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Waterborne transfer coating for disposable destructive anti-counterfeit label

A technology of anti-counterfeiting labels and transfer coatings, which is applied in the direction of polyester coatings, polyurea/polyurethane coatings, coatings, etc., which can solve the problems of not meeting environmental protection requirements and achieve good edge cutting effect

Active Publication Date: 2019-04-26
SHANGHAI CHENGYING NEW MATERIALS +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the coatings currently used in the market for one-time destruction of anti-counterfeiting labels are mainly oily coatings, which do not meet environmental protection requirements

Method used

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  • Waterborne transfer coating for disposable destructive anti-counterfeit label
  • Waterborne transfer coating for disposable destructive anti-counterfeit label
  • Waterborne transfer coating for disposable destructive anti-counterfeit label

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment relates to a water-based transfer coating that destroys the anti-counterfeiting label at one time, and the coating adopts the components and contents in Table 1 as raw materials:

[0029] Table 1

[0030] Styrene-acrylate copolymer emulsion

5

Polyester Polyurethane Emulsion

20

polyester

7

Silica sol

8

Ethanol: water (mass ratio 2:1)

60

Polyether modified silicone wetting agent

0.2

Polyether modified silicone defoamer

0.2

[0031] The preparation method of this coating is as follows:

[0032] First mix styrene-acrylic polyester emulsion with polyester polyurethane emulsion and polyester, stir at 300r / min for 10min to fully mix, add silica sol and stir for 5min, then add solvent (ethanol: water 2:1) to dilute, and stir for 5min , then add wetting agent and defoamer in turn, stir at 500r / min for 10min respectively, and discharge.

Embodiment 2

[0034] This embodiment relates to a water-based transfer paint that destroys the anti-counterfeit label at one time. Its preparation method is the same as in Example 1. The paint is made from the components and contents in Table 2:

[0035] Table 2

[0036] Styrene-acrylate copolymer emulsion

Embodiment 3

[0038] This embodiment relates to a water-based transfer paint that destroys the anti-counterfeit label at one time. Its preparation method is the same as that in Example 1. The paint is made from the components and contents in Table 3:

[0039] table 3

[0040] Styrene-acrylate copolymer emulsion

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Abstract

The invention discloses a waterborne transfer coating for a disposable destructive anti-counterfeit label. The coating is prepared from components in parts by weight as follows: 2-10 parts of a styrene-acrylate copolymer emulsion, 15-30 parts of a polyester polyurethane emulsion, 1-10 parts of polyester, 3-10 parts of silica sol, 30-60 parts of a solvent, 0-0.2 parts of a wetting agent and 0-0.2 parts of a defoaming agent. According to the coating, polyester polyurethane is taken as a basic transferable stripping part, temperature resistance is improved by adding silica sol, so that certain die pressing temperature is reached, good edge trimming is guaranteed, and tailing is avoided; die pressing brightness is improved by adding a small quantity of the styrene-acrylate copolymer emulsion,and stripping force and membrane rupture force are improved by adding polyester. Therefore, the waterborne coating has certain stripping strength, good edge trimming property and high transparency, isresistant to temperature higher than 110 DEG C, has low VOC (volatile organic compound) residues and total residual content lower than 1 mg and meets the environmental requirement.

Description

technical field [0001] The invention relates to the field of transfer coatings, in particular to a water-based transfer coating for destroying anti-counterfeit labels at one time. Background technique [0002] Anti-counterfeiting labels are widely used in wine, auto parts, medicine, light industry, electrical and other industries. One-time destructible anti-counterfeiting label is a kind of anti-counterfeiting label. Once this kind of label is uncovered, it will be destroyed and cannot be used again. The surface of the anti-counterfeiting label can be destroyed at one time, and information such as the company name, product logo, product authenticity query method can be printed, and there is no anti-counterfeiting code on the surface of the label. Features of this label: 1. The one-time destruction anti-counterfeiting label has the characteristics of being damaged once it is peeled off, and the label is difficult to be transferred and used. 2. The anti-counterfeiting code t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D125/14C09D167/00C09D5/20C09D7/61
CPCC08L2205/03C09D5/20C09D175/06C09D7/61C08L25/14C08L67/00C08K3/36
Inventor 董海普李珊戴胜杰
Owner SHANGHAI CHENGYING NEW MATERIALS
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