WO2015060226A1 - Gloss composition, method for producing same and cosmetic preparation - Google Patents

Abstract

A gloss composition which contains: crystals containing a fatty acid glycol ester (A) represented by general formula (I) (wherein R¹ represents a hydrocarbon group having 13-21 carbon atoms; R² represents an alkylene group having 2-4 carbon atoms; m represents a number of 1-3, which is the average number of repetitions of (R²O); Y represents a hydrogen atom or R³CO-; and R³ represents a hydrocarbon group having 13-21 carbon atoms), a surfactant (B), an alcohol (C) having 8-22 carbon atoms, and water (D). In this gloss composition, the mass ratio of the component (C) to the component (A), namely, component (C)/component (A) is 0.2-1.5, and the breadth/length ratio of the crystals is less than 0.45. Y-O-(R²O)_m-CO-R¹ (I)

Description

Glossy composition, method for producing the same, and cosmetics

The present invention relates to a gloss composition, a method for producing the same, and a cosmetic.
This application claims priority on October 21, 2013 based on Japanese Patent Application No. 2013-218275 for which it applied to Japan, and uses the content here.

For cosmetics such as shampoos, rinses and body shampoos, a gloss composition is used to give a pearly luster, for example. As the gloss composition, a gloss composition containing a fatty acid glycol ester, a surfactant, water and a crystallization additive is known (for example, Patent Document 1).

Conventionally, in order to further increase the added value of cosmetics, while maintaining a pearl-like appearance, improving the texture of the processing object, such as smoothness when rinsing, volume on the hair, moisture on the skin, etc. Cosmetics designed for the purpose have been proposed.
For example, an anionic surfactant, a silicone derivative having a specific average particle diameter, a melting point of 55 to 75 ° C., at least a part of the crystalline form exists, and the ratio of the short diameter to the long diameter is 0.75 or less. A liquid detergent composition containing a pearlizing agent having a crystal form and a specific alcohol has been proposed (for example, Patent Document 2).

JP 2010-95518 A JP 2000-290148 A

However, cosmetics are required to further improve smoothness during rinsing and texture to be processed.
Therefore, an object of the present invention is to provide a glossy composition that imparts a pearly luster to a cosmetic and can further enhance the smoothness of the cosmetic during rinsing and the texture to be treated.

As a result of intensive studies, the present inventors have used a glossy composition containing crystals having a minor axis / major axis ratio of less than 0.45, so that smoothness during rinsing in cosmetics and the texture of the object to be treated are obtained. As a result, the present invention has been found.

The present invention has the following aspects [1] to [4].
[1] A crystal containing a fatty acid glycol ester (A) represented by the following general formula (I), a surfactant (B), an alcohol (C) having 8 to 22 carbon atoms, water (D), The mass ratio represented by the component (C) / the component (A) is 0.2 to 1.5, and the ratio represented by the minor axis / major axis of the crystal is 0.45. A gloss composition that is less than.
Y—O— (R ² O) _m —CO—R ¹ (I)
(In the formula (I), R ¹ represents a hydrocarbon group having 13 to 21 carbon atoms, R ² represents an alkylene group having 2 to 4 carbon atoms, and m represents an average number of repetitions of (R ² O). Y represents a hydrogen atom or R ³ CO—, and R ³ represents a hydrocarbon group having 13 to 21 carbon atoms.)
[2] The gloss composition according to [1], which also contains an aromatic carboxylic acid or a salt thereof (E).
[3] A cosmetic comprising the gloss composition according to [1] or [2].
[4] The method for producing a glossy composition according to [1], wherein the components (A) to (D) are mixed at a melting point or higher of the component (A) to obtain a mixture; A crystallization step of circulating the mixture to the crystallization tank and the cooler and cooling the mixture to a temperature below the freezing point of the component (A) using a production apparatus in which a tank and a cooler are connected. A method for producing a gloss composition.

That is, the present invention relates to the following.
[1 ′] a fatty acid glycol ester (A) represented by the following general formula (I), a surfactant (B), an alcohol (C) having 8 to 22 carbon atoms, and water (D);
The mass ratio represented by the component (C) / component (A) is 0.2 to 1.5;
The ratio represented by the minor axis / major axis of the crystal is less than 0.45. The gloss composition:
Y—O— (R ² O) _m —CO—R ¹ (I)
(In the formula (I), R ¹ represents a hydrocarbon group having 13 to 21 carbon atoms; R ² represents an alkylene group having 2 to 4 carbon atoms; m represents an average number of repetitions of (R ² O)) Y represents a hydrogen atom or R ³ CO—; R ³ represents a hydrocarbon group having 13 to 21 carbon atoms.)
[2 ′] The gloss composition according to [1 ′], further comprising an aromatic carboxylic acid or a salt thereof (E).
[3 ′] A cosmetic containing the gloss composition according to [1 ′] or [2 ′].
[4 ′] The method for producing a glossy composition according to [1 ′] using a production apparatus including a crystallization tank and a cooler,
In the manufacturing apparatus, the crystallization tank and the cooler are connected,
The manufacturing method includes:
A mixing step of mixing the components (A) to (D) above the melting point of the component (A) to obtain a mixture;
A crystallization step of circulating the mixture through the crystallization tank and the cooler, cooling the mixture to a temperature below the freezing point of the component (A), and precipitating the crystals containing the component (A);
A method for producing a glossy composition comprising:

According to the gloss composition of the present invention, a pearl-like gloss is imparted to the cosmetic, and the smoothness of the cosmetic during rinsing and the texture of the treatment target can be further enhanced.

It is a schematic diagram which shows an example of the manufacturing apparatus of the glossy composition used for manufacture of the glossy composition which is one Embodiment of this invention. 2 is a photomicrograph of the gloss composition of Example 1-1. 2 is a photomicrograph of the gloss composition of Example 1-11. 2 is a photomicrograph of the gloss composition of Comparative Example 1-1.

(Glossy composition)
The gloss composition according to an embodiment of the present invention includes a crystal (hereinafter referred to as gloss crystal) containing a fatty acid glycol ester (A) represented by the following general formula (I), a surfactant (B), A composition containing alcohol (C) having 8 to 22 carbon atoms and water (D), for example, a composition in which the glossy crystals are dispersed in water. The “gloss composition” in the present invention means a composition that imparts pearly luster to cosmetics and the like. Cosmetics include body shampoos, body shampoos, hand soaps, face soaps, and other body care products; hair rinses, body treatments and other body care products, and hair and skin after washing. And liquid preparations used for skin care.
Here, “dispersion” means that the glossy crystals are not settled in water.
“Crystal” may include an amorphous solid.

Y—O— (R ² O) _m —CO—R ¹ (I)
(In the formula (I), R ¹ represents a hydrocarbon group having 13 to 21 carbon atoms; R ² represents an alkylene group having 2 to 4 carbon atoms; m represents an average number of repetitions of (R ² O)) Y represents a hydrogen atom or R ³ CO—; R ³ represents a hydrocarbon group having 13 to 21 carbon atoms.)

The glossy crystal has a minor axis / major axis ratio (hereinafter sometimes referred to as minor axis / major axis ratio) of less than 0.45, preferably a minor axis / major axis ratio of less than 0.35, The major axis ratio is more preferably less than 0.30.
If the ratio of the minor axis / major axis is less than the above upper limit, the smoothness at the time of rinsing in the cosmetic and the texture of the treatment object can be enhanced. This is thought to be because gloss crystals are entangled with each other and other components in the cosmetic (for example, silicone compounds and cationic polymers described later) are taken in and easily attached to the hair or skin to be treated. .
Note that “the glossy crystals are intertwined” means a state in which the end portions are in contact with each other or the end portions and the side portions do not overlap on the side surfaces in the major axis direction.
The lower limit of the minor axis / major axis ratio of the glossy crystal is not particularly limited, but is substantially 0.10, and is preferably 0.20 from the viewpoint of production efficiency.
That is, in the glossy crystal, the ratio expressed by the minor axis / major axis is preferably 0.10 or more and less than 0.45, more preferably 0.10 or more and less than 0.35, and more preferably 0.20 or more and 0.35. Is more preferably 0.20 or more and less than 0.30.
The minor axis / major axis ratio of the glossy crystals is determined by measuring the major axis and minor axis of any 10 glossy crystals using a microscope, and calculating the average value of the measured major axis and the average value of the minor axis, It is a value obtained by further calculating the minor axis / major axis from these calculated values (that is, the average value of the minor axis / major axis ratio).
Here, the “major axis” of the glossy crystal means the maximum value in the size of the glossy crystal, and the “minor axis” means the minimum value in the size of the glossy crystal.
The percentage of glossy crystals having a minor axis / major axis ratio of less than 0.45 among the glossy crystals contained in the glossy composition (hereinafter sometimes referred to as long crystal ratio) is the total number of glossy crystals contained in the glossy composition. On the other hand, it is preferably 50% (number conversion) or more, more preferably 75% or more, and may be 100%. If the long crystal ratio is equal to or higher than the lower limit, the smoothness of the rinsing feeling in the cosmetic and the texture of the treatment target can be further improved.
The long crystal ratio is obtained by diluting the obtained dispersion 20 times with ion-exchanged water, photographing with 5 or more fields of view with a microscope, and arbitrarily measuring the short and long diameters of 50 crystals from each field. Can do.

The size of the glossy crystal is not particularly limited. For example, the major axis is preferably 0.8 μm or more, more preferably 1.5 μm or more, and further preferably 2.0 μm or more. If it is less than the said lower limit, it will become difficult to intertwine glossy crystals, and there exists a possibility that the smoothness at the time of a rinse in cosmetics and the texture of a process target may fall. The upper limit value of the major axis is not particularly limited, and is preferably 4.0 μm, for example, and more preferably 3.0 μm. Above the upper limit, the size of the tangled glossy crystals becomes too large and stickiness tends to occur.
That is, the major axis of the glossy crystal is preferably 0.8 μm or more and 4.0 μm or less, more preferably 1.5 μm or more and 4.0 μm or less, further preferably 2.0 μm or more and 4.0 μm or less, and 2.0 μm or more. 3.0 μm or less is particularly preferable.
The minor axis of the glossy crystal is not particularly limited, but is preferably 0.3 μm or more, and more preferably 0.4 μm or more. If it is less than the said lower limit, it will become easy to crush at the time of a rinse. The upper limit of the minor axis is not particularly limited, and is preferably 1.2 μm or less, and more preferably 1.0 μm or less. This is because when the value exceeds the upper limit, the glossy crystals are less likely to be entangled with each other.
That is, the minor axis of the glossy crystal is preferably 0.3 μm or more and 1.2 μm or less, more preferably 0.4 μm or more and 1.2 μm or less, further preferably 0.3 μm or more and 1.0 μm or less, and 0.4 μm. As mentioned above, 1.0 micrometer or less is especially preferable.

The viscosity of the gloss composition is not particularly limited, and is preferably 50 to 200 mPa · s, for example.
The viscosity of the gloss composition is a value read 60 seconds after the start of rotor rotation using a BL type viscometer (rotor: No. 3, rotation speed: 60 rpm, measurement temperature: 25 ° C., manufactured by Toki Sangyo Co., Ltd.). is there.
In this specification, the viscosity is defined as a value at 25 ° C. unless otherwise specified. That is, even if the value is outside the range specified in the present specification, it is included in the scope of the present invention as long as it is a viscosity value within the range specified in the present specification when corrected to a value at 25 ° C.

<Fatty acid glycol ester (A)>
The fatty acid glycol ester (A) (hereinafter sometimes referred to as the component (A)) is represented by the following general formula (I).
Y—O— (R ² O) _m —CO—R ¹ (I)

In the formula (I), R ¹ represents a hydrocarbon group having 13 to 21 carbon atoms.
R ¹ may have an unsaturated bond or may not have an unsaturated bond. R ¹ is preferably an alkyl group or an alkenyl group.
R ¹ may be a straight chain or a branched chain.
R ¹ has 13 to 21 carbon atoms, preferably 16 to 20 carbon atoms. If the number of carbon atoms is less than the lower limit, the melting point is low and unstable, and if it exceeds the upper limit, the melting point and the solidification temperature increase, resulting in a decrease in production efficiency.
R ¹ is preferably, for example, a pentadecyl group, a heptadecyl group, a heneicosyl group, or the like.
Y represents a hydrogen atom or R ³ CO—. When Y is a hydrogen atom, the component (A) is a mono fatty acid ester, and when Y is R ³ CO—, the component (A) is a di fatty acid ester.
Y ^is, when an R 3 CO-, as the ^{R 3,} include the same groups as ^{R 1.} R ³ may be the same group as R ¹ or a different group.
R ² represents an alkylene group having 2 to 4 carbon atoms. That is, (R ² O) is an oxyalkylene group having 2 to 4 carbon atoms. R ² preferably has 2 to 3 carbon atoms. If the carbon number of R ² is within the above range, crystallization is easy.
m represents the average number of repetitions of (R ² O) and is a number of 1 to 3, more preferably 1 to 2. Note that m may be an integer or may include a decimal.
Here, “the average number of repetitions of (R ² O)” means the average number of moles of R ² O added to 1 mole of the fatty acid ester used.
If m is in the above range, it becomes water-insoluble and stable glossy crystals can be obtained even in the presence of the surfactant (B).

The melting point of the component (A) is preferably 50 ° C. or higher, more preferably 50 to 90 ° C., and further preferably 60 to 80 ° C. If the amount is less than the lower limit, the stability of the glossy crystals in the presence of the surfactant (B) may be lowered. If the amount exceeds the upper limit, the melting point is high, so that the surfactant (B ) May decrease in stability.
The freezing point of component (A) is preferably less than 80 ° C, more preferably 40 to 70 ° C.

As component (A), monoethylene glycol form of mono fatty acid ester such as ethylene glycol monopalmitate, ethylene glycol monostearate, ethylene glycol monoisostearate; ethylene glycol dipalmitate, ethylene glycol distearate, ethylene glycol dibehenate Mono-fatty acid ester monoethylene glycol bodies; mono-fatty acid esters or di-fatty acid ester diethylene glycol bodies; mono-fatty acid esters or di-fatty acid ester triethylene glycol bodies, and the like. Among these, as the component (A), a monoethylene glycol body is preferable, a monoethylene glycol body of a difatty acid ester is more preferable, and ethylene glycol distearate is further preferable.
These (A) components may be used individually by 1 type, and may be used in combination of 2 or more type.

The lower limit of the content of the component (A) in the gloss composition is preferably 2% by mass, more preferably 3% by mass, and still more preferably 4% by mass with respect to the total mass of the gloss composition. The upper limit of the content of the component (A) in the gloss composition is preferably 10% by mass, more preferably 7% by mass, and still more preferably 6% by mass with respect to the total mass of the gloss composition.
That is, the content of the component (A) in the gloss composition is preferably 2% by mass or more and 10% by mass or less, more preferably 3% by mass or more and 7% by mass or less with respect to the total mass of the gloss composition. 4 mass% or more and 6 mass% or less are more preferable.
In addition, "content of (A) component" here means the total amount of (A) component which is a crystalline state, and (A) component which is not a crystalline state in a glossy composition.
If it is less than the said lower limit, in order to provide sufficient gloss to cosmetics, there exists a possibility that the compounding quantity of a glossy composition must be raised too much. If it exceeds the upper limit, the fluidity may be impaired and handling may be complicated.

<Surfactant (B)>
The gloss composition contains a surfactant (B) (hereinafter sometimes referred to as component (B)).
The component (B) can increase the dispersibility of the component (A) in the dispersion medium and reduce the minor axis / major axis ratio of the glossy crystal in the method for producing a gloss composition described later.
Examples of the component (B) include anionic surfactants, nonionic surfactants, and amphoteric surfactants.
Examples of the anionic surfactant include higher fatty acid salts having 8 to 22 carbon atoms, polyoxyethylene alkyl ether sulfate, α-olefin sulfonate, alkyl sulfonate, alkyl sulfate, N-acyl glutamate and the like. Examples of the counter ion of the anionic surfactant include alkali metal ions, alkaline earth metal ions, ammonium ions, alkanolamines having 1 to 3 alkanol groups having 2 or 3 carbon atoms, and the like.
Examples of the nonionic surfactant include lauric acid monoethanolamide, coconut oil fatty acid diethanolamide, polyoxyethylene alkylphenyl ether, polyoxyethylene alkyl ether, and polyoxyethylene lauric acid monoethanolamide.
Examples of the amphoteric surfactant include alkyl dimethyl carboxymethyl ammonium betaine, alkyl carboxymethyl imidazolium betaine, N- (N′-acylaminoalkyl) -N-hydroxyalkylaminocarboxylate and the like.
As the component (B), an anionic surfactant is preferable from the viewpoint of enhancing the dispersibility of the component (A) in the component (D), polyoxyethylene alkyl ether sulfate is more preferable, and 1 to 5 mol of ethylene oxide is used. The ammonium salt or sodium salt of polyoxyethylene alkyl ether sulfate having an added alkyl group having 12 to 14 carbon atoms is more preferable.
These (B) components may be used individually by 1 type, and may be used in combination of 2 or more type.

The lower limit of the content of the component (B) in the gloss composition is preferably 5% by mass and more preferably 10% by mass with respect to the total mass of the gloss composition. The upper limit of the content of the component (B) in the gloss composition is preferably 30% by mass and more preferably 20% by mass with respect to the total mass of the gloss composition. That is, the content of the component (B) in the gloss composition is preferably 5% by mass or more and 30% by mass or less, and more preferably 10% by mass or more and 20% by mass or less with respect to the total mass of the gloss composition. . If the ratio is less than the lower limit, it is difficult to reduce the minor axis / major axis ratio of the glossy crystal. If the ratio exceeds the upper limit, the fluidity is impaired and handling may be complicated.

In the glossy composition, the mass ratio represented by component (A) / component (B) (hereinafter sometimes referred to as A / B ratio) is preferably 0.1 to 0.5, preferably 0.2 to 0.00. 4 is more preferable. If it is more than the said lower limit, a glossy crystal can be easily precipitated in the crystallization process mentioned later, and if it is below the said upper limit, it will be easy to obtain a fine glossy crystal.

<Alcohol having 8 to 22 carbon atoms (C)>
The gloss composition contains an alcohol (C) having 8 to 22 carbon atoms (hereinafter sometimes referred to as component (C)). By containing the component (C), in the method for producing a gloss composition described later, the dispersibility of the component (A) in the component (D) is increased, and fine gloss crystals having a smaller minor axis / major axis ratio are obtained. can get.

The component (C) may be a saturated aliphatic alcohol or an unsaturated aliphatic alcohol.
The hydrocarbon group in component (C) may be linear or branched. From the viewpoint of obtaining finer glossy crystals, the component (C) is preferably an aliphatic alcohol having 12 to 22 carbon atoms such as lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, lauryl alcohol, myristyl alcohol, Aliphatic alcohols having 12 to 18 carbon atoms such as cetyl alcohol and stearyl alcohol are more preferred.

As the component (C), cetyl alcohol and stearyl alcohol are preferred from the viewpoint of reducing the minor axis / major axis ratio of the glossy crystal.
These (C) components may be used alone or in combination of two or more.

The lower limit of the content of the component (C) in the gloss composition is preferably 1% by mass, more preferably 2% by mass, and still more preferably 3% by mass with respect to the total mass of the gloss composition. The upper limit of the content of the component (C) in the gloss composition is preferably 10% by mass, more preferably 6% by mass, and still more preferably 4% by mass with respect to the total mass of the gloss composition. That is, the content of the component (C) in the gloss composition is preferably 1% by mass or more and 10% by mass or less, more preferably 2% by mass or more and 6% by mass or less, and more preferably 3% by mass or more and 4% by mass or less. Is more preferable. If it is more than the said lower limit, the breadth / major axis ratio of a glossy crystal can be made smaller, and if it is below the said upper limit, it will be easy to suppress the sticky feeling of a process target.

In the glossy composition, the mass ratio represented by component (C) / component (A) (hereinafter sometimes referred to as C / A ratio) is 0.2 to 1.5. The lower limit value of the C / A ratio is preferably 0.4, and more preferably 0.6. The upper limit value of the C / A ratio is preferably 1.3, and more preferably 1.0.
That is, in the glossy composition, the mass ratio represented by the component (C) / component (A) is preferably 0.4 or more and 1.3 or less, and more preferably 0.6 or more and 1.0 or less.
If the C / A ratio is not less than the above lower limit, the minor / major axis ratio of the glossy crystal can be further reduced. If it is below the upper limit, the minor axis / major axis ratio of the glossy crystal can be made smaller, and the stickiness of the object to be treated can be easily suppressed.

In the gloss composition, the mass ratio represented by component (B) / component (C) (hereinafter sometimes referred to as B / C ratio) is preferably from 2 to 10, and more preferably from 4 to 8. If it is more than the said lower limit, (C) component will become easy to melt | dissolve and it will be easy to manufacture a glossy crystal, and if it is below the said upper limit, the minor axis / major axis ratio of a glossy crystal can be made smaller.

<Water (D)>
The glossy composition contains water (D) (hereinafter sometimes referred to as component (D)). The component (D) mainly serves as a dispersion medium for the gloss composition.
The content of water in the gloss composition is preferably 25 to 90% by mass, more preferably 40 to 90% by mass, and still more preferably 50 to 80% by mass with respect to the total mass of the gloss composition. If the amount is less than the above lower limit value, the fluidity may be impaired and handling may be complicated. If the amount exceeds the upper limit value, the amount of the gloss composition is excessively increased in order to impart sufficient gloss to the cosmetic. It may be necessary.

<Aromatic carboxylic acid or salt thereof (E)>
The gloss composition may contain an aromatic carboxylic acid or a salt thereof (E) (hereinafter sometimes referred to as component (E)). The component (E) makes it easy to obtain glossy crystals having a smaller minor axis / major axis ratio in the method for producing a glossy composition described later.
The reason why the glossy crystal becomes longer and the minor axis / major axis ratio becomes smaller by containing the component (E) is not clear, but is presumed as follows.
In the method for producing a glossy composition described later, the component (E) acts on the emulsified particles obtained by emulsifying the components (A) to (C), and increases the solubility of the emulsified particles in the component (D). For this reason, the supersaturation degree of the whole mixture becomes low, and excessive precipitation of glossy crystal nuclei is suppressed. When the number of glossy crystal nuclei precipitated is reduced, aggregation of fine crystals is suppressed, and it is considered that it is easy to grow into a long glossy crystal.
As the component (E), benzoic acid, phthalic acid, terephthalic acid, isophthalic acid, salicylic acid or a salt thereof is preferable. As the salt, alkali metal salts, alkaline earth metal salts, ammonium salts, and alkanolamine salts are preferable.

The content of the component (E) in the gloss composition is preferably 0.2 to 3% by mass and more preferably 0.5 to 1.5% by mass with respect to the total mass of the gloss composition. If it is less than the lower limit, it is difficult to obtain the effect of the component (E), and if it exceeds the upper limit, gloss crystals are hardly formed.
In the glossy composition, the mass ratio represented by component (A) / component (E) (hereinafter sometimes referred to as A / E ratio) is preferably 1 to 10, and more preferably 3 to 6. If it is at least the above lower limit value, it is easy to make the minor axis / major axis ratio of the glossy crystal smaller, and if it is at most the above upper limit value, it is easy to suppress the formation of coarse crystals.
In the glossy composition, the mass ratio represented by component (B) / component (E) (hereinafter sometimes referred to as B / E ratio) is preferably 5 to 60, and more preferably 10 to 30. If the B / E ratio is within the above range, it is easy to make the minor axis / major axis ratio of the glossy crystal smaller.

<Other optional components of the gloss composition>
In addition to the components (A) to (E), the gloss composition is a pH adjuster, a monovalent alcohol (arbitrary alcohol) other than the component (C), polyol, preservative, salts and other optional components (for gloss composition) Optional components).
Examples of the pH adjuster include triethanolamine and citric acid. The glossy composition preferably has a pH of 4.5 to 6.0.

(Glossy composition production method)
The method for producing a gloss composition according to an embodiment of the present invention comprises a mixing step of mixing the components (A) to (D) at a melting point or higher of the component (A) to obtain a mixture, and the mixture as a crystallization tank. A crystallization step of circulating and cooling to a cooler.

The manufacturing method of a glossy composition is demonstrated with reference to FIG. 1 below. FIG. 1 is a schematic diagram showing an example of a glossy composition production apparatus (hereinafter sometimes simply referred to as production apparatus) according to an embodiment of the present invention.
The manufacturing apparatus 1 in FIG. 1 includes a crystallizer 10 and a cooler 20. The crystallizer 10 and the cooler 20 are connected by a first pipe 22 and a second pipe 26, and a pump 24 is provided in the first pipe 22.

The crystallizer 10 includes a crystallization tank 12 and a stirring blade 14 provided in the crystallization tank 12.
The crystallization tank 12 may be any crystallization tank whose inside can be adjusted to an arbitrary temperature, and examples thereof include a jacketed container.
Examples of the cooler 20 include a spiral heat exchanger, which is a liquid-liquid heat exchanger, a plate heat exchanger, a double tube heat exchanger, a multi-tube cylindrical heat exchanger, and a multi-tube heat Air-cooled type that is a heat exchanger, spiral tube heat exchanger, spiral plate heat exchanger, tank coil heat exchanger, tank jacket heat exchanger, direct contact liquid-liquid heat exchanger, gas-liquid heat exchanger A heat exchanger, a direct contact gas-liquid heat exchanger, a fin tube heat exchanger, etc. are mentioned. Among the above, a double tube heat exchanger, a multi-tube cylindrical heat exchanger, and a multiple tube heat exchanger are preferable.
The pump 24 includes a turbo pump such as a spiral pump, a turbine pump, an axial pump, and a mixed flow pump; a constant capacity pump such as a gear pump, a direct acting steam pump, a plunger pump, and a piston pump; a jet pump, an air lift pump, Special pumps such as water hammer pumps and diaphragm pumps are listed.

First, components (A) to (D) and, if necessary, optional components for the gloss composition (component (E), pH adjuster, monovalent alcohol (optional alcohol) other than component (C), polyol, (At least one component selected from the group consisting of preservatives and salts) is charged into the crystallization tank 12 and stirred to obtain a mixture 30 while being heated to a temperature equal to or higher than the melting point of the component (A) (mixing step). ).

The order of mixing the components in the mixing step is not particularly limited. For example, all the components used for the production of the gloss composition are charged into the crystallization tank 12 and heated to a temperature equal to or higher than the melting point of the component (A). The components may be mixed (collective mixing method) while mixing, or the components may be mixed (split mixing method) while being sequentially introduced into the crystallization tank 12. In the split mixing method, arbitrary components among the components used for the production of the gloss composition are mixed (first mixing operation), and then the remaining components not used in the first mixing operation are mixed. (Second mixing operation) method may be mentioned.

In the first mixing operation, for example, the component (B) and the component (D) may be mixed, or the component (A), the component (B), and the component (D) may be mixed. Among these, from the viewpoint of reducing the minor axis / major axis ratio of the glossy crystal, the first mixing operation is carried out by adding the component (B), the component (C), and the component (D) above the melting point of the component (C). It is preferable to mix at a temperature. That is, as the split mixing method, the component (B), the component (C), and the component (D) are mixed at a temperature equal to or higher than the melting point of the component (C), and then the second mixing operation is performed. It is preferable to add the component (A) to the primary mixture obtained by the first mixing operation at a temperature equal to or higher than the melting point of the component (A) and to mix at a temperature equal to or higher than the melting point of the component (A).
When mixing the (B) component, the (C) component, and the (D) component in the first mixing operation, in the second mixing operation, the (A) component is previously melted at a temperature equal to or higher than the melting point of the (A) component. In addition, this is added to the primary mixture of the component (B), the component (C), and the component (D) obtained by the first mixing operation, and mixed at a temperature equal to or higher than the melting point of the component (A). Is preferred.

When blending the optional component for the gloss composition in the split mixing method, the addition timing of the optional component for the gloss composition is determined in consideration of the type of the optional component for the gloss composition.
For example, when the component (E) is used as an optional component for the gloss composition, the component (E) is preferably mixed in the first mixing operation. (E) A glossy crystal can be made longer because a component is mixed by 1st mixing operation.
That is, when the component (E) is used as an optional component for the gloss composition, the first mixing operation mixes the component (B), the component (C), the component (D), and the component (E), Subsequently, it is preferable to add and mix (A) component to the primary mixture obtained by said 1st mixing operation by 2nd mixing operation.
In addition, when an optional component other than the component (E) is also included as an optional component for the gloss composition, the first mixing operation includes the component (B), the component (C), the component (D), and the component (E). Then, in the second mixing operation, the components (A) and optional components other than the component (E) are melt-mixed, and this is added to the primary mixture obtained in the first mixing operation. It is preferable to mix.

The blending amount of component (A) in the mixing step is based on the total mass of the mixture in which all the components used for producing the gloss composition are mixed (that is, the total amount of all the components used for producing the gloss composition). The content is preferably 2 to 10% by mass, more preferably 3 to 7% by mass, and still more preferably 4 to 6% by mass. If the amount is less than the lower limit, the content of the glossy crystal in the glossy composition is too small, and the blending amount of the glossy composition may have to be excessively increased in order to impart sufficient gloss to the cosmetic. is there.
If it exceeds the upper limit, the fluidity may be impaired and handling may be complicated.

The blending amount of component (B) in the mixing step is based on the total mass of the mixture in which all the components used for producing the gloss composition are mixed (that is, the total amount of all the components used for producing the gloss composition). 5 to 30% by mass is preferable, and 10 to 20% by mass is more preferable. If the ratio is less than the lower limit, it is difficult to reduce the minor axis / major axis ratio of the glossy crystal. If the ratio exceeds the upper limit, the fluidity is impaired and handling may be complicated.

The blending amount of component (C) in the mixing step is based on the total mass of the mixture in which all the components used for producing the gloss composition are mixed (that is, the total amount of all the components used for producing the gloss composition). 1 to 10% by mass is preferable, and 2 to 6% by mass is more preferable. If it is more than the said lower limit, the breadth / major axis ratio of a glossy crystal can be made smaller, and if it is below the said upper limit, it will be easy to suppress the sticky feeling of a process target.

The blending amount of component (D) in the mixing step is based on the total mass of the mixture in which all components used for producing the gloss composition are mixed (that is, the total amount of all components used for producing the gloss composition). The content is preferably 25 to 90% by mass, more preferably 40 to 90% by mass, and still more preferably 50 to 80% by mass.
If the amount is less than the above lower limit value, the fluidity may be impaired and handling may be complicated. If the amount exceeds the upper limit value, the amount of the gloss composition is excessively increased in order to impart sufficient gloss to the cosmetic. It may be necessary.

When the component (E) is used as an optional component for the gloss composition, the blending amount of the component (E) in the mixing step is the total mass of the mixture in which all the components used for the production of the gloss composition are mixed (that is, the gloss The total amount of all components used in the production of the composition is preferably 0.2 to 3% by mass, more preferably 0.5 to 1.5% by mass. If it is less than the lower limit, it is difficult to obtain the effect of the component (E), and if it exceeds the upper limit, gloss crystals are hardly formed.

The A / B ratio in the mixing step is preferably from 0.1 to 0.5, more preferably from 0.2 to 0.4. If it is more than the said lower limit, a glossy crystal can be easily precipitated in the crystallization process mentioned later, and if it is below the said upper limit, it will be easy to obtain a fine glossy crystal. The C / A ratio in the mixing step is 0.2 to 1.5. The lower limit value of the C / A ratio is preferably 0.4, and more preferably 0.6. The upper limit value of the C / A ratio is preferably 1.3, and more preferably 1.0. That is, the C / A ratio is preferably 0.4 or more and 1.3 or less, and more preferably 0.6 or more and 1.0 or less. If the C / A ratio is not less than the above lower limit, the minor / major axis ratio of the glossy crystal can be further reduced. If it is below the upper limit, it is easy to control the precipitation of crystals in the crystallization step, and the minor axis / major axis ratio of the glossy crystals can be made smaller.
The B / C ratio in the mixing step is preferably from 2 to 10, and more preferably from 4 to 8. If the B / C ratio is equal to or higher than the lower limit, the component (C) is easily dissolved and a glossy crystal can be easily produced. If the B / C ratio is equal to or lower than the upper limit, the minor axis / major axis ratio of the glossy crystal can be further reduced. .
The A / E ratio in the mixing step is preferably 1 to 10, and more preferably 3 to 6. If the A / E ratio is not less than the above lower limit value, the minor axis / major axis ratio of the glossy crystal can be made smaller, and if it is not more than the above upper limit value, the formation of coarse crystals can be easily suppressed.
The B / E ratio in the mixing step is preferably 5 to 60, and more preferably 10 to 30. If the B / E ratio is within the above range, it is easy to make the minor axis / major axis ratio of the glossy crystal smaller.

The temperature in the mixing step (mixing temperature) is equal to or higher than the melting point of the component (A), preferably 1 to 30 ° C. higher than the melting point of the component (A), and 1 to 20 ° C. higher than the melting point of the component (A). Temperature is more preferred. If the ratio is less than the lower limit, the ratio of the minor axis / major axis of the glossy crystal may be large and coarse, and if the ratio exceeds the upper limit, the cooling time may be long and the production efficiency may be reduced.
In addition, the mixing temperature is preferably a temperature at which the components (A) to (C) can be melted. For example, the mixing temperature is preferably 75 to 90 ° C, more preferably 75 to 85 ° C.

The mixing step is preferably performed under weak stirring conditions. By performing the mixing step with weak stirring, the minor axis / major axis ratio of the glossy crystal can be easily reduced.
In this paper, “weak stirring” is a condition where n ³ d ⁵ /V=0.01 to 10. As the stirring condition in the mixing step, n ³ d ⁵ /V=0.05 to ⁵ is preferable, and n ³ d ⁵ /V=0.1 to 2 is more preferable.
In n ³ d ⁵ / V, n represents the rotation speed (rpm) of the stirring blade.
d indicates the blade diameter (m) of the stirring blade (corresponding to d1 in FIG. 1). Note that the “blade diameter of the stirring blade” here refers to the stirring blade when the crystallization tank is viewed from directly above. The diameter in the circumscribed circle.
V represents the volume (m ³ ) of the mixed solution.
In the mixing step, the stirring blade 14 may be operated continuously or intermittently. The “intermittent operation” includes an operation in which the mixing is stopped and then restarted again, for example, when defoaming occurs when foaming is severe.

That is, one aspect of the mixing step according to the method for producing a glossy composition which is an embodiment of the present invention is:
Components (A) to (D), and optionally, optional components for gloss compositions (component (E), pH adjuster, monohydric alcohol (arbitrary alcohol) other than component (C)), polyols, preservatives, salts At least one component selected from the group consisting of: a crystallization tank and stirring while heating at the mixing temperature to obtain a mixture;
The mixing step includes
All of the components are charged into the crystallization tank and mixed by a batch mixing method in which the components are mixed while heating to the mixing temperature, or at the mixing temperature while all of the components are sequentially added to the crystallization tank. Including mixing by a split mixing method of mixing;
The split mixing method is:
A first mixing operation of mixing a component (B), a component (C), a component (D), and optionally a component (E) to obtain a primary mixture;
And a second mixing operation of adding and mixing the component (A) and an optional component other than the component (E) as required to the primary mixture.
The mixing temperature is preferably equal to or higher than the melting point of the component (A).
The mixing is preferably carried out by stirring continuously or intermittently with weak stirring where n ³ d ⁵ /V=0.01 to 10.

Next, heating of the mixture 30 in the crystallization tank 12 at the mixing temperature is stopped, and the pump 24 is started. When the pump 24 is activated, the mixture 30 in the crystallization tank 12 enters the cooler 20 via the first pipe 22. The mixture 30 that has entered the cooler 20 flows through the cooler 20 and is cooled. The mixture 30 circulated through the cooler 20 returns to the crystallization tank 12 via the second pipe 26. Thus, the mixture 30 in the crystallization tank 12 circulates between the crystallization tank 12 and the cooler 20 (crystallization process).
Thus, a part of the mixture 30 in the crystallization tank 12 is continuously extracted, cooled by the cooler 20, and returned to the crystallization tank 12, thereby precipitating a glossy crystal and the gloss composition of the present invention. obtain.

The cooling temperature in the cooler 20 (that is, the temperature of the cooler (refrigerant)) is a temperature not higher than the freezing point of the component (A), preferably 5 to 20 ° C. lower than the freezing point of the component (A). The temperature is preferably 5 to 15 ° C. lower than the freezing point of the component. Examples of the cooling temperature in the cooler 20 include 10 to 40 ° C. If the ratio is less than the above lower limit, the minor axis / major axis ratio of the glossy crystals is unlikely to be small, and if the ratio exceeds the upper limit, fine aggregates of glossy crystals may be generated. The cooling temperature in the cooler 20 can be adjusted by setting the temperature of the refrigerant within the above range.

The cooling rate in the cooler 20 is not particularly limited. For example, the cooling rate is preferably a condition for lowering the mixture 30 in the crystallization tank 12 at 0.1 to 20 ° C./min, and a condition for lowering the mixture 30 in the crystallization tank 12 at 0.1 to 10 ° C./min. More preferably, the conditions for lowering the mixture 30 in the crystallization tank 12 at 0.1 to 5 ° C./min are more preferable. Since the crystallization can be performed in a short time if the above lower limit is exceeded, the production efficiency of the glossy composition can be improved. Of less than 0.45.

The circulation speed of the mixture 30 in the crystallization step is determined in consideration of the amount of the mixture 30 in the crystallization tank 12, the cooling temperature in the cooler 20, and the like. For example, it is preferable that 0.01 to 0.5 times the amount of the mixture 30 per minute be passed through the cooler 20 and returned to the crystallization tank 12.

The time of the crystallization process is not particularly limited, and the time when the mixture 30 in the crystallization tank 12 reaches the crystallization end temperature is defined as the end point of the crystallization process.
The crystallization end temperature is not particularly limited, and may be any temperature below the freezing point of component (A), more preferably 5 to 40 ° C. lower than the freezing point of component (A), and 10 times higher than the freezing point of component (A). A temperature of ˜35 ° C. is more preferred. The crystallization end temperature is preferably, for example, 10 to 45 ° C, more preferably 30 to 40 ° C.
The mixture 30 cooled by the cooler 20 is returned to the crystallization tank 12, and the temperature of the mixture 30 in the crystallization tank 12 decreases. The time required for the temperature of the mixture 30 in the crystallization tank to fall below the melting point of the component (A) and below the freezing point is preferably 5 to 30 minutes, more preferably 10 to 20 minutes. If it is in the above-mentioned range, it is easy to obtain a glossy crystal that is fine and has a smaller minor axis / major axis ratio.

An aging step may be provided after the crystallization step. By providing the aging step, the glossy crystal can be further elongated, and the minor axis / major axis ratio of the glossy crystal can be further reduced.
The aging step is a step of maintaining the gloss composition at a temperature of 30 to 60 ° C. for 2 to 24 hours, for example.
As the aging method, for example, a method of circulating the glossy composition in the crystallization tank 12 to the cooler 20 in the same manner as the crystallization process, a method of stopping the pump 24 and maintaining the inside of the crystallization tank 12 at an arbitrary temperature. A method of putting the glossy composition in the crystallization tank 12 in another container and maintaining the container at an arbitrary temperature can be mentioned. In the aging step, the glossy composition may or may not be stirred.
However, from the viewpoint of preventing the lustrous crystals from being crushed, it is preferable not to stir.
The temperature of the aging step (aging temperature) is determined in consideration of the type of the component (A) and the like, and is below the melting point. The aging temperature is preferably 30 to 60 ° C., for example. If the aging temperature is not less than the above lower limit value, the growth time of the glossy crystal can be further shortened. .
The time of the ripening step (ripening time) is determined in consideration of the desired minor diameter / major diameter ratio of the glossy crystal and is preferably, for example, 2 to 24 hours. If the aging time is equal to or greater than the above lower limit value, the glossy crystal can be elongated to make the minor axis / major axis ratio of the glossy crystal smaller. And is less likely to be crushed.

In the above-described embodiment, the mixing step is performed by the crystallizer 10. However, the present invention is not limited to this, and the mixture 30 is prepared by an apparatus other than the crystallizer 10, and the mixture 30 is crystallized. You may throw into the tank 12.

That is, one aspect of the crystallization process according to the method for producing a glossy composition which is an embodiment of the present invention is a crystallization process in which the mixture obtained in the mixing process is circulated between a crystallization tank and a cooler for cooling. Is;
The cooling temperature in the cooler is 5 to 20 ° C. lower than the freezing point of the component (A),
The cooling rate of the mixture in the crystallization tank is 0.1-20 ° C./min;
The circulation speed in the circulation is a speed at which 0.01 to 0.5 times the amount of the mixture in the crystallization tank per 1 minute is passed through the cooler and returned to the crystallization tank. ;
The time of the said crystallization process is a crystallization process which is until the mixture in the said crystallization tank reaches the crystallization completion temperature.
The crystallization step time is preferably 5 to 30 minutes, and the crystallization end temperature is preferably 5 to 40 ° C. lower than the freezing point of the component (A).

One aspect of the manufacturing method of the glossy composition which is one embodiment of the present invention is:
A mixing step in which the components (A) to (D) are mixed at a melting point or higher of the component (A) to obtain a mixture, a crystallization step in which the mixture is circulated through a crystallization tank and a cooler, and a ripening step; ,including.
In the aging step, the aging temperature is preferably 30 to 60 ° C., and the aging time is preferably 2 to 24 hours.

After cooling is completed, the sample is transferred from the crystallization tank to a transfer aging tank or storage tank. As a transfer method, a method of utilizing gravity by setting the transfer destination to a low ground or a pump is used.
As the pump, a pump having a relatively low shear (a rotary pump, a Mono pump, a gear pump, a sine pump, etc.) is preferable so that the crystal is not crushed and the ratio of the short axis / long axis is not increased.
Depending on the situation, either crystallization tank to storage tank, ripening tank to storage tank, or crystallization tank to aging tank, filtration is performed to remove foreign substances that are harmful to the control of crystal agglomeration and short / long diameter ratio control. It is preferable to install a vessel. As the opening of the filter, it is preferable to select the smallest one in consideration of productivity within a range of 300 μm or less.
For the aging tank and storage tank, a device capable of heating and cooling is selected as necessary.
It is added and mixed from the storage tank to the final product, and in that case, using the same pump as the above transfer method, it is added to the upper surface of the blending tank or in the liquid, When the difference in viscosity is large, the mixing efficiency can be improved by using means such as adding to the inlet side of a centrifugal pump or the like.
It is preferable to use the above-described pump and filtration device for transfer from the final product blending tank to the product storage tank.

(Cosmetics)
The cosmetic which is one embodiment of the present invention contains a gloss composition.
The content of the gloss composition in the cosmetic is not particularly limited, but is preferably 10 to 50% by mass, more preferably 20 to 40% by mass, and more preferably 30 to 40% by mass with respect to the total mass of the cosmetic. Is more preferable. If it is less than the lower limit, the gloss of the cosmetic may be lowered, and if it exceeds the upper limit, the function of the cosmetic such as a cleaning power or a texture to be treated may be lowered.
The cosmetic may contain a silicone compound (F), a cationic polymer (G) and the like in addition to the gloss composition.
That is, one aspect of the cosmetic according to an embodiment of the present invention includes the gloss composition,
A cosmetic comprising a silicone compound (F), a cationic polymer (G), and optional cosmetic ingredients described later if desired.

<Silicone compound (F)>
The cosmetic composition synergistically increases the smoothness at the time of rinsing by having both the silicone compound (F) (hereinafter sometimes referred to as the component (F)) and the gloss composition. In addition, the shampoo and rinse containing both the component (F) and the gloss composition can synergistically enhance the texture of the object to be treated, such as the volume of the hair after washing.
The reason why the smoothness at the time of rinsing can be synergistically increased or the texture of the object to be processed can be synergistically increased by having both the component (F) and the gloss composition is not clear, but is estimated as follows. The
The glossy crystals contained in the glossy composition are elongated crystals having a minor axis / major axis ratio of less than 0.45. For this reason, when wash | cleaning processing objects, such as head hair and skin, using cosmetics, cosmetics are diluted with water and glossy crystals are intertwined and a mesh-like structure is formed. This network structure has a relatively high moisture content, and it is easy to incorporate the component (F) into the network structure. The network structure incorporating the component (F) adheres to the object to be treated. Cheap.
For this reason, it is considered that more (F) component adheres to the processing target, and when the processing target is rinsed, the slip between the processing target and the fingers is improved, and the smoothness at the time of rinsing can be improved. In addition, it is considered that the mesh-like structure incorporating the component (F) can support the hair three-dimensionally and enhance the volume feeling.

The component (F) may be any component that can be conventionally blended in cosmetics, such as dimethylpolysiloxane (including highly polymerized dimethylpolysiloxane and silicone rubber), methylphenylpolysiloxane, polyether-modified silicone, polyamino. Modified silicone, betaine modified silicone, alcohol modified silicone, fluorine modified silicone, epoxy modified silicone, mercapto modified silicone, carboxy modified silicone, fatty acid modified silicone, silicone graft polymer, cyclic silicone, alkyl modified silicone, trimethylsilyl group terminated dimethylpolysiloxane, Examples thereof include silanol group-terminated dimethylpolysiloxane. Among them, as the component (F), dimethylpolysiloxane, polyether-modified silicone, and polyamino-modified silicone are preferable, and highly polymerized dimethylpolysiloxane is more preferable from the viewpoint of further enhancing the synergistic effect with the gloss composition. These (F) components may be used individually by 1 type, and may be used in combination of 2 or more type.
Component (F) may be a component emulsified and emulsified with a surfactant.

The highly polymerized dimethylpolysiloxane is a dimethylpolysiloxane having a kinematic viscosity at 25 ° C. of 5 million mm ² / s or more.
The kinematic viscosity of the highly polymerized dimethylpolysiloxane is preferably 8 million mm ² / s or more. The upper limit of the kinematic viscosity is not particularly limited, but is preferably 30 million mm ² / s.
That is, the kinematic viscosity of the highly polymerized dimethylpolysiloxane is preferably 8 million mm ² / s or more and 30 million mm ² / s or less.

The kinematic viscosity is a value measured by the following measuring method.
A toluene solution (sample solution) of dimethylpolysiloxane having a concentration of 1 g / 100 mL is prepared, and the specific viscosity ηsp (25 ° C.) is obtained by the following formula (1).
The obtained specific viscosity ηsp is substituted into the Huggins relational expression shown in the following formula (2) to determine the intrinsic viscosity [η]. As the Huggins constant, a value described in “Nakamuta,“ Journal of the Chemical Society of Japan ”, No. 77, page 588, 1956” is used. The obtained [η] is represented by A. Substituting it into the Kololov equation, the molecular weight M of dimethylpolysiloxane is determined. The obtained M is represented by A. J. et al. Substituting into the Barry equation, the kinematic viscosity η of dimethylpolysiloxane is determined.
ηsp = (η / η0) −1 (1)
(In the formula (1), η0 represents the viscosity of toluene, and η represents the viscosity of the sample solution.)
ηsp = [η] + K ′ [η] ² (2)
(In the formula (2), K ′ is a Huggins constant.)
[Η] = 0.215 × 10 ⁻⁴ M ^0.65 (3)
(In the formula (3), M is the molecular weight of dimethylpolysiloxane.)
log η = 1.00 + 0.0123M ^0.5 (4)
(In the formula (4), M is the molecular weight of dimethylpolysiloxane.)
Said (eta) 0 and (eta) are the viscosity measured based on cosmetics raw material reference | standard, a general test method, a viscosity measuring method, and 1st method.

The highly polymerized dimethylpolysiloxane includes trimethylsilyl group-terminated dimethylpolysiloxane, silanol group-terminated dimethylpolysiloxane, and the like.
The highly polymerized dimethylpolysiloxane may be used singly or in combination of two or more.

The form of the highly polymerized dimethylpolysiloxane may be a molten liquid or an emulsion. The emulsifier and emulsification method in emulsification are not particularly limited.

Commercially available products of highly polymerized dimethylpolysiloxane include, for example, silicone emulsion (6) (manufactured by Yushi Kogyo Co., Ltd., kinematic viscosity = 10 million mm ² / s, solid conversion 60% by mass), silicone emulsion KM-903 ( Silicone oil dimethyl silicone manufactured by Shin-Etsu Chemical Co., Ltd., kinematic viscosity = 20 million mm ² / s, solid conversion 60% by mass) and the like.
The content of the component (F) in the cosmetic is determined in consideration of the type of cosmetic. For example, when the cosmetic is a shampoo, the content of the component (F) in the shampoo is preferably 0.5 to 5% by mass and more preferably 1 to 4% by mass with respect to the total mass of the shampoo. If it is less than the above lower limit value, the smoothness during rinsing and the texture of the object to be treated may be reduced, and if it exceeds the above upper limit value, the stickiness of the hair after drying may be increased.

In cosmetics, the mass ratio represented by component (A) / component (F) (hereinafter sometimes referred to as A / F ratio) is determined in consideration of the type of cosmetics and the like. For example, if the cosmetic is a shampoo, the A / F ratio is preferably 0.06 to 60, more preferably 0.2 to 40, and even more preferably 1 to 20. If it is less than the lower limit, the smoothness during rinsing with the component (F) may be reduced, and if it exceeds the upper limit, stickiness of the hair after drying may be increased.

<Cationic polymer (G)>
The cosmetic can synergistically increase the smoothness during rinsing by having both the cationic polymer (G) (hereinafter sometimes referred to as the component (G)) and the gloss composition. In addition, the shampoo and rinse containing both the component (G) and the gloss composition can synergistically enhance the texture of the treatment target such as the volume of hair after washing.
The reason why the smoothness at the time of rinsing can be increased synergistically or the texture of the object to be processed can be increased synergistically by having both the component (G) and the gloss composition is not clear, but is estimated as follows. The
When a treatment target such as hair or skin is washed using the cosmetic, the cosmetic is diluted with water, and the glossy crystals are entangled to form a network structure. This network structure has a relatively high water content, and it is easy to incorporate the component (G) into the network structure. The network structure incorporating the component (G) adheres to the object to be treated. Cheap.
For this reason, it is considered that more (G) components are attached to the processing target, and when the processing target is rinsed, the slip between the processing target and the fingers is improved, and the smoothness at the time of rinsing can be increased. In addition, it is considered that the mesh-like structure incorporating the component (G) can enhance the volume feeling by supporting the hair three-dimensionally.

The component (G) may be any component that can be blended in cosmetics, and examples thereof include cationized cellulose, cationized guar gum, dimethyldiallylammonium chloride / acrylamide copolymer, cationized dextran, and cationized pullulan. Can be mentioned. Of these, cationized guar gum and dimethyldiallylammonium chloride / acrylamide copolymer are preferred from the viewpoint of further enhancing the synergistic effect with the gloss composition.

The content of the component (G) in the cosmetic is determined in consideration of the type of cosmetic. For example, when the cosmetic is a shampoo, the content of the component (G) in the shampoo is preferably 0.01 to 5% by mass and more preferably 0.1 to 2% by mass with respect to the total mass of the shampoo. . If it is less than the above lower limit value, the smoothness at the time of rinsing and the texture of the object to be processed may be reduced, and if it exceeds the above upper limit value, it may be easily wet during the rinsing.

In cosmetics, the mass ratio represented by component (A) / component (G) (hereinafter sometimes referred to as A / G ratio) is determined in consideration of the type of cosmetics and the like. For example, if the cosmetic is a shampoo, the A / G ratio is preferably 0.2 to 2000, more preferably 5 to 200. If it is less than the lower limit, the smoothness during rinsing may be reduced, and if it exceeds the upper limit, stickiness of the hair after drying may be increased.

<Other optional ingredients in cosmetics>
The cosmetic may contain optional components other than the gloss composition and the components (F) to (G) (hereinafter sometimes referred to as cosmetic optional components) as necessary.
Cosmetic optional ingredients include surfactants; anionic polymers, nonionic polymers, etc., polymers other than (F) and (G) ingredients (arbitrary polymers); polyols; inorganic salts such as salt and salt cake; organic salts Humectants such as propylene glycol; tonic agents; solubilizers; antioxidants such as BHT and α-tocopherol; bactericides such as triclosan and trichlorocarban; viscosity modifiers such as fatty acid monoethanolamide and fatty acid diethanolamide; Absorbents; Antioxidants; Protein derivatives; Animal and plant extracts; Antidandruff agents such as piroctone olamine and zinc pyrithione; Anti-inflammatory agents such as dipotassium glycyrrhizinate; ; PH adjusters such as citric acid and triethanolamine; Emulsifiers; Vitamins; Volatile Min; dyes; perfumes; water and the like.

Examples of the surfactant as a cosmetic optional component include the same components as the component (B).
Optional polymers for cosmetic ingredients include pectin, carrageenan, guar gum, locust bean gum, gelatin, xanthan gum, carboxyvinyl polymer, carboxymethylhydroxyethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, alginate, starch, polyvinyl alcohol, polyacrylic Examples include acid salts, polymethacrylates, polymethyl acrylates, polyethylene glycols, polyethylene oxides, and tragarant rubbers.

The type of cosmetic optional ingredients to be blended is appropriately determined in consideration of functions required for cosmetics.
The content of the cosmetic optional ingredient in the cosmetic is appropriately determined in consideration of the type of cosmetic optional ingredient.

(Cosmetics production method)
The method for producing the cosmetic is not particularly limited, and examples thereof include a method of dispersing the gloss composition, the components (F) to (G) and optional cosmetic ingredients in a dispersion medium such as water. . The order of adding each component to the dispersion medium is not particularly limited.
Here, “dispersion” means that each component does not settle in the dispersion medium.

As described above, the gloss composition of the present invention comprises gloss crystals containing the component (A) and the components (B) to (D), and the minor crystal / major axis ratio of the gloss crystals is less than 0.45, Since the C / A ratio is in a specific range, the cosmetic is given a good gloss, and the smoothness of the cosmetic during rinsing and the texture of the treatment target can be further enhanced.

As other aspects of the gloss composition which is one embodiment of the present invention,
A crystal containing a fatty acid glycol ester (A) represented by the following general formula (I), a surfactant (B), an alcohol having 8 to 22 carbon atoms (C), and water (D);
The mass ratio represented by the component (C) / the component (A) is 0.2 to 1.5,
The ratio represented by the minor axis / major axis of the crystal is a gloss composition having a ratio of 0.10 or more and less than 0.45;
With respect to the total mass of the gloss composition,
The component (A) is 2% by mass or more and 10% by mass or less,
The component (B) is 5% by mass or more and 30% by mass or less,
The component (C) is 1% by mass or more and 10% by mass or less,
Examples include a gloss composition in which the component (D) is 25 to 90% by mass and the total amount of the components does not exceed 100% by mass.
Y—O— (R ² O) _m —CO—R ¹ (I)
(In the formula (I), R ¹ represents a hydrocarbon group having 13 to 21 carbon atoms; R ² represents an alkylene group having 2 to 4 carbon atoms; m represents an average number of repetitions of (R ² O)) Y represents a hydrogen atom or R ³ CO—; R ³ represents a hydrocarbon group having 13 to 21 carbon atoms.)

As other aspects of the gloss composition which is one embodiment of the present invention,
Crystals containing the fatty acid glycol ester (A) represented by the general formula (I), a surfactant (B), an alcohol (C) having 8 to 22 carbon atoms, water (D), and an aromatic A carboxylic acid or a salt thereof (E) and, optionally, an optional component;
The mass ratio represented by the component (C) / component (A) is 0.2 to 1.5;
The ratio represented by the minor axis / major axis of the crystal is a gloss composition having a ratio of 0.10 or more and less than 0.45;
With respect to the total mass of the gloss composition,
The component (A) is 2% by mass or more and 10% by mass or less,
The component (B) is 5% by mass or more and 30% by mass or less,
The component (C) is 1% by mass or more and 10% by mass or less,
The component (D) is 25 to 90% by mass,
Examples include a gloss composition in which the component (E) is 0.2 to 3% by mass and the total amount of the components does not exceed 100% by mass.

As other aspects of the gloss composition which is one embodiment of the present invention,
(A) crystals containing ethylene glycol distearate;
(B) an anionic surfactant;
(C) at least one alcohol selected from the group consisting of lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, and behenyl alcohol;
(D) water,
(E) benzoic acid, phthalic acid, terephthalic acid, isophthalic acid, salicylic acid or a salt thereof;
Optionally containing optional ingredients;
The mass ratio represented by the component (C) / component (A) is 0.2 to 1.5;
The ratio represented by the minor axis / major axis of the crystal is a gloss composition having a ratio of 0.10 or more and less than 0.45;
With respect to the total mass of the gloss composition,
The component (A) is 2% by mass or more and 10% by mass or less,
The component (B) is 5% by mass or more and 30% by mass or less,
The component (C) is 1% by mass or more and 10% by mass or less,
The component (D) is 25 to 90% by mass,
Examples include a gloss composition in which the component (E) is 0.2 to 3% by mass and the total amount of the components does not exceed 100% by mass.

As other aspects of the cosmetic that is one embodiment of the present invention,
A gloss composition, a silicone compound (F), a cationic polymer (G), a dispersion medium, and optionally a cosmetic optional component;
The gloss composition is the gloss composition of the present invention described above,
The component (F) is at least one selected from the group consisting of dimethylpolysiloxane, polyether-modified silicone, and polyamino-modified silicone,
Component (G) is at least one selected from the group consisting of cationized guar gum and dimethyldiallylammonium chloride-acrylamide copolymer;
With respect to the total mass of the gloss composition,
The component (A) is 2% by mass or more and 10% by mass or less,
The component (B) is 5% by mass or more and 30% by mass or less,
The component (C) is 1% by mass or more and 10% by mass or less;
For the total mass of the cosmetic,
The content of (F) is 0.5 to 5% by mass,
The content of (G) is 0.01 to 5% by mass;
The mass ratio represented by component (A) / component (F) is 0.06 to 60,
The mass ratio represented by component (A) / component (G) is 0.2 to 2000.
Examples include cosmetics.

As other aspects of the cosmetic that is one embodiment of the present invention,
A gloss composition, a silicone compound (F), a cationic polymer (G), a dispersion medium, and optionally a cosmetic optional component;
The gloss composition is the gloss composition of the present invention described above,
(F) component is highly polymerized dimethylpolysiloxane,
The component (G) is at least one selected from the group consisting of cationized guar gum and dimethyldiallylammonium chloride / acrylamide copolymer,
The cosmetic optional ingredient includes at least one selected from the group consisting of a surfactant, a fragrance, and citric acid;
With respect to the total mass of the gloss composition,
The component (A) is 2% by mass or more and 10% by mass or less,
The component (B) is 5% by mass or more and 30% by mass or less,
The component (C) is 1% by mass or more and 10% by mass or less;
For the total mass of the cosmetic,
The content of (F) is 0.5 to 5% by mass,
The content of (G) is 0.01 to 5% by mass;
The mass ratio represented by component (A) / component (F) is 0.06 to 60,
The mass ratio represented by component (A) / component (G) is 0.2 to 2000.
Examples include cosmetics.

Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited to the following description.

(Raw material)
<(A) component>
A-1: Ethylene glycol distearate (Genapol PMS (trade name), manufactured by Clariant Japan, melting point 70 ° C., freezing point 56 ° C.).

<(B) component>
B-1: Polyoxyethylene (average 3 mol) ammonium lauryl ether sulfate (Texapon ALES 70 (trade name), manufactured by Cognis Japan, pure content 70% by mass).
B-2: Ammonium lauryl sulfate (Texapon ALICS T (trade name), manufactured by Cognis Japan Co., Ltd.).
B-3: Polyoxyethylene (average 2 moles) sodium lauryl ether sulfate (Sinoline SPE-1250 (trade name), manufactured by Shin Nippon Rika Co., Ltd., pure content: 70% by mass).

<(C) component>
C-1: Lauryl alcohol (Conol 20P (trade name), manufactured by Shin Nippon Chemical Co., Ltd., melting point 23 ° C.).
C-2: Cetyl alcohol (LANETTE 16 (trade name), manufactured by Cognis Japan, melting point 50 ° C.).
C-3: Stearyl alcohol (LANETTE 18 (trade name), manufactured by Cognis Japan, melting point 60 ° C.).
C-4: Behenyl alcohol (LANETTE 22 (trade name), manufactured by Cognis Japan, melting point 75 ° C.).

<(D) component>
D-1: Purified water.

<(E) component>
E-1: Sodium benzoate (sodium benzoate (trade name), manufactured by BFGoodrich Kalama Inc.).

<(F) component>
F-1: Highly polymerized dimethyl silicone (silicone emulsion (6) (trade name), manufactured by Yushi Kogyo Co., Ltd., emulsion, pure content 60 mass%).

<(G) component>
G-1: Cationized guar gum (Labor gum CG-M6L (trade name), manufactured by Dainippon Pharmaceutical Co., Ltd.).
G-2: Dimethyldiallylammonium chloride / acrylamide copolymer (Kayacrill Resin M-50 (trade name), manufactured by Nippon Kayaku Co., Ltd.).

<Cosmetics optional ingredients>
≪Surfactant≫
Polyoxyethylene (2 mol on average) sodium lauryl ether sulfate (Sinoline SPE-1250 (trade name), manufactured by Shin Nippon Chemical Co., Ltd., pure content: 70% by mass). In the table, described as POE (2) sodium lauryl ether sulfate.
Polyoxyethylene (average 3 mol) lauric acid monoethanolamide (Amidette 2L-Y (trade name), manufactured by Kawaken Fine Chemical Co., Ltd.). In the table, described as POE (3) lauric acid monoethanolamide.
Lauric acid amidopropyl betaine (LPB-30 (trade name), manufactured by Yushi Kogyo Co., Ltd.).
Polyoxyethylene (average 20 mol) hydrogenated castor oil (CW-20-90 (trade name), manufactured by Aoki Oil & Fat Co., Ltd.). In the table, described as POE (20) hydrogenated castor oil.

≪Others≫
Perfume (perfume B described in Tables 5 to 10 of JP-A-2006-63044).
Citric acid (manufactured by Fuso Chemical Industries).

(Evaluation methods)
<Measurement of ratio of minor axis / major axis>
The gloss composition of each example was diluted 5 times with purified water and used as a sample. About the obtained sample, it observed (magnification 40 times) using the phase-contrast optical microscope (AX70, Olympus Corporation). A total of 10 glossy crystals, 2 each from 5 fields of view, were selected at random, and the ratio of the minor axis / major axis was determined. In the table, the average value of the minor axis, the average value of the major axis, and the average value of the minor axis / major axis ratio of 10 glossy crystals are described.

<Appearance (Glossy)>
The shampoos in each example were visually observed, and those having a pearly luster were evaluated as “A”, and those having no pearly luster were evaluated as “B”.

<Smoothness when rinsing>
Ten test subjects divided their hair left and right, and one of them was washed with 3 g of the following standard sample, and the other was washed with 3 g of the shampoo of each example. The feel when the hair was washed with the shampoo of each example was evaluated according to the following evaluation criteria, and 10 evaluation points were added up. It can be said that the higher the total score, the better the smoothness during rinsing.

<Composition of standard sample>
Polyoxyethylene (average 3 mol) ammonium lauryl ether sulfate: 15% by mass relative to the total mass of the standard sample.
Palm oil fatty acid amidopropyl betaine (Amizole CME (trade name), manufactured by Kawaken Fine Chemical Co., Ltd.): 3% by mass relative to the total mass of the standard sample.
Coconut oil fatty acid diethanolamide (CDE100 (manufactured by Kawaken Fine Chemical Co., Ltd.)): 1.5% by mass relative to the total mass of the standard sample.
Fragrance (fragrance B described in Tables 5 to 10 of JP-A-2006-63044): 0.4% by mass relative to the total mass of the standard sample.
Citric acid (manufactured by Fuso Chemical Industry Co., Ltd.): The amount necessary to adjust the standard sample to pH 6.
-Purified water: Balance (amount required to make the standard sample 100% by mass).

≪Evaluation criteria≫
+3 points: Very smooth compared to the standard sample.
+2 points: Smoother than the standard sample.
+1 point: Slightly smoother than the standard sample.
0 point: equivalent to a standard sample.
-1 point: The standard sample is slightly smoother.
-2 points: The standard sample is smoother.
-3 points: The standard sample is much smoother.

<Volume of hair>
10 subjects washed their hair in the same manner as “<smoothness during rinsing>”. The feel when the hair was washed with the shampoo of each example was evaluated according to the following evaluation criteria. The evaluation score of 10 people was added up. It can be said that the higher the total score, the better the volume of hair.

≪Evaluation criteria≫
+3 points: There is a very voluminous feel compared to the standard sample.
+2 points: There is a volume feeling compared to the standard sample.
+1 point: There is a little volume compared to the standard sample.
0 point: equivalent to a standard sample.
-1 point: The standard sample has a slightly voluminous feel.
-2 points: The standard sample has a volume feeling.
-3 points: The standard sample is much more voluminous.

(Examples 1-1 to 1-10, Comparative Examples 1-2 to 1-3)
According to Tables 1 and 2, 600 g of the gloss composition of each example was prepared by the following procedure. The gloss composition in each example was prepared under the condition of an environmental temperature of 25 ° C. The compounding amount of each component in the table is a pure conversion amount (the same applies hereinafter).
While putting (B) component, (C) component, (D) component and (E) component into a 1 L beaker which is a crystallization tank, and adjusting this to the mixing temperature in the table, three one motor (FBL1200, (Made by HEIDON) for 20 minutes (first mixing operation). (A) component was added to the primary mixture with (B) component, (C) component, (D) component, and (E) component, and it was set as the secondary mixture. Using a micropump (model number 184-405, manufactured by Chuo Rika Co., Ltd.), the secondary mixture was placed in a beaker and a line homomixer (ROBOMIX f-model, manufactured by Primix, stirring condition: 4500 rpm) at 25 g / min for 10 minutes. The mixture was circulated to obtain a mixture (second mixing operation, mixing step). At this point, heating of the mixture was stopped.
Using a micropump (model number 184-405, manufactured by Chuo Rika Co., Ltd.), the mixture in the beaker was circulated at a rate of 25 g / min between the beaker and a cooler (aluminum spiral heat exchanger). The cooling temperature of the cooler (refrigerant temperature) was set as “Cooling temperature” in the table.
The mixture was circulated through the beaker and the cooler until the mixture in the beaker reached the “crystallization end temperature” in the table, and gloss compositions P1 to P10 and P′2 to P′3 were obtained (crystallization). Process). In the table, the crystallization method of this example was described as “circulation”.
About the obtained glossy composition, the minor axis / major axis ratio of the glossy crystals was measured.

(Example 1-11)
After the crystallization step, a glossy composition P11 was obtained in the same manner as in Example 1-1 except that the glossy composition was left in a constant temperature bath at 48 ° C. (aging step). The aging time is as shown in the table.
About the obtained glossy composition, the minor axis / major axis ratio of the glossy crystals was measured.

(Comparative Example 1-1)
A glossy composition was obtained in the same manner as in Example 1-1 except that the crystallization process was as follows.
The mixture in the beaker was passed through the cooler once with a micro pump to obtain a glossy composition P′1 (crystallization step). At this time, the flow rate of the mixture was adjusted so that the temperature of the mixture at the outlet of the cooler was 35 ° C. The aging process is under the same conditions as in Example 1-1. About the obtained glossy composition, the minor axis / major axis ratio of the glossy crystals was measured. In the table, the crystallization method of this example was described as “one pass”.

As shown in Tables 1 and 2, in Examples 1-1 to 1-11 to which the present invention was applied, the minor crystal / major axis ratio of the glossy crystals was less than 0.45.
On the other hand, Comparative Example 1-1, in which the crystallization process was performed by a one-pass method, and Comparative Examples 1-2 to 1-3 not containing component (B) or (C), all had a minor axis / major axis ratio of glossy crystals. Was 0.45 or more.

FIG. 2 is a photomicrograph of the glossy composition P1 obtained in Example 1-1 (magnification 40 times), and FIG. 3 is a photomicrograph of the glossy composition P11 obtained in Example 1-11 (magnification 40 times). ). FIG. 4 is a photomicrograph (magnification 40 times) of the glossy composition P′1 obtained in Comparative Example 1-1.
As shown in FIGS. 2 to 3, the glossy crystals of the glossy composition P1 and the glossy composition P11 were needle-like with a minor axis / major axis ratio.
As shown in FIG. 4, the glossy crystal of the glossy composition P′1 had a large minor axis / major axis ratio.

(Examples 2-1 to 2-11, Comparative Examples 2-1 to 2-3)
According to Tables 3 to 4, each component except the glossy composition and citric acid was placed in a 200 mL beaker and stirred at 25 ° C. for 30 minutes. The gloss composition was added and stirred for 10 minutes, and then adjusted to pH 6 with citric acid to obtain 100 g of each shampoo. About the obtained shampoo, the appearance, the smoothness at the time of rinsing, and the volume of hair were evaluated, and the results are shown in the table.
The gloss compositions used in each example are the gloss compositions P1 to P11 and P′1 to P′3 obtained in Examples 1-1 to 1-11 and Comparative Examples 1-1 to 1-3.
In the table, “suitable amount” which is the blending amount of citric acid indicates the amount required to bring the shampoo to pH 6, and is 0.8 to 1.3% by mass relative to the total mass of the shampoo. In the table, “balance”, which is the blending amount of purified water, indicates the amount required to make the shampoo 100% by mass.

As shown in Tables 3 to 4, each of Examples 2-1 to 2-11 to which the present invention was applied had a pearly luster, an evaluation of smoothness at the time of rinsing of 12 points or more, and the volume of hair. The evaluation was 12 points or more.
Comparative Examples 2-1 to 2-3 using a glossy composition having a minor axis / major axis ratio of 0.45 or more of glossy crystals have a pearly luster, but have a smoothness of -10 points or less when rinsed. The volume of hair was -12 points or less.
From these results, it was found that by applying the present invention, a pearly luster was imparted to the cosmetic, and the smoothness at the time of rinsing in the cosmetic and the texture of the treatment object could be further enhanced.

According to the gloss composition of the present invention, a pearly luster is imparted to the cosmetic, and the smoothness of the cosmetic during rinsing and the texture of the treatment object can be further enhanced, which is extremely important in industry.

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus of gloss composition 10 Crystallizer 12 Crystallization tank 20 Cooling machine 30 Mixture

Claims (4)

1. A crystal containing a fatty acid glycol ester (A) represented by the following general formula (I);
   A surfactant (B),
   Alcohol (C) having 8 to 22 carbon atoms;
   Including water (D);
   The mass ratio represented by the component (C) / component (A) is 0.2 to 1.5;
   The ratio represented by the minor axis / major axis of the crystal is less than 0.45.
   Y—O— (R ² O) _m —CO—R ¹ (I)
   (In the formula (I), R ¹ represents a hydrocarbon group having 13 to 21 carbon atoms, R ² represents an alkylene group having 2 to 4 carbon atoms, and m represents an average number of repetitions of (R ² O). Y represents a hydrogen atom or R ³ CO—, and R ³ represents a hydrocarbon group having 13 to 21 carbon atoms.)
2. Furthermore, the glossy composition of Claim 1 containing aromatic carboxylic acid or its salt (E).
3. A cosmetic comprising the gloss composition according to claim 1 or 2.
4. The method for producing a glossy composition according to claim 1, wherein a production apparatus comprising a crystallization tank and a cooler is used.
   In the manufacturing apparatus, the crystallization tank and the cooler are connected,
   The manufacturing method includes:
   A mixing step of mixing the components (A) to (D) above the melting point of the component (A) to obtain a mixture;
   A crystallization step in which the mixture is circulated through the crystallization tank and the cooler, cooled to a temperature not higher than the freezing point of the component (A), and crystals containing the component (A) are precipitated;
   A method for producing a glossy composition comprising:

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