JP2001278742A - Skin cleansing agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin cleansing agent having good quality and durability of foam in the massaging removal of a persistent oily stain, e.g. a make-up cosmetic such as lip rouge, eye makeup and water-resistant foundation, having good massaging performance, giving good feeling in use and exhibiting high cleansing power. SOLUTION: The skin cleansing agent is composed of a detergent composition containing (A) a surfactant selected from anionic surfactant, nonionic surfactant and ampholytic surfactant and (B) a glyceryl ether derivative expressed by general formula (1) (R is a 4-9C alkyl or alkenyl). The detergent composition is filled in a foam-extruding container.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin cleansing agent which is excellent in persistence of foam discharged from a foam discharge container and has a particularly good detergency for removing makeup cosmetics.

[0002]

2. Description of the Related Art In a skin cleanser such as a facial cleanser or a makeup remover, which is used by filling a liquid detergent composition into a foam discharge container and discharging as a fine foam, the quality of the foam is improved. (Japanese Patent Application Laid-Open No. 5-506259), a method of using monohydric and polyhydric alcohols in combination to obtain fine and fine foams having good retention properties (Japanese Patent Application Laid-Open No. H05-50659). -132700),
Also, a method for improving detergency and foam quality, such as a method using a combination of an anionic surfactant and a nonionic surfactant to improve the detergency of oily dirt that is difficult to remove (Japanese Patent Laid-Open No. 8-165234). Have been proposed.

[0003]

However, the skin cleanser prepared by filling these cleanser compositions in a foam discharge container is liable to lose the foam when the skin is washed while massaging the skin surface with the discharged foam. The feeling of use that gives a sufficient cleaning effect cannot be obtained, and the cleaning power of oily stains such as lipstick, eye makeup, foundation and the like is not satisfactory. An object of the present invention is to provide a skin cleansing agent having good foam quality, good foam sustainability during massage washing, and good detergency against oily stains.

[0004]

Means for Solving the Problems The present inventors have developed a skin cleansing agent in which a surfactant such as an anionic surfactant and a glyceryl ether derivative having a specific structure are used in combination and filled in a foam discharge container. The present inventors have found that all the problems of the conventional foam cleaner can be improved. That is, the present invention relates to the following components (A) and (B): (A) a surfactant selected from an anionic surfactant, a nonionic surfactant and an amphoteric surfactant; )

[0005]

Embedded image

[0006] The present invention provides a skin cleanser prepared by filling a foam discharge container with a cleanser composition containing a glyceryl ether derivative represented by the formula (wherein R represents an alkyl group or an alkenyl group having 4 to 9 carbon atoms). Is what you do.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The surfactant of the component (A) used in the present invention is a hydrophilic surfactant, and examples thereof include the following.

The anionic surfactant has 7 to 23 carbon atoms.
Sulfate ester, phosphate ester, sulfonic acid and carboxylic acid surfactants having a hydrocarbon group, such as alkali metals such as sodium and potassium, alkaline earth metals such as magnesium and calcium, ammonium, mono , Di- or tri-alkanolamines having 2 to 3 carbon atoms and salts of basic amino acids such as lysine and arginine. The anionic surfactant may be added in an acid state and a basic substance may be added.

As the sulfate ester, alkyl sulfate, polyoxyethylene (average number of moles added: 0.5 to 8)
Alkyl sulfates are preferred. As the phosphate ester type, mono (or di) polyoxyethylene (average addition mole number 0 to 10) linear or branched alkyl (or alkenyl) phosphate salt is preferable. As the sulfonic acid system, α-olefin sulfonic acid salt, alkane sulfonic acid salt, polyoxyethylene (average addition mole number 0 to 10) alkyl sulfosuccinate, acylated isethionate and acylated taurine are preferable, and alkylbenzene sulfonic acid is preferable. Salts are also exemplified. As the carboxylic acid, fatty acid salts, polyoxyethylene (average number of moles added: 0)
10) Alkyl (or alkenyl) ether carboxylate and acylated amino acid salt are preferred. Examples of the amino acid residue of the acylated amino acid salt include glutamic acid, aspartic acid, alanine, glycine and the like.

[0010] Among these anionic surfactants, linear alkyl phosphates, branched alkyl phosphates, polyoxyethylene alkyl phosphates, polyoxyethylene alkyl sulfates, fatty acid salts, and acylated amino acid salts are exemplified. Particularly preferred.

Nonionic surfactants include polyoxyalkylene (alkylene chain having 2 to 4 carbon atoms, average addition mole number of 1 to 50) adduct, glycerin fatty acid ester, pentaerythritol fatty acid ester and sorbitol fatty acid ester, alkyl or Alkenyl polyglycosides and the like are exemplified. Here, the hydrophobic group of each activator has 7 to 23 carbon atoms.
Are preferred.

Examples of the polyoxyalkylene adduct include polyoxyethylene (average addition mole number: 3 to 15) alkyl ether and polyoxyethylene (average addition mole number: 3 to 1).
5) Fatty acid ester, polyoxyethylene (average addition mole number 3 to 15) sorbite fatty acid ester, polyoxyethylene (average addition mole number 3 to 15) glycerin fatty acid ester, polyoxyethylene (average addition mole number 3 to 1)
5) Hardened castor oil fatty acid ester, polyoxyethylene (average addition mole number 3 to 15) fatty acid amide condensate, polyoxyethylene (average addition mole number 3 to 15) alkylphenylformaldehyde condensate and the following formula (2) R ¹ -O- (CH ₂ CH ₂ O) _a -G (2) (wherein, R ¹ is an alkyl group or an alkenyl group, G is a reducing sugar residue (preferably having 5 to 6 carbon atoms), and a is 0 to 0 on average. 10
Is shown. And the sugar-based nonionic surfactant represented by the formula (1).

Among these nonionic surfactants, polyoxyethylene alkyl ethers, polyoxyethylene fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene hydrogenated castor oil fatty acid esters, and sugar-based nonionic surfactants are exemplified. Particularly preferred.

Examples of the amphoteric surfactant include carbobetaine, sulfobetaine, imidazolium betaine, amidobetaine, phosphobetaine, and amine oxide having a hydrocarbon group having 7 to 23 carbon atoms.

Of these amphoteric surfactants, carbobetaine, sulfobetaine, amidobetaine and amine oxide are preferred.

The component (A) is incorporated in the detergent composition in an amount of 1 to 50% by weight (hereinafter, simply referred to as%), preferably 1 to 30%, particularly preferably 3 to 20%. Good to do.

In the glyceryl ether derivative of the component (B) used in the present invention, R has 4 to 9 carbon atoms, particularly preferably 4 to 7 carbon atoms.
Those having an alkyl group, an isobutyl group, a 2-methylbutyl group and an isopentyl group are more preferable, and those having an n-pentyl group, an n-hexyl group, a 2-methylbutyl group and an isopentyl group are particularly preferable.

As the component (B), one or more components may be incorporated in the detergent composition in an amount of 1 to 30%, preferably 1 to 25%, particularly preferably 2 to 20%.

The detergent composition is formulated by dissolving, dispersing and emulsifying these essential components in a solvent such as water, a lower alcohol or a mixture thereof, and is used in water or a mixed system of water and a lower alcohol. It is preferable to dissolve or emulsify. The viscosity of the detergent composition is 150 mPa · s (temperature 25 ° C., B-type viscometer) or less, preferably 1 to 50 mPa
・ It is good to adjust to s.

The skin cleansing composition of the present invention has a good feeling when the skin is massaged with foam of the cleansing composition by further blending a polyol into the cleansing composition.
In addition, the moist feeling of the skin after washing away the detergent composition can be improved.

Examples of the polyol to be used include dihydric to octahydric alcohols. As a dihydric alcohol,
Propylene glycol, 1,3-propanediol,
1,3-butylene glycol, isoprene glycol,
Hexylene glycol, diethylene glycol, dipropylene glycol, trihydric alcohols include glycerin, tetrahydric alcohols include pentaerythritol, diglycerin, pentahydric alcohols include xylitol, glucose, and hexahydric alcohols include sorbitol and mannitol. Is sucrose as an octahydric alcohol.

Of these polyols, propylene glycol, 1,3-butylene glycol, isoprene glycol, glycerin and sorbitol are particularly preferred.

The polyol is contained in the detergent composition in an amount of from 1 to 3
0%, preferably 3 to 25%, particularly preferably 5 to 20
% Is better.

[0024] The cleaning composition used in the present invention includes components usually contained in a liquid skin cleaning composition, for example, humectants such as diethylene glycol monoethyl ether and panthenol; cationic polymers, silicone compounds and the same. Conditioning components such as derivatives; pearling agents such as ethylene glycol distearate; cationic surfactants such as cetyltrimethylammonium salt;
Coloring agents such as dyes and pigments; viscosity modifiers; pH regulators such as citric acid and potassium hydroxide; salts such as sodium chloride; plant extracts, preservatives, bactericides, chelating agents, vitamins, anti-inflammatory agents, Anti-dandruff agent, fragrance, pigment, UV absorber,
An antioxidant and the like can be appropriately compounded.

The skin cleanser of the present invention is useful for facial cleansing foam, cleansing foam, makeup remover foam, shaving foam, shampoo foam, body cleansing foam and the like.

The cleaning composition is filled in a foam discharge container which is mixed with air and discharged in a foamed state. The type of the foam discharge container is not limited, and for example, a squeeze former type that presses and discharges the body of a soft container, a pump former type that discharges from a pressing pump, and the like can be suitably used. Among them, a foaming mechanism provided with a porous membrane is preferable, and the thickness through which the liquid detergent composition passes is 0.1 mm.
A porous film such as a sponge, a sintered body, and a net having a thickness of about 1 to 2 mm may be provided in a single layer or a plurality of layers or at a plurality of locations (for example, Japanese Patent Application Laid-Open No. 7-252131,
No. 16567, Japanese Unexamined Utility Model Publication No. 3-7963, and Japanese Unexamined Patent Application Publication No. 7-215352). At this time, the mesh size of the porous membrane is preferably 50 to 500 mesh, and more preferably 150 to 400 mesh.

The foam density of the skin cleanser of the present invention is 0.0
It is preferably from 3 to 0.25 g / mL, particularly preferably from 0.06 to 0.15 g / mL. The foaming density is determined by measuring the weight of foam foamed and discharged from a foam discharge container into a 100 mL measuring cylinder.

[0028]

EXAMPLES The foam quality, foam sustainability, detergency and massage properties of the skin cleanser were evaluated according to the following methods. (1) Foam quality 1 g of foam was discharged to the palm, and the texture of the foam was visually determined according to the following evaluation criteria. 〇: Fine and good shape retention. Δ: coarse and poor in shape retention. ×: no foaming. (2) Foam persistence The forearm to which the solid powder foundation was applied at a rate of 10 mg / 10 cm ² was massaged with 1 g of the discharged foam,
It was determined according to the following evaluation criteria. 〇: Bubbles do not disappear for 30 seconds or more. Δ: Bubbles disappear within 10 to 30 seconds. ×: Bubbles disappear within 10 seconds. (3) Makeup cosmetic detergency The forearm to which oily solid lipstick was applied at a rate of 10 mg / 5 cm ² was washed with 1 g of discharged foam for 30 seconds, and the amount of remaining lipstick was visually checked according to the following evaluation criteria. Was determined. 〇: Fall almost completely. Δ: Does not fall very well. X: It does not fall at all. (4) Massage properties A face wash test was performed with 1 g of the discharged foam by 10 specialized panelists, and the number of panelists who answered that the foam had a good feel during massage was judged according to the following evaluation criteria. 〇: 6 or more △: 3 to 5 ×: 2 or less

Examples 1 to 4 The cleaning compositions shown in Table 1 were filled in a pump former container having a net of 200 mesh, and various properties of foams discharged and foamed were evaluated.

[0030]

[Table 1]

All of Examples 1 to 4 (products of the present invention) exhibited excellent effects on foam quality, foam persistence, cleansing cosmetic cleansing power and massage properties.

Examples 5 to 13 The cleaning compositions shown in Table 2 were filled in the same foam discharge container as in Example 1, and the foam was discharged to evaluate the same.
Excellent effects were shown in foam continuity, makeup cosmetic detergency, and massage properties. When the cleaning compositions used in Examples 5 to 8 were used without being filled in a foam discharge container, the foam retention was insufficient in all cases, and the foams were very easy to flow over the skin. As a result, sufficient detergency was not obtained.

[0033]

[Table 2]

[0034]

EFFECTS OF THE INVENTION The skin cleanser of the present invention has a good foam quality and a good foam continuity when massage-washing oily stains which are hard to remove, for example, makeup cosmetics such as lipstick, eye makeup, water-resistant foundation, etc. It is excellent, has good massage properties, has good usability, and has good cleaning properties.

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Ichiro Sugai 2-1-3 Bunka, Sumida-ku, Tokyo F-term in Kao Corporation Research Laboratories (reference) 4C083 AC111 AC112 AC122 AC171 AC172 AC182 AC692 AC762 AC902 BB04 BB05 BB07 CC23 CC24 DD08 EE06 EE07

Claims (3)

[Claims] 1. The following components (A) and (B): (A) a surfactant selected from an anionic surfactant, a nonionic surfactant and an amphoteric surfactant, (B) a general formula (1) Embedded image (Wherein, R represents an alkyl group or an alkenyl group having 4 to 9 carbon atoms.) A skin cleanser prepared by filling a foam discharge container with a cleanser composition containing a glyceryl ether derivative represented by the following formula: 2. The skin cleanser according to claim 1, further comprising a polyol (component (C)) in the cleanser composition. 3. The skin cleanser according to claim 1, wherein the foam discharge container has a porous membrane structure.