JP7085727B2 - cosmetic - Google Patents

Description

The present invention relates to a cosmetic product comprising a container filled with a viscous cosmetic and the open portion of the container covered with a reticulum.

In recent years, there have been disclosed new forms of cosmetics in which a sponge-like impregnated body holds cosmetics and the cosmetics are taken out from the impregnated body (see, for example, Patent Documents 1 and 2). When the impregnated body holds the cosmetics in this way, there is a problem that the volume of the impregnated body is bulky and the container becomes large. Therefore, in order to reduce the size of the container and improve portability, the open portion of the container in which the cosmetics are contained is covered with a film-like body without using an impregnated body, and the cosmetics are taken out through the film-like body. A form of cosmetic product is disclosed (see, for example, Patent Document 3).

Special table 2013-530252 Special table 2015-512932 JP-A-2017-002026

When the cosmetic contained in the container is used, the mesh body is pressed to exude the cosmetic from the mesh body, and the exuded cosmetic is taken out. Depending on the type of thickener used, even if the viscosity is the same, the cosmetic may not exude from the reticulated body, or even if it exudes, the amount of exuding cosmetic may be too large. There was a problem that it was difficult to adjust the amount of charge taken out.
The present invention provides a cosmetic product in which an open portion of the container in which the cosmetic product is contained is covered with a mesh body, and the cosmetic product is taken out through the mesh body, so that an appropriate amount of the cosmetic product can be easily taken out. The purpose is.

As a result of diligent research, the present inventors have found that by using a specific thickening agent in a viscous cosmetic, the amount of the viscous cosmetic exuding from the reticulum can be appropriately adjusted, and the present invention has been made. I arrived.
That is, in the cosmetics of the present invention, in the cosmetics in which the open portion of the container in which the viscous cosmetics are housed is covered with a reticulated body and the viscous cosmetics are taken out through the reticulated body, the viscous cosmetics are thickened. It contains hydrophobically modified polyether urethane as an agent and is characterized by having a viscosity of 8000 to 20000 mP a · s.

In the cosmetic product of the present invention, the open portion of the container containing the viscous cosmetic is covered with a mesh body, and the viscous cosmetic is taken out through the mesh body. The viscous cosmetic contains a hydrophobically modified polyether urethane as a thickener and has a viscosity of 8000 to 20000 mP a · s. A large amount of viscous cosmetics exudes. Therefore, it is possible to prevent a large amount of viscous cosmetics from being taken out, and an appropriate amount of viscous cosmetics can be used. Further, since an appropriate amount of viscous cosmetics exudes, the exuded viscous cosmetics are less likely to remain on the reticulated body, and contamination can be prevented.

It is sectional drawing of the cosmetic of this invention.

Hereinafter, embodiments of the present invention will be described.

In the cosmetic product 1 of the present invention, as shown in FIG. 1, the viscous cosmetics 30 are contained in the container 10 having an opening, and the opening is covered with the mesh body 20. Although not shown in the figure, it is preferable that the cosmetic product has a lid that covers the reticulated body 20. The cosmetic product of the present invention is a concept that includes quasi-drugs in addition to ordinary cosmetic products.
The reticulated body 20 has elasticity and has a plurality of holes. That is, the reticulated body 20 is denatured by receiving external pressure, and returns to its original shape when the external pressure is released. The network 20 is made of natural fibers such as cotton, linen and wool, fabrics woven with synthetic fibers such as rayon, nylon fibers and polyester fibers, and porous materials such as foamed rubber and foamed polyurethane. The sheet body and the like can be mentioned.
In the cosmetic product 1 of the present invention, the viscous cosmetics 30 are prepared so as not to easily pass through the reticulated body 20 when no external pressure is applied to the reticulated body 20. On the other hand, when external pressure is applied, the viscous cosmetic 30 is prepared so as to gradually pass through (exude) the reticulated body 20. It is preferable that the reticulated body has elasticity and the size of the holes increases to some extent according to the force applied to the reticulated body.
In the cosmetic product 1 of the present invention, the reticulated body 20 is pressed in the direction of the viscous cosmetics 30, and a desired amount of the viscous cosmetics 30 is exuded from the reticulated body 20 through the holes of the reticulated body 20, and the exuded viscous cosmetics 30. Is used by taking it out with an applicator such as a puff or a finger and applying it to the skin.
The hole of the reticulated body 20 is preferably 1 to 500 μm in consideration of exuding the viscous cosmetic.

The cosmetic 30 in the cosmetic product 1 of the present invention contains a hydrophobically modified polyether urethane as a thickener.
The hydrophobically modified polyether urethane has the following formula (1):
R ₁ -{(OR ₂ ) _k -OCONH-R ₃ [-NHCOO- (R ₄ -O) _n -R ₅ ] _h } _m ... (1)
(In the formula, R ₁ , R ₂ and R ₄ represent hydrocarbon groups having 2 to 15 carbon atoms which may be the same or different from each other, and R ₃ represents a hydrocarbon group which may have a urethane bond. R ₅ represents a straight chain, branched chain or secondary hydrocarbon group having 8 to 36 carbon atoms, m is a number of 2 to 8, h is 1 or 2, and k is in the range of 1 to 500. It is a number, where n is a number in the range of 1 to 200).

The hydrophobically modified polyether urethane represented by the above general formula (1) is, for example, one or more kinds of polyether polyols represented by _R1 -[(OR2) _{k -} OH] _m and R. _3- (NCO) One or more polyisocyanates represented by _{h + 1} and one or two or more polyether monoalcohols represented by HO- _{( R4} -O) _n -R5. It can be obtained by reacting.

In this case, R ₁ to R ₅ in the general formula (1) are used R ₁ -[(OR ₂ ) _k -OH] _m , R _3- (NCO) _{h + 1} , HO- (R ₄ -O). Determined by _{n -} R5. The charging ratio of the three is not particularly limited, but the ratio of the hydroxyl group derived from the polyether polyol and the polyether monoalcohol to the isocyanate group derived from the polyisocyanate is NCO / OH = 0.8: 1 to 1.4: 1. Is preferable.

Among them, those having a structure in which both ends of polyethylene glycol are modified with decyltetradecyl alcohol and having an average weight molecular weight of about 50,000 (GPC method) are preferably used. Examples of commercially available products of such hydrophobically modified polyether urethane include "ADEKANOL GT-700" (manufactured by ADEKA Corporation), which is a PEG-240 / decyltetradeceth-20 / hexamethylene diisocyanate copolymer. In the above general formula (1), "Adecanol GT-700" is a hydrocarbon group having R ₁ , R ₂ , and R ₄ having 2 carbon atoms, R ₃ having 6 carbon atoms, and R ₅ having 24 carbon atoms. = 2, h = 1, k = 120, n = 20 corresponds to the compound.
The content of the hydrophobically modified polyether urethane is preferably 0.01 to 3.0% by mass with respect to the total amount of the viscous cosmetic in the cosmetic product of the present invention. This is because if it is less than 0.01% by mass, it is difficult to obtain appropriate viscosity and it becomes too easy to seep out from the reticulated body, and if it exceeds 3.0% by mass, the feeling of use such as spreading on the skin may deteriorate. ..

Further, the viscosity of the viscous cosmetic in the cosmetic product of the present invention is adjusted to 8000 to 20000 mP as. This viscosity is more preferably 10,000 to 20,000 mP a · s. When the viscosity of the viscous cosmetic is lower than 8000 mP a · s, when the viscous cosmetic is taken out by pressing the reticulated body, the viscous cosmetic is exuded from the reticulated body in a much larger amount than desired. Therefore, it cannot be completely removed by the applicator and remains on the reticulated body. The viscous cosmetics remaining on the reticulated body are separated from the reticulated body, which causes contamination. On the other hand, when the viscosity of the viscous cosmetic exceeds 20000 mP a · s, even if the reticulated body is pressed, the desired amount of the viscous cosmetic does not exude onto the reticulated body, and the viscous cosmetic is pressed with a stronger force or for a long time. It needs to be pressed, which causes problems in use. That is, in the cosmetic product of the present invention, an appropriate amount of viscous cosmetic product can be taken out with the above-mentioned wide range of viscosities without stressing the above-mentioned user, and the concern of contamination can be reduced.

In addition to the above ingredients, the viscous cosmetics in the cosmetics of the present invention include various surfactants, oily ingredients, higher alcohols, lower alcohols, and waxes that are usually blended in cosmetics as long as the effects of the present invention are not impaired. Kinds, fluorine compounds, resins, thickeners, antibacterial preservatives, fragrances, moisturizers, salts, solvents, antioxidants, chelating agents, neutralizing agents, pH regulators, insect repellents, physiologically active ingredients, pigments, Ingredients such as pigments and fragrances can be used.
The dosage form of the viscous cosmetic in the cosmetic product of the present invention is not particularly limited and may be an emulsified type. In the case of an emulsified type, an oil-in-water type is preferable in consideration of stability. ..

The example of the viscous cosmetic in the cosmetic of the present invention is not particularly limited, but it is preferably in the form of a make-up cosmetic such as a viscous gel-like or cream-like foundation from the form of the container.

Hereinafter, the present invention will be specifically described with reference to Examples, but these do not limit the scope of the present invention.

<Preparation of viscous cosmetics>
The viscous cosmetics according to Examples (however, Example 1 is a reference example) and Comparative Examples were prepared with the compositions shown in Table 1 below, and the viscosity of the prepared viscous cosmetics was measured. The viscosity was measured at a rotation speed of 20 rpm using a BII type viscometer (model: BHII) manufactured by Toki Sangyo Co., Ltd.

<Retrieval evaluation>
13.5 g of the viscous cosmetics prepared in the above Examples and Comparative Examples was filled in a container A having a diameter of 5 cm and a depth of 0.8 cm, and a sample covered with a reticulum was prepared. As the net-like body, two types of the net-like body A (opening: about 300 μm) woven with elastic polyethylene terephthalate fibers and the net-like body B (opening: about 20 μm) were used.
Keep the prepared sample horizontal so that the reticulum faces upward, place a circular filter paper with a diameter of 3 cm on the reticulum, place a 200 g weight on the filter paper, leave it for 5 seconds, and then remove the filter paper and the weight. Then, the weight of the viscous cosmetics adhering to the filter paper was measured. That is, the amount of the viscous cosmetic taken out when the reticulated body was pressed was measured. The results are shown in Table 1.
In addition, x in the table indicates that the viscous cosmetic could not be completely adhered to the filter paper because the reticulated body sank when the weight was placed and a large amount of viscous cosmetic was exuded. If a large amount of viscous cosmetics seeps out, the viscous cosmetics will remain on the reticulated body, causing contamination.

As shown in Table 1 above, in Examples 1 and 2, even if the reticulated body was changed, the amount taken out was 0.08 g or more with a wide range of viscosities, which was an appropriate amount. On the other hand, looking at comparative examples, xanthan gum, carrageenan, sodium carboxymethyl cellulose, and carbomer all have a viscosity of about 10,000 mP a · s, and a large amount of viscous cosmetics seeps out, or at about 20,000 mP a · s. There was a problem that a proper amount of viscous cosmetic could not be taken depending on the reticulum.

Oil-in-water gel foundation (compounding ingredients) (% by mass)
(1) 1,3-butylene glycol 10.0
(2) Hydrophobic modified polyether urethane 1.0
(Product name: ADEKA NOL GT-700 ADEKA)
(3) Remaining amount of purified water (4) Sorbitan stearate 2.0
(5) Decaglyceryl monomyristate 3.0
(6) Polyoxyethylene methylglucoside 3.0
(7) Methylparaben 0.2
(8) Glyceryl tri2-ethylhexanoate 10.0
(9) Methylpolysiloxane 4.0
(10) Behenyl alcohol 3.0
(11) 2-Octyldodecanol 3.0
(12) Diglyceryl triisostearate 1.0
(13) d-δ-tocopherol 0.05
(14) Titanium oxide 12.0
(15) Red iron oxide 0.2
(16) Yellow iron oxide 1.0
(17) Black iron oxide 0.1

(Manufacturing method)
The aqueous phase portions (1) to (7) are heated and dissolved at 70 ° C. or higher to homogenize them. On the other hand, the oil phase portions (8) to (17) are heated, melted and mixed at 70 ° C. or higher, and then dispersed by a three-roller or the like. Then, while adjusting both the aqueous phase portion and the oil phase portion to 70 to 80 ° C., the oil phase is added to the aqueous phase, emulsified with a homomixer, cooled while slowly mixing to room temperature, and defoamed.
The viscosity of the obtained oil-in-water gel-like foundation was measured and found to be 11000 mP a · s.

A container A was filled with 13.5 g of the obtained oil-in-water gel-like foundation, a sample covered with the network A was prepared, and the above-mentioned take-out evaluation was carried out. The result was 0.082 g, and the take-out amount was an appropriate amount. rice field.

1 Cosmetics 10 Container 20 Reticulated 30 Viscous cosmetics

Claims (1)

In cosmetics in which the open portion of the container in which the viscous cosmetic is housed is covered with a mesh body and the viscous cosmetic is taken out through the mesh body.
The mesh size of the reticulated body is 20 μm to 300 μm, and the mesh size is 20 μm to 300 μm.
The viscous cosmetic contains a (PEG-240 / decyltetradecel-20 / HDI) copolymer as a thickener and has a viscosity of 8000 to 20000 mPa · s.
A cosmetic product in which the amount of the viscous cosmetic product taken out is 0.08 g or more.

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