DE4104664A1 - Solid dry cake for cleaning skin - contg. salt of isethionic acid ester and alkali metal salt of alkyl:sulpho:acetate, avoiding prodn. of slime when wet - Google Patents

Solid dry cake for cleaning skin - contg. salt of isethionic acid ester and alkali metal salt of alkyl:sulpho:acetate, avoiding prodn. of slime when wet

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Publication number
DE4104664A1
DE4104664A1 DE19914104664 DE4104664A DE4104664A1 DE 4104664 A1 DE4104664 A1 DE 4104664A1 DE 19914104664 DE19914104664 DE 19914104664 DE 4104664 A DE4104664 A DE 4104664A DE 4104664 A1 DE4104664 A1 DE 4104664A1
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Prior art keywords
salt
isethionic acid
weight
washes
alkali metal
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DE19914104664
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German (de)
Inventor
Klaus Dr Stanzl
Andrea Wethmar
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Sebapharma & Co GmbH
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Sebapharma & Co GmbH
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Priority to DE19914104664 priority Critical patent/DE4104664A1/en
Publication of DE4104664A1 publication Critical patent/DE4104664A1/en
Ceased legal-status Critical Current

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    • 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
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
    • A61K8/361—Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
    • 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
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • 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
    • A61K8/466—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfonic acid derivatives; Salts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/37—Mixtures of compounds all of which are anionic
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/006—Detergents in the form of bars or tablets containing mainly surfactants, but no builders, e.g. syndet bar
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/59—Mixtures
    • A61K2800/596—Mixtures of surface active compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/123—Sulfonic acids or sulfuric acid esters; Salts thereof derived from carboxylic acids, e.g. sulfosuccinates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/126—Acylisethionates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/667—Neutral esters, e.g. sorbitan esters

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Emergency Medicine (AREA)
  • Dermatology (AREA)
  • Cosmetics (AREA)
  • Detergent Compositions (AREA)

Abstract

Solid, dry cakes for cleaning the skin, in which salts of at least one ester of isethionic acid are present in excess w.r.t. other active washing cpds., contain (a) 20-50 wt.% of water-sol. alkali metal salts of isethionic acid esters with pref. mixed 6-22C aliphatic fatty acids, with iodine value below 20, (b) 3-30% of an alkali metal salt of a 10-16C alkylsulphoacetate, and (c) other usual additives of washing cakes. The cakes have pH 5-7.5, as 8% aq. soln. The cake may also contain 5-30% of a 12-25C fatty acid, esp. lauric, myristic, palmitic, stearic, behenic, or erucic acid, 8-25% of a micro-wax with m.pt. above 45 deg.C, 6-25% of an ester of a 14-22C fatty acid with a 14-22C diol, triol or polyol, 6-25% of an ester of a 14-22C fatty acid and a 14-20C mono-alcohol, and 0.5-8% of a water-sol. inorganic salt, esp. NaCl and/or Na2SO4. Use of a combination of a Na salt of an isethionic acid ester, and the Na salt of an alkylsulphoacetate, in solid, dry cakes for cleaning the skin, pref. in ratio of 20-50 pts. wt. of the isethionic acid ester:3-30 pts. of alkylsulphoacetate, is claimed. ADVANTAGE - The cakes do not become slimy when w

Description

Die Erfindung betrifft feste und im wesentlichen trockene Waschstücke zur Hautreinigung mit einem Gehalt an Acyl­ isethionaten als grenzflächenaktive Verbindungen, die in Bezug zu anderen waschaktiven Substanzen im Überschuß vorliegen.The invention relates to solid and substantially dry Skin cleansing cleansing containing acyl Isethionaten as surface-active compounds, which in Reference to other washing-active substances in excess available.

