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Paint for packing anti-counterfeit paper and preparation method thereof

An anti-counterfeiting paper and coating technology, applied in the direction of specific visual effect coating, etc., can solve the problems of high requirements on construction machines and construction environment, poor holographic pattern reproducibility, poor printing adaptability, etc., to achieve strong light visual effect, good reproduction effect, Easy construction effect

Inactive Publication Date: 2009-11-04
ZHEJIANG YAXIN PAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing coatings for packaging anti-counterfeiting paper have the defects of poor reproducibility of holographic patterns, poor printing adaptability (not suitable for various printing processes), and high requirements for construction machines and construction environments.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing a coating for packaging anti-counterfeiting paper, the method comprising the following process steps:

[0022] (1) First put all the solvents, namely 42 kg of ethyl acetate and 40 kg of methyl ethyl ketone into the reaction kettle, and heat to about 40°C for stirring;

[0023] (2) Keep stirring and put 10 kilograms of cellulose acetate butyrate resin and 6 kilograms of acrylic resin into the reaction kettle successively, and stir for about 1 hour;

[0024] (3) After mixing evenly, slowly put 2 kg of rosin resin into the reaction kettle; when no rosin resin is added, there will be no problem with commonly used offset printing, and gravure and flexographic printing may have poor ink adhesion It appears that the addition of rosin resin can improve the adhesion of the ink, so its printing application range is wide;

[0025] (4) When all the solids are dissolved and mixed evenly, shut down and mature for more than 12 hours;

[0026] (5) Measure the s...

Embodiment 2

[0030] A method for preparing a coating for packaging anti-counterfeiting paper, the method comprising the following process steps:

[0031] (1) First put all the solvents, namely 42 kg of ethyl acetate and 40 kg of methyl ethyl ketone into the reaction kettle, and heat to about 40°C for stirring;

[0032] (2) Keep stirring and drop 8 kilograms of cellulose acetate butyrate resin and 4 kilograms of nitrocellulose into the reaction kettle successively, and stir for about 1 hour;

[0033] (3) Slowly drop 3 kilograms of acrylic resin into the reaction kettle after mixing evenly;

[0034] (4) When all the solids are dissolved and mixed evenly, shut down and mature for more than 12 hours;

[0035] (5) Measure the solid content and adjust to the theoretical value;

[0036] (6) Stir slowly for about 1 hour, cool down, weigh and pack.

Embodiment 3

[0038] A method for preparing a coating for packaging anti-counterfeiting paper, the method comprising the following process steps:

[0039] (1) First put all the solvents, namely 42 kg of ethyl acetate and 40 kg of methyl ethyl ketone into the reaction kettle, and heat to about 40°C for stirring;

[0040] (2) Keep stirring and put 12 kilograms of cellulose acetate butyrate resin, 2 kilograms of nitrocellulose, and 3 kilograms of acrylic resin into the reaction kettle in turn, and stir for about 1 hour;

[0041] (3) Slowly drop 1 kilogram of rosin resin into the reaction kettle after mixing evenly;

[0042] (4) When all the solids are dissolved and mixed evenly, shut down and mature for more than 12 hours;

[0043] (5) Measure the solid content and adjust to the theoretical value;

[0044] (6) Stir slowly for about 1 hour, cool down, weigh and pack.

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PUM

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Abstract

The invention discloses a paint for packing anti-counterfeit paper and a preparation technique thereof. The paint comprises the following components with mass proportion: 8 to 12 portions of cellulose acetate butyrate resin, 6 to 8 portions of additive resin and 82 to 90 portions of solvent. The invention has good reappearance effect of holographic patterns, clear holographic pattern details and strong radial visual effect, thus reappearing that the anti-counterfeit patterns on a holographic plate transfer onto the paper and achieving the anti-counterfeit purpose; the printing application range is wide, so various printing modes and techniques can be used; and the paint is easy to construct and has low requirements to the construction machinery and construction environment and belongs to the general-purpose product.

Description

【Technical field】 [0001] The invention relates to a coating formula used on packaging anti-counterfeiting paper and a preparation method thereof. 【technical background】 [0002] Packaging anti-counterfeiting (holographic) paper coating, which uses polyester film as the base film, is coated on the base film, and forms a resin layer after drying. After holographic molding, the required holographic pattern is formed, which is transferred to the paper after aluminum plating, so that the required holographic pattern is transferred to the packaging paper, so that the packaging paper can achieve the effect of beauty and anti-counterfeiting. This kind of paper is mainly used in the fields of tobacco, alcohol, medicine, cosmetics, luxury goods, daily chemical products and other products. [0003] The coating of the existing packaging anti-counterfeiting paper has the defects of poor reproducibility of holographic patterns, poor printing adaptability (not suitable for various printin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/66
Inventor 陈志平吴国保杨峰刘兵华晓东
Owner ZHEJIANG YAXIN PAPER IND
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