High-flexibility water varnish suitable for UV (Ultraviolet) curable offset printing and preparation method of water varnish

A flexible and water-based technology, applied in the field of high-flexibility water-based varnish and its preparation, it can solve the problems of scrapped printed matter, restricted application of water-based varnish, and UV ink bursting, etc., and achieves good adhesion, excellent interlayer adhesion, and low VOC. The effect of emissions

Active Publication Date: 2017-06-13
广东博海化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Ordinary water-based varnishes are generally made relatively hard due to the heat resistance of the paint film. Therefore, when the printed matter requires folding, embossing, and embossing, it is easy to burst the UV ink, resulting in the scrapping of the printed matter, which restricts the water-based varnish. Applications
[0008] For the existing water-based varnish, after printing UV offset printing ink, the UV ink bursting occurs when the paper is folded, embossed, and embossed. It is necessary to develop a highly flexible water-based varnish suitable for UV offset ink printing.

Method used

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  • High-flexibility water varnish suitable for UV (Ultraviolet) curable offset printing and preparation method of water varnish
  • High-flexibility water varnish suitable for UV (Ultraviolet) curable offset printing and preparation method of water varnish
  • High-flexibility water varnish suitable for UV (Ultraviolet) curable offset printing and preparation method of water varnish

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with specific embodiment:

[0034] Each component of embodiment 1~5 is composed as shown in table 1 by weight percentage:

[0035] Table 1:

[0036]

[0037]

[0038] The preparation method of the highly flexible water-based varnish of embodiment 1~5:

[0039] 1) Configure component A: Add pure acrylic emulsion, acrylic modified water-based polyurethane emulsion, and self-crosslinking acrylic dispersant to the dispersion tank according to the formula ratio, and stir at 200 rpm for 15 minutes.

[0040] 2) Configure component B: add deionized water, alcohol solvent, and water-based additives into the mixing tank according to the proportion, and stir at 300 rpm for 15 minutes.

[0041] 3) Mixing: Pump the uniformly stirred component B into the dispersion tank, mix with component A, and stir at 200 rpm for 15 minutes.

[0042] 4) Filtration and purification packaging: remove impurities through fil...

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Abstract

The invention discloses high-flexibility water varnish suitable for UV curable offset printing. According to key points of the technical scheme, the water varnish is composed of the following components by weight percent: 10-20% of pure acrylic emulsion, 5-15% of acrylic-modified aqueous polyurethane emulsion, 35-55% of a self-crosslinked acrylic dispersing agent, 10-25% of water, 10-25% of an alcohol solvent and 0.1-5% of waterborne additives. The invention provides the high-flexibility water varnish suitable for UV curable offset printing. The invention further provides a method for preparing the high-flexibility water varnish suitable for UV curable offset printing.

Description

[0001] 【Technical field】 [0002] The invention relates to a highly flexible water-based varnish suitable for UV offset printing and a preparation method thereof, belonging to the technical field of resin coatings. [0003] 【Background technique】 [0004] In the fields of packaging cardboard printing such as cigarette packaging, wine box packaging, food packaging, pharmaceutical packaging, and cosmetic packaging, the cardboard used is usually made of composite cardboard by attaching aluminum foil and aluminized film to the surface of various cardboards; In order to improve the quality and application fields of composite cardboard, improve the printing adaptability of composite cardboard and protect aluminum atoms from being oxidized and discolored, a layer of varnish is generally coated on the surface of aluminum foil and aluminized film. [0005] In recent years, since the main diluents in the production and preparation of water-based varnishes are water and ethanol, the produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D151/08C09D133/00C09D7/00
CPCC08L2205/02C08L2205/035C09D7/20C09D133/04C08L33/00C08L51/08
Inventor 余桂强褚波
Owner 广东博海化工科技有限公司
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