United States Patent (19) . . . . . 11, 3,943,234 Roggenkamp (45) Mar. 9, 1976

54 ACIDIC EMOLLIENT LIQUID DETERGENT 3,449,430 6/1969 Dohr...... 252/547 X COMPOSITION 3,470,102 9/1969 Heinz...... 252/528 X 3496, E 10 2/1970 Shumway...... 252/142 75) Inventor: Charles L. Roggenkamp, Cincinnati, 3,557,006 1197. Ferrara ...... 252f 7 Ohio 3,658,985 4/1972 Olson...... 424/70 73) Assignee: The Procter & Gamble Company, 3,679,611 7/972 Gerecht ...... 252/542 3,711,44 | 1973 Hewitt.... 252/ 18 Cincinnati, Ohio 3,793,233 2/1974 Rose.... 252/547 22 Filed: Aug. 9, 1973 3,808,311 4/1974 Olson...... 424/70 (21) Appl. No.: 386,929 3,809,659 51974 Gerecht ...... 252/542 Primary Examiner-Dennis E. Talbert, Jr. 52 U.S. C...... 424/343; 252/142; 252/43; Assistant Examiner-Dennis L. Albrecht 252/144; 252/153; 252/154; 252/173; Attorney, Agent, or Firm-Jerry J. Yetter; Richard C. 252/547; 252/DIG. 5; 252/DIG. 13; Witte; Thomas H. O Flaherty 252/DIG. 14; 424/325 (51) Int. Cl.?... C11D 1775; C1 1D 3120; C1D 3/46; C1 1D 17/08 (57) ABSTRACT 58 Field of Search ...... 252/117, 1 18, 142, 143, 252/144, 153, 173, 528,547, DIG. 5, DIG. Liquid compositions containing an amine oxide, an 13, DIG. 14, 154; 424/325, 343, 358 occlusive emollient, and a pH controlling agent exhibit enhanced adsorption of the emollient material on ke 56) References Cited ratinous substrates such as skin when employed as a UNITED STATES PATENTS detergent composition at an acid pH. 3,442,812 5/1969 Barnhurst...... 252/42 7 Claims, No Drawings 3,943,234 1 2 the use of amine oxides in conjunction with many of the ACIDIC EMOLLIENT LIQUID DETERGENT usual detergent adjuvants, such use is consistently at COMPOSTION pH's within the basic range, rather than at the acidic ranges employed in the instant invention. Accordingly, BACKGROUND OF THE INVENTION the prior art does not appear to have recognized that This invention relates to compositions specifically amine oxides can be employed under acidic conditions designed to promote the deposition of emollient mate to lipophilize the skin, thereby promoting the adsorp rials on skin while concurrently performing a cleaning tion of emollient materials thereto. function. More particularly, the invention encompasses It is an object of the present invention to provide liquid detergent compositions especially adapted for 10 liquid detergent compositions which achieve an emol dishwashing and other cleaning uses under conditions lient effect on keratinous surfaces such as skin and hair which involve the immersion of skin in water contain when employed in an aqueous washing solution. ing said detergent compositions. The detergent compo It is a further object herein to provide emollient de sitions herein enhance the deposition of the emollient tergent compositions specifically adapted to hand dish on the skin and provide an occlusive film thereon. 5 washing and hand laundering. The use of emollients in light duty liquid detergents These and other objects are obtained herein as will and shampoo compositions is well known. The desir be seen from the following disclosure. ability of compositions which provide an emollient benefit to skin concurrently with a detergent effect has SUMMARY OF THE INVENTION long been recognized, but has been difficult to achieve. 20 The present invention encompasses liquid detergent The mechanisms of emollient deposition and soil re compositions which provide emolliency benefits when moval are generally in conflict. Emollient materials are used in contact with skin, hair or other keratinous sur usually oily in nature and provide a "load' which sub faces, comprising: stantially detracts from the cleaning and sudsing of i. from about 0.5 to about 50% by weight of an amine detergent compounds. Conversely, the cleaning action 25 oxide of the formula RR'R''NO, wherein R is an of the detergent component of such compositions usu alkyl group containing from about 8 to about 30 ally removes oily or waxy emollients from the skin, carbon atoms, and wherein R' and R'' are each thereby frustrating the purpose for including such ma alkyl groups containing from about 1 to about 18 terials in detergent compositions. carbon atoms; By the present invention there are provided liquid 30 ii. from about 0.5 to about 20% by weight of