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Aqueous pigment composition and pigment ink

A technology of water-based pigments and compositions, which is applied in the direction of pigment paste, ink, organic dyes, etc., can solve the problems of slow drying speed, reduced friction resistance, physical properties of printed matter, etc., achieve moderate drying speed, excellent friction, and reprint Excellent dispersion effect

Active Publication Date: 2016-06-15
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For water-based inks, since the drying speed is slower than that of solvent inks, when the printed matter is non-absorbent plastic, metal, or coated paper with high hydrophobicity, coated paper, etc., there is a problem that the fixedness of the printed matter is low. question
However, as far as water-based inks are concerned, it is not enough to only improve the drying performance. Inks that dry too quickly may solidify on the plate during printing, resulting in failure to print.
In addition, with regard to inkjet recording inks, since ink droplets are ejected from very fine nozzles of several tens of μm to record images, the ink may dry and fix at the tip of the nozzles, which may directly adversely affect the ejection stability.
[0005] In addition, the physical properties of the obtained printed matter also become a problem
Especially when the printed matter is the above-mentioned plastic, metal or coated paper, coated paper, etc., there is a tendency that the rubbing resistance is lower than that of the printed matter on plain paper.

Method used

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  • Aqueous pigment composition and pigment ink
  • Aqueous pigment composition and pigment ink
  • Aqueous pigment composition and pigment ink

Examples

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Embodiment

[0121] Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited to the following examples unless the gist is exceeded. In addition, in the following examples, unless otherwise specified, "g" and "mass %" are mass reference|standards.

[0122] (Manufacturing method of synthesis example 1 acrylic resin (A-1))

[0123] Into a four-necked flask equipped with a stirrer, a thermometer, a cooling tube, and a nitrogen inlet tube, 16 g of "Newcol 707SF" [anionic emulsifier manufactured by Nippon Emulsifier Co., Ltd.], "NoigenTDS-200D" [Daiichi Kogyo Pharmaceutical Co., Ltd. Co., Ltd.) nonionic emulsifier] 6.5 g and 220 g of deionized water were heated to 80° C. under a nitrogen stream, and then an aqueous solution obtained by dissolving 0.8 g of ammonium persulfate in 16 g of deionized water was added. Furthermore, 60 g of 2-ethylhexyl acrylate, 100 g of styrene, 27 g of methyl methacrylate, 0.4 g of 3-methacrylox...

Synthetic example 2～3

[0124] (Manufacturing methods of Synthesis Examples 2-3 Acrylic Resin (A-2, A-3))

[0125] Except having made the addition mass % as shown in Table 1, it synthesize|combined on the same scale as the synthesis example 1, and obtained the acrylic resin type resin aqueous dispersion liquid (A-2, A-3). The numerical unit in the table|surface is mass %.

Embodiment 1

[0144] (the manufacture method of embodiment 1 water-based pigment ink)

[0145] 20 g of the aqueous acrylic resin dispersion (A-1) obtained in Synthesis Example 1, 20 g of distilled water, and 10 g of propylene glycol were added to 50 g of the pigment dispersion (J1) as a pigment dispersion and stirred to obtain a black pigment ink.

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Abstract

An aqueous pigment composition comprising a pigment, water, and an acrylic resin produced by copolymerizing a silane coupling agent having an ethylenically unsaturated group with a polymerizable monomer having an amide group, wherein, in the acrylic resin, the silane coupling agent having an ethylenically unsaturated group and the polymerizable monomer having an amide group are used in amounts of 0.05 to 2% by mass inclusive and 0.5 to 5% by mass inclusive, respectively, relative to the total amount of monomers used for the copolymerization; and a pigment ink produced using the aqueous pigment composition.

Description

technical field [0001] The present invention relates to a water-based pigment composition and a pigment ink using the same. Background technique [0002] In the case of a pigment composition using a pigment as a colorant, it can be used indoors and outdoors in the field of coatings for automobiles and building materials, lithographic inks, gravure inks, flexographic inks, silk Various applications such as screen inks, inkjet recording inks, and other ink fields. [0003] Among them, the water-based ink using water as the main solvent has the following excellent characteristics: there is no or can further reduce the toxicity such as fire hazard and mutagenicity of the solvent ink using an organic solvent, and the water-based pigment is currently being actively developed. Ink-based development. [0004] For water-based inks, since the drying speed is slower than that of solvent inks, when the printed matter is non-absorbent plastic, metal, or coated paper with high hydrophob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00B41J2/01B41M5/00C09B67/46C09D11/322
CPCC09D11/10C09D11/106C09D11/326C09D5/02C09D11/54C09D17/001C09B67/009C09D11/322C09D11/105
Inventor 福井启之庄子友理保坂正喜渡边正树大村亮佑
Owner DIC CORP
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