JP6401089B2 - Spray type skin cleanser - Google Patents

Description

  The present invention relates to a spray-type skin cleanser that can be used by spraying on the skin, and more specifically, obtained by containing at least a vinyl polymer, a quaternary cationic surfactant, and a monovalent or divalent salt. The present invention relates to a spray-type skin cleanser having a low viscosity, which can remove a wide range of skin stains and old keratin at once by spraying and lightly rubbing on the skin.

  Removing skin stains is the most basic process in skin care, and various skin cleansing agents have been developed to date. Specifically, skin cleansing agents distributed under the names of cleansing foams, cleansing creams, cleansing gels, cleansing oils, facial cleansing foams, soaps, body soaps, gommages and the like are typical examples.

  Among them, a skin cleansing agent called gommage refers to a skin cleansing agent that can remove dirt and old keratin on the skin together with plaque-like aggregates that are solidified by applying to the skin and rubbing lightly. Numerous skin cleansing agents have been developed so far that can visually recognize the process of removing dirt.

  Many Gommages developed to date aim to remove dirt and keratin on the skin of the face, but Gommage does not need to be pre-wet with water and does not need to be washed away with water after use. It can be used as a care product for removing dirt on the skin of the whole body of a person who cannot move freely and is difficult to bathe.

  When using sesame for the purpose of removing not only the face but also the whole body, sesame that can be applied in a small amount over a wide area is desired. As a form that can be applied over a wide range with a small amount, for example, a spray type gommage that can be used by spraying on the skin is conceivable.

On the other hand, patent document 1 is mentioned as an example of the gommage developed so far.
Patent Document 1 describes a skin cleansing agent containing a monoalkyltrimethylammonium salt and / or a dialkyldimethylammonium salt as a vinyl polymer and a quaternary cationic surfactant, and this skin cleansing agent is effective for removing skin stains. It is described that the skin condition after rinsing and wiping is excellent in moisture, and the process of removing dirt can be more visually realized.
Further, it is described that this skin cleansing agent can take a dosage form such as gel or gel cream.
However, since the invention described in Patent Document 1 has a high viscosity, it cannot be sprayed over a wide area of the skin, and is not suitable for use in removing dirt on a large area of skin such as hands and feet.
In the invention described in Patent Document 1, the viscosity is determined by the content of the vinyl polymer. Therefore, it is necessary to reduce the content of the vinyl polymer in order to reduce the viscosity. There is a problem that no platy aggregates are formed.

Moreover, the skin cleansing agent of patent document 2 is mentioned as a gommage which is easy to solidify even if the site | part of the skin to apply | coat is wet with water.
The invention described in Patent Document 2 was developed by the present inventors and includes at least water, a polymer having a reactive group that reacts with a cation (corresponding to the vinyl polymer of the present invention), a cationic surfactant, an oil agent, and a nonionic interface. It is described to contain an active agent. Thus, it is described that a moist feeling is maintained after washing, and it is easy to solidify even when applied to skin wet with water.
However, since the invention described in Patent Document 2 also has a high viscosity, it cannot be sprayed over a wide area of the skin like the invention described in Patent Document 1, and is suitable for applications that remove dirt on a wide area of skin such as hands and feet. Absent.
Also in the invention described in Patent Document 2, the viscosity is determined by the content of the polymer having a reactive group that reacts with a cation. Therefore, in order to reduce the viscosity, it is necessary to reduce the content of the polymer having a reactive group that reacts with a cation. However, when the content of the polymer having a reactive group that reacts with a cation is small, there is a problem that no plaque-like aggregate is formed even when rubbed.

  As described above, even if the techniques disclosed in Patent Document 1 and Patent Document 2 are used, it is difficult to produce a spray-type skin cleanser that is applied to the skin and lightly rubbed to clean the skin. It was. Therefore, a skin cleansing agent that can reduce the viscosity without reducing the vinyl polymer content and can be used by spraying on the skin has been desired in the art.

JP-A-10-273434 JP 2007-161647 A

The present invention has been made to solve the above-mentioned problems of the prior art, and as a result of repeated studies by the present inventors, surprisingly, by adding monovalent or divalent salts. The present invention succeeded in producing a skin cleanser having a low viscosity without reducing the content of vinyl polymer.
Therefore, the present invention provides a spray-type skin cleanser that can remove a wide range of skin dirt and old keratin at once with a small amount by spraying on the skin and rubbing lightly.

The invention according to claim 1, vinyl polymers, quaternary cationic surfactants, and viewed contains a monovalent or divalent salt, rubbing dead skin, wherein the viscosity of 5-2000mPa · S It is related with the spray type skin cleansing agent for dropping .

The invention according to claim 2, the amount of the monovalent or divalent salt, wherein the 5 wt% 0.01 wt% of spray-type skin cleansing, according to claim 1 The present invention relates to a spray type skin cleanser for rubbing and removing old keratin .

The invention according to claim 3, characterized in that the monovalent or divalent salt is calcium chloride, sodium chloride, magnesium chloride, any one or a combination of salts of potassium or barium chloride, claim A spray-type skin cleanser for rubbing and removing old keratin as described in 1 or 2.

The invention according to claim 4 is characterized in that the vinyl polymer is any one of acrylic acid / alkyl methacrylate copolymer or carboxyvinyl polymer or a combination thereof. It is related with the spray type skin cleansing agent for rubbing and removing the old keratin described in one.

The invention according to claim 5 is characterized in that the quaternary cationic surfactant is one or a combination of dicocoyldimethylammonium chloride, stearyltrimethylammonium bromide or stearyltrimethylammonium chloride. The present invention relates to a spray-type skin cleanser for rubbing and removing old keratin according to any one of items 1 to 4.

The invention according to claim 6 further includes an antibacterial agent selected from the group consisting of isopropylmethylphenol and triclosan, and scrubs and removes old keratin according to any one of claims 1 to 5 The present invention relates to a spray type skin cleanser.

The invention according to claim 7 further comprises an anti-inflammatory agent selected from the group consisting of dipotassium glycyrrhizinate, allantoin and stearyl glycyrrhetinate, and the old according to any one of claims 1 to 6 The present invention relates to a spray-type skin cleansing agent for rubbing and removing keratin .

According to the invention of claim 1, the spray type skin cleanser contains a vinyl polymer, a quaternary cationic surfactant, and a monovalent or divalent salt, so that the viscosity is low (5-2000 mPa · S). Moreover, when the skin is rubbed, a skin cleanser capable of efficiently forming a plaque-like aggregate can be obtained. As a result, it can be used by spraying on a wide range of skin at a time in a small amount, so it can quickly remove dirt on the skin and remove dirt on the whole body of people who can not move freely and have difficulty bathing. It can also be used as a care product for dropping.
Furthermore, by providing the above configuration, the spray-type skin cleanser can be stored for a long time in a stable state without separation.

  According to the invention which concerns on Claim 2, a viscosity is low because the compounding quantity of the said monovalent | monohydric or bivalent salt is 0.01 to 5 weight% of the said spray type skin cleanser (10-400 mPa). -It can be set as the skin washing | cleaning agent which can form a paste-like aggregate efficiently if it rubs S and skin.

According to the invention of claim 3, wherein the monovalent or divalent salts of calcium chloride, sodium chloride, magnesium chloride, by either one or a combination of salts of potassium or barium chloride, a low viscosity Moreover, when the skin is rubbed, a skin cleanser capable of efficiently forming a plaque-like aggregate can be obtained.

  According to the invention of claim 4, the vinyl polymer is any one of acrylic acid / alkyl methacrylate copolymer or carboxyvinyl polymer, or a combination thereof, and is more effective when applied to the skin and rubbed lightly. Therefore, it is possible to obtain a spray-type skin cleanser that is solidified and can easily remove dirt and old keratin on the skin.

