JP2012106949A - Antiperspirant deodorant spray - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antiperspirant deodorant spray which can be uniformly sprayed with excellent redispersibility of powder, and has excellent texture without residual whiteness or stickiness to the skin after application.SOLUTION: The antiperspirant deodorant spray includes: a composition containing (A) chlorohydroxy aluminum, (B) silicone-coated silica in which the surface is covered with 6-15 pts.mass of silicone oil relative to 100 pts.mass of silica and (C) an oily component; and a propellent. The silicone oil is preferably methyl hydrogen polysiloxane.

Description

  The present invention relates to an antiperspirant deodorant spray.

  Conventionally, antiperspirant deodorant sprays containing antiperspirant ingredients have been widely used as cosmetics to prevent the stickiness and body odor caused by sweat. Especially, in order to reduce a sticky feeling more, the antiperspirant deodorant spray which mix | blended various powder is used preferably.

  In general, the antiperspirant deodorant spray is one that expresses a deodorant effect by dispersing and spraying the content composition by shaking with a propellant. However, when powder is blended with such antiperspirant deodorant spray, the powder settles on the bottom of the container when it is left standing, so if the powder is not sufficiently redispersed when shaken, the powder is sprayed uniformly. There is a problem that the desired deodorant effect cannot be sufficiently exhibited. In addition, when the redispersibility of the powder is inferior, there is also a problem that agglomerates of the powder are sprayed to cause white residue on the skin.

  Therefore, attempts have been made to increase the redispersibility of powders in antiperspirant deodorant sprays containing powders. Specifically, a powder aerosol composition comprising a powder component, a propellant containing at least one of liquefied petroleum gas and dimethyl ether, at least one of a nonionic surfactant and silicone oil, and ethyl alcohol. (For example, refer to Patent Document 1), powder-containing aerosol composition containing liquefied petroleum gas and inorganic powder, and containing sorbitan fatty acid ester and / or polyoxyalkylene alkyl ether in a specific mixing ratio (for example, Patent Document 2) And a deodorant spray composition (see, for example, Patent Document 3) containing a hydrophobic spherical powder and a polyether-modified silicone having a specific property.

  However, with various surfactants as used in conventional attempts, although the redispersibility of the powder can be improved, a sticky feeling after application occurs, resulting in inferior touch and blending of powder. There is a problem that the effect cannot be fully exhibited. Therefore, attempts to increase the redispersibility of conventional powders cannot maximize the effects of antiperspirant deodorant sprays containing powders.

Japanese Patent Laid-Open No. 3-157327 Japanese Patent Laid-Open No. 6-48919 JP 2005-187337 A

  The present invention has been made in view of the prior art, and is excellent in powder redispersibility, can be sprayed uniformly, has no white residue or stickiness on the skin after application, and feels soft to the touch. It is an object to provide an excellent antiperspirant deodorant spray.

That is, the present invention
[1] An antiperspirant deodorant spray comprising a composition containing the following components (A), (B) and (C), and a propellant:
(A) Silicone-coated silica (C) oily component whose surface is coated with 6 to 15 parts by mass of silicone oil based on 100 parts by mass of chlorohydroxyaluminum (B) silica [2] The silicone oil is methylhydrogenpolysiloxane An antiperspirant deodorant spray as described in [1] above,
[3] The antiperspirant deodorant spray according to [1] or [2], wherein the component (C) is a fatty acid ester oil and / or a hydrocarbon oil, and [4] In the composition The antiperspirant deodorant spray according to any one of [1] to [3], wherein the total amount of the component (A) and the component (B) is 20 to 70% by mass.

  Since the antiperspirant deodorant spray of the present invention is excellent in redispersibility of the powder component and can be sprayed uniformly, there is no white residue or stickiness after application, and there is an excellent effect on the touch.

