Glue adhesive film as well as preparation method and application thereof

Abstract

The invention provides an adhesive film. The adhesive film comprises a frosted grid release layer, an adhesive layer and a film layer. The invention further provides a method for preparing the adhesive film and application of the adhesive film in the aspects of advertising, decoration and the like. The adhesive film provided by the invention basically reaches zero initial adhesion, and has good reworkability; meanwhile, the release force is high, and the attaching effect is good; and the preparation process is simple and easy to operate.

Description

technical field [0001] The invention relates to the field of adhesive materials, in particular to an adhesive film, its preparation method and its application in advertising, decoration and the like. Background technique [0002] Advertising and decoration decorative films have penetrated into all aspects of human life and work, and are widely used in various advertising and display fields. Large application places such as large shopping malls, high-speed rail stations, subways, office halls, restaurants, etc., and small application places include refrigerators. , automobiles, buses, containers, etc., its use is increasing. At present, patterns and characters are printed on the surface of PVC and other substrates by color digital printing or traditional screen printing. [0003] Due to the complex pasting environment, exterior walls, windows, car shapes, etc. are mostly non-planar structures with many irregular corners. When pasting the film, it needs to be repeatedly torn ...

AI Technical Summary

Problems solved by technology

This technical solution has the following defects: 1. There are strong requirements for the arrangement equipment and process of "non-cohesive solid particles". The size and distribution of "sticky solid particles" are strictly limited, and the high-precision process requirements will inevitably affect production efficiency and production capacity; 2. The size of solid particles is relatively large, generally 10-60 μm, so a large pressure is required to displace them. It is pressed into the adhesive layer to establish the bonding strength, which has a certain degree of influence on the construction efficiency

The protective film prepared by this method has the properties of low initial adhesion and high holding force, which can solve the problem of not using the film for construction due to excessive initial adhesion of the pressure-sensitive adhesive layer of the protective film

This technical solution has the following defects: 1. Reducing the initial adhesion does not mean that there is no initial adhesion at all. It is still necessary to repeatedly tear and paste the film, which affects the construction efficiency. At the same time, multiple pasting will also reduce the adhesiveness; Reducing the initial adhesion will lead to insufficient adhesion, and the instant adhesion cannot be completed after the construction is aligned. Insufficient adhesion will cause the film to lose adhesion and edge warping; 3. Reduce the initial adhesion by adjusting the formula The force will increase the hardness of the glue, resulting in a decrease in the adhesion force, and it is easy to cause degumming when repeated tearing and pasting

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