JPS5960434A - Heat developable color photosensitive material - Google Patents

Abstract

PURPOSE:To obtain a color image by heat transferring a hydrophilic dye released by heat development to an image receiving material contg. a mordant. CONSTITUTION:A layer contg. photosensitive silver halide, an org. silver salt as an oxidizing agent, a hydrophilic binder and a reducible dye providing substance releasing a hydrophilic diffusible dye is formed on a support. The dye providing substance is represented by the general formula, wherein G is hydroxyl or a group giving hydroxyl by hydrolysis such as acetoxyl, propionyloxy or other acyloxy group, Col is a dye or a group giving a dye, and R is alkyl or an aromatic group.

Description

[Detailed Description of the Invention] The present invention provides color images by heat development? The present invention relates to a method for forming, in particular, thermal imaging, image vC,
In the field of color photosensitivity, which contains a dye-donating substance that releases a dye, the heat phenomenon that contains a dye-donating substance that releases a dye, and the horn that is released at 1ψ in the 8th generation, is compared to the f9X-receptive This paper describes a new method for obtaining color images by dispersing the image onto a support.

Halogen Sumibank? The photographic method used, compared to other Kadoma methods, is electronic force tactics and diazo photographic methods, such as kan/i and kana at!
4 Adjustable for photographic characteristics such as adjustment (because it is conventional η)
It has been most widely used7. In recent years, the image forming method using halogen (?silver?) material has been changed from the conventional method.
(8) Techniques have been developed that allow images to be obtained easily and quickly by changing from wet processing using liquid, etc. to dry processing using force [1, heat, etc.].

Thermal mass RT photosensitive materials are well known in the technical field and are heat-sensitive.
J, 11'i optical material and its process.
US special #T 3rd. isco, riqgu issue, 3rd, 30th/, 6th
7 and No. 3. Jri No. 2,020, gpJ,? 57
.

No. 07/, British Patent mt, i3i, ior No. 1, /
67.777 issue and the Research Disclosure magazine IY7 from June issue to is page (Ii, D-7yo F). Many methods have been proposed for obtaining this. A method of forming a color image and sound by combining an oxidized developer and a coupler is described in US Pat. No. 3. j3/, p in issue 216
- A phenylene diamine reducing agent and a phenolic or active methylene puller are used in U.S. Pat. No. 3,76/, 27 (
In Belky Patent No. 8'02. Sulfonamidophenol reducing agents are also described in U.S. Pat.
;l/, λ≠θ, a combination of a sulfonamide phenol reducing agent and a coupler per t is proposed.
[-1] Such a method had the disadvantage that the color image became cloudy because a reduction repair image and a color image were simultaneously generated in the exposed area after heat development. This drawback? As a solution, should I remove it with @image liquid processing or use only the dye?
There is a method of transferring the dye to another layer, for example, a sheet having 10 image-receiving layers, but it has the drawback that it is not easy to distinguish between the unreacted material and the dye and transfer only the dye.

? A method of introducing a nitrogen-containing heterocyclic group into an ally dye, forming a silver salt, and releasing the ↓ dye by heat development was published in Research Disclosure magazine, July 1971, issue J4'-41, page 1.
(L)-/966. in this way,
Is the pigment released in areas not exposed to light? Clear images that are difficult to suppress! It cannot be obtained and is not a common method.

11 Thermal Silver Dye Whitening Method V (For the method of forming a positive color image, see Research Disclosure Magazine 7B, February 3, 2015 (pages 7-32 tRD-/41u33), The same magazine December 15'76 issue l
Da~isBage (RD-is2λ7), U.S. Patent No. V,
2J! , No. 57, etc., describe useful dyes and bleaching methods.

However, this method requires extra steps and materials, such as heating the activator Sheetrah to speed up the dye whitening process, and the resulting color images may not be stable during long-term storage. However, the drawback is that the coexisting free silver causes gradual reductive bleaching. Color painting using 019 leuco dyes! For a method of forming 'x shadows, see, for example, US Patent No. 3. 16゜sb
Described in No. S, No. 1, No. 022, 1s17. However, this method has the disadvantage that it is difficult to stably incorporate leuco dyes into photographic materials, and the materials gradually become colored during storage.

The present invention provides a new method for forming shicolor images by thermal development and overcomes all the drawbacks of hitherto known phase materials.

That is, the object of the present invention is to produce hydrophilic dyes that are released by thermal development. A new image forming method is provided in which a color image is obtained by transferring the color image to an image receiving material containing a mordant.

An object of the present invention is to provide a method for obtaining clear color images using a simple method.

The objective of the invention is to create color IIfi that is stable over a long period of time.
All methods for obtaining an image are provided.2 Such features include at least a layer on the support of a halogenated oxidizing agent, a hydrophilic binder, and a dye release aid. A hydrophilic dye that is reducible to organic silver salt oxidizing agents? The dye-providing substance released is applied to a heat-developable color photosensitive material.

The heat-developable color photosensitive material of the present invention can be used to form a silver image that has a negative-positive relationship with the original and a diffusible dye in the area corresponding to the silver image by simply performing a thermal block treatment after image exposure. can be given at times.

That is, the thermal mass of the present invention is exposed to light, and when it is heated and developed, it is exposed to light.Silver saponide is used as a catalyst to form an organic silver salt oxidizing agent and a reducing dye-donating substance. In this step, a redox reaction occurs and a silver image is generated in the exposed area.In this step, the ♂X-donating substance is oxidized by the organic silver salt oxidizing agent to become the n1 oxidant. This oxidant is cleaved in the presence of a dye release aid, resulting in the release of a hydrophilic, diffusible dye. Therefore, in the exposed area, a silver image and a diffusible dye are obtained, and by transferring the diffusible dye, an IJ Schiller image is obtained.

Diffusible dye of the present invention? All releasing reactions take place in the buffy coat under crystallization. This diffusible dye release reaction 6,
It is thought that this is due to attack by a so-called nucleophile, and it is usual for -C to be present in several molecules.

In the present invention, although it depends on the type of dye-providing compound, the compounds mentioned as examples showed a remarkable reaction rate even in the buffy coat. This high response rate is an unexpected finding. Further, the dye-providing compound of the present invention can undergo a redox reaction with a silver halide or an organic silver salt oxidizing agent without relying on the so-called so-called oxidizing agents. kot'
This is an unexpected result based on the findings of saw rLl at a temperature near room temperature.

The reducing dye-imparting substance that releases all of the hydrophilic diffusible dye used in the present invention has the following general formula (Il denoted by ζt',
2).

CH3CH3 Here, G is a hydroxyl group or a group that provides an erihydroxyl group upon hydrolysis, Col is a dye or a group that provides a dye, and R is an alkyl or aromatic group.

The alkyl groups and alkyl residues mentioned above include unsubstituted and substituted alkyl groups, as well as branched, branched and cyclic alkyl groups.

In particular, in 2 above, specific examples of G include, in addition to a hydroxyl group, an acetoxyl group, a propionyloxy group, and an acyloxy group. As G, a hydroxyl group is particularly preferable. Examples of Cal include groups such as azo dyes, dizomethine dyes, indoaniline dyes, indophenol dyes, triphenylmethane dyes, anthraquinone dyes, indigo dyes, and metal lead salts thereof.

Typical groups that give a dye represented by Cal are those that give a dye by hydrolysis, such as those described in Japanese Patent Application Laid-Open No. 2003-120002 and US Patent No. 3゜2co2.
, 1, No. 6, No. 2, No. 1, No. 6, No. 7, No. 7, etc., as described in No. 1, there are products (temporary short-wave type mortar, cumulation) in which dyes are converted into auxochromic dyes. By temporarily shortening the wavelength for 1 ijt of the absorption of dyes during silencing, when these color image forming agents are mixed with a sensitized emulsion and coated, the reduction due to light absorption is reduced. You can prevent the feeling. For any purpose, it is also possible to use a color that has different hues when it is transferred onto a mordant and when it is present in an emulsion layer. Furthermore, Co1
The moiety may have a group that provides water solubility, such as a carboxyl group or a sulfonamide group.

Preferred examples of R include linear or branched alkyl groups having 1 to 30 carbon atoms (e.g. methyl, ethyl, propyl, butyl, pentyl, hexyl, octyl, dotecyl, pentadecyl, hexadecyl, oftadecyl, inpropyl, inbutyl). , t-butyl, t-amyl, neopentyl, etc.; substituted alkyl 2! These compounds require a ballast group that substantially prevents diffusion in order to avoid diffusion during thermal development.Requirements for ballast groups The size of the group or the number of carbon atoms depends on the conditions used, such as the heat development time,
Although it varies depending on the temperature, the number of water-soluble groups in 1 part of Co, and the als, at least r or more is required. If the number of carbon atoms becomes larger than necessary, it becomes disadvantageous in terms of solubility and extinction coefficient, but in principle there is no upper limit to the number of carbon atoms.

Generally, the most preferable range is for the number of carbon atoms to be around /J to 4tO.

In the most preferred embodiment of the present invention, G is a hydroxyl group, R
is a dodecyl, tetradecyl, hexadecyl or oftadecyl group.

The properties required of the dye-donating substance represented by Cot of the present invention include the following.

1. The organic silver salt is rapidly oxidized by an oxidizing agent and efficiently releases a diffusible dye for image formation through the action of a dye release aid.

The dye-donating substance must be immobilized in a hydrophilic or hydrophobic binder, and only the dye that is released must be diffusible.

3. Is it an image-forming dye that has excellent stability against heat-processed dye release aids and is resistant to oxidation? Do not release.

Examples include ease of synthesis.

Dyes that can be used as f1 elements for image formation include azo dyes, azomethine color chips, intraquinone dyes, naphthoquinone dyes,
Styryl dye, nitro dye, quinoline'f! ! There are dyes such as carbonyl dyes, carbonyl dyes, and phthalocyanine dyes, and representative examples are shown by hue. You can also do it.

Yellow 2 General, NO2 ■Mo2 R-C-C-C-NHR4 1I II II NO H Magenta R2It3 2R3 1 OH 1 N N General 2 3 H H In the above formula VC, IL□ to R6 are each a hydrogen atom, Alkyl group, cycloalkyl group, aralkyl group, alkoxy group, aryloxy group, aryol group, acylamino group, cyano group, hydroxyl group, alkylsulfonylamino group, arylsulfonyl ryomino group, alkyl group Sulfonyl group, hydroxyalkyl group, cyanoalkyl group, maroxycarbonylalkyl group, alkoxyalkyl group, monoyloxyalkyl group, nitro group, halokene, sulfurioyl group, N-fi1m sulfamoyl group, carbamoyl M, N -11 converted lupamoyl group, acyloxyalkyl group, ryomino group, substituted ryomimino group, alkylthio group,
Represents one substituent selected from the group consisting of a arylthio group, and the alkyl group and the aryl group moiety in these substituents further include a halogen atom, a hydroxyl group, a cyano group, an acyl group, a 7-syltermino group, It may be substituted with an alkoxy group, a carbamoyl group, an a-substituted carbamoyl group, a sulfamoyl group, a carboxyl group, an alkylsulfonylamino group, an alkylsulfonylamino group, or a ureido group.

The characteristics required for image-forming dyes are: 1) It must have a hue suitable for color reproduction; 1) It must have a large molecular extinction coefficient; 3) It must have a high molecular extinction coefficient; !It must be stable against I element release aids and other additives, g) be easy to synthesize, and j) have a hydrophilic foundation layer.Needle tubes that meet these conditions. Specific examples of new image-forming dyes are shown below.82N-802 is a reducible M
0 yellow 173- 8O□NH2 8 o 2CH3 SO2NH2 NO□ H 0CFl 3 NHCOCH3 00H l H 0II yan 02NH2 171 H SO.

H 8O□ H 8O2 Hydrophilic groups include hydroxyl group, carboxyl group, sulfo group,
Phosphoric acid group, imide group, hydroxamic acid group, quaternary ammonium group, carbamoyl group, substituted carbamoyl group, sulfamoyl group, substituted sulfamoyl group, sulfamoyltermino group, substituted sulfurylmoyltermino group, Vide group, Examples include substituted ureido groups, alkoxy groups, hydroxyalkoxy groups, and alkoxyalkoxy groups.

In the present invention, in particular, protons under basic conditions, those whose hydrophilicity is significantly increased by dissociation, monocyclic water, carboxyl groups, sulfo groups, non-acid groups, imide groups, hydroxamic acid groups, (substituted) Sulfamoyl group, (
Contains kmr sulfamoylamino group, etc. ! nru.

Next, specific examples of preferred dye-providing substances will be shown.

(1) ”　　　　　　　　O[3 SO□ C1 ■ 113 CIJ3 tsHa3' OH OH 02 0C16H33' Next, the method for synthesizing the dye-donating substance will be described.

Generally, the dye-donating substance of the present invention is obtained by condensing an amino group of a reducing substrate with a chlorosulfonyl group of an image-forming dye moiety.

The amino group of the reducing substrate R can be nitro,
It can be introduced by reduction of the nitrone, azo group or ring opening of the benzoxazole, and also as a free base.
It can also be used as a salt of an inorganic acid. On the other hand, the chlorosulfonyl group in the image-forming dye moiety is processed from the sulfonic acid or sulfonate of the dye by the action of a chlorinating agent such as phosphorus chloride, phosphorus pentachloride, or thionyl chloride. I can guide you.

The synthetic method of the dye part and its sulfonyl chloride is disclosed in JP-A-Kokai Shotei 1-/λ! g1, hirof-33116, getter
1/≠No.412, tter/ ,? It is described in No. 6J, No. 3.

The condensation reaction between the reducing substrate and the image-forming dye moiety Cal is generally carried out using pyridine, picoline, lutidine, or triethylamine in an aprotic polar solvent such as dimethylformamide, dimethylacetamide, dimethylsulfoxide, N-methylpyrrolidone, or cetonitrile. The reaction can be carried out in the presence of an organic base such as diimpropylethylamine at a temperature of o to "c, and the desired dye-donating substance can usually be obtained in an extremely high yield. Examples of its synthesis are shown below. show.

Synthesis example/gu-hydroxy-5-(/, /, J.

Synthesis of 3-tetramethylbutyl) phenylbenzenesulfonate (i, i, i, 3-tetramethylbutyl) hydroquinone cooyy (dissolved in acetonitrile + 100 x tl and added viridisita/d (i-). Then benzenesulfonyl chloride/7! The reaction solution was heated under reflux for a time of L s after the dropwise addition. After cooling the reaction solution, 0.1% hydrochloric acid i, 1zyz was added, and the precipitated crystals were counted to obtain l-hydroxy-3-<i
, i, 3.3-tetramethylbutyl)phenylbenzene sulfo f-)j262 was obtained.

m, p, / +j-/fj' (: Kura M, example μm hexatecyloxyj-(/.

/, J,, i-tetramethylbuty/L) Synthesis of phenyl benzene sulfonate Synthesis of l-hydroxy-3-(/
, I, J, 3-tetramethylbuty/I-) phenylbenzene sulfonate, 2 J 79 yDM Fu74
It was dissolved in 1 ml.

After the sodium hydroxide had cooled to 30.39f, add 2 drops of l-pro-7-hexate and 1 drop of 69fJO-jjoC.

After stirring at js0c for 2 hours, the mixture was poured into water and extracted with 700ml of ethyl acetate (1,1ζ). Ethyl vinegar? The crystals were removed under reduced pressure with 12 ounces of ethanol, cooled at 0 °C, and then separated. 3-2 pieces, 1yy
r profit*.

Synthesis of m, p, 4'2-4' j ° C 7C4cm hexadecyloxy-3 (/,
/,J,! -Tetramethylbutyl J phenylbenzenesulfonate L Tako, 32, dioxane 1921, potassium hydroxide tjt, bf, and water bat'q were mixed and heated under reflux for an hour under a nitrogen stream, then ethanol Jl was added to the reaction solution.
2xl of water was added to the mixture and cooled.

Separately, sulfanilic acid//J in 3qOal/J dihydrochloric acid
, Jfl and sodium nitrite≠2. If the prepared diazo solution was added at 1s0(-300°C), the mixture was further stirred for 30 minutes at that temperature.
Stirred at OoC for 1 hour. Add ethyl acetate 6601 to the reaction solution
Add Llf and separate the layers, add acetic anhydride tl to the upper layer at 50C or less.
b, added jrdf. The reaction solution was diluted with r% hydrogen carbonate) I
Wash thoroughly with aqueous solutions of Jum, 3z and j, saline, bjOttl, and ethyl acetate? Methanol rpo after distillation under reduced pressure
Added rtttkura. o Crystals precipitated after cooling with Cc-t? 26.69 pieces of coacetyl minnow hexadecyloxy-j-(/,/', J, 3-tetramethylbutyl)phenol were obtained, m, p, 76-7J"C Synthesis flJ4' Synthesis of t-hexatecyloxy-!-(/, /, J, J-tetramethylbutyl)phenol a. , /, J,! - Tetrame 1,000 rubu, 1,000 ruj Phenolta 2,39, 3 ml of ethanol, and ssme Yk of hydrochloric acid were mixed and heated for j hours. After cooling, 3λOml of water and 3 ml of hexane were added, and liquid [7
After that, add p-)luenesulfone r1! to the upper layer. , 2/0
1i', meta/-ru l J 3rnlf) JD engineering liquid separation. 00ml of water in the lower layer, 3.0ml of ethyl acetate. After cooling to O(-), the precipitated crystals were collected, and the precipitated crystals were separated. .3-tetramethylbutyl)phenol p-)luenesulfonic acid 7g, 07? Obtained.

m, p, / 6j-1700C (decomposition) synthesis example F
L Konitro! Synthesis of -(1,/,3.J-1-tetramethylbutylene-hydride a-quinone diacetate) Add 1 otnt of sulfuric acid to acetic anhydride, then add 1 otnt of sulfuric acid to
Below o0c /, /, J,! - Add tetramethylbutylhydroquinone Koko 1 little by little.

After stirring for 30 minutes, fuming glass rli, jλ, 3 below j'C
Go was added dropwise over a period of 3 hours. After stirring for another hour, it was poured into a mixture of 1 liter of methanol and 00 ml of ice cubes to precipitate trap crystals. House counting trap. Yield It, 71! , m.

p, /λj-/J7°C Synthesis example a Synthesis example of 4'-acetoxy-λ-acetylamino-j-(/, /, J, J-tetramethylbutyl)phenol! Cornito cx-j-(/ , /
.

3. Mix 3-tetramethylbutyl) hydroquinone diacetate, 100 ethanol, and 100 mtf of water, to0c'''C2 steamed ammonia water tott2
Dripping trap. Next, sodium hydrosulfide!
Kollif1i was added little by little. l! After stirring for a minute, acetic anhydride! Drop 6go with 3o, uooc and trap. After cooling to 100C, water/Ilk was added, and the precipitated crystals kF were collected to obtain 137.6 f'ft of Hiro-acetoxycoacetylamino-j-(/,/,3.J-tetramethylbutyl]phenol.

m, p, /17~/90'C combination example 7. j-hydroxy-λ-methyl-6-(/
,/,3. Synthesis of J-tetramethylbutylnobenzoxazole Synthesized in Synthesis Example 6, 7Cμm acetoxyλ-acetylamino-5-(i,i,i,i-tetramethylbutyl)phenol i,x,iy,p-toluenesulfone [ /, 2
．． 4'r, toluene 10ml 1k mixed, water produced? The mixture was heated under reflux for 3 hours while removing the mixture.

After cooling, λg% sodium methylate methanol solution l
After stirring for io minutes, add hydrochloric acid to neutralize. Next, the trap was heated to remove water by azeotropic distillation, and then cooled to collect the precipitated crystal tF. When the obtained crystals are washed with water to remove inorganic substances and dried, j-hydroxy-comethyl-6-
(/, /, J.

3-tetramethylbutylbenzoxazole,
lrr was obtained. m,p,/7co/7j'C Kuranari example & j-hexadecyloxy-comethyl-6-(/,
/,J,! -Tetramethylbutyl)-be/dioxazole Obtained in Synthesis Example 7! -Hydroxy-λ-methyl-4-
(/, /, J, j-Tetramethylbutylnobenzoxazole IIffDMFλ4' Dissolved in Omi, 700
Sodium hydroxide, 2r, and HiroP' were added at C. Then, after dropping 133°7 Pi of l-bromohexadecane,
Stir and trap at o 0c for 30 minutes.

After cooling, 2 ml of ethyl acetate and 4 ml of water were added to separate the layers. After washing the upper layer with water, ethyl acetate was distilled off under reduced pressure, and the residue contained 2.0 trtl of ethanol and 100 ml of acetonitrile. ! :added. Cool down to 100C,
Furthermore, acetonitrile IjOmlf was added, stirred, and the precipitated crystals kP were collected. -hexadecyloxy-λ-methyl-,g-(1,1,J,!-natramethylbutylnopenzoxazole 1uby2 obtained 7C0m,p,
77-j-OC Synthesis Example 9, -mono-amino-hiro-hexadecyloxy-(/, /,, 3.3-tetramethylbutyrunphenol synthesis Example 7) Decyloxy-λ-
Methyl-6-(/, /, 3.3-tetramethylbutyl)
Benzoxazole 1riy, ethanol 11. ,il
, a mixture of % hydrochloric acid 3o-? Heat reflux trap for 3 hours. Ethanol/, 211 plus homo-m solution and p- after Lrc)
Luenesulfonic acid 3! Add Ko2 and trap. After stirring for a while, it was cooled, and the precipitated crystals KP were collected, and Koamino-Hiro-hexadecyloxy-j-(/, /, 3.3-tetramethylbutyrunphenol p-toluenesulfonate -〇Jf) was obtained. 7f-f obtained.m, pt 6r-i
7o 'C (Decomposition) Synthesis Example 10. Synthesis of dye-donor *tl) Synthesis example Hiroma trap was obtained by the same synthesis example as co-amino-μm hexadecyloxy'('#' a 313-tetramethylbutyl ]Phenol p-1 luenesulfonate/μ
, of N,N-dimethylacetamide 6 under nitrogen flow
Dissolve in Kogo, add 29276.6m1f, and add 3-
Cyano-μm [3-chlorosulfonyl-Hiro-(J-methoxynidoxinphenylazo)-/-phenyl-s-
Gila 7'ron/1. θ2 gold was added. The mixture was stirred at room temperature for 7 hours and then stirred at j00c for 30 minutes. Ethyl acetate/32d and Hirochi Sodium Carbonate aqueous solution tl-r were added to the reaction solution, and the layers were separated. μ-linked sodium carbonate aqueous solution 1
I washed it once with 3 coats. Next, methanol λ6 and 36
% salt concentration/lrd was added, and the mixture was cooled to s'C and the precipitated crystals were collected.

