Sustainable shampoo

Abstract

The invention provides sustainable shampoo. The sustainable shampoo is prepared from alpha-olefin sulfonate; betaine; hydrolyzing potato starch sodium dodecenyl succinate; and water. The sustainable shampoo is in the form of a solid structure. The sustainable shampoo is mild and non-irritant. Recyclable or biodegradable paper packages may preferably be used to reduce energy consumption. The invention also provides a method for preparing the sustainable shampoo.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of an earlier filing date of U.S. patent application 63 / 355,307, filed on June 24, 2022, the entire contents of which are hereby incorporated by reference into this application as if fully set forth herein. Technical Field

[0003] The present invention relates to the field of cosmetics, in particular to sustainable shampoo and a preparation method thereof. Background Art

[0004] Currently, there are various shampoo products for hair cleaning, but most of these shampoo products are in liquid form. It may be inconvenient for users to carry and use liquid shampoo. The increase in the use of plastic containers has caused environmental pollution. Reducing the plastic packaging of products is desired by the cosmetics and personal care industry.

[0005] Many shampoo products contain ingredients that can cause irritation, including damage to hair and irritation to skin with long-term use. For example, silicone oils such as octacyclotetrasiloxane (D4) or decamethylcyclopentasiloxane (D5) have been added to shampoos to enhance the smoothness of hair. According to reports, the European Chemicals Agency (ECHA) found that D4 and D5 are persistent, bioaccumulative, toxic, and especially highly persistent and bioaccumulative in the environment, so they are listed in Annex XIII of REACH.

[0006] US Patent No. 4,996,006 to Constantine & Weir discloses a compact needle-shaped solid shampoo composition with water as a binder. The reference discloses that the composition comprises 70% to 90% of a detergent in the form of solid needles, preferably sodium lauryl sulfate and 1% to 10% of water.

[0007] U.S. Patent No. 10,933,005 to Henkel AG & Co. KGaA discloses a hair treatment agent having an anti-rinsing effect. The reference discloses a hair treatment agent comprising: at least one anionic surfactant from the group of α-olefin sulfonates; at least one anionic surfactant from taurine; at least one amphoteric surfactant; at least one silver salt selected from silver acetate, silver adipate, silver citrate, silver galactonate, 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, galactonate, gluconic acid, malic acid, mandelic acid, lactic acid, salicylic acid, sulfuric acid, silver acetate and tartaric acid to reduce or prevent fading of dyed hair.

[0008] L'Oreal's U.S. Patent No. 10,912,728 discloses cosmetic compositions containing linear alpha-olefin sulfonates, anionic and nonionic surfactants and / or amphoteric surfactants, and methods of cosmetic treatment. The reference discloses that the composition can be in any presentation form, including, for example, aqueous, alcoholic or aqueous-alcoholic or oily solutions or suspensions; solutions or dispersions of the lotion or serum type; emulsions, aqueous or anhydrous gels or any other cosmetic form. The reference also discloses that the composition is preferably aqueous and contains water in a concentration preferably ranging from 30% to 98% by weight, in particular from 50% to 95% by weight, and better still from 60% to 90% by weight, relative to the total weight of the composition.

[0009] U.S. Patent No. 9,877,907 of Kao Corporation discloses an internal olefin sulfonate composition. The reference discloses that the composition comprises (A) an internal olefin sulfonate having 12 carbon atoms and (B) an internal olefin sulfonate having 14 carbon atoms, wherein the content mass ratio (A / B) of component (A) to component (B) is 10 / 90 to 90 / 10, and the total content of component (A) and component (B) in the internal olefin sulfonate is 60% to 100% by mass.

[0010] U.S. Patent No. 4,320,033 to Lion Corporation discloses a solid detergent composition. The reference discloses that the composition comprises: (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 specified formula, and (C) 0.1% to 20% by weight of water.

[0011] U.S. Published Application No. 20200399563 of Ecolab USA, Inc. discloses solidified nonionic surfactants. The 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 a salt thereof, an organic salt and / or a salt thereof, an aromatic sulfonate, or a combination thereof; wherein the ratio of the solid binder to the liquid surfactant is between about 4:1 and about 1:60 on an active basis; wherein the composition is solid and the liquid surfactant is solidified in the composition.

