Antiperspirant sprays with less fabric staining

Description

[0001] The invention belongs to the cosmetic field and relates to antiperspirant aerosol sprays with reduced textile staining.

[0002] Cosmetic products generally serve not only to make people look beautiful and attractive, but also contribute significantly to increased self-esteem and well-being. Accordingly, a wide variety of cosmetic products are used for daily skin cleansing and care.

[0003] One category of cosmetic products is deodorants and antiperspirants, which are applied under the armpits to prevent unpleasant odors. These unpleasant odors are caused by the decomposition of odorless sweat by bacteria. Fatty acid residues are produced as a byproduct of this decomposition, which characterizes the typical, familiar smell of sweat. Although deodorants and antiperspirants are applied to the same area of ​​skin and have the same purpose, they differ in their technical effect.

[0004] Antiperspirants contain active ingredients that inhibit and reduce the flow of sweat. Antiperspirants containing aluminum can clog sweat glands.

[0005] Deodorants, on the other hand, are characterized by the fact that they do not inhibit the flow of sweat. Instead, deodorants are products that contain special antimicrobial agents that inhibit the growth of bacteria, such as Corynebacterium jeikeium or Staphylococcus epidermidis, As a result, the decomposition of odorless sweat is reduced, resulting in fewer unpleasant odors.

[0006] Conventionally, antiperspirants and deodorants are applied to the skin either with a roller application device or as a spray. Both propellant-powered aerosol sprays and hand-operated pump sprays are used. Depending on the application method, the cosmetic preparations vary significantly in their composition.

[0007] When using antiperspirants or deodorants, many consumers complain of unwanted stains in the underarm area on their clothing. These are often yellowish stains that may also tend to crust over. These deposits and stains are primarily caused by a complex interaction between the product, skin oil, sebum, sweat, and detergent, and are difficult to remove using conventional cleaning methods.

[0008] The stains can vary in severity from person to person. One cause is the aluminum salts used in most antiperspirant deodorants. These stubborn stains are difficult or impossible to completely remove with washing, even after pretreatment with stain remover.

[0009] There is a wealth of literature and patents dealing with the formation of stains on skin and clothing and how to prevent them when using antiperspirants.

[0010] EP 1178775 A1 describes the use of water-soluble surfactants to improve the washability of residues from skin and clothing. Combinations of astringent salts with water-soluble, non-ionic surfactants are described, which are said to have a rapid onset of antiperspirant action and high effectiveness.

[0011] EP 973492 A1 describes the use of surface-active substances, primarily non-ionic emulsifiers, in antiperspirants. The antiperspirant stick formulations comprise non-volatile emollients, a carrier, e.g., cyclomethicone, a fatty alcohol, such as stearyl alcohol, an antiperspirant material, and a surfactant. The problem of the formation of white residues on the skin and clothing, which can occur when using aluminum-containing antiperspirants, is described. This addresses the problem of whitening of the formulation by matching the refractive index of the ingredients.

[0012] EP 858317 A1 describes preparations containing surface-active substances with an HLB > 10 for removing greasy residues on the skin.

[0013] EP 696188 A1 describes the use of a wash-off agent to remove the lipid components from the skin, preferably ethoxylates.

[0014] DE 102008052748, an earlier application by the patent holder, describes the use of emulsifiers in anhydrous suspensions to improve the formulation's ability to be washed off the skin. The structuring agents advantageously present in the anhydrous formula can leave a noticeably waxy residue on the skin. The presence of polar groups on the emulsifiers used increases the affinity for water when the formulation is washed off, and the residues disappear. Non-ionic emulsifiers are preferred for this purpose. Another example is DE102017 223179A1.

[0015] Antiperspirant preparations that are sprayed from an aerosol can using a propellant are usually in the form of an anhydrous suspension. An anhydrous suspension means that no free water has been added to this suspension. However, water of crystallization, water of hydration, or similarly molecularly bound water may be present. The content of water of crystallization, water of hydration, or similarly molecularly bound water contained in the ingredients used, in particular in the antiperspirant active ingredients, does not constitute free water within the meaning of the present application. Free water is, for example, water that would be added to the suspension as a solvent, as a gel activator, or as a solvent component of other active ingredients. In this case, the suspension would no longer be anhydrous.The anhydrous suspensions for aerosol sprays contain, in addition to sweat-reducing active ingredients, usually at least one cosmetic oil as a carrier for the particulate sweat-reducing active ingredient. The suspensions are filled into a pressure-resistant container, usually a can made of tinplate or aluminum with an internal coating, together with a liquefied hydrocarbon, such as n-butane, isobutane, and / or propane, as a propellant. Before using the spray valve, which releases the propellant and a portion of the suspension, the container must first be shaken sufficiently to mix up the settled antiperspirant active ingredient. To prevent the suspended antiperspirant active ingredient from settling again immediately, commercially available suspensions contain a suspending agent, e.g.hydrophobically modified hectorites, such as those available under the trade name Bentone Gel from Rheox and Elementis Specialties, or hydrophilic and / or hydrophobically modified silicas.

[0016] Cyclomethicone is already known in the art as a highly suitable carrier oil for antiperspirant sprays. Because this oil has a relatively high volatility and therefore does not block the antiperspirant active ingredient too strongly, cyclomethicone achieves a very satisfactory release of the antiperspirant active ingredient and relatively low textile soiling. However, the use of cyclomethicone and other silicone oils should be avoided if possible due to its persistence.

