JP2018043981A - Composition for cleansing sebum - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composition for cleansing sebum capable of suppressing a body odor caused by the decomposition of sebum by efficiently eliminating the sebum secreted from the skin of a person when washing the hair or body.SOLUTION: There is provided a composition for cleansing sebum capable of efficiently cleansing sebum at every time of washing the hair and body by adding specific nonionic surfactants, which are usually not blended in a cleanser and have good detergency for sebum, to a conventional cleanser formulation.SELECTED DRAWING: None

Description

  The present invention relates to a sebum cleaning composition capable of efficiently cleaning sebum.

  In human skin, fat components are secreted from the sebaceous glands inside the skin, and are pushed out through the pores to the surface of the skin as sebum. After sebum is secreted to the skin surface, it mixes with sweat to create a sebum film that covers the skin surface, preventing moisture evaporation from the skin, providing flexibility to the skin and hair, and protecting the skin and hair from external stimuli In addition, it has been confirmed that triglyceride, a component of sebum, is decomposed by the resident bacteria of the skin to produce fatty acids, so that it has excellent effects such as keeping the skin weakly acidic and suppressing the growth of various bacteria. ing. On the other hand, excessively secreted sebum promotes the proliferation of skin resident bacteria, which may cause seborrheic eczema, acne, pimples, etc., and the fatty acids decomposed by the skin resident bacteria may further oxidize. It is also known to cause body odor.

In recent years, in the cosmetics and toiletries market, consumers are greatly interested in care related to odors such as sweat odor, side odor, foot odor, aging odor and middle fat odor. Detergents such as shampoos and body soaps are commercially available as products that care for such body odors. It is what suppresses decomposition | disassembly of sebum with a component (patent document 1).
As mentioned above, the cause of the odor is sebum secreted from humans. However, as described above, there are many product groups that suppress the degradation of sebum on the skin or scalp or deodorize the conventional detergents, and the surfactants used have not been sufficiently studied. Currently. Accordingly, development of a surfactant that efficiently cleans sebum itself and a composition for cleaning sebum that contains the surfactant is demanded.

JP 2014-101356 A

  An object of the present invention is to provide a sebum cleaning composition capable of efficiently cleaning sebum secreted from a person causing odor.

  In view of these circumstances, the present inventors have conducted extensive research to obtain a sebum cleaning composition that efficiently cleans sebum secreted from humans, and as a result, (a) represented by the general formula (1) By combining a nonionic surfactant, (b) a nonionic surfactant represented by the general formula (2), (c) an anionic surfactant, and (d) water, In comparison, the composition for cleaning sebum has a very high cleaning effect on sebum.

The present invention is described in detail below.
The component (a) used in the present invention is a nonionic surfactant represented by the general formula (1), having 8 to 16 carbon atoms and 2 to 20 polyoxyethylene addition moles. Polyoxyethylene alkyl ether. The component (a) of the present invention can be easily synthesized by arbitrarily changing the number of carbon atoms and the number of moles of polyoxyethylene added, and a commercially available product may be used, for example, Nikko Chemical BL manufactured by Nikko Chemicals. -2 (Laureth-2), NIKKOL BL-5NR (Laureth-5), NIKKOL BL-9EX (Laureth-9), NIKKOL BC-2 (Seteth-2), NIKKOL BC-10 (Seteth-10), NIKKOL BC -15 (ceteth-15). These may be used alone or in combination of two or more, regardless of the number of carbon atoms or the number of moles of polyoxyethylene added.

（式中、Ｒは炭素数８〜１６のアルキル基、ｎは２〜２０の整数である。）

(In the formula, R is an alkyl group having 8 to 16 carbon atoms, and n is an integer of 2 to 20).

  The component (b) used in the present invention is a nonionic surfactant represented by the general formula (2), wherein R is —H and / or —OCOR ′, and R ′ is the number of carbon atoms. 8 to 18 alkyl groups. l + m + n is an integer of 5-20. And it is polyoxyethylene glycerin fatty acid ester whose total of the addition mole number of polyoxyethylene is an integer of 5-20. Nonionic surfactants of component (b) are commercially available with various fatty acid chain lengths and polyoxyethylene groups, such as NIKKOL TMGS-5V (PEG-5 glyceryl stearate) manufactured by Nikko Chemicals, NIKKOL TMGO-15 (PEG-15 glyceryl oleate), NIKKOL TMGCO-7 (coconut oil fatty acid PEG-7 glyceryl) and the like. These 1 type (s) or 2 or more types can be used in combination.

