摘要:
A polymer of at least one compound A with at least one compound B, in which A and B correspond to the following formulae ##STR1##B: H--S.sub.n --Q.sup.1 --W).sub.m Q.sup.2 --S--H is useful in light sensitive photographic materials comprising at least one silver halide emulsion layer.
摘要:
The neutralization layer (acid polymer layer) in a photographic film unit for the production of colored transfer images contains a crosslinked acrylic or methacrylic acid copolymer having at least 30 mol % of copolymerized acrylic acid or methacrylic acid and the crosslinking has been brought about by copolymerizing said acid monomers or the corresponding esters together with a crosslinking agent having at least two copolymerizable carbon-carbon double bands.
摘要:
A colour photographic silver halide material with a support, at last one silver halide emulsion layer containing at least one yellow coupler and at least one silver halide emulsion layer containing a cyan coupler applied thereon, in which material the silver halide emulsion layer, of which there is at least one, containing at least one yellow coupler and/or the silver halide emulsion layer, of which there is at least one, containing at least one cyan coupler contains a compound of the formula (I) ##STR1## in which R.sub.1, R.sub.2, R.sub.3 mean alkyl, alkenyl or acyl andn means 6, 7 or 8,is distinguished by improved stability of the image dyes produced by processing.
摘要:
A color photographic material which contains in at least one layer a stabilizer of the formula (I) ##STR1## in which R.sub.1 means H, alkyl, aryl or acyl; R.sub.2 means --OR.sub.1, --COOH, alkyl, aryl, dialkylamino, acylamino, sulphonamido, acyl or sulphonyl; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 independently of one another mean H, halogen or a residue as R.sub.2 or two adjacent residues --OR.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 may together complete a 5- to 8-membered ring, and a polymer insoluble in water as pH 5 and soluble at pH 11 with an acid value of 30 to 300 and a Tg of.ltoreq.40.degree. C. of the formula (II) ##STR2## in which R.sub.7 mutually independently mean hydrogen, C.sub.1 -C.sub.4 alkyl or CH.sub.2 --COOH, R.sub.8 means alkyl, aryl or aralkyl a means 80 to 95 mol. % and b means 5 to 20 mol. %, is distinguished by improved stability of the image dyes.
摘要:
A color photographic recording material having at least one silver halide emulsion layer, which material contains in at least one of its layers a combination of at least one UV absorber of the formula I and at least one low molecular weight or polymeric oil formula containing acid groups, for example of the formula T--�R.sup.21 --(Q.sup.1).sub.p !.sub.q --X.sup.21 --OH (II), exhibits improved absorption for UV light. ##STR1## In the formula I: R.sup.1 and R.sup.3 mean H, halogen, hydroxy, mercapto, alkyl, aryl, alkoxy, aryloxy, acyloxy, alkylthio, arylthio, --NR.sup.5 --R.sup.6, alkoxycarbonyl, carbamoyl or sulphamoyl; R.sup.2 means H, hydroxy, halogen or alkyl; R.sup.4 means alkyl, alkoxy, alkylthio, aryloxy, arylthio or a residue of the formula ##STR2## R.sup.5 means H, alkyl or aryl; R.sup.6 means H, alkyl, aryl, acyl, alkoxycarbonyl, carbamoyl, sulphamoyl or sulphonyl; m, n and o mean 1, 2, 3 or 4, wherein two or more residues R.sup.1, R.sup.2 and R.sup.3 are identical or different; in the formula II: X.sup.21 means ##STR3## T means H or a segment of a polymer skeleton; Q.sup.1 and Q.sup.2 mean --O-- or --NR.sup.22 --; R.sup.21 means alkylene or arylene; R.sup.22 means H, alkyl or aryl; p, q and r mean 0 or 1.
摘要:
Improved photographic properties are obtained if the photographic silver halide material contains a copolymer with polypeptide segments, wherein the polypeptide segments are derived from polypeptides with an average molecular weight M.sub.w of 2000 to 40000.
摘要:
Reduced silver halide coverage combined with minimal color granularity and high inter-image effects are obtained with a color photographic negative recording material which, for at least one of the spectral regions blue, green, red, contains a laminate of several component layers containing silver halide and color couplers and consisting of at least one middle component layer B and upper and lower component layers A, A', A", A'", . . . , the middle component layer B having a sensitivity higher by at least 3 DIN than each of the component layers A, A', A", A'", . . . , and in which the component layer B contains a DIR compound which is capable of releasing an inhibitor having a diffusibility of not less than 0.4.
摘要:
A photographic recording material comprising a support, at least one photosensitive, gelatine-containing silver halide emulsion layer on one side of the support and a gelatine-containing NC layer on the other side of the support, in which the NC layer contains a certain hydrophilic polymer, is distinguished by the fact that there is relatively little E.sub.a curl during drying whereas sufficient E.sub.i curl is present after drying, so that the material is not damaged during processing.
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.