[0017] WO 2010097205 A1 discloses, in examples P10, 12, 13, and 14, antiperspirant preparations intended to be discharged from an aerosol can for application to the skin by means of a propellant. The compositions contain, to a large extent, silicone oils. At the same time, WO 2010097205 A1 addresses the problem of providing cosmetic antiperspirants that exhibit reduced staining on clothing and, above all, help improve subsequent washability. This problem was solved by adding one or more surfactants, in particular by adding palmitamidopropyltrimonium chloride.

[0018] WO 2013092208 A2 also relates to antiperspirant preparations intended to be delivered from an aerosol can for application to the skin by means of a propellant. Furthermore, WO 2013092208 A2 addresses the effective release of the antiperspirant active ingredient from a water-free antiperspirant composition and the reduction of textile soiling. The use of cyclomethicone in the composition is to be reduced, even though the use of cyclomethicone leads to less textile soiling. The compositions of WO 2013092208 A2 use a mixture of high proportions of non-volatile silicone oils in combination with a low proportion of non-volatile oils and at least one paraffin oil (mineral oil), as well as 0 to less than 1 wt.% cyclomethicone.

[0019] A disadvantage of WO 2013092208 A2 is the fact that reduced textile soiling is only possible through the use of silicone oils and mineral oils, such as paraffin oil. However, consumers are increasingly choosing to avoid not only silicone oils but also mineral oils, such as paraffin oils, as these are not perceived as natural. Furthermore, mineral oils are often suspected of containing undesirable MOSH (mineral oil saturated hydrocarbons) or MOAH (mineral oil aromatic hydrocarbons). However, depending on the method of extraction, this can be ruled out, so that no contamination is actually present. Nevertheless, consumers are increasingly avoiding even harmless products containing mineral oils.

[0020] Furthermore, a large number of commercial antiperspirant aerosol sprays are known from the state of the art, which, according to product claims, are said to have lower textile soiling.

[0021] The fact that a variety of approaches are already known to reduce textile soiling with antiperspirant aerosol suspension sprays should not obscure the fact that textile soiling with antiperspirant aerosol suspension sprays should continue to be reduced.

[0022] One object of the present invention was therefore to provide antiperspirant aerosol suspension sprays which cause less textile soiling, while avoiding the use of silicone oils and mineral oils.

[0023] The present invention relates to a cosmetic product comprising a) A pressurized container having a dispensing valve suitable for spray application; b) A silicone-, water-, and mineral oil-free cosmetic suspension comprising, based on the total weight of the suspension, i. an aluminum-containing antiperspirant active ingredient, ii. 30 to 40 wt.% isopropyl palmitate, and iii. additionally a total of 15 to 40 wt.% of an oil mixture comprising at least one oil having an interfacial tension with water at 20°C of more than 30.0 mN / m and at least one further oil having an interfacial tension with water at 20°C of less than 30.0 mN / m, c) A propellant comprising at least one gas selected from the group butane, isobutane, propane, pentanes, and / or nitrogen, characterized in that both the cosmetic suspension and the propellant are contained in the pressure vessel, the weight ratio of the suspension to the propellant being from 5:95 to 60:40.

[0024] According to the invention, isopropyl palmitate is not to be included in the oil mixture iii.

[0025] Another object of the invention is the use of 30 to 40% by weight of isopropyl palmitate in combination with 15 to 40% by weight of an oil mixture comprising at least one oil having an interfacial tension to water at 20°C of more than 30.0 mN / m and at least one further oil having an interfacial tension to water at 20°C of less than 30.0 mN / m in a silicone-, water- and mineral oil-free cosmetic suspension containing an aluminum-containing antiperspirant active ingredient for reducing textile soiling caused by aluminum-containing antiperspirant active ingredients, wherein the above weight data relate to the total weight of the suspension.

[0026] According to the invention, the oil mixture does not contain any mineral oil or silicone oil. All oils contained in the mixture are classified as such, with the exception of isopropyl palmitate.

[0027] Unless otherwise stated, all weight percentages (wt%) given below are based on the total weight of the suspension according to the invention. Where ratios of certain components are disclosed in the following description, these ratios refer to weight ratios of the components unless otherwise stated.

[0028] The phrases "according to the invention", "advantageous according to the invention", "advantageous within the meaning of the present invention" etc. always refer in the context of the present disclosure to the preparation according to the invention and the use according to the invention as well as to the method according to the invention.

[0029] Unless otherwise stated, all tests and measurements were conducted under "normal conditions." The term "normal conditions" refers to 20°C, 1013 hPa, and a relative humidity of 50%.

[0030] The term "skin" refers exclusively to human skin.

[0031] The term "anhydrous" in the context of the present disclosure is to be understood as meaning that no free water has been added to the suspension. Water of crystallization, water of hydration, or similarly molecularly bound water may be present, but the proportion generally does not exceed 5 wt.% based on the total weight of the suspension.

[0032] If viscosity values ​​are given in this disclosure, all values ​​refer to a measurement at 25°C in a 150 ml wide-neck bottle (VWR No.: 807-001) using a Rheomat R 123 from proRheo. The Rheomat R 123 from proRheo GmbH is a rotational viscometer, i.e. a measuring body rotates in the substance to be measured. The force required to rotate the measuring body in the sample at a specified speed is measured. The viscosity is calculated from this torque, the speed of the measuring body and the geometric dimensions of the measuring system used. The measuring body used is measuring body no. 1 (article no. 200 0191), suitable for a viscosity range up to 10,000 [mPa s], speed range 62.5 min -1<.

[0033] The use of the cosmetic product or suspension of the invention reduces or prevents the formation of stains in or on clothing and improves the washability of stains caused by the suspension itself from the clothing.

