JP2023062723A - mist cosmetics - Google Patents

Abstract

To provide mist cosmetics that give a moist feeling, do not cause stickiness, suppress sedimentation of powder, and excel in powder redispersion and mist performance.SOLUTION: Mist cosmetics comprise (A) hollow silica, (B) an acryloyl dimethyl taurate copolymer, and (C) trimethylglycine. Such mist cosmetics give a moist feeling, do not cause stickiness, suppress sedimentation of powder, and excel in powder redispersion and mist performance.SELECTED DRAWING: None

Description

The present invention relates to a cosmetic mist, and more particularly to a cosmetic mist that imparts a moist feeling, is non-sticky, suppresses sedimentation of powder, and has good powder redispersibility and mist performance.

BACKGROUND ART Conventionally, lotions have been used for the purpose of imparting moisture to the skin. There are several ways to use the lotion: take the lotion on your hands and apply it all over your face, soak a cotton pad with an appropriate amount of lotion and apply it all over your face, or fill a container such as a dispenser with the lotion and use it as a cosmetic mist. There is also a method of spraying the entire face. Among these usage methods, mist cosmetics are in demand because they can be applied easily and uniformly.

On the other hand, skin lotions are required to have a non-sticky feel in addition to a moisturizing feel. Conventionally, oils such as silicones and esters, and powders such as silica and cellulose have been used to suppress the stickiness of lotions. Among these, powders are preferred because they do not cause shine or make-up removal that occurs when oil agents are blended. However, when the lotion contains powder, there is a problem that the powder settles when the lotion is allowed to stand, causing caking at the bottom of the container, and cannot be easily redispersed.

In Patent Document 1, as a cosmetic using powder, by blending one or more selected from spherical powder, sugar alcohol, carboxyvinyl polymer and alkyl-modified carboxyvinyl polymer, excellent moist feeling and non-stickiness are obtained. Disclosed is a skin cosmetic composition capable of maintaining a state in which the powder is uniformly dispersed in the skin cosmetic composition without the need for powder.

In addition, in patent document 2, as a mist cosmetic using powder, hydrophobic powder is uniformly mixed by blending hydrophobic powder, polyoxyethylene alkyl ether-modified acrylic acid-based copolymer, and cellulose nanofiber. Disclosed is a gel cosmetic that can maintain a dispersed state and improve mist performance.

JP 2010-1225 A JP 2017-114768 A

However, although Patent Document 1 uses a thickener that imparts high viscosity to uniformly retain the powder in the skin cosmetic composition, no study has been made on its use in mist cosmetics.

Further, in Patent Document 2, the mist performance in a state in which the hydrophobic powder is uniformly dispersed is studied, but the moist feeling and stickiness during use are not studied.

Accordingly, an object of the present invention is to provide a mist cosmetic that imparts a moist feeling, is not sticky, suppresses sedimentation of powder, and has good powder redispersibility and mist performance.

As a result of intensive studies, the inventors have found that the above problem can be solved by using hollow silica as the powder. Specifically, (A) hollow silica, (B) acryloyldimethyltaurate copolymer, and (C) trimethylglycine-containing cosmetic mist that imparts a moist feeling, is not sticky, and suppresses sedimentation of powder, The present inventors have found that a mist cosmetic having good powder redispersibility and mist performance can be obtained, and have completed the present invention.

To provide a mist cosmetic that imparts a moist feeling, is not sticky, suppresses sedimentation of powder, and has good powder redispersibility and mist performance.

The present invention will be described in detail below. In addition, all the units which show content are the mass % unless otherwise specified.

The present invention contains (A) hollow silica from the viewpoints of non-stickiness, powder sedimentation suppression, powder redispersibility and mist performance.

The component (A) used in the present invention is not particularly limited. be done.

Among the components (A) used in the present invention, Godball B-6C (manufactured by Suzuki Yushi Kogyo Co., Ltd.) is selected from the viewpoint of non-stickiness, suppression of powder sedimentation, powder redispersibility and mist performance. preferable.

The content of component (A) used in the present invention is not particularly limited, but is preferably 0.1 to 5%, more preferably 0.3 to 5%, and still more preferably 0.5 to 5%. . If the content of component (A) is less than 0.1%, stickiness may occur. If the content of component (A) exceeds 5%, whitening may occur due to powder.

The present invention contains (B) an acryloyldimethyltaurate salt copolymer from the viewpoint of powder sedimentation suppression, powder redispersibility and mist performance.

The component (B) used in the present invention is not particularly limited. Na taurine/steareth-20 methacrylate) copolymer, (acrylamide/Na acryloyl dimethyl taurate/acrylic acid) copolymer, (acrylamide/Na acryloyl dimethyl taurate) copolymer, (Na acrylate/Na acryloyl dimethyl taurate/acrylamide) copolymer, (Acrylic Acid Na/Acryloyldimethyltaurate Na) Copolymer, (Hydroxyethyl Acrylate/Acryloyldimethyltaurate Na) Copolymer, (Acryloyldimethyltaurate Na/Diacrylate Na/PEG-8 Diacrylate) Crosspolymer, (Acryloyldimethyltaurate Na/Methacrylamide Lauric Acid) Copolymer , (acryloyldimethyltaurate ammonium/carboxyethylammonium acrylate) crosspolymer, (acryloyldimethyltaurate ammonium/steareth-25 methacrylate) crosspolymer, (acryloyldimethyltaurate ammonium/steareth-8 methacrylate) copolymer, (acryloyldimethyltaurate ammonium) / laureth methacrylate-7) copolymer, (dimethylacrylamide / acryloyldimethyltaurate Na) crosspolymer, polyacryloyldimethyltaurate Na, polyacryloyldimethyltaurate ammonium, polyacrylate crosspolymer-6, polyacrylate crosspolymer-11, polyacrylate- 13 and the like.

Among the components (B) used in the present invention, from the viewpoint of powder sedimentation suppression, powder redispersibility and mist performance, (acryloyldimethyltaurate ammonium/beheneth-25 methacrylate) crosspolymer, (acryloyldimethyl Ammonium taurine/VP) copolymers are preferred.

The content of component (B) used in the present invention is not particularly limited, but is preferably 0.05 to 1%, more preferably 0.1 to 0.8%, still more preferably 0.1 to 0.8%. 5% is good. If the content of the component (B) is less than 0.05%, there is a risk that the powder will settle and the redispersibility will be poor. If the content of component (B) exceeds 1%, stickiness may occur and mist performance may deteriorate.

The present invention contains (C) trimethylglycine from the viewpoint of moist feeling and non-stickiness.

The content of the component (C) used in the present invention is not particularly limited, but is preferably 0.1 to 5%, more preferably 0.5 to 3%, and still more preferably 0.8 to 2%. . If the content of the component (C) is less than 0.1%, there is a risk that a moist feeling cannot be obtained or that stickiness may occur. If the component (C) exceeds 5%, stickiness may occur.

In addition to the above essential ingredients, the mist cosmetic of the present invention contains various ingredients used in ordinary cosmetics, quasi-drugs, pharmaceuticals, etc., such as powders other than the above component (A) and components other than the above component (B). polymer, moisturizing agents other than the component (C), surfactants, oily components, chelating agents, protein derivatives, hydrolyzed proteins, stabilizers, antioxidants, vegetable extracts, vitamins, preservatives, At least one selected from dyes, pigments, ultraviolet absorbers, perfumes, etc. may be contained within a range that does not impair the effect. However, it is not limited to these examples.

The cosmetic mist of the present invention is a two-layer separation type cosmetic mist that forms an upper liquid layer and a lower gel layer containing the component (B) when left at rest.

The mist cosmetic of the present invention forms a gel-like layer containing the component (B) in the lower layer when it is left still, so that the component (A) does not settle to the bottom of the container and remains in the gel-like layer. By being retained, the sedimentation suppression of the powder and the redispersibility of the powder can be improved.

The gel layer of the present invention, in which the component (A) is retained in the gel layer of the component (B) when left at rest, can be uniformly mixed with the upper liquid layer by shaking at the time of use. Therefore, the mist performance can be improved.

In the present invention, the time of standing means the state of the mist cosmetic after storage for 7 days at room temperature of 20°C.

The viscosity of the mist cosmetic in the present invention is preferably 200 mPa·s or less at 20° C. from the viewpoint of mist performance.

The viscosity of the cosmetic mist of the present invention at 20° C. is measured by filling 120 g of the cosmetic mist obtained by a conventional method into a 140 g sample bottle (Food 140 (manufactured by Daiichi Glass Co., Ltd.)). Then, after standing at 20 ° C. for 1 day, adjusting the temperature, shaking, and uniformly dispersing the powder, a B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) No. 1 rotor for 1 minute at a rotation speed of 30 rpm or 12 rpm.

From the viewpoint of viscosity stability, the pH of the cosmetic mist in the present invention is preferably 4 to 9 at 20°C.

The pH of the mist cosmetic composition of the present invention at 20°C is determined by allowing the mist cosmetic composition obtained by a conventional method to stand still at 20°C for 1 day, adjusting the temperature, and shaking to homogenize the powder. , and then measured with a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

The mist cosmetic of the present invention is used by filling a container with lotion and spraying the lotion in the form of a mist with a pump-type dispenser or a trigger-type dispenser.

Although the pump-type dispenser used in the present invention is not particularly limited, for example, Y-150 (manufactured by Yoshino Kogyosho Co., Ltd.) can be used.

The trigger-type dispenser used in the present invention is not particularly limited, but for example, Z-305-101 (manufactured by Mitani Valve Co., Ltd.) can be used.

EXAMPLES The present invention will be described in more detail below with reference to examples, but these are not intended to limit the present invention in any way.

In the evaluation tests shown in this specification, the components contained in the mist cosmetics and their contents were variously changed. All the units indicating the content of each component are % by mass, and were prepared by a conventional method.

In the evaluation test methods shown in this specification, "state when standing", "moisturizing feeling", "non-stickiness", "powder sedimentation suppression", "powder redispersibility" and "mist performance" was evaluated by the following method.

"Standing state"
An evaluation test was conducted on the state of the mist cosmetics obtained in Examples and Comparative Examples when they were left standing. In the evaluation test, 70 mL of the mist cosmetics obtained in Examples and Comparative Examples were filled in a 100 mL PET container (PEPI-100 (manufactured by Takemoto Yoki Co., Ltd.)) and stored at room temperature of 20 ° C. for 7 days. The state of the mist cosmetic was evaluated by visual observation.
<Evaluation Criteria>
Double layer: A mist cosmetic that consists of two layers: a liquid layer and a gel layer containing powder.
One layer (powder): A mist cosmetic composed of a single layer in which powder is uniformly dispersed in a gel-like layer.
One layer (liquid): A mist cosmetic composed of a single layer in which powder settles in a liquid layer at a height of less than 1 cm from the bottom of the container.

"Moisturizing feeling"
An evaluation test was conducted by 15 expert panelists on the moist feeling of the cosmetic mists obtained in Examples and Comparative Examples. In the evaluation test, 70 mL of the mist cosmetics obtained in Examples and Comparative Examples adjusted to 20 ° C. were filled in a 100 mL PET container (PEPI-100 (manufactured by Takemoto Yoki Co., Ltd.)), shaken, and powdered. After uniformly dispersing, 0.6 mL of the mist cosmetic is applied to the entire face using a pump dispenser (Y-150 (manufactured by Yoshino Kogyosho Co., Ltd.)) under the conditions of room temperature 20 ° C. and humidity 60%. After spraying, the moist feeling was evaluated sensory.
<Evaluation Criteria>
5:13 or more out of 15 people felt that the product had a moisturizing effect.
4: 10 or more and 12 or less out of 15 people felt that the product had a moisturizing effect.
3: 7 or more and 9 or less out of 15 people felt that the product had a moisturizing effect.
2: 4 or more and 6 or less out of 15 people felt that the product had a moisturizing effect.
1: 3 or less out of 15 people felt that the product had a moisturizing effect.

"No stickiness"
An evaluation test was conducted by 15 expert panelists on the non-stickiness of the cosmetic mists obtained in Examples and Comparative Examples. In the evaluation test, 70 mL of the mist cosmetics obtained in Examples and Comparative Examples adjusted to 20 ° C. were filled in a 100 mL PET container (PEPI-100 (manufactured by Takemoto Yoki Co., Ltd.)), shaken, and powdered. After uniformly dispersing, 0.6 mL of the mist cosmetic is sprayed evenly over the entire face using a pump dispenser (Y-150 (manufactured by Yoshino Kogyosho Co., Ltd.)) under the conditions of room temperature 20 ° C. and humidity 60%. Then, the lack of stickiness was evaluated sensory.
<Evaluation Criteria>
5: 13 or more out of 15 people did not feel stickiness.
4: 10 or more and 12 or less out of 15 people did not feel stickiness.
3: 7 or more and 9 or less out of 15 people did not feel stickiness.
2: 4 or more and 6 or less out of 15 people did not feel stickiness.
1: 3 or less out of 15 people did not feel stickiness.