[0012] U.S. Published Application No. 20190233761 to Ecolab USA, Inc. and BASF SE discloses a solid cleaning composition. The reference discloses that the composition comprises a solidified surfactant blend comprising: (1) at least one metal alkyl ether sulfate having a specified 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 wherein the solidified surfactant blend has a flow function value of less than 0.4, as measured using a Brookfield Powder Flow Tester. The reference discloses that the solid surfactant may be α -Sodium olefin sulfonate (C14-16).

[0013] US Patent No. 10,912,956 to Mary Kay Inc. discloses cosmetic compositions and uses thereof. The reference discloses that a composition comprising pitaya fruit extract and aloe barbadensis leaf extract may further comprise sodium C14-16 olefin sulfonate.

[0014] L'Oreal's U.S. Publication Application No. 20190365623 discloses a non-sulfate concentrated rinse-type cleaning composition. The reference discloses that the composition comprises (a) about 25% to about 65% by weight of a surfactant system 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 polyglycosides; and (iii) about 2% to about 25% by weight of one or more amphoteric surfactants; and (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. The reference discloses that the composition may include C10-C24 olefin sulfonates.

[0015] Lonza Ltd.'s U.S. Published Application No. 20200129411 discloses a shampoo soap composition, at least 60 w / w% of one or more surfactants, wherein at least one or more of the surfactants comprises a polyglycerol ester. In an embodiment, the composition further comprises an anionic surfactant, including, for example, sodium lauroyl hydroxymethyl ethane sulfonate, sodium cocoyl hydroxymethyl ethane sulfonate, sodium oleoyl hydroxymethyl ethane sulfonate, olefin sulfonate, sodium lauryl sulfate, olefin sulfonate, disodium lauryl ether sulfosuccinate, sodium lauryl sulfoacetate, sulfonated methyl ester, sodium cocoyl glutamate, or sodium lauroyl sarcosinate.

[0016] WO2022027067 of Procter & Gamble Company discloses a water-soluble pouch for hair care. The water-soluble pouch comprises an inner volume and a plurality of spheres within the inner volume. The plurality of spheres comprises a cationic surfactant selected from behentrimonium methylsulfate, rapeamidopropyl dimethylamine, behentrimonium chloride, stearamidopropyl dimethylamine, and behenamidopropyl dimethylamine.

[0017] A gentle, non-irritating, healthy and environmentally friendly sustainable shampoo is desired. Summary of the invention

[0018] In view of the above, the present invention provides a sustainable shampoo and a method for preparing the same. The sustainable shampoo is solid and mild and non-irritating because there are no irritating ingredients such as silicone oil. The recyclable or biodegradable paper packaging of 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.

[0019] First, the present invention provides a sustainable shampoo comprising the following components in weight percentage (when in dry form):

[0020] 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;

[0021] about 20% to about 40% betaine, preferably about 25% to about 35% betaine, preferably about 25% to about 30% betaine, such as cocamidopropyl betaine;

[0022] about 0.5% to about 5% of hydrolyzed potato starch sodium dodecenylsuccinate, preferably about 1.0% to about 4% of hydrolyzed potato starch sodium dodecenylsuccinate, preferably about 2.0% to about 3.0% of hydrolyzed potato starch sodium dodecenylsuccinate;

[0023] From about 2% to about 10% water, preferably from about 3% to about 5% water.

[0024] In the present invention, the α-olefin sulfonate has excellent viscosity, hard water stability, detergency, foam characteristics and pH stability in a wide pH range, is easy to rinse, is biodegradable, and is mild to the skin.

[0025] PS-111, also known as Hydrolyzed Potato Starch Sodium Dodecenylsuccinate, is a proprietary polymeric surfactant derived from the reaction of food-grade potato starch dextrin with dodecenylsuccinic anhydride and can be used to improve the mildness and foam attributes of sustainable shampoos.

[0026] Cocamidopropyl Betaine can be used as an emulsifier, cleanser, and foam booster in sustainable shampoos.

[0027] Additional viscosity enhancing agents may be employed, including but not limited to PEG-150 pentaerythritol tetrastearate and PPG-2 hydroxyethyl cocamide.

