WO2023145306A1

WO2023145306A1 - Hair and/or skin composition, method for treating hair and/or skin, and device for hair and/or skin

Info

Publication number: WO2023145306A1
Application number: PCT/JP2022/046820
Authority: WO
Inventors: 亮井口; 雄介瀧野; 寛歳追風
Original assignee: 株式会社ミルボン; パナソニックホールディングス株式会社
Priority date: 2022-01-31
Filing date: 2022-12-20
Publication date: 2023-08-03
Also published as: TW202333652A; KR20240144098A

Abstract

Provided are a hair and/or skin composition, a hair and/or skin treatment method, and a device for the hair and/or skin, that can achieve a highly uniform application even when the amount of incorporation of components that commonly exert actions and effects is increased. The hair and/or skin composition has an evaporation residue of at least 1.0 mass% and is discharged in mist form from a device that has an air blowing element that produces an air current. The hair and/or skin treatment method uses a composition that has an evaporation residue of at least 1.0 mass% and that is discharged in mist form from a device that has an air blowing element that produces an air current. The device for the hair and/or skin comprises a tank that stores a composition that has a evaporation residue of at least 1.0 mass%, and a mist-generating element that discharges the composition in the tank in mist form.

Description

Hair and/or skin composition, hair and/or skin treatment method and hair and/or skin device

The present invention provides a composition for hair and/or skin containing an oily component and the like, which is used by applying it to the surface of hair and/or skin in the form of a mist, a method for treating hair and/or skin, and a composition for hair and/or skin. and/or skin devices.

As a composition to be applied to hair or skin, for example, a non-aqueous composition for skin or hair containing an ultraviolet absorber and a liquid hydrocarbon (see Patent Document 1) has a quaternary ammonium group-containing group. , a containerized liquid cosmetic for spraying containing hyaluronic acid and/or a salt thereof having a degree of cationization of 0.15 to 0.6 (see Patent Document 2). These disclosed compositions can be used by directly applying the composition by hand, by spraying from a pump-type container, and the like. Further, Patent Document 3 discloses a method of using a hair care device having a mist generating portion as a different coating method from Patent Documents 1 and 2 (see paragraph 0023, etc.).

JP 2021-075498 A JP 2010-24207 A Japanese Patent Application Laid-Open No. 2021-132688

By the way, the uniform application of the composition to the hair and skin is a factor in improving the uniformity of the expected action and effect of the composition. However, when direct application by hand or spray application from a pump-type container is performed, the application tends to be localized with an awareness of the application site. In addition, the action and effect of the composition are generally more likely to be exhibited by components that do not evaporate. is easy to manifest.

In view of the above circumstances, the present invention provides a composition for hair and/or skin that can realize highly uniform application even if the blending amount of components that generally exert their actions and effects is increased. and a hair and/or skin device comprising the same composition.

As a result of intensive studies by the present inventors, it has been found that the evaporation residue under predetermined conditions is 1.0% by mass or more, and for hair that is discharged in the form of a mist from a device having an air blower that generates an air flow and / or As long as it is a composition for skin, even if it is an evaporation residue, it is possible to realize highly uniform application, which led to the completion of the present invention.
That is, the present invention is as follows [1] to [9].

[1] A composition for hair and/or skin that has an evaporation residue of 1.0% by mass or more after being left at 50° C. for 24 hours, and is discharged from a device having a blowing unit that generates an air flow. (hereinafter, "hair and/or skin composition" may be simply referred to as "composition"). When the composition according to [1] is used for hair, the airflow has the effect of detangling the hair. As a result, the composition in the form of mist can be easily applied not only to the surface of the hair that can be observed from the outside in a stationary state, but also to the other surfaces of the hair.

[2] The composition for hair and/or skin according to [1], wherein the ejection amount in the ejection is 100 mg/s or less. With the composition according to [2], more uniform application can be achieved.

[3] The composition according to [1] or [2] above, which has a viscosity of 200 mPa·s or less. When the composition has a viscosity of 200 mPa·s or less, the discharged composition according to [3] can be atomized efficiently and easily.
The viscosity refers to a value obtained by measuring the liquid composition, not the mist composition (hereinafter the same).

[4] The composition according to any one of [1] to [3], containing a nonionic surfactant. Addition of a nonionic surfactant to the composition is suitable for improving the smooth feel of the hair.

[5] The composition according to [4], wherein the amount of the nonionic surfactant is 15% by mass or less. The composition can be easily discharged in the form of a mist.
The blending amount refers to the blending amount of the composition in a liquid form, not in a mist form (the same shall apply hereinafter).

[6] Any one of the above [1] to [5], wherein a liquid oily component is blended as the component that becomes the evaporation residue, and the blending amount of the liquid oily component is 1.0% by mass or more. The described composition. The oily component in the composition is suitable for imparting a smooth feel to hair and skin, and the addition of 1.0% by mass or more further improves the smoothness.

[7] The above [1] to [6] in which one or more oily components selected from hydrocarbons, waxes, ester oils, oils and fats, higher alcohols, and silicones are blended as the components that form the evaporation residue. ] The composition according to any one of the above. The blending of this oily component improves the smoothness of hair and skin.

[8] The composition according to any one of [1] to [7], which is an oil-in-water emulsion composition, a water-in-oil emulsion composition, or a non-aqueous composition containing two or more oily components. thing.

[9] A method for treating hair and/or skin using the composition according to any one of [1] to [8] above.

[10] A tank for storing a composition for hair and/or skin that has an evaporation residue of 1.0% by mass or more after being left at 50°C for 24 hours, an air blower for generating an air flow, and the composition. and a mist generator for ejecting in the form of a mist.

[11] The device according to the above [10], wherein the ejection amount in mist ejection from the mist generating section is 100 mg/s or less.

[12] The device according to [10] or [11], wherein the viscosity of the composition for hair and/or skin is 200 mPa·s or less.

[13] The device according to any one of [10] to [12], wherein the composition for hair and/or skin contains a nonionic surfactant.

[14] The device according to [13], wherein the amount of the nonionic surfactant is 15% by mass or less.

[15] The hair and/or skin composition contains a liquid oily component as an evaporation residue, and the amount of the liquid oily component is 1.0% by mass or more. The device according to any one of [10] to [14].

[16] The composition for hair and/or skin contains one or more selected from among hydrocarbons, waxes, ester oils, fats and oils, higher alcohols, and silicones, as the component to be the evaporation residue. The device according to any one of [10] to [15] above, which contains an oily component.

[17] The above hair and/or skin composition is an oil-in-water emulsion composition, a water-in-oil emulsion composition, or a non-aqueous composition containing two or more oily components. The device according to any one of [10] to [16].

[18] A method for treating hair and/or skin using the device according to any one of [10] to [17].

According to the composition for hair and/or skin according to the present invention, the composition for hair and/or skin according to the present invention is discharged in the form of a mist and is dispersed by an air flow, so that highly uniform application is possible and the evaporation residue is 1.0. Since it is mass % or more, the action and effect of the component are enhanced.

In addition, according to the method for treating hair and/or skin according to the present invention, the mist composition is discharged together with the air flow sent out from the air blowing section, so that the composition is more diffused and uniform in the air flow. In addition, since the evaporation residue of the composition is 1.0% by mass or more, the actions and effects of the components are enhanced.

In addition, according to the apparatus of the present invention, the misty composition discharged from the mist generating part is diffused by the airflow sent out from the air blowing part, so that the composition can be applied with high uniformity. Moreover, since the evaporation residue of the composition is 1.0% by mass or more, the actions and effects of the components are enhanced.

In addition, according to the hair and/or skin treatment method using the device according to the present invention, since the mist composition is discharged together with the airflow sent out from the air blower, the composition can be more easily absorbed in the airflow. Since the composition can be diffused and applied with high uniformity, and the evaporation residue of the composition is 1.0% by mass or more, the actions and effects of the components are enhanced.

