PT97187A - Process for the preparation of an aqueous cleaning composition which produces foam - Google Patents

Abstract

A process is described for the preparation of an aqueous cleaning composition which produces foam contained in a compressible non-aerosol dispenser equipped with a container, a distribution head and liquid/air mixing means, characterized in that it comprises: a) approximately from 0.1 to 16% of an amphoteric imidazoline or ammonium surfactant, b) 0.1 to 16% of an amphoteric aminoalkanoate or iminodialkanoate surfactant, c) optionally up to 10% of an ionic surfactant, and d) water the said cleaning composition having a total surfactant concentration from 0.2 to 20% in which at least 20% includes a mixture of a and b. The composition improves the stability of the foam and its creamy appearance together with an excellent and gentle cleaning action. It is suitable for use in cleaning off make-up and facials, in foam and shower products, shampoos, etc.

Description

1. 10 15

Mod. 71 · 20,000 ex. - 90/08

The present invention relates to cleaning products. It relates in particular to personal cleansers which produce foam, suitable for cleansing the skin and / or hair, and which can be used, for example, in the form of make-up removal and facial cleansing products. foam preparations, bath preparations, shower products, shampoos, etc. Cleaning products are also suitable for other applications which require the production of a stable foam. The invention also relates to cleaning products which contain functional components, such as anti-bactericidal agents, and which exhibit improved efficacy. The foamed cosmetic compositions must meet a number of criteria, including cleaning power, foam properties, and softness / low irratability with respect to ocular skin, hair and mucous membranes. The skin is composed of several layers of cells which coat and protect the fibrous proteins of -aratine and collagen which form the essence of its structure. It is known that most of these layers, called the stratum corneum, are composed of 250% bundles. proteins surrounded * by. 80 È. thick layers. The anionic surfactants can penetrate the membrane, stratum corneum and, by delipidisation (i.e., removal of the liquids from the stratum corneum); unleash their integrity. This destruction of the topography of the skin surface leaves an impression. rough and The cosmetic cleansing agents should cleanse the skin or the soft hair, causing little or no irritation. no irritation, and without degreasing and / or drying the skin, or leaving the. tight skin after frequent use. Most foam, liquid and bar soaps fail in this respect. Synthetic surfactants are known to be mild. However, a major disadvantage of most synthetic surfactant systems is

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63307 Case: CM3-30M

When formulated for skin cleansing, it is its poor foaming action, compared to the higher standards of bar soap (bars that are rich in coconut soap and super fat). On the other hand, the use of known high foaming anionic surfactants in combination with foam enhancers can produce acceptable foam volume and quality. Unfortunately, however, the highly foaming anionic surfactants are, in fact, weak in the clinical smoothing of the skin. Surfactants which are among the mildest, such as glyceryl ether sulfuryl lauryl ether, (AGS), are lower with respect to the foam. These two facts make the process of selecting the surfactant and formulation with benefit in foam and skin sensation an act of delicate equilibrium. The somewhat severe requirements for cosmetic cleaning products limit the choice of surfactants, and the final formulations represent a certain degree of commitment. Softness is often obtained at the cost of an effective cleaning, or the foam may be sacrificed or softened, or the stability of the product, or both. Thus, there is a need for cleaning products that produce a foam. stable and high quality (compactness), which are effective in cleaning the skin and hair and which are very-smooth to the skin, hair and. mucous membranes. The use of aqueous skin cleansing compositions in so-called non-priscible foam cleaning products is disclosed in US-A-3962150. There is, however, a need for cleaning agents which produce high foam stability and softness, simultaneously with excellent standards of softness and product stability, and simplified usage characteristics over all set of conditions of use and temperature. There is also the need for cleaning products 2 1 5

