Dry powder compositions for treating hair or skin and methods of using same

Abstract

A dry powder composition for treating hair or skin is disclosed, which comprises crosslinked polyvinylpyrrolidone (PVP) with an average particle size of 15 μm to 120 μm. The application of the dry powder composition in personal care, laundry care, home care, pet care and industrial care is also disclosed.

Description

Technical Field

[0001] The present application relates to a dry powder composition. More specifically, the present application relates to a dry powder composition comprising cross-linked polyvinylpyrrolidone (PVP) and a method of treating human / animal hair and skin using the dry powder composition. Background Art

[0002] Regular washing of hair locks is carried out with traditional liquid or gel shampoos and then rinsed with water. Frequent hair washing requires a large amount of water. In the absence or shortage of water, it becomes difficult to wash hair, hair locks or skin, and frequent washing of hair or skin with water can make the hair or skin dry and damaged. As an alternative, dry shampoo can be used. When the dry shampoo is sprayed on the hair or skin, the carrier evaporates, and the dust or sebum on the hair or skin is absorbed by the powder, and the powder can be removed by simply brushing off or wiping over the scalp or gently rubbing the skin. This saves water, is more convenient for the user, and provides the consumer with cleaner and better-feeling hair and skin.

[0003] U.S. Patent No. US9,801,793 assigned to HERB UK Ltd. discloses a product comprising a dry shampoo composition and a spray bottle containing rice husk powder, montmorillonite clay, tapioca starch, corn starch and potato starch.

[0004] French Patent No. FR2549369 assigned to Behot Francois discloses a dry shampoo composition based on polyvinylpyrrolidone (PVP), wherein the particle size range of polyvinylpyrrolidone is from 2 μm to 8 μm.

[0005] U.S. Patent No. US5,872,087 assigned to Gem Energy Industry Ltd. discloses a herbal dry shampoo composition comprising extracts of coconut (Cocoa nucifera), hibiscus (Hibiscus rosa sinesis), sapindus trifoliatus, trigonella foenum graeceum and bassia malabarica.

[0006] It has been observed that alumina and activated carbon are used in dry shampoo powders. However, they are ineffective. Disadvantages include residual residues, an ashy appearance, stickiness, etc.

[0007] In view of the above, there is still a need in the relevant art for an effective dry shampoo that: (i) helps to remove oil and sebum from hair locks, (ii) is harmless and convenient for users including bedridden patients and travelers, and (iii) can maintain the lubricating properties of hair locks. Summary of the Invention

[0008] The applicant has now surprisingly found that applying a dry shampoo formulated with crosslinked polyvinylpyrrolidone (PVP) having a specific particle size to hair or skin effectively removes sebum from the hair or skin, thereby providing a simple and effective cleaning method that is substantially completely water-free.

[0009] One aspect of the present application provides a cleaning composition for treating hair and skin, particularly a dry powder composition, which comprises crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0010] Another aspect of the present application provides a dry powder composition for treating hair and skin, which comprises crosslinked polyvinylpyrrolidone (PVP) and water in a ratio of 1:99 to 20:80; wherein the average particle size range of the crosslinked polyvinylpyrrolidone (PVP) is 15 μm to 120 μm.

[0011] Another aspect of the present application provides a dry powder composition for treating hair and skin, which comprises: (i) 0.1% to 10% by weight of crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm; (ii) 0.0% to 99% by weight of at least one alcohol; (iii) 0.0% to 99% by weight of water; (iv) 0.0% to 20% by weight of at least one diol; (v) 0.0% to 10% by weight of at least one cationic polymer, anionic polymer, amphoteric polymer or non-ionic polymer; and (vi) optionally, 0.1% to 90% by weight of at least one compound selected from hydrocarbons, dimethyl ether, hydrofluorocarbons, hydrofluoroolefins, and compressed gases including air, nitrogen, carbon dioxide and nitrous oxide.