Aus der DE-AS 11 18 384 sind Waschmittelstücke bekannt mit einem Gehalt an seifenfreien, organischen, synthetischen, anionischen Waschmitteln von über 75%, die sich durch einen Hauptanteil von bis zu 90% an n-Alkylsulfonat und einem Anteil von 5-40% an geradkettigen Alkylbenzolsulfonaten auszeichnen. Durch die in dieser Literaturstelle beschriebe­ nen Waschmittelstücke soll die starke Abnutzung und die Bildung von gelartigen, schmierigen Ablagerungen verhindert werden. Unter den Reinigungsmitteln, die dem Waschmittelstück zugesetzt werden können, wird auch der Laurinsäureester der Isethionsäure erwähnt.From DE-AS 11 18 384 detergent pieces are known with a content of soap-free, organic, synthetic, anionic detergents of over 75%, which are characterized by a Main proportion of up to 90% of n-alkyl sulfonate and a 5-40% proportion of straight-chain alkylbenzenesulfonates distinguished. By the in this reference described detergent pieces should be the strong wear and the Prevent formation of gelatinous, greasy deposits become. Among the cleaning agents that the detergent piece can be added, the lauric acid is the Mentions isethionic acid.

Die in der DE-AS 10 02 492 beschriebenen Reinigungsstücke sollen gemäß Anspruch 1 neben einem Alkylisethionat auch 2- 10 % eines Salzes einer Alkylarylsulfonsäure, einer Alkyl­ schwefelsäure oder einer β-Acylaminoethansulfonsäure enthalten.The cleaning pieces described in DE-AS 10 02 492 according to claim 1, in addition to an alkyl isethionate also 2-  10% of a salt of an alkylaryl sulfonic acid, an alkyl sulfuric acid or a β-acylaminoethanesulfonic acid contain.

In der US-PS 28 94 912 wird der Einsatz von Alkylsulfaten erwähnt und in DE-PS 24 61 139 wird der Einsatz von Alkan­ sulfonaten zur Reduzierung der starken Abnutzung von Seifenstücken beschrieben.In US-PS 28 94 912 the use of alkyl sulfates mentioned and in DE-PS 24 61 139 is the use of alkane sulfonates to reduce heavy wear of Soap pieces described.

Hollstein, M. und Spitz, L. beschreiben "Manufacture and Properties of Synthetic Toilet Soaps" in: Journal of the Oil Chemists Society, Oktober 1982, S. 442-447 und nennen dabei den Einsatz von Aluminiumtriformiat zur Reduzierung der starken Abnutzung.Hollstein, M. and Spitz, L. describe "Manufacture and Properties of Synthetic Toilet Soaps "in: Journal of the Oil Chemists Society, October 1982, pp 442-447 and call it the use of aluminum triformate to reduce the strong wear.

Es ist ferner bekannt, daß sowohl Waschstücke auf Basis von Seife als auch auf Basis von synthetischen Waschmitteln Wasser absorbieren oder hydratisieren. Das Hydrat löst sich vom Seifenstück oder wird während des nächsten Gebrauchs je nach Weichheit entfernt. Vom Verbraucher wird dies als unangenehm und unhygienisch empfunden.It is also known that both wash pieces based on Soap as well as based on synthetic detergents Absorb or hydrate water. The hydrate dissolves from the soap bar or will be used during the next use removed for softness. From the consumer this is called uncomfortable and unhygienic.

Es wurde nun gefunden, daß die Neigung zur Bildung einer solchen weichen Masse bei Waschstücken mit einem Gehalt an 20-50% des Natriumsalzes eines Esters der Isethionsäure durch das Einarbeiten von 3-30% Alkylsulfoacetat als Natriumsalz stark herabgesetzt werden kann.It has now been found that the tendency to form a such soft mass in washing pieces containing 20-50% of the sodium salt of an ester of isethionic acid the incorporation of 3-30% alkyl sulfoacetate as the sodium salt can be greatly reduced.

Gegenstand der vorliegenden Erfindung sind insbesondere feste und im wesentlichen trockene Waschstücke zur Hautreinigung, hauptsächlich bestehend aus 20-50 wasserlöslichen Alkalimetallsalzen von mindestens einem Ester der Isethion­ säure mit mindestens einer, vorzugsweise einem Gemisch von aliphatischen Fettsäuren mit 6 bis 22 Kohlenstoffatomen und einer Jodzahl von weniger als 20, gekennzeichnet durch einen Gehalt von 3-30% Alkalimetallsalzen von mindestens einem, vorzugsweise einem Gemisch von Alkylsulfoacetaten mit 10 bis 16 Kohlenstoffatomen, z. B. einer Laurylgruppe. Alkylsulfo­ acetat und Acylisethionat werden insbesondere in Verhältnis­ sen von 1 : 3 bis 1 : 6, bevorzugt im Verhältnis 1 : 4 eingesetzt. Die Waschstücke können ferner mindestens einen weiteren Zusatz für Waschstücke, wie 5-30% eines Gemisches höherer Fettsäuren mit etwa 12 bis 25 Kohlenstoffatomen, insbesondere Laurin-, Myristin-, Palmitin-, Stearin-, Behen­ oder Erucasäure als Bindemittel und Weichmacher, Microwachse, insbesondere mit einem Schmelzpunkt von über 45°C, Ester aus Fettsäuren mit 14 bis 22 Kohlenstoffatomen und zweiwertigen, dreiwertigen oder mehrwertigen Alkoholen mit 14 bis 22 Kohlenstoffatomen, zum Beispiel Glycerin, Glykol Sorbitol Mannitol oder Polyolen, z. B. Polyethylenglycol oder mit einwertigen Fettalkoholen mit 14 bis 20 Kohlenstoffatomen, zum Beispiel Cetylalkohol, Stearylalkohol oder Gemische derselben, außerdem wasserlösliche anorganische Salze wie z. B. Natriumchlorid oder Natriumsulfat enthalten. Gegebenen­ falls enthalten die Waschstücke Zusätze von weiteren in Toilettenseifenstücken üblicherweise verwendeten Stoffen wie Hautschutz- und Hautpflegemitteln, z. B. Lanolinpräparate oder Fettsäureester, Fettalkoholen, Aminosäuren, Parfüm­ stoffen, Mattierungsmitteln, z. B. Ti02, Farbstoffen, Stabilisierungsmitteln, Tocopherolacetat. Der pH-Wert des Endproduktes, gemessen in einer 8%igen wäßrigen Lösung, liegt vorzugsweise im Bereich von 5 bis 7,5. Bevorzugt sind Waschstücke zur Hautreinigung mit einem Gehalt an folgenden Bestandteilen, angegeben in Gewichtsprozent: Na-Acylisethionat 20-50%, bevorzugt 30-40%,
Fettsäure 5-30%, bevorzugt 8-20%,
Na-Salz der Isethionsäure 0-5%, insbesondere 0,5-5%,
bevorzugt 1,5-2,0%,
Na-Salz von Alkylsulfoacetat 5-40%, bevorzugt 5-10%,
Microwachs 8-20%, bevorzugt 10-15%,
Fettsäureester 6-25%, bevorzugt 8-15%,
Wasser 1-9%, bevorzugt 2-40%,
wasserlösliches Salz (NaCl Na2 SO4) 0,5-8%, bevorzugt 1,5-2,5%,
Gegebenenfalls kann ein Rest aus Titandioxid, Farbstoffen, Aminosäuren, Tocopherolacetat und weiteren üblichen Bestand­ teilen bestehen, die mit den vorgenannten Bestandteilen vermischt sind.The present invention relates in particular to solid and substantially dry cleansing skin washes, mainly consisting of 20-50 water-soluble alkali metal salts of at least one ester of isethionic acid with at least one, preferably a mixture of aliphatic fatty acids having 6 to 22 carbon atoms and an iodine number of less as 20, characterized by a content of 3-30% alkali metal salts of at least one, preferably a mixture of alkyl sulfoacetates having 10 to 16 carbon atoms, for. B. a lauryl group. Alkyl sulfo acetate and acyl isethionate are used in particular in ratios of from 1: 3 to 1: 6, preferably in the ratio 1: 4. The washing pieces may further comprise at least one further additive for washing pieces, such as 5-30% of a mixture of higher fatty acids having about 12 to 25 carbon atoms, in particular lauric, myristic, palmitic, stearic, behenic or erucic acid as binders and plasticizers, microwaxes, especially having a melting point of above 45 ° C, esters of fatty acids having 14 to 22 carbon atoms and dihydric, trihydric or polyhydric alcohols having 14 to 22 carbon atoms, for example glycerol, glycol sorbitol, mannitol or polyols, e.g. As polyethylene glycol or with monohydric fatty alcohols having 14 to 20 carbon atoms, for example cetyl alcohol, stearyl alcohol or mixtures thereof, also water-soluble inorganic salts such. For example, sodium chloride or sodium sulfate. If appropriate, the washing pieces contain additives of other substances commonly used in toilet soap bars, such as skin and skin care products, e.g. As lanolin preparations or fatty acid esters, fatty alcohols, amino acids, perfume materials, matting agents, eg. As Ti0 2 , dyes, stabilizers, tocopherol acetate. The pH of the final product, measured in an 8% aqueous solution, is preferably in the range of 5 to 7.5. Preference is given to cleansing wicks having a content of the following constituents, stated in percent by weight: Na acyl isethionate 20-50%, preferably 30-40%,
Fatty acid 5-30%, preferably 8-20%,
Na salt of isethionic acid 0-5%, in particular 0.5-5%,
preferably 1.5-2.0%,
Na salt of alkyl sulfoacetate 5-40%, preferably 5-10%,
Microwax 8-20%, preferably 10-15%,
Fatty acid esters 6-25%, preferably 8-15%,
Water 1-9%, preferably 2-40%,
water-soluble salt (NaCl Na 2 SO 4 ) 0.5-8%, preferably 1.5-2.5%,
Optionally, a balance may consist of titanium dioxide, dyes, amino acids, tocopherol acetate and other common constituents mixed with the foregoing ingredients.

