Self-adhesive, also known as self-adhesive label material, is a composite material that uses paper, film or special materials as the fabric, is coated with adhesive on the back, and is coated with silicone-coated protective paper on the backing paper.
- Surface coating: used to change the surface properties of the surface material, such as improving surface tension, changing color, adding a protective layer, etc., making it easier to accept ink and printing, and to prevent dirt, increase ink adhesion and prevent printing
The purpose of pictures and texts falling off.
Commonly used surface coating materials include transparent polyester, translucent polyester, transparent oriented oriented polypropylene, translucent oriented oriented polypropylene, transparent polyvinyl chloride, glossy white polyvinyl chloride, matte white polyvinyl chloride,
Synthetic paper, glossy gold polyester, matte gold polyester, etc. - Surface material: Also called surface material, it is the part that accepts printed graphics and text on the front, and is coated with adhesive on the back, and is finally applied to the object to be pasted.
The choice of surface material depends on the final application and printing process.
Common surface materials include mirror coated paper, coated paper, matte paper, special paper and other paper surface materials, as well as polypropylene film (BOPP film), polyester film (PET film), polyvinyl chloride film (PVC film),
Polyethylene film (PE film), polystyrene film (PS film), polycarbonate (PC), polyethylene amine (POLYIMIDE) and other film surface materials, as well as some special surface materials, such as synthetic paper, aluminum sheet
, textiles and various composite materials. - Bottom coating: a layer coated on the back of the surface material. It is mainly used to protect the surface material and prevent the penetration of the adhesive; increase the opacity of the fabric; increase the bonding force between the adhesive and the surface material; prevent the plastic surface from
The plasticizer in the material penetrates into the adhesive, affecting its adhesive performance, causing the label’s adhesive strength to decrease and fall off.
The base coat material is similar to the top coat material. - Adhesive: The function of the adhesive is to ensure appropriate adhesion between the base paper and the top paper, and at the same time, after the top paper is peeled off, it can have good adhesion to the object to be pasted.
There are many types of adhesives, and different formulas can be selected according to different surface materials, substrates and usage occasions.
Adhesives have a direct impact on the performance of self-adhesive materials and are one of the main properties of self-adhesive printing materials.
Adhesives can be divided into two types: permanent and removable according to their bonding properties; according to their chemical composition, they can be divided into rubber-based, acrylic-based, silicon-based, water-based and other types. - Bottom paper: Also called backing paper or bottom paper material, it is the bottom support material for self-adhesive materials, usually made of paper or film.
The choice of backing paper depends on the specific use and requirements of the self-adhesive label.
Common base papers include white cellophane, yellow cellophane, white moisture-proof paper, aluminum foil, polyethylene film, polyester film, etc.
Self-adhesive labels are easy to apply, convenient, fast, and durable. They are widely used in fields such as commodity packaging, logistics and transportation, product identification, marking, and advertising.