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Water-based UV curable gravure varnish

An ultraviolet and water-based technology, applied in the printing field, can solve the problems of environmental protection, single printing and drying method, and poor physical properties such as friction resistance

Inactive Publication Date: 2011-12-14
SHENZHEN KECAI PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The varnish used in gravure printing usually has three types: solvent-based varnish, water-based varnish and UV varnish; the printing performance of these three varnishes has certain shortcomings: 1. The printing drying method is single; among them, solvent-based varnish And water-based varnish can only be cured by hot air drying, and UV varnish can only be cured by UV light
2. A large amount of chemical solvents are added to the solvent-based varnish, which volatilizes during the drying process, which is easy to cause environmental pollution, endanger human health, cause product odor, and is not environmentally friendly
And the gloss of solvent-based varnish after curing is not high, and the physical properties such as friction resistance are not good; 3. Water-based varnish is more environmentally friendly because the solvent uses water, but the gloss of water-based varnish after curing is not very high. Physical properties such as friction are not good
4. The main components of existing UV varnishes are prepolymers, monomers, photoinitiators, etc. During UV curing, chemical reactions occur between them to produce benzene substances and a large odor, which is not conducive to printing Environmentally friendly and not conducive to VOC control of cigarette packaging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1. A water-based UV-curable gravure varnish, made of the following raw materials in parts by weight: 70 water-based acrylic UV resins, 3 water-based UV photoinitiators (trade name ciba 1173), 5 water, 10 alcohol, and 10 waterproof Fog additive polyethylene wax 3, defoamer (trade name dego 902) 0.7, leveling agent (trade name byk-333) 0.5.

[0016] Preparation method: first weigh the water-based acrylic UV resin and water-based ultraviolet photoinitiator in the above parts by weight and mix them, then put them into a high-speed mixer and stir at a stirring speed of 4000 rpm, and stir for 1 hour. After they are dissolved, add other remaining The raw materials were stirred for another 10 minutes to make water-based UV-curable gravure varnish.

Embodiment 2

[0017] Embodiment 2, a kind of water-based ultraviolet curing gravure varnish, is made of following raw materials in parts by weight: water-based acrylic UV resin 80, water-based ultraviolet photoinitiator (trade name ciba 1173) 5, water 6, alcohol 12, waterproof Fog additive polyethylene wax 5, defoamer (trade name dego 902) 0.3, leveling agent (trade name byk-333) 0.8.

[0018] The preparation method is the same as in Example 1, and will not be repeated here.

Embodiment 3

[0019] Embodiment 3, a kind of water-based ultraviolet curing gravure varnish, is made of the following raw materials in parts by weight: water-based acrylic UV resin 75, water-based ultraviolet photoinitiator (trade name ciba 1173) 6, water 7, alcohol 13, waterproof Fog additive Klein 36204, defoamer (trade name dego 902) 0.5, leveling agent (trade name byk-333) 0.1.

[0020] The preparation method is the same as in Example 1, and will not be repeated here.

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PUM

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Abstract

The invention discloses a water-based ultraviolet light curing gravure varnish, which is made of the following raw materials in parts by weight: 60-90 water-based UV resin, 2-8 water-based ultraviolet photoinitiator, 3-8 water, and 8-15 alcohol , Water-proof mist additive 3-5, defoamer 0.1-1, leveling agent 0.1-1. The invention provides a water-based ultraviolet light-curable gravure varnish which has the advantages of both water-based varnish and UV varnish, low energy consumption, fast curing reaction and low VOC emission.

Description

technical field [0001] The invention belongs to the technical field of printing, and relates to an ink, in particular to a water-based ultraviolet light curing gravure varnish. Background technique [0002] The varnish used in gravure printing usually has three types: solvent-based varnish, water-based varnish and UV varnish; the printing performance of these three varnishes has certain shortcomings: 1. The printing drying method is single; among them, solvent-based varnish And water-based varnish can only be cured by hot air drying, and UV varnish can only be cured by UV light. 2. A large amount of chemical solvents are added to the solvent-based varnish, which volatilizes during the drying process, which is easy to cause environmental pollution, endanger human health, cause product odor, and is not environmentally friendly. And the gloss of solvent-based varnish after curing is not high, and the physical properties such as friction resistance are not good; 3. Water-based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/101C09D11/107
Inventor 马宏刚曹俊志
Owner SHENZHEN KECAI PRINTING
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