JP2013241371A - Aerosol composition and method for using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerosol composition which can simply use and a sufficient blood circulation acceleration effect when an aqueous stock solution such as a carbon dioxide containing cosmetics is used for a skin, especially a face, and method for use it.SOLUTION: An aerosol composition which encloses an aqueous stock solution including water and a polysaccharide polymer and whose viscosity is 5-1,000 mPa s and carbon dioxide in an aerosol container, and is jetted under a bubble 1 from the aerosol container. The bubble 1 is jetted to a liquid adsorption member 2 having a space larger than the diameter, and invades into the space without that at least a part of the bubble 1 is not broken and is invaded into the space, and a part or the whole thereof are disappeared, is disappeared into an adsorption member 2. When the adsorption member 2 is stuck onto the objectives 3, carbon dioxide included in the bubble which is disappeared is brought into successively contact with the objectives 3, and the blood circulation acceleration effect is continued.

Description

  The present invention relates to an aerosol composition containing carbon dioxide, and more particularly to an aerosol composition used for enhancing the blood circulation promoting effect of carbon dioxide, and a method for using the same.

  Conventionally, many proposals using the blood circulation promoting action of carbon dioxide have been made. As one of them, the hair-restoring agent of Patent Document 1 has been proposed, but carbon dioxide gas does not remain on the skin during use, so that a sufficient blood circulation promoting effect cannot be obtained. Also, as in Patent Documents 2 and 3, the liquid is made viscous to hold the carbon dioxide gas, and as in Patent Documents 4 and 5, the carbon dioxide gas is confined in the foam by jetting in a foam shape. Although it has been proposed, when it is used on the skin, especially on the face, it will sag as it is, so it has to be applied and carbon dioxide cannot be retained. Although the proposal made into a sheet form and a bag form is made like patent documents 6 and 7, all have to inject a carbon dioxide content liquid into a container, and there is a possibility that a bag may burst or the bag may burst. There was a problem in safety.

JP-B 63-47684 JP-A-3-161415 JP-A-11-228334 Patent 3929936 Patent 4231577 JP 2004-238333 A Patent No. 4629983

  The problem to be solved by the present invention is an aerosol composition that can be used easily when an aqueous stock solution such as carbon dioxide-containing cosmetics is used on the skin, particularly the face, and has a sufficient blood circulation promoting effect. It is to provide a method of using the same. In the present invention, the blood circulation promoting effect refers to a blood circulation promoting effect such that the flushing of skin can be visually confirmed when brought into contact with the skin.

  As a result of earnest research, the inventor of the present application can use the aerosol composition of the present invention by the method of the present invention to allow carbon dioxide gas to continuously act on the skin for a certain period of time, thereby enhancing the blood circulation promoting effect. It came to a conclusion that it can be used at home easily and safely.

  It has been conventionally proposed to enclose carbon dioxide gas in a foam and spray it from an aerosol container. However, in the conventional method, carbon dioxide gas cannot be continuously applied to the skin.

  Therefore, the present inventor has developed a method and an aerosol composition capable of causing carbon dioxide gas to continuously act on the skin by a new mechanism. This mechanism will be described with reference to FIG. 1. A bubble 1 containing carbon dioxide gas is once jetted onto a liquid absorbing member 2 such as a nonwoven fabric, a woven fabric, or paper (FIG. 1A). A part or all of the foam 1 is defoamed on the surface of the liquid absorbing member 2. If all the bubbles are not immediately removed on the surface of the liquid absorbing member, a part of the bubbles not defoamed enters the liquid absorbing member 2. The liquid absorbing member 2 holding the foam 1 on the surface and inside is applied to the skin 3 (FIG. 1B). When the bubbles 1 are observed one by one, there are various types of bubbles that are sequentially defoamed on the surface of the liquid-absorbing member 2, and those that break into the liquid-absorbing member 2 and gradually break and disappear ( FIG. 1C). Carbon dioxide gas is sequentially released from the bubbles 1 that are torn with this time difference, and acts on the skin. Further, even when all the bubbles are immediately defoamed on the surface of the liquid absorbing member, the carbon dioxide gas released by the defoaming is efficiently absorbed into the liquid absorbing member 2. This carbon dioxide gas includes not only those encapsulated as gas in bubbles but also those dissolved in an aqueous stock solution. What is necessary is just to set and implement the carbon dioxide density | concentration of this bubble on condition that the skin flushing effect can be acquired. Specifically, although there are individual differences, the concentration is preferably 1000 ppm or more.

  Thus, an aqueous stock solution having a viscosity of 5 to 1000 mPa · s containing water and a polysaccharide-based polymer, and carbon dioxide gas are sealed in an aerosol container and injected from the aerosol container in the form of bubbles, The aerosol composition is jetted onto a liquid-absorbing member, and a part or all of the foam is absorbed by the liquid-absorbing member while defoaming, and when the liquid-absorbing member is attached to an object The present invention provides an aerosol composition for promoting blood circulation, wherein the carbon dioxide gas contained in the defoamed foam comes into contact with the object, and a method for using the aerosol composition. When this aerosol composition is applied from an aerosol container to a liquid-absorbing member such as a nonwoven fabric or fiber, part or all of the aerosol composition is absorbed by the liquid-absorbing member while defoaming. And this liquid-absorbing member is affixed and used for a human body, and the blood circulation promotion effect to the extent that skin flushing is produced in the site | part affixed by this is recognized.

  As described above, the aerosol composition of the present invention is ejected in the form of foam from the aerosol container, but if the ejected foam is too hard, it is not well absorbed by the liquid absorbent member such as a nonwoven fabric or fiber. Therefore, it is desirable that the foam when 3 g is jetted from the position of 3 cm height on the hard glass surface should be defoamed after 120 seconds to 1/2 or 1 cm or less of the foam height. On the other hand, if the foam is too soft, it is difficult for the foam to become substantially foamed at the time of injection, or even if it becomes a foam, the foam disappears before reaching the liquid-absorbing member. It is difficult to obtain a blood circulation promoting effect. In addition, in order to allow at least a part of the bubbles to enter the liquid absorbing member 2 and gradually break and disappear, as described above, from the position of a height of 3 cm on the hard glass surface. In the state where 3 g of the aerosol composition is injected, it is desirable that at least part of the foam remains without being defoamed for at least 10 seconds after the injection. However, as described above, even if the foam is removed at the moment when it is sprayed on the hard glass surface, it is compared with the one that does not spray in the form of foam or the foam that disappears before reaching the liquid absorbing member. Thus, the effect of allowing more carbon dioxide to enter the liquid absorbing member can be expected.

The present invention provides an aerosol composition that can be easily used when a carbon dioxide-containing cosmetic is used on the skin, particularly the face, and has a sufficient blood circulation promoting effect, and a method for using the aerosol composition. is there. In particular, an aerosol composition in which an aqueous stock solution having a viscosity of 5 to 1000 mPa · s containing water and a polysaccharide polymer and carbon dioxide gas is sealed in an aerosol container is ejected from the aerosol container in a foam state. The jetted foam is absorbed by the liquid absorbing member while part or all of the foam is removed, and when the liquid absorbing member is attached to an object, the foam is included in the defoamed foam. Carbon dioxide comes into contact with the object. Particularly preferably, the injected foam is injected into a liquid absorbing member having a space larger than the diameter thereof, so that at least a part of the foam enters the space without being broken, and a part or the whole amount thereof. Is absorbed by the liquid absorbing member while defoaming. And when a liquid absorption member is affixed on target objects, such as a human skin, the carbon dioxide gas contained in the defoamed foam contacts a target continuously, and the blood circulation promotion effect is maintained.
In the present invention, the blood circulation promoting effect refers to a blood circulation promoting effect such that the flushing of skin can be visually confirmed when brought into contact with the skin.

It is explanatory drawing which shows an example of the mechanism of this invention.

(Main component)
The aerosol composition of the present invention includes an aqueous stock solution containing water, a polysaccharide-based polymer as essential components, and carbon dioxide gas, which are enclosed in an aerosol pressure-resistant container. A viscosity of this aqueous stock solution of 5 to 1000 mPa · s is appropriate.

(water)
The water used for this invention will not be restrict | limited especially if it is the water normally used in this field | area, For example, purified water, ion-exchange water, distilled water etc. are mentioned.

(Polysaccharide polymer)
Specific examples of polysaccharide polymers used in the present invention include cellulose polymers such as microcrystalline cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl cellulose, and cationized cellulose, xanthan gum, hydroxy Microbial polymers such as propylxanthan gum, pullulan, cyclodextrin, dextran, curdlan, succinoglucan; starch polymers such as starch, soluble starch, carboxymethyl starch, methyl starch, starch phosphate; guar gum, cationization Guar gum polymers such as guar gum, hydroxypropylated guar gum; carrageenan, agar, quince seed gum, mannan, dextst Emissions, dextrin fatty acid esters, locust bean gum, gum arabic, tragacanth, pectin, chitin, and the like. Of these, cellulose polymers and microbial polymers are preferred from the viewpoint of stability. In addition, the polysaccharide polymers can be used alone or in combination of two or more, and these polysaccharide polymers act as water-soluble thickeners and form bubbles effective in achieving the object of the present invention. .
The blending amount of the polysaccharide polymer and water varies depending on the type of polysaccharide polymer, but is preferably about 0.01 to 1.0% by weight. If it is less than 0.01%, viscosity cannot be obtained, and if it exceeds 1.0%, the viscosity becomes too high and exceeds 1000 mPa · s.

  As a water-soluble thickener, a (meth) acrylic acid-based polymer is known in addition to a polysaccharide polymer, but it has the following problems and is not suitable. For example, carboxyvinyl polymers are acidic themselves and become cross-linked and highly viscous by neutralization with an alkaline agent. On the other hand, carbon dioxide gas is slightly acidic when dissolved in water. Therefore, the liquid neutralized and thickened only with high-concentration carbon dioxide gas and carboxyvinyl polymer decreases in viscosity and precipitates. As described above, when the viscosity is lowered, the retention of the foam is deteriorated, and the precipitation causes clogging of the aerosol product. Therefore, the use in the aerosol is difficult, and the object of the present invention cannot be achieved. On the other hand, the polysaccharide polymer does not have such a problem, and can be effectively ejected from the aerosol container to generate effective bubbles. However, it is possible to add a thickener other than the polysaccharide polymer such as a carboxyvinyl polymer in combination with the polysaccharide polymer within a range that does not affect the above-described adverse effects.

(viscosity)
The viscosity of the aqueous stock solution is preferably 5 to 1000 mPa · s, more preferably 20 to 300 mPa · s, and the above water and polysaccharide polymer are blended so that this viscosity can be obtained. When the viscosity exceeds 1000 mPa · s, it is difficult to impregnate the nonwoven fabric or fiber, and the nonwoven fabric or fiber is not retained on the skin. If the viscosity is less than 5 mPa · s, carbon dioxide gas is not retained and blood circulation promotion effects cannot be obtained because bubbles are unlikely to form during injection.

(Optional component)
The aqueous stock solution constituting the aerosol composition according to the present invention includes, in addition to the above essential components, a moisturizer such as glycerin and sorbite, ethanol, Alcohols such as isopropanol, perfumes, antioxidants such as dl-α-tocopherol, antiseptics such as p-hydroxybenzoic acid ester, agents such as whitening agents and skin roughening agents, and the like can be added.

(carbon dioxide gas)
Carbon dioxide is an essential component in the present invention. Compressed gases such as compressed air, nitrogen, and oxygen have low solubility in aqueous solutions, so that foam generation is weak and good bubbles are not formed, and blood circulation promoting effects are not obtained. This carbon dioxide gas is sealed in an aerosol container in which the aqueous stock solution is stored.

Note that compressed gas such as compressed air, nitrogen, and oxygen, which are usually used for aerosol products as a propellant, has low solubility in aqueous stock solutions, so that foam formation is weak and good foam is not formed, and blood circulation promotion effect is also obtained. I can't. Similarly, a liquefied gas such as LPG (liquefied petroleum gas), which is usually used for aerosol products as a propellant, not only provides a blood circulation promoting effect but also irritate the skin.

  In addition, the carbon dioxide content in the aerosol composition is preferably in the range of 1000 to 10,000 ppm in order to function as a propellant and to exhibit an excellent blood circulation promoting effect. Preferably it is 1400-7000 ppm. If the carbon dioxide concentration is less than 1000 ppm, it is difficult to obtain a blood circulation promoting effect, and if it exceeds 10000 ppm, aerosol products using only compressed gas should be less than 1.0 MPa at 35 ° C. However, it is not preferable because it exceeds 1.0 MPa.

  Moreover, in order to exhibit the blood circulation promotion effect by a carbon dioxide gas, pH of an aerosol composition should just be 7.0 or less in the state which a carbon dioxide gas dissolved, and since it is a product used for skin, it is pH3.0. It is preferably in the range of -7.0, more preferably in the range of pH 4.0-6.0. In order to adjust the pH within the above range, a pH adjusting agent such as sodium citrate may be blended. In addition to carbon dioxide, LPG (liquefied petroleum gas), which is usually used in aerosol products as a propellant, may be used as a propellant as long as it does not irritate the skin and does not cause harmful effects in the present invention. Compressed gas such as compressed air, nitrogen, and oxygen may also be used as a propellant in addition to carbon dioxide gas without departing from the object of the present invention.

(Aerosol container)
The aqueous stock solution and the carbon dioxide gas are enclosed in a pressure-resistant container equipped with an aerosol valve and a nozzle. There is no particular limitation on the sealing method. For example, it is possible to employ a method in which each component of the aqueous stock solution is stirred and mixed, adjusted, filled into a pressure resistant container, and further compressed carbon dioxide gas is sealed in the pressure resistant container. . In addition, the pressure vessel used may be any material that can withstand the internal pressure of the enclosed carbon dioxide gas and can be injected in the form of bubbles, such as aluminum or tinplate, as well as polyacetal, polycarbonate, etc. A container such as a synthetic resin can be used. Furthermore, there are no particular restrictions on the nozzle diameter and nozzle length that serve as the injection port, and various sizes and lengths suitable for allowing the enclosed contents to be injected in the form of bubbles can be used. .

  The aerosol composition according to the present invention can be implemented exclusively for the purpose of imparting carbon dioxide gas to the skin, but it is a product for other functions and uses, for example, basic makeup such as lotion, milky lotion, cosmetic liquid, cleansing agent, etc. It can also be used for cosmetics for hair and scalp such as cosmetics, shampoos and conditioners, hair restorers, and body care cosmetics such as body soaps.

(State of foam)
As described above, the present invention is an aerosol composition that is jetted in the form of foam, and when applied to a nonwoven fabric or fiber, a part or all of it is absorbed while defoaming and has an effect of promoting blood circulation when applied to a human body. It is recognized.

  At that time, if the foam is hard, it is not absorbed when applied to a liquid-absorbing member such as a nonwoven fabric. Therefore, the foam when 3 g is sprayed from a position of 3 cm height onto the hard glass surface is 1 / Those that defoam to a height of 2 or 1 cm or less are suitable.

  In addition, the size of the bubbles is arbitrary, but since it is necessary to enter at least part of the bubbles without defoaming into the liquid-absorbing member described below, the diameter is about 2 cm to 10 cm when 3 g is discharged. Is desirable. The size of each bubble is preferably about 10 μm to 500 μm in diameter, more preferably about 50 μm to 300 μm, from the viewpoint that the bubbles can penetrate into the space of the liquid absorbing member such as a nonwoven fabric without breaking. However, the size of the preferred individual bubbles changes depending on the size of the space of the liquid absorbing member, and is not necessarily limited to the above range.

(Liquid absorbing member)
As the liquid-absorbing member, a member having a liquid-absorbing property that can absorb water, such as a nonwoven fabric, a woven fabric, a knitted fabric, a fiber such as cotton, or paper, can be used. In addition, it is desirable that the liquid absorbing member has a minute space that can be penetrated in a state where at least a part of the bubbles is not broken. The form for forming this space is free, for example, in the case of nonwoven fabric or cotton, the space between fibers, in the case of woven fabric or knitted fabric, the space between yarns, In the case of a porous material, the hole etc. can be illustrated. The material is not particularly specified, and examples thereof include non-woven fabrics such as polyester, nylon, wool, silk, cellulosic pulp, cotton and rayon, and mixed fibers and / or sheets. Among these, a cellulose-based pulp or cotton nonwoven fabric is preferable in terms of moisture retention. Moreover, in the case of a nonwoven fabric etc., what has the unevenness | corrugation in the surface can be used suitably. The shape can be implemented as various shapes such as a rectangular shape of about 3 to 5 cm square, and a shape of a sheet of a facial cosmetic pack imitating a face shape.

(Combination)
About the Example described in Table 1, and the comparative example described in Table 2, each component was enclosed in the aerosol container in accordance with the conventional method. The obtained aerosol products were subjected to the following tests, and the results are shown in Tables 1 and 2.

