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A varnish that can be used for uv printing

A varnish and photoinitiator technology, applied in coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve the problems that the printed pattern does not have a protective effect, the three-dimensional pattern loses its gloss and color, and the gloss is lost. Reduce the scrap rate of print heads, good color and gloss, and prevent the aging effect of varnish

Active Publication Date: 2021-08-17
GUANGDONG HEYGEY LIGHT CURING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the varnish currently on the market can only increase the glossiness, it does not have more protection for the printed pattern, so the printed three-dimensional pattern is prone to loss of light and color, especially for posters and billboards placed outdoors etc., long-term exposure to wind and sun, it is easy to fade and lose luster after a period of time

Method used

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  • A varnish that can be used for uv printing
  • A varnish that can be used for uv printing
  • A varnish that can be used for uv printing

Examples

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Embodiment Construction

[0028] The present invention is described in further detail now in conjunction with embodiment.

[0029] The varnish that can be used for UV printing is prepared by the following method: Weigh the components in proportion, first mix the acrylic resin and the modified monomer at 60°C, and then add additives, Color retention agent and photoinitiator, after each raw material is added, stir evenly before adding the next raw material, after all the raw materials are added, stir evenly.

[0030] figure 1 Be the nuclear magnetic resonance spectrogram of color retention agent (product II) of the present invention, nuclear magnetic data is as follows (CDCl 3 as solvent): δ=9.41~9.45 (a, 2H), δ=7.14~8.20 is the characteristic absorption peak of the hydrogen atom on the benzene ring of 4-hydroxyl-3-(3-hydroxybenzoyl) benzoic acid, δ= 6.61~6.64(b, 4H), δ=6.02~6.07(c, 1H), δ=5.31~5.34(d, 2H), δ=5.13~5.16(e, 1H), δ=4.65~4.70(f, 2H), δ=4.56~4.60(g, 1H), δ=2.55~2.61(h, 1H), δ=1.95~1.99(i, ...

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Abstract

The invention belongs to the technical field of UV printing varnish, and specifically relates to a varnish that can be used for UV printing. Agent 2-6%, Photoinitiator 1-5%, Auxiliary 1-5%. The present invention improves the protective effect on oxygen, heat and ultraviolet aging by adding a color-retaining agent, and the added color-retaining agent contains N-cyclohexyl-p-methoxyaniline structure and o-hydroxybenzophenone structure at the same time, wherein The structure of N-cyclohexyl p-methoxyaniline has good anti-aging performance, the structure of o-hydroxybenzophenone can absorb ultraviolet rays, and has good light and thermal stability. Adding this color retaining agent to varnish can effectively prevent light The oil ages, absorbs ultraviolet rays, and protects the printed pattern inside the varnish, so that the printed pattern can maintain good color and luster for a long time.

Description

technical field [0001] The invention belongs to the technical field of varnish, and in particular relates to a varnish which can be used for UV printing. Background technique [0002] At present, UV printers occupy an increasingly important position in the printing market, and are widely used in various fields such as decoration and building materials, advertising processing, enterprise production, oil painting industry, and personalized customization. UV flatbed printer adopts piezoelectric inkjet printing technology, without direct contact with the surface of the material, relying on the voltage inside the nozzle to spray the ink in the nozzle hole to the surface of the substrate to achieve the purpose of printing pictures. And the ultraviolet wave emitted by the LED cold light source lamp reacts with the photosensitive curing agent in the UV ink, causing the pigment molecules in the UV ink to solidify on the surface of the material to realize the drying of the ink. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D167/06C09D163/10C09D7/63
CPCC09D163/10C09D167/06C09D175/14C09D7/63C08K5/18
Inventor 彭健华蒋卫华吴勇
Owner GUANGDONG HEYGEY LIGHT CURING MATERIALS
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