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US 4,022,617 AGranted
Photothermographic element, composition and process for producing a color image from leuco dye
AssigneeEastman Kodak Company
InventorHugh G. McGuckin
Life of this patent
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Abstract
A photothermographic element and composition for providing a dye image comprises (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) a silver salt oxidizing agent, with (ii) an organic reducing agent, (c) a polymeric binder for the element or composition and (d) a leuco-base dye which is oxidizable to form a dye image. After imagewise exposure of a photothermographic element or composition containing the described combination, a color image can be developed by overall heating the photothermographic element. Negative or positive dye images can be provided. The dye image can be transferred to an image receiver.
Claims36
A photothermographic element for producing a dye image comprising a support having coated thereon
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. a non-light sensitive, organic, silver salt oxidizing agent, with
- ii. an organic reducing agnet,
- c. a polymeric binder, and
- d. a leuco base dye represented by the formula:
- ##STR5## wherein R.sub.1 and R.sub.2 are each ##STR6## R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms, or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image.
6 more elements
A photothermographic element for producing a dye image comprising a support having coated thereon
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. silver behenate, with
- ii. a sulfonamidophenol reducing agent,
- c. a poly(vinyl butyral) binder, and
- d. about 0.002 mole to about 0.010 mole of a leuco base dye represented by the formula:
- ##STR7## wherein R.sup.1 and R.sup.2 are each ##STR8## R.sup.3 ;
- R.sub.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- per mole of total silver in said layer, said leuco base dye being oxidizable to form a dye image.
7 more elements
A photothermographic element for producing a dye image comprising a support having coated thereon
- a. photographic silver halide in association with
- b. an organic reducing agent,
- c. a silver salt oxidizing agent comprising a silver salt of a compound represented by the formula;
- ##STR9## wherein R.sup.8 represents a group containing the atoms which complete a 5-member heterocyclic nucleus with the atoms modified in said formula, and Z is alkylene containing 1 to 14 carbon atoms,
- d. a polymeric binder,
- e. a development modifier, and
- f. a leuco base dye represented by the formula:
- ##STR10## wherein R.sup.1 and R.sup.2 are each ##STR11## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image.
7 more elements
A photothermographic element for producing a dye image comprising a support having coated thereon
- a. photographic silver halide in association with
- b. an organic reducing agent which is a hydroquinone silver halide developing agent,
- c. a silver salt of 3-carboxymethyl-4-methyl-4-thiazoline-2-thione,
- d. a polymeric binder,
- e. a development modifier which is a compound selected from the group consisting of succinimide, N-hydroxy-1,8-naphthalimide and 1-(2H)-phthalazinone and
- f. a leuco base dye represented by the formula:
- ##STR12## wherein R.sup.1 and R.sup.2 are each ##STR13## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image.
6 more elements
A diffusion transfer, photothermographic element for producing a dye image comprising a support having thereon, in sequence,
- I.. a layer comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. a non-light sensitive, organic, silver salt oxidizing agent, with
- ii. an organic reducing agent,
- c. a development modifier,
- d. a polymeric binder for said layer (I), and
- e. a leuco base dye represented by the formula:
- ##STR14## wherein R.sup.1 and R.sup.2 are each ##STR15## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image and
- Ii. an image receiving layer.
9 more elements
A diffusion transfer, photothermographic element for producing a dye image comprising a support having thereon, in sequence,
- I. a layer comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. a non-light sensitive, organic, silver salt oxidizing agent, with
- ii. an organic reducing agent,
- c. a development modifier,
- d. a polymeric binder for said layer (I),
- e. a leuco base dye represented by the formula:
- ##STR16## wherein R.sup.1 and R.sup.2 are each ##STR17## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image,
- Ii. an opacifying layer, and
- Iii. an image receiving layer.
10 more elements
An integral diffusion transfer, photothermographic element for producing a dye image comprising respectively a transparent support having thereon, in sequence,
- I. a layer comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. silver behenate, with
- ii. a sulfonamidophenol reducing agent,
- c. a poly(vinyl butyral) binder for said layer (I), and
- d. about 0.002 mole to about 0.010 mole of a leuco base dye per mole of total silver in said element, said leuco base dye being selected from the group consisting of Malachite Green, Crystal Violet and Pararosaniline, and
- Ii. an opacifying layer comprising titanium dioxide and III. an image receiving layer comprising a dye mordant for said dye image.
5 more elements
A photothermographic composition comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. a non-light sensitive, organic, silver salt oxidizing agent, with
- ii. an organic reducing agent,
- c. a polymeric binder for said composition, and
- d. a leuco base dye represented by the formula:
- ##STR18## wherein R.sup.1 and R.sup.2 are each ##STR19## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image.
6 more elements
A photothermographic composition comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. silver behenate, with
- ii. a sulfonamidophenol reducing agent,
- c. a poly(vinyl butyral) binder for said composition, and
- d. Leuco-base Malachite Green.
3 more elements
A photothermographic composition comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. silver behenate, with
- ii. a sulfonamidophenol reducing agent,
- c. a poly(vinyl butyral) binder for said composition, and
- d. Leuco-base Crystal Violet.
3 more elements
A photothermographic composition comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. silver behenate, with
- ii. a sulfonamidophenol reducing agent,
- c. a poly(vinyl butyral) binder for said composition and
- d. Leuco-base Pararosaniline.
3 more elements
A photothermographic composition comprising
- a. photographic silver halide in association with
- b. an organic reducing agent,
- c. a silver salt oxidizing agent comprising a silver salt of a compound represented by the formula:
- ##STR20## wherein R.sup.8 represents atoms necessary to complete a 5-member heterocyclic nucleus, and Z is alkylene containing 1 to 14 carbon atoms,
- d. a polymeric binder for said composition,
- e. a development modifier, and
- f. a leuco base dye represented by the formula:
- ##STR21##
- wherein R.sup.1 and R.sup.2 are each ##STR22## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image.
