HK1228781B - Stick-shaped cosmetic for moisture replenishment - Google Patents

Abstract

The purpose of the present invention is to provide a rod-shaped cosmetic product with a new function of moisturizing and hydrating during the day. The present invention relates to a rod-shaped cosmetic for moisturizing and hydrating, comprising: (A) 0.01~50% by mass of volatile flowing oil; (B) More than 10% by mass of water; (C) Wax capable of segregating the volatile flowing oil; (D) Silicone elastomer; And (E) siloxane based surfactants. The preferred cosmetic of the present invention also contains (F) moisturizing agent. The cosmetic of the present invention is a rod-shaped product with excellent portability, suitable for use as a touch up.

Description

Stick-like cosmetic for moisturizing

Technical Field

The present invention relates to a stick cosmetic which can be used for moisturizing skin. More specifically, the present invention relates to: a stick-shaped cosmetic which is easy to carry, has a moisturizing function to the skin, and has excellent shape stability. The cosmetic of the present invention is suitable for makeup of makeup (make-up) such as foundation for makeup removal, and is particularly suitable for makeup outdoors in addition to its portability.

Background

The basic functions of skin care cosmetics are to maintain the moisture of the skin and to maintain the barrier function of protecting the skin from various irritations. However, the phenomenon of dry skin cannot be avoided due to the influence of air conditioning in winter and summer when the dry weather continues.

As means for moisturizing dry skin, there are known: spray cosmetics are used. The spray cosmetic can be easily moisturized by spraying the dried skin. However, since the liquid cosmetic contains a sprayable liquid cosmetic, a container for storing the cosmetic is necessary, and portability may be poor. In addition, although there are spray cosmetics stored in small containers for carrying, the amount of oil, particularly solid oil, to be blended is limited in order to avoid clogging of the spray and an obstruction of extraction by a dispenser due to an increase in viscosity, and as a result, the durability of the moisturizing effect is limited. Further, since the liquid form is liable to fall off the skin, it is difficult to sufficiently apply the liquid form by repelling water from the oily powder base, and there is a problem that a sufficient moisturizing effect cannot be obtained.

On the other hand, since the stick-shaped cosmetic is solid, it can be miniaturized and is portable. Currently, stick foundations are most commonly used as stick cosmetics suitable for skin.

Stick cosmetics (without using fingers) are directly applied to the skin, and therefore, smooth extension and appropriate hardness at the time of application are required. If the hardness is too low, the coating may be broken, and if the hardness is too high, the coating may be difficult due to poor elongation. In addition, it is necessary to provide stability such that the composition and shape do not change with time.

Patent document 1 describes that a hydrocarbon wax, which has been conventionally used as a solid oil required for solidification of a water-in-oil stick cosmetic, is insufficient in "soft feeling on skin contact", and that: a stick cosmetic which is blended with hydrogenated jojoba oil and gives a soft touch feeling upon application. Patent document 2 describes: a stick-shaped cosmetic which can stably contain ascorbyl glucoside as a whitening agent and has excellent storage stability such as shape and use feeling. Presume that: in particular, when a predetermined amount of a hydrocarbon wax including polyethylene wax is blended, the feeling of use and the storage stability are improved.

In addition, cosmetics having various functions added to stick-shaped cosmetics have been studied, and for example, patent document 3 describes: patent document 4 describes a stick-type emulsion cosmetic that does not decrease in stability and strength even when an ultraviolet scattering agent is blended at a high level, and that: a nonaqueous stick cosmetic having a cleansing function of makeup.

However, a water-in-oil emulsion stick cosmetic, a cosmetic having a moisturizing function on the skin such as a spray cosmetic, and a cosmetic usable for makeup have not been known so far.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2002-53425

Patent document 2: japanese laid-open patent publication No. 2010-285349

Patent document 3: japanese patent laid-open publication No. 2013-139403

Patent document 4: japanese patent laid-open No. 2003-342163

Disclosure of Invention

Problems to be solved by the invention

Accordingly, an object of the present invention is to provide: a stick cosmetic which is stick-shaped, can moisturize and moisturize in daytime, and has a novel function of makeup.

Means for solving the problems

In order to solve the above problems, the present inventors have conducted extensive studies and, as a result, have found that: the present inventors have completed the present invention by forming a water-in-oil emulsion containing a volatile mobile oil component, a wax capable of gelling the oil component, a silicone elastomer and a silicone surfactant, and a large amount of water as compared with a conventional stick cosmetic, and thereby obtaining a stick cosmetic which can be applied to the skin to supplement water and moisturize the skin.

That is, the present invention provides a stick cosmetic for moisturizing, which contains:

(A)0.01 to 50 mass% of a volatile mobile oil component;

(B) 10% by mass or more of water;

(C) a wax capable of gelling the volatile mobile oil;

(D) a silicone elastomer; and

(E) a silicone surfactant.

ADVANTAGEOUS EFFECTS OF INVENTION

One of the characteristics of the cosmetic of the present invention is that it is a rod-like water-in-oil type emulsion cosmetic and contains a large amount of water. In particular, since the stick-shaped product can be applied directly to the skin, the emulsified state is broken by friction during application, and water in the inner phase overflows, so that a very delicate, refreshing and cooling feeling can be imparted. In general, in order to obtain a cool feeling, it is necessary to blend a cool feeling component such as ethanol or menthol in a cosmetic, but since an ideal cool feeling can be obtained without blending such a cool feeling component in the cosmetic of the present invention, problems such as odor and irritation due to the cool feeling component do not occur. Further, since a volatile liquid oil component is blended, a feeling of oil film (greasy feeling) is not imparted. Further, by blending a silicone elastomer, the "thinning" of the rod is suppressed, and the shape stability is excellent.

The cosmetic of the present invention is a stick-shaped cosmetic excellent in portability and has the above-described characteristics, and therefore, is also suitable for makeup application for easily repairing and removing makeup outdoors or the like.

Detailed Description

Hereinafter, the "stick cosmetic for moisturizing" (hereinafter, also simply referred to as "cosmetic") of the present invention will be described in detail.

The cosmetic of the present invention contains (A) a volatile mobile oil component.

The "volatile mobile oil component" in the present specification is a liquid oil component having fluidity at room temperature (25 ℃), and refers to an oil component containing a volatile (low boiling point at a boiling point of 260 ℃ or lower at normal pressure), a hydrocarbon oil and a silicone oil (for example, a cyclic silicone oil), and a linear or branched silicone oil having a low viscosity (10cs or lower, preferably 5cs or lower). These volatile mobile oil components can be mixed with 1 or more than 2 kinds of mixture form.

The volatile hydrocarbon oil is preferably a low boiling isoparaffin hydrocarbon oil, and specific examples thereof include: isododecane, isohexadecane, and the like.

The volatile or low-viscosity silicone oil contains: cyclic dimethylpolysiloxane having 4 to 6 silicon atoms, chain dimethylpolysiloxane having 2 to 5 silicon atoms. Specific examples thereof include: cyclic silicone oils such as hexamethylcyclotrisiloxane (D3), octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), and dodecamethylcyclohexasiloxane (D6), diphenylsiloxyphenyltrimethicones, and polydimethylsiloxanes (10cs, 6cs, 5cs, 2cs, or 1.5 cs).

The amount of the volatile mobile oil component (A) in the cosmetic composition of the present invention is 0.01 to 50% by mass, preferably 1 to 35% by mass, and more preferably 5 to 20% by mass. When the amount is less than 0.01% by mass, stickiness, glare and peeling of foundation are caused, and when the amount is more than 50% by mass, smooth extension is lost, and the stick is likely to be damaged or broken. In addition, the tenderness of the paint is lost.

The cosmetic of the present invention is a water-in-oil type emulsion cosmetic containing (B) water as an internal phase.

In the stick-shaped water-in-oil type emulsion cosmetic described in patent document 1, since the more the amount of water is blended, the more the spreading becomes thick, the amount of water blended is preferably 25 mass% or less (see paragraph 0024). However, in the composition of the cosmetic of the present invention, conversely, the less the amount of water blended, the more the film feeling, greasy feeling, and sticky feeling due to the oil component are exhibited, and the delicate feeling and the cool feeling (cool feeling) peculiar to the present invention tend to be lost. Therefore, the amount of water blended in the cosmetic of the present invention is at least 10 mass%, preferably 30 mass% or more, and more preferably 45 mass% or more. The upper limit of the amount of water to be added is not particularly limited, and may be, for example, 95 mass% or less, 90 mass% or less, or 80 mass% or less.

The cosmetic of the present invention contains a large amount of water as described above, and therefore, the emulsion breaks on the skin when applied, and the water in the internal phase overflows, thereby imparting a very delicate and refreshing feeling (or a cool feeling).

The cosmetic of the present invention is a stick-like cosmetic containing (C) a wax capable of gelling the volatile mobile oil component (a).

In the present invention, the "wax capable of gelling a volatile mobile oil component" means a wax in which 85 mass% of a volatile mobile oil component (for example, decamethylcyclopentasiloxane) blended in a cosmetic is mixed with 15 mass% of a wax to form a uniform oil gel, and the hardness of an emulsion containing the oil gel is 5 or more, preferably 10 or more, and more preferably 15 or more. The upper limit of the hardness is 120 or less, preferably 100 or less, more preferably 50 or less, and further preferably 35 or less.

The "hardness" in the above definition is a hardness (γ) represented by the following formula (1) when measured under the following conditions using a known measuring apparatus such as a rheometer (manufactured by SUN corporation).

γ＝(G＊L)/(l＊a)(N/cm²) (1)

(wherein G: measurement stress, L:thickness (mm) of the sample, l: compression distance (mm), a: cross-sectional area (cm) of the needle²))

(measurement conditions)

MODE：20

R/H: hold (Hold)

P/T: pressing (Press)

REP：1

MAX：2kg

Penetration degree: 10.0mm

The needle inserting speed is as follows: 300 mm/min

Needle diameter: 1.5mm phi

Measuring temperature: 25 deg.C

Examples of the wax satisfying the above conditions include: microcrystalline wax, paraffin wax, myristyl myristate, ceresin wax, candelilla wax, polyethylene wax, jojoba oil (hydrogenated jojoba oil), rice bran wax, or solid hydrocarbon, or their mixture.

The amount of the wax (C) to be blended in the cosmetic of the present invention may be an amount that can gel the volatile mobile oil component to the predetermined hardness. Usually 0.1 to 20 mass%, preferably 1 to 15 mass%, more preferably 3 to 10 mass%. When the blending amount is less than 0.1% by mass, the hardness may be too low to hold the shape of the stick, and when it exceeds 20% by mass, the hardness may be too high to be applied to the skin due to poor extensibility.

The cosmetic of the present invention further contains (D) a silicone elastomer. By incorporating a silicone elastomer, the "thinning" of the stick thinning due to the evaporation of the volatile oil component over time is suppressed, and excellent shape stability can be achieved, and a skin unevenness correction effect is also imparted. Further, when the molded article is formed into a rod shape in the production process, it is necessary to slowly cool the molded article in order to suppress central indentation, and when the molded article is mixed with a silicone elastomer and slowly cooled until the molded article is solidified, there is an effect of suppressing the increase of emulsified particles.

Examples of the silicone elastomer used in the present invention include: one or more kinds of cross-linked silicone resin powders such as (polydimethylsiloxane/phenylvinyl polydimethylsiloxane) cross-linked polymer, (polydimethylsiloxane/vinyl polydimethylsiloxane/polymethylsiloxane) cross-linked polymer, (polydimethylsiloxane/vinyl polydimethylsiloxane) cross-linked polymer, polydimethylsiloxane cross-linked polymer, (diphenylpolydimethylsiloxane/vinyl diphenylpolydimethylsiloxane/silsesquioxane) cross-linked polymer, and the like.

The silicone elastomer may be blended in the form of a silicone gel composed of a cross-linking silicone resin powder and a solvent. Commercially available silicone gels can be used, and examples thereof include: KSG-18A, KSG-16, KSG-15AP (manufactured by Shin-Etsu Silicone Co., Ltd.), Elastomer Blend DC9045 (manufactured by Dow Corning Toray Co., Ltd.), and the like. The volatile mobile oil component contained as a solvent in these silicone gels is divided into the above-mentioned component (a), and the amount thereof is added to the amount of the component (a).

The amount of the silicone elastomer (D) in the cosmetic of the present invention is usually 0.005 to 10% by mass, preferably 0.05 to 5% by mass, and more preferably 0.1 to 2% by mass. When the blending amount is less than 0.005% by mass, there are cases where the emulsion stability is lowered, the stick is thinned, and the unevenness correction effect in makeup is lowered, and when it exceeds 10% by mass, there are cases where the delicate feeling in painting is lost.

The cosmetic of the present invention further contains (E) a silicone surfactant. As the silicone surfactant used in the present invention, polyether-modified silicone obtained by introducing a polyoxyalkylene structure into a silicone skeleton is preferably used. For example, it is preferable that: a crosslinked product obtained by crosslinking a siloxane chain with a polyoxyalkylene chain; a side chain type polyether-modified siloxane in which a polyoxyalkylene group is introduced as a side chain into a siloxane chain.

Specific examples of the silicone surfactant include: polyether-modified silicones such as PEG-10 polydimethylsiloxane, PEG-9 polydimethylsiloxane oxyethyl polydimethylsiloxane, lauryl PEG-15 polydimethylsiloxane ethyl polydimethylsiloxane, (polydimethylsiloxane/(PEG 10/15)) crosspolymers, and cross-linked polyether-modified silicones such as polydimethylsiloxane/polyglycerin-3 crosspolymers may be blended with 1 of these or 2 or more of them.

In the present specification, a cross-linking type polyether-modified silicone such as a (polydimethylsiloxane/(PEG-10/15)) cross-linked polymer may function as only the (E) silicone surfactant or as the (D) silicone elastomer, and a substance having a function as a surfactant is classified as the (E) silicone surfactant.

The silicone surfactant (E) may be added in the form of a silicone gel formed from the surfactant and a solvent, and a commercially available silicone gel may be used. Examples thereof include: KSG-210, KSG-710, KSG-360Z (manufactured by Shin-Etsu Silicone Co., Ltd.). The volatile mobile oil contained as a solvent in these silicone gels is also classified into the above-mentioned component (a), and the amount of the volatile mobile oil added to the amount of the component (a).

The amount of the silicone surfactant (E) in the cosmetic of the present invention is usually 0.05 to 20% by mass, preferably 0.1 to 10% by mass, and more preferably 0.5 to 5% by mass. When the compounding amount is less than 0.05% by mass, the emulsion stability is lowered, and when it exceeds 20% by mass, stickiness and a delicate feeling are sometimes lost.

The cosmetic of the present invention may contain, in addition to the essential components (a) to (E), other optional components that can be blended in the stick cosmetic within a range that does not impair the effects of the present invention. The following may be mentioned as optional components.

(F) Moisture-retaining agent

The moisture retention of the skin after application can be improved by matching with the humectant. Humectants also help to inhibit "thinning" of the stick due to evaporation of the associated water.

Specific examples of the humectant include: glycols such as propylene glycol, dipropylene glycol, 1, 3-butanediol, 1, 4-butanediol, diethylene glycol, triethylene glycol, and polyethylene glycol; glycerols such as glycerol, diglycerol, and polyglycerin; sugar alcohols such as sorbitol, mannitol, maltitol, xylitol, and erythritol; saccharides such as fructose, glucose, galactose, maltose, lactose, and trehalose.

When the moisturizing agent is incorporated into the cosmetic of the present invention, the amount of the moisturizing agent is usually 0.1 to 50% by mass, preferably 1 to 30% by mass, and more preferably 5 to 20% by mass. When the amount is less than 0.1% by mass, it may be difficult to obtain a sufficient moisturizing effect and the stick may be easily thinned. When the amount exceeds 50% by mass, stickiness and a delicate feeling may be lost.

(G) Non-volatile mobile oil

The hardness of the stick-type cosmetic can be adjusted by blending the non-volatile mobile oil component, and the non-volatile mobile oil component and the volatile mobile oil component can dissolve the color cosmetic applied to the skin in cooperation, so that the stick-type cosmetic exhibits a function of removing (cleaning) the color cosmetic locally, and is suitable for a simple makeup application.

The "non-volatile fluid oil component" in the present specification means a liquid oil component having fluidity at normal temperature (25 ℃) and does not belong to the volatile oil component (a). Can be selected from oil components usable in cosmetics and the like. For example, it is possible to use: 1 or more than 2 of hydrocarbon oil or silicone oil of oily component with boiling point higher than 260 ℃ under normal pressure or silicone oil with viscosity more than 10 cs.

Specific examples of the non-volatile mobile oil component include: liquid oils and fats such as linseed oil, camellia oil, macadamia nut oil, corn oil, olive oil, avocado oil, camellia oil, castor oil, safflower oil, almond oil, cinnamon oil, grape oil, almond oil, rapeseed oil, sesame oil, sunflower oil, wheat germ oil, rice bran oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, evening primrose oil, egg yolk oil, liver oil, triglycerin, tricaprylin, and triglycerin palmitate; octanoates such as cetyl octanoate, isooctanoates such as glycerol tri-2-ethylhexanoate and pentaerythritol tetra (2-ethylhexanoate), laurates such as hexyl laurate, myristates such as isopropyl myristate and octyldodecyl myristate, palmitates such as octyl palmitate, stearates such as isocetyl stearate, isostearates such as isopropyl isostearate, isopalmitate such as octyl isopalmitate, oleates such as isodecyl oleate, adipates such as diisopropyl adipate, sebacates such as diethyl sebacate, and ester oils such as diisostearyl malate; liquid hydrocarbon oils such as liquid paraffin and squalane; further, examples of the silicone oil include: chain siloxanes such as polydimethylsiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane, amino-modified siloxanes, carboxyl-modified siloxanes, alkyl-modified siloxanes, ammonium salt-modified siloxanes, and fluorine-modified siloxanes.

When the non-volatile mobile oil component is blended in the cosmetic of the present invention, the blending amount thereof is usually 0.1 to 50% by mass, preferably 1 to 30% by mass, and more preferably 1 to 15% by mass. When the blending amount is less than 0.1% by mass, the effect of inhibiting defects and collapse may be poor due to poor elongation, and when it exceeds 50% by mass, the feeling of stickiness and tenderness may be lost.

(H) Powder composition

the cosmetic of the present invention may contain various powder components that can be blended in the cosmetic for skin, and specific examples of the powder components include inorganic powders such as talc, kaolin, mica, silica, zeolite, etc., inorganic powders such as polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, copolymer resin powder of styrene and acrylic acid, organic powders such as cellulose powder, inorganic white pigments such as titanium dioxide and zinc oxide, inorganic red pigments such as iron oxide (Indian red), inorganic yellow pigments such as iron oxide yellow and loess, black pigments such as iron oxide black and carbon black, inorganic green pigments such as chromium oxide, chromium hydroxide and cobalt titanate, inorganic blue pigments such as ultramarine blue and prussian, inorganic blue pigments such as titanium oxide-coated mica, colored titanium oxide-coated mica, bismuth oxychloride, pearl pigments such as fish scale foil, metal powder pigments such as aluminum powder and copper powder, metallic powder pigments such as red pigments, red 202, red 204, red 205, red 220, red 226, red 228, red 405, orange 203, orange 204, orange 205, yellow 201, yellow 205, yellow 1, yellow 205, yellow 1-yellow, yellow-yellow, yellow-yellow chelate pigments such as red 202, yellow, etc., red-yellow-.

When the powder component is blended in the cosmetic of the present invention, the blending amount thereof is usually 0.00001 to 30% by mass, preferably 0.00001 to 20% by mass, and more preferably 0.00001 to 10% by mass. When the blending amount is less than 0.00001% by mass, the feeling of use alone of the powder such as a dry feeling may not be sufficiently felt or the powder may not be sufficiently developed, and when it exceeds 30% by mass, the moisturizing effect and the delicate feeling may be lost.

(I) Other optional ingredients

Examples of the optional components other than the above include: thickening agent, ceramide, vitamins, ultraviolet absorbent, chelating agent, bactericide, antiseptic, plant extract, amino acids, various medicinal agents, lower alcohols such as ethanol, etc.

The cosmetic of the present invention is a stick-like cosmetic having a novel function of moisturizing the skin during the daytime, and is suitable for a portable makeup.

The cosmetic of the present invention can be produced by a method conventionally used for stick cosmetics. In short, an oil component and an aqueous component are mixed together with heating as needed, respectively, an aqueous phase is emulsified in an oil phase, and then an emulsion is obtained, and the obtained emulsion is filled into a container and slowly cooled, whereby the production can be performed.

The cosmetic of the present invention has sufficient hardness as a stick cosmetic. Specifically, the hardness is preferably 5 to 120, more preferably 7 to 70, and still more preferably 10 to 50. The hardness is a value (γ) represented by the above formula (1).

The stick cosmetic of the present invention has a stick shape that does not require manual application because the inner phase contains a large amount of water as compared with conventional products, and therefore, when the stick cosmetic is directly applied to the skin, a large amount of water overflows due to emulsion destruction, and a very delicate touch feeling can be provided.

On the other hand, since a silicone elastomer having an unevenness correction effect is blended in an appropriate amount of an oily component, it is also suitable for makeup of skin to which a color cosmetic has been applied.

Specific makeup preparations include the following methods.

(1) The excess sebum and sweat are pressed (or wiped) with an oil-absorbing paper or a face paper as necessary.

(2) The cosmetic of the present invention is applied directly to the part where makeup removal is concerned.

(3) If necessary, the sheet is pressed with a face paper to be impregnated.

(4) A powdery foundation or powder is superimposed on the infiltrated portion.

Examples

The present invention will be described in detail with reference to examples, but the present invention is not limited to these examples. The amount to be blended is mass% unless otherwise specified.

Stick-shaped cosmetics were prepared according to the formulations shown in tables 1 to 4 below, and the following evaluation items (1) to (11) were evaluated according to the following evaluation methods and evaluation criteria. The results are shown together in the table. The hardness in the table is a hardness (γ) measured under the conditions described on page 5, lines 6 to 20.

Evaluation items

(1) Ability to be cured and shaped into a stick

(2) Presence or absence of stickiness

(3) Presence or absence of glare

(4) Presence or absence of peeling of foundation

(5) Good ductility

(6) Presence or absence of defect or collapse of the stick

(7) Tenderness feeling during smearing

(8) Soft feeling of skin contact

(9) Moisturizing effect (moisturizing effect)

(10) Concave-convex correction effect

(11) Slimming of the stick

Evaluation method and evaluation criteria

Evaluation item (1)

< evaluation method >

The oil component and the aqueous component contained in the compositions of the respective examples were mixed with heating, and the aqueous phase was emulsified in the oil phase to obtain an emulsion.

< evaluation Standard >

+: can be cured and molded into a rod shape.

-: the emulsion was separated and could not be solidified and formed into a rod-like shape.

Evaluation items (2) to (10)

< evaluation method >

10 panelists were asked to evaluate the samples of each example according to the following criteria.

< evaluation Standard >

A: out of the evaluators, 9 or more were excellent in response.

B: of the evaluators, 7 or 8 responded excellently.

C: of the panelists, 3 to 6 responded well.

D: the panelists had excellent responses of 2 or less.

Evaluation item (11)

< evaluation method >

The weight immediately after the preparation (initial value) was measured, and the weight after leaving at room temperature for 4 weeks was measured again to calculate the ratio of the weight loss to the initial value.

< evaluation Standard >

A: the weight reduction is 0.3% or less of the initial value.

B: the weight loss was 0.5% or less (more than 0.3%) of the initial value.

C: the weight reduction was less than 0.8% (more than 0.5%) of the initial value.

D: the weight reduction is more than 0.8% of the initial value.

[ Table 1]

[ Table 2]

[ Table 3]

[ Table 4]

[ Table 5]

[ Table 6]

Labeling of the table:

*1: (Dimethicone/(PEG-10/15)) crosslinked Polymer 20-30%/Dimethicone (6cs) 70-80% (manufactured by shin-Etsu chemical Co., Ltd.)

*2: (Dimethicone/polyglycerin-3) crosslinked Polymer 20 to 30%/Dimethicone (6cs)70 to 80% (manufactured by shin-Etsu chemical Co., Ltd.)

*3: (PEG-15/lauryl Dimethylsilyloxyethyldimethicone) Cross-Linked Polymer 30-40%/Dimethicone (6cs) 60-70% (manufactured by shin-Etsu chemical Co., Ltd.)

