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:
3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve
eco friendly spout pouches Vendor
How to prevent Bubble Mailer aging
Since you choose the nylon vacuum packaging bag, you should know its advantages.vacuum sealer bags f
Popular recommendation
Bag-In-Box
Laminated Aluminum Foil Zip Lock Bag Stand Up Pouch /Matt White Foil Pouch /Zip Lock Coffee Bag
Flexible packaging film roll
bag in box packaging supplier
eco friendly spout pouches company
smart spout pouch company
biodegradable spout pouches manufacture
recyclable spout pouches manufacture
bag in box wine Processing
bag in box packaging sales
Main functions of vacuum packaging bag
Creative design of coffee bag
Types of coffee bag
Features and uses of textured vacuum bag
Anti -static packaging bag.aluminum foil bags for cooking
The characteristics and functions of multi -layer composite independent bags
What does the three-side seal of the bag mean?
The function of Bag-in-Box
How to choose aluminum foil vacuum packaging and transparent vacuum packaging can make customers mor
Introduction to Barcodes for Packaging Bags
What is the material of PE bag and what type of packaging bag can be made
Rice brick vacuum bags have improved the quality of rice.vacuum zipper bags company
Production process of sterile bags
digital printing flexible packaging Factory.What is UV printing for colored packaging bags
Why not recommend a large number of dog food or casual, simple Dog Food Bag?petco free dog food bag
Introduction to raw materials of anti-static bags
What are the reasons for the broken bag of the eight-side sealing food packaging bag?
Tell you five specifications for inspecting plastic packaging bags.coffee packaging plastic bag
The magic of packaging bags.
Function of plastic food packaging bags