealed bag:

Sealing the film cylinder with a heat sealer;


Vacuum packaging:

The aseptic packaging bag after sealing is vacuum packed according to a certain amount; Because it is very easy to be polluted during the transportation.


Sterilization:

The packaged aseptic bags are gamma sterilized to achieve the sterility requirements of the product.

Compared with ordinary food packaging bags, the essence of aseptic packaging bags is still a plastic bag, and its material and production process are not much different. However, aseptic bags must be carried out in a clean room, through a complex sterilization process to achieve the strict requirements of aseptic packaging. It is a specialized manufacturing process in which food, pharmaceutical, or other contents are sterilized separately from packaging. The contents are then inserted into the pouches in a sterile environment



How to test your aseptic bags water vapor transmission rate WVTR?



GBPI W501 Water Vapor Permeability Tester can greatly help you testing your aseptic bags WVTR,below introduce some technical details about our WVTR Tester W501

water vapor permeability tester


Application

W501 Water Vapor Permeability Analyzer test the water vapor transmission rate of various materials, including: plastic film, composite film, aluminum-plated film, aluminum foil etc.; sheets, such as PP sheet, PVC sheet, rubber, building material, porcelain; other application, such as solar panel, paint film, medical patch etc. It is widely used in packaging, plastic film, food, pharmaceuticals, personal care industries, inspection agency, research institute, college and so on.



Working Principle

Gravimetric method. Fix the test sample in the middle of test chamber to separate the chamber into upper room and lower room; humid gas flows in upper room, and place desiccant device in lower room; as in lower room it remains dry (0-8%RH) by desiccant, water molecules penetrate through the sample from upper room into lower room, absorbed by desiccant; then the cup weight will increase; system weigh the increasing cup weight so as to calculate the water vapor transmission rate.



Testing Standard: GB 1037, GB/T 16928, YBB00092003, ASTM E96, ASTM D1653, ISO 2528, TAPPI T464, DIN 53122-1, JIS Z0208




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