Hot-melt adhesives, as the name implies, is a type of hot-melt adhesive that melts when heated to a variety of materials and has the following characteristics compared to other adhesives: 100% solids, solvent-free and water composition; has thermoplasticity, that is, can be repeatedly heated to melt and cooling solidification, the process is reversible, the chemical and physical properties of hot-melt adhesives will not change in the process; hot melt adhesive must be heated to melt first then can be coated; Hot melt adhesive has been widely used in food packaging, bookbinding, disposable hygienic products, furniture industry, label industry and other fields since it came out, because of its strong bonding strength and fast curing speed.