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:
Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa
How much do you know about PE bag blowing film?properties of flexible packaging films distributors
Popular recommendation
Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa
Wholesale Price Biodegradable Aluminum 3 Three Side Seal High Temperature Microwavable Food Retort S
125g 250g 500g 1kg Aluminum Foil Flat Bottom Coffee Bean Bags With Valve
new super pouch distributors
spout pouch packaging Manufacturing
refillable spout pouches price
smart spout pouch Processing
bag in box packaging manufacturer
packaging spout pouch company
Snack food bag bulk
mini Snack food bag Solution.How to Choose a Qualified Food Packaging Bag
What are the classifications of biodegradable plastic bags?
ordering flexible packaging film roll sales.The shortcomings of environmental bags
What is the sealing length of the bag in box?
What are the advantages of liquid chemical packaging bags in transportation?
aluminium spout pouch Factory.Lightweight heat preservation, Spout pouch accompanying
How to test the packaging bag.
Requirements for fertilizer packaging bags.
How much do you know about packaging bags
Causes and solutions for the difficulty of aluminum foil bags.aluminum foil bag large Production
Introduce the usage of Vacuum packing bag
Target audience for packaging bags.biodegradable spout pouches supplier
Soluble environmentally friendly plastic packaging bag.packaging kraft paper pouch bag
The characteristics and performance of Spout POUCHES
The Development Trend of Bags in Boxes is Towards Recycling, Green and Environmental Protection.bag
Composite packaging bag
Two composite methods of vacuum packaging bags
How much do you know about the characteristics and use of aluminum foil packaging bags?gusset alumin
Traditional testing methods of package sealing
Specification for Halal Certification
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
