Adhesive protecting film

Abstract

The adhesive protecting film consists of low density polyethylene 28-34 wt%, linear low density polyethylene 25-26 wt%, EVA 10-38 wt%, polyethylene elastomer4-22 wt%, antistatic agglomerate 3-4 wt% and stabilizing assistant 2-6 wt%. The said materials are mixed, and the mixture is heated and flowed to form the adhesive protecting film, which is further corona treated and printed with ad and other content on it. The adhesive protecting film has high transparency, high elasticity, high flexibility, low density, high heat stability, application temperature of 0-75 deg.c and environment friendship.

Description

【Technical field】 [0001] The present invention relates to protective films, in particular to self-adhesive protective films. 【Background technique】 [0002] During storage and transportation, small mobile phone screens to large car exterior paint films are often eroded by ultraviolet rays, acid rain in the atmosphere, bird droppings, small insects, microorganisms, and salt spray in seawater. It is also easy to be polluted, scratched, and scratched during transportation and transportation. Therefore, many household appliances, high-end furniture, and decorative materials need to be protected with protective films. The protective film covers the surfaces of polycarbonate boards, acrylic boards, PS boards, PP board displays, etc., and can protect during storage, transportation and construction. The protective film is divided into two types: glue-coated protective film and three-layer melt co-extruded blown protective film. [0003] The glue-coated protective film is made of p...

AI Technical Summary

Problems solved by technology

The polymers that make up the bonding layer mainly include polyisobutylene, polyacrylic acid and its esters, ethylene-vinyl acetate copolymer, polyurethane, elastomers, etc. Among them, polyisobutylene, polyacrylic acid and its esters, ethylene-vinyl acetate copolymer These materials are mainly used in aluminum-plastic panels, building decoration materials and security doors. These materials have a low glass transition temperature and low molecular weight. Therefore, after the protective film is torn off, the adhesive resin is often transferred and remains On the surface of the protective body, and organic solvents are used in the production process, which seriously pollutes the environment, affects the health of workers, and poses safety and fire hazards

[0004] The three-layer melt co-extruded blow molding protective film adopts green and environmental protection technology. There is almost no pollution in the whole production process, and it will not remain on the protected body after being torn off. This type of protective film is divided into high-temperature protective film and room temperature protective film. High temperature protective film can be pasted on the protected body at about 50°C, and room temperature protective film can be pasted on the protected body at room temperature. The adhesive strength of these two types of protective films will change with the temperature. The higher the temperature, the stronger the viscosity. At high temperature, it sticks very firmly. It is difficult to tear off. In serious cases, it cannot be torn off at all, which affects the normal use of the protected product. The lower the temperature, the weaker the viscosity. At low temperature, some or even the whole part will fall off. , the purpose of protecting the product cannot be achieved, and poor stability has become an important factor hindering the development of self-adhesive protective film