THERMAL RECORDING MATERIAL

• Main Authors: NODA MARIKO, YANAGI TATSURO, OOHAYASHI HIROHARU, MINAMI TORU
• Format: Patent
• Language: English
• Published: 22.05.1991
• Subjects: COLOUR PRINTING; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS

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 thermal recording material 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 hydroxy compound residual group, and n is 1-8 integer. As a compound forming the hydroxy compound residual group as given by Z of the formula I (a group obtained by removing a part or all of hydroxyl groups from the hydroxy compound), only if it is a compound having one or more hydroxyl groups in the molecule, said compound is not specially limited. A material for thermal recording which is extremely high in colouring sensitivity and excellent in brightness (texture fog) is obtained thereby.