JPH1149636A - External preparation for massaging and cleaning skin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an external preparation for massaging and cleaning skin, excellent in both skin cleaning actions for removal of skin waste material and cleaning of aged keratin cells and massaging effects on skin for blood circulation, etc., having low irritation to skin and smooth and excellent feeling in use. SOLUTION: This external preparation for massaging and cleaning contains one or more selected from molybdenum sulfide hollow fine particle powder, tungsten sulfide hollow fine particle powder, molybdenum selenide hollow fine particle powder and tungsten selenide hollow fine particle powder. The average particle diameter of the hollow fine particle powder such as molybdenum sulfide is preferably about 0.05-2.0 μm and its content in the external preparation is properly about 0.1-50 wt.%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external preparation for skin massage and cleansing which has a smooth feeling of use, is low-irritating and can exert good skin cleansing and massage effects. More specifically, a skin massager comprising one or more selected from molybdenum sulfide hollow fine particle powder, tungsten sulfide hollow fine particle powder, molybdenum selenide hollow fine particle powder and tungsten selenide hollow fine particle powder. And an external preparation for cleaning.

[0002]

2. Description of the Related Art In external preparations for skin massage and skin cleansing, scrub preparations have been conventionally used in order to improve the effect of washing and removing skin wastes and aged keratinocytes, or the effect of promoting blood circulation. Has been formulated.
Examples of such a scrub agent include endocarp such as apricots, walnuts and peaches, seeds such as almonds and watermelons, trunks of birch,
Corn cobs, cottonseed husks, pomace such as sunflower oil, jojoba oil, coconut oil, plant scrubs such as hydrogenated jojoba oil, crab shells, egg shells, and animal scrubs such as hydrogenated tallow Agents, nylon powder, polyvinyl chloride powder, polystyrene powder, cellulose beads, polyacryl powder, polypropylene powder, organic powder-based scrubbing agents such as polyethylene powder, silica beads, alumina powder, calcium carbonate powder, laponite powder, zirconium beads, salt grains And other inorganic powder-based scrub agents have been used.

[0003] However, many of the above scrubbing agents are highly irritating to the skin, and when using a skin massage agent containing them, they often cause pain or discomfort or give a rough feeling of use. Scrubbing agents having a mild action on the skin have also been studied, and granulated granules with a water-insoluble binder (Japanese Patent Publication No. 4-39444), an organopolysiloxane elastomer powder (Japanese Patent Publication No. 4-66446),
Water-soluble polymer granulated granules (Japanese Patent Publication No. 6-53649), a compressible collapsible soft resin capsule containing an oil component (Japanese Patent Publication No. Hei 6-53649)
-99276) and the like, but none of which has a sufficient skin cleansing effect, an aging keratinocyte removing effect, and a massage effect, and has low irritation to the skin and a smooth feeling of use. .

[0004]

Therefore, the present invention is excellent in both skin cleansing action such as washing and removal of skin waste and senescent keratinocytes, and skin massage effect such as blood circulation promotion, and has low skin effect. An object of the present invention is to provide an external preparation for skin massage and cleansing which is irritating, smooth and has a good feeling of use.

[0005]

Means for Solving the Problems The present inventor has searched for a scrub agent useful for solving the above problems. As a result, the inventors have found that hollow fine-particle powder prepared from a metal dichalcogenide such as molybdenum sulfide, which has been reported to be used as a solid lubricant, can be suitably applied as a scrub agent, and completed the present invention. That is, in the present invention, one or more selected from molybdenum sulfide hollow fine particle powder, tungsten sulfide hollow fine particle powder, molybdenum selenide hollow fine particle powder and tungsten selenide hollow fine particle powder are used for skin massage and It is made to be contained in an external preparation base for cleaning.

[0006]

The external preparation for skin massage and cleansing according to the present invention has a structure similar to carbon fullerene or nanotube in which hollow fine particles such as molybdenum sulfide are layered in a nest, so that sebum or skin The above waste can be well absorbed and removed. In addition, since the hollow fine particle powder also has good lubricity, an external preparation for skin massage and cleansing containing the same exhibits a very smooth feeling of use when rubbed on the skin, and gives a feeling of foreign matter to the skin. Aged keratinocytes can be removed without providing irritation.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the external preparation for skin massage and cleansing according to the present invention, hollow fine particles such as molybdenum sulfide to be contained as a scrubbing agent are prepared by the method of R. Tenne et al. (Nature 360 444-445 (Nature 360 444-445)). 1992)), according to the method of Y. Feldman et al. (Science 267 222-225 (1995)). For the purpose of the present invention, it is preferable to control the average particle size of the hollow fine particle powder such as molybdenum sulfide to about 0.05 to 2.0 μm. If the particle diameter is smaller than the above range, sufficient skin cleansing action and aging keratinocyte removing action cannot be exerted, and if the particle size is larger than the above range, a foreign body sensation occurs during use or irritation to the skin There is a possibility that. Bases for external use for skin massage and cleansing include molybdenum sulfide, tungsten sulfide,
One or two or more kinds are selected from molybdenum selenide and tungsten selenide hollow fine particle powder and contained.
The content in the total amount of the external preparation for skin massage and cleansing is preferably about 0.1 to 50% by weight.

