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The solution of the residual of protectIve film
- Nov 30, 2018 -

Protective film is widely used in the surface of metal products, coated metal products, plastic products, automotive products, electronic products and profile products, etc., mainly to protect products from pollution during production, processing, transportation, storage and use. Injury, corrosion, protection of the original smooth and shiny surface, improve the quality of original products and enhance competitiveness. However, there is also the problem of degumming. This article looks at the solution to the degumming of the protective film.

First, human factors

The protective film is very simple at first glance. It is not a thin piece of plastic. It is easy for irresponsible newcomers to think that a film can satisfy the film protection needs of their products.

I don't know, there is a lot of expertise in it. For example, high temperature protective film is required in the process of high temperature; the film surface must be free of grease, banana water and other chemical residues before the film is applied, otherwise it is easy to cause chemical reaction between the residue and the glue, causing degumming and so on.

Second, the inherent factors of glue

According to the residual condition of the pressure sensitive adhesive on the surface to be protected and the substrate, the residual phenomenon of the protective film can be divided into the following three cases:

(1) Cohesive failure: Pressure-sensitive adhesive is applied to both the surface to be protected and the substrate, and the surface of the protective film is tarnished.

(2) Adhesive base damage: There is more rubber residue on the surface to be protected, and the substrate is visible on the rubber surface of the pe protective film.

(3) Migration residue: There is a small amount of pressure sensitive adhesive residue on the surface to be protected, and the gloss of the PE protective film is good.

If you have this problem, you can use a clean cloth to pick up a little alcohol, and wipe the residual glue repeatedly until the glue is wiped clean, but you should be careful not to use too much force when you perform the wipe. Otherwise it may affect the finish of the profile product.