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Coating capable of repetitively copying and transferring molding grating pattern and template film including the same

A technology of grating pattern and coating, which is applied in coating, transfer ink from manuscript, process for producing decorative surface effects, 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: 2009-07-15
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

[0023] 1. Preparation of modified acrylic resin

[0024] Add 250kg of xylene and 250kg of butyl ester into the reaction kettle, mix well, add 50kg of E-44 bisphenol epoxy resin to dissolve it completely, raise the temperature of the solution to 125°C and reflux the system, and add 150kg of acrylic acid evenly dropwise after 5 minutes Butyl ester, 260kg methyl methacrylate, 84kg hydroxyethyl acrylate, 20kg acrylic acid, 6kg benzoyl peroxide mixed solution, the whole process takes about 2-3.5h, after the dropwise addition is completed, keep the temperature of the reactor at 126±2°C, keep warm for 2 hours, then add 1.5kg of benzoyl peroxide, continue to keep warm for 2 hours, then 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%, which was set aside.

[0025] 2. Preparation of template film

[0026] 40kg of modif...

Embodiment 2

[0028] 1. Preparation of modified acrylic resin

[0029] Add 250kg of xylene and 50kg of butyl ester into the reaction kettle, mix well, add 80kg of EPON1001 bisphenol epoxy resin to dissolve it completely, raise the temperature of the solution to 125°C and reflux the system, and add 130kg of butyl acrylate dropwise evenly after 5 minutes , 230kg methyl methacrylate, 60kg hydroxyethyl acrylate, 15kg acrylic acid, 6kg benzoyl peroxide mixture, the whole process takes about 2-3.5h, after the dropwise addition, keep the temperature of the reactor at 126± 2°C, keep warm for 2 hours, then add 1.5kg of benzoyl peroxide, continue to keep warm for 2 hours, then lower the temperature to 40°C, add 50kg of hydroxyl-containing polydimethylsiloxane resin, stir well, filter Discharging to obtain a modified acrylic resin with a solid content of 55% and a hydroxyl value of 2.5%, which is set aside.

[0030] 2. Preparation of template film

[0031] With above-mentioned modified acrylic resin...

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PUM

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Abstract

The invention provides a coating which can repeatedly reproduce and transfer grating patterns obtained by mould pressing to the surface of a printing stock. The coating comprises the weight components: 30-40% of modified acrylic resin, 10-25% of firming agent, 0.15-0.5% of catalyzer and 40-55% of solvent; wherein, the modified acrylic resin comprises acrylic resin or DHMP, acylic acid hydroxy ester, epoxide resin, organic silicon resin containing hydroxide radical, evocating agent and solvent. The coating has suitable mould pressing strength, good surface compactness, difficult permeable solvent and low surface tension, still has clear grating pattern after mould pressing in the situation of repeated peeling. The invention also provides a template membrane which can repeatedly reproduce and transfer the grating patterns obtained by mould pressing; the template membrane comprises a base membrane and the coating fixedly overlaid on the base membrane. The coating forms the grating patterns by mould pressing. The template membrane can continuously reproduce the grating patterns to the printing stocks such as papers or plastic glass and the like by only a primary mould pressing by releasing layers or adhesive layers, thus saving working procedures and greatly reducing production costs.

Description

technical field [0001] The present invention relates to a coating, in particular to a coating used for embossing to generate a grating pattern in a laser transfer aluminized film, and more particularly to a coating that can repeatedly transfer the embossed grating pattern to the surface of a substrate coating. The invention also relates to a stencil film comprising the above coating, 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 gorgeous laser decoration effect. The production method of the existing 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 the molded layer with aluminum, and finally coat the aluminum-coated layer with glue. sticky layer. After the laser transfer aluminize...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D133/10B44C1/165B41M5/03
Inventor 杨开平
Owner 汕头市龙湖昌丰化工有限公司
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