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A kind of laser anti-counterfeiting coating and its preparation method, laser transfer film and its preparation method

A technology of laser anti-counterfeiting and laser transfer, which is applied in the direction of coating, sputtering plating, metal material coating technology, etc., and can solve the problems of producers' health threats, strong concentration, and consumer threats, etc.

Active Publication Date: 2019-06-14
常德市德源招商投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of producing and coating the above-mentioned ketone-containing laser anti-counterfeiting coating, its strong pungent odor and toxicity will cause potential health threats to producers, and the residual volatile organic compounds VOC will also cause potential health threats to consumers. threaten

Method used

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  • A kind of laser anti-counterfeiting coating and its preparation method, laser transfer film and its preparation method
  • A kind of laser anti-counterfeiting coating and its preparation method, laser transfer film and its preparation method
  • A kind of laser anti-counterfeiting coating and its preparation method, laser transfer film and its preparation method

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preparation example Construction

[0035] The present invention provides a preparation method of the laser anti-counterfeiting coating described in the above technical solution, comprising the following steps:

[0036] Ethyl acetate, n-propyl acetate, propylene glycol methyl ether, butyl acetate, cellulose compound and acrylate homopolymer are mixed and heated to obtain a laser anti-counterfeiting coating.

[0037] In the present invention, the kind, consumption and source of said ethyl acetate, n-propyl acetate, propylene glycol methyl ether, butyl acetate, cellulosic compound and acrylate homopolymer are the same as those of ethyl acetate, The types, amounts and sources of n-propyl acetate, propylene glycol methyl ether, butyl acetate, cellulosic compounds and acrylate homopolymers are the same and will not be repeated here.

[0038] In the present invention, the heating method preferably adopts circulating water heating of coiled pipelines. The present invention can not only reduce energy consumption and re...

Embodiment 1

[0058] 40kg ethyl acetate, 20kg n-propyl acetate, 3kg propylene glycol methyl ether, 1kg butyl acetate, 10kg acetate-propionate cellulose and 12kg polymethyl methacrylate homopolymer were mixed, the acetate-propionate cellulose The softening point of polymethyl methacrylate is 155-165°C, and the softening point of polymethyl methacrylate is 160°C; the circulating hot water in the coiled pipe is used to heat the wall of the container, so that the temperature of the paint is kept at 45°C, and the speed of the mixer is 1400r / min. The stirring time is 3h, and the laser anti-counterfeiting coating is obtained;

[0059] The viscosity of described laser anti-counterfeit coating is to be coated with 3# cup 18s;

[0060] Coat the above-mentioned paint on the PET base film at a machine speed of 110m / min, and then dry it in an oven at 75°C, 105°C, 135°C, 120°C and 110°C, and the dry coating amount of the paint is 1.2 g / m 2 Carry out molding after drying, the temperature of molding is 1...

Embodiment 2

[0067] 45kg of ethyl acetate, 23kg of n-propyl acetate, 5kg of propylene glycol methyl ether, 2kg of butyl acetate, 8kg of cellulose acetate-butyrate and 10kg of polymethyl methacrylate homopolymer are mixed, and the cellulose acetate-butyrate The softening point of polymethyl methacrylate is 170-180°C, and the softening point of polymethyl methacrylate is 178°C; the circulating hot water of the coiled pipe is used to heat the wall of the container, so that the temperature of the paint is kept at 43°C, and the speed of the mixer is 1500r / min. The stirring time is 2.5h to obtain the laser anti-counterfeiting coating;

[0068] The viscosity of described laser anti-counterfeiting coating is to be coated with 3# cup 20s;

[0069] Coat the above-mentioned paint on the PET base film at a machine speed of 100m / min, and then dry it in an oven at 73°C, 109°C, 137°C, 122°C and 113°C, and the dry coating amount of the paint is 1.15 g / m 2 Carry out molding after drying, the temperature ...

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Abstract

The invention provides laser anti-fake paint, a preparation method thereof, and a laser transfer membrane and a preparation method thereof. The paint comprises the following compositions in parts by weight: 40-45 parts of ethyl acetate, 20-25 parts of n-propyl acetate, 3-5 parts of methyl proxitol, 1-2 parts of butyl acetate, 8-10 parts of cellulosic compounds, and 10-12 parts of an acrylate homopolymer. The softening point of cellulosic compounds is 140 DEG C-185 DEG C, and the softening point of the acrylate homopolymer is 140 DEG C-185 DEG C. The paint employs ethyl acetate, n-propyl acetate, methyl proxitol and butyl acetate as a mixed diluent, does not contain ketones, and is relatively friendly to environment. The paint has relatively good coating uniformity, and has relatively good transparency after being spread on the base-material layer. Experiment results show that the residual content of methyl proxitol, n-propyl acetate, n-butyl acetate and ethanol in a laser transfer membrane prepared through coating of the paint accord with index requirements.

Description

technical field [0001] The invention relates to the technical field of laser anti-counterfeiting coatings, in particular to a laser anti-counterfeiting coating and a preparation method thereof, a laser transfer film and a preparation method thereof. Background technique [0002] Laser transfer film is a brand-new process technology product developed in recent years with the requirements of the world's environmental protection. It not only has many functions such as decoration and anti-counterfeiting, but also has low cost and durability. It has gradually been widely recognized and applied in the packaging industry, such as Used as cosmetic packaging, cigarette packs, wine packs, gift box packaging, etc. The laser transfer film generally includes a substrate layer, a coating layer and an aluminum layer that are in contact with each other in sequence, and the coating layer is made by coating with a laser anti-counterfeiting coating. [0003] Among them, the laser anti-counter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/12C09D101/14C09D7/20C08J7/04C23C14/20C08L67/02
CPCC08J7/0427C08J2367/02C08J2401/14C08J2433/12C09D7/20C09D133/12C23C14/20C08L1/14
Inventor 余赞陆仕稳田璐
Owner 常德市德源招商投资有限公司
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