For durability solutions for adhesive labels, the first step in the product selection process is to determine the adhesive that suits your durability requirements. The selection of adhesive should include the consideration of the following indicators: the surface energy of the substrate, the material of the substrate, the shape of the substrate, the use temperature and the labeling temperature, and environmental factors such as outdoor use and contact with chemicals.

The self-adhesive labels of different industries have their own industry characteristics and use requirements. The daily chemical industry (such as shampoo and shower gel) requires the labels to be beautifully printed, giving people aesthetic feeling and attracting customers' attention. However, due to the special production and processing process of electronic components, the surface material and adhesive of the label are often required to be able to adapt to harsh environment, acid resistance, alkali resistance, high temperature resistance and ultraviolet resistance, and the printed and printed contents of the label itself remain clear and complete, guide consumers to use or serve as a warning. Labels on electronic products are often required to have the same long service life as the product being affixed. We call this type of label durability label. The surface material of the label requires good weather resistance and toughness, and the adhesive requires High bond strength and durability. The main industries used for durability labels are: industrial electronics, automobiles, cable labels, power tools, etc. Let's talk about how to choose a durability label for your application.

Due to the special viscoelastic properties of pressure-sensitive adhesive, it can produce viscous flow under the action of slow and appropriate external pressure, so as to achieve close contact with the sticky surface. However, this intimate contact alone is not sufficient to produce sufficient adhesion. The pressure-sensitive adhesive must also have good wettability to the surface of the paste, so that it is close to the distance between the molecules and the molecules that are pasted, so that it can have sufficient adhesion. The high surface energy of the substrate surface can be easily wetted by the adhesive, thereby achieving a higher viscosity. The surface of the substrate with low surface energy is not easily wetted by the adhesive. High surface energy substrates include aluminum, copper, glass, gold, lead, stainless steel and other metals, and medium and low surface energy substrates include nylon, epoxy resin, PC, PET, PVC, ABS, PS and other plastics. Durable adhesive according to the composition can be divided into rubber-based and acrylic type two, according to the coating method can be divided into water-soluble and solvent-based two. Durable adhesive according to the composition can be divided into rubber-based and acrylic type two, according to the coating method can be divided into water-soluble and solvent-based two. Solvent-based rubber-based adhesives are very suitable for labeling medium and low surface energy substrates, as well as powder-coated coating surfaces and textured surfaces due to excellent flow and initial adhesion. Solvent-based acrylic adhesive is composed of acrylic polymer cross-linked with each other, with excellent high temperature resistance and chemical corrosion resistance, suitable for low surface energy substrates that are difficult to paste, can be reattached in a short time, with excellent chemical corrosion resistance, can resist ultraviolet radiation for a long time, and can be recommend used outdoors.

Many customers use PET labels on plastics such as ABS. After changes in temperature and humidity, the surface of the label will bubble and drum. This is due to the fact that the gas in the ABS material is volatilized by heating and cannot be ruled out. The glue surface of Fasen reticulated glue series products is specially reticulated, and the glue surface forms a grid gap, which can keep the air between the label and the substrate to be pasted unobstructed with the outside world, so that no bubbles will be generated between the label and the pasted surface, and the flatness of the label surface is ensured. Suitable for large area labeling, rough surface, labeling and storage in the process of temperature differences in the environment.

Select the second step of the product process to select the appropriate surface material. Commonly used durable films are divided into polyester film, polyvinyl chloride film, synthetic paper, polyolefin film, polyimide film and other special films. Films of different materials have different specifications and physical and chemical properties.

1. Polyester film, which is the most widely used PET film, has strong tensile strength and tear strength, excellent high temperature resistance, and can be called a highly transparent, opaque and metallized film. After surface treatment and surface coating, it can adapt to all kinds of printing and bar code printing, and has good automatic labeling ability. Commonly used thicknesses range from 25 microns and 50 microns.

2. Polyvinyl chloride film, also known as PVC film, according to the production process can be divided into casting type and rolling type two. Soft PVC has low strength, general temperature resistance, poor tear resistance, good flexibility, shrinkage and opacity, good processing characteristics and labeling performance, can be used outdoors for a long time, has excellent resistance to chemical corrosion, can be processed into a variety of colors and light, matt and metalized film. Because PVC is soft, in order to increase the firmness, the market generally has a thickness of 50 microns to 100 microns. Farson's sturdy PVC surface materials are designed for improved product labeling.

3. Synthetic paper, biaxially oriented polypropylene film, the surface has a layer of matted white coating, its writing, printing performance is similar to paper, suitable for a variety of printing methods, and can be bar code printing. Temperature resistance and chemical corrosion resistance in general. Commonly used thickness is 50 microns ~ 80 microns.

4. Polyolefin film, Fasson Clear and Premans, a patented product of Eli Fasson, are synthetic materials of PE and PP films. They have been subjected to single stretching treatment in the machine direction. Compared with high-priced PET and PVC, they are more economical substitutes and have outdoor durability ranging from 6 to 12 months. This high strength, high stiffness film has very good tear strength, excellent chemical resistance.

5. Polyimide film, also known as Polyimide, has a surface coating, excellent performance of polyimide surface material with high opacity, excellent tear resistance, excellent high temperature resistance and dimensional stability. The film surface material is mainly used in high temperature welding on the circuit board to play a marking role, can adapt to the harsh environment of the operation process such as the tin furnace, and has a good performance in ultra-high temperature applications.

6. Other special films such as polystyrene film, or PS film, low strength, high temperature resistance and chemical corrosion resistance, medium hardness, cheaper price, printing processing and labeling characteristics in general, suitable for indoor use, it is recommended to have Corona treatment device on the equipment printing processing, suitable for all kinds of printing methods. The thickness generally ranges from 50 microns to 200 microns.

The third step of selecting the product process is to determine the appropriate bottom paper according to the material processing method. According to the different label die cutting methods and labeling methods, the user needs to select the bottom paper with different thickness, light transmittance and material. The commonly used bottom paper is plastic coated bottom paper (PEK), Glassin bottom paper (Glassine), super calender bottom paper (SCK) and film bottom paper (such as PET and BOPP). The bottom paper characteristic chart compares the processing performance of various bottom paper in great detail.

Finally, after determining the various components of the self-adhesive sandwich structure, the user can consult the material supplier about the required product combination. In addition, one point cannot be forgotten. After getting the label sample or sample roll, the user must do simulation tests in the actual processing or final use environment before finally confirming the material. In that way, the probability of problems in actual use can be minimized to ensure the accuracy of material selection.