WO1999059534A1 - Epilatoire - Google Patents

Epilatoire Download PDF

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Publication number
WO1999059534A1
WO1999059534A1 PCT/EP1999/003268 EP9903268W WO9959534A1 WO 1999059534 A1 WO1999059534 A1 WO 1999059534A1 EP 9903268 W EP9903268 W EP 9903268W WO 9959534 A1 WO9959534 A1 WO 9959534A1
Authority
WO
WIPO (PCT)
Prior art keywords
depilatory
alkalinity
weight
depilatorium
oil
Prior art date
Application number
PCT/EP1999/003268
Other languages
German (de)
English (en)
Inventor
Burkhard Müller
Inge NEUBÜSER
Original Assignee
Hans Schwarzkopf Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hans Schwarzkopf Gmbh & Co. Kg filed Critical Hans Schwarzkopf Gmbh & Co. Kg
Publication of WO1999059534A1 publication Critical patent/WO1999059534A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q9/00—Preparations for removing hair or for aiding hair removal
    • A61Q9/04—Depilatories
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur

Definitions

  • the invention relates to a depilatorium with magnesium hydroxide as an alkalinity generator.
  • Human hair especially in the head area, is not only physiologically advantageous, but is also considered to a very large extent as an essential part of an aesthetic appearance. There are therefore a large number of corresponding hair cosmetic products which are used for cleaning, care or aesthetically advantageous changes to the hair.
  • depilators are generally preparations which are strongly alkaline (pH value at approx. 11-13) and continue to contain at least one reducing agent. These depilators are often applied to the hairy skin as cream-like preparations. In the hair swollen by the strongly alkaline environment, sulfur-sulfur bridges are then split in the hair by the reducing agents and the hair structure is thus decisively weakened and broken down. Calcium hydroxide is predominantly used as an alkalinity agent in the agents of the prior art.
  • the invention thus relates to a depilatory containing 1-10% by weight of at least one reducing agent, which is characterized in that it contains 1-25% by weight of Mg (OH) 2 and 0-10% by weight of a further alkalinity generator whose 1% by weight solution in distilled water at 20 ° C has a pH of at least 10, with the proviso that the pH of the depilatory is 10 or greater.
  • the depilators according to the invention can contain magnesium hydroxide as the only alkalinity generator in amounts of 1-25% by weight. Unless otherwise stated, all quantities in this application relate to the entire depilatory.
  • a further alkalinity agent to the agent in addition to magnesium hydroxide.
  • Ca (OH) 2 , Sr (OH) 2 , alkali silicates and alkaline earth silicates are preferred as further alkalinity donors.
  • Particularly preferred alkalinity generators are Ca (OH) 2 , Sr (OH) 2 and sodium metasilicates.
  • Ca (OH) 2 can be very particularly preferred.
  • the invention also includes the use of a combination of magnesium hydroxide and several other alkalinity generators.
  • the depilators according to the invention preferably contain magnesium hydroxide in amounts of 1-5% by weight.
  • the one or more alkalinity generators are preferably contained in amounts of 0.1-7% by weight.
  • the depilators according to the invention contain at least one reducing agent as an essential component.
  • Preferred reducing agents are thioglycolic acid, salts of thioglycolic acid with alkaline earth metal, alkali metal or ammonium ions, cysteine, thiolactic acid, thio malic acid, cysteamine, barium sulfide, glycerol monothioglycolate and dithioerythritol.
  • Thioglycolic acid and its salts mentioned above are particularly preferred.
  • the depilatories according to the invention furthermore contain 2 to 12% by weight of at least one active ingredient for intensifying the hair swelling.
  • active ingredients for increasing hair swelling are urea, thiourea, guanidines, imidazole and imidazolidinone compounds. Urea is very particularly preferred.
  • depilators according to the invention are fatty substances and oils.
  • oils and fatty substances and their mixtures with solid paraffins and waxes are suitable.
  • Possible instabilities, especially the shelf life of agents with high pH values. are known to the person skilled in the art or can be determined routinely in simple manual tests.
  • Preferred fat components are fatty alcohols with 8 to 22 carbon atoms.
  • the fatty alcohols used can be saturated or unsaturated and linear or branched.
  • the fatty alcohols are derived from preferably natural fatty acids, and it can usually be assumed that they are obtained from the esters of the fatty acids by reduction. According to the invention, it is therefore also possible to use fatty alcohol cuts which are produced by reducing naturally occurring triglycerides such as beef tallow, palm oil, peanut oil, rape oil, cottonseed oil, soybean oil, sunflower oil and linseed oil or from their transesterification products with appropriate alcohols, and thus represent a mixture of different fatty alcohols.
  • triglycerides such as beef tallow, palm oil, peanut oil, rape oil, cottonseed oil, soybean oil, sunflower oil and linseed oil
  • a preferred group of oil components are vegetable oils and their unsaponifiable components.
  • vegetable oils are sunflower oil, olive oil, soybean oil, rapeseed oil, almond oil, jojoba oil, orange oil, wheat germ oil, peach seed oil, the liquid components of coconut oil and in particular apricot oil.
  • triglyceride oils such as the liquid portions of beef tallow and synthetic triglyceride oils are also suitable.
