WATER RESISTANT COMPOSITION AND HEAT-SENSITIVE RECORDING SHEET CONTAINING THE SAME

WATER RESISTANT COMPOSITION AND HEAT-SENSITIVE RECORDING SHEET CONTAINING THE SAME

57 This invention relates to a water resistant composition which comprises (A) polyvinyl alcohol, (B) a chitosan, the aqueous 1% solution of which has a viscosity not greater than 70 centipoise at 20°C, and (C) an aldehyde compound, as well as a heat-sensitive recording sheet which comprises said co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KOHNO, HIROJI, ONO, ISAO, OKAYA, TAKUJI, MARUYAMA, HITOSHI, YAMAUCHI, JUNNOSUKE
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COLOUR PRINTING
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
LINING MACHINES
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
TYPEWRITERS
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Beschreibung
Zusammenfassung:57 This invention relates to a water resistant composition which comprises (A) polyvinyl alcohol, (B) a chitosan, the aqueous 1% solution of which has a viscosity not greater than 70 centipoise at 20°C, and (C) an aldehyde compound, as well as a heat-sensitive recording sheet which comprises said composition. The composition has excellent water resistant properties and the heat-sensitive recording sheet has improved color forming properties and excellent resistance to water and solvents.