Introduction and use of pressure sensitive adhesive.

1. Classification of pressure sensitive adhesives

 

According to the composition, pressure-sensitive adhesives can be classified into rubber type and resin type. Rubber types can be further divided into natural rubber and synthetic rubber; resin types mainly include acrylic, silicone and polyurethane.

 

According to its performance and dispersion medium, it can be divided into water-soluble pressure-sensitive adhesive, solvent-based pressure-sensitive adhesive, latex-type pressure-sensitive adhesive, hot-melt pressure-sensitive adhesive and calendering pressure-sensitive adhesive. Among them, water-soluble pressure-sensitive adhesives, hot-melt pressure-sensitive adhesives and solvent-based pressure-sensitive adhesives are the mainstream products of pressure-sensitive adhesives on the market, and hot-melt pressure-sensitive adhesives are the latest pressure-sensitive adhesives.

 

 

2. Use of pressure sensitive adhesive

 

Pressure-sensitive adhesives are primarily solvent-based or latex-based adhesives of acrylic and rubber systems. Due to the need for high-speed operation, reasonable coating and solvent removal, it is very troublesome to apply in the production process. Therefore, a hot-melt pressure-sensitive adhesive was developed, which integrates hot-melt adhesive and pressure-sensitive adhesive, solvent-free, pollution-free, and easy to use. . Pressure-sensitive adhesives are applied in the molten state, and after cooling and solidification, light pressure can play a role of adhesion.

 

It is widely used in diapers, women's products, double-sided tapes, labels, packaging, healthcare, bookbinding, surface protection films, wood processing, wallpaper and shoemaking. The main component of the hot melt pressure sensitive adhesive is a styrene thermoplastic elastomer. The hot-melt pressure-sensitive adhesive has the advantages of no solvent, no air pollution and high productivity.