Pinkish red UV ink-jet ink for high-speed ink-jet printing and preparation method thereof

A technology of inkjet printing and inkjet ink, which is applied in the field of magenta ultraviolet (UV) inkjet ink and its preparation, which can solve the problems of ink limitation, failure to meet the requirements of high-speed inkjet printing, etc., and achieve the effect of simple process

Inactive Publication Date: 2013-07-31
BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, a variety of radiation-curable inkjet inks have been proposed in patents, but the application of these ink

Method used

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  • Pinkish red UV ink-jet ink for high-speed ink-jet printing and preparation method thereof
  • Pinkish red UV ink-jet ink for high-speed ink-jet printing and preparation method thereof
  • Pinkish red UV ink-jet ink for high-speed ink-jet printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Mix 30 parts of prepolymer, 42 parts of monomers, and 8 parts of dispersant, place them on a thermostatic magnetic stirrer and stir for 30 minutes to mix evenly; add 20 parts of azo red, use a stirrer to stir the mixture for 30 minutes for pre-dispersion , Use a high-speed grinder to grind for 90 minutes to obtain magenta ink color paste. The azo red is selected from Ciba’s RT-355-D, the prepolymer is hyperbranched polyester acrylic resin from Cytec’s EB150 series, and the monomer is commercially available acrylic acid 2-ethoxyethoxy. A mixture of ethyl ester, hexanediol diacrylate and trimethylolpropane triacrylate in a ratio of 2-ethoxyethoxyethyl acrylate, hexanediol diacrylate and trimethylolpropane triacrylate = 5:3:2 (weight ratio), the dispersant is a dispersant containing organic modified polysiloxane selected from the dispers series of TEGO.

[0032] Mix 20 parts of monomer, 50 parts of film-forming resin, 10 parts of photoinitiator (including hydrogen donor acti...

Embodiment 2

[0034] Mix 30 parts of prepolymer, 51 parts of monomer, and 4 parts of dispersant. Place them on a thermostatic magnetic stirrer and stir for 30 minutes to mix evenly; add 15 parts of quinacridone red, and use a stirrer to stir the mixture for 30 minutes for pretreatment. After dispersion, use a high-speed grinder to grind for 90 minutes to obtain magenta ink color paste. Among them, quinacridone red is selected from Ciba's Micro Korea 5B-K, the prepolymer is a commercially available polyester acrylate, and the monomer is a commercially available 2-phenoxyethyl acrylate and phthalic acid. A mixture of diethanol diacrylate and ethoxylated trimethylolpropane triacrylate in a ratio of 2-phenoxyethyl acrylate: diethanol diacrylate: ethoxylated Trimethylolpropane triacrylate=9:6:1 (weight ratio), the dispersant is selected from BASF's EFKA series.

[0035] Mix 30 parts of monomer, 46 parts of film-forming resin, 1 part of photoinitiator (including hydrogen donor active amine), and 5 ...

Embodiment 3

[0037] Mix 30 parts of prepolymer, 48 parts of monomer, and 12 parts of dispersant, stir for 30 minutes to mix evenly; add 10 parts of azo red, use a stirrer to stir the mixture for 30 minutes for pre-dispersion, then use a high-speed grinder to grind for 60 Minutes to obtain magenta ink color paste. The azo red is selected from Ciba’s RT-355-D, the prepolymer is a commercially available polyester acrylate, and the monomer is a commercially available isobornyl acrylate and triethylene glycol dimethacrylate. A mixture with trimethylolpropane trimethacrylate, the ratio is isobornyl acrylate: triethylene glycol dimethacrylate: trimethylolpropane trimethacrylate=7:9:4 ( Weight ratio), the dispersant is selected from BYK company byk-168.

[0038] Mix 20 parts of monomer, 42 parts of film-forming resin, 6 parts of photoinitiator, and 2 parts of leveling agent, add 30 parts of color paste and stir for 60 minutes with a stirrer to obtain magenta UV inkjet ink. The monomer is a mixture ...

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Abstract

The invention relates to a pinkish red UV ink-jet ink for high-speed ink-jet printing and a preparation method thereof. The pinkish red UV ink-jet ink is used for printing of paper materials and belongs to the technical field of digital printing. The pinkish red UV ink-jet ink comprises, by weight, 15 to 30 parts of color paste, 20 to 35 parts of a monomer, 40 to 50 parts of a film forming resin, and 1 to 10 parts of a photoinitiator. The color paste comprises, by weight, 10 to 25 parts of a pinkish red pigment, 15 to 30 parts of a prepolymer, 40 to 60 parts of a monomer and 4 to 10 parts of a dispersant. The pinkish red UV ink-jet ink is prepared by stirring and high-speed grinding. The pinkish red UV ink-jet ink satisfies ink-jet printing requirements, has particle size less than 0.5 microns, viscosity of 20 to 30cP (at 25 DEG C), surface tension of 20 to 35mN/m (at 25 DEG C), a curing rate of 30 to 50m/min (based on light source linear power of 200W/cm), and conductivity less than 18 microseconds per centimeter.

Description

Technical field [0001] The invention relates to a magenta ultraviolet (UV) inkjet ink for high-speed inkjet printing and a preparation method thereof. The printing material is mainly paper and belongs to the technical field of digital printing. Background technique [0002] The key advantage of UV curing technology is that it does not contain solvents, does not emit VOCs, and avoids the impact of traditional solvent-based inks on the environment. It is considered a "green technology" and can achieve instant curing. The ink drying speed is higher than Water-based or solvent-based inks, but UV inks are mainly used in traditional printing methods, such as offset printing and silk screen printing. As a kind of digital printing technology, inkjet printing has the advantages of non-impact transfer, simple operation, and low requirements for printing materials. Printing equipment that combines UV curing technology and inkjet printing has been available. The demand for ink will increase...

Claims

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Application Information

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IPC IPC(8): C09D11/10C09D11/322
Inventor 张婉黄蓓青魏先福顾灵雅刘江浩杨晓
Owner BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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