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Metal printing UV varnish and coating method thereof

A metal and varnish technology, applied in the direction of epoxy resin coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of high cost of VOC pollution discharge fees, VOC treatment costs, bubbles, shrinkage cavities, etc., to meet most of the curing requirements Necessary, high photocuring efficiency, effect of increasing gloss

Inactive Publication Date: 2017-10-03
HANGZHOU CPMC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the printing industry, the traditional method is to use solvent-based inks. The existing solvent-based ink printing process has the following defects: 1. Material: heat-curable solvent-based varnish is used, the solvent ratio is generally between 50-70%, and the VOC content is high. , the cost of VOC pollution discharge fees and the cost of VOC treatment are huge, which have a certain impact on environmental protection
2. Equipment: The heat curing oven is generally 27-32 meters long, covers a large area, the operation, maintenance and maintenance of the equipment are complicated, and the labor intensity of the employees is high.
[0004] However, there are still some deficiencies in the existing UV printing, such as the unsatisfactory leveling, gloss, and adhesion of UV-curable inks, the light-curing efficiency is not high enough, and appearance defects such as bubbles, shrinkage cavities, and particles appear during the printing process.

Method used

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  • Metal printing UV varnish and coating method thereof
  • Metal printing UV varnish and coating method thereof
  • Metal printing UV varnish and coating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A metal printing UV varnish, including the following components by mass percentage:

[0042] Light curing resin prepolymer (modified epoxy acrylic resin) 45%,

[0043] Active monomer (20% ethoxy acrylate, 10% hexanediol diacrylate, 10% acryloyl morpholine) 40%,

[0044] Photoinitiator (TPO(75980-60-8) 8%, active amine 2%) 10%,

[0045] Acrylic leveling agent 2%,

[0046] Silicone defoamer 2%,

[0047] Modified PTFE wax 1%.

Embodiment 2

[0049] A metal printing UV varnish, including the following components by mass percentage:

[0050] Light curing resin prepolymer (modified polyurethane acrylic resin) 30%,

[0051] Active monomer (15% trihydroxy acrylate, 20% hydroxyethyl methacrylate, 10% tripropylene glycol diacrylate) 45%,

[0052] Photoinitiator (TPO-L(84434-11-7) 5%, active amine 5%) 10%,

[0053] Silicon leveling agent 5%,

[0054] Silicone defoamer 5%,

[0055] Modified PTFE wax 5%.

Embodiment 3

[0057] A metal printing UV varnish, including the following components by mass percentage:

[0058] Light curing resin prepolymer (diallyl phthalate) 60%,

[0059] Active monomer (15% ethoxy acrylate, 15% tripropylene glycol diacrylate) 30%,

[0060] Photoinitiator (Irgacure 184(947-19-3) 5%),

[0061] Acrylic leveling agent 2%,

[0062] Silicone defoamer 2%,

[0063] Modified PTFE wax 1%.

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Abstract

The invention relates to the field of printing, and discloses a metal printing UV varnish and a coating method thereof. The UV varnish comprises the following components in percentage by mass: 30-60% of photocuring resin prepolymer, 30-60% of active monomer, 5-15% of photoinitiator and 0-15% of additive. The photocuring resin prepolymer is composed of at least one of a modified epoxy acrylic resin, a modified polyurethane acrylic resin and diallyl phthalate. The active monomer is composed of at least one of ethoxy acrylate, hexanediol diacrylate, acryloylmorpholine, trihydroxy acrylate, hydroxyethyl methacrylate and tripropylene glycol diacrylate. The UV varnish has the advantages of favorable leveling property, favorable gloss, favorable adhesive force and high photocuring efficiency. When being matched with the specific coating method disclosed by the invention, the UV varnish can not easily produce blisters, cratering, particles or other apparent defects.

Description

Technical field [0001] The invention relates to the field of printing, in particular to a metal printing UV varnish and a coating method thereof. Background technique [0002] In the printing industry, the traditional method is to use solvent-based inks. The existing solvent-based ink printing process has the following defects: 1. Material: heat curing solvent-based varnish is used, the solvent ratio is generally between 50-70%, and the VOC content is high , The cost of VOC discharge fees and VOC treatment costs are huge, which has a certain impact on environmental protection. 2. Equipment: The heat curing oven is generally 27-32 meters long, with a large area, complicated equipment operation, maintenance and maintenance, and high labor intensity of employees. 3. Process: coating dry film weight 6-10g / m 2 And heat curing for 10-12 minutes at 160-200℃. The heat curing time is long, the production efficiency is low, and a large amount of natural gas energy is required. [0003] Wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D175/14C09D4/06C09D7/06C09D7/12B05D1/00B05D3/06
CPCC09D163/10B05D1/00B05D3/067C08L2205/03C08L2205/035C09D4/06C09D175/14C08L75/14C08L33/04C08L27/18
Inventor 朱争礼孙希岚程斌才
Owner HANGZHOU CPMC
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