JP7701031B2 - Cleaning composition - Google Patents

Description

The present invention relates to a cleansing composition. More specifically, the present invention relates to a cleansing composition to be applied to the skin, particularly the face.

Depending on the combination of base components, cleansing compositions are broadly classified into oil-based types, in which the external phase is oily, and aqueous types, in which the external phase is aqueous. For example, oil-based types include cleansing oils and water-in-oil emulsion types, while aqueous types mainly include solubilized types and oil-in-water emulsion types.

Furthermore, among these cleaning compositions, liquid or paste cleaning compositions often have high cleaning power, foaming during use, and good foam quality.

In the past, detergent compositions containing an anionic surfactant, an amphoteric surfactant, a hydrophilic nonionic surfactant, and an oily component have been proposed with the aim of providing detergent compositions that can provide high cleaning properties and good foaming (Patent Document 1).

Furthermore, with the aim of providing an oil-based detergent that can exert an excellent cleaning effect, an oil-based detergent containing a nonionic surfactant with an HLB of 9 to 16, liquid oil, and propylene glycol laurate has been proposed (Patent Document 2).

Furthermore, due to the recent diversification of consumer needs, there is an increasing demand in the market for cleansing compositions that not only produce abundant lather and have good foam quality when used, but also leave skin in good condition after cleansing.

International Publication No. 2018/074149 International Publication No. 2019/054362

However, the composition of Patent Document 1 above may result in insufficient moisturizing feeling on the skin after drying due to excessive degreasing. It is difficult for the composition of Patent Document 2 above to achieve both a non-sticky feeling on the skin after cleansing and a moisturizing feeling after cleansing.

For this reason, there was a demand for a cleansing composition that not only foams well, but also leaves the skin feeling moisturized immediately after rinsing, and the moisturized feeling lasts even after rinsing, without being sticky.

As a result of extensive research into solving the above problems, the inventors discovered that the above problems could be solved by creating a cleaning composition containing (A) an anionic surfactant, (B) an amphoteric surfactant, and (C) propylene glycol laurate, and thus completed the present invention.

The present invention provides a cleaning composition that foams well, leaves the skin feeling moisturized immediately after rinsing, maintains the moisturized feeling after rinsing, and is not sticky.

The present invention will be described in detail below. Note that all units indicating content are mass% unless otherwise specified.

The present invention contains (A) an anionic surfactant from the viewpoints of good foaming and non-stickiness.

The component (A) used in the present invention is not particularly limited, but may include fatty acid salts, N-acyl methyl taurine salts, N-acyl amino acid salts, N-acyltaurate salts, alkyl benzene sulfonates, alkane sulfonates, alkenyl sulfonates, alkyl sulfonates, α-olefin sulfonates, acyl isethionates, polyoxyethylene alkyl sulfosuccinates, alkyl sulfosuccinates, alkyl sulfate ester salts, alkyl ether sulfate ester salts, sulfo fatty acid methyl ester salts, fatty acid alkanolamide sulfate ester salts, monoacyl glycerin sulfate ester salts, alkyl phosphate ester salts, polyoxyethylene alkyl ether phosphate salts, alkyl aryl ether phosphate salts, fatty acid amide ether phosphate salts, ether carboxylate salts, etc. One or more of these may be contained.

Among the (A) components used in the present invention, from the viewpoint of good foaming and non-stickiness, it is preferable to use two or more types of (A-1) N-acylmethyltaurine salts or (A-2) N-acylamino acid salts, and it is more preferable that the (A) component is one or more types selected from (A-1) N-acylmethyltaurine salts and one or more types selected from (A-2) N-acylamino acid salts.

The component (A-1) used in the present invention includes, for example, coconut oil fatty acid taurine salt, N-coconut oil fatty acid-N-methyl taurine salt, N-lauroyl-N-methyl taurine salt, N-palm oil fatty acid-N-ethyl taurine salt, etc. Examples of these salts include alkali metal salts such as sodium and potassium, alkanolamine salts such as monoethanolamine salt, diethanolamine salt, triethanolamine salt, alkylamine salt, ammonium salt, sodium taurate, potassium taurate, etc.

The component (A-1) used in the present invention is preferably an N-coconut fatty acid-N-methyl taurate salt from the viewpoint of good foaming and non-stickiness. Among the N-coconut fatty acid-N-methyl taurate salts, sodium N-coconut fatty acid-N-methyl taurate and sodium N-coconut fatty acid-N-methyl taurate are preferred, with sodium N-coconut fatty acid-N-methyl taurate being more preferred.

The amino acid residues of the component (A-2) used in the present invention include, for example, acidic amino acids such as glutamic acid and aspartic acid, neutral amino acids such as glycine, alanine, threonine, methylalanine, and sarcosine (methylglycine), and basic amino acids such as lysine and arginine. Examples of salts of these include alkali metal salts such as sodium and potassium, alkanolamine salts such as monoethanolamine salts, diethanolamine salts, and triethanolamine salts, alkylamine salts, and ammonium salts.

From the viewpoint of good foaming and non-stickiness, the (A-2) component used in the present invention is preferably N-acylalanine salt, N-acylglycine salt, N-acylglutamate salt, or N-acylapartate salt, and among the (A-2) components, N-potassium coconut oil fatty acid acylglycine, sodium lauroylmethyl-β-alanine, sodium N-sodium coconut oil fatty acid acyl-L-glutamate, or sodium N-lauroyl-L-aspartate is more preferred, with potassium N-potassium coconut oil fatty acid acylglycine being more preferred.

The content of the component (A) used in the present invention is 0.45 to 12%, more preferably 1.5 to 9%, and even more preferably 2.5 to 6%. If the content of the component (A) is less than 0.45%, there is a risk that poor foaming and stickiness may occur. If the content of the component (A) is more than 12%, there is a risk that the moist feeling after rinsing will not last.

The present invention contains an amphoteric surfactant (B) from the viewpoints of good foaming and moist feeling immediately after rinsing.

The component (B) used in the present invention is not particularly limited, but examples thereof include imidazolinium betaine type amphoteric surfactants, amidopropyl betaine type amphoteric surfactants, carboxybetaine type amphoteric surfactants, sulfobetaine type amphoteric surfactants, hydroxysulfobetaine type amphoteric surfactants, amidosulfobetaine type amphoteric surfactants, phosphobetaine type amphoteric surfactants, aminocarboxylate type amphoteric surfactants, amidoamine type amphoteric surfactants, etc. One or more of these may be contained.

Among the (B) components used in the present invention, from the viewpoint of good foaming and moist feeling immediately after rinsing, it is preferable to use two or more types of (B-1) imidazolinium betaine type amphoteric surfactants or (B-2) amidopropyl betaine type amphoteric surfactants, and it is more preferable that the (B) component is one or more types selected from (B-1) imidazolinium betaine type amphoteric surfactants and (B-2) amidopropyl betaine type amphoteric surfactants.

Examples of the (B-1) component used in the present invention include sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, sodium undecylhydroxyethylimidazolinium betaine, etc. Among the (B-1) components, sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine is preferred from the standpoint of good foaming and moist feeling immediately after rinsing.

Examples of the (B-2) component used in the present invention include lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, isostearic acid amidopropyl betaine, palm kernel fatty acid amidopropyl betaine, and ricinoleic acid amidopropyl betaine. Among the (B-2) components, from the viewpoints of good foaming and moist feeling immediately after rinsing, lauric acid amidopropyl betaine, palm kernel oil fatty acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine are preferred, and lauric acid amidopropyl betaine is more preferred.

The content of the (B) component used in the present invention is 0.5 to 12%, more preferably 2.5 to 10%, and even more preferably 3.5 to 8%. If the content of the (B) component is less than 0.5%, the foaming may be poor and the moist feeling immediately after rinsing may be lost. If the content of the (B) component is more than 12%, stickiness may occur.

The mass ratio (A)/((A)+(B)) of the (A) component to the (A) component and the (B) component used in the present invention is preferably 0.08 to 0.9, more preferably 0.36 to 0.56. If the mass ratio (A)/((A)+(B)) is less than 0.08, poor lathering may result, and stickiness may occur. If the mass ratio (A)/((A)+(B)) is more than 0.9, poor lathering may result, and the moist feeling immediately after rinsing may disappear.

The present invention contains (C) propylene glycol laurate from the viewpoint of maintaining a moist feeling after rinsing.

The content of the component (C) used in the present invention is 0.2 to 1.5%, more preferably 0.4 to 1%, and even more preferably 0.5 to 0.8%. If the content of the component (C) is less than 0.2%, the moist feeling after rinsing may not last. If the content of the component (C) is more than 1.5%, stickiness may occur.

The present invention can further contain (D) a sugar alcohol in order to improve the foaming ability, the sustained moist feeling after rinsing, and the lack of stickiness.

The (D) component used in the present invention is not particularly limited, but examples thereof include sorbitol, erythritol, maltose, maltitol, xylitol, xylose, trehalose, inositol, glucose, mannitol, pentaerythritol, fructose, sucrose and its esters, dextrin and its derivatives, honey, brown sugar extract, etc. Among the (D) components, sorbitol is preferred from the viewpoints of improving foaming, sustained moist feeling after rinsing, and non-stickiness.

The content of the (D) component used in the present invention is 0.5 to 12%, more preferably 2.5 to 10%, and even more preferably 3 to 8%. If the content of the (D) component is less than 0.5%, there is a risk that the foaming ability, the continued moist feeling after rinsing, and the lack of stickiness will not improve. If the content of the (D) component is more than 12%, there is a risk that stickiness will occur.

The present invention can further contain (E) an amino acid derivative from the viewpoint of improving the moist feeling immediately after rinsing, sustaining the moist feeling after rinsing, and improving non-stickiness.

The component (E) used in the present invention is not particularly limited, but examples thereof include trimethylglycine, γ-butyrobetaine, homarine, trigonelline, β-alanine betaine, carnitine, atrinine, anthopleurin, valine betaine, lysine betaine, alanine betaine, and glutamic acid betaine. Among the components (E), trimethylglycine is preferred from the viewpoints of improving the moist feeling immediately after rinsing, the sustained moist feeling after rinsing, and the lack of stickiness.

The content of the component (E) used in the present invention is 0.5 to 10%, more preferably 1 to 8%, and even more preferably 2 to 6%. If the content of the component (E) is less than 0.5%, there is a risk that the moist feeling immediately after rinsing, the sustained moist feeling after rinsing, and the lack of stickiness will not be improved. If the content of the component (E) is more than 10%, there is a risk that the sustained moist feeling after rinsing, and the lack of stickiness will not be improved.

The present invention can further contain (F) a hydrolyzed protein or a derivative thereof from the viewpoint of improving the foaming ability, moist feeling immediately after rinsing, sustained moist feeling after rinsing, and non-stickiness.

The (F) component used in the present invention is not particularly limited, but includes proteins such as collagen, keratin, elastin, fibroin, egg, silk, conchiolin, casein, gelatin, and hydrolyzed proteins obtained by hydrolyzing proteins obtained from plants such as rice, wheat, barley, oats, soybeans, peas, almonds, Brazil nuts, potatoes, and corn with acids, alkalis, enzymes, and the like, and their derivatives. Among the (F) components, hydrolyzed silk, hydrolyzed pea protein, and sodium lauroyl hydrolyzed silk are preferred from the viewpoints of improving foaming, moist feeling immediately after rinsing, sustained moist feeling after rinsing, and non-stickiness.

The content of the (F) component used in the present invention is 0.025 to 0.8%, more preferably 0.05 to 0.67%, and even more preferably 0.2 to 0.5%. If the content of the (F) component is less than 0.025%, there is a risk that the foaming ability, moist feeling immediately after rinsing, sustained moist feeling after rinsing, and non-stickiness will not be improved. If the content of the (F) component is more than 0.8%, there is a risk that stickiness will occur.

In addition to the above-mentioned components, the cleaning composition of the present invention may contain various components used in ordinary cosmetics, quasi-drugs, pharmaceuticals, etc., such as chelating agents, surfactants other than components (A) and (B), moisturizers other than component (D), amino acids other than component (E), hydrolyzed proteins or derivatives thereof other than component (F), oily components, thickeners, medicinal ingredients, protein derivatives, stabilizers, antioxidants, plant extracts, herbal extracts, vitamins, preservatives, dyes, pigments, powders, pH adjusters, UV absorbers, fragrances, etc., and these may be contained in one or more types. However, the present invention is not limited to these examples.

The pH of the cleaning composition of the present invention at 20°C is not particularly limited, but from the viewpoint of usability, it is preferably 5.5 to 7.5.

The pH of the cleaning composition of the present invention at 20°C was measured by preparing the composition in the usual manner, filling a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) with 120 mL of the resulting cleaning composition, leaving it to stand at 20°C for 24 hours, and then measuring it with a glass electrode type hydrogen ion concentration indicator (F-71: manufactured by Horiba, Ltd.).

The viscosity of the cleaning composition of the present invention at 20°C is not particularly limited, but from the viewpoint of usability, it is preferably 1,000 to 20,000 mPa·s, more preferably 1,000 to 10,000 mPa·s.

The viscosity of the cleaning composition according to the present invention at 20°C is measured by preparing the composition in a conventional manner, filling a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) with 120 g of the resulting cleaning composition, and leaving it to stand at 20°C for 24 hours. If the viscosity is between 1,000 and less than 10,000 mPa·s, the viscosity is measured using a B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) after rotating the composition at 20°C and 12 rpm for 1 minute using an M3 rotor. If the viscosity is 10,000 mPa·s or more, the viscosity is measured after rotating the composition at 20°C and 6 rpm for 1 minute using an M3 rotor.

The area where the cleansing composition of the present invention is used is not particularly limited, but it can be used preferably on the skin, and more preferably on the face.

The present invention will be described in more detail below with reference to examples. Note that the present invention is not limited to these examples.

In the evaluation tests shown in this specification, the components and their contents in the cleaning composition were varied. The units showing the contents of each component are all mass %, and the compositions were prepared in the usual manner.

In the evaluation test shown in this invention, the following were evaluated: "good foaming," "moisturizing feeling immediately after rinsing," "sustained moisturizing feeling after rinsing," and "non-stickiness."

[Good foaming]
Fifteen expert panelists placed 3 g of the cleanser compositions obtained in the Examples and Comparative Examples on a foaming net (Whip Facial Wash S; manufactured by Daiso Industries Co., Ltd.) that had been moistened with 40°C warm water and lightly dried, and rubbed the foaming net 10 times to create a lather, and then evaluated the lathering by sensory evaluation.
(Evaluation Criteria)
6: 13 or more out of 15 people felt that it foamed well.
5: 11 to 12 out of 15 people felt that it foamed well.
4: 9 to 10 out of 15 people felt that it foamed well.
3: 7 to 8 out of 15 people felt that it foamed well.
2: 5 to 6 out of 15 people felt that it foamed well.
1: Less than 4 out of 15 people felt that it foamed well.

[Moisturizing feeling immediately after rinsing]
Fifteen expert panelists placed 3 g of the cleanser compositions obtained in the Examples and Comparative Examples on a foaming net (Whip Face Wash S; manufactured by Daiso Industries Co., Ltd.) that had been moistened with 40°C warm water and lightly dried, and the expert panelists washed their faces with the foam generated by rubbing the foaming net 10 times, towel-dried the faces, and sensorily evaluated the moist feeling immediately after rinsing. The evaluation test was carried out under conditions of room temperature of 20°C and humidity of 60%.
(Evaluation Criteria)
6: 13 or more out of 15 people felt moisturized immediately after rinsing.
5: 11 to 12 out of 15 people felt moisturized immediately after rinsing.
4: 9 to 10 out of 15 people felt moisturized immediately after rinsing.
3: 7 to 8 out of 15 people felt moisturized immediately after rinsing.
2: 5 to 6 out of 15 people felt moisturized immediately after rinsing.
1: 4 or less out of 15 people felt moisturized immediately after rinsing.

[Maintains moisturized feeling after rinsing]
Fifteen expert panelists placed 3 g of the cleanser compositions obtained in the Examples and Comparative Examples on a foaming net (Whip Face Wash S; manufactured by Daiso Industries Co., Ltd.) that had been moistened with 40°C warm water and lightly dried, and the expert panelists washed their faces with the foam generated by rubbing the foaming net 10 times, towel-dried the faces, and then sensorily evaluated the difference in moist feeling after rinsing and the moist feeling 5 minutes after rinsing. The evaluation test was carried out under conditions of room temperature of 20°C and humidity of 60%.
(Evaluation Criteria)
6: 13 or more out of 15 people experienced lasting moist feeling.
5: 11 to 12 out of 15 people experienced lasting moist feeling.
4: 9 to 10 out of 15 people felt a lasting moist feeling.
3: 7 to 8 out of 15 people experienced lasting moisturizing sensation.
2: 5 to 6 out of 15 people experienced lasting moisturizing sensation.
1: Less than 4 out of 15 people felt a lasting moist feeling.

[Non-sticky]
Fifteen expert panelists placed 3 g of the cleanser compositions obtained in the Examples and Comparative Examples on a foaming net (Whip Face Wash S; manufactured by Daiso Industries Co., Ltd.) that had been moistened with 40°C warm water and lightly dried, and the expert panelists washed their faces with the foam generated by rubbing the foaming net 10 times, towel-dried the faces, and then evaluated the lack of stickiness by a sensory test. The evaluation test was carried out under conditions of room temperature of 20°C and humidity of 60%.
(Evaluation Criteria)
6: 13 or more out of 15 people felt that it was not sticky.
5: 11 to 12 out of 15 people felt that it was not sticky.
4: 9 to 10 out of 15 people felt that it was not sticky.
3: 7 to 8 out of 15 people felt that it was not sticky.
2: 5 to 6 out of 15 people felt that it was not sticky.
1: Less than 4 out of 15 people felt that it was not sticky.

From Examples 1 to 55 shown in Tables 1 to 7, it was confirmed that good results were obtained in terms of "good foaming," "moisturizing feeling immediately after rinsing," "sustained moisturizing feeling after rinsing," and "non-stickiness."

When various evaluation tests were conducted using the cleaning compositions obtained in Examples 56 to 58, the results were favorable in all areas: "good foaming," "moisturizing feeling immediately after rinsing," "sustained moisturizing feeling after rinsing," and "non-stickiness."

<Example 56>
Ingredient name Content (%)
(A) (A-1) Sodium N-coconut oil fatty acid-N-methyl taurate 3.00
(A) (A-2) Potassium N-coconut oil fatty acid acylglycine 1.50
(B) (B-1) N-lauroyl-N'-carboxymethyl-N'-
Sodium hydroxyethylethylenediamine 3.00
(B) (B-2) Lauryl amidopropyl betaine 2.00
(C) Propylene glycol laurate 0.60
(D) Sorbitol 5.60
(E) Trimethylglycine 4.00
(F) Hydrolyzed silk 0.06
(F) Sodium lauroyl hydrolyzed silk 0.10
(F) Hydrolyzed pea protein 0.10
Polyethylene glycol distearate (1) 0.75
Palm kernel oil fatty acid diethanolamide (1) 0.60
Polyoxyethylene coconut oil fatty acid glyceryl 1.50
BisPEG-18 methyl ether dimethyl silane 0.18
Olive oil PEG-7 carboxylate Na 0.10
Disodium edetate 0.30
Methyl parahydroxybenzoate 0.30
Bergamot fruit oil 0.01
Rosemary leaf oil 0.01
Rosemary leaf extract 0.01
Bilberry Leaf Extract 0.01
Peppermint Leaf Extract 0.01
Chamomile flower extract 0.01
Saxifrage extract 0.01
Hawthorn fruit extract 0.01
Sodium dihydrogen phosphate 0.95
Sodium monohydrogen phosphate 0.05
Fragrance 0.40
Purified water 74.83
Total 100.00
pH (20℃): 6.88
Viscosity (20°C): 6,270mPa・s

<Example 57>
Ingredient name Content (%)
(A) (A-1) Sodium coconut oil fatty acid methyl taurate 1.90
(A) (A-2) Potassium N-coconut oil fatty acid acylglycine 0.80
(B) (B-1) N-lauroyl-N'-carboxymethyl-N'-
Sodium hydroxyethylethylenediamine 3.00
(B) (B-2) Lauryl amidopropyl betaine 2.00
(C) Propylene glycol laurate 0.60
(D) Sorbitol 5.60
(E) Trimethylglycine 4.00
(F) Hydrolyzed silk 0.05
(F) Sodium lauroyl hydrolyzed silk 0.10
(F) Hydrolyzed pea protein 0.08
Polyethylene glycol distearate (1) 0.80
Palm kernel oil fatty acid diethanolamide (1) 0.60
Polyoxyethylene coconut oil fatty acid glyceryl 1.50
BisPEG-18 methyl ether dimethyl silane 0.18
Olive oil PEG-7 carboxylate Na 0.06
Disodium edetate 0.30
Methyl parahydroxybenzoate 0.30
Bergamot fruit oil 0.01
Rosemary leaf oil 0.01
Rosemary leaf extract 0.01
Bilberry Leaf Extract 0.01
Peppermint Leaf Extract 0.01
Chamomile flower extract 0.01
Saxifrage extract 0.01
Hawthorn fruit extract 0.01
Sodium dihydrogen phosphate 0.95
Sodium monohydrogen phosphate 0.05
Fragrance 0.60
Purified water 76.45
Total 100.00
pH (20℃): 6.73
Viscosity (20°C): 5,540mPa・s

<Example 58>
Ingredient name Content (%)
(A) (A-1) Sodium N-coconut oil fatty acid-N-methyl taurate 2.00
(A) (A-2) Potassium N-coconut oil fatty acid acylglycine 0.80
(B) (B-1) N-lauroyl-N'-carboxymethyl-N'-
Sodium hydroxyethylethylenediamine 3.00
(B) (B-2) Lauryl amidopropyl betaine 2.00
(C) Propylene glycol laurate 0.70
(D) Sorbitol 5.60
(E) Trimethylglycine 4.00
(F) Hydrolyzed silk 0.05
(F) Sodium lauroyl hydrolyzed silk 0.10
(F) Hydrolyzed pea protein 0.08
Polyethylene glycol distearate (1) 0.90
Palm kernel oil fatty acid diethanolamide (1) 0.70
Polyoxyethylene coconut oil fatty acid glyceryl 1.50
BisPEG-18 methyl ether dimethyl silane 0.18
Olive oil PEG-7 carboxylate Na 0.10
Disodium edetate 0.30
Methyl parahydroxybenzoate 0.30
Bergamot fruit oil 0.01
Rosemary leaf oil 0.01
Rosemary leaf extract 0.01
Bilberry Leaf Extract 0.01
Peppermint Leaf Extract 0.01
Chamomile flower extract 0.01
Saxifrage extract 0.01
Hawthorn fruit extract 0.01
Sodium dihydrogen phosphate 0.70
Sodium monohydrogen phosphate 0.05
Fragrance 0.55
Purified water 78.56
Total 100.00
pH (20℃): 6.78
Viscosity (20℃): 1,650mPa・s

The present invention makes it possible to obtain a cleaning composition that foams well, leaves the skin feeling moisturized immediately after rinsing, maintains the moisturized feeling after rinsing, and is not sticky.

Claims (5)

(A) (A-1) N-acylmethyltaurine salt and (A-2) N-acylglycine salt,
(B) an amphoteric surfactant,
(C) propylene glycol laurate,
wherein the content of the component (A) is 2.5 to 6 mass %, and the mass ratio of the component (A) to the combination of the component (A) and the component (B) (A)/((A)+(B)) is 0.33 to 0.56 . 2. The cleaning composition according to claim 1 , wherein the component (B) is one or more selected from the group consisting of (B-1) imidazolinium-type amphoteric surfactants and (B-2) amidopropyl betaine-type amphoteric surfactants. The cleaning composition according to claim 1 , further comprising a sugar alcohol as component (D). The cleaning composition according to claim 1 , further comprising an amino acid derivative as component (E). 2. The cleaning composition according to claim 1 , further comprising a hydrolyzed protein or a derivative thereof as a component (F).