Yield/3. Co1, m, p, /16~l/JrQC synthesis example IL Synthesis of dye-donating substance αQ Synthesis example Hiroshi or synthesis example? 11 aminohiro-hexadecyloxy-j- obtained in
(/, /, J, J -tetramethylbutyl)phenol p-)luenesulfonate/! , under a stream of nitrogen, dissolve N-dimethylacetamide,
Add pyridine li, smt2, and further refer to [J-li c1
0sulfonyl-4(-(J-methoxynidoxinephenylazo)-2-(N,N-dimethylsulf77'l Renault j-methylsulfonylamino-7-naphthol/r,z
yvI-Additional trap. After stirring for 1 hour, ethyl acetate/-0-water/20ml was added and the liquid was separated.
Further, the upper layer was washed with saline solution.

After 7 mL of ethyl acetate was completely distilled off under reduced pressure, ethanol was added to the residue.
Add methanol and methanol, cool to OoC, and collect 7 crystals. The obtained trap crystals were recrystallized from a mixed solvent of ethanol and methanol (Koni/) to form traps. Yield/J, oy, nl, p.

70-7 0C Synthesis Example 12. Dye-donor substance (synthesis of IQ? lJ
Hiromasu obtained in Synthesis Example 7 λ-Amino-Hiro-hexadecyloxy-j-(/, /, J, J-tetramethylbutyl)phenol p-)luenesulfonate λ, 7v?
The patient was treated with DMAc7j- under a nitrogen stream. pyridine hiro mt
Add k and more! -(3-p-rolosulfonylbenzenesulfonylamino)-μm(2-methylsulfonyl-Hiro-
Nitrophenylazo) -/- 7 torr/6r (i7 added and stirred at room temperature for 30 minutes. Then, stirred for 700C''?'λ hours and after 1ζ, acetone iiomt, water!6-, and methanol 100df were sequentially added. An oily substance was obtained. This was purified by silica gel column chromatography (eluting with a mixed solvent of 7 tons of ethyl acetate (lO:/N)), and then recrystallized with ethanol and collected.
u, Jfm, p, 2/A ~, L20C Other dye-donating substances can also be synthesized using almost the same method as in the above synthesis example. For example, the melting point of the dye-donating substance (6) is 170~17j0C, H is h/sJ~/3!'C, (2LCta7J~76
At °C% (2) /J'Hiro~isr 0c.

The reducible dye-donating substances that release the diffusible dyes of the present invention can be used in a wide range of concentrations.

Generally useful concentration ranges are from about o,oi moles to about hmols of dye-donating material per mole of organic silver salt oxidizing agent. Concentrations particularly useful in this invention range from about 0.03 moles to about 1 mole per mole of silver.

In the present invention, a reducing agent sound can be used as required. In this case, the reducing agent is a so-called auxiliary developer, which is oxidized by a silver salt oxidizing agent or a silver halide, and its oxidized form is the reducing substrate in the dye-donating substance. Ability to oxidize? It is something that you have.

Useful auxiliary developers include hydroquinone, tert-butylhydroquinone and λl! Alkyl-substituted hydroquinones such as dithylhydroquinone, catechols,
There are 84 polyhydroxybenzenes such as pyrogallols, halogen-substituted hydroquinones such as chlorohydroquinone and dichlorohydroquinone, alkoxy-substituted hydroquinones such as methoxyhydroquinone, and methylhydroxynaphthalene. Furthermore, to methyl gallate, ascorbic acid, and ascorbic acid derivatives.

Hydroxylamines such as N'-di(,2-ethoxyethylnhydroxylamine, l-phenyl-3-pyrazolidone, Hiro-methyl-1 Hiro-hydroxymethyl-7
-phenyl-3-pyrazolidone tetronic acids are useful.

Auxiliary developers can be used in a range of concentrations. A useful concentration range is from 0.0 times mole to 0 times mole relative to the organic silver salt oxidizing agent or silver halide, and a particularly useful concentration range is 0.0 times mole to 0 times mole. / times mole to μ times mole.

The photosensitive silver halide used in the present invention is in the range of o, ooz moles to 5 moles, preferably in the range of o, ooz moles to /0 moles, per mole of the organic silver salt oxidizing agent. .

Examples of silver halides include silver chloride, silver chlorobromide, silver chloroiodide, silver bromide, silver iodobromide, silver chloroiodobromide, and silver iodide.

Silver halide grain size ranges from 0.00/ltm to 28
m, preferably o, ooi μm to 1 μm.

The silver halide used in this invention may be used as is, but it may also be compounded with chemical sensitizers such as compounds such as sulfur, selenium, tellurium, gold, platinum, palladium, rhodium, iridium, etc.)・Reducing agents such as tin logenide or 7C
It can also be chemically sensitized by using a combination of methods. For more information, see “The Theory of the
PhotographicProcess' u version,
T. H. James, Chapter 5, pages 1-16.

The organic silver salt oxidizing agent used in the present invention is a silver salt that is relatively stable to light, and when exposed to light in the presence of silver halide, the organic silver salt oxidizing agent is heated to a temperature of at least 0°C, preferably at least 0°C. At a temperature of f'L1, the image-forming substance or 7'c reacts with a reducing agent coexisting with the image-forming substance as necessary to form a silver image. Examples of agents include:

It is a silver salt of an organic compound having a carboxyl group r, and typical examples include silver salts of aliphatic carboxylic acids and silver salts of aromatic carboxylic acids.

Examples of aliphatic carboxylic acids include silver salts of behenic acid, silver salts of suderic acid, silver salts of oleic acid, silver salts of lauric acid,
Silver salt of capric acid, silver salt of myristic acid, silver salt of palmitic acid, silver salt of maleic acid, silver salt of fumaric acid, silver salt of tartaric acid, silver salt of furoic acid, silver salt of linoleic acid, silver salt of linoleic acid. Examples include silver salts, silver salts of oleic acid, silver salts of adipic acid, silver salts of sebacic acid, silver salts of succinic acid, silver salts of acetic acid, silver salts of butyric acid, and silver salts of camphoric acid. Furthermore, silver salts substituted with halogen atoms or hydroxyl groups are also effective.

Silver salts of aromatic carboxylic acids and other carboxyl group-containing compounds include silver salts of benzoic acid, silver salts of 3゜j-dihydroxybenzoic acid, silver salts of 0-methylbenzoic acid, m-
Silver salt of methylbenzoic acid, silver salt of p-methylbenzoic acid,
-, silver salts of substituted benzoic acids such as silver salts of tazicumylbenzoic acid, silver salts of acetamidobenzoic acid, silver salts of p-phenylbenzoic acid, silver salts of gallic acid, silver salts of tannic acid, silver salts of phthalic acid. , silver salt of terephthalic acid, silver salt of salicylic acid,
Silver salt of phenylacetic acid, silver salt of pyromellitic acid, US Patent No. J, 71'! , silver salt of 3-carboxymethyl-Hiro-methyl-Hiro-thiazoline-corchion described in IJO, US Pat. No. 3,330.

41? Examples include silver salts of aliphatic carboxylic acids containing no thioether group as described in the specification.

In addition, there are silver salts of compounds having a mercapto group or a thione group and derivatives thereof.

For example, 3-mercazotoh-phenyl, λ.

Silver salt of Hiro-triazole, silver salt of λ-mercaptobenzimidazole, silver salt of comercapto j-aminothiadiazole, silver of λ~mercaptobenzithiazole 4.
Silver salt of 2-(s-ethyl glycolamide fubenzthiazole), S-alkyl (alkyl having 1λ to 22 carbon atoms) thioglycolate, etc. 1jjlJ Akihiro f-2
Silver salts of thioglycolic acid described in No. 12λ1, silver salts of dithiocarboxylic acids such as silver salts of dithioacetic acid, silver salts of thioamides, j-hydroxy-l-methyl-2-phenyl-
Silver salt of Hirothioviridi/, silver salt of mercaptotriazine, silver salt of Komelkabutobe/zooxazole, silver salt of mercaptooxadiazole, US patent (A.

3. Silver salts and traps described in λ74A No. 1, for example, L.

-1μm mercaptotriazole derivative 4-c 3-amino-! -benzylthio/, ko, hiro- triazole silver salt, US patent! , 3θ/, 3- described in No. 77r Mei MB book
It is a silver salt of a thione compound such as a silver salt of (cocarboxyethyl)-gumethyl-μm thiazoline-2thione.

In addition, there are chemical silver salts with imino groups. For example, silver salts of benzo)IJ azole L and its derivatives as described in Japanese Patent Publication No. 111/--30, 2701, 111-/1, 16, 2701, 2701, 111-/1, and derivatives thereof, such as silver salts of benzotriazole, silver salts of methylbenzotriazole, etc. silver salt of benzotriazole, silver salt of j-chlorobenzotriazole, silver salt of converted benzotriazole, silver salt of carboimidobenzotriazole, such as butylcarboimidobenzotriazole SM, US Pat. J.J.
. .

Examples include silver salts of /, -L, μ-triazole and /-11-tetrazole, silver salts of carbazole, # salts of saccharin, and silver salts of imidazole and imidazole derivatives described in No. 7Q Specification 4I.

Ma7ko Research Disclosure VO1/701
Organic metal salts such as copper stearate and copper stearate, which are described in 7'/7, June 1971, are also specific metal salt oxidizing agents that can be used in the present invention.

Although the thermal leakage image process during heating according to the present invention has not been fully elucidated, it can be considered as follows.

When a photosensitive material is irradiated with light, a latent image is formed on the sensitive silver halide. Regarding C, T.

11. “The T11 theory” written by James
f the1'photographjc Proc
ess' j rdlnition's 10! Q
-A described in IIITA.

In the case of heating the photosensitive material, a reducing agent is used, and in the case of the present invention, a color pigment donating substance is used, and an alkaline agent that is released upon heating is used to form a latent image nucleus. As a catalyst, an organic silver salt oxidizing agent or
ζ reduces the silver salt oxidizing agent with a halogen and generates a recording, and the 2L itself is oxidized to this oxidized dye-donating substance, which is then converted into a nucleophilic reagent (in this study). colored water release aid)
attacks, and the dye is released.

Silver halide, 4J silver salt oxidizing agent and dye donor'
J! may be present in the same layer, or may be present in another layer in contact with the IA.

Separately formed silver halide and organic silver salt oxidizer;
Although it is possible to prepare the L coating liquid by mixing it with the NtJ used, it is also effective to mix both R and mix in a ball mill for a long time. Also effective is a method in which a halogen-containing compound is added to the prepared organic silver salt oxidizing agent to form L-dihalogen silver with the silver from the organic silver salt oxidizing agent.

For information on how to make these silver halides and organic silver salt oxidizing agents and how to mix both, please refer to Research Disclosure/No. l-guco! Jri, U.S. Patent 3°700.4111
No., JP-A-44Y-IIA-Guri, JP-A-Sho JrO-/7
It is described in No. J/1.

In the present invention, the coating i of photosensitive silver halide and organic silver salt oxidizing agent is the sum of tit in terms of silver! θ〜〜10f/
, 2 are common insects.

The photosensitive silver halide, organic silver salt oxidizing agent of the present invention is prepared in the following binder. A dye-providing substance is also dispersed in the binder described below.

The binders used in the present invention can be contained alone or in combination. This binder has
Hydrophilic materials can be used. Hydrophilic binders are typically transparent or translucent hydrophilic colloids, such as natural substances such as proteins such as gelatin, gelatin derivatives, and cellulose conductors, polysaccharides such as starch and gum arabic, and polyvinyl vinyl. Contains synthetic polymeric substances such as water-bathable polyvinyl compounds such as aridone and acrylamide polymers. Other synthetic polymeric compounds include dispersed vinyl compounds which, in the form of latexes, particularly increase the dimensional stability of the binder.

Various dye release aids can be used in the heat-developable color photosensitive material of the present invention. A dye-releasing agent is one that can nucleophilically attack the nyc dye-donating substance oxidized by an organic silver salt oxidizing agent and release all of the diffusible dye. A water releasing compound is used.

Among these dye-releasing aids, bases or base-releasing agents are particularly useful because they not only promote the overall dye release but also promote the redox reaction between the organic silver salt oxidizing agent and the dye-donating substance. It is.

Examples of preferred bases include amines, including trialkylamines, hydroxylamines, aliphatic polyamines, N-alkyl substituted aromatic amines,
N-human mixyalkyl-substituted aromatic amines and bis[p-(dialkylaminone phenylcomethanes');
b can be given. Matrap U.S. Patent No. 4/-io,
No. 6, No. q lists hetain tetramethylammonium iodide and diaminobutane dihydride aryalide, while U.S. Patent No. 3 Sob and Ko No. 4 A No. 4 list organic compounds containing urea, 6-aminocaproic acid, and other amino acids. is useful. Is the base release agent a basic component when heated? It is something that is emitted. Examples of typical base releasing agents are described in British Patent No. Tata T.R.A.Y. Preferred base release agents are carboxylic acids and organic bases, such as useful carboxylic acids such as trichloroacetic acid and trifluoroacetic acid, and useful bases such as guanidine, piperidine, morpholine, and p-).
Examples include luidine and λ-picoline. US Patent No. 3゜2
Guanidine trichloroacetic acid described in λO1t Ko No. 6 is particularly useful. Aldonamides described in JP-A No. 30-22623 are preferably used because they decompose at high temperatures to produce bases.

A water-releasing compound is a compound that decomposes during a thermal mass image and releases water, i.
It is a compound that replaces a compound that waits for a vapor pressure of 10 μl or more at a temperature of oo~-000 (:). These compounds are known especially in the transfer printing of fibers, and are described in Japanese Patent No. 1985-RR3RT (DNH4Fe(8
04)2 ./uH20 and the like are useful.

These dye release aids can be used in a wide variety of ways. 17 ioo, i in molar ratio to silver.

It is preferably used in a range of 1/20 to 4 times.

Further, in the heat-developable color photosensitive material of the present invention, a compound that stabilizes images can be used at the same time as activation of development. Among them, isothiuroniums typified by co-hydroxyethylinthiuronium and trichloroacetate described in U.S. Patent No. 3,30i, 6''yz, /, I-(J, Bisisothiuriums such as [6-thioxaoctane]bis(isothiuronium trifluoroacetate), thiolated complexes described in West German Patent No. 7/62,7/4A, U.S. Patent No. 3, oico , Thiazolium compounds such as mono-amino-thiazolium trichloroacetate and λ-amino-promoethyl-thiazolium trichloroacetate described in Collo No. 0, U.S. Patent No. μ, 0
Compounds having α-sulfonylacetate as an acidic moiety, such as bis(co-amino-thiazolium methylene bis(sulfonylacetate)) and co-amino-thiazolium phenylsulfonylacetate described in No. 60, 41. , U.S.%w!f No. 3, orr.

1) Cocarboxycarboxamide as the acidic moiety described in issue? Preferably, a compound with a compound such as Nodo is used.

These compounds or mixtures can be used in a wide range of ways. It is preferably used in a molar ratio of I/10o, io times, particularly 7720 to 2 times, relative to silver.

