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Epoxy-resin-modified UV (ultraviolet) raw lacquer ink for digital jet printing and preparation method thereof

An epoxy resin, digital printing technology, applied in the direction of ink, application, household appliances, etc., can solve the problems of long curing time, easy to block the nozzle, and spray out from the bottom, to achieve good paint film performance, improve paint film performance, The effect of high adhesion

Inactive Publication Date: 2016-04-20
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention proposes an epoxy resin modified UV lacquer ink for digital jet printing and its preparation method. The defect of long time, combined with the preparation of UV ink, combined the modified raw lacquer and UV ink manufacturing technology to prepare a new type of "raw lacquer ink" that can be digitally printed without clogging the nozzle, and can be cured by UV. The "raw lacquer ink" combines the excellent paint film performance of lacquer and the advantages of UV ink, realizes the interdisciplinary combination and innovation of the field of lacquer finishing and digital printing technology, and meets the needs of modern industrial production; synthesizes new lacquer with a new reaction mechanism Resin and ink are blended so that the blended "lacquer ink" can be ejected from digital inkjet printing equipment without clogging the nozzle, and it is cured by UV light instantly. It has the excellent performance of both raw lacquer and UV ink, and overcomes the original technical flaws

Method used

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  • Epoxy-resin-modified UV (ultraviolet) raw lacquer ink for digital jet printing and preparation method thereof
  • Epoxy-resin-modified UV (ultraviolet) raw lacquer ink for digital jet printing and preparation method thereof
  • Epoxy-resin-modified UV (ultraviolet) raw lacquer ink for digital jet printing and preparation method thereof

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preparation example Construction

[0029] The preparation method of the epoxy resin modified UV raw lacquer ink that is used for digital jet printing comprises the steps:

[0030] (1) First, extract urushiol from Ankang lacquer, Pingli lacquer, Chengkou lacquer, Maoba lacquer, Qinling lacquer or other raw lacquers in a three-necked flask with xylene at a mass ratio of 1:1, and take the supernatant after standing still. Liquid, obtain urushiol xylene solution;

[0031] (2) Put the urushiol xylene solution, formaldehyde, ammonia water, and polymerization inhibitor in the reaction kettle (the molar ratio of urushiol to formaldehyde is 0.85-0.9, ammonia water is the catalyst), and control the system temperature at 40-70°C for reaction 0.5-1h; After the reaction is completed, the temperature is raised for dehydration, and when the temperature reaches 136°C, the water is removed to obtain the urushiol formal polymer;

[0032] (3) Put the obtained urushiol formal and epoxy resin in equal proportions into the reaction...

Embodiment 1

[0045] In the preparation process of a kind of epoxy resin modified UV raw lacquer ink for digital jet printing of the present embodiment, the mass percentage of each component is as follows:

[0046]

[0047] The other additives include catalysts, defoamers, stabilizers, photosensitizers, leveling agents, and the ratio is 1:1.

Embodiment 2

[0049] In the preparation process of a kind of epoxy resin modified UV raw lacquer ink for digital jet printing of the present embodiment, the mass percentage of each component is as follows:

[0050]

[0051] The other additives include catalysts, defoamers, stabilizers, photosensitizers, leveling agents, and the ratio is 1:1.

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PUM

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Abstract

The invention relates to an epoxy-resin-modified UV (ultraviolet) raw lacquer ink for digital jet printing and a preparation method thereof. The epoxy-resin-modified UV raw lacquer ink for digital jet printing is composed of the following raw materials in percentage by mass: 2.5-6% of epoxy resin, 1.25-3% of urushiol, 1.25-3% of formaldehyde, 75-85% of acrylic monomer, 4-10% of photoinitiator, 5-15% of pigment and 1-5% of assistant. The epoxy-resin-modified UV raw lacquer ink for digital jet printing solves the problems of incapability of jet printing, sprayer blockage and long curing time in the raw lacquer and modified raw lacquer. The prepared raw lacquer ink can be directly printed onto the substrate surface by digital jet printing, overcomes the defects of harsh drying conditions and time consuming in the traditional raw lacquer and modified lacquer, can be instantaneously cured under UV light, has the advantages of no sprayer blockage, low pollution, favorable jet printing quality and favorable resistance, is suitable for multiple substrates, implements integrated innovation on the digital jet printing technique, and is a transition from the simple traditional artificial manufacturing to the traditional technique / digitalization combined production.

Description

technical field [0001] The present invention relates to a preparation method of epoxy resin modified UV lacquer ink for digital printing, which belongs to the integrated innovation of digital inkjet printing, UV curing technology, lacquer and other fields. Factors such as viscosity and molecular particle size cannot be used for the defects of small-aperture spraying. Through the modification of raw lacquer and ink, the lacquer art painting has changed from simple traditional manual production to traditional craft and [0002] Digitalization combined with the transformation of production. Background technique [0003] Raw lacquer is mainly composed of urushiol, laccase, polysaccharide, glycoprotein, water, metal ions and other substances. It is a water-in-oil reactive bio-based composite system. At present, many people at home and abroad have used modified raw lacquer to improve the performance of its paint film. Among them, epoxy-modified raw lacquer, that is, epoxy-modifi...

Claims

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Application Information

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IPC IPC(8): C09D11/101C09D11/107C09D11/32
CPCC09D11/101C09D11/107C09D11/32
Inventor 吴智慧李慧敏吴燕桑瑞娟闫小星
Owner NANJING FORESTRY UNIV
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