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Inkjet ink and printing methods

An inkjet printing machine and ink technology, applied in printing, ink, copying/marking methods, etc., can solve the problems of inability to apply ink, etc., and achieve the effects of simple composition, excellent ejection stability, and excellent resolubility

Active Publication Date: 2013-01-16
KISHU GIKEN INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technologies described in the above-mentioned patent documents 10 and 11 all relate to drop-on-demand inkjet water-based inks, and cannot be applied to inks using ketone-based organic polar solvents such as MEK

Method used

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  • Inkjet ink and printing methods
  • Inkjet ink and printing methods
  • Inkjet ink and printing methods

Examples

Experimental program
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Effect test

Embodiment 1

[0063] Butyral resin (molecular weight = 19000, hydroxyl group content = 36%, acetyl group content = 3%, butyralization degree 63%) 4.2 parts by weight, Solspray 24000 (dispersant: manufactured by Lubrizol Corporation) 0.5 parts by weight, 0.2 parts by weight of Solspray 5000 (dispersant: manufactured by Lubrizol Corporation), and 10 parts by weight of rosin-modified maleic acid resin were dissolved in 79.2 parts by weight of methyl ethyl ketone to form a solution, and 4.2 parts by weight of carbon black (REGAL330R: manufactured by Cabot Corporation) was added to this solution and stirred to obtain a mixed solution, which was supplied to a horizontal sand mill to disperse carbon black. 1 part by weight of blocked isocyanate using dimethylpyrazole as a blocking agent was added to the dispersion and mixed, and 0.7 part by weight of tetrabutylammonium hexafluorophosphate was added, followed by high-speed stirring and mixing. Thereafter, the mixed dispersion liquid was filtered th...

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PUM

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Abstract

The invention relates to an inkjet ink and printing method, particularly in terms of related to solubility good resin is fully dissolved, and has good stability in the inkjet printer ink, need to be fully with density and resistance to washing after printing ink and solvent resistance. An ink jet ink, by making the inkjet ink with ketone solvents in to match the enclosed isocyanate well, can realize fully have to be print on the surface of the density and resistance, resistance to washing after printing and inkjet ink solvent resistance. That is, the inkjet ink for containing ketone solvents and colorants used inkjet printer ink, its characteristics is also contains enclosed isocyanate. As a result, as shown in figure 1 (b), printing data matrix YinShuaDian use dip cotton swab to wipe 20 times with ethanol will not dissolve.

Description

technical field [0001] The present invention relates to an ink used in an inkjet printer, and more specifically, to an inkjet ink capable of forming a solvent-resistant print on the surface of a printed matter, and a printing method using the ink. Background technique [0002] In general, inkjet printing, which can easily print variable information without contact, is widely used as a recording method on plastic, glass, metal, or the like. As inks used in such inkjet printers, oily dyes, vinyl chloride resins, vinyl acetate resins, acrylic resins, butyral resins, etc. dissolved in solvents such as methyl ethyl ketone and alcohol are known. ink. Incidentally, Patent Document 1 discloses an inkjet ink using a phenolic resin. Patent Document 2 discloses an ink for printing on glass and glass-covered ceramics. Patent Document 3 discloses an ink in which a polyamide resin is dissolved in a solvent. However, inks using these resins are designed to provide sufficient stability ...

Claims

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Application Information

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IPC IPC(8): C09D11/02C09D11/10B41J2/01B41M5/00C09D11/00C09D11/322C09D11/38
Inventor 上野山泰世山本智平野隆康鹤田太中村公彦饭田保春
Owner KISHU GIKEN INDS
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