HEAT-SENSITIVE COLORING RECORDING MATERIAL
PURPOSE:To provide a heat-sensitive recording material useful for a facsimile recording sheet, enabling the control of heat sensitivity and color tone, by coating a dipersion containing colarant and a color developer containing urea derivatives and urethane derivatives on a substrate. CONSTITUTION:A...
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| creator | SEKIKAWA NORIYOSHI SUGIYAMA TAKEKATSU ISHIGE SADAO IGARASHI AKIRA IKEDA TETSUPEI |
| description | PURPOSE:To provide a heat-sensitive recording material useful for a facsimile recording sheet, enabling the control of heat sensitivity and color tone, by coating a dipersion containing colarant and a color developer containing urea derivatives and urethane derivatives on a substrate. CONSTITUTION:A dispersion of an electron-donating colorless dye (e.g.: Crystal violet lactone) in an aqueous solution of PVA or the like is mixed with a dispersion of a crystalline product obtained by solidifying a molten mixture of a urea derivative having at least 7 carbon atoms of formulaI, wherein R -R are H, alkyl, aryl, etc. (e.g.: 1-phenylurea) and/or a urethane derivative of formulae II-IV, wherein R , R are alkyl or aryl; R is alkylene, arylene, etc.; R is alkylene or oxyalkylene (e.g.: phenylcarbomoyloxydodecane) and electron- accepting organic compound[e.g.: 1,1-bis(p-hydroxyphenyl)propane], and the mixture is coated and dried on a substrate. |
| format | Patent |
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| subjects | COLOUR PRINTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LINING MACHINES PERFORMING OPERATIONS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING TYPEWRITERS |
| title | HEAT-SENSITIVE COLORING RECORDING MATERIAL |
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