Abstract: The present invention relates to a treatment method for treating effluents from a photographic development process, particularly a redox amplification (RX) development process, which is operated at an alkaline pH and is buffered with a phosphate buffer, said treatment method being characterized by the addition to the effluents of a Group II or Group III metal cation which forms an aqueous insoluble or substantially insoluble phosphate salt, thereby to precipitate phosphate salt from the effluent, and to reduce the pH of the effluent.

Abstract: An ink jet ink comprising a carrier, a pigment and a water dispersible polyester ionomer having an absolute molecular weight from 750 to 8000 and a glass transition temperature from 10.degree. to 80.degree. C.

Abstract: Bis?2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetamide! charge-control agents are disclose. The agents have the structure: ##STR1## R and R.sup.1 are defined in the specification. The charge-control agents are useful in electrostatographic toners and developers.

Abstract: A toner composition comprising a polymeric binder and a (1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetate charge-control agent is disclosed. The agent has the general structure (I): ##STR1## R is defined in the specification.

Abstract: There is provided a toner composition, useful in electrostatographic processes, comprising a polymeric binder and a charge-control agent having the general structure: ##STR1## wherein R.sup.

Abstract: A process for controlling gloss to fused toner images, comprising the steps of:A. passing an element bearing an unfused toner image through a fusing zone, a cooling zone and a release zone; andB. bringing the element bearing the unfused toner image into pressure contact with a fusing belt, thereby fusing the toner image to the element; characterized in that the fusing belt is a metal having(i) an unmatted powder coated tetrafluoroethylene/hexafluoropropylene (FEP) copolymer to provide a fused toner image having a coating gloss of 54-64;(ii) an unmatted powder coated polytetrafluoroethylene-co-perfluoropropyl vinylether copolymer (PFA) to provide a fused toner image having a coating gloss of 11-18 and(iii) an unmatted aqueous spray coated blend of polytetrafluoroethylene (PTFE) and polytetrafluoroethylene-perfluorinated vinyl ether (PFA) to provide a fused toner image having a coating gloss of 5-12.

Abstract: A compound having the structure: ##STR1## is disclosed. R.sup.1 is defined in the specification. The compounds are charged control agents for use in electrostatographic toners and developers.

Abstract: A method of transferring a pigmented image, comprising the steps of:providing a donor element bearing an inkjet printed image containing one or more heat transferable pigments selected from the group consisting ofA. 2-(N-methylcarbamyl)-4-(4-N,N-di-ethylamino-phenylimino)-1,4-naphthoquinon e;B. 2-(N-methylcarbamyl)-4-(4-N,N-di-ethylamino-2-methylphenylimino)-1,4-napht hoquinone;C. 1-phenyl-3-N,N-dimethylamino-4-(4-N,N-diethylaminobenzylidene)-pyrazoline- 5-one;D. N-ethyl-N-benzyl-3-acetamido-4-(3-methyl-4-cyanoisothiazol-5-ylazo)-anilin e;E. N-(2-((2,6-dicyano-4-methylphenyl)azo)-5-(diethylamino)phenyl}methanesulfo namide;F. N-(2-((2,6-dicyano-4-methylphenyl)azo)-5-(dipropylamino)phenyl}methanesulf onamide; andcontacting the donor element with an image receiving element; andtransferring the heat transferable image to the image receiving element by applying heat to the donor element.

Abstract: A mixture of symmetrical and unsymmetrical nickel formazan dyes is disclosed. Optical recording elements containing the mixture are also disclosed.

Abstract: A charge generating element having an electrically conductive layer, a charge generating layer overlying the electrically conductive layer, and an overcoat overlying the charge generating layer. The overcoat includes dye and a complex of inorganic oxide polymer and a charge carrier. The overcoat has a surface resistivity of from about 1.times.10.sup.10 to about 1.times.10.sup.17 ohms/sq.

Abstract: The invention concerns a method for the treatment by electrolysis of used photographic solutions, in particular those containing developers for X-ray films, in an electrolysis cell comprising at least one platinum anode and at least one cathode. According to the invention, a current density profile is used, and the current density at the start of electrolysis does not exceed 50% of the maximum density of the electrolysis current. The invention enables the quantity of foam formed during electrolysis to be reduced.

