摘要:
A resin composition is prepared by emulsion-polymerizing a cellulose ester and at least one radical-polymerizable unsaturated monomer in the aqueous medium under the presence of a dispersion stabilizer, said cellulose ester having been modified by chemically bonding thereonto a polymeric chain compatible with a polymer obtained from said radical-polymerizable unsaturated monomer.
摘要:
Disclosed is a silver halide color photographic photosensitive material in which the photosensitive layer of the photosensitive material comprising a silver halide emulsion, a developing agent and a coupler is put together with the processing layer of a processing material so that these layers are heated to form a color image in the photosensitive material, said silver halide grains in the photosensitive layer having a silver chloride content of 50 mol% or more, wherein (1) the silver halide grains, in which 50% or more of the exterior faces of the grain is made up of a (111) plane, account for 50% or more of the total projected area of the silver halide grains of the emulsion, and the developing agent has a specific molecular structure, or (2) the tabular silver halide grains having an aspect ratio of 2 or more, which have the exterior faces of the grain made up of a (100) plane and a plane of projection of the grain in a shape of a rectangle with a length to width ratio ranging from 1:1 to 1:2, or which have the exterior faces of the grain made up of a (111) plane and a plane of projection in the shape of a hexagon with the ratio of the lengths of the neighboring sides ranging from 1:1 to 1:10, account for 50% or more of the total projected area of the silver halide grains of the emulsion, and the coupler is a pyrazolotriazole coupler having a specific molecular structure.
摘要:
Disclosed is a silver halide color photographic light-sensitive material which is capable of forming an image by: after exposing a light-sensitive material, which comprises a first support having thereon at least one photographic light-sensitive layer comprising a light-sensitive silver halide emulsion, a developing agent, a compound capable of forming a dye upon coupling reaction with an oxidation product of the developing agent and a binder; attaching said light-sensitive material to a processing material, which comprises a second support having thereon a base and/or a base precursor, in such a way that the coated surfaces of the two materials faced each other, in the presence of a small amount of water which corresponds to from {fraction (1/10)} to 1 time water necessary for giving maximum swelling of all coated layers constituting the light-sensitive material and the processing material; and then heating the light-sensitive material and the processing material, wherein at least one said light-sensitive layer contains an emulsion having silver halide grains having a silver chloride content of 50 mol % or more, wherein the silver halide grains are tabular grains having (i) a main outer surface constituted by (100) faces, (ii) having a rectangular shape with adjacent major face (projection plane) edge ratios being from 1:1 to 1:2, and (iii) having an aspect ratio of 2 or more.
摘要:
The image forming process of the present invention includes subjecting a photosensitive material having at least one dye-forming layer for each of the three primary colors on a support to scanning exposure using light sources modulated in accordance with the image data, thereby reproducing a full color image of quality in which delicate shades in a high density color developed portion of high purity are reproduced stably. For the exposure dynamic range of the photosensitive material that the density of color generation of one dye-forming layer exhibiting the highest sensitivity to the light beam from at least one light source varies beyond the visual threshold with respect to a change of a modulation control minimum unit in the exposure quantity of said at least one light source, said one dye-forming layer is color generated by exposure to the light beam from another light source to which another dye-forming layer exhibits the highest sensitivity such that a variation of the color generation density of said one dye-forming layer may be below said visual threshold.
摘要:
An image is formed in a color photosensitive material through scanning exposure by using at least one semiconductor laser excited solid laser including a semiconductor laser, a non-linear optical element and means for controlling the temperature thereof as a light source for producing a laser beam. The laser beam is modulated by an external modulator in accordance with the image to be formed. Among the combinations of photosensitive layers and laser beams, at least two laser beam light sources are such that a laser beam has a wavelength falling within .+-.20 nm from the maximum wavelength in the spectral sensitivity distribution of the corresponding photosensitive layer. Each photosensitive layer has a spectral sensitivity distribution with a peak width of up to 40 nm. The method enables to form an image in a conventional silver halide photosensitive material having spectral sensitivity in the visible region using a cost effective light source, the resulting image having color generated to a satisfactory density, free of a density variation, and hence of high quality.
