JPWO2018174202A1 - Powdered fat composition for dry water - Google Patents

Abstract

It is an object of the present invention to provide a dry oil powder composition that can easily produce dry water containing an aqueous component. The present invention is a powdery fat composition for dry water containing a powdery fat composition that satisfies the following condition (a). (A) It is a powdery oil and fat composition containing an oil and fat component containing one or more XXX type triglycerides having a fatty acid residue X having carbon number x at positions 1 to 3 of glycerin, wherein the carbon number x is It is an integer selected from 10 to 22, the fat and oil component contains β-type fat and oil, the particles of the powdered fat and oil composition have a plate shape, and the loose bulk density of the powdery fat and oil composition is 0.05 to 0.6 g / cm3.

Description

TECHNICAL FIELD The present invention relates to a dry oil powder oil composition that can easily produce dry water containing an aqueous component, a dry water produced using the powder oil composition, and a method for producing the dry water.
This application claims priority on March 23, 2017 based on Japanese Patent Application No. 2017-56751 for which it applied to Japan, and uses the content here.

  Dry water is a powder obtained by coating an aqueous component with a hydrophobic powder or a hydrophobized powder or the like, and has a property of liquefying when applied at the time of use. Main applications of dry water include powdery cosmetics, which are used as white powder and whitening powder. In the ink and printing industries, it is also used as a powdery aqueous paint. Recently, it is expected as a material for storing and transporting methane gas hydrate, and has attracted attention as a material for efficiently performing heterogeneous catalytic reactions.

  In conventional dry water production methods, hydrophobic powder or hydrophobized powder is used. For example, a powdery cosmetic (dry water) using a hydrophobized silicic acid anhydride having a surface area of 60 m 2 / g or more is known (Patent Document 1). Further, a gas hydrate (dry water) using hydrophobic fumed silica is known (Patent Document 2). However, since the hydrophobic powder or the hydrophobized powder that has been used in the production of dry water so far is a polymer compound or an inorganic compound, there is an environmental impact in its use. The amount is limited. Therefore, there has been a demand for a method for producing dry water using a substance that has a low environmental load and is safer for the human body.

JP 2002-326904 A JP 2011-529036 A

  It is an object of the present invention to provide a dry oil powder composition that can easily produce dry water containing an aqueous component.

  As a result of intensive research on the above problems, the present inventors have surprisingly found that dry water containing an aqueous component can be easily produced as long as it is a powdered oil composition satisfying specific conditions. Completed. That is, the present invention can include the following aspects.

[1] A powdery fat composition for dry water containing a powdery fat composition that satisfies the following condition (a). (A) It is a powdery oil and fat composition containing an oil and fat component containing one or more XXX type triglycerides having a fatty acid residue X having carbon number x at positions 1 to 3 of glycerin, wherein the carbon number x is It is an integer selected from 10 to 22, the fat and oil component contains β-type fat and oil, the particles of the powdered fat and oil composition have a plate shape, and the loose bulk density of the powdery fat and oil composition is 0.05 to 0.6 g / cm ³ .
[2] The powdery fat composition for dry water according to [1], wherein the fat component is a β-type fat.
[3] The powdered oil composition for dry water according to [1] or [2], wherein the XXX type triglyceride contains 50% by mass or more when the total mass of the oil / fat component is 100% by mass.
[4] The dry oil composition for dry water according to any one of [1] to [3], wherein the carbon number x is an integer selected from 16 to 18.
[5] The powdery fat composition for dry water according to any one of [1] to [4], wherein the loose bulk density of the powdery fat composition is 0.1 to 0.4 g / cm ^3. object.
[6] The powder oil composition for dry water according to any one of [1] to [5], wherein the aspect ratio (2) of the particles of the powder oil composition is 2.5 or more.
[7] The powdered oil and fat composition contains a β-type oil and fat obtained by cooling and solidifying the oil and fat composition raw material containing the XXX type triglyceride at a cooling temperature or higher obtained from the following formula: [1] Powder oil composition for dry water as described in any one of-[6].
Cooling temperature (° C.) = Carbon number ×× 6.6−68
[8] β-type oil and fat obtained by cooling and solidifying the oil-and-fat composition raw material containing the XXX type triglyceride at a temperature equal to or higher than the melting point of α-type oil and fat corresponding to the β-type oil and fat. The powder fat composition for dry water according to any one of [1] to [7], comprising:
[9] The powdery fat composition for dry water according to any one of [1] to [8], wherein the powdery fat composition has an average particle size of 20 μm or less.
[10] Dry water comprising an aqueous component and the powdered fat composition for dry water according to any one of [1] to [9].
[11] The dry water as set forth in [10], comprising 5 to 99 parts by mass of the powdery fat composition for dry water with respect to 100 parts by mass of the dry water.
[12] A method for producing dry water, comprising a step of blending the powdery fat composition for dry water according to any one of [1] to [9] with an aqueous component.
[13] The method for producing dry water according to [12], wherein 5 to 99 parts by mass of the powdered fat / oil composition for dry water is blended with 100 parts by mass of the dry water.

  According to the present invention, anyone can easily produce dry water by blending a powdered oil composition for dry water that satisfies specific conditions. Furthermore, since the above-mentioned powdered oil and fat composition for dry water is not a polymer compound or an inorganic compound, compared with the case of using these, the burden on the environment is small, the safety to the human body is high, and the amount used is limited. Can be used. Moreover, since the said powdery fat composition for dry water does not have a peculiar color, flavor, and smell, and its reactivity with other substances is low, it does not have an adverse effect on the finished dry water. Therefore, it can be suitably used for a wide range of applications (for example, powdery cosmetics, powdered aqueous paints, various gas storage / transport materials, heterogeneous catalytic reactions, etc.).

It is the photograph which showed the state (dripping method) of the dry water of Example 1 of this invention. It is the photograph which showed the state (mixing method) of the dry water of Example 2 of this invention. It is an external appearance photograph of the powdered oil-fat composition (beta type fats and oils) of Production Example 7 of the present invention. It is an external appearance photograph of the powdered oil-fat composition (beta type fats and oils) of Production Example 7 of the present invention. It is an external appearance photograph of the fats and oils composition (alpha-type fat and oil) of the manufacture comparative example 3 of this invention. It is a microscope picture of the powdered fats-and-oil composition (beta type fats and oils) of manufacture Example 7 of this invention. It is a microscope picture of the oil-fat composition (alpha type fat) of the manufacture comparative example 3 of this invention. It is a X-ray-diffraction figure of the powder oil-fat composition ((beta) type | mold fat and oil) of manufacture Example 7 of this invention. It is a X-ray-diffraction figure of the oil-fat composition (alpha type fat) of manufacture comparative example 3 of this invention. It is the figure which showed typically the microscope picture when the powdery fat composition was made to adhere to the core substance surface. In the figure, A is the core material, B is the powdered fat composition, and the length of the line segment ab (the length in the vertical direction from the adhesion surface of the particles adhered to the surface of the core substance) is It is the thickness value. In the micrograph (1500 times) when the powdered oil / fat composition A is adhered onto the glass bead surface, the portions measured as the thickness of the particles are shown by straight lines (two places). It is a microscope picture (100 time) of the powdery fat composition A. It is a microscope picture (300 times) of the powdery fat composition A. It is a microscope picture (100 time) of the powdery fats and oils B. It is a microscope picture (300 times) of powdered fats and oils B. It is a photograph of the external appearance of the powder oil-fat composition (manufacture example 21) before a grinding | pulverization. It is an electron micrograph (200 times) of the powdery fat composition (Manufacture Example 21) before pulverization. It is an electron micrograph (1) (1000 time) of a powdery oil-fat composition (manufacture example 21). It is an electron micrograph (2) (1000 times) of a powdery fat composition (Manufacturing Example 21). It is a photograph of the appearance of dry water of Examples 3-5. 7 is a photograph of the appearance of dry water in Example 6. 10 is a photograph of the appearance of dry water in Example 7. 10 is a photograph of the appearance of dry water in Example 8. 10 is a photograph of the appearance of dry water in Example 9. It is a photograph of the external appearance of the dry water of Example 10. It is a photograph of the external appearance of the dry water of Example 11. It is a photograph of the external appearance of the dry water of Examples 12-14. It is a photograph of the appearance of the dry water of Example 15. It is a photograph of the external appearance of the dry water of Example 16. It is a photograph of the appearance of the dry water of Example 17. It is a photograph of the external appearance of the dry water of Example 18. 20 is a photograph of the appearance of dry water of Example 19. It is a photograph of the external appearance of the dry water of Example 20. 22 is a photograph of the appearance of dry water in Example 21. It is a photograph of the appearance of the dry water of Example 22. It is a photograph of the external appearance of the dry water of Example 23. It is a photograph of the external appearance of the dry water of Example 24. It is a photograph of the external appearance of the dry water of Example 25. It is a photograph of the external appearance of the dry water of Example 26.

Hereinafter, the dry water of the present invention will be described in order.
<Dry water>
The dry water of the present invention is an aqueous component coated with a hydrophobic powder. The dry water is not particularly limited in appearance as long as the aqueous component is coated with a hydrophobic powder, and may be solid, paste, powder, or spherical. .
The dry water of this invention is coat | covered with the powder oil-fat composition for dry water mentioned later. Here, the dry water of the present invention will be described in more detail. Normally, when water droplets touch each other, the surface tension of each other is crushed and connected, resulting in larger water droplets. However, in the dry water according to the present invention, since the powder oil and fat composition covers the periphery of the water droplet, even when the water droplets touch each other, the water droplets do not stick to each other, and each maintains an independent shape. Therefore, the dry water of the present invention has fluidity and is crushed when pressure is applied, and an aqueous component comes out from the inside. For example, if a useful substance is contained in the aqueous component, it can be used as a carrier for the useful substance. In addition, if the aqueous component contains fine particles, the handleability of the fine particles is improved. Furthermore, since various gases can be adsorbed to the aqueous component and hydrates can be produced, it can be applied to absorption of carbon dioxide, storage of methane, and the like. Thus, the dry water of the present invention can be used for a wide range of applications.

<Aqueous component>
Ordinary water can be used as the aqueous component of the dry water of the present invention. The aqueous component may contain only water, and may contain other substances that dissolve in water in addition to water.
Further, the above-mentioned other substances that dissolve in water are not particularly limited as long as they are substances that are usually used as foods, cosmetics, and pharmaceuticals. For example, in the case of food, salting agents such as salt and potassium chloride, acidulants such as acetic acid, lactic acid and gluconic acid, liquid seasonings such as soy sauce, sugars and sugar alcohols, sweeteners such as stevia and aspartame, ethanol Etc. can be blended. In the case of cosmetics and pharmaceuticals, water-soluble drug components such as whitening agents, anti-inflammatory agents, antibacterial agents, hormone agents and the like can be included. , Alginic acid type, cellulose type), vitamins, enzymes, antioxidants, animal and plant extracts, and the like.
The aqueous component of the dry water of the present invention preferably contains 1 to 95% by mass, more preferably 20 to 90% by mass, and still more preferably 40 to 85% when the total mass of the dry water is 100% by mass. It is contained in an amount of 50% by mass, particularly preferably 50 to 85% by mass.

<Powder oil composition for dry water>
The present invention relates to a powdery oil / fat composition for dry water, which contains a powdery oily / fat composition satisfying the following condition (a) (hereinafter also simply referred to as “powdered oil / fat composition”).
(A) It is a powdery fat composition containing an oil and fat component containing one or more XXX type triglycerides having a fatty acid residue X having x carbon atoms at the 1st to 3rd positions of glycerin, wherein the carbon number x is 10 to 10 22 is an integer selected from 22, the fat component contains β-type fat, the powder fat composition particles have a plate shape, and the loose bulk density of the powder fat composition is 0.05-0. 6 g / cm ³ .
The powdery fat composition for dry water of the present invention may optionally contain an emulsifier, a fragrance, a colorant, skim milk powder, whole milk powder, cocoa powder, sugar, dextrin, etc. in addition to the powder oil composition described above. .
The content of the powdery fat composition satisfying the above condition (a) in the powdery fat composition for dry water is, for example, 50% by weight or more when the total weight of the powdery fat composition for dry water is 100% by weight. The lower limit is preferably 60% by mass or more, more preferably 70% by mass or more, and still more preferably 80% by mass or more. For example, 100% by mass or less, preferably 99% by mass or less, more preferably 95% by mass. It is the range which makes% or less the upper limit. 100 mass% of the powdered oil / fat composition for dry water may be a powdered oil / fat composition satisfying the above condition (a). The said powder fat composition can be used 1 type or 2 or more types, Preferably it is 1 type or 2 types, More preferably, 1 type is used.

<Oil component>
The powdered oil / fat composition of the present invention contains an oil / fat component. The fat component contains at least XXX type triglyceride, and optionally other triglycerides.
The fat component includes β-type fat. Here, the β-type fats and oils are fats and oils composed only of β-type crystals, which is one of crystal polymorphs of fats and oils. Other crystalline polymorphic fats and oils include β ′ type fats and oils and α type fats and oils, and β ′ type fats and oils are fats and oils composed only of β ′ type crystals that are one of the polymorphic forms of fats and oils. α-type fats and oils are fats and oils consisting only of α-type crystals, which is one of polymorphs of fats and oils. Some fats and oils crystals have the same composition but have different sublattice structures (crystal structures) and are called crystal polymorphs. Typically, there are a hexagonal type, an orthorhombic vertical type, and a triclinic parallel type, which are called α type, β ′ type, and β type, respectively. In addition, the melting points of each polymorph increase in the order of α, β ′, β, and the melting point of each polymorph varies depending on the type of fatty acid residue X having carbon number x. , Trilaurin, trimyristin, tripalmitin, tristearin, triarachidin, and tribehenine, the melting point (° C.) of each polymorph is shown. Table 1 was prepared based on Nissim Garti et al., “Crystallization and Polymorphism of Fats and Fatty Acids”, Marcel Dekker Inc., 1988, pp. 32-33. In preparing Table 1, the melting point temperature (° C.) was rounded to the first decimal place. Further, if the composition of the oil and fat and the melting point of each polymorph are known, it can be detected whether or not β-type oil or fat is present in the oil or fat.

A general method for identifying these polymorphs is an X-ray diffraction method, and diffraction conditions are given by the following Bragg equation.
2 d sin θ = nλ (n = 1, 2, 3,...)
A diffraction peak appears at a position satisfying this equation. Here, d is a lattice constant, θ is a diffraction (incident) angle, λ is an X-ray wavelength, and n is a natural number. From 2θ = 16 to 27 ° of the diffraction peak corresponding to the short face spacing, information on the side packing (sublattice) in the crystal can be obtained, and polymorphism can be identified. In particular, in the case of triacylglycerol, a characteristic peak of β-type is observed at 2θ = 19, 23, 24 ° (near 4.6 °, 3.9 °, near 3.8 °), and α at 21 ° (4.2 °). A characteristic peak of the mold appears. The X-ray diffraction measurement is performed using, for example, an X-ray diffractometer (Rigaku Corporation, sample horizontal X-ray diffractometer UItimaIV) maintained at 20 ° C. As the X-ray light source, CuKα ray (1.54 mm) is most often used.

  Furthermore, the crystalline polymorphism of the fats and oils can be predicted by a differential scanning calorimetry method (DSC method). For example, the prediction of β-type fats and oils is based on a DSC curve obtained by heating up to 100 ° C. at a rate of temperature increase of 10 ° C./min with a differential scanning calorimeter (product number, BSC 6220, manufactured by SII Nano Technology Co., Ltd.). This is done by predicting the crystal structure of the oil.

  Here, the fat and oil component only needs to contain β-type fat or oil, or contains β-type fat and oil as a main component (greater than 50% by mass). As a preferable aspect, the fat and oil component is substantially from β-type fat and oil. In a more preferred embodiment, the oil and fat component is composed of β-type oil and fat, and in a particularly preferred embodiment, the oil and fat component is composed only of β-type oil and fat. The case where all of the oil and fat components are β-type oils and fats is a case where α-type oils and / or β′-type oils and fats are not detected by differential scanning calorimetry. As another preferred embodiment, the oil and fat component (or powder oil and fat composition containing the oil and fat component) has a diffraction peak in the vicinity of 4.5 to 4.7 mm, preferably in the vicinity of 4.6 mm in the X-ray diffraction measurement. In Table 1, there is no X-ray diffraction peak of the short face spacing of the α-type fat and / or β′-type fat and oil, in particular, there is no diffraction peak in the vicinity of 4.2 mm. It can be judged that all are β-type oils and fats. As a further aspect of the present invention, it is preferable that all the fat components are β-type fats and oils, but other α-type fats and β′-type fats and oils may be contained. Here, the fat component in the present invention includes “β-type fat” and an index of the relative amount of β-type fat with respect to α-type fat and β-type fat is the β-type characteristic peak among the X-ray diffraction peaks. Intensity ratio between [alpha] -type characteristic peak and [[beta] -type characteristic peak intensity / [[alpha] -type characteristic peak intensity + [beta] -type characteristic peak intensity)] (hereinafter also referred to as peak intensity ratio). ). Specifically, based on the knowledge about the X-ray diffraction measurement described above, the peak intensity of 2θ = 19 ° (4.6 °) which is a characteristic peak of β type and 2θ = 21 which is a characteristic peak of α type. The ratio of the peak intensity at ° (4.2 mm): 19 ° / (19 ° + 21 °) [4.6 mm / (4.6 mm + 4.2 mm)] It can be understood that “including β-type fats and oils” as an index representing the abundance. In the present invention, it is preferable that all of the oil and fat components are β-type oils and fats (that is, peak intensity ratio = 1). For example, the lower limit value of the peak intensity ratio is, for example, 0.4 or more, preferably 0. 5 or more, more preferably 0.6 or more, still more preferably 0.7 or more, particularly preferably 0.75 or more, and even more preferably 0.8 or more is appropriate. If the peak intensity is 0.4 or more, the β-type oil can be regarded as having a main component of more than 50% by mass. The upper limit of the peak intensity ratio is preferably 1, but 0.99 or less, 0.98 or less, 0.95 or less, 0.93 or less, 0.90 or less, 0.85 or less, 0.80 or less Etc. The peak intensity ratio may be any one or any combination of the above lower limit value and upper limit value.

<XXX type triglyceride>
The oil and fat component of the present invention includes one or more XXX type triglycerides having a fatty acid residue X having x carbon atoms at the 1st to 3rd positions of glycerin. The XXX type triglyceride is a triglyceride having a fatty acid residue X having x carbon atoms at the 1st to 3rd positions of glycerin, and each fatty acid residue X is the same as each other. Here, the carbon number x is an integer selected from 10 to 22, preferably an integer selected from 12 to 22, more preferably an integer selected from 14 to 20, still more preferably selected from 16 to 18 Is an integer.
The fatty acid residue X may be a saturated or unsaturated fatty acid residue. Specific examples of the fatty acid residue X include residues such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, and behenic acid, but are not limited thereto. More preferred as fatty acids are lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid and behenic acid, more preferred are myristic acid, palmitic acid, stearic acid and arachidic acid, and even more preferred is palmitic acid. Acids and stearic acid.
The content of the XXX type triglyceride is, for example, 50% by mass or more, preferably 60% by mass or more, more preferably 70% by mass or more, and still more preferably 80% by mass when the total mass of the fat and oil component is 100% by mass. The lower limit is, for example, 100% by mass or less, preferably 99% by mass or less, and more preferably 95% by mass or less. XXX type triglycerides can be used singly or in combination of two or more, preferably one or two, more preferably one. When there are two or more types of XXX type triglycerides, the total value is the content of XXX type triglycerides.

<Other triglycerides>
The oil and fat component of the present invention may contain other triglycerides other than the XXX type triglyceride as long as the effects of the present invention are not impaired. The other triglycerides may be a plurality of types of triglycerides, and may be synthetic fats and oils or natural fats and oils. Examples of synthetic fats and oils include glyceryl tricaprylate. Examples of natural fats and oils include cocoa butter, sunflower oil, rapeseed oil, soybean oil, and cottonseed oil. When the total triglyceride in the oil and fat component of the present invention is 100% by mass, there is no problem even if other triglycerides are contained in an amount of 1% by mass or more, for example, about 5 to 50% by mass. The content of other triglycerides is, for example, 0 to 30% by mass, preferably 0 to 18% by mass, more preferably 0 to 15% by mass, and still more preferably 0 to 8% by mass.

<Other ingredients>
The powdered fat composition of the present invention may optionally contain other components such as emulsifiers, fragrances, coloring agents, skim milk powder, whole milk powder, cocoa powder, sugar, dextrin, etc., in addition to the above oil and fat components such as triglycerides. Good. The amount of these other components can be any amount as long as the effects of the present invention are not impaired. For example, when the total mass of the powdered oil and fat composition is 100% by mass, 0 to 70% by mass, preferably Is 0 to 65 mass%, more preferably 0 to 30 mass%. 90% by mass or more of the other components are preferably a powder having an average particle size of 1000 μm or less, and more preferably a powder having an average particle size of 500 μm or less. The average particle diameter here is a value (d50) measured by a laser diffraction scattering method (ISO133201 and ISO9276-1).
However, it is preferable that the preferred powdered fat composition of the present invention consists essentially of the above fat component, and the fat component preferably consists essentially of triglyceride. In addition, “substantially” means that the component other than the fat component contained in the fat composition or the component other than the triglyceride contained in the fat component is 100% by mass of the powdered fat composition or fat component, For example, it means 0 to 15% by mass, preferably 0 to 10% by mass, more preferably 0 to 5% by mass.

