Abstract:
The invention concerns a novel dyeing composition for dyeing keratinous fibers, in particular human hair, comprising a dicationic diazo dye of formula (I): W1—W2—N═N—W3—L—W4—N═N—W5—W6, as well as the dyeing method using said composition and the novel compounds of formula (I).
Abstract:
HYDRAZONE DYESTUFFS, PROCESSES FOR THEIR MANUFACTURE AND THEIR USE FOR DYEING AND PRINTING OF POLYACRYLNITRILE, COPOLYMERS OF ACRYLNITRILE WITH OTHER VINYL COMPOUNDS, ACID MODIFIED AROMATIC POLYESTERS, ACID MODIFIED POLYAMIDES, LEATHER, TANNED COTTON, CELLULOSE, POLYURETHANES AND FOR THE PRODUCTION OF WRITING LIQUIDS AND STAMPING INKS.
Abstract:
DIAZO COPYING PROCESS USING AS THE COUPLING AGENT A THAIAZOLIUM COMPOUND CORRESPONDING TO THE FOLOWING GENERAL FORMULA:
2-CH3,3-R1,4-R2,5-R3-THIAZOLIUM X(-)
WHEREIN: X-REPRESENTS AN ANION AND MAY BE MISSING WHEN THE ANION IS PRESENT IN THE R1 GROUP, R1 REPRESENTS AN ORGANIC GROUP INTRODUCED BY QUATERNIZATION, EACH OF R2 AND R3 REPRESENTS AND ALKY GROUP OR AN ARYL GROUP AND ONLY ONE OF R2 AND R3 IS HYDROGEN; AND RECORDING MATERIALS USEFUL THEREIN. A PREFERRED THIAZOLIUM COMPOUND IS 2,3-DIMETHYL-THIAZOLIUM ETHYLTOLUSULPHONATE AND A PREFERRED DIAZONIUM COMPOUND IS P-DIEHYLAMINOBENZENE-DIAZONIUM TETRABOROFLUORIDE.
Abstract:
Provided are a compound that generates an SHG signal but has suppressed generation of a TPF signal. Also provided is a cell examination method using the same. A compound for generating a second harmonic of light, the compound being an azobenzene derivative of formula (1), or a salt thereof. (R1 and R2 independently represent alkyl groups having 6-12 carbon atoms, and R3 to R18 independently represent substituents selected from hydrogen, halogens, alkyl groups, alkoxy groups, aryl groups, amino groups, hydroxyl groups, nitro groups, and cyano groups, but R5 and R6, R9 and R10, R13 and R14, and R17 and R18 may combine together and form a ring structure having 5-7 carbon atoms. X represents —N+R19R20R21, a sulfonyl group, a carboxyl group, or an —OR group. Here, R19, R20, and R21 independently represent straight-chain or branched alkyl groups having 1-5 carbon atoms, and —OR represents a monovalent polyalkylene oxide group terminated by an alkoxy group. a is 0 or 1, b is 0 or 1, and n is an integer of 1-10.)
Abstract:
The present invention relates to a dye composition comprising, as direct dye, at least one dye of the azo-pyridinio-pyridone family and at least one synthetic dye different from the first dye. The invention also relates to a process for dyeing keratin fibers, e.g., human keratin fibers such as the hair, and to a multi-compartment device for implementing it.
Abstract:
Polymers comprising two the more recurring units of formula ##STR1## wherein A.sub.1 is an aromatic bridging groupeach K.sub.1 is independently the radical of a coupling component,E is an aliphatic, aromatic or aromatic heterocyclic bridging radical,each R.sub.1 and R.sub.2 is independently C.sub.1-4 alkyl substituted C.sub.1-4 alkyl, C.sub.3-6 alkenyl or substituted C.sub.3-6 alkenyl orboth R.sub.1 's together with the nitrogen atom to which they are attached and/or both R.sub.2 3 s together with the nitrogen atom to which they are attached form a morpholinium, piperidinium or pyrrolidinium group, andeach A.sup..crclbar. is independently a non-chromophoric anion, are useful as dyes, particularly for dyeing paper and leather.
Abstract:
Novel azo compounds of the general formula(E).sub.n.sbsb.1 (A).sub.n.sbsb.2 --(R.sub.1).sub.n.sbsb.3 --N.dbd.N--BALare provided, wherein A is a charged group which may be positively or negatively charged, E is a counter ion which carries a charge of opposite sign to that carried by A, BAL represents a ballasting group attached to the azo group via an aromatic or heterocyclic ring which may be further substituted, and R.sub.1 is an optionally substituted aromatic or heterocyclic ring which is present unless A is a charged heterocylic group, and n.sub.1 and n.sub.2 are each 1 or 2, and n.sub.3 is 0 or 1.The compounds are useful in the photographic field, especially in the photographic dye diffusion transfer process for the production of photographic images.
Abstract:
The present invention relates to thiol/disulphide azo quinolinium compounds for dyeing keratin fibres. The invention relates to a dye composition comprising a particular thiol/disulphide azo quinolinium chromophore-containing thiol or disulphide dye, and to a process for dyeing keratin fibres such as the hair, using said composition. It similarly relates to novel particular thiol/disulphide azo quinolinium chromophore-containing dyes and to the uses thereof in dyeing keratin fibres. The dyeing process according to the invention makes it possible to dye keratin fibres without damaging them, in a manner which is particularly persistent with respect to shampooing operations and common attacks. Moreover, the novel dyes according to the invention extend the colour range to violets and blues. This process also makes it possible to dye bleached keratin fibres in a strong and chromatic manner.