(Measuring method)
(1) Confirmation of foam state The foam height after 120 seconds of foam injection from a position of 3 cm height onto the hard glass surface was measured to confirm the foam state.
○: Foam height is defoamed to 50% or less or 1 cm or less at the initial stage of injection ×: Foam height exceeds 50% of initial state or exceeds 1 cm (2) Adhesion test Twenty men and women in their 20s and 50s were evaluated by conducting an adhesion test.
After taking 0.5 g of each sample into a 3 cm × 3 cm (thickness 3 mm) commercially available cosmetic non-woven cotton fabric, 20 seconds later, it was affixed to the cheek of the face facing the front, and the contact state was observed. . This observation was performed by releasing the hand immediately after attaching the cotton nonwoven fabric and leaving it as it was.
○: Close contact for 3 minutes or more Δ: Peel off within 1 to 2 minutes ×: Peel off within 1 minute (3) Skin flush and blood flow 20 people in their 20s and 50s have skin flush and blood flow Tests were conducted and evaluated.
After removing 0.5 g of each sample on a cotton non-woven fabric of 5 cm × 6 cm (thickness 3 mm), it was applied to the cheek of the face within 20 seconds, and the state of the skin after removing it for 3 minutes (skin flush) Was visually observed.
◎: 18 or more people have seen flushing ○: 14-17 people have seen flushing △: 10-13 people have seen flushing ×: 9 or less people have seen flushing (4) Measurement of carbon dioxide concentration For Examples 1 to 3, the carbon dioxide electrode model 9502BNWP manufactured by Themo Scientific was used, and the carbon dioxide concentration of the bubbles (all of the bubbles in the bubbles including the carbon dioxide in the bubbles and the carbon dioxide dissolved in the bubble film) The carbon dioxide concentration was 1400 ppm in Example 1, 3800 ppm in Example 2, and 7000 ppm in Example 3. More specifically, bubbles were taken out from the petri dish at 25 ° C., and the upper part was scraped off and left for 1 minute. The foam after 1 minute was collected, diluted 20 times with purified water, and measured with the carbon dioxide electrode.

As described above, in each embodiment of the present invention, the target foam is generated, it can be performed without any trouble for use on the cheeks, and the skin condition (skin flush) can be confirmed visually, It was confirmed that blood circulation can be promoted.
On the other hand, the comparative example has poor adhesion to the skin, and even when the adhesion to the skin is good, the state of the skin (skin flush) cannot be visually confirmed, thereby achieving the object of the present invention. I couldn't.

1 Bubble 2 Liquid Absorbing Member 3 Skin

Claims (5)

An aqueous stock solution having a viscosity of 5 to 1000 mPa · s containing water and a polysaccharide-based polymer, and carbon dioxide gas are enclosed in an aerosol container and injected from the aerosol container in the form of bubbles,
The aerosol composition is sprayed onto the liquid absorbing member,
A part or all of the foam is absorbed by the liquid absorbing member while defoaming,
An aerosol composition for promoting blood circulation, wherein the carbon dioxide gas contained in the defoamed foam comes into contact with the object when the liquid absorbing member is attached to the object. In the state in which 3 g of the aerosol composition is jetted from a position of 3 cm in height onto the hard glass surface, the foam has a foam height of 1/2 or less of the initial jetting, or 1 cm or less after 120 seconds from jetting. The aerosol composition for promoting blood circulation according to claim 1, wherein the composition is defoamed. The aerosol composition is sprayed onto a liquid-absorbing member having a space larger than the diameter of the foam,
The at least part of the foam penetrates into the space without being broken, and a part or all of the foam is absorbed by the liquid absorbing member while defoaming. An aerosol composition for promoting blood circulation. The aerosol composition for promoting blood circulation according to any one of claims 1 to 3, wherein the foam has a carbon dioxide concentration of 1000 ppm or more. An injection step of injecting the aerosol composition according to any one of claims 1 to 4 from the aerosol container to the liquid-absorbing member in a foam state, and a part of the bubbles disappears into the liquid-absorbing member An absorption process to be absorbed,
In the absorption step, the liquid-absorbing member has a space larger than the diameter of the bubbles, and the foam-absorbing member is defoamed after entering the space without breaking at least a part of the bubbles. How to use an aesol composition.