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A kind of ultraviolet curing ink and preparation method thereof

A technology of ultraviolet light and production method, which is applied in the direction of ink, household utensils, applications, etc., can solve the problems of high ink cost, skin irritation, harmful to human body, etc., and achieve energy consumption saving, drying time reduction, and curing speed improvement. Effect

Active Publication Date: 2011-12-21
哈尔滨大东方新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some shortcomings in UV-curable inks in practical applications: the cost of inks is high; some components in the inks are irritating to the skin; the fixing speed varies with the type of ink and the thickness of the ink film; insufficient fixation or When the fixation is excessive, the ink film is prone to defects; ultraviolet radiation will generate ozone, and a small amount of X-rays will be generated in the ultraviolet generation part, which is harmful to the human body

Method used

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  • A kind of ultraviolet curing ink and preparation method thereof
  • A kind of ultraviolet curing ink and preparation method thereof
  • A kind of ultraviolet curing ink and preparation method thereof

Examples

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Embodiment 1

[0028] Prepare a kind of ultraviolet curable ink, the raw material composition composition of present embodiment is as follows:

[0029]

[0030]

[0031] Carry out the preparation of UV-curable ink according to above specific formula data, described photosensitive resin refers to the mixture of epoxy acrylic resin and urethane acrylate, and described epoxy acrylic resin refers to self-made epoxy acrylic resin, and its specific method is as follows:

[0032] Put epoxy resin E-44 into a reaction kettle with a reflux condenser, start stirring, add acrylic acid, hydroquinone, N, N'-dimethylbenzylamine in sequence, heat up, and feed carbon dioxide or Nitrogen protection. When the temperature rises to 70°C, stop heating, and the reactant starts to polymerize (exothermic reaction, the temperature rises automatically after stopping heating). When the temperature reaches 110°C, carefully control the reaction at 110°C for 2 hours, and take samples to measure the acid value (take ...

Embodiment 2

[0037] Prepare a kind of ultraviolet curable ink, the raw material composition composition of present embodiment is as follows:

[0038]

[0039]According to the above specific formula data, the preparation of UV-curable ink is carried out. The described photosensitive resin refers to the mixture of epoxy acrylic resin and polyurethane acrylate, and the described epoxy acrylic resin refers to difunctional aromatic epoxy acrylate oligomerization Matter UE-13; described urethane acrylate refers to aromatic urethane acrylate SU-710; described active monomer refers to dipentaerythritol hexaacrylate (DPHA) and tetrahydrofuryl methyl methacrylate (THFFA); described The ultraviolet photoinitiator refers to 2-phenylbenzyl-2-dimethylamine-1-(4-morpholine benzylphenyl) butanone; the described pigment refers to sunfast dark red; the described stabilizer refers to 2, 4,6-di-tert-butyl p-cresol; described wax refers to microcrystalline wax; described defoamer refers to a mixture of modi...

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Abstract

The invention relates to an ultraviolet curable ink and a preparation method thereof. The ink comprises 30-60% of light sensitive resins, 15-45% of active monomers, 1-10% of ultraviolet light initiators, 10-20% of pigments and 0.5-2% of auxiliaries by mass and is an ink which is transformed from liquid state to solid state to be cured after binders in the ink are cross-linked under the irradiation of ultraviolet lights with certain wavelengths. The ultraviolet curable ink provided by the invention has the advantages of short light curing time, no need of heating, conservation in energy consumption, no volatile organic solvent VOC (Volatile Organic Compounds) in the ink, no pollution to the atmosphere, smaller effect of temperature variation on system viscosity, high solid content, suitability for multiple production methods and production requirements and excellent comprehensive properties, can be machined and used within a wider temperature range; and very good printing effects of the ultraviolet curable ink on both a hard substrate and a soft substrate can be obtained.

Description

technical field [0001] The invention relates to an ultraviolet light curing ink and a preparation method of the ultraviolet light curing ink. Background technique [0002] Ultraviolet curable ink (referred to as UV ink) is mainly composed of photosensitive resin (oligomer), reactive diluent (reactive monomer), ultraviolet photoinitiator, pigment, filler and other ink additives. The molecular structure of the photosensitive resin has unsaturated chemical bonds, so it can be cross-linked and cured to form a film. The photosensitive resin is a linking material and a functional component of the ink, which determines the properties of the ink and the coating film; the main function of the reactive diluent is: 1. Reduce the viscosity of the system so that the ink has good fluidity; 2. The reactive diluent also contains an unsaturated structure, so it can polymerize with the photosensitive resin; the function of the ultraviolet photoinitiator is to absorb the energy of ultraviolet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/101
Inventor 张立伟张伟李玉良刘志刚冯岩
Owner 哈尔滨大东方新材料科技股份有限公司
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