Abstract: A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said emulsion layers comprises tabular grains having {111} major faces containing greater than 50 mole percent bromide, and accounting for greater than 50 percent total grain projected area precipitated in a peptizer that is a water dispersible cationic starch, and contains a fragmentable electron donating sensitizer.

Abstract: A photographic recording element is disclosed containing in at least one dye image forming layer unit (a) a radiation-sensitive silver halide grains include tabular grains (1) having {111} major faces, (2) containing greater than 50 mole percent bromide, based on silver, and (3) accounting for greater than 50 percent total grain projected area, (b) a fragmentable electron donating sensitizer, (c) a water dispersible cationic starch peptizer, and (d) a one equivalent dye image providing coupler. Increased photographic speed is realized.

Abstract: A photographic emulsion is disclosed containing for enhanced imaging speed high bromide {111} tabular grain emulsion peptizer with a cationic starch and sensitized with a fragmentable electron donating sensitizer. The photographic emulsion is disclosed for use in black-and-white and color photographic elements.

Abstract: Herein is disclosed a liquid ink jet ink comprising a carrier, a pigment and a compound having an active olefinic functional group.

Abstract: A photographic element is disclosed having at least one emulsion layer comprised of (a) radiation-sensitive silver halide grains, (b) sensitizer for the radiation-sensitive silver halide grains, (c) hydrophilic colloid vehicle, including peptizer for the radiation-sensitive silver halide grains, and (d) light scattering particles, wherein (a) the radiation-sensitive silver halide grains include tabular grains (1) having an aspect ratio of at least 2.0, (2) having {111} major faces, (3) containing greater than 50 mole percent bromide, based on silver, and (4) accounting for greater than 50 percent total grain projected area, (b) the sensitizer includes a fragmentable electron donating sensitizer, (c) the peptizer is a water dispersible cationic starch, and (d) the light scattering particles have aspect ratios of less than 1.5 and can be dissolved for removal from the emulsion layer. The photographic elements exhibit enhanced imaging speed and can be employed for color or black-and-white photographic imaging.

Abstract: Herein is disclosed a liquid ink jet ink for acetoacetylated poly(vinylalcohol) receivers comprising a carrier, a pigment and a hardener. A method of using the ink is also disclosed.

Abstract: Increased speed with minimal halation is provided by a photographic element having a specularly reflective silver mirror coating coated between a hydrophilic colloid containing crosslinking sites forming an undercoat and a silver halide emulsion layer unit containing a hydrophilic colloid having crosslinking sites, radiation-sensitive silver halide grains, and a dye image-forming compound.Following imagewise exposure, photographic processing is conducted by (1) developing the photographic element with a color developing agent to create a dye image, (2) converting to silver halide the silver mirror coating and the silver produced by development, and (3) fixing the photographic element while concurrently crosslinking the hydrophilic colloid contained in the emulsion layer unit to the hydrophilic colloid contained in the undercoat.

Abstract: A process of preparing a photographically useful high chloride {100} tabular grain emulsion is disclosed that, following grain nucleation, introduces the total silver required for grain growth before undertaking ripening at a temperature of from 60 to 95.degree. C. The advantages attainable include a higher concentration of the silver in the final emulsion and high chloride tabular grains having larger mean grain sizes and higher average aspect ratios and accounting for a higher percentage of total grain projected area.

Abstract: A process of preparing a photographically useful high chloride {100} tabular grain emulsion is disclosed. The grain characteristics of the emulsion are improved by interrupting precipitation of the grain nuclei used to prepare the emulsion by performing a halide conversion step in which a molar ratio of iodide ion to bromide ion in the range of from 1.times.10.sup.-4 :1 to 5.times.10.sup.-2 :1 is employed.

Abstract: A process is disclosed of precipitating high chloride {100 } tabular grain emulsions having an average tabular grain thickness of less than 0.3 micrometer. Higher average grain equivalent circular diameters and aspect ratios are realized by employing a gelatino-peptizer during at least a portion of the precipitation that satisfies the formula:(Pro+Hypro).div.(Ser+Thr)=<4.0wherein Pro, Hypro, Ser and Thr represent the proline, hydroxyproline, serine, and threonine amino acid components, respectively, of the gelatino-peptizer. When the formula satisfying gelatino-peptizer is present during grain nucleation and contains at least 40 micromoles of methionine per gram of gelatino-peptizer, the high chloride {100} tabular grains account for a high proportion of total grain projected area. When the formula satisfying gelatino-peptizer is present during grain growth and contains <4 micromoles of methionine per gram of gelatino-peptizer, the time required to prepare the emulsion is reduced.

