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1. (WO2010123064) INKJET INK AND INKJET RECORDING METHOD

Pub. No.:    WO/2010/123064    International Application No.:    PCT/JP2010/057148
Publication Date: Fri Oct 29 01:59:59 CEST 2010 International Filing Date: Fri Apr 23 01:59:59 CEST 2010
IPC: C09D 11/00
B41J 2/01
B41M 5/00
Applicants: Konica Minolta IJ Technologies, Inc.
コニカミノルタIJ株式会社
OHYA Hidenobu
大屋 秀信
KANEKO Manabu
金子 学
Inventors: OHYA Hidenobu
大屋 秀信
KANEKO Manabu
金子 学
Title: INKJET INK AND INKJET RECORDING METHOD
Abstract:
Provided is an inkjet ink comprising at least water, a pigment, a resin, a water-soluble organic solvent, and a surfactant, wherein the resin comprises a copolymer resin synthesized from a monomer that includes a (meth)acrylic monomer, and the copolymer resin has an acid value between 50 mgKOH/g and 200 mgKOH/g, a glass transition temperature (Tg) between 20 and 100°C, and a weight-average molecular weight (Mw) between 20,000 and 100,000, and as a result, a high-quality image is formed in that scratching resistance and adhesion on a non-absorbing recording medium are high, gloss is high, and there is no mixing of ink, and injection performance is good and maintenance returnability is excellent. Also provided is an inkjet recording method that uses the same.