Preparation method of novel cloudy-surface release paper
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A release paper, matte technology, applied in chemical instruments and methods, paper/cardboard layered products, coatings, etc. solid effect
Active Publication Date: 2012-02-15
太仓斯迪克新材料科技有限公司
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[0003] The invention provides a method for preparing a new type of matte release paper, the purpose of which is to solve the
Method used
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[0029] Example 1. Preparation method of a new type of matte release paper
[0030] See attached figure 1 As shown, the preparation method of a new type of matte release paper is as follows:
[0031] First, the surface of the base paper of the release paper is treated so that the surface is free of paper dust and stains.
[0032] (1) On one side of the release paper base paper, use a laminating machine to coat a PE coating layer 1. After the coating layer 1 is cooled, coat the other side of the release paper base paper. A layer of adhesive layer 3 is applied to obtain a base material layer for use. The laminating machine can use the high-speed extrusion single-sided casting compound unit type A produced by Changzhou Laiyi Plastic Machinery Co., Ltd.
[0033] (2) Coat the surface of the polyethylene terephthalate film layer with a matte coating agent with a thickness of 0.2-2 microns. The formula of the matte coating agent is shown in Table 1.
[0034] Ultraviolet rays are used to irrad...
Example
[0037] Embodiments 2 to 5: a method for preparing matte release paper
[0038] 1. The method is the same as the second embodiment.
[0039] 2. The relevant materials used in Examples 2 to 5 are as follows:
[0040] (1) The material of the coating layer: embodiment three, polyvinyl chloride; embodiment four, polyethylene terephthalate; embodiment five, polyethylene; embodiment six, polypropylene.
[0041] (2) Film layer: embodiment three, polypropylene film; embodiment four, polyethylene film; embodiment five, cast polypropylene film; embodiment six polyethylene terephthalate film.
[0042] 3. The formula of the matte coating agent is shown in Table 1.
[0043] Table 1
[0044] Example one Example two Example three Example four Example five Matte additives 4% 5% 2% 2.5% 6% Multifunctional acrylate monomer 34.5% 30% 43% 45% 44.3% Initiator 0.2% 0.5% 0.7% 1% 0.7% Solvent 61.3% 64.5% 54.3% 51.5% 49%
[0045] Note: In Table 1:
[0046] 1. Matte surface additives: Example 1. Magnesium ...
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Abstract
The invention relates to a preparation method of novel cloudy-surface release paper, which comprises the following steps that: a film-coated layer is coated on one side surface of a base release paper, a cementing compound layer is coated on the other side surface of the base release paper after being cooled to obtain a substrate layer to standby use; a layer of cloudy-surface coating agent with the thickness of 0.2 micrometer to 2 micrometers is coated on the surface of a film layer; the cloudy-surface coating agent is radiated by ultraviolet rays to obtain a cloudy-surface coating, and then a layer of mold release agent is coated on the surface of the cloudy-surface coating to obtain a cloudy-surface release layer for standby use; and the cloudy-surface release layer is bonded with the substrate layer. Sine the polyester cloudy-surface coating is firstly coated on the surface of the film layer, a plurality of convex-concave structures are obtained on the surface of the film layer after being processed; and then the silicon release agent coating is coated on the surface of the cloudy-surface coating, the bottom surface of the silicon release agent coating at a liquid state penetrates into concaves on the surface of the polyester cloudy-surface coating and the silicon release agent coating is fixedly connected with the polyester cloudy-surface coating through the concaves after being solidified, so the bonding force is firmer and more reliable.
Description
technical field [0001] The invention relates to a preparation method of a novel matte release paper, in particular to a preparation method of a novel matte release paper with high adhesion and adjustable peeling force. Background technique [0002] Release paper, also known as release paper and anti-adhesive paper, is mainly used to stick the adhesive layer on the surface of the tape to protect the surface of the tape. The existing release paper is generally coated with a film layer (the material used is mainly polyethylene) on the surface of the bottom paper layer of the release paper, and then coated with a layer of release agent on the surface of the film layer ( The material used is mainly silicone oil) to obtain release paper. However, due to the high flatness of the coating layer and the poor adhesion between the release agent coating and the coating layer, when the release paper is attached to the film coated with a high-viscosity adhesive, it is easy to cause cracks...
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