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63307 Case: CM330M

to ensure an improved antibacterial action. The object of the present invention is. Foam cleansing product, suitable for personal cleansing of the skin of the hair, which can be used with makeup removal product and facial cleansing, bath foam and shower product, shampoo, etc. The product includes a non-distributor a compressible aerosol, equipped with a reservoir, a dispensing head, a liquid / air mixing device and, preferably, bending and dispensing means of valve without reversal. In the tank, it is ccntidc. aspect of this invention is an aqueous cleaning composition comprising: (a) from about 0.1% to about 16%, in a scavenger of a first amphoteric surfactant, selected from imidazolinium derivatives of formula I-2H40R2

R 2 is hydrogen or CH 2 Z, each Z is independently or CH 2 CO 2 M, and R 4 is H, alkali metal, alkali metal earth , ammonium and alkanelammonium; and / or ammonium derivatives of the formula

IV ç2h4ch r1conh (ch2) 2n + -ch2z

R 3 2 35

(B) from about 0.1% to about 16% by weight of a second amphoteric surfactant selected from the group consisting of: aminoalkanoates of the formula II R 1 NH (CH 2) n CO 2 M n >

iminodialcanoates of formula III

15 III,

Mod. 71 · 20,000 βχ. - 90/08 20

Compounds thereof, wherein n and n are 1 to 4, and M are independently selected from the specific groups in (a) above; (c) optionally up to about 10% anionic surfactant; and (d) water; wherein the cleaning composition has a total surfactant concentration of from about 0.2% to about 20% by weight, and wherein the combined concentration of the first and second amphoteric surfactants comprises at least one or more surfactants, 20% by weight of the total concentration of surfactant. The concentrations and proportions included herein are in relation to the weight of the cleaning composition, unless otherwise specified. The invention relates to a foam-producing cleaning product having superior foam characteristics (softness, abundance ·, Stability), combined with excellent softness. stability, cleaning ability and germicidal action. In one aspect of the invention, the cleaner comprises a cleaning composition in the form of an aqueous liquid, including a defined blend of amphoteric surfactants embedded within a so-called "compression foam" container - a compressible distributor equipped with a distributor head and mixing means 4 35 63307

Case: CM330M

10 Ο 15

Mod. 71 20,000 βχ. - from the liquid / air stream, from which the cleaning composition can be easily dispensed as aqueous foam by compression. The essential and optional aspects of the product, according to this aspect of the invention, are set forth below.

Cleaning compositions herein preferred for use include the blending of two amphoteric surfactants, a first amphoteric surfactant being selected from the imidazolium surfactants of formula I

in which is Cy-C22 alkyl or alkenyl, R6 is hydrogen or CH3 Z2. independently, CO2M or CH2CO2M, and M is H, alkali metal, alkaline earth metal; and / or ammonium derivatives of the formula IV ?????????????????????????? . R2 30

wherein R 2, R 2 and Z are as defined above, and the surfactant is selected from: aminoalkanoates of the formula II

II

R1NH (CH2) nCO2M

iminodialkanoates of the formula III, wherein n is 1 to 4, and 5, 35, 5,

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Mod. 71-20,000 ex. 90j0B 20

30

63307 Case: CM330M

R1 and M are independently selected from the groups specified above. The cleaning compositions for the use herein may also include other components of surfactants, preferably soft, especially anionic surfactants. However, preferred herein are those compositions wherein the combined concentration of the first and second amphoteric surfactants is at least about 20%, and preferably at least about 50%, by weight of the concentration of surfactant, such as is desirable in order to obtain optimum foam characteristics. In preferred compositions the blend of the first and second amphoteric surfactants comprises at least about 60%, preferably at least about 75%, by weight of the total surfactant. Surfactants Suitable first amphoteric acids are marketed under the trade name of Miranol, and are considered to include a complex mixture of species. Traditionally, the Miraiiols have been described as having the general formula (1), although the CTFA Cosmetic Ingredient Dictionary, = -third edition, indicates the non-cyclic structure IV. In practice, it is likely that there is a complex mixture of cyclic and non - cyclic species, so that both definitions are given here, so as to predict all the hypotheses. .. ·.