Besonders vorteilhafte Waschstücke gemäß der Erfindung weisen die nachstehende ungefähre Zusammensetzung auf, angegeben in Gewichtsprozent:Particularly advantageous washing pieces according to the invention have the following approximate composition is given in Weight:

Na-AcylisethionatNa acyl isethionate 28-3528-35 Stearinsäurestearic acid 9-159-15 Kokosnußöl-FettsäurenCoconut oil fatty acids 2- 32- 3 Na-IsethionatNa isethionate 2,5- 3,52,5- 3,5 Na-AlkylsulfoacetatNa-alkyl sulfoacetate 5-105-10 MicrowachsMicro wax 11-1511-15 Fettsäureesterfatty acid ester 8-128-12 TitandioxidTitanium dioxide 0,2- 2,00.2-2.0 Farbstoffedyes 0,001- 0,0030.001-0.003 Aminosäurenamino acids 0,5- 2,00.5-2.0 a-Tocopherolacetata-tocopherol acetate 0,5- 1,50.5-1.5 ParfümPerfume 0,5- 1,50.5-1.5 Wasserwater 2,5- 4,52,5- 4,5 verschiedene Substanzendifferent substances 2,0- 4,02,0-4,0

Dabei leitet sich im Na-Acylisethionat der Alkylrest vorzugsweise vom Kokosöl oder Talgfett ab, insbesondere von den Fettsäuren Laurin-, Myristin-, Palmitin- und Stearin­ säure. Beim Na-Alkylsulfoacetat leitet sich der Alkylrest vorzugsweise von der Laurinsäure ab. Die Microwachse weisen Schmelzpunkte von über 45°C auf. Die Fettsäureester sind vorzugsweise gemischte Ester beispielsweise Glycerinmono­ stearat/-palmitat oder Cetylpalmitat/-stearat.In this case, the alkyl radical is derived in Na-acyl isethionate preferably from coconut oil or tallow fat, in particular from  the fatty acids lauric, myristic, palmitic and stearin acid. In the case of Na-alkylsulfoacetate, the alkyl radical is derived preferably from the lauric acid. The Microwachse point Melting points of over 45 ° C on. The fatty acid esters are preferably mixed esters, for example glycerol mono stearate / palmitate or cetyl palmitate / stearate.

