Abstract A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye dispersed in a polymeric binder, characterized in that the polymeric binder comprises a mixed cellulose ester and the dye-donor element contains a colorless, nonpolymeric material for increasing dye transfer efficiency having the following formula: wherein both R groups represent -CO₂J or -O₂CJ and are located either ortho or meta to each other; and each J independently represents a substituted or unsubstituted phenyl group, or a substituted or unsubstituted carbomonocyclic or carbobicyclic ring having from about 5 to about 12 carbon atoms, with the proviso that when either or both of J is substituted, then the total number of substituent carbon atoms in each J group is about 8 or less.
A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye dispersed in a polymeric binder, characterized in that said polymeric binder comprises a mixed cellulose ester and said dye-donor element contains a colorless, non polymeric material for increasing dye transfer efficiency having the following formula: wherein both R groups represent -CO₂J or -O₂CJ and are located either ortho or meta to each other; and each J independently represents a substituted or unsubstituted phenyl group, or a substituted or unsubstituted carbomonocyclic or carbobicyclic ring having from 5 to 12 carbon atoms, with the proviso that when either or both of J is substituted, then the total number of substituent carbon atoms in each J group is 8 or less.
Claim 2
Dependent Claim
125 words
A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye dispersed in a polymeric binder, characterized in that said polymeric binder comprises a mixed cellulose ester and said dye-donor element contains a colorless, non polymeric material for increasing dye transfer efficiency having the following formula: wherein both R groups represent -CO₂J or -O₂CJ and are located either ortho or meta to each other; and each J independently represents a substituted or unsubstituted phenyl group, or a substituted or unsubstituted carbomonocyclic or carbobicyclic ring having from 5 to 12 carbon atoms, with the proviso that when either or both of J is substituted, then the total number of substituent carbon atoms in each J group is 8 or less.
Claim 3
Dependent Claim
17 words
The element of Claim 1 characterized in that both R groups represent -O₂CJ and J is phenyl.
Claim 4
Dependent Claim
19 words
The element of Claim 1 characterized in that said polymeric binder comprises cellulose acetate propionate or cellulose acetate butyrate.
Claim 5
Dependent Claim
13 words
The element of Claim 1 characterized in that both R groups represent -CO₂J.
Claim 6
Dependent Claim
20 words
The element of Claim 4 characterized in that said J represents -C₆H₅, cyclo-C₆H₁₁, -C₆H₄(4-OCCH₃), -C₆H₄(3-OCH₃), -C₆H₄(3-CH₃), -C₆H₄(2,6-t-C₄H₉), -C₆H₄(2,6-i-C₃H₇), or fenchyl.
Claim 7
Dependent Claim
13 words
The element of Claim 1 characterized in that said material has the formula:
Claim 8
Dependent Claim
27 words
The element of Claim 1 characterized in that said support comprises poly(ethylene terephthalate) and the dye layer comprises sequential repeating areas of cyan, magenta and yellow dye.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.