Examples of amphoteric surfactants suitable for use as the first amphoteric surfactant. include compounds of formula I and / or IV, wherein R 1 is C 1 -R 3 (especially iso-capryl), CE ^ g g. and C 11 H 23 alkyl, especially preferred are the compounds wherein R 5 is C 9 H 12, Z is CO 2 M and R 2 is H; and compounds in which R é is CH₂₂N₂₂ and Z is CO₂M and R₂ is CH₂CO₂M. It is to be understood that a number of amphoteric surfactants of this type, available on the market, are manufactured and sold in the form of complexes with active agents.

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U 25 30

63307 Case: CM330M

anionic surfactants, especially those of sulfated C 8 -C 18 alcohol, ethoxylated C 18 -C 18 alcohol, or types of C 8 -C 20 glycerol acyl. For this reason, and in one aspect of the invention, the compositions include a premix or complex of the first amphoteric surfactant and anionic surfactant in an equivalent ratio of about 1: 1, to provide a approximate electroneutrality. Examples of suitable amphoteric surfactants for use as the second amphoteric surfactant include salts, especially the triethanolammonium salts and N-lauryl-beta-amino propionic acid salts and N-lauryl-imino- dipropionic acid. The cleaning compositions preferably contain from about 0.5% to about 10% by weight or more preferably from about 0.5% to about 4% by weight of each of the first and second surfactants amphoteric actives. The weight ratio of the first amphoteric surfactant: amphoteric surfactant is preferably from about 10: 1 to about 1:10, or, more preferably, from about 5: 1 to about about 1: 5, and especially from about 3: 1 to about 1: 3. The compositions of the invention may include or be supplemented by other surfactants which are not. -acetyl surfactants as specified above. However, the total level of active agent in these compositions should generally range from about 0.2% to about 20% by weight, or preferably from about 1% to about 16%. %, or more preferably, from about 1% to about 8%, and especially from about 2% to about 6% by weight. It is characteristic of the products of the invention that they ensure excellent foam stability and creaminess even at low levels of cleansing surfactant. An optional preferred surfactant in these compositions is an anionic surfactant. This should preferably be present at a level of about 7 35 63307

Case: CM330M

0.1 to 10%, or better still, between about 0.5 and 5% and especially between about 1% and 3% by weight. Alkyl sulfates, the preferred anionic surfactants to be included herein, and other than the abovementioned alkyl sulfates, alkyl ethoxylate sulfates and acyl glyceride sulfates, are the condensation products of fatty acids of proteins, spent proteins or amino acids or compounds of such condensation products. In highly preferred embodiments the condensation products of fatty acids are selected from: (i) condensation products of fatty acids C--C & &g; preferably 18% with hydrolyzed Proteins; (ii) fatty acid sarcosinates derived from C6-C22 fatty acids > " preferably cqo-cqg; and (iii) compounds thereof.

Other suitable mild synthetic detergent surfactants useful in cleaning compositions include acyl methyl taurates; fatty acyl glycinates; glutamate N-acyl; alkyl glycosides; alkyl glycerides and glyceride ethoxylates; acyl isethionates; alkyl sulfosuccinates; alpha-sulfonated fatty acids, their salts and / or esters; alkyl phosphate esters; ethoxylated alkyl phosphate esters; alkyl ether sulfates; glucose esters and alkylated esters, for example glucose methyl esters; " mixtures of alkyl ether sulfates and aminealkyl oxides; "hetaines;sultaines; and the like of them. Included in the surfactants are the alkyl ether sulfates having up to 12 ethoxy groups, especially sodium and ammonium lauryl ether sulfates. The prizes of | alkyl and / or acyl chains. For these surfactants they are preferably C 18 -C 18 alkyl,

Sufficient synthetic detergent surfactants of these types include: C8 -C18 monoalkyl phosphate salts preferably at least partially in the form of their polyalkanol; for example, salts Ν, Ν, Ν ', N'-tetraethanol- (ethylenediamine) (Quadrol); 8 63307

Case: CM330M

N - (Câ, -Câ, ") fatty acid glutamates; fatty acyl glycinates C 8 -C 8 and / or their compounds with additional anionic synthetic detergent surfactant, and / or compounds thereof.

