JPH1160442A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject cosmetic which is free from problems on foul odor, discoloration, stability with time and skin irritation and has fine spread, feeling with freshness on use, high moisturizing effect and pliability effect by formulating reductive products of hydrocarbons contained in plant raw materials. SOLUTION: This cosmetic is obtained by formulating, as major components, reductive products of hydrocarbons, which are preferably composed of 25 to 30 carbon atoms and have molecular weights of 340-480 and boiling points of 390-490 deg.C, contained in at least one kind of plant raw materials selected from olive, soybean, amaranthaceous and palm seeds and rice bran. On this cosmetic, oily extracts from raw materials are blended in order to formulate reductive products of hydrocarbons. The oily extract extracted from raw materials is preferably used in order to formulate hydrocarbons in an amount of 90 wt.% or more and blended in an amount of 0.01-100 wt.%. As the type of cosmetic, e.g. various creams, emulsion and toilet water are illustrated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention is characterized in that it contains, as a main component, a hydrocarbon obtained by reducing a plant-derived extract, which has no problems such as odor, coloring, stability over time, and skin irritation. The present invention relates to a cosmetic that has good spreadability, a refreshing feeling in use, and has a high moisturizing effect, a whitening effect, a softening effect, and the like.

[0002]

2. Description of the Related Art Conventionally, vegetable oils have been widely used as raw materials for cosmetics because of their excellent lubricating action, moisturizing effect, and good usability. However, vegetable oil-containing cosmetics have poor storage stability except when hardened vegetable oils are used, causing deterioration odor and coloring in product systems, and furthermore, generate peroxides and become a factor that irritates the skin.
For this reason, for example, methods have been employed in which the compounding amount is limited and the function cannot be sufficiently exhibited, or a method is used in combination with a synthetic oil.

[0003] The above-mentioned hardened vegetable oil is an oil or fat whose oxidative stability is enhanced by converting unsaturated fatty acids, which cause a decrease in oxidative stability, to saturated fatty acids by hydrogenation. There are drawbacks that the workability is extremely low and that a grease-like feeling is given. On the other hand, synthetic oils often have problems in safety, hydrolytic stability, and the like, and do not always meet the needs of consumers due to the tendency toward nature in recent years.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to blend an oily extract derived from a plant, to have no problem of odor, coloring, stability with time, skin irritation, etc. An object of the present invention is to provide a cosmetic having a high moisturizing effect, a whitening effect, a softening effect, and the like.

[0005]

Means for Solving the Problems In order to achieve the above object, the present inventors have made intensive studies and found that olives, soybeans,
Cosmetics containing a reduced product of hydrocarbons contained in at least one plant material selected from amaranth and palm seeds and rice bran have no problems such as odor, coloring, stability over time and skin irritation The present invention has been found to have good functions of having a good moisturizing effect, a whitening effect, a softening effect, etc., with good spreadability and a refreshing feeling of use, and completed the present invention.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The starting materials of the hydrocarbon-reduced product contained in the cosmetic of the present invention are plant materials, that is, olive, soybean, amaranth and palm seeds, and rice bran. In addition, as a fat obtained by pressing these plant materials by a conventional method such as pressing or extraction using an organic solvent such as hexane, crude oil, its degummed oil, deoxidized oil, or decolorized oil can be used, These can be collected from the usual edible oil production process. Further, in the present invention, a deodorized distillate obtained when deodorizing such a vegetable oil or fat by an ordinary method can be used as a raw material. In the present invention, the thus obtained olive oil, soybean oil, amaranthus oil, palm oil, rice bran oil or the like or a deodorized distillate thereof can be used as a raw material. Or each deodorized distillate of rice bran oil is advantageous. These raw materials do not necessarily have to be a single kind, and two or more kinds may be mixed.
The mixing may be appropriately performed at the raw material stage or at each processing stage of the raw material.