（式中、ＲはＨ及び／又は−ＯＣＯＲ'を示し、Ｒ'は炭素数８〜１８のアルキル基である。ｌ＋ｍ＋ｎが５〜２０の整数である。）

(In the formula, R represents H and / or —OCOR ′, and R ′ is an alkyl group having 8 to 18 carbon atoms. L + m + n is an integer of 5 to 20)

  Component (c) used in the present invention is an anionic surfactant and is not particularly limited as long as it is a component that can be used as a cleaning agent. Fatty acid soaps, alkyl ether carboxylates, polyoxyethylene alkyl There are sulfates, sulfates, acylated amino acid salts, phosphate esters and the like. These can be used alone or in combination of two or more.

  The blending ratio of the component (a) and the component (b) used in the present invention is preferably 2: 8 to 8: 2, more preferably 4: 6 to 6: 4. In the composition for cleaning sebum of the present invention, the total amount of component (a) and component (b) is preferably 1 to 15%, more preferably 1 to 7%.

  Furthermore, other components for preparing the sebum cleaning composition of the present invention are not particularly limited, and various components that are usually used in cosmetics or cleaning agents, for example, within a range that does not impair the effects of the present invention, such as , Polar lipids, active ingredients, moisturizing ingredients, antibacterial ingredients, viscosity modifiers, pigments, fragrances and the like can be blended. Specific examples of polar lipids include ceramides, phospholipids, cholesterol and derivatives thereof, and glycolipids. As active ingredients, ascorbic acid, magnesium ascorbate phosphate ester, ascorbyl palmitate, ascorbyl stearate, ascorbyl tetraisopalmitate, ascorbyl glucoside, arbutin, ellagic acid, Ncinol component such as lucinol, NMF components such as amino acids, Examples include water-soluble collagen, elastin, glycyrrhizic acid, glycyrrhetinic acid, anti-roughing agents such as ceramide, anti-aging agents such as retinol and vitamin A acid, various vitamins, and derivatives thereof. Examples of the moisturizing component include chondroitin sulfate, hyaluronic acid, sodium pyrrolidone carboxylate and the like.

  The sebum cleaning composition in the present invention is not particularly limited, and includes product groups such as hair shampoos, body soaps, hand soaps, face soaps, cleansing agents, regardless of whether they are aqueous, emulsified or solid. It is done.

  The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto. Moreover, the mass% shown below is mass% with respect to the whole composition.

<Example 1>
(1) Evaluation of sebum detergency 5% aqueous solutions of various surfactants shown in Table 1 were prepared, and their sebum detergency was evaluated. The sebum detergency was evaluated using artificial sebum shown in Table 2.
First, 0.10 g of artificial sebum was uniformly applied on a slide glass in a range of 1.5 cm × 1.5 cm and dried for 2 hours. Thereafter, 0.05 g of a 5% aqueous solution of various surfactants was added dropwise and allowed to familiarize with a finger for 10 seconds. Thereafter, the cotton was tapped 10 times, and the degree of adsorption of artificial sebum on the cotton was visually observed. The results are shown in the rightmost column of Table 1. The case where the artificial sebum was sufficiently adsorbed and the detergency was judged to be very high was marked as ◎, the case judged as high was marked as ○, and the case judged as low adsorption and low detergency was marked as x.

(2) Results Compound No. of component (c) in Table 1 11) Sodium lauroylmethylalanine to compound no. 13) As shown in sodium laureth-5 carboxylate, it is clear that sebum cannot be sufficiently washed with only an anionic surfactant usually used as a detergent. On the other hand, compound no. 1) to Compound No. 5) and component No. 5 of component (b). 7) to Compound No. Nonionic surfactants as shown in 9) are suitable as sebum cleaners, and by adding these to conventional cleaners, more sebum detergency can be exhibited. Some nonionic surfactants have poor sebum detergency due to the number of moles of polyoxyethylene added, the carbon chain length, the structure of the hydrophobic group, and the like. 6) and component No. 5 of component (e). It became clear as shown in 10).

<Example 2>
The compositions shown in Table 3 were prepared, and the sebum cleaning properties of the sebum cleaning composition were evaluated by the method of Example 1.
As a result, the compound alone of component (a) or component (b) has a certain amount of sebum detergency, but when mixed with the composition shown in Invention 1 to Invention 4, the sebum detergency is higher than that of the compound alone. It became clear that it increased to the advantage.

