POLYMER EMULSION AND AQUEOUS INKJET RECORDING LIQUID CONTAINING SAID POLYMER EMULSION

Title:

POLYMER EMULSION AND AQUEOUS INKJET RECORDING LIQUID CONTAINING SAID POLYMER EMULSION

Document Type and Number:

WIPO Patent Application WO/2010/079569

Kind Code:

A1

Abstract:

Provided is a pigmented aqueous inkjet recording liquid with which clogging of a nozzle is improved and stable discharge is possible, with said aqueous inkjet recording liquid having excellent properties-in particular, an optical density (OD) value and wear resistance-which are required of an inkjet recording liquid. This aqueous inkjet recording liquid is a polymer emulsion which is obtained by using specific amounts of an emulsifier, water, and an aqueous polymerization initiator to radical-polymerize a radical-polymerizable unsaturated monomer (a), for which a radical-polymerizable unsaturated monomer (a2) having a specific amount of an alkoxysilyl group is an essential component; wherein said recording liquid contains a pigment and a polymer emulsion in which, according to the particle counting method, the number of 1.5 μm or larger ultra-coarse particles in the polymer emulsion when converted to a solid content concentration 0.1% is 5.0 × 105/cm3.

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Inventors:

OSHIMA YOSHITERU (JP)
KITAMOTO TSUYOSHI (JP)
WASHIO SATOSHI (JP)

Application Number:

PCT/JP2009/007235

Publication Date:

July 15, 2010

Filing Date:

December 25, 2009

Export Citation:

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Assignee:

TOYO INK MFG CO (JP)
OSHIMA YOSHITERU (JP)
KITAMOTO TSUYOSHI (JP)
WASHIO SATOSHI (JP)

International Classes:

B41J2/01; C08F2/24; B41M5/00; C08F220/26; C09D11/00; C09D11/023; C09D11/037; C09D11/10; C09D11/106; C09D11/107; C09D11/322; C09D11/324

Foreign References:

JPH01174506A	1989-07-11
JP2009091487A	2009-04-30
JPH09235499A	1997-09-09
JP2006282986A	2006-10-19
JP2002294105A	2002-10-09
JP2009003026A	2009-01-08

Other References: