EP-4740933-A1 - CLEANING COMPOSITION AND USE THEREOF

EP4740933A1EP 4740933 A1EP4740933 A1EP 4740933A1EP-4740933-A1

Abstract

A cleaning composition, related cleaning products, and a use of the composition in reduction of skin or eye irritation, oil control, deodorization and other aspects. The present invention takes N-long-chain acyl amino acid and alkaline amino acid/inorganic base as main surfactants without containing a thickening agent, ethoxylate, a fatty acid salt, and a moisturizer, is mild and non-irritating, and can be used for bath cream, shampoo, facial cleansing mousse, a makeup remover, an oral cavity washing product, a shaving product, a hand sanitizer, a cleaning lotion or a multifunctional cleaning product.

Inventors

ZHANG, JIAN

Assignees

Suzhou Oulit Biopharm Co., Ltd.

Dates

Publication Date: 20260513
Application Date: 20240701

Claims (20)

A cleaning composition, comprising: (a) a primary surfactant, (b) a co-surfactant, and (c) water, wherein the percentage by weight of the primary surfactant in all surfactants is greater than 50 wt%, preferably greater than 65 wt%, and more preferably greater than 80 wt%; the primary surfactant consists of a N-long-chain acyl amino acid and a basic amino acid; preferably, the percentage by weight of the N-long-chain acyl amino acid in the composition is 1-12 wt%, and the percentage by weight of the basic amino acid in the composition is 0.5-8 wt%; or, the primary surfactant consists of a N-long-chain acyl amino acid, a N-long-chain acyl amino acid dipeptide, and a basic amino acid; preferably, the sum of the percentages by weight of the N-long-chain acyl amino acid and the N-long-chain acyl amino acid dipeptide in the composition is 1-12 wt%, and the percentage by weight of the basic amino acid in the composition is 0.5-8 wt%; the percentage by weight of the co-surfactant in the cleaning composition is 0-10 wt%, preferably 0-5 wt%, and more preferably 0-1 wt%.
The cleaning composition according to claim 1, wherein the cleaning composition is substantially free of a thickening agent, preferably completely free of a thickening agent; and/or substantially free of a sulfate, preferably completely free of a sulfate; and/or substantially free of an ethoxylate, preferably completely free of an ethoxylate; and/or substantially free of a fatty acid salt, preferably completely free of a fatty acid salt; and/or substantially free of a polyol humectant, preferably completely free of a polyol humectant.
The cleaning composition according to claim 1, wherein the N-long-chain acyl group in the N-long-chain acyl amino acid is selected from one or more of octanoyl, caprinoyl, undecanoyl, lauroyl, myristoyl, pentadecanoyl, palmitoyl, stearoyl, oleoyl, linoleoyl, isostearoyl, coconut oil fatty acyl, and palm oil fatty acyl, preferably coconut oil fatty acyl and lauroyl, and most preferably lauroyl; and/or, the amino acid in the N-long-chain acyl amino acid is derived from one or more of alanine, glycine, glutamic acid, sarcosine, arginine, lysine, or (methyl) taurine, preferably alanine, and most preferably L-alanine.
The cleaning composition according to claim 1, wherein the basic amino acid is selected from one or more of arginine, lysine, citrulline, ornithine, creatine, histidine, diaminobutyric acid, and diaminopropionic acid, preferably arginine and/or lysine, and most preferably arginine.
The cleaning composition according to claim 1, further comprising: (d) a preservative, wherein the preservative is benzoic acid.
The cleaning composition according to claim 1, wherein the pH of the composition is 5-7.5, preferably 5.5-6.9, and more preferably 6-6.5; and/or, the composition possesses a low viscosity; the low viscosity refers to a viscosity at 25 °C of less than 150 mPa·s, preferably less than 120 mPa·s, and more preferably less than 100 mPa·s.
The cleaning composition according to claim 1, wherein for the detergency of the composition on a specified stained fabric as measured by the test method in QB/T1224-2012 Liquid Detergent for Fabric, the JB-01 is 0.8 or higher, the JB-02 is 0.8 or higher, and the JB-03 is 0.4 or higher and 0.8 or lower.
The cleaning composition according to claim 1, wherein the composition has better foaming performance in hard water than in soft water; and/or, the foam volumes at 30 s, 3 min, and 5 min in hard water are greater than 400 mL, preferably greater than 450 mL, and more preferably greater than 500 mL; standard for the aforementioned test: GB/T7462-1994 "Surfactant: Measurement of Foaming Performance-Modified Ross-Miles Method", instrument: 2152 modified Ross-Miles foaming tester.
The cleaning composition according to any one of claims 1-8, wherein the cleaning composition is a body wash, a shampoo, a facial mousse, a makeup remover, a mouth wash, a shaving product, a hand sanitizer, or a multi-functional cleaning product.
Use of the cleaning composition according to any one of claims 1-8 in cleaning for the elderly, the sick, or the disabled population, or in cleaning for infants or children.
Use of the cleaning composition according to any one of claims 1-8 in treating or cleaning dry, aged, or damaged skin, or in intimate care.
A no-rinse or dry-cleanable cleaning liquid, comprising the composition according to any one of claims 1-8.
A pet cleanser, comprising the composition according to any one of claims 1-8.
A shampoo or a two-in-one cleanser for shampoo and body wash for infants or the elderly, comprising the composition according to any one of claims 1-8.
A method for reducing the skin irritation or eye irritation in a cleaning composition, wherein the cleaning composition comprises: (a) a primary surfactant, (b) a co-surfactant, and (c) water; the percentage by weight of the primary surfactant in all surfactants is greater than 50 wt%, preferably greater than 65 wt%, and more preferably greater than 80 wt%; the method comprises: selecting a primary surfactant consisting of a N-long-chain acyl amino acid and a basic amino acid; or selecting a primary surfactant consisting of a N-long-chain acyl amino acid, a N-long-chain acyl amino acid dipeptide, and a basic amino acid.
The method according to claim 15, wherein the cleaning composition is substantially free of a thickening agent, preferably completely free of a thickening agent; and/or substantially free of a sulfate, preferably completely free of a sulfate; and/or substantially free of an ethoxylate, preferably completely free of an ethoxylate; and/or substantially free of a fatty acid salt, preferably completely free of a fatty acid salt; and/or substantially free of a polyol humectant, preferably completely free of a polyol humectant.
The method according to claim 15, wherein a preservative in the cleaning composition is benzoic acid.
The method according to claim 15, wherein the N-long-chain acyl amino acid is lauroyl alanine, the basic amino acid is arginine, and the N-long-chain acyl amino acid dipeptide is lauroyl alanyl alanine.
A method for improving the easy-to-rinse or water-saving performance in a cleaning composition, wherein the cleaning composition comprises: (a) a primary surfactant, (b) a co-surfactant, and (c) water; the percentage by weight of the primary surfactant in all surfactants is greater than 50 wt%, preferably greater than 65 wt%, and more preferably greater than 80 wt%; the method comprises: selecting a primary surfactant consisting of a N-long-chain acyl amino acid and a basic amino acid; or selecting a primary surfactant consisting of a N-long-chain acyl amino acid, a N-long-chain acyl amino acid dipeptide, and a basic amino acid; or selecting a primary surfactant consisting of a N-long-chain acyl amino acid and an inorganic base.
The method according to claim 19, wherein the cleaning composition is substantially free of a thickening agent, preferably completely free of a thickening agent; and/or substantially free of a sulfate, preferably completely free of a sulfate; and/or substantially free of an ethoxylate, preferably completely free of an ethoxylate; and/or substantially free of a fatty acid salt, preferably completely free of a fatty acid salt; and/or substantially free of a polyol humectant, preferably completely free of a polyol humectant.