[0012] Another aspect of the present application provides a method for cleaning human hair or a hair bundle, which comprises bringing the hair bundle into contact with a dry powder composition containing crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0013] Another aspect of the present application provides a method for reducing dirt on hair or skin or preventing dirt from depositing on hair or skin, wherein the method comprises bringing human hair into contact with a dry powder composition containing crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0014] Another aspect of the present application provides a method for treating skin acne and providing beauty to the skin, wherein the method comprises using a dry powder composition containing crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0015] Another aspect of the present application provides a method for treating pet hair or animal hair, wherein the method comprises contacting the pet hair or animal hair with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0016] Another aspect of the present application provides a method for treating the scalp, wherein the method comprises contacting the scalp with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm, wherein the scalp can be a human scalp or an animal scalp.

[0017] Another aspect of the present application provides a method for treating body odor and body oil, the method comprising contacting human skin with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0018] Another aspect of the present application provides a method for preparing personal hygiene products, the method comprising preparing personal hygiene products with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0019] Another aspect of the present application provides a method for retaining fragrance or retaining organic dyeing, the method comprising combining a fragrance or an organic dye with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more fully understand the nature and advantages of the present invention, reference should be made to the following detailed description in conjunction with the accompanying drawings, in which:

[0021] Figure 1 Illustrates the negative performance of a comparative sample with a D50 of 4 μm to 11 μm in terms of gloss, combability, residue, and cleanliness / ease of grooming compared to the dry powder composition of the present invention with a D50 of 15 μm to 25 μm.

[0022] Figure 2 Illustrates a comparison of the performance of a commercially available dry shampoo containing starch with the current performance of crosslinked polyvinylpyrrolidone (PVP) dry powder on hair.

[0023] Figure 3 Illustrates the percentage change in performance on hair relative to the untreated state as a function of red background, black background, and light background and color intensity measurements.

[0024] Figure 4Illustrated is the sorption (adsorption and / or absorption) analysis.

[0025] Figure 5 Illustrated is the acoustic analysis of the combability of a commercially available dry shampoo and a current aerosol spray containing crosslinked polyvinylpyrrolidone (PVP) over a wide frequency range. Detailed Description

[0026] Before explaining the embodiments of the present disclosure in detail, it should be understood that the application aspects of the present disclosure are not limited to the structural details and arrangements of components or steps or methods set forth in the following description or shown in the drawings. The present disclosure can have other embodiments or can be practiced or implemented in various ways. In addition, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be regarded as limiting. The following detailed discussion of various alternative and preferred embodiments will illustrate the general principles of the invention. The following detailed description is merely representative and does not limit the elements of the described invention. Those skilled in the art can make many variations, which are included within the scope of the present invention.

[0027] Unless otherwise defined herein, technical terms related to the present disclosure shall have the meanings commonly understood by those of ordinary skill in the art. In addition, unless the context otherwise requires, singular terms shall include the plural and plural terms shall include the singular.

[0028] Unless otherwise specified, all percentages, parts, ratios, and proportions used herein are by weight of the total composition. All such weights related to the listed components are based on the content of the active substance, and thus; unless otherwise stated, do not include solvents or by-products that may be included in commercially available materials.

[0029] All patents, published patent applications, and non-patent publications mentioned in this specification indicate the technical level of those skilled in the art to which the present disclosure pertains. All patents, published patent applications, and non-patent publications cited in any part of this application are hereby expressly incorporated by reference in their entirety as if each individual patent or publication was specifically and individually indicated to be incorporated by reference.

[0030] All references to singular features or limitations of the present disclosure shall include the corresponding plural features or limitations, and vice versa, unless otherwise stated or clearly implied to the contrary in the context in which the reference is made.

[0031] The following terms used in accordance with the present disclosure shall be understood to have the following meanings unless otherwise indicated.

[0032] When used in conjunction with the term "comprising", the use of the words "a" or "an" can mean "one", but it is also consistent with the meanings of "one or more", "at least one", and "one or more than one". The use of the term "or" is used to mean "and / or", unless explicitly indicated to refer only to alternatives when the alternatives are mutually exclusive, although the present disclosure supports definitions that refer only to alternatives and "and / or". Throughout this application, the term "about" is used to mean that a value includes the inherent error variations of the measuring device, the inherent error variations of the method for determining the value, or the differences that exist in the subject being studied. For example, but not by way of limitation, when the term "about" is used, the specified value can vary by plus or minus 12%, or 11%, or 10%, or 9%, or 8%, or 7%, or 6%, or 5%, or 4%, or 3%, or 2%, or 1%. The use of the term "at least one / kind" should be understood to include one / kind and any amount more than one / kind, including but not limited to 1, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, etc. The term "at least one / kind" can extend to 100 or 1000 or more depending on the term to which it is attached. Additionally, amounts of 100 / 1000 should not be considered limiting, as lower or higher limits can also produce satisfactory results. Further, the use of the term "at least one of X, Y, and Z" should be understood to include X alone, Y alone, and Z alone, as well as any combination of X, Y, and Z. The use of ordinal terms (i.e., "first", "second", "third", "fourth", etc.) is only used to distinguish two or more items and does not, unless otherwise stated, imply any order or sequence or importance or any order of addition of one item relative to another item.