  According to the invention according to claim 5, the quaternary cationic surfactant is lipophilic by using any one or combination of dicocoyldimethylammonium chloride, stearyltrimethylammonium bromide and stearyltrimethylammonium chloride. The dirt can be removed more efficiently.

  According to the invention which concerns on Claim 6, it can preserve | save for a long period of time by further including the antibacterial agent selected from the group which consists of isopropylmethylphenol and triclosan.

  According to the invention which concerns on Claim 7, the inflammation of skin can be suppressed and rough skin can be prevented by further including the anti-inflammatory agent selected from the group which consists of dipotassium glycyrrhizinate, allantoin, and stearyl glycyrrhetinate.

  Hereinafter, the spray type skin cleansing agent according to the present invention will be described in detail.

<1. Vinyl polymer>
The vinyl polymer used in the present invention has been conventionally used as a thickener in a skin cleansing agent called gommage, and is a necessary element for affecting the viscosity and generating a solidified solid aggregate. is there.

A vinyl polymer is a water-soluble polymer mainly formed by polymerizing acrylic acid, and various products are commercially available depending on the degree of polymerization and the degree of crosslinking, but the vinyl polymer used in the present invention is not particularly limited. Any type may be used.
Specifically, commercial products such as Noboon's Carbopol 1382 and Wako Pure Chemical Industries Hibiswako 103 can be blended in the spray type skin cleanser of the present invention. The vinyl polymer may be a single substance or a combination of several substances.

  In addition, even if it is a water-soluble polymer, substances such as xanthan gum, sodium alginate, carboxymethylcellulose, etc. can be blended with a spray-type skin cleanser, or in contact with the above-mentioned quaternary cationic surfactant, Is not preferable because it does not occur.

  Further, the pH of the aqueous solution formed by contacting the vinyl polymer with the quaternary cationic surfactant is preferably in the range of 1.2 to 4.0, and in the range of 2.0 to 3.5. More preferably, it is within. A pH of less than 1.2 is not preferable because the skin is inflamed. Moreover, when pH exceeds 4.0, since a viscosity will become high, a usability | use_condition will be impaired and it becomes impossible to spray, it is unpreferable.

  The blend amount of the vinyl polymer in the spray-type skin cleanser of the present invention is preferably 0.2% to 7.0% by weight of the spray-type skin cleanser. If the blending amount is less than 0.2% by weight, it is difficult to form a plaque-like aggregate, which is not preferable. Moreover, since a viscosity will become high when a compounding quantity exceeds 7.0 weight%, a usability | use_condition will be impaired and it becomes impossible to spray, it is unpreferable.

<A quaternary cationic surfactant>
The quaternary cationic surfactant used in the present invention has been conventionally used in a skin cleansing agent called gommage, and is a necessary element for generating plaque-like solidified aggregates.

  The quaternary cationic surfactant only needs to be soluble in water or a water / alcohol mixed system, and is generally in the form of chloride or bromide. For example, dicocoyldimethylammonium chloride, stearyltrimethylammonium bromide, And stearyltrimethylammonium chloride. In the case of taking a form as a cation of a metal ion such as calcium ion or magnesium ion, it is not preferable because a stable aqueous solution cannot be obtained even if it comes into contact with the vinyl polymer.

Moreover, it is preferable that carbon number of a quaternary cationic surfactant is C8 or more and C40 or less. When the carbon number is less than C8, it is not preferable because it becomes difficult to form a plaque-like aggregate when the spray type skin cleansing agent containing the carbon is applied to the skin. On the other hand, if the carbon number exceeds C40, the stability of the aqueous solution obtained by contacting with the vinyl polymer is unfavorable.
The quaternary cationic surfactant may be a single substance or a combination of several substances.

  The blending amount of the quaternary cationic surfactant in the spray type skin cleanser of the present invention is preferably 0.2% by weight to 7.0% by weight of the spray type skin cleanser. If the blending amount is less than 0.2% by weight, it is difficult to form a plaque-like aggregate, which is not preferable. Moreover, since it will become impossible to spray when a compounding quantity exceeds 7.0 weight%, it is unpreferable.

<3.1 or divalent salt>
The monovalent or divalent salt used in the present invention is an element necessary for generating plaque-like aggregates while reducing the viscosity so that the skin cleanser of the present invention can be sprayed. . In the present invention, by adding the monovalent or divalent salt at an appropriate concentration, a spray type skin cleanser having a viscosity of 5-2000 mPa · S, preferably 10-400 mPa · S can be obtained. This is a viscosity that is much lower than that of a conventional gel-like skin cleanser having a viscosity of usually 5000 mPa · S or more.

  Various products are commercially available as monovalent or divalent salts, but the monovalent or divalent salts used in the present invention are not particularly limited and may be any type. Examples of the monovalent or divalent salt include calcium chloride, sodium chloride, magnesium chloride, aluminum chloride, potassium chloride, and barium chloride.

  The blending amount of the monovalent or divalent salt in the spray type skin cleanser of the present invention is preferably 0.01% to 5.0% by weight of the spray type skin cleanser. If the blending amount is less than 0.01% by weight, the skin cleanser becomes gelled and cannot be sprayed. On the other hand, if the blending amount exceeds 5.0% by weight, secondary agglomeration occurs and clogging occurs, which makes it impossible to spray.

<4. Other components>
In the spray type skin cleansing agent of the present invention, various components that are generally blended in cosmetics can be blended as necessary in addition to the above-described components as long as the effects of the present invention are not hindered.
Examples of these components include alcohols, moisturizers, antibacterial agents, anti-inflammatory agents, plant extracts, cleaning agents, coloring agents, emollients, fragrance components, and vitamins.

  Examples of the alcohol include ethanol, isopropanol, dipropylene glycol, and absolute ethanol. By containing alcohol, hydrophilic and hydrophobic substances can be simultaneously dissolved in the spray-type skin cleanser. In addition, the viscosity of the spray type skin cleanser can be further reduced.

  Examples of the humectant include concentrated glycerin, sodium hyaluronate (2), hyaluronic acid, collagen, placenta extract (1), hydrolyzed collagen powder, 1,3 butylene glycol and the like. By including the moisturizing agent, a spray type skin cleanser having a higher moisturizing effect can be obtained.

  Examples of the antibacterial agent include isopropylmethylphenol and triclosan.

  Examples of the anti-inflammatory agent include dipotassium glycyrrhizinate, allantoin, stearyl glycyrrhetinate. Including an anti-inflammatory agent can suppress skin inflammation and prevent rough skin.

  Examples of plant extracts include yuzu ceramide, cherry leaf extract, aloe extract (2), rosemary extract, parsley extract (1), tea extract (1), kawara mugwort extract and the like.

  Examples of the detergent include lauryldimethylaminoacetic acid betaine, polyoxyethylene polyoxypropylene glycol (5EO) (30 PO), polyoxyethylene alkyl (12-14) ether (12 EO), and the like.

  Examples of the colorant include red No. 106, yellow No. 4, blue No. 1, green No. 401, and the like.

  Examples of emollients include olive oil, jojoba oil, and 2-ethylhexyl palmitate.

  Examples of scent components include essential oils such as orange oil, wild rose oil, and mint oil, and fragrances.

  Examples of vitamins include cyanocobalamin and ascorbyl tetra-2-hexyldecanoate.

<5. Spray container>
The spray container filled with the spray type skin cleansing agent of the present invention is not particularly limited, and examples thereof include a dispenser type spray container, a trigger type spray container, and an aerosol type spray container that requires pressurized gas.

  The dispenser-type spray container is a spray container that can be sprayed at atmospheric pressure, does not require pressurized gas, etc., and has a relatively simple container structure. The structure is composed of an extrusion pump type nozzle equipped with a suction type tube and a screw type container which is fixed and filled with contents. In order to enhance the spray function, conditions such as the hole diameter of the pump type nozzle and the pumping volume per pump can be selected and adjusted according to the object to be cleaned and the purpose of cleaning.

