Abstract:
An image is formed by providing a coating of a crosslinkable polymeric substance on a first substrate, and applying a pattern or image of crosslinker to the coated substrate by ink jet printing to crosslink the polymeric substance. Uncrosslinked polymer is removed by washing the coated substrate, and the crosslinked polymer is then transferred imagewise to a second substrate.
Abstract:
A color filter array comprises a water soluble or water dispersible binder, at two or more color classes of water immiscible colored filter elements and a further color class of water immiscible colored filter elements. The mean diameter of the further class of filter elements is less than the mean diameter of the at least two color classes of elements. The color filter array is useful in image capture devices including digital cameras, scanners and photographic film.
Abstract:
A time-temperature indicator device comprises a polymeric layer having a first and second surface and a dye composition adhered to said first surface comprising a dye which diffuses into the polymeric layer as a result of a cumulative time-temperature exposure wherein the dye is invisible when viewed in visible radiation and is detectable as a result of absorption of non-visible radiation. The device may be attached to a product for monitoring cumulative time-temperature exposure.
Abstract:
A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units at least two of which produce images of the same hue upon processing (e.g., lacking an incorporated dye-forming coupler), and obtaining separate blue, green and red exposure records from the photographic element. The photographic element is additionally comprised of, interposed between the two emulsion layer units, an interlayer unit for transmitting to the emulsion layer unit of the two units which is nearer the support, electromagnetic radiation that this emulsion layer unit is intended to record and capable, after processing, of reflecting electromagnetic radiation within at least one wavelength region. The imagewise exposed photographic element is photographically processed to produce a silver image in each of the emulsion layer units, and is reflection scanned utilizing reflection from the interlayer unit to provide a first record of the image information in one of the two emulsion layer units and is reflection or transmission scanned to provide second and third records of the image information in the other two emulsion layer units. The first, second and third records are compared to obtain separate blue, green and red exposure records.
Abstract:
A process of making opaque grid lines for a color filter array element comprisinga) exposing to light through a negative grid pattern a photo-hardenable element comprising a support having thereon a coating comprising a water-soluble polymer; a water-soluble dichromate salt; and up to 1 g/m.sup.2 of a black pigment, black dye or dyes providing an opaque color, or a precursor thereof;b) washing the element with a solvent to remove the unexposed areas of the element, leaving a grid line pattern of hardened polymeric substance on the element; andc) drying the element to produce open cells on the support divided by opaque lines of the hardened polymeric substance greater than 0.3 .mu.m in height above the support.In another embodiment of the invention, the above dichromate salt coating does not contain any black pigment or dye, and the grid pattern is dyed black before the drying step. Thus, a process of making opaque grid lines for a color filter array element according to another embodiment of the invention comprisesa) exposing to light through a negative grid pattern a photo-hardenable element comprising a support having thereon a coating comprising a water-soluble polymer and a water-soluble dichromate salt;b) washing the element with a solvent to remove the unexposed areas of the element, leaving a grid line pattern of hardened polymeric substance on the element;c) soaking the element in a solution of black dye or dyes providing a black, opaque color of sufficient concentration to provide a laydown of up to 1.0 g/m.sup.2, andd) drying the element to produce open cells on the support divided by opaque lines of the hardened polymeric substance greater than 0.3 .mu.m in height above the support.In another preferred embodiment, the above processes include the further steps of:e) coating the cellular element with a polymeric dye-receiving layer; andf) thermally transferring individual dyes to form a color filter array element comprising a repeating mosaic pattern of colorants in a polymeric binder, the pattern being made up of color patches bounded by the opaque lines in a grid pattern.
Abstract:
A method of making an array of a repeating mosaic pattern of colorants carried on a support using(a) a plurality of donor materials each comprising a radiation-absorbing material and, respectively, a sublimable dye of a different color, and(b) a receiver element comprising a support having thereon a dye-receiving layer,wherein each donor material is in turn brought into face-to-face contact with the receiver and exposed patternwise to a high-intensity light source to transfer the desired pattern of dye to the receiver layer.
Abstract:
Loss in dark stability of a photographic silver halide element can be reduced by introducing into a dispersion comprising a dye-forming coupler for preparing such an element, a lipophilic anionic surfactant which comprises a sulphate or sulphonate group as the sole hydrophilic group and either a single aliphatic hydrocarbon group having at least 15 carbon atoms or two or more aliphatic hydrocarbon groups which together contain at least 17 carbon atoms. A second, less lipophilic, anionic surfactant can also be used in preparing the coupler dispersion.
Abstract:
Novel triazole-substituted phenylhydrazide nucleating agents are disclosed as well as silver halide photographic emulsions and elements containing silver halide grains capable of forming an internal latent image having the nucleating agents adsorbed to the surface of the silver halide grains.
Abstract:
Photographic elements, assemblages and processes for color diffusion transfer photography are described wherein certain azole compounds having at least two nitrogen atoms are employed as development restrainer precursors. Preferred azole compounds include benzotriazoles, triazoles, tetrazoles, indazoles and benzimidazoles. The azole compounds have an alkali-hydrolyzable, N,N-disubstituted carbamoyl group on one of the two nitrogen atoms.
Abstract:
Certain azo compounds are useful as spectral sensitizing dyes in photographic silver halide materials, and particularly in photothermographic materials. These azo compounds comprise moieties capable of forming substantially insoluble silver salts thereby substantially improving sensitization of silver halides.