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Radiation curable ink and application thereof

A technology of radiation curing and ink, applied in the field of light curing, which can solve the problems of low market value, high cost, poor binding force, etc., and achieve the effects of moderate crosslinking density and surface tension, low viscosity, good processability and productivity

Active Publication Date: 2020-12-29
CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a radiation-curable ink and its application to solve the problem of high cost and low market value caused by poor bonding force of radiation-curable ink in the prior art when repeated

Method used

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  • Radiation curable ink and application thereof
  • Radiation curable ink and application thereof
  • Radiation curable ink and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0090]

[0091] After the required pigment dispersion is prepared, the above-mentioned ink of the present invention can be prepared by conventional methods in the field of radiation-curable compositions.

[0092] Representatively, the preparation method of above-mentioned ink comprises the following steps:

[0093] (1) prepare pigment dispersion;

[0094] (2) Put the polymerizable compound, photoinitiator, pigment and other optional components in a dark or inactive light source (that is, a light source that does not cause photocuring reaction, such as a yellow or red safe light), constant voltage Under the condition of constant temperature, mixing, stirring, dispersing, and filtering (filtering through a filter screen of a specified size to obtain a product with a desired particle size) are sufficient.

[0095] The above-mentioned pigment dispersion is prepared by mixing pigment D, dispersing aid, and dispersing monomer.

[0096] The above-mentioned dispersing aids may be ...

Embodiment 1

[0109] Add 200g of 2,2'-dihydroxyhydrogenated biphenyl, 20g of sodium bisulfate, 0.1g of p-hydroxyphenol, and 200g of xylene into the reaction flask, reflux for dehydration, react for 6 hours, and separate 17g of water. After the reaction is complete, wash with 150g of water twice. Remove xylene by distillation under reduced pressure, then add 200g of dichloromethane, 5g of phosphotungstic acid, 5g of cetylpyridine, dropwise add 150g of 30% hydrogen peroxide at 30-40°C, keep warm for 3 hours, wash twice with 200g of water, remove under reduced pressure Solvent, then decompression distillation goes out product, obtains material A1, and the epoxy equivalent of material A1 is 124g / mol, double bond content 2.05mol / Kg, and its main component (referring to two kinds of compounds of following structure, the same below) content is 96%;

[0110] Among them, substance A1 includes compounds of the following structure:

[0111]

Embodiment 2

[0113] The difference with Example 1 is that the consumption of cetylpyridine is 8g, the consumption of hydrogen peroxide is 180g, and the substance A2 is prepared, the epoxy equivalent of substance A2 is 110g / mol, the double bond content is 1.12mol / Kg, and its main component content 96.5%;

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Abstract

The invention provides radiation curable ink and application thereof. The radiation-curable ink comprises a polymerizable compound, a photoinitiator and a pigment, the polymerizable compound comprisesan epoxy compound, the epoxy compound comprises a first alicyclic epoxy compound, and the first alicyclic epoxy compound contains compounds represented by a formula (1) and a formula (2). In the radiation-curable ink, the polymerizable compound comprises the first alicyclic epoxy compounds shown in the formulas (1) and (2), and the first alicyclic epoxy compounds shown in the formulas (1) and (2)have better compatibility with other components in the composition system by adjusting the contents of epoxy and double bond groups. Therefore, the radiation-curable ink has low viscosity, good processability and productivity, the crosslinking density and surface tension of the whole composition are moderate, and the adhesive force is good during recoating, so that the radiation curable ink is more suitable for recoating.

Description

technical field [0001] The invention relates to the technical field of photocuring, in particular to a radiation-curing ink and its application. Background technique [0002] In various applications, such as packaging films, shopping bags or paper, printing technologies such as inkjet printing or flexographic printing are used. The inks used in these printings usually require the use of solvent or water-based pigments into which the ink is dispersed. However, in recent years, with the successive introduction of a series of non-aromatic hydrocarbon solvent inks (such as alcohol-soluble inks or ester-soluble inks), water-based inks, UV inks, soybean oil-based inks and other environmentally friendly inks, the environmental protection of inks is gradually deepening. Among water-based inks, these inks have problems of water resistance and low productivity due to slow drying speed. [0003] In order to solve the above problems, light-curable inks or heat-curable inks have been d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/101
CPCC09D11/101
Inventor 钱晓春翁云峰马丽君胡春青衡京
Owner CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS
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