Abstract: Carrier particles for use in negative electrostatographic developers wherein said particles bear, based on the weight of the carrier particles, from 0.1 to 2 weight percent of deposits selected from the group consisting of (a) strontium carbonate, (b) insoluble metal hydroxides, (c) an insoluble metal hydrated oxide, and (d) mixtures thereof; provided that when the said carrier particles bear a polymeric flurocarbon coating the deposit is other than strontium carbonate.

Abstract: The invention concerns a composite gel comprising an inorganic matrix containing a fibrous inorganic polymer in which an active organic compound is dispersed. The invention also concerns a device comprising the gel and a process for delivering a controlled quantity of active organic compound in an aqueous solution. The invention applies to the prevention of biological growth in aqueous solutions used domestically, agriculturally or industrially, in particular in the solutions used in photographic processing.

Abstract: An improved photographic developing composition, for use in development of a black-and-white silver halide photographic element, is comprised of at least one developing agent and, in an amount sufficient to inhibit sludge deposition, mercapto thiadiazole glycerol propoxylate. The developing composition is broadly useful in black-and-white development but is most advantageously employed in a process for forming a high-contrast image utilizing a silver halide photographic element comprising a hydrazine compound which functions as a nucleating agent and an amino compound which functions as an incorporated booster.

Abstract: A method of processing a black-and-white photographic silver halide material in which the material is passed though a processing machine having a number of processing tanks including a developing tank, a tank with fixing ability and one or more wash or stabiliser tanks wherein the rate of addition of wash or stabiliser solution to one or more of said wash or stabiliser tanks is a function of the concentration of silver or halide ions in one or more of the wash, stabiliser or fix tanks. No silver recovery means associated with the wash, fix or stabiliser bath is necessary.

Abstract: There is provided a compound, useful in electrostatographic processes in the toner composition along with a polymeric binder, having the general structure: ##STR1## wherein R.sup.1 is selected from the group consisting of alkylene; arylene; arylenedialkylene; alkylenediarylene; oxydialkylene; and substituted or unsubstituted oxydiarylene; andR.sup.2 and R.sup.3, which can be the same or different, are independently selected from the group consisting of alkyl containing from 1 to 20 carbons; cycloalkyl containing from 3 to 18 carbons; unsubstituted aromatic ring systems; or aromatic ring systems substituted with one or more alkyl, hydroxy, alkoxy, carboxy, carboalkoxy, nitro, halo, cyano, amino, dialkylamino, acyl, trihalomethyl or alkylsulfonyl; heteroaromatic ring systems; said ring systems having a solitary ring or 2 to 3 linked or fused rings, and containing from 3 to 34 carbons; and R.sup.

Abstract: The invention concerns a method and a device for extracting the halide ions from fixing or bleaching/fixing photographic solutions containing mainly thiosulfate as the fixing agent, bringing the solutions into contact with a nanofiltration module including at least two membranes of different types.The method enables the activity of the fixing or bleaching/fixing baths to be extended during the processing of photographic products.

Abstract: A process for making ink jet inks, comprising the steps of:(A) providing an organic pigment dispersion containing a pigment, a carrier for the pigment and a dispersant;(B) mixing the pigment dispersion with rigid milling media having an average particle size less than 100 .mu.m;(C) introducing the mixture of step (B) into a high speed mill;(D) milling the mixture from step (C) until a pigment particle size distribution is obtained wherein 90% by weight of the pigment particles have a size less than 100 nanometers (nm);(E) separating the milling media from the mixture milled in step (D); and(F) diluting the mixture from step (E) to obtain an ink jet ink having a pigment concentration suitable for ink jet printers.

Abstract: There is described a fuser member having a layer comprising a condensation-cured poly(dimethyl siloxane) elastomer filled with a mixture of tin oxide and zinc oxide whereinthe layer contains from about 5 to about 40 volume percent of said mixture and wherein the proportion of tin oxide to zinc oxide in said mixture is between about 25:1 and 1:25 by volume. The fuser member exhibits a good combination of properties such as improved creep resistance, decreased weight loss, improved hardness stability, or improved thermal conductivity compared with members using other filler materials, for example, tin oxide alone or zinc oxide alone.

Abstract: A fuser for fixing electrostatographic images comprising a fusing roll and a pressure roll is disclosed. The pressure roll has a rigid metal core coated with an amorphous fluoropolymer. The fluoropolymer has a surface energy up to 16 dyne/cm and a coefficient of friction from 0.4 to 1.0.