a water detergent compositions comprising an emollient mate insoluble emolient; rial, an amine oxide and a pH controlling agent. It has iii. from about 0.1 to about 20% by weight of a pH been discovered that the use of an amine oxide at an controlling agent; acid pH results in an increase of the lipophilic charac iv. the balance of said composition comprising a ter of keratinous surfaces such as skin or hair. The 35 liquid carrier, increased lipophilic character of the keratinous surface the pH of a 0.2% by weight aqueous solution of said enhances the adsorption of waxy or oily emollients composition being in the acidic range. thereon. Accordingly, enhanced deposition of waxy The detergent compositions herein are preferably and oily emollients onto surfaces such as skin is employed in an aqueous solution at a concentration of achieved by the compositions herein. 40 about 0.2% by weight. Of course, the amount employed Previous efforts have been directed to the formula will depend on the desires of the user and the soil load tion of detergent compositions and shampoos contain encountered. ing emollient materials. For example, U.S. Pat. Nos. The compositions herein can be used to cleanse fab 2,519,062; 1,674,580 and British Pat. No. 1,054,244 rics, hard surfaces such as dishes, floors and walls, or disclose compositions comprising an anionic surfactant 45 for personal care. The compositions are especially and oily or waxy emollient materials. However, the adapted for use in hand laundering and hand dishwash compositions disclosed in these patents are not specifi ing operations and provide desirable skin softening and cally designed to promote the adsorption of the emol emolliency benefits concurrently with cleaning. lients onto skin in the manner of the present invention. The use of amine oxides in emollient-containing de 50 DETALED DESCRIPTION OF THE INVENTION tergent compositions is suggested in U.S. Pat. No. The liquid detergent compositions herein comprise 3,533,955 and in THE CHEMICAL FORMULARY, three essential components, as well as a carrier liquid. Vol. XVI, page 88. An aerosol shaving cream compris The compositions can optionally contain auxiliary ma ing a stearic acid soap, an amine oxide and a silicone terials designed to augment their cleaning and aesthetic fluid is described in THE CHEMICAL FORMULARY, 55 attributes. These various components are described in Vol. XVI, page 120. U.S. Pat. No. 3,098,794 relates to detail, below. hair grooming compositions comprising fatty alcohols and amine oxides. British Pat. No. 1,254,309 discloses The Amine Oxide Component shampoos comprising amine oxide conditioning agents. The amine oxides employed in the present invention However, none of the foregoing references discloses 60 are of the general formula RR'R''NO, wherein R is an the use of amine oxides in combination with waterin alkyl group containing from about 8 to about 30, pref soluble emollients and a pH controlling agent capable erably about 8 to about 18, carbon atoms. Groups R' of maintaining the pH of an aqueous washing medium and R'' are each alkyl groups containing from about within the acid range. to about 18, preferably from about 1 to about 4, carbon Amine oxides are well known for use in detergent 65 atons. compositions; see U.S. Pat. Nos. 3,001,945; 3,223,647; Amine oxides of the type useful herein can be pre 3,281,368; 3,441,508, 3,441,611; 3,441,612; pared by the oxidation of tertiary amines in the manner 3,450,637; and 3,313,734. While these patents suggest set forth in U.S. Pat. No. 3,223,647 and British Pat. No. 3,943,234 3 4 437,566. In general terms, amine oxides are prepared Cetyl alcohol (hexadecanol) is an especially pre by the controlled oxidation of the corresponding ter ferred emollient material for use in the present compo tiary amines. sitions. Non-limiting examples of tertiary amine oxides useful in the compositions herein are dodecyldimethyl amine The pH Controlling Agent oxide, tridecyldimethyl amine oxide, tetradecyl The amine oxide component of the instant composi dimethyl amine oxide, pentadecyldimethyl amine ox tions performs its lipophilizing effect on skin when ide, hexadecyldimethyl amine oxide, heptadecyl employed under acidic conditions. Accordingly, the dimethyl amine