[0034] According to the invention, reducing or preventing staining on textiles before and especially after washing means the reduced b-value, which is determined photometrically using the colorimetric values ​​in the CIE L*a* b* color space and is measured against the b-values ​​of the textile stained with a preparation containing an antiperspirant but without the oil mixture according to the invention. A comparative test has shown that staining of the cosmetic product according to the invention in or on clothing is fundamentally reduced, or the clothing is less yellowishly stained.

[0035] Textile staining refers to stains on clothing, particularly in the underarm area. These are stains that remain on the clothing after wear and / or washing and can become more intense with age. These stains do not refer to the residues on the skin or clothing known as "whitening." These white residues can usually be removed mechanically (by brushing) or by washing.

[0036] Rather, according to the invention, these are mostly yellowish stains that occur when the cosmetic product or its components come into contact with the textile during perspiration along with body secretions from the armpit. Washing the textile removes some of these deposits, while others remain as residue on the textile.

[0037] The measure of improvement or reduction is defined as the difference in stain formation or its washout when using the product or suspension according to the invention and a product or suspension not according to the invention.

[0038] The invention specifically addresses the well-known yellowish staining of antiperspirants in or on clothing after the garment has been washed. The solution concept of improved washability also applies here. The yellow value of the stain is therefore defined in particular by the b-value, which can be determined photometrically using the colorimetric values ​​in the CIE L*a*b* color space. The inventive use of stain prevention or improved washability preferably relates to textiles that contain or consist of cotton.

[0039] The suspension according to the invention comprises at least one aluminum-containing antiperspirant active ingredient. It is advantageous if at least one aluminum salt is present as the antiperspirant active ingredient. It is furthermore particularly advantageous if the antiperspirant active ingredient is selected from the group of aluminum salts having the formula [Al 2 (OH) m Cl n ], where m+n=6.

[0040] Examples of aluminum salts according to the invention are: Aluminum salts such as aluminum chloride AlCl 3 , aluminum sulfate Al 2 (SO 4 ) 3 Aluminum chlorides of the empirical molecular formula [Al 2 (OH) m Cl n ], where m+n=6 Aluminum chlorohydrate [Al 2 (OH) 3 Cl] x H 2 O (ACH) ∘ Standard Al complexes: Locron P (Clariant), Locron L (Clariant), Micro-Dry (Reheis), ACH-331 (Summit), Aloxicoll PF 40 (Giulini). ∘ Activated Al complexes: Reach 501 (Reheis), AACH-324 (Summit), AACH-7171 (Summit), Aloxicoll P (Giulini), Aloxicoll SD100 Aluminum sesquichlorohydrate [Al 2 (OH) 4.5 Cl 1.5 ] x H 2 O ∘ Standard Al complexes: Aluminum sesquichlorohydrate (Reheis), AACH-308 (Summit) ∘ Activated Al complexes: Reach 301 (Reheis) Aluminum dichlorohydrate [Al 2 (OH) 4 Cl 2 ] x H 2 O

[0041] Furthermore, it is advantageous if at least one aluminum zirconium salt is present as the antiperspirant active ingredient. These are advantageously selected from the group aluminum / zirconium trichlorohydrex glycine ([Al 4 Zr(OH) 13 Cl 3 ] x H 2 O x Gly), aluminum / zirconium tetrachlorohydrex glycine ([Al 4 Zr(OH) 12 Cl 4 ] x H 2 O x Gly), aluminum / zirconium pentachlorohydrex glycine ([Al 8 Zr(OH) 23 Cl 5 ] x H 2 O x Gly), aluminum / zirconium octachlorohydrex glycine ([Al 8 Zr(OH) 20 Cl 8 ] x H 2 O x Gly) and the glycine-free aluminum / zirconium salts. Aluminum / zirconium tetrachlorohydrex glycine is particularly preferred.

[0042] It is particularly advantageous if aluminum chlorohydrate and / or aluminum sesquichlorohydrate are included as the antiperspirant active ingredient.

[0043] Advantageously, the total proportion of the aluminum-containing antiperspirant active ingredients in the suspension is from 15% by weight to 45% by weight, preferably from 17 to 40% by weight and particularly preferably from 18 to 37% by weight, based on the total weight of the suspension.

[0044] Furthermore, it is advantageous if the total proportion of aluminum chlorohydrate and / or aluminum sesquichlorohydrate in the suspension is from 10 wt.% to 45 wt.%, preferably from 12 to 41 wt.% and particularly preferably 15 to 37 wt.%, based on the total weight of the suspension.

[0045] If both aluminum chlorohydrate and aluminum sesquichlorohydrate are present, the weight ratio of aluminum chlorohydrate to aluminum sesquichlorohydrate is advantageously from 2:1 to 15:1, preferably from 4:1 to 10:1 and particularly preferably from 6:1 to 8.5:1.

[0046] According to the invention, the suspension contains 30 to 40 wt.% isopropyl palmitate, based on the total weight of the suspension. It is preferred if the proportion of isopropyl palmitate is from 31 wt.% to 39 wt.%, more preferably from 32 wt.% to 38.5 wt.%, and especially preferably from 32.5 wt.% to 38 wt.%, based on the total weight of the suspension.

