Tel: +86 188 2689 9458
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:
125g 250g 500g 1kg Aluminum Foil Flat Bottom Coffee Bean Bags With Valve
pouch flexible packaging Vendor
How to customize the packaging bag
What benefits do liquid packaging bags bring to the purified water industry.bag in box maker
Popular recommendation
PET food bag
Custom Laminated Printing Juice Bag Liquid Packaging Stand Up Plastic Water Spout Pouch
China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag
flexible packaging manufacturer
mulberry mini pouch with handle custom
packaging spout pouch Production
spout pouch machine Production
aluminium spout pouch custom
juice bag in box manufacturer
pouch with handle Processing
flexible packaging film structure wholesale.Real time strategy for packaging bags
Shaped Pouches: The Ultimate Guide
What is a composite bag
How to choose pet food packaging bags?
How to use food packaging bags specifically
Use more paper food packaging bags to take care of the environment.aluminum foil bag large manufactu
What is a coffee bag
Application of Aluminum Foil Ton Bag.aluminum foil bag price
Bag material shelf life analysis of food packaging bags
Tell you how to distinguish the material of the vacuum packaging bag
What is the difference between rice vacuum bags and rice woven bags
What kind of film is automatic packaging roll film
Do you need to pay attention to the shelf life of food packaging bags?custom snack food bags
Market prospect and advantages of heat shrinkable bags
Causes and solutions for the difficulty of aluminum foil bags.aluminum foil bags for grilling
What are the types of dog food bags?bag for food packaging.food packaging pouch suppliers
What questions do customers often ask about vacuum bags
OPP plastic bag wants to be green
Classification of bags
Why is the cooking bag called "soft can"? What are its advantages and characteristics
Subscribe to Top-line emails and
stay updated on our news.
+86 188 2689 9458Email: info@toplinepackaging.com
Add: Room 204-205 ,Buliding 2 ,No 7 xinji Road,Nancheng street ,Dongguan City ,Guangdong province,China
Download Catalogs
Wechat
Whatsapp
