Sustainable shampoo

Abstract

The present invention provides a sustainable shampoo comprising alpha-olefin sulfonate, betaine, hydrolyzed potato starch sodium dodecenyl succinate, and water. The sustainable shampoo is in the form of a solid structure. The sustainable shampoo is gentle and non-irritating. Preferably, a recyclable or biodegradable paper packaging can be used to reduce energy consumption. The present invention also provides a method for preparing the sustainable shampoo.

Description

Technical Field

[0001] (Cross - Reference to Related Applications) This application claims the benefit of U.S. Patent Application No. 63 / 355,307, filed on June 24, 2022, and the entire disclosure of that application is incorporated herein by reference as if fully set forth herein.

[0002] (Field of the Invention) The present invention relates to the field of cosmetics, specifically to sustainable shampoos and methods for their preparation.

Background Art

[0003] Currently, there are various shampoo products for hair washing, most of which are in liquid form. It can be inconvenient for users to carry and use liquid shampoos. The increasing use of plastic containers causes environmental pollution. Reducing the plastic packaging of products is desirable in the cosmetics and personal care industries.

[0004] Many shampoo products contain ingredients that can induce irritations including hair damage and skin irritation during long - term use. For example, silicone oils such as octamethylcyclotetrasiloxane (D4) or decamethylcyclopentasiloxane (D5) are added to shampoos to enhance hair smoothness. The European Chemicals Agency (ECHA) has reported finding that D4 and D5 are persistent, bioaccumulative, and toxic in the environment, particularly highly persistent and bioaccumulative, and they are in Annex XIII of REACH.

[0005] U.S. Patent No. 4,996,006 to Constantine & Weir discloses a compact, acicular - shaped solid shampoo composition having water as a binder. This reference discloses that the composition contains 70% - 90% of a solid acicular - shaped detergent, preferably sodium lauryl sulfate, and 1% - 10% of water.

[0006] U.S. Patent No. 10,933,005 to Henkel AG & Co. KGaA discloses a hair treatment agent having the effect of preventing color fading. This reference discloses at least one anionic surfactant from the group of alpha-olefin sulfonates, at least one anionic surfactant from the group of taurides, at least one amphoteric surfactant, and at least one silver salt selected from silver acetate, silver adipate, silver citrate, silver galactarate, silver gluconate, silver lactate, silver malate, silver mandelate, silver salicylate, silver succinate, silver sulfate, and silver tartrate, and at least one organic acid selected from adipic acid, succinic acid, citric acid, acetic acid, galactaric acid, gluconic acid, malic acid, mandelic acid, lactic acid, salicylic acid, sulfuric acid, silver acetate, and tartaric acid for reducing or preventing color fading from dyed hair, and discloses a hair treatment agent containing the same.

[0007] U.S. Patent No. 10,912,728 to L’Oreal discloses a cosmetic composition containing a linear alpha-olefin sulfonate, an anionic surfactant, and a nonionic and / or amphoteric surfactant, and a cosmetic treatment method. This reference discloses that the composition can be in any presentation form, including, for example, an aqueous, alcoholic or aqueous-alcoholic, or oily solution or suspension, lotion or serum-type solution or dispersion, emulsion, aqueous or anhydrous gel, or any other cosmetic form. This reference also discloses that the composition is preferably aqueous and contains water at a concentration in the range of preferably 30% to 98% by weight, particularly 50% to 95% by weight, more preferably 60% to 90% by weight, based on the total weight of the composition.

[0008] U.S. Patent No. 9,877,907 to Kao Corporation discloses an internal olefin sulfonate composition. This reference discloses that the composition contains (A) an internal olefin sulfonate having 12 carbon atoms and (B) an internal olefin sulfonate having 14 carbon atoms, and the mass ratio by content of component (A) to component (B) (A / B) is from 10 / 90 to 90 / 10, and the total content of component (A) and component (B) in the internal olefin sulfonate is from 60 to 100% by mass.

[0009] U.S. Patent No. 4,320,033 to Lion Corporation discloses a solid detergent composition. This reference discloses that the composition contains (A) 40 to 89.9% by weight of at least one linear alpha-olefin sulfonate having 12 to 28 carbon atoms, (B) 10 to 60% by weight of at least one tertiary amine oxide having a specific formula, and (C) 0.1 to 20% by weight of water.