[0047] The suspension according to the invention further comprises 15 to 40% by weight of an oil mixture comprising at least one oil with an interfacial tension to water at 20°C of more than 30.0 mN / m and at least one further oil having an interfacial tension to water at 20°C of less than 30.0 mN / m, the details being based on the total weight of the suspension. Advantageously, the suspension according to the invention comprises 20 to 37% by weight of an oil mixture comprising at least one oil with an interfacial tension to water at 20°C of more than 30.0 mN / m and at least one further oil having an interfacial tension to water at 20°C of less than 30.0 mN / m, the details being based on the total weight of the suspension. Particularly advantageously, the suspension according to the invention comprises 25 to 35% by weight.-% of an oil mixture comprising at least one oil having an interfacial tension to water at 20°C of more than 30.0 mN / m and at least one further oil having an interfacial tension to water at 20°C of less than 30.0 mN / m, the data relating to the total weight of the suspension.

[0048] It is also advantageous if the suspension is free of oils which have an interfacial tension with water at 20°C of more than 35.0 mN / m.

[0049] Furthermore, it is advantageous if the total proportion of oils which have an interfacial tension to water at 20°C of more than 30.0 mN / m to the total proportion of oils which have an interfacial tension to water at 20°C of less than 30.0 mN / m, excluding isopropyl palmitate, is from 1:0.5 to 1:4.5, preferably from 1:1.2 to 1:4 and in particular from 1:2 to 1:3.5.

[0050] The following table shows the interfacial tension of various oils against water at 20°C. INCI Interfacial tension vs. water at 20°C in mN / m Octyldodecanol 28 Caprylic / Capric Triglyceride 25,5 Dicaprylyl Ether 34 Isopropyl Palmitate 28,9 C12-15 Alkyl Benzoates 28,6 Triethyl Citrate 4,3

[0051] Surprisingly, by adjusting the interfacial tensions of the oils according to the invention, a significant reduction in the textile soiling described according to the invention and an improved washability could be achieved.

[0052] It is advantageous according to the invention if the oil mixture contains at least dicaprylyl ether as oil having an interfacial tension against water at 20°C of more than 30.0 mN / m.

[0053] Furthermore, it is preferred if the oil mixture is characterized in that it contains at least one oil which has an interfacial tension with water at 20°C of 0.5 to 15 mN / m, preferably of 2 to 10 mN / m and particularly preferably of 3 to 8 mN / m.

[0054] Oil mixtures advantageous according to the invention advantageously comprise dicaprylyl ether and one or more oils selected from the group consisting of octyldodecanol, caprylic / capric triglyceride, C12-15 alkyl benzoate, isoamyl laurate, cetearyl isononanoate, ethylhexyl cocoate, C12-13 alkyl lactate, and triethyl citrate. Further advantageous oil mixtures according to the invention advantageously comprise dicaprylyl ether and one or more oils selected from the group consisting of octyldodecanol, caprylic / capric triglyceride, C12-15 alkyl benzoate, and triethyl citrate.

[0055] Advantageously, in addition to dicaprylyl ether, octyldodecanol, caprylic / capric triglyceride, C12-15 alkyl benzoate and / or triethyl citrate, further oils are only contained in the oil mixture of the suspension in proportions of up to a maximum of 10% by weight, based on the total weight of the suspension, with 0 to 0.5% by weight of the further oils being preferred.

[0056] If the suspension of the invention contains dicaprylyl ether, it is advantageous if the proportion of dicaprylyl ether is from 2 to 25% by weight, preferably from 6 to 13% by weight and particularly preferably from 8 to 12% by weight, based on the total weight of the suspension.

[0057] If the suspension of the invention contains octyldodecanol, it is advantageous if the proportion of octyldodecanol is from 1 to 25% by weight, preferably from 4 to 10% by weight and particularly preferably from 6 to 8% by weight, based on the total weight of the suspension.

[0058] If the suspension of the invention contains caprylic / capric triglycerides, it is advantageous if the proportion of caprylic / capric triglycerides is from 1 to 25% by weight, preferably from 4 to 10% by weight and particularly preferably from 6 to 8% by weight, based on the total weight of the suspension.

[0059] If the suspension of the invention contains C12-15 alkyl benzoates, it is advantageous if the proportion of C12-15 alkyl benzoates is from 1 to 25 wt.%, preferably from 4 to 10 wt.% and particularly preferably from 6 to 8 wt.%, based on the total weight of the suspension.

[0060] If the suspension of the invention contains triethyl citrate, it is advantageous if the proportion of triethyl citrate is from 1 to 25% by weight, preferably from 4 to 10% by weight and particularly preferably from 6 to 8% by weight, based on the total weight of the suspension.

[0061] In general, embodiments are preferred if the total proportion of oils excluding isopropyl palmitate having an interfacial tension of more than 20 mN / m to the total proportion of oils having an interfacial tension of 0.5 to 15 mN / m at 20°C against water is from 50:1 to 1:1, preferably from 20:1 to 4:1 and particularly preferably from 10:1 to 7:1.

[0062] In general, it is preferred in this embodiment if the total proportion of oils excluding isopropyl palmitate having an interfacial tension of more than 20 mN / m to the total proportion of oils having an interfacial tension of 2 to 10 mN / m at 20°C against water is from 50:1 to 1:1, preferably from 20:1 to 4:1 and particularly preferably from 10:1 to 7:1.

[0063] In general, it is preferred in this embodiment if the total proportion of the oils, excluding isopropyl palmitate, having an interfacial tension of more than 20 mN / m to the total proportion of the oils having an interfacial tension of 3 to 8 mN / m at 20°C against water is from 50:1 to 1:1, preferably from 20:1 to 4:1 and particularly preferably from 10:1 to 7:1.

[0064] Further embodiments of the invention are characterized in that the oil mixture comprises at least one oil having an alkyl chain with 8 carbon atoms. Known advantageous oils of the oil mixture having an alkyl chain with 8 carbon atoms are selected from dicaprylyl ether, caprylic / capric triglyceride, coco-caprylate / caprate, and propylheptyl caprylate. Dicaprylyl ether and caprylic / capric triglyceride are particularly advantageously included in the oil mixture.

