Tel: +86 188 2689 9458
source:other news release time:2023-06-14 Hits:
1. Wrong selection of Adhesive or poor heat resistance of adhesive.
2. The curing agent ratio is out of balance. Possible reasons for the imbalance in the ratio of curing agents include: a. human error in the ratio; b. The ambient temperature is too high; C. The solvent contains water, alcohol, or activity - OH genes; d. The solvent in the ink was not fully dried.
3. Insufficient curing or too low temperature.
4. Insufficient drying. Because the solvent is not completely volatilized during printing or compounding, there are many residual solvents. Although these solvents may not contain active chlorine and will not affect the cross-linking reaction of Adhesive, the solvent will swell the adhesive layer and may vaporize at high temperature, so although it has little impact on the composite strength at normal temperature, it may cause heat seal separation layer.
5. The impact of printing ink. First, the inactive solvent in the ink, the resin or additives in the ink consume part of the curing agent, which causes the imbalance between the main agent of the Adhesive and the curing agent, resulting in the heat seal separation layer. When using heat-resistant polyester amine inks or chlorinated polypropylene inks for high-temperature heat sealing applications, a heat sealing separation layer may occur.
Read recommendations:
Laminated Aluminum Foil Zip Lock Bag Stand Up Pouch /Matt White Foil Pouch /Zip Lock Coffee Bag
How to correctly choose plastic bags for food? Teach you a few tricks
What is easy to tear film? Which products are suitable for easy tearing film?
Popular recommendation
Custom printed food grade ziplock snack custom plastic pouch packaging food packing bag
Pouch with handle
Hot Sale BPA Free Plastic Drink Juice Fruit Liquid Packaging Stand Up Bag Spout Pouch
spout pouch black wholesale
Aluminum foil bag Factory
biodegradable spout pouches sales
spout pouch packaging bags supplier
spout pouch bags Manufacturing
flexible packaging houston maker
bag in box packaging wholesaler
Customized milk tea packaging bag manufacturers
Will liquor vacuum bags affect the wine?
Spout pouch - a new fashion and portable option.aluminium spout pouch sales
Composition of liquid bags
Introduce the development trend of pet food packaging.Spout pouch flexibility Factory
Why are water packaging bags not suitable for long-term storage?liquid spout bag
The choice of vacuum food packaging bags
printed snack food bags price!Introduction to the Function of Food Packaging Bags
Key Players in Bag-in-Box Industry
Anti -static packaging bag.aluminum foil bags for cooking
Precautions for using vacuum bags by food packaging manufacturers.vacuum sealer bags for food
Qualified composite bags should possess these qualities.aluminum laminated foil bag Factory
Production environment for sterile bags
Food packaging: the most moving elements
And there are already four types of uses for high-temperature cooking bags alone
Disinfection work should be done well in the production of sterile bags
The application of bag in box in daily life.aseptic bag in box
Aluminum foil vacuum packaging and transparent vacuum packaging.pint zipper vacuum bag Processing
Why nylon vacuum packaging bags are favored by the food packaging industry
How to design a packaging bag according to the product?flexible packaging houston Vendor