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The functions of the back glue (spine glue) and side glue (cover and book core side adhesive) on the book binding line are different: the back glue needs to penetrate deeply and have high adhesive strength; The side glue needs to cure quickly and the glue line should be thin and narrow. Two different needs correspond to differenthot melt adhesive pelletsModel and operating temperature.
Sunlife hot melt adhesive particles have the best bonding performance for the back and side adhesive types within the recommended temperature range, please do not deviate arbitrarily.
Q: Can we use the same glue for two pots?
A: Sure, but not recommended. Universal hot melt adhesive particles serve as both backing and side adhesives, but their performance is not as good as specialized types. It is recommended to use separate pots for mass production.
Q: What happens if the temperature of the side adhesive is set too high?
A: Overheating of the side glue can cause excessive fluidity of the glue, widening of the glue line, and overflow of glue onto the cover. The temperature of the side adhesive generally does not exceed 170 ° C.
Directly speaking, the method is to seal the box in winter without bursting, relying on three things: “low-temperature glue+temperature control+coating amount” In winter, when express cardboard boxes burst and open, it is mostly not due to poor quality of the glue, but rather the fact that the sealing glue that works well at room temperature […]
Hot melt adhesive particles are a new type of environmentally friendly material, featuring fast curing speed, simple process, and no risk of flammability or explosion. Hot melt adhesive particles do not contain organic solvents. During the production, manufacturing and application process, there is no discharge of three wastes, and it does not cause environmental pollution. […]
The procurement risks of industrial chemical raw materials such as chromium powder often occur after placing an order: unclear packaging labeling, incomplete delivery upon arrival, and missing storage and requisition records all increase the difficulty of subsequent traceability. Starting from the procurement handover chain, this article explains how to establish basic control points. Core KeywordsChromium […]
This article is from the wechat official account of “Bonding” The latest advancements in bonding theories both at home and abroad are mainly reflected in the deepening of traditional theories, the exploration of bionic mechanisms, breakthroughs in dynamic reversible bonding technologies, and innovations in material modification. The following summarizes the key progress in recent years […]