1 is a side view of an example of a device according to the invention; FIG. 2 is a cross-sectional view of the device of FIG. 1; FIG. FIG. 2 is a block diagram showing the electrical connections of the device of FIG. 1; Schematic diagram for explaining the diffusion of the mist composition. Images for explaining the state of application to the water sensitivity test paper of Example 3 and Comparative Example 3. FIG. Images for explaining the coating uniformity of Reference Examples 1 and 2.

The present invention will be described below based on the embodiments of the present invention.
The composition of the present embodiment has a predetermined amount or more of evaporation residue and is discharged in the form of a mist from a specific device.

The evaporation residue in the composition of the present embodiment is preferably 1.0% by mass or more and 90% by mass or less, preferably 2.0% by mass or more and 50% by mass or less, and more preferably 3.0% by mass or more and 40% by mass or less. It is preferably 4.0% by mass or more and 35% by mass or less, and even more preferably 5.0% by mass or more and 30% by mass or less. When the evaporation residue is 1.0% by mass or more, the action and effect of the component, such as imparting a feeling to the touch, are easily exerted, and when it is 90% by mass or less, it is suitable for suppressing excessive action and effect by the same component. is.

Here, the above-mentioned "evaporation residue" is the remaining amount after the composition is left in a constant temperature bath set at 50 ° C. for 24 hours, (mass of the composition after standing in the constant temperature bath) / (constant temperature It is a value calculated by multiplying the mass of the composition before being left in the bath)×100.

For the purpose of smoothing the feel of the hair or skin surface, the composition of the present embodiment contains an oily component that becomes an evaporation residue, an oily component that does not remain after evaporation, or an oily component that becomes an evaporation residue and an evaporation It is good if it contains an oily component that does not leave a residue behind. The oily component is one or more selected from hydrocarbons, waxes, ester oils, fats and oils, higher alcohols, and silicones.

As the hydrocarbon, one or more selected from known hydrocarbons can be blended. Also, hydrocarbons that are liquid at 25°C and/or hydrocarbons that are solid at 25°C can be blended. Examples of the hydrocarbon include hydrogenated polyisobutene, isododecane, (C13-15) alkane, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum, and microcrystalline wax.

The above waxes are classified as esters derived from natural products, and generally correspond to esters of fatty acids and water-insoluble higher monohydric alcohols or dihydric alcohols. When wax is blended, one or more selected from known waxes can be blended. Examples of the wax include beeswax, Japanese wax, jojoba oil, candelilla wax, rice bran wax, carnauba wax, and sunflower seed wax.

The above ester oil is classified as an ester obtained by synthesis. When blending an ester oil, one or more selected from known ester oils can be blended. Also, an ester oil that is liquid at 25°C and/or an ester oil that is solid at 25°C can be blended. The ester oils include ethyl oleate, oleyl oleate, isopropyl myristate, isopropyl palmitate, butyl stearate, cetyl palmitate, myristyl myristate, octyldodecyl myristate, isopropyl isostearate, ethyl isostearate, 2-ethyl Cetyl hexanoate, hexyl isostearate, ethylene glycol di-2-ethylhexanoate, ethylene glycol dioleate, propylene glycol di(capryl-caprate), propylene glycol dioleate, trimethylolpropane triisostearate, tetra-2-ethylhexanoic acid pentaerythritol, isocetyl isostearate, 2-octyldodecyl dimethyloctanoate, myristyl lactate, trioctyldodecyl citrate, diisostearyl malate, di-2-ethylhexyl succinate, diisobutyl adipate, cholesteryl stearate, isostearyl isostearate, isotridecyl isononanoate, (caprylic/capric)cocoalkyl.

Fats and oils are mainly composed of triesters of fatty acids and glycerin. When blending fats and oils, one or more selected from known fats and oils can be blended. In addition, fats and oils that are liquid at 25°C and/or fats and oils that are solid at 25°C can be blended. Examples of the oils include almond oil, avocado oil, apricot kernel oil, olive oil, rice bran oil, shea butter, shea butter oil, evening primrose oil, passionflower seed oil, camellia oil, babassu oil, peanut oil, sunflower seed oil, rose hip oil.