[0028] Salts, including but not limited to sodium benzoate and sodium citrate, may be used to help the sustainable shampoo break down in the H20 upon reconstitution.

[0029] Hair conditioning agents can adjust the wet and dry combing properties of the hair, reduce the static effect of the hair, and enhance the softness of the hair. Examples include, but are not limited to, polyquaternium-22 (N,N-dimethyl-N-(2-propenyl)-, chloride, polymer with 2-acrylic acid); and polyquaternium-39 (polymer with N,N-dimethyl-N-2-propenyl-2-propenyl-1-ammonium chloride and 2-acrylic acid). Additional examples include PEG-7 amodimethicone (dimethyl, 3-hydroxypropylmethyl, ethoxylated, 3-bis(2-carboxyethyl)aminopropyl ether).

[0030] Additional antistatic agents may also be used including, for example, linalopropyl PG diammonium chloride phosphate (1-propylammonium, 2,3-dihydroxy-n,n-dimethyl-n-[3-(1-oxo-9,12-octadecadienylamino)propyl]), 3-phosphotriester, trichloride.

[0031] Optionally, the sustainable shampoo also contains essential oils; and / or scalp nutrients; and / or fragrance.

[0032] Essential oils are aromatic and extracted from natural plants, which can reduce nervous tension and induce pleasant feelings.

[0033] Scalp nutrients provide the scalp with the desired nutrients to keep it in a healthy state.

[0034] Optionally, the pH range of the sustainable shampoo of the present invention is about 4.0% to about 5.0%. Sustainable shampoo is generally weakly acidic and conforms to the pH range of healthy hair and scalp, so it can protect hair and scalp. The pH value of the sustainable shampoo refers to the pH value of the aqueous solution of the sustainable shampoo of the present invention.

[0035] Alternatively, the packaging material of the sustainable shampoo may be, but is not limited to, paper. The sustainable shampoo of the present invention may be packaged as, but is not limited to, a box, and its packaging material may be plastic or paper. For environmental protection and sustainable development considerations, the packaging material of the sustainable shampoo is preferably paper rather than plastic, but is not limited to paper. Compared with plastic shells, the use of paper packaging is more cost-effective and energy-efficient. In addition, compared with conventional liquid shampoos, the sustainable shampoo can reduce the use of a large amount of packaging materials and reduce transportation capacity. This sustainable shampoo can also reduce the use of water and has a wide range of applications.

[0036] The sustainable shampoo proposed by the first aspect of the present invention adopts α -Olefin sulfonates and other raw materials that are mild and non-irritating to the skin. This sustainable shampoo has rich foam, is easy to adjust, easy to rinse and works great.

[0037] Sustainable shampoo is suitable for all kinds of people and can be widely used for dry and oily hair. It is a healthy and gentle shampoo and skin care product that does not contain soap, mineral oil and silicone oil.

[0038] Secondly, the method for preparing sustainable shampoo proposed by the first aspect of the present invention is as follows:

[0039] Weigh each component according to the formula ratio, put it into a stirring pot, and stir to obtain a mixture;

[0040] • The mixture is then molded to obtain a solid sustainable shampoo.

[0041] Regarding the sustainable shampoo proposed by the second aspect of the present invention, the process of the preparation method is simple.

[0042] For environmental protection and sustainable development considerations, the sustainable shampoo of the present invention uses paper as a packaging material instead of plastic, but is not limited to paper. For example, the sustainable shampoo is packaged with recyclable or biodegradable paper to reduce plastic packaging of cleaning and care products, thereby reducing environmental pollution and damage, and achieving sustainable development. In addition, 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 can save energy, protect the environment and reduce production costs.

[0043] The shape and size of the sustainable shampoo can be changed by presetting various shapes. For example, the cross-sectional shape of the sustainable shampoo can be cylindrical, circular, rectangular, triangular or polygonal.

[0044] Advantages of the invention will be explained in part of the following description and will be apparent from the description or may be achieved by embodiments of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to explain the content of the present invention more clearly, it is illustrated in detail below with reference to the accompanying drawings and specific embodiments.

[0046] Figure 1 are drawings showing embodiments of the present invention.

