DISPERSION LIQUID OF COLORED RESIN FINE PARTICLES FOR AQUEOUS INKS, AND AQUEOUS INK COMPOSITION FOR WRITING UTENSILS USING SAME

Title:

DISPERSION LIQUID OF COLORED RESIN FINE PARTICLES FOR AQUEOUS INKS, AND AQUEOUS INK COMPOSITION FOR WRITING UTENSILS USING SAME

Document Type and Number:

WIPO Patent Application WO/2016/163291

Kind Code:

A1

Abstract:

Provided are: a dispersion liquid of colored resin fine particles for aqueous inks, which has a property for improving drawn line dryability in addition to colorant functions such as color developability, weather resistance and stability; and an aqueous ink composition for writing utensils, which uses this dispersion liquid of colored resin fine particles for aqueous inks. This dispersion liquid of colored resin fine particles for aqueous inks is characterized by being obtained by dispersing colored resin fine particles in water, said colored resin fine particles being configured at least of (A) a vinyl monomer that contains a carboxyl group as an acidic functional group and has a solubility in water of 10% by mass or less, (B) an ester monomer of an acrylic acid or methacrylic acid and a linear or cyclic alcohol having 2-18 carbon atoms, and a basic dye or an oil-soluble dye. In addition, this aqueous ink composition for writing utensils is characterized by containing: a dispersion liquid of colored resin fine particles for aqueous inks having the above-described composition; a water-soluble organic solvent; and water.

Inventors:

HAGA HISATO (JP)
IWASA ATSUSHI (JP)

Application Number:

PCT/JP2016/060603

Publication Date:

October 13, 2016

Filing Date:

March 31, 2016

Export Citation:

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Assignee:

MITSUBISHI PENCIL CO (JP)

International Classes:

C09D11/16; C09B67/46

Domestic Patent References:

WO2004092285A1

2004-10-28

Foreign References:

JP2002356602A	2002-12-13
JP2004075818A	2004-03-11
JPH10259337A	1998-09-29
JP2002053788A	2002-02-19

Other References: