US4753922A
Expired / Lapsed
US
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Neutral-black dye-donor element for thermal dye transfer
Assignee: Eastman Kodak Co
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Filing: 1987-11-20
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Granted: 1988-06-28
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Expires: 2007-11-20
Abstract
Abstract A neutral-black dye-donor element for thermal dye transfer comprises a support having thereon a dye dispersed in a polymeric binder, the dye comprising a 1-((4-phenylazo)phenylazo)-8-amino-2-naphthol, such as one having the formula: ##STR1## wherein: each R 1 is independently a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms, a substituted or unsubstituted aryl group of from about 5 to about 10 carbon atoms, or two R 1 groups may be joined together with the N atom to which they are attached to form a 5- or 6-membered heterocyclic ring; and R 2 is hydrogen or R 1 .
Inventors
- 👤 Gary W. Byers
- 👤 Derek D. Chapman
- 👤 Michael J. McManus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:12
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/385; B41M5/388; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
26 words
A neutral-black dye-doner element for thermal dye transfer comprising a support having thereon a dye layer dispersed in a polymeric binder, said dye comprising a 1-((4-phenylazo)phenylazo)-8-amino-2-naphthol.
Claim 2
Dependent Claim
26 words
A neutral-black dye-doner element for thermal dye transfer comprising a support having thereon a dye layer dispersed in a polymeric binder, said dye comprising a 1-((4-phenylazo)phenylazo)-8-amino-2-naphthol.
Claim 3
Dependent Claim
82 words
The element of claim 1 wherein said dye has the formula: ##STR6## wherein: each R 1 is independently a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms, a substituted or unsubstituted aryl group of from about 5 to about 10 carbon atoms, or two R 1 groups may be joined together with the N atom to which they are attached to form a 5- or 6-membered heterocyclic ring; and R 2 is hydrogen or R 1 .
Claim 4
Dependent Claim
10 words
The element of claim 2 wherein R 2 is hydrogen.
Claim 5
Dependent Claim
12 words
The element of claim 2 wherein R 1 is ethyl or n-butyl.
Claim 6
Dependent Claim
27 words
The element of claim 2 wherein each phenylazo group is independently substituted with a nitro, halogen or alkyl group having from 1 to about 6 carbon atoms.
Claim 7
Dependent Claim
18 words
The element of claim 1 wherein a dye-barrier layer is located between said dye layer and said support.
Claim 8
Dependent Claim
29 words
The element of claim 1 wherein the side of the support opposite the side having thereon said dye layer is coated with a slipping layer comprising a lubricating material.
Claim 9
Dependent Claim
26 words
The element of claim 1 wherein said support comprises poly(ethylene terephthalate) which is coated with sequential repeating areas of magenta, yellow, cyan and said neutral-black dye.
Claim 10
Dependent Claim
55 words
In a process of forming a neutral-black dye transfer image comprising imagewise-heating a dye-doner element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder and transferring a dye image to a dye-receiving element to form said neutral-black dye transfer image, the improvement wherein said dye comprises a 1-((4-phenylazo)phenylazo)-8-amino-2-naphthol.
Claim 11
Dependent Claim
55 words
In a process of forming a neutral-black dye transfer image comprising imagewise-heating a dye-doner element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder and transferring a dye image to a dye-receiving element to form said neutral-black dye transfer image, the improvement wherein said dye comprises a 1-((4-phenylazo)phenylazo)-8-amino-2-naphthol.
Claim 12
Dependent Claim
82 words
The process of claim 9 wherein said dye has the formula: ##STR7## wherein: each R 1 is independently a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms, a substituted or unsubstituted aryl group of from about 5 to about 10 carbon atoms, or two R 1 groups may be joined together with the N atom to which they are attached to form a 5- or 6-membered heterocyclic ring; and R 2 is hydrogen or R 1 .
Claim 13
Dependent Claim
10 words
The process of claim 10 wherein R 2 is hydrogen.
Claim 14
Dependent Claim
12 words
The process of claim 10 wherein R 1 is ethyl or n-butyl.
Claim 15
Dependent Claim
27 words
The process of claim 10 wherein each phenylazo group is independently substituted with a nitro, halogen or alkyl group having from 1 to about 6 carbon atoms.
Claim 16
Dependent Claim
11 words
The process of claim 10 wherein said support is poly(ethylene terephthalate).
Claim 17
Dependent Claim
74 words
In a thermal dye transfer assemblage comprising: (a) a dye-doner element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, and (b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said dye-doner element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein said dye comprises a 1-((4-phenylazo)phenylazo)-8-amino-2-naphthol.
Claim 18
Dependent Claim
74 words
In a thermal dye transfer assemblage comprising: (a) a dye-doner element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, and (b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said dye-doner element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein said dye comprises a 1-((4-phenylazo)phenylazo)-8-amino-2-naphthol.
Claim 19
Dependent Claim
82 words
The assemblage of claim 15 wherein said dye has the formula: ##STR8## wherein: each R 1 is independently a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms, a substituted or unsubstituted aryl group of from about 5 to about 10 carbon atoms, or two R 1 groups may be joined together wtih the N atom to which they are attached to form a 5- or 6-membered heterocyclic ring; and R 2 is hydrogen or R 1 .
Claim 20
Dependent Claim
10 words
The assemblage of claim 16 wherein R 2 is hydrogen.
Claim 21
Dependent Claim
12 words
The assemblage of claim 16 wherein R 1 is ethyl or n-butyl.
Claim 22
Dependent Claim
27 words
The assemblage of claim 16 wherein each phenylazo group is independently substituted with a nitro, halogen or alkyl group having from 1 to about 6 carbon atoms.
Claim 23
Dependent Claim
30 words
The assemblage of claim 15 wherein said support of the dye-doner element comprises poly(ethylene terephthalate) which is coated with sequential repeating areas of magenta, yellow, cyan and said neutral-black dye.
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) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |