CN101951869A

CN101951869A - Shampoo

Info

Publication number: CN101951869A
Application number: CN2008801118200A
Authority: CN
Inventors: J·霍金斯
Original assignee: CHARTERED BRANDS Ltd
Current assignee: CHARTERED BRANDS Ltd
Priority date: 2007-09-15
Filing date: 2008-09-15
Publication date: 2011-01-19
Also published as: WO2009034360A2; WO2009034360A3; EP2200568A2

Abstract

A shampoo suspending medium comprises: A. a higher HLB surfactant with an HLB greater than 37, such as alkyl ether sulphate; B. a surfactant with an HLB lower than 30, in a proportion to the higher HLB surfactant sufficient to provide a total surfactant with a mean HLB between 13 and 37; and C. sufficient of a carbohydrate and/or electrolyte structurant to form a stable system. The composition is capable of suspending selenium sulphide or cationic surfactants. Mica can be co-suspended with selenium sulphide in an anti-dandruff shampoo to provide a more homogeneous looking composition.

Description

Shampoo

The present invention relates to have structuring (structured) the aqueous shampoo of suspension character.There is the problem that must not solve for a long time in preparation water-insoluble or microsolubility solid and/or the liquid suspended substance in the aqueous shampoo.

Formulator needs to suspend multiple such composition.For example, widely used have oil, dandruff removing agent such as selenium sulfide (selenium sulphide), hair care agent to comprise cationic polymer, and opacifier such as Muscovitum.Therefore they need be dispersed in the aqueous shampoo.Also wish to comprise high foaminess in the aqueous shampoo and to the anion and/or the amphoteric surfactant of skin gentleness, as alkyl ether sulfate or betanin.

Cation type polymer such as chlorination gather (diallyl dimethyl ammonium), and---hereinafter referred to as " polyquaternary ammonium salt "---is widely used as the agent of taking care of hair.Therefore they need be dispersed in the aqueous shampoo.But cation type polymer is easy to interact with anion or amphoteric surfactant.Formulator has serious problems aspect the stable homogeneous dispersion they being scattered in the shampoo reactive systems to form.

Selenium sulfide is widely used as dandruff removing agent, but has formulation problems.It is a kind of big density water insoluble solid, has intensive, tedious orange-yellow.Selenium sulfide is retained in the suspended substance, needs to use polymeric viscosifier usually.Also advise selenium sulfide is suspended in the structured surfactant system.But because its high density, regular meeting observes certain sedimentation.Even the most effective suspension system can not be avoided the heterogeneity outward appearance.

We have found new structured surfactant suspension system, it is by using the shampoo surfactant of the dense stable foam can obtain having good wettability and sense of touch, can stably suspend cationic polymer and big density granule such as selenium sulfide, and not sedimentation.

Term used herein " structuring system " is meant that a kind of comprise water, surfactant, arbitrary structures agent (structurant)---may need it to give surfactant suspension character---and the dumpable compositions of optional other solutees, it forms the dispersion of intermediate phase in intermediate phase or the continuous aqueous medium together, and when system is static, it can fix non-colloidal state water-insoluble granule, thereby forms a kind of stable dumpable suspended substance.

People have done a lot of trials with the color of covering the selenium sulfide suspended substance and the outward appearance of solidifying.For example extensive product sold load has the titanium dioxide and the blue pigment of higher level.This method only is the part success, and above-mentioned to cover any in the additive be not to want especially in the shampoo.Additive method such as fine grinding and use pearling agent (as glycol stearate) have proved unsuccessful.

Up to the present, unique successful methods of market-oriented selenium sulfide shampoo is to use opaque bottle, so that at least from sale view, the shortage of aesthstic attractive force is not obvious.

We find that the system of the selenium sulfide that can suspend can suspend Muscovitum jointly to form the symmetric suspension of attractive outward appearance.

We find in the selenium sulfide suspended substance, to add Muscovitum not only the utmost point covered the outward appearance of sulfide effectively, also given attractive pearly luster.In addition, Muscovitum can be colored to match with different natural hair color, makes it become extremely desirable composition.

As long as context allows, " Muscovitum " used herein broadly comprises natural mica, artificial coating Muscovitum, and synthetic Muscovitum shape pearly-lustre mineral sheet such as boron sikicate aluminum calcium---it can be by coating to obtain and coating Muscovitum similar effects.

Muscovitum is one of the known multiple laminar solid that can give the liquid pearlescent appearance, but in fact its application in aqueous formulation is restricted, because similar with selenium sulfide, it is difficult to suspend.Therefore, the pearl shining shampoo agent is usually with preparing from the glycol stearate that suspends.

---wherein all being difficult to separately suspend separately to form symmetric suspension---can suspend the visual effect that is significantly improved in this way jointly beat allly especially to be selenium sulfide and Muscovitum.

For solving, usually or use natural gum or other polymeric viscosifiers, perhaps form colloidal dispersion to improve the viscosity of liquid medium with the problem of water-insoluble dispersion of materials in water.

The natural gum of raising liquid medium viscosity and polymeric viscosifier postpone but can not prevent sedimentation, make the more difficult outflow of compositions simultaneously.It can not provide stable suspended substance.

Colloidal suspension comprises about 1 micron or littler granule, and Brownian movement can prevent described particles settling.This type of system obviously can not decentralized photo to than coarse granule.They can complete stability yet, because because cohesion and Ostwald (Ostwald) ripening, dispersed particles can be grown up, and are excessive and can not be retained in the suspended substance up to them.

A kind of alternative method of above-mentioned suspension process is to use a kind of structuring suspension system.Structuring suspension system is according to the rheological equationm of state immobilized particles of suspension media, and no matter large or small.This requires suspension media to have a yield point, and it is higher than sedimentation or emulsifying ability that particle applies, but enough low so that medium externally stress application---as topple over and stir---mobile as normal liquid down.In case the stirring that is caused by external stress stops, described structure enough promptly forms to prevent sedimentation again.

The structuring system of three kinds of main types has been used for practice, includes a L _α-phase, wherein the dual layer arrangement of surfactant is that the hydrophobic part of molecule is positioned at inside, and hydrophilic segment is positioned at double-deck outside (perhaps opposite).Described bilayer is arranged side by side, for example with parallel or concentric configuration, is separated by water layer sometimes.L _α-phase (being also referred to as the G-phase) can be determined by its feature structure and/or X-ray diffraction by can detecting thin layer symmetry evidence usually under polarizing microscope usually.This type of evidence can comprise that d-spacing (2 π/Q, wherein Q is the momentum transfer vector) is the one-level of simple integer than 1: 2: 3, secondary and three grades of peaks sometimes.The symmetry of other types obtains the non-integer ratio.The d-spacing at one-level peak is corresponding to the repetition interval of double-deck system in the series.When mixing with certain special ratios with water, most surfaces activating agent or at room temperature or under certain higher temperature form L _α-phase.But this conventional L _α-do not have the effect of structuring suspension system mutually usually.Relatively large solid makes it not dumpable, and is easy to sedimentation in a small amount.

Employed main type structure system based on dispersive lamelliform, pelletiod and expansible lamelliform mutually in the reality.Dispersive lamelliform is two-phase system mutually, thereby wherein the bilayer of surfactant is arranged formation L with parallel plate _αThe territory of-phase, it scatters the water mutual-assistance to form opaque gel system.It is recorded among the EP 0 086 614.

Pelletiod comprises the spheroid of clear in structure mutually, is commonly referred to spherolite (spherulite) in the art, and wherein the surfactant bilayer is arranged with concentric shell.The diameter of common described spherolite and is scattered in aqueous phase with traditional Emulsion form in 0.1 to 15 micron scope, but interacts and form a kind of structuring system.The pelletiod system has carried out describing in more detail in EP 0 151 884.The a lot of centres of structuring system between dispersive lamelliform and pelletiod, two types structure all is contained in wherein.Usually the system that has more pelletiod features is preferred, because they tend to have lower viscosity.A distortion of pelletiod system is called as the prolate or the rhabodoid of big vertical bar (batonette) when including.It is too sticking usually and be not subjected to actual concern.

Two kinds of above-mentioned systems all comprise biphase.Its stability depends on the existence of the abundant decentralized photo of filling this system, thereby prevents to separate by the interaction between spherolite or other the dispersive middle phase regions.If the quantity not sufficient of decentralized photo, for example because do not have the surfactant of capacity or can not form enough intermediate phase because surfactant is soluble in water very much, described system will take place to separate and can not be used for suspended solid.This type of Unstable Systems is for the purpose of this description and Yan Bushi " structurized ".

