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1. WO2000039226 - WATER-BASED INK FOR INK-JET RECORDING

Publication Number WO/2000/039226
Publication Date 06.07.2000
International Application No. PCT/JP1999/007373
International Filing Date 28.12.1999
IPC
C09D 11/00 2014.01
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
C09D 11/322 2014.01
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
CPC
C09D 11/32
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
Applicants
  • KAO CORPORATION [JP/JP]; 14-10, Nihonbashi Kayabacho 1-chome Chuo-ku Tokyo 103-8210, JP (AllExceptUS)
  • NAKANO, Yukihiro [JP/JP]; JP (UsOnly)
  • TSURU, Isao [JP/JP]; JP (UsOnly)
  • AZUMA, Kohji [JP/JP]; JP (UsOnly)
  • SAWADA, Michitaka [JP/JP]; JP (UsOnly)
  • TSUTSUMI, Takehiro [JP/JP]; JP (UsOnly)
Inventors
  • NAKANO, Yukihiro; JP
  • TSURU, Isao; JP
  • AZUMA, Kohji; JP
  • SAWADA, Michitaka; JP
  • TSUTSUMI, Takehiro; JP
Agents
  • HOSODA, Yoshinori; Hosoda International Patent Office Otemae M2 Building 8-1, Tanimachi 2-chome Chuo-ku, Osaka-shi Osaka 540-0012, JP
Priority Data
10/37250828.12.1998JP
11/22569309.08.1999JP
11/25663810.09.1999JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WATER-BASED INK FOR INK-JET RECORDING
(FR) ENCRE A BASE D'EAU DESTINEE A L'IMPRESSION AU JET D'ENCRE
Abstract
(EN)
A water-based ink for ink-jet recording which comprises an aqueous dispersion of pigmented particles of a vinyl polymer obtained by copolymerizing a monomer mixture comprising (a) a monomer having a salt-forming group, (b) a macromer, and (c) a monomer copolymerizable with the monomers (a) and (b); and a process for producing a water-based ink for ink-jet recording comprising an aqueous dispersion of pigmented vinyl polymer particles, which comprises dissolving in an organic solvent a vinyl polymer obtained by copolymerizing a monomer mixture comprising (a) a monomer having a salt-forming group, (b) a macromer, and (c) a monomer copolymerizable with the monomers (a) and (b), adding a pigment to the resultant solution, prekneading the mixture, subsequently adding a neutralizing agent and water thereto, kneading the resultant mixture to produce an oil-in-water dispersion, and distilling off the organic solvent from the kneaded mixture obtained.
(FR)
L'invention concerne, d'une part, une encre à base d'eau destinée à l'impression au jet d'encre qui comprend une dispersion aqueuse de particules pigmentées d'un vinylpolymère obtenue par la copolymérisation d'un mélange de monomère comprenant (a) un monomère possédant un groupe formateur de sel, (b) un macromère et (c) un monomère copolymérisable avec les monomères (a) et (b), et, d'autre part, un procédé de fabrication d'une encre à base d'eau destinée à l'impression au jet d'encre comprenant une dispersion aqueuse de particules pigmentées d'un vinylpolymère, ledit procédé consistant à dissoudre dans un solvant organique un vinylpolymère obtenu par la copolymérisation d'un mélange de monomère comprenant (a) un monomère possédant un groupe formateur de sel, (b) un macromère et (c) un monomère copolymérisable avec les monomères (a) et (b); à ajouter un pigment à la solution ainsi obtenue; à malaxer préalablement le mélange; à y ajouter ensuite un agent neutralisant et de l'eau; à malaxer le mélange obtenu pour produire une dispersion d'huile dans l'eau; et à distiller le solvant organique à partir du mélange malaxé ainsi obtenu.
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