KR20200012849A - Finishing cosmetics - Google Patents

Abstract

A finishing cosmetic sprayed in a spray or mist form after applying makeup, which flexibly and firmly covers applied makeup, such as a foundation, and improves makeup retention while improving the makeup texture, thereby preventing secondary adhesion. Provide finishing cosmetics. The present invention relates to a cosmetic for finishing, comprising (A) fine cellulose fibers and (B) a polymer having a film forming ability in an aqueous medium. It is preferable that the cosmetic of this invention contains a porous powder further, and is suitable for spraying and using with a spray etc.

Description

Finishing cosmetics

The present invention relates to a cosmetic for finishing applied to the skin subjected to makeup. More specifically, the present invention relates to a cosmetic for finishing that can prevent makeup collapse and secondary adhesion by spraying in a mist shape onto makeup cosmetics such as a foundation.

It is common to use face powder with a small amount of oil content in the makeup finish. Face powder absorbs sebum and sweat, which helps to maintain foundation and prevents makeup from falling off. It also has the aesthetic effect that the powder diffuses light to make the skin appear three-dimensional. Agglomeration of eye shadows or uneven cheeks can also be resolved by carefully and carefully applying face powder.

Conventional face powder is first applied with a puff, and the excess powder is dropped with a face brush.However, in order to omit such a trouble, a powder-based spray is applied to the face after applying the makeup cosmetics by blending powder in an aqueous volatile solvent. Makeup cosmetics for cosmetics are proposed (patent document 1). However, in the finishing cosmetics which only mix | blended powder, it is difficult to improve makeup retention force and it is also impossible to prevent secondary adhesion.

Similarly, cosmetics for finishing (called finishing mists) of the type sprayed onto the skin after make-up are also commercially available, and makeup is fixed by blending fragrances (rose extracts) and moisturizing ingredients (aloe extracts) to maintain the beauty of the finish for a long time. It is said to be made. However, in view of the blending component, it is speculated that a high inhibitory effect on cosmetic collapse and secondary adhesion cannot be expected.

On the other hand, the makeup surface (also called overcoat) which melt | dissolved the specific resin chosen from fluororesin, silicone resin, aromatic hydrocarbon resin, terpene resin, polybutene, polyisoprene, alkyd resin, and PVP modified polymer in the volatile oil agent is called makeup surface. It is also known to apply | coat to and to coat | cover with the said resin film to prevent color darkening makeup fall and secondary adhesion (patent document 2). However, since the coating film formed from the resin conventionally blended with these cosmetics has a hard and firm texture and insufficient tracking to the movement of the skin, it is not satisfactory in terms of use feeling and effect.

Japanese Patent Publication No. 61-183208 Japanese Patent No. 2602053

Accordingly, the problem in the present invention is a finishing cosmetic sprayed in a spray, aerosol or mist form after applying makeup, which flexibly and firmly covers makeup such as the applied foundation and improves makeup retention power while making the texture of makeup effective. It is to provide a finishing cosmetic that can improve and prevent secondary adhesion.

MEANS TO SOLVE THE PROBLEM As a result of earnestly examining in order to solve the said subject, it turned out that it was made into the low viscosity cosmetics which mix | blended the fine cellulose fiber and the polymer which has a film forming ability, and forms a soft film immediately after spraying with a spray or mist, and forms a foundation. It was found that the makeup can be covered, and that the makeup collapse and secondary adhesion can be suppressed, and the present invention was completed.

That is, this invention provides the finishing cosmetics characterized by containing the polymer which has (A) fine cellulose fiber and (B) film formation ability in an aqueous medium.

In addition, the "cosmetic cosmetics for finishing" in this specification means the cosmetics (also called finish cosmetics) applied on the skin which performed makeup, and it is referred to the "finish makeup cosmetics" and the patent document 2 in the said patent document 1 Although it includes cosmetics called "overcoat", "finishing mist", "after makeup lotion", etc., it is distinguished clearly from the base cosmetics applied to skin directly, and general makeup cosmetics.

In the cosmetic of the present invention, since the blended fine cellulose fibers and the polymer having a film forming ability form a flexible mesh-like coating to cover makeup such as foundation, it is possible to effectively suppress makeup collapse and secondary adhesion while the use wick is good. Can be. In particular, the remarkable effect that a makeup does not adhere to a mask is acquired even if a mask is attached. In addition, since the film to be formed flexibly follows the movement of the skin, there is no film feeling as in the conventional overcoat, and the film is excellent in breathability because the film is mesh-shaped.

