Hot melt adhesive conforms to the needs of the times and is a direction for the development of adhesives in today's world. Hot melt adhesive is a kind of plastic adhesive, its physical state changes with temperature change within a certain temperature range, and the chemical properties remain unchanged, its non-toxic and odorless, is an environmentally friendly chemical product. Because its product itself is solid, it is convenient for packaging, transportation, storage, solvent-free, pollution-free and non-toxic; As well as the advantages of simple production process, high added value, high bonding strength and fast speed, it is favored.
Key features of hot melt adhesives:
1) Fast bonding: usually only a few seconds to tens of seconds, shorten the process, suitable for assembly line operation, high labor productivity.
2) Wide range of applications: high adhesion to many materials (such as fabric, leather, wood, plastic, metal, etc.).
3) 100% solid, solvent-free, non-toxic, non-polluting, in line with environmental protection requirements, and easy to transport and store.
4) Significant social and economic benefits.
The continuous expansion of the application range of hot melt adhesives mainly includes the following aspects:
1) Packaging: It is an application that accounts for a very large proportion of the hot melt adhesive consumer market, and is currently used in cartons, corrugated boxes, packaging bags, etc.;
2) For fiber fabrics: hot melt adhesive also accounts for a large proportion of the consumer market, used in clothing, shoes, etc.; Sanitary products: mainly used for sanitary napkins, diapers, mattresses, etc.
3) Book binding: used for wireless binding of books and periodicals;
4) Furniture: used for wood, furniture lamination wood edge, PVC, etc.;
5) For shoe making: leather shoes shaped, toe toe toe upper lining, folded edge, insoles, shoe material composite, etc.;
6) Automotive: automotive lights, windshield automotive filters, automotive roofs, automotive interior parts, etc.;
7) Electronics, aerospace, military, solar cell packaging materials, electronic products, etc.
With the rapid development of the hot melt adhesive industry, the application range of hot melt adhesive is more and more extensive, and further attention is paid to the development of hot melt adhesive coating methods, coating equipment, and coating technology, which is the key to the successful application of hot melt adhesive and an important condition for the continued development of hot melt adhesive. At the same time, with the increasingly strict environmental protection law and the continuous enhancement of people's awareness of environmental protection, environmentally friendly adhesives have become the mainstream of the development of synthetic adhesives in China