oxide, octadecyldimethyl amine oxide, compositions herein are formulated to provide an dodecyldiethyl amine oxide, tetradecyldiethyl amine O acidic pH in aqueous cleaning solutions. Since neither oxide, hexadecyldiethyl amine oxide, octadecyldiethyl the amine oxide nor the emollient component of the amine oxide, dodecyldipropyl amine oxide, tetradecyl compositions appreciably contributes to the acidula dipropyl amine oxide, hexadecyldipropyl amine oxide. tion of the cleaning solution, a pH controlling agent is octadecyldipropyl amine oxide, dodecyldibutyl amine employed in the compositions. oxide, tetradecyldibutyl amine oxide, hexadecyldibutyl 5 While the compositions herein are useful at any pH amine oxide, octadecyldibutyl amine oxide, dodecyl below neutrality, it is preferred that they be employed methylethyl amine oxide, tetradecylethylpropyl amine in a cleaning solution at a pH of from 4.0 to 6.9. oxide, hexadecylpropylbutyl amine oxide, and oc Inorganic acids, such as hydrochloric acid, sulfuric tadecylmethylbutyl amine oxide. acid and the like can be employed in the instant com Also useful herein are the amine oxides which are positions to maintain the pH of the aqueous cleaning prepared by the oxidation of tertiary amines prepared solution within the desired pH range. However, the use from mixed alcohols obtainable from coconut oil. Such of non-buffering acids is inconvenient, inasmuch as the mixed coconutalkylamine oxides are preferred from an pH of the compositions, themselves, are quite low when economic standpoint inasmuch as it is unnecessary, for non-buffering inorganic acids are employed as the pH the present purposes, to separate the mixed alcohol 25 controlling agent. Accordingly, it is preferable to em fractions into their pure components to secure the pure ploy as the pH controlling agent an organic acid having chain length fractions of the amine oxides. a pKa of 6, or below, or one of the common buffer The preferred amine oxides herein are those wherein materials which establishes and maintains the pH of the groups R' and R'' are each methyl. Especially pre cleaning solution within the desired acid range. ferred amine oxides herein are dodecyldimethyl amine 30 Specific, non-limiting examples of buffer materials oxide, tetradecyldimethyl amine oxide, hexadecyl useful herein include the buffer solutions of Clark and dimethyl amine oxide, octadecyldimethyl amine oxide Lubs set forth in Hawk's "Physiological Chemistry' and the mixed coconutalkyldimethyl amine oxides. 14th Ed., Oser, pages 41-43. Such acidic buffer materi als include potassium phthalate buffers, phosphate The Emollient Component 35 buffers and acetate buffers. The emollient materials employed in the present Additional examples of useful pH controlling agents compositions are those water-insoluble, oily and waxy herein include citric acid, acetic acid, maleic acid, and materials well known for their cosmetic benefits on mixtures thereof, and acid buffers comprising mixtures skin. Preferred emollient materials herein include the of these acids and their water-soluble alkali metal salts. waterinsoluble waxy or oily fatty alcohols, fatty glycols 40 The type of acidic pH controlling agent employed and diols, fatty polyols and fatty acid esters. herein is not critical to the invention, inasmuch as all Non-limiting examples of water-insoluble emollient that is required is that the pH of the washing solution be materials useful herein include the primary and second maintained within the acidic range. Citric acid, acetic ary C-C monohydric alcohols, the C-Cadiols and acid and maleic acid are preferred pH controlling the C-C polyols. As specific examples of such mate 45 agents herein from the standpoint of availability and rials there can be mentioned 1-dodecanol, l-tet compatibility. Acetic acid and acetic acid/sodium ace radecanol, 1-octadecanol, 1-eicosanol, 2-dodecanol, tate buffers are especially preferred for this use, and 3-octadecanol, 4-docosanol, 1,4-tetradecanediol, 1,2- are readily available. octadecanediol, 1,2-docosanediol, 1,2,3-hexadecane triol, 1,2,4-eicosanetriol, 1,1,2,2docosanetetra-ol, and SO Carrier the like. The compositions herein are conveniently employed Specific, non-limiting examples of water-insoluble in a