US4021059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of images
Assignee: Novartis Corp
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Filing: 1975-04-23
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Granted: 1977-05-03
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Expires: 1995-04-23
Abstract
Abstract An image producing system is provided which comprises a carrier material of fabric, paper, a felt or fabric pad impregnated with a color former solution, comprising a weakly volatile high boiling organic solvent having dissolved therein a color former and a color former deactivating substance, wherein the color former is an azo compound and a substrate which has incorporated therein or possesses at least one surface which is at least partially coated with a color former activating substance or system and a re-activating substance which counteracts the de-activating substance.
Inventors
- 👤 James Kenneth Skelly
- 👤 Michael Farrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:07
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/136; B41M1/00; B41M1/26; B41M1/28; Y; Y10; Y10S; Y10S428/00; Y10S428/914
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
292 words
An image producing system which comprises a carrier material of fabric, paper, a felt or fabric pad impregnated with a colour former solution, comprising a weakly volatile high boiling organic solvent having a boiling point of at least 150° C. and having dissolved therein a colour former and as a colour former de-activating substance a non-volatile liquid alkanol amine, wherein the color former is an azo compound having the general formula I: ##STR77## in which R 1 , R 2 and R 3 each represents hydrogen, halogen, alkyl, alkoxy, aryloxy, alkoxycarbonyl, dialkylaminocarbonyl, acylamino, acyl(alkyl)amino, ##STR78## in which Y 1 and Y 2 each represents alkyl or aryl, or in which Y 1 and Y 2 together represent an alkylene group; X 1 is hydrogen or an alkyl group, X 2 is an alkyl, cyanoalkyl or arylmethylene group or X 1 and X 2 together represent an alkylene group, X 3 is an alkyl or aryl group and n is 1 or 2, preferably 1, or of the general formula II: ##STR79## in which Z 1 , Z 2 and Z 3 each represents hydrogen, alkyl, substituted alkyl, alkoxy, halogen, nitro, acylamino, aminoacyl or alkoxycarbonyl, A 1 and A 2 each represents alkyl or phenyl or A 1 and A 2 together with the nitrogen atom to which they are bound form a heterocyclic ring system and n is 1 or 2; and a substrate which has incorporated therein or possesses at least one surface which is at least partially coated with a colour former activating substance or system and a re-activating organic acid which counteracts the de-activating substance and in which, when the colour former corresponds to formula II, the color activating substance is present in admixture with an azo coupling component.
Claim 2
Dependent Claim
292 words
An image producing system which comprises a carrier material of fabric, paper, a felt or fabric pad impregnated with a colour former solution, comprising a weakly volatile high boiling organic solvent having a boiling point of at least 150° C. and having dissolved therein a colour former and as a colour former de-activating substance a non-volatile liquid alkanol amine, wherein the color former is an azo compound having the general formula I: ##STR77## in which R 1 , R 2 and R 3 each represents hydrogen, halogen, alkyl, alkoxy, aryloxy, alkoxycarbonyl, dialkylaminocarbonyl, acylamino, acyl(alkyl)amino, ##STR78## in which Y 1 and Y 2 each represents alkyl or aryl, or in which Y 1 and Y 2 together represent an alkylene group; X 1 is hydrogen or an alkyl group, X 2 is an alkyl, cyanoalkyl or arylmethylene group or X 1 and X 2 together represent an alkylene group, X 3 is an alkyl or aryl group and n is 1 or 2, preferably 1, or of the general formula II: ##STR79## in which Z 1 , Z 2 and Z 3 each represents hydrogen, alkyl, substituted alkyl, alkoxy, halogen, nitro, acylamino, aminoacyl or alkoxycarbonyl, A 1 and A 2 each represents alkyl or phenyl or A 1 and A 2 together with the nitrogen atom to which they are bound form a heterocyclic ring system and n is 1 or 2; and a substrate which has incorporated therein or possesses at least one surface which is at least partially coated with a colour former activating substance or system and a re-activating organic acid which counteracts the de-activating substance and in which, when the colour former corresponds to formula II, the color activating substance is present in admixture with an azo coupling component.
Claim 3
Dependent Claim
22 words
A system as claimed in claim 1, in which the colour former solutions contains up to 10% by weight of colour former.
Claim 4
Dependent Claim
15 words
A system as claimed in claim 1, in which the alkanolamine is triethanolamine or diethanolamine.
Claim 5
Dependent Claim
20 words
A system as claimed in claim 1, in which the solvent contains up to 40% by weight of de-activating substance.
Claim 6
Dependent Claim
21 words
A system as claimed in claim 4, in which the solvent contains from 0.4 to 6% by weight of de-activating substance.
Claim 7
Dependent Claim
140 words
A system as claimed in claim 1, in which the colour former has the general formula (III): ##STR80## in which R 4 , R 5 and R 6 each represent lower alkyl, lower alkoxy, halogenphenoxy, phenoxy, lower alkoxycarbonyl, lower dialkylaminocarbonyl, acetylamino, halogen, acetyl(lower alkyl)amino, ##STR81## in which Y 3 and Y 4 each represents lower alkyl or phenyl, or in which Y 3 and Y 4 together represent an alkylene group with 4 or 5 carbon atoms and, at most two of the radicals R 4 , R 5 and R 6 being hydrogen, X 4 is hydrogen or lower alkyl, X 5 is lower alkyl, lower cyanoalkyl or benzyl, or X 4 and X 5 together represent an alkylene group with 4 or 5 carbon atoms, X 6 is lower alkyl or phenyl and n is 1 or 2.
Claim 8
Dependent Claim
107 words
A system as claimed in claim 6, in which the colour former has the general formula IV: ##STR82## in which R 7 , R 8 and R 9 each represents methyl, methoxy, phenoxy, dichlorophenoxy, methoxycarbonyl, dimethylaminocarbonyl, acetylamino, chlorine, acetyl(methyl)amino, ##STR83## in which Y 5 and Y 6 each represent methyl, ethyl or phenyl or in which Y 5 and Y 6 together represent a pentylene group, at most two of the radicals, R 7 , R 8 and R 9 being hydrogen, X 7 is methyl or ethyl, X 8 is methyl, 2-cyanoethyl or benzyl, X 9 is methyl or ethyl and n is 1 or 2.
Claim 9
Dependent Claim
41 words
A system as claimed in claim 7, in which the colour former has the general formula (V) ##STR84## in which R 7 , R 8 , R 9 , X 7 and X 8 have the meanings given in claim 7.
Claim 10
Dependent Claim
65 words
A system as claimed in claim 8, in which the colour former has the general formula VI: ##STR85## in which R 10 , R 11 and R 12 each represents methoxy, methoxycarbonyl, chlorine, diethylaminosulfonyl or acetylamino, at most two of the radicals R 10 , R 11 and R 12 being hydrogen and X 7 and X 8 have the meanings given in claim 8.
Claim 11
Dependent Claim
165 words
A system as claimed in claim 1, in which the colour former has the general formula VII: ##STR86## in which Z 4 , Z 5 and Z 6 each represents hydrogen, alkyl with 1 to 4 carbon atoms, alkoxy with 1 to 4 carbon atoms, halogen, nitro, --N(--X 1 )--CO--X 2 or ##STR87## or COOX 3 , X 1 and X 2 each representing hydrogen, alkyl with 1 to 4 carbon atoms or phenyl, X 3 represents alkyl with 1 to 4 carbon atoms, G is --CO-- or --SO 2 --, A 3 , A 4 , A 3 ' and A 4 ' each represent alkyl with 1 to 4 carbon atoms or phenyl or A 3 and A 4 , and A 3 ' and A 4 ' respectively together with the nitrogen atom to which they are bound form a heterocyclic ring system with one or two rings, each ring containing 5 to 7 ring members and n is 1 or 2.
Claim 12
Dependent Claim
62 words
A system as claimed in claim 10, in which the colour former has the general formula VIII: ##STR88## in which Z 7 and Z 8 each represent hydrogen, alkyl with 1 to 4 carbon atoms, alkoxy with 1 to 4 carbon atoms or halogen and Z 6 , A 3 , A 4 and n have the meanings given in claim 10.