摘要:
A silver halide photographic material comprising at least one photosensitive emulsion layer contains silver halide grains on a support. In the silver halide photographic material, (1) the silver halide grains are prepared in the presence of iridium compounds, (2) the silver halide grains consist of silver chlorobromide which is essentially free of silver iodide, (3) at least 90 mol% of all silver halide from which the silver halide grains are made is silver chloride, (4) the silver halide grains have localized phase in which the silver bromide content exceeds at least 20 mol%, (5) the localized phase is precipitated together with at least 50% of all the iridium which is added during the preparation of the silver halide grains, and (6) the surface of the silver halide grains is chemically sensitized to the extent that the grains are essentially of the surface latent image type.
摘要:
There is disclosed a silver halide photographic material having at least one photosensitive emulsion layer containing silver halide emulsion of surface latent image type. The silver halide emulsion comprises high-silver-chloride emulsion grains that have a localized phase containing iron ions in a limited amount. According to the disclosure a silver halide photographic material can be attained that is excellent in rapid processability and high in sensitivity and contrast.
摘要:
A method for forming a color image which comprises developing an imagewise exposed silver halide color photographic material with a color developer containing at least one aromatic primary amine developing agent, wherein said silver halide color photographic material comprises a reflective support, whose transmission density in the red region ranges from 0.2 to 0.9, having thereon at least one light-sensitive emulsion layer containing at least one coupler capable of forming a dye on coupling with an oxidation product of the developing agent and silver chlorobromide grains comprising at least 80 mol % of silver chloride and containing substantially no silver iodide, said support having further provided thereon a dye represented by formula (A): ##STR1## wherein R.sub.101 and R.sub.102 each represents --OR.sub.105, --COOR.sub.105, ##STR2## --COR.sub.105, --CN or --R.sub.107, wherein R.sub.105 and R.sub.106 each represents a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, and R.sub.107 represents an alkyl group or an alkyl group substituted with a halogen atom, etc.; R.sub.103 and R.sub.104 each represents an alkyl, aralkyl or aryl group substituted with at least one of a sulfo group and a carboxyl group; and L.sub.101 represents a substituted or unsubstituted methine group, and the color developer contains from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mol/l of chloride ion and from 3.0.times.10.sup.-5 to 1.0.times.10.sup.-3 mol/l of bromide ion.
摘要:
A silver halide color photographic material which comprises a support having provided thereon at least one silver halide emulsion layer containing a cyan dye image-forming coupler represented by the following general formula (I), wherein the emulsion layer comprises silver bromide grains or silver chloro-bromide grains in which tabular grains having a mean aspect ratio of 5 or more amount to 50% or more based on the total projection area of the whole grains, and which are spectrally sensitized with a cyanine dye of the trimethine or pentamethine type or a merocyanine dye, which dye has a desensitization degree of 10 or more, thereby achieving high sensitivity and excellent fastness of photographic images and ensuring uniform quality in mass production: ##STR1## wherein R.sub.1 and R.sub.2 each represents a substituted or ubsubstituted aliphatic, aromatic or heterocyclic group; R.sub.3 represents a hydrogen atom, a halogen atom, a substituted or unsubstituted aliphatic or aromatic group or an acylamino group, and further R.sub.3 may be non-metallic atomic groups which form with R.sub.2 a nitrogen-containing 5- or 6-membered ring; Y.sub.1 represents a hydrogen atom, or a group which is eliminable upon an oxidative coupling reaction with a developing agent; and n represents 0 or 1; and further the coupler may take a polymeric form, including a dimeric form, via a group represented by R.sub.1, R.sub.2 or Y.sub.1.
摘要:
A silver halide color photographic material having, on a support, at least one light-sensitive emulsion layer containing a silver chlorobromide emulsion (having a chloride content of 80 mol % or less) substantially free of iodide, with the silver chlorobromide emulsion being spectrally sensitized with a combination of at least two kinds of spectral sensitizing dyes having specified formulae, and with the silver chlorobromide emulsion layer being hardened with at least one 1,3,5-triazine derivative having specified formula, whereby achieving inhibition for increase in fog upon long-range preservation thereof as finished goods without attended by decrease in developing speed.