阅读说明：本技术 一种低刺激性的清洁组合物及其制备方法 (Low-irritation cleaning composition and preparation method thereof ) 是由 罗财通 崔英云 李传茂 张伟杰 张楚标 于 2019-09-25 设计创作，主要内容包括：本发明属于化妆品技术领域,具体地涉及一种低刺激性的清洁组合物。本发明的清洁组合物,包括表面活性剂和脂肪醇。通过表面活性剂与脂肪醇的复配,有效降低了表面活性剂的用量,同时由于脂肪醇能插入到表面活性剂形成的胶束的亲水基之间,使之形成更大的胶束结构,进一步降低了表面活性剂的刺激性,具有温和、无刺激,适合敏感肌使用等特点。(The invention belongs to the technical field of cosmetics, and particularly relates to a low-irritation cleaning composition. The cleaning composition of the present invention comprises a surfactant and a fatty alcohol. The surfactant and the fatty alcohol are compounded, so that the dosage of the surfactant is effectively reduced, and meanwhile, the fatty alcohol can be inserted between hydrophilic groups of micelles formed by the surfactant to form a larger micelle structure, so that the irritation of the surfactant is further reduced, and the preparation method has the characteristics of being mild, non-irritant, suitable for sensitive muscles and the like.)

1. a cleaning composition characterized by comprising the following components in weight percent: 0.5-10% of surfactant and 1-10% of fatty alcohol;

Preferably, 0.5-3% of a surfactant;

Preferably, the fatty alcohol is 1-5%.

2. The composition of claim 1, wherein the surfactant is a combination of one or more of sodium laureth-3 sulfate, sodium cocoyl glycinate, lauramidopropyl betaine, sodium methylcocoyltaurate, sodium lauryl sulfate, sodium lauroamphoacetate, disodium lauriminodiacetate, lauryl glucoside, sodium lauroyl glutamate; preferably one or more of sodium laureth-3 sulfate, lauramidopropyl betaine and lauryl glucoside; more preferably lauramidopropyl betaine.

3. The composition of claim 1, wherein the fatty alcohol is one or more of lauryl alcohol, stearyl alcohol, cetyl alcohol, cetearyl alcohol, behenyl alcohol in combination; preferably one or more of lauryl alcohol, cetostearyl alcohol and behenyl alcohol; more preferably cetearyl alcohol.

4. The composition of claim 1, further comprising in weight percent:

1-15% of polyol; preferably 3 to 8%;

0.2 to 1 percent of preservative; preferably 0.3-0.6%;

the balance of deionized water.

5. The composition of claim 4, wherein the polyol is a combination of one or more of glycerol, propylene glycol, 1, 3-propanediol, 1, 3-butanediol, dipropylene glycol, sorbitol, diglycerol; preferably one or more of glycerol, 1, 3-propylene glycol and sorbitol; more preferably glycerol.

6. The composition of claim 4, wherein the preservative is a combination of one or more of p-hydroxyacetophenone, phenoxyethanol, chlorphenesin, methylparaben, sorbitan caprylate, benzoic acid, gluconolactone, sodium benzoate; preferably one or more of phenoxyethanol and chlorphenesin; more preferably phenoxyethanol.

7. The composition of any of claims 1-6, in the form of a cleansing product, comprising a facial cleanser, a facial gel, a facial lotion, a facial cream.

8. Use of a composition according to any of claims 1 to 6 for the preparation of a product for cleansing the skin or hair.

9. A method of preparing the composition of claim 4, comprising the steps of:

(1) Preparing raw materials according to the composition;

(2) Adding water, polyalcohol and surfactant into an emulsifying pot, stirring for dissolving, heating to 85-95 deg.C, and keeping the temperature for 10-20 min; preferably, heating to 90 ℃; preferably, the incubation is for 15 minutes;

(3) Putting fatty alcohol into an emulsifying pot, and stirring, dissolving and dispersing uniformly at the temperature of 80-90 ℃; emulsifying at a homogenizing rotating speed of 1000-3000 rpm for 1-5 minutes, and stirring at a rotating speed of 20-30 rpm for 5 minutes after emulsification to start cooling;

(4) when the temperature is reduced to 40-45 ℃, adding a preservative into the emulsifying pot, and uniformly stirring;

(5) vacuumizing, stirring uniformly, cooling to 30-40 ℃, and discharging; preferably, the temperature is reduced to 35 ℃.

Technical Field

The invention belongs to the technical field of cosmetics, and particularly relates to a low-irritation cleaning composition and a preparation method thereof.

Background

Currently, commercially available facial cleansers usually contain 15% -30% of surfactant as a core cleaning component, and some facial cleansers contain highly irritating surfactant or do not reduce the irritation of the surfactant through an effective compounding method, so that the skin barrier function is damaged after long-term use.

The stratum corneum in the skin serves as a protective function between the human body and the external environment, lipids are important components of the lipid barrier built in the stratum corneum just like bricks, but excessive cleaning of surfactants can cause lipid loss. Once the lipid barrier is damaged, the skin's moisture retention capacity is reduced, causing symptoms such as tightness, dryness, peeling, erythema and the like after washing, and even easily causing the generation of sensitive skin. Surfactants may also denature proteins until the surfactant enters the intercellular space, allowing the intercellular material to be dissolved.