The structuring system of the third type comprises expansible L _α-phase.It is that with the different of other structuring systems of two types it is single phase substantially, with conventional L _αThe difference of-phase is that it has wideer d-spacing.Conventional L _αThe d-spacing of-phase---it comprises the surfactant of 60 to 75 weight % usually---is about 4 to 7 nanometers.Attempt solid suspension can be formed stiff paste in this type of in mutually described stiff paste or not dumpable or unsettled, perhaps neither dumpable unstable again.When electrolyte is formed common L just to be lower than _αWhen-the concentration that needs mutually adds aqueous tenside, when particularly adding the surfactant of H-phase, form the expansible L of d-spacing (for example 10 to 15) nanometer greater than 8 _α-phase.

Described H-comprises the surfactant molecule of the cylindric bar that is arranged in indefinite length mutually.Under polarizing microscope, it shows hexagonal symmetry and particular structure.The viscosity of typical H-phase is very high, makes it seem to be the curdy solid.H-phase (L near concentration limit ₁/ H-phase boundary) can be dumpable, but have high viscosity and usually be muciform outward appearance.When adding the electrolyte of capacity, this type of system forms expansible L especially easily _α-phase.

Expansible L _α-be recorded in further detail among the EP 0 530 708 mutually.When not having float, they are normally translucent, are different from that dispersive lamelliform or pelletiod phase---it is normally opaque.They are optically anisotropic, have the dependency of shearing viscosity.They are different from L in this ₁-phase---it is micellar solution or micro emulsion.L ₁-be limpid, optically isotropic mutually, be Newtonian fluid (Newtonian) usually substantially.They are non-structured, can not suspended solid.

Partial L ₁-having the small-angle x-ray diffraction spectra mutually, it has shown the symmetric evidence of hexagonal and/or has shown shearing dependency viscosity.This type of has near L mutually usually ₁The concentration of/H-phase boundary can form expansible L when adding electrolyte _α-phase.Yet, do not carry out any this type of electrolyte when adding, they can lack provides suspension character needed yield point, is not " the structuring system " that is used for the purpose of this description therefore.

The expansible L of the above-mentioned type _α-sane not as the pelletiod system usually mutually.They easily become unstable at low temperatures.In addition, they often show relatively low yield stress, but it may limit the particulate full-size of stable suspersion.

Except that surfactant and water, need there be a kind of structural agent in most of structured surfactants, to form the structuring system of energy suspended solid.This paper uses term " structural agent " to describe when soluble in water, can interact to form or to strengthen any non-surface-active agent of (for example, improving yield point) structuring system with surfactant.Its normally a kind of surfactant subtracts solvent (surfactant-desolubiliser), for example electrolyte.Yet surfactant that some is hydrophobic relatively such as alkyl benzene sulphonate 2-aminopropane. can not form spherolite in water when having electrolyte.This type of surfactant can be when not having any structure agent suspended solid, as describing among the EP 0 414 549.

Known carbohydrate can interact with surfactant and form suspension structure from WO 01/05932.This type of system has even usually than electrolyte structure expansion L _αThe d-spacing of-Xiang Gengda is described among the EP 0 5,307 08.The d-spacing of the sugared structuring system of describing among the WO 01/05932 for example can be up to 50nm usually greater than 15nm.This type of system can obtain with transparent or semitransparent form by suitable option table surface-active agent and carbohydrate concentration.

Present obtainable structured surfactant system can not have the foam characteristics to enough suspending powers of particle such as selenium sulfide or cationic polymer and shampoo needs simultaneously.

The invention provides a kind of new aqueous suspension system, it comprises:

A. a HLB is greater than 37 anion, nonionic or amphoteric surfactant;

B. a kind of HLB that is enough to be provided at the average HLB between 13 and 36.5 is lower than 30 anion, both sexes or non-ionic surface active agent; With

C. be enough to form a kind of carbohydrate and/or electrolyte of structuring suspension system.

According to another embodiment, the invention provides a kind of shampoo that comprises dandruff removing agent particle (as selenium sulfide) and/or cationic polymer particle.

The present invention also provides Muscovitum to be used to improve the purposes of the outward appearance of aqueous selenium sulfide suspended substance.Preferably use a kind of metal-oxide or silicon dioxide coating Muscovitum.

According to the 4th kind of embodiment, the invention provides a kind of antidandruff shampoo, it comprises a kind of aqueous suspension medium that is used for selenium sulfide and wherein is suspended with the effective dose selenium sulfide, Its Be characterised in thatDescribed suspension media also comprises the suspension Muscovitum of capacity so that a kind of product of more uniform outer appearance to be provided.

The preferred above-mentioned aqueous suspension medium that is used for selenium sulfide comprises the electrolyte of a kind of surfactant and capacity or carbohydrate structure agent to form a kind of structured surfactant suspension system.

According to the 5th kind of embodiment, the invention provides a kind of limpid, transparent vessel that comprises above-mentioned antidandruff shampoo.

Following to argumentation of the present invention in, unless point out in addition, the substitution value of upper and lower bound of the allowed band of a parameter is disclosed, and indicate one of described value more preferably than another value, should be understood that also implicit and point out that each intermediate value between this preferred and less preferred value in described substitution value itself of described parameter is for described less preferred value and for being preferred in described less preferred value and each value between the described intermediate value.

Compositions of the present invention is a kind of shampoo, and it preferably comprises the surfactant that is suitable for cleaning hair.The gentle surfactant of normally a kind of high foaming of described surfactant system, it can be anionic, non-ionic, amphoteric, zwitterionic or cationic.The mixture of anion and nonionic, amphion and/or amphoteric surfactant is particularly preferred.

Preferred described surfactant comprises at least a high HLB surfactant, and it is preferably a kind of anion surfactant and its HLB greater than 37, more preferably greater than 38, most preferably greater than 39.Usually the HLB of described high HLB surfactant is more preferably less than 50, most preferably less than 45 less than 80.Our preferred described high HLB surfactant comprise total surfactant greater than 50 weight %, more preferably at least 60%, most preferably at least 70%.

Described surfactant preferably comprises at least a low HLB surfactant, for example HLB less than 35, preferably less than 30, be more preferably less than 20 even be more preferably less than 15 surfactant.The described low preferred HLB of HLB surfactant is greater than 0.5, more preferably greater than 1.Preferred embodiment comprise HLB greater than 5 but less than 12, be more preferably less than 10 surfactant, particularly sarcosinate, alkyl sulfate, hydroxyl sulfo betaine and diglycollic amide such as lauric acid amide of ethanol.

Our preferred especially described surfactant should comprise the low HLB nonionic foam booster of HLB between 0.5 and 5, comprises fatty acid such as oleic acid, aliphatic alcohol such as oleyl alcohol, acetylated monoglyceride, diglyceride such as glyceryl dioleate, anhydrous sorbitol three esters such as sorbitan trioleate and anhydrous sorbitol tristearate.For avoiding doubt, term used herein " surfactant " under the situation that context allows, comprises low HLB foam booster.

Described low HLB surfactant should be preferably exists with the ratio with the capacity of higher HLB surfactant, so that an average HLB between 13 and 36.5 to be provided, more preferably more than 15, more preferably more than 20, even more preferably more than 25, most preferably more than 27, but preferably less than 36, be more preferably less than 35, most preferably less than 34.

Preferred high HLB anion surfactant comprises alkyl ether sulfate.The product that alkyl ether sulfate preferably obtains by the following method:

(1) a kind of natural fat of ethoxylation or synthol, its have on average more than 8, preferably more than 10, more preferably more than 12, but be less than 30, preferably be less than 25, more preferably less than 20, most preferably be less than 15 carbon atoms, have on average at least 0.5, preferably more than 1, more preferably more than 1.5, but be less than 40, preferably be less than 30, more preferably less than 20 in addition more preferably less than 10, more preferably less than 5, most preferably be less than 3 ethyleneoxy group groups;

(2) randomly, remove any unreacted alcohol;

(3) make the reaction of ethoxylated product and a kind of sulfur acidizing reagent; With

(4) with in a kind of alkali and formed alkyl ether sulphuric acid.

Suitable alkyl ether sulfate also comprises alkyl glycerol base sulfate and random or block copolymerization alkyl ethoxy/propoxyl group sulfate.

Other anion surfactants that can exist---have low HLB usually---and comprise, for example: C _10-20(as C _12-18) alkyl sulfate; C _10-20Alkylbenzenesulfonate; C _8-20(as C _10-20) the aliphatic soap, as dodecanoate, myristate, stearate, isostearate, oleate, linoleate, linolenate, behenate, eruciate, palmitate, Cortex cocois radicis soap and tallow soap; Alkenyl sulphonate; Alkylsulfonate; Taurate; Isethionate; Ether sulfonate; Ether carboxylate; Fatty ether sulfonate, for example alkyl glycerol sulfonate; Sarcosinate; Sulfosuccinate; Or sulphosuccinamate.

The mixture of alkyl ether sulfate and sarcosinate is particularly preferred.

The cation of anion surfactant is sodium and/or ammonium normally.But its also can or or also comprise following material in addition: potassium, lithium, calcium, magnesium, ammonium, perhaps contain the alkyl or the hydroxy alkyl ammonium that are up to 6 aliphatic carbon atoms, comprise ethyl ammonium, isopropyl ammonium, monoethanol ammonium, diethanol ammonium and triethanol ammonium, or the mixture of any above-mentioned substance.

Described surfactant can randomly comprise non-ionic surface active agent such as amine oxide, polyglyceryl fatty ester, fatty acid ethoxylate, fatty acid monoalkylol amide, fatty acid di alkanolamide, fatty acid alkanol amides ethoxylate, propylene glycol monoester, aliphatic alcohol propoxylate, alcohol ethoxylate, alkylphenol ethoxylate, fatty amine alcoxylates and fatty glyceride ethoxylate.Other non-ionic compounds that are suitable for being included in the present composition comprise blended ethylene oxide/propylene oxide block copolymer, ethylene glycol ester, alkyl polyglycoside, the alkyl sugar ester comprises alkyl sucrose ester and the oligomeric sugar ester of alkyl, sorbitan ester, ethoxylation sorbitan ester, alkyl-blocked polyvinyl alcohol and alkyl-blocked polyvinylpyrrolidone.

Described surfactant can comprise a kind of both sexes or zwitterionic surfactant.Amphoteric surfactant can comprise so-called imidazolinium betaine, is also referred to as both sexes acetate (amphoacetate), thinks that as usual it has the amphion structural formula:

Because they obtain by chloracetic acid sodium and imidazoline reaction.But demonstrated them in fact and---at least mainly---existed with corresponding both sexes straight chain amido amine:

Its usually with the commercially available acquisition of the mixture of two carboxy methylation forms:

R preferably contains at least 8, more preferably at least 10 carbon atoms, but be less than 25, more preferably less than 22 in addition more preferably less than 20, most preferably be less than 18.Usually the R representative is available from for example Oleum Cocois or Petiolus Trachycarpi oil and have the alkyl of 8 to 18 carbon atoms---based on 12---size and the mixture of thiazolinyl, or this type of part of raw materials, as lauryl (＞90%C ₁₂).

Described zwitterionic surfactant is preferably betanin or sulfobetaines, for example a kind ofly has a formula R " R ' ₂NCH ₂The chemical compound of COOH, wherein R ' is a kind of aliphatic group with 1 to 4 carbon atom, R " be a kind of aliphatic group with 8 to 25 carbon atoms, preferably a kind of straight or branched alkyl or alkenyl, or be more preferably a kind of formula RCONR ' (CH that has ₂) _nGroup, wherein R and R ' have implication same as described above, and n is an integer in 2 to 4.

We preferred R ' is methyl, carboxymethyl, ethyl, ethoxy, carboxyethyl, propyl group, isopropyl, hydroxypropyl, carboxylic propyl group, butyl, isobutyl group or hydroxyl butyl group.

Described surfactant can comprise cationic surfactant, pricks ammonium salt, amido amine or imidazoline as fatty alkyl trimethyl ammonium or benzene.

In the total formulation weight amount is benchmark, and preferred total surfactant is with at least 2, more preferably at least 7, still more preferably the ratio of at least 9, most preferably at least 10 weight % exists, but be lower than 30, more preferably less than 25, most preferably be lower than 23 weight %.

The ratio that our preferred especially described surfactant comprises an A. ether sulfate and B. sarcosinate, betanin or sulfobetaines, wherein A a: B be from 1: 1 to 4: 1, preferred 1.5: 1 to 3: 1.

Antidandruff shampoo of the present invention has suspension character, and a kind of dandruff removing agent such as selenium sulfide are enough to suspend.It should maintain most at least solid in the suspended substance at least three months.This can add thickening polymer such as Xanthan gum or glycol stearate by conventional method and realize.But settled suspension system does not take place in us after preferred three months.For reaching this target, need to use a kind of structuring suspension system, particularly new as described herein suspension system usually.

We are particularly preferably in using sugared structured surfactant system among the present invention.We have also found to use clarifying suspension system, and---those as describing among WO 01/05932 or the WO 00/63079---provide visually attractive especially Muscovitum suspended substance.

Described sugar is preferably a kind of monosaccharide or disaccharide more preferably, most preferably is sucrose, but can be for example fructose, maltose, glucose or Nulomoline.Spendable other steamed bun stuffed with sugars are drawn together, for example mannose, ribose, galactose, lactose, allose, altrose, talose, gulose, idose, arabinose, xylose, lyxose, erythrose, threose, acrose, rhamnose, fucose, glyceraldehyde, stachyose, agavose and cellobiose or a kind of trisaccharide or tetrose.

Described compositions can or comprise or comprises in addition electrolyte and makes structural agent.The concentration of electrolyte and/or sugar is preferably and is enough to provide a kind of structuring suspension system.The amount that needs depends on the kind and the concentration of surfactant.Usually, only using under the electrolytical situation, is benchmark in the weight of preparation, described amount greater than 4, be preferably greater than 5, more preferably greater than 6, most preferably greater than 7 weight %, but less than 20, be more preferably less than 15, most preferably less than 12%.Under the situation of using sugar, the amount that needs usually greater than 20 weight %, be preferably greater than 30 weight %, most preferably greater than 40 weight %, but preferably less than 60 weight %.

Electrolyte is sodium chloride and/or ammonium chloride normally, but can for example alternatively or in addition be or comprise sodium carbonate, potassium chloride, sodium phosphate or sodium citrate.

Use for a lot of shampoos, do not wish to use the electrolyte of higher level.They may have the harsh feeling that is difficult to accept on hair.Replacement or stable except using electrolyte to improve, Chang Youxuan raising are hanged down the ratio of HLB surfactant up to obtaining stable formulation.

Compositions of the present invention does not preferably contain electrolyte substantially." not containing substantially " used herein be meant they with when the low HLB surfactant, the amount that is enough to give shampoo surfactant suspension structure do not comprise electrolyte.Usually electrolyte content is low more, and foam properties is good more.The concentration of our preferred electrolyte is to be lower than 7% of composition weight, more preferably less than 5%, still more preferably less than 3%, even more preferably less than 1%, most preferably is lower than 0.1%.

Therefore, according to a kind of preferred embodiment, our invention provides a kind of electrolytical structuring aqueous shampoo Compositions that do not contain substantially, and it comprises:

(1) a kind of high foaming anion, both sexes and/or amphion shampoo surfactant; With

(2) be enough to provide a kind of low HLB surfactant of structuring suspension system.

Preferred described low HLB surfactant comprises a kind of non-ionic surface active agent, and it is preferably a kind of HLB less than 5 low HLB foam booster.

The optimised quantity of electrolyte and/or low HLB surfactant can be by carrying out that increment adds and measuring yield point and---for example use flow graph---to determine that the amount that obtains maximum yield point determines.

Replace measuring yield point, the definite fast of optimised quantity obtains by measuring electrical conductivity.Along with adding electrolyte or low HLB surfactant, conductivity is reduced to the minima that is positioned at a scrobicula point, rises to the peak then.Preferable range usually first this type of minima+/-2% in, in preferred+/-1%.Another kind of be defined as fast shaking and make the air admission compositions and observe bubble what the structuring system formed, it does not show ascendant trend in the structuring system.

Described shampoo preferably comprises a kind of cationic polymer that exists with the hair nursing effective dose, and it can for example comprise a kind of polyquaternary ammonium salt polymer.Usually this needs at least 0.01 weight %, preferred at least 0.05 weight %, more preferably at least 0.1 weight %, the described polymer of at least 0.2 weight % most preferably.The technical much higher polymer of concentration that can suspend is for example greater than 10%; For cost benefit, we preferably use be less than 5 weight %, more preferably less than 2 weight %, still more preferably less than 1 weight %, most preferably be less than the described polymer of 0.5 weight %.

Antidandruff shampoo of the present invention preferably comprise effective dose at least, be preferably greater than 0.05 weight %, more preferably greater than 0.1 weight %, most preferably greater than the selenium sulfide of 0.5 weight %, be benchmark in the gross weight of compositions.The technical upper limit depends primarily on admissible viscosity, but the selenium that exists is many more, just needs many more Muscovitums to cover it.Consider from economic interests equally, this require actual concentrations be lower than 7 weight % of compositions, preferably be lower than 5 weight %, more preferably less than 3 weight %, most preferably be lower than 2 weight %.

