Adhesive Classification

There are many types of adhesives, which can usually be classified as follows:
Material source points
①Natural adhesive
It is derived from substances found in nature. Including starch, protein, dextrin, animal glue, shellac, hide glue, rosin and other biological adhesives; also includes mineral adhesives such as asphalt.
②Synthetic adhesive
Mainly refers to artificially synthesized substances, including inorganic adhesives such as water glass, and organic adhesives such as synthetic resin and synthetic rubber.
Use characteristics
①Water-soluble adhesive
Adhesives that use water as solvent mainly include starch, dextrin, polyvinyl alcohol, carboxymethyl cellulose, etc.
②Hot melt adhesive
It is a solid adhesive that is melted by heating. General thermoplastic resins can be used, such as polyurethane, polystyrene, polyacrylate, ethylene-vinyl acetate copolymer, etc.
③Solvent-based adhesive
An adhesive that is insoluble in water but soluble in a certain solvent. Such as shellac, butyl rubber, etc.
④Emulsion type adhesive
Most of them are suspended in water, such as vinyl acetate resin, acrylic resin, chlorinated rubber, etc.
⑤Solvent-free liquid adhesive
It is in the form of viscous liquid at room temperature, such as epoxy resin, etc.
The adhesive is the medium between the label material and the bonding substrate and plays a connecting role. According to its characteristics, it can be divided into two types: permanent and removable. It comes in a variety of formulas, suitable for different surface materials and different occasions. Adhesive is the most important component in self-adhesive material technology and the key to label application technology.