(A) fine cellulose fiber

The fine cellulose fibers (component A) blended into the cosmetic of the present invention are nanofibers (microfibrils) made of cellulose derived from plants, and microfibrils are dispersed in substantially one by one (cellulose single nanofibers). (Also called CSNF).

It is known that the fine cellulose fibers (cellulose single nanofibers) have a high thickening effect on water, and, for example, are combined with polyvinylpyrrolidone to form a rigid gel-like and high transparency composition (Japanese Patent). 5243371). Moreover, the effect | action which improves the dispersibility in the water of the powder by which the fine cellulose fiber was surface-hydrophobized was discovered, and the cosmetic composition which mix | blended the fine cellulose fiber and the specific solid which was water-repellent-processed is also known (Japanese Patent No.5626828). report). Such fine cellulose fibers are commercially available from Daiichi Kogyo Co., Ltd. under the trade name of "Leo Crystal". For example, "Leocrystal C-2SP" (brand name) is a product which contains 2 mass% fine cellulose fiber and 1 mass% phenoxy ethanol in 97 mass% of water.

In this invention, the said commercial item (leocrystal) etc. can be used. The detail of the fine cellulose fiber used preferably by this invention is demonstrated below, referring description of Unexamined-Japanese-Patent No. 5243371.

As a fine cellulose fiber (component A) in this invention, it is a cellulose fiber whose largest fiber diameter is 1000 nm or less, and a number average fiber diameter is 2-100 nm, The cellulose has a type I crystal structure, It is preferable that the hydroxyl group at the C6 position of the glucose unit in the molecule is selectively oxidized to be modified to an aldehyde group and a carboxyl group, and the amount of the carboxyl group is in the range of 0.6 to 2.2 mmol / g.

This fine cellulose fiber (A component) is a fiber which surface-oxidized and refine | miniaturized the cellulose solid raw material derived from nature which has an I-type crystal structure. In the process of biosynthesis of natural cellulose, almost without exception, nanofibers called microfibrils are formed first, and they are bundled to form a higher solid structure, but the fine cellulose fibers used in the present invention are microfibrils. In order to weaken the hydrogen bond between the surfaces which is the driving force of the strong cohesion of the liver, a part of the hydroxyl group is oxidized and converted into an aldehyde group and a carboxyl group.

Here, the cellulose which comprises the said fine cellulose fiber (component A) has an I-type crystal structure, For example, in the diffraction profile obtained by wide-angle X-ray-diffraction image measurement, about 2 theta = 14-17 degrees, It can be identified from having a typical peak at two positions near 2 theta = 22 to 23 °.

The fine cellulose fiber (component A) has a maximum fiber diameter of 1000 nm or less, a number average fiber diameter of 2 to 100 nm, a maximum fiber diameter of 500 nm or less, and a number average fiber diameter of 3 from a dispersion stability point. It is preferable that it is -80 nm.

The number average fiber diameter and the largest fiber diameter of the said fine cellulose fiber (A component) can be measured as follows, for example. That is, water is added to a cellulose fiber and let solid content of a cellulose be 1 weight%. This is dispersed using an ultrasonic homogenizer, a high pressure homogenizer, a blender having a capability of 15,000 rpm or more of rotation speed, or the like, and then diluted by adding water, and cast on a hydrophilized carbon film-coated grid. The number average fiber diameter and maximum fiber diameter of a cellulose fiber can be measured and calculated from the image obtained by observing with a transmission electron microscope (TEM) etc ..

In addition, the fine cellulose fiber (component A) has a hydroxyl group at the C6 position of the glucose unit in the cellulose molecule being selectively oxidized to modify an aldehyde group and a carboxyl group, and the amount of carboxyl groups is 0.6 to 2.2 mmol / g. From the point of view, Preferably it is the range of 0.6-2.0 mmol / g.

The fine cellulose fiber (component A) preferably has an aldehyde group in the range of 0.03 to 0.3 mmol / g, particularly preferably in the range of 0.10 to 0.25 mmol / g. The measurement of the amount of carboxyl groups and the amount of aldehyde groups contained in the fine cellulose fibers can be performed by potentiometric titration of water in which fine cellulose fibers are dispersed. See Japanese Patent No. 5243371 for details.

The adjustment of the amount of carboxyl groups and the amount of aldehyde groups in the fine cellulose fibers can be carried out by controlling the addition amount and reaction time of the co-agent used in the oxidation step of the cellulose fibers. In addition, the introduction of the aldehyde group or the carboxyl group to the fine cellulose fiber can be confirmed by total reflection infrared spectroscopy (ATR) analysis. See Japanese Patent No. 5243371 for details.