[0065] Within this embodiment, it is particularly preferred if the oils of the oil mixture are selected such that at least 8% by weight, preferably at least 13% by weight and particularly preferably at least 17% by weight of the oils, based on the total weight of the oil mixture without isopropyl palmitate, have an alkyl chain with 8 carbon atoms.

[0066] Furthermore, advantageous embodiments of the invention are characterized in that no C12-15 alkyl benzoate is present. Consequently, the proportion of C12-15 alkyl benzoate is 0 wt.%, based on the total weight of the suspension.

[0067] Furthermore, it is advantageous if vegetable oils are present in proportions of 0 to a maximum of 1 wt.%, based on the total weight of the suspension. It is particularly advantageous if vegetable oils are present in a proportion of 0 wt.% to 0.15 wt.%, based on the total weight of the suspension.

[0068] Furthermore, it is advantageous according to the invention if the suspension of the invention comprises a layered silicate, preferably disteardimonium hectorite. If a layered silicate is present, it is preferred if the proportion of the layered silicate is from 0.5 wt.% to 5 wt.%, based on the total weight of the suspension. If disteardimonium hectorite is present, it is preferred if the proportion of disteardimonium hectorite is from 0.5 wt.% to 5 wt.%, based on the total weight of the suspension.

[0069] Furthermore, it is advantageous if the preparation contains propylene carbonate, the proportion of propylene carbonate preferably being from 0.3 to 1.2% by weight, based on the total weight of the suspension.

[0070] Furthermore, it is advantageous if the suspension additionally contains at least one or more other perfume substances which are liquid under normal conditions. Advantageously chosen perfumes are selected from essential oils, methyl dihydrojasmonate, phenethyl alcohol, linalyl acetate, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-gamma-2-benzopyran, methyl cedryl ketone, hexyl salicylate, 4-t-butylcyclohexyl acetate, Tetrahydrolinalool, Orange terpenes, Heliotropin, Terpinyl acetate, omega-Pentadecalactone, Methyl-alpha-ionone, Lavandin oil, Lemon oil, 7-Acetyl-1,1,3,4,4,6-hexamethyltetralin, Coumarin, Amyl salicylate, 2-tert-Pentyl-cyclohexyl acetate, 3-Methyl-5-phenyl-1-pentanol, Cedrol, Benzyl benzoate, cashmeran, hexyl cinnamal, Butylphenyl Methylpropional, 4-(4-Hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxyaldehyde, Benzyl salicylate, Hydroxycitronellal, Benzyl benzoate, Amyl Cinnamal, Limonene, Benzyl Alcohol, Eugenol, Isoeugenol, Cinnamyl Alcohol, Farnesol, Cinnamal,Anise Alcohol, Evernia Prunastri (Extract), Benzyl Cinnamate, Methyl 2-Octynoate, Amylcinnamyl Alcohol, Evernia Furfuracea (Extract), Linalool, 2,6-Dimethyl-7-octen-2-ol, Dipropylene glycol, decanal / aldehyde c-10, Ethylvanilin, 2-Acetonapthone-1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl, Butylphenyl Methylpropional, Benzyl acetate, Ethylene brassylate, Orange oil, alpha-Isomethyl lonone, Patchouli oil, Geraniol, Citronellol, Heliotropin, Bergamot oil, Ethyllinalool, Benzyl benzoate, Vanillin, 2-Isobutyl-4-hydroxy-4-methyltetrahydropyran, Terpineol, Lavender oil, Citral, Eugenol, Hexenol cis 3, Anisealdehyde, Nerol, 3-(4-tert-butylphenyl)propanal, Vetiver Essential Oil, Geranium Öl, 2-Ethyl-4-(2',2',3'-trimethylcyclopent-3'-enyl)-but-2-enol, 2-(2'-Methylpropyl)-4-hydroxy-4-methyltetrahydropyran, 3-Hexenylacetate, Rose Oxide, Ambroxan, Bourgeonal , Silvial , Cyclemax, Florhydral, Floralozone, Hydratropic Aldehyde, Methyl-N methylanthranilate, Styrax, Celestolide, Phantolide, Tonalide,Traseolide, galaxolide, camphor, eucalyptol, menthol, cyclamen aldehyde, adipic acid diesters, alpha-amylcinnamaldehyde, alpha-methylionone benzoin, hydroxy-3-cyclohexenecarboxaldehyde, methyl benzoate, nutmeg oil, and rosemary oil. Other perfume components that may be included but are not explicitly preferred are listed in Arctander, Perfume and Flavor Chemicals (Chemicals), Vol. I and II (1969) and Arctander, Perfume and Flavor Materials of Natural Origin (1960).

[0071] Advantageously, the proportion of the further perfume substances which are liquid under normal conditions is from 0.001 to 10% by weight, preferably from 0.005 to 9% by weight and particularly preferably from 0.01 to 8% by weight, based on the total weight of the suspension.

[0072] Furthermore, it is advantageous if the suspension contains palmitamidopropyltrimonium chloride. If palmitamidopropyltrimonium chloride is present, it is advantageous if the proportion of palmitamidopropyltrimonium chloride is from 0.01 to 5 wt.%, preferably from 0.05 to 0.5 wt.%, based on the total weight of the suspension.

[0073] Furthermore, according to the invention, it is possible for the preparations to contain additional excipients. These can include stabilizers, care substances, deodorant agents, or other ingredients.

