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Biaxially stretched polypropylene touch film

A technology of biaxial stretching and polypropylene, applied in the direction of layered products, synthetic resin layered products, chemical instruments and methods, etc., can solve the problems of solvent pollution, energy consumption, cumbersome preparation process, etc., achieve low cost and reduce equipment The input and the effect of avoiding solvent pollution

Inactive Publication Date: 2017-05-17
ANHUI GUOFENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the existing tactile films are all realized by coating methods. Generally, a layer of water-based tactile oil (polyurethane) and curing agent are coated on the surface of BOPP film and dried. It belongs to the follow-up processing of BOPP products, and its preparation process is cumbersome. And it needs to invest in equipment such as coating machines, and there are solvent pollution and energy consumption in the coating process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A biaxially stretched polypropylene tactile film, the film is composed of upper and lower surface layers and a core layer, wherein the upper surface layer is a tactile layer, the lower surface layer is an anti-adhesion layer, and the core layer is a polypropylene layer composed of 100% polypropylene ;

[0027] The tactile layer is composed of 20% polyolefin thermoplastic elastomer (TPO), 10% PE homopolymer and 70% PP homopolymer;

[0028] The anti-adhesion layer is composed of 98 wt % polypropylene and 2 wt % anti-adhesion masterbatch, wherein the anti-adhesion masterbatch is composed of 50% silicon dioxide with a particle size of 1 μm and 50% carrier homopolypropylene.

Embodiment 2

[0030] A biaxially stretched polypropylene tactile film, the film is composed of upper and lower surface layers and a core layer, wherein the lower surface layer is a tactile layer, the upper surface layer is an anti-adhesion layer, and the core layer is a polypropylene layer composed of 100% polypropylene ;

[0031] The touch layer is composed of 25% polyolefin thermoplastic elastomer (TPO), 15% PE homopolymer and 60% PP homopolymer.

[0032] The anti-adhesion layer is composed of 99 wt % polypropylene and 1 wt % anti-adhesion masterbatch, wherein the anti-adhesion masterbatch is composed of 10% silicon dioxide with a particle size of 3 μm and 90% carrier homopolypropylene.

Embodiment 3

[0034] A biaxially stretched polypropylene tactile film, the film is composed of upper and lower surface layers and a core layer, the upper and lower surface layers are both tactile layers, and the core layer is a polypropylene layer composed of 100% polypropylene;

[0035] The touch layer is composed of 22% polyolefin thermoplastic elastomer (TPO), 13% PE homopolymer and 65% PP homopolymer.

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PUM

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Abstract

The invention discloses a biaxially stretched polypropylene touch film, comprising an upper surface layer, a lower surface layer and a core layer, wherein one of the upper and lower surface layers is a touch layer, and the other of the upper and lower surface layers is an anti-adhesion layer; the touch layer consists of a polyolefin thermoplastic elastomer (TPO), a PE (Polyethylene) homopolymer and a PP (polypropylene) homopolymer, or consists of thermoplastic polyurethane elastomer rubber (TPU) and a PP homopolymer. The polypropylene touch film provided by the invention is prepared by a direct extrusion method, and the preparation method is simple and the cost is low.

Description

technical field [0001] The invention relates to the field of film technology, in particular to a biaxially stretched polypropylene tactile film. Background technique [0002] Tactile film, also known as hand film and velvet film, is a matte film with special fine velvet and leathery touch on the surface. It has a comfortable and strong velvet touch similar to silk, and it also has the characteristics of strong wear and scratch resistance, soft and delicate surface and low matteness. [0003] The special tactile feeling of the tactile film is given by the surface layer of the film. The surface of ordinary plastic film is relatively hard and very smooth, so it gives a very rigid tactile feeling. The tactile film is coated with a layer of relatively soft material on the surface of the film, and the distribution is very uniform without graininess, so it has a smooth and delicate feel after touching, and the comfortable and strong velvet touch of silk. [0004] At present, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/08B32B27/40B32B27/32
CPCB32B27/08B32B27/32B32B27/40
Inventor 汪中祥王红兵孙善卫
Owner ANHUI GUOFENG PLASTIC
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