  • liquid paraffin oils and synthetic hydrocarbons and di-n-alkyl ethers with a total of between 12 to 36 carbon atoms, in particular 12 to 24 carbon atoms, such as, for example, di-n-octyl ether, di-n- decyl ether, di-n-nonyl ether, di-n-undecyl ether, di-n-dodecyl ether, n-hexyl-n-octyl ether, n-octyl-n-decyl ether, n-decyl-n-undecyl ether, n-undecyl-n- dodecyl ether and n-hexyl-n-undecyl ether as well as di-tert-butyl ether, di-isopentyl ether, di-3-ethyldecyl ether, ter
  • the compounds are available as commercial products 1,3-di- (2-ethyl-hexyl) -cyclohexane (Cetiol ® S), and di-n-octyl ether (Cetiol ® OE) may be preferred.
  • the total amount of oil and fat components in the agents according to the invention is preferably 1-30% by weight, based on the total agent. Amounts of 5-20% by weight can be particularly preferred.
  • the depilatories according to the invention preferably also contain at least one active ingredient selected from vitamins, their provitamins and derivatives, plant extracts and moisturizers.
  • Vitamins and vitamin precursors which can preferably be used according to the invention are tocopherols and their derivatives and vitamin F.
  • Plant extracts are usually produced by extracting the entire plant, but in individual cases also exclusively from flowers and / or leaves of the plant.
  • plant extracts which can be used according to the invention, reference is made in particular to the extracts which are listed in the table beginning on page 44 of the 3rd edition of the guide to the declaration of ingredients of cosmetic products, published by the Industry Association for Personal Care and Detergents (IKW), Frankfurt.
  • the extracts from almond, aloe vera, coconut, mango, apricot, lime, wheat, kiwi and melon are particularly preferred.
  • Mixtures of several, in particular two, different plant extracts can also be present in the agents according to the invention.
  • agents in the higher pH range the person skilled in the art will also be able to convince himself, if necessary, of the stability of the plant extracts by simple tests.
  • Water, alcohols and mixtures thereof can be used as extractants for the production of the plant extracts mentioned.
  • the alcohols are included lower alcohols such as ethanol and isopropanol, but especially polyhydric alcohols such as ethylene glycol, propylene glycol and butylene glycol, both as the sole extractant and in a mixture with water, are preferred.
  • Plant extracts based on water / propylene glycol in a ratio of 1:10 to 10: 1 have proven to be particularly suitable.
  • the plant extracts can be used both in pure and in diluted form. If they are used in dilute form, they usually contain about 2 to 80% by weight of active substance and, as a solvent, the extractant or mixture of extractants used in their extraction.
  • honey extracts which are obtained in an analogous manner to the plant extracts and which usually contain 1-10% by weight, in particular 3-5% by weight, of active substance can also be used.
  • Water / propylene glycol mixtures can also be preferred extraction agents here.
  • Glycerin, sorbitol, lower glycols such as 1,2-propylene glycol and 1,3-butylene glycol and polyethylene glycols with molecular weights between about 200 and about 600 are preferably used as humectants in the depilators according to the invention.
  • Nonionic emulsifiers such as adducts of 4 to 30 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide with linear fatty alcohols with 8 to 22 C atoms, with fatty acids with 12 to 22 C atoms and with alkylphenols with 8 to 15 C atoms in the alkyl group, C 8 -C 2 alkyl mono- and oligoglycosides and their ethoxylated analogs, degrees of oligomerization from 1.1 to 5, in particular 1.2 to 1.4, and glucose as the sugar component being preferred, and addition products from 5 to 60 Moles of ethylene oxide to castor oil and hardened castor oil
  • Anionic surfactants such as, in particular, alkyl sulfates, alkyl polyglycol ether sulfates and ether carboxylic acids with 10 to 18 carbon atoms in the alkyl group and up to 12 glycol ether groups in the molecule
  • Animal and preferably vegetable protein hydrolyzates such as in particular elastin, collagen, keratin, milk protein, soy protein, silk protein, oat protein, pea protein, almond protein and wheat protein hydrolyzates,
  • Mono-, di- and oligosaccharides such as glucose, galactose, fructose, mannose, fructose and lactose
  • Silicone oils especially dialkyl- and alkylarylsiloxanes, such as dimethylpolysiloxane and methylphenylpolysiloxane, and their alkoxylated and quaternized analogues,
  • Anionic, zwitterionic, amphoteric and nonionic polymers such as derivatized cellulose ethers,
  • Thickeners such as gelatin, polyacrylamides and their copolymers, and clay minerals, especially bentonites
  • Solubilizers such as ethylene glycol, propylene glycol, glycerol and diethylene glycol,
  • Active ingredients such as allantoin, pyrrolidone carboxylic acids, propylene glycol monoethyl ether and carbonates
  • blowing agents such as propane-butane mixtures, N 2 O, dimethyl ether, CO and N 2 as well
  • the depilators according to the invention are generally formulated as a cream, lotion or gel. However, it is also possible to formulate them in other forms of application, for example as foam aerosols.
  • the depilators according to the invention can be applied to the areas of skin to be treated, for example by spraying or applying cream. Mechanical aids such as rollers and brushes can also be used. Aids with strongly ribbed surfaces have proven to be particularly suitable.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Dermatology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Cosmetics (AREA)

