Question 1: What are the self-adhesive materials? There are many kinds of this. The plastic you are talking about is actually PET, PE, OPP film and other materials.

Self-adhesive materials, also known as self-adhesive materials, pressure-sensitive materials or sticky notes, are the basic materials for label printing. It is widely used in identification labels of industrial production, daily necessities, etc. Various PET films, PVC films, and PE films can be used as self-adhesive materials.

The basic composition of self-adhesive printing materials. It is mainly composed of surface printing layer, adhesive layer and peeling layer.

Silicone PET protective film self-adhesive material

1. Surface printing layer

There are generally two types of materials used in the surface printing layer, namely paper-based printing layer and film printing layer.

(1) Paper-based printing layer. Currently, the paper-based printing layers commonly used include offset paper, coated paper, various colored glossy and fluorescent papers, aluminum foil and other special papers. The requirements for the paper-based printing layer should comply with relevant national standards.

(2) Film printing layer. Thin film printing layers include the following types.

①Transparent film. Transparent films are divided into composite films and printing films.

Composite film. Mainly include polypropylene film (PP), polyethylene film (PE film) and polyvinyl chloride film (PVC film). Film for printing. Mainly include polyester film (PET film), polyethylene film (PE) and polyvinyl chloride film (PVC).

②Translucent film. Including polyester film (PET) and polyethylene film (PE), etc.

③ Opaque film. There are mainly golden polyester films (gold PET films) and silver polyester films.

④Colored film. Generally, polyvinyl chloride film is used.

⑤Special film.

2. Adhesive layer

The adhesive layer is closely related to the performance and scope of use of self-adhesive printing materials. It is one of the important performance indicators of self-adhesive printing materials. one.

There are three types of adhesives: rubber type, resin type and hybrid type.

The main performance indicators of the adhesive are as follows:

Coating thickness: 0. 02 ± 0. 005mm;

Viscosity (25 ℃): 6 ± 0. 5Pa?s;

Solid content: (30～33) %;

180° peel strength: ≥1000g/ 2. 5cm (10cm/min).

Reasonable selection should be made based on the purpose and performance parameters.

3. Peeling layer

It is made by coating silicone oil on the surface of the paper or film base material to prevent the adhesive from sticking to the peeling layer base material, while also ensuring There is a certain viscosity between the surface printing layer and the peeling base material layer to facilitate printing and die-cutting.

There are two types of base materials for peeling layers: paper base materials and film base materials.

①Paper base material. There are two types of paper substrates: translucent paper and poly-layered kraft paper. Most of them use translucent paper. Poly-layered kraft paper is only used as a base paper for sealing strips and the like.

②Film substrate. This kind of substrate is a high-grade substrate with good dimensional stability and light resistance. It mainly includes polyester film type and polypropylene film type. Because of its high price, this substrate is limited to labels for high-end products.

It can be said that there are many different types of films used as base materials or release materials in self-adhesive materials.

Question 2: What materials are self-adhesive labels made of? Self-adhesive labels are also called self-adhesive labels, instant stickers, pressure-sensitive paper, etc. They are a composite material that uses paper, film or special materials as the fabric, an adhesive on the back, and a silicone-coated protective paper as the base paper. And after printing, die-cutting and other processing, it becomes a finished label. When applying, remove the backing paper and just press it lightly to apply it to the surface of various materials. It can also be used by the Sichuan labeling machine to automatically label on the production line.

Question 3: What are the main ingredients of self-adhesive? The main components of self-adhesive adhesives

1) Waste polystyrene foam.

2) Xylene.

3) Ethyl acetate

4) Butyl acetate.

5) Dibutyl phthalate.

The main components of self-adhesive are the above five kinds, and each raw material is an indispensable part

The existing self-adhesive tablets are mainly made of natural rubber, so the cost is relatively high. high. The self-adhesive stickers introduced are made from waste materials such as fast food lunch boxes, foam plastic blocks for packaging instruments and equipment, and scraps from the production of foam plastic products. They have the same effect as self-adhesive stickers made of natural rubber.