The compositions of the invention should also preferably contain a polymeric thickener at a level of from about 0.01% to about 5%, or preferably from about 0.04% to about 2%, and especially from about 0.05% at about 1%. The polymeric thickener has a significant role in enhancing the creaminess and quality of the foam without adversely affecting the dispensing characteristics of the product.

In general, the useful polymers should be either soluble or dispersible in water at a level that increases the viscosity of the corresponding polymer free composition to about 1 cps, and preferably about 2 to about 10 cps, or, more preferably, from about 2 to about 5 cps at 70Â ° F (21.2Â ° C). Suitable polymers are materials of high molecular weight (average molecular weight determined, for example, by light scattering), generally being from about 2000 to about 3,000,000, preferably from about 5,000 to about 1 000,000, and most preferably from about 7000 to about 1,000,000. Since the polymers apparently act to increase the viscosity of the compositions, the polymers preferably have a capacity of at least about 50% by weight. thickener. such that a 1% dispersion of the polymer in water at 70Â ° C (21.2Â ° C), exceeds about 1 centimeter, preferably about 2 centipoises. -

Useful polymers are the cationic, nonionic, amphoteric and anionic polymers useful in the field of cosmetics. Preferred are the cationic and nonionic polymers used in the cosmetic field as conditioning agents for hair or skin.

Representative classes of polymeric hair or skin conditioning agents include cationic and nonionic polysaccharides; cationic and nonionic homopolymers. 10

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Mod. 71-20,000 βχ. - 90/08 20

25 30 35

63307 Case: CM330M

and copolymers derived from acrylic and / or methacrylic acid; cationic and non-ionic cellulose resins; cationic copolymers of dimethyl ammonium chloride and acrylic acid; cationic homopolymers of dimethylodialiammonium chloride; cationic polyalkylene and imines ethoxypolyalkylene; silicones. quaternaries and compounds thereof. By way of example, preferred conditioning cationic polymeric agents to be used herein include cationic guar gums, such as guar gum ammonium trimethyl hydroxypropyl (ds of 0.11 to 0.22) available commercially under the trade names Jaguar C-14-S ( RTM) and Jaguar C-17 (RTM), and also Jaguar C-16 (RTM), which contains hydroxypropyl substituents (ds of about 0.8 - 1.1) in addition to the above specified cationic groups, and quaternary cellulose ethers, available commercially under the trade names of Ucare Polymer JR and Celquat. Other suitable cationic polymers are the homopolymers of dimethylformiammonium chloride commercially available under the trade name Merquat 100, dimethyl aminoethyl methacrylate and acrylamide copolymers, dimethyldialiammonium chloride and acrylamide copolymers commercially available under the trade names of Merquat 550 and Merquat S, quaternary vinyl pyrrolidone acrylate or amino alcohol methacrylate copolymers. commercially available under the trade name Gafquat, and polyalkyleneimides, such as polyethylenemine and ethoxylated polyethyleneimine. Other suitable polymers for use herein include hydroxyethyl cellulose (for example, Natrosol 250MXR, Natrpsol 250HHR) xanthan gum (for example * Keltrol ™); polymers of saccharides or oligogosaccharides with compatible synthetic monomers; quaternary polycarboxylates; polyethylene glycol mono- and di-esters / ethers of polyethylene glycol (for example, polyethylene glycol distearate [20-500].

