Dye fixing element with hydrazine
AssigneeFuji Photo Film Co., Ltd.
InventorsJiro Tsukahara, Takanori Hioki, Koki Nakamura
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Abstract
There is disclosed a dye fixing element containing a novel compound which improves the light fastness of an image obtained by the method in which the image is formed by transferring. The above dye fixing element contains a novel hydrazine derivative represented by the following Formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent independently a substituted or unsubstituted alkyl group, cycloalkyl group, alkenyl group, or aralkyl group; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be combined with each other to form a ring, provided that this ring is a non-aromatic heterocyclic ring and the atoms constituting the ring other than the nitrogens of Formula (I) are carbon atoms.
Claims9
A dye fixing element comprising a hydrazine derivative represented by the following Formula (I):
- ##STR70## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each independently represents a substituted or unsubstituted alkyl, cycloalkyl, alkenyl, or aralkyl group, provided that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 has a substituent selected from the group consisting of a carboxylic acid, a salt of a carboxylic acid, a sulfonic acid, and a salt of a sulfonic acid;
- wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be combined with each other to form a ring, provided that this ring is a non-aromatic heterocyclic ring and the atoms constituting the ring, other than the nitrogens of Formula (I) which are part of the ring, are carbon atoms.
A method of forming an image which comprises the steps of
- (1) providing a silver halide light-sensitive element capable of releasing an anionic azo dye;
- (2) providing a dye fixing element comprising a hydrazine derivative represented by the following Formula (I):
- ##STR75## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each independently represents a substituted or unsubstituted alkyl, cycloalkyl, alkenyl, or aralkyl group, provided that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 has a substituent selected from the group consisting of a carboxylic acid, a salt of a carboxylic acid, a sulfonic acid, and a salt of a sulfonic acid;
- wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be combined with each other to form a ring, provided that this ring is a non-aromatic heterocyclic ring and the atoms constituting the ring, other than the nitrogens of Formula (I) which are part of the ring, are carbon atoms;
- (3) imagewise exposing and developing the light-sensitive element to form a dye image;
- and
- (4) transferring the image to the dye fixing element to fix the image in the dye fixing element.
Dependencies are inferred from the claim text.