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Many graphic and text store owners are afraid of changinghot melt adhesive pellets——Afraid of blocking rubber hoses, afraid of temperature switching problems, and afraid of wasting glue. In fact, as long as you follow the steps, it can be done in 15 minutes without stopping the machine for too long. The following is the standard glue changing process using Sunlife hot melt adhesive granules as an example.
Q: Can different brands of granules be mixed?
A: Not recommended. Mixing hot melt adhesive particles with different formulas may result in compatibility issues such as delamination and decreased adhesion. If a transition is necessary, rinse the hose thoroughly using steps 3-4.
Q: Does the first bound book always not stick firmly after changing the glue?
A: This is a normal phenomenon during the transition period of mixing old and new rubber residues in the hose. Squeezing 50-100g of mixed adhesive waste before starting formal binding can solve the problem.
Q: How often is it appropriate to change the glue?
A: It is recommended to clean the glue pot once a week and replace it with new glue every 1-2 weeks. If the glue is not replaced for a long time, repeated heating of the glue solution will cause severe aging, yellowing, and brittleness.
Hot melt adhesive granulesCan PET film be adhered? Yes, but it depends on the particle type and usage method. PET (polyethylene terephthalate) film has low surface energy and weak polarity, and ordinary EVA hot melt adhesive particles are prone to “false adhesion” and easy to peel off when directly adhered. To firmly adhere PET, a […]
Carton sealant is an essential item in our daily lives. There are many types of cardboard box sealing adhesive. Some people want to choose sealant with good adhesion, so they always choose very thick sealant, but in reality, there is no thicker or stickier sealant. Sealing glue is only thicker and more viscous within the […]
Hot melt adhesive pelletsThe material is essentiallyComposite solid adhesive with thermoplastic resin as the skeletonThe main body is a base resin (EVA, APAO or PUR prepolymer), combined with thickening resin, wax and antioxidant. Different base resins determine whether it can be used to glue books and magazines, and whether it can be used to seal […]
Smell is not a small matter Book and magazine factories, graphic and text stores, food packaging workshops,Hot melt adhesive granulesOdor directly affects worker comfort and customer perception. But the typical misconception is that ‘strong odor equals firm adhesion’, and there is no necessary relationship between the two. 5 common misconceptions Misconception 1: The stronger the […]
