Mist cosmetics

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

[Technical Field]

[0001] The present invention relates to a mist cosmetic, and more particularly to a mist cosmetic that imparts a moist feeling, is not sticky, inhibits powder settling, and has good powder redispersibility and mist performance. [Background technology]

[0002] Traditionally, lotions have been used to provide a moisturized feeling to the skin. Methods of using lotions include applying the lotion to the hands and spreading it over the entire face, soaking a cotton ball with an appropriate amount of lotion and spreading it over the entire face, and filling a container such as a dispenser with the lotion and spraying it over the entire face as a mist. Among these methods, mist cosmetics are in high demand because they can be easily and evenly applied.

[0003] On the other hand, lotions are required to have a moisturizing feel and a non-sticky feel when used. 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 makeup removal, which occur when oils are blended. However, when powders are contained in lotions, there is a problem that the powders settle when the lotion is left standing, causing caking at the bottom of the container, making it difficult to easily redisperse.

[0004] Patent Document 1 discloses a skin cosmetic composition that uses powder and that has an excellent moisturizing feel, is non-sticky, and can maintain a uniformly dispersed state of the powder within the skin cosmetic composition by blending one or more types selected from spherical powder, sugar alcohol, carboxyvinyl polymer, and alkyl-modified carboxyvinyl polymer.

[0005] Furthermore, Patent Document 2 discloses a gel-type cosmetic composition that uses powder as a mist cosmetic, and by blending hydrophobic powder, polyoxyethylene alkyl ether-modified acrylic acid copolymer, and cellulose nanofibers, the composition can maintain the hydrophobic powder in a uniformly dispersed state and improve mist performance. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-1225 [Patent Document 2] Japanese Patent Application Laid-Open No. 2017-114768 Summary of the Invention [Problem to be solved by the invention]

[0007] However, although Patent Document 1 uses a thickener that imparts high viscosity to uniformly maintain powder in the skin cosmetic composition, no consideration has been given to using this in mist cosmetics.

[0008] Furthermore, Patent Document 2 examines mist performance when hydrophobic powder is uniformly dispersed, but does not examine the feel of use in terms of moisturizing sensation or stickiness.

[0009] Therefore, an object of the present invention is to provide a mist cosmetic that imparts a moist feeling, is not sticky, inhibits powder settling, and has good powder redispersibility and mist performance. [Means for solving the problem]

[0010] As a result of extensive research, the present inventors have found that the above problems can be solved by using hollow silica as the powder. Specifically, they have found that a mist cosmetic containing (A) hollow silica, (B) an acryloyldimethyltaurate salt copolymer, and (C) trimethylglycine can be provided with a moisturizing feel, is not sticky, inhibits powder settling, and has good powder redispersibility and mist performance, and have completed the present invention. [Effects of the Invention]

[0011] The present invention provides a mist cosmetic that imparts a moist feeling, is not sticky, inhibits powder settling, and has good powder redispersibility and mist performance. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention will be described in detail below. Note that the units indicating the contents are all % by mass unless otherwise specified.

[0013] The present invention contains (A) hollow silica from the viewpoints of non-stickiness, suppression of powder settling, powder redispersibility, and mist performance.

[0014] The component (A) used in the present invention is not particularly limited, but examples thereof include Godball B-6C (manufactured by Suzuki Yushi Kogyo Co., Ltd.) and Godball B-25C (manufactured by Suzuki Yushi Kogyo Co., Ltd.).

[0015] Of the components (A) used in the present invention, Godball B-6C (manufactured by Suzuki Yushi Kogyo Co., Ltd.) is preferred from the viewpoints of non-stickiness, prevention of powder settling, powder redispersibility, and mist performance.

[0016] The content of the 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 even more preferably 0.5 to 5%. If the component (A) is less than 0.1%, stickiness may occur. If the component (A) is more than 5%, a white cast due to the powder may occur.

[0017] The present invention contains (B) an acryloyldimethyltaurine salt copolymer from the viewpoints of suppressing powder settling, improving powder redispersibility, and mist performance.

[0018] The component (B) used in the present invention is not particularly limited, and examples thereof include (ammonium acryloyldimethyltaurate / beheneth-25 methacrylate) crosspolymer, (ammonium acryloyldimethyltaurate / VP) copolymer, (HEA / sodium acryloyldimethyltaurate / steareth-20 methacrylate) copolymer, (acrylamide / sodium acryloyldimethyltaurate / acrylic acid) copolymer, (acrylamide / sodium acryloyldimethyltaurate) copolymer, (sodium acrylate / sodium acryloyldimethyltaurate / acrylamide) copolymer, (sodium acrylate / sodium acryloyldimethyltaurate) copolymer, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, (sodium acryloyldimethyltaurate / PEG-diacrylate ... 8) crosspolymer, (sodium acryloyldimethyltaurate / methacrylamidolauric acid) copolymer, (ammonium acryloyldimethyltaurate / carboxyethylammonium acrylate) crosspolymer, (ammonium acryloyldimethyltaurate / steareth-25 methacrylate) crosspolymer, (ammonium acryloyldimethyltaurate / steareth-8 methacrylate) copolymer, (ammonium acryloyldimethyltaurate / laureth-7 methacrylate) copolymer, (dimethylacrylamide / sodium acryloyldimethyltaurate) crosspolymer, sodium polyacryloyldimethyltaurate, ammonium polyacryloyldimethyltaurate, polyacrylate crosspolymer-6, polyacrylate crosspolymer-11, polyacrylate-13, and the like.

[0019] Of the components (B) used in the present invention, (ammonium acryloyldimethyltaurate / beheneth-25 methacrylate) crosspolymer and (ammonium acryloyldimethyltaurate / VP) copolymer are preferred from the viewpoints of inhibiting powder settling, powder redispersibility, and mist performance.

[0020] The content of the (B) component used in the present invention is not particularly limited, but is preferably 0.05 to 1%, more preferably 0.1 to 0.8%, and even more preferably 0.1 to 0.5%. If the (B) component is less than 0.05%, the powder may settle or redispersibility may be poor. If the (B) component is more than 1%, stickiness may occur or mist performance may be poor.

[0021] The present invention contains (C) trimethylglycine from the viewpoint of moisturizing feeling and non-stickiness.

[0022] 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 even more preferably 0.8 to 2%. If the component (C) is less than 0.1%, there is a risk that the moisturizing feeling will not be obtained or that stickiness will occur. If the component (C) is more than 5%, there is a risk that stickiness will occur.

[0023] In addition to the essential ingredients described above, the mist cosmetic of the present invention can contain at least one selected from various ingredients used in ordinary cosmetics, quasi-drugs, pharmaceuticals, etc., such as powders other than component (A), polymers other than component (B), moisturizers other than component (C), surfactants, oily ingredients, chelating agents, protein derivatives, hydrolyzed proteins, stabilizers, antioxidants, plant extracts, vitamins, preservatives, coloring matter, pigments, ultraviolet absorbers, fragrances, etc., within a range that does not impair the effects, although the ingredients are not limited to these examples.

[0024] The mist cosmetic of the present invention is a two-layer separated mist cosmetic that, when left standing, forms an upper liquid layer and a lower gel layer containing the component (B).

[0025] When the mist cosmetic of the present invention is left standing, it forms a gel-like layer containing the component (B) in the lower layer, and the component (A) is retained in the gel-like layer without settling to the bottom of the container, thereby preventing the settling of the powder and improving the redispersibility of the powder.

[0026] In the present invention, the gel layer in which the component (A) is held within the gel layer of the component (B) when left to stand can be uniformly mixed with the upper liquid layer by shaking during use, thereby improving mist performance.

[0027] In the present invention, "when left standing" refers to the state of the mist cosmetic after storage at room temperature of 20°C for 7 days.

[0028] From the viewpoint of mist performance, the viscosity of the mist cosmetic of the present invention is preferably 200 mPa·s or less at 20°C.

[0029] The viscosity of the mist cosmetic of the present invention at 20°C was measured by filling 120 g of the mist cosmetic obtained by conventional preparation into a 140 g sample bottle (Food 140 (manufactured by Daiichi Glass Co., Ltd.)), leaving it to stand at 20°C for one day to adjust the temperature, and shaking to uniformly disperse the powder, followed by measurement using a B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with a No. 1 rotor for one minute at a rotation speed of 30 rpm or 12 rpm.

[0030] The pH of the mist cosmetic of the present invention is preferably 4 to 9 at 20°C from the viewpoint of viscosity stability.

[0031] The pH of the mist cosmetic of the present invention at 20°C was measured by leaving the mist cosmetic prepared by a conventional method at 20°C for one day, adjusting the temperature, shaking, and dispersing the powder uniformly, and then measuring the pH using a glass electrode hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

[0032] The mist cosmetic of the present invention is prepared by filling a container with lotion, and using the container, the lotion is sprayed in mist form using a pump dispenser or a trigger dispenser.

[0033] The pump dispenser used in the present invention is not particularly limited, but for example, Y-150 (manufactured by Yoshino Kogyosho Co., Ltd.) can be used.

[0034] 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. [Example]

[0035] The present invention will be described in more detail below with reference to examples, but these examples are not intended to limit the present invention in any way.

[0036] In the evaluation tests described herein, the components contained in the mist cosmetic preparations and their contents were varied. The units used to indicate the contents of each component are all % by mass, and the preparations were carried out using standard methods.

[0037] In the evaluation test methods shown in this specification, "state when left standing," "moisturizing feeling," "non-stickiness," "inhibition of powder settling," "powder redispersibility," and "mist performance" were evaluated by the following methods.

[0038] "Static state" An evaluation test was conducted on the state of the mist cosmetics obtained in the Examples and Comparative Examples when left to stand. In the evaluation test, 70 mL of the mist cosmetics obtained in the Examples and Comparative Examples were filled into a 100 mL PET container (PEPI-100, manufactured by Takemoto Container Co., Ltd.), and stored at room temperature of 20°C for 7 days, and the state of the mist cosmetics was evaluated by visual observation. <Evaluation criteria> Two-layer: A mist cosmetic product made up of two layers: a liquid layer and a gel-like layer containing powder. Single layer (powder): A mist cosmetic product formed from a single layer of powder evenly dispersed in a gel-like layer. Single layer (liquid): A mist cosmetic product formed by a single layer of powder settling into a liquid layer at a height of less than 1 cm from the bottom of the container.

[0039] "Moisturizing feeling" The moisturizing sensation of the mist cosmetics obtained in the Examples and Comparative Examples was evaluated by a panel of 15 experts. The evaluation test involved filling 70 mL of the mist cosmetics obtained in the Examples and Comparative Examples, adjusted to 20°C, into a 100 mL PET container (PEPI-100, manufactured by Takemoto Container Co., Ltd.), shaking to uniformly disperse the powder, and then spraying 0.6 mL of the mist cosmetic evenly over the entire face using a pump dispenser (Y-150, manufactured by Yoshino Kogyosho Co., Ltd.) at room temperature of 20°C and humidity of 60%, and evaluating the moisturizing sensation via sensory testing. <Evaluation criteria> 5: More than 13 out of 15 people felt that it was moisturizing. 4: Between 10 and 12 out of 15 people felt that it was moisturizing. 3: Between 7 and 9 out of 15 people felt that it was moisturizing. 2: Between 4 and 6 out of 15 people felt that it was moisturizing. 1: Fewer than 3 out of 15 people felt it was moisturizing.

[0040] "Non-sticky" A panel of 15 experts evaluated the non-stickiness of the mist cosmetics obtained in the Examples and Comparative Examples. 70 mL of each mist cosmetic obtained in the Examples and Comparative Examples, adjusted to 20°C, was filled into a 100 mL PET container (PEPI-100, manufactured by Takemoto Container Co., Ltd.), shaken to uniformly disperse the powder, and then 0.6 mL of the mist cosmetic was sprayed evenly over the entire face using a pump dispenser (Y-150, manufactured by Yoshino Kogyosho Co., Ltd.) at room temperature of 20°C and humidity of 60%, and the non-stickiness was evaluated sensorily. <Evaluation criteria> 5: More than 13 out of 15 people did not feel sticky. 4: Of the 15 people, between 10 and 12 did not feel sticky. 3: Between 7 and 9 out of 15 people did not feel sticky. 2: Between 4 and 6 out of 15 people did not feel sticky. 1: Fewer than 3 out of 15 people felt it was sticky.