Bestimmung der weichen Masse (Versumpfung)Determination of the soft mass (shrinkage)

Waschstücke verschiedener Zusammensetzung, aber gleicher Größe und Form werden gelocht und auf 0,1 g genau gewogen. Man hängt die gelochten Stücke in Bechergläser, die mit 30°C warmem Leitungswasser gefüllt sind und läßt die Stücke 22 Stunden im Wasser hängen (ohne Temperieren des Wassers).Wash pieces of different composition, but the same Size and shape are punched and weighed to the nearest 0.1 g. One hangs the perforated pieces in beakers, which are at 30 ° C are filled with warm tap water and leaves the pieces 22 Hanging in the water for hours (without tempering the water).

Danach werden die Stücke herausgenommen und die weiche Schicht wird abgerieben. Anschließend werden die Stücke mit einem Tuch glattgestrichen und 45 Minuten bei 60°C getrock­ net, dann auf Raumtemperatur abgekühlt und gewogen.Then the pieces are taken out and the soft ones Layer is rubbed off. Then the pieces are with Smooth a cloth and dry at 60 ° C for 45 minutes net, then cooled to room temperature and weighed.

Die Versumpfung wird als prozentualer Gewichtsverlust ermittelt:The dulling is called percentage weight loss determined:

Je höher der prozentuale Verlust, desto mehr glitschige Masse war entstanden. The higher the percentage loss, the more slippery mass was created.  

Beispielexample

Das Beispiel veranschaulicht die Wirksamkeit von Na-Lauryl­ sulfoacetat als Mittel gegen die Bildung einer weichen Masse. Ein Waschstück gemäß der Erfindung mit einem Gehalt von 38% anionischen Tensiden bestehend aus 30,5% Na-Acylisethionat und 7,5% Na-Laurylsulfoacetat, entsprechend einem Verhältnis von Sulfoacetat zu Isethionat von 1 : 4, zeigt eine Ver­ sumpfung von 21%. Vergleichende Untersuchungen haben gezeigt, daß dieses Ergebnis besser als das der auf dem Markt befindlichen Produkte mit einem entsprechenden Gehalt von 38% waschaktiver Substanzen ist. Durch den Gehalt an Alkyl­ sulfoacetat weist das Produkt außerdem eine verbesserte Hautverträglichkeit auf.The example illustrates the effectiveness of Na-lauryl sulfoacetate as a means against the formation of a soft mass. A washing piece according to the invention with a content of 38% anionic surfactants consisting of 30.5% Na acyl isethionate and 7.5% Na lauryl sulfoacetate, corresponding to a ratio of sulfoacetate to isethionate of 1: 4, shows an Ver sump of 21%. Have comparative studies shown that this result is better than that of the market products with a corresponding content of 38% washing-active substances. Due to the content of alkyl sulfoacetate, the product also has an improved Skin compatibility on.

Im einzelnen hat das erfindungsgemäße Waschstück folgende Zusammensetzung:In detail, the washing piece according to the invention has the following Composition:

Na-AcylisethionatNa acyl isethionate 30,0 Gew.-%30.0% by weight Na-LaurylsulfoacetatNa Laurylsulfoacetat 7,5 Gew.-%7.5% by weight Fettsäurenfatty acids 17 Gew.-%17% by weight Na-IsethionatNa isethionate 5 Gew.-%5% by weight MicrowachsMicro wax 10 Gew.-%10% by weight Fettsäureesterfatty acid ester 11 Gew.-%11% by weight Wasserwater 4,87 Gew.-%4.87% by weight Salz (NaCl, Na₂SO₄)Salt (NaCl, Na₂SO₄) 12 Gew.-%12% by weight TitandioxidTitanium dioxide 0,1 Gew.-%0.1% by weight Farbstoffedyes 0,02 Gew.-%0.02% by weight Aminosäuren @amino acids @ (MgAspartat, Glycin, L-Leucin, L-Lysin, DL-Alanin)(MgAspartate, Glycine, L-Leucine, L-Lysine, DL-Alanine) 0,01 Gew.-%0.01% by weight a-Tocopherolacetata-tocopherol acetate 1 Gew.-%1% by weight ParfümPerfume 1 Gew.-% 1% by weight 100 Gew.-%100% by weight

