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1. WO2020137464 - AQUEOUS INK FOR INKJET PRINTING

Publication Number WO/2020/137464
Publication Date 02.07.2020
International Application No. PCT/JP2019/047928
International Filing Date 06.12.2019
IPC
C09D 11/322 2014.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
11Inks
30Inkjet printing inks
32characterised by colouring agents
322Pigment inks
B41M 5/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
5Duplicating or marking methods; Sheet materials for use therein
CPC
B41M 5/00
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING,
5Duplicating or marking methods; Sheet materials for use therein
C09D 11/322
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
11Inks
30Inkjet printing inks
32characterised by colouring agents
322Pigment inks
Applicants
  • 花王株式会社 KAO CORPORATION [JP]/[JP]
Inventors
  • 江川 剛 EGAWA, Tsuyoshi
  • 赤木 隆一 AKAGI, Ryuichi
  • 小酒 克之 KOZAKE, Katsuyuki
Agents
  • 特許業務法人大谷特許事務所 OHTANI PATENT OFFICE
Priority Data
2018-24373026.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) AQUEOUS INK FOR INKJET PRINTING
(FR) ENCRE AQUEUSE POUR IMPRESSION À JET D'ENCRE
(JA) インクジェット印刷用水系インク
Abstract
(EN)
The present invention relates to: [1] an aqueous ink for inkjet printing that is for printing on a printing medium with low liquid absorption, that contains a pigment, a polymer dispersant, a water-soluble organic solvent, and water, in which the water-soluble organic solvent includes a diethylene glycol monoisopropyl ether (S1) and one or more solvents (S2) selected from among alkanediols having 4-6 carbon atoms, 1,3-propanediol, and cyclic amide compounds, and in which the content of the diethylene glycol monoisopropyl ether (S1) in the water-soluble organic solvent is 40-95 mass%; and [2] an inkjet printing method in which the ink is used to perform printing on a printing medium with low liquid absorption. This aqueous ink for inkjet printing makes it possible to obtain a printed article having excellent scratch resistance.
(FR)
[1] L'invention concerne une encre aqueuse pour impression à jet d'encre qui est destinée à un support d'impression à faible absorption de liquide, et qui comprend un pigment, un dispersant polymère, un solvant organique hydrosoluble et une eau. Ledit solvant organique hydrosoluble contient un éther monoisopropylique de diéthylène glycol (S1), et au moins une sorte de solvant (S2) choisie parmi un alcanediol de 4 à 6 atomes de carbone, un 1,3-propanediol et un composé amide cyclique. La teneur en éther monoisopropylique de diéthylène glycol (S1) dans ledit solvant organique hydrosoluble est comprise entre 40 et 95% en masse. [2] L'invention concerne également un procédé d'impression à jet d'encre destiné à imprimer sur un support d'impression à faible absorption de liquide à l'aide de ladite encre. L'encre aqueuse pour impression à jet d'encre de l'invention permet d'obtenir un imprimé d'une excellente résistance à l'abrasion.
(JA)
[1]低吸液性印刷媒体へのインクジェット印刷用水系インクであって、顔料、ポリマー分散剤、水溶性有機溶媒、及び水を含有し、該水溶性有機溶媒が、ジエチレングリコールモノイソプロピルエーテル(S1)と、炭素数4~6のアルカンジオール、1,3-プロパンジオール、及び環状アミド化合物から選ばれる1種以上の溶媒(S2)と、を含み、該水溶性有機溶媒中のジエチレングリコールモノイソプロピルエーテル(S1)の含有量が40~95質量%である、インクジェット印刷用水系インク、及び[2]前記インクを用いて低吸液性印刷媒体に印刷するインクジェット印刷方法に関する。本発明のインクジェット印刷用水系インクによれば、耐擦過性に優れた印刷物を得ることができる。
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