The main materials of epoxy resin labels include the face stock, adhesive, backing paper, and epoxy resin layer. These materials collectively determine the label's texture, durability, and visual appeal.
The printing substrate for labels commonly uses materials such as polyester (PET), polypropylene (PP), and coated paper. PET substrates are widely used for high-end product labels due to their high gloss, temperature resistance, and dimensional stability.
Adhesive: Located on the back of the label, providing adhesion. Mostly acrylic or rubber-based pressure-sensitive adhesives, possessing good initial tack and holding power, firmly adhering to various surfaces such as metal, plastic, and glass.
Backing Paper: Typically silicone-coated release paper (such as glassine paper), protecting the adhesive layer from contamination or pre-adhesion before use, facilitating easy peeling during labeling and ensuring efficient operation.
Epoxy Resin Layer: The most distinctive part, a high-gloss, 3D three-dimensional coating layer formed by dripping transparent epoxy resin (such as bisphenol A epoxy resin). After curing, this resin is hard, wear-resistant, and possesses excellent waterproof, scratch-resistant, and chemical corrosion-resistant properties.