[0041] "Preventing powder settling" An evaluation test was conducted to evaluate the ability of the mist cosmetics obtained in the Examples and Comparative Examples to inhibit powder settling. In the evaluation test, 70 mL of each of the mist cosmetics obtained in the Examples and Comparative Examples was filled into a 100 mL PET container (PEPI-100, manufactured by Takemoto Container Co., Ltd.), and stored at room temperature of 20°C for 7 days, after which the height of the gel layer containing the powder of the mist cosmetic was measured. <Evaluation criteria> ◎: The height of the gel layer containing the powder is 1.5 cm or more. ○: The height of the gel layer containing the powder is 1 cm or more and less than 1.5 cm. ×: The height of the gel layer containing the powder is less than 1 cm.

[0042] "Powder redispersibility" An evaluation test was conducted to evaluate the redispersibility of the powder in the mist cosmetics obtained in the Examples and Comparative Examples. In the evaluation test, 70 mL of the mist cosmetics obtained in the Examples and Comparative Examples was filled into a 100 mL PET container (PEPI-100, manufactured by Takemoto Container Co., Ltd.), stored at room temperature of 20°C for 7 days, and then shaken at an amplitude of 30 cm at 1 stroke per second, and the redispersibility of the powder was evaluated by visual observation. ◎: The powder was redispersed after shaking 5 times or less. ○: The powder was redispersed after shaking 6 or more times but less than 20 times. ×: The powder was redispersed after shaking 20 times or more.

[0043] "Mist performance" An evaluation test was conducted on the mist performance of the mist cosmetics obtained in the Examples and Comparative Examples. In the evaluation test, 70 mL of the mist cosmetics obtained in the Examples and Comparative Examples was filled into a 100 mL PET container (PEPI-100, manufactured by Takemoto Container Co., Ltd.), shaken to uniformly disperse the powder, and then sprayed onto a vertically placed plastic plate from a distance of 15 cm using a pump dispenser (Y-150, manufactured by Yoshino Kogyosho Co., Ltd.), and the spread of the mist was confirmed. <Evaluation criteria> ◎: Mist-like droplets spread evenly over a diameter of 15 cm or more. ○: Mist-like droplets spread evenly to a diameter of 10 cm or more but less than 15 cm. ×: The mist droplets did not spread uniformly over 10 cm or more.

[0044] [Table 1]

[0045] [Table 2]

[0046] [Table 3]

[0047] Examples 1 to 17 shown in Tables 1 to 3 showed good results in terms of moist feeling, non-stickiness, suppression of powder settling, powder redispersibility, and mist performance.

[0048] Example 18 of the mist cosmetic is described below.

[0049] The mist cosmetic obtained in Example 18 exhibited good results in terms of moisturizing feeling, non-stickiness, suppression of powder settling, powder redispersibility, and mist performance.

[0050] Example 18 Component Content (mass%) (A) Hollow silica*1 0.80 (B) (Ammonium acryloyldimethyltaurate) / 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 Fragrance 0.35 Peppermint oil 0.10 Polyoxyethylene Polyoxypropylene Decyl tetradecyl 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 Industries Co., Ltd.) *4: ARISTOFLEX HMB (manufactured by Clariant Japan Co., Ltd.) *5: Amino Coat (manufactured by Asahi Kasei Finechem Co., Ltd.) [Industrial Applicability]

[0051] According to the present invention, it is possible to obtain a mist cosmetic that imparts a moist feeling, is not sticky, inhibits powder settling, and has good powder redispersibility and mist performance.

Claims

1. (A) Hollow silica (B) Acryloyldimethyltaurine salt copolymer (C) Trimethylglycine wherein the content of the component (A) is 0.1 to 5 mass%, the content of the component (B) is 0.05 to 1 mass%, and the content of the component (C) is 0.1 to 5 mass%, and the viscosity at 20°C is 1 to 180 mPa s.

2. 2. The mist cosmetic according to claim 1, wherein the component (B) is at least one selected from the group consisting of ammonium acryloyldimethyltaurate / beheneth-25 methacrylate crosspolymer and ammonium acryloyldimethyltaurate / VP copolymer.

3. 3. The mist cosmetic according to claim 1, wherein the mist cosmetic separates into two layers when left standing.

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