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Method for making matte release paper for pressure sensitive tapes

A production method and technology of release paper, which are applied in paper, papermaking, paper coating, etc., can solve the problems of uneven haze on the pressure-sensitive adhesive surface, inconsistent grinding depth, and unstable peeling force of the release film. Achieve the effects of stable peeling force, good haze effect and convenient operation

Active Publication Date: 2014-11-05
太仓斯迪克新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages: the depth of grinding is inconsistent, resulting in unstable peeling force of the release film, there is a risk of poor release, and the haze of the pressure-sensitive adhesive surface is uneven, resulting in product waste

Method used

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  • Method for making matte release paper for pressure sensitive tapes
  • Method for making matte release paper for pressure sensitive tapes
  • Method for making matte release paper for pressure sensitive tapes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: A kind of manufacture method of matte release paper for pressure-sensitive tape, its manufacture process is as follows:

[0036] Step 1: First, treat the surface of the base paper of the release paper so that there is no paper scraps or stains on the surface.

[0037] Step 2: On the surface of one side of the base paper of the release paper, use a laminating machine to coat a layer of PE coating layer, and then cool it; the laminating machine can use the high-speed extrusion single-sided flow produced by Changzhou Laiyi Plastic Machinery Co., Ltd. Extended composite unit type A.

[0038] Step 3: Prepare the matte release agent

[0039] First, prepare the materials according to the following mass percentages:

[0040]

[0041] The curing agent is methyl hydrogen-containing silicone oil; the catalyst is platinum; the filler is talcum powder with a particle diameter less than or equal to 15 microns; the viscosity of the hydroxy silicone oil is 8000 cps. ...

Embodiment 2 3

[0047] Embodiments 2-3: A method for making a matte release paper for pressure-sensitive adhesive tape

[0048] 1. The raw material formula of the matte release agent is shown in the following table:

[0049]

[0050] Note, the % in the table represents the mass percent content.

Embodiment 2

[0051] The viscosity of the hydroxy silicone oil described in Example two is 14000cps. The viscosity of the hydroxy silicone oil described in Example three is 13000cps.

[0052] The viscosity of the polyurethane adhesive described in Example 2 is 2300cps. The viscosity of the polyurethane adhesive described in Example three is 2700cps.

[0053] Two, preparation method is the same as embodiment one.

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Abstract

The invention discloses a method for making matte release paper for pressure sensitive tapes, which mainly comprises the following steps: 1, laminating a laminating layer on the surface of one side of release base paper, and then cooling the laminating layer; 2, coating a matte release agent on the laminating layer; and 3, drying the matte release agent. The matte release agent is prepared from the following raw materials: 27-35% of hydroxy silicone oil, 1-3% of curing agent, 5-8% of catalyst, 20-50% of polyurethane adhesive, 2-5% of fumed silica, and 15-47% of packing, wherein the curing agent is methyl hydrogen silicone oil; the catalyst is platinum; and the packing is talcum powder with particle diameter of less than or equal to 15 microns. The method disclosed by the invention is simple in production process and convenient to operate; the cost is reduced; and the release agent mixed with a fogging agent fills and levels up concave and convex parts of the surface of laminating paper, and matte release paper which is stable in stripping force and enables the surface of a pressure sensitive tape to have a good matte effect can be produced, so that the tape surface achieves a low light reflection effect.

Description

[0001] The original application number is 201110194267.5, the application date is July 12, 2011, and the title of the invention is: a matte release material. technical field [0002] The invention relates to a method for manufacturing a matte release paper for a pressure-sensitive adhesive tape, and belongs to the technical field of release material preparation. Background technique [0003] The release paper is called release paper and anti-sticking paper. It is a kind of anti-sticking paper that prevents the prepreg from sticking and can protect the prepreg from contamination. [0004] The release paper is made by pouring a layer of PE film with a certain thickness on the surface of the base paper, and then coating the silicone release agent on the surface layer of the environmentally friendly PE film, so that it can show extremely lightness to various organic pressure-sensitive adhesives. And stable release force. [0005] Different organic pressure-sensitive adhesives, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/00D21H19/00D21H19/14
Inventor 金闯
Owner 太仓斯迪克新材料科技有限公司
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