Image forming method by using thermal dye transfer system
AssigneeKonica Minolta Photo Imaging, Inc.
InventorSatoshi Okano
Life of this patent
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Abstract
An image forming method using thermal transfer ink sheet containing a thermally diffusible dye and an image receiving sheet containing a metal ion containing compound capable of forming a metal chelate compound with the dye, comprising superimposing the ink sheet and the image receiving sheet and imagewise heating the ink sheet to transfer the dye to the image receiving sheet, wherein the imagewise heating is performed at a print rate of not more than 1.5 msec/line, and the image receiving layer further contains a metal ion species or at least one of a sorbitan fatty acid ester, a sorbitan fatty acid ester having a polyoxyethylene group, a phosphoric acid ester and compounds of the following formulas. HO—[CH2CH2O]n—[CH2CH(CH3)O]m—H HO—(W—O)p—H
Claims14
An image forming method of a thermal transfer recording material comprising an ink sheet comprising on a substrate sheet an ink layer containing a thermally diffusible dye capable of forming a chelate with a metal and an image receiving sheet comprising on a substrate a dye receiving layer containing a metal ion containing compound capable of forming a metal chelate compound upon reaction with the thermally diffusible dye, the method comprising the steps of:
- (a) superimposing the ink layer onto the dye receiving layer, and
- (b) imagewise heating the ink sheet based on a recording signal to transfer the thermally diffusible dye from the ink sheet to the image receiving sheet,
- wherein the imagewise heating is performed at a print rate of not more than 1.5 msec/line, and the dye receiving layer further contains a metal ion species or at least one selected from the group of a sorbitan fatty acid ester, a sorbitan fatty acid ester having a polyoxyethylene group, a phosphoric acid ester, a compound represented by the following formula (1) and a compound represented by the following formula (2):
- HO—[CH2CH2O]n—[CH2CH(CH3)O]m—H formula (1)
- wherein n is an integer of 100 to 200;
- m is an integer of 10 to 50;
- HO—(W—O)p—H formula (2)
- wherein W is —CH2CH2—, —CH2CH2CH2—, —CH2CH(CH3)— or —CH2CH2CH2CH2—;
- and p is an integer of 5 to 50.
An image forming method of a thermal transfer recording material comprising an ink sheet comprising on a substrate sheet an ink layer containing a thermally diffusible dye capable of forming a chelate with a metal and an image receiving sheet comprising on a substrate a dye receiving layer containing a metal ion containing compound capable of forming a metal chelate compound upon reaction with the thermally diffusible dye, the method comprising the steps of:
- (a) superimposing the ink layer onto the dye receiving layer, and
- (b) imagewise heating the ink sheet based on a recording signal to transfer the thermally diffusible dye from the ink sheet to the image receiving sheet,
- wherein the imagewise heating is performed at a print rate of not more than 1.5 msec/line, and the image receiving sheet further contains a metal ion species.
An image forming method of a thermal transfer recording material comprising an ink sheet comprising on a substrate sheet an ink layer containing a thermally diffusible dye capable of forming a chelate with a metal and an image receiving sheet comprising on a substrate a dye receiving layer containing a metal ion containing compound capable of forming a metal chelate compound upon reaction with the thermally diffusible dye, the method comprising the steps of:
- (a) superimposing the ink layer onto the dye receiving layer, and
- (b) imagewise heating the ink sheet based on a recording signal to transfer the thermally diffusible dye from the ink sheet to the image receiving sheet,
- wherein the imagewise heating is performed at a print rate of not more than 1.5 msec/line, and the dye receiving layer further contains at least one selected from the group of a sorbitan fatty acid ester, a sorbitan fatty acid ester having a polyoxyethylene group, a phosphoric acid ester, a compound represented by the following formula (1) and a compound represented by the following formula (2):
- HO—[CH2CH2O]n—[CH2CH(CH3)O]m—H formula (1)
- wherein n is an integer of 100 to 200;
- m is an integer of 10 to 50;
- HO—(W—O)p—H formula (2)
- wherein W is —CH2CH2—, —CH2CH2CH2—, —CH2CH(CH3)— or —CH2CH2CH2CH2—;
- and p is an integer of 5 to 50.
Dependencies are inferred from the claim text.