63307 Case: CM330M

1

5 10 15

Mod. 71-20,000 ex. · 90/08 20 o 25 30 include a hair or skin humidifier. The preferred level of humidifier is from about 3% to about 40% by weight. In preferred embodiments, the humidifier is non-occlusive and is selected from: 1. water-soluble liquid polyols; 2. Essential amino acid compound that occurs naturally in the stratum corneum of the skin; and 3. non-water soluble non-occlusive polyol, and compounds thereof. Some examples of preferred non-occlusive humidifiers are glycerine, polyethylene glycol, propylene glycol, sorbitol, polyethylene glycol and glycol methyl propylene glycol ethers (e.g., methyl glucan-20), polyethylene glycol and propylene glycol ethers of lanolin alcohol (e.g., Solulan-75), carboxylic acid pyrrolidone sodium, lactic acid, urea, β-proline, guanidine, pyrrolidone and compounds thereof. From the above, glycerin is highly preferred. Examples of other water soluble non-occlusive humidifiers include water-soluble hexadecyl, myristyl, isopropyl or isoduyl esters of adipic, lactic, oleic, stearic, -isostearic, myristic or linoleic acids, as well as many " their corresponding alcohol esters. (sodium isostearoli-2-lactylate, sodium capryl lactylate), hydrolyzed protein. and others, proteins derived from collagen, gel-aloe and e. acetamide ME A. ·. Another important aspect of the invention is the surprising discovery that the effectiveness of the cleaning compositions which have incorporated a functional component as an antibactericidal or germicidal agent is substantially increased. by incorporating the cleaning composition into a foam cleaning gas pack. In particular, the functional components are essentially insoluble in water, but are solubilized in the cleaning composition, preferably in the form of an isotropic micellar solution,

63307 Case: CM330M

have demonstrated superior surface deposition and substantivity characteristics and improved efficacy. Thus, according to a second aspect of the invention, there is provided a personal cleaning composition packaged in a compressible foam production vessel, wherein the composition comprises from about 0.5% to about 16% of a surfactant (synthetic, soap or compounds thereof), and from about 0.01% to about 5%, preferably from about 0.1% to about 4%, by weight, of a functional, preferably soluble, component in water, such as an antibacterial agent. Antibactericidal agents suitable for use herein include 3,4-di- and 3,4,4,5-tribromosalicylanilines, 4,4'-dichloro-3- (trifluoromethyl) carbanilide, 3,4,4-trichlorocarbanilide, Phenoxypropanol, chlorhexidine salts, hexamidine salts, 2 ', 4,4'-trichloro-2-hydroxy-diphenyl ether (Trichlosan), 2,2'-methylene bis (4-chloro-6-bromophenol) , salicylic acid, parachlorometaxylenol, 1-hydroxy-4-methyl-6- (2,4,4-trimethylpentyl) -2- (1H) pyridone salts (Octopirox) and compounds thereof. In the case of water-soluble antibactericidal agents, a solubilizer (for example, glycol propene) should also be added at a level of about 0.1% to about 5% by weight. A number of optional materials may be added. additional information. compositions; Such materials include proteins and polypeptides derived therefrom; water-soluble preservatives, such as Ger-mall 115, methyl, ethyl, propyl and butyl esters of hydroxybenzoic acid, EDTA, Euxil (RTM) K400, Bronopol (2-bromo- 2-nitropropane-1,3-diol) protruding humectants, such as hilaric acid, ellthin. and sodium starch graft polyacrylates, such as Sanwet (RTM) IM-1000, IM-1500 and IM-2500, available from Celanese Superabsorbent Materials, Portsmith, VA, USA and described in US-A-4 076 663; solvents, such as hexylene glycol and propylene glycol; low-temperature phase modifiers, such as 12 35 1 5 10

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Mod. 71-20,000 ex. - 5Ό / 08 20

