摘要:
The invention relates to a method for dyeing keratin fibers, especially human hair. The inventive method comprises the following steps: optionally applying a pretreatment agent M1 to the fiber, using a dye M2 on the fiber which is optionally mixed immediately before application to the fiber from a component M2a, containing at least one oxidative dye pre-product of the developer type and/or an indole and/or indole derivative and a component M2b, containing an oxidative dye and/or an enzyme. If desired, a third agent M3 is added to the individual agents M2a or M2b before mixing them or to the mixture M2, and said dye M2 is rinsed from the fiber after a period of 5–10 minutes. At least one of the agents M1, M2a, M2b or M3 contains a compound from the vitamin B6 group. The invention further relates to hair pretreatment agents, to agents for dyeing keratin fibers, to their packing in corresponding kits and to the use thereof. The inventive compounds of the vitamin B6 group and their physiologically acceptable salts are useful as coupling components in the production of oxidative dyes that contain conventional developer and/or coupling compounds and/or indole and/or indole derivatives in a substrate appropriate for dyeing. The inventive compounds are further useful as active substances that improve the hair structure.
摘要:
The present invention provides a coloring or tinting composition containing one or more certain 2-nitro-p-phenylene diamine derivatives as substantive dyes. The 2-nitro-p-phenylene diamine derivatives 1-(N-cycloheptylamino)-2-nitro-4-aminobenzene and 1-(N-cyclooctylamino)-2-nitro-4-aminobenzene are preferred.
摘要:
There are provided topical hair care compositions for improving the structure and strength of hair keratin and the fastness to washing of hair colors which contain vitamin B6 derivatives of the formula (1) or physiologically compatible salts thereof.
摘要:
A hybrid dye is provided that is useful for coloring keratin fibers and skin. The hybrid dye has the structure X-S-Y, where X is derived from a substantive dye, Y is derived from an oxidation dye precursor or a melanin precursor, and S is a direct bond or spacer group. The present invention also provides a composition for coloring keratin fibers that contains the hybrid dye.
摘要:
A composition and method for using the composition for dyeing keratin fibers. The composition consists of indole/indoline hybrid dyes and hybrid dye precursors. More particularly, the indole/indoline hybrid dyes and hybrid dye precursors correspond to formula (I): X—S—Y (I) where X is a group derived from an indole or indoline derivative as a melanin precursor, Y is a group derived from an oxidation dye precursor of the secondary or primary intermediate type or an indole or indoline derivative as a melanin precursor; and S is a structural element which is common constituent of the groups X and Y, a direct bond or at least one spacer group. The composition may also be used to color human skin.
摘要:
A deep-ear-canal hearing device is worn deep in the ear canal of a user. The hearing device is easy to produce and use, has a small overall size, and can be comfortably worn deep within the auditory canal, in particular in the bony part of the auditory canal as well. The hearing device has a housing, a signal-processing apparatus, and a receiver. The signal-processing apparatus is arranged within the housing. The receiver is merely arranged partly within the housing and another part is arranged outside of the housing. The receiver only being arranged partly within the housing, it is thus not completely surrounded by the housing. Hence, the housing can have a smaller configuration. In the region where the receiver is arranged outside of the housing, the double wall in the form of, the receiver wall and, the housing wall can be dispensed with, which helps in reducing the size.
摘要:
A hearing aid can be inserted deep inside an auditory canal without the risk of injury. The hearing system has a hearing device that can be completely inserted into a human auditory canal, and a positioning device, which is attached to the hearing device in a self-retaining manner. The positioning device can be detached from the hearing device, when the latter is in the state where it is inserted into the auditory canal, and cannot or can only partly be inserted into the auditory canal because it serves as a stop on a section of the concha when the hearing device is being positioned. The positioning device is decoupled from the hearing device after placement and removed from the auditory canal.