摘要:
Dyes corresponding to formula I may be released imagewise from dye releasers in the dye diffusion transfer process. The dyes obtained are lightfast cyan dyes with improved spectral properties and reduced sensitivity to reducing agents ##STR1## the meanings of symbols given in formula I (A, A', G, R.sup.1, R.sup.2, R.sup.3 and R.sup.4) are indicated in the description.
摘要:
Monoazo dyes corresponding to the following formula ##STR1## are suitable for use as light-stable cyan image dyes stable to reducing agents for the dye diffusion transfer process.In the above formula:Q represents the remainder of the molecule required to complete a fused benzene or thiophene ring, which contains additional electron acceptor groups, or to complete a fused pyridine, pyrimidine, pyridazine, pyrazine or thiazole ring;G represents --OH, acyloxy;R.sup.1 represents H or one or two identical or different radicals selected from the group consisting of halogen, acyl, acylamino and --CN;Y represents H, --OH, an amino group optionally substituted by alkyl or aryl, a cyclic amino group or a group of the formula --NH--SO.sub.2 --R.sup.2 ;R.sup.2 represents alkyl, aryl, an amino group optionally substituted twice by alkyl or a cyclic amino group;n=0, 1 or 2.
摘要翻译:对应于下式的单偶氮染料适合用作稳定染料扩散转移过程的还原剂的稳定的青色影像染料。 在上式中:Q表示完成稠合苯或噻吩环所需的分子的剩余部分,其含有额外的电子受体基团,或完成稠合的吡啶,嘧啶,哒嗪,吡嗪或噻唑环; G表示-OH,酰氧基; R1表示H或选自卤素,酰基,酰氨基和-CN的一个或两个相同或不同的基团; Y表示H,-OH,任选被烷基或芳基取代的氨基,环状氨基或式-NH-SO 2 -R 2的基团; R 2表示烷基,芳基,任选被烷基或环氨基取代的氨基; n = 0,1或2。
摘要:
Cyan partial color images with increased light fastness and improved stability to moisture and heat may be produced by the dye diffusion process using cyan dyes corresponding to formula I released from dye releasing compounds. ##STR1## In the above formula, Q denotes a group for completing a pyridine or pyridazine ring optionally carrying a condensed aromatic ring;G denotes OH or NH--SO.sub.2 --R.sup.5 ;R.sup.1 denotes H or one, two or three substituents;R.sup.2 denotes H or a group with electron acceptor character preferably situated in an ortho-position to G;R.sup.3 denotes H, acylamino or a group such as G;R.sup.4 denotes H, SO.sub.2 --NR.sup.6 --R.sup.7 or NH--SO.sub.2 --R.sup.5 ;R.sup.5 denotes alkyl, aralkyl, aryl or NR.sup.6 --R.sup.7 ;R.sup.6, R.sup.7 denote H, alkyl or aralkyl or together form a group for completing a cyclic amino group.
摘要:
A color photographic recording material containing a coupler which releases a photographically active compound.Couplers corresponding to formula (I) couple with color developers to form yellow to yellow-orange dyes and, in doing so, release the residue X as a photographically active compounds. Where X is a development inhibitor, remarkably high inter-image and edge effects can be obtained. ##STR1## in which R.sup.1 represents alkyl, a heterocyclic or carbocyclic aromatic group or -NH-CO-R.sup.2 ;R.sup.2 represents alkyl, aryl or -NH-R.sup.3 ;R.sup.3 represents alkyl or aryl;Q represents the groups to complete a fused, optionally substituted benzene or heterocyclic ring;X represents the residue of a photographically active compound;TIME represents a bond which, on reaction of the coupler with the oxidation product of a color developer, is released together with the residue X attached thereto and, in turn, releases the residue X as a photographically active compound under the development conditions;n=0 or 1.
摘要:
Azo dyes corresponding to the formula (I): ##STR1## wherein R.sup.1 represents a releasable group, R.sup.2 represents H, halogen or sulphonyl, R.sup.3 and R.sup.4 represent H or groups not capable of chelate formation, and Q represents a group for completing a phenyl or naphthyl group,combine with nickel ions to form stable azo dye-metal complexes which have advantageous spectral properties. They are therefore particularly suitable for the production of highly light-fast magenta images, e.g. by the ink jet process, in which they may be used directly in the form of colored inks, or by the dye diffusion transfer process, in which they are released imagewise from suitable dye-releasers in the course of development and transferred to a dye-receptive layer.
摘要:
For the production of light-fast yellow images (transfer images and retained images) by the dye diffusion transfer process dye-releasers are useful which on development release diffusible azo dyes which can complex with nickel or copper ions and which in one of their tautomeric forms correspond to the general formula: ##STR1## wherein R.sup.1 represents alkyl, alkenyl or cycloalkyl having up to 8 carbon atoms,Z represents a radical required for completing a benzene or naphthalene ring; andL represents a substituent having a group which results from the splitting from a carrier radical.
摘要:
High edge effects and interimage effects are obtained when DIR couplers of formula I are used in color photographic silver halide materials. ##STR1## In Formula I, R.sup.1 denotes alkyl, for example C.sub.4 H.sub.9 -t, aryl, for example p-alkoxyphenyl, NH-aryl or NH--NH--R.sup.3 ;R.sup.2 denotes H, halogen, e.g. chlorine, alkoxy, alkylthio or NH--R.sup.4 ;R.sup.3 and R.sup.4 denote acyl;X denotes the residue of a photographically active compound containing a monocyclic 1,2,3- or 1,2,4-triazole ring,TIME denotes a linking member andn denotes 0 or 1.
摘要:
New dyes corresponding to the following general formula: ##STR1## wherein the substituents are as defined in the specification, are suitable for use in photographic recording materials.
摘要:
A suitable mordanting polymer for the image receiving layer in a color photographic material for the dye diffusion transfer process is a water-soluble cationic polymer containing glycidyl groups. Such polymers can be made by quaternizing a basic polyurethane, polyurea or polyurea polyurethane of the formula ##STR1## with a quaternizing agent capable of introducing glycidyl groups. The recurring unit contains a quaternizable tertiary amino group, and the recurring unit B is derived from a bis-chloroformate or a diisocyanate.
摘要:
A photographic material comprising a support and at least one layer which comprises at least one spectrally sensitised silver halide emulsion, characterised in that the material contains at least one compound of formula and/or wherein R1 denotes H, alkyl, aryl, aralkyl, alkenyl, heterocyclyl, R2 denotes OH, NH2, NHR7, NR8R9 or R1 together with R2, denotes the atoms necessary for the completion of a heteroaliphatic ring, R3 denotes OH, NH2, NHR7, NR8R9, R4 denotes H, alkyl, aryl, aralkyl, alkenyl, heterocyclyl, R5, R6 independently of each other, denote OH, NH2, NHR10, NR11R12, or R4 together with R5, or R4 together with R6, denote the atoms necessary for the completion of a heteroaliphatic ring, and the R5 or R6 radical, which is not part of a ring, denotes OH, NH2, NHR10 or NR11R12, R7, R10 denote alkyl, aryl, aralkyl, heterocyclyl, R8, R9 independently of each other, denote alkyl, aryl, aralkyl, heterocyclyl, or R8 together with R9, denotes the atoms necessary for the completion of a heteroaliphatic ring, and R11, R12 independently of each other, denote alkyl, aryl, aralkyl, heterocyclyl, or R11 together with R12, denote the atoms necessary for the completion of a heterocyclic ring, and wherein only one of the radicals R2 and R3 and only one of the radicals R5 and R6 can denote OH or NH2, is distinguished by increased spectral sensitivity, a high sensitivity/fogging ratio and a good shelf life under humid conditions.