 Thermal transfer printing |
| We claim: 1. A thermal transfer printing sheet comprising a substrate having a coating comprising a ... |
|
| Thermal transfer printing |
| We claim: 1. A thermal transfer printing sheet comprising a substrate having a coating comprising a ... |
|
| Thermal transfer sheet |
| What is claimed is: 1. A thermal transfer recording sheet comprising a substrate and an ink layer ... |
|
| Azo compounds having a 5-substituted-4-chlorothiazolyl-2-diazo component radical |
| What is claimed is: 1. A compound of the formula ##STR29## wherein K is the radical of a coupling ... |
|
| Dye transfer type thermal printing sheets and method for printing |
| This invention relates to a method for printing by thermal dye transfer, particularly a dye ... |
|
| Process for trichromatic dyeing or printing |
| What is claimed is: 1. A process for the trichromatic dyeing or printing of natural and synthetic ... |
|
| Pressure-sensitive copying paper |
| We claim: 1. Pressure-sensitive copying paper comprising base paper neutral- or alkaline-sized with ... |
|
| Heat transfer sheet |
| An object of the present invention is to provide a heat transfer sheet which can give high image ... |
|
| Tear webbing |
| What is claimed is: 1. In a tear webbing including two woven straps each having a first length ... |
|
|
Yellow dye mixture for thermal color proofing
| Details |
Inventors: Evans, Steven; Chapman, Derek D.;
Assignee: Eastman Kodak Company (Rochester, NY)
Primary Examiner: Hess; Bruce H.
Assistant Examiner:
Attorney, Agent or Firm: Cole; Harold E.
A yellow dye-donor element for thermal dye transfer comprises a support having thereon a dye layer comprising a mixture of yellow dyes dispersed in a polymeric binder, at least one of the yellow dyes having the formula: ##STR1## wherein: each R.sup.1 independently represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; an aryl group of from about 6 to about 10 carbon atoms; a hetaryl group of from 5 to 10 atoms; acyl; arylsulfonyl; aminocarbonyl; aminosulfonyl; fluorosulfonyl; halogen; nitro; alkylthio; or arylthio; or any two adjacent R.sup.1 's together represent the atoms necessary to form a 5- or 6-membered fused ring; n represents an integer from 0-4; R.sup.2 represents hydrogen; a substituted or unsubstituted alkyl, cycloalkyl, allyl, aryl or hetaryl group as described above for R.sup.1 ; cyano; acyl; alkylsulfonyl; arylsulfonyl; or alkoxycarbonyl; Z represents cyano; alkoxycarbonyl; acyl; nitro; arylsulfonyl or alkylsulfonyl; Y represents hydrogen; a substituted or unsubstituted alkyl, cycloalkyl, allyl, aryl or hetaryl group as described above for R.sup.1 ; amino; alkylamino; arylamino; acylamino; or sulfonylamino; and at least one of the other of the dyes having the formula: ##STR2## wherein R.sup.3 represents the same groups as R.sup.1 above; R.sup.4 and R.sup.5 each independently represents hydrogen, R.sup.3 ; cyano; acyloxy; alkoxy of 1 to about 6 carbon atoms; halogen; or alkoxycarbonyl; or any two of R.sup.3, R.sup.4 and R.sup.5 together represent the atoms necessary to complete a 5- to 7-membered ring; R.sup.6 represents the same groups as R.sup.3 ; G represents a substituted or unsubstituted alkyl, cycloalkyl or allyl group as described above for R.sup.3, NR.sup.7 R.sup.8 or OR.sup.9 ; R.sup.7 and R.sup.8 each independently represents hydrogen, acyl or R.sup.3, with the proviso that R.sup.7 and R.sup.8 cannot both be hydrogen at the same time; or R.sup.7 and R.sup.8 together represent the atoms necessary to complete a 5- to 7-membered ring; R.sup.9 represents the same groups as R.sup.3 ; X represents C(R.sup.10)(R.sup.11), S, O or NR.sup.10 ; R.sup.10 and R.sup.11 each independently represents the same groups as R.sup.3 ; or R.sup.10 and R.sup.11 together represent the atoms necessary to complete a 5- to 7-membered ring; and J represents the atoms necessary to complete a 5- or 6-membered ring which may be fused to another ring system. |
|
DETAILED DESCRIPTION What is claimed is: 1.
