摘要:
An ink receiving sheet comprises a support, at least one receiving layer and a top coat layer. The receiving layer comprises a hydrophilic binder and a vinyl polymeric compound and has a total coverage weight of at least 12 g/m2. The top coat layer is free of vinyl polymeric compounds and comprises a hydrophilic binder and a corn starch matting agent.
摘要翻译:油墨接收片材包括支撑体,至少一个接收层和顶涂层。 接收层包括亲水性粘合剂和乙烯基聚合物,并且具有至少12g / m 2的总覆盖重量。 面漆层不含乙烯基聚合物,并包含亲水性粘合剂和玉米淀粉消光剂。
摘要:
The present invention refers to a recording medium having an ink-receiving layer comprising an alumina hydrate and an acid-processed gelatin, wherein the acid-processed gelatin is a modified gelatin with at least some blocked carboxylic groups. The viscosity of the dispersion doesn't abruptly increase and the dispersing state remains good. In addition, the use of said dispersion provides the advantage to obtain an ink-receiving layer with proper thickness, with a glossy surface and free of defects, such as cracks or microcoagulations.
摘要:
The present invention relates to a new silver halide tabular grain emulsion, wherein said silver halide emulsion comprises tabular grains having average thickness lower than 0.15 nullm, an average diameter of at least 1.20 nullm and an average aspect ratio of at least 8:1, and showing a coefficient of diameter variation COVd within the range of from 31% to 44% and a coefficient of thickness variation COVt lower than 25%.
摘要:
A 9,9-bis (4-hydroxyphenyl) fluorene compound showing a melting curve maximum of at least 226.00null C. and a melting curve width at 5% equal to or lower than 1.30null C. A purification process for the preparation of 9,9-bis (4-hydroxyphenyl) fluorene compounds comprising a first purification step employing acetonitrile and a second purification step employing a solvent selected from the group consisting of aliphatic alcools, a mixture of aromatic hydrocarbons and aliphatic alco-hols and a mixture of aromatic hydrocarbons and nitrites. A synthesis method for the preparation of 9,9-bis (4-hydroxyphenyl) fluorene compounds comprising the steps of (a) reacting in an organic solvent a phenol compound with a 9-fluorenone in the presence of an acidic condensing agent, (b) separating the crude 9,9-bis (4-hydroxyphenyl) fluorene, and (c) purifying the crude 9,9-bis (4-hydroxyphenyl) fluorene, wherein the purifying method comprises a first purification step employing acetonitrile solvent and a second purification step employing a solvent selected from the group consisting of aliphatic alcools, a mixture of aromatic hydrocarbons and aliphatic alcohols and a mixture of aromatic hydrocarbons and nitrites.
摘要:
The present invention refers to a polymeric optical film the polymer of the polymeric optical film consisting essentially of one or more polyarylates having repeating units represented by the general structure: 1 wherein A represents one or more different bisphenolfluorene radicals having the general formula (I): 2 wherein R1 and R2 independently represent an alkyl group, a halogen atom, an alkoxy group, an acyl group, a phenyl group or a nitrile group, with the proviso that R1 and R2 are not both an alkyl group; R3, R4, R5 and R6 represent a hydrogen atom, an alkyl group, a halogen, an alkoxy group, an acyl group, a phenyl group, a nitro group, or a nitrile group, with the proviso that when R1 and R2 are both bromide atoms, at least one of R3, R4, R5 and R6 is different from hydrogen atom; B represents one or more different dicarboxy radicals having the formula: 3 wherein X is a divalent aromatic hydrocarbon group having from 6 to 20 carbon atoms, and n is the number of the repeating units which build up the polymer and is a positive integer higher than 20. The optical film of the present invention has excellent mechanical and thermal properties, a high Tg and does not readily yellow upon exposure to light.
摘要翻译:本发明涉及聚合物光学薄膜,聚合物光学薄膜的聚合物基本上由一种或多种具有由通式结构表示的重复单元的聚芳酯组成:其中A表示一种或多种具有通式(I)的不同双苯芴基:其中 R1和R2独立地表示烷基,卤素原子,烷氧基,酰基,苯基或腈基,条件是R1和R2不是烷基; R 3,R 4,R 5和R 6表示氢原子,烷基,卤素,烷氧基,酰基,苯基,硝基或腈基,条件是当R 1和R 2均为 R 3,R 4,R 5和R 6中的至少一个与氢原子不同; B表示一个或多个具有下式的不同的二羧基:其中X是具有6至20个碳原子的二价芳族烃基,n是构成聚合物并且是高于20的正整数的重复单元的数目 本发明的光学膜具有优异的机械和热性能,高Tg,并且在曝光时不容易发黄。
摘要:
An ink jet printing system comprises an ink receiving sheet and an ink-jet printer. The ink receiving sheet comprises a support, at least one receiving layer and a top coat layer. The ink-jet printer comprises an ink-jet cartridge comprising an ink. The receiving layer comprises a hydrophilic binder and a vinyl polymeric compound and has a total coverage weight of at least 12 g/m2, and the top coat layer is free of vinyl polymeric compounds and comprises a hydrophilic binder and a corn starch matting agent. The ink comprises a dye selected from the group consisting of azo and disazo dye at a concentration higher than 4% by weight, in order to achieve an optical density higher than 3.00.
摘要翻译:一种喷墨打印系统,包括油墨接收片和喷墨打印机。 油墨接收片材包括支撑体,至少一个接收层和顶部涂层。 喷墨打印机包括一个包括墨水的喷墨墨盒。 接收层包括亲水性粘合剂和乙烯基聚合物,并且具有至少12g / m 2的总覆盖重量,并且顶涂层不含乙烯基聚合物,并且包含亲水性粘合剂和玉米淀粉消光 代理商 油墨包含选自浓度高于4重量%的偶氮和双偶氮染料的染料,以获得高于3.00的光密度。
摘要:
A silver halide emulsion which comprises silver halide grains dispersed in a hydrophilic colloid mixture comprising from 5% to 25% by weight of dextran, from 20% to 40% by weight of hydrogenated poly-saccharide having an average molecular weight equal to or lower than 10,000, and from 40% to 60% by weight of gelatin. A fore-hardened photographic material comprising such an emulsion and the use of such an emulsion in a photographic material increases the sensitometry and mechanical resistance of such a photographic material.
摘要:
The present invention refers to photographic elements having, coated on a support base, at least one silver halide emulsion layer sensitized to a radiation different from the blue one in addition to its intrinsic sensitivity to the blue region, and a yellow filter layer positioned between said at least one silver halide emulsion layer and the exposure source, where such yellow filter layer contains a yellow filtering dye represented by the formula (1): 1 wherein R and R1 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted aryl group; R2, R3 and R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group and R3 and R4 may be combined to form a 6-membered ring.
摘要:
A photographic element comprising a film support base, an adhesion promoting layer, a subbing layer and at least one light-sensitive silver halide emulsion layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane, and the subbing layer, selected within the group consisting of a hydrophilic colloidal layer or a layer comprising a continuous gelled network of inorganic particles, is positioned between the adhesion promoting layer and the emulsion layer. The present invention also refers to a photographic element comprising a film support base having coated on one side thereof at least one light-sensitive silver halide emulsion layer and on the opposite side thereof an adhesion promoting layer and at least one auxiliary layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane. The present invention further refers to a film support base having coated on at least one side thereof an adhesion promoting layer and a subbing layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane and the subbing layer is selected within the group consisting of a hydrophilic colloidal layer or a layer comprising a continuous gelled network of inorganic particles. Finally, the present invention also refers to a film support base having coated on one side thereof an adhesion promoting layer and at least an auxiliary layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane binder and the auxiliary layer is an antistatic layer, a magnetic layer, a protective layer or a lubricant layer. The adhesion of the emulsion layers and/or of the auxiliary layers to the support base is improved both under wet and dry conditions.
摘要:
A silver halide emulsion which comprises silver halide tabular grains showing an average thickness lower than 0.15 nullm, an average diameter of at least 1.20 nullm and an average aspect ratio of at least 8:1 dispersed in a hydrophilic colloid mixture comprising from 10% to 30% by weight of dextran, from 20% to 40% by weight of a hydrogenated polysaccharide having an average molecular weight equal to or lower than 10,000, and from 40% to 60% by weight of gelatin and photographic element comprising it.