In the present invention, a liquid, milk, gel, paste, cream or ointment can be used as an external preparation base for skin massage and cleansing.
External preparation for skin massage and cleansing according to the present invention,
Massage lotion, massage gel, massage cream, cleansing lotion, cleansing gel,
It can be provided as a cleansing cream or a pack.

The external preparations for skin massage and cleansing according to the present invention include fats and oils, surfactants, alcohols, humectants, whitening agents, cell activators, ultraviolet absorbers, preservatives and antioxidants. , Pigments, pigments, fragrances, and other raw materials commonly used in cosmetics and skin external preparations.

[0010]

EXAMPLES Further, the features of the present invention will be described in detail with reference to examples.

Example 1 Massage lotion (1) Squalane 5.0 (% by weight) (2) Vaseline 2.0 (3) Beeswax 0.5 (4) Sorbitan sesquioleate 0.8 (5) Poly Oxyethylene (20E.O.) oleyl ether 1.2 (6) 1,3-butylene glycol 5.0 (7) Ethanol 5.0 (8) Methyl parahydroxybenzoate 0.1 (9) Carboxyvinyl polymer 0% by weight aqueous solution 20.0 (10) Potassium hydroxide 0.1 (11) Purified water 57.7 (12) Fragrance 0.1 (13) Molybdenum sulfide hollow fine particle powder 2.5 (Average particle diameter: 0.1 Production method: Mix the oil phase components (1) to (5), dissolve them by heating,
0 ° C. On the other hand, (6) to (8) are added to (11) and heated,
70 ° C. The oil phase component is added to the aqueous phase to carry out preliminary emulsification, (9) is added and mixed uniformly, then (10) is added for neutralization, and the mixture is uniformly emulsified by a homomixer. Then, the mixture is cooled, (12) and (13) are added at 40 ° C., and mixed and dispersed.

[Example 2] Cleansing lotion (1) Propylene glycol 8.00 (% by weight) (2) Polyethylene glycol 1500 5.00 (3) Hydroxyethyl cellulose 0.10 (4) Potassium hydroxide 0.05 (5) ) Purified water 69.65 (6) Ethanol 15.00 (7) Polyoxyethylene (15E.O.) oleyl ether 1.00 (8) Methyl parahydroxybenzoate 0.10 (9) Fragrance 0.10 (10) Tungsten sulfide hollow fine particle powder 1.00 (average particle diameter: 0.05 μm) Manufacturing method: (1) to (4) are added to (5) and dissolved at room temperature. (7) to (9) are dissolved in (6) and added thereto, and after uniformly dissolving, (10) is added and dispersed.

[Example 3] Cleansing lotion (1) Stearyl alcohol 0.5 (% by weight) (2) Hardened palm oil 3.0 (3) Liquid paraffin 35.0 (4) Sorbitan sesquioleate 1.6 (5) polyoxyethylene (20E.O.) sorbitan 2.4 monooleate (6) dipropylene glycol 6.0 (7) glycerin 4.0 (8) methyl paraoxybenzoate 0.1 (9) carboxy 1.0 wt% aqueous solution of vinyl polymer 15.0 (10) potassium hydroxide 0.1 (11) purified water 29.2 (12) fragrance 0.1 (13) molybdenum selenide hollow fine particle powder 3.0 (average Particle size: 0.1 μm) Production method: Mix and heat the oil phase components of (1) to (5)
0 ° C. On the other hand, (6) to (8) are added to (11) and heated,
70 ° C. The oil phase component is added to the aqueous phase to carry out preliminary emulsification, (9) is added and mixed uniformly, (10) is added for neutralization, and the mixture is uniformly emulsified by a homomixer. Then, the mixture is cooled, (12) and (13) are added at 40 ° C., and mixed and dispersed.

Example 4 Massage Gel (1) Dipropylene glycol 7.0 (% by weight) (2) Glycerin 8.0 (3) Polyoxyethylene (15E.O.) Oleyl ether 1.0 (4) 4. Methyl paraoxybenzoate 0.1 (5) Fragrance 0.1 (6) Carboxyvinyl polymer 0.4 (7) Methylcellulose 0.2 (8) Purified water 78.1 (9) Tungsten selenide hollow fine particle powder 5. 0 (average particle size: 0.25 μm) (10) Potassium hydroxide 0.1 Production method: (3) is added to (1) and (2), and the mixture is heated to 50 ° C. and dissolved.
Next, (4) and (5) are added and dissolved. In addition, (6) and (7)
The solution uniformly dissolved in (8) is gradually added with stirring, and (9) is added and dispersed, and then (10) is added for neutralization.

Example 5 Cleansing Gel (1) Liquid paraffin 12.0 (% by weight) (2) Glyceryl tri-2-ethylhexanoate 45.0 (3) Polyoxyethylene (10E.O.) octyldodecyl 10.0 Ether (4) Sorbitol 10.0 (5) Polyethylene glycol 400 5.0 (6) Acylmethyltaurine 5.0 (7) Methyl parahydroxybenzoate 0.1 (8) Purified water 7.8 (9) Perfume 0.1 (10) Molybdenum sulfide hollow fine particle powder 2.5 (average particle diameter: 0.1 μm) (11) Tungsten sulfide hollow fine particle powder 2.5 (average particle diameter: 0.5 μm) Production method: (1 ) To (3) oil phase components are mixed and dissolved by heating,
And On the other hand, the aqueous phase components (4) to (8) are mixed and dissolved by heating to 70 ° C., and the oil phase is gradually added thereto, followed by uniform emulsification by a homomixer. Then cool and at 40 ° C
(9) to (11) are added, mixed and dispersed.

[Example 6] Massage cream (water-in-oil type) (1) Microcrystalline wax 9.0 (% by weight) (2) Solid paraffin 2.0 (3) Beeswax 3.0 (4) Vaseline 5. 0 (5) Reduced lanolin 5.0 (6) Squalane 29.0 (7) Hexadecyl adipate 10.0 (8) Glyceryl monostearate 3.5 (9) Polyoxyethylene (20E.O.) Sorbitan 1.0 Monostearic acid ester (10) Tocopherol acetate 0.2 (11) Propylene glycol 5.0 (12) Methyl parahydroxybenzoate 0.1 (13) Purified water 17.1 (14) Molybdenum sulfide hollow fine powder Body 5.0 (average particle diameter: 0.5 μm) (15) Molybdenum selenide hollow fine particle powder 5.0 (average particle diameter: 0.5 μm) (16) Fragrance 0.1 Production method: (1) to (10) ) The oil phase components are mixed and dissolved by heating.
4) Add (15) and disperse with a homomixer.
And On the other hand, (11) and (12) were added to (13) and dissolved by heating.
70 ° C. This aqueous phase was gradually added to the oil phase and pre-emulsified, and then homogenized uniformly with a homomixer,
After cooling, add (16) at 40 ° C. and mix.

[Example 7] Cleansing cream (oil-in-water type) (1) Stearic acid 2.0 (% by weight) (2) Cetanol 3.0 (3) Vaseline 10.0 (4) Liquid paraffin 33.0 ( 5) Isopropyl myristate 7.5 (6) Glyceryl monostearate 2.5 (7) Polyoxyethylene (20E.O.) Sorbitan 2.5 Monostearate (8) Glycerin 5.0 (9) Paraoxy Methyl benzoate 0.1 (10) Potassium hydroxide 0.1 (11) Purified water 21.7 (12) Molybdenum sulfide hollow fine particle powder 5.0 (average particle diameter: 0.2 μm) (13) Tungsten sulfide hollow Fine particle powder 5.0 (average particle diameter: 0.55 μm) (14) Tungsten selenide hollow fine particle powder 2.5 (average particle diameter: 1.0 μm) (15) Fragrance 0.1 Production method: (1) ~ Mix and heat-dissolve the oil phase component of (7), 70 ℃
And On the other hand, the aqueous phase components (8) to (11) are mixed and dissolved by heating, and the components (12) to (14) are added and dispersed by a homomixer. The oil phase is gradually added to the aqueous phase to perform preliminary emulsification, and then uniformly emulsified by a homomixer, and then cooled, and (15) is added and mixed at 40 ° C.

