The self-adhesive material release paper is commonly called “backing paperâ€. Its surface has low surface energy and is not sticky. The backing paper has an insulating effect on the adhesive, so it is used as an attachment to the paper to ensure that the paper can be easily Peel off from the bottom sheet. So, what are the classifications of self-adhesive materials ? What is the basic structure and function of the adhesive material ? Let's take a look with Xiao Bian below. Self-adhesive material classification 1, according to the classification of adhesive properties, can be divided into permanent adhesive materials and removable adhesive materials; 2, according to adhesive coating technology classification, can be divided into hot-melt adhesive materials, solvent-type adhesive materials and emulsion adhesive materials; 3, according to the classification of adhesives and chemical properties, divided into two kinds of rubber-based and acrylic adhesive materials; 4, according to the characteristics of the bottom paper classification, divided into opaque bottom paper, translucent bottom paper and transparent backing paper three kinds of self-adhesive materials; 5, according to the characteristics of surface materials, divided into paper stickers, film stickers and special stickers. The basic structure and function of adhesive materials What is the basic structure and function of the adhesive material? Self-adhesives are mainly composed of: surface coating, face material, primer, adhesive, release coating, backing paper, back coating or back printing. The following descriptions are made on the self-adhesive component materials: 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 the adhesion of ink 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 film materials. 2, adhesive 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 ingredient in adhesive material technology and are key to the application of labeling technology. 3, release coating (coated silicon layer) That is, the surface of the base paper is coated with a silicone oil layer. The application of the silicone oil can make the base paper a surface with a very low surface tension and a very smooth surface. The function is to prevent the adhesive from sticking to the base paper. 4, 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. 5, surface material That is, the surface material is a material that accepts the printed graphic on the front side, receives the adhesive on the back side, and is finally applied to the attached article. 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 a good ink, and have enough strength to accept a variety of processing, such as die cutting, waste, slitting, punching and labeling. 6, back or back Back coating is a protective coating on the back of the backing paper to prevent waste, and the adhesive around the rewinded label is attached 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. 7, coating The same as the surface coating, it is just coated on the back of the face material. The main 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. Above on the classification and the basic structure and the role of self-adhesive material adhesive material on a brief introduction here, I hope for your help. For more information, please visit this website. Stay tuned. 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