The granular size of selenium sulfide is preferably greater than 0.1 μ m, more preferably greater than 1 μ m, still more preferably greater than 10 μ m.Granule is more preferably less than 0.75mm preferably less than 1mm, still is more preferably less than 0.5mm, most preferably less than 0.1mm.

Obtain the required micaceous ratio of uniform outer appearance and will depend on the amount of selenium sulfide, but be at least 0.01%, preferably at least 0.05%, more preferably at least 0.1%, most preferably at least 0.2% of composition weight usually.For avoiding expensive and too high viscosity, preferred micaceous concentration be lower than composition weight 5%, more preferably less than 2%, still more preferably less than 1%, most preferably be lower than 0.5%.

We especially preferably use the coating Muscovitum, particularly use the Muscovitum of metal-oxide such as ferrum oxide, titanium dioxide, tin ash, aluminium oxide and/or silicon dioxide coating.These products can obtain with multiple different tones, and some of them are particularly useful for shampoo.Micaceous granular size is preferably greater than 1 μ m, more preferably greater than 5 μ m, most preferably greater than 10 μ m, but less than 200 μ m, be more preferably less than 100 μ m, most preferably less than 50 μ m.

Described compositions preferably comprises hair care agent such as oleyl alcohol, ethyl oleate, oil base ethoxylate or the glycerol of effective dose, for example wherein ratio greater than described composition weight 0.05%, be preferably greater than 0.1%, more preferably greater than 0.5%, most preferably greater than 0.7%, but less than 10%, preferably less than 5%, be more preferably less than 3%, most preferably less than 2%.

Described product preferably comprises a kind of buffer agent, as citrate/citric acid buffer agent.PH is preferably greater than 4, more preferably greater than 5.When composition is enough stablized, pH also more preferably greater than 6, most preferably greater than 6.5, but less than 9, be more preferably less than 8, most preferably less than 7.5.Under the situation of using selenium sulfide, pH needs lower to guarantee stability, for example is lower than 6.

Described product can randomly comprise other shampoo compositions commonly used, as quintessence oil, essence, pigment, dyestuff, antiseptic and local with medicament.

Described product is suitable for selling in transparent vessel (as glass or plastic bottle) or plastic tube or bag.

The present invention will illustrate that unless wherein point out in addition, all proportions is in weight % by the following example.

Example I

Above compositions is a kind of stable, gentle, high structuring liquid that foams.The average HLB of surfactant is 33.Suspension system is not clarifying when having solid.Suspended substance is stable and have a golden color and luster of wanting especially after two months.It is particularly useful for cleaning golden hair.

Example II

Following preparation prepares to avoid gas to carry secretly by adding following ingredients in the indicated order and slowly stir in water.Described ether sulfate and alkyl sulfate add with the 28%w/w aqueous solution separately.The average HLB of surfactant is 28.

Antiseptic	0.09
		Sodium citrate	0.05
Citric acid	0.1
		3 moles of ethyoxyl sodium sulfate of lauryl	9.8
Sodium lauryl sulfate	6.0
		Lauric acid amide of ethanol	0.8
Selenium sulfide	1.0
		Ammonium chloride	12.0
Muscovitum	0.25

Use the Muscovitum through the oxide coating of three kinds of different tones to prepare sample, obtain being applicable to golden hair, dark brown hair and red 's shampoo preparation respectively.Compare with the conventional pearl shining shampoo agent of making pearling agent based on glycol stearate, described shampoo is stable, dumpable and have a meticulous especially Margarita color and luster.Discover existence less than selenium sulfide.

EXAMPLE III

3 moles of ethyoxyl sodium sulfate of lauryl	13.8
		Oil base sarcosine ammonium	2.9
Ammonium chloride	8
		Oleyl alcohol	1.15
Citric acid	0.1
		Sodium citrate	0.05
Antiseptic	0.09
		Blue pigment	0.00015
Essence	In right amount

Above-mentioned composition is a kind of stable, gentle, high structuring liquid that foams.The average HLB of described surfactant is 33.Stir with 1% microgranule Selenium Sulphate (the granular size intermediate value is 5 μ m), can obtain a kind of suspended substance, it does not show separation after storing six months under the laboratory environment temperature.Small-angle x-ray diffraction and electronic microscopy have confirmed sphaerulitic.When not having Muscovitum, preparation has not beautiful variegated outward appearance.

