新闻中心
EVA hot melt adhesive is different from regular cold melt adhesive. According to its characteristics, the following points must be mastered and noted during use:
When using EVA hot melt adhesive, do not heat it directly with an open flame. Be sure to heat with isolation oil (the boiling point of water should reach 100 ℃) or use a sealed electric heating plate. Before using solid EVA hot melt adhesive, it must be preheated with a preheating device and then released into the working glue box of the adhesive. The preheating time is generally around 2 hours. When using glue, do not directly mix solid glue blocks (i.e. glue that has not been preheated) into the glue box to prevent Poor fluidity of glue or applying partially melted glue on the back of the book, resulting in uneven application of glue. The amount of glue in the preheated glue pot should be controlled properly. If too much is used, the glue will melt one by one, causing deterioration and aging, reducing viscosity, and affecting adhesion. The entire bonding process must be completed within the opening time of the hot melt adhesive. If the machine is stopped due to a malfunction, the books in the bookshelf must be removed in a timely manner, and the book core must not stay above the glue wheel. When repairing wireless adhesive binding equipment for a long time, the pre coating glue and working glue pot should be turned off to prevent glue aging. The temperature of the molten colloid should be strictly controlled within the range of use. EVA eco-friendly hot melt adhesive is a thermoplastic material composed of EVA, tackifiers such as petroleum and rosin, as well as some bonding AIDS, and is formed in solid cylindrical rods or granular form. It can be melted and applied by using a hot melt gun, sprayer or other glue binding equipment, etc. Because it […]
First, give the conclusion The pages of three-dimensional books and flipped books need to be repeatedly folded, and ordinary books and magazines have hard and brittle rubber particles that break when folded. To stick firmly, one must avoid the four misconceptions of “using ordinary glue, applying too thick, pressing too hard, and not trying to […]
What exactly is’ drawing ‘on the machine At the moment of glue coating or breaking, a thin wire is pulled out from the end of the sealing or gluing line, which is called “drawing” in the industry.Hot melt adhesive granulesAfter melting, it is a high viscosity hot fluid, and once the temperature, flow rate, and […]
How to deal with hot melt adhesive particles burning and smoking? First, give the order of disposal:Immediately lower the temperature of the glue pot by 20 ℃ → exhaust and ventilate → stop adding new glue → remove the coking glue from the pot → check if the temperature control is malfunctioning again.The essence of […]
