Abstract: In a method for the oxidative dyeing of human or animal hair a hair dyeing agenet is prepared from at least one oxidation dye in creme or gel form, which is adjusted to a pH of 5.9 to 6.9.The preparation is performed with the addition of at least one alkali metal salt or alkaline earth metal salt as catalyst, which is added simultaneously with or immediately after the mixing of the oxidation dye with the oxidizing agent, the amount added being such that it is contained in the treatment-ready hair dyeing agent in proportions between 0.0001 and 1.00 wt.-%, preferably between 0.0004 and 0.001 wt.-%.

Abstract: In a method for the oxidative dyeing of human or animal hair a hair dyeing agent is prepared from at least one oxidation dye in creme or gel form, which is adjusted to a pH of 5.9 to 6.9.The preparation is performed with the addition of at least one metal salt as catalyst, which is added simultaneously with or immediately after the mixing of the oxidation dye with the oxidizing agent, the amount added being such that it is contained in the treatment-ready hair dyeing agent in proportions between 0.001 and 1.00 wt.-%, preferably between 0.0004 and 0.001 wt.-%.The metal salts used as catalyst are preferably selected from the group containing copper(II) chloride, copper(II) sulfate, cobalt chloride, cerium sulfate and vanadium sulfate.

Abstract: In a process for the oxidative dyeing of human or animal hair, a hair dyeing agent is prepared immediately before use from at least one oxidation dye and an oxidizing agent, applied to the hair to be dyed, and made to act for a given period of time, whereupon the hair dyeing agent is washed out. The hair dyeing agent that is to be used is prepared from an oxidation dye and the oxidizing agent with the concomitant use of manganese dioxide in powder form, while the finished hair dyeing agent is adjusted to a weakly acid pH in the range from 5.9 to 6.9.

Abstract: Apparatus for applying cosmetic preparations in liquid or paste form comprising a cylindrical casing provided with a slidable piston which divides the casing into first and second chambers which are sealed relative to one another. The first chamber contains a mixing member which by an operating stem guided sealingly to the outside through the piston and the second chamber, can be reciprocated inside the first chamber. This first chamber may be filled with a cosmetic preparation to be emptied by controllable amounts by an applicator detachably fastened to the casing. A tubular casing extension is inserted into the free end of the second chamber and contains a compression spring for pre-stressing the piston. The casing extension is telescopically movable into and out of the second chamber. At the free end of the casing extension a locking mechanism is provided by which the casing extension, when fully inserted into the casing, can be detachably locked to the casing.

Abstract: Applicator device for cosmetic preparations, having a closed, substantially cylindrical casing in which a piston dividing the casing into two variable-size chambers sealed from one another is displaceably disposed, the one variable-size chamber being fillable with the cosmetic preparation and being combined with a removable applicator provided with a passage for the preparation, by means of which the cosmetic preparation can be applied to the body part being treated, in quantities controllable by means of a self-closing valve. The variable-size chamber opposite the preparation reservoir is provided with a connection for bringing in a compressed gas which seeks to displace the piston to reduce the preparation reservoir, and in the passage connecting the preparation reservoir chamber to the applicator there is disposed the self-closing valve preventing escape of the preparation when the applicator is removed.

Abstract: A set of apparatus for preparing cosmetic multi-component preparations from at least two preparation components of which at least one is liquid and the other in paste or liquid form, having a pump which can be inserted into the dispensing orifice of a first supply container containing the liquid first preparation component, the suction connection thereof being immersed in the preparation component contained in the supply container and its discharge connection being so formed that it can be sealingly connected to a self-closing bottom valve of a mixing container serving for receiving and mixing of the multi-component preparation. A pressure container is provided, in which a second supply container is disposed which is volume-variable, is filled with the additional paste or liquid preparation component and is connected to an external dispensing valve. The space remaining between the second supply container and the inside walls of the pressure container is filled with a propellant under pressure.

Abstract: A container filled only partially with a pre-measured, exactly apportioned quantity of liquid active ingredient for one-time use closed in a pressure-tight manner by a closure made at least in part of a resilient material having self-resealing characteristics after piercing with a needle, and a reservoir filled with an aerosol propellant of a type incompatible with said active ingredient after a relatively short time when intermixed. The reservoir has a discharge valve with a hollow needle pushed through the resilient material of the closure and held by the material in a fluid-tight manner, whereby the container can be filled with the propellant only shortly before use of the active ingredient.

Abstract: An originality seal for disposable or single use receptacles adapted to be fitted to an applicator having a peripheral sealing surface for connection to the disposable receptacles consisting of a receptacle-side sealing surface for engaging the wall of the disposable receptacle. The seal includes a resilient sealing ring surrounding the sealing surface, the ring having at least two sealing lips, one of the lips cooperating sealingly with the peripheral sealing surface of the applicator when the disposable receptacle is fitted thereto and the second sealing lip cooperating sealingly with the receptacle side sealing surface. There is also frangible webs coupling the resilient sealing rings to the receptacle-side sealing surface so that the frangible webs will rupture by the force of engagement of the disposable receptacle to the applicator.

Abstract: A foam generator for foaming liquids having two peripheral disc portions each being connected with a housing with a gas inlet to one of the housings. The housings being connected together with the peripheral disc portions forming a hollow space such that gas fed to the hollow space through the gas inlet enters the hollow space and exits between the peripheral disc portions to form air streams to foam the liquids.

Abstract: An apparatus for foaming liquid cosmetic substances, comprising a vessel for receiving a supply of a cosmetic substance for application and an electrically driven pump merging into the vessel and having an exit side connected to the air supply duct. A foam generator in the form of a porous, open-cell member is immersed in the substance and disposed at an end of the air supply duct and is adapted to introduce the air stream supplied thereto by the pump into the substance in the form of a plurality of small bubbles. A delivery nozzle is connected to the vessel from which the foam developed in the vessel emerges.