Self-adhesive, also called self-adhesive label material, is a composite material with paper, film or special material as the fabric, adhesive coated on the back, and silicon-coated protective paper as the base paper.

structure

1. Face material: It is the carrier of the self-adhesive label content, and the back of the face paper is coated with adhesive. There are many materials that can be used for surface materials, generally divided into coated paper, transparent polyvinyl chloride (PVC), electrostatic polyvinyl chloride (PVC), polyester (PET), laser paper, temperature-resistant paper, polypropylene (PP), Polycarbonate (PC), kraft paper, fluorescent paper, gold-plated paper, silver-plated paper, synthetic paper, aluminum foil paper, fragile (anti-counterfeiting) paper, textured paper, cloth label (Tavic/nylon) paper, pearl paper, Sandwich coated paper, thermal paper.
2. Film material: transparent polyester (PET), translucent polyester (PET), transparent oriented stretched polypropylene (OPP), translucent oriented stretched polypropylene (OPP), transparent polyvinyl chloride (PVC), bright White polyvinyl chloride (PVC), matt white polyvinyl chloride (PVC), synthetic paper, shiny gold (silver) polyester, matt gold (silver) polyester.
3. Adhesives: general-purpose super-viscosity, general-purpose strong-viscosity, refrigerated food strong-viscosity, general-purpose re-opening type, and fiber-re-opening type. On the one hand, it ensures the proper adhesion between the bottom paper and the face paper, and on the other hand, it ensures that the face paper is peeled off, and it can have strong adhesion to the paste.
4. Bottom paper material: Release paper is commonly known as "bottom paper". The surface is non-sticky with low surface energy. The bottom paper has an isolation effect on the adhesive, so it is used as an attachment to the face paper to ensure that the face paper can be easily removed from the surface. Peel off the bottom paper. Commonly used are white, blue, yellow glassine or onion, kraft paper, polyester (PET), coated paper, and polyethylene (PE).

material
1: Use surface materials: molded wood free paper, art paper (shading/mirror), transparent PVC, electrostatic PVC, polyester PET, laser paper, temperature-resistant paper, PP, PC, kraft paper, fluorescent paper, thermal paper , Copper silk dragon, silver silk dragon, gold-plated paper, silver-plated paper, synthetic paper (CPC/PP/HYL/super tough paper/pearl paper), aluminum foil paper, fragile (anti-counterfeiting) paper, textured paper, cloth label ( Taiwek/nylon), pearl dragon, sandwich copperplate, thermal paper.
2: Use film: transparent PET, translucent PET, transparent OPP, translucent OPP, transparent PVC, glossy white PVC, matte white PVC, synthetic paper, glossy gold (silver) polyester, matte gold (silver) polyester.
3: Use glue type: general super sticky type, general strong sticky type, refrigerated food strong sticky type, general re-opening type, fiber re-opening type.
4: Use bottom paper: white, blue, yellow glassine paper (or garlic paper onion) kraft paper polyester PET coated paper polyethylene polyethylene.

classification
Self-adhesive labels are roughly divided into two types: one is paper-based self-adhesive labels, and the other is film-based self-adhesive labels.
1. Paper-based self-adhesive labels are mainly used for liquid washing products and popular personal care products; film materials are mainly used for medium and high-end daily chemical products. At present, the popular personal care products and household liquid washing products on the market occupy a large proportion, so the corresponding paper materials are used more.
2. Film type self-adhesive labels are commonly used in PE, PP, PVC and some other synthetic materials. The film materials are mainly white, matte, and transparent. Since the printability of the film material is not very good, it is generally treated with corona or by adding a coating on its surface to enhance its printability. In order to avoid deformation or tearing of some film materials during the printing and labeling process, some materials will also undergo directional treatment, uniaxial stretching or biaxial stretching, for example, the application of biaxially stretched BOPP materials is quite common.