JP2015120140A - Aerosol product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerosol product with a high attachment ratio.SOLUTION: An aerosol product contains at least one of a sunscreen cosmetic, a hair cosmetic, a humectant cosmetic, a deodorant for human body, garment or footwear, a fragrance agent for human body, garment or footwear, and a refrigerant for human body, garment or footwear. The aerosol product comprises: a container body which houses a content; a valve which included a housing provided on a top part of the container body, into which the content filled in the container body flows through an inflow hole, and a stem protrusively provided from the upper part of the housing, and biased upward by a biasing means; and an actuator arranged on the upper part of the stem. The actuator includes at least six nozzle holes which eject the content, and the stem includes stem orifice holes through which the content is guided into the flow path thereof. A ratio of the total opening area of all the nozzle holes and the total opening area of the stem orifice holes is 1:80.

Description

  The present invention relates to aerosol products.

  Conventionally, aerosol products have been used as dosage forms for applying sunscreen cosmetics, deodorants, fragrances, refreshing agents, hair cosmetics, moisturizing cosmetics, etc. for the human body and clothing (for example, (See Patent Document 1).

  In such an aerosol product, the content contained in the container main body is sprayed toward the target, and the content is attached to the target, whereby the effect due to the components of the content is obtained.

JP-A-8-99868

  In such aerosol products, as one of the methods for improving the efficacy by spraying, it is a universal problem to improve the adhesion rate of the sprayed contents to the application target.

  This invention is made | formed in view of such a situation, and provides the aerosol product which improves the adhesion rate of the content to inject.

  The present invention relates to sunscreen cosmetics; hair cosmetics; moisturizing cosmetics; human, clothing or footwear deodorants; human body, clothing or footwear fragrance agents; and human body, clothing or footwear. It is an aerosol product that is at least one selected from the group consisting of a refreshing agent, and a container body that contains the contents, and the contents that are provided on the top of the container body and filled in the container body A valve having a housing that flows in from an inflow hole; a valve that protrudes from the upper portion of the housing and is biased upward by a biasing means; and an actuator that is disposed on the stem. 6 or more for causing the actuator to eject the contents, wherein the actuator ejects the contents by pressing And a stem having a stem orifice hole for introducing the contents into the internal flow path of the stem, and a total opening area of the six or more nozzle holes and a total opening area of the stem orifice hole The ratio (total opening area of nozzle holes / total opening area of stem orifice holes) is 1 to 80.

Preferably, the opening area of the nozzle is 0.05 to 1.0 mm ² , respectively.

  According to the present invention, the actuator has six or more nozzles for ejecting the contents, and the stem has a stem orifice hole for introducing the contents into the internal flow path provided in the stem. The ratio of the total opening area of the nozzle hole to the total opening area of the stem orifice hole (total opening area of the nozzle hole / total opening area of the stem orifice hole) is 1 to 80. Thereby, the droplet of the content to be ejected becomes sufficiently large. Therefore, the adhesion rate of droplets to the human body, clothing and footwear to be applied is improved, and the efficacy of the ejected contents is improved. Therefore, sunscreen cosmetics; hair cosmetics; moisturizing cosmetics; human, clothing or footwear deodorants; human body, clothing or footwear fragrance agents; human body, clothing or footwear refreshing agents It is particularly useful as an aerosol product.

It is sectional drawing for demonstrating the structure of the aerosol product which concerns on this invention. It is sectional drawing of the valve periphery of the aerosol product which concerns on this invention. It is the (a) front view of the actuator of the aerosol product concerning the present invention, and (b) AA sectional view. It is (a) front view and (b) BB sectional drawing of the nozzle of the aerosol product which concerns on this invention. It is BB sectional drawing of the nozzle of 2nd Embodiment of the aerosol product which concerns on this invention. It is the (a) front view, (b) CC sectional view, and (c) perspective view of the nozzle of a 3rd embodiment of the aerosol product concerning the present invention. (A) Front view of nozzle of 4th Embodiment of aerosol product which concerns on this invention, (b) DD sectional drawing, (c) It is a perspective view. It is a perspective view of the actuator of the aerosol product concerning this invention, Comprising: (a) When a nozzle hole is 6 holes, (b) When a nozzle hole is 12 holes, (c) It is a perspective view when a nozzle hole is 28 holes. It is a figure for demonstrating the opening area of the nozzle hole which has a level | step difference in the depth direction, (a) The front view of the nozzle hole, (b) It is EE sectional drawing of the nozzle hole.

  Hereinafter, an aerosol product according to the present invention will be described with reference to the drawings.

FIG. 1 is a cross-sectional view for explaining a configuration of an aerosol product according to the present invention, and FIG. 2 is a cross-sectional view around a valve of the aerosol product according to the present invention.
The aerosol product (100) according to the present invention includes a container body (A), an ejection device (B), and contents contained in the container body (A) as essential components.

[Contents]
The contents are accommodated in the container body (A). The content is composed of a stock solution and a propellant. The undiluted solution and the propellant may exist in a state where a part of the propellant is dissolved in the undiluted solution and is completely mixed and uniform, or the propellant is not dissolved in the undiluted solution and both are non-uniform. May exist in any state.

  FIG. 1 shows an example in which the contents are accommodated in a container. In general, the contents are present in the container main body (A) in a liquid phase (C) and a gas phase (D). The gas phase (D) is composed of a gaseous component of the propellant. Moreover, the liquid phase (C) is comprised only from the undiluted | stock solution, or is comprised from the liquid component and undiluted | stock solution of a propellant. The liquid phase (C) may contain a solid component (powder or the like) in the stock solution.

  Although it does not specifically limit as said propellant, Gas, such as air, nitrogen, a carbon dioxide gas, and nitrous oxide (especially compressed gas is preferable); Liquefied petroleum gas (LPG: Liquid Petroleum Gas), Dimethyl ether (DME: Dimethyl ether) ), Liquefied gases such as isopentane and fluorocarbon. The said propellant may use only 1 type and may use 2 or more types. For example, only liquefied gas, only compressed gas may be used, and liquefied gas and compressed gas may be used together.

  Among these liquefied gases, LPG and DME are preferable from the viewpoints of injection power, environmental conservation, and productivity, and LPG is particularly preferable because the cooling ability and injection ability can be controlled by the ratio of propane and butane. The LPG is not particularly limited, but propane is 0.1 to 50% by mass (more preferably 1 to 20% by mass), and butane is 50 to 99.9% by mass (more preferably 80 to 99% by mass). LPG containing is preferred.

  The vapor pressure at 20 ° C. of the liquefied gas used as the propellant is preferably 0.45 MPa or less (for example, 0.1 to 0.45 MPa), from the viewpoint of further improving the adhesion rate of the contents to the application target. Preferably it is 0.15-0.25 MPa. When the vapor pressure is 0.45 MPa or less, the liquefied gas sprayed from the container is difficult to vaporize before contacting the skin, and the liquefied gas vaporizes after contacting the skin, so that the contents to be applied are applied. This is preferable because the adhesion rate of the product is improved and the effects of the aerosol product (that is, sunscreen effect, moisturizing effect, glossing effect on hair, scenting effect, deodorizing effect, etc.) are further improved.

  When using compressed gas or a mixed gas of compressed gas and liquefied gas as a propellant, the initial product internal pressure is adjusted to 0.6 to 0.8 MPa at 35 ° C. from the viewpoint that it can be used as a final product. It is preferable to adjust to 0.6 to 0.7 MPa. Since the initial product internal pressure is 0.6 MPa or more at 35 ° C., it is preferable because a good injection state can be easily maintained.

  Although content of the undiluted | stock solution in the said content is not specifically limited, 5-99.5 mass% is preferable with respect to 100 mass% of contents. The content of the propellant in the content is preferably 0.5 to 95% by mass with respect to 100% by mass of the content. The contents are composed only of a stock solution and a propellant. That is, the total amount of the stock solution content and the propellant content in the contents is 100% by mass.

  In particular, when only the liquefied gas is used as the propellant, the contents of the stock solution and the propellant in the contents are preferably as follows. 5-60 mass% is preferable, as for content of the undiluted | stock solution in the said content, More preferably, it is 5-40 mass%, More preferably, it is 5-20 mass%. The content of the propellant in the content is preferably 40 to 95% by mass, more preferably 60 to 95% by mass, and still more preferably 80 to 95% by mass with respect to 100% by mass of the content. . By adjusting the stock solution to 60% by mass or less (that is, the propellant to 40% by mass or more), the internal pressure of the aerosol product is increased and the usability is further improved. When the propellant is less than 40% by mass, the internal pressure is low, the spray momentum is weak, and the usability may be reduced. In addition, when the content of the stock solution is less than 5% by mass, the stock solution amount is small, and the amount of the stock solution that adheres to the skin by one injection may be reduced, so that the usability may be lowered. In addition, the amount of undiluted solution in the aerosol product may be small, resulting in a short product life and poor practicality.

  The components contained in the stock solution vary depending on the use of the aerosol product according to the present invention and are not particularly limited. For example, water; ethanol; fragrances; ultraviolet scattering agents such as zinc oxide and titanium oxide; ethylhexyl methoxycinnamate, diethylamino UV absorbers such as hexyl hydroxybenzoyl benzoate, t-butylmethoxydibenzoylmethane, bisethylhexyloxyphenol methoxyphenyl triazine; silicone oils such as cyclopentasiloxane, hydrogen dimethicone, caprylyl methicone, dimethicone; isopropyl myristate, palmitic acid Fatty acid esters such as ethylhexyl and cetyl 2-ethylhexanoate; hydrocarbons such as liquid paraffin and squalane; 1,3-butylene glycol, dipropylene glycol, 1,2-penta Polyhydric alcohols such as diol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol and glycerine; higher alcohols such as cetyl alcohol and stearyl alcohol; polyoxyethylene hydrogenated castor oil, polyoxyethylene Surfactants such as cetyl ether, polyoxyethylene polyoxypropylene decyl tetradecyl ether, stearyltrimethylammonium chloride, polyoxyethylene alkyl (12-14) ether (3EO); phenoxyethanol, octoxyglycerin, methylparaben, etc. Antiseptics; cooling agents such as menthol, menthyl glyceryl ether, menthyl lactate, menthol glycosides, camphor, peppermint oil, peppermint oil, eucalyptus oil; dicariu glycyrrhizinate , Anti-inflammatory agents such as stearyl glycyrrhizinate; plant extract extracts such as peony, button pi, loquat and aloe; thickening polymers such as carboxyvinyl polymer, hydroxyethyl cellulose and xanthan gum; antioxidants such as tocopherol and dibutylhydroxytoluene; arbutin Whitening agents such as ascorbic acid; powders such as silica, talc and nylon powder; antiperspirants such as aluminum chloride, aluminum sulfate, aluminum acetate, chlorohydroxyaluminum and zinc paraphenolsulfonate; benzalkonium chloride and halocarban Bactericides such as chlorhexidine hydrochloride, isopropylmethylphenol, triclosan, lysozyme chloride; deodorants such as zinc oxide, alkyldiethanolamide, hydroxyapatite, tea extract; acrylic resin Lucanolamine solution, polyvinylpyrrolidone, vinylpyrrolidone / N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate solution, N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate Coating agent polymer compounds such as ester copolymer liquids; pH adjusters such as citric acid and sodium citrate; sequestering agents such as edetate, phosphoric acid and sodium polyphosphate.

  Below, the preferable component contained in the undiluted | stock solution in each use of the aerosol product which concerns on this invention is shown. However, it is not particularly limited to the following components.

(When the aerosol product according to the present invention is a sunscreen cosmetic)
Particularly preferred components contained in the stock solution include an ultraviolet scattering agent and an ultraviolet absorber.
Moreover, a silicone oil and fatty acid ester are mentioned as a preferable component contained in stock solution.
Further, it may contain components such as water, ethanol, fragrance, polyhydric alcohol, preservative, cooling agent, anti-inflammatory agent, plant extract, thickening polymer, antioxidant, whitening agent, powder and the like. .

(When the aerosol product according to the present invention is a deodorant)
Particularly preferred components contained in the stock solution include antiperspirants and bactericides.
Moreover, as a preferable component contained in stock solution, a powder, a deodorant, and a fatty acid ester are mentioned.
Furthermore, you may contain components, such as ethanol, a fragrance | flavor, silicone oil, a cooling agent, antioxidant, a higher alcohol, a plant extract.

(When the aerosol product according to the present invention is a fragrance agent)
A particularly preferred component contained in the stock solution is a fragrance.
Moreover, ethanol, water, fatty acid ester, and silicone oil are mentioned as a preferable component contained in a stock solution.
Furthermore, you may contain components, such as antioxidant, a higher alcohol, a polyhydric alcohol, and surfactant.

(When the aerosol product according to the present invention is a refreshing agent)
A particularly preferable component contained in the stock solution includes a cooling sensation agent.
Moreover, ethanol and silicone oil are mentioned as a preferable component contained in stock solution.
Furthermore, you may contain components, such as a fragrance | flavor, fatty acid ester, antioxidant, a higher alcohol, and a plant extract.

(When the aerosol product according to the present invention is a hair cosmetic)
Particularly preferred components contained in the stock solution include a film-forming polymer compound and silicone oil.
Moreover, water, ethanol, and a polyhydric alcohol are mentioned as a preferable component contained in a stock solution.
Furthermore, you may contain components, such as a fragrance | flavor, fatty acid ester, hydrocarbon, and powder.

(When the aerosol product according to the present invention is a moisturizing cosmetic)
Particularly preferred components contained in the stock solution include water and polyhydric alcohols.
Moreover, as a preferable component contained in undiluted | stock solution, a pH adjuster, a sequestering agent, and antiseptic | preservative are mentioned.
Furthermore, you may contain components, such as ethanol, a fragrance | flavor, silicone oil, fatty acid ester, surfactant, and a plant extract.

[Ejection device]
As shown in FIGS. 1 and 2, the ejection device (B) includes an actuator (1), an aerosol container valve (2) (hereinafter sometimes simply referred to as a valve (2)), a mountain cup (4), a dip The valve (2) includes a housing (21), a stem (22), and the like.
Specifically, the housing (21) of the valve (2) is fitted to the boss (41) of the mountain cup (4) provided at the top of the container body (A), and the upper end of the valve (2) The actuator (1) is attached to the. Moreover, the dip tube (3) is extended below from the lower end part of the valve | bulb (2), and the lower part of the dip tube (3) is immersed in the liquid phase (C) of a container main body (A). .

The valve (2) includes a housing (21) provided at the top of the aerosol container body, and a stem (22) protruding from the upper part of the housing (21) and urged upward by the urging means (23). ). The internal space of the housing (21) includes an upper space (211) into which the stem base end (22a) is inserted and a lower space (212) communicating with the internal space of the dip tube (3). The upper space (211) and the lower space (212) communicate with each other. The liquid phase (C) sucked up from the dip tube (3) is sucked into the housing (21) through the lower space (212). That is, the housing (2) is configured such that the content filled in the container body (A) flows from the inflow hole. The stem (22) has at least a stem orifice hole (221) for introducing the contents into the internal flow path of the stem (22).
A coil spring or the like can be used as the urging means (23).

The valve (2) will be described in more detail by describing the operation of ejecting the contents in the aerosol container.
In FIG. 2, the left half shows a state when not in use (when not ejected), and the right half shows a state when in use (when ejected).
When not in use, the stem (22) is urged upward by the urging means (23) (see the left half of FIG. 2). Accordingly, the lower portion of the stem (22) and the upper portion of the housing (21) are in close contact with each other via the seal rubber (24), that is, the valve (2) is closed.
When the contents are ejected, the valve (2) is opened by lowering the stem (22) against the upward biasing force of the biasing means (23) (the right half of FIG. 2). reference). Specifically, the stem (22) is pushed down by pressing the actuator (1) provided on the stem (22). When the stem (22) is pushed down, the seal rubber (24) is deflected downward and the stem orifice hole (221) is opened. Then, the interface of the liquid phase (C) filled in the container main body (A) is pushed downward by the gas phase (D), and the contents are sucked up from the dip tube (3). The contents sucked up from the dip tube (3) pass through the lower space (212), the upper space (211), the stem orifice hole (221), and the internal flow path (222) of the stem (22) in this order, It is ejected from the nozzle hole (111) of 1).

FIG. 3: is (a) front view and (b) AA sectional drawing of an example of the actuator (1) of the aerosol product which concerns on this invention.
The actuator (1) is arranged on the top of the stem (22). The actuator (1) includes a nozzle (11) for ejecting the contents to the outside, and a stem joint portion (12) for joining the stem (22). The nozzle (11) includes a nozzle internal flow path (112) and a nozzle hole (111), and the contents that have passed through the internal flow path (222) of the stem (22) from below are flow paths (13), It passes through the nozzle internal flow path (112) in order and is ejected from the nozzle (111).
In the present invention, the actuator (1) does not necessarily have to be joined so as to always contact the stem (22). The actuator (1) is only required to be attached so that the stem (22) can be pushed down when pressed. For example, the actuator (1) is not in contact with the stem (22) when not pressed. You may be comprised so that a stem may be pushed down in contact with (22).

FIG. 4: is (a) front view and (b) BB sectional drawing of an example of the nozzle of the aerosol product which concerns on this invention.
In the present invention, the nozzle (11) has six or more nozzle holes (111). The number of nozzle holes in the present invention is 6 or more, preferably 6 to 28, more preferably 12 to 20, from the viewpoint of spraying the contents uniformly over a wide range. When the number of nozzle holes is 5 or less, it is difficult to spray uniformly over a wide range. When increasing the injection amount to spray over a wide range with a small number of nozzles, the droplet density at the center in the injection direction is locally increased, the content is more scattered, the injection sound is increased, etc. Problems arise. 4 shows the case where the nozzle hole (111) has six holes. For example, as shown in (b) and (c) of FIG. 8, there may be 12 holes or 28 holes. It may be a number.

The total opening area of the nozzle hole (111) is defined by the ratio with the total opening area of the stem orifice hole (221). In the present invention, the ratio of the total opening area of the six or more nozzle holes (111) to the total opening area of the stem orifice holes (221) (total opening area of the nozzle holes / total opening area of the stem orifice holes) is 1 to 80. , Preferably 3 to 45, more preferably 5 to 30. When the ratio (total opening area of the nozzle hole / total opening area of the stem orifice hole) is 1 or more, the droplets of the content to be ejected are sufficiently large, so that the adhesion rate of the content to the application target is improved. Therefore, the usability is high and the contents can be effectively exhibited. Furthermore, since the content that does not adhere to the application target and scatters during spraying is reduced, adverse effects due to such scatter can be suppressed. When the ratio (total opening area of the nozzle hole / total opening area of the stem orifice hole) is less than 1, the sprayed mist is too fine, which is not preferable. Moreover, since the momentum of injection will become weak when exceeding 80, it is not preferable.
There may be one stem orifice hole (221) or a plurality of stem orifice holes (221).

In the present specification, “opening area” means the narrowest opening area.
FIG. 9 is a view for explaining the “opening area” of the nozzle hole (111) having a step in the depth direction, (a) is a front view of the nozzle hole (111), and (b) is the nozzle hole. It is EE sectional drawing of (111). For example, in the nozzle hole (111) shown in FIG. 9, the portion with the smallest radius [F in FIG. 9 (b)] is the narrowest part of the nozzle hole, and the region (G) indicated by the dot in FIG. 9 (a). Is the “opening area”. Further, the “total opening area of the nozzle hole” means the total of the opening areas of all the nozzle holes. Furthermore, the “total opening area of the stem orifice holes” means the sum of the opening areas of all the stem orifice holes.

The total opening area of the nozzle hole (111) is not particularly limited, but is preferably 0.3 to 15 mm ² , more preferably from the viewpoint of spraying the contents over a wide range while maintaining sufficient injection momentum. 1.5 to 10 mm ² . When it is less than 0.3 mm ² , the injection amount may decrease. When it exceeds 15 mm ² , the momentum of the jet becomes weak and it may be difficult to reach the application target.
The opening area of each nozzle hole (111) (that is, the opening area per nozzle hole) is not particularly limited. From the viewpoint of spraying large droplets uniformly from each nozzle hole in a wide range and suppressing scattering, respectively. is preferably 0.05 to 1.0 mm ^2, more preferably 0.1 to 0.6 mm ^2. If it is less than 0.05 mm ² , the droplets become too small and the contents are scattered, so that the adhesion rate is lowered and the effect of the stock solution may not be fully exhibited. When it exceeds 1.0 mm ² , a large amount of contents are ejected from the nozzle hole, which may hinder ejection from other holes.

As shown in FIG. 4, the nozzle (11) can include a boss (113) that projects into the nozzle internal flow path (112) in the region inside the nozzle hole (111). The presence of the boss (113) is preferable because the contents can be easily guided to each nozzle.
However, as shown in FIG. 5 which is a side sectional view of the nozzle of the second embodiment of the aerosol product according to the present invention, the boss (113) may be omitted.

FIG. 6: is the (a) front view of the nozzle of 3rd Embodiment of the aerosol product which concerns on this invention, (b) CC sectional drawing, (c) It is a perspective view.
The content that has passed through the stem (22) passes through the nozzle internal flow path (112), and then passes through the nozzle internal flow path (112) and the guide portion (116) communicating with each of the injection holes (111). (111) is ejected.
The interval between the nozzle holes (111) can be determined as appropriate.

FIG. 7: is the (a) front view of the nozzle of 4th Embodiment of the aerosol product which concerns on this invention, (b) DD sectional drawing, (c) It is a perspective view.
The nozzle (11) has a first convex portion (114) and a second convex portion (115), and the first convex portion (114) is formed higher than the second convex portion (115). . The vicinity of the center of the nozzle hole (111) is formed on the circumference of the first convex part (114) and the second convex part (115). As a result, a part of the contents that have passed through the nozzle internal flow path (112) and the guide part (116) collide with the inner wall of the nozzle (111) and are ejected radially outward, so that the contents are more widely spread. Can be ejected.

Reference is again made to FIG.
The housing (21) in FIG. 2 includes a gas phase intake opening (VT) (213) on the side surface and a liquid phase intake opening (UT) (214) on the bottom surface. The gas phase (D) of the contents is introduced into the upper space (211) from the gas phase intake opening (VT) (213), and the liquid phase (C) of the contents from the liquid phase intake opening (UT) (214). Is introduced into the lower space (212). The introduced gas phase (D) and liquid phase (C) are introduced into the internal flow path (222) from the stem orifice hole (221) provided on the side surface of the stem (22) and sucked up to the actuator (1). It is done. In the present invention, the housing may not be provided with a gas phase intake opening (VT).
The ratio (VT / UT) of the total opening area of the gas phase intake opening (VT) (213) and the total opening area of the liquid phase intake opening (UT) (214) is 0.5 or less (that is, 0 to 0). .5), more preferably 0 to 0.3. By setting it as this range, the ratio between the gas phase and the liquid phase in the sprayed mist can be further optimized. When the ratio (VT / UT) exceeds 0.5, the gas ratio of the sprayed mist is too high, so the adhesion rate of the undiluted solution to the application target decreases, and the usability, efficacy, etc. may decrease.

The total opening area of the liquid acquisition aperture (UT) (214) is not particularly limited, but is preferably 0.5 mm ² or more, more preferably 0.75~4.0mm ^2. By setting the total opening area of the liquid phase intake opening (UT) (214) within this range, a sufficient amount of the liquid phase can be ejected, and the effect of the contents is further improved, which is preferable.

[Physical properties]
Although the injection quantity of the aerosol product which concerns on this invention is not specifically limited, 0.3-3.0 g / sec is preferable, More preferably, it is 0.5-2.0 g / sec.

[Usage]
The aerosol product according to the present invention includes a sunscreen cosmetic; a hair cosmetic; a moisturizing lotion; a deodorant for human body, clothing or footwear; a fragrance agent for human body, clothing or footwear; and a human body and clothing. Or at least one selected from the group consisting of a refreshing agent for footwear. That is, the aerosol product according to the present invention is an aerosol product used for these applications. The aerosol product according to the present invention may have only one of the above effects, or may have a plurality of the above effects. In this specification, “cosmetics” is not limited to “cosmetics” in the Pharmaceutical Affairs Law, and may be any of cosmetics, quasi-drugs, pharmaceuticals, and miscellaneous goods, for example.

The sunscreen cosmetic is a cosmetic that suppresses ultraviolet rays and suppresses the sun to be applied.
The hair cosmetics are not particularly limited, and examples thereof include hair styling agents, hair restorers, hair bleaching agents, hair dyes, bedclothes cosmetics, and hair polish cosmetics.
An example of the moisturizing cosmetic is moisturizing lotion.
The deodorant is a product for deodorizing human bodies, clothes and footwear. Examples include deodorant cosmetics for the human body, wear deodorants, and deodorants for shoes.
The fragrance agent is a product that gives a scent to the human body, clothing and footwear. Examples include perfumes, hair colons, body colons, clothing fragrances, and the like.
The refreshing agent is a product that gives a refreshing feeling when applied to a human body, or a product that gives a refreshing feeling to a person who wears it by applying it to clothing or footwear.

  The aerosol product according to the present invention, which is a deodorant agent for human body, a fragrance agent for human body, and a refreshing agent for human body, is used by being sprayed on the human body. Although the application site | part of a human body is not specifically limited, For example, an arm part, a foot | leg part, a chest part, a back part, a head part, a side part, a leg part, an abdominal part etc. are mentioned. The aerosol product according to the present invention, which is a deodorant for human body, a fragrance for human body, and a refreshing agent for human body, may be used on clothing and the like.

  Examples of the clothing include, but are not limited to, jackets, shirts, coats, jeans, skirts, dresses, dresses, hats, scarves, mufflers, ties, gloves, masks, socks, tights, and underwear. Moreover, as said footwear, although it does not specifically limit, shoes, boots, sandals, etc. are mentioned.

  The aerosol product according to the present invention is used, for example, by pushing the actuator with the nozzle pointed in the direction of the site where the stock solution is to be adhered.

  Since the actuator of the aerosol product according to the present invention has six or more nozzles, the above contents can be sprayed (sprayed) uniformly over a wide range. Moreover, the momentum of injection does not become too strong, and the scattering of the contents can be suppressed. Further, the ratio of the total opening area of the six or more nozzle holes and the total opening area of the stem orifice holes (total opening area of the nozzle holes / total opening area of the stem orifice holes) is 1 to 80. A relatively large droplet can be ejected. For this reason, since the liquefied gas is vaporized after reaching the application target, even if it is ejected over a wide range, an appropriate effect can be exhibited. As a result, the aerosol product according to the present invention can adhere the contents over a wide range and uniformly, and the uniform application property of the contents is improved, so that the usability is improved and the effect of the contents is effectively functioned. Can be made. Furthermore, since the scattering of contents can be suppressed, adverse effects caused by the scattering of contents can be prevented. In addition, as an adverse effect resulting from the above-mentioned content scattering, for example, unnecessary diffusion of fragrance due to the scattering of fragrance agent; powder scattering in the content due to the scattering of deodorant agent, Mud / cough caused by inhalation; Mud / cough caused by a refreshing ingredient (such as menthol derivative) caused by the presence of a refreshing agent; dirt, stickiness, floor slipping, etc. caused by the scattering of hair cosmetics.

(Test 1: Number of nozzle holes, and ratio between the total opening area of the nozzle holes and the total opening area of the stem orifice holes)
The aerosol container according to the present invention having the number of nozzle holes, the nozzle hole diameter, the nozzle hole total opening area, the stem orifice hole diameter, and the stem orifice hole total opening area described in Tables 1 and 2 is filled with 60 g of the contents to produce an aerosol product. did.
As the contents, a stock solution having the following composition and a propellant using liquefied petroleum gas (LPG) were mixed so that the stock solution: LPG (mass ratio) was 10:90.
<Composition of stock solution>
Ethanol 100% by mass

And the ejection state when the contents were ejected was evaluated according to the following evaluation criteria, and shown in Tables 1 and 2. “◎”, “◯” and “×” in the table are the results of observing the ejection state (moment, fog state) when each aerosol product is ejected and evaluating it based on the following criteria. The “ratio” shown together with the result of the test is a value of (total opening area of nozzle holes / total opening area of stem orifice holes).
<Evaluation criteria>
◎: Excellent ejection state ○: Usable ejection state ×: Poor ejection state

  From the results of Tables 1 and 2, when the number of nozzles is 6 or more, the ratio shown as (total opening area of the nozzle holes / total opening area of the stem orifice holes) is 1 to 80, and a good ejection state is obtained. It was. When the ratio is less than 1, the contents are scattered, resulting in a poor eruption state, which may easily cause coughing. On the other hand, when the ratio exceeded 80, the injection was weak and the injection state was poor.

