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Holographic laser cold-turning gold stamping transfer coating composition and preparation method thereof

A technology for transferring paint and composition, applied in the field of holographic laser cold transfer bronzing transfer paint composition and preparation thereof, can solve the problems of complex resin system, poor process operability, difficult product quality control, etc., and achieve advanced technology. excellent transfer performance, good printing adaptability

Inactive Publication Date: 2012-08-22
SHANGHAI WEIKAI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] After searching the literature of the prior art, it is found that the Chinese patent with the patent publication number of CN 101693793A discloses a preparation method of cold transfer coating for flexo printing. This formula cannot realize the transfer of holographic laser information and cannot achieve high-end anti-counterfeiting The technical requirements can only meet the technical requirements of ordinary packaging hot stamping, and its resin system is complex, the preparation process is cumbersome, the product viscosity is high, it is not suitable for large-scale production, the product quality is difficult to control, and the operability of the process is not strong, resulting in high production costs. , and seriously affect the product yield

Method used

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  • Holographic laser cold-turning gold stamping transfer coating composition and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The preparation of the holographic laser cold transfer bronzing transfer coating composition of the present embodiment comprises the following steps:

[0052] (1) Prepare raw materials according to the components and parts by weight shown in Table 1:

[0053] (2) first place the solvent in the reaction kettle, open the stirring device, and mix evenly;

[0054] (3) Put the resin components (polyacrylate resin, low molecular weight modified polyacrylate resin and cellulose ester resin) into the reactor, control the stirring rate to 100rpm, and stir for 1h to fully dissolve the resin components;

[0055] (4) After the resin component is completely dissolved, put the additives into the reaction kettle, control the stirring rate to 150rpm, stir for 30min until the additives are fully dispersed and evenly, and filter to obtain the final product.

[0056] In this embodiment, the polyacrylate resin is a copolymer with a molecular weight of 50,000 to 90,000 polymerized from methy...

Embodiment 2

[0059] The preparation of the holographic laser cold transfer bronzing transfer coating composition of the present embodiment is the same as that of Example 1, the difference is that: in the step (3), the stirring rate is 200rpm, and the stirring time is 5h; in the step (4), the stirring rate is 100rpm , stirring time is 10min.

[0060] In this embodiment, the polyacrylate resin is a homopolymer with a molecular weight of 90,000 to 130,000 polymerized from methyl methacrylate and butyl methacrylate monomers; the low molecular weight modified polyacrylate resin It is an acrylic resin amine methacrylate with a molecular weight of 0.3-0.5 million; the molecular weight of the cellulose ester resin is 28,000-40,000.

[0061] In Example 2, because the functional coating contains functional acrylic resin amine methacrylate, while ensuring transfer and trimming performance, it has excellent adhesion fastness to vacuum aluminum plating, higher molding brightness and better laser effect...

Embodiment 3

[0063] The preparation of the holographic laser cold transfer bronzing transfer coating composition of the present embodiment is the same as that of Example 1, the difference is that the stirring speed is 150rpm in the step (3), and the stirring time is 3h; the stirring speed in the step (4) is 120rpm , stirring time is 20min.

[0064] In this embodiment, the polyacrylate resin is a copolymer with a molecular weight of 130,000 to 180,000 polymerized from methyl methacrylate, methyl acrylate, ethyl acrylate, and butyl acrylate; The non-toxic polyacrylate resin is a copolymer with a molecular weight of 0.5-0.7 million, which is formed by polymerizing hydroxypropyl acrylate and acrylic resin monomers; the molecular weight of the cellulose ester resin is 40,000-48,000.

[0065] In Example 3, because the molecular weight of the main resin is relatively high, the functional coating in Example 3 ensures good trimming performance as a whole after being combined with low molecular weig...

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Abstract

The invention discloses a holographic laser cold-turning gold stamping transfer coating composition and a preparation method thereof. The coating composition comprises the components in parts by weight: 4-15 parts of polyacrylate resin, 2-8 parts of low molecular weight modified polyacrylate resin, 1-15 parts of cellulose ester resin, 0.1-0.5 part of auxiliary agent and 60-92 parts of solvent. The preparation method comprises the steps of: putting the solvent into a reaction kettle, stirring and evenly mixing; putting the polyacrylate resin, the low molecular weight modified polyacrylate resin and the cellulose ester resin into the reaction kettle, and stirring until the resins are completely dissolved; then, adding the auxiliary agent, and stirring until the mixture is evenly dispersed; and filtering to obtain the coating. Compared with the prior art, in the preparation method disclosed by the invention, the general polymethyl acrylic resin and the low molecular weight functional polyacrylate resin are utilized to be matched so that the cold-turning gold stamping coating with good transfer performance and excellent edge cutting performance can be obtained; the composition is low in production cost and good in printing adaptability, and can realize holographic anti-counterfeiting information transfer; and the product not only has appearance with bright colors, but also has high-end anti-counterfeiting function.

Description

technical field [0001] The invention relates to a cold-transfer bronzing transfer coating and a preparation method thereof, in particular to a holographic laser cold-transfer bronzing transfer coating composition and a preparation method thereof. Background technique [0002] At present, in the packaging industry, laser hot stamping printing has become one of the must-choice solutions for high-end commodity packaging. It can be seen on the packaging of cosmetics. However, as the packaging industry continues to innovate and pursues more personalized needs, it is gradually giving birth to rapid changes in the packaging industry. However, the traditional hot stamping process is slow and complicated due to its hot stamping speed, and the edge of the image is affected by the hot stamping template and process. Restrictions cannot meet the more refined effect, and hot stamping is easily affected by the fluctuation of the heating and pressure conditions of the metal stamping plate,...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D101/12C09D101/10C09D101/18
Inventor 虞明东丁万强
Owner SHANGHAI WEIKAI CHEM
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