[0010] U.S. Patent Application Publication No. 2020 / 0399563 to Ecolab USA, Inc. discloses the solidification of nonionic surfactants. This reference discloses a composition comprising a liquid nonionic surfactant and a solid binder comprising a natural polymer, urea, a urea derivative, a polyacrylate, a chelating agent, PEG, an inorganic acid and / or its salt, an organic salt and / or its salt, an aromatic sulfonate, or a combination thereof, wherein the solid binder and the liquid surfactant are in a ratio of about 4:1 to about 1:60 by active substance, the composition is solid, and the liquid surfactant is solidified in the composition.

[0011] U.S. Patent Application Publication No. 2019 / 0233761 to Ecolab USA, Inc. and BASF SE discloses a solid cleaning composition. This reference discloses that the composition comprises a solidified surfactant blend comprising (1) at least one metal alkyl ether sulfate having a specific formula and (2) a solid surfactant, wherein (1) and (2) are present in a weight ratio of about 30:70 to about 40:60 based on the total weight of the solidified surfactant blend, and the solidified surfactant blend has a flow function value of less than 0.4 when determined using a Brookfield powder flow tester. This reference discloses that the solid surfactant can be sodium alpha-olefin sulfonate (C14-16).

[0012] U.S. Patent No. 10,912,956 to Mary Kay Inc. discloses a cosmetic composition and its use. This reference discloses that a composition containing Hylocereus undatus fruit extract and Aloe barbadensis leaf extract may also contain sodium C14-16 olefin sulfonate.

[0013] U.S. Patent Application Publication No. 2019 / 0365623 to L’Oreal discloses a non-sulfate concentrated rinse-off cleaning composition. This reference discloses that the composition comprises (a) a surfactant system of about 25 to about 65% by weight, comprising (i) about 10 to about 50% by weight of one or more non-sulfate anionic surfactants, salts thereof, or mixtures thereof, (ii) about 2 to about 25% by weight of one or more alkyl polyglucosides, and (iii) about 2 to about 25% by weight of one or more amphoteric surfactants, (b) about 0.1 to about 10% by weight of one or more conditioning agents, and (c) about 35 to about 75% by weight of water. This reference discloses that the composition may contain C10-C24 olefin sulfonate.

[0014] U.S. Patent Application Publication No. 2020 / 0129411 to Lonza Ltd. discloses a shampoo bar composition comprising at least 60 w / w% of one or more surfactants, with at least one or more of the surfactants including polyglyceryl esters. In certain embodiments, the composition also contains anionic surfactants such as, for example, sodium lauroyl methyl isethionate, sodium cocoyl methyl isethionate, sodium oleoyl methyl isethionate, olefin sulfonate, sodium lauryl sulfate, olefin sulfonate, disodium laureth sulfosuccinate, sodium lauryl sulfoacetate, sulfonated methyl ester, sodium cocoyl glutamate, or sodium lauroyl sarcosinate.

[0015] International Publication No. 2022 / 027067 to Procter & Gamble Company discloses a water-soluble pouch for hair care. The water-soluble pouch includes an internal volume and a plurality of prills within the internal volume. The plurality of prills contain a cationic surfactant selected from behentrimonium methosulfate, brassicaamidopropyldimethylamine, behentrimonium chloride, stearamidopropyldimethylamine, and behenamidopropyldimethylamine.

Summary of the Invention

Problems to be Solved by the Invention

[0016] A mild, non-irritating, healthy, and environmentally friendly sustainable shampoo is desired.

Means for Solving the Problems

[0017] In view of the above, the present invention provides a sustainable shampoo and a method for preparing the same. The sustainable shampoo is in a solid state and is mild and non-irritating because it does not contain irritating components such as silicone oil. The recyclable or biodegradable paper packaging for the sustainable shampoo can reduce energy consumption and protect health and the environment. The sustainable shampoo can be used in a solid state or the user can add water to the sustainable shampoo before use.

[0018] First, the present invention provides a sustainable shampoo comprising the following components in weight percent (in the case of the dry form). About 30% to about 50% alpha-olefin sulfonate, preferably about 35% to about 45% alpha-olefin sulfonate, preferably about 35% to about 40% alpha-olefin sulfonate; About 20% to about 40% betaine, preferably about 25% to about 35% betaine, preferably about 25% to about 30% betaine, for example, cocamidopropyl betaine; About 0.5% to about 5% sodium hydrolyzed potato starch dodecenyl succinate, preferably about 1.0% to about 4% sodium hydrolyzed potato starch dodecenyl succinate, preferably about 2.0% to about 3.0% sodium hydrolyzed potato starch dodecenyl succinate; About 2% to about 10% water, preferably about 3% to about 5% water.

[0019] In the present invention, alpha-olefin sulfonate has excellent viscosity, hard water stability, detergency, foam characteristics, and pH stability over a wide pH range. This makes it easy to rinse, biodegradable, and mild to the skin.

[0020] NATRASURF® PS-111, also known as hydrolyzed potato starch sodium dodecenyl succinate, is a proprietary polymeric surfactant derived from the reaction of a food-grade potato starch dextrin with dodecenyl succinic anhydride and can be used to improve the mildness and foaming characteristics of sustainable shampoos.

[0021] Cocamidopropyl betaine can be used as an emulsifier, detergent, and foam booster in sustainable shampoos.

[0022] Additional thickeners may be used including, but not limited to, PEG-150 pentaerythrityl tetrastearate and PPG-2 hydroxyethyl cocamide.

[0023] Salts including, but not limited to, sodium benzoate and sodium citrate may be used to assist in decomposition in H2O when the sustainable shampoo is reconstituted.

[0024] Hair conditioning agents can condition combability characteristics of hair when wet and dry, reduce the electrostatic effect of hair, and enhance the flexibility of hair. Examples include, but are not limited to, polyquaternium-22 (a polymer having N,N-dimethyl-N-(2-propenyl)-, chloride, 2-propenoic acid); and polyquaternium-39 (a polymer having N,N-dimethyl-N-2-propenyl-2-propen-1-aminium chloride and 2-propenoic acid). Additional examples include PEG-7 amodimethicone (dimethyl, 3-hydroxypropylmethyl, ethoxylated, 3-bis(2-carboxyethyl)aminopropyl ether).

[0025] For example, additional antistatic agents including linoleamidopropyl PG-dimonium chloride phosphate (1-propanaminium, 2,3-dihydroxy-n,n-dimethyl-n-[3-(1-oxo-9,12-octadecadienylamino)propyl]-, triphosphate triester, trichloride) can also be used.

[0026] Optionally, the sustainable shampoo further comprises essential oils, and / or scalp nutrients, and / or fragrances.

[0027] Essential oils that are aromatic and extracted from natural plants can reduce nerve tension and bring about a pleasant feeling.

[0028] Scalp nutrients can provide the desired nutrients to the scalp to maintain the scalp in a healthy state.

[0029] Optionally, the pH range of the sustainable shampoo of the present invention is from about 4.0% to about 5.0%. The sustainable shampoo is generally weakly acidic and can protect the hair and scalp because it conforms to the pH range of healthy hair and scalp. Here, the pH value of the sustainable shampoo refers to the pH value of an aqueous solution of the sustainable shampoo of the present invention.

[0030] Alternatively, the packaging material of the sustainable shampoo can be, but is not limited to, paper. The sustainable shampoo of the present invention can be packaged as a box, but is not limited thereto, and its packaging material can be plastic or paper. For environmental protection and sustainable development, the packaging material of the sustainable shampoo is preferably paper other than plastic, but is not limited to paper. By using paper packaging, it is possible to be more cost-effective and energy-efficient compared to using a plastic case. Furthermore, compared to conventional liquid shampoos, the sustainable shampoo can reduce the use of a large amount of packaging material and reduce the transportation volume. The sustainable shampoo can also reduce water usage and has a wide range of applications.

[0031] The sustainable shampoo proposed according to the first aspect of the present invention employs alpha-olefin sulfonate and other raw materials that are mild and non-irritating to the skin. The sustainable shampoo has good foaming, is well-adjusted, is easy to rinse, and is excellent in use.

[0032] The sustainable shampoo is suitable for all kinds of people and can be widely used for dry and oily hair. It is a healthy and mild shampoo and skin care product that does not contain soap base, mineral oil, and silicone oil.

[0033] Secondly, the method for preparing the sustainable shampoo proposed by the first aspect of the present invention is as follows. ● Weigh each component according to the blending ratio, put it into a stirring pot, and obtain a mixture after stirring. ● Then, shape the mixture to obtain a solid sustainable shampoo.

[0034] Regarding the sustainable shampoo proposed by the second aspect of the present invention, the process of the preparation method is simple.

[0035] For environmental protection and sustainable development, the sustainable shampoo of the present invention adopts a packaging material as paper other than plastic, but is not limited to paper. For example, the sustainable shampoo is packaged with recyclable or biodegradable paper so as to reduce the plastic packaging of cleaning and care products, thereby reducing environmental pollution and damage and achieving sustainable development. Furthermore, the sustainable shampoo mentioned in the present invention also has good biodegradability. Together with the biodegradable paper packaging, the sustainable shampoo of the present invention is energy-saving, environmentally friendly, and can reduce production costs.

[0036] The shape and size of the sustainable shampoo can vary by presetting various shapes. For example, the cross-sectional shape of the sustainable shampoo can be cylindrical, circular, rectangular, triangular, or polygonal.

[0037] The advantages of the present invention are described in part in the following specification, and some of them are obvious according to the specification or can be realized through the embodiments of the present invention.

Brief Description of the Drawings

[0038] To more clearly explain the content of the present invention, details are shown below in combination with the accompanying drawings and specific embodiments.

Figure 1

Figure 2

Mode for Carrying Out the Invention

[0039] The following are preferred embodiments of the present invention. It should be pointed out that those skilled in the art can make some improvements and modifications on the premise that the present invention does not deviate from the principle of the embodiment, and these improvements and modifications are also regarded as within the protection scope of the embodiment of the present invention.

[0040] The embodiments of the present invention will be further described as follows. The embodiments of the present invention are not limited to the following specific embodiments. Appropriate changes can be made without amending the claims. Unless otherwise specified, all raw materials and other chemical reagents used in the embodiments of the present invention are commercially available.

[0041] Various combinations and amounts of components were investigated until the sustainable shampoo had the correct balance of acceptable properties, including the following. a. Dissolution b. Hardness c. Mildness

[0042] The preparation process of the sustainable shampoo can be as follows. ● Weigh each component according to the mixing ratio and mix them uniformly to obtain a mixture. ● Mold the mixture into the required shape to obtain a sustainable shampoo.

Examples

[0043] A sustainable shampoo having the components shown in Table 1 was prepared according to the following method.

[0044]

Table 1

[0045] Instructions: a. Mix all the powder components in a beaker. b. Add the liquid components and mix by hand between additions. c. Add water until the desired consistency is reached.

[0046] Reconstitution a. Add a known amount of the solid product to a bottle / jar. b. Add 3.68 times the mass of water to the bottle / jar and shake. c. Let stand until the product is completely dissolved. d. (Optional) Shake the final solution.

[0047] Sustainable shampoos can be evaluated as follows. ● Evaluation of the user experience. ○ Compare with solid shampoos available on the market. ○ Compare with liquid shampoos available on the market. ● Characterization evaluation: ○ Foam ○ Combability when dry ○ Combability when wet ○ Moisturization ○ Rinsing ○ Cleanliness

[0048] The sustainable shampoo of the present invention is expected to be superior to other shampoos available on the market. It is also anticipated that the consumer preference for sustainable shampoos will be higher than that for other products available on the market.

[0049] The sustainable shampoo of the present invention can be packaged in recyclable or biodegradable cardboard or paper so as to reduce the use of plastic. In order to protect the environment, it is possible to achieve sustainable development by restricting the use of plastic and not polluting the environment. The present invention embodies the concepts of environmental protection and sustainable development and has excellent application prospects. The sustainable shampoo provided by an embodiment of the present invention is mild, non-irritating, healthy and safe, has high durability, and can be used repeatedly or as a unit amount. Compared with existing shampoo products, the sustainable shampoo of the present invention is more economical and practical and has great significance for the popularization of the use of sustainable shampoo.

