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Matte release paper

A release paper, matte technology, applied in the direction of surface covering paper, paper making, paper coating, etc., can solve the problem of high flatness of the coating layer, poor adhesion between the release agent coating and the coating layer, destroying the purity of the film, Consistency and other issues, to achieve the effect of improving bonding fastness, good haze effect and convenient operation

Inactive Publication Date: 2012-08-01
JIANGSU SIDIKE NEW MATERIALS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The film layer prepared by the prior art has high flatness, and the adhesion between the release agent coating and the film layer is poor. When the release paper is attached to the film coated with a high-viscosity adhesive, it is easy to cause The release agent coating on the release paper is taken away by the adhesive with greater adhesion, thus forming a difficult-to-clean release agent coating area on the local surface of the film, destroying the overall purity and consistency of the film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Matte release paper

[0026] A matte release paper, the matte release paper includes a substrate, at least one side surface of the substrate is coated with a coating material, and the raw material formula of the coating material consists of the following materials in mass percentage: composition:

[0027] Polymer 71.2%~90.8%;

[0028] Lubricant 0.2%~1.2%;

[0029] Fogging filler 9%~27.6%;

[0030] Wherein, the polymer is selected from polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polybutylene terephthalate; the lubricant is selected from paraffin, white oil, hard Fatty acid, stearate; the filler is a solid particle with a particle size of 3-20 microns.

[0031] The preferred technical solution of the present invention, the fogging filler is at least one of silicon dioxide, calcium hydroxide, talcum powder and calcium sulfate.

[0032] The preferred technical solution of the present invention, the stearate comprises calcium ...

Embodiment 2 6

[0036] Examples two to six: matte release paper

[0037] A matte release paper, the matte release paper includes a substrate, at least one side surface of the substrate is coated with a coating material, and the raw material formula of the coating material is composed of the following materials in mass percentage:

[0038] polymer lubricant fog filler Embodiment two 71.2% 1.2% 27.6% Embodiment three 90.8% 0.2% 9% Embodiment Four 85% 0.4% 14.6% Embodiment five 80% 0.5% 19.5% Embodiment six 75% 0.6% 24.4%

[0039] Note: 1. The percentage sign in the table indicates the mass percentage.

[0040] 2. Polymer: Example 2, polyethylene; Example 3, polypropylene; Example 4, PVC; Example 5, PET; Example 6, polypropylene and polyethylene according to the mass ratio of 1:1.

[0041] 3, lubricant: embodiment two, white oil; embodiment three, magnesium stearate; embodiment four, solid paraffin; embodiment five, white oil and stear...

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Abstract

The invention relates to matte release paper, comprising a substrate, wherein coating material is coated on the surface of at least one side of the substrate, raw material formula of the coating material comprises 71.2-90.8% of polymer, 0.2-1.2% of lubricating agent and 9-27.6% of fogging filler; the polymer is selected from polyethylene, polypropylene, PVC (polyvinyl chloride) and PET (polyethylene terephthalate); and the filler is solid particles with particle size of 3-20 microns. According to the invention, the matte release paper with stable release force and a pressure sensitive adhesive surface having a good haze effect can be produced, thus an adhesive moving surface can achieve low reflective effect. The matte release paper has the advantages that the production process is simple, equipment investment cost is low and operation is easy to carry out.

Description

technical field [0001] The invention relates to a matte release paper, which belongs to the technical field of matte materials. Background technique [0002] Release paper, also known as release paper and anti-adhesive paper, is a kind of anti-adhesive paper that can prevent prepreg from sticking and protect prepreg from contamination. [0003] The release paper is to coat the coating material (such as polyethylene, polypropylene) on the surface of the base paper (substrate) through a coating machine to form a layer of coating layer with a certain thickness, and then apply the silicone release agent on the On the coating layer, it can exhibit extremely light and stable release force for various organic pressure-sensitive adhesives. [0004] Different organic pressure-sensitive adhesives, such as: hot melt adhesives, acrylic adhesives, and pressure-sensitive adhesives of rubber systems, etc., require different release forces of the release paper. The mold force is adjusted ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/18D21H19/38D21H19/40D21H19/44D21H19/56D21H19/62
Inventor 金闯周满意
Owner JIANGSU SIDIKE NEW MATERIALS SCI & TECH CO LTD
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