The heat-developable color photosensitive material of the present invention can contain a heat solvent. The term "thermal bath agent" herein refers to a non-hydrolyzable organic compound that is solid at ambient temperature but exhibits a mixed melting point with other ingredients at temperatures below the heat treatment temperature used. It is the material. The thermal solvent includes a compound that can serve as a solvent for a developer, and a substance with a high dielectric constant for physical development of silver salt? Compounds known to promote this are useful. Useful thermal solvents include US Percentage No. 3.3V7.
．． Polyglycols described in No. 671, such as semiuniform molecular j
jk/so□x-kooo oo polyethylene glycol, oleate ester derivatives of polyethylene oxide, beeswax, monostearin, -5O2-1-
Compounds with high dielectric constants having CO groups, such as acetamide, succinimide, ethyl carbamate, urea, methylsulfonamide, ethylene carbonate, US Pat. No. 3.6t7. Polar substances described in Rijri issue, lactone of hydroxybutanoic acid, methylsulfinylmethane, tetrahydrothiophene-1l/-dioxide, Research Disclosure magazine December 1276 issue 26-
Preferably used are t, io-decanediol, methyl anisate, biphenyl perate, etc. described on page 1.
Ru.

In the case of the present invention, the dye-donating substance is colored, and further,
Although it is not so necessary to incorporate irradiation or antihalation substances or dyes into the light-sensitive material, in order to further improve the sharpness, it is possible to further improve the sharpness as described in Japanese Patent Publication No. 4TR-36 Octopus and U.S. Patent No. 3. -2! J, No. 1.21, Noriko, 127
．． No. 1113, λ.

Rijuru,! As stated in each specification such as R7R,
Filter dye or absorbent material? It can be included. -1 Preferably, these dyes are thermally decolorizable, for example, US%n No. 3.762. oiri issue, 3rd and 7th hiros, oori issue, y, 6ij, hiro 3
．． Preferred are the dyes described in No. 2.

The photosensitive material according to the present invention may contain various additives known as heat-developable photosensitive materials and layers below the photosensitive layer, such as anti-silt layer, electrical layer, protective layer, intermediate/7 layer, Afi layer,
It can contain gold, such as 9 layers of foil. Each '4nf E
rg additive and 'c is "Re5earchDi 5clo"
sure'Vel/70 June 1971/70
Examples of additives listed in the λ number include plasticizers, sharpness improving dyes, AH dyes, sensitizing dyes, matting agents, surfactants, fluorescent whitening agents, and antifading agents.

Similar to the heat-developable photosensitive layer according to the present invention, for the retention layer, intermediate layer, undercoat layer, back layer and other layers, each coating solution is prepared using a dipping method, an air knife method, or a curtain coating method. A light-sensitive material can be prepared by sequentially coating Matara on a support using various coating methods such as the hopper coating method described in US Pat.

Furthermore, if necessary, one or more layers can be applied simultaneously by the methods described in US Pat.

Various exposure means can be used for the heat-developable photosensitive material according to the present invention. The m-image is obtained by imagewise exposure to radiation, including visible light. Generally, the light sources used for normal color printing are tungsten lamps, mercury lamps,
Halogen lamps such as iodine lamps, xenon lamps,
A laser light source, a light source, a fluorescent tube, a light emitting diode, etc. can be used as the light source.

As an original drawing, it can be used not only for line images such as technical drawings, but also for gradation. Even the 7C Yoshin image is L. It is also possible to photograph portraits of people and landscapes using a camera. When printing from the original drawing, is it one reflection printing even if you overlay it with the original drawing? It may also be printed or enlarged and printed.

The image information taken by a trap video camera, etc., is sent directly to TV stations and FOs.
It is also possible to print the image on a heat-developable photosensitive material by applying it to the T and forming an image on the heat-developable material by applying this SR contact or processing the lens.

Furthermore, LEDs (light emitting diodes), which have recently seen great progress, are being used as nose tips or display means in various devices. It is difficult to make this LED that effectively emits blue light. In this case, to reproduce a color image, green light, red light,
Three types of dyes that emit infrared light may be used, and the dyes may be set so that the exposed areas exposed to these lights emit yellow, magenta, and cyan dyes, respectively.

That is, the green-sensitive part (7 is the yellow dye-donating substance 1j
Make sure that the red-sensitive part (layer) contains a magenta dye-donating substance, the infrared-sensitive part (layer) contains a cyan dye-donating substance. The combination of 7 is also bJ Noh.

In addition to the method of directly projecting the above-mentioned original map, it is possible to use a light receiving element such as a light tube or CCIJ to irradiate the original map, and then store it in the memory of a reading computer. information? After performing so-called image processing, which is processed as necessary, this image information is reproduced on a CRT, and this f'L is converted to l[1111M! There is also a method of directly causing the JaLED to emit light and exposing it to light based on the processed information.

Heat-developed color photo A4! After multiple exposures, the resulting latent image is
For example, about tO°C to about 2zooC and about Q.

The element at a moderately elevated temperature, such as from 5 seconds to about 300 seconds? It can be developed by heating the entire surface. As long as the temperature is -4t within the above range, both high and low temperatures can be used to increase or shorten the heating time. Particularly useful are temperature ranges from @ilo°C to about ibo 0c. The heating means may be simply a hot plate, an iron, a hot roller or the like.

In the present invention, color images are created by development? A preferred specific method of forming traps is thermal diffusion transfer of hydrophilic diffusible dyes. For this purpose, heat-developable color photosensitive materials are
The support is formed of a photosensitive layer (1) containing at least a oxidizing agent, an organic @salt oxidizing agent, a dye-donating substance which is also a reducing agent, and a hydrophilic binder, and a layer (I). An image-receiving layer (I
I) Niji configuration.

The dye release aid may be included in the photosensitive layer CI) or in the image-receiving layer (n). Alternatively, means for applying the dye release aid (e.g., a breakable body containing the dye release aid, a trap roller impregnated with the dye release aid, or a device for spraying a liquid containing the dye release aid) may be provided. Even five.

The above-described photosensitive layer (I) and image-receiving layer (n) may be formed on the same support, or may be formed on separate supports. The image-receiving layer (n) can also be peeled off from the photosensitive layer (1). 7C For example, after imagewise exposure of a heat-developable color photosensitive material, uniform heat development is performed, and then an image-receiving layer (■
)? It can be torn off.

However, in another specific method, it is also possible to overlap the image-like photosensitive layer (17) with the image-receiving layer (17) and transfer the dye at a temperature lower than the development temperature. "Development temperature low temperature" includes room temperature, and preferably refers to a temperature lower than room temperature by about 00C. For example, heat development temperature /, to"c, transfer temperature J'117o
This corresponds to C, etc.

In addition, only the photosensitive layer (I) has 4jj! There is also a method in which the image receiving layer (l[)k is overlapped with θ and the image is uniformly heated and visualized.

The received image Jd (n) includes a dye mordant.Various mordants can be used in the present invention, and a useful mordant can be selected depending on the physical properties of the dye, transfer conditions, other components contained in the dye material, etc. You can choose. The mordant used in the present invention is a high molecular weight polymer mordant.

The polymer mordant used in the present invention has secondary and tertiary amine groups. Polymers containing nitrogen-containing complex moieties, polymers containing these μ-class cation groups, etc., in which the molecule X is 1,000 to =00.00θ, especially io,
It is of o~sO,000.

For example, US Patent Co.! Hirot! 6gris, same co.