8 more elements
A photothermographic composition comprising
- a. photographic silver halide in association with
- b. a hydroquinone silver halide developing agent,
- c. a silver salt of 3-carboxymethyl-4-methyl-4-thiazoline-2-thione,
- d. a polymeric binder for said composition,
- e. a development modifier which is a compound selected from the group consisting of succinimide, N-hydroxy-1,8-naphthalimide and 1-(2H)-phthalazinone, and
- f. a leuco base dye selected from the group consisting of Malachite Green, Crystal Violet and Pararosaniline.
3 more elements
A process of developing an image in an exposed, photothermographic element comprising a support having coated thereon
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. a non-light sensitive, organic, silver salt oxidizing agent, with
- ii. an organic reducing agent,
- c. a polymeric binder, and
- d. a leuco base dye represented by the formula:
- ##STR23##
- wherein R.sup.1 and R.sup.2 are each ##STR24## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms,
- which is oxidizable to form a dye image, comprising heating said element to a temperature within the range of about 80.degree. to about 250.degree. C.
7 more elements
A process of developing an image in an exposed photothermographic element comprising a support having coated thereon
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. silver behenate, with
- ii. a sulfonamidophenol reducing agent,
- c. a poly(vinyl butyral) binder,
- d. about 0.002 mole to about 0.010 mole of a leuco base dye per mole of total silver in said element, said leuco base dye being selected from the group consisting of Malachite Green, Crystal Violet and Pararosaniline,
- comprising heating said element to a temperature within the range of about 100.degree. C. to about 175.degree. C. for about 0.5 to about 60 seconds.
4 more elements
A process of developing an image in an exposed, diffusion transfer, photothermographic element comprising a support having thereon, in sequence,
- I. a layer comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. a non-light sensitive, organic, silver salt oxidizing agent, with
- ii. an organic reducing agent,
- c. a development modifier,
- d. a polymeric binder for said layer (I), and
- e. a leuco base dye represented by the formula:
- ##STR25## wherein R.sup.1 and R.sup.2 are each ##STR26## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image and
- Ii. an image receiving layer, comprising heating said layers to a temperature within the range of about 80.degree. C to about 250.degree. C.
9 more elements
A process of developing an image in an exposed, diffusion transfer photothermographic element comprising a support having thereon, is sequence, (I) a layer comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. silver behenate, with
- ii. a sulfonamidophenol reducing agent,
- c. a poly(vinyl butyral) binder for said layer (I),
- d. about 0.002 mole to about 0.010 mole of a leuco base dye per mole of total silver in said element, said leuco base dye being selected from the group consisting of Malachite Green, Crystal Violet and Pararosaniline, and
- (II) an image receiving layer comprising a mordant for a dye image from said layer (I), comprising heating said layers to a temperature within the range of about 80.degree. to about 250.degree. C.
4 more elements
A process of developing an image in an exposed, photothermographic element comprising a support having coated thereon
- a. photographic silver halide in association with
- b. an organic reducing agent,
- c. a silver salt of the compound represented by the formula:
- ##STR27## wherein R.sup.8 represents atoms necessary to complete a 5-member heterocyclic nucleus, and Z is alkylene containing 1 to 14 carbon atoms,
- d. a polymeric binder,
- e. a development modifier, and
- f. a leuco base dye represented by the formula:
- ##STR28## wherein R.sup.1 and R.sup.2 are each ##STR29## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image, comprising heating said element to a temperature within the range of about 100.degree. to about 180.degree. C.
7 more elements
A process of providing a direct positive, dye image in a photothermographic unit comprising, in sequence, a support having coated thereon
- A. a dye-image receiver layer,
- B. a layer comprising a leuco base dye represented by the formula:
- ##STR30## wherein R.sup.1 and R.sup.2 are each ##STR31## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image, and
- C. a photothermographic layer containing a latent image and comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. a non-light sensitive, organic, siler salt oxidizing agent, with
- ii. an organic reducing agent,
- c. a development modifier, and
- d. a polymeric binder for said layer (C), comprising exposing to light and heating said photothermographic unit to provide a positive dye image in said image receiver layer, and thereafter separating said layers (B) and (C) from said layer (A).
9 more elements
A process of providing a direct positive, dye image in a photothermographic unit comprising, in sequence, a support having coated thereon
- A. an image receiver layer,
- B. a photothermographic layer containing a latent image and comprising
- a. photographic silver halide in association with
- b. an oxidation-reduction image-forming combination comprising
- i. a non-light sensitive, organic, silver salt oxidizing agent, with
- ii. an organic reducing agent,
- c. a development modifier, and
- d. a polymeric binder for said layer (B), and
- C. a layer comprising a leuco base dye represented by the formula:
- ##STR32## wherein R.sup.1 and R.sup.2 are each ##STR33## R.sup.3, R.sup.4 and R.sup.5 are each amino, hydrogen, alkyl containing 1 to 6 carbon atoms or alkoxy containing 1 to 3 carbon atoms;
- and R.sup.6 and R.sup.7 are each alkyl containing 1 to 5 carbon atoms or aryl containing 6 to 12 carbon atoms;
- which is oxidizable to form a dye image, comprising
- 1. heating said photothermographic unit to provide a dye image in said layer (B);
- thereafter
- 2. exposing to light and heating said photothermographic unit to provide a positive dye image in said layer (A).
12 more elements
Dependencies are inferred from the claim text.