Self-adhesive labels are usually also called self-adhesive labels. Self-adhesive labels are usually composed of surface materials, adhesives, tissue paper, etc. With the use of self-adhesive labels, now from ordinary families to society Self-adhesive is used in all walks of life. It plays an important role in trademark labels of food, electrical appliances, automobiles, etc. When using it, you only need to gently tear off the bottom paper and it can stick to any surface. The surface of this label is made of many kinds of materials, and there are different types of adhesives, etc. Different types of self-adhesives can also be formed according to different uses. Let’s introduce the classification of self-adhesive stickers.

Application fields of self-adhesive stickers

The surface coating of self-adhesive stickers is generally treated with special treatments in order to make the self-adhesive adhesive better adsorbed. Dry adhesive was first invented by Americans. It was first used in manual production and later in the industrial field. The application fields of self-adhesive are very broad. It is generally used as a material for architectural decoration, such as decorative decals on cars or motorcycles, and product display windows. Labels on labels, labels on containers, etc. Generally, special adhesives can be used at this time to have better fire resistance and water resistance; they are also generally used as labels on food or chemicals, medicines, etc. In order to make the labels For clarity and good durability, self-adhesive is generally used.

Classification of self-adhesive stickers

1: Surface materials used: molded wood free paper, coated paper art paper (shading/mirror surface), transparent PVC, electrostatic PVC , polyester PET, laser paper, heat-resistant paper, PP, PC, kraft paper, fluorescent paper, thermal paper, copper wire dragon, silver wire dragon, gold-plated paper, silver-plated paper, synthetic paper (CPC/PP/HYL/Excellent Tough paper/pearl paper), aluminum foil paper, fragile (anti-counterfeiting) paper, textured paper, cloth label (Tyvik/nylon), pearl dragon, sandwich copper plate, thermal paper.

2: Use film type: transparent PET? Translucent PET? Transparent OPP? Translucent OPP? Transparent PVC? Glossy white PVC? Matte white PVC? Synthetic paper? Glossy gold (silver) Polyester? Matt gold (silver) polyester?.

3: Use glue types: universal super sticky type, universal strong sticky type, refrigerated food strong sticky type, universal 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.

The development of self-adhesive stickers

Self-adhesive stickers are often used in the printing industry. With the development of the times, self-adhesive stickers have evolved into a very independent and special technology. At present, Internationally, it is mainly used in the United States and other European and American countries. It is usually used in self-adhesive printing technology. Self-adhesives are also divided into paper-based self-adhesives and film-based self-adhesives. Film-based self-adhesives are more commonly used in high-end products. The market The film self-adhesives on the market are white, transparent, etc., but because film self-adhesives are easy to tear during printing, some materials will undergo special treatment. Usually, this type of self-adhesive is made of PE and other materials.

Selection of adhesive for self-adhesive stickers

Adhesives generally use the cast coating method. The basic principle is to inject the adhesive through the pressure of the coating head cavity. , the top of the coating head is an adjustable slit. As the backing paper runs during coating, the adhesive evenly flows out of the slit of the coating head and is coated on the surface of the backing paper. The coating amount can be adjusted by adjusting the slit. The coating amount of the adhesive is the key to determining the performance of the self-adhesive material. The generally recommended coating amount is 24g/m2, and the tolerance is ±3 grams. When the viscosity of the adhesive changes, the pressure can be adjusted to keep the overall coating weight constant. The advanced cast coating device feeds back the coating thickness information to the computer control equipment through an infrared scanning sensor. After analysis and processing, it automatically adjusts the relevant data to ensure the stability of the adhesive coating quality. The amount of adhesive applied should vary according to the season and regional temperature and humidity, and can also be adjusted according to customer requirements.

The general rule is that the coating amount in winter should be larger than that in summer.

In winter, the amount of coating used in the north is larger than that in the south. For different substrate surfaces, rough surfaces require a larger coating volume than smooth surfaces. The coating amount is related to the adhesive force of the material. Within a certain range, the adhesive force is directly proportional to the coating amount. The coating amount of adhesive that is too large or too small has a direct impact on the processing and storage of the material.

Self-adhesive was invented in the last century and has gradually matured. It has also been used in various industries and fields, providing very convenient help to human life. To some extent, it has promoted the traditional label The development of self-adhesive stickers has greatly improved people's work. The above is the content about the classification of self-adhesive stickers. I hope it can be helpful to everyone!