Photo-cured printing ink for ink-jet printer

An inkjet printer and printing ink technology, applied in the field of inkjet printing, can solve the problems of flammability, limited materials, large molding shrinkage, etc., and achieve the effects of good adhesion, no solvent volatilization, and high curing degree

Inactive Publication Date: 2015-03-25
CHANGSHU RES INST OF DALIAN UNIV OF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional inks can be divided into water-based and solvent-based inks according to their main components. Water-based inks are mainly composed of water, colorants and various additives. There are two defects in their use: one is that the drying time is too long. The production speed is increased, and the second is that due to the limited materials that can absorb water, the range of substrates that can use water-based inks is narrow
The solvent-based ink is different, because the organic solvents used have fast volatilization characteristics, which can effectively reduce the impact of drying time on production speed. The problem is that most organic solvents have toxicity and flammability. , will pollute the environment
[0004] Photocurable inks can be divided into free radical photoc...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of photocurable printing ink that is used for inkjet printer, take the total amount of photocurable printing ink as benchmark, this photocurable printing ink comprises following components: 30wt% bisphenol A type epoxy compound, 50wt% butyl Glycidyl ether, 0.1 wt% C.I. Pigment Black-7, 10 wt% aromatic diazonium salt, 0.01 wt% benzoin dimethyl ether BDK, 9.89 wt% defoamer.

[0034] The preparation method of this photocurable printing ink is characterized in that, comprises the following steps:

[0035] (1) Grinding and dispersion:

[0036] Will account for the bisphenol A type epoxy compound of the total amount 30wt% of the photocurable printing ink of described ink-jet printer, the butyl glycidyl ether of 50wt%, the C.I. pigment black 7 of 0.1wt%, the disappearance of 9.89wt% The foaming agent is ground and dispersed to obtain the color paste;

[0037] (2) Dissolving and filtering:

[0038] Add 10wt% aromatic diazonium salt and 0.01% benzoin dimethyl ether BDK...

Embodiment 2

[0043] A photocurable printing ink for inkjet printers, based on the total amount of photocurable printing ink, the photocurable printing ink includes the following components: 50wt% biphenyl epoxy compound, 20wt% 1,4 -Butanediol diglycidyl ether, 10wt% of C.I. Pigment Red-5, 0.1wt% of aromatic sulfonium salt, 10wt% of 1-hydroxycyclohexyl phenyl ketone, 9.4wt% of Efka-4009, 0.5 wt% leveling agent.

[0044] The preparation method of this photocurable printing ink is characterized in that, comprises the following steps:

[0045] (1) Grinding and dispersion:

[0046] Will account for the total amount of photocurable printing ink of described ink-jet printer 50wt% biphenyl epoxy resin, 20wt% 1,4-butanediol diglycidyl ether, 10wt% C.I. Pigment Red 5, 9.4 Wt% Efka-4009, 0.5wt% leveling agent are ground and dispersed to obtain color paste;

[0047] (2) Dissolving and filtering:

[0048] Add 0.1wt% aromatic sulfonium salt and 10wt% sensitizer to the total amount of the light-curab...

Embodiment 3

[0053] A light-curable printing ink for inkjet printers, based on the total amount of light-curable printing ink, the light-curable printing ink comprises the following components: 90wt% glycidylamine type epoxy compound, 5wt% ethylene glycol Alcohol diglycidyl ether, 1wt%: C.I. Pigment Blue-2, .1wt% aromatic iodonium salt, 1wt% 2-hydroxy-methylphenylpropan-1-one, 1wt% Solsperse22000, 1wt% stabilizer.

[0054] The preparation method of this photocurable printing ink is characterized in that, comprises the following steps:

[0055] (1) Grinding and dispersion:

[0056] Will account for the glycidylamine type epoxy compound of the total amount 90wt% of the photocurable printing ink of described ink-jet printer, the ethylene glycol diglycidyl ether of 5wt%, 1wt%: C.I. pigment blue 2, 1wt% Solsperse22000, 1wt% stabilizer is ground and dispersed to obtain color paste;

[0057] (2) Dissolving and filtering:

[0058] Add the aromatic iodonium salt that accounts for the total amou...

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Abstract

The invention discloses photo-cured printing ink for an ink-jet printer, relates to a preparation method of the photo-cured printing ink, and belongs to the technical field of ink-jet printing. The photo-cured printing ink comprises 30-90wt% of epoxy monomer, 5-50wt% of diluents, 0.1-20% of coloring agents, 0-20wt% of dispersing agents, 0.5-40wt% of auxiliaries and the like which are grinded and scattered to obtain color paste, 0.1-20% of photo-initiators and sensitizers are added into the mixture, the mixture is sufficiently dissolved and scattered in ink by stirring and ultrasound, and the ink is filtered at multiple stages and then degassed to obtain the photo-cured printing ink. The photo-cured printing ink can be used for the ink-jet printer and has the advantages that the ink is completely cured, the curing degree is also increased, the size is reduced, oxygen inhibition is avoided, zero VOC (volatile organic compounds) emission is avoided, environmental pollution is decreased, cured wavelengths move towards visible light, and the application range is extended.

Description

technical field [0001] The invention belongs to the technical field of inkjet printing, and in particular relates to a photocurable printing ink for an inkjet printer and a preparation method thereof. Background technique [0002] Inkjet printing is a printing method in which small droplets of an ink composition are dispersed and sprayed onto a substrate (paper, plastic, textile, metal, etc.) according to a set program, because of its high printing accuracy and fast printing speed. features are widely used. Ink is particularly important to the quality of inkjet printers, and the performance requirements of inkjet ink are also very strict. First, it needs to be safe, non-toxic, odorless, and good storage stability, as well as low viscosity and suitable surface tension. [0003] Traditional inks can be divided into water-based and solvent-based inks according to their main components. Water-based inks are mainly composed of water, colorants and various additives. There are tw...

Claims

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Application Information

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IPC IPC(8): C09D11/30C09D11/38
CPCC09D11/30C09D11/38
Inventor 崔京南王柳董琳
Owner CHANGSHU RES INST OF DALIAN UNIV OF TECH CO LTD
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