REVERSIBLE HEAT-SENSITIVE RECORDING MATERIAL, AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a reversible heat-sensitive recording material which is excellent in printing-durable quality, has no unevenness and is stable, and its manufacturing method. SOLUTION: This reversible heat-sensitive recording material has a structure wherein an organic low molecular...

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Hauptverfasser:	KOBORI HIDEYUKI, SUGIYAMA KUNITOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CORRECTING FLUIDS DYES FILLING PASTES 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 PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL STAMPS TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a reversible heat-sensitive recording material which is excellent in printing-durable quality, has no unevenness and is stable, and its manufacturing method. SOLUTION: This reversible heat-sensitive recording material has a structure wherein an organic low molecular substance is dispersed in a resin matrix, and a domain is formed. Also, the reversible heat-sensitive recording material can reversibly repeat a transparent state and an opaque state depending on the temperature history. This manufacturing method of such a reversible heat-sensitive recording material is constituted of a process wherein a reversible heat-sensitive recording layer liquid is coated on a supporting body, a process wherein the reversible heat-sensitive recording layer is made into a film by drying the coated liquid, and a process wherein the resin matrix is hardened by heat. In this case, the coated film temperature of the reversible heat- sensitive recording layer is made 110 deg.C or higher for one time in the drying/film-making process, or a process continuing from the drying/film-making process, or a substantially different process from the drying/film-making process. Then, the concentration of a residual solvent contained in the reversible heat-sensitive recording layer after hardening the resin is 0.4 wt.% or lower based on the recording layer coated film weight.