WATER-BASED INK FOR INK-JET RECORDING

The present invention relates to: [1] a water-based ink for ink-jet recording which contains titanium oxide (A) and a pigment dispersant (B), wherein the pigment dispersant (B) comprises a constituentunit derived from an anionic-group-containing monomer (a) and a constituent unit derived from a poly...

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Bibliographische Detailangaben
Hauptverfasser:	WATANABE KAZUKI, II TOMOAKI, NARITA MASAYUKI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CORRECTING FLUIDS CORRECTION OF TYPOGRAPHICAL ERRORS DYES FILLING PASTES i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME INKS LINING MACHINES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention relates to: [1] a water-based ink for ink-jet recording which contains titanium oxide (A) and a pigment dispersant (B), wherein the pigment dispersant (B) comprises a constituentunit derived from an anionic-group-containing monomer (a) and a constituent unit derived from a poly(alkylene glycol) (meth)acrylate (b), the average number of moles of the alkylene oxide added in the poly(alkylene glycol) (meth)acrylate (b) being 15-100, the pigment dispersant (B) has an acid value of 100 to 400 mg-KOH/g, and the pigment dispersant (B) is contained in an amount of 0.3-18 parts by mass per 100 parts by mass of the titanium oxide (A); and [2] an ink-jet recording method which comprises using an ink-jet recorder to deliver the water-based ink described in [1] above to a recording medium, thereby making a record. With the present invention, it is possible to provide: a water-based ink for ink-jet recording which includes titanium oxide as a pigment and has excellent redispersibility; and an ink-jet