HK1251453B - Cleansing oil - Google Patents

Description

Cleansing oil

Technical Field

The invention relates to cleansing oil.

Background

With respect to the improvement of water resistance and durability of cosmetic products, makeup remover oil has become the mainstream of makeup removal (non-patent document 1).

As conventional techniques, there are cleansing oil containing polyglycerol medium-chain fatty acid ester (patent document 1), cleansing oil containing polyglycerol isononanoate (patent document 2), cleansing oil containing octyl octanoate (patent document 3), and the like.

The cleansing oil has a high cleansing power for cosmetic products, but on the contrary, has disadvantages of a reduced cleansing power when mixed with water or a greasy feeling remaining after rinsing, and further improvement of functions has been sought.

Documents of the prior art

Patent literature

Patent document 1: japanese patent laid-open No. 2005-162691

Patent document 2: japanese patent laid-open publication No. 2009 and No. 242253

Patent document 3: international publication No. 2014/119039

Non-patent document

Non-patent document 1: tsuda, J.Soc.cosmet.chem.Jpn.,39,3-9(2005)

Disclosure of Invention

The present invention addresses the problem of providing a makeup remover that is not prone to a reduction in makeup removing power even when water is mixed in, and that has a fine emulsified particle size during rinsing, so that oily and greasy feeling is not prone to remain.

Specifically, the gist of the present invention is as follows.

1. A cleansing oil characterized by containing the following components A to D,

component A: any one or both of a diester of a branched fatty acid having 14 or more and 22 or less carbon atoms and a polyglycerol, and a diester of an unsaturated fatty acid having 14 or more and 22 or less carbon atoms and a polyglycerol;

and B component: an ester of a fatty acid having 6 to 10 carbon atoms and a polyglycerol, wherein the ratio of the polymerization degree of the polyglycerol to the number of fatty acid bonds, i.e., the polymerization degree of the polyglycerol/the number of fatty acid bonds, is 2.0 to 4.0;

and C, component C: 1 or more than 2 selected from diester oil of dihydric alcohol and branched fatty acid, triester oil of glycerol and branched fatty acid, and diester oil of dicarboxylic acid and branched aliphatic alcohol;

and (D) component: a hydrophilic compound.

2. The cleansing oil according to claim 1, wherein the component D is 1 or more than 2 selected from the group consisting of polyoxyalkylene glyceryl ether, glycerin, polyglycerin, polyalkylene glycol, polyoxyalkylene polyglycerin ether, polyoxyalkylene alkylglucose and diol.

3. The cleansing oil according to 1. or 2. characterized in that the component D is 1 or more than 2 selected from PEG/PPG/polytetramethylene glycol-8/5/3 glycerin, tripropylene glycol, isoprene glycol, polypropylene glycol, PPG-14 polyglycerol ester-2 ether, PPG-10 methyl glucose, PPG-20 methyl glucose, PPG-9 diglycerin, DPG, diglycerin, polyglycerol-3 and polyglycerol-4.

The cleansing oil of the present invention can exhibit high cleansing power even in a state of being mixed with water, and therefore can be used with wet hands or in a bathroom or the like, and can be used very easily.

The cleansing oil of the present invention has a small emulsified particle size when suspended in a large amount of water, is excellent in washability, and is less likely to leave a greasy feeling derived from oil. The makeup remover oil can fully wash the makeup, so pores are not easy to be blocked, the skin is not rough, and the burden of friction and the like on the skin during makeup removal can be reduced.

Drawings

Fig. 1 is a graph showing the results of evaluation of detergency when water was mixed into the cleansing oils of example 1 and comparative examples 1 and 2.

Fig. 2 is a graph showing the results of sensory evaluation (makeup removal) of the makeup remover oils of example 2 and comparative examples 3 and 4.

Fig. 3 is a graph showing the results of sensory evaluation (rinsing speed) of the cleansing oils of example 2 and comparative examples 3 and 4.

Fig. 4 is a graph showing the results of sensory evaluation (hand after washing) of the cleansing oils of example 2 and comparative examples 3 and 4.

Detailed Description

With the increasing use of cosmetic products having high water resistance, cleansing oils have been widely used as makeup removers suitable for these products. Since cleansing oils are usually formulated by blending a surfactant with an oily component, oily dirt on the skin can be effectively dissolved and dispersed. The cleansing oil is in an O/W emulsified state during rinsing, as with cleansing cream, and the oily components including dirt are dispersed in water to wash off the dirt.

"component A"

As the nonionic surfactant, any one or both of a diester of a polyglycerol and a branched fatty acid having 14 to 22 carbon atoms, and a diester of a polyglycerol and an unsaturated fatty acid having 14 to 22 carbon atoms can be used as the component a in the cleansing oil of the present invention.

Examples of the diester of a branched fatty acid having 14 to 22 carbon atoms and polyglycerin and the diester of an unsaturated fatty acid having 14 to 22 carbon atoms and polyglycerin of component a include polyglycerin-10 diisostearate and polyglycerin-10 dioleate. The component a is a diester of a branched fatty acid having 14 or more and 22 or less carbon atoms and a polyglycerol, or a diester of an unsaturated fatty acid having 14 or more and 22 or less carbon atoms and a polyglycerol, preferably a diester of a branched fatty acid having 14 or more and 22 or less carbon atoms and a polyglycerol having a polymerization degree of 5 or more and 15 or less, or a diester of an unsaturated fatty acid having 14 or more and 22 or less carbon atoms and a polyglycerol having a polymerization degree of 5 or more and 15 or less.

The amount of component a is preferably 1% by mass or more and 30% by mass or less, particularly preferably 1% by mass or more and 20% by mass or less, and the component a is any one or both of a diester of a branched fatty acid having 14 or more and 22 or less carbon atoms and a polyglycerol and a diester of an unsaturated fatty acid having 14 or more and 22 or less carbon atoms and a polyglycerol.

"component B"

As the nonionic surfactant, an ester of a fatty acid having 6 to 10 carbon atoms and polyglycerin as the component B can be further used in the cleansing oil of the present invention, and the ratio of the polymerization degree of polyglycerin to the number of bonds of fatty acid (the polymerization degree of polyglycerin/the number of bonds of fatty acid) is 2.0 to 4.0.

The ester of a fatty acid having 6 to 10 carbon atoms and a polyglycerol as component B has a ratio of the polymerization degree of the polyglycerol to the number of bonds of the fatty acid (the polymerization degree of the polyglycerol/the number of bonds of the fatty acid) of 2.0 to 4.0, and includes behenyl octaisononanoate, behenyl heptaisononanoate, behenyl decaisononanoate, lignocanyl octaisononanoate, pentadecanyl heptaisononanoate, ceryl hexacaprylate, and ceryl dioctanoate.

The amount of component B is preferably 1 mass% or more and 30 mass% or less, and particularly preferably 1 mass% or more and 20 mass% or less, and component B is an ester of a fatty acid having 6 to 10 carbon atoms and polyglycerol, and the ratio of the polymerization degree of polyglycerol to the number of fatty acid bonds (polymerization degree of polyglycerol/number of fatty acid bonds) is 2.0 to 4.0.

"component C"

In the present invention, 1 or 2 or more selected from the group consisting of diester oil of a diol and a branched fatty acid, triester oil of glycerin and a branched fatty acid, and diester oil of a dicarboxylic acid and a branched aliphatic alcohol are used as the component C.

Examples of the diester oil of a diol and a branched fatty acid as component C include 1, 3-butanediol diisononanoate, ethylene glycol di-2-ethylhexanoate, propylene glycol di-2-ethylhexanoate, 1, 3-butanediol di-2-ethylhexanoate, dipropylene glycol di-2-ethylhexanoate, neopentyl glycol di-2-ethylhexanoate, 1, 2-pentanediol di-2-ethylhexanoate, ethylene glycol diisononanoate, propylene glycol diisononanoate, dipropylene glycol diisononanoate, neopentyl glycol diisononanoate, 1, 2-pentanediol diisononanoate, ethylene glycol dihexanoate, propylene glycol dihexanoate, 1, 3-butanediol dihexanoate, dipropylene glycol dihexanoate, neopentyl glycol dihexanoate, 1, 2-pentanediol dihexanoate, ethylene glycol dicaprylate, and mixtures thereof, Propylene glycol dicaprylate, 1, 3-butylene glycol dicaprylate, dipropylene glycol dicaprylate, neopentyl glycol dicaprylate, 1, 2-pentanediol dicaprylate, ethylene glycol dicaprate, propylene glycol dicaprate, 1, 3-butylene glycol dicaprate, dipropylene glycol dicaprate, neopentyl glycol dicaprate, 1, 2-pentanediol dicaprate, and the like.

Examples of the triglyceride oil of glycerin and branched fatty acids as the component C include tricaprylin (glycerol tri-2-ethylhexanoate), triisostearin, and the like.

Examples of the diester oil of a dicarboxylic acid and a branched aliphatic alcohol as the component C include diethylhexyl succinate.

As the component C, diester oil of a diol and a branched fatty acid, triester oil of glycerin and a branched fatty acid, or diester oil of a dicarboxylic acid and a branched aliphatic alcohol, 1, 3-butanediol diisononanoate, tricaprylin, and diethylhexyl succinate are particularly preferable.

The amount of component C is preferably 10 mass% or more and 90 mass% or less, particularly preferably 20 mass% or more and 80 mass% or less, and component C is 1 or 2 or more selected from the group consisting of diester oil of dihydric alcohol and branched fatty acid, triester oil of glycerin and branched fatty acid, and diester oil of dibasic carboxylic acid and branched aliphatic alcohol.

"component D"

In the present invention, a hydrophilic compound is used as the component D.

As the hydrophilic compound of the component D, polyoxyalkylene glycerin ether, glycerin, polyglycerin, polyalkylene glycol, polyoxyalkylene polyglycerin ether, polyoxyalkylene alkylglucose, and diol are preferable.

The polyoxyalkylene glyceryl ether as the component D includes PEG/PPG/polytetramethylene glycol-8/5/3 glycerin, and the like.

Examples of the polyglycerin as the component D include diglycerin, polyglycerin-3 and polyglycerin-4.

Examples of the polyalkylene glycol as the component D include triethylene glycol, polyethylene glycol, and polypropylene glycol.

The polyoxyalkylene polyglycerin ether as the component D includes PPG-14 polyglycerin-2 ether, PPG-9 diglycerol and the like.

The polyoxyalkylene alkylglucose as the component D includes PPG-10 methylglucose, PPG-20 methylglucose and the like.

Examples of the diol as component D include isoprene glycol and DPG.

As the hydrophilic compound as the component D, PEG/PPG/polytetramethylene glycol-8/5/3 glycerin, tripropylene glycol, isoprene glycol, polypropylene glycol, PPG-14 polyglycerin-2 ether, PPG-10 methyl glucose, PPG-20 methyl glucose, PPG-9 diglycerin, DPG, diglycerin, polyglycerin-3, and polyglycerin-4 are preferable, and PEG/PPG/polytetramethylene glycol-8/5/3 glycerin, PPG-10 methyl glucose, PPG-20 methyl glucose, PPG-9 diglycerin, and polyglycerin-3 are particularly preferable, when the cosmetic expression names are used.

The amount of the hydrophilic compound of component D is preferably 1 mass% or more and 60 mass% or less, and particularly preferably 5 mass% or more and 50 mass% or less.

The cleansing oil of the present invention may contain a nonionic surfactant other than the following components: component A is a diester of a branched fatty acid having 14 to 22 carbon atoms and a polyglycerol, or a diester of an unsaturated fatty acid having 14 to 22 carbon atoms and a polyglycerol; the component B is an ester of a fatty acid having 6 to 10 carbon atoms and a polyglycerol, and the ratio of the polymerization degree of the polyglycerol to the number of bonds between the fatty acids (the polymerization degree of the polyglycerol/the number of bonds between the fatty acids) is 2.0 to 4.0. For example, polyoxyethylene (10) isostearyl ether, polyoxyethylene (10) octyldodecyl ether, etc. may be blended as the polyoxyethylene alkyl ether, sorbitan isostearate, sorbitan laurate, sorbitan cocoate, etc. may be blended as the sorbitan fatty acid ester, polyethylene glycol (8) isostearate, polyethylene glycol (10) oleate, etc. may be blended as the polyoxyethylene castor oil, polyethylene glycol (30) hydrogenated castor oil, etc. may be blended as the polyoxyethylene sorbitan fatty acid ester, polyethylene glycol (20) sorbitan coconut oil fatty acid ester, etc. may be blended as the polyoxyethylene glyceryl ether fatty acid ester, polyethylene glycol (40) glyceryl ether isostearate, polyethylene glycol (30) glyceryl ether triisostearate, etc. may be blended.

In addition to the nonionic surfactant, an anionic surfactant, a cationic surfactant, and an amphoteric surfactant may be added to the cleansing oil of the present invention within a range not interfering with the effects of the present invention.

The cleansing oil of the present invention may contain an oily thickener. Examples of the oily thickener include inulin stearate, behenic acid/diglyceride, dextrin palmitate, and dextrin palmitate/caprylic acid.

Oils other than diester oils of dihydric alcohols and branched fatty acids, triester oils of glycerin and branched fatty acids, or diester oils of dibasic carboxylic acids and branched aliphatic alcohols may be blended in the cleansing oil of the present invention within a range not to impair the effects of the present invention. For example, hydrocarbon oils, triglycerides, wax esters, higher alcohols, and the like may be blended.

In addition, various materials commonly used in cosmetics, for example, organic and inorganic powders, preservatives, antioxidants and other functional ingredients may be blended in the range not to impair the effects of the present invention.

Furthermore, water may be added to the cleansing oil of the present invention. However, when a large amount of water is added, the oil-in-water type emulsion composition cannot be obtained by completely enclosing the oil phase with water. When water is added, it is preferably 20% by mass or less, and water is particularly preferably not added.

Examples

[ evaluation of self-emulsifiability and detergency ]

The makeup remover oils of example 1 and comparative examples 1 and 2 were prepared according to the recipe of table 1.

TABLE 1

Composition (I)		Example 1	Comparative example 1	Comparative example 2
					Polyglyceryl-10 diisostearate	Component A	12	14	12
Polyglyceryl-20 hexacaprylate	Component B		6
					Polyglycerol-20 octaisononanoate	Component B	8		8
Diisononanoic acid BG	Component C	70		80
					Cetyl ethylhexanoate			80
PEG/PPG/polytetramethylene glycol-8/5/3 glycerol	Component D	5
					Glycerol	Component D	5

Polyglycerol-20 hexacaprylate: glyceryl hexacaprylate

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

[ evaluation of self-emulsifiability ]

Test method

0.1g of the cleansing oil prepared above was gently dropped into 100g of ion-exchanged water, and the mixture was left standing overnight to prepare a 0.1% aq specimen.

The volume average particle diameter of the prepared specimen was measured by a dynamic light scattering method using a Zeta potential particle diameter measuring system (apparatus name: ELSZ-1000ZS, manufactured by Otsuka electronics Co., Ltd.).

The evaluation results are shown in table 2.

TABLE 2

	Example 1	Comparative example 1	Comparative example 2
				Particle size (nm)	112	168	149

Evaluation of

Example 1 had a smaller particle size than comparative examples 1 and 2.

Further, the smaller the particle size, the higher the self-emulsification property, and the more excellent the cleaning property.

[ evaluation of detergency ]

Test method

(1) 0.004g of lipstick (Fancl Moisture Rouge P #84 Velvet Red) was applied within a 2cm by 2cm range of 3cm by 6cm white artificial leather and dried for 30 minutes. This was used as a test specimen.

(2) The color difference of the test specimen thus prepared was measured using a color difference meter (apparatus name: CM-2600d, manufactured by Konica Minolta Co., Ltd.) (L1).

(3) A test sample was prepared by adding a predetermined amount of water to 100% by weight of the cleansing oil prepared in example 1 or comparative examples 1 and 2.

(4) 0.1ml of a test specimen was dropped on the test specimen prepared in the above (1), and rubbed 10 times with a rubbing tester (apparatus name: Mini-Martindale, James H.Heal & Co.Ltd.).