liquid form. Accordingly, the foregoing compo ester emollients useful in the compositions herein in nents are admixed with a liquid carrier material. The clude the triglyceride esters of the fatty acids, including choice of liquid carriers is immaterial, except that they materials such as olive oil, peanut oil, almond oil, Sun 55 should be safe, compatible with the foregoing active flower oil, cottonseed oil, soybean oil, and coconut oil. components, and should not interfere with the lipophil Natural or synthetic fatty acid esters, such as isopropyl izing action of the acidulated amine oxide material or myristate, isopropyl palmitate, isopropyl stearate, butyl with the deposition of the emollient on the lipophilized stearate, and the like are all useful herein as the water skin surface. The carrier liquids should not be in a basic insoluble emollient. Other ester materials include the 60 form to avoid neutralization of the acidic pH control complex fatty cholesterol derivatives and the lanolin ling agent. alcohol esters. The various fluid silicones can also be The most useful and preferred carrier liquids herein employed as the emollient component of the instant include water and water-alcohol mixtures. Water invention. alcohol mixtures are preferred inasmuch as the alcohol Branched-chain oily and waxy enollients, especially 55 component aids in the dispersion and dissolution of the materials such as 2-octyldodecanol, are well known as emolient and the amine oxide. Moreover, the alcohol bath oil additives and are suitable for use as the emol can be used to adjust the viscosity of the compositions lient component of the instant compositions. to a desired level. 3,943,234 S 6 Useful alcohols herein include ethanol, propanol and Suitable zwitterionic surfactants include the fatty butanol. Ethanol is preferred from an overall aesthetic alkyl betaines and sulfobetaines and similar compounds standpoint. Preferred carrier liquids herein include such as Cs to C ammonio propane sulfonate and C to water and water-ethanol mixtures containing from Cs hydroxy ammonio propane sulfonates. The am about 1 to about 50% ethanol. monio propane sulfonates can be employed at concen trations of from 1 to 5% by weight of the composition Auxiliary Materials to provide appropriate suds levels. The compositions herein can optionally contain aux The anionic surfactants can be in the form of their iliary materials which augment their cleaning and aes water-soluble salts, for instance the amine, ammonium, thetic qualities. O alkanolammonium or alkali metal salts. For most pur It is preferred to include from about 0.5 to about 75% poses it is preferred to use the anionic materials in their by weight of a non-interfering auxiliary surfactant in sodium or ammonium salt form. Generally, it is pre addition to the amine oxide in the compositions herein. ferred to use anionic surfactants in the compositions The use of an additional surfactant ingredient enhances herein because of their high foaming character. Espe the cleaning activity and contributes to the mainte 5 cially preferred anionic surfactants herein include the nance of desirable sudsing in the products. When pre alkyl ether sulfates of the general formula AESO, paring compositions for general light-duty use, such as wherein A=Co-C", alkyl, E is ethylene oxide, and for dishwashing or hand laundering, the auxiliary sur wherein x is an integer from 0 to 30; the Co-Colefin factant is usually added in an amount of from about 5 sulfonates, and mixtures thereof. to about 50% by weight of the total composition. 2) The compositions herein may optionally contain Heavy-duty fabric laundering compositions will gener other oily materials which are not properly classified as ally contain up to about 75% by weight of the auxiliary emollients, such as perfume oils and water miscible surfactant. substances having antiseptic, bactericidal or bacterio A wide variety of organic, water-soluble detersive static properties, or therapeutic properties, and, in surfactants can optionally be employed in the composi 25 general, the affinity of these oily materials for the skin tions herein. The choice of the type of surfactant de is also promoted by the acidulated amine oxides. pends on the desires of the user