Examples 1-17, Comparative Examples 1-4
Fill the contents (mass: 100 g) into an aerosol container (capacity: 294 mL) having the number of nozzle holes, nozzle diameter, nozzle area, stem orifice hole diameter, stem orifice hole diameter, stem orifice hole area described in Table 3 to Table 5. An aerosol product was manufactured. In addition, the housing in the said aerosol container was not equipped with the gaseous-phase intake opening (VT), and the opening area of the liquid phase intake opening (UT) (one number) was 3.80 mm < ² >.
As the contents, those composed of the stock solution and the propellant shown in Tables 3 to 5 were used.
The stock solutions A to F shown in Tables 3 to 5 are as follows.
<Undiluted solution A (sunscreen cosmetic)>
Zinc oxide 20% by mass
Cyclopentasiloxane 36% by mass
Ethylhexyl methoxycinnamate 6.5% by mass
1,3-butylene glycol 5% by mass
Ethylhexyl palmitate 5% by mass
Purified water 27.5% by mass
<Undiluted solution B (deodorant agent)>
Isopropyl myristate 59.4% by mass
l-Menthol 0.5% by mass
Isopropyl methylphenol 0.1% by mass
Chlorhydroxyaluminum 10% by mass
Silica 25% by mass
Octenyl succinic acid corn starch ester aluminum
5% by mass
<Undiluted solution C (fragrance agent)>
Ethanol 87 mass%
Fragrance 3% by mass
Isononyl isononanoate 5% by mass
Diphenylsiloxyphenyl trimethicone 5% by mass
<Undiluted solution D (cooling agent)>
Ethanol 98% by mass
L-menthol 1.0% by mass
Menthyl glyceryl ether 0.5% by mass
Fragrance 0.5% by mass
<Undiluted solution E (hair cosmetic)>
Ethanol 83% by mass
Dimethicone 12% by mass
Diphenylsiloxyphenyl trimethicone 5% by mass
<Undiluted solution F (moisturizing cosmetic)>
88.9% by mass of water
Glycerin 5% by mass
BG 3% by mass
Diphenyl dimethicone 3% by mass
Methylparaben 0.1% by mass
Moreover, LPG, DME, nitrogen gas, or carbon dioxide gas was used for the propellant. In addition, the following were used for LPG and DME, respectively.
LPG: 99% by mass of butane, 1% by mass of propane, manufactured by Koike Chemical Co., Ltd., vapor pressure at 20 ° C. of 0.15 MPa
DME: Koike Chemical Co., Ltd., vapor pressure at 20 ° C. 0.41 MPa

(Evaluation)
The following evaluation was performed about each aerosol product obtained by the Example and the comparative example. The evaluation results are shown in Tables 3 to 5.

(1) Average particle diameter Each aerosol product was ejected from a position 15 cm away from the measuring device, and the average of the ejected droplets was measured using a particle size distribution measuring device (product name “Spraytec” manufactured by Malvern Instruments Ltd.). The particle size was measured. The average particle size is a calculated value of the theoretical sphere diameter obtained from the equivalent surface area.

(2) Adhesion rate A wiping cloth (manufactured by Nippon Paper Crecia Co., Ltd., trade name “Kim Towel (Part No .: 61000)”), which is 380 mm long and 330 mm wide, is attached to a plate standing vertically with respect to the ground, and 15 cm away Each aerosol product was sprayed for 5 seconds. The amount of mass change before and after the injection of each aerosol product was defined as “injection amount (g)”, and the amount of mass change of the wiping cloth was defined as “attachment amount (g)” to the wiping cloth. From the above “injection amount”, “adhesion amount”, and “stock solution ratio (mass%)” in the contents of each aerosol product, the adhesion rate (mass%) was calculated using the following calculation formula.
Adhesion rate (mass%) = adhesion amount (g) / (injection amount (g) × stock solution ratio (mass%) / 100) × 100

(3) Ejection state The ejection state (moment, fog state) when each aerosol product was ejected was observed and evaluated based on the following criteria.
<Evaluation criteria>
◎: Excellent ejection state ○: Usable ejection state ×: Poor ejection state

  From the above results, the aerosol products (Examples 1 to 17) of the present invention had 6 or more nozzle holes, and the ratio of the total opening area of the nozzle holes to the total opening area of the stem orifice holes (total opening area of the nozzle holes / stem When the total opening area of the orifice holes was set to 1 to 80, a good adhesion rate could be secured. Specifically, the aerosol products according to Examples 1 to 17 manufactured under the above conditions achieved an adhesion rate of 85% or more in all Examples, and 90% or more in most Examples. Moreover, the aerosol products according to Examples 1 to 17 were all in a good ejection state.

  In contrast to Examples 1 to 17, Comparative Examples 1 to 4 all showed a low adhesion rate. Specifically, Comparative Example 1 in which the ratio is 0.50 which is 1 or less and the number of nozzles is less than 6, the adhesion rate was as low as 67.8%. Further, Comparative Example 2 in which the number of nozzle holes is 3 and less than 6, showed an adhesion rate as low as 69.5. Moreover, the comparative example 3 whose said ratio is 0.75 of 1 or less showed the comparatively low value with an adhesion rate of 75.6%, and the ejection state was unsatisfactory. Moreover, the comparative example 4 of 85.33 whose said ratio exceeds 80 showed the adhesion rate as low as 46.6%, and the ejection state was unsatisfactory.

  Below, the formulation example of the aerosol product which concerns on this invention is shown. In addition, as a container main body and an ejection apparatus, what was illustrated to said Example etc. can be used.

Formulation Example 1 (Sunscreen cosmetics)
<Undiluted solution>
30% by mass of cyclopentasiloxane
Zinc oxide 15% by mass
Ethylhexyl methoxycinnamate 7% by mass
t-Butylmethoxydibenzoylmethane 2% by mass
Ethylhexyl palmitate 5% by mass
Silica 5% by mass
20% by mass of purified water
Ethanol 15% by mass
Phenoxyethanol 0.5% by mass
Fragrance 0.5% by mass
(Propellant)
LPG (propane 1% by mass / butane 99% by mass, vapor pressure at 20 ° C. 0.15 MPa)
100% by mass
Stock solution / propellant (mass ratio) = 20/80

Formulation Example 2 (Deodorant for human body)
(Stock solution)
Isopropyl myristate 58.9% by mass
Diphenylsiloxyphenyl trimethicone 0.5% by mass
L-menthol 0.5% by mass
Isopropyl methylphenol 0.1% by mass
Chlorhydroxyaluminum 10% by mass
Silica 30% by mass
(Propellant)
LPG (propane 1% by mass / butane 99% by mass, vapor pressure at 20 ° C. 0.15 MPa)
100% by mass
Stock solution / propellant (mass ratio) = 7.5 / 92.5

Formulation Example 3 (Human Fragrance)
(Stock solution)
Ethanol 87 mass%
Fragrance 3% by mass
Diphenylsiloxyphenyl trimethicone 5% by mass
Isononyl isononanoate 5% by mass
(Propellant)
LPG (propane 1% by mass / butane 99% by mass, vapor pressure at 20 ° C. 0.15 MPa)
100% by mass
Stock solution / propellant (mass ratio) = 35/65

Formulation Example 4 (Clothing Fragrance Agent)
(Stock solution)
Purified water 93.4% by mass
Fragrance 2.5% by mass
Stearyltrimethylammonium chloride 0.5% by mass
Methylparaben 0.1% by mass
Diphenylsiloxyphenyl trimethicone 3.5% by mass
(Propellant)
Nitrogen gas 100% by mass
Stock solution / propellant (mass ratio) = 99.3 / 0.7

Formulation Example 5 (Human freshener)
(Stock solution)
Ethanol 93% by mass
L-menthol 1% by mass
Peppermint oil 0.5 mass%
Peppermint oil 0.5% by mass
Diphenylsiloxyphenyl trimethicone 5% by mass
(Propellant)
LPG (propane 1% by mass / butane 99% by mass, vapor pressure at 20 ° C. 0.15 MPa)
100% by mass
Stock solution / propellant (mass ratio) = 45/55

Formulation Example 6 (Glossing Spray for Hair)
(Stock solution)
Ethanol 83% by mass
Dimethicone 10% by mass
Diphenylsiloxyphenyl trimethicone 7% by mass
(Propellant)
LPG (propane 20% by mass / butane 80% by mass, vapor pressure at 20 ° C. 0.29 MPa) 100% by mass
Stock solution / propellant (mass ratio) = 60/40

Formulation Example 7 (Moisturizing lotion)
(Stock solution)
Purified water 91.25% by mass
Glycerin 2% by mass
1,3-butylene glycol 6% by mass
Phenoxyethanol 0.5% by mass
Methylparaben 0.1% by mass
Sodium citrate 0.1% by mass
Citric acid 0.05% by mass
(Propellant)
Nitrogen gas 100% by mass
Stock solution / propellant (mass ratio) = 99.4 / 0.6

  INDUSTRIAL APPLICATION This invention is utilized suitably for the aerosol product of the type which ejects the content in the shape of a mist.

DESCRIPTION OF SYMBOLS 1 Actuator 11 Nozzle 111 Injection nozzle 112 Nozzle internal flow path 113 Boss 114 1st convex part 115 2nd convex part 116 Guide part 12 Stem junction part 2 Valve | bulb 21 Housing 211 Upper space 212 Lower space 213 Gas-phase intake opening (VT)
214 Liquid phase intake opening (UT)
22 Stem 221 Stem orifice hole 222 Internal flow path 23 Energizing means 24 Seal rubber 3 Dip tube 4 Mountain cup 41 Boss part 100 Aerosol product A Container body B Jetting device C Liquid phase D Gas phase

Claims (2)

It consists of sunscreen cosmetics, hair cosmetics, moisturizing cosmetics, deodorant for human body, clothing or footwear, fragrance agent for human body, clothing or footwear, and refresher for human body, clothing or footwear. At least one selected from the group,
A container main body for storing the contents; a housing provided at the top of the container main body and filled with the contents filled in the container main body; and provided to protrude from the upper portion of the housing and biasing means An aerosol product that includes a valve having a stem biased upward by an actuator and an actuator disposed on an upper portion of the stem, and ejects the contents by pressing the actuator,
The actuator has 6 or more nozzles for ejecting the contents;
The stem has a stem orifice hole for introducing the contents into the internal flow path of the stem;
An aerosol product, wherein a ratio of a total opening area of the six or more nozzle holes and a total opening area of the stem orifice holes (total opening area of the nozzle holes / total opening area of the stem orifice holes) is 1 to 80. The aerosol product according to claim 1, wherein each of the nozzle holes has an opening area of 0.05 to 1.0 mm ² .

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