[0033] As used herein, the term "comprising" (and any form of comprising, such as "comprise", "comprises"), "having" (and any form of having, such as "have", "has"), "including" (and any form of including, such as "includes", "include") or "containing" (and any form of containing, such as "contains", "contain") are inclusive or open-ended and do not exclude additional, unrecited elements or method steps. As used herein, the term "or combinations thereof" refers to all permutations and combinations of the items listed prior to that term. For example, "A, B, C, or combinations thereof" is intended to include at least one of A, B, C, AB, AC, BC, or ABC, and if order is important in a particular context, also BA, CA, CB, CBA, BCA, ACB, BAC, or CAB. This example also specifically includes combinations that contain one or more repetitions of one or more items, or one or more terms, such as BB, AAA, MB, BBC, AAABCCCC, CBBAAA, CABABB, etc. Those skilled in the art will understand that, unless otherwise specified in the context, there is generally no limitation on the number of items or terms in any combination.

[0034] As used herein, a numerical range is intended to include each number and subset of numbers contained within that range, whether specifically disclosed or not. Further, these numerical ranges should be interpreted as supporting claims directed to any number or subset of numbers within that range.

[0035] As used herein, the term "PVP" refers to polyvinylpyrrolidone.

[0036] As used herein, the term "polyol" refers to any organic compound containing the functional group "at least two hydroxyl groups", wherein the organic compound can be aliphatic, aromatic, heterocyclic, or cycloaliphatic in nature.

[0037] As used herein, the terms "preferred" or "preferably" and variations thereof refer to embodiments of the invention that provide certain advantages in certain circumstances. However, in the same or other circumstances, other embodiments may also be preferred. Furthermore, the recitation of one or more preferred embodiments does not mean that other embodiments are not available and is not intended to exclude other embodiments from the scope of the invention.

[0038] The Applicant has surprisingly found that crosslinked polyvinylpyrrolidone (PVP) having a specific particle size range provides an effective dry powder composition for a variety of end-user applications.

[0039] In one embodiment, the present application provides a dry powder composition for treating hair and skin, the dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size range of 15 μm to 120 μm. In another embodiment, the particle size range is 15 μm to 100 μm. In other embodiments, the particle size range is 15 μm to 60 μm or 15 μm to 25 μm.

[0040] According to an important embodiment of the present application, the crosslinked polyvinylpyrrolidone (PVP) is present in an amount of 0.1 wt% to 99 wt% of the total composition. In another embodiment, the crosslinked polyvinylpyrrolidone (PVP) is present in an amount of 0.25 wt% to 10 wt% of the total composition.

[0041] The dry powder composition of the present application may further comprise at least one or more diols selected from the group consisting of glycerol, diglycerol, polyethylene glycol, propylene glycol, butylene glycol, hexylene glycol, octyldecanol, polyols, and combinations thereof.

[0042] According to another embodiment, the dry powder composition can be used in personal care, laundry care, home care, pet care, and industrial care applications.

[0043] In another embodiment, the personal care composition of the present application is a leave-on volumizing composition or a rinse-out conditioning composition or a hair styling composition.

[0044] In another embodiment, the present application provides a dry powder composition for treating hair and skin, which comprises (i) crosslinked polyvinylpyrrolidone (PVP) and water in a ratio of 1:99 to 20:80; wherein the crosslinked polyvinylpyrrolidone (PVP) has an average particle size range of 15 μm to 120 μm.

