摘要:
Improved photographic recording materials containing at least one silver halide emulsion layer with comparatively high sensitivity and at least one silver halide emulsion layer with comparatively low sensitivity. Color couplers and DIR compounds of differing reactivities are associated with these layers.
摘要:
In a process for hardening gelatine containing photographic layers, in particular multilayered photographic films, using conventional hardeners and quick acting hardeners, the surface of a layer which contains gelatine and complex forming organic or inorganic salts is exposed to the action of an aqueous solution containing a wetting agent and a quick acting hardener, the quantity of water applied with the solution being calculated so that the layer or multilayered film undergoes swelling to a certain extend, and the degree of swelling is maintained for a period from 10 to 200 seconds, whereupon the layer or multilayered film is dried at a temperature below 30.degree. C.
摘要:
Compounds corresponding to the following formula(MS--Het--(Ar).sub.m --NR.sup.1 --CO) .sub.n R.sup.2which are contained in a color-photographic recording material in a silver-free layer between a layer containing colloidal silver and a silver halide emulsion layer, improve the storage stability of the material.
摘要翻译:包含在含有胶体银和卤化银乳剂层的层之间的无银层中的彩色照相记录材料中的下式(MS-Het-(Ar)m-NR1-CO)n R 2的化合物 ,提高材料的储存稳定性。
摘要:
A high sensitivity color photographic recording medium has at least two red sensitive component silver halide emulsion layer and at least three green sensitive component silver halide emulsion layers, the sensitivity of layers of the same spectral sensitivity increasing in the direction from the layer support upwards and the more sensitive red-sensitive silver halide emulsion being located between two of the green-sensitive silver halide emulsion layers.
摘要:
The light-sensitive color photographic silver halide recording material contains in at least one of its light-sensitive gelatine-containing layer, color formers for the formation of the image dyes in the three primary colors, a crosslinking agent activating the carboxyl groups of gelatine selected from carbamoylonium salts, carbamoylpyridinium salts and carbamoyloxypyridinium salts and a compound acting as aldehyde-scavenger which corresponds to the general formula ##STR1## wherein Z represents the atoms required for completing a 5-6-membered substituted or unsubstituted carbocyclic ring or a substituted or unsubstituted heterocyclic ring which may contain oxygen, nitrogen or sulfur as hetero-atom.
摘要:
In a color photographic material in which at least one of the partial images yellow, magenta and cyan is produced in a double layer consisting of a first layer of lower sensitivity and a second layer of higher sensitivity and arranged further away from the layer support than said first layer, at least one color unit, preferably the blue-sensitive and/or the green sensitive color unit consists of at least three layers.(a) a first silver halide emulsion layer of low sensitivity containing a color coupler(b) a second silver halide emulsion layer which may contain a color coupler, and(c) a third layer which is free from silver halide, but contains a color coupler,the coupler in said layers a, b and c forming on color development dyes of substantially the same color which is complementary to that of the light to which the layers are sensitive.
摘要:
A photographic silver halide material with at least one halide emulsion layer and at least one substance in heterogeneous contribution emulsified in oilformer compounds and a process of preparing the said photographic silver halide materials. The substances are introduced into photographic emulsions prior to coating by way of adding a hydrophilic phase containing in emulsified form the substances which are emulsified in the hydrophilic phase in form of a solution containing at least one substantially diffusion-resistant, substantially water-insoluble, substantially non-coupling dispersible .beta.-diketo compound with at least 9 carbon atoms, .beta.-keto carboxylic acid ester, .beta.-keto carboxylic acid amide, cyanoacetyl compound or .beta.-dicarboxylic acid ester with at least 13 carbon atoms as oilformer. The photographic material shows advantageous results i.a. with respect of stability of the emulsified substances in the layers and excellent sensitometric results.
摘要:
In high sensitivity color photographic recording materials the undesired color fog density is reduced by highly reactive DIR-compounds having an effective reaction velocity constant k.sub.eff of more than 20,000 [1 . mole.sup.-1 . sec.sup.-1 ] (measured at pH 10.2 by the method described hereinafter) in a concentration of from 10.sup.-5 to 10.sup.-3 mole per mole of silver halide, if contained in a light-sensitive silver halide emulsion layer or in a concentration of from 10.sup.-7 to 10.sup.-5 mole per gram of solids if contained in a silver-halide-free binder layer adjacent to a silver halide emulsion layer.
摘要:
Development inhibitor releasing compounds are thioether compounds capable of releasing on reaction with color developer oxidation products, a diffusible mercaptan that inhibits further development of silver halide. Useful DIR compounds correspond to the formula ##STR1## R.sup.1 represents hydrocarbyl Y represents --S-- or --NR.sup.2 --R.sup.2 represents hydrogen, hydrocarbyl or an electron-attracting substituent.X in its preferred embodiment represents a heteroaromatic group that when split of together with the sulfur atoms forms a silver halide development inhibiting mercaptane.
摘要:
A color photographic material having a silver halide emulsion layer and containing a thioether compound which is reactable on chromogenic development thereby releasing a diffusible substance which inhibits the development of the silver halide.The thioether compound is a homophthalimide containing a removable mercapto group containing moiety in the 4-position and its nitrogen in the 2-position atom being a tertiary nitrogen.