[0050] The above disclosure is only a better embodiment of the present invention and, of course, cannot be used to limit the scope of the rights of the present invention. Those skilled in the art can understand all or part of the processes of the above embodiments, and equivalent changes made in accordance with the scope of the claims of the present invention are still included within the scope of the present invention.

[0051] 〔Embodiments〕 (1) A sustainable shampoo, wherein the sustainable shampoo comprises the following components: About 30% to about 50% of alpha-olefin sulfonate, About 20% to about 40% of betaine, About 0.5% to about 5% of hydrolyzed potato starch dodecenyl succinate sodium, and A sustainable shampoo containing about 2% to about 10% of water. (2) The sustainable shampoo according to Embodiment 1, wherein the betaine is cocamidopropyl betaine. (3) The sustainable shampoo according to Embodiment 1, further comprising one or more hair conditioning agents. (4) The sustainable shampoo according to embodiment 3, wherein the one or more hair conditioning agents are selected from the group consisting of polyquaternium-22 (polymer having N,N-dimethyl-N-(2-propenyl)-, chloride, and 2-propenoic acid); polyquaternium-39 (polymer having N,N-dimethyl-N-2-propenyl-2-propen-1-aminium chloride and 2-propenoic acid); and PEG-7 amodimethicone (dimethyl, 3-hydroxypropylmethyl, ethoxylated, 3-bis(2-carboxyethyl)aminopropyl ether). (5) The sustainable shampoo according to embodiment 1, further comprising one or more additional thickeners.

[0052] (6) The sustainable shampoo according to embodiment 5, wherein the additional thickener is selected from the group consisting of pentaerythrityl tetra-stearate PEG-150 and PPG-2 hydroxyethyl cocamide. (7) The sustainable shampoo according to embodiment 1, further comprising one or more salts. (8) The sustainable shampoo according to embodiment 7, wherein the one or more salts are selected from the group consisting of sodium benzoate and sodium citrate. (9) The sustainable shampoo according to embodiment 1, further comprising one or more components selected from essential oils, scalp nutrients, and fragrances. (10) The sustainable shampoo according to embodiment 1, wherein the pH range of the sustainable shampoo is 4.0 to 5.0.

[0053] (11) The sustainable shampoo according to embodiment 1, wherein the sustainable shampoo uses recyclable or biodegradable paper packaging.

Claims

1. A sustainable shampoo, wherein the sustainable shampoo comprises the following components: About 30% to about 50% alpha-olefin sulfonate, About 20% to about 40% betaine, About 0.5% to about 5% hydrolyzed potato starch sodium dodecenyl succinate, and A sustainable shampoo containing about 2% to about 10% water.

2. The sustainable shampoo according to claim 1, wherein the betaine is cocamidopropyl betaine.

3. The sustainable shampoo according to claim 1, further comprising one or more hair conditioning agents.

4. The one or more hair conditioning agents are selected from the group consisting of polyquaternium-22 (N,N-dimethyl-N-(2-propenyl)-, chloride, polymer having 2-propenoic acid); polyquaternium-39 (N,N-dimethyl-N-2-propenyl-2-propen-1-aminium chloride and polymer having 2-propenoic acid); and PEG-7 amodimethicone (dimethyl, 3-hydroxypropylmethyl, ethoxylated, 3-bis(2-carboxyethyl)aminopropyl ether). The sustainable shampoo according to claim 3.

5. The sustainable shampoo according to claim 1, further comprising one or more additional thickeners.

6. The additional thickener is selected from the group consisting of PEG-150 pentaerythrityl tetrastearate and PPG-2 hydroxyethyl cocamide. The sustainable shampoo according to claim 5.

7. The sustainable shampoo according to claim 1, further comprising one or more salts.

8. The one or more salts are selected from the group consisting of sodium benzoate and sodium citrate. The sustainable shampoo according to claim 7.

9. The sustainable shampoo according to claim 1, further comprising one or more components selected from essential oils, scalp nutrients, and fragrances.

10. The sustainable shampoo according to claim 1, wherein the pH range of the sustainable shampoo is 4.0 to 5.

0.

11. The sustainable shampoo according to claim 1, wherein the sustainable shampoo uses recyclable or biodegradable paper packaging.

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