Seven-layer part of self-adhesive material

1, surface coating
Used to change the surface properties of the face material. Such as improving the surface tension, changing the color, adding a protective layer, etc., to make it more acceptable ink and easy to print, to prevent dirt, increase ink adhesion, and to prevent the printing of graphics off. Surface coating is mainly used for non-absorbent materials such as aluminum foil, aluminized paper, and various types of film materials.
2, surface material
That is, the surface material is a material that receives the printed graphic below, the back side receives the adhesive, and finally it is applied to the attached object. In general, any flexible deformable material can be used as a self-adhesive material fabric, such as commonly used paper, film, composite foil, all kinds of textiles, thin metal sheet and rubber and so on. The type of face material depends on the final application and the printing process. Surface materials should be able to adapt to printing and printing, have good ink resistance, and have enough strength to be able to accept a variety of processing, such as die cutting, waste, slitting, punching and labeling.
3, coating
The same as the surface coating, it is just coated on the back of the face material. The primary purpose of the coating is:
(1) Protect surface materials to prevent adhesive penetration;
(2) increase the opacity of the fabric;
(3) increase the adhesive force between the adhesive and the surface material;
(4) Prevent the plasticizer in the plastic surface material from penetrating into the adhesive, affecting its adhesive properties, resulting in a decrease in the adhesive force of the label and the label falling off.
4. Adhesives The adhesive is the medium between the label material and the bonding substrate and acts as a bonding agent. According to their characteristics can be divided into two kinds of permanent and removable. It has a variety of recipes for different face materials and different occasions. Adhesives are the most important component of self-adhesive material technology and are key to the application of labeling technology.
5, release coating layer (coated silicon layer)
That is, the surface of the base paper is coated with a silicone oil layer. The application of silicone oil can make the bottom line a surface with a very low surface tension and a very smooth surface. The function is to prevent the adhesive from sticking to the bottom line.
6, bottom paper
The role of the bottom paper is to receive the release agent coating, protect the adhesive on the back of the face material, support the face material, enable it to die cut, waste and labeling on the labeling machine.
7, back or back
The back coating is a kind of protective coating on the back of the backing paper to prevent the waste adhesive and the adhesive around the rewinded label from sticking to the backing paper. Another role is to make multilayer labels. The back printing function is to print the registered trademark or pattern of the manufacturer on the back side of the backing paper, which serves as a propaganda and anti-counterfeiting effect.
What kinds of stickers do you have? There are five categories:
Classified by adhesive properties, can be divided into permanent adhesive materials and removable adhesive materials;
Classified by adhesive coating technology, can be divided into hot-melt adhesive materials, solvent-type adhesive materials and emulsion adhesive materials;
According to the classification of adhesives and chemical properties, it is divided into rubber-based and acrylic adhesive materials;
Classified according to the characteristics of the bottom paper, it is divided into opaque bottom paper, translucent bottom paper and transparent bottom paper three kinds of self-adhesive materials;
Classified according to the characteristics of surface materials, divided into paper stickers, film stickers and special stickers.