Abstract: Photographically useful radiation-sensitive high chloride {100} tabular grain emulsions containing iodide are disclosed. A high proportion of the {100} tabular grains contain crystal lattice dislocations extending inwardly from their peripheral edges. The dislocations are created by introducing elemental iodine into a high chloride {100} tabular grain emulsion, reducing the iodine to iodide, displacing chloride ions at the peripheral edges of the tabular grains with iodide ions, and then continuing growth of the high chloride {100} tabular grains. The dislocations in the peripheral and, particularly, corner regions of the tabular grains increase their sensitivity.

Abstract: A process is disclosed for preparing high chloride {100} tabular grain emulsions containing crystal lattice dislocations in peripheral regions of the tabular grains. In the initial step of the process a radiation-sensitive high chloride {100} tabular grain emulsion is produced to provide host grains. Lateral growth lateral growth of the {100} major surfaces of the tabular grains is extended by precipitating a high chloride peripheral region onto the host tabular grains. After the host grains have been provided an iodide ion source compound with a maximum second order reaction rate constant within the dispersing medium of less than 1.times.10.sup.3 mole.sup.-1 sec.sup.-1 is introduced into the host emulsion to release iodide ions for incorporation into the tabular grains at their peripheral edges by chloride ion displacement. In the resulting emulsion 10 or more crystal lattice dislocations extending inwardly from the peripheral edges of the {100} tabular grains are observed.

Abstract: A process is disclosed of precipitating a high chloride {100} tabular grain photographic emulsion in which iodide incorporation in previously formed grain nuclei is relied upon to create the crystal lattice defects responsible for tabular grain growth. Undesirable dilution of the emulsion is avoided by replacing soluble iodide salt solution addition with iodine solution addition, allowing the volume of the iodine solution to be limited to less than 10 percent of the emulsion volume at the conclusion of tabular grain growth.

Abstract: Herein is disclosed a liquid ink jet ink comprising a carrier, a pigment and a compound having an aldehyde functional group.

Abstract: A radiation-sensitive high bromide {111 } tabular grain emulsion is disclosed containing a dispersing medium including a peptizer adsorbed to the tabular grains. The peptizer is a polymeric hydrophilic colloid containing repeating units derived from a diallylammonium monomer.

Abstract: A process is disclosed of preparing a photographically useful emulsion containing radiation-sensitive silver iodohalide grains. Silver halide grains having a face centered cubic rock salt crystal lattice structure are precipitated within an aqueous dispersing medium including a hydrophilic colloid peptizer. Iodide ion is introduced into the crystal lattice structure by introducing elemental iodine into the dispersing medium and maintaining the dispersing medium within a pH range of from 5 to 8.

Abstract: A radiation-sensitive emulsion is disclosed comprised of a dispersing medium and a coprecipitated grain population having a coefficient of variation of less than 30 percent. The coprecipitated grain population consists essentially of tabular grains containing greater than 50 mole percent bromide, based on silver, and having {111} major faces. The dispersing medium is comprised of (a) a cationic starch peptizer and (b) a polyalkylene oxide block copolymer surfactant.

Abstract: A photographic emulsion is disclosed comprised of a radiation-sensitive high bromide tabular grain emulsion. At least 50 percent of total grain projected area is accounted for by tabular grains each comprised of (a) less than 12 mole percent iodide and greater than 50 mole percent bromide, based on silver, (b) a central region accounting for at least 50 percent of grain projected area, and (c) a peripheral region containing crystal lattice dislocations and a higher iodide concentration than the overall average iodide concentration of the tabular grains. The emulsion contains a hydrophilic colloid peptizer derived from a water dispersible cationic starch.The iodide and dislocations in the peripheral regions contribute to increased photographic speeds. The water dispersing cationic starch facilitates emulsion precipitation and chemical sensitization.

Abstract: A dual coated radiographic element is disclosed including at least one radiation-sensitive emulsion comprised of silver halide grains containing greater than 50 mole percent bromide and less than 4 mole percent iodide, based on silver, with greater than 50 percent of total grain projected area being accounted for by tabular grains having {111} major faces, a spectral sensitizing dye adsorbed to the surfaces of the silver halide grains, and hydrophilic colloid vehicle acting as a peptizer and a binder for the silver halide grains. At least the portion of the vehicle acting as a peptizer is a hydrophilic colloid derived from a water dispersible cationic starch.

Abstract: A high bromide tabular grain photographic emulsion is disclosed containing as a peptizer a water dispersible cationic starch.