Claims (7)

1. Feste, im wesentlichen trockene, Waschstücke zur Hautreinigung, bei denen Salze von mindestens einem Ester der Isethionsäure gegenüber anderen waschaktiven Substanzen im Überschuß vorliegen, mit einem Gehalt an 20-50 Gewichtsprozent wasserlöslichen Alkalimetall­ salzen von Estern der Isethionsäure mit vorzugsweise gemischten aliphatischen Fettsäuren mit 6 bis 22 Kohlenstoffatomen und einer Jodzahl unter 20, wobei die Waschstücke einen pH-Wert im Bereich von 5 bis 7,5 aufweisen, gemessen als 8%ige wäßrige Lösung, sowie weiteren üblichen Waschstückzusätzen, gekennzeichnet durch einen Gehalt von 3-30 Gewichtsprozent an mindestens einem Alkalimetallsalz von Alkylsulfoacetaten mit 10 bis 16 Kohlenstoffatomen.1. Solid, substantially dry, skin cleansing washes in which salts of at least one ester of isethionic acid over other detergent-active substances are present in excess, containing 20-50% by weight of water-soluble alkali metal salts of esters of isethionic acid with preferably mixed aliphatic fatty acids 6 to 22 carbon atoms and an iodine value of less than 20, wherein the washes have a pH in the range of 5 to 7.5, measured as an 8% aqueous solution, and further customary Waschstückzusätze, characterized by a content of 3-30 weight percent of at least one alkali metal salt of alkyl sulfoacetates having 10 to 16 carbon atoms. 2. Waschstücke zur Hautreinigung nach Anspruch 1, gekenn­ zeichnet durch einen zusätzlichen Gehalt von 5-30 Gewichtsprozent an mindestens einer Fettsäure mit 12 bis 25 Kohlenstoffatomen, insbesondere Laurin-, Myristin-, Palmitin-, Stearin-, Behen- oder Erucasäure. 2. washes for skin cleansing according to claim 1, gekenn characterized by an additional content of 5-30 Weight percent of at least one fatty acid with 12 to 25 carbon atoms, especially lauric, myristic, Palmitic, stearic, behenic or erucic acid.   3. Waschstücke zur Hautreinigung nach einem der vorher­ gehenden Ansprüche, gekennzeichnet durch einen zusätzli­ chen Gehalt von 8-25 Gewichtsprozent an Microwachsen mit einem Schmelzpunkt von über 45°C.3. washes for skin cleansing after one of the previously Going claims, characterized by an addi content of 8-25% by weight of microwaxes with a melting point above 45 ° C. 4. Waschstücke zur Hautreinigung nach einem der vorher­ gehenden Ansprüche, gekennzeichnet durch einen zusätzli­ chen Gehalt von 6-25 Gewichtsprozent an üblichen Fettsäureestern von Fettsäuren mit 14 bis 22 Kohlen­ stoffatomen und zweiwertigen, dreiwertigen oder mehrwertigen Alkoholen mit 14 bis 22 Kohlenstoffatomen.4. washes for skin cleansing after one of the previously Going claims, characterized by an addi chen content of 6-25 weight percent of conventional Fatty acid esters of 14-22 carbon fatty acids atoms and divalent, trivalent or polyhydric alcohols having 14 to 22 carbon atoms. 5. Waschstücke zur Hautreinigung nach einem der vorher­ gehenden Ansprüche, gekennzeichnet durch einen zusätzli­ chen Gehalt von 6-25 Gewichtsprozent an üblichen Fettsäureestern von Fettsäuren mit 14 bis 22 Kohlen­ stoffatomen und einwertigen Alkoholen mit 14 bis 20 Kohlenstoffatomen.5. washes for skin cleansing after one of the before Going claims, characterized by an addi chen content of 6-25 weight percent of conventional Fatty acid esters of 14-22 carbon fatty acids and 14 to 20 monohydric alcohols Carbon atoms. 