Tel: +86 188 2689 9458
source:other news release time:2022-10-28 Hits:

Vacuum packaging bag isolation characteristics, whether it is water vapor transmittance or co2 transmittance, in the whole process of inspection and inspection results should pay attention to the following many levels:
1. The definition of occupation rate is obtained in accordance with the standard of Fick's basic law of plastic film. For co2, except for some raw materials of oxygen therapy, it is generally in accordance with Fick's basic law.
However, because the infiltration of water vapor and organic compounds in the whole process, and many polymers will interact with each other, so generally belong to the non-Fecker's basic law type of spread.
2. For the vacuum packaging bag raw materials, its structure is not necessarily symmetric, so there are both positive and negative problems of the specimen. Some raw materials, polyvinylidene chloride coating process such as polyester cloth "PA", polyvinylidene chloride and the whole process or PE composite bag of its positive and negative sides of the co2 transmittance accurate measurement results are very different, sometimes even can be doubled.
This is because in the whole process of the specific detection, the measured results are the sum of the infiltration across the specimen and the infiltration of the sealing part.
3, in view of the adsorption force, great packaging film, water imbibition in the whole experiment process should consider its adsorption and adsorption, etc. The harm of the test results, the other should be clear general equilibrium time is longer, and even the same natural environment, through the whole process of different equilibrium state does not necessarily in the same way, in other words, not the equilibrium state of raw materials, but associated with equilibrium of natural environment, and with The whole process is related.
Great attention should be paid to the leakage problem in the whole process of the test. All the water vapor transmittance and co2 transmittance obtained by the test are the total number of infiltration and leakage. Only under the standard of leakage can be ignored, the measured infiltration is accurate.
In addition, packaging products and packaging are 2 different definitions, with high barrier packaging products, may not be able to produce a high barrier packaging. From the packaging product to the package, from the package to the customer's hand, in the whole process, many elements are harmful to the final isolation characteristics of the commodity.
Read recommendations:
Wholesale High Barrier Plastic Stand Up Flat Bottom Pet Dog Food Packaging Bag
Coffee Tea pouch Manufacturing
coffee grinds pouch distributors
Understand the color printing technology of packaging bags
The principle of preservation effect of bag in box (BIB).bag in box wine dispenser
Popular recommendation
Super pouch
3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve
Hot Sale BPA Free Plastic Drink Juice Fruit Liquid Packaging Stand Up Bag Spout Pouch
zip lock bag for coffee custom
spout pouch manufacturers
wine bag in box Factory
Spout pouches Processor
mini pet food bag
ordering flexible packaging film roll Manufacturing
flexible packaging houston sales
Why do we use grain bags for vacuum preservation?
What is a coffee bag
Sterilization classification and principle of sterile bags
Do you know these characteristics of the bag in the box?
Ziplock bag manufacturers wholesale
Be careful when purchasing vacuum packaged food
Creative design of coffee bag
Classification of liquid bags
Advantages of coffee bags
Customized milk tea packaging bag manufacturers
What is coffee bag packing?
The necessity of using anti -fog packaging bags for vegetables.aluminium spout pouch Manufacturing
Application materials of composite packaging bags.eco friendly spout pouches manufacture
Before printing on soft packaging, determine the types and usage methods of water-based ink additive
The difference between aluminum foil bag and aluminum plated bag.
I will introduce to you what is the eight -side sealing bag
Why not recommend a large number of dog food or casual, simple Dog Food Bag?petco free dog food bag
The manufacturer tells you how to choose food vacuum bags.smart food snack bags wholesaler
Basic knowledge of packaging bags
The characteristics and advantages of sterile bags for industrial concentrated fruit juice include t