(5) Then, 0.2ml of ion-exchanged water was dropped on the test specimen, and the specimen was similarly rubbed 10 times by a rubbing machine.

(6) The subject was rinsed thoroughly with water and allowed to dry.

(7) The color difference of the test specimen after drying was measured using a color difference meter (L2).

(8) The cosmetic cleansing rate was calculated by the following calculation formula.

Cosmetic cleaning ratio (%) ═ 100 × (L1-L2)/(L1-L0)

Wherein L0 is the color difference of the white artificial leather before lipstick coating

The results are shown in FIG. 1.

The cleansing rates of the cosmetics of example 1 and comparative examples 1 and 2 were 98%, 97% and 98%, respectively, when no water was added.

When a considerable amount of water of 80% was added, the cosmetic washing rate of 96% was maintained in example 1, whereas the cosmetic washing rate was decreased in comparative example 1 of 51% and comparative example 2 of 87%.

When a considerable amount of water of 100% was added, the cosmetic cleaning rate of example 1 was 88%, whereas the cosmetic cleaning rate of comparative example 1 was 52% and that of comparative example 2 was 69%, which was remarkably decreased.

Therefore, it was confirmed that the makeup removing ability of example 1 was less likely to be reduced even when water was mixed therein, as compared with comparative examples 1 and 2, which did not contain components C and D.

[ sensory evaluation test ]

The makeup remover oils of example 2 and comparative examples 3 and 4 were prepared using the formulations of table 3 below.

TABLE 3

Polyglycerol-20 hexacaprylate: glyceryl hexacaprylate

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

Test method

The samples were individually administered to 31 professional judges for three days by blinding, and after administration, questionnaires were answered.

The evaluation items and answer options are as follows.

Evaluation items: makeup removal

Answer options: good, not good and not bad, bad and bad

Evaluation items: speed of flushing

Answer options: good, not good and not bad, bad and bad

Evaluation items: hand feeling after cleaning

Answer options: feeling little, clean, rough, smooth, others

The makeup removal evaluation results of example 2 and comparative examples 3 and 4 are shown in fig. 2.

The number of "good" and "good" answers were summed up, and the number of "poor" and "bad" answers were summed up, and the ratio of the numbers of answers was shown in the graph. In comparative examples 3 and 4, which do not contain component D, the proportions of poor makeup removal and inferior makeup removal were 12.9% and 6.5%, respectively, and example 2 was 0%.

The method of use by the professional panelists was not limited, and it was generally expected that water was mixed during makeup removal, and it was confirmed that example 2 having a high solubilizing power of water stably exhibited the effect of makeup removal.

The evaluation results of the rinsing rates of example 2 and comparative examples 3 and 4 are shown in fig. 3.

The number of "good" and "good" answers were summed up, and the number of "poor" and "bad" answers were summed up, and the ratio of the numbers of answers was shown in the graph.

Example 2 compared with comparative examples 3 and 4 containing no component D, the ratio of answers "good" and "good" was large, and the ratio of answers "poor" and "bad" was small, with respect to the rinsing speed.

Since example 2 contains the component D, the emulsified particle size becomes small, and it is presumed that the rinsing speed becomes fast.

The hand evaluation results after washing of example 2 and comparative examples 3 and 4 are shown in fig. 4.

Example 2 has a large proportion of the answer "smooth" with respect to the hand after washing, compared with comparative examples 3 and 4 which do not contain component D.

Since the example contains the component D, the emulsified particle size becomes small, and therefore, it is considered that the residue of the cleansing oil is small and the feeling is smooth.

[ investigation of surfactants ]

The cleansing oils of examples 3 to 9 were prepared according to the following formulations of table 4.

The cleansing oils of comparative examples 5 to 14 were prepared according to the following formulation of table 5.

The cleansing oils of examples 10 to 15 and comparative examples 15 to 18 were prepared according to the following formulation of table 6.

The appearance of the obtained cleansing oil was observed and is shown in tables 4 to 6.