Description

TECHNICAL FIELD The present disclosure relates to the field of cleaning composition technology, and in particular, to a cleaning composition comprising a N-long-chain acyl amino acid and a basic amino acid/inorganic base as the primary surfactant, and use thereof in cosmetics and various cleaning products. BACKGROUND In the past two decades, washing products have been more and more subdivided in the aspects of categories, concepts, effects, channels, consumer populations, etc. However, the ultimate subdivision also brings troubles to many consumers in selection and use, such that the concept of "multi-effect and all-in-one" of the product is increasingly mentioned. At present, the facial cleansing, makeup removal, shaving, body wash, and shampoo are completely different product types, and have different formula design concepts, ingredient combinations, and the like. Facial cleansing products mainly consist of an alcohol (for dissolving, dispersing, and other effects), a surfactant such as sodium lauroyl glutamate, a co-surfactant (for foaming and other effects), a filler such as modified starch (for adjusting the paste-forming point, filling and softening paste), an emulsifier such as A165 (emulsifying part of unneutralized fatty acids or part of alcohol, lipids, etc.), a humectant, a preservative, a fragrance, etc. Body wash products mainly consist of a primary surfactant (generally, sodium laureth sulfate) + a co-surfactant (cocamidopropyl betaine, etc.) + a thickening agent + an ester supplement (jojoba oil, etc.) + a conditioner (a polyol) + an adjunct. Shampoo products mainly are composed of: water + a surfactant (the primary surfactant is generally sodium laureth sulfate) + a thickening agent + a pH regulator + a cationic conditioner + a fragrance + a chelating agent + a preservative, etc., and the auxiliary (optionally added) ingredients include: a viscosity regulator, an anti-dandruff agent, a pearlizing agent, a humectant, a pigment, a plant extract, etc. As representative makeup removal products, the makeup removal oil mainly consists of a light lipid + a surfactant + an active ingredient, while the makeup removal lotion mainly consists of water + a light lipid + a surfactant + an active ingredient. The makeup removal water mainly consists of water + a surfactant + an active ingredient. The surfactant is generally a polyglycerol ester surfactant. Common surfactants in the makeup removal water include: PEG-6 caprylic/capric glyceride, PEG-7 caprylic/capric glyceride, PEG-8 caprylic/capric glyceride, PEG-7 glyceryl cocoate, poloxamer 184, Tween series, and the like. For shaving products, the formulas are generally subjected to conventional soap-based emulsification, resulting in a dispersion system of alkali metal soap in glycerol and water. Fatty acid salts are used as the emulsifier to produce abundant and fine foams. In order to improve the comfort of the skin, some additional emollients, humectants, cooling agents, and astringents may be added to the formula. Conventional anionic surfactants such as alkyl sulfates and polyoxyethylene alkyl sulfates have been widely used as the surfactant for hair/body cleaning bases. However, with the increasing use of shampoo/body wash products in recent years, they may sometimes lead to dry and irritated feels. There is a need for cleansers with less irritation. In addition, such surfactants are petroleum-derived surfactants, contrary to the current sustainable development and environmental conservation orientation. I. Sulfate surfactants Most current cleaning products are based on surfactants containing sulfates, such as sodium lauryl sulfate (SLS), ammonium lauryl sulfate (ALS), sodium laureth sulfate (SLES), or ammonium laureth sulfate (ALES). These sulfate surfactants integrate the advantages of cost-efficiency, satisfying cleaning and foaming performance, etc. However, as described in EP3582748A1, it is known that surfactants containing sulfate salts (e.g., SLS) tend to cause tolerance problems, especially on the skin and eyes. Another disadvantage of sulfate-containing surfactants is their tendency to remove natural lipids, fats or proteins on the surface of the skin, scalp, or hairs. In the long term, repeated use of personal cleaning products comprising sulfate-containing surfactants may cause irritation to the skin or scalp and/or result in damage to hairs. II. Ethoxylate surfactants The most typical ethoxylate surfactant is sodium laureth sulfate (SLES or AES). AES is widely used due to its good detergency and ease to thicken by adding sodium chloride (although it is convenient to add a large amount of sodium chloride for thickening, the irritation of sodium chloride to the eyes is usually underestimated). Although milder than alkyl sulfates, it is still moderately irritant (see GB2598154A). In addition, ethoxylate surfactants contain a large amount of non-renewable carbon from ethylene oxide and thereby cause safety concerns (dioxane contained in th