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UV offset transparent printing ink, and preparation method

A transparent ink and offset printing technology, applied in ink, household utensils, applications, etc., can solve the problems of easy gelling, slow drying speed, and difficult control of viscosity of products, and achieve the effect of not easy gelling, fast drying, and firm adhesion

Active Publication Date: 2007-07-25
深圳市深赛尔股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a UV offset printing transparent ink to overcome the defects of the existing UV offset printing transparent inks such as slow drying speed, easy gelation of products, and difficulty in controlling viscosity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 Preparation of UV offset printing transparent yellow ink

[0019] Disperse and grind the mixture of 10 parts of benzidine yellow G1138-01 and 8 parts of oil soluble yellow KR, then mix the ground mixture with 10 parts of Actilane540 type polyester acrylate oligomer and 2 parts of dipentaerythritol pentaacrylate Prepulped, milled on a triple roller mill. After grinding, add 50 parts of polyester acrylate oligomer, 8 parts of dipentaerythritol pentaacrylate, 7 parts of 1-hydroxy-cyclohexyl benzophenone, 3 parts of benzophenone, 2 parts of dispersant Afcona-4000, Keep the stirring speed at 1500rpm / min, and stir for 60 minutes to obtain the transparent yellow ink for UV offset printing. The whole process takes place indoors.

Embodiment 2

[0020] Example 2 Preparation of transparent red ink for UV offset printing

[0021] Disperse and grind the mixture of 10 parts of naphthol AS and 12 parts of oil-soluble red KR-1, and then mix the ground mixture with 11 parts of Actilane515 type polyester acrylate oligomer and 3 parts of propoxylated trimethylol propane triacrylate mixed pre-pulp, ground on a triple roller mill. After milling, add 41 parts of polyester acrylate oligomer and 10 parts of propoxylated trimethylolpropane triacrylate and 4 parts of 2-methyl-1-[4-methylthiophenyl]- 2-Morpholinyl-1-acetone, 4 parts of benzophenone, 5 parts of dispersant Afcona-4009, control the stirring speed to 1800rpm / min, and stir for 45 minutes to obtain UV offset printing transparent red ink. Avoid direct sunlight during the whole process.

Embodiment 3

[0022] Embodiment 3 Preparation of UV offset printing transparent blue ink

[0023] Disperse and grind the mixture of 12 parts of phthalocyanine blue and 10 parts of oil soluble blue EL, and then mix the ground mixture with 15 parts of Actilane260 type polyester acrylate oligomer and 4 parts of tripropylene glycol diacrylate , Grind finely on a three-kun mill. After grinding, add 40 parts of polyester acrylate oligomer and 11 parts of tripropylene glycol diacrylate and 3 parts of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 2 parts of diphenylmethane Ketone, 3 parts of dispersant Afcona-4015, keep the stirring speed at 1600rpm / min, stir for 60 minutes to get UV offset printing transparent blue ink. The whole process takes place indoors.

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PUM

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Abstract

This invention relates to a method for preparing transparent ink for UV offset printing. The ink comprises: acrylate oligomer 50-70 parts, pigment 8-15 parts, dye 8-12 parts, active diluter 10-30 parts, photoinitiator 3-10 parts, and dispersant 1-5 parts. The method comprises: milling pigment and dye, mixing with part of acrylate oligomer and active diluter, milling, adding the rest acrylate oligomer and active diluter, photoinitiator and dispersant, and stirring at a high speed. The ink solves the problems of low drying speed, easy gelation, and uncontrollable viscosity faced by present transparent ink for UV offset printing. The ink has such advantages as good luster, high transparency, high adhesiveness, rapid drying, stable properties, no gelation, stable storage, and good weathering and corrosion resistance.

Description

technical field [0001] The invention relates to the field of inks, in particular to a transparent ink for UV offset printing and a preparation method thereof. Background technique [0002] UV offset printing ink is a liquid ink that can change from liquid to solid under the irradiation of ultraviolet rays of a certain wavelength. It is usually composed of pigments, pre-polymers, reactive diluents, photoinitiators and additives. Non-toxic solvent, no odor, no irritation, good leveling, no web blocking, strong water resistance, solvent scrubbing resistance, etc., suitable for printing on silver cardboard, laser paper and other materials. UV offset printing transparent ink is to add a certain amount of dye to the existing offset printing ink system to make the ink appear transparent. However, the existing dyes used in UV offset printing transparent inks have poor stability, and after adding dyes to the ink system, the ink becomes almost impossible to dry and the viscosity is d...

Claims

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Application Information

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IPC IPC(8): C09D11/10C09D11/03C09D11/037C09D11/101C09D11/107
Inventor 刘国民
Owner 深圳市深赛尔股份有限公司
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