Although (A) fine cellulose fiber (cellulose single nanofiber) which has the above characteristics is proposed on the basis of the high thickening effect as a wide range of use as a thickener, the knowledge about the film formed by fine cellulose fiber is acquired. There was not. The present invention finds for the first time that a film formed of a cosmetic compound containing fine cellulose fibers and a polymer having a film forming ability is flexible and has good air permeability, and is particularly suitable as a so-called overcoat (finishing cosmetic) for makeup.

(B) a polymer having a film forming ability

The polymer (component B) having the film-forming ability to be blended with the cosmetic of the present invention is not particularly limited as long as it is a film-forming polymer that can be blended into the cosmetic. Preferably, in the present invention, a film-forming polymer that has conventionally been mainly blended in a hair dressing agent as a hair styling agent is used. Specifically, it is a urethane type film formation polymer | macromolecule, an acryl type, and a vinyl film formation polymer | macromolecule as illustrated below.

<Urethane-based film-forming polymer>

As a urethane type film formation polymer, For example, silicone / polyether-type polyurethane resin (Yodosol PUD; Akzo Nobel Co., Ltd.), "Rubyset PUR" (made by BASF), Unexamined-Japanese-Patent No. 2006-213706 The silylated urethane type polymer etc. which were described in the publication are mentioned. As an acryl-urethane type film formation polymer, "DynamX" (made by Akzon Nobel Co., Ltd.) etc. are mentioned, for example.

<Acrylic and vinyl film-forming polymer>

As anionic polymer, For example, alkyl acrylate diacetone acrylamide copolymer [plus size L-53P, plus size L-9909B, plus size L-9948B, etc. (all are manufactured by Kogagaku Kogyo Co., Ltd.)], acrylic acid Alkyl octyl acrylamide copolymer [Dermacryl 79 (made by Akzo Nobel Co., Ltd.)], polyethyleneglycol polypropylene glycol-25 dimethicone acrylate copolymer [Rubiplex SILK (made by BASF Corporation)], acrylic acid, acrylic acid Amide Ethyl Acrylic Copolymer [Ultrahold 8, Ultrahold Strong (all made by BASF)], Alkyl acrylate copolymer [AniJet NF-1000, AniJet HS-3000 etc. (all manufactured by Osaka Yuki Kakaku Kogyo Co., Ltd.) ], And the like.

As cationic polymer, for example, polyquaternium-51 (2-methacryloyloxyethylphosphoryl choline methacrylate butyl copolymer) [LIPIDURE-PMB (Ph10), Nichi Oil Co., Ltd. product], vinyl Pyrrolidone-methacrylate dimethylaminoethyl copolymer diethyl sulfate [HC Polymer 1S (M), H.C. Polymer 2 (above, Osaka Yuki Kagaku Kogyo Co., Ltd.), Gaffquart 755N (ISP Co., Ltd.), vinylpyrrolidone, dimethylaminopropyl methacrylamide, lauryl dimethylaminopropyl methacrylamide copolymer [stylizer W-20 (manufactured by ISP Corporation)], vinylpyrrolidone methacrylate N, N-dimethylaminoethyl acrylate alkyl diacrylate tripropylene glycol copolymer [coscut GA467, coscut GA468 (all Osaka Yuki Kagaku Kogyo Co., Ltd.) (Manufactured by Co., Ltd.)], polydimethyl dimethylmethylene piperidinium [marker 100 (made by Nalco)], dimethyldiallyl ammonium chloride acrylamide copolymer [marker 550 (made by Nalco)], trimethylaminopropyl acrylamide chloride A dimethyl acrylamide copolymer etc. are mentioned.

As a nonionic polymer, for example, polyvinylpyrrolidone (Rubithcol K17, Ruviscol K30, Ruviscol K90 (above, BASF make), PVP K (ISP make)), vinyl acetate vinylpyrrolidone copolymer [PVP / VA S-630, PVP / VA E-735, PVP / VA E-335 (above, ISP company), Ruby call VA73W, Ruby call 37E (above, BASF company make), PVA-6450, AKON M deodorization product (Manufactured by Yuki Kagaku Kogyo Co., Ltd.), vinyl methyl ether maleic acid copolymer [Gantt A-425, Gantt Et ES-225, Gantt Et ES-335 (all made by ISP)], Vinylpyrrole DON methacrylamide vinylimidazole copolymer (Rubiset clear (made by BASF Corporation)) etc. are mentioned.

Examples of the amphoteric polymer include octylic acrylate, hydroxypropylpropyl acrylate, butylaminoethyl methacrylate, methacryloyloxyethylcarboxy betaine, methacrylic acid alkyl copolymer, and dimethyldiallylammonium chloride. The copolymer, the dimethyl diallyl ammonium chloride acrylamide acrylic acid copolymer, etc. are mentioned.

