Electromagnetic shielding film and preparation method thereof

Abstract

The invention relates to an electromagnetic shielding material and especially relates to an electromagnetic shielding film and a preparation method thereof. The electromagnetic shielding film possesses a layer structure and is formed by an adhesive layer and a shielding layer. One side of the shielding layer which is combined with the adhesive layer possesses a smooth surface. And the other side possesses a suede structure. The preparation method of the electromagnetic shielding film comprises the following steps: S1. providing an original fabric; S2. coating UV; S3. electroplating; S4. gluing; S5. sticking a release film. The invention provides the electromagnetic shielding film which can save the coating materials and has no pollution, and also provides the preparation method of the electromagnetic shielding film.

Description

technical field [0001] The invention relates to an electromagnetic shielding material, in particular to an electromagnetic shielding film and a preparation method thereof. Background technique [0002] Electromagnetic shielding films are widely used, especially in the field of electronic products. In electronic products, in addition to directly making some parts of the product into electromagnetic shielding materials, the most widely used is to achieve electromagnetic shielding through film. [0003] In the prior art, generally a shielding material is plated on a substrate layer or an electroplated conductive cloth is directly used, and then glue is applied on one side, or a release film is attached to form an electromagnetic shielding film. For example, Chinese patent document CN101513782A disclosed on August 26, 2009 an electromagnetic wave shielding material suitable for electronic products such as computers, electronic game consoles, mobile phones, etc., including condu...

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Problems solved by technology

[0004] The substrate layer as the carrier generally uses PET cloth or acetate cloth, and the convex and concave texture on the surface forms a suede surface, which has a good wave-absorbing effect; The suede surface directly formed by the concave texture has holes. When plating the shielding layer, the amount of coating material is large, resulting in waste. On the other hand, because of the existence of holes, the glue will penetrate through the holes to The front side of the substrate layer increases the amount of adhesive material used and also causes pollution

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