EP0187520A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Water-soluble dye
Assignee: Syngenta Ltd
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Filing: 1985-12-23
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Granted: —
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Expires: 2005-12-23
Abstract
Abstract A water-soluble dye, free from cellulose reactive groups, of the formula: wherein R' is -(C a H 2a O) m (C b H 2b O) n H, R 2 is H or -(C a H 2a O) m (C b H 2b O) n H, or R 1 & R 2 together with the nitrogen atom form a morpholine ring a & b are different and from 1 to 8 m is from 1 to 10; n is from 0 to 9; X is the residue of a diazotisable amine Y is NR'R 2 or non-chromophoric groups OR 3 or NR 3 R 4 in which R 3 and R" are independently selected from H, alkyl and aryl. and Z is: wherein M is a monovalent cation, and an ink containing the dye suitable for use in an ink jet printing process.
Inventors
- 👤 David Greenwood
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 14:05
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; C09B; C09B43/00; C09B43/12; C09B43/136; C09B43/16
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
130 words
A water-soluble dye, free from cellulose reactive groups, of the formula: wherein R 1 is -(C a H 2a O) m (C b H 2b O) n H, R 2 is H or -(C a H 2a O) m (C b H 2b O) n H, or R & R 2 together with the nitrogen atom form a morpholine ring a & b are different and from 1 to 8 m is from 1 to 10; n is from 0 to 9; X is the residue of a diazotisable amine Y is NR 1 R 2 or non-chromophoric groups OR 3 or NR 3 R 4 in which R 3 and R 4 are independently selected from H, alkyl and aryl. and Z is: wherein M is a monovalent cation.
Claim 2
Dependent Claim
130 words
A water-soluble dye, free from cellulose reactive groups, of the formula: wherein R 1 is -(C a H 2a O) m (C b H 2b O) n H, R 2 is H or -(C a H 2a O) m (C b H 2b O) n H, or R & R 2 together with the nitrogen atom form a morpholine ring a & b are different and from 1 to 8 m is from 1 to 10; n is from 0 to 9; X is the residue of a diazotisable amine Y is NR 1 R 2 or non-chromophoric groups OR 3 or NR 3 R 4 in which R 3 and R 4 are independently selected from H, alkyl and aryl. and Z is: wherein M is a monovalent cation.
Claim 3
Dependent Claim
18 words
A dye according to Claim 1 wherein NR 1 R 2 is selected from hydroxyethylamino, di(hydroxyethyl)amino and morpholino.
Claim 4
Dependent Claim
15 words
A dye according to Claim 1 or Claim 2 wherein Y is NR R .
Claim 5
Dependent Claim
77 words
A dye according to Claim 1 or Claim 2 wherein Y is selected from O H, C 1-4 -alkoxy, NH 2 , C 1-4 -alkylamino, C 4-8 -cycloalkylamino, phenylamino, substituted phenylamino, naphthylamino, substituted naphthylamino, in which the substituents are selected from S0 3 M, COOM, OH, NH 2 , CF 3 , NH 2 CO, CN, NO 2 , C 1-4 -alkyl, C 1-4 -alkoxy, mono- & di-C 1-4 -alkyl- amino, C 1-4 -alkylcarbonylamino, aminocarbonyl, and halogen.
Claim 6
Dependent Claim
68 words
A dye according to any one of Claims 1 to 4 wherein X is the residue of a diazotisable amine selected from: wherein A is selected from SO 3 M, COOM, C 1-4 -alkyl, C 1-4 -alkoxy, C 1-4 alkylcarbonylamino, NO 2 , CN, OH and halogen; x is from 1 or 2; Z is H or alkyl; and T is COOC 1-4 -alkyl, CONH 2 or CN.
Claim 7
Dependent Claim
102 words
A dye according to any one of Claims 1 to 4 wherein X is selected from 3-nitroaniline, 4-nitroaniline, nitronaphthylamines, acylamino-aminonaphthalenes, nitroaminoquinolines, nitroaminobenzthiazoles, nitroaminothiazoles, nitroaminobenzthiadiazoles and nitroaminobenzimidazoles optionally substituted by one or two groups selected from S0 3 M, COOM, OH, NH 2 , NH 2 CO-, CF 3 , C 1-4 -alkyl, C 1-4 -alkoxy, mono- or di-C1-4-alkylamino, C 1-4 -alkylcarbonylamino, mono- & di-alkylamino-carbonyl & sulphonyl, ureido, phenylamino, nitro, cyano and halogen. 7. A dye according to any one of Claims 1 to 6 carrying at least three water-solubilising groups selected from NR 1 R 2 , SO 3 M and COOM.
Claim 8
Dependent Claim
23 words
A dye according to Claim 1 wherein NR 1 R 2 is hydroxyethylamino, X is 2-trifluoromethylphen-1,4-ylene, Y is 3-sulphophenylamino and M is potassium.
Claim 9
Dependent Claim
22 words
A dye according to Claim 1 wherein NR R , Y and M are as in Claim 8 and X is 2-methyl-5-methoxyphen-l,4-ylene.
Claim 10
Dependent Claim
22 words
A dye according to Claim 1 wherein NR R , Y and M are as in Claim 8 and X is 2-methoxyphen-l,4-ylene.
Claim 11
Dependent Claim
16 words
An ink comprising a water-soluble dye in accordance with any one of Claims 1 to 10.
Claim 12
Dependent Claim
50 words
An ink comprising a dye in accordance with any one of Claims 1 to 10 suitable for a recording system of the type in which an ink is ejected from a small orifice in the form of droplets directed towards a substrate on which an image is to be formed.
Claim 13
Dependent Claim
26 words
An ink according to Claim 11 or Claim 12 wherein the dye is dissolved in water of a mixture of water and a water-soluble organic solvent.
Claim 14
Dependent Claim
15 words
An ink according to Claim 13 wherein the water-soluble organic solvent is a polyhydric alcohol.
Claim 15
Dependent Claim
21 words
An ink according to any one of Claims 11 to 14 containing from 0.5% to 20% by weight of the dye.
Claim 16
Independent Claim
40 words
A method of printing which comprises ejecting an ink in accordance with any one of Claims 11 to 15 from a small orifice in the form of droplets directed towards a substrate on which an image is to be formed.
References Cited (Backward Citations)
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