30

63307 Case: CM330M

ammonium ion (e.g., ΝΗ,, ΟΙ); coloring agents; perfumes, perfume solubilizers, etc. Conventional nonionic emollients may be included as additional skin conditioning agents at levels up to about 10%, preferably about 1% to about 6%. Such materials include, for example, mineral oils, fatty sorbitan esters (see US-A-3 988 255, to Seiden, published October 26, 1976), lanolin and lanolin derivatives, esters such as isopropyl myristate and triglycerides such as coconut oil. The water is also present at a level of about 60% to about 99%, preferably at least about 75%, by weight of these compositions. The pH of the compositions is preferably from about 4 to about 9, or more preferably, from about 4.5 to about 8.5, the pH being controlled, for example, with the use of a citrate sweetener system. The present compositions of. are packaged in a non-aerosol, compressible, so-called "foam-by-compression" type dispenser,. which includes a reservoir, a dispensing head, liquid / air mixing means, and preferably, hydrogenation media and non-reversing valve devices. The packaging. of foam per composition are well known, as exemplified by the following patents: US-A-3 709 437 (Wright, issued January 9, 1973); US-A-3 937 364 (Wright, issued February 10, 1976); US-A-022 351 (Wright, issued May 10, 1977); US-A-4747306 (Bennett, issued April 3, 1979); US-A-4184 615 (Wright, issued January 22, 1980); US-A-4 598 862 (Rice, issued July 8, 1986); US-A-4 615 467 (Grogan et al., Issued Oct. 7, 1986 and FR-A-2 604 622 (Verlhulst, published April 8, 1988) The above packages do not use any propellant and are therefore, safe for the consumer and the environment. The cleaning composition is placed in the reservoir 13 35

1 5 10 0 15

Mod. 71-20,000 ex. - 90 (08 20

30 of the container which may, for example, be in the form of a compressible plastic bottle. Squeezing the reservoir of the container with the hand forces the composition to pass through the liquid / air mixing device where the composition is mixed and then preferably through a home-genetizing device which makes the foam more homogeneous and controls to its "consistency. The foam is then distributed as a uniform, non-pressurized and gaseous foam through the distributor head of the dispenser. The minimum force for activating foamable compressible device is about 1 psig, preferably about 2 psig to about 15 psig. The minimum force is related to the size of the channels in the dispenser, the viscosity of the composition, etc. In general, the density of the foam should be between about 0.002 and about 0-25 g / cc, or, preferably, from about 0.01 to about 0.07 g / cc. The density of the foam is inversely related to its creaminess, as lower densities are preferred. The invention is illustrated by the following non-limiting examples. In all examples, all concentrations are found. on an active basis of 100% and the abbreviations have the following designation: Amphoter A Miranol MSA Modified - the amphoter of the formula - I and / or IV, where R-j. and Z is CHâ,ƒNHâ,, the amphoter being added as an equimolar complex. sodium lauryl sulphate, | . Ampholyte Bs Miranol 2MCA Modified - the amphoteric of the formula; I and / or IV, wherein R1 is C1-4 alkyl, R2 is CH2 CO2 Na, and Z is CO2 Na, the amphoter being added as an equimolar complex with sodium lauryl sulfate. Amphoteric C Propionate amino-beta-N-lauryl sodium Amphoteric D Iminodipropionate-beta-N-lauryl sodium 14 35

Polymer 1 Hydroxyethyl cellulose gum (HEC) [Natrosol 250HR] 5 10

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Mod. 71-20,000 ex. - 90/08

30

Molecular weight of about 1,000,000.

Polymer 2 Quaternary cellulose ether (Polymer JR 400) Anionic 1 Hydrolysed animal protein of coconut potassium. Anionic 2 Sarcosinate fatty acid palm kernel oil. Euxil K400 Preservative

Distributor Compression skimmer, manufactured by Kunstoff Supermatic, consistinderem:. 1. 150 ml LDPE / HDPE round bottle 2. standard push-pull, off-on1 'distribution head 3.' White 'mixing chamber. 4. Long dry tube with 11.5 mm, with 2.00 mm diameter. EXAMPLES I to V I II III IV V Amphoter A -; - 1.1 - 2.8 Amphoteric B 2.8. 0.9 '- 0.5 - Amphoteric C - - 1.1 - - Amphoteric D 2.8. 1 - . . - - 0.4 2.8 Anionic 1 - 2.7 - - - Anionic 2. i -. Polymer 1 0.12 -. 0.1 0.26 - Polymer 2 - · · · ·. 0.3 Glycerol 5 - · 5 - 5 Glycol · hexylene 0.6 - 0.2 0.4 0.1 0.6 EDTA 0.1 0.1 0.1 0.1 0.1 Preservative 0.2 0.2. 0.2 0.2 0.2 Water --- up to 100 ·

