摘要:
Silver halide photographic elements are disclosed comprising a support having a front and a back side, at least one light-sensitive silver halide emulsion layer and a light-insensitive protective overcoat on the front side of the support, and a magnetic recording layer on the back side of the support, the light-insensitive protective overcoat comprising an outermost protective layer, wherein the outermost protective layer comprises a hydrophilic binder and dispersed particles having a mean size of less than 0.4 .mu.m of a polymer having a glass transition temperature of at least 70.degree. C. comprising units derived from monomers A and B at a weight ratio of A:B of from 97:3 to 80:20 and less than 3 wt % ionic monomers, where A represents ethylenically unsaturated monomers which form substantially water insoluble homopolymers and B represents ethylenically unsaturated non-ionic monomers capable of forming water soluble homopolymers. In preferred embodiments of the invention, the light-insensitive protective overcoat further comprises an ultraviolet absorbing layer, which is preferably positioned between the light sensitive silver halide emulsion layer and the outermost protective layer, and which preferably comprises an ultraviolet absorbing dye, a high boiling organic solvent, and a hydrophilic binder. The outermost protective layer preferably also comprises photographic process insoluble matte particles having a mean particle size of larger than 0.5 .mu.m.
摘要:
A photographic material comprising a cassette containing a processed photographic element, the photographic element comprising a support, at least one light sensitive silver halide layer and a protective overcoat layer on the light sensitive layer, the protective overcoat layer comprising a hydrophilic binder and permanent matte particles, the permanent matte particles comprising greater than 80 mole percent methyl methacrylate and having a mean particle size of from 1 to 1.8 .mu.m and a coating weight of from 70 to 250 mg/m.sup.2.
摘要翻译:一种照相材料,其包含含有经处理的照相材料的盒,所述照相元件包括支持体,至少一个感光卤化银层和在所述光敏层上的保护性外涂层,所述保护性外涂层包含亲水性粘合剂和永久性无光泽颗粒 包含大于80摩尔%甲基丙烯酸甲酯并且平均粒度为1-1.8μm,涂层重量为70-250mg / m 2的永久性无光泽颗粒。
摘要:
A silver halide photographic element comprises a support having thereon at least one light-sensitive silver halide emulsion layer and a light-insensitive protective layer, the light-insensitive protective layer comprising an ultraviolet absorbing layer closer to the support and an outermost protective layer, the ultraviolet absorbing layer comprising an ultraviolet aborbing dye, a high boiling organic solvent, and a hydrophilic binder, the outermost protective layer comprising insoluble matte particles having a mean particle size of larger than 0.5 &mgr;m, dispersed polymer particles having a mean size of less than 0.2 &mgr;m, and a glass transition temperature of at least 70° C., and a hydrophilic binder.
摘要:
A photographic imaging element comprising a support, at least one light-sensitive silver halide layer, and a light-insensitive layer comprising a polymer particle of the formula: (A).sub.x (B).sub.y (C).sub.z (I) where A is a polyfunctional ethylenically unsaturated crosslinking monomer, B is an ethylenically unsaturated monomer containing carboxylic acid groups, C is a monofunctional ethylenically unsaturated monomer other than B, x is about 0.1 to 2 mole percent, y is about 35 to 70 mole percent and z equals 100-(x+y) mole percent.
摘要:
The present invention provides UV absorbing particles which are a polymerization reaction product of ethylenically unsaturated monomers selected from esters and amides of acrylic on methacrylic acid, vinyl esters, vinyl ethers, and vinyl nitrites; an initiator, a surfactant and an ultraviolet absorber having the general formula: ##STR1## wherein R is each independently a hydrogen, halogen, alkyl, aryl, alkoxy, acyloxy, alkylthio, arylthio, amine, alkylamino, arylamino, hydroxyl, cyano, nitro, acylamino, sulfonyl, sulfamido, acyloxy and oxycarbonyl.
摘要:
A photographic element having a support, at least one light-sensitive silver halide layer and a layer containing matte bead particles, the matte bead particles being a copolymer of a styrenic monomer or acrylic acid or methacrylic acid or an acrylic acid ester or a methacrylic acid ester or mixture thereof where the ester group contains up to 6 carbon atoms and an acrylic or methacrylic acid ester where the ester group has from 10 to 22 carbon atoms, each matte bead particle being surrounded by colloidal size particles of a suspension stabilizing agent.
摘要:
A photographic element comprising a support, at least one hydrophilic light-sensitive layer, and a light-insensitive layer containing a binder and solid, nonporous polymer matte particle having the formula: (A).sub.x (B).sub.y where A is a monofunctional ethylenically unsaturated monomer, B is a polyfunctional ethylenically unsaturated monomer, x is from 0 to 55 mole %, and y is about 45 to 100 mole %.
摘要:
A thermally processable imaging element is comprised of: (1) a support; (2) a thermographic or photothermographic imaging layer on one side of the support; (3) a transparent protective layer comprising: (A) a film forming binder; (B) a dye in said protective layer in an amount sufficient to impart a pre-selected color thereto; and (C) matte particles, the color of which substantially matches the color of the protective layer.
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 are comprised of a support, a thermographic or photothermographic imaging layer, a protective overcoat layer and a backing layer and include in at least one layer thereof, polymeric matte particles comprising a polymeric core surrounded by a layer of colloidal inorganic particles. The polymeric matte particles provide enhanced image quality and improved processing characteristics with respect to adhesion, dusting and lack of haze.
摘要:
A method of preparing milled solid particles of a compound comprises the steps of forming a slurry of a liquid medium, the compound and rigid milling media in a milling chamber, contacting the compound with the milling media while in the chamber to reduce the particle size of the compound, and thereafter separating the compound from the milling media by vacuum filtration through a removable filter probe immersed in the slurry. In a preferred embodiment, the milling media is a polymeric resin having a mean particle size of less than 300 .mu.m. The method enables the use of fine milling media which provides extremely fine particles of the compound while avoiding problems, e.g., decrease yields due to separator screen plugging, associated with prior art processes.