US4388115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous ink composition
Assignee: Fujifilm Holdings Corp
•
Filing: 1981-06-15
•
Granted: 1983-06-14
•
Expires: 2001-06-15
Abstract
Abstract An aqueous ink composition having a water-soluble dye and a wetting agent dissolved in water is disclosed. The composition uses at least one water-soluble dye of the formula (I): ##STR1## wherein R 1 is a phenyl group, a substituted phenyl group, an alkyl group or a substituted alkyl group; R 2 is an alkyl group, a phenyl group, a substituted phenyl group, a cyano group, a hydroxyl group, an alkoxy group, an amino group, an acylamino group, an anilino group, a ureido group, an alkoxycarbonyl group or a carbamoyl group; X is a halogen atom, an alkyl group or an alkoxy group; n is 1, 2, 3, 4 or 5; and m is 1, 2, or 3, provided that the sulfo group in the formula (I) may be an alkali metal salt, an ammonium salt or an organic amine salt.
Inventors
- 👤 Masatoshi Sugiyama
- 👤 Akira Ogawa
- 👤 Shinichi Imai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:00
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/16; C09D11/17; C09D11/02; C09D11/03; C09D11/037; C09D11/30; C09D11/32; C09D11/328
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
An aqueous yellow ink composition comprising: a water-soluble dye and a wetting agent dissolved in water, wherein said water-soluble dye has the formula (I): ##STR11## wherein R 1 is a phenyl group, a substituted phenyl group, an alkyl group or a substituted alkyl group; R 2 is an alkyl group, a phenyl group, a substituted phenyl group, a cyano group, a hydroxyl group, an alkoxy group, an amino group, an acylamino group, an anilino group, a ureido group, an alkoxycarbonyl group or a carbamoyl group; X is a halogen atom, an alkyl group or an alkoxy group; n is 1, 2, 3, 4 or 5; and m is 1, 2 or 3, provided that the sulfo group in the formula (I) may be an alkali metal salt, an ammonium salt or an organic amine salt.
Claim 2
Dependent Claim
135 words
An aqueous yellow ink composition comprising: a water-soluble dye and a wetting agent dissolved in water, wherein said water-soluble dye has the formula (I): ##STR11## wherein R 1 is a phenyl group, a substituted phenyl group, an alkyl group or a substituted alkyl group; R 2 is an alkyl group, a phenyl group, a substituted phenyl group, a cyano group, a hydroxyl group, an alkoxy group, an amino group, an acylamino group, an anilino group, a ureido group, an alkoxycarbonyl group or a carbamoyl group; X is a halogen atom, an alkyl group or an alkoxy group; n is 1, 2, 3, 4 or 5; and m is 1, 2 or 3, provided that the sulfo group in the formula (I) may be an alkali metal salt, an ammonium salt or an organic amine salt.
Claim 3
Dependent Claim
56 words
An aqueous ink composition as in claim 1, wherein R 1 is a phenyl group, a substituted phenyl group, an alkyl group or a substituted alkyl group; R 2 is an alkyl group or a phenyl group; X is a halogen atom; n is 1, 2, 3 or 4; and m is 1, 2 or 3.
Claim 4
Dependent Claim
65 words
An aqueous ink composition as in claim 1, wherein R 1 is a phenyl group, a substituted phenyl group, a (C 1 -C 4 )alkyl group or a sulfo-(C 1 -C 4 )alkyl group; R 2 is a phenyl group or a (C 1 -C 3 )alkyl group; X is a chlorine atom; n is 2 or 3; and m is 1, 2 or 3.
Claim 5
Dependent Claim
45 words
An aqueous ink composition as in claim 1, wherein said water-soluble dye has the formula (II): ##STR12## wherein R is a (C 1 -C 3 )alkyl group; X is a chlorine atom; (k+m) is 3 or 4; and (n+l) is 3, 4, 5 or 6.
Claim 6
Dependent Claim
41 words
An aqueous ink composition as in claim 1, wherein said wetting agent has a surface tension of at least 30 dynes/cm and a viscosity of less than 50 cPs at room temperature in a 3 to 40 wt% aqueous solution thereof.
Claim 7
Dependent Claim
76 words
An aqueous ink composition as in claim 1, wherein said wetting agent is at least one selected from the group consisting of a 2-pyrrolidone, a carboxylic acid amide derivative, a dioxyethylene sulfur compound, an alcohol amine, an N-formyl-lactam derivative, a polyalkylene glycol or a monoester thereof, a monovalent alcohol, a cellulose derivative, a polyvinyl alcohol, a polyoxyethylene sorbitan aliphatic acid ester, a polyoxyethylene aliphatic acid ester, a polyoxyethylene alkylphenyl ether, a water-soluble alginate and a 1,3-dialkyl-2-imidazolidinone.
Claim 8
Dependent Claim
31 words
An aqueous ink composition as in claim 1, wherein said wetting agent is at least one selected from the group consisting of a 2-pyrrolidone, a 1,3-dialkyl-2-imidazolidinone and a dioxyethylene sulfur compound.
Claim 9
Dependent Claim
36 words
An aqueous ink composition as in claim 1, wherein said wetting agent is a combination of one selected from a 2-pyrrolidone, a 1,3-dialkyl-2-imidazolidinone and a dioxyethylene sulfur compound, with a polyalkylene glycol or a monoester thereof.
Claim 10
Dependent Claim
14 words
An aqueous ink composition as in claim 1, which is useful for ink-jet printing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |