US3801321A - Photothermographic element,composition and process - Google Patents

Photothermographic element,composition and process Download PDF

Info

Publication number
US3801321A
US3801321A US00272832A US3801321DA US3801321A US 3801321 A US3801321 A US 3801321A US 00272832 A US00272832 A US 00272832A US 3801321D A US3801321D A US 3801321DA US 3801321 A US3801321 A US 3801321A
Authority
US
United States
Prior art keywords
photothermographic
reducing agent
sulfonamidophenol
image
photothermographic element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00272832A
Other languages
English (en)
Inventor
F Evans
Laen D Mc
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of US3801321A publication Critical patent/US3801321A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/494—Silver salt compositions other than silver halide emulsions; Photothermographic systems ; Thermographic systems using noble metal compounds
    • G03C1/498—Photothermographic systems, e.g. dry silver
    • G03C1/49827—Reducing agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/166—Toner containing

Definitions

  • ABSTRACT A sulfonamidophenol reducing agent in photothermographic elements, compositions and processes provides improved processing temperature latitude. Certain of the sulfonamidophenol reducing photothermographic can be employed in photobermographic materials in the absence of activator toning agents.
  • the photothermographic materials can contain addenda commonly employed in photothermographic materials such as sensitizing dyes, image stabilizers and stabilizer precursors, and various photosensitive compounds.
  • This invention relates to certain reducing agents in photothermographic elements, compositions and processes to provide improved processing temperature latitude with improved neutral developed images. In one of its aspects it relates to photothermographic elements containing such reducing agents. In another of its aspects it relates to a photothermographic composition containing the described reducing agents. A further aspect relates to a method of developinga latent image in the described photothermographic elements by overall heating.
  • Phenolic reducing agents have been used in photographic materials for various purposes. Sulfonamidophenols, for example, have been used for different purposes in photographic materials such as described in Canadian Pat. No. 815,526 issued June 17, 1969; co-
  • SUMMARY OF THE INVENTION agents enable the omission of a so-called activator toning agent from the described photothermographic material.
  • a range of sulfonamidophenol reducing agents is useful in photothermographic elements and compositions according to the invention.
  • a sulfonamidophenol reducing agent is useful which can-be used in combination with a heavy metal salt oxidizing agent to provide an oxidation-reduction image-forming combination and which provides improved processing temperature latitude and improved image discrimination.
  • One test which can be used in determination of suitable sulfonamidophenol reducing agents is set out in following Example 1.
  • Another test which can be used is set out in following Examples 29-33 wherein succinimide is used as an activator toning agent in place of phthalazinone.
  • sulfonamidophenol reducing agent as employed herein includes sulfonamidonaphthol reducing agents and sulfonamidophenol reducing agents. Choice of an optimum sulfonamidophenol reducing agent will depend upon the particular photothermographic composition,
  • sulfonamidophenol reducing agents useful according to the invention can be prepared employing known procedures in the art and include such compounds as described in Canadian Pat. No. 815,526 of Bard, issued June 17, 1969.
  • a useful class of sulfonamidophenol reducing agents according to the invention which ineludes sulfonamidophenols and sulfonamidonaphthols is represented by the structure:
  • R and R are each selected from the group consisting of hydrogen; chlorine; bromine; iodine; alkyl containing one to four carbon atoms, such as methyl, ethyl, propyl and butyl; aryl containing six to 12 carbon atoms such as phenyl and tolyl; arylsulfonyl containing six to 12 carbon atoms, such as phenylsulfonyl; amino; hydroxy; alkoxy containing one to four carbon atoms, such as methoxy and ethoxy; and atoms completing with R or R a naphthalene nucleus;
  • Z and Z are each selected from the group consisting of hydrogen; bromine; chlorine; alkyl containing one to four carbon atoms, as described; aryl containing six to 10 carbon atoms, such as phenyl and tolyl; arylsulfonyl containing six to 12 carbon atoms, as described; amino; hydroxy; alkoxy containing one to four carbon atoms, such as methoxy and ethoxy; and R SO NH- wherein R is alkyl containing one to four carbon atoms, such as methyl, ethyl, propyl and butyl, aryl containing 6 to 10 carbon atoms, such as phenyl and tolyl and hetero ring substituents, such as thienyl, quinolinyl and thiazyl,
  • R is p-hydroxyphenyl, p-hydroxy-3,5- dichlorophenyl or p-hydroxy-3,5-dibromophenyl;
  • Z is hydrogen, alkyl containing one to four carbon atoms, such as methyl, ethyl, propyl and butyl, chlorine, bromine or RSO NH when R and R are atoms completing a naphthalene nucleus;
  • Z is hydrogen, alkyl containing one to four carbon atoms such as methyl, ethyl, propyl or butyl, chlo rine and bromine when R and R are other than atoms completing a naphthalene nucleus; at least one of Z.
  • Z and Z is RSO,NH.
  • the described groups such as alkyl, alkoxy and aryl include such groups containing substituents which do not adversely affect the reducing properties and desired sensitometric properties of the described photothermographic elements and compositions.
  • substituent groups which can be present are alkyl containing one to three carbon atoms such as methyl, ethyl, and propyl, chlorine, bromine and phenyl. In some cases it is desirable to avoid an amino group as a substituent. The amino group, in some cases, provides an overly active reducing agent.
  • One especially useful class of sulfonamidophenol reducing agents within the described structure are compounds of the formula:
  • R is phenyl, naphthyl, methylphenyl, thienyl, quinolinyl, thiazyl, or alkyl containing one to four carbon atoms, as described;
  • R is hydrogen, R SO NH, alkoxy containing one to four carbon atoms, hydroxy, alkyl containing one to four carbon atoms, bromine or chlorine;
  • R is hydrogen, bromine, chlorine, alkyl containing one to four carbon atoms, such as methyl, ethyl, propyl or butyl, or alkoxy containing one to four carbon atoms, such as methoxy, ethoxy and propoxy.
  • R R and/or R can contain substituent groups which do not adversely affect the reducing properties of the described sulfonamidophenol reducing agents or the desired sensitometric properties of the photothermographic elements and materials of the invention. These substituent groups are the same as described for generic structure 1.
  • sulfonamidophenol reducing agents which are useful in photothermographic elements and compositions of the invention are sulfonamidonaphthols of the formula:
  • the sulfonamidophenol group in the described sulfonamidonaphthols can be in the ortho, meta or para position.
  • the sulfonamidonaphthols and sulfonamidophenols which contain three sulfonamidophenol groups are more active compounds within the sulfonamidophenol reducing agent class. These sulfonamidophenols are employed for shorter developing times or with heavy metal salt oxidizing agents which are less active than silver behenate.
  • image discrimination provided by photothermographic materials containing the sulfonamidonaphthols and trifunctional sulfonamidophenols is less than that provided by other of the described sulfonamidophenols.
  • Combinations of sulfonamidophenol reducing agents can be employed in photothermographic materials and elements according to the invention.
  • Examples of useful sulfonamidophenol reducing agents in photothermographic materials and elements according to the invention are listed in the following examples.
  • Especially useful sulfonamidophenol reducing agents include benzenesulfonamidophenol reducing agents, such as 2,6-dichloro-4- benzenesulfonamidophenol and/or 4- benzenesulfonamidophenol.
  • One embodiment of the invention is in a photothermographic element comprising a support having 1 heavy metal salt oxidizing agent with a reducing agent;
  • the described photothermographic element comprises a photosensitive component which is typically a photosensitive salt, such as a photosensitive silver salt. It is believed that the photosensitive component acts as a catalyst for the described oxidation-reduction imageforming combination.
  • a typical concentration range of photosensitive component, especially photosensitive silver salt is from about 0.01 to about moles of photosensitive component per mole of heavy metal salt oxidizing agent, for example, per mole of silver salt of organic acid.
  • An especially useful photosensitive component is photosensitive silver halide.
  • Useful photosensitive silver salts include silver dye complexes and combinations of photosensitive silver halide with other photosensitive silver salts.
  • Preferred photosensitive silver halides are silver chloride, silver bromide, silver bromoiodide, silver chlorobromoiodide or mixtures thereof.
  • the photosensitive silver halide can be coarse or fine grain, very fine grain photosensitive silver halide being especially useful.
  • the photosensitive silver halide can be prepared by any of the procedures known in the photographic art. Such procedures and forms of photosensitive silver halide are described, for example, in the Product Licensing Index, Volume 92, December, 1971, publication 9232, pages 107-1 10, paragraph I.
  • the photosensitive silver halide employed according to the invention can be unwashed or washed, can be chemically sensitized, can be protected against the production of fog and/or stabilized against loss of sensitivity during keeping, as described in the above Product Licensing lndex reference.
  • the photothermographic elements and/or compositions according to the invention comprise an oxidationreduction image-forming combination which contains an oxidizing agent, preferably a heavy metal salt oxidizing agent.
  • the heavy metal salt oxidizing agent can be a heavy metal salt of an organic acid such as a fatty acid which is resistant to darkening upon illumination.
  • An especially useful class of heavy metal salts of organic acids is represented by the water insoluble silver salts of long-chain fatty acids which are stable to light.
  • Compounds which are suitable silver salt oxidizing agents include silver behenate, silver stearate, silver oleate, silverlaurate, silver hydroxystearate, silver caprate, silver myristate and silver palmitate.
  • Silver salts can be employed as the heavy metal salt oxidizing agent which are not silver salts of long-chain fatty acids.
  • Such silver salt oxidizing agents which are useful include, for example, silver benzoate, silver benzotriazole, silver terephthalate, silver phthalate and the like. In most cases, however, only the more reactive sulfonamidophenol reducing agents are useful with a silver benzotriazole as the heavy metal salt oxidizing agent.
  • the described sulfonamidophenol reducing agents can be employed in combination with other reducing agents in the described oxidation-reduction imageforming combination.
  • Suitable reducing agents which can be employed in combination with the sulfonamidophenol reducing agents include substituted phenols and naphthols, for example, bis-B-naphthols.
  • Suitable bis-B- naphthols include, for example, 2,2'-dihydroxy-l,1- binaphthyl, 6,6-dibromo-2,2'-dihydroxy-1 ,1
  • reducing agents which can be employed in photothermographic elements according tothe invention include polyhydroxybenzenes such as hydroquinone, alkylsubstituted hydroquinones such as tertiary butyl hydroquinone, methyl hydroquinone, 2,5-dimethyl hydroquinone and 2,6-dimethyl hydroquinone; catechols and pyrogallols, chloro-substituted hydroquinones such as chloro hydroquinone or dichloro hydroquinone; alkoxy I substituted hydroquinone such as methoxy hydroquinone or ethoxy hydroquinone; aminophenol developing agents, such as 2,4-diaminophenols and methylaminophenols; ascorbic acid developing agents such as ascorbic acid, ascorbic acid, ascorbic acid, ascor
  • activator toning agent also known as an accelerator-toning agent
  • the activator toning agent is typically useful in a range of concentration, such as a concentration of about 0.10 moles to about 1.1 moles of activator toning agent per mole of oxidizing agent in the photothermographic element.
  • a typical suitable activator toning agent is a heterocyclic activator toning agent containing at least one nitrogen atom as described in Belgian Pat. No. 766,590 issued June 15, 1971.
  • Typical activator toning agents include, for example, phthalimide, N- hydroxyphthalimide, N-hydroxy-l,S-naphthalimide, N-potassium phthalimide, N-mercury phthalimide, succinimide and/or N-hydroxysuccinimide.
  • Other activator toning agents which can be employed include phthalazinone, 2-acetylphthalazinone and the like.
  • Typical image stabilizers or stabilizer precursors are described, for example, in Belgian Pat. No. 768,071 issued July 30, 1971.
  • Typical stabilizer precursors include, for example, azothioethers and blocked azoline thione stabilizer precursors as described in this Belgian Patent.
  • a photothermographic element, as described according to the invention can contain various compounds alone or in combination as vehicles, binding agents and in various layers.
  • Suitable materials can be hydrophobic or hydrophilic. They are transparent or translucent and include both naturally-occurring substances such as proteins, for example, gelatin, gelatin derivatives, cellulose derivatives, polysaccharides such as dextran, gum arabic and the like; and synthetic polymeric substances such as water soluble polyvinyl compounds like poly(vinyl pyrrolidone), acrylamide polymers and the like.
  • Other synthetic polymeric compounds which can be employed include dispersed vinyl compounds such as in latex form and particularly those which increase dimensional stability of photographic materials.
  • Effective polymers include water-insoluble polymers of alkyl acrylates and methacrylates, acrylic acid, sulfoalkyl acrylates, methacrylates and those which have crosslinking sites which facilitate hardening or curing as well as those having recurring sulfobetaine units as described in Canadian Patent 774,054.
  • Especially useful high molecular weight materials and resins include poly(vinyl butyral), cellulose acetate butyrate, polymethyl methacrylate, poly(vinyl pyrrolidone), ethylcellulose, polystyrene, polyvinyl chloride, chlorinated rubber, polyisobutylene, butadiene-styrene copolymers, vinyl chloride-vinyl acetate copolymers, copolymers of vinyl acetate, vinyl chloride and maleic acid and polyvinyl alcohol.
  • the photosensitive silver halide employed in the described photothermographic elements can be prepared in situ such as described in U.S. Pat. No. 3,457,075 of Morgan et al. issued July 22, 1969.
  • An especially useful photothermographic element comprises a support having thereon (a) photosensitive silver halide, (b) an oxidation-reduction image-forming combination comprising (i) silver behenate and/or silver stearate, with (ii) 2,6-dichloro-4-benzenesulfonamidophenol and/or 4-benzenesulfonamidophenol, (c) succinimide and/or N-hydroxy-l ,8-naphthalimide, and (d) a polymeric binder, such as poly(vinyl butyral).
  • a concentration range of reducing agent can be employed in the described photothermographic element and/or composition of the invention.
  • a useful concentration of reducing agent is typically from about 0.25 mole to about 4 moles of sulfonamidophenol reducing agent per mole of photosensitive component, such as silver halide in the photothennographic element and/or composition.
  • a useful concentration of reducing agent is typically from about 0.10 mole to about 20.0 moles of reducing agent per mole of oxidizing agent, such as silver behenate or silver stearate. If other reducing agents are employed in combination with the described sulfonamidophenol reducing agent, the total concentration of reducing agent is typically within the described concentration range for sulfonamidophenol.
  • Photothermographic elements according to the invention can contain development modifiers that function as speed-increasing compounds, hardeners, antistatic layers, plasticizers and lubricants, coating aids, brighteners, spectral sensitizing dyes, absorbing and filter dyes, also as described in the Product Licensing 1ndex, Volume 92, December 1971, publication 9232, pages 107-1 10, paragraph I.
  • the photothermographic elements according to the invention can comprise a wide variety of supports.
  • Typical supports include cellulose nitrate film, cellulose ester film, poly(vinyl acetal) film, polystyrene film, poly(ethylene terephthalate) film, polycarbonate film and related films or resinous materials, as well as glass, paper, metal and the like supports which can withstand the processing temperatures employed according to the invention.
  • a flexible support is employed.
  • a photothermographic composition comprising (a) a photosensitive component, typically a photosensitive silver salt such as photosensitive silver halide, with (b) an oxidation-reduction image-forming combination comprising (i) a heavy metal salt oxidizing agent with (ii) a sulfonamidophenol reducing agent, as described, and
  • a photothermographic composition comprises (a) photosensitive silver halide, (b) an oxidation-reduction image-forming combination comprising (1') silver behenate or silver stearate, with (ii) a sulfonamidophenol reducing agent,
  • an activator-toning agent which is phthalazinone, phthalimide, succinimide, and/or N-hydroxy-l,8-naphthalimide
  • a polymeric binder such as poly(vinyl butyral).
  • the photothermographic compositions and other compositions according to the invention can be coated on a suitable support by various coating procedures including dip coating, air knife coating, curtain coating or extrusion coating using hoppers such as described in U.S. Pat. No. 2,681,294 of Beguin issued June 15, 1954. If desired, two or more layers can be coated simultaneously such as described in US. Pat. No. 2,761,791 of Russell issued Sept. 4, 1956 and British Pat. No. 837,095.
  • Spectral sensitizing dyes can be used in the described photothermographic elements and compositions of the invention to confer additional sensitivity to the elements and compositions of the invention.
  • Useful sensitizing dyes are described, for example, in the Product Licensing Index, Volume 92, December 1971, publication 9232, pages 107-110, paragraph XV.
  • the resulting latent image can be developed merely by overall heating the element to moderately elevated temperatures. This merely involves heating the described photothermographic element overall from about C. to about 250C. such as for about 0.5 seconds to about 60 seconds. By increasing or decreasing the length of time of heating, a higher or lower temperature within the described range can be employed depending upon the desired image.
  • a developed image is typically produced within several seconds, such as about 0.5 seconds to about 60 seconds.
  • a processing temperature of about 110C. to about C. is especially useful.
  • the heating means can be a simple hot plate, iron, roller or the like.
  • Processing is usually carried out under ambient conditions of pressure and humidity. Conditions outside normal atmospheric pressure and humidity can be employed, if desired.
  • one or more components of the photothermographic element can be in one or more layers of the element.
  • EXAMPLE 1 poly(vinyl butyral) behenic acid silver behenate sodium bromide l-(2H)phthslazinone acetone-toluene (1:1 parts by volume)
  • the resulting dispersion in the absence of a reducing I Time agent, is coated on a polyethylene coated paper sup- Example 'mW/FQB port at 0.6 millimoles of silver per square foot.
  • a 0.02 3 I molar solution of 4-(N-Methylsulfonamido)phenol in 5 4 2 acetone-alcohol is coated onto the resulting element at RHmasomH 4 6 milligrams per square decimeter.
  • latent image is developed by overall heating the photothermographic element by contacting it with a heated metal block at 115C. or 150C. for the time specified in following Table IV.
  • Example 18 The procedure set out in Example 18 is repeated with the exception that methylene-2,2'-bis(4-methyl-6-tertiary-butylphenol) is employed in place of the described reducing agent.
  • the results produced after sensitometric exposure and overall heating at 150C. are set out in the following Table 111.
  • EXAMPLES 29-37 The procedure set out in Example 1 repeated with With Phthalazinone Example Time: Time No. (seconds) lmage Hue (seconds) Image 24 1 1 Tan 5 +1-1- Hue Dark Brown EXAMPLES 25-28
  • Ten cc of a 2.5% by weight poly(viny1 butyral) so1ution in acetone/toluene containing 0.4 millimoles of the reducing agent designated in Table IV and 0.08 to 0.14 millimoles of l-(2l-l)-phthalazinone is overcoated onto a photosensitive element containing behenic acid, si1-. ver behenate and silver bromide in a poly(vinyl butyral) binder.
  • This photosensitive element is prepared by mixing the noted components and coating the resulting composition onto a film support at 0.60 millimoles of silver per square foot.
  • the resulting photothermo graphic element is sensitometrically exposed to tung sten light through a high contrast image.
  • phthalazinone is replaced with an equal molar concentration of succinimide and a concentration of one mole of the sulfonamidophenol reducing agent described in following Table V is employed for each 2 moles of silver behenate present in the photothermographic element.
  • the photothermographic element is sensitometrically exposed to tungsten light and then overall heated at the temperatures and times described in following Table V.
  • the resulting composition is coated and permitted to dry on a paper support at 8.61 mg. of silver per square decimeter to provide a photothermographic element.
  • This photothermographic element is exposed sensitometrically to tungsten light for 0.5 seconds and then heated overall by contacting the element with a heated metal block for 2 seconds at 140C.
  • a developed image results.
  • the element is then held in fluorescent room: light under ambient conditions for 48 hours.
  • the resulting image is black with a beige background.
  • the overcoat can comprise polymeric materials which can protect the photothermographic element against undesired fingerprint marks and abrasion.
  • One overcoat which is suitable comprises a combination of gelatin with a polyhydric alcohol plasticizer, such as 3-methyl-2,4-j pentanediol and/or glycerin, or a polymeric latex com-f prising at least one 2-acetoacetoxyethyl methacrylate group, such as described in US. Pat. No. 2,960,404 of Milton et a1. and/or US. Pat. No. 3,488,704 of Smith.
  • a photothermographic element as in claim 1 wherein said sulfonamidophenol reducing agent is a compound, selected from the group represented by the formula:
  • R and R are each selected from the group consisting of hydrogen, chlorine, bromine, alkyl containing one to four carbon atoms, aryl containing six to 12 carbon atoms, amino, hydroxy, alkoxy containing one to four carbon atoms, and atoms completing with R or R a naphthalene nucleus;
  • Z and Z are each selected from the group consisting of hydrogen, bromine, chlorine, alkyl containing one to four carbon atoms, aryl containing six to 10 carbon atoms, arylsulfonyl containing six to 12 carbon atoms, amino, hydroxy, alkoxy containing one to four carbon atoms, and R SO NH wherein R is alkyl containing one to four carbon atoms, aryl containing six to 10 carbon atoms, thienyl, quinolinyl, thiazyl,
  • R is p-hydroxyphenyl, p-hydroxy-3,S-dichlorophenyl or p-hydroxy-3,S-dibromophenyl;
  • Z is hydrogen, alkyl containing one to four carbon atoms, chlorine, bromine or RSO NH when R and R are atoms completing a naphthalene nucleus;
  • Z is hydrogen, alkyl containing one to four carbon atoms, chlorine or bromine when R and R are other than atoms completing a naphthalene nucleus;
  • At least one of Z, Z and Z is RSO NH.
  • a photothermographic element as in claim 1 wherein said sulfonamidophenol reducing agent is a compound of the formula:
  • R is phenyl, naphthyl, methylphenylthienyl, quinolinyl, thiazyl, or alkyl containing one to four carbon atoms;
  • R is hydrogen, -NHSO R alkoxy containing one to four carbon atoms, hydroxy, alkyl containing one to four carbon atoms, bromine or chlorine;
  • R" is hydrogen, bromine, chlorine, alkyl containing one to four carbon atoms or alkoxy containing one to four carbon atoms.
  • a photothermographic element as in claim 1 wherein said sulfonamidophenol is a compound of the formula:
  • a photothermographic element as in claim 1 wherein said sulfonamidophenol reducing agent is 2,6- dichloro-4-benzene-sulfonamidophenol.
  • a photothermographic element as in claim 1 wherein said sulfonamidophenol reducing agent is 4- benzenesulfonamidophenol.
  • a photothermographic element as in claim 1 also comprising an activator-toning agent which is phthalazinone, phthalimide, succinimide or N-hydroxy- 1,8-naphthalimide.
  • a photothermographic element comprising a support having thereon a. photosensitive silver halide
  • an oxidation-reduction image-forming combination comprising i. silver behenate, with ii. 2,6-dichloro-4-benzenesulfonamidophenol or 4-benzenesulfonamidophenol,
  • a photothermographic element as in claim 1 comprising about 0.25 to about 4.0 moles of said sulfonamidophenol reducing agent per mole of said photosensitive component.
  • a photothen'nographic composition comprising a. a photosensitive component, with b. an oxidation-reduction image-forming combination comprising i. a heavy metal salt oxidizing agent with ii. a sulfonamidophenol reducing agent, and
  • a photothermographic composition as in claim 11 comprising about 0.4 to about 2.0 moles of said sulfonamidophenol reducing agent per mole of said photosensitive component.
  • a photothermographic composition as in claim 11 also comprising an activator-toning agent which is phthalazinone, phthalimide, succinimide or N-hydroxy- 1,8-naphthalimide.
  • a photothermographic composition comprising a. photosensitive silver halide, b. an oxidation-reduction image-forming combination comprising i. silver behenate, with ii. 2,6-dichloro-4-benzenesulfonamidophenol or 4-benzenesulfonamidophenol, c. an activator-toning agent which is phthalazinone,
  • a photothermographic composition comprising a. photosensitive silver halide, b. an oxidation-reduction image-forming combination i. silver behenate, with ii. a reducing agent represented by the formula:
  • a process of developing a latent image in an exposed photothermographic element comprising a support having thereon a photosensitive component, an oxidation-reduction image-forming combination comprising a heavy metal salt oxidizing agent with a sulfonamidophenol reducing agent and a polymeric binder, comprising heating said element from about 80C. to about 250C.
  • a process of developing a latent image in a photothermographic element comprising a support having thereon a. photosensitve silver halide,
  • an oxidation-reduction image-forming combination comprising i. silver behenate, with ii. 2,6-dichloro-4-benzenesulfonamidophenol or 4-benzenesulfonamidophenol,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
US00272832A 1972-07-18 1972-07-18 Photothermographic element,composition and process Expired - Lifetime US3801321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27283272A 1972-07-18 1972-07-18

Publications (1)

Publication Number Publication Date
US3801321A true US3801321A (en) 1974-04-02

Family

ID=23041498

Family Applications (1)

Application Number Title Priority Date Filing Date
US00272832A Expired - Lifetime US3801321A (en) 1972-07-18 1972-07-18 Photothermographic element,composition and process

Country Status (9)

Country Link
US (1) US3801321A (enrdf_load_stackoverflow)
JP (1) JPS539735B2 (enrdf_load_stackoverflow)
AR (1) AR199785A1 (enrdf_load_stackoverflow)
AU (1) AU475715B2 (enrdf_load_stackoverflow)
BE (1) BE802519A (enrdf_load_stackoverflow)
CA (1) CA1006737A (enrdf_load_stackoverflow)
DE (1) DE2336395A1 (enrdf_load_stackoverflow)
FR (1) FR2193216B1 (enrdf_load_stackoverflow)
GB (1) GB1433055A (enrdf_load_stackoverflow)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021240A (en) * 1975-12-22 1977-05-03 Eastman Kodak Company Photothermographic and thermographic compositions and uses therefor containing sulfonamidophenol reducing agents and four equivalent color couplers
US4022617A (en) * 1974-07-25 1977-05-10 Eastman Kodak Company Photothermographic element, composition and process for producing a color image from leuco dye
US4081278A (en) * 1977-05-23 1978-03-28 Eastman Kodak Company Heat sensitive dye layers comprising a benzopinacol
US4207108A (en) * 1976-11-04 1980-06-10 Eastman Kodak Company Silver halide photothermographic element, composition and process
US4235957A (en) * 1979-01-25 1980-11-25 Eastman Kodak Company Thermal silver-dye bleach element and process
US4245033A (en) * 1974-12-28 1981-01-13 Canon Kabushiki Kaisha Heat developable photosensitive composition and a heat developable photosensitive member having a layer comprising the composition
US4264725A (en) * 1978-10-19 1981-04-28 Eastman Kodak Company Photothermographic composition and process
US4283477A (en) * 1978-11-02 1981-08-11 Eastman Kodak Company Photothermographic material and process
US4307187A (en) * 1974-12-28 1981-12-22 Fuji Photo Film Co., Ltd. Thermally developable light-sensitive materials
US4411985A (en) * 1981-09-17 1983-10-25 Eastman Kodak Company Heat stabilizable photographic silver halide material and process
US4886739A (en) * 1988-08-10 1989-12-12 Eastman Kodak Company Thermally processable imaging element and process
US4942115A (en) * 1989-04-24 1990-07-17 Eastman Kodak Company Thermally processable imaging element comprising an overcoat layer
US5258282A (en) * 1990-11-19 1993-11-02 Canon Kabushiki Kaisha Dry process, silver salt photosensitive member and method for forming image with the dry process, silver salt photosensitive member
US5409798A (en) * 1991-08-30 1995-04-25 Canon Kabushiki Kaisha Plate blank, process for producing printing plate from plate blank, and printing method and apparatus using plate
US5599648A (en) * 1990-08-03 1997-02-04 Canon Kabushiki Kaisha Surface reforming method, process for production of printing plate, printing plate and printing process
US5716772A (en) * 1995-09-22 1998-02-10 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5783380A (en) * 1996-09-24 1998-07-21 Eastman Kodak Company Thermally processable imaging element
EP0851283A3 (en) * 1996-12-26 1999-03-10 Fuji Photo Film Co., Ltd. Silver halide photographic lightsensitive material
US6037115A (en) * 1996-05-22 2000-03-14 Eastman Kodak Company Photothermographic and thermographic films containing low levels of formate to prevent fog
US6040130A (en) * 1997-02-10 2000-03-21 Eastman Kodak Company Photothermographic and thermographic films containing low levels of unsaturated fatty acid to prevent fog
US6140037A (en) * 1996-04-26 2000-10-31 Fuji Photo Film Co., Ltd. Photothermographic material and method for making
US6228571B1 (en) * 1996-06-18 2001-05-08 Fuji Photo Film Co., Ltd. Photothermographic material
US6419987B1 (en) * 1999-12-17 2002-07-16 Eastman Kodak Company Method for providing a high viscosity coating on a moving web and articles made thereby
EP1243583A4 (en) * 1999-12-28 2003-08-20 Eisai Co Ltd HETEROCYCLIC COMPOUNDS WITH SULFONAMIDE GROUPS
US20030194659A1 (en) * 2001-09-12 2003-10-16 Fuji Photo Film Co., Ltd. Heat-developable photosensitive material and heat-developing method using the same
US20060088785A1 (en) * 2004-10-22 2006-04-27 Konica Minolta Medical & Graphic, Inc. Silver salt photothermographic dry imaging material, thermal development method of the same, and thermal development apparatus for the same

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151933A (ja) * 1974-11-01 1976-05-07 Fuji Photo Film Co Ltd Netsugenzokankozairyo
JPS5858543A (ja) * 1981-10-02 1983-04-07 Fuji Photo Film Co Ltd 熱現像カラ−感光材料およびそれを用いたカラ−画像形成方法
JPS5965839A (ja) * 1982-10-08 1984-04-14 Fuji Photo Film Co Ltd 熱現像カラ−感光材料
JPS59109897U (ja) * 1983-01-10 1984-07-24 積水樹脂株式会社 門扉
DE3482606D1 (de) 1983-11-25 1990-08-02 Fuji Photo Film Co Ltd Waermeentwickelbares lichtempfindliches material.
GB2156091B (en) * 1984-03-21 1987-10-14 Konishiroku Photo Ind Heat developable photosensitive material
JPS61250636A (ja) 1985-04-30 1986-11-07 Fuji Photo Film Co Ltd 熱現像感光材料
JPH083621B2 (ja) 1985-07-31 1996-01-17 富士写真フイルム株式会社 画像形成方法
DE4037174A1 (de) * 1990-11-22 1992-05-27 Boehringer Mannheim Gmbh Neue sulfonamide, verfahren zu ihrer herstellung und arzneimittel, die diese verbindungen enthalten
US5756269A (en) * 1995-08-22 1998-05-26 Fuji Photo Film Co., Ltd. Method of forming images
EP0800114B1 (en) * 1996-03-11 2003-11-05 Fuji Photo Film Co., Ltd. Image forming method and system

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022617A (en) * 1974-07-25 1977-05-10 Eastman Kodak Company Photothermographic element, composition and process for producing a color image from leuco dye
US4307187A (en) * 1974-12-28 1981-12-22 Fuji Photo Film Co., Ltd. Thermally developable light-sensitive materials
US4245033A (en) * 1974-12-28 1981-01-13 Canon Kabushiki Kaisha Heat developable photosensitive composition and a heat developable photosensitive member having a layer comprising the composition
US4021240A (en) * 1975-12-22 1977-05-03 Eastman Kodak Company Photothermographic and thermographic compositions and uses therefor containing sulfonamidophenol reducing agents and four equivalent color couplers
US4207108A (en) * 1976-11-04 1980-06-10 Eastman Kodak Company Silver halide photothermographic element, composition and process
US4081278A (en) * 1977-05-23 1978-03-28 Eastman Kodak Company Heat sensitive dye layers comprising a benzopinacol
US4264725A (en) * 1978-10-19 1981-04-28 Eastman Kodak Company Photothermographic composition and process
US4283477A (en) * 1978-11-02 1981-08-11 Eastman Kodak Company Photothermographic material and process
US4235957A (en) * 1979-01-25 1980-11-25 Eastman Kodak Company Thermal silver-dye bleach element and process
US4411985A (en) * 1981-09-17 1983-10-25 Eastman Kodak Company Heat stabilizable photographic silver halide material and process
US4886739A (en) * 1988-08-10 1989-12-12 Eastman Kodak Company Thermally processable imaging element and process
US4942115A (en) * 1989-04-24 1990-07-17 Eastman Kodak Company Thermally processable imaging element comprising an overcoat layer
US5599648A (en) * 1990-08-03 1997-02-04 Canon Kabushiki Kaisha Surface reforming method, process for production of printing plate, printing plate and printing process
US5258282A (en) * 1990-11-19 1993-11-02 Canon Kabushiki Kaisha Dry process, silver salt photosensitive member and method for forming image with the dry process, silver salt photosensitive member
US5409798A (en) * 1991-08-30 1995-04-25 Canon Kabushiki Kaisha Plate blank, process for producing printing plate from plate blank, and printing method and apparatus using plate
US5716772A (en) * 1995-09-22 1998-02-10 Fuji Photo Film Co., Ltd. Silver halide photographic material
US6528244B1 (en) * 1996-04-26 2003-03-04 Fuji Photo Film Co., Ltd. Photothermographic material and method for making
US6140037A (en) * 1996-04-26 2000-10-31 Fuji Photo Film Co., Ltd. Photothermographic material and method for making
US6037115A (en) * 1996-05-22 2000-03-14 Eastman Kodak Company Photothermographic and thermographic films containing low levels of formate to prevent fog
US6228571B1 (en) * 1996-06-18 2001-05-08 Fuji Photo Film Co., Ltd. Photothermographic material
US5783380A (en) * 1996-09-24 1998-07-21 Eastman Kodak Company Thermally processable imaging element
US6004736A (en) * 1996-12-26 1999-12-21 Fuji Photo Film Co., Ltd. Silver halide photographic light-sensitive material
EP0851283A3 (en) * 1996-12-26 1999-03-10 Fuji Photo Film Co., Ltd. Silver halide photographic lightsensitive material
US6040130A (en) * 1997-02-10 2000-03-21 Eastman Kodak Company Photothermographic and thermographic films containing low levels of unsaturated fatty acid to prevent fog
US6419987B1 (en) * 1999-12-17 2002-07-16 Eastman Kodak Company Method for providing a high viscosity coating on a moving web and articles made thereby
EP1243583A4 (en) * 1999-12-28 2003-08-20 Eisai Co Ltd HETEROCYCLIC COMPOUNDS WITH SULFONAMIDE GROUPS
US6787534B2 (en) 1999-12-28 2004-09-07 Eisai Co., Ltd. Sulfonamide-containing heterocyclic compounds
US20030194659A1 (en) * 2001-09-12 2003-10-16 Fuji Photo Film Co., Ltd. Heat-developable photosensitive material and heat-developing method using the same
US20060134567A1 (en) * 2001-09-12 2006-06-22 Fuji Photo Film Co., Ltd. Heat-developable photosensitive material and heat-developing method using the same
US7101658B2 (en) * 2001-09-12 2006-09-05 Fuji Photo Film Co., Ltd. Heat-developable photosensitive material and heat-developing method using the same
US20060088785A1 (en) * 2004-10-22 2006-04-27 Konica Minolta Medical & Graphic, Inc. Silver salt photothermographic dry imaging material, thermal development method of the same, and thermal development apparatus for the same
US7220536B2 (en) 2004-10-22 2007-05-22 Konica Minolta Medical & Graphic, Inc. Silver salt photothermographic dry imaging material, thermal development method of the same, and thermal development apparatus for the same

Also Published As

Publication number Publication date
AU5822173A (en) 1975-01-23
JPS539735B2 (enrdf_load_stackoverflow) 1978-04-07
GB1433055A (en) 1976-04-22
JPS4946427A (enrdf_load_stackoverflow) 1974-05-04
DE2336395A1 (de) 1974-01-31
FR2193216A1 (enrdf_load_stackoverflow) 1974-02-15
FR2193216B1 (enrdf_load_stackoverflow) 1977-05-13
CA1006737A (en) 1977-03-15
AU475715B2 (en) 1976-09-02
AR199785A1 (es) 1974-09-30
BE802519A (fr) 1974-01-18

Similar Documents

Publication Publication Date Title
US3801321A (en) Photothermographic element,composition and process
CA1045876A (en) Photothermographic element, composition and process
US3785830A (en) Photothermographic element,composition and process
CA1078656A (en) Use of 2,6-dihalo-4-substituted sulfonamidophenol reducing agents in thermographic and photothermographic compositions
US3846136A (en) Certain activator-toners in photosensitive and thermosensitive elements,compositions and processes
US4828971A (en) Thermally processable element comprising a backing layer
US4123274A (en) Heat developable imaging materials and process
US3667959A (en) Photosensitive and thermosensitive element,compositions and process
US3839041A (en) Stabilizer precursors in photothermographic elements and compositions
JP2802305B2 (ja) 熱現像性光熱写真要素およびその使用方法、並びに熱現像性感熱写真要素
US3877940A (en) Photothermographic element, composition and process
US3871887A (en) Photothermographic composition, element and process
US3672904A (en) Photothermographic elements containing bis-beta-naphthols
US3667958A (en) Photosensitive and thermosensitive elements,compositions and processes
US4021250A (en) Thermally developable photosensitive material
US4168980A (en) Heat developable photographic material and process
US3666477A (en) Element,composition and process
US3761279A (en) Photothermographic element
JPH09510022A (ja) 光熱写真要素用増感剤
US3700457A (en) Use of development inhibitor releasing compounds in photothermographic elements
US3856527A (en) Protective layer for photothermographic elements
US3751252A (en) Photothermographic element and process
US3856526A (en) Protective layer for photothermographic elements
EP0119831B1 (en) Heat bleachable dye systems
US3751249A (en) Photothermic silver halide element containing a bis-beta-naphthol reducing agent and a 1, 3-dihydroxy-benzene reducing agent