  Hereinafter, application examples of the composition for cleaning sebum are shown. A compounding quantity is the mass% (a total of 100 mass%). The evaluations of Examples 3 to 13 were all performed by the method described in Example 1.

<Example 3>
Body soap mass%
(A) Potassium myristate 16.00
Lauroylmethylalanine sodium 6.00
Cocamide DEA 3.00
Glycerin 12.00
1,3-butylene glycol 5.00
Chelating agent Appropriate amount Purified water Residual (B) Laureth-3 0.80
Setes-20 0.50
PEG-15 glyceryl oleate 2.20
Preservative appropriate amount Purified water 15.00
Preparation method: A phase and B phase are heated and dissolved uniformly. Gradually add Phase B while stirring Phase A. Cool to room temperature while continuing to stir and complete the preparation.
Result: The sebum detergency evaluation result was ◎.

<Example 4>
Shampoo Mass%
(A) Sodium cocoyl methyl taurine 6.00
Lauroylmethylalanine sodium salt 4.50
Cocamide DEA 3.00
Cocamidopropyl betaine 4.00
(Caprylyl / Capryl) glucoside 5.00
Chelating agent Suitable amount Purified water Residual (B) Laureth-9 0.40
Setes-10 0.80
Coconut oil fatty acid PEG-7 glyceryl 1.40
Polyquaternium-10 0.60
Citric acid 0.65
Preservative appropriate amount Purified water 30.00
Preparation method: A phase and B phase are heated and dissolved uniformly. Gradually add Phase B while stirring Phase A. Cool to room temperature while continuing to stir and complete the preparation.
Result: The sebum cleaning evaluation result was ◎.

<Example 5>
Dry shampoo
(A) Sodium cocoyl methyl taurine 0.30
Laureth-5 0.50
Palm oil fatty acid PEG-7 glyceryl 0.80
Ethanol 30.00
Chelating agent Appropriate amount Preservative Appropriate amount Purified water Residual preparation method: Phase A is heated and dissolved uniformly. The phase A is cooled to room temperature with stirring, and the preparation is completed.
Result: The sebum cleaning evaluation result was ◎.

<Example 6>
Cool shampoo
(A) Sodium laureth-2 sulfate 7.00
Cocamidopropyl betaine 3.00
(Caprylyl / Capryl) glucoside 5.00
l-Menthol 0.80
Chelating agent Suitable amount Purified water Residual (B) Laureth-3 0.30
Laureth-5 1.00
Palm oil fatty acid PEG-7 glyceryl 1.50
Polyquaternium-10 0.30
Citric acid 0.40
Preservative appropriate amount Purified water 30.00
Preparation method: A phase and B phase are heated and dissolved uniformly. Gradually add Phase B while stirring Phase A. Cool to room temperature while continuing to stir and complete the preparation.
Result: The sebum cleaning evaluation result was ◎.

<Example 7>
Scalp oil shampoo
(A) Sodium cocoyl methyl taurine 6.00
Lauroylmethylalanine 4.50
(Caprylyl / Capryl) glucoside 5.00
Cocamidopropyl betaine 4.50
Guar hydroxypropyltrimonium chloride 1.00
Lauric acid PG 2.00
Squalane 0.50
Methyl heptyl laurate 0.50
Chelating agent Appropriate amount Purified water Residual (B) ceteth-20 0.50
PEG-15 glyceryl oleate 1.50
Citric acid 0.40
Preservative appropriate amount Purified water 30.00
Preparation method: A phase and B phase are heated and dissolved uniformly. Gradually add Phase B while stirring Phase A. Cool to room temperature while continuing to stir and complete the preparation.
Result: The sebum cleaning evaluation result was ◎.

<Example 8>
Solid soap mass%
(A) Palm oil fatty acid 20.00
Palm oil fatty acid 20.00
Glycerin 6.00
l-Menthol 0.80
(B) Sodium hydroxide (85% aqueous solution) 15.75
Purified water Residual (C) Laureth-15 0.70
Setes-15 0.50
Palm oil fatty acid PEG-7 glyceryl 2.00
Citric acid 0.40
Preservative appropriate amount Purified water 30.00
Preparation method: A phase and B phase are heated and dissolved uniformly. Gradually add Phase B while stirring Phase A. While continuing stirring, phase C is added, and after cooling to room temperature, the preparation is completed.
Result: The sebum cleaning evaluation result was ◎.