EXAMPLE IV

The aqueous solution of 1 one kinds of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone.

Merck before 2.

Above-mentioned composition be a kind of fully stable, outward appearance evenly, pelletiod liquid, have attracting metallic gold gloss.The average HLB of surfactant is 32.Store and do not observe sedimentation after six months.

EXAMPLE V

A kind of cationic polymer preparation is by adding following ingredients except ammonium chloride in the indicated order, slowly stirring, prepare with the high-shear mixer mixing then in water.Make the described mixture degassing two hours.Adding ammonium chloride at last under slowly stirring carries secretly to avoid excess air.Described ether sulfate and alkyl sulfate add with the 28%w/w aqueous solution separately.

3 moles of ethyoxyl sodium sulfate of lauryl	11.94
		Sodium lauryl sulfate	7.03
Lauric acid amide of ethanol	0.96
		" polyquaternary ammonium salt " 10 cationic polymers	0.24
Sodium citrate	0.2

Citric acid	0.04
		Ammonium chloride	11
Essence	0.68
		" Kathon " G antiseptic	0.1

Obtain a kind of stable, dumpable lamelliform suspended substance, its 4 and 20nm between show the low-intensity scattering.

Example VI and VII

Do not contain electrolytical preparation by in water, adding following ingredients in the indicated order, at room temperature slowly stirring until evenly preparing.

Oleyl alcohol	2.06
			Oleic acid		2.31
Cocamidopropyl betaine	3.91	3.97
			Sucrose	41.87	39.83
2 moles of ethyoxyl sodium sulfate of lauryl	15.67	15.89
			Water	Surplus	Surplus

With citrate buffer agent described preparation is buffered to pH 5.5.Their form has the micaceous suspended substance of 10% coating, and it is stable under room temperature and 45 ℃ after two months.The viscosity of this example is at 21s ^-1Be about 3Ps under the shear.

Claims

1. aqueous suspension system, it comprises: (A) a kind of HLB is greater than 37 anion, nonionic and/or amphoteric surfactant; (B) a kind of HLB that is enough to be provided at the average HLB between 13 and 36.5 is lower than 30 anion, both sexes and/or non-ionic surface active agent; (C) be enough to form a kind of carbohydrate and/or electrolyte of structuring suspension system.

2. the aqueous suspension system of claim 1 is characterized in that surfactant (A) comprises a kind of alkyl ether sulfate.

3. claim 1 or 2 aqueous suspension system is characterized in that surfactant (A) accounts at least 60% of total surfactant weight.

4. each aqueous suspension system in the claim 1 to 3 is characterized in that surfactant (B) comprises the surfactant of a kind of HLB between 5 and 15.

5. each aqueous suspension system in the claim 1 to 4 is characterized in that surfactant (B) comprises at least a surfactant that is selected from sarcosinate, hydroxyl sulfo betaine, alkyl sulfate, alkyl diglycollic amide.

6. each aqueous suspension system in the claim 1 to 5 is characterized in that surfactant (B) comprises the low HLB foam booster of at least a HLB between 0.5 and 5.

7. the aqueous suspension system of claim 6 is characterized in that described low HLB foam booster is non-ionic.

8. the aqueous suspension system of claim 7 is characterized in that described low HLB foam booster is oleyl alcohol or oleic acid.

9. each did not contain electrolytical aqueous suspension system substantially during aforesaid right required.

10. a shampoo that comprises each aqueous suspension system in the aforesaid right requirement is characterized in that selenium sulfide and/or cationic polymer that it comprises suspension.

11. each the aqueous suspension system purposes of selenium sulfide that is used to suspend in the claim 1 to 9.

12. each aqueous suspension system be used for suspending jointly selenium sulfide and micaceous purposes in the claim 1 to 9.

13. Muscovitum is used to improve the purposes of the outward appearance of aqueous selenium sulfide suspended substance.

14. an antidandruff shampoo, it comprises a kind of aqueous suspension medium that is used for selenium sulfide and wherein is suspended with the effective dose selenium sulfide, it is characterized in that described suspension media also comprises the suspension Muscovitum of capacity so that a kind of product of more uniform outer appearance to be provided.

15. the shampoo of claim 14 is characterized in that described aqueous suspension medium comprises the surfactant of capacity and electrolyte and/or carbohydrate structure agent to form a kind of structured surfactant suspension system.

16. as clear as crystal container that comprises the antidandruff shampoo of claim 14 or 15.