The cosmetic of the present invention is blended with an oily extract of the above-mentioned raw material so as to contain a reduced product of a hydrocarbon. As the oily extract, it is desirable to use one extracted from the raw material so that the hydrocarbon content becomes 90% by weight or more. When the hydrocarbon content is less than 90% by weight, that is, when the content of components other than hydrocarbons is 10% by weight or more, the storage stability such as deteriorating odor and coloring may be reduced in a product system. In order to obtain an oily extract containing a high-purity hydrocarbon, a crude oil obtained from the plant material, a degummed oil, a deoxidized oil, or a decolorized oil, or a triglyceride, a free fatty acid, or the like from a deodorized distillate thereof May be separated by a treatment such as saponification decomposition or esterification, followed by distillation treatment.

[0008] Further, the hydrocarbon component is subjected to a reduction treatment. By performing the reduction treatment, it is possible to improve the stability of the extract and to improve the color. The reduction treatment includes hydrogenation. The degree of processing may be appropriately adjusted depending on the required stability and chromaticity. Further, the obtained hydrocarbon reduced product may be further decolorized and deodorized by a known method.

The reduced product of the hydrocarbon obtained by the above method is
It has a branched and straight chain hydrocarbon having 25 to 35 carbon atoms as a main component, has a molecular weight of 340 to 480, and has a boiling point of 390 to 490 ° C.

The amount of the oily extract containing the plant-derived hydrocarbon-reduced product as the main component is 0.01 to 1 based on the total amount of the final composition.
00% by weight. If it is less than 0.01% by weight, the desired effect cannot be obtained. The extract itself may be used as a cosmetic, in which case the blending amount will be 100% by weight. Further, the type of the cosmetic of the present invention is not particularly limited, but it is particularly desirable to target various known cosmetics used for the skin, such as cold cream, burnishing cream, cleansing cream, Various creams such as emollient cream and sunscreen cream, emulsions, lotions, foundations, facial cleansers, lipsticks, serums, packs and the like can be mentioned. Although there is no limitation on toiletry products as well, soaps, bath additives and the like can be preferably exemplified.

The cosmetic of the present invention can be prepared by a conventional method using an oily extract containing a plant-derived hydrocarbon-reduced product as a main component and other known components. That is, known oil components, water-soluble components, surfactants, humectants, thickeners, preservatives, pigments, powders, pH adjusters, antioxidants, ultraviolet absorbers, fragrances, pigments, purified water, etc. May be blended.

[0012]

The present invention will be described below with reference to examples and comparative examples. % In Examples shows% by weight. Note that the present invention is not limited to the embodiments described here.

Reference Production Example (Preparation of Extract Used in the Present Invention) Sodium hydroxide was added to 100 g of deodorized distillate of rice bran oil, and hydrolyzed to remove saponified product. Concentrated. 25g of target extract which is subjected to hydrogenation treatment and has high stability and is mainly composed of hydrocarbons
I got 0.25 g of the extract sample prepared above was saponified in 50 ml of 1N potassium hydroxide / ethanol solution,
The extraction of unsaponifiables was repeated three times with 50 ml of petroleum ether. Thereafter, the petroleum ether layer was washed with water and dehydrated, and the solvent was distilled off. The extract was mixed with 300 ml of diethyl ether /
After being dissolved in hexane (1/99) and loaded on a 12 g column of silica gel, the solvent was distilled off, and the recovered weight, that is, the hydrocarbon fraction was 0.23 g (92% content). The molecular weight is 340-480, and the boiling point is 3
Those having a temperature of 90 to 490 ° C. were the main components. Further, the same sample was subjected to gas chromatography (GLC) to analyze the composition. In addition, as an index, carbon number 24, 30 and 3
5 straight-chain saturated hydrocarbons were used.

The GLC conditions are as follows. GL
C apparatus: 5890 manufactured by Hewlett-Packard Company, column: DB-17HT (15 m × 0.319 mm, fill
mthickness: 