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The aging of hot melt adhesive is quite common in its application. This phenomenon is mainly caused by the glue heating time being too long or the heating temperature being too high. How to determine if hot melt adhesive has aged?
Aging hot melt adhesive may exhibit the following phenomena:
The aging phenomenon that occurs is generally caused by improper use of hot melt adhesive. It can also be stored for a long time before use. The surface of hot melt adhesive begins to oxidize, attaching dust and microorganisms. As long as the storage space is dry, tidy, and used properly, hot melt adhesive can be stored better, and there is no need to worry about its good storage performance.
How to use pearl cotton hot melt adhesive? High pressure polyethylene polyurethane foam is a kind of non chemical closed cell structure, also called EPE pearl cotton, which is a new environmental protection packaging product. It consists of thousands of individual bubbles made of high pressure polyethylene grease through physical polyurethane foam. The conventional polyurethane […]
Misconception 1: Increasing the amount of glue applied can make it stick Many operators find that the BOPP film surface cannot stick, and their first reaction is to add glue. In fact, increasing the adhesive amount from 40g/m ² to 80g/m ² does not increase the bonding strength by less than 20%, but instead causes […]
The performance and effect of the hot melt adhesive used for producing hand-held paper bags of different materials vary depending on the model used. Choose the right one< strong> Suitable for hand-held paper bags used for expensive gift packaging. Generally, white cardboard is used as a material for making hand-held paper bags. For white cardboard […]
The correct sequence for carbonization of residual glue in the glue can is:First, cool down to the softening range where the glue can still flow (about 120-140); Drain the remaining adhesive (℃), then use specialized cleaning adhesive or high flash point cleaning agent to circulate and soften the carbon residue, and finally use a copper […]