The antiperspirant deodorant spray of the present invention comprises a composition containing the following component (A), component (B) and component (C), and a propellant.
(A) Silicone-coated silica (C) oily component whose surface is coated with 6 to 15 parts by mass of silicone oil with respect to 100 parts by mass of chlorohydroxyaluminum (B) silica

  The component (A) chlorohydroxyaluminum is a powder component blended as a component that exhibits a deodorant effect. The greatest feature of the present invention is that the component (A) is in a uniformly dispersed state in the form of powder in the antiperspirant deodorant spray of the present invention. Since the component (A) is in a uniformly dispersed state, the excellent effect of the present invention that it is excellent in redispersibility and can be sprayed uniformly can be exhibited to the maximum.

  The content of the component (A) is not particularly limited as long as the desired effect is sufficiently imparted, but usually 3% by mass or more is contained in the composition from the viewpoint of the deodorant effect and the uniform dispersion state. Preferably, it is 5 mass% or more more preferably. Moreover, from a viewpoint of safety | security and a usability | use_condition, 48 mass% or less is preferable, More preferably, it is 30 mass% or less. From these viewpoints, the content of the component (A) is preferably 3 to 48% by mass, more preferably 5 to 30% by mass.

  The component (B) silicone-coated silica is a powder component obtained by coating the silica surface with 6 to 15 parts by mass of silicone oil based on 100 parts by mass of silica. In the present invention, it is most preferable to use silicone-coated silica whose surface is coated with 6 to 10 parts by mass of silicone oil with respect to 100 parts by mass of silica. By using the silicone-coated silica subjected to such a surface treatment, the redispersibility when shaking and the touch after application are greatly improved.

  The shape of the silica to be used is usually blended in a deodorant agent and is not particularly limited as long as a desired effect is obtained by applying a coating treatment, but a spherical silica is used. It is preferable.

  The silicone oil used for the coating treatment is not particularly limited as long as the desired effect is sufficiently imparted. For example, chain silicone oils such as methylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane; Examples thereof include modified silicone oils such as alcohol-modified silicone, alkyl-modified silicone, and amino-modified silicone. In the present invention, it is preferable to use straight silicone from the viewpoint of redispersibility and touch, and it is more preferable to use methyl hydrogen polysiloxane.

  The method of coating treatment is not particularly limited as long as it is a known method capable of coating the surface of silica with silicone oil. For example, a predetermined amount of silica and silicone oil in an alcohol solvent or petroleum solvent. After adding and mixing, the solvent is distilled off under reduced pressure, and the resulting powder is dried, pulverized, and heat-treated.

  In addition, a commercial item can also be used for (B) component as it is. Specifically, for example, SI-SB-300LHC (7%) (trade name, manufactured by Miyoshi Kasei Co., Ltd .: 93% by mass of silica, 7% by mass of methyl hydrogen polysiloxane) can be exemplified.

  The content of the component (B) is not particularly limited as long as the desired effect is sufficiently imparted, but usually 5% by mass or more is preferable in the composition from the viewpoint of touch, and more preferably 10% by mass or more. It is. Moreover, from a viewpoint of the white residue to skin, 60 mass% or less is preferable, More preferably, it is 40 mass% or less. From these viewpoints, the content of the component (B) is preferably 5 to 60% by mass, more preferably 10 to 40% by mass.

  Examples of the oil component (C) used include hydrocarbon oil, silicone oil, fatty acid ester oil, and the like. Specifically, hydrocarbon oils such as α-olefin oligomer, light isoparaffin, light liquid isoparaffin, synthetic squalane, vegetable squalane, squalane, petrolatum, ceresin, polybutene, paraffin, liquid paraffin, liquid isoparaffin, microcrystalline wax; methyl Silicone oils such as polysiloxane, methylphenyl polysiloxane, methyl hydrogen polysiloxane; ethyl oleate, isopropyl myristate, isostearyl myristate, isopropyl palmitate, myristyl myristate, cetyl palmitate, octyl palmitate, oleyl oleate Octyldodecyl myristate, octyldodecyl oleate, ethyl isostearate, isopropyl isostearate, 2-ethyl Cetyl xanthate, cetostearyl 2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, glyceryl triisopalmitate, pentaerythritol tetra-2-ethylhexanoate, isocetyl octoate, isostearyl octoate, isocetyl isostearate, isostearic acid Examples thereof include fatty acid ester oils such as octyldodecyl, octyldodecyl dimethyloctanoate, isononyl isononanoate, and isotridecyl isononanoate. These (C) components may be used singly or in appropriate combination of two or more. As a suitable component (C), it is preferable to use a fatty acid ester oil or a hydrocarbon oil from the viewpoint of stickiness and the suppression of white residue on the skin.

  The content of the component (C) is not particularly limited as long as the desired effect is sufficiently imparted, but usually 20% by mass or more is preferable in the composition from the viewpoint of suppressing white residue on the skin. More preferably, it is 30 mass% or more. Moreover, from a viewpoint of stickiness, 80 mass% or less is preferable, More preferably, it is 70 mass% or less. From these viewpoints, the content of the component (C) is preferably 20 to 80% by mass, more preferably 30 to 70% by mass.

  In the composition of the antiperspirant deodorant spray of the present invention, in the range not impairing the effects of the present invention, in addition to the above-described components, components usually used in cosmetics, for example, menthol, menthyl glyceryl ether, camphor and other refreshing agents Bactericides such as isopropylmethylphenol, triclosan and benzalkonium chloride; powders such as organic powders, inorganic powders and pigments; lower alcohols such as ethanol; lipophilic surfactants, preservatives, UV inhibitors, oxidation An inhibitor, a plant extract, a fragrance, and the like can be appropriately blended depending on the purpose.

  In the present invention, the total amount of the component (A) and the component (B) in the composition is 20 to 70% by mass from the viewpoint of excellent redispersibility of the powder component and uniform spraying. Preferably, it is 30 to 60% by mass. In the case of less than 20% by mass, it is not preferable because it is inferior in excellent touch. On the other hand, when the amount is more than 70% by mass, the redispersibility is inferior, and uniform spraying cannot be performed, and a white residue after coating is generated.

  It can be prepared by filling a predetermined container with the antiperspirant deodorant spray of the present invention, the composition containing the components (A) to (C) described above, and a propellant. Although it will not specifically limit as a propellant used if it is used for cosmetics, For example, liquefied petroleum gas etc. can be illustrated.

  The mixing ratio of the composition and the propellant in the antiperspirant deodorant spray (mass ratio, composition / propellant) is not particularly limited as long as the desired effect is sufficiently exhibited. It is preferable to adjust in the range of 3/97 to 30/70 from the viewpoint of splashing the powder component at the time of spraying and the viewpoint of feeling of use, and it is adjusted in the range of 5/95 to 25/75. It is more preferable.

  Furthermore, in the antiperspirant deodorant spray of the present invention, from the viewpoint of further improving the redispersibility and making the desired effect remarkably excellent, the total amount of the component (A) and the component (B) in the composition, The mass content ratio with the amount of the propellant is preferably adjusted in the range of (A + B) total amount: propellant amount = 1: 100 to 9:35.

  The manufacturing method of the antiperspirant deodorant spray may be manufactured by a known method, for example, after filling a composition for uniformly dispersing each component to be blended into an aerosol container and clinching the container with an aerosol valve, A method of filling a propellant with a prescribed amount from the stem and mounting a button suitable for the stem can be exemplified.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited only to these Examples. The blending amount represents “% by mass” unless otherwise specified.

(Sample preparation 1)
After preparing the composition described in Table 1 and Table 2 according to a conventional method, it fills a transparent pressure-resistant container with a propellant with a predetermined ratio, and is used as the antiperspirant deodorant spray of Examples 1-5 and Comparative Examples 1-4. It used for the following evaluation. The results are shown in Table 1 and Table 2, respectively.

(Test Example 1: Evaluation of redispersibility)
The antiperspirant deodorant sprays of each example and each comparative example were allowed to stand for 7 days in a thermostatic bath at 25 ° C. Thereafter, the redispersibility of the powder component when the container was shaken up and down 5 times was visually evaluated according to the following evaluation criteria.

<Evaluation criteria for dispersibility>
○: Uniformly dispersed state Δ: Dispersed state, but slightly non-uniform ×: Not dispersed state, non-uniform

(Sample preparation 2)
The same composition of Sample Preparation 1 was filled in an aerosol container together with a propellant at the same ratio as Sample Preparation 1 and subjected to the following evaluation as an antiperspirant deodorant spray. The results are shown in Table 1 and Table 2, respectively.

(Test Example 2: Evaluation of spray state)
The antiperspirant deodorant sprays of each Example and each Comparative Example were respectively stored in a thermostatic bath at 25 ° C., and the following operation was repeated every other day to perform a spray state test.

(operation)
Each antiperspirant deodorant spray was taken out from each thermostatic bath, immediately shaken well for 15 seconds, and sprayed for 3 seconds. After spraying and discharging, each sample was returned to the incubator, and the same test was conducted after 2 days. This operation was repeated until the content disappeared completely or until the content was not sprayed and discharged due to clogging or the like, and the state was evaluated according to the following criteria.

<Evaluation criteria for spray condition>
○: No abnormality is observed in the spray state within the observation period. Δ: The spray state becomes slightly weaker during the observation period, but spraying is discharged. ×: No spray is generated during the observation period.

(Test Example 3: Evaluation of touch)
20 expert evaluation panels gave each antiperspirant deodorant spray obtained in Sample Preparation 2 10 cm away from the upper arm and sprayed for 1 second. Sensory evaluation was performed according to

<Evaluation criteria for touch>
○: Out of 20 people, 16 or more responded that the applied part was excellent in the dry feeling and the touch was good. Δ: Out of 20 persons, 10 to 15 responded that the applied part was excellent in the smooth feeling and the good touch. × : Out of 20 people, 9 or less responded that the coated part was excellent in smoothness and soft to the touch

(Test Example 4: Evaluation of remaining white)
After the evaluation in Test Example 3, the panel was visually evaluated according to the following evaluation criteria for the presence or absence of white residue at the application site.

<Evaluation criteria for remaining white>
○: Among 20 people, 16 or more responded that there was no white residue in the application area. Δ: 10 to 15 persons answered that there was no white residue in the application area. However, there is no white residue in the coating area

  From the results shown in Tables 1 and 2, the antiperspirant deodorant spray of each example is excellent in redispersibility of the powder component and can be sprayed uniformly compared to those of each comparative example. It can be seen that there is no white residue or sticky feeling after application, and that it has a remarkably excellent effect on the touch.

  On the other hand, in Comparative Examples 1 and 2 in which the component (B) in Examples 1 and 2 of the present invention was replaced with other powders, the re-dispersibility or uniform spray was inferior, so that the touch after application was poor. I understand. Moreover, also in the comparative example 3 which does not satisfy the structure of this invention, since redispersibility is inferior, it turns out that the touch after application | coating is bad. In addition, since the comparative example 4 which does not contain (C) component cannot be made | formed as an agent, it was not able to be used for evaluation.

Claims (4)

An antiperspirant deodorant spray comprising a composition containing the following components (A), (B) and (C), and a propellant.
(A) Silicone-coated silica (C) oily component whose surface is coated with 6 to 15 parts by mass of silicone oil with respect to 100 parts by mass of chlorohydroxyaluminum (B) silica   The antiperspirant deodorant spray according to claim 1, wherein the silicone oil is methyl hydrogen polysiloxane.   The antiperspirant deodorant spray according to claim 1 or 2, wherein the component (C) is a fatty acid ester oil and / or a hydrocarbon oil.   The antiperspirant deodorant spray according to any one of claims 1 to 3, wherein the total amount of the component (A) and the component (B) in the composition is 20 to 70% by mass.