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Flexo printing water-based varnish and preparation method thereof

A water-based varnish and flexographic printing technology, which is applied in the fields of textiles and papermaking, fiber raw material processing, paper coating, etc., can solve problems such as the need to improve wear resistance, slow drying speed of water-based varnish, unstable product size, etc., to achieve Excellent abrasion resistance and fast drying effect

Active Publication Date: 2012-05-09
广东佳景科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the drying speed of the existing water-based varnish is slow, and it is easy to cause process failures such as unstable product dimensions when used, and the wear resistance needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A water-based varnish for flexographic printing, which is composed of the following raw materials in parts by weight: 25 parts of styrene-acrylic resin, 35 parts of pure acrylic emulsion, 29 parts of styrene-acrylic emulsion, 0.4 part of defoamer, 2 parts of leveling agent, wetting 1 part of agent, 2.6 parts of thickener, 5 parts of deionized water. The glass transition temperature of styrene-acrylic resin is 101°C, and the acid value is 210; the defoamer is Digo 805 defoamer; the leveling agent is Xiaofan 104E leveling agent; the wetting agent is Huntsman OT-75 agent; the thickener is Akzo-Nobel PU-2015 thickener.

[0058] A preparation method for flexographic printing water-based varnish, which comprises the following preparation steps:

[0059] (a) Add pure acrylic emulsion, styrene-acrylic emulsion, defoamer, leveling agent, and wetting agent into the container according to the above weight parts, and stir well and evenly.

[0060] (b) Add styrene-acrylic resin wh...

Embodiment 2

[0063] A water-based varnish for flexographic printing, which consists of the following raw materials in parts by weight: 20 parts of styrene-acrylic resin, 30 parts of pure acrylic emulsion, 25 parts of styrene-acrylic emulsion, 0.1 part of defoamer, 1 part of leveling agent, wetting 0.5 parts of agent, 1 part of thickener, 3 parts of deionized water. The glass transition temperature of styrene-acrylic resin is 101°C, and the acid value is 210; the defoamer is TEGO-825 defoamer; the leveling agent is MODAFLOW AQ3000 leveling agent; the wetting agent is ADDITOL XL 6521 wetting agent; The agent is TAFIGEL PUR42 thickener.

[0064] A preparation method for flexographic printing water-based varnish, which comprises the following preparation steps:

[0065] (a) Add pure acrylic emulsion, styrene-acrylic emulsion, defoamer, leveling agent, and wetting agent into the container according to the above weight parts, and stir well and evenly.

[0066] (b) Add styrene-acrylic resin while...

Embodiment 3

[0069] A flexographic printing water-based varnish, which is composed of the following raw materials in parts by weight: 30 parts of styrene-acrylic resin, 40 parts of pure acrylic emulsion, 33 parts of styrene-acrylic emulsion, 0.5 parts of defoamer, 5 parts of leveling agent, wetting 1.5 parts of agent, 5 parts of thickener, 8 parts of deionized water. The glass transition temperature of styrene-acrylic resin is 101°C, and the acid value is 210; the defoamer is Lubrizol 387 defoamer; the leveling agent is TROYSOL LAC leveling agent; the wetting agent is Shanghai Zhongcheng WDF-104 wetting agent ; The thickener is TAFIGEL PUR42 thickener.

[0070] A preparation method for flexographic printing water-based varnish, which comprises the following preparation steps:

[0071] (a) Add pure acrylic emulsion, styrene-acrylic emulsion, defoamer, leveling agent, and wetting agent into the container according to the above weight parts, and stir well and evenly.

[0072] (b) Add styren...

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Abstract

The invention belongs to the technical field of water-based varnish, and relates to flexo printing water-based varnish and a preparation method thereof. The flexo printing water-based varnish consists of the following raw materials in part by weight: 20 to 30 parts of styrene-acrylic resin, 30 to 40 parts of pure acrylic emulsion, 25 to 33 percent of styrene-acrylic emulsion, 0.1 to 0.5 part of antifoaming agent, 1 to 5 parts of leveling agent, 0.5 to 1.5 parts of wetting agent, 1 to 5 parts of thickening agent and 3 to 8 parts of deionized water. The flexo printing water-based varnish has the characteristics of high wear resistance and drying rate, and is safe and environmental-friendly; and the preparation method of the flexo printing water-based varnish is easy to operate, reduces production cost and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of water-based varnish, in particular to a flexographic printing water-based varnish and a preparation method thereof. Background technique [0002] When preparing varnish paper, varnish is needed. Solvent-based varnish has a long history of production, but solvent-based varnish is toxic, irritating, and volatile, which pollutes the environment and endangers the health of operators. Water-based varnish is colorless, odorless, and free of organic volatiles. It has the advantages of environmental protection, safety, low cost, and wide source of materials. As an emerging green and environmentally friendly printing material, water-based varnish is gradually replacing solvent-based varnish. [0003] However, the drying speed of the existing water-based varnish is relatively slow, and it is easy to cause process failures such as unstable product dimensions during use, and the wear resistance needs to be improved....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/20D21H21/14
Inventor 陈健强
Owner 广东佳景科技股份有限公司