with regard to the Other optional additives such as perfumes, thicken intended purpose of the compositions and the commer ers such as carboxymethyl cellulose, enzymes, color cial availability of the surfactant. The only limitation on ants, and the like can be employed in the compositions the surfactants which can be added to the compositions 30 to enhance their aesthetic and/or performance charac herein is that they not interfere with the lipophilizing teristics. The only requirement of such additional mate action of the acidulated amine oxide. For example, the rials is that they be non-basic and compatible with the alkyl glycerol ether sulfonates have been found to active components. make the skin more lipophobic and to decrease the Detergency builder materials can be employed in the deposition of emollients when used in combination 35 instant compositions to sequester calcium and magne with acidulated amine oxides in the manner of the sium hardness ions, thereby promoting the detergency present invention. Accordingly, alkyl glycerol ether action. Such builder materials can be employed at con sulfonates are not contemplated for use as an auxiliary centrations of from about 5 to about 30% by weight of surfactant in the instant compositions. the total compositions. Of course, the amount can be The compositions herein can contain any of the ani 40 varied depending on the water hardness encountered. onic, cationic, nonionic and amphoteric surfactants The common alkaline detergency builder materials commonly employed in detergent compositions, exclu are not useful herein since they interfere with the acid sive of those surfactant materials which tend to make ulation of the cleaning solutions. Conversely, any of the the skin surface lipophobic. Surfactants which make well known neutral and acidic sequestrants can be the skin surface more lipophobic can be determined by 45 employed in the present compositions to provide a simply comparing the total amount of emollient depos builder function. ited on the skin in the presence and absence of added Examples of non-interfering builder materials useful surfactant. in the present compositions include the water-soluble Specific, non-limiting examples of compatible deter polycarboxylic acids, polysulfonic acids, polymaleic sive surfactants useful in the present compositions are 50 acids, aminopolyacetic acids, and the like. set forth below. The term "alkyl' used to describe Specific examples of non-interfering builder materi these various surfactants encompasses the hydrocarbyl als useful in the present compositions include ethylene alkyl groups having a chain length of from Co to C, diaminetetraacetic acid, nitrilotriacetic acid, mellitic i.e., materials of the type generally recognized for use acid, oxydisuccinic acid, and the co-polymers of ali as detergents. Suitable surfactants which can be em 55 phatic carboxylic acids such as maleic acid, itaconic ployed in the compositions herein include anionic sur acid, mesaconic acid, fumaric acid, aconitic acid, citra factants such as the alkyl sulfates, alkylbenzene sulfo conic acid, and methylenemalonic acid. These latter nates, olefin sulfonates, fatty acyl isethionates and tau polymers are described in U.S. Pat. No. 3,308,067, rides, alkylsulfoccinates, alkyl ether sulfates (AESO) incorporated herein by reference. Additional useful and many others. Common fatty acid soaps are also 60 builder materials herein include carboxymethyloxyma useful herein. lonic acid, carboxymethoxysuccinic acid, cis-cyclohex Suitable nonionic surfactants include the polyethox anehexacarboxylic acid, cis-cyclopentanetetracarboxy ysorbitan esters, fatty acyl mono- and di-ethanol am lic acid and phloroglucinol trisulfonic acid. The acidic ides, C. C. ethoxylates and mixed coconut ethoxy or neutral salts, especially the triethanolammonium lates containing to 30 ethoxylate groups. The ethoxy 65 salts of the foregoing acids, are also useful in the pres lates can be conveniently employed at concentrations ent compositions. of from 0.5 to 10% by weight to provide appropriate The foregoing acidic materials can also be employed, suds levels. in their acid form, as the pH controlling agents herein. 