[0045] In another embodiment, the crosslinked polyvinylpyrrolidone (PVP) present in the dry powder composition of the present application can advantageously swell in the presence of water and can improve hair bundle cleanliness and reduce dirt deposition, and wherein the amount of the crosslinked polyvinylpyrrolidone (PVP) ranges from 2% to 10% of the total volume.

[0046] In another embodiment, the present application provides a dry powder composition for treating hair and skin, comprising: (i) 0.1% to 10% by weight of crosslinked polyvinylpyrrolidone (PVP) with an average particle size range of 15 μm to 120 μm; (ii) 0.0% to 99% by weight of at least one alcohol; (iii) 0.0% to 99% by weight of water; (iv) 0.0% to 20% by weight of at least one diol; (v) 0.0% to 10% by weight of at least one or more cationic polymers, anionic polymers, amphoteric polymers or non-ionic polymers; and (vi) optionally, 0.1% to 90% by weight of at least one compound selected from the group consisting of hydrocarbons, dialkyl ethers, hydrofluorocarbons, hydrofluoroolefins, and compressed gases including air, nitrogen, carbon dioxide and nitrous oxide.

[0047] In another embodiment, the alcohol is selected from ethanol, phenoxyethanol, aminomethylpropanol, propylene glycol, caprylyl glycol, butylene glycol, behenyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol and combinations thereof.

[0048] In another embodiment, suitable esters used in the present application include octenyl succinate or structurally similar analogs thereof.

[0049] According to another embodiment, the hydrocarbon used in the present application may be hydrocarbon (A-40), hydrocarbon (A-46), hydrofluorocarbon-152A, microcrystalline wax and / or petrolatum.

[0050] Suitable cationic polymers used in the present application include, but are not limited to, acrylamide, methacrylamide, alkyl acrylamides and dialkyl acrylamides, alkyl methacrylamides and dialkyl methacrylamides, alkyl acrylates, alkyl methacrylates, vinyl caprolactone and vinyl pyrrolidone. The alkyl- and dialkyl-substituted monomers preferably have a C1-C7 alkyl group, more preferably a C1-C3 alkyl group. Cationic polymers that can be used include cationic guar derivatives, such as guar hydroxypropyltrimethylammonium chloride (available from Celanese Corp., Jaguar R series). Other materials include quaternary nitrogen-containing cellulose ethers (e.g., as described in U.S. Patent No. 3,962,418, incorporated herein by reference), and copolymers of etherified cellulose and starch (e.g., as described in U.S. Patent No. 3,958,581, incorporated herein by reference).

[0051] In another embodiment, the present application provides the use of the dry powder composition in skin care, hair care, animal care and industrial care applications.

[0052] In another embodiment, the present application discloses a dry powder composition for personal care applications of an end user, the dry powder composition further comprising at least one personal care additive selected from the group consisting of: preservatives, antioxidants, chelating agents, sunscreens, proteins, amino acids, vitamins, dyes, hair dyes, plant extracts, humectants, fragrances, emollients, lubricants, penetrants, thickeners, viscosity modifiers, polymers, resins, hair fixatives, film formers, surfactants, detergents, emulsifiers, soothing agents, volatiles, propellants, liquid vehicles, carriers, salts, pH regulators, neutralizing agents, hair conditioners, antistatic agents, anti-curling agents, antidandruff agents, curling agents, fluffing agents, absorbents, fatty substances, gelling agents, moisturizers, hydrophilic or lipophilic active agents, fillers, reducing agents, cosmetic oils, perfumes, liquid carriers, solvents, and combinations thereof.

[0053] In another embodiment, suitable conditioners for conditioning and / or moisturizing a hair tress include, but are not limited to, lauric acid, silicones selected from phenyltrimethylsilicone, dimethylsilicone, cyclomethicone, and aminosilicone.

[0054] According to one aspect of the present application, the dry powder composition is a dry shampoo composition. The shampoo composition may comprise a blend including corn starch, aluminum starch octenyl succinate, tapioca starch, polymethylsilsesquioxane, rice starch, acrylate copolymer, and magnesium carbonate.

[0055] According to one embodiment, the composition is formulated as a mousse, spray, gel, cream, lotion, paste, powder, or as a rinse-off product.