A higher alcohol is a monohydric alcohol with 12 or more carbon atoms. When blending a higher alcohol, one or more selected from known higher alcohols can be blended. Further, a higher alcohol that is liquid at 25°C and/or a higher alcohol that is solid at 25°C can be blended. Examples of higher alcohols include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, octyldodecanol, isostearyl alcohol, and oleyl alcohol.

When blending silicone, one or more selected from known silicones can be blended. Examples of the silicone include dimethyl silicone (methylpolysiloxane, highly polymerized methylpolysiloxane, etc.), methylphenyl silicone, cyclic silicone (octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, etc.), amino-modified silicone (aminoethylamino propylsiloxane/dimethylsiloxane copolymer, aminoethylaminopropylmethylsiloxane/dimethylsiloxane copolymer, etc.), long-chain alkyl-modified silicones, and dimethiconol.

When blending an oily component that becomes an evaporation residue in the composition of the present embodiment, one or more selected from hydrocarbons, waxes, ester oils, fats, higher alcohols, and silicones that correspond to the evaporation residue. to be blended. The amount of the oily component that becomes the evaporation residue in the composition of the present embodiment is preferably 1.0% by mass or more and 50% by mass or less, preferably 2.0% by mass or more and 40% by mass or less, and 3.0% by mass. 30 mass % or less is more preferable, 4.0 mass % or more and 15 mass % or less is still more preferable, and 5.0 mass % or more and 10 mass % or less is still more preferable. When the amount is 1.0% by mass or more, the action and effect of the component, such as imparting a feeling to the touch, are easily exerted, and when the amount is 50% by mass or less, it is suitable for suppressing the excessive action and effect of the same component. is.

In addition, blending a liquid oily component as an evaporation residue component in the composition of the present embodiment is suitable for improving the smoothness of the hair and skin surface. The amount of the liquid oil component in the composition of the present embodiment is preferably 1.0% by mass or more and 50% by mass or less, preferably 2.0% by mass or more and 40% by mass or less, and 3.0% by mass or more and 30% by mass. The following is more preferable, 4.0 to 15 mass % is still more preferable, and 5.0 to 10 mass % is even more preferable. When the blending amount is 1.0% by mass or more, the action and effect of the component, such as imparting a feeling to the touch, are easily exerted. be.

For the purpose of emulsifying and dispersing and solubilizing the oily component, the composition of the present embodiment may be appropriately blended with a known surfactant. In addition, polyhydric alcohols, saccharides, polymer compounds, amino acids, animal and plant extracts, inorganic compounds, fragrances, preservatives, sequestering agents, ultraviolet absorbers, thickeners, and the like, known hair compositions and known skin You may mix|blend the component mix|blended with the composition for. In addition, the composition of the present embodiment preferably does not contain solid particles in order to make the hair and skin feel smooth.

The addition of a nonionic surfactant to the composition of this embodiment is suitable for improving the smooth feel of hair. This nonionic surfactant is preferably one or more selected from known nonionic surfactants blended in hair and/or skin compositions. Nonionic surfactants include, for example, polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene curing castor oil, polyoxyethylene sorbitol tetra-fatty acid ester, glycerin fatty acid ester, alkyl glucoside, sorbitan fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, sucrose fatty acid ester, and alkylalkanolamide.

The amount of the nonionic surfactant in the composition of the present embodiment is preferably 0.1% by mass or more and 15% by mass or less, preferably 0.5% by mass or more and 10% by mass or less, and 1% by mass or more and 8% by mass or less. is more preferable, and 2% by mass or more and 6% by mass or less is even more preferable. A blending amount of 0.1% by mass or more is suitable for improving the smooth feeling of the hair, and a blending amount of 10% by mass or less is suitable when setting the viscosity of the composition to be low.

The dosage form of the composition of the present embodiment is a liquid that facilitates ejection of the composition in the form of a mist. The viscosity of the liquid composition of the present embodiment is, for example, 200 mPa s or less, preferably 100 mPa s or less, preferably 70 mPa s or less, more preferably 50 mPa s or less, and further preferably 30 mPa s or less. It is preferably 10 mPa·s or less, and more preferably 10 mPa·s or less (in order to reduce the viscosity, for example, the amount of solid components or relatively highly viscous components blended in the composition of the present embodiment may be reduced). When the viscosity is 200 mPa·s or less, the composition of the present embodiment can be easily and efficiently finely divided into a mist, and is also suitable for imparting a smooth feel to hair and skin surfaces. Here, the viscosity was measured using a rheometer "Thermo Scientific HAAKE MARS 40" manufactured by Thermo Fisher Scientific Co., Ltd. in steady flow curve mode, shear rate (dγ/dt) 50 s ^-1 , cone plate sensor (diameter 35 mm, The value of η (mPa·s) was adopted under the conditions of an inclination angle of 2°) and a temperature of 25°C.

The composition of the present embodiment includes, for example, an oil-in-water emulsion composition in which an oily component is dispersed with a surfactant, a water-in-oil emulsion composition in which an aqueous component is dispersed with a surfactant, two or more kinds of oily Examples include non-aqueous compositions in which ingredients are blended. When the composition of the present embodiment is an oil-in-water emulsion composition, the amount of water to be blended is preferably 50% by mass or more, preferably 60% by mass or more, when the viscosity of the composition is to be kept low. 70% by mass or more is more preferable, and 75% by mass or more is even more preferable. In addition, the non-aqueous composition refers to a composition that does not correspond to a water-in-oil emulsion composition and contains less than 0.5% by mass of water or does not contain water.

FIGS. 1 to 3 show an apparatus according to the present embodiment for ejecting the composition in the form of a mist when using the composition according to the present embodiment, which is an example of the apparatus according to the present invention.

FIG. 1 is a side view of the device of this embodiment. The device 10 can continuously generate an air flow and can continuously spray the composition of the present embodiment in the form of a mist. mentioned.). Here, the term “continuously” for spraying in the form of a mist means 1 second or more, 5 seconds or more, 10 seconds or more, 30 seconds or more, 1 minute or more, 3 minutes or more, 5 minutes or more, or 10 minutes or more. It is meant to last for hours, unlike spraying from a pump-type container where the dispensing ends instantly.

The device 10 comprises a housing 11 that constitutes the appearance of the device 10 and accommodates a plurality of elements, a grip portion 12 that has an operation portion 40 and is gripped by a user, and a power line 61 for supplying power. Prepare. The housing 11 and the grip portion 12 are preferably connected so that the position of the housing 11 with respect to the grip portion 12 can be changed. The housing 11 has an inlet 11A for inflow of external air and an outlet 11B for discharging the composition of the present embodiment or airflow to the outside. The shape of the intake port 11A and the discharge port 11B is, for example, elliptical.

FIG. 2 is a cross-sectional view of the device 10 shown in FIG. The housing 11 has a channel 13 in which a fluid flow is formed. The flow path 13 has an appropriate hollow structure so that the air from the suction port 11A shown in FIG. 1 can be delivered to the discharge port 11B. The flow path 13 includes a first flow path 13A through which air mainly passes, and a second flow path 13B through which the misty composition of the present embodiment mainly passes.

FIG. 3 is a block diagram showing electrical connections of the device 10 shown in FIG. The device 10 has a control section 20 connected to a power line 61 for supplying power shown in FIG. A mist generator 90 is further provided. These parts are preferably held inside the housing 11 as shown in FIG. 2, for example.

The control unit 20 is composed of an arithmetic processing unit that executes a control program. The control unit 20 is configured to communicate with the operating unit 40, the air blowing unit 70, the heating unit 80, and the mist generating unit 90 wirelessly or by wire. The control unit 20 starts control when an operation signal is input from the operation unit 40 .

The operation unit 40 outputs an operation signal to the control unit 20, for example, according to an operation by the user. The operation signal includes a signal for switching ON and OFF of the control unit 20 or a signal for changing the output of at least one of the air blowing unit 70 , the heating unit 80 , and the mist generating unit 90 by the control unit 20 . A part of the operation part 40 is configured to protrude outward from the housing 11 so that the user can easily operate it. The operation unit 40 is composed of buttons, switches, and dials, for example.

The air blower 70 sucks air from the intake port 11A shown in FIG. 1 and forms an air flow that is sent out from the discharge port 11B. As shown in FIG. 2 , blower section 70 includes motor 71 and fan 72 . By driving the motor 71 , the fan 72 rotates to generate an air flow in the flow path 13 . The motor 71 is controlled by the controller 20 . The device 10 of this embodiment generates a continuous airflow by maintaining the rotating state of the fan 72 . Air blower 70 exists upstream of first flow path 13A and second flow path 13B in flow path 13, and supplies airflow to both first flow path 13A and second flow path 13B.

The heating unit 80 heats the air flow inside the housing 11 to create warm air. The warm air is, for example, air within the range of 100-120°C. Heating unit 80 includes a heater 81 . An example of the heater 81 is a PTC (Positive Temperature Coefficient) heater and an infrared heater. The heating unit 80 is provided, for example, in the first flow path 13A. The controller 20 controls the output of the heater 81 . By increasing the temperature of the air flow sent out from the device 10 to make it warm air, it is possible to accelerate the evaporation of components other than the evaporation residue of the composition.

The mist generator 90 mists the composition of the present embodiment and ejects it. Mist generator 90 includes pump 91, tank 92, and nozzle 93 shown in FIG. Pump 91 is a liquid pump that supplies the composition of the present embodiment stored in tank 92 to nozzle 93 by driving a motor (not shown) (an example of the liquid pump is a gear pump). Tank 92 stores the compositions of the present embodiments within device 10 . Tank 92 is constructed of known materials suitable for holding liquid compositions such as polypropylene. Nozzle 93 atomizes the composition of this embodiment. In order to realize this atomization, for example, the air and the composition of the present embodiment are mixed inside the nozzle 93, and atomization is possible by shearing force during this mixing. In this case, pump 91 further includes a gas pump such as a diaphragm pump. In the mist generating unit 90, the control unit 20 controls the flow rate of the composition of the present embodiment that is discharged in the form of a mist from the mist generating unit 90, and the composition of the present embodiment that is discharged in the form of a mist from the mist generating unit 90. The amount of composition is controllable. The amount of the composition of the present embodiment that is discharged in the form of a mist per second is preferably 0.1 mg/s or more and 100 mg/s or less, preferably 0.3 mg/s or more and 50 mg/s or less, and 0.5 mg/s. It is more preferably 0.5 mg/s or more and 5 mg/s or less, and even more preferably 0.5 mg/s or more and 3 mg/s or less. When the discharge amount is 100 mg/s or less, it is suitable for improving uniformity of coating, and when it is 0.1 mg/s or more, it is suitable for shortening the coating process.

Power is supplied to the control unit 20 by operating the operation unit 40, and power is further supplied to the pump 91, the motor 71, or the heater 81 as necessary. When power is supplied to the pump 91, the composition of the present embodiment is discharged from the nozzle 93 in the form of a mist, and the composition is led to the outside of the device 10 through the second flow path 13B. When electric power is supplied to the motor 71, the fan 72 operates and the airflow sent out by the fan 72 is blown out of the apparatus 10 through the first flow path 13A.
The particle size of the composition discharged in the form of a mist may be, for example, 20 μm or more and 200 μm or less. Here, the particle size refers to a volume average particle size measured by a laser diffraction scattering method.

FIG. 4 is a schematic diagram for explaining the diffusion of the composition of the present embodiment (fog composition M) in the form of a mist (the mist composition in FIG. 4 is shown in a circular shape). The misty composition M discharged from the second flow path 13B is attracted to the air flow A sent out from the first flow path 13A and spreads. As a result, local application of the composition of the present embodiment to the hair or skin is suppressed, and highly uniform application becomes possible. Moreover, when the air is heated by the heater 81 of FIG. 2, it is possible to apply the composition of the present embodiment and dry the same composition at the same time.

By using an apparatus comprising a tank for storing the composition of the present embodiment, an air blowing section for generating an air flow, and a mist generating section for discharging the composition in the form of a mist, the composition of the present embodiment can be obtained in the form of a mist. A highly uniform application treatment can be achieved by applying the composition of (1) to hair, skin, or hair and skin.

The present invention will be described in detail below based on examples, but the present invention should not be construed in a limited manner based on the description of these examples.

<<Examples 1 and 2, Comparative Examples 1 and 2>>
The hair compositions of Examples 1 and 2 and Comparative Examples 1 and 2 were produced, and after the hair was treated with these compositions, the feel and luster of the hair were evaluated. Details are as follows.

(Composition for hair)
Squalane, which is a non-volatile hydrocarbon, and isododecane, which is a volatile hydrocarbon, were mixed to produce non-aqueous liquid hair compositions of Comparative Examples 1 and 2 and Examples 1 and 2 having a viscosity of 100 mPa·s or less. . The blending amounts during production were as shown in Table 1 below. In addition, the evaporation residue was calculated based on the mass before and after leaving 10 g of the hair composition in a constant temperature bath at a set temperature of 50° C. for 24 hours.

(hair treatment)
After washing, a bundle of hair (approximately 30 cm long and weighing 12 g) that has been wiped dry with a towel is combed with a hand comb for 1 minute from a device having an air blowing unit and a mist generating unit. At the same time, one of the atomized compositions of Comparative Examples and Examples was applied (the amount of the composition applied was 40 mg).

(Evaluation: hair feel)
Two evaluators evaluated the feel of the hair immediately after the hair treatment and 24 hours after the hair treatment.

(Evaluation: Hair luster)
The luster of the hair immediately after the hair treatment and 24 hours after the hair treatment was visually evaluated by two evaluators.

Table 1 below shows the components blended in the compositions of Comparative Examples 1 and 2 and Examples 1 and 2, their blending amounts, the evaluation of the feel of the hair, and the evaluation of the luster of the hair (in addition, in the two evaluations, , two evaluators gave the same evaluation).

As shown in Table 1, it can be confirmed that as the amount of the evaporation residue increased, the feel of the component was exhibited more. The effect is highly uniform because the mist compositions of Examples 1 and 2 are applied to the hair while being diffused by the air flow.

<<Example 3, Comparative Example 3>>
A panel of 152 mm x 208 mm was prepared by arranging a plurality of water sensitivity test papers (manufactured by Spraying Systems, size 52 mm x 76 mm). The panel was sprayed with the hair composition shown in Table 2 below. This coating method was as follows in Example 3 and Comparative Example 3.
Example 3:
Warm air (temperature of about 80° C., wind speed of 20 m/s) was blown onto the panel from an apparatus having a blowing unit and a mist generating unit, and 200 mg of the misted hair composition was applied over 3 minutes. .
Comparative Example 3:
A metered discharge mist pump manufactured by Yoshino Kogyo Co., Ltd., which discharges about 200 mg at one time, was used for application.

FIG. 5 is an image for explaining the state of application to the water sensitivity test paper of Example 3 and Comparative Example 3, and Table 3 below summarizes the application of Example 3 and Comparative Example 3. As shown in FIG. 5, in Comparative Example 3, the coating amount in the central portion of the water sensitivity test paper panel was large. On the other hand, in Example 3, it can be confirmed that there is no bias in the amount of application to the central portion as in Comparative Example 3, and the application is highly uniform.

<<Examples 4 to 7>>
The hair compositions of Examples 4 to 7 shown in Table 4 below were applied in the form of a mist to bundles of hair (about 30 cm in length, 10 g in weight) that had been washed with water and towel-dried. In this application method, warm air (temperature of about 80°C, wind speed of 20 m/s) as an air flow is blown onto the hair bundle from an apparatus having an air blowing part and a mist generating part, and 200 mg of the misted hair composition is applied. It was applied for 3 minutes. In addition, the particle size of the mist composition discharged from the apparatus was measured using a particle size distribution meter "AEROTRAC II" manufactured by Microtrack Bell. In this measurement, the lens used is "f100 lens", the exposure time is "10 seconds", and the distance from the lens to the mist composition is "50 mm". The particle size of the composition”.