3,943,234 7 8 Citric acid, a preferred pH controlling component of substantially clear. The minor components are then the instant inventions, also provides a sequestrant added and a stable, clear composition is secured. fbuilder effect. The composition is added to an aqueous laundering The compositions herein are prepared by simple bath at a level of about 0.3% by weight. The pH of the blending of the various components. 5 solution is ca. 5.5. The aqueous solution of the compo Preferred compositions herein containing optional sition exhibits satisfactory cleaning of cotton andd added surfactants, builders, and other auxiliary materi polyester fabrics in a hand laundering operation. Im als typically comprise from about 1 to about 10% by mersion of the user's hands in the aqueous solution weight of the amine oxide, from about 1 to about 5% by results in a smooth, emollient effect thereon. weight of the emollient, from about 1 to about 5% by O In the foregoing composition the cetyl alcohol is weight of the pH controlling agent, from about 0% to replaced by an equivalent amount of olive oil, coconut about 40% by weight of the non-interfering auxiliary oil, and dimethyl silicone fluid, respectively, and equiv surfactant, from about 0% to about 25% by weight of alent emolliency benefits are secured. the optional, non-interfering builder, from about 0% to In the foregoing composition the coconutalkyl about 3% of the other optional additives, the balance of 15 dimethyl amine oxide is replaced by an equivalent the compositions being the liquid carrier. amount of dodecyldimethyl amine oxide, tetradecyl The following examples illustrate the compositions of dimethylamine oxide, hexadecyldimethyl amine oxide, the present invention, but are not intended to be limit and octadecyldimethyl amine oxide, respectively, the ing thereof. equivalent results are secured. A liquid detergent composition especially adapted 20 In the foregoing composition the citric acid is re for hand dishwashing is as follows. placed by an equivalent amount of acetic acid and maleic acid, respectively, the equivalent results are secured. EXAMPLE Ingredient % wt.) 25 Cetyl alcohul 3.0 EXAMPLE II Coconutalkyldimethyl 3.5 Ingredient % (w.t.) annine oxide Alkyl ether sulfate 250 'Coconutalkyldimethyl 4.5 Alkylsulfate? 50 amine oxide Acetic acid 3.2 Cetyl alcohol 3) Sodium acetate 8O Citric acid 50 EthaEncy 8. Oxydisuccinic acid O Miscellaneous 4.O Olefin sulfonate 80 Water Balance Alkyl ether sulfate? 25. Ethanoi OO 'Coconut alkyl ethoxylate) sulfate, ammonium salt. Miscellaneous minors O Mixed coconut alkylsulfates, ammonium salt. 35 Water Balance including KC elect cyte, perfume, colorant. C-C oiefin sulfonate mixture, sodium salt. Coconutalkyl (ethoxylate sulfate, sodium salt. The foregoing composition is employed as a 0.2% by weight aqueous solution in a sink. The pH of the solu The foregoing composition is adapted for use as a tion is ca. 6. The aqueous solution of the composition 40 heavy-duty cleaning composition under hard water exhibits satisfactory cleaning of dishes and glassware in conditions. The composition is employed at a concen a hand dishwashing operation. Immersion of the user's tration of about 0.25% by weight in an aqueous solu hands in the aqueous solution results in a smooth, tion. The pH of the solution is ca. 6. The aqueous solu emollient effect thereon. tion of the composition exhibits satisfactory cleaning of In the foregoing composition the cetyl alcohol is 45 dishes, floors, walls and the like. The composition is replaced by an equivalent amount of 1-dodecanol, also useful for hand laundering nylon, polyester, cotton l-tetradecanol, 3-octadecanol, 2-octyldodecanol, and and blended fabrics. Immersion of the user's hands in isopropylmyristate, respectively, and equivalent clean the aqueous solution of the composition results in a ing and emolliency benefits are secured. smooth, emollient effect thereon. The following composition is adapted for hand dish 50 In the above composition the oxydisuccinic acid is washing and light-duty hand laundering. replaced by an equivalent amount of mellitic acid, ethylenediaminetetraacetic acid, nitrilotriacetic acid, EXAMPLE I carboxymethoxysuccinic acid and phloroglucinol tri ngredient % (w.t.) Sulfonic acid, respectively, and equivalent results are