This article shares the practical application of hot melt adhesive B650-4 in the production of paper shopping bags, focusing on the automatic high-speed production scenario. It details the product's applicable objects, usage methods, bonding effects, and test performance, providing a reliable bonding solution for the automatic production of paper handle bags.
I. Basic Application Information
• Applied Product: Paper shopping bags
• Adapted Materials: Kraft paper bag body, paper handle
• Gluing Method: Knife coating (professional and suitable for automatic high-speed production line operation)
II. Bonding Effect
The bonding is firm and stable, with smooth glue application without stringing. There is no degumming or handle detachment, which is fully adapted to the operation requirements of automatic high-speed production lines, ensuring continuous and efficient production without interruptions caused by glue problems.
III. Test Performance
The product has passed the standard room temperature test, and the specific test results are as follows:
• Static Load Test: Under a load of 5kg for 4 hours, there is no cracking at the bonding area, and the bonding state remains stable.
• Dynamic Test: After 9,000 vertical reciprocating cycles, the material failure at the paper handle is in good condition, and the overall test is passed, which fully verifies the bonding strength and fatigue resistance of the product.
IV. Performance Conclusion
Hot melt adhesive B650-4 is specially designed for the automatic production line of paper shopping bags. It is suitable for bonding kraft paper bag bodies and paper handles with the knife coating method. It has the advantages of smooth gluing, no stringing, firm bonding, and no detachment. It has passed strict static and dynamic tests, which can effectively ensure the bonding reliability and service life of paper shopping bags, and is an ideal choice for the automatic high-speed production of paper handle bags.