*4: (Dimethicone/phenyl vinyl polydimethylsiloxane) crosslinked Polymer 10-20%/Diphenylsiloxyphenyl trimethicone 80-90% (manufactured by shin-Etsu chemical Co., Ltd.)

*5: polydimethylsiloxane/vinyl polydimethylsiloxane crosslinked polymer 4 to 10%/decamethylcyclopentasiloxane 90 to 96% (manufactured by shin-Etsu chemical Co., Ltd.)

*6: polydimethylsiloxane crosspolymer 12.5%/decamethylcyclopentasiloxane 87.5% (manufactured by Dow corning toray co., ltd.)

*7: (PEG-15/lauryl polydimethylsiloxane) crosslinked polymer 25-35%/mineral oil 65-75% (manufactured by shin Etsu chemical Co., Ltd.)

As shown in table 4, satisfactory properties could not be obtained in (a) comparative example 1 in which the amount of volatile mobile oil blended was less than 0.01 mass%, conversely, comparative example 2 in which the amount of volatile mobile oil blended was more than 50 mass%, comparative example 3 in which the amount of water blended was less than 10 mass%, comparative example 4 in which (D) silicone elastomer was not included, and comparative example 5 in which (E) silicone surfactant was not included. On the other hand, examples 1 to 19 (tables 1 to 3 and 5) satisfying the characteristics of the present invention had sufficiently excellent characteristics when provided as products in all the items measured.

Hereinafter, non-limiting formulation examples of the cosmetic of the present invention will be described. These cosmetics also have excellent properties similar to those of examples 1 to 19.

< formulation example 1: stick-shaped cosmetic liquid

< preparation method >

In the above formulation, the oil phase components (8) to (17) and (24) were heated and mixed at 90 ℃, and the mixture of the water phase components (1) to (7) and (18) to (23) heated to 85 ℃ was gradually added and adjusted while stirring with a homomixer, and the mixture was filled in a stick container and then slowly cooled.

< formulation example 2: stick-shaped whitening beauty lotion

< preparation method >

In the above formulation, the oil phase components (6) to (15), (18), (21) and (26) were heated and mixed at 90 ℃, and the mixture of the water phase components (1) to (5), (16) to (17), (19) to (20) and (22) to (25) heated to 85 ℃ was slowly added and adjusted while stirring with a homomixer, and the mixture was filled in a stick container and then slowly cooled.

< formulation example 3: stick-shaped moisturizing cream

< preparation method >

In the above formulation, the oil phase components (5) to (14), (18), (19) and (23) were heated and mixed at 90 ℃, and a mixture of the water phase components (1) to (4), (15) to (17) and (20) to (22) heated to 85 ℃ was slowly added and adjusted while stirring with a homomixer, and the mixture was filled in a stick container and then slowly cooled.

Claims (3)

1. A stick cosmetic for moisturizing, comprising:

(A)0.01 to 50 mass% of a volatile mobile oil component;

(B) 30% by mass or more of water;

(C) a wax capable of gelling the volatile mobile oil;

(D) one or more silicone elastomers selected from the group consisting of (polydimethylsiloxane/phenylvinyl polydimethylsiloxane) crosspolymer, (polydimethylsiloxane/vinyl polydimethylsiloxane/polymethylsiloxane) crosspolymer, (polydimethylsiloxane/vinyl polydimethylsiloxane) crosspolymer, polydimethylsiloxane crosspolymer, and (diphenylpolydimethylsiloxane/vinyl diphenylpolydimethylsiloxane/silsesquioxane) crosspolymer; and

(E) one or more silicone surfactants selected from the group consisting of PEG-10 polydimethylsiloxane, PEG-9 polydimethylsiloxane oxyethyl polydimethylsiloxane, lauryl PEG-15 polydimethylsiloxane, (polydimethylsiloxane/(PEG 10/15)) crosspolymer, and (polydimethylsiloxane/polyglycerol-3) crosspolymer.

2. The cosmetic according to claim 1, further comprising: 0.1 to 50 mass% of (F) a humectant.

3. The cosmetic according to claim 1 or 2, which has a hardness of 5 to 120 on the basis of a rheometer.