The products of the juicer are made by conventional liquid mixing and filling processes. The viscosities of the cleaning compositions of examples I to V (Brookfield, LVT, UL adapter, 70 ° F,

Claims (2)

63307 Case: CM330M corrected axis value 60 r.p.m.) are between 1 and 10 cps (correction factor 60 r.p.m. is [[axis reading - 0.4jx 0.1]). The products feature improved foam characteristics (creosities, abundance, stability) in conjunction with excellent cleaning and softness characteristics. EXAMPLES VI TO VIII VI VII VIII 10 Amphoteric A - - 1.1 Amphoteric B 0.6 0.8 - Amphoteric C - - 1.1 / Amphoteric D 1 * 7 1.5 Anionic 1 2 - 15 Anionic 2 - 1 - Polymer 1 0.1 - 0.1 Glycerol 12 8 5 Chloride ammonium 1.0 - 1.0. 1.0 hexylene glycol 0.6. ... 0.2 0.4 20 Glycol propene '3.0 4.0 2.5 EDTA 0.1 0.1 0.1 Triclosan 0.3 0.4, -. :: 0.2 r, / * | The viscosities of the cleaning compositions of Examples VI to VIII (Brookfield LVT, adapter: UL, 70 ° E, axle speed 60 rpm corrected) are between 1 and 10 cps (correction factor 60 rpm is [axis reading - 0.41 x 0.1]). • The products have improved foam characteristics (creaminess, abundance stability) along with excellent cleaning characteristics, antibacterial action and softness. R E S I I I I I I I I I I I I I I I I I I I I! A process for the preparation of a composition 63307 Case: CM330M 5 comprising a non-aerosol compressible dispenser equipped with a reservoir, dispensing head and liquid / air mixing means, characterized in that it comprises: a) from about 0.1% to about of 16% by weight of a first amphoteric surfactant selected from imidazoline derivatives of the formula I C2H40R2 10/15 Mod. 71-20,000 ex. - 90/08 20 In which R 2 is hydrogen or CH 2 Z, each Z is independently CO 2 M or CH 2 CH 2, and M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium, nio; and / or ammonium derivatives: of formula IV. â € ƒâ € ƒâ € ƒwherein R1, R2 and Z are as defined above; b) from about 0.1% to about 16% by weight of a second amphoteric surfactant selected from aminoalkoates of the formula II II ## STR3 ## Ί iminodialcanoates of formula III 10 15 * O O 2 20 And mixtures thereof, wherein n is 1 to 4, and M is independently selected from the groups specified in (a) above; c) optionally up to about 10% anionic surfactant; and (d) water having said cleaning composition having a total surfactant concentration of from about 0.2% to about 20% by weight and wherein the combined concentration of the first and second amphoteric surfactants comprises at least 20 % by weight of the total surfactant concentration. 2-. 2. A composition according to claim 1, wherein the mixture of the first and second amphoteric surfactants comprises at least about 50%, preferably at least about 60%, and preferably at least about 50%. less about 75% by weight of the total surfactant. 3ã. 2. A process according to claim 1 or 2, wherein the total surfactant concentration is 1%. and-about, .16%, of.preference. from about 1% to about 8% and: preferably from: about 2% to about 6% by weight of the cleaning composition. 4§. A method according to any one of claims 1 to 3, characterized in that it comprises from about 0.5% to about 10%, preferably from about 0.5% to about 4%. each of the first or second amphoteric surfactants, by weight of the cleaning composition. • 5§. 11. A process according to any one of claims 1 to 4, wherein the weight ratio of the first amphoteric surfactant: second amphoteric surfactant is from about 10: 1 to about 1:10, preferably from about 5: 1 to about 1: 5, preferably 18: 5: 1 to about 3: 1 to about 1: 3. 6§. A process according to any one of claims 1 to 5, characterized in that it additionally comprises from about 0.1% to about 10%, preferably from about 0.5% to about 5%, preferably from about 1% to 3% anionic surfactant by weight of the cleaning composition. 