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The adhesive layer of books and magazines is usually covered by the spine cover, and transparency is not important in most scenes. However, in some special binding designs, the adhesive layer may be exposed and visible, such as bare spine binding, transparent covers, display grade samples, etc. At this time, the color and transparency of the adhesive layer directly affect the aesthetics of the finished product.
Transparent adhesive particles are made of high-purity EVA and light colored tackifying resin, without titanium dioxide fillers, with a cost increase of about 10-15%. The adhesive performance is consistent with the white adhesive particles of the same formula, with the only difference being the appearance. Sunlifehot melt adhesiveThe transparent series is suitable for both bare spine and transparent cover binding. Guangzhou Sunlife Trading provides two types of samples for comparison: transparent and white.
What causes white spots and bubbles in the adhesive layer? Directly provide the order of investigation:Moisture absorption of adhesive particles → high temperature of adhesive glue → stirring and rolling into air → surface moisture of substrate → suction of adhesive pumpAccording to this order, over 90% of the white spot bubble problems can be […]
Conclusion first: Exported books and periodicals need to be transported across the ocean, through high-temperature containers and temperature differences between high and low temperatures. Ordinary rubber particles are prone to sticking or becoming brittle during transportation, while weather resistant hot melt rubber particles have a higher softening point and a more balanced resistance to high […]
One sentence conclusion Choose EVA for paper-based adhesives such as book binding, cardboard box sealing, and quick printing of graphics and text Hot melt adhesive granulesThat’s enough; Only when it is necessary to withstand high temperatures above 80 ℃ for a long time or to bond nylon/metal/engineering plastics, should PA polyamide hot melt adhesive particles […]
The reason for the occurrence of wire drawing, uneven spine, or page dropping in the wireless adhesive packaging of graphic and text fast printing stores may not be solely due to the adhesive material itself. The paper coating, adhesive amount, melt temperature, roller state, and cooling time all jointly affect the binding result. This article […]