Example 8 Jelly-like wiping pack (1) hydroxyethyl cellulose 3.0 (% by weight) (2) carboxyvinyl polymer 1.0 (3) ethanol 5.0 (4) polyoxyethylene (15E. O.) Oleyl ether 1.0 (5) Methyl paraoxybenzoate 0.1 (6) Fragrance 0.2 (7) Potassium hydroxide 0.5 (8) Purified water 64.2 (9) Tungsten sulfide hollow fine particle powder Body 10.0 (average particle diameter: 0.25 μm) (10) Molybdenum selenide hollow fine particle powder 10.0 (average particle diameter: 0.25 μm) (11) Tungsten selenide hollow fine particle powder 5.0 (average (Particle size: 1.5 μm) Production method: (1) and (2) are dissolved in (8), and (4) to (6) are dissolved in (3) and added and mixed. Next, (9) to (11) are added with stirring to uniformly disperse, and (7) is added to neutralize and thicken.

The above examples of the present invention were evaluated for feeling of use, skin cleansing effect and massage effect by use tests by female panelists. At that time, in each of Examples, the hollow fine particle powder of metal dichalcogenide such as molybdenum sulfide was replaced by spherical polystyrene powder (average particle diameter: 0.5 mm) which is a commonly used scrubbing agent. Example 8 was evaluated at the same time. The use test was performed by setting 20 female panelists in their 20s to 50s as one group, and using the examples and comparative examples in each group with blinds.

First, the feeling of use is smoothness during use,
The feeling of foreign bodies and the feeling of irritation to the skin were scored by sensory evaluation according to the evaluation criteria shown in Table 1. The results are shown in Table 2 by the average value of 20 persons.

[Table 1]

[0021]

[Table 2] In Table 2, in the group using the examples of the present invention, good evaluation was obtained for the smoothness during use, and almost no foreign body sensation and skin irritation were felt. On the other hand, in the group using the comparative example, the evaluation of the smoothness at the time of use was low, and the feeling of foreign substances and the feeling of irritation to the skin were clearly recognized by almost all panelists. Comparative Example 6 particularly containing a large amount of a scrub agent
-Comparative Example 8 In the use group, a remarkable foreign-body sensation and a considerably strong irritation to the skin were observed.

The skin cleansing effect was evaluated by observing the skin surface condition of the forehead with a microscope before using the examples and comparative examples and after wiping or rinsing after use, and according to the evaluation criteria shown in Table 3. The degree was evaluated and scored. In addition, the area of the keratinocytes collected from the cheek by tape stripping before and after use was calculated. The results are shown in Table 4 as an average value of 20 persons.

[Table 3]

[0023]

[Table 4] In Table 4, the cleanliness of the skin after use was significantly increased in each of the groups using the examples of the present invention as compared with the corresponding groups using the comparative examples. Further, the area of the keratinocytes in the group using each example was significantly smaller than before use, and the degree of the decrease was significantly larger than that of the corresponding comparative example. In other words, it was shown that the removal of aged keratinocytes was promoted in the group using the examples of the present invention.

The massage effect was determined by measuring the skin blood flow in the cheeks before and after the use of the examples and comparative examples at 25 ° C. and 60% humidity.
Was evaluated by measuring with a laser Doppler blood flow meter under the conditions described above. The results are shown in Table 5.

[0025]

[Table 5] As is clear from Table 5, in the group using the examples of the present invention,
In each case, the skin blood flow rate after use of each example was significantly increased, and the increase rate was significantly higher than the increase amount of the corresponding comparative group.

The above results indicate that the examples of the present invention have an extremely smooth feeling of use, no foreign body sensation and no irritation to the skin, as compared with the comparative example containing a conventionally used scrub agent, and It also shows that it has excellent cleaning and massage effects.

In Examples 1 to 8 of the present invention, no change in the state such as agglomeration of the powder was observed even after storage at 25 ° C. for 6 months. Further, as a result of a 48-hour back obstruction sticking test by a male panelist, no skin irritation or skin sensitization was observed.

[0028]

As described in detail above, the present invention is excellent in both skin cleansing action such as washing and removal of skin wastes and senescent keratinocytes, and skin massage effect such as blood circulation promotion. An external preparation for skin massage and cleansing having low irritation, having a smooth and good feeling of use could be provided.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI A61K 7/48 A61K 7/48

Claims (3)

[Claims] 1. A skin comprising one or more selected from molybdenum sulfide hollow microparticle powder, tungsten sulfide hollow microparticle powder, molybdenum selenide hollow microparticle powder, and tungsten selenide hollow microparticle powder. An external preparation for massage and cleansing. 2. An average particle diameter of the molybdenum sulfide hollow fine particle powder, the tungsten sulfide hollow fine particle powder, the molybdenum selenide hollow fine particle powder and the tungsten selenide hollow fine particle powder is 0.05 to 2.0 μm. The external preparation for skin massage and cleansing according to claim 1, characterized in that: 3. The skin massage and cleansing cosmetic preparation according to claim 1, wherein the external preparation for skin massage and cleansing is a cosmetic for skin massage and cleansing. External preparation.