Tel: +86 188 2689 9458
source:other news release time:2023-06-06 Hits:
When composite aluminum foil becomes an aluminum foil bag in a composite bag, the surface of the aluminum foil printing is coated with a protective agent, while the other side is coated with an adhesive. Whether the adhesive coating is uniform and whether there are any holidays will directly affect the sealing quality of the blister packaging, that is, the sealing performance.
Simple discrimination method: In a place with sufficient light, observe with the naked eye. If there are clear straight stripes or very thick and short discontinuous straight horizontal stripes, it is considered a non-conforming product. The bonding layer of qualified products should be very smooth and flawless.
Detection and quantitative method: take 5 pieces of 100 mm | * 100 mm samples from the finished product with 1/10000 Analytical balance, weigh them respectively, wipe off the adhesive with ethyl acetate, butanone or other solvents, and weigh again: the difference between the two is the coating amount, and calculate the average value of the coating amount of 5 pieces. The difference between the coating amount of each piece and the average value should not be more than ± 10%.
In addition, the thickness of the adhesive layer has a significant impact on the degree of bonding fastness. If the adhesive layer is applied too thin, it will reduce the bonding fastness due to the lack of material during hot pressing of PVC hard sheets. The use of a heat sealing instrument to detect the heat sealing strength of the composite layer can determine whether it meets the quality requirements.
Read recommendations:
Wholesale Price Biodegradable Aluminum 3 Three Side Seal High Temperature Microwavable Food Retort S
properties of flexible packaging films distributors
Flexible packaging film roll manufacturers
How to Improve the Market Competitiveness of Food Packaging Bag Manufacturers
Popular recommendation
Custom Size Printed Coffee Milk Juice Wine Bib Bag-In-Box With Valve Gift Cardboard Box
Custom Special Shaped Super Pouch Aluminum Foil 1.5L 3L 5L Stand Up Drink Juice Liquid Pouch With Va
Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa
kraft paper spout pouch company
pouch with handle sales
bag in box Factory
pouch flexible packaging price
spout pouch bag Processing
Flexible packaging film roll Factory
Spout pouch sales
Beverage Pouch: The Ultimate Guide
Juice Pouch Bags: The Ultimate Guide
baby pacifier newborn wholesale.What are the good properties of food packaging bags
Classification and material of packaging bags
The role of the coffee bag
Material of liquid bag
Differences in the Materials of Composite Packaging Bags
There will be several "small holes" on the top of the coffee pouch bags, so what is the my
Top-line packaging exhibition
The difference between aluminum foil bag and composite bag and vacuum packaging bag
Various problems about aluminum -plastic bags, such as heating?
Independent Bag Industry Market.aluminum foil bags for cooking
composite packaging bag
OPP plastic bag wants to be green
Aluminum foil bag basic knowledge
The production process of liquid packaging bags.spout pouches
The main function of the bag in the box.aseptic bag in box
The structure of Spout POUCHES
Characteristics of various food packaging materials
Advocate the benefits of using environment-friendly plastic bags