摘要:
Polymeric couplers with recurring units which contain at least one urethane and/or urea group, are suitable for the production of improved photographic recording materials.
摘要:
Photographic recording materials of which the binder layers consist of protein-like binders which have been hardened in the usual way show reduced susceptibility to the effect of formaldehyde when--in addition to the usual hardeners--low molecular weight monofunctional compounds which are capable of reacting with free primary amino groups of the binder under casting and/or storage conditions without causing additional hardening are allowed to act on the binder.
摘要:
A photographic recording material contains a stabilizer in polymeric form corresponding to the following formula I ##STR1## wherein the substituents have the meanings stated in the description.
摘要:
A dye preparation consists of a water-soluble acid dye and a water-insoluble basic carrier. The carrier consists of crosslinked polymer particles of average particle diameter of less than 1 .mu.m and contains at least 2 mVal/g of quaternary ammonium or phosphonium groups. The dye reacts with the carrier in an ion exchange reaction and forms a dye polymer latex which can easily isolated in solid form, stored indefinitely and redispersed in water whenever required. It forms a so-called self-dispersing dye preparation. The dye preparation is useful for making dyed layers such as in photographic recording materials.
摘要:
A film which comprises at least one active compound and is at least partly degraded under the conditions of the site of action is suitable as a new presentation form of active compounds, in particular those having a pharmacological or biocidal action.
摘要:
An ink jet system comprising a recording material and at least one colored ink to be applied to the recording material by means of an ink jet nozzle, characterized in that at least either the material or the at least one colored ink contains at least one water-soluble compound of general formulae (I) or (II): ##STR1## wherein R.sub.1, Z.sub.1, Z.sub.2, Z.sub.3, Z.sub.4, Z.sub.5, Z.sub.6, X.sub.1, X.sub.2, X.sub.3, X.sub.4, X.sub.5, R.sub.2, R.sub.3, R.sub.4 and n have the meanings given in the description, are distinguished by improved protection of the ink jet dyes from light.
摘要:
A color photographic recording material with at least one silver halide emulsion layer and a color coupler associated with that layer, which contains in the silver halide emulsion layer or in an adjacent non-photosensitive binder layer a combination of a color coupler and a compound corresponding to general formula (I) or (II): ##STR1## in which R.sub.4 is the residue of a polymer produced by polycondensation andR.sub.1 to R.sub.3, m and n are as defined in the specification, ##STR2## in which R.sub.4 is as defined above and L.sub.1, L.sub.2, X, R.sub.5 to R.sub.11, p, q and r are as defined in the specification,is distinguished by improved stability of the image dyes produced from yellow couplers.
摘要:
Color images with improved Dmin/Dmax-relationship can be obtained from color photographic recording materials comprising color providing compounds in association to silver halide emulsion layers and comprising an additional binder in said silver halide emulsion layers or in adjacent non-lightsensitive layers a polymer having recurring structural units of a polymerized monomer which contains at least one urethane and/or urea group.
摘要:
A photographic recording material consisting of a layer support, at least one light-sensitive silver halide emulsion layer containing gelatine and optionally other gelatine-containing layers which are not light-sensitive contains in at least one of the layers a cross-linked polymer latex on the basis of a low molecular weight carboxylic acid amide. The latex may advantageously be used as a binding agent or for introducing residues of photographically active substances into a photographic layer.
摘要:
A method has been described of preparing a photosensitive emulsion comprising tabular silver halide grains rich in silver bromide, having {100} major faces and an aspect ratio more than 1.5, wherein at least 50% of the projected area of all grains is provided by said {100} tabular grains, said method comprising the step of running in a reaction vessel an aqueous silver salt solution and an aqueous alkali halide solution rich in alkali bromide, characterized in that before starting running said reaction vessel comprises in an aqueous solution of gelatin an amount of amino-modified polyvinyl alcohol as an aqueous soluble polymer.