Hirozaa, 4tJo issue, same J, 1411, 06/
Vinyl pyridine polymers and vinyl pyridinium cationic polymers disclosed in No. 3,7 6, xi hong lia, etc.; US fjn 3,6 λ! j6rimu, same 3
．． II ri, ori tr, ti-, i2r.

j31, UK 4'H'F/, 277, 4ts3
-+Polymer mordant capable of crosslinking with nonzeditin etc. disclosed in JiakiaS et al.; U.S. Pat. No., same co, 7ri r, ot,
i-@, Tokukai Shoj Goo 1/! Aqueous sol-type mordants disclosed in Meiji III, etc.; Disclosed water-insoluble mordants; U.S. Pat.
No. 333) A reactive mordant capable of forming a covalent bond with the dye disclosed in the specification; and US tl'7fl! ,
70? , Ar No. 1, same j, 711, 1! ! No. 3, A412, Hiroza λ- No. 3, Ichikawa No. 3, Hiroit, No. 7ot, I4j, jj7. (1)4
No. 6, No. 3. Core/,/μ7 No. 3,271. /
No. 41, Japanese Patent Publication No. ShojO-7/JJ1, No. 13-303
ir issue, same j, 2-/36!21 issue, same! The mordant disclosed in No. 3-/λj and J3-10217 can be heated.

Other US%-rF-2,67! , 3/6 issue, same co.

Mention may also be made of the mordants described in IT Co., No. 156, Specification a.

Among these mordants, in the infection layer, mordant 1- to other,
It is preferable to use a material that does not easily migrate into the layer, such as gelatin, etc. A material that undergoes IJ Lux crosslinking reaction, a water-insoluble mordant, and an aqueous sol (or latex dispersion) type mordant?
It can be preferably used.

Which polymer mordant is preferred? It is shown below.

(1) A group having all 4'M ammonium groups and capable of covalently bonding to gelatin (e.g., an aldehyde group, a chloroalkanoyl group, a chloroalkyl group, a vinylsulfonyl group,
pyridinium propionyl group, vinyl carbonyl group, alkylsulfonoxy group, etc.) For example, (2) a repeating unit of a monomer represented by the following general formula and a repeating unit of another ethylenically unsaturated monomer and ρ.
A reaction product between a copolymer consisting of

group, aryl group, Ma7ctri R23-R21) At least λ are combined to form a heterocycle You may.

X: Anion (The above alkyl group and aryl group are substituted and include nine groups.) (3) Polymer represented by the following general formula X: about O, coj
, ~about S mol y: about 0 to about 0 molar ratio 2: about io to about 2 mol A: monomer having at least two ethylenically unsaturated bonds B: ethylenically unsaturated monomer capable of copolymerization -Q:N,
P 几31, 几32. R33: Alkyl group, cyclic hydrocarbon group, or at least two of R31 to R33 may be combined to form a base. (These groups and groups may be substituted.) (4) Copolymer consisting of (a), Φ) and (C) (a) X: Hydrogen atom, alkyl group or halogen atom (alkyl group is substituted) ) (b) Nisder acrylate (C) Acrylonitrile (5) Represented by the following general formula
A water-unbathable polymer having 3 or more R41, R42, R<a: 'f:n-'f:'n alkyl Mkab, and the total number of carbon atoms of Ra1-)Lsa is /J or more. (The alkyl group remains long even if it is substituted.N : Atom 1L51 necessary for photoformation of nitrogen-containing heterozygote
52: IL Alkyl, Human Mixialkyl, Aralkyl In other words, gelatin produced by different gelatin production methods such as coal-processed gelatin or acid-treated gelatin, or obtained by chemically modifying gelatin with heptalization, sulfonylation, etc. It is also possible to use gelatin. You can also go to the station where you need it and use it.

Mixing ratio of polymer mordant and gelatin of the present invention and
A person skilled in the art can easily determine the coating amount of J, the amount of dye to be mordanted, the type and composition of the polymer mordant, and the image forming process to be used. Yes, but the mordant/gelatin ratio is xo7ro, ro7
ao (weight ratio), mordant application amount is 0, 7-111/
Preferably, it is used in m2.

The image receiving layer (I[) may include a white reflective layer. For example, titanium dioxide J'lik dispersed in gelatin can be applied over a mordant layer on a transparent support.

The titanium dioxide layer forms a white opaque layer, and the transfer color is V.
When the 7jjJ image is viewed from the transparent support side, a reflective color image is obtained.

A typical image-receiving material for diffusion transfer is obtained by coating a polymer containing an ammonium salt mixed with gelatin onto a transparent support.

A transfer solvent can be used to transfer the dye from the photosensitive layer to the image-receiving layer. The transfer solvent includes water and soda 1. Potassium, an inorganic alkali metal salt? A basic aqueous solution containing Further, low boiling point solvents such as methanol, N,N-dimethylformamide, acetate/diisobutyl ketone, and a mixed solution of these low boiling point solvents and water or a basic water bath liquid are used. Is the transfer solvent the image receiving layer? It may be used by moistening it with a solvent, or it may be incorporated into the monthly charge as crystal water or microcapsules.

Example 1 Benztriazole 6, sy and gelatin 10f? water/
Dissolves in 000-. This solution was kept at 5jO'C and stirred. Next, a solution soaked in 100 g of silver nitrate and SY2 water was added to the above bath solution.

Next, bathe in potassium bromide/, λfk*jO-.
- Add in minutes. lfJ size 7″l-7zeta emulsion ip
Excess salt is removed by settling with H adjustment. The pH of the emulsion was then adjusted to A17. The accommodation is coooy and a trap.

Next, we will describe how to make a gelatin dispersion of a dye-donating substance.

Dye-donating substance GO) k101 As a surfactant, succinic acid-λ-ethylhexyl ester sulfo-7 (fi sorter 0, j f, ? Add about A (7'CK) to dissolve it by heating to make a homogeneous solution. After stirring and mixing this solution with 100 ml of a 10% solution of coal-treated gelatin, add 10,000 ml of gelatin for 10 minutes using a homodiizer.
Disperses at 0 PM.

This dispersion? It is called a dispersion of a dye-donating substance.

Next, a method for preparing the photosensitive coating (A/) will be described.

(a) Photosensitive silver bromide fully containing benzo) IJ azole silver emulsion 1oy (b)
Dispersion of dye-donating substance 3M (C) Guanidine trichloroacetic acid ujOq'ji Ethanol λ,! −
After mixing (a) to (C) above the dissolved solution and heating and dissolving,
The trap was applied to a wet film thickness of 6 Cμm on a polyethylene terephthalate film with a thickness of 1lrOμ. After drying this coated sample, it was imagewise exposed to light at λ00θ lux for io seconds using a tungsten bulb. After that, heat the trap to Iro 0C and heat it evenly for 30 seconds on the trap heat block.

Next, a method for forming an image-receiving material having an image-receiving layer will be described.

Poly(acrylic methyl-N,N,N-)dimethyl-N-vinylbenzylammonium chloride) (ratio of methyl acrylate and vinylbenzylammonium cumylide is i:1)ioyyz, dissolved in 200 ml of water, 70% Mix evenly with 1 oor of lime-treated gelatin and trap.

This mixed solution was uniformly coated onto a polyethylene terephthalate film to a wet film thickness of 201ty1. After this sample is dried, it is used as an image receiving material in a trap.

Image receiving material? After soaking the trap in water, heat the trap photosensitive material mentioned above,
Overlap the trap so that the membrane surfaces are in contact. After 30 seconds, when the image-receiving material is peeled off from the photosensitive material, a negative magenta color image is obtained on the image-receiving material. The density of this negative image is measured using the Macbeth transmission density side (TIJ-to4L) y, and the density with respect to the green original is maximum λ, 301 minimum o, o
There is r"'c.

The gradation of the trap sensitometric curve is the density difference/31 in the @ line part for the exposure difference io times.

Example 2 Comparative sample Example 1 except that the following A%B21oy was used as a comparison chemical other than the present invention instead of the dye-donating substance (QO)
Perform 7 operations exactly the same as above, and create a trap by making a photosensitive play shop λ, &Jk.