Coconullalkyldimethyl 55 secured. a nine oxide SO In the above composition the ethyl alcohol is re Cetyl alcohol 50 Citric acid 1 O.O placed by an equivalent amount of propyl alcohol, and Ethan 10.0 equivalent results are secured. Perfume 0.2 In the above composition the cetyl alcohol is re Dye O.3 60 Miscclaneous minors 1. placed by an equivalent amount of 1,4-tetradecanediol, Water Balance 1,2-octadecanediol, 1,2,3-hexadecanetriol and 1,1,2,2- do-cosanetetra-ol, and equivalent results are secured. The invention herein has been fully set forth in its The above composition is prepared by admixing the compositional aspects. The invention also encom amine oxide with the water and stirring until the amine 65 passes, in a method aspect, a process for adsorbing oxide is dissolved. The citric acid is dissolved in the emolient materials of the type herein disclosed on water. The cetyl alcohol is stirred with the ethanol and Skin, comprising contacting said Skin with an aqueous blended in the foregoing solution, which remains mixture comprising from about 0.001% to about 1% by 3,943,234 10 weight of an amine oxide of the type disclosed above, 3. A composition according to claim 1 wherein the and from about 0.001% to about 1% by weight of an emollient is cetyl alcohol. emollient, at a pH of from about 4 to about 6.9, prefer 4. A composition according to claim 1 wherein the ably, pH 4 to 6. pH controlling agent has a pKa of 6, or below. What is claimed is: 5. A composition according to claim 1 wherein the 1. A liquid dishwashing detergent composition which pH controlling agent is a member selected from the provides skin emoliency benefits consisting essentially group consisting of citric acid, acetic acid, maleic acid, of and acidic mixtures of these acids and their water-solu i. from about 1% to about 10% by weight of an amine ble salts. oxide of formula RR'R''N --> O wherein R is an 10 6. A composition according to claim 1 which addi alkyl group containing from about 8 to about 18 tionally contains from about 5% to about 30% by carbon atoms and wherein R' and R'' are each weight of a non-interfering detergency builder selected C-C alkyl groups; from the group consisting of acidic and neutral water soluble salts of citric acid, ethylene diamine tetraacetic i. from about 1% to about 5% by weight of a C-C, 15 acid, nitrilotriacetic acid, mellitic acid, oxydisuccinic monohydric alcohol serving as an emollient; acid, carboxymethoxysuccinic acid, carboxymethyloxy iii. from about 1 to about 5% by weight of an organic malonic acid, cis-cyclohexane hexacarboxylic acid, acidic pH controlling agent; cis-cyclopentane tetracarboxylic acid and phloroglu iv. from about 5% to about 50% by weight of a nonin cino trisulfonic acid. terfering auxiliary surfactant selected from the 7. A process for adsorbing emollient materials on group consisting of water-soluble CoC, olefin skin comprising contacting said skin with an aqueous sulfonates, Co-C, alkyl sulfates and alkyl ether mixture comprising from about .001% to about 1% by sulfates containing up to 30 ethylene oxide groups weight of an amine oxide of the formula RR'R''N - O and mixtures thereof, wherein R is an alkyl group containing from about 8 to v. the balance of said composition comprising a liq 25 about 18 carbon atoms and wherein R' and R'' are uid carrier selected from the group consisting of each C-C alkyl groups, from about .005% to about water and mixtures thereof with C-C alcohols; 5% by weight of a non-interfering auxiliary surfactant the pH of a 0.2% by weight aqueous solution of said selected from the group consisting of water-soluble composition lying within the range 4-6.9. Co-C, olefin sulfonates, Co-C alkyl sulfates and 2. A composition according to claim 1 wherein the 30 alkyl ether sulfates containing up to 30 ethylene oxide amine oxide is a member selected from the group con groups and mixtures thereof, and from about 0.001% to sisting of dodecyldimethyl amine oxide, tetradecyl about 1% by weight of a C6 monohydric alcohol serv dimethylamine oxide, hexadecyldimethyl amine oxide, ing as an emollient, at a pH of from about 4 to about octadecyldimethyl amine oxide, and mixed coconutalk 6.9, yldimethyl amine oxides. 35

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