7§. 6. A process according to claim 6, characterized in that it includes a premix or a complement of the first amphoteric surfactant and an anionic surfactant in an equivalent ratio of about 1: 1. 15 20 25 30 8§. 6. A process as claimed in claim 6, wherein the anionic surfactant is a fatty acid condensation product of a protein, a degraded protein or amino acid or a mixture of said condensation products of fatty acids . 9a. 6. A process according to claim 8, wherein the fatty acid condensation product is selected from (i) condensation products of C --C₂₂, preferably fatty acids with hydrolysed proteins, (ii) fatty acid sarcosinates derived from C8-C22, preferably C19-6 g of fatty acids, and (iii) mixtures thereof. 10-. 5. A process according to any one of claims 1 to 9 wherein the cleaning composition has a viscosity of not more than 50 cps, preferably not more than 20 cps. 115. A process according to claim 10 wherein the cleaning composition has a viscosity of about 2 to about 15, preferably about 2 to about 12, and preferably about 4 to about 12 cps . 12. A process as claimed in any one of claims 1 to 11, characterized in that it comprises about 40% preferably from about 0.04% to about 2%, and preferably from about 0.05% to 1% polymer thickening substrate, by weight of the cleaning composition. 13§. 5. A composition according to any one of claims 1 to 12, wherein the aqueous cleaning composition comprises from about 3% to about 40% of a hair or skin humidifier. 14ã. 3. A method according to claim 13, wherein the humidifier is non-occlusive and is selected from: 1. water-soluble liquid polyols; 2. naturally occurring essential amino acid compounds found in the stratum corneum of the skin; and 3. non-occlusives of water-soluble non-polyols and mixtures thereof. A process according to claim 14, wherein the humidifier is selected from glycerol, polyethylene glycol, propylene glycol, sorbitol, polyethylene glycol and propylene glycol methyl glucose ethers, polyethylene glycol ethers and propylene glycol alcohol lanolin, sodium pyrrolidonecarboxylic acid, lactic acid, L-proline and mixtures thereof. 16®. 5. A process according to claim 15, wherein the humidifier is glycerin. 17ã. A process according to claim 12, characterized in that a hair conditioning agent or polymeric skin is preferably selected from cationic and nonionic polysaccharides; homopolymers of cationic and nonionic homopolymers and copolymers derived from. acrylic and / or methacrylic acid; cationic and non-ionic cellulose resins; cationic copolymers of dimethyldiallylammonium chloride and acrylic acid; cationic homopolymers of dimethyldiallyl ammonium chloride; cationic polyalkylene and ethoxy-poly-alkylene imines; quaternary silicones, and mixtures thereof. 18§. - Method according to any of claims 20 to 35. Mod. 71-20,000 ex. The composition according to any one of claims 1 to 17, further comprising: from about 0.01% to about 5%, preferably from about 0.1% to about 4% by weight of an anti-bacterial agent: " 1. 5 10 / 15-19®. 2. A process according to claim 18, wherein the antibacterial agent is selected from 3,4-di and 3,4 ', 5-tribromosalicylanilides, 4,4'-dichloro-3- (trifluoromethyl) .1) carbanilide, 3,4,4'-trichloro-2-hydroxyphenyl (trichlosan), 2, 4 ', 4', 4'-trichloro-2-hydroxyphenyl 21-methylene bis (4-chloro-6-bromophenol), salicylic acid, parachlorometaxylenol, 1-hydroxy-4-methyl-6-2- (2,4,4-trimethylpentyl) -2- (1H ) -pyridone (Octo pyrox) and mixtures thereof. Declares that it interlaced " foam " and " active "; and Lisbon, 1991 By THE PROCTER & GAMBLE C0MPANY 0 0EICIAL AGENT 20 O 25 30 VASCO MASQUES UEITt Agent of the Industrial Property Registry of Cencelei,