[0074] The pressure vessel of the cosmetic product is preferably characterized by being made of aluminum and / or aluminum alloys. Accordingly, the composition of the pressure vessel preferably includes aluminum and / or aluminum alloys. The use of recycled aluminum is advantageous.

[0075] A problem is that, depending on the recycling or purification process, pressure vessels containing recycled aluminum may contain impurities that interact with components of the formula in such a way that they could lead to increased textile soiling or other product deficiencies. Contamination by iron ions and / or dyes, for example, is possible and conceivable. It is conceivable that components of the can dissolve in the suspension of the invention.

[0076] The use of varnishes to prevent the interaction of the wall material of the pressure vessels with the suspension according to the invention is known.

[0077] Surprisingly, it has now been discovered that BPA-free paints can be used. Advantageously, BPA-free, polyester-based paints are used. Accordingly, the pressure vessel advantageously has a composition comprising aluminum and / or aluminum alloys, with the pressure vessel being painted on its interior surface, and the applied paint comprising polyester and containing no added BPA. Epoxy-based paints are preferably not used.

[0078] With respect to the present invention, the following in vitro method was used to test textile soiling. In vitro method for determining stain intensity Materials:

[0079] Textile: white, 100% cotton Test substances / media

[0080] a.) Sebum: Sebum according to BEY b.) Sweat: Human sweat or synthetic sweat artificial underarm sweat (according to DIN 53160-2:2010-10) c.) Comparative products

[0081] Applying the sweat (b.)) is optional. Water quality: Tap water (preferably medium to hard) Detergent: Commercial detergents, e.g., Spee Megaperls Washing machine: Commercial washing machine, e.g., Miele

[0082] The sebum causes the stain to acquire a similar yellow component. Without sebum, the stains tend to be gray. A similar method has already been described in the literature: The Trouble with Stains, SPC July, pages 25-28. Materials such as Bey's sebum are available as standard test soils from WfK-Testgewebe GmbH. Order quantities:

[0083] Product: possible range: 10 mg / cm 2 < to 50 mg / cm 2 < , preferably 13 mg / cm 2 < to 40 mg / cm 2 < , particularly preferably 15 mg / cm 2 < to 30 mg / cm 2 < Sebum: possible range: 1 mg / cm 2 < to 15 mg / cm 2 < , preferably 2 mg / cm 2 < to 10 mg / cm 2 <, particularly preferably 3 mg / cm 2 < to 6 mg / cm 2 < Sweat solution: possible range: 5 mg / cm 2 < to 40 mg / cm 2 <, preferably 7 mg / cm 2 < to 30 mg / cm 2 < Ratio of product to sebum 1:1 to 7:1, preferably 2:1 to 6:1 Ratio of product to human sweat 1:3 to 7:1, preferably 1:1 to 4:1 Color measurement:

[0084] Photometric, determination of the colorimetric values ​​in the CIE L*a*b* color space, calculation of the difference compared to an unstained reference material. Average value from at least 5 measurements per area. The dB value (yellow value) is preferably used for evaluation. Process:

[0085] 1. Pre-wash and dry the textile cuts 2. Mark the areas 3. Apply the media preferably in the following order: a.) Preparation, b.) If necessary, sweat, c.) Sebum, wait at least 10 minutes after each material until it is absorbed. Alternatively, the substances can be fully or partially mixed beforehand and then applied as a mixture. 4. Store the samples at 38°C and 80% humidity, preferably for at least 12 hours 5. Wash in a washing machine at 60°C using a cotton program, detergent dosage according to the manufacturer's instructions for medium water hardness and normal soiling level 6. Dry, e.g., at room temperature, 40°C or in a standard dryer 7. Color measurement on the stained areas and an unstained reference area and calculate the difference 8. Repeat the process from points 2 to 7 at least once, preferably four times Photometric, determination of colorimetric values ​​in the CIE L*a*b* color space. Specifically, the b-value is determined compared to unstained textiles. The difference yields the dB* value. The higher the dB* value, the more stains are present on the textile. Method for measuring interfacial tension:

[0086] The force tensiometer measurements of the oils against water were carried out using the following parameters / measuring instruments: Measuring device: Tensiometer K100 (KRÜSS) Correction: yes: Harkins & Jordan Temperature: 20°C Settings:

[0087] Measuring body: Krüss Standard Ring (De Noüy) Radius: 9.545 mm Wire diameter: 0.37 mm Parameter:

[0088] Speed ​​surface detection: 4 mm / min Sensitivity surface detection: 0,001 g Immersion depth: 3.00 mm Values: 5 - 30 Data recording: linear

[0089] The density measurements for the correction of the force tensiometer measurement were carried out under the following conditions: Method: Density (min. triple determination) Instrument: DMA 4500 Correction: yes: for viscosities < 700 mPas System: flexural resonator Temperature: 20°C Examples:

[0090] The following examples are intended to illustrate the products of this invention without intending to limit the invention to these examples. The numerical values ​​in the examples are percentages by weight based on the total weight of the suspensions.

[0091] The values ​​for yellow staining were determined according to the following procedure: 1. Pre-wash and dry the cotton textile cut-outs 2. Mark the areas 3. Mix the suspension and sebum in a ratio of 5:1 4. Apply approximately 0.3 g of this mixture to an area of ​​approximately 12 cm2< 5. Store the samples at 38°C and 80% humidity, preferably for at least 12 hours 6. Wash in a washing machine at 60°C using a cotton program, detergent dosage according to the manufacturer's instructions for medium water hardness and normal degree of soiling, using Spee Mega Pearls detergent 7. Dry at 40°C room temperature for 1 hour 8. Repeat steps 4 to 7 three times 9. Measure the color on the stained areas and an unstained reference area and calculate the difference using a Datacolor 800V device. The db* values ​​are used for evaluation.

