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A coating capable of repeating the transfer of molded grating patterns and a template film containing the coating

A technology of grating pattern and coating, which is applied in coating, transfer ink from manuscript, and process for producing decorative surface effect, etc., can solve the problem of easy deformation of grating pattern, lower production cost, large tensile deformation of PET film, etc. problems, to achieve the effects of excellent thermal deformation properties, lower production costs, and good solvent resistance

Inactive Publication Date: 2011-12-28
汕头市龙湖昌丰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the laser transfer aluminized film is transferred, the grating pattern is transferred to the substrate along with the release layer. When the peeled PET film is used again, it is necessary to repeat the same process of coating the release layer and molding, so that not only the processing time Long, and when molded, the PET film is stretched and deformed by high temperature, and cannot be reused many times, resulting in a lot of waste, which is not conducive to reducing production costs
Chinese patent application "Biaxially stretched polypropylene base film for laser imprint transfer and its manufacturing method", application number 02115421.X, proposes a BOPP base film that can be directly embossed, this base film not only Large-scale special film-making equipment is required, and BOPP film is not heat-resistant. During the evaporation and transfer process of the base film with grating pattern obtained by embossing, the grating pattern is easily deformed by heat. After several times of use, the obtained grating Patterns will be blurred and again cannot be used more than once

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Preparation of modified acrylic resin

[0023] Add 250kg of xylene and 250kg of butyl ester to the reaction kettle, mix homogeneously, add 50kg of E-44 bisphenol epoxy resin, make it completely dissolved, make the system reflux after the dissolving solution is heated to 125 ℃, and evenly add 150kg of acrylic acid dropwise after 5 minutes The mixed solution of butyl ester, 260kg methyl methacrylate, 84kg hydroxyethyl acrylate, 20kg acrylic acid, 6kg benzoyl peroxide, the whole process takes about 2-3.5h, after the dropwise addition is completed, the temperature of the reactor is kept at 126±2°C, hold for 2 hours, then add 1.5kg of benzoyl peroxide, continue to hold for 2 hours, lower the temperature to 40°C, add 25kg of hydroxyl-containing polydimethylsiloxane resin, stir well , filtered and discharged to obtain a modified acrylic resin with a solid content of 55% and a hydroxyl value of 3%, for use.

[0024] 2. Preparation of stencil film

[0025] With the above-me...

Embodiment 2

[0027] 1. Preparation of modified acrylic resin

[0028] Add 250kg of xylene and 50kg of butyl ester to the reaction kettle, mix well, add 80kg of EPON1001 bisphenol epoxy resin, make it completely dissolved, after the dissolving solution is heated to 125 ℃, the system is refluxed, and 130kg of butyl acrylate is uniformly added dropwise after 5 minutes. , the mixed solution of 230kg methyl methacrylate, 60kg hydroxyethyl acrylate, 15kg acrylic acid, 6kg benzoyl peroxide, the whole process takes about 2-3.5h, after the dropwise addition is completed, the temperature of the reactor is kept at 126± 2 ℃, keep the temperature for 2 hours, then add 1.5kg of benzoyl peroxide, continue to keep the temperature for 2 hours, lower the temperature to 40 ℃, add 50kg of hydroxyl-containing polydimethylsiloxane resin, stir evenly, filter The material was discharged to obtain a modified acrylic resin with a solid content of 55% and a hydroxyl value of 2.5%, which was used for later use.

[0...

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PUM

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Abstract

The invention provides a coating that can repeatedly transfer the grating pattern obtained by molding to the surface of the substrate. The coating includes a modified acrylic resin of 30-40% by weight, a curing agent of 10-25%, 0.15-0.5% catalyst and 40-55% solvent, wherein the modified acrylic resin includes acrylate or methacrylate monomer, hydroxy acrylate, epoxy resin, hydroxyl-containing silicone resin, initiator and solvent . The strength of the coating of the invention is suitable for molding, the surface is compact, the solvent is not easy to penetrate, the surface tension is low, and after molding, it can still have a clear grating pattern under the condition of repeated stripping. The present invention also provides a stencil film that can repeatedly transfer the grating pattern obtained by embossing. The stencil film includes a base film and the above-mentioned coating firmly laminated on the base film. The coating is molded to form a grating pattern. . The stencil film of the present invention only needs to be molded once, and the grating pattern can be continuously copied to substrates such as paper or plastic glass through the release layer or the adhesive layer, which not only saves the process, but also greatly reduces the production cost.

Description

technical field [0001] The invention relates to a coating, in particular to a coating used for molding a grating pattern in a laser transfer aluminized film, and more particularly to a coating that can repeatedly transfer the grating pattern obtained by molding to the surface of a substrate. coating. The present invention also relates to a stencil film comprising the above-mentioned coating and functioning as a stencil. Background technique [0002] Laser transfer aluminized film or aluminized paper is widely used in the decoration and anti-counterfeiting of cigarette packaging boxes and wine bottle stickers due to its high brightness and brilliant transformation of laser decorative effects. The existing manufacturing method of laser transfer aluminized film is to coat a release layer on the PET film, then mold the release layer to generate a grating pattern, then coat aluminum on the molded layer, and finally coat the aluminum coating with glue. sticky layer. After the l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/08C09D133/10B44C1/165B41M5/03
Inventor 胡俊
Owner 汕头市龙湖昌丰化工有限公司
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