摘要:
Photographic elements, two-sheet diffusion transfer assemblages containing such elements, and dye image-receiving elements are described. The photographic element comprises a support, a neutralizing layer, a timing layer, a vinylidene chloride polymeric layer, a polymeric primer layer, and at least one silver halide emulsion layer having a dye image-providing material associated therewith. The vinylidene chloride polymeric layer and the polymeric primer layer prevent unwanted transfer of portions of the emulsion layer to a receiver when the receiver and photographic element are peeled apart. The polymeric primer layer can be either a particular ionic vinyl polymer or a particular ionic polyester.
摘要:
Two-sheet diffusion transfer assemblages and photographic elements are described which contain a primer layer located between a polymeric acid layer and a timing layer. The primer layer prevents unwanted transfer of portions of the emulsion layer to the receiver when the receiver and photographic element are peeled apart. The primer layer comprises:(a) a mixture of gelatin and cellulose nitrate, or(b) a mixture of an acrylic acid copolymer and a particular acrylic acid terpolymer, or(c) an acrylic acid copolymer as described herein.
摘要:
Photographic assemblages, elements, receiving elements and cover sheets are described employing a novel neutralizing layer comprising a cross-linked polymer having recurring units of an N-(alkoxy-methyl)acrylamide, an acrylic acid and an alkyl acrylic ester. The need for a separate cross-linking agent is eliminated.
摘要:
A thermal dye transfer assemblage comprising:(a) a dye-donor dement comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye being a deprotonated cationic dye which is capable of being reprotonated to a cationic dye having a N--H group which is part of a conjugated system, and(b) a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the polymeric dye image-receiving layer, the polymeric dye image-receiving layer comprising a mixture of an organic polymeric or oligomeric acid which is capable of reprotonating the deprotonated cationic dye and a polymer having a Tg of less than about 19.degree. C. and having no or only slight acidity.
摘要:
A thermal dye transfer assemblage comprising:(a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye being a deprotonated cationic dye which is capable of being reprotonated to a cationic dye having a N--H group which is part of a conjugated system, and(b) a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the polymeric dye image-receiving layer, the polymeric dye image-receiving layer containing an organic acid moiety as part of the polymer chain which is capable of reprotonating the deprotonated cationic dye, the polymeric dye image-receiving layer having a Tg of less than about 25.degree. C.
摘要:
Thermally processable imaging elements in which the image is formed by imagewise heating or by imagewise exposure to light followed by uniform heating include an adhesive interlayer interposed between the imaging layer and a protective overcoat layer. The adhesive interlayer, which is comprised of a polymer having pyrrolidone functionality, strongly bonds the overcoat layer to the imaging layer.
摘要:
In accordance with this invention a diffusion transfer process is provided for forming a color photographic image comprising the steps of: (a) using an integral element comprising one and only one dimensionally stable layer comprising a coating support, and coated thereon in reactive association a mordant layer comprising a material which binds a diffusible dye, an imaging layer comprising radiation sensitive silver halide, a diffusible dye forming layer comprising a diffusible dye forming compound, and a barrier layer overlaying said diffusible dye forming layer, wherein said support is selected from the group consisting of reflection base and transparent base materials, wherein said diffusible dye forming layer is the same or different than said imaging layer, wherein said barrier layer comprises a polymer that allows the passage of solutions for processing said element when said element is contacted with an external processing bath, and wherein said barrier layer impedes the diffusion out of said element of the diffusible dye formed from said diffusible dye forming compound; (b) exposing said element to actinic radiation; (c) processing said element by contacting said element to an external bath containing compounds selected from the group consisting of conventional color developer compounds of the primary amine type, compounds which activate the release of incorporated color developers, and compounds which activate development by incorporated dye developers; (d) washing said element to remove compounds imbibed in step (c). In a preferred embodiment said integral element further comprises a stripping layer coated intermediate the mordant layer and dye forming layer. In another preferred embodiment said process further comprises the step of stripping said mordant and support from said diffusible dye forming layer.
摘要:
A base for a photographic element is provided which comprises a support having disposed thereon a vanadium pentoxide antistatic layer and an overlying barrier layer of a heat-thickening polyacrylamide polymer having hydrophilic functionality, and a method for preparing it.
摘要:
A photographic element is disclosed comprised of a support and, coated on the support, at least one radiation-sensitive silver halide emulsion comprised of tabular silver halide grains and a dispersing medium. The emulsion includes as a vehicle methacrylate polymer latex capable of reducing pressure sensitivity having a glass transition temperature of less than 50.degree. C.
摘要:
Imaging elements, in particular image transfer assemblages and processes, are described wherein a stripping layer is employed to enable a layer containing a viewable image to be separated from other portions of the element. The stripping layer comprises certain N-alkyl substituted acylamide copolymers.