[0092] The suspensions identified below with the abbreviation Comp.X, where X is a consecutive number, are comparative examples not according to the invention. Suspensions according to the invention are abbreviated to Ex.X, where X also stands for a consecutive number. Ingredients Example 1 See 1 See 2 See 3 See 4 See 5 Aluminum Chlorohydrate 20 20 20 20 20 20 Perfume 6,33 6,33 6,33 6,33 6,33 6,33 Propylene Carbonate 0,8 0,8 0,8 0,8 0,8 0,8 Disteardimonium Hectorite 4 4 4 4 4 4 Palmitamidopropyltrimonium Chloride 0,06 0,06 0,06 0,06 0,06 0,06 Propylene Glycol 0,04 0,04 0,04 0,04 0,04 0,04 Isopropyl Palmitate 37,77 68,77 0 0 0 0 Octyldodecanol 7 0 68,77 0 0 0 Dicaprylyl Ether 10 0 0 68,77 0 0 Caprylic / Capric Triglyceride 7 0 0 0 68,77 0 Triethyl Citrate 7 0 0 0 0 68,77 db*-Werte gegenüber unbeflecktem Textil 3,57 4,17 3,87 3,81 3,85 3,78

[0093] The above-mentioned suspensions were filled into an aerosol can with a dispensing valve as follows: 15% by weight suspension + 85% by weight propellant (a mixture of propane, isobutane, and butane). The aerosol cans, or pressurized containers, have a dispensing valve that can be manually operated to spray the suspension. The pressurized container is made of aluminum, an aluminum alloy, and / or recycled aluminum and has a protective coating on the inside that does not contain added BPA.

[0094] It turns out that, surprisingly, the use of the oil mixture according to the invention significantly reduces textile soiling after washing.

[0095] A second comparative experiment demonstrates the advantageous efficacy compared to suspensions containing silicone oils (Compare 6 and Compare 7). Examples 2 and 3 are examples according to the invention. The following suspensions were provided for this comparative experiment: Vgl. 6 Bsp. 2 Vgl. 7 Bsp. 3 Aluminum Sesquichlorohydrate 0 0 4,38 5 Aluminum Chlorohydrate 16,67 20 35 35 Triethyl Citrate 0 7 0 0 Palmitamidopropyltrimonium Chloride 0,06 0,06 0 0 Propylene Glycol 0,04 0,04 0 0 Cyclomethicone 52,38 0 35,42 0 Dimethiconol 0,75 0 0,45 0 0,1 0,1 0 0 Dimethicone 0 0 3 0 Isopropyl Palmitate 10 38,27 10 31,25 C12-15 Alkyl Benzoate 10 7 0 7 Octyldodecanol 0,8 7 0,8 0,8 Dicaprylyl Ether 0 10 0 10 Persea Gratissima Oil 0 0 0,1 0,1 Parfum 6,4 6,33 6,6 6,6 Propylene Carbonate 0,8 0,7 0,7 0,7 Disteardimonium Hectorite 2 3,5 3,5 3,5 Magnesium Aluminum Silicate 0 0 0,05 0,05 db* gegenüber unverflecktem Textil 3,45 3,03 3,83 3,33

[0096] The above-mentioned suspensions were filled into an aerosol can with a dispensing valve as follows: 15% by weight suspension + 85% by weight propellant (a mixture of propane, isobutane, and butane). The aerosol cans, or pressurized containers, have a dispensing valve that can be manually operated to spray the suspension. The pressurized container is made of aluminum, an aluminum alloy, and / or recycled aluminum and has a protective coating on the inside that does not contain added BPA.

[0097] Further examples of suspensions according to the invention are summarized in the following table. Inhaltsstoffe Bsp.4 Bsp.5 Bsp.6 Bsp.7 Bsp.8 Aluminum Chlorohydrate 35 25 20 23,33 Aluminum Sesquichlorohydrate 5 23,33 Parfum 6,6 6,33 6,4 6,4 6,5 Triethyl Citrate 7 6 Dicaprylyl Ether 10 10 9 6 12 Isopropyl Palmitate 33,05 35,04 39,7 39,4 37,77 C12-15 Alkyl Benzoate 7 6 Caprylic / Capric Trigylceride 7 8 6 8 Octyldodecanol 0,8 7 7 6 8 Propylene Carbonate 0,4 0,7 0,8 0,7 0,7 Disteardimonium Hectorite 2 3,5 4 3,5 3,5 Avocadooil 0,1 0,1 Magnesium Aluminum Silicate 0,05 Palmitamidopropyltrimonium Chlorid 0,06 0,06 0,06 Propylene Glycol 0,04 0,04 0,04

[0098] The above-mentioned suspensions were filled into an aerosol can with a dispensing valve as follows: 15 wt.% suspension + 85 wt.% propellant (mixture of propane, isobutane, and butane), 30 wt.% suspension + 70 wt.% propellant (mixture of propane, isobutane, and butane), and 40 wt.% suspension + 60 wt.% propellant (mixture of propane, isobutane, and butane). The aerosol cans, or pressurized containers, have a dispensing valve that can be manually operated to spray the suspension. The pressurized container is made of aluminum, an aluminum alloy, and / or recycled aluminum and is lined with a protective coating that does not contain added BPA.

