Non- water pigment ink

A non-aqueous, non-aqueous solvent technology, applied in the direction of ink, printing, copying/marking methods, etc., can solve problems such as the impact of paper transportation

Inactive Publication Date: 2009-10-21
RISO KAGAKU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Generally, water-based (water-based) ink is used for inkjet ink, but it has such disadvantages: when printing on plain paper, the ...

Method used

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  • Non- water pigment ink

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Embodiment

[0057] Hereinafter, the present invention will be described in detail through examples, but the present invention is not limited thereto.

[0058]

[0059] The ingredients shown in Table 1 were put into a 250ml polypropylene container and mixed, and 450g of zirconia beads (0.5mm in diameter) were put in, and a rocking mill (Rocking mill) (SEIWA GIKEN CO., LTD. ) dispersion for 60 minutes, and then, the zirconia beads were filtered, and the obtained contents were filtered with 3.0 μm and 0.8 μm membrane filters to remove dust and coarse particles to obtain respective inks.

[0060] The carbon black used was "MA11" manufactured by Mitsubishi Chemical Corporation, the pigment dispersant was "SOLSPERSE S-11200" manufactured by Lubrizol Japan Ltd., and the petroleum-based hydrocarbon solvent was "AF7 (naphthalene-based solvent) manufactured by NISCO Mitsubishi Corporation. ".

[0061] All of the obtained inks had a pigment particle diameter within an appropriate range for inkjet...

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Abstract

The invention relates to a non-water pigment ink, comprising pigment, pigment dispersant and non-water dissolvant. the non-water dissolvant contains esters above dyadic ester of polyatomic alcohol and branched fatty carboxyl acid, or esters above dyadic ester of branched fatty alcohol and multi-fatty carboxyl acid.

Description

technical field [0001] The invention relates to a non-aqueous pigment ink, in particular to a non-aqueous pigment ink suitable for an inkjet recording system. Background technique [0002] Inkjet recording systems are used in various printing fields because they can easily and inexpensively form images. Expect to use this system in an office and print at high speeds on plain paper. [0003] Generally, water-based (water-based) ink is used for inkjet ink, but it has such disadvantages: when printing on plain paper, the paper curls due to the moisture in the ink, especially in the case of high-speed printing, causing damage to paper conveyance. big impact. [0004] On the other hand, non-aqueous (oil-based) ink does not contain water in the ink, so printing on plain paper does not cause paper curling, so it is suitable for high-speed printing. [0005] Japanese Patent Application Laid-Open No. 2003-261808 discloses a non-aqueous ink with improved storage stability, the solv...

Claims

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Application Information

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IPC IPC(8): C09D11/02B41J2/01B41M5/00C09D11/00C09D11/322C09D11/324C09D11/326C09D11/36C09D11/38
Inventor 林大嗣
Owner RISO KAGAKU CORP
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