  The trigger type spray container is equipped with a pistol-type trigger type spray device at the mouth of the container body filled with the contents, and can operate the spray at atmospheric pressure, and is highly versatile as a spray container. . The trigger spray container includes all modified trigger spray containers in order to enhance the spray function.

  In addition to the above two types of spray containers, aerosol-type spray containers that require pressurized gas may be used.

  The diameter (π) of the spray port is preferably within a range of 0.1 mm to 0.8 mm. If it is less than 0.1 mm, clogging tends to occur and it becomes difficult to spray, which is not preferable. If it exceeds 0.8 mm, spraying over a wide range is not preferable.

  The effectiveness of the spray-type skin cleanser of the present invention was confirmed by the following examples, but the technical scope of the present invention should not be limited by these examples.

<Comparison of coating amount necessary for cleaning 120 cm ² >
The composition of the spray type skin cleanser used (Example 1) is shown in Table 1 below.

  Table 2 below shows the composition of the gel-like skin cleanser used as Comparative Example 1, which is highly viscous and unsuitable for spraying.

  As a spray container, a Z-305-C060 pump manufactured by Asai Glass Co., Ltd. and a JIP-150 ml bottle (caliber (π): 0.45 mm) were used.

Using the spray type skin cleanser (Example 1) having the composition shown in Table 1 above, the application amount necessary for applying to an area of 120 cm ² is determined with the conventional gel skin cleanser (Comparative Example 1). The comparison results are shown in Table 3 below.

  As shown in Table 3 above, the spray type skin cleanser of the present invention was able to be sprayed over a wide range with a smaller amount than the conventional gel skin cleanser.

<Comparison of application time required to clean 120 cm ² >
Table 4 below shows the results of comparing the coating time required for washing 120 cm ² with Comparative Example 1 using Example 1 above.

  As shown in Table 4 above, the spray type skin cleanser of the present invention was able to be sprayed in a shorter time than the conventional gel skin cleanser.

  INDUSTRIAL APPLICABILITY The present invention can be used as a skin cleanser intended to quickly remove dirt and keratin on the skin by applying a small amount to the skin and rubbing it lightly. In addition, it is not necessary to pre-wet the skin with water, and it is not necessary to wash away with water after use, and since it can be sprayed over a wide area at once, the skin of the whole body of a person who cannot move freely and has difficulty in taking a bath It can also be used as a care product for removing dirt.

Claims (7)

Vinyl polymers, quaternary cationic surfactants, and a monovalent or divalent salts seen including,
Viscosity is 5-2000 mPa · S
Spray type skin cleanser for rubbing and removing old keratin . The amount of the monovalent or divalent salt is 0.01% to 5% by weight of the spray-type skin cleanser, for rubbing and removing old keratin according to claim 1. spray-type skin cleansing agent. The monovalent or divalent salt is calcium chloride, sodium chloride, and wherein the magnesium chloride is any one or a combination of salts of potassium or barium chloride, old claim 1 or 2 horny Spray type skin cleanser for rubbing and removing . The old keratin according to any one of claims 1 to 3, wherein the vinyl polymer is any one of acrylic acid / alkyl methacrylate copolymer or carboxy vinyl polymer or a combination thereof. spray-type skin cleansing agent for drop Te. The quaternary cationic surfactant is one or a combination of dicocoyldimethylammonium chloride, stearyltrimethylammonium bromide and stearyltrimethylammonium chloride, respectively. Spray type skin cleanser for rubbing and removing old keratin as described in 1. The spray-type skin cleanser for rubbing and removing old keratin according to any one of claims 1 to 5, further comprising an antibacterial agent selected from the group consisting of isopropylmethylphenol and triclosan. The spray for scrubbing old keratin according to any one of claims 1 to 6, further comprising an anti-inflammatory agent selected from the group consisting of dipotassium glycyrrhizinate, allantoin and stearyl glycyrrhetinate. Type skin cleanser.