[0056] In yet another embodiment, the present application provides a method for cleaning human hair, comprising contacting a hair tress with a dry powder composition containing crosslinked polyvinylpyrrolidone (PVP) having an average particle size range of 15 μm to 120 μm. The hair tress, non-limitingly, is from a Caucasian, Asian, or African person, and the hair tress is selected from fine, medium, and coarse virgin, damaged, dyed, gray, or bleached hair, and wherein the hair tress has a texture including waves, curls, oily, or kinked, and wherein the method is for wet or dry hair.

[0057] In yet another embodiment, the present application provides a method for reducing dirt on hair or skin or preventing dirt from depositing on hair or skin, the method comprising contacting the hair with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size range of 15 μm to 120 μm. The dry powder can be sprayed directly on the hair or sprinkled in the user's hand and then applied to the hair or skin. The applied composition can be evenly distributed on the hair or skin by massaging the hair or skin, for example, in order to remove grease, oil and other unwanted components from the dirty hair or skin. Any excess or residual shampoo can be removed from the hair or skin by combing or simply brushing the hair or skin. The composition provides better cleaning, combability, gloss, manageability, and has fewer residual effects.

[0058] In yet another embodiment, the present application provides a method for treating skin acne and providing beauty to the skin, the method comprising using a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0059] Thus, acne is a skin disease in which inflammation occurs affecting the sebaceous glands. Acne lesions mainly involve the sebaceous glands located on the face, neck, chest and back. Closed comedones (blackheads) and open comedones (whiteheads) are both caused by hyperkeratosis of the infundibulum of the sebaceous gland ducts. These keratin plugs prevent sebum flow. The method of the present invention comprises applying the dry powder composition as a coating or dressing or as a filler to the affected area of the skin.

[0060] In yet another embodiment, the present application provides a method for treating animal hair or human hair, the method comprising contacting the animal hair / human hair with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm, wherein the animal hair is pet hair.

[0061] In yet another embodiment, the present application provides a method for treating the scalp, wherein the method comprises contacting the scalp with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm, wherein the scalp is a human scalp or an animal scalp.

[0062] In yet another embodiment, the present application provides a method for treating body odor and body oil, the method comprising contacting human skin with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0063] Thus, body oils refer to microorganisms and odors that adhere to the skin and interact with the oil-containing composition, and they cannot be effectively removed by water and soap. The current method is to remove these oils and the odors caused by them.

[0064] In yet another embodiment, the present application provides a method for preparing a personal hygiene product, the method comprising preparing the personal hygiene product with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0065] Thus, a personal hygiene product refers to any material that prevents leakage to the skin, clothing, or external environment. Personal hygiene products include tampons; mattresses; disposable adult diapers; disposable adult underwear; disposable sanitary napkins, sanitary napkins with adhesive strips and wings; and pantiliners. Most people will use personal hygiene products for some period of time at some point in their lives.

[0066] In yet another embodiment, the present application provides a method for retaining fragrance or retaining organic dyeing, the method comprising combining the fragrance or organic dye with a dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm.

[0067] Thus, retaining fragrance refers to any fixed property or fixed substance related to a fragrance, perfume, or odor, expressed as the level of fragrance intensity or effect perceived after a specific time interval, measured by a panel of experienced fragrance valuators.

[0068] In yet another embodiment, the present application provides a dry powder composition for treating "non-keratin fibers", the dry powder composition comprising crosslinked polyvinylpyrrolidone (PVP) having an average particle size of 15 μm to 120 μm. The term "non-keratin fibers" refers to fiber structures that do not contain keratin (a fibrous protein that is the main structural component of hair, feathers, hooves, claws, horns, etc.). These fiber structures can be short fibers or continuous fibers, and can be natural fibers such as cotton, silk, and mixtures thereof, or synthetic fibers such as polyacrylonitrile, nylon, polyamide, and polyester, triacetate, polyethylene, propylene, and mixtures thereof, or any combination of natural and synthetic fibers.

[0069] The following examples illustrate the present disclosure. Unless otherwise indicated, parts and percentages are by weight. Each example is provided to explain the present disclosure but is not limited thereto. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to the present disclosure without departing from the scope or spirit of the invention. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Accordingly, the present disclosure is intended to cover such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0070] These examples are presented herein for the purpose of illustrating the present disclosure and are not intended to be limiting, for example, one or more dry powder compositions and methods of using these compositions in various end - user applications.