6. Waschstücke zur Hautreinigung nach einem der vorher­ gehenden Ansprüche, gekennzeichnet durch einen zusätzli­ chen Gehalt von 0,5-8 Gewichtsprozent an wasserlösli­ chen anorganischen Salzen, insbesondere Natriumchlorid und/oder Natriumsulfat.6. Wash pieces for skin cleansing after one of the before Going claims, characterized by an addi chen content of 0.5-8 weight percent of wasserlösli chen inorganic salts, in particular sodium chloride and / or sodium sulfate. 7. Verwendung einer Kombination des Na-Salzes von minde­ stens einem Isethionsäureester in Verbindung mit dem Na- Salz von mindestens einem Alkylsulfoacetat in festen, im wesentlichen trockenen, Waschstücken für die Hautreini­ gung, insbesondere im Verhältnis von 20-50 Gewichts­ teilen Isethionsäureester zu 3-30 Gewichtsteilen Alkylsulfoacetat.7. Using a combination of the Na salt of Minde at least one isethionic acid ester in conjunction with the sodium Salt of at least one alkyl sulfoacetate in solid, im essential dry, cleansing products for cleansing the skin tion, in particular in the ratio of 20-50 weight divide isethionic acid esters to 3-30 parts by weight Alkyl sulfoacetate.
DE19914104664 1991-02-15 1991-02-15 Solid dry cake for cleaning skin - contg. salt of isethionic acid ester and alkali metal salt of alkyl:sulpho:acetate, avoiding prodn. of slime when wet Ceased DE4104664A1 (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1102330B (en) * 1956-10-15 1961-03-16 Procter & Gamble Synthetic detergents and cleaning agents
US3247121A (en) * 1962-04-30 1966-04-19 Procter & Gamble Washing composition
US4100097A (en) * 1977-02-02 1978-07-11 The Hewitt Soap Company, Inc. Low pH detergent bar
GB2012803A (en) * 1978-01-19 1979-08-01 Unilever Ltd Detergent Bars
GB2015559A (en) * 1978-03-01 1979-09-12 Unilever Ltd Detergent bars
US4180470A (en) * 1977-03-30 1979-12-25 Lever Brothers Company Method for improved acyl isethionate detergent bars
US4335025A (en) * 1980-02-19 1982-06-15 Witco Chemical Corporation Process for the preparation of synthetic detergent bars, and products produced thereby
US4692261A (en) * 1985-12-20 1987-09-08 Warner-Lambert Company Skin bleaching detergent bar

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1102330B (en) * 1956-10-15 1961-03-16 Procter & Gamble Synthetic detergents and cleaning agents
US3247121A (en) * 1962-04-30 1966-04-19 Procter & Gamble Washing composition
US4100097A (en) * 1977-02-02 1978-07-11 The Hewitt Soap Company, Inc. Low pH detergent bar
US4151105A (en) * 1977-02-02 1979-04-24 The Hewitt Soap Company Inc. Low pH detergent bar
US4180470A (en) * 1977-03-30 1979-12-25 Lever Brothers Company Method for improved acyl isethionate detergent bars
GB2012803A (en) * 1978-01-19 1979-08-01 Unilever Ltd Detergent Bars
GB2015559A (en) * 1978-03-01 1979-09-12 Unilever Ltd Detergent bars
US4335025A (en) * 1980-02-19 1982-06-15 Witco Chemical Corporation Process for the preparation of synthetic detergent bars, and products produced thereby
US4692261A (en) * 1985-12-20 1987-09-08 Warner-Lambert Company Skin bleaching detergent bar

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