COLOR-CHANGEABLE PRINTING INK

PROBLEM TO BE SOLVED: To provide a printing ink that can change color by heating and/or application of a solvent. SOLUTION: This color-changeable printing ink is obtained by dispersing in a vehicle colored polymer particulates with an average particle size of not more than 1 μm, the particulates bei...

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Bibliographische Detailangaben
1. Verfasser:	TAKASE MASUMI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BOOK COVERS BOOKBINDING CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR DYES FILES FILLING PASTES INKS LOOSE LEAVES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MOVABLE-STRIP WRITING OR READING APPARATUS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR SPECIAL PRINTED MATTER TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a printing ink that can change color by heating and/or application of a solvent. SOLUTION: This color-changeable printing ink is obtained by dispersing in a vehicle colored polymer particulates with an average particle size of not more than 1 μm, the particulates being obtained by polymerization of a mixture of a pigment, leuco pigment, color developing agent, α,β-unsaturated monomer and polymerization initiator in water and in the presence of a polymerizable surfactant. The average particle size of the colored polymer particulates in the ink is not more than 1 μm. A printed matter is obtained by printing a substrate for printing with the printing ink. COPYRIGHT: (C)2005,JPO&NCIPI