Claim 13
Dependent Claim
205 words
A system as claimed in claim 11, in which the colour former has the general formula IX: ##STR89## in which Z 9 represents hydrogen, alkyl with 1 to 2 carbon atoms, alkoxy with 1 or 2 carbon atoms, halogen, nitro, --N(--X 4 )--CO--X 5 , ##STR90## or --COOX 6 , X 4 represents hydrogen, alkyl with 1 or 2 carbon atoms or phenyl, X 5 represents alkyl with 1 or 2 carbon atoms, X 6 represents alkyl with 1 or 2 carbon atoms or phenyl, Z 10 and Z 11 each represent hydrogen, alkyl with 1 or 2 carbon atoms, alkoxy with 1 or 2 carbon atoms or halogen, G represents --CO-- or --SO 2 --; A 5 , A 6 , A 5 ' and A 6 ' each represents alkyl with 1 or 2 carbon atoms or phenyl or A 5 and A 6 and A 5 ' and A 6 ' respectively together with the nitrogen atoms to which they are bound form a heterocyclic ring system with one or two rings consisting of carbon, nitrogen and at most one oxygen as ring members, each ring containing 5 to 7 ring members and the ring system containing at most 10 ring members.
Claim 14
Dependent Claim
90 words
A system as claimed in claim 11, in which the colour former has the general formula X: ##STR91## in which Z 12 represents hydrogen, methyl, methoxy, chlorine, nitro, ##STR92## Z 13 is hydrogen, methyl, methoxy or chlorine Z 14 is hydrogen or methoxy A 7 ' is methyl, ethyl or phenyl A 8 ' is methyl, ethyl or hydrogen A 7 is methyl, ethyl or phenyl A 8 is methyl or ethyl or A 7 and A 8 together with the nitrogen atom to which they are bound represent ##STR93##
Claim 15
Dependent Claim
28 words
A system as claimed in claim 1, in which the carrier material is impregnated with from 5 - 200% of its dry weight of the colour former solution.
Claim 16
Dependent Claim
57 words
A system as claimed in claim 1, in which the colour former activating substance is attapulgite, bentonite, silica, halloysite, kaolin or any acidic or acidified clay, or a phenolic polymer, a phenol acetylene polymer, a maleic acid-rosin resin or a partially or wholly hydrolysed polymer of maleic anhydride with styrene, ethylene, vinyl methyl ether or carboxy polymethylenes.
Claim 17
Dependent Claim
65 words
A system as claimed in claim 1, in which the organic acid is maleic acid, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, tricarballylic acid diclycollic acid, lactic acid, malic acid, tartaric acid, citric acid, pyrophosphoric acid, benzene sulphonic acid, naphthalene-2-sulphonic acid, 1-phenol-4-sulphonic acid, polymaleic acid, co- and ter-polymers of maleic acid with ethyl acrylate and vinyl acetate, hydroxyethane diphosphonic acid, methylamino-N-N-di-methylenephosphonic acid.
Claim 18
Dependent Claim
22 words
A system as claimed in claim 1, in which the azo coupling component is a naphthalene, benzene, pyrazolone or quinoline coupling component.
Claim 19
Dependent Claim
61 words
A system as claimed in claim 17, in which the azo coupling component is a naphthol of general formula XI: ##STR94## in which M is --NH--, --S-- or --O--, Q 1 and Q 2 each represent hydrogen, nitro, halogen, alkyl with 1 to 4 carbon atoms or alkoxy with 1 to 4 carbon atoms, m and r each 1 or 2.
Claim 20
Dependent Claim
108 words
A system as claimed in claim 17, in which the azo coupling component is a naphthylamine of general formula XII: ##STR95## in which Q 3 and Q 4 each represent hydrogen, alkyl with 1 to 4 carbon atoms, benzyl or phenyl or where Q 3 , Q 4 and the nitrogen atom to which they are bound together form a heterocyclic ring system with one or two rings consisting of carbon, nitrogen and at most one oxygen as ring members, each ring containing 5 to 7 ring members and the ring system containing at most 10 ring members and Q 5 is hydrogen or a sulphonic acid group.
Claim 21
Dependent Claim
18 words
A system as claimed in claim 1, in which the substrate is a neutral or alkaline sized paper.
Claim 22
Dependent Claim
79 words
A process for producing a coloured image on a substrate by means of a colour former which comprises impregnating a carrier material with a colour former solution as defined in claim 1, incorporating into the substrate or at least partially coating the surface of the substrate with a colour former activating substance or system and a re-activating substance which counteracts the de-activating substance and transferring the colour former on to selected areas of the substrate to produce an image.
Claim 23
Dependent Claim
44 words
A colour former solutions comprising a weakly volatile high boiling organic solvent having dissolved therein a colour former and a colour former de-activating substance, wherein the colour former is an azo compound having the general formula I or II as defined in claim 1.
Claim 24
Dependent Claim
22 words
A carrier material of fabric paper, a felt or fabric pad impregnated with a colour former solution as claimed in claim 22.
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) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |