Thermosensitive recording material

Details Thermosensitive recording material Thermosensitive recording material

2006-11-14

2006-11-14

Hess, Bruce H. (Department: 1774)

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Having nonchromogenic liquid spread-control or...

C503S216000, C503S221000

Reexamination Certificate

active

07135431

ABSTRACT:
A thermosensitive recording material of the present invention has a thermosensitive color developing layer on a support, and the thermosensitive color developing layer contains at least an electron-donating colorless dye and 4-hydroxybenzenesulfone anilide as an electron-accepting compound. The thermosensitive recording material of the invention meets any one of the following conditions: the thermosensitive recording surface of the thermosensitive recording material has an Oken smoothness of at least 300 seconds; 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)-butane and/or 1,1,3-tris(2-methyl-4-hydroxy-5-cyclohexyl-phenyl)butane is contained as an image stabilizer; at least one selected from 2-anilino-3-methyl-6-di-n-butylaminofluorane and 2-anilino-3-methyl-6-di-n-amylaminofluorane is contained as the electron-donating colorless dye; a sensitizer and 2-anilino-3-methyl-6-(N-ethyl-N-p-benzyl)aminofluorane as the electron-donating colorless dye are contained; and the image stabilizer and at least one selected from 2-anilino-3-methyl-6-di-n-butylaminofluorane, 2-anilino-3-methyl-6-di-n-amylaminofluorane, and 2-anilino-3-methyl-6-(N-ethyl-N-p-benzyl)aminofluorane as the electron-donating colorless dye are contained.

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