US5229353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal transfer printing with ultra-violet absorbing compound
Assignee: Agfa Gevaert NV
•
Filing: 1991-06-12
•
Granted: 1993-07-20
•
Expires: 2011-06-12
Abstract
Abstract A thermal transfer printing process wherein a donor element for thermal transfer is heated imagewise in contact with a receptor element to transfer thereon a UV-absorbing compound, said donor element comprising a sheet, ribbon or web support having on one side thereof a layer incorporating in a wax or polymeric binder material an UV-absorbing benzthiazole compound corresponding to the following general formula (A): ##STR1## wherein: Z represents the atoms necessary to close an unsubstituted or substituted adjacent aromatic ring or ringsystem, R 2 represents hydrogen, an alkyl group of 1 to 4 carbon atoms, or a phenyl group, each of R 3 and R 4 (same or different) represents hydrogen, an amino group, a substituted amino group, an alkoxy group or a substituted alkoxy group.
Inventors
- 👤 Luc J. Vanmaele
- 👤 Wilhelmus Janssens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:31
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/46; B41M5/382; B41M5/385; B41M5/388; B41M5/34; B41M5/345; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10S430/00; Y10S430/146; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
102 words
A thermal transfer printing process wherein a donor element for thermal transfer is heated imagewise in contact with a receptor element, said donor element comprising a sheet support having on one side thereof a layer incorporating in a wax or polymeric binder material an UV-absorbing benzthiazole compound corresponding to the following general formula (A): ##STR8## wherein: Z represents the atoms necessary to close a benzene ring, R 2 represents hydrogen, an alkyl group of 1 to 4 carbon atoms, or an aryl group, each of R 3 and R 4 (same or different) represents hydrogen, an amino group or an alkoxy group.
Claim 2
Dependent Claim
102 words
A thermal transfer printing process wherein a donor element for thermal transfer is heated imagewise in contact with a receptor element, said donor element comprising a sheet support having on one side thereof a layer incorporating in a wax or polymeric binder material an UV-absorbing benzthiazole compound corresponding to the following general formula (A): ##STR8## wherein: Z represents the atoms necessary to close a benzene ring, R 2 represents hydrogen, an alkyl group of 1 to 4 carbon atoms, or an aryl group, each of R 3 and R 4 (same or different) represents hydrogen, an amino group or an alkoxy group.
Claim 3
Dependent Claim
105 words
A process according to claim 1, wherein Z represents the atoms necessary to close an adjacent benzene ring either or not substituted with one or more substituents R 1 of the following group: alkyl, alkoxy, halogen, cyano, --COR, --SO 2 R, --NHCOR, or --NHSO 2 R, wherein R is alkyl, alkaryl or aryl; --SO 2 --N(R 11 , R 12 ), wherein each of R 11 and R 12 (same or different) is hydrogen, alkyl, alkaryl or aryl, and --NHP(O)(R 13 ,R 14 ), wherein each of R 13 and R 14 (same or different) is hydrogen, alkyl, alkaryl, aryl, alkoxy or an amino group.
Claim 4
Dependent Claim
13 words
A process according to claim 2, wherein R 1 represents an ethoxy group.
Claim 5
Dependent Claim
13 words
A process according to claim 1, wherein R 2 represents a methyl group.
Claim 6
Dependent Claim
20 words
A process according to claim 1, wherein R 3 is hydrogen and R 4 is a dimethylamino or diethylamino group.
Claim 7
Dependent Claim
23 words
A process according to of claim 1, wherein together with the UV-absorbing compound a dye or dyes is transferred onto the receptor element.
Claim 8
Dependent Claim
21 words
A process according to claim 1, wherein together with the UV-absorbing compound a thermal solvent is transferred onto the receptor element.
Claim 9
Dependent Claim
21 words
A process according to claim 1, wherein the imagewise heating proceeds with a thermal head comprising pixelwise electrically heated resistor elements.
Claim 10
Dependent Claim
21 words
A process according to claim 1, wherein the imagewise heating proceeds with a resistive ribbon structure wherein current is injected pulsewise.
Claim 11
Dependent Claim
16 words
A process according to claim 1, wherein the imagewise heating proceeds by imagewise modulated laser beam.
Claim 12
Dependent Claim
102 words
A donor element suited for use in a thermal printing process, wherein said donor element comprises a support having on one side thereof a layer including in a binder medium an UV-absorbing compound, and on the other side a slipping layer comprising a lubricant, said UV-absorbing compound corresponding to the following general formula (A): ##STR9## wherein: Z represents the atoms necessary to close a benzene ring, R 2 represents hydrogen, an alkyl group of 1 to 4 carbon atoms, or an aryl group, each of R 3 and R 4 (same or different) represents hydrogen, an amino group, or an alkoxy group.
Claim 13
Dependent Claim
102 words
A donor element suited for use in a thermal printing process, wherein said donor element comprises a support having on one side thereof a layer including in a binder medium an UV-absorbing compound, and on the other side a slipping layer comprising a lubricant, said UV-absorbing compound corresponding to the following general formula (A): ##STR9## wherein: Z represents the atoms necessary to close a benzene ring, R 2 represents hydrogen, an alkyl group of 1 to 4 carbon atoms, or an aryl group, each of R 3 and R 4 (same or different) represents hydrogen, an amino group, or an alkoxy group.
Claim 14
Dependent Claim
106 words
A donor element according to claim 11, wherein Z represents the atoms necessary to close an adjacent benzene ring either or not substituted with one or more substituents R 1 of the following group: alkyl, alkoxy, halogen, cyano, --COR, --SO 2 R, --NHCOR, OR --NHSO 2 R, wherein R is alkyl, alkaryl or aryl; --SO 2 --N(R 11 , R 12 ), wherein each of R 11 and R 12 (same or different) is hydrogen, alkyl, alkaryl or aryl, and --NHP(O)(R 13 ,R 14 ), wherein each of R 13 and R 14 (same or different) is hydrogen, alkyl, alkaryl, aryl, alkoxy or an amino group.
Claim 15
Dependent Claim
14 words
A donor element according to claim 12, wherein R 1 represents an ethoxy group.
Claim 16
Dependent Claim
14 words
A donor element according to claim 11, wherein R 2 represents a methyl group.
Claim 17
Dependent Claim
21 words
A donor element according to claim 11, wherein R 3 is hydrogen and R 4 is a dimethylamino or diethylamino group.
Claim 18
Dependent Claim
41 words
A donor element according to claim 11, wherein said donor element comprises sequentially repeating areas containing respectively a magenta, yellow and cyan dye and said UV-absorbing compound in each said area or said UV-absorbing compound in an additional separate dye-free area.
References Cited (Backward Citations)
US4876237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-19 | 1997-01-18 | 1997-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-19 | 2001-01-18 | 2001-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-19 | 2005-01-18 | 2005-07-20 | $7700.00 | Window Closed / Lapsed |