THERMAL RECORDING MATERIALS

PURPOSE:To enable a thermal recording material which is high in colouring sensitivity and excellent in brightness to be obtained by a method wherein a compound having a specified composition is contained. CONSTITUTION:A compound as given by the formula I is contained in a material for thermal record...

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Bibliographic Details
Main Authors NODA MARIKO, YANAGI TATSURO, OOHAYASHI HIROHARU, MINAMI TORU
Format Patent
LanguageEnglish
Published 22.05.1991
Subjects
COLOUR PRINTING
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:PURPOSE:To enable a thermal recording material which is high in colouring sensitivity and excellent in brightness to be obtained by a method wherein a compound having a specified composition is contained. CONSTITUTION:A compound as given by the formula I is contained in a material for thermal recording which develops colour by thermally melting an electron donative achromatic colour former and an electron acceptive developing material on a base material. In the formula I, R is hydrogen atom or methyl group, A is 1-7C alkylene group, Z is isocyanate compound residual group, and n is 1-7 integer. As a compound which forms the isocyanate compound residual group Z (a group of removing all isocyanate groups from the isocyanate compound), fatty acid monoisocyanate compound of octadecyl isocyanate or the like, and aromatic monoisocyanate compound of m-isopropenyl-alpha,alpha'- dimethylbenzil isocyanate, etc., are exemplified. A material for thermal recording which is extremely high in colouring sensitivity and excellent in brightness (texture fog) is obtained thereby.
Bibliography:Application Number: JP19890258335