Anti-bending waterborne transfer coating and preparation method thereof

A transfer coating, anti-bending technology, applied in the field of coatings, can solve the problems of pollution, ink breakage, and the transfer coating is not resistant to bending, so as to improve the bending resistance, improve the bending performance, and overcome the bending resistance Effect

Active Publication Date: 2018-07-27
SHANGHAI WEIKAI CHEM +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Transfer coatings are widely used in the field of tobacco packaging. They are used to transfer the aluminized layer to achieve the metallic silver effect of the outer packaging, and to undertake the printing layer to display fine printing patterns to achieve anti-counterfeiting functions. At present, the transfer coatings are mainly solvent-based coatings. , contains a large amount of volatile organic compounds (VOCs). At the same time, after the coating is transferred to the paper, the paper needs to go through multiple processes in the subsequent printing and smoking process, an

Method used

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  • Anti-bending waterborne transfer coating and preparation method thereof
  • Anti-bending waterborne transfer coating and preparation method thereof
  • Anti-bending waterborne transfer coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment relates to a kind of anti-bending water-based transfer coating, comprising each component of following weight percentage content:

[0030]

[0031] The preparation method of the present embodiment water-based transfer coating comprises:

[0032] Add water-based polyurethane emulsion to deionized water, add Foamex830 and Wet240, stir at 800rpm for 30 minutes, then add carbodiimide, stir at 500rpm for 5 minutes, and filter through a 320-mesh filter to obtain the desired emulsion paint.

[0033] The water-based transfer coating prepared by the above formula is coated with aluminum and transferred to cardboard by roller coating process. The folding resistance can be up to 10 times according to the front and back folding test at 180°C without coating breakage.

Embodiment 2

[0035] This embodiment relates to a kind of anti-bending water-based transfer coating, comprising each component of following weight percentage content:

[0036]

[0037]

[0038] The preparation method of the water-based transfer coating of this embodiment is consistent with that of Embodiment 1.

[0039] The water-based transfer coating prepared by the above formula is coated with aluminum and transferred to the cardboard by the roller coating process. The folding resistance can be up to 20 times according to the front and back folding test at 180°C without coating breakage.

Embodiment 3

[0041] This embodiment relates to a kind of anti-bending water-based transfer coating, comprising each component of following weight percentage content:

[0042]

[0043] The preparation method of the water-based transfer coating of this embodiment is consistent with that of Embodiment 1.

[0044] The water-based transfer coating prepared through the above formula, the water-based transfer coating prepared through the above formula, is coated with aluminum plating and transferred to the cardboard by the roller coating process, and the folding resistance can reach 40 times according to the front and back 180°C test. Coating cracking phenomenon.

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Abstract

The invention provides an anti-bending waterborne transfer coating and a preparation method thereof. The coating is prepared from the following components in parts by weight: 15-30 parts of waterbornepolyurethane emulsion, 0.5-1 part of a cross-linking agent, 69-84 parts of deionized water and 0.5-1 part of an aid, wherein the waterborne polyurethane emulsion is synthesized from IPDI and polycarbonate polyol. The problem of irresistance to bending commonly existing in the existing transfer coating is effectively solved, bending performance of transfer paper during printing and cigarette wrapping is improved, and paper or printing bursting can be avoided. The waterborne transfer coating is environmentally friendly due to adoption of a waterborne resin system and the absence of any volatileorganic solvents.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an anti-bending water-based transfer coating and a preparation method thereof. Background technique [0002] Transfer coatings are widely used in the field of tobacco packaging. They are used to transfer the aluminized layer to achieve the metallic silver effect of the outer packaging, and to undertake the printing layer to display fine printing patterns to achieve anti-counterfeiting functions. At present, the transfer coatings are mainly solvent-based coatings. , contains a large amount of volatile organic compounds (VOCs). At the same time, after the coating is transferred to the paper, the paper needs to go through multiple processes in the subsequent printing and smoking process, and there are multiple bending situations. Usually, in this case, The printing surface of the packaging cardboard will break the ink and cause the leakage of the bottom paper, which will affect the...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/20C09D7/63
CPCC09D175/04
Inventor 董海普夏炳忠谢允斌
Owner SHANGHAI WEIKAI CHEM
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