Tel: +86 188 2689 9458
source:Industry News release time:2022-09-16 Hits:
The zipper bag is a packaging form of plastic soft plastic packaging, which is convenient for taking food and can be used repeatedly to ensure the freshness of food. From the perspective of food packaging manufacturers, the production process requirements of bags without zippers are gradually increasing. Next, our company will take you to analyze the folds that often occur in zipper bags.
There are two common problems in zipper packaging bags: one is the local delamination or surface folds at both ends of the zipper; the other is the surface folds at the stitching of the zipper and the bag body.
The wrinkles at both ends of the zipper packaging bag are sometimes closely related to the choice of zipper. When purchasing zippers, we must pay attention that the melting point and shrinkage rate of the zipper should be lower than or equal to the melting point and shrinkage rate of the heat sealing layer of the composite film, so as to avoid the melting point and shrinkage rate of the composite film. Wrinkling that occurs when there is a severe mismatch with shrinkage.
The cooling condition is also one of the important factors in the bag-making process. If the deformed zipper can be sufficiently cooled before the bag-making process is completed, the composite film that has completed the bag-making process will continue to shrink under storage conditions. possibility will be greatly reduced.
If the heat-sealing layer and zipper in the composite film bag that has been processed into the bag are still in a molten state or viscoelastic state, then, under storage conditions, the heat-sealing layer and the zipper must undergo some degree of thermal shrinkage. Then a corresponding degree of surface wrinkling occurs. Therefore, the surface temperature of the bag making machine cooling has become one of the important factors affecting the appearance quality of the composite packaging bag.
Read recommendations:
aluminium spout pouch manufacturer
Popular recommendation
PET food bag
BIB Bag-in-box dispenser with butterfly valve vitop for drinking water wine juice
Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa
refillable spout pouches supplier
spout pouch machine price
spout pouch packaging bags manufacturer
bag in box packaging Processing
smart spout pouch maker
digital flexible packaging price
bag in box supplier
Super Pouches: Revolutionizing Flexible Packaging for Top-Line Packaging Solutions
In what areas is the bag-in-box industry used?
Compostable and Biodegradable Stand up Pouches -The Complete Guide
Classification and material of packaging bags
How to determine whether the food packaging bag is regular?
Perforjuice bag in box.mance and requirements for chemical liquid packaging bags
What are the classifications of biodegradable plastic bags?
The production process of sterile bags
Customized milk tea packaging bag manufacturers
juice bag in box Factory.Classification of liquid packaging bags
Tell you how to perform sterilization and sealing in high-temperature cooking vacuum bags.food vacuu
What are the conditions for food packaging?stand up pouches for food package
Folding packaging bag
The use of active box in bag packaging technology will become a trend.gusset aluminum foil bag
Where are OPP plastic bags used?
Six Standards that Vacuum Packaging Bag Suppliers Should Adhere to.Vacuum zipper bag company
Can I use a vacuum bag to keep food safe?
Learn about the main ingredients of plastic bags.pet food packaging bag
Common composite food bags in our daily lives
How to choose a good Plastic Bugble Mailer Bags?biodegradable clear mailing bags Vendor