ACTIVE-LIGHT-RAY-CURABLE INKJET WHITE INK AND IMAGE FORMING METHOD

Through the active-light-ray-curable inkjet white ink and method for manufacturing the same according to the present invention, the ink including a pigment, a dispersing agent, a wax, a photopolymerizable compound, and a photopolymerization initiator, and being capable of a sol-gel phase transition...

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Bibliographische Detailangaben
1. Verfasser:	GOI, Katsunori
Format:	Patent
Sprache:	eng ; fre ; ger
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:	Through the active-light-ray-curable inkjet white ink and method for manufacturing the same according to the present invention, the ink including a pigment, a dispersing agent, a wax, a photopolymerizable compound, and a photopolymerization initiator, and being capable of a sol-gel phase transition by a temperature change, the pigment including titanium dioxide surface-coated with alumina, the content of the titanium dioxide being 10% by mass to 15% by mass of the total mass of the ink, the ink including sodium ions in a mass ratio of 200 ppm or lower with respect to the pigment, and the dispersing agent including a comb-shaped block copolymer having a tertiary amine group, even when titanium dioxide is used as the pigment, the viscosity of the ink can be restrained from increasing, luster equivalent to that of another color is obtained, and clogging of a recording head for ink discharge is reduced in an active-light-ray-curable inkjet ink capable of a sol-gel phase transition by a temperature change.