Stock material or miscellaneous articles – Composite – Of polyamide
Patent
1981-05-07
1982-10-05
Hess, Bruce H.
Stock material or miscellaneous articles
Composite
Of polyamide
282 275, 427150, 427151, 4283208, 428488, 428537, 428913, B41M 518
Patent
active
043528600
ABSTRACT:
A thermosensitive recording material comprising a support member and a thermosensitive layer formed on the support member, which thermosensitive layer contains a colorless or light-colored leuco dye and acidic material, capable of forming a color upon application of heat to the thermosensitive layer, and at least one amide compound selected from the group consisting of amide compounds represented by the formulas ##STR1## wherein R.sub.1 represents an alkyl group with 1 to 30 carbon atoms, a phenyl group or a substituted phenyl group; R.sub.2 represents hydrogen or an alkyl group with 1 to 4 carbon atoms; R.sub.3 represents an alkyl group with 1 to 30 carbon atoms; R.sub.4 and R.sub.5 individually represent hydrogen, a halogen atom, an alkyl group with 1 to 4 carbon atoms or an alkoxy group with 1 to 4 carbon atoms; and n is an integer, 0 or 1, whereby image formation is improved with respect to the image density, the quantity of energy required for image formation, and thermal head operation on the thermosensitive recording material, and a compound represented by the formula ##STR2## wherein R.sub.6 and R.sub.7 individually represent an alkyl group with 10 to 30 carbon atoms, whereby prevention of discoloration of the recording material by pressure or friction is achieved.
REFERENCES:
patent: 3859112 (1975-01-01), Kohmura et al.
Kawamura Eiichi
Kubo Keishi
Hess Bruce H.
Ricoh & Company, Ltd.
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