JP4288480B2 - Antiperspirant / deodorant - Google Patents

Description

  The present invention relates to a composition containing a moisture-absorbing and releasing powder. Specifically, the present invention relates to a composition that quickly absorbs sweat and releases the absorbed sweat to enhance skin comfort.

  Conventionally, examples of highly hygroscopic substances include calcium chloride, magnesium chloride, lithium chloride, silica gel, activated carbon, and zeolite. However, when it is used for humans, there are problems such as skin irritation and stickiness when the moisture-releasing property is low or deliquescence is present.

  As a method for suppressing stickiness and sweating, an antiperspirant that absorbs sweat at the time of sweating and suppresses stickiness and sweating of the skin by using a calcium alginate spherical powder-containing external preparation has been proposed (Patent Document 1: JP, 6-107519, A). However, although it absorbs sweat and suppresses stickiness, it is inferior in moisture release.

  Further, although cosmetics containing a surface-treated sponge fiber crushed material have been proposed (Patent Document 2: Japanese Patent Laid-Open No. 6-107520), the moisture absorption and desorption properties are satisfactory although they are excellent in antistatic effect and blend well with oil. It wasn't going to be good.

  In addition, a moisture-absorbing and moisturizing pigment obtained by coating the surface of the pigment with soybean protein (Patent Document 3: Japanese Patent Laid-Open No. 9-302260) and an antiperspirant using a galactomannan-derived moisture absorbing / releasing material have been proposed. (Patent Document 4: Japanese Patent Application Laid-Open No. 2002-249421) However, it has been desired to have a moisture absorption / release property that is insufficient and that is excellent in the moisture absorption / release property.

JP-A-6-107519 JP-A-6-107520 JP 9-302260 A JP 2002-249421 A

  This invention is made | formed in view of the said situation, and it aims at providing the composition which improves the comfort of skin by absorbing sweat quickly and desorbing the absorbed sweat.

The present inventor has conducted intensive investigations to achieve the above objects, nylon, ethylene vinyl alcohol copolymer, a powder of cotton and polyester, the particle diameter 1 to 200 [mu] m, at 20 ℃ · 100% RH Moisture absorption having a moisture absorption ratio of 65 to 80% and a ratio of moisture absorption represented by (moisture absorption rate at 20 ° C. and 100% RH) / (moisture absorption rate at 20 ° C. and 45% RH) is 2.3 to 3.5 It was found that the moisture-releasing powder absorbs sweat quickly and releases the absorbed sweat, thereby improving skin comfort. Specifically, by using the above powder in the composition, it is possible to release sweat once absorbed, so that the ability to absorb sweat lasts and there is no clogging when filling the container, suppressing sweat and odor In addition, the present inventors have found that there is no waste at the time of coating, and have made the present invention.

  Furthermore, skin comfort can be improved by making the powder a spherical shape or a powder obtained by pulverizing fibers.

Accordingly, the present invention provides the following antiperspirant / deodorant .
[1]. Nylon, ethylene vinyl alcohol copolymer, cotton and polyester powders are selected, the particle diameter is 1 to 200 μm, the moisture absorption at 20 ° C. and 100% RH is 65 to 80% , and (20 ° C. It contains a powder having a moisture absorption ratio of 2.3 to 3.5 represented by (moisture absorption rate at 100% RH) / (moisture absorption rate at 20 ° C. and 45% RH) and silicic anhydride. An antiperspirant and deodorant that is characterized.
[2]. The antiperspirant / deodorant according to [1], which is a powder spray type antiperspirant / deodorant.

  ADVANTAGE OF THE INVENTION According to this invention, the composition which improves the comfort of skin can be provided by absorbing sweat quickly and desorbing the absorbed sweat.

Hereinafter, the present invention will be described in more detail.
Hygroscopic moisture release powder of the present invention, nylon, ethylene vinyl alcohol copolymer, a powder selected from cotton and polyester. These can be used alone or in combination of two or more.

  The particle diameter of the powder is 1 to 200 μm, preferably 1 to 100 μm, more preferably 3 to 50 μm. If the particle size is less than 1 μm, the elongation may be poor when applied on the skin, or in the case of an aerosol formulation, it may be lost when inhaled. On the other hand, when it exceeds 200 μm, it feels rough.

  In the present invention, the particle diameter is a value measured by a method using a laser particle size measuring device (LMS-30 type) (Seishin Enterprise Co., Ltd.).

  The powder of the present invention has a moisture absorption rate of 20% or more at 20 ° C. and 100% RH, and a moisture absorption rate represented by (moisture absorption rate at 20 ° C. and 100% RH) / (moisture absorption rate at 20 ° C. and 45% RH). The ratio is 1.2 or more. A higher ratio of moisture absorption and moisture absorption is preferred. If the moisture absorption rate is less than 20%, it becomes very easy to feel stickiness. If the moisture absorption ratio is less than 1.2, the moisture will be absorbed, but it will be difficult to release moisture, and the stickiness will remain. The upper limit of the moisture absorption rate is not particularly limited, but is about 300%.

The moisture absorption rate is measured by the following method.
1 g of the powder is put into a petri dish having a diameter of 7 cm, dried by a vacuum dryer at 70 ° C. for 24 hours, and the mass is measured (blank mass). Subsequently, it is put into a 100% RH thermostat at 20 ° C. for 24 hours, and the mass is measured (mass after moisture absorption). Using the obtained value, the moisture absorption rate (20 ° C., 100% RH) is calculated by the following formula (1). Further, the moisture absorption rate (20 ° C./45% RH) is calculated by the same method except that the thermostat is set to 45% RH. From the obtained moisture absorption rate, a ratio of moisture absorption rate represented by (moisture absorption rate at 20 ° C. and 100% RH) / (moisture absorption rate at 20 ° C. and 45% RH) is calculated.
Moisture absorption rate (%) = (mass after moisture absorption-blank mass) / blank mass × 100 (1)

For example, a powder that meets the above conditions, by utilizing the moisture absorbing moisture release fibers in recent years to the garment, have been items market to appeal the comfort. When using such a fiber, the fiber is cut, crushed, pulverized, etc., and within the range of the moisture absorption ratio and the moisture absorption ratio of the present invention, and is made into a powder having a particle diameter of 1 to 200 μm, The powder of the present invention can be obtained.

  As a method for cutting, crushing and pulverizing the fibers, usual methods can be used. However, as a method for pulverizing the fibers without breaking the shape as much as possible, it is preferable to use Micros (manufactured by Nara Machinery Co., Ltd.).

Fibers usable in powder of the present invention, as nylon fibers, Haigura (manufactured by Unitika Ltd.), as the ethylene-vinyl alcohol fibers, Sofisuta (produced by Kuraray Co., Ltd.), as a cotton and polyester fibers, Sky Cool (manufactured by Asahi Kasei Corporation), and the like. It can be used in combination of at least one kind alone, or two or, among these, Ha Igura (manufactured by Unitika Ltd.) are preferred.

  The shape of the powder is preferably spherical, particularly spherical, from the viewpoint of smoothness and good elongation.

  The blending amount of the powder is preferably 0.01 to 50% by mass in the composition, more preferably 0.1 to 20% by mass, and particularly preferably 0.1 to 10% by mass. If the amount is too small, the moisture absorption and moisture release effect may not be obtained, and if it is too much, the feeling of use may be deteriorated.

The composition of the present invention can contain other components such as an antiperspirant, a bactericidal agent, and a deodorant contained in the cosmetic composition as long as the effects of the present invention are not impaired.

  Antiperspirants used in the present invention include chlorohydroxyaluminum, zinc paraphenolsulfonate, aluminum hydroxide, aluminum chloride, aluminum sulfate, aluminum citrate, aluminum acetate, basic aluminum chloride, aluminum phenolsulfonate, β -Aluminum naphthol disulfonate, sodium perborate, aluminum zirconium octachlorohydrate, aluminum zirconium pentachlorohydrate, aluminum zirconium tetrachlorohydrate, aluminum zirconium trichlorohydrate, zirconium chlorohydrate, potassium aluminum sulfate, allantochlorohydroxy Aluminum, basic aluminum bromide, aluminum naphthalene Acid, basic aluminum iodide, and zinc oxide. These can be used alone or in combination of two or more. When mix | blending an antiperspirant, it is preferable to mix | blend 5-30 mass% in a composition.

  The fungicides used in the present invention include benzalkonium chloride, triclosan, isopropylmethylphenol, 3,4,4-trichlorocarbanilide (TC), triethyl citrate (TEC). , Benzotonium chloride, alkyltrimethylammonium chloride, cetylpyridinium chloride, halocarban, hinokitiol, zinc pyrithione, piroctone olamine, resorcinol, phenol, sorbic acid, salicylic acid, hexachlorophene, chlorhexidine gluconate, chlorhexidine hydrochloride, silver supported zeolite, silver Examples include supported silica. These can be used alone or in combination of two or more. When mix | blending a disinfectant, it is preferable to mix | blend 0.1-5 mass% in a composition.

  Examples of the deodorant used in the present invention include zinc oxide, zinc oxide composite powder, activated carbon, plant extracts such as eucalyptus extract and green tea extract, magnesia silica, magnesium silicate and the like. These can be used alone or in combination of two or more. When mix | blending a deodorizer, it is preferable to mix | blend 1-10 mass% in a composition.

  In addition, powder components, water-soluble components, liquid fats and oils, solid fats and oils, waxes, hydrocarbon oils, higher fatty acids, higher alcohols, ester oils, silicone oils, anionic surfactants, cationic surfactants, amphoteric surfactants, non- Ionic surfactant, moisturizer, water-soluble polymer compound, thickener, film agent, UV absorber, sequestering agent, sugar, amino acid, organic amine, polymer emulsion, pH adjuster, skin nutrient, vitamin Antioxidants, antioxidant assistants, fragrances, water and the like can be appropriately blended as necessary. These can be used alone or in combination of two or more.

  The composition of the present invention improves skin comfort by absorbing sweat quickly and releasing the absorbed sweat. In addition, once absorbed sweat can be released, the ability to absorb sweat lasts, there is no clogging when filled in a container, sweat and odor are suppressed, and there is no waste during application. . Therefore, it is suitable for cosmetics such as body powder and foundation, and antiperspirant / deodorant.

  The composition of this invention can be manufactured by a conventional method according to the target dosage form. The dosage form of the present invention is not particularly limited, and any dosage form such as liquid, emulsion, cream, gel or powder can be used.

  Although the container of this invention is not specifically limited, An aerosol can, a film laminated tube, an aluminum laminated tube, an aluminum laminated package, a plastic bottle, etc. can be used.

  The preparation method and use method of the composition of the present invention are not particularly limited, and can be prepared according to the usual method of each dosage form. Can be used.

  EXAMPLES Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated concretely, this invention is not restrict | limited to the following Example. In the following examples, “%” of the composition indicates mass%, the ratio indicates the mass ratio, and the amount of each component in the table is an amount converted into a pure component.

[Examples 1 to 3 and Comparative Examples 1 to 5]
Powder spray type antiperspirant / deodorants having the compositions shown in Tables 1 and 2 were prepared according to a conventional method.
The resulting composition was mixed with a propellant and filled into a container. About the obtained thing, the comfort after exercise, the feeling of smoothness, the effect of suppressing sweat, the effect of suppressing odor, the absence of clogging, and the absence of mussels were evaluated based on the following methods. The results are shown in Tables 1 and 2. In addition, it shows in Table 3 about the raw material of a powder, a shape, a processing method, a moisture absorption, the ratio of a moisture absorption, and a particle diameter.

東洋製罐（株）製アルミニウム缶に日本プリシジョンバルブ社製ストレートシャンクションバルブをつけて使用した。
＊１ サンスフェアＨ−１２１（洞海化学工業（株）製）
＊２ ＫＳＰ−１０１（信越化学工業（株）製）
＊３ 球状、平均粒径６μｍ、吸油量１５０ｍＬ／１００ｇ
＊４ クジン抽出液（丸善製薬（株）製）

A straight junction valve manufactured by Nippon Precision Valve Co., Ltd. was attached to an aluminum can manufactured by Toyo Seikan Co., Ltd. and used.
* 1 Sunsphere H-121 (manufactured by Dokai Chemical Industry Co., Ltd.)
* 2 KSP-101 (Shin-Etsu Chemical Co., Ltd.)
* 3 Spherical shape, average particle size 6μm, oil absorption 150mL / 100g
* 4 Kujin extract (manufactured by Maruzen Pharmaceutical Co., Ltd.)

容器：東洋製罐（株）製アルミニウム缶に日本プリシジョンバルブ社製ストレートシャンクションバルブをつけて使用した。
＊１ サンスフェアＨ−１２１（洞海化学工業（株）製）
＊２ ＫＳＰ−１０１（信越化学工業（株）製）
＊３ 球状、平均粒径６μｍ、吸油量１５０ｍＬ／１００ｇ
＊４ クジン抽出液（丸善製薬（株）製）

Container: Toyo Seikan Co., Ltd. aluminum can was used by attaching a straight junction valve manufactured by Nippon Precision Valve Co., Ltd.
* 1 Sunsphere H-121 (manufactured by Dokai Chemical Industry Co., Ltd.)
* 2 KSP-101 (Shin-Etsu Chemical Co., Ltd.)
* 3 Spherical shape, average particle size 6μm, oil absorption 150mL / 100g
* 4 Kujin extract (manufactured by Maruzen Pharmaceutical Co., Ltd.)

The common compositions in Tables 1 and 2 are shown below.
Common composition (%) in antiperspirant / deodorant composition
POE glyceryl triisostearate (20) 15.00 Dipropylene glycol 1.00 L-menthyl glyceryl ether 0.05
Plant-based squalane 0.10
Fragrance (fragrance composition B described in JP-A-2003-073249) 1.00

The following are evaluation methods for comfort after exercise, smooth feeling, sweat-suppressing effect, odor-suppressing effect, no clogging, and no wrinkles.
About each obtained composition, (1)-(3) and (5) performed sensory evaluation using the general panel (n = 20).

(1) Comfort after exercise The same panel was both sprayed and sprayed with the composition, and sensory evaluation was performed according to the following evaluation criteria.
(Composition not sprayed)
After walking for 10 minutes in an environment of 30 ° C and 80% RH, move to an environment of 20 ° C and 45% RH and rest for 10 minutes. I repeated that one more time.
(Composition spray)
The composition is sprayed on the entire upper body in advance, and after walking for 10 minutes in an environment of 30 ° C. and 80% RH, the composition is moved to an environment of 20 ° C. and 45% RH and rested for 10 minutes. Repeat that one more time.
<Evaluation criteria>
○: 16 or more out of 20 responded that spraying was more comfortable than spraying.
Δ: 6 or more of 20 people and 15 or less answered that it feels slightly more comfortable to spray than unsprayed.
X: 5 or less out of 20 responded that spraying and spraying were equivalent.

(2) Smooth feeling Keep the body resting at 30 ° C and 80% RH for 20 minutes to acclimate the body to the environment. Thereafter, in the same environment, the composition was sprayed from the distance of 10 cm away from the skin to the inner side of the upper arm for about 2 seconds (the upper arm inner part 15 cm width was reciprocated three times), and the dry feeling was subjected to sensory evaluation according to the following evaluation criteria.
<Evaluation criteria>
○: More than 16 out of 20 responded that they felt smooth.
Δ: 6 or more out of 20 and 15 or less replied that they felt a smooth feeling.
×: 5 or less of 20 responded that they felt a smooth feeling.

(3) The effect of suppressing sweat and the effect of suppressing odor The following evaluation criteria for the effect of suppressing the sweat after 1 hour by spraying the composition on the armpit in an environment of 30 ° C and 80% RH and the effect of suppressing the odor Sensory evaluation was performed according to
<Evaluation criteria>
○: More than 16 out of 20 responded that they felt effective.
Δ: 6 or more out of 20 and 15 or less answered that they felt the effect.
×: 5 or less of 20 people answered that they feel the effect.

(4) No clogging The composition was filled into aerosol cans (20) and stored for one month in an inverted state at 45 ° C. The absence of clogging when jetted after storage was evaluated according to the following evaluation criteria.
<Evaluation criteria>
○: 1 of 20 was not clogged.
Δ: 1 to 5 of 20 clogged.
X: Six or more of 20 were clogged.

(5) Absence of Muses The sensory evaluation of the absence of mussels when the composition was applied to the entire upper body was performed according to the following evaluation criteria.
<Evaluation criteria>
○: None of the 20 people had any problems.
Δ: 1 to 4 out of 20 people
X: There were 5 or more people out of 20.

[ Reference Example 1 ]
A deodorant stick having the composition shown in Table 6 was prepared according to a conventional method and filled into a container.

使用容器 （株）吉野工業所製ポリプロピレン／ポリアセタール容器
＊１ 球状、平均粒径１０μｍ、吸油量１００ｍＬ／１００ｇ
＊２ 特開２００３−０７３２４９号公報記載 香料組成物Ｄ

Container used Polypropylene / polyacetal container manufactured by Yoshino Kogyo Co., Ltd. * 1 Spherical shape, average particle size 10 μm, oil absorption 100 mL / 100 g
* 2 Perfume composition D described in JP-A-2003-073249

[ Reference Example 2 ]
A mist type antiperspirant deodorant having the composition shown in Table 7 was prepared according to a conventional method and filled in a container.

容器 イノアック社製ポリエチレンテレフタレート／ポリエチレンナフタレート容器、（株）三谷バルブ製スライドキャップ付きディスペンサー
＊１ クジン抽出液（丸善製薬（株）製）
＊２ オルガソール２００２（エルフアトケム製）
＊３ 球状、平均粒径６μｍ、吸油量１５０ｍＬ／１００ｇ
＊４ 特開２００３−０７３２４９号公報記載 香料組成物Ｅ

Container Polyethylene terephthalate / polyethylene naphthalate container manufactured by INOAC, dispenser with slide cap manufactured by Mitani Valve Co., Ltd. * 1 Kujin extract (manufactured by Maruzen Pharmaceutical Co., Ltd.)
* 2 Olgasol 2002 (made by Elf Atchem)
* 3 Spherical shape, average particle size 6μm, oil absorption 150mL / 100g
* 4 Perfume composition E described in JP-A-2003-073249

[ Reference Example 3 ]
A sheet-like antiperspirant deodorant having the composition shown in Table 12 was prepared according to a conventional method.

＊１ 球形、平均粒径１０μｍ、吸油量１００ｍＬ／１００ｇ
＊２ ＢＦＧｏｏｄｒｉｃｈ社製 ペムレンＴＲ−２
＊３ クジン抽出液（丸善製薬（株）製）
＊４ ファルコレックス ソウハクヒ（一丸ファルコス（株）製）
＊５ 特開２００３−０７３２４９号公報記載 香料組成物Ａ

* 1 Spherical shape, average particle size 10μm, oil absorption 100mL / 100g
* 2 Pemlen TR-2 manufactured by BFGoodrich
* 3 Kujin extract (manufactured by Maruzen Pharmaceutical Co., Ltd.)
* 4 Falco Rex Sohakuhi (manufactured by Ichimaru Falcos)
* 5 Perfume composition A described in JP-A-2003-073249

Sheet type B: 100% spunlace nonwoven fabric with cotton fiber (1.7 dtex × 24 mm): stretched polypropylene (OPP) (thickness 20 μm) / PE (thickness 15 μm) / aluminum foil (thickness 9 μm) / PE ( A container formed by using a sheet having a four-layer structure (thickness 40 μm) (outer layer / adhesive layer / middle layer / inner layer). In addition, a two-layered sheet made of OPP (thickness 50 μm) / PET (thickness 50 μm) was used as the lid forming sheet.
Form of packaging material: A cylindrical body is formed by stacking and joining the inner surfaces of both side edges in the longitudinal direction of the above-mentioned packaging material in which a sheet ejection opening or a sheet ejection opening forming cut is formed, and a sheet laminate is inserted inside The front and rear ends of the cylindrical body are joined to each other so that the opening is substantially centered on the one surface side, and the acrylic pressure-sensitive adhesive is provided on one surface side so as to cover the opening or the opening forming cut. A film (OPP 50 μm / dry lamination / PET 50 μm) is applied to form a package.

[ Reference Example 4 ]
An antiperspirant deodorant for feet having the composition shown in Table 13 was prepared according to a conventional method and filled into a container.

容器 東洋製罐（株）製アルミニウム缶＋日本プリシジョンバルブ社製ストレートシャンクションバルブ
＊１ 比表面積 ６２９ｍ²／ｇ 細孔径 ６．８ｎｍ（水澤化学工業（株）製）
＊２ ファルコレックス ユーカリＥ（一丸ファルコス（株）製）
＊３ 特開２００３−０７３２４９号公報に記載のＡ〜Ｅから適宜選ばれる。

Container Aluminum can made by Toyo Seikan Co., Ltd. + Straight junction valve manufactured by Nippon Precision Valve Co., Ltd. * 1 Specific surface area 629 m ² / g Pore diameter 6.8 nm (manufactured by Mizusawa Chemical Co., Ltd.)
* 2 Falco Rex Eucalyptus E (Ichimaru Falcos Co., Ltd.)
* 3 Appropriately selected from A to E described in JP-A-2003-073249.

[ Reference Example 5 ]
Sheet-like sweat and oil-blotting sheets having the compositions shown in Table 14 were prepared according to a conventional method.

＊１ 比表面積 ３２０ｍ²／ｇ 細孔径 １．０１ｎｍ（水澤化学工業（株）製）
＊２ 特開２００３−０７３２４９号公報に記載のＡ〜Ｅから適宜選ばれる。
＊３ あぶら取り紙に使用される和紙、フィルム又は不織布

* 1 Specific surface area 320m ² / g Pore diameter 1.01nm (manufactured by Mizusawa Chemical Co., Ltd.)
* 2 Appropriately selected from A to E described in JP-A-2003-073249.
* 3 Japanese paper, film or non-woven fabric used for oil blotting paper

Claims (2)

Nylon, ethylene vinyl alcohol copolymer, cotton and polyester powders are selected, the particle diameter is 1 to 200 μm, the moisture absorption at 20 ° C. and 100% RH is 65 to 80% , and (20 ° C. It contains a powder having a moisture absorption ratio of 2.3 to 3.5 represented by (moisture absorption rate at 100% RH) / (moisture absorption rate at 20 ° C. and 45% RH) and silicic anhydride. An antiperspirant and deodorant that is characterized. The antiperspirant / deodorant according to claim 1, which is a powder spray type antiperspirant / deodorant.