Claims

1. Cosmetic product having a) a pressure vessel having a dispensing valve suitable for spray application; b) a silicone-, water- and mineral oil-free cosmetic suspension comprising, based on the total weight of the suspension, i. an aluminium-containing antiperspirant active ingredient, ii. 30% to 40% by weight of Isopropyl Palmitate, and iii. additionally a total of 15% to 40% by weight of an oil mixture having at least one oil with an interfacial tension with water at 20°C of more than 30.0 mN / m and at least one further oil having an interfacial tension with water at 20°C of less than 30.0 mN / m, c) a propellant comprising at least one gas selected from the following group: butane, isobutane, propane, pentanes and / or nitrogen, characterized in that both the cosmetic suspension and the propellant are present in the pressure vessel, where the weight ratio of the suspension to the propellant is from 5:95 to 60:40.

2. Cosmetic product according to Claim 1, characterized in that the antiperspirant active ingredient is selected from the group of aluminium salts with the formula [Al2(OH)mCln], where m+n=6.

3. Cosmetic product according to either of the preceding claims, characterized in that Aluminium Chlorohydrate and / or Aluminium Sesquichlorohydrate are present as antiperspirant active ingredient.

4. Cosmetic product according to any of the preceding claims, characterized in that the total proportion of the aluminium-containing antiperspirant active ingredients in the suspension is from 15% by weight to 45% by weight, preferably from 17% to 40% by weight and especially preferably 18% to 37% by weight, based on the total weight of the suspension.

5. Cosmetic product according to any of the preceding claims, characterized in that the proportion of Isopropyl Palmitate is from 31% by weight to 39% by weight, more preferably from 32% by weight to 38.5% by weight and especially preferably from 32.5% by weight to 38% by weight, based on the total weight of the suspension.

6. Cosmetic product according to any of the preceding claims, characterized in that the suspension comprises 25% to 35% by weight of an oil mixture having at least one oil with an interfacial tension with water at 20°C of more than 30.0 mN / m and at least one further oil having an interfacial tension with water at 20°C of less than 30.0 mN / m, where the figures relate to the total weight of the suspension.

7. Cosmetic product according to any of the preceding claims, characterized in that the suspension is free of oils which have an interfacial tension with water at 20°C of more than 35.0 mN / m.

8. Cosmetic product according to any of the preceding claims, characterized in that the total proportion of the oils which have an interfacial tension with water at 20°C of more than 30.0 mN / m to the total proportion of the oils which have an interfacial tension with water at 20°C of less than 30.0 mN / m, except for Isopropyl Palmitate, is from 1:0.5 to 1:4.5, preferably from 1:1.2 to 1:4 and in particular from 1:2 to 1:3.5.

9. Cosmetic product according to any of the preceding claims, characterized in that the oil mixture is characterized in that at least one oil which has an interfacial tension with water at 20°C of 0.5 to 15 mN / m, preferably from 2 to 10 mN / m and especially preferably from 3 to 8 mN / m is present.

10. Cosmetic product according to any of the preceding claims, characterized in that the oil mixture comprises Dicaprylyl Ether and one or more oils selected from the following group: Octyldodecanol, Caprylic / Capric Triglyceride, C12-15 Alkyl Benzoate, Isoamyl Laurate, Cetearyl Isononanoate, Ethylhexyl Cocoate, C12-13 Alkyl Lactate and Triethyl Citrate.

11. Cosmetic product according to any of the preceding claims, characterized in that Dicaprylyl Ether is present in the oil mixture and the proportion of Dicaprylyl Ether is from 2% to 25% by weight, preferably from 6% to 13% by weight and especially preferably from 8% to 12% by weight, based on the total weight of the suspension.

12. Cosmetic product according to any of the preceding claims, characterized in that the oil mixture comprises Caprylic / Capric Triglyceride, where the proportion of Caprylic / Capric Triglyceride is from 1% to 25% by weight, preferably from 4% to 10% by weight and especially preferably from 6% to 8% by weight, based on the total weight of the suspension.

13. Cosmetic product according to any of the preceding claims, characterized in that the oil mixture comprises Triethyl Citrate, where the proportion of Triethyl Citrate is from 1% to 25% by weight, preferably from 4% to 10% by weight and especially preferably from 6% to 8% by weight, based on the total weight of the suspension.

14. Cosmetic product according to any of the preceding claims, characterized in that the oil mixture comprises Octyldodecanol, where the proportion of Octyldodecanol is from 1% to 25% by weight, preferably from 4% to 10% by weight and especially preferably from 6% to 8% by weight, based on the total weight of the suspension.

15. Cosmetic product according to any of the preceding claims, characterized in that the oil mixture does not comprise any C12-15 Alkyl Benzoate.

16. Cosmetic product according to any of the preceding claims, characterized in that the oil mixture comprises at least one oil which has an alkyl chain with 8 carbon atoms, it being advantageous if the oils of the oil mixture are selected such that at least 25% by weight, preferably at least 35% by weight and especially preferably at least 45% by weight of the oils, based on the total weight of the oil mixture without Isopropyl Palmitate, has an alkyl chain with 8 carbon atoms.

17. Use of 30% to 40% by weight of Isopropyl Palmitate in combination with 15% to 40% by weight of an oil mixture having at least one oil with an interfacial tension with water at 20°C of more than 30.0 mN / m and at least one further oil having an interfacial tension with water at 20°C of less than 30.0 mN / m in a silicone-, water- and mineral oil-free cosmetic suspension comprising an aluminium-containing antiperspirant active ingredient for reducing textile soiling caused by aluminium-containing antiperspirant active ingredients, where the above weight figures relate to the total weight of the suspension.