JP2018199662A - Cosmetic product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cosmetic in which an open portion of a container in which the cosmetic is accommodated is covered with a net-like body, and an appropriate amount of the cosmetic is easily taken out in the cosmetic that can be taken out via the net-like body. With the goal.
A cosmetic 1 according to the present invention is a cosmetic in which an open portion of a container 10 in which a viscous cosmetic 30 is accommodated is covered with a mesh body 20, and the viscous cosmetic 30 is taken out through the mesh body 20. The viscous cosmetic 30 includes a hydrophobically modified polyether urethane as a thickener and has a viscosity of 8000 to 20000 mP · s.
[Selection] Figure 1

Description

  The present invention relates to a cosmetic product including a container filled with a viscous cosmetic, and an open portion of the container is covered with a net-like body.

  In recent years, cosmetics of a new form in which cosmetics are held in a sponge-like impregnated body and the cosmetics are taken out from the impregnated body have been disclosed (for example, see Patent Documents 1 and 2). When the cosmetic material is held in the impregnated body as described above, there is a problem that the container is enlarged because the volume of the impregnated body is bulky. Therefore, in order to reduce the size of the container and improve portability, the impregnated body is not used, the open part of the container in which the cosmetic is stored is covered with a film-shaped body, and the cosmetic is taken out through the film-shaped body. A cosmetic product in the form is disclosed (for example, see Patent Document 3).

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

When using the cosmetic contained in the container, the mesh is pressed, the cosmetic is oozed out of the mesh, and the oozed cosmetic is taken out. Depending on the type of thickener used, even if the viscosity is the same, the cosmetic does not ooze out from the mesh, or even if it oozes out, the amount of cosmetic oozing out will be too much. There was a problem that it was difficult to adjust the amount of the material taken out.
The present invention provides a cosmetic in which an open portion of a container in which the cosmetic is accommodated is covered with a mesh, and the cosmetic can be easily taken out through the mesh through the mesh. For the purpose.

As a result of intensive studies, the present inventors have found that by using a specific thickener in a viscous cosmetic, it is possible to appropriately adjust the amount of the viscous cosmetic that oozes out of the mesh, and the present invention It came.
That is, the cosmetic of the present invention is a cosmetic in which the open portion of the container in which the viscous cosmetic is stored is covered with a mesh, and the viscous cosmetic is taken out through the mesh, the viscous cosmetic has a thickening It contains hydrophobically modified polyether urethane as an agent and has a viscosity of 8000 to 20000 mP · s.

  In the cosmetic of the present invention, the open portion of the container in which the viscous cosmetic is accommodated is covered with a net-like body, and the viscous cosmetic is taken out through the net-like body. The viscous cosmetic contains a hydrophobically modified polyether urethane as a thickener and has a viscosity of 8000 to 20000 mP · s. Therefore, when pressing the mesh to exude the viscous cosmetic from the mesh, An amount of viscous cosmetic material oozes out. Therefore, taking out a large amount of viscous cosmetics is prevented, and an appropriate amount of viscous cosmetics can be used. In addition, since an appropriate amount of the viscous cosmetic material oozes out, the oozed viscous cosmetic material is less likely to remain on the mesh body, and contamination can be prevented.

  It is sectional drawing of the cosmetics of this invention.

  Hereinafter, embodiments of the present invention will be described.

As shown in FIG. 1, the cosmetic 1 according to the present invention contains a viscous cosmetic 30 in a container 10 having an opening, and the opening is covered with a mesh-like body 20. Although not shown in the figure, the cosmetic preferably has a lid that covers the mesh body 20. The cosmetic of the present invention is a concept that includes quasi-drugs in addition to normal cosmetics.
The mesh body 20 is elastic and has a plurality of holes. In other words, the mesh 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 a natural fiber such as cotton, hemp or wool, a fabric woven with synthetic fibers such as rayon, nylon fiber or polyester fiber, or a porous material formed from a polymer such as foam rubber or polyurethane foam. The sheet body etc. are mentioned.
In the cosmetic 1 of the present invention, the viscous cosmetic 30 is prepared so as not to easily pass through the mesh 20 when no external pressure is applied to the mesh 20. On the other hand, when an external pressure is applied, the viscous cosmetic 30 is prepared so as to gradually pass through (exude) the net-like body 20. It is preferable that the mesh body has elasticity and the size of the hole is increased to some extent according to the force applied to the mesh body.
The cosmetic 1 of the present invention presses the mesh body 20 in the direction of the viscous cosmetic 30, causes a desired amount of the viscous cosmetic 30 to ooze out from the hole of the reticular body 20, and this oozed viscous cosmetic 30. Is taken out with an applicator such as a puff or finger and applied to the skin.
In consideration of causing the viscous cosmetic material to exude, the holes of the mesh body 20 are preferably 1 to 500 μm.

The cosmetic 30 in the cosmetic 1 of the present invention contains hydrophobically modified polyether urethane as a thickener.
The hydrophobically modified polyether urethane is represented by the following formula (1):
R ₁ -{(O—R ₂ ) _k —OCONH—R ₃ [—NHCOO— (R ₄ —O) _n —R ₅ ] _h } _m (1)
(Wherein R ₁ , R ₂ and R ₄ represent a hydrocarbon group having 2 to 15 carbon atoms which may be the same as or different from each other, R ₃ represents a hydrocarbon group which may have a urethane bond, R ₅ represents a linear, branched 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. And n is a number in the range of 1 to 200).

The hydrophobic modified polyether urethane represented by the general formula (1) is, for example, one or more polyether polyols represented by R ₁ -[(O—R ₂ ) _k —OH] _m , and R One or more polyisocyanates represented by _3- (NCO) _{h + 1} and one or more polyether monoalcohols represented by HO— (R ₄ —O) _n —R ₅ It can be obtained by reacting.

In this case, _R 1 to R ₅ of the general formula (1), is used _{R 1 - [(O-R} 2) k -OH] m, R 3 - (NCO) h + 1, HO- (R 4 -O) It is determined by the _n -R _5. The charging ratio of the three members is not particularly limited, but the ratio of the hydroxyl group derived from polyether polyol and polyether monoalcohol to the isocyanate group derived from polyisocyanate is NCO / OH = 0.8: 1 to 1.4: 1. It is preferable that

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 such commercially available products of hydrophobically modified polyether urethane include “Adecanol GT-700” (produced by ADEKA Corporation), which is a PEG-240 / decyltetradeceth-20 / hexamethylene diisocyanate copolymer. “Adecanol GT-700” is a hydrocarbon group in which R ₁ , R ₂ , and R ₄ have 2 carbon atoms, R ₃ has 6 carbon atoms, and R ₅ has 24 carbon atoms in the general formula (1), m = 2, h = 1, k = 120, n = 20.
It is preferable that content of the said hydrophobic modified polyether urethane is 0.01-3.0 mass% with respect to the total amount of the viscous cosmetics in the cosmetics of this invention. When the amount is less than 0.01% by mass, it is difficult to obtain an appropriate viscosity, and it is likely to exude from the net, and when it exceeds 3.0% by mass, the feeling of use such as spreading on the skin may be deteriorated. .

  In addition, the viscosity cosmetic in the cosmetic of the present invention has a viscosity adjusted to 8000 to 20000 mP · s. The viscosity is more preferably 10000 to 20000 mP · s. When the viscosity of the viscous cosmetic is lower than 8000 mP · s, when the viscous cosmetic is taken out by pressing the mesh, the viscous cosmetic exudes from the mesh much more than desired. , It cannot be removed by the applicator and remains on the mesh. The viscous cosmetic material remaining on the mesh body is detached from the mesh body, causing contamination. On the other hand, if the viscosity of the viscous cosmetic material exceeds 20000 mP · s, even if the mesh body is pressed, the desired amount of the viscous cosmetic material does not ooze out on the mesh body and is pressed with a stronger force or pressed for a long time. This causes problems in use. That is, in the cosmetic product of the present invention, an appropriate amount of viscous cosmetic material can be taken out in the above-mentioned wide range of viscosity without stressing the above-mentioned user, and the concern about contamination can be reduced.

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

  Although it does not specifically limit as an example of the viscous cosmetics in the cosmetics of this invention, It is preferable that it is the form of makeup cosmetics, such as a gel-form or cream-like foundation which has viscosity from the form of a container.

  EXAMPLES Hereinafter, the present invention will be specifically described by way of examples, but these do not limit the scope of the present invention.

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

<Removal evaluation>
A sample was prepared by filling 13.5 g of the viscous cosmetic material prepared in the above Examples and Comparative Examples into a container A having a diameter of 5 cm and a depth of 0.8 cm, and covering with a mesh. As the mesh body, two types of mesh body A (opening: about 300 μm) woven with stretchable polyethylene terephthalate fibers and network B (opening: about 20 μm) were used.
Keep the prepared sample horizontally so that the mesh body is facing upward, place a circular filter paper with a diameter of 3 cm on the mesh body, place a 200 g weight on the filter paper, leave it for 5 seconds, and then remove the filter paper and the weight. The weight of the viscous cosmetic material adhering to the filter paper was measured. That is, the amount of viscous cosmetic material taken out when pressing the mesh was measured. The results are shown in Table 1.
In addition, in the table | surface, when the weight was put, since the net body sink | sunk and a lot of viscous cosmetics oozed out, it shows what the viscous cosmetics could not adhere to the filter paper. When a large amount of viscous cosmetic material oozes out, the viscous cosmetic material remains on the mesh and causes contamination.

  As shown in Table 1 above, in Examples 1 and 2, even when the mesh was changed, the removal amount was 0.08 g or more with a wide range of viscosities, which was an appropriate amount. On the other hand, as for the comparative example, all of xanthan gum, carrageenan, sodium carboxymethylcellulose, and carbomer have a viscosity of about 10,000 mP · s, and the viscous cosmetic material oozes out in a large amount. Depending on the body, there was a problem that an appropriate amount of viscous cosmetics could not be taken.

Oil-in-water gel foundation (compounding ingredients) (mass%)
(1) 1,3-butylene glycol 10.0
(2) Hydrophobic modified polyether urethane 1.0
(Product name: Adecanol GT-700 manufactured by ADEKA)
(3) Purified water remaining amount (4) sorbitan stearate 2.0
(5) Decaglyceryl monomyristate 3.0
(6) Polyoxyethylene methyl glucoside 3.0
(7) Methylparaben 0.2
(8) Glyceryl tri-2-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 parts (1) to (7) are dissolved by heating at 70 ° C. or higher to be uniform. On the other hand, the oil phase parts (8) to (17) are heated and dissolved at 70 ° C. or higher and mixed, and then dispersed with a three-roller or the like. Next, the oil phase is added to the water phase while emulsifying with a homomixer while adjusting both the water phase portion and the oil phase portion to 70 to 80 ° C., and then cooled while slowly mixing to room temperature, followed by defoaming treatment.
It was 11000 mP * s when the viscosity of the obtained oil-in-water gel-like foundation was measured.

  The obtained oil-in-water gel foundation was filled in 13.5 g in a container A, and a sample covered with a mesh A was prepared. The above removal evaluation was conducted, and it was 0.082 g, and the removal amount was an appropriate amount. It was.

DESCRIPTION OF SYMBOLS 1 Cosmetics 10 Container 20 Reticulated body 30 Viscous cosmetics

Claims (3)

In cosmetics in which the open portion of the container containing the viscous cosmetic is covered with a mesh, and the viscous cosmetic is taken out via the mesh,
The above-mentioned viscous cosmetic is a cosmetic comprising a hydrophobically modified polyether urethane as a thickener and having a viscosity of 8000 to 20000 mP · s. The hydrophobically modified polyether urethane is represented by the following formula (1):
R ₁ -{(O—R ₂ ) _k —OCONH—R ₃ [—NHCOO— (R ₄ —O) _n —R ₅ ] _h } _m (1)
(Wherein R ₁ , R ₂ and R ₄ represent a hydrocarbon group having 2 to 15 carbon atoms which may be the same as or different from each other, R ₃ represents a hydrocarbon group which may have a urethane bond, R ₅ represents a linear, branched 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. The cosmetic product according to claim 1, wherein the cosmetic product is a compound represented by the formula:   The cosmetic according to claim 1 or 2, wherein the hydrophobically modified polyether urethane is a (PEG-240 / decyltetradecel-20 / HDI) copolymer.

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