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The common quality problems of wireless binding hot melt adhesive mainly include page dropping, uneven back, broken book core, bubbles, and perforation at both ends of the book. They often appear on single or multiple banks, mainly due to the following reasons:
1、 Analysis of Page Dropping Reasons
2、 Analysis of the reasons for incomplete books
Direct answer: The consumption of adhesive particles is relatively high, and 90% of the problem lies in four areas – excessive setting of adhesive amount, waste caused by improper temperature, equipment leakage, and mismatched selection of adhesive particles. After item by item investigation, most factories can reduce unit adhesive consumption by 15% -30% without sacrificing […]
Domestic in 2026Hot melt adhesive pelletsThe common trading range is roughly11000 to 26000 yuan per tonThe general sealed box type is lower end, the book and magazine adhesive type is in the middle, and the PUR or food contact level is significantly higher. The price difference is not arbitrarily determined, mainly determined by the proportion […]
Direct answer: Generally, high-strength spine glue is not used for bonding the inner pages of coil books. Instead, low-temperature or medium temperature EVA with shorter opening time (2-4 seconds), high initial adhesion, and good flexibility should be selected Hot melt adhesive pelletsThe softening point is between 80-90 ℃. Because the adhesive of the coil book […]
Compared with traditional EVA hot melt adhesive and other adhesive chemicals, EVA hot melt adhesive has many advantages. Let’s briefly understand some of the advantages of EVA hot melt adhesive. We like hot melt adhesive for a reason. What are the advantages of EVA hot melt adhesive 1. Excellent heat resistance: It can usually replace […]
