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Polyurethane resin addition pigment, process for producing polyurethane resin addition pigment, pigment dispersion composition, and jet printing ink composition

一种聚氨酯树脂、制造方法的技术，应用在聚氨酯树脂加成颜料,喷墨墨组合物领域，能够解决印刷速度快、无法频繁喷头清洗等问题，达到优异图像浓度的效果

Active Publication Date: 2013-04-24
TOKAI CARBON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Furthermore, in industrial use, the printing speed of the printer is fast, and unlike personal use, frequent cleaning of the nozzle cannot be performed. Therefore, as an inkjet ink composition, it has also begun to be required to be continuous and intermittent. Redissolution of contamination and clogging in the nozzle head (the dried ink composition is redissolved in the undried ink composition, even if continuous ejection and intermittent ejection are repeated, there will be no contamination or clogging in the nozzle head ), the same technical problem also exists in the field of spray coating compositions and the like

Method used

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  • Polyurethane resin addition pigment, process for producing polyurethane resin addition pigment, pigment dispersion composition, and jet printing ink composition
  • Polyurethane resin addition pigment, process for producing polyurethane resin addition pigment, pigment dispersion composition, and jet printing ink composition
  • Polyurethane resin addition pigment, process for producing polyurethane resin addition pigment, pigment dispersion composition, and jet printing ink composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0186] (1) Preparation of polyurethane resin addition pigment 1

[0187] Add 1042 parts by mass of AquaBlack (registered trademark) 162 (manufactured by Tokai Tanso Co., Ltd., solid content concentration: 19.2 mass %) belonging to a carbon black pigment having an acidic group on the surface as pigment (I), 82.7 parts by mass of piperazine·6H 2 A 10% by mass aqueous solution of O (Mw=194) was used as the basic compound (II), and stirred at room temperature for 30 minutes.

[0188] With respect to stirring the above 1042 parts by mass of AquaBlack (registered trademark) 162 and 82.7 parts by mass of piperazine·6H 2 0. The obtained agitated material was further mixed with 119.6 parts by mass of the above-mentioned water-dispersible polyurethane resin 1 (60.2 mass % of solid content) as the polyisocyanate polyurethane resin (III), and 8 parts by mass of Asahi Kasei Chemicals Corporation as the isocyanate compound (IV). Manufacture DURANATE TSS-100 (NCO group content ratio: 19.2% ...

Embodiment 2）

[0193] (1) Production of polyurethane resin addition pigment 2

[0194] Add 39.1 parts by mass to 1042 parts by mass of the aqueous dispersion (solid content concentration: 20.0% by mass, carboxyl group equivalent: 600 micromol / g) of the above-mentioned low-oxidation carbon black pigment A having an acidic group on the surface as the pigment (I). Piperazine·6H as basic compound (II) 2 A 10% by mass aqueous solution of O (Mw=194) was stirred at room temperature for 30 minutes.

[0195] Relative to stirring the above-mentioned 1042 parts by mass of the aqueous dispersion of suboxidized carbon black A and 39.1 parts by mass of piperazine·6H 2 0 The resulting stirred product was further mixed with 76.5 parts by mass of the above-mentioned water-dispersible polyurethane resin 2 (58.8% by mass of solid content) as the polyisocyanate polyurethane resin (III), and 5 parts by mass of Asahi Kasei Chemicals as the polyisocyanate compound (IV). DURANATE TSE-100 (NCO group content ratio:...

Embodiment 3）

[0200] (1) Production of polyurethane resin addition pigment 3

[0201] Add 67.6 parts by mass to 1042 parts by mass of the aqueous dispersion of the above-mentioned low-oxidation carbon black pigment A (solid content concentration: 20.0% by mass, carboxyl group equivalent: 600 micromol / g) having an acidic group on the surface as the pigment (I). Piperazine·6H as basic compound (II) 2 A 10% by mass aqueous solution of O (Mw=194) was stirred at room temperature for 30 minutes.

[0202] Relative to stirring the above-mentioned 1042 parts by mass of the aqueous dispersion of suboxidized carbon black A and 67.6 parts by mass of piperazine·6H 2 0 The resulting stirred product was further mixed with 126.2 parts by mass of the above-mentioned water-dispersible polyurethane resin 1 (60.2 mass % of solid content) as the polyisocyanate polyurethane resin (III), and 4 parts by mass of Asahi Kasei Chemicals as the polyisocyanate compound (IV). DURANATE TSS-100 (NCO group content ratio: ...

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Abstract

Provided is a pigment which exhibits excellent image density, dispersibility, storage stability, resolubility, and excellent resistances of ink film to markers and scratch. The pigment is a polyurethane resin addition pigment characterized by being produced by: bringing, in an aqueous medium, a pigment (I) which has acid groups on the surface into contact with a basic compound (II) which has, in the molecule, two or more amino groups selected from among primary and secondary amino groups to form a pigment which has unreacted amino groups on the surface; and then bringing this pigment which has unreacted amino group on the surface into contact with a water-dispersible polyurethane resin (III) which has terminal isocyanate groups and a polyisocyanate compound (IV) to bond, by urea linkages, the water-dispersible polyurethane resin (III) and the polyisocyanate compound (IV) to the pigment which has unreacted amino groups on the surface.

Description

technical field [0001] The present invention relates to a polyurethane resin addition pigment, a method for producing the polyurethane resin addition pigment, a pigment dispersion composition and an inkjet ink composition. Background technique [0002] In recent years, water-based inks have replaced organic solvent-based inks in a wide range of fields because of their safety and low environmental load. In particular, for commercial purposes, odorless water-based coloring materials are essential as inks used in various printings in offices, and even for industrial uses, from the perspective of the working environment, the safety of handling inks, and paints. 1. Starting from the problem of waste liquid treatment, the trend of minimizing the use of organic solvents is also strengthening. In addition, compared with organic solvent-based coloring materials, water-based coloring materials do not require special equipment such as explosion-proof equipment, exhaust equipment, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C3/10B41J2/01B41M5/00C08G18/00C08K9/04C08L75/04C09C1/56C09D11/02C09D17/00C09C1/48C09D11/00C09D11/30
CPCC08K5/0041C08G18/6696C09D17/005C08G18/0823C08K9/08C08G18/4833C08K3/04C08G18/755C09C1/48C09D11/324C08G18/348C09C1/56C01P2006/12C08G18/42C01P2006/19C08G18/4018C09D11/326C09C3/10C08G18/36C08G18/833B41M5/0023B41J2/01C08K9/04C09D11/02
Inventor 田中重弘竹中麻美石桥由香利
Owner TOKAI CARBON CO LTD
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