Question 4: What is the material of usually transparent self-adhesive adhesive? Self-adhesive adhesive is made of polystyrene, organic solvents, plasticizers and auxiliary materials. This kind of glue is suitable for pasting paper and other items (such as trademarks and labels) on the surface of glass, metal, walls and other objects. Because waste foam plastics can also be used as raw materials. Therefore, not only the cost is low, but also the public nuisance is eliminated. In addition, this kind of glue has good adhesion effect and can be used repeatedly. Resistant to acid, alkali and freezing. By adjusting the weight percentage of the formulated materials, the drying and wetting speed of the self-adhesive can be changed.

Question 5: What kind of paper is used for self-adhesive printing? Self-adhesive is a printing material with glue on the back, which is divided into top layer, glue layer and bottom paper. There are many types of surface layers, commonly used ones include coated paper, offset paper, thermal paper, synthetic paper, PET, PP, PE, aluminum foil paper, etc.

Question 6: What is the film on the self-adhesive label made of? Self-adhesive labels are also called self-adhesive labels, instant stickers, pressure-sensitive paper, etc. They are made of paper, film or special materials as the fabric, and the back is It is a composite material coated with adhesive and with silicone-coated protective paper as the base paper, and is processed into finished labels after printing, die-cutting, etc. When applying, remove the backing paper and just press it lightly to apply it to the surface of various materials. You can also use a labeling machine to automatically label on the production line.

Question 7: What is self-adhesive? Self-adhesive is also called self-adhesive label material. It is made of paper, film or special materials as the fabric, with adhesive on the back and silicon-coated protective paper as the base paper. A composite material; 1. Surface material. It is the carrier of the content of the self-adhesive label, and the adhesive is coated on the back of the tissue paper. 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 (Tyvik/nylon) paper, pearlescent paper, Sandwich coated paper, thermal paper. 2． membrane material. Transparent polyester (PET), translucent polyester (PET), transparent oriented polypropylene (OPP), translucent oriented polypropylene (OPP), transparent polyvinyl chloride (PVC), glossy white polyvinyl chloride (PVC), matt white polyvinyl chloride (PVC), synthetic paper, glossy gold (silver) polyester, matt gold (silver) polyester. 3. Adhesive. Universal super sticky type, universal strong sticky type, refrigerated food strong sticky type, universal re-opening type, fiber re-opening type. On the one hand, it ensures moderate adhesion between the base paper and the facial paper, and on the other hand, it ensures that the facial paper can have strong adhesion with the paste after being peeled off. 4. Backing paper material. Release paper is commonly known as "backing paper". Its surface is non-sticky with low surface energy. The backing paper has an isolating effect on the adhesive, so it is used as an attachment to the facial paper to ensure that the facial paper can be easily peeled off from the bottom paper. Come down. Commonly used ones include white, blue, yellow glassine or onion paper, kraft paper, polyester (PET), coated paper, and polyethylene.

Question 8: How to identify PVC self-adhesive material? PVC, white PVC, black PVC, matte PVC, etc. Some people often mix PVC and PET together and cannot find the difference between them. With more than ten years of experience in PVC self-adhesive labels, we have summarized the differences between PVC and PET. The biggest difference is that PET cannot be stretched, while PVC has strong flexibility and soft feel. It also provides products with unique properties such as moisture-proof, waterproof, and gas-proof, making it widely used in flexible packaging for food, medicine, tobacco and alcohol, etc. As well as jewelry, jewelry, watches, electronics, clothing and other high-end occasions. Jinzhen is a manufacturer that supplies self-adhesive labels. We have professional knowledge about various PVC materials. If you need more information, you can contact us at any time. Professionals will patiently explain it to you.

Original from: Dongguan Jinzhen Self-Adhesive Material Co., Ltd. Original person: Niu Chunping