The results of measuring the solubilizing power of water and the emulsified particle size when water was added in the following order are shown in tables 4 to 6.

< measurement of solubilizing power of Water (test for evaluating "cleansing Power when used by hand wetted with Water) >)

In the oil-based makeup-removing cosmetic, it is important that the oil phase is continuous because the oily component dissolves oily cosmetic stains.

In the present evaluation method, the amount of water that can be solubilized transparently relative to 100% by mass of the oil-based makeup remover cosmetic is evaluated as the water solubilizing power.

Specifically, water was added dropwise while stirring each oily makeup remover cosmetic, and the amount of water added until it became cloudy was measured.

The term "maintaining transparency even with the addition of water" means that the emulsion composition does not become an O/W emulsion composition (either of a reversed micelle phase, a lamellar liquid crystal phase, or a bicontinuous phase microemulsion) even when mixed with water.

The results are shown in tables 4, 5 and 6 as water solubilizing power.

< measurement of emulsion particle size when O/W type emulsion composition is prepared by adding Water (evaluation test for No residual oil feeling after washing with Water) >

An O/W type emulsified composition was prepared by adding water in an amount 60 times the amount of the makeup remover cosmetic, and the particle size distribution in the composition was measured by a laser diffraction method using a particle size analyzer (device name: Mastersizer-2000, manufactured by Malvern Instruments Ltd.) to calculate the volume average particle size as the emulsified particle size.

When the emulsified particle size is large, oily feeling remains on the skin. When the emulsified particle size formed by adding water is 0.3 μm or less, the water can be washed quickly and lightly.

Further, since the lower limit of the measurement of the particle size of Mastersizer-2000 is 0.1. mu.m, the value of the measurement of the volume average particle size is large in the vicinity of 0.2. mu.m. Since the measurement is performed near the lower limit of the measurement, the actual particle diameter may be further reduced. However, it is considered that Mastersizer-2000 is used as long as it is possible to determine whether or not the volume average particle size is 0.3 μm or less.

The results are shown in tables 4, 5 and 6 as emulsified particle diameters when water is added.

TABLE 4

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

Polyglycerol-20 hexacaprylate: glyceryl hexacaprylate

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

TABLE 5

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

TABLE 6

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

As shown in tables 4 to 6, the cleansing oils of examples 3 to 15 of the present invention were transparent and uniform, had a water solubilizing power of 50% or more, and had an emulsified particle size of 0.3 μm or less. That is, it is suggested that the cleansing oil of the present invention exhibits excellent washability even when mixed with water.

The cleansing oils of comparative examples 5 to 10, 12, 14, 17, and 18 had a water layer separated from an oil layer, and were thus not suitable for use as cleansing oils. Further, the cleansing oils of comparative examples 11, 13, 15, and 16 were transparent and uniform in appearance, but poor in water solubilization ability or poor in washability in a state of being mixed with water, since the emulsified particle size was 2.4 μm or more.

[ study of oil agent ]

The cleansing oils of examples 16 and 17 and comparative examples 19 to 24 were prepared according to the recipe shown in Table 7 below.

The cleansing oils of example 18 and comparative examples 25 to 28 were prepared according to the following formulation of Table 8.

The cleansing oils of comparative examples 29 to 38 were prepared according to the formulation of table 9 below.

The appearance was observed in the same manner as in tables 4 to 6, and the solubilizing power of water and the emulsified particle size when water was added were measured.

TABLE 7

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

TABLE 8

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

TABLE 9

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

As shown in tables 7 to 9, the cleansing oils of examples 16 to 18 of the present invention were transparent and uniform, had a water solubilizing power of 50% or more, and had an emulsified particle size of 0.3 μm or less. That is, it is suggested that the cleansing oil of the present invention exhibits excellent washability even when mixed with water.

The cleansing oils of comparative examples 19 to 38 were shown to be poor in cleansing power and washability in a state of water mixed therein, because the oil layer and the water layer were separated from each other in many cases, and the water solubilizing power was poor even though the appearance was uniform, or the emulsified particle size was 7.0 μm or more.

[ investigation of Effect of D component ]

The cleansing oils of examples 19 to 21 and comparative example 39 were prepared according to the recipe shown in table 10 below.

The makeup remover oils of example 22 and comparative example 40 were prepared according to the recipes of table 11 below.

The cleansing oils of example 23 and comparative example 41 were prepared according to the recipes of table 12 below.

The makeup remover oils of example 24 and comparative example 42 were prepared according to the recipe of table 13 below.

The cleansing oils of examples 25 and 26 and comparative example 43 were prepared according to the recipe of table 14 below.

The appearance was observed in the same manner as in tables 4 to 6, and the solubilizing power of water and the emulsified particle size when water was added were measured.

Watch 10

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

TABLE 11

Polyglycerol-20 hexacaprylate: glyceryl hexacaprylate

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

TABLE 12

Polyglycerol-20 hexacaprylate: glyceryl hexacaprylate

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

Watch 13

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

TABLE 14

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

From tables 10 to 14, it was confirmed that the addition of component D improves the water solubilizing ability. Further, it is clear from tables 13 and 14 that component D also has the effect of reducing the emulsified particle size when water is added.

[ investigation of component D ]

The cleansing oils of examples 27 to 31 were prepared according to the following formulations in table 15.

The cleansing oils of examples 32 to 40 were prepared according to the following formulations in table 16.

The cleansing oils of examples 41 to 43 were prepared according to the recipe shown in Table 17 below.

The appearance was observed in the same manner as in tables 4 to 6, and the solubilizing power of water and the emulsified particle size when water was added were measured.

Watch 15

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

Polypropylene glycol: PO3G H500 manufactured by WEYL CHEM

PPG-14 polyglycerol ester-2 ether: SY-DP14T manufactured by Nippon Kagaku Kogyo Co., Ltd

TABLE 16

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

PPG-10 methyl glucose: MACBIOBRIDE MG-10P, manufactured by Nissan oil Co

PPG-20 methyl glucose: MACBIOBRIDE MG-20P, manufactured by Nissan oil Co

PPG-9 diglycerin: SY-DP9 PRODUCED BY NIHODOKAGE KOKAI

TABLE 17

Polyglycerol-20 hexacaprylate: glyceryl hexacaprylate

Polyglycerol-20 octaisononanoate: octadecanoic acid eicosaglyceride

Diisononanoic acid BG: 1, 3-butanediol diisononanoate

PEG/PPG/polytetramethylene glycol-8/5/3 glycerol: WILBRIDE S-753D manufactured by Nikkiso K.K

As shown in tables 15 to 17, the cleansing oil of the present invention is excellent in water solubilizing ability, and the emulsified particle size when water is added is 0.3 μm or less.

Claims (2)

1. A cleansing oil characterized by containing the following components A to D,

component A: a diester of a branched fatty acid having 14 to 22 carbon atoms and polyglycerol;

and B component: an ester of a fatty acid having 6 to 10 carbon atoms and a polyglycerol, wherein the ratio of the polymerization degree of the polyglycerol to the number of fatty acid bonds, i.e., the polymerization degree of the polyglycerol/the number of fatty acid bonds, is 2.0 to 4.0, and is 1 or more of eicosaglycetin octaisononanoate, docosanoyl hexacaprylate, and hexaglyceryl dicaprylate;

and C, component C: 1 or more than 2 selected from diester oil of dihydric alcohol and branched fatty acid, triester oil of glycerol and branched fatty acid, and diester oil of dicarboxylic acid and branched aliphatic alcohol;

and (D) component: 1 or 2 or more selected from polyoxyalkylene glycerol ether, glycerol, polyglycerol, polyalkylene glycol, polyoxyalkylene polyglycerol ether, polyoxyalkylene alkylglucose and diol.

2. The cleansing oil according to claim 1, wherein the component D is 1 or more selected from the group consisting of PEG/PPG/polytetramethylene glycol-8/5/3 glycerol, tripropylene glycol, isoprene glycol, polypropylene glycol, PPG-14 polyglyceryl-2 ether, PPG-10 methyl glucose, PPG-20 methyl glucose, PPG-9 diglycerol, DPG, diglycerol, polyglyceryl-3, and polyglyceryl-4.