Heat sensitive recording material
AssigneeFuji Photo Film Co., Ltd.
InventorsAkira Igarashi, Hiroharu Matsukawa
Life of this patent
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Abstract
A heat sensitive recording material is described, which has on a support a heat sensitive coloring layer containing (a) an electron-donating colorless dye, (b) an electron-accepting compound, and (c) at least one ether compound represented by formula (I) or (II) ##STR1## wherein X represents a hydrogen atom, a halogen atom, an alkyl group containing not more than 6 carbon atoms, or an alkoxy group containing not more than 6 carbon atoms; Y represents a hydrogen atom, a halogen atom, an alkyl group containing not more than 6 carbon atoms, or an alkoxy group containing not more than 6 carbon atoms; and R represents a hydrogen atom or an alkyl group containing not more than 18 carbon atoms.
Claims6
A heat sensitive recording material having on a support a heat sensitive coloring layer which contains (a) an electron-donating colorless dye, (b) an electron-accepting compound and (c) at least one ether compound represented by formula (I) or (II) ##STR12## wherein X represents a hydrogen atom, a halogen atom, an alkyl group containing not more than 6 carbon atoms, or an alkoxy group containing not more than 6 carbon atoms;
- Y represents a hydrogen atom, a halogen atom, an alkyl group containing not more than 6 carbon atoms, or an alkoxy group containing not more than 6 carbon atoms;
- and R represents a hydrogen atom or an alkyl group containing not more than 18 carbon atoms, said ether compound is used in an amount of from 10 wt% to 200 wt% based on the weight of the electron-accepting compound.
Dependencies are inferred from the claim text.