[0071] Examples

[0072] Example 1: A dry - cleaning shampoo paste

[0073]

[0074] PVP* - a dry powder containing cross - linked polyvinylpyrrolidone with an average particle size of 15 μm to 25 μm, available from Ashland (Advantage TM Revive).

[0075] The dry - cleaning shampoo paste is prepared by adding water, glycerin, phenoxyethanol, and caprylyl glycol to the main container and mixing. PVP is added and mixed until the mixture is evenly distributed.

[0076] Example 2: A dry - cleaning shampoo gel

[0077]

[0078]

[0079] Water is added to the main container and mixing is started. PVP is added and continuously mixed until the contents are uniformly mixed. The VP / AA cross - linked polymer is added and mixed until the contents are completely dissolved. The remaining ingredients (aminomethylpropanol, glycerin, and glycerol acrylate / acrylic acid copolymer, and propylene glycol and PVM / MA copolymer, phenoxyethanol, and caprylyl glycol) are mixed separately and then mixed until a uniform mixture is obtained.

[0080] Example 3: An anhydrous aerosol spray

[0081]

[0082] Derivatives / Blends* - (corn starch, starch aluminum octenyl succinate, tapioca starch, (and) polymethylsilsesquioxane, rice starch, aluminum starch, charcoal, octenyl succinate (and) acrylate copolymer (and) magnesium carbonate)

[0083] Add ethanol to the main container and then mix. Add PVP to the ethanol until the mixture is evenly distributed. Add the remaining ingredients (derivatives, lithium magnesium dimyristate montmorillonite or bentonite, silica, glycerin, and caprylic / capric glycol) separately until a homogeneous mixture is obtained after each addition. Fill the product thus obtained into a can and charge it with a propellant. An anhydrous aerosol spray is thus obtained.

[0084] Example 4: Anhydrous Aerosol Spray

[0085]

[0086] Add ethanol to the main container and then mix. Add the dry powder containing PVP to the ethanol until the mixture is evenly distributed. Add the remaining ingredients (caprolactam / PVP / dimethylaminoethyl methacrylate, glycerin, and caprylic / capric glycol) separately until a homogeneous mixture is obtained after each addition; fill the product thus obtained into a can and charge it with a propellant. An anhydrous aerosol spray is thus obtained.

[0087] Example 5: Aerosol Spray with Low Water Content

[0088]

[0089] Mix evenly. Add the dry powder containing PVP and mix until evenly distributed. Add the remaining ingredient (glycerin) separately and mix until homogeneous after each addition. Fill the product thus obtained into a can and charge it with a propellant to obtain an aerosol spray with low water content.

[0090] Example 6: Ethanol - Free Aerosol Spray

[0091]

[0092]

[0093] Add water to the main container and mix well. Add PVP and mix until evenly distributed. Add the remaining ingredients (guar hydroxypropyltrimonium chloride, lactic acid, glycerin) separately and mix until homogeneous after each addition. Fill the product thus obtained into a can and charge it with a propellant to obtain an ethanol - free aerosol spray.

[0094] Example 7: Aerosol Foamer

[0095]

[0096] Add water to the main container and start mixing. Add PVP and mix until evenly distributed. Add the remaining ingredients (guar hydroxypropyltrimonium chloride, cetrimonium chloride, lactic acid, quaternium-22, PPG-2 hydroxyethyl cocamide, phenoxyethanol and caprylyl glycol, and glycerin) separately, mixing until homogeneous after each addition. Fill the product into a can and charge with a propellant to obtain an aerosol foam agent.

[0097] Example 8: Leave on Volumizing

[0098]

[0099]

[0100] Add water to the main container and start mixing. Add PVP and mix until evenly distributed. Add the remaining ingredients (ethyl ester of PVM / MA copolymer (50% ethanol solution), aminomethylpropanol (95%), guar hydroxypropyltrimonium chloride, polyimide 1 (30% aqueous solution), cetrimonium chloride, lactic acid, PPG-2 hydroxyethyl cocamide, oleth-20, ammonia-terminated polydimethylsiloxane / cetrimonium chloride / trideceth-10, dicetyldimethylammonium chloride, phenoxyethanol and caprylyl glycol, and glycerin / glycerol acrylate / acrylic acid copolymer) separately, mixing until homogeneous after each addition. A leave-on volumizing shampoo is obtained.