You may mix | blend these polymers 1 type or in combination of 2 or more types, Especially, silicone / polyether-type polyurethane resin, a vinyl acetate vinyl pyrrolidone copolymer, and 2-methacryloyloxy ethylphosphoryl choline It is preferable to mix | blend at least 1 sort (s) chosen from the butyl methacrylate copolymer, especially a silicone / polyether-type polyurethane resin.

The polymer which has a film forming ability may be mix | blended in what form, for example, may be mix | blended in the form of the aqueous solution and aqueous dispersion containing the polymer which has a film forming ability. For example, a form containing 20% by mass of a silicone / polyether-based polyurethane resin and 1% by mass of phenoxyethanol in a medium containing 72% by mass of water and 7% by mass of ethanol (lodosol PUD), lactic acid Water buffered with Na / lactic acid: 1: 1 mixed medium of ethanol (50% by mass of vinyl acetate vinylpyrrolidone copolymer (50% by mass)) (Acon M deodorant), 5% by mass in water 2-methacryloyl oxyethylphosphoryl choline methacrylate butyl copolymer and the form containing 1 mass% phenoxy ethanol (LIPIDURE-PMB (Ph10)) etc. are mentioned.

The cosmetic of this invention is a cosmetic containing the said (A) fine cellulose fiber and the polymer which has (B) film formation ability in an aqueous medium.

The "aqueous medium" in the present invention includes water and an aqueous medium compatible with water. As an aqueous medium compatible with water, C1-C3 lower alcohols, such as ethanol, are mentioned.

As for the compounding quantity of (A) fine cellulose fiber in the cosmetics of this invention, 0.01-1.0 mass% is preferable, More preferably, it is 0.02-0.5 mass%, More preferably, it is 0.03-0.1 mass%. (A) If the compounding quantity of a fine cellulose fiber is less than 0.01 mass%, a desired characteristic will not be acquired, and if it mixes exceeding 1.0 mass%, a viscosity will become high and it will become unsuitable for spray and mist.

0.1-2.0 mass% is preferable, as for the compounding quantity of the polymer which has (B) film formation ability in the cosmetics of this invention, More preferably, it is 0.2-1.0 mass%, More preferably, it is 0.3-0.8 mass%. (B) If the compounding quantity of the polymer which has a film forming ability is less than 0.1 mass%, a desired characteristic will not be acquired, and if it mixes exceeding 2.0 mass%, a viscosity will become high and it will become unsuitable for spray or mist.

Although the compounding quantity of the aqueous medium in the cosmetics of this invention is not specifically limited, Usually, it is 80 mass% or more, Preferably it is 90 mass% or more, More preferably, it is 95 mass% or more.

It is preferable that the cosmetics of this invention contain a porous powder in addition to the said essential component. Examples of the porous powder include porous cellulose powder and porous silica powder, but are not limited to these. In particular, it is preferable to use porous cellulose spherical powder.

As for the compounding quantity at the time of mix | blending a porous powder, 0.05-1.0 mass% is preferable, More preferably, it is 0.1-0.5 mass%, More preferably, it is 0.15-0.4 mass%.

Moreover, it is preferable to mix | blend a clay mineral with the cosmetics of this invention. By mix | blending a clay mineral, the fall of redispersibility by the caking of a powder component can be prevented.

As the clay mineral that can be used in the present invention, for example, bentonite, montmorillonite, jacobonite, nontronite, saponite, hectorite, vermiculite, dagum, silicate, fluorosilicate, magnesium, aluminum, synthetic hectorite ( Natural and synthetic water-swellable clay minerals such as laponite). In addition, organic modified clay minerals in which these clay minerals are treated with a quaternary ammonium salt type cationic surfactant, for example, stearalconium hectorite (benton 27), disteadimonium hectorite (benton 38), or the like can also be used. .

When mix | blending a clay mineral with the cosmetics of this invention, the compounding quantity range is normally 0.01-0.5 mass%, Preferably it is 0.1-0.4 mass%.

The cosmetic of this invention may contain the arbitrary components of that excepting the above in the range which does not impair the effect of this invention. As an optional component, although a moisturizer, surfactant, a buffer, a preservative, a fragrance | flavor, various chemical | medical agents, a propellant, etc. are illustrated, it is not limited to these.

The cosmetic of the present invention is a finishing cosmetic applied to the skin on which makeup has been applied, and what has to be distinguished from the base cosmetic or makeup cosmetic applied directly to the skin has already been described. Therefore, although it is not necessary to include the component normally mix | blended with a base or makeup cosmetics, the cosmetics of this invention may contain those components, for example, powder components, such as a color pigment and a white pigment, etc. as needed.

The cosmetic of the present invention is a cosmetic for finishing applied to makeup skin, and the application method is not particularly limited. For example, it may be applied by applying to an application tool such as a hand or a puff or sprayed in a spray, aerosol or mist shape. Moreover, if the cosmetic of this invention is applied to hair, it can form and protect a film on the hair surface. Therefore, the cosmetic of the present invention can be used not only as a cosmetic for finishing makeup of the skin but also as a hair cosmetic.

When the cosmetic of the present invention is prepared at a low viscosity, it is suitable for spraying into a spray, aerosol or mist shape. The viscosity suitable for spraying in a spray or mist form is about 6 to 8 mPa · s.

(Example)

Although an Example is given to the following and this invention is demonstrated to it in more detail, this invention is not limited at all by these Examples. A compounding quantity is shown by the mass% with respect to the whole composition which the component is mix | blended unless there is particular notice. In addition, the compounding quantity in a table | surface is described with real powder.

The aqueous cosmetics were prepared by the prescription illustrated in the following Tables 1 and 2. About the cosmetics (sample) of each case, the following tests of (1), (2) and (3) were implemented with the following method.

(1) tapping test

Apply 1 mg / cm 2 general foundation on white artificial leather (2.5cm × 2.5cm) for 20 seconds. Then, it dries for 30 minutes at room temperature, and sprays and apply | coats the same amount of each sample twice from the distance of 10 cm. After drying at room temperature for 30 minutes, 10 mg / cm <2> of water or 1 mg / cm <2> of artificial sebum is dripped, and 10 tappings are performed using a tapping tester (N = 3). The makeup collapse suppression function is determined from the degree of the foundation on the artificial leather after tapping.

(2) shear test

Each sample of the same quantity is sprayed 4 times from the distance of 20 cm, and apply | coated to black artificial leather (5 cm x 10 cm). Next, a nonwoven fabric is affixed to the measurement part of a shear tester, and 10 reciprocation measurements are carried out with a weight of 20g. Thereafter, the secondary adhesion suppressing function is determined from the degree of embolism on the nonwoven fabric.

(3) sensory evaluation

After applying a foundation to the face of a subject, each sample of the same quantity is sprayed 4 times and apply | coated on it. The change with time after 4 hours and after 8 hours is visually observed, and it is evaluated whether a makeup collapse or a removal does not occur (N = 3 or more).

·Evaluation standard

The results of the above tests (1) to (3) were evaluated according to the following criteria.

A +: There is very little removal of the foundation on the artificial leather after the end of the test.

A: There is little erase of the foundation on the artificial leather after the end of the test.

B: Reduction of the foundation on the artificial leather after the test is relatively small

C: The foundation on the artificial leather is large after the end of the test.

D: The erasing of the foundation on the artificial leather after the end of the test is very large.

As is apparent from the results shown in Tables 1 and 2, by combining the fine cellulose fibers and the polymer having the film-forming ability in combination, the effect of improving makeup holding power and suppressing secondary adhesion became extremely excellent. Their effect was further improved by adding porous powders.

Another prescription example of the cosmetics of this invention is given to the following.

<Prescription 1>

Finishing cosmetics

Compounding component compounding amount (mass%)

Ion Exchange Water Residue

Ethanol 0.14

Silicone / Polyether Polyurethane Resin 0.4

Fine Cellulose Fibers 0.04

Bentonite 0.2

Phenoxyethanol

Claims (6)

The finishing cosmetics containing the (A) fine cellulose fiber and the polymer which has (B) film formation ability in an aqueous medium. The method of claim 1,
The fine cellulose fibers (A) are cellulose fibers having a maximum fiber diameter of 1000 nm or less and a number average fiber diameter of 2 to 100 nm, wherein the cellulose has a type I crystal structure and a C6 position of a glucose unit in the cellulose molecule. A hydroxyl group of which is selectively oxidized to be modified with an aldehyde group and a carboxyl group, and the amount of the carboxyl group is in the range of 0.6 to 2.2 mmol / g. The method according to claim 1 or 2,
Finishing cosmetics whose said (B) film-forming ability is a silicone / polyether-type polyurethane resin. The method according to any one of claims 1 to 3,
Finishing cosmetic containing a porous powder further. The method according to any one of claims 1 to 4,
A finishing cosmetic containing more clay minerals. The method according to any one of claims 1 to 5,
Finishing cosmetics used by spraying.