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Hot melt adhesive is the name of any polymer-based glue applied in a molten state. The application of adhesives is usually carried out through industrial glue guns, which work by triggering actions or finger pressure. Due to its versatility, hot melt adhesives are used in various environments, including packaging, binding, carton manufacturing, graphic arts, tapes and labels, product assembly, and the automotive industry.
Hot melt adhesive has become so popular that it has surpassed solvent-based adhesives. Solvent-based adhesives are mixtures of various components dissolved in solvents. When the solvent evaporates, the material will stick together. Polymer-based hot melt adhesives have solved many problems of solvent-based adhesives.
Compared with solvent-based adhesives, hot melt adhesives are faster, less costly, have stronger adhesion, and produce less volatile organic compounds.
Due to its chemical properties, hot melt adhesives can take various forms. This includes glue sticks, pellets, bags, cakes, drums, bricks, slats and pillows. Hot melt adhesives can also be applied in various ways, including through nozzles, extrusion, meltblown, spiral spraying, screen printing and slot die coating. Hot melt adhesive dispensing equipment can take the form of melt adhesive containers, vacuum conveyors, roller or bucket unloaders and pre-melt machines.
Universal hot melt adhesive granulesCan be reluctantly shared in scenarios with small batch and low strength requirements through “gluing+sealing”However, when it comes to large-scale production, it is recommended to separate materials: the adhesive packaging of books and periodicals should have penetration and stiffness, and the sealing should have initial adhesion and tensile strength; Carrying a […]
What do we need to inspect when replacing the adhesive particles for book and magazine packaging and making samples? Directly provide the list: When changing the glue or selecting a new supplier, a sample must be made and checked before formal productionAdhesive strength, page flipping flatness, appearance of book back, temperature resistance, opening time, odor, […]
Direct conclusion Small batch, multiple varieties, frequent order changes (such as graphic printing, sample box sampling), choosehot melt adhesive powderMore flexible; Continuous large-scale production, equipment installation (book and magazine linkage line, sealing spray glue machine), orHot melt adhesive granulesMore stable and cost-effective. Both are of the same kindhot melt adhesiveThe core difference lies in how […]
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 […]