[0101] Example 9: whipped cream

[0102]

[0103]

[0104] Formulate the dry powder composition into a whipped cream. The method involves adding the different ingredients provided in the table above in batches.

[0105] Example 10: Effect of Particle Size on Hair Properties

[0106] Test parameters of hair properties such as cleanliness, residue, combability, and gloss. Test average particle sizes of 4 μm and 11 μm relative to a baseline average particle size of 25 μm. Figure 1 Details are provided. It was observed that crosslinked PVP with a DV50 particle size in the range of 15 μm to 120 μm provided improved performance relative to the range of 4 μm to 11 μm. This was determined by evaluating hair treated with sebum and then with the crosslinked PVP material. The range of 15 μm to 120 μm DV50 provided less residue, improved hair color and gloss, as well as overall cleanliness and ease of combing.

[0107] Example 11: Comparison of Hair Properties with Commercially Available Samples

[0108] The dry powder containing PVP provides improved cleaning and hair condition, as evidenced by less fiber clumping and residue, and improved manageability, shine, and color perception. A technique called hyperspectral imaging was used, which collects data in the visible spectrum and analyzes the light background and color intensity of mannequin heads before and after treatment with sebum and dry shampoo. The dry powder containing PVP restores the shine and color levels of the hair to near the untreated (before) state. Details are provided in Figure 2 and Figure 3 are provided.

[0109] Example 12: Sorption Data

[0110] Measurement results were obtained by weighing a fixed amount of material and slowly adding sebum at elevated temperature. The mixture was observed to change from a sticky (Taffy) and cohesive phase (solid-like) to a liquid-like phase with free sebum. The sorption capacity was determined by the amount of sebum adsorbed before transitioning to the liquid-like system. Compared to starch-based materials, PVP absorbs / adsorbs more than 4 times the amount of sebum. Details are as Figure 4 provided.

[0111] Example 13: Acoustics of Combability

[0112] Acoustic analysis of combability over a wide frequency range of typical human hearing shows that the dry powder containing PVP provides lower decibels and a smaller frequency range compared to commercially available controls containing starch-based materials - and improved fiber alignment and less residue / drag are observed through the hair. Details are as Figure 5 provided.

[0113] The foregoing detailed description relates to various embodiments of the technology but is not intended to be exhaustive or to limit the technology to the precise forms disclosed above. While specific embodiments and examples of the technology have been described above for purposes of illustration, those skilled in the art will recognize that various equivalent modifications are possible within the scope of the technology. For example, while steps are presented in a given order, alternative embodiments may perform the steps in a different order. The various embodiments described herein may also be combined to provide other embodiments suitable for a variety of compositions. This application includes all such improvements and modifications and is limited only by the scope of the claims.

Claims

1. Use for non-therapeutic purposes of crosslinked polyvinylpyrrolidone (PVP) as a cleaning active ingredient in a dry shampoo composition for treating hair and skin, wherein the crosslinked polyvinylpyrrolidone (PVP) has an average particle size of 15 μm to 25 μm.

2. The use according to claim 1, wherein the crosslinked polyvinylpyrrolidone (PVP) is present in the composition in an amount of 0.25% to 10% by total weight.

3. The use according to claim 1, wherein the composition further comprises glycerol, propylene glycol, butylene glycol, caprylyl glycol, or a combination thereof.

4. The use according to claim 1, wherein the composition is for personal care and animal care.

5. The use according to claim 4, wherein the personal care composition is a leave-in volumizing composition, a rinse-off conditioning composition, or a hair styling composition.

6. Use for non-therapeutic purposes of crosslinked polyvinylpyrrolidone (PVP) as a cleaning active ingredient in a dry shampoo composition for treating hair and skin, the composition comprising crosslinked polyvinylpyrrolidone (PVP) and water in a ratio of 1:99 to 20:80; wherein the PVP has an average particle size of 15 μm to 25 μm.

