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Salt-forming type dye, and its concentrated solution composition and ink composition
| Details |
Inventors: Ono, Takashi; Yagyu, Tatsuya; Fukuda, Katsumi;
Assignee: Orient Chemical Industries, Ltd. (Osaka, JP)
Primary Examiner: Klemanski; Helene
Assistant Examiner:
Attorney, Agent or Firm: Birch, Stewart, Kolasch & Birch
The present invention provides a novel salt-forming type dye represented by the formula: ##STR1## wherein D is a residue of a monoazo or disazo dye, m is an integer of 1 to 3, n is an integer of 1 to 4, and M.sup.+ is a cation selected from the group consisting of cations represented by the formulas: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and represent hydrogen, an alkyl group, an alkoxyalkyl group, a cyclohexyl group, an aralkyl group or a hydroxyalkyl group, and at least one of R.sup.1 to R.sup.4 is a branched or non-branched alkyl, alkoxyalkyl, cycloalkyl, aralkyl or polyoxyalkylene group having not less than 4 carbon atoms, ##STR3## wherein R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are the same or different and represent hydrogen, an alkyl group, or a substituted or non-substituted phenyl group, and at least one of R.sup.5 to R.sup.8 is a substituted or non-substituted phenyl group, and ##STR4## wherein R.sup.9 and R.sup.10 are the same or different and represent hydrogen or an alkyl group, a is an integer of not less than 3, and both R.sup.9 and R.sup.10 are not hydrogen, and a process for producing the same. A concentrated solution composition and an ink composition are also disclosed. |
|
DETAILED DESCRIPTION What is claimed is: 1.
A salt-forming dye having excellent solubility to hydrophilic organic solvent represented by the formula: ##STR36## wherein D is a residue of a monoazo or disazo dye, m is an integer of 1 to 3, n is an integer of 1 to 4, and M.
sup.
+ is a cation selected from the group consisting of cations represented by formulas (II), (III), (IV) and mixtures thereof: ##STR37## wherein R.
sup.
1, R.
sup.
2, R.
sup.
3 and R.
sup.
4 are the same or different and represent hydrogen, an alkyl group, an alkoxyalkyl group, a cyclohexy group, an aralkyl group or a hydroxyalkyl group, and at least one of R.
sup.
1 to R.
sup.
4 is a branched or non-branched alkyl, alkoxyalkyl, cycloalkyl, aralkyl or polyoxyalkylene group having not less than 4 carbon atoms, ##STR38## wherein R.
sup.
5, R.
sup.
6, R.
sup.
7 and R.
sup.
8 are the same or different and represent hydrogen, an alkyl group, or a substituted or non-substituted phenyl group, and at least one of R.
sup.
5 to R.
sup.
8 is a substituted or non-substituted phenyl group, and ##STR39## wherein R.
sup.
9 and R.
sup.
10 are the same or different and represent hydrogen or an alkyl group, a is an integer of not less than 3, and both R.
sup.
9 and R.
sup.
10 are not hydrogen.
2.
A process for producing the salt-forming dye according to claim 1, which comprises reacting a compound represented by the formula: ##STR40## wherein D, m and n are as defined above, with a cation forming agent selected from the group consisting of the compounds represented by the formulas: M.
sup.
+ .
multidot.
Y.
sup.
- (VI) wherein Y.
sup.
- is an inorganic or organic anion, and M.
sup.
+ is as defined above, ##STR41## wherein R.
sup.
1 to R.
sup.
3 are as defined above, ##STR42## wherein R.
sup.
5 to R.
sup.
8 are as defined above, and ##STR43## wherein R.
sup.
9, R.
sup.
10 and a are as defined above.
3.
A concentrated solution composition which comprises: 15 to 35% by weight of the salt-forming dye according to claim 1, and 75 to 85% by weight of a hydrophilic organic solvent or a hydrophilic solvent having a waste content of not more than 50% by weight
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