"Suppression of powder sedimentation"
A sedimentation suppression evaluation test of the mist cosmetic powders obtained in Examples and Comparative Examples was conducted. In the evaluation test, 70 mL of the mist cosmetics obtained in Examples and Comparative Examples were filled in a 100 mL PET container (PEPI-100 (manufactured by Takemoto Yoki Co., Ltd.)) and stored at room temperature of 20 ° C. for 7 days. The height of the gel layer containing the mist cosmetic powder was measured.
<Evaluation Criteria>
A: The height of the gel-like layer containing the powder is 1.5 cm or more.
◯: The height of the gel-like layer containing the powder is 1 cm or more and less than 1.5 cm.
x: The height of the gel-like layer containing powder is less than 1 cm.

"Powder redispersibility"
A redispersibility evaluation test was conducted for the powders of the cosmetic mists obtained in Examples and Comparative Examples. In the evaluation test, 70 mL of the mist cosmetics obtained in Examples and Comparative Examples were filled in a 100 mL PET container (PEPI-100 (manufactured by Takemoto Yoki Co., Ltd.)) and stored at room temperature of 20 ° C. for 7 days. The redispersibility of the powder when shaken under conditions of a swing width of 30 cm and 1 reciprocation/second was evaluated by visual observation.
A: The powder was redispersed by shaking 5 times or less.
○: The powder was re-dispersed by shaking 6 times or more and less than 20 times.
x: The powder was re-dispersed by shaking 20 times or more.

"Mist performance"
A mist performance evaluation test was conducted for the mist cosmetics obtained in Examples and Comparative Examples. In the evaluation test, 70 mL of the mist cosmetics obtained in Examples and Comparative Examples were filled in a 100 mL PET container (PEPI-100 (manufactured by Takemoto Yoki Co., Ltd.)) and shaken to uniformly disperse the powder. Using a pump-type dispenser (Y-150 (manufactured by Yoshino Kogyo Co., Ltd.)), spray was applied to a vertically upright plastic plate at a distance of 15 cm, and the spread of the mist was confirmed.
<Evaluation Criteria>
⊚: Atomized droplets spread uniformly over a diameter of 15 cm or more.
○: Atomized droplets spread uniformly over a diameter of 10 cm or more and less than 15 cm.
x: Atomized droplets did not spread uniformly over 10 cm.

From Examples 1 to 17 shown in Tables 1 to 3, good results were obtained in terms of moist feeling, non-stickiness, sedimentation suppression of powder, redispersibility of powder, and mist performance.

Example 18 of the mist cosmetic is described below.

The mist cosmetic obtained in Example 18 gave good results in terms of moist feeling, non-stickiness, sedimentation inhibition of powder, redispersibility of powder, and mist performance.

<Example 18>
Ingredient Content (% by mass)
(A) Hollow silica *1 0.80
(B) (acryloyldimethyltaurate ammonium/beheneth-25 methacrylate) crosspolymer *4 0.20
(C) Trimethylglycine *5 1.00
Sodium citrate 0.10
Disodium edetate 0.10
Sodium benzoate 0.30
1,3-butylene glycol 2.00
Dipropylene glycol 2.00
Citric acid 0.20
Perfume 0.35
Peppermint oil 0.10
Polyoxyethylene polyoxypropylene decyltetradecyl ether (13P.O.) (24E.O.) 1.00
Ethanol 20.00
Aloe extract (2) 0.01
Peony extract 0.01
Artichoke leaf extract 0.01
Coix seed extract 0.01
Evening primrose seed extract 0.01
Lemongrass leaf/stem extract 0.01
Purified water 71.79
Total 100.00
*1: God Ball B-6C (manufactured by Suzuki Oil Industry Co., Ltd.)
*4: ARISTOFLEX HMB (manufactured by Clariant Japan Co., Ltd.)
*5: Amino Coat (manufactured by Asahi Kasei Finechem Co., Ltd.)

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to obtain a cosmetic mist that imparts a moist feeling, is non-sticky, suppresses powder sedimentation, and has good powder redispersibility and mist performance.

Claims (6)

A mist cosmetic containing (A) hollow silica (B) acryloyldimethyltaurate copolymer (C) trimethylglycine. The cosmetic mist according to claim 1, wherein the content of component (A) is 0.1 to 5% by mass. The cosmetic mist according to claim 1 or 2, wherein the component (B) is one or more selected from (ammonium acryloyldimethyltaurate/beheneth-25 methacrylate) crosspolymer or (ammonium acryloyldimethyltaurate/VP) copolymer. fee. The cosmetic mist according to any one of claims 1 to 3, wherein the content of component (B) is 0.05 to 1% by mass. The cosmetic mist according to any one of claims 1 to 4, wherein the cosmetic mist is of a two-layer separation type when left standing. The cosmetic mist according to any one of claims 1 to 5, wherein the cosmetic mist has a viscosity at 20°C of 200 mPa·s or less.