<Example 9>
Facial cleansing foam
(A) Lauric acid 10.00
Palmitic acid 12.00
Stearic acid 10.00
Lauroylmethyl taurine sodium 5.00
Glyceryl stearate 2.00
Glycerin 15.00
Sorbitol 3.50
Olive fruit oil 1.00
Laureth-7 1.00
Setes-10 0.80
PEG-5 glyceryl oleate 1.00
(B) Potassium hydroxide 7.00
Preservative Appropriate amount Purified water Residual preparation method: Phase A and phase B are heated and dissolved uniformly. Gradually add Phase B while stirring Phase A. The preparation is completed after cooling to room temperature with continued stirring.
Result: The sebum cleaning evaluation result was ◎.

<Example 10>
Weakly acidic face-wash foam (pump type)
(A) Sodium cocoylmethyl taurine 1.20
Lauroylmethylalanine sodium 2.40
Cocamidopropyl betaine 2.40
Cocamide DEA 3.00
PEG-5 glyceryl oleate 0.80
Setes-10 0.50
Ethanol 3.00
Glycerin 10.00
1,3-butylene glycol 15.00
Citric acid 0.15
Chelating agent Appropriate amount Preservative Appropriate amount Purified water Residual preparation method: Phase A is heated and dissolved uniformly. The preparation is completed after cooling to room temperature with continued stirring.
Result: The sebum cleaning evaluation result was ◎.

<Example 11>
Cleansing lotion mass%
(A) Palm oil fatty acid PEG-7 glyceryl 4.00
Laureth-10 4.00
PEG-50 hydrogenated castor oil 2.00
Lauroylmethyl taurine sodium 0.20
Preservative Appropriate amount (B) Citric acid Appropriate amount Sodium citrate Appropriate amount Chelating agent Appropriate amount Purified water Residual preparation method: Heat phase A and phase B and dissolve uniformly. Gradually add Phase B while stirring Phase A. The preparation is completed after cooling to room temperature with continued stirring.
Result: The sebum cleaning evaluation result was ◎.

<Example 12>
Cleansing milk mass%
(A) Cyclopentasiloxane 5.00
Diphenylsiloxyphenyl trimethicone 5.00
Methylheptyl laurate 5.00
Squalane 5.00
Coconut oil fatty acid PEG-7 glyceryl 10.00
Laureth-5 2.00
Ceteth-15 3.00
Stearoyl methyl taurine sodium 0.20
Cetearyl alcohol 0.50
Sorbitan isostearate 1.00
Tetraoleic acid Solves-30 1.00
(B) Glycerin 10.00
1,3-butylene glycol 3.00
Carboxyvinyl polymer (2% aqueous solution) 10.00
(Acrylates / alkyl acrylate (C10-30)
Cross polymer) (2% aqueous solution) 5.00
Chelating agent Suitable amount Preservative Suitable amount Purified water Residual (C) Potassium hydroxide 0.07
Purified water 5.00
Preparation method: A phase and B phase are heated and dissolved uniformly. Gradually add Phase A while stirring Phase B. Add Phase C, cool to room temperature with continued stirring, and finish preparation.
Result: The sebum cleaning evaluation result was ◎.

<Example 13>
Hand soap mass%
(A) Laureth-2 sodium sulfate 5.00
Cocamidopropyl betaine 3.00
Cocamide DEA 3.00
Palm oil fatty acid potassium 18.00
Isopropylmethylphenol 0.50
PEG-15 glyceryl oleate 0.75
Laureth-3 0.45
Glycerin 7.00
Preservative Appropriate amount Chelating agent Appropriate amount Purified water Residual preparation method: Phase A is heated and dissolved uniformly. The preparation is completed after cooling to room temperature with continued stirring.
Result: The sebum cleaning evaluation result was ◎.

  The composition for cleaning sebum of the present invention can provide a composition for cleaning sebum for scalp and body that can efficiently clean sebum secreted from humans.

Claims (1)

A sebum cleaning composition comprising the following components (a) to (d) as essential components.
(A) Nonionic surfactant represented by the general formula (1)

(In the formula, R is an alkyl group having 8 to 16 carbon atoms, and n is an integer of 2 to 20).
(B) Nonionic surfactant represented by the general formula (2)

(In the formula, R represents H and / or —OCOR ′, and R ′ is an alkyl group having 8 to 18 carbon atoms. L + m + n is an integer of 5 to 20)
(C) Anionic surfactant (d) Water