7. The use according to claim 6, wherein the crosslinked polyvinylpyrrolidone (PVP) is present in the composition in an amount of 0.25% to 10% by total weight.

8. The use according to claim 6, wherein the crosslinked polyvinylpyrrolidone (PVP) swells in an amount of 2% to 10% by volume and improves the cleaning of hair and skin and reduces dirt.

9. The use according to claim 6, wherein the composition further comprises glycerol, propylene glycol, butylene glycol, caprylyl glycol, or a combination thereof.

10. Use for non-therapeutic purposes of crosslinked polyvinylpyrrolidone (PVP) as a cleaning active ingredient in a dry shampoo composition for treating hair and skin, the composition comprising: (i) 0.25% to 10% by weight of crosslinked polyvinylpyrrolidone having an average particle size of 15 μm to 25 μm; (ii) 0.0% to 99% by weight of at least one alcohol; (iii) 0.0% to 99% by weight of water; (ⅳ) 0.0% to 20% by weight of at least one diol; (v) 0.0% to 10% by weight of at least one cationic polymer, anionic polymer, zwitterionic polymer, or nonionic polymer; and (vi) Optionally, 0.1% to 90% by weight of at least one compound selected from hydrocarbons, dialkyl ethers, hydrofluorocarbons, hydrofluoroolefins, and compressed gases including air, nitrogen, carbon dioxide, and nitrous oxide.

11. The use according to claim 10, wherein the composition is for use in a shampoo composition to provide improved cleaning, combability, gloss, manageability, and less residual effect.

12. The use according to claim 10, wherein the composition is formulated as a mousse, spray, gel, cream, lotion, paste, stick, or powder.

13. Use according to claim 10, wherein the composition is formulated as a rinse-off product.

14. A method for non-therapeutic cleansing of human hair or skin, the method comprising contacting a tress of hair or the skin with a composition as defined in any one of claims 1-13, wherein crosslinked polyvinylpyrrolidone (PVP) comprised in the composition is used as a cleansing active ingredient.

15. The method according to claim 14, wherein the tress of hair is from a Caucasian, Asian or African person, the tress of hair is selected from fine, medium and coarse virgin, damaged, dyed, grey or bleached hair, and wherein the tress of hair has a texture comprising waves, curls, oily or kinked.

16. The method according to claim 14, wherein the method is for wet or dry hair.

17. A method for non-therapeutic reduction of dirt on hair or skin or prevention of deposition of dirt on hair or skin, the method comprising contacting the hair or skin with a composition as defined in any one of claims 1-13, wherein crosslinked polyvinylpyrrolidone (PVP) comprised in the composition is used as a cleansing active ingredient.

18. Use of a composition as defined in any one of claims 1-13 in the preparation of a formulation for treating skin acne and providing beauty to the skin, wherein the formulation is administered by contacting the skin with the formulation, wherein crosslinked polyvinylpyrrolidone (PVP) comprised in the composition is used as a cleansing active ingredient.

19. A method for non-therapeutic treatment of animal hair, the method comprising contacting the animal hair with a composition as defined in any one of claims 1-13, wherein crosslinked polyvinylpyrrolidone (PVP) comprised in the composition is used as a cleansing active ingredient.

20. A method for non-therapeutic treatment of a scalp, the method comprising contacting the scalp with a composition as defined in any one of claims 1-13, wherein the scalp is a human scalp or an animal scalp, wherein crosslinked polyvinylpyrrolidone (PVP) comprised in the composition is used as a cleansing active ingredient.

21. A method for non-therapeutic treatment of body odor and body oils, the method comprising contacting human skin with a composition as defined in any one of claims 1-13, wherein crosslinked polyvinylpyrrolidone (PVP) comprised in the composition is used as a cleansing active ingredient.

22. A method for preparing a personal hygiene product, the method comprising preparing the personal hygiene product with a composition as defined in any one of claims 1-13, wherein crosslinked polyvinylpyrrolidone (PVP) comprised in the composition is used as a cleansing active ingredient.

23. A method for non-therapeutic retention of fragrance or retention of an organic dye, the method comprising combining a fragrance or an organic dye with a composition as defined in any one of claims 1-13, wherein crosslinked polyvinylpyrrolidone (PVP) comprised in the composition is used as a cleansing active ingredient.

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