Abstract

L'invention concerne un épilatoire qui contient 1-10 % en poids d'au moins un agent de réduction et se caractérise en ce qu'il contient 1-25 % en poids de Mg(OH)2, ainsi que 0-10 % en poids d'un autre alcalinisant, dont une solution aqueuse à 1 % en poids présente, à 20 °C, un pH d'au moins 10, à condition que le pH de l'épilatoire soit égal ou supérieur à 10. Dans cet épilatoire, aucun cristal ne se forme, même après un temps de stockage prolongé.
PCT/EP1999/003268 1998-05-20 1999-05-11 Epilatoire WO1999059534A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998122692 DE19822692A1 (de) 1998-05-20 1998-05-20 Depilatorium
DE19822692.6 1998-05-20

Publications (1)

Publication Number Publication Date
WO1999059534A1 true WO1999059534A1 (fr) 1999-11-25

Family

ID=7868450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/003268 WO1999059534A1 (fr) 1998-05-20 1999-05-11 Epilatoire

Country Status (2)

Country Link
DE (1) DE19822692A1 (fr)
WO (1) WO1999059534A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01216915A (ja) * 1988-02-25 1989-08-30 Kashiwa Kagaku Kogyo:Kk 除毛剤

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01216915A (ja) * 1988-02-25 1989-08-30 Kashiwa Kagaku Kogyo:Kk 除毛剤

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 112, no. 2, 8 January 1990, Columbus, Ohio, US; abstract no. 11807, "Depilatories containing mercaptocarboxylic acids and magnesium compounds" page 273; XP002112232 *

Also Published As

Publication number Publication date
DE19822692A1 (de) 1999-11-25

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