Until now, most of the commercial facial cleansing products are still mainstream with high content of fatty acid soap. Although giving good cleaning effect, abundant foam, and reduced irritation by adding quaternary ammonium salts or water-soluble oils and fats. But still not mild enough due to the high surfactant content.

The existing face cleaning products still have the following common problems: 1. the surfactant content is high, and stimulation is easy to generate on sensitive skin; 2. when the dirt of the skin is cleaned, some skin components which should not be cleaned are cleaned, and even the skin is harmful; 3. the abundant foam, while increasing the contact area of the surfactant with the skin, also easily enters the eye, irritating the eye.

Disclosure of Invention

The object of the present invention is to provide a low irritancy cleansing composition.

The invention also aims to provide the application of the low-irritation cleaning composition in preparing products for cleaning skin and hair.

It is also an object of the present invention to provide a process for the preparation of a low irritancy cleansing composition.

The invention provides a cleaning composition which has low surfactant content and reduces the irritation of a surfactant by compounding fatty alcohol. The fatty alcohol can be inserted between hydrophilic groups of the micelle formed by the surfactant to form a larger micelle structure, so that the irritation of the surfactant is reduced, and the surfactant is suitable for sensitive skin.

in one embodiment, there is provided a cleaning composition comprising the following components in weight percent: 0.5-10% of surfactant and 1-10% of fatty alcohol; preferably, 0.5-3% of a surfactant; preferably, the fatty alcohol is 1-5%.

In one embodiment, there is also provided a cleaning composition, the surfactant being a combination of one or more of sodium laureth-3 sulfate, sodium cocoyl glycinate, lauramidopropyl betaine, sodium methylcocoyltaurate, sodium lauryl sulfate, sodium lauroamphoacetate, disodium lauriminodiacetate, lauryl glucoside, sodium lauroyl glutamate; preferably one or more of sodium laureth-3 sulfate, lauramidopropyl betaine and lauryl glucoside; more preferably lauramidopropyl betaine.

In one embodiment, there is also provided a cleaning composition, the fatty alcohol being a combination of one or more of lauryl alcohol, stearyl alcohol, cetyl alcohol, cetearyl alcohol, behenyl alcohol; preferably one or more of lauryl alcohol, cetostearyl alcohol and behenyl alcohol; more preferably cetearyl alcohol.

in one embodiment, there is also provided a cleaning composition further comprising in weight percent: 1-15% of polyol; preferably 3 to 8%; 0.2 to 1 percent of preservative; preferably 0.3 to 0.6; the balance of deionized water.

in one embodiment, there is also provided a cleaning composition, the polyol being a combination of one or more of glycerin, propylene glycol, 1, 3-propanediol, 1, 3-butanediol, dipropylene glycol, sorbitol, diglycerin; preferably one or more of glycerol, 1, 3-propylene glycol and sorbitol; more preferably glycerol.

in one embodiment, there is also provided a cleaning composition, the preservative being a combination of one or more of p-hydroxyacetophenone, phenoxyethanol, chlorphenesin, methylparaben, sorbitan octanoate, benzoic acid, gluconolactone, sodium benzoate; preferably one or more of phenoxyethanol and chlorphenesin; more preferably phenoxyethanol.

In one embodiment, a cleansing composition is also provided, and may be used in the form of a cleansing product including facial cleanser, facial gel, facial lotion, and facial cream.

in one embodiment, the use of a cleansing composition in the preparation of a skin and hair cleansing product is also provided.

in one embodiment, there is also provided a method of making a cleaning composition comprising the steps of:

(1) Preparing raw materials according to the composition;

(2) adding water, polyalcohol and surfactant into an emulsifying pot, stirring for dissolving, heating to 85-95 deg.C, and keeping the temperature for 10-20 min; preferably, heating to 90 ℃; preferably, the incubation is for 15 minutes;

(3) putting fatty alcohol into an emulsifying pot, and stirring, dissolving and dispersing uniformly at the temperature of 80-90 ℃; emulsifying at a homogenizing rotating speed of 2000-3000 rpm for 1-5 minutes, and stirring at a rotating speed of 20-30 rpm for 5 minutes after emulsification to start cooling;

(4) When the temperature is reduced to 40-45 ℃, adding a preservative into the emulsifying pot, and uniformly stirring;

(5) Vacuumizing, stirring uniformly, cooling to 30-40 ℃, and discharging; preferably, the temperature is reduced to 35 ℃.

The invention has the following beneficial effects:

(1) And (2) mildness: the cleaning composition has lower surfactant content than common cleaning products, and the cleaning process is milder.

(2) no stimulation: in the cleaning composition, the stimulation of the surfactant is further reduced by compounding the surfactant and the fatty alcohol, and the cleaning composition is suitable for sensitive skin.

(3) excellent skin feel after cleansing: the cleaning composition of the invention can not bring away skin moisture additionally after cleaning the skin, and the moisture content of the skin is hardly reduced obviously after 8 hours of using the cleaning composition of the invention, and the skin has no tight feeling and has excellent skin feeling.

(4) the stability is good: the compositions of the present invention exhibit good stability, whether at room temperature, high temperature, low temperature, or in a cyclic temperature system.

Detailed Description

The technical solutions of the present invention are further illustrated by the following specific examples, which do not represent limitations to the scope of the present invention. Insubstantial modifications and adaptations of the present invention by others of the concepts fall within the scope of the invention.