<Characteristics of powdered oil and fat composition>
The powdery fat composition of the present invention is a powdery solid at ordinary temperature (20 ° C.).
Loose bulk density of the powder fat and oil composition of the present invention, for example, be comprised of substantially only the oil component, 0.05~0.6g / cm ^3, preferably 0.1 to 0.5 g / cm ^3, more preferably from 0.1 to 0.4 g / cm ³ or 0.15~0.4g / cm ^3, more preferably from 0.2 to 0.3 g / cm ^3. Here, the “loosened bulk density” is a packing density in a state where the powder is naturally dropped. The loose bulk density (g / cm ³ ) is measured by, for example, dropping an appropriate amount of the powdered fat composition from about 2 cm above the upper opening end of the graduated cylinder into a graduated cylinder with an inner diameter of 15 mm × 25 mL, It can be determined by measuring the filled mass (g) and reading the volume (mL), and calculating the mass (g) of the powdered oil / fat composition per mL. The loose bulk density can also be calculated from the bulk specific gravity measured based on JIS K-6720 (or ISO 1060-1 and 2) using a bulk density measuring instrument of Kuramochi Scientific Instruments. Specifically, 120 mL of a sample is dropped into the receiver from a position 38 mm high from the upper opening of the receiver (100 mL cylindrical container having an inner diameter of 40 mm and a height of 85 mm). The sample swelled from the receiver is scraped off, the mass (Ag) of the sample corresponding to the internal volume (100 mL) of the receiver is weighed, and the loose bulk density can be obtained from the following equation.
Loose bulk density (g / mL) = A (g) / 100 (mL)
The measurement is preferably performed three times and the average value is taken.

The loose bulk density can also be measured by the following method.
The loose bulk density (g / cm ³ ) can be measured with a powder tester (model PT-X) manufactured by Hosokawa Micron Corporation.
Specifically, the sample is charged in a powder tester, the upper chute charged with the sample is vibrated, and the sample is dropped into the lower measuring cup by natural fall. The sample raised from the measuring cup is scraped off, the mass (Ag) of the sample corresponding to the internal volume (100 cm ³ ) of the receiver is weighed, and the loose bulk density is obtained from the following equation.
Loose bulk density (g / cm ³ ) = A (g) / 100 (cm ³ )
In addition, an appropriate amount of the powdered fat composition is dropped into a measuring cylinder having an inner diameter of 15 mm × 25 mL from about 2 cm above the upper opening end of the measuring cylinder, and is filled loosely, and measurement of the filled mass (g) and capacity (mL ) And calculating the mass (g) of the powdered oil / fat composition per mL.

In addition, the powdered fat composition of the present invention has a plate-like shape, for example, 0.5 to 200 μm, preferably 1 to 100 μm, more preferably 1 to 60 μm, and most preferably 1 to It has an average particle size (effective diameter) of 30 μm, even more preferably 20 μm or less, even more preferably 1 to 20 μm. Here, the average particle diameter (effective diameter) is a value (d50) measured by a laser diffraction scattering method (ISO133201, ISO9276-1) with a particle size distribution measuring device (for example, Microtrac MT3300ExII manufactured by Nikkiso Co., Ltd.).
The effective diameter means the particle diameter of the spherical shape when the actually measured diffraction pattern of the crystal to be measured matches the theoretical diffraction pattern obtained on the assumption that it is spherical. Thus, in the case of the laser diffraction scattering method, the effective diameter is calculated by fitting the theoretical diffraction pattern obtained on the assumption of a sphere and the actual diffraction pattern, so even if the measurement target is a plate shape Even a spherical shape can be measured by the same principle. Here, the plate-like shape preferably has an aspect ratio of 1.1 or more, more preferably an aspect ratio of 1.2 or more, still more preferably 1.2 to 3.0, particularly preferably, The aspect ratio is 1.3 to 2.5, and more preferably 1.4 to 2.0. The aspect ratio here is defined as the ratio of the length of the long side to the length of the short side of the particle figure surrounded by a rectangle circumscribing so as to minimize the area. Further, when the particles are spherical, the aspect ratio is smaller than 1.1. In the conventional method, in which oils with a high solid fat content such as extremely hardened oil are dissolved and sprayed directly, the particles of the powdered oil composition become spherical due to surface tension, and the aspect ratio is less than 1.1. Become. The aspect ratio is measured, for example, by measuring the length in the major axis direction and the length in the minor axis direction of the arbitrarily selected particles by direct observation with an optical microscope, a scanning electron microscope, or the like. It can obtain | require as an average value of the obtained number.

Another feature of the powdery fat composition of the present invention can also be expressed using the aspect ratio (2) of the particles.
The aspect ratio (2) in the present invention is a value obtained by dividing the major axis of the particle by the thickness [= major axis / thickness].
When the particles are perfectly spherical, the value of the aspect ratio (2) is 1 [= 1/1], and the value of the aspect ratio (2) increases as the flatness of the particles increases (thinner becomes thinner). Becomes bigger.
The aspect ratio (2) of the particles can be measured, for example, by the following methods (a) and (b).
(A) When the major axis and thickness can be measured for each particle from the electron micrograph of the particle For each individual particle shown in the electron micrograph, the major axis and thickness (vertical and horizontal) The aspect ratio (2) is determined for each particle, and the average value is defined as the aspect ratio (2) of the particle.
For example, this measuring method can be used when the particles are spherical.
(B) When the major axis or thickness of each particle cannot be measured from the electron micrograph of the particle. For example, when the particle has a flat shape or a plate-like shape, each particle appears in the electron micrograph. For the particles, the major axis can be measured, but the thickness is often not visible in the photograph and is difficult to measure directly from the photograph.
In such a case, the particle is attached to the surface of a core material such as glass beads, an electron micrograph is taken, and the vertical length from the surface of the particle attached to the core material surface is defined as the particle thickness. Measure and use this value as thickness.
This will be explained with reference to the schematic diagram of FIG. 10. A in FIG. 10 is a core substance, B is a particle for measuring the aspect ratio (2), and the length of the line segment ab (from the adhesion surface of the particle adhered to the core substance surface). Is the thickness value of the particles.
For the value of the major axis, the average particle diameter (d50) measured based on the above-mentioned laser diffraction scattering method is used.
The aspect ratio (2) [= major axis / thickness] can be determined from the values of the major axis and thickness of the particles thus measured.

  The aspect ratio (2) of the particles of the powdery fat composition of the present invention is preferably 2.5 or more, more preferably 2.5 to 100, still more preferably 3 to 50, and even more. It is 3-20, Most preferably, it is 3-15.

<The manufacturing method of a powder oil-fat composition>
The powdered oil and fat composition of the present invention melts an oil and fat composition raw material containing one or more XXX type triglycerides having a fatty acid residue X of carbon number x at the 1st to 3rd positions of glycerin, and at a specific cooling temperature. By maintaining and solidifying by cooling, a powdery oil / fat composition (powder / fat composition) can be obtained without taking special processing means such as mechanical pulverization by a pulverizer such as spray or mill. More specifically, (a) preparing an oil and fat composition raw material containing the XXX type triglyceride, optionally heating the oil and fat composition raw material obtained in step (a) as step (b), The oil and fat composition raw material in a molten state is obtained by dissolving the triglyceride contained in the raw material, and (d) the oil and fat composition raw material is cooled and solidified to contain β-type oil and fat, and the particle shape is plate-like Is obtained. The powder oil composition can also be produced by applying known pulverization processing means such as a hammer mill and a cutter mill to the solid obtained after cooling.

The cooling in the step (d) is, for example, the temperature of the molten fat composition raw material at a temperature lower than the melting point of the β-type fat of the fat component contained in the fat composition raw material, and the following formula:
Cooling temperature (° C.) = Carbon number ×× 6.6−68
It is performed at a temperature higher than the cooling temperature required from If it cools in such a temperature range, since a beta type oil and fat can be produced | generated efficiently and a fine crystal | crystallization is made, a powdered oil and fat composition can be obtained easily. The term “fine” refers to the case where the primary particles (smallest size crystals) are, for example, 20 μm or less, preferably 15 μm or less, more preferably 10 μm or less. Moreover, if it does not cool in such a temperature range, (beta) type fats and oils will not produce | generate, but the solid substance which has the space | gap which increased the volume rather than the fats and oils composition raw material may be impossible. Furthermore, in the present invention, by cooling in such a temperature range, β-type fats and oils are produced in a stationary state, and the particles of the powdered fats and oils composition are formed into a plate shape. This is useful for specifying the powdered fat composition of the present invention. As a preferable average particle diameter of the powdered oil and fat composition for dry water of the present invention, for example, an average particle diameter of 20 μm or less can be mentioned. The method for measuring the average particle diameter is as described above. Furthermore, since fine particles of 20 μm or less are difficult to be sensed by human senses, using a particle of 20 μm or less adds a powder oil composition having a high melting point without giving a rough texture or touch. be able to.

In more detail, the manufacturing method of a powder oil-fat composition is demonstrated.
The powdered fat composition of the present invention comprises the following steps:
(A) a step of preparing an oil and fat composition raw material containing XXX type triglyceride,
(B) The optional step of heating the fat composition raw material obtained in step (a) arbitrarily to obtain the molten fat composition raw material by dissolving the triglyceride contained in the fat composition raw material, (D) A step of cooling and solidifying the oil and fat composition raw material to obtain a powdered oil and fat composition containing β-type oil and fat, the particle shape of which is a plate shape
It can manufacture by the method containing.
Moreover, between the said process (b) and (d), the arbitrary processes for accelerating | stimulating powder production as a process (c), for example, (c1) Seeding process, (c2) Tempering process, and / or (c3) A pre-cooling step may be included. Further, the powdered fat composition obtained in the step (d) may be obtained by the step (e) of obtaining a powdery fat composition by grinding the solid obtained after cooling in the step (d). Good. Hereinafter, the steps (a) to (e) will be described.

(A) Raw material preparation step The oil and fat composition raw material containing the XXX type triglyceride prepared in the step (a) is one or more XXX type triglycerides having a fatty acid residue X having a carbon number x at positions 1 to 3 of glycerin. It is manufactured based on the manufacturing method of fats and oils, such as normal XXX type triglyceride containing, or can be easily obtained from the market. Here, the XXX-type triglyceride specified by the carbon number x and the fatty acid residue X is the same as that of the finally obtained fat component except for the crystal polymorph. The raw material may contain β-type fats and oils, for example, the β-type fats and oils may contain 0.1% by mass or less, 0.05% by mass or less, or 0.01% by mass or less. . However, since the β-type fats and oils disappear when the raw material is brought into a molten state by heating or the like, the raw material may be a raw material in a molten state. For example, when the raw material is in a molten state, the fact that β-type fats and oils are substantially not included is not limited to XXX type triglycerides, but also means that substantially all of the fat and oil components are not β-type fats and oils. Presence of the type fat / oil can be confirmed by confirming the diffraction peak due to the β type fat / oil by the above-mentioned X-ray diffraction measurement, the β type fat / oil by the differential scanning calorimetry, and the like. The amount of β-type oil / fat in the case of “substantially free of β-type oil / fat” is the intensity ratio between the characteristic peak of β-type and the characteristic peak of α-type among the X-ray diffraction peaks [characteristic of β-type It can be assumed from the following: intensity of target peak / (intensity of characteristic peak of α type + intensity of characteristic peak of β type)] (peak intensity ratio) The said peak intensity ratio of the said fat-and-oil composition raw material is 0.2 or less, for example, Preferably, it is 0.15 or less, More preferably, it is 0.10 or less. The oil and fat composition raw material may contain one or more XXX triglycerides as described above, preferably one or two, more preferably one.
Specifically, for example, the XXX type triglyceride can be produced by direct synthesis using a fatty acid or a fatty acid derivative and glycerin. As a method of directly synthesizing XXX type triglyceride, (i) a method of directly esterifying a fatty acid having X carbon atoms and glycerin (direct ester synthesis), (ii) a carboxyl group of fatty acid X having carbon number x is an alkoxyl group A method of reacting fatty acid alkyl (for example, fatty acid methyl and fatty acid ethyl) and glycerin under basic or acidic catalytic conditions (transesterification synthesis using fatty acid alkyl), (iii) a fatty acid having x carbon number The method (acid halide synthesis | combination) with which the fatty acid halide (for example, fatty acid chloride and fatty acid bromide) by which the hydroxyl group of the carboxyl group of X was substituted with halogen and glycerol is made to react in a basic catalyst is mentioned.
XXX type triglycerides can be produced by any of the methods (i) to (iii) described above, but from the viewpoint of ease of production, (i) direct ester synthesis or (ii) transesterification synthesis using fatty acid alkyls Preferably, (i) direct ester synthesis is more preferred.

In order to produce XXX type triglyceride by (i) direct ester synthesis, from the viewpoint of production efficiency, it is preferable to use 3 to 5 mol of fatty acid X or fatty acid Y with respect to 1 mol of glycerin, and 3 to 4 mol is used. It is more preferable.
The reaction temperature in (i) direct ester synthesis of XXX type triglyceride may be a temperature at which the water produced by the esterification reaction can be removed from the system, for example, 120 ° C to 300 ° C is preferable, and 150 ° C to 270 ° C is preferable. More preferably, 180 degreeC-250 degreeC is further more preferable. By performing the reaction at 180 to 250 ° C., XXX type triglyceride can be produced particularly efficiently.

In the (i) direct ester synthesis of XXX type triglyceride, a catalyst for promoting the esterification reaction may be used. Examples of the catalyst include an acid catalyst and an alkaline earth metal alkoxide. It is preferable that the usage-amount of a catalyst is about 0.001-1 mass% with respect to the total mass of a reaction raw material.
In (i) direct ester synthesis of XXX type triglycerides, after the reaction, the catalyst and raw material unreacted substances are removed by performing known purification treatments such as washing with water, alkaline deoxidation and / or vacuum deoxidation, and adsorption treatment. can do. Furthermore, the obtained reaction product can be further purified by performing decolorization / deodorization treatment.

  The amount of the XXX type triglyceride contained in the oil and fat composition raw material is, for example, 100 to 50% by mass, preferably 95 to 55% by mass, when the total mass of all triglycerides contained in the raw material is 100% by mass. More preferably, it is 90-60 mass%. Still more preferably, it is 85-65 mass%.

<Other triglycerides>
As the other triglyceride serving as the raw material for the oil and fat composition containing XXX type triglyceride, various triglycerides may be included in addition to the above XXX type triglyceride, as long as the effects of the present invention are not impaired. As other triglycerides, for example, an X2Y type triglyceride in which one fatty acid residue X of the XXX type triglyceride is substituted with a fatty acid residue Y, and two fatty acid residues X in the XXX type triglyceride are substituted with a fatty acid residue Y. XY2 type triglyceride etc. can be mentioned.
The amount of the other triglyceride is, for example, 0 to 100% by mass, preferably 0 to 70% by mass, more preferably 1 to 40% by mass when the total mass of the XXX type triglyceride is 100% by mass.

  Moreover, as an oil-fat composition raw material of this invention, you may use what hydrogenated, transesterified, or fractionated with respect to the naturally-derived triglyceride composition instead of directly synthesize | combining the said XXX type triglyceride. Examples of naturally occurring triglyceride compositions include rapeseed oil, soybean oil, sunflower oil, high oleic sunflower oil, safflower oil, palm stearin, and mixtures thereof. Particularly preferred are hardened oils, partially hardened oils and extremely hardened oils of these naturally derived triglyceride compositions. More preferred are hard palm stearin, high oleic sunflower oil extremely hardened oil, rapeseed extremely hardened oil, and soybean extremely hardened oil.

Furthermore, as the oil and fat composition raw material of the present invention, a commercially available triglyceride composition or synthetic oil and fat can be mentioned. For example, as a triglyceride composition, hard palm stearin (manufactured by Nisshin Oillio Group Co., Ltd.), rapeseed extremely hardened oil (manufactured by Yokoseki Yushi Kogyo Co., Ltd.), soybean super hardened oil (manufactured by Yokoseki Yushi Kogyo Co., Ltd.) can be mentioned. it can. Synthetic fats and oils include tripalmitin (manufactured by Tokyo Chemical Industry Co., Ltd.), tristearin (manufactured by Sigma Aldrich), tristearin (manufactured by Tokyo Chemical Industry Co., Ltd.), triarachidin (manufactured by Tokyo Chemical Industry Co., Ltd.) and tribehenine (manufactured by Tokyo Chemical Industry Co., Ltd.). Manufactured by Kogyo Co., Ltd.).
In addition, palm extremely hardened oil has a low content of XXX type triglyceride, and therefore can be used as a dilute component of triglyceride.

<Other ingredients>
In addition to the triglyceride, the oil and fat composition raw material may optionally contain other components such as a partial glyceride, a fatty acid, an antioxidant, an emulsifier, and a solvent such as water. The amount of these other components can be any amount as long as the effects of the present invention are not impaired. For example, when the total mass of XXX type triglyceride is 100% by mass, 0 to 5% by mass, preferably It is 0-2 mass%, More preferably, it is 0-1 mass%.

When the said fat-and-oil composition raw material contains two or more components, you may mix arbitrarily. Any known mixing method may be used for mixing as long as a homogeneous reaction substrate can be obtained. For example, a paddle mixer, an adihomo mixer, a disper mixer, or the like can be used.
You may mix the said heating under a heating as needed. The heating is preferably at the same level as the heating temperature in step (b) described below, for example, 50 to 120 ° C, preferably 60 to 100 ° C, more preferably 70 to 90 ° C, and further preferably 80 ° C. Is called.

(B) The process of obtaining the said fat-and-oil composition of a molten state Before the said (d) process, when the fat-and-oil composition raw material prepared by the said process (a) is in a molten state at the time of preparation, please heat. Although it is cooled as it is, when it is not in a molten state at the time of preparation, it is arbitrarily heated to melt the triglyceride contained in the oil composition raw material to obtain a molten oil composition raw material.
Here, the heating of the oil and fat composition raw material is performed at a temperature equal to or higher than the melting point of the triglyceride contained in the oil and fat composition raw material, particularly a temperature at which the XXX type triglyceride can be melted, for example, 70 to 200 ° C, preferably 75 to 150 ° C. More preferably, the temperature is 80 to 100 ° C. Moreover, it is appropriate that the heating is continued for, for example, 0.1 to 3 hours, preferably 0.3 to 2 hours, more preferably 0.5 to 1 hour.

(D) Step of cooling the molten fat composition to obtain a powdered fat composition The molten fat composition raw material prepared in the above step (a) or (b) is further cooled and solidified to form β-type A powdery fat composition containing fats and oils and having a plate-like particle shape is formed.
Here, in order to “cool and solidify a molten fat composition raw material”, the upper limit value of the cooling temperature is obtained by using the molten fat composition raw material as a β-type fat of the fat component contained in the fat composition raw material. It is necessary to keep the temperature lower than the melting point of. For example, in the case of XXX type triglyceride having 3 stearic acid residues having 18 carbon atoms, the melting point of β type fat is: Since it is 74 ° C. (Table 1), it is 1-30 ° C. lower than the melting point (ie 44-73 ° C.), preferably 1-20 ° C. lower than the melting point (ie 54-73 ° C.), more preferably 1-15 ° C. below the melting point (ie 59-73 ° C.), particularly preferably 1 ° C., 2 ° C., 3 ° C., 4 ° C., 5 ° C., 6 ° C., 7 ° C., 8 ° C., 9 ° C. or 10 ° C. Temperature.
More preferably, in order to obtain the β-type oil and fat, it is appropriate to keep the cooling temperature lower than the cooling temperature obtained from the following formula as the lower limit value of the cooling temperature.
Cooling temperature (° C.) = Carbon number ×× 6.6−68
(In the formula, carbon number x is carbon number x of XXX type triglyceride contained in the oil and fat composition raw material)
In order to obtain β-type fats and oils containing XXX type triglycerides, the cooling temperature is set to α-type fats other than β-type fats and β′-type fats and oils other than β-type fats. This is because it is necessary to set a temperature at which crystallization does not occur. Since the cooling temperature mainly depends on the molecular size of the XXX type triglyceride, it can be understood that there is a certain correlation between the carbon number x and the lower limit of the optimum cooling temperature.
For example, when the XXX type triglyceride contained in the oil and fat composition raw material is XXX type triglyceride having 3 stearic acid residues having 18 carbon atoms, the lower limit of the cooling temperature is 50.8 ° C. or more. Therefore, in the case of the XXX type triglyceride having 3 stearic acid residues having 18 carbon atoms, the temperature for “cooling and solidifying the molten oil composition raw material” is more preferably 50.8 ° C. or more and 72 ° C. or less. Become.
Moreover, when XXX type | mold triglyceride is a 2 or more types of mixture, the lower limit can be determined according to the cooling temperature with the smaller carbon number x. For example, XXX type triglyceride contained in the oil and fat composition raw material is a mixture of XXX type triglyceride having 3 palmitic acid residues having 16 carbon atoms and XXX type triglyceride having 3 stearic acid residues having 18 carbon atoms In this case, the lower limit of the cooling temperature is 37.6 ° C. or higher in accordance with the smaller carbon number of 16.

  As another aspect, the lower limit value of the cooling temperature is suitably a temperature equal to or higher than the melting point of the α-type oil or fat corresponding to the β-type oil or fat of the oil or fat composition raw material containing the XXX type triglyceride. For example, when the XXX type triglyceride contained in the oil and fat composition raw material is an XXX type triglyceride having 3 stearic acid residues having 18 carbon atoms, an α type oil and fat of XXX type triglyceride having 3 such stearic acid residues Since the melting point is 55 ° C. (Table 1), the temperature for “cooling and solidifying the molten oil and fat composition raw material” in this case is preferably 55 ° C. or more and 72 ° C. or less.

  As another aspect, the cooling of the raw material for the fat and oil composition in the molten state is, for example, when x is 10 to 12, the final temperature is preferably -2 to 46 ° C, more preferably 12 to 44 ° C, still more preferably. It is performed by cooling to a temperature of 14 to 42 ° C. For example, when x is 13 or 14, the final temperature in cooling is preferably 24 to 56 ° C, more preferably 32 to 54 ° C, still more preferably 40 to 52 ° C, and when x is 15 or 16, Preferably it is 36-66 degreeC, More preferably, it is 44-64 degreeC, More preferably, it is 52-62 degreeC, When x is 17 or 18, Preferably it is 50-72 degreeC, More preferably, it is 54-70 degreeC, Furthermore, Preferably, it is 58 to 68 ° C. When x is 19 or 20, it is preferably 62 to 80 ° C, more preferably 66 to 78 ° C, still more preferably 70 to 77 ° C, and when x is 21 or 22. Is preferably 66 to 84 ° C, more preferably 70 to 82 ° C, and still more preferably 74 to 80 ° C. At the final temperature, for example, preferably 2 hours or more, more preferably 4 hours or more, still more preferably 6 hours or more, preferably 2 days or less, more preferably 24 hours or less, still more preferably 12 hours or less, It is appropriate to stand still.

(C) Powder production promotion step Further, before the step (d), between the above steps (a) or (b) and (d), (c) As an optional step for promoting powder production, You may perform the process by the seeding method (c1), the tempering method (c2), and / or the (c3) precooling method with respect to the oil-fat composition raw material of the molten state used by d). Any of these optional steps (c1) to (c3) may be performed alone, or a plurality of steps may be combined. Here, between step (a) or (b) and step (d) is after step (a) or (b) in step (a) or (b) and in step (d). It means to include the previous step (d).
The seeding method (c1) and the tempering method (c2) are carried out before the cooling to the final temperature in order to make the oil and fat composition raw material in a molten state more reliable in the production of the oil and fat composition of the present invention. And a method for accelerating the production of powder for treating a raw material of an oil and fat composition in a molten state. Here, the seeding method (c1) is a method in which a small amount of a component that becomes a powder core (seed) is added at the time of cooling the oil and fat composition raw material in a molten state to promote powdering. Specifically, for example, the XXX type triglyceride having the same carbon number as that of the XXX type triglyceride in the fat and oil composition raw material is preferably 80% by mass or more to the fat and oil composition raw material in the molten state obtained in the step (b). More preferably, an oil and fat powder containing 90% by mass or more is prepared as a core (seed) component. At the time of cooling the fat / oil composition raw material in a molten state, the temperature of the fat / oil composition raw material reaches, for example, a final cooling temperature ± 0 to + 10 ° C., preferably +5 to + 10 ° C. At this point, 0.1 to 1 part by mass, preferably 0.2 to 0.8 parts by mass, is added to 100 parts by mass of the oil and fat composition raw material in the molten state, thereby pulverizing the oil and fat composition. It is a way to promote.
In addition, the tempering method (c2) is a temperature lower than the cooling temperature in the step (d), for example, 5 to 20 ° C., before cooling at the final cooling temperature in cooling the fat and oil composition raw material in a molten state. Promoting pulverization of the oil and fat composition by cooling to a low temperature, preferably 7 to 15 ° C, more preferably about 10 ° C, preferably for 10 to 120 minutes, more preferably about 30 to 90 minutes It is a method to do.
Furthermore, the preliminary cooling method (c3) includes the XXX type triglyceride before the molten oil composition raw material obtained in the step (a) or (b) is cooled in the step (d). A method of once cooling at a temperature between the temperature at which the oil / fat composition raw material is prepared and the cooling temperature at the time of cooling the oil / fat composition raw material, in other words, from the molten state temperature in the step (a) or (b) Is preliminarily cooled at a temperature higher than the cooling temperature of step (d). (C3) Subsequent to the pre-cooling method, cooling is performed at the cooling temperature at the time of cooling the fat composition raw material in the step (d). The temperature higher than the cooling temperature of the step (d) is, for example, a temperature 2 to 40 ° C. higher than the cooling temperature of the step (d), preferably a temperature higher by 3 to 30 ° C., more preferably a temperature higher by 4 to 30 ° C., More preferably, the temperature may be as high as about 5 to 10 ° C. The lower the temperature for the preliminary cooling, the shorter the main cooling time at the cooling temperature in the step (d). That is, unlike the seeding method or the tempering method, the pre-cooling method is a method that can promote the pulverization of the oil / fat composition by simply lowering the cooling temperature stepwise, and has a great advantage in industrial production.

(E) Step of obtaining a powdered fat composition by pulverizing a solid matter More specifically, the step of obtaining a powdered fat composition by cooling in the step (d) is more specifically a solid matter obtained by cooling in the step (d). It may be performed by the process (e) which grind | pulverizes and obtains a powdery oil-fat composition.
More specifically, first, the oil composition raw material is melted to obtain a molten oil composition, and then cooled to form a solid having voids whose volume is increased as compared with the molten oil composition raw material. . The fat and oil composition that has become a solid having voids can be pulverized by applying a light impact, and the solid is easily disintegrated into a powder form.
Here, a means for applying a light impact is not particularly specified, but a method of lightly applying vibration (impact) and pulverizing (raising) by shaking, sieving, etc. is simple and preferable.
The solid material may be pulverized by a known pulverization means. Examples of such pulverization means include a hammer mill and a cutter mill.

<Content of dry fat powder / fat composition in dry water>
The dry oil and fat composition for dry water of the present invention preferably contains 5 to 99 parts by mass, more preferably 10 to 80 parts by mass, and further preferably 15 to 60 parts by mass in 100 parts by mass of dry water. Contained, particularly preferably 15 to 50 parts by mass.

<Dry water production method>
The method for producing the dry water of the present invention is not particularly limited, and can be produced, for example, by including a step of blending a powder oil composition for dry water with an aqueous component. For example, it can be produced by dropping an aqueous component onto the powdered oil / fat composition and rolling the droplets as appropriate (dropping method). Or it can manufacture by putting the said powdery fat composition and an aqueous component into a stirrer, and mixing and stirring simultaneously (mixing method). The mixing / stirring means is not particularly limited, and a homomixer, a three-one motor, a V-type mixer, a kneader, or a pulverizer such as a cutter mill can be used. The size of the dry water produced by this method is not particularly limited. For example, the average particle size is preferably 10 mm or less, more preferably 5 mm or less, and 3 mm or less. Are particularly preferred, and those of 1 mm or less are particularly preferred (note that the dry water in FIG. 1 is about 3 mm).

<Other substances contained in dry water>
The dry water of the present invention can also contain a hydrophobic powder or a hydrophobized powder used in a conventional dry water production method as long as the effects of the present invention are not impaired.
For example, the hydrophobic powder used in the present invention includes polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, copolymer resin powder of styrene and acrylic acid, benzoguanamine resin powder, Examples thereof include organic powders such as fluorinated ethylene powder and cellulose powder, and silicon powders such as trimethylsilsesquioxane powder.
Examples of the hydrophobized powder used in the present invention include talc, kaolin, mica, sericite (sericite), muscovite, phlogopite, synthetic mica, safmica, biotite, lithia mica, permiculite, magnesium carbonate. , Calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (baked gypsum), calcium phosphate, fluorapatite , Hydroxyapatite, ceramic powder, metal soap (such as zinc myristate, calcium palmitate, aluminum stearate), inorganic powder such as boron nitride; inorganic white pigments such as titanium dioxide and zinc oxide; iron oxide (Bengara), titanic acid No iron Machine red pigments; inorganic brown pigments such as γ-iron oxide; inorganic yellow pigments such as yellow iron oxide and ocher; inorganic black pigments such as black iron oxide, carbon black and low-order titanium oxide; mango violet and baltic Inorganic purple pigments such as violet; inorganic green pigments such as chromium oxide, chromium hydroxide and cobalt titanate; inorganic blue pigments such as ultramarine and bitumen; titanium oxide coated mica, titanium oxide coated bismuth oxychloride, titanium oxide coated Examples include pearl pigments such as talc, colored titanium oxide coated mica, bismuth oxychloride, and fish scale foil; metal powder pigments such as aluminum powder and copper powder. In the present invention, those powder components obtained by hydrophobizing are used.
The other substance contained in the dry water is, for example, preferably 0 to 15% by mass, more preferably 0 to 10% by mass, and further preferably 0 to 5% when the dry oil / fat composition is 100% by mass. % By mass.

EXAMPLES Next, although an Example and a comparative example are given and this invention is demonstrated in more detail, this invention is not restrict | limited to these at all. Also. In the following, “%” indicates mass% unless otherwise specified, and “part” indicates mass part.
[Analysis method]
・ Triglyceride composition gas chromatography analysis conditions
DB1-ht (0.32mm × 0.1μm × 5m) Agilent Technologies (123-1131)
Injection volume: 1.0 μL
Inlet: 370 ° C
Detector: 370 ° C
Split ratio: 50/1 35.1kPa Constant pressure column CT: 200 ° C (0min hold) to (15 ° C / min) to 370 ° C (4min hold)
X-ray diffraction measurement Using an X-ray diffractometer UltimaIV (manufactured by Rigaku Corporation), CuKα (λ = 1.542 mm) as a radiation source, using a filter for Cu, output 1.6 kW, operating angle 0.96 to The measurement was performed under the conditions of 30.0 ° and a measurement speed of 2 ° / min. By this measurement, the presence of α-type oil and fat, β′-type oil and fat, and β-type oil and fat in the oil and fat component containing XXX type triglyceride was confirmed. When it had only a peak near 4.6 Å and no peak near 4.1-4.2 Å, it was judged that all of the oil and fat components were β-type oils and fats.
From the results of the X-ray diffraction measurement, the peak intensity ratio = [intensity of the β-type characteristic peak (2θ = 19 ° (4.6 （)) / (intensity of the α-type characteristic peak (2θ = 21 °]). (4.2 Å)) + β-type characteristic peak intensity (2θ = 19 ° (4.6 Å)))] was measured as an index representing the abundance of β-type fats and oils.

Loose bulk density The loose bulk density (g / cm ³ ) of the powdered fat composition obtained in the examples and the like is measured in a measuring cylinder having an inner diameter of 15 mm × 25 mL from about 2 cm above the upper opening end of the measuring cylinder. The composition was dropped and loosely filled, the filled mass (g) was measured and the capacity (mL) was read, and the mass (g) of the powdered oil / fat composition per mL was calculated.
・ Crystal (micrograph)
The crystals of the powdered oil / fat composition obtained with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation) were photographed. The obtained micrographs are shown in FIG. 4 (Production Example 7) and FIG. 5 (Production Comparative Example 3).
-Aspect ratio For particles selected directly using a scanning electron microscope S-3400N (manufactured by Hitachi High-Technologies Corporation) and using image analysis type particle size distribution measurement software (Mac-View, manufactured by Mountec Co., Ltd.) The length in the major axis direction and the length in the minor axis direction were measured and measured as an average value of the measured number.
・ Aspect ratio (2)
(A) Particle aspect ratio (2) of powdered oil and fat B (manufactured by Riken Vitamin Co., Ltd .: trade name “Spray Fat NR100”)
Most of the powdered fats and oils are spherical, and the diameter and thickness of each particle can be directly measured from an electron micrograph of the particle. Therefore, the 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation) ) Measure the major axis and thickness (vertical and horizontal) of each particle in the photograph taken in step), determine the aspect ratio (2) for each particle, and determine the aspect ratio of a total of 20 particles. The average value of (2) was defined as the aspect ratio (2) of the particles.
(B) Aspect ratio (2) of the particles of the powdery fat composition of the present invention
Since the powdery fat composition of the present invention has a plate shape, it is difficult to measure the thickness of the particles from a micrograph. Therefore, the thickness of the particles was measured from a photomicrograph when the powdery fat composition was adhered to the glass beads. Moreover, the average particle diameter (d50) measured based on the laser diffraction scattering method was used for the value of the major axis.
Specifically, the powdered fat composition is attached to the surface of the glass beads by adding and mixing the powdered fat composition to glass beads (manufactured by ASONE, model number BZ-01, dimensions 0.105 to 0.125 mmφ). The image was taken with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation). The length in the vertical direction from the adhesion surface of the particles of one powdered fat composition adhering to the glass bead surface was measured as the thickness of the particles, and the average value of the total 25 particle thicknesses was taken. The value was taken as the value of the particle thickness of the powdered fat composition.
FIG. 11 is one of the electron micrographs (1500 times) used for the measurement of the particle thickness of the powdered fat composition A described later. In this photograph, the parts (two places) indicated by straight lines in the photograph. (Length in the vertical direction from the adhesion surface of the particles adhering to the glass bead surface) was measured as the thickness of the particles of the powdery fat composition.
Moreover, the average particle diameter (d50) measured based on the above-mentioned laser diffraction scattering method was used for the value of the major axis.
The aspect ratio (2) [= major axis / thickness] was determined from the values of the major axis and thickness of the particles of the powdery fat composition thus measured.
・ Average particle size (d50)
It measured based on the laser diffraction scattering method (ISO133201, ISO9276-1) with the particle size distribution measuring apparatus (Microtrac MT3300ExII by Nikkiso Co., Ltd.). In addition, the measured average particle diameter is the value of d50.

<Raw material>
(1) Powdered fat composition A (powdered fat composition for dry water)
25 g of triglyceride (XXX type: 79.1% by mass, rapeseed extremely hardened oil, manufactured by Yokoseki Oil & Fat Co., Ltd.) having a stearic acid residue (carbon number 18) at the 1st to 3rd positions at 80 ° C. for 0.5 hour It was maintained and completely melted, cooled in a thermostatic bath at 60 ° C. for 12 hours to form a solid having voids with increased volume, and after crystallization was completed, it was cooled to a room temperature (25 ° C.) state. The obtained solid is mechanically pulverized to obtain a powdery oil composition A (loose bulk density: 0.2 g / cm ³ , particle aspect ratio 1.6, particle aspect ratio (2 ): 4.6, average particle size 8.0 μm, X-ray diffraction measurement diffraction peak: 4.6 ４, peak intensity ratio: 0.89).
When the obtained powdery fat composition A was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition A was a plate shape.
The micrographs of this powdered oil / fat composition A are shown in FIG. 12 (100 times) and FIG. 13 (300 times).
In the following tests, this powdery fat composition A was used.
(2) Powdered fats and oils B
As the powdered fats and oils B, commercially available powdered fats and oils (manufactured by Riken Vitamin Co., Ltd .: Spray Fat NR100) were used.
This powdered fat / oil B is a bead-shaped spherical powder, which is easily dispersed in water in which the fat / oil is trapped, has a loose bulk density of 0.5 g / cm ³ , a particle aspect ratio of 1.1, and a particle aspect ratio. The ratio (2) was 1.1, and the average particle size was 86 μm. Further, as a result of X-ray diffraction analysis of this powdery fat / oil B, the diffraction peak was 4.6, and the intensity ratio was 0.91. From the diffraction peak of the X-ray diffraction measurement and the peak intensity ratio, it can be seen that the powdered fat / oil contains β-type fat / oil.
When the powdered fats and oils B were observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fats and oils B was not a plate shape but a spherical shape.
The micrographs of this powdered fat / oil B are shown in FIG. 14 (100 times) and FIG. 15 (300 times).
In the following tests, this powder fat and oil set B was used.
(3) Aqueous component Ion-exchanged water (Ion-exchanged water produced with a cylinder type cartridge type pure water device manufactured by Organo Corporation)

[Test Example 1] Production of dry water (Drip method)
2 g of the powdered fat / oil composition A was placed on a petri dish having a diameter of 90 mm, and this was flattened to form a layer made of the powdered fat / oil composition A. Next, 20 μl of the aqueous component was dropped on the petri dish with a micropipette, and the resulting liquid droplets were rolled on the petri dish to obtain dry water (Example 1). In addition, it replaced with the powdery fat composition A for the comparison, and it experimented similarly using the powdered fats and oils B (comparative example 1). In addition, the state of the dry water of Example 1 was shown in FIG.

As is clear from FIG. 1, in Example 1, the powdered fat composition A gathered so as to cover the interface of the aqueous component (water droplets), and the water droplets were coated to form droplet-shaped dry water ( The average particle size was about 3 mm). On the other hand, when powdered fats and oils B were used, wettability (affinity of the liquid with respect to the solid surface) was low, and dry water could not be formed.
Further, in order to confirm the usability, the dry water of Example 1 was applied to the back of the hand. As a result, the dry water collapsed, and the aqueous component easily adapted to the skin without feeling rough.

[Test Example 2] Production of dry water (mixing method)
15 g of the powdered oil / fat composition A and 15 g of the aqueous component were placed in a mixing apparatus (Labo Milser LM-PLUS, Osaka Chemical Co., Ltd.) and mixed at 6000 rpm for 30 seconds to obtain dry water (Example 2). In addition, it replaced with the powdery fat composition A for the comparison, and it experimented similarly using the powdered fats and oils B (comparative example 2). In addition, the state of the dry water of Example 2 was shown in FIG.

As apparent from FIG. 2, in Example 2, the powdered fat composition A was coated with an aqueous component to form powdery dry water. On the other hand, when powdered oil B was used (Comparative Example 2), dry water could not be formed.
Further, in order to confirm the usability, when the dry water of Example 2 was applied to the back of the hand, the dry water collapsed, and the aqueous component easily adapted to the skin without feeling roughness.

Furthermore, the manufacture example of the powder oil-fat composition of this invention is shown below. The powdery composition obtained by these production examples can also be used as a powder oil composition for dry water, as in the above examples.
(Production Example 1): x = 16
25 g of a triglyceride (XXX type: 89.7% by mass, tripalmitin, manufactured by Tokyo Chemical Industry Co., Ltd.) having a palmitic acid residue (16 carbon atoms) at positions 1 to 3 is maintained at 80 ° C. for 0.5 hour. The mixture was completely melted and cooled in a constant temperature bath at 50 ° C. for 12 hours to form a solid having voids with increased volume, and after crystallization was completed, it was cooled to a room temperature (25 ° C.) state. A powdered oil composition which is a powdery crystal composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 2.0, average particle size: 119 μm, X-ray diffraction measurement) Diffraction peak: 4.6 Å, peak intensity ratio: 0.90).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 2): x = 16
Triglyceride having a palmitic acid residue (carbon number 16) at the 1st to 3rd positions (XXX type: 69.9% by mass, hard palm stearin, Nisshin Oilio Group Co., Ltd.) 25 g at 80 ° C. for 0.5 hour It was maintained and completely melted, and cooled in a thermostatic bath at 50 ° C. for 12 hours to form a solid having voids with an increased volume, and after crystallization was completed, it was cooled to a room temperature (25 ° C.) state. A powdered oil composition that is a powdery crystalline composition by loosening the obtained solid (relaxed bulk density: 0.3 g / cm ³ , aspect ratio: 1.4, average particle size 99 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.88).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 3): x = 16, (c2) Tempering method Triglyceride having a palmitic acid residue (carbon number 16) at the 1st to 3rd positions (XXX type: 89.7% by mass, tripalmitin, Tokyo Chemical Industry) 15g) was melted completely by maintaining at 80 ° C for 0.5 hours, cooled in a 30 ° C constant temperature bath for 0.01 hours, and then allowed to stand in a 60 ° C constant temperature bath for 2 hours. A solid with increased voids was formed and after crystallization was completed, it was cooled to room temperature (25 ° C.). A powdered oil composition which is a powdery crystal composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 2.0, average particle size 87 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.89).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 4): x = 16, (c1) Seeding method Triglyceride having a palmitic acid residue (carbon number 16) at the 1st to 3rd positions (XXX type: 89.7% by mass, tripalmitin, Tokyo Kasei) Kogyo Co., Ltd.) 15 g at 80 ° C. for 0.5 hours, completely melted and cooled in a 60 ° C. thermostatic bath until the product temperature reaches 60 ° C. 0.1% by mass, left in a thermostatic bath at 60 ° C. for 2 hours to form a solid having voids with increased volume, and after completing crystallization, to room temperature (25 ° C.) state Cooled down. A powdered oil composition that is a powdery crystalline composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 2.0, average particle size 92 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.89).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 5): x = 18
Maintain 3 g of triglyceride having a stearic acid residue (carbon number 18) at the 1st to 3rd positions (XXX type: 99.6% by mass, manufactured by Tristearin, Sigma-Aldrich) at 80 ° C. for 0.5 hours to completely After melting and cooling in a 60 ° C. constant temperature bath for 12 hours to form a solid having voids with an increased volume and completing crystallization, it was cooled to room temperature (25 ° C.). A powdered oil composition which is a powdery crystalline composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 2.0, average particle size 30 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.93).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 6): x = 18
25 g of a triglyceride (XXX type: 96.0% by mass, Tristearin, manufactured by Tokyo Chemical Industry Co., Ltd.) having a stearic acid residue (18 carbon atoms) at the 1st to 3rd positions is maintained at 80 ° C. for 0.5 hour. The mixture was completely melted and cooled in a constant temperature bath at 55 ° C. for 12 hours to form a solid having voids with an increased volume, and after crystallization was completed, it was cooled to a room temperature (25 ° C.) state. A powdered oil composition that is a powdery crystal composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 2.0, average particle size 31 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.88).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 7): x = 18
25 g of triglyceride (XXX type: 79.1% by mass, rapeseed extremely hardened oil, manufactured by Yokoseki Oil & Fat Co., Ltd.) having a stearic acid residue (carbon number 18) at the 1st to 3rd positions at 80 ° C. for 0.5 hour It was maintained and completely melted, and cooled in a constant temperature bath at 55 ° C. for 12 hours to form a solid having voids with an increased volume, and after crystallization was completed, it was cooled to a room temperature (25 ° C.) state. A powdered oil composition that is a powdery crystal composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 1.6, average particle size 54 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.89).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 8): x = 18
25 g of triglyceride having a stearic acid residue (carbon number 18) at the 1st to 3rd positions (XXX type: 66.7% by mass, soybean hardened oil, manufactured by Yokoseki Oil & Fat Co., Ltd.) at 80 ° C. for 0.5 hour This was maintained and completely melted, and cooled in a constant temperature bath at 55 ° C. for 12 hours to form a solid having voids with an increased volume to complete crystallization, and then cooled to a room temperature (25 ° C.) state. A powdered oil composition that is a powdery crystalline composition by loosening the obtained solid (relaxed bulk density: 0.3 g / cm ³ , aspect ratio: 1.4, average particle size 60 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.91).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 9): x = 18
Triglycerides having a stearic acid residue (18 carbon atoms) at the 1st to 3rd positions (XXX type: 84.1% by mass, Nisshin sunflower oil (S) (high oleic sunflower oil), manufactured by Nisshin Oillio Group, Inc. ) Was subjected to a complete hydrogenation treatment by a conventional method to obtain a hydrogenated product (XXX type: 83.9% by mass). 25 g of the resulting high oleic sunflower oil extremely hardened oil was completely melted by maintaining at 80 ° C. for 0.5 hours, cooled in a constant temperature bath at 55 ° C. for 12 hours, and a solid having voids with increased volume. After forming and completing crystallization, it was cooled to room temperature (25 ° C.). A powdered oil composition that is a powdery crystal composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 1.6, average particle size 48 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.89).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 10): x = 18
Triglycerides having a stearic acid residue (18 carbon atoms) at positions 1 to 3 (XXX type: 66.7% by mass, soybean hardened oil, manufactured by Yokoseki Yushi Kogyo Co., Ltd.), 18.75 g, and another position 1 to Triglyceride having a stearic acid residue (carbon number 18) at the 3rd position (XXX type: 11.1% by mass, palm extremely hardened oil, manufactured by Yokoseki Oil & Fat Co., Ltd.) 6.25 g was mixed to obtain a raw material fat (XXX Type: 53.6% by mass). After the raw fat / oil is completely melted by maintaining at 80 ° C. for 0.5 hours, cooled in a constant temperature bath at 55 ° C. for 12 hours to form solids having voids with increased volume, and crystallization is completed And cooled to room temperature (25 ° C.). A powdered oil composition which is a powdery crystal composition by loosening the obtained solid (relaxed bulk density: 0.3 g / cm ³ , aspect ratio: 1.4, average particle size 63 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.78). Palm extremely hardened oil had a very low content of XXX type triglyceride and was used as a diluent component (hereinafter the same).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 11): x = 18, (c1) Seeding method Triglyceride having a stearic acid residue (carbon number 18) at the 1st to 3rd positions (XXX type: 96.0% by mass, Tristearin, Tokyo Kasei) Kogyo Co., Ltd.) 25 g at 80 ° C. for 0.5 hours, completely melted and cooled in a 70 ° C. constant temperature bath until the product temperature reaches 70 ° C. 0.1% by mass, left in a constant temperature bath at 70 ° C. for 12 hours to form a solid having voids with increased volume, and after completing crystallization, to room temperature (25 ° C.) state Cooled down. A powdered oil composition which is a powdery crystal composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 2.0, average particle size 36 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.88).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 12): x = 18, (c2) Tempering method Triglyceride having a stearic acid residue (carbon number 18) at the 1st to 3rd positions (XXX type: 79.1% by mass, rapeseed extremely hardened oil, Yokoseki) 15 g of oil and fat industry) was completely melted by maintaining at 80 ° C. for 0.5 hour, cooled in a thermostatic bath at 50 ° C. for 0.1 hour, and then allowed to stand in a thermostatic bath at 65 ° C. for 6 hours. A solid having voids with an increased volume was formed, and after crystallization was completed, the mixture was cooled to room temperature (25 ° C.). A powdered oil composition which is a powdery crystal composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 1.6, average particle size 50 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.90).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 13): x = 18, (c2) Tempering method Triglyceride having a stearic acid residue (carbon number 18) at the 1st to 3rd positions (XXX type: 79.1% by mass, rapeseed extremely hardened oil, Yokoseki) 15 g of oil and fat industry) was completely melted by maintaining at 80 ° C. for 0.5 hours, cooled in a 40 ° C. constant temperature bath for 0.01 hours, and then allowed to stand in a 65 ° C. constant temperature bath for 2 hours. A solid having voids with an increased volume was formed, and after crystallization was completed, the mixture was cooled to room temperature (25 ° C.). A powdered oil composition that is a powdery crystalline composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 1.6, average particle size 52 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.89).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 14): x = 18, (c3) Precooling method Triglyceride (XXX type: 79.1% by mass, rapeseed extremely hardened oil) having a stearic acid residue (18 carbon atoms) at 1st to 3rd positions, 25 g of Yokoseki Yushi Kogyo Co., Ltd.) is maintained at 80 ° C. for 0.5 hours to completely melt, and the raw oil and fat is held in a 70 ° C. constant temperature bath until it reaches 70 ° C., and then in a 65 ° C. constant temperature bath for 8 hours. After cooling, a solid having voids with an increased volume was formed, and after crystallization was completed, it was cooled to a room temperature (25 ° C.) state. A powdered oil composition that is a powdery crystalline composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 1.6, average particle size 60 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.89).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 15): x = 20
10 g of a triglyceride (XXX type: 99.5% by mass, triarachidin, manufactured by Tokyo Chemical Industry Co., Ltd.) having an arachidic acid residue (20 carbon atoms) at positions 1 to 3 is maintained at 90 ° C. for 0.5 hour. It melt | dissolved completely, it cooled in a 72 degreeC thermostat for 12 hours, the solid substance which has the space | gap which increased in volume was formed, and after crystallization was completed, it cooled to the room temperature (25 degreeC) state. A powdered oil composition which is a powdery crystal composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 2.0, average particle size 42 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.92).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 16): x = 22
10 g of a triglyceride (XXX type: 97.4% by mass, tribehenine, manufactured by Tokyo Chemical Industry Co., Ltd.) having a behenic acid residue (carbon number 22) at the 1st to 3rd positions is maintained at 90 ° C. for 0.5 hour. It melt | dissolved completely, it cooled in the 79 degreeC thermostat for 12 hours, the solid substance which has the space | gap which increased in volume was formed, and after completing crystallization, it cooled to the room temperature (25 degreeC) state. A powdered oil composition that is a powdery crystalline composition by loosening the obtained solid (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 2.0, average particle size 52 μm, X-ray diffraction measurement diffraction) Peak: 4.6 Å, peak intensity ratio: 0.93).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 17): x = 16, 18
12.5 g of triglyceride (XXX type: 89.7% by mass, tripalmitin, manufactured by Tokyo Chemical Industry Co., Ltd.) having a palmitic acid residue (16 carbon atoms) at positions 1 to 3 and stearin at positions 1 to 3 Triglyceride having an acid residue (18 carbon atoms) (XXX type: 96.0% by mass, Tristearin, Tokyo Chemical Industry Co., Ltd.) 12.5 g was mixed to obtain a raw oil (XXX type: 93.8%) . The raw oil / fat is completely melted by maintaining at 80 ° C. for 0.5 hour, cooled in a constant temperature bath at 55 ° C. for 16 hours to form a solid having voids with increased volume, and then loosened to form powder Powdered fat composition (relaxed bulk density: 0.2 g / cm ³ , aspect ratio: 1.6, average particle size 74 μm, X-ray diffraction measurement diffraction peak: 4.6 Å, peak intensity ratio: 0) .90).
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Example 18): x = 16, 18
Triglycerides having a palmitic acid residue (16 carbon atoms) at positions 1 to 3 (XXX type: 69.9% by mass, hard palm stearin, manufactured by Nisshin Oilio Group Co., Ltd.) 12.5 g and positions 1 to 3 12.5 g of a triglyceride having a stearic acid residue (18 carbon atoms) (XXX type: 79.1% by mass, rapeseed extremely hardened oil, manufactured by Yokoseki Yushi Kogyo Co., Ltd.) was used as a raw oil (XXX type: 75.3%). The raw oil / fat is completely melted by maintaining at 80 ° C. for 0.5 hour, cooled in a constant temperature bath at 55 ° C. for 16 hours to form a solid having voids with increased volume, and then loosened to form powder Powdered fat composition (relaxed bulk density: 0.3 g / cm ³ , aspect ratio: 1.4, average particle size 77 μm, X-ray diffraction measurement diffraction peak: 4.6 Å, peak intensity ratio: 0) .88) was obtained.
When the obtained powdered fat composition was observed with a 3D real surface view microscope VE-8800 (manufactured by Keyence Corporation), the shape of the particles of the powdered fat composition was a plate shape.

