Title:
INK COMPOSITION FOR INKJET RECORDING, INK SET, AND IMAGE RECORDING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/218612
Kind Code:
A1
Abstract:
An ink composition for inkjet recording containing water, a pigment, and a water soluble polymer that has a carboxy group. The water soluble polymer fulfills formula (1). The ink composition for inkjet recording is used for recoding ink images on a recording medium that has a pretreatment fluid applied thereto that includes at least one type of flocculant selected from the group consisting of acids, cationic polymers, and polyvalent metal salts. 230 mg KOH/g ≤ Σ (a × b) ≤ 750 mg KOH ... (1).
In the formula, a represents the water soluble polymer acid value, the units being mg KOH/g, and b represents the water soluble polymer content relative to the total ink composition volume, the units being % by mass.
Inventors:
KAERIYAMA ATSUSHI (JP)
Application Number:
PCT/JP2020/017987
Publication Date:
October 29, 2020
Filing Date:
April 27, 2020
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
B41M5/00; B41J2/01; C09D11/30; C09D11/54
Domestic Patent References:
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Other References:
"Encyclopedia of Pigments", 2000, ASAKURA SHOTEN
"Industrial Organic Pigments", 2019, WILEY-VCH
JOURNAL OF THE JAPANESE SOCIETY OF ADHESION, vol. 29, no. 6, 1993, pages 249 - 259
HITACHI HIGH-TECH SCIENCE CORPORATION
"JAPAN TAPPI Pulp and Paper Test Method No. 51:2000", JAPAN TECHNICAL ASSOCIATION OF PULP AND PAPER
"Industrial Organic Pigments", 2019, WILEY-VCH
JOURNAL OF THE JAPANESE SOCIETY OF ADHESION, vol. 29, no. 6, 1993, pages 249 - 259
HITACHI HIGH-TECH SCIENCE CORPORATION
"JAPAN TAPPI Pulp and Paper Test Method No. 51:2000", JAPAN TECHNICAL ASSOCIATION OF PULP AND PAPER
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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