Comparative Compound A Comparative Compound B A negative color image was obtained on an image-receiving material using the above sensitive material 71%A3'g and carrying out the same processing as in Example 1. The measured concentration values for each are shown in the table below.

Sample number Dye-donating substance Maximum concentration Minimum 1 degree/
Q [ll 2. Jo 0.
01 co Comparative compound A λ1.3J O,1
73// B Jinri o o, i.

From the above results, it is clear that the present compound does not cause even a small amount of AJ even at commercial concentrations.

Example 3 Using (11, (2), (3)) and Cf109 having the following structure as a comparative compound instead of yellow dye-donating enzyme (color-donating substance 00), I performed similar processing and operations and got the results shown in the table below.

Dye-donating substance A Maximum concentration Minimum concentration/
/, 30 0.10λ l ,
Ko o o, i.

3 1.10 o, 0ri'' comparison compound (/, /j O, 0, outside the present invention) It can be seen that the compound of the present invention has a low strain concentration and a relatively high maximum concentration.

Example 4 Regarding the cyan dye-donating substance: Dye-donating substance 16.17, /f As a comparative product, one having the following structure, E-1g10? Except for the use, all the treatments and operations were the same as in Example 1, and the results shown in the table below were obtained.

Comparison Compound Dye Donor Maximum Concentration Minimum Concentration 16
Ko, 10 0. /ko/7 /, F17 '0. l0it
+2. oo o, i.

For comparison (outside the present invention) D t, yz o, t da l
E Co., 10 0.20 As a result, it was found that the substance of the present invention had less cuff compared to higher concentrations.Example 5 It was dissolved in gelatin 4LOf and KBrJjrk water 300014. This bath solution was kept at 2ro 0c and stirred.

Next, a solution prepared by bathing silver nitrate in 3 uf-f water, zoo, 1 is added to the above solution over a period of 70 minutes.

Then KI! ,,! A solution of f dissolved in water lθθgo? Add for 2 minutes. The resulting silver iodobromide emulsion is then adjusted to pH 1, allowed to settle, and excess salt is removed.

Then adjust the pH to 6.0 and collect Huoott's silver iodobromide emulsion. Obtained.

Next, we will discuss how to prepare the gelatin dispersion of the dye-donating substance.

As a color patch-donating substance QHTSQf1 surfactant, Kobap
Acid-, 2-ethylhexyl ester sulfonic acid sodium o, sy, trire resin phosphate (TCP) 2
Weigh 0F, add 1 nt of vinegared rice ethyl 3θ, and make about to0
Heat and dissolve in c to make a homogeneous solution. This solution and 10% solution of lime-treated gelatin were mixed with stirring for 100 minutes, and then dispersed with a homogenizer for 10 minutes at 1% PM.

This dispersion liquid is called a dispersion of a dye-providing substance.

Next, we will discuss how to organize photosensitive coatings.

(a) Photosensitive silver iodobromide emulsion 5y (
b) Dispersion of dye-donating substance 3. ! 2(C
) Guanidine trichloride aa acetic acid 2jO #vf ethanol, dissolved in jet trap solution or more (a) ~ (C)? After mixing and heating to dissolve, the mixture was spread on a polyethylene terephthalate film having a thickness of 11θμ to a wet film thickness of 60μm. After drying this coated sample, it was imagewise exposed to light for IQ seconds at 2000 lux using a tungsten bulb. After that, heat it to 0c and heat it evenly for 30 seconds on a trap heat block.The following steps are exactly the same as in Example 1. A trap to go. Instead of using the dye-donating substance αI', αυ, α4, and for comparison, Ioy of each of the following structures were used.The procedure was exactly the same as above, except that ioy was used for each, and the results were as shown in the table below. I got it.

Comparison compound F Dye-donating substance shop Maximum concentration Minimum concentration 10
/ , 10 0 , Or/
l / , 61 0
．． 01/l /46 0,01 for comparison (
Outside the present invention>F i, bo o, t.

Q　J, /J　/,20 A preferred embodiment of Ml inclusion is as follows.

1. On the 44 supports, a heat-developable color photosensitive layer containing a photosensitive halogenated resin, a Nanki Ginba oxide, a hydrophilic binder, a color represented by formula (1), and a chlorine-donating shellfish.
An image-receiving material (A) having a dye r mordant released in
Is this a color image after transferring? Image forming method 2 with tqt characteristics: If necessary, a reducing agent for the organic silver salt oxidizing agent is included? Features a patented ultra-wide range of diffusion transfer heat developable color materials.

3. In the first step above, the dye release aid is added to the heat developing power 2.
- An image forming method characterized by incorporating the image into a photosensitive material.

4. An image forming method, characterized in that in item C1, a dye release aid is contained in the image receiving material f1.

5. Photosensitive silver halide, organic silver salt oxidizing agent on the support,
In a heat-developable color photosensitive material containing the dye-donating substance gold represented by the hydrophilic binder formula (I), the dye-releasing aid r is applied to the dye-releasing aid r to release the diffusible dye. , transferred to an image-receiving material with a mordant to obtain color I
f! An image forming method characterized by forming a TL image.

6. %Jf In the claims, Embodiment 7 in which Ca is a hydroxyl group In the patent d-claimed scope, M4 embodiment a in which H is a dodecyl, butravylhexadecyl or octadecyl group In the claims, Ca11 moiety is a hydrophilic 1. A heat-developable color photosensitive material in the special ThF s# water range, characterized by being azo, azomethine, anthraquinone, naphthoquinone, styryl, nido-al quinoline, carbonyl, and phthalocyanine color water.

Higashi A heat-developable color photosensitive material characterized in that the dye-releasing auxiliary agent described in item 3, g, and 5 above is a base, a base-releasing agent, or a water-releasing compound.

A heat-developable color photosensitive material, wherein the organic silver salt oxidizing agent as claimed in the claims is a silver salt of a carboxylic acid fatty complex or a nitrogen-containing complex compound.

1. A heat-developable color photosensitive material characterized in that a parent wide range inder having a ptfipt IL range is gelatin or a gelatin derivative.

Diffusible dye released in 1zth iH? , applying water or a basic water bath to an image-receiving material.

A heat-developable black photosensitive material characterized in that it is an organic silver salt oxidizing agent according to item 13L or a silver salt of a nitrogen-containing chemical compound.

Patent applicant Fuji Photo Film Co., Ltd. Procedural Amendment Showa! 1977 Metsu〃1'' 1.Display of the incident 1981 Notehead No. 17//9
≠ No. 2, Title of the invention: Heat-developable color photosensitive material 3, Relationship with the person making the amendment Patent applicant Address: 210 Nakanuma, Minamiashigara City, Kanagawa Prefecture Name (520) Fujigo Minoh Film Co., Ltd. 4: Subject of amendment Details book [invention (
') Column 5 of "Details of the Invention", Contents of Amendment Fp' The description of the "Detailed Description of the Invention" section of JigB Cao is supplemented as follows.

l) Compensate "transfer transfer" on page j, line 13 with "thermal transfer".

e) Correct "auxiliary development system" on the 7th page line to "auxiliary development system".

3) Correct the line ``metal lead salt'' on page ♂/4 to ``metal complex salt.''

Hiroshi) t) Insert 1,'' in front of ``1 hexatecyl'' on page 41, line O.

j) In front of "Organic silver salts in item 1 of the first row of the first page" [l
OJ? insert.

Claims (1)

[Claims] /l A heat-developable color containing g-photosensitive silver halide, an organic silver salt oxidizing agent, a hydrophilic binder, and a dye-donating substance represented by the following general formula il+ 7'L on a support. Feeling π゛lady fee. ClIC[I3