Silicon oil film for pressure sensitive tape

Abstract

The invention discloses a silicon oil film for pressure sensitive tape. The silicon oil film is characterized by comprising a polyester film layer and a sprinkling film coating layer coating the surface of the polyester film layer. An embossed pattern area is arranged on the surface, opposite to the polyester film layer, of the sprinkling film coating layer, the surface of the embossed pattern area is coated with an organic silicon release agent layer, and the sprinkling film coating layer is prepared from, by weight, high-density polyethylene, low-density polyethylene, a styrene-isoprene-styrene block copolymer SIS, a styrene-butadiene block copolymer SBS, paraffin, glycerol, POE polyolefin elastomer and a coupling agent. The formed mesh lines are clear in embossment, uniform in depth and even in distribution.

Description

technical field [0001] The invention relates to a silicone oil film for a pressure-sensitive adhesive tape, belonging to the technical field of release materials. Background technique [0002] Usually the release film refers to the coating of silicone oil on the surface of the polyester film to play the role of anti-sticking; the surface of the release film can have a smooth surface and a matte surface, but the pressure-sensitive adhesive tape made of this traditional release film When using label tape, the beautification effect of the glue surface is not ideal. When the ordinary release film is attached to the pressure-sensitive adhesive tape, air bubbles are likely to form between the two. Using embossed release paper, although it can achieve the effect of air bubbles, but because the release paper is easy to absorb water, the tear resistance is not high, it is difficult to observe the glue surface, and there are paper scraps on the edge after die-cutting, so it cannot be ...

AI Technical Summary

Problems solved by technology

[0002] Usually the release film refers to the coating of silicone oil on the surface of the polyester film to play the role of anti-sticking; the surface of the release film can have a smooth surface and a matte surface, but the pressure-sensitive adhesive tape made of this traditional release film When using label tape, the beautification effect of the glue surface is not ideal. When ordinary release film and pressure-sensitive adhesive tape are bonded, air bubbles are likely to form between the two

Using embossed release paper, although it can achieve the effect of air bubble removal, but because the release paper is easy to absorb water, the tear resistance is not high, it is difficult to observe the rubber surface, and there are paper scraps on the edge after die-cutting, so it cannot be used by high-end product used

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