A yellow dye-donor element for thermal dye transfer comprising a support having thereon a dye layer comprising a mixture of yellow dyes dispersed in a polymeric binder, at least one of said yellow dyes having the formula: ##STR8## wherein: each R.
sup.
1 independently represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; an aryl group of from about 6 to about 10 carbon atoms; a hetaryl group of from 5 to 10 atoms; acyl; arylsulfonyl; aminocarbonyl; aminosulfonyl; fluorosulfonyl; halogen; nitro; alkylthio; or arylthio; or any two adjacent R.
sup.
1 's together represent the atoms necessary to form a 5- or 6-membered fused ring; n represents an integer from 0-4; R.
sup.
2 represents hydrogen; a substituted or unsubstituted alkyl, cycloalkyl, allyl, aryl or hetaryl group as described above for R.
sup.
1 ; cyano; acyl; alkylsulfonyl; arylsulfonyl; or alkoxycarbonyl; Z represents cyano; alkoxycarbonyl; acyl; nitro; arylsulfonyl or alkylsulfonyl; Y represents hydrogen; a substituted or unsubstituted alkyl, cycloalkyl, allyl, aryl or hetaryl group as described above for R.
sup.
1 ; amino; alkylamino; arylamino; acylamino; or sulfonylamino; and at least one of the other of the dyes having the formula: ##STR9## wherein: R.
sup.
3 represents the same groups as R.
sup.
1 above; R.
sup.
4 and R.
sup.
5 each independently represents hydrogen, R.
sup.
3 ; cyano; acyloxy; alkoxy of 1 to about 6 carbon atoms; halogen; or alkoxycarbonyl; or any two of R.
sup.
3, R.
sup.
4 and R.
sup.
5 together represent the atoms necessary to complete a 5- to 7-membered ring; R.
sup.
6 represents the same groups as R.
sup.
3 ; G represents a substituted or unsubstituted alkyl, cycloalkyl or allyl group as described above for R.
sup.
3, NR.
sup.
7 R.
sup.
8 or OR.
sup.
9 ; R.
sup.
7 and R.
sup.
8 each independently represents hydrogen, acyl or R.
sup.
3, with the proviso that R.
sup.
7 and R
|
| Related patents |
|
|
Optical card having optical grooves for access and wobbled marks for tracking and a recording-reproducing apparatus therefor
In order to enable recording in an optical card apparatus, a laser beam flux needs to be focused as a minute spot on an information recording surface. For this purpose, ...
|
|
|
Packet switching testing method and apparatus
It is a primary object of the present invention to provide a packet switching testing method and a packet switching testing apparatus that are capable of attaining down-...
|
|
|
Process for producing an organic photosensitive material preventing blushing
The assignment of the present invention therefore is to provide a process for producing an organic photosensitive material which effectively prevents blushing. According ...
|
|
|
Phenothiazine leucodyes for electrochromic recording
We claim: 1. A substrate for electrochromic recording comprising bromide ions and characterized by also comprising a leucodye having the structure ##STR3## wherein R is ...
|
|
|
Electrochromic marking systems
INCLUSIVE OF THE PREFERRED EMBODIMENTS More specifically, this invention in its composition of matter aspect resides in the novel 5-Q-9-(N-R.sup.2 -N-R.sup.3 -amino)-12-...
|
|
|
Color thermal diffusion-transfer with leuco dye reducing agent
The present invention provides a photothermographic composite structure comprising (1) a dyeable image-receiving element comprising a polymeric image-receiving layer ...
|
|
|
Stabilized leuco phenazine dyes and their use in an imaging system
The thermographic systems of this invention comprise a leuco dye which is capable of being oxidized to give a change in color, a nitrate salt, wherein the cation of the ...
|
|
|
Photothermographic element comprising particles each containing silver halide, a silver compound and reducing agent
OF THE INVENTION A dispersion of particles containing color photothermographic chemistry therein is formed within a polymeric binder. The dispersion is not what is ...
|
|
|
Oxazine laser dyes
Oxazine salts, particularly, but not exclusively, the fluoborate, are provided as laser dyes and are advantageous in such application because the dyes are stable under ...
|
|
|
Method for obtaining a printing plate according to the silver salt diffusion transfer process
According to the present invention it has been found that the problems of printing quality of a printing plate obtained according to the DTR-process using short dipping ...
|
|
|
TV Signal 