Table 4 below shows the results of evaluating the surface smoothness of the hair tresses to which the hair compositions of Examples 4 to 7 were applied. Examples 5 to 7, in which a nonionic surfactant was blended, were more excellent in smoothness than Example 4.

<<Reference Examples 1 to 2>>
After washing the hair attached to the human head mannequin and wiping off moisture with a towel, 0.3 g of a commercially available liquid hair composition (“Plumia Day Essence” manufactured by Milbon Co., Ltd.) additionally containing a red pigment was applied to the human head. It was applied to the hair on one side of the head mannequin. This coating was carried out by the treatment of Reference Examples 1 and 2 below.
Reference example 1:
A device having an air blower and a mist generator blows hot air (temperature about 80°C, wind speed 20 m/s) as an air flow while combing, and applies the liquid hair composition in the form of a mist. bottom.
Reference example 2:
The liquid composition for hair was applied to the palm of the hand.

From the color image of the hair applied by the treatment of Reference Examples 1 and 2, the red hue was extracted by image processing, and the uniformity of the application was confirmed from the extracted image. FIG. 6 is an image for explaining the coating uniformity of Reference Examples 1 and 2. The extracted image of Reference Example 1 has clearly less color unevenness than the extracted image of Reference Example 2, and the coating uniformity is good. It can be confirmed that it was

10 Device 20 Control Unit 70 Blower Unit 71 Motor 72 Fan 90 Mist Generation Unit 91 Pump 92 Tank M Atomized Composition A Air Flow

Claims

The evaporation residue after standing at 50 ° C. for 24 hours is 1.0% by mass or more,
A mist composition for hair and/or skin discharged from a device having an air blower for generating an air flow.
The composition for hair and/or skin according to claim 1, wherein the ejection amount in the ejection is 100 mg/s or less.
The composition for hair and/or skin according to claim 1 or 2, which has a viscosity of 200 mPa·s or less.
The composition for hair and/or skin according to any one of claims 1 to 3, which contains a nonionic surfactant.
The composition for hair and/or skin according to claim 4, wherein the content of the nonionic surfactant is 15% by mass or less.
6. The and/or for hair according to any one of claims 1 to 5, wherein a liquid oily component is blended as the component that becomes the evaporation residue, and the blending amount of the liquid oily component is 1.0% by mass or more. Or a composition for skin.
7. Any one of Claims 1 to 6, wherein one or more oily components selected from hydrocarbons, waxes, ester oils, fats and oils, higher alcohols, and silicones are blended as the components that form the evaporation residue. A hair and/or skin composition as described.
The composition for hair and/or skin according to any one of claims 1 to 7, which is an oil-in-water emulsion composition, a water-in-oil emulsion composition, or a non-aqueous composition containing two or more oily components. Composition.
A method for treating hair and/or skin using the composition for hair and/or skin according to any one of claims 1 to 8.
A tank for storing a hair and/or skin composition having an evaporation residue of 1.0% by mass or more after being left at 50° C. for 24 hours;
a blower for generating an airflow;
a mist generator for ejecting the composition for hair and/or skin in the form of a mist;
A device comprising
11. The device according to claim 10, wherein the amount of mist ejected from the mist generator is 100 mg/s or less.
The device according to claim 10 or 11, wherein the composition for hair and/or skin has a viscosity of 200 mPa·s or less.
The device according to any one of claims 10 to 12, wherein the composition for hair and/or skin contains a nonionic surfactant.
The device according to claim 13, wherein the amount of the nonionic surfactant is 15% by mass or less.
10. The composition for hair and/or skin contains a liquid oily component as an evaporation residue, and the content of the liquid oily component is 1.0% by mass or more. 15. The device according to any one of 14.
The composition for hair and/or skin contains one or two or more oily components selected from hydrocarbons, waxes, ester oils, fats and oils, higher alcohols, and silicones, as components that form the evaporation residue. A device according to any one of claims 10 to 15 which is compounded.
The hair and/or skin composition is an oil-in-water emulsion composition, a water-in-oil emulsion composition, or a non-aqueous composition containing two or more oily components. A device according to any of the preceding claims.
A method for treating hair and/or skin using a device according to any one of claims 10-17.