Water-based coating glue is made of acrylic or polyurethane resin emulsified by special emulsifying equipment with water as the solvent. Its biggest advantage is: variety, environmental protection, low price. Now there are a lot of coatings are water soluble glue, such as general water soluble PA, water soluble PU and leather film glue, oil sense wax, scraping paste and other functional paste. Water solubility, with its functionality, environmental protection, and low price, will be the future direction of coating. Disadvantages are poor film forming, poor washing fastness, PU can not stick hot air glue.

Oily coating glue is oily solvent (toluene, DMF, butanone, etc.) as solvent, acrylic acid or polyurethane dissolved. Its advantages are good film forming, good fastness, PU can stick hot air adhesive, is currently widely used coating adhesive. Defect is due to the use of the oily solvent, so environmental protection lacking a bit, especially now that oil prices, oil solvent prices soaring all the way, most of the coating glue due to the cost is too high, so use more bad of the oily solvent, leading to environmental protection is not up to standard, in addition with the national environmental standards to further improve, so for environmental requirements of the coating adhesive is higher and higher.

Hot melt adhesive is a kind of plastic adhesive, in a certain temperature range with the change of its physical state with temperature changes, and chemical characteristics unchanged, non-toxic tasteless, is an environmental protection chemical products. Hot melt adhesive is the use of hot melt glue machine through the heat to melt the hot melt glue, the glue after melting into a liquid, through the hot melt glue machine hot melt hose and hot melt gun, to be glued to the surface, hot melt glue cooling is completed after bonding. Of course, to give play to the advantages of hot melt adhesive in bonding, we must use high quality hot melt adhesive and the corresponding quality and reliable hot melt adhesive machine to match.