(Production Comparative Example 1): x = 16
25 g of a triglyceride (XXX type: 89.7% by mass, tripalmitin, manufactured by Tokyo Chemical Industry Co., Ltd.) having a palmitic acid residue (16 carbon atoms) at positions 1 to 3 is maintained at 80 ° C. for 0.5 hour. When it is completely melted and cooled in a thermostatic bath at 25 ° C. for 4 hours, it completely solidifies (X-ray diffraction measurement diffraction peak: 4.1 ピ ー ク, peak intensity ratio: 0.10). It did not arrive at a certain powdery fat composition.

(Production Comparative Example 2): x = 16, 18
Triglycerides having a palmitic acid residue (16 carbon atoms) at positions 1 to 3 (XXX type: 69.9% by mass, hard palm stearin, manufactured by Nisshin Oilio Group Co., Ltd.) 12.5 g and positions 1 to 3 And 12.5 g of triglyceride having a stearic acid residue (18 carbon atoms) (XXX type: 11.1% by mass, palm extremely hardened oil, manufactured by Yokoseki Yushi Kogyo Co., Ltd.) were used as raw material fats and oils (XXX type: 39.6% by mass). The raw oil and fat was completely melted by maintaining at 80 ° C. for 0.5 hours, and then cooled in a constant temperature bath at 40 ° C. for 12 hours to be completely solidified (X-ray diffraction measurement diffraction peak: 4.2 kg, peak intensity ratio) : 0.12), it did not reach the powdered fat composition which is a powdery crystal composition.

(Production Comparative Example 3): x = 18
25 g of triglyceride (XXX type: 79.1% by mass, rapeseed extremely hardened oil, manufactured by Yokoseki Oil & Fat Co., Ltd.) having a stearic acid residue (carbon number 18) at the 1st to 3rd positions at 80 ° C. for 0.5 hour When maintained and completely melted and cooled in a constant temperature bath at 40 ° C. for 3 hours, it completely solidifies (X-ray diffraction measurement diffraction peak: 4.1 Å, peak intensity ratio: 0.11), and powdery crystal composition It did not arrive at the powdery fat composition which is a thing.

(Production Comparative Example 4): x = 18
12.5 g of triglyceride having a stearic acid residue (carbon number 18) at the 1st to 3rd positions (XXX type: 66.7% by mass, soybean hardened oil, manufactured by Yokoseki Yushi Kogyo Co., Ltd.) Triglyceride having a stearic acid residue (carbon number 18) at the 3-position (XXX type: 11.1% by mass, palm extremely hardened oil, manufactured by Yokoseki Oil & Fat Co., Ltd.) 12.5 g was mixed to obtain a raw material fat (XXX Type: 39.7% by mass). The raw oil and fat was completely melted by maintaining at 80 ° C. for 0.5 hours and cooled in a constant temperature bath at 55 ° C. for 12 hours to be completely solidified (X-ray diffraction measurement diffraction peak: 4.2 kg, peak intensity ratio) : 0.12), it did not reach the powdered fat composition which is a powdery crystal composition.

Tables 2 and 3 summarize the results of the above production examples and production comparative examples.

Moreover, the powdery oil-fat composition obtained by the following manufacture example can also be used as a powdered oil-fat composition for dry water like the said Example.
(Production Example 19): x = 18
About 1000 g of triglyceride (XXX type: 79.1% by mass, rapeseed extremely hardened oil, flakes, manufactured by Yokoseki Yushi Kogyo Co., Ltd.) having a stearic acid residue (18 carbon atoms) at positions 1 to 3 Maintain for 12 hours to melt completely, cool in a 60 ° C constant temperature bath for 12 hours to form solids with voids with increased volume, complete crystallization, then cool to room temperature (25 ° C) state did. The obtained solid was mechanically pulverized to obtain a powdery fat composition (relaxed bulk density: 0.2 g / cm ³ , particle aspect ratio: 1.4, particle aspect ratio (2): 3.7, average average). Particle size: 6.4 μm, X-ray diffraction measurement diffraction peak: 4.6 Å, peak intensity ratio: 0.89). From the diffraction peak of X-ray diffraction measurement and the peak intensity ratio, it was found that the oil / fat component of the obtained powdered oil / fat composition contains β-type oil / fat.
Moreover, when the obtained powdered fats and oils composition was observed with 3D real surface view microscope VE-8800 (made by Keyence Corporation), the shape of the particles of the powdered fats and oils composition was a plate shape.
The loose bulk density, aspect ratio, aspect ratio (2), average particle diameter, and X-ray diffraction were measured by the methods described above.

(Production Example 20): x = 18
About 1000 g of triglyceride (XXX type: 79.1% by mass, rapeseed extremely hardened oil, flakes, manufactured by Yokoseki Yushi Kogyo Co., Ltd.) having a stearic acid residue (18 carbon atoms) at positions 1 to 3 Maintain for 12 hours to melt completely, cool in a 60 ° C constant temperature bath for 12 hours to form solids with voids with increased volume, complete crystallization, then cool to room temperature (25 ° C) state did. The obtained solid was mechanically pulverized to obtain a powdered fat composition (relaxed bulk density: 0.2 g / cm ³ , particle aspect ratio: 1.5, particle aspect ratio (2): 3.5, average particle size) Diameter: 7.4 μm, X-ray diffraction measurement diffraction peak: 4.6 Å, peak intensity ratio: 0.89). From the diffraction peak of X-ray diffraction measurement and the peak intensity ratio, it was found that the oil / fat component of the obtained powdered oil / fat composition contains β-type oil / fat.
Moreover, when the obtained powdered fats and oils composition was observed with 3D real surface view microscope VE-8800 (made by Keyence Corporation), the shape of the particles of the powdered fats and oils composition was a plate shape.
The loose bulk density, aspect ratio, aspect ratio (2), average particle diameter, and X-ray diffraction were measured by the methods described above.

(Production Example 21): x = 18
About 1000 g of triglyceride (XXX type: 79.1% by mass, rapeseed extremely hardened oil, flakes, manufactured by Yokoseki Yushi Kogyo Co., Ltd.) having a stearic acid residue (18 carbon atoms) at positions 1 to 3 Maintain for 12 hours to melt completely, cool in a 60 ° C constant temperature bath for 12 hours to form solids with voids with increased volume, complete crystallization, then cool to room temperature (25 ° C) state did. The obtained solid was mechanically pulverized to obtain a powdered fat composition (relaxed bulk density: 0.2 g / cm ³ , particle aspect ratio: 1.4, particle aspect ratio (2): 7.2, average particle size) Diameter 14.4 μm, X-ray diffraction measurement diffraction peak: 4.6 Å, peak intensity ratio: 0.90). From the diffraction peak of X-ray diffraction measurement and the peak intensity ratio, it was found that the oil / fat component of the obtained powdered oil / fat composition contains β-type oil / fat.
When the powdery fat composition before pulverization was visually observed, it was a solid having voids with an increased volume. FIG. 16 is a photograph of the appearance of the powdery fat composition before pulverization. Moreover, when the powdery fat composition before grinding | pulverization was observed with 3D real surface view microscope VE-8800 (made by Keyence Corporation), many plate-shaped particle | grains overlapped. FIG. 17 is an electron micrograph (200 ×) of the powdery fat composition before pulverization.
Moreover, when the obtained powdered fats and oils composition was observed with 3D real surface view microscope VE-8800 (made by Keyence Corporation), the shape of the particles of the powdered fats and oils composition was a plate shape. 18 and 19 are electron micrographs (1000 times) of the powdered oil / fat composition.
The loose bulk density, aspect ratio, aspect ratio (2), average particle diameter, and X-ray diffraction were measured by the methods described above.

[Test Example 3] Production of various dry waters Dry waters of various aqueous components were produced with the formulations shown in Tables 4 to 8 (mass of the obtained dry water: 20 g). In addition, Table 9 shows the name of the aqueous component used and the manufacturer or seller.
Specifically, the powdered fat composition A and the aqueous component described in the above <Raw material> column are put into a mixing device (Labo Milser LM-PLUS Osaka Chemical Co., Ltd.) and mixed at 20000 rpm for about 1 second for a total of 5 times. By performing, dry water was obtained (Examples 3 to 26).
Photographs of the appearance of the obtained dry dry water are shown in FIGS.

  As a result of this test, it was found that by using the powdered oil / fat composition for dry water of the present invention, dry water of many kinds of liquid aqueous components can be produced.

Claims (13)

A powdery fat composition for dry water, comprising a powdery fat composition that satisfies the following condition (a).
(A) It is a powdery oil and fat composition containing an oil and fat component containing one or more XXX type triglycerides having a fatty acid residue X having carbon number x at positions 1 to 3 of glycerin, wherein the carbon number x is It is an integer selected from 10 to 22, the fat and oil component contains β-type fat and oil, the particles of the powdered fat and oil composition have a plate shape, and the loose bulk density of the powdery fat and oil composition is 0.05 to 0.6 g / cm ³ .   The powdered fat composition for dry water according to claim 1, wherein the fat component comprises β-type fat.   The powder oil composition for dry water according to claim 1 or 2, wherein the XXX type triglyceride contains 50 mass% or more when the total mass of the oil component is 100 mass%.   The powder fat composition for dry water according to any one of claims 1 to 3, wherein the carbon number x is an integer selected from 16 to 18. The powdered fat composition for dry water according to any one of claims 1 to 4, wherein the loose bulk density of the powdered fat composition is 0.1 to 0.4 g / cm ³ .   The powder oil and fat composition for dry water according to any one of claims 1 to 5, wherein an aspect ratio (2) of particles of the powder oil and fat composition is 2.5 or more. The said powdery fat composition contains the beta-type fat obtained by keeping the fat-and-oil composition raw material containing a XXX type triglyceride above the cooling temperature obtained from a following formula, and solidifying by cooling. The powder fat composition for dry water of any one of Claims 1.
Cooling temperature (° C.) = Carbon number ×× 6.6−68   The powdery fat composition contains a β-type fat obtained by cooling and solidifying an oil-fat composition raw material containing XXX-type triglyceride at a temperature equal to or higher than the melting point of the α-type fat corresponding to the β-type fat. The powder oil-fat composition for dry water of any one of Claims 1-7.   The powdery fat composition for dry water according to any one of claims 1 to 8, wherein an average particle size of the powdery fat composition is 20 µm or less.   Dry water comprising an aqueous component and the powdered oil composition for dry water according to any one of claims 1 to 9.   The dry water of Claim 10 formed by containing 50-99 mass parts of said powdered oil-fat compositions for dry water in 100 mass parts of said dry water.   The manufacturing method of dry water which has the process of mix | blending the powdered oil-fat composition for dry water of any one of Claims 1-9 with an aqueous component.   The manufacturing method of the dry water of Claim 12 which mix | blends the powder oil-fat composition for said dry water 50-99 mass parts in the said dry water 100 mass parts.

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