[0047] Figure 2 is a picture showing the use of the present invention, where a sustainable shampoo is reconstituted in water. DETAILED DESCRIPTION

[0048] The following are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, some improvements and modifications may be made without departing from the principles of the embodiments, and these improvements and modifications are also considered to be within the protection scope of the embodiments of the present invention.

[0049] Embodiments of the present invention are further described as follows. Embodiments of the present invention are not limited to the following specific embodiments. Changes may be appropriately implemented without modifying the claims. Unless otherwise specified, the raw materials and other chemical reagents used in the embodiments of the present invention are all commercially available.

[0050] Various ingredient combinations and levels were studied until the sustainable shampoo achieved the right balance of acceptable properties, including:

[0051] a. Solubility

[0052] b. Hardness

[0053] c. Mildness

[0054] The preparation steps of sustainable shampoo can be as follows:

[0055] Weigh each component according to the formula ratio and mix well to obtain a mixture.

[0056] ·Mold the mixture into desired shape to obtain sustainable shampoo.

[0057] Example

[0058] A sustainable shampoo having the ingredients in Table 1 was prepared according to the method below.

[0059] Table 1

[0060]

[0061] illustrate :

[0062] a. Mix all powder ingredients in a beaker

[0063] b. Add liquid ingredients and mix manually between additions

[0064] c. Add water until desired consistency is reached

[0065] Refactoring

[0066] a. Add a known amount of solid product to the bottle / jar

[0067] b. Add 3.68x the mass of water to the bottle / can and shake

[0068] c. Let stand until the product is completely dissolved

[0069] d. (Optional) Shake the final solution

[0070] Sustainable shampoos are evaluated as follows:

[0071] Evaluate the user experience.

[0072] οCompared with solid shampoos on the market.

[0073] οCompared with liquid shampoos on the market.

[0074] Evaluation characteristics:

[0075] οFoam

[0076] ○Dry Combing

[0077] οWet combing

[0078] οMoisturizing

[0079] ο Rinse

[0080] ο Cleanliness

[0081] It is expected that the sustainable shampoo of the present invention will outperform other shampoos on the market. It is also expected that consumer preference for the sustainable shampoo will be higher than other products on the market.

[0082] The sustainable shampoo of the present invention can be packaged in recyclable or biodegradable cardboard or paper to reduce the use of plastic. In order to protect the environment, the use of plastics must be limited and the environment must not be polluted, so that sustainable development can be achieved. The present invention embodies the concepts of environmental protection and sustainable development and has great application prospects. The sustainable shampoo provided by the embodiment of the present invention is mild, non-irritating, healthy and safe, has high durability, and can be reused or used as a unit amount. Compared with existing shampoo products, the sustainable shampoo of the present invention is more economical and practical, which is of great significance to the promotion and use of sustainable shampoo.

[0083] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Those skilled in the art can understand all or part of the process of the above embodiment, and the equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

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

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

3. The sustainable shampoo of claim 1 further comprising one or more hair conditioning agents.

4. The sustainable shampoo of claim 3, wherein the one or more hair conditioning agents are selected from the group consisting of: Polyquaternium-22 (N,N-dimethyl-N-(2-propenyl)-, chloride, polymer with 2-acrylic acid); Polyquaternium-39 (polymer with N,N-dimethyl-N-2-propenyl-2-propen-1-ammonium chloride and 2-acrylic acid); and PEG-7 Amodimethicone (dimethyl, 3-hydroxypropylmethyl, ethoxylated, 3-bis(2-carboxyethyl)aminopropyl ether).

5. The sustainable shampoo of claim 1 further comprising one or more additional viscosity enhancing agents.

6. The sustainable shampoo according to claim 5, wherein the additional viscosity enhancing agent is selected from the group consisting of: PEG-150 pentaerythrityl tetrastearate and PPG-2 hydroxyethyl cocamide.

7. The sustainable shampoo of claim 1 further comprising one or more salts.

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

9. The sustainable shampoo of claim 1, further comprising one or more ingredients selected from essential oils; scalp nutrients; and fragrances.

10. The sustainable shampoo according to claim 1, wherein the pH of the sustainable shampoo ranges from 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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