Top-line packagingTel: +86 188 2689 9458

Top-line packagingEmail: info@toplinepackaging.com

Top-line packaging
Top-line packaging

What problems should be paid attention to in the high barrier test of water vapor transmittance and co2 transmittance of vacuum packaging bags?

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:

Aluminum foil bag

stand up Spout pouch manufacturer

mini pet food bag Factory

Common types of transparent vacuum packaging bags

Three elements of the process of steaming bags

Popular recommendation

Kraft paper pouch

Wholesale Price Biodegradable Aluminum 3 Three Side Seal High Temperature Microwavable Food Retort S

Bag-In-Box

Vacuum zipper bag Factory

Spout pouch flexibility company

spout pouch machine distributors

bag in box wine Factory

custom printed spout pouches

bag in box maker

bag in box company

How to distinguish the quality of OPP card head plastic bag?

Packaging bag development history

How to define the specifications and dimensions of packaging bags

The advantages and development prospects of aluminum foil bags

How to deal with the discoloration of food packaging bags?

There will be several "small holes" on the top of the coffee pouch bags, so what is the my

The vacuum packaging bag could not be sealed because of this

What is the difference between vacuum bag and aluminum foil bag

The quality of rice vacuum packaging is very important

What should be paid attention to in the customized production of rice packaging bags.super pouch too

The Application of Vacuum Packaging Bags and Inflatable Soft Packaging Bags to Food

Hazards and detection methods of solvent residues in food flexible packaging.mini Snack food bag com

Flexible Packaging's cutting requirements

Which foods can be packed in vacuum bags?

How to choose high quality PE plastic bag?

What should I pay attention to when the self -sealed bag should pay attention to during the inflatab

What are the abilities of composite food bags..stand up pouches for food package

mini Snack food bag wholesaler.How to identify packaging bags that are environmentally friendly and

How to detect the quality of composite aluminum foil bags?aluminum foil bags for grilling Manufactur

Various materials for anti -static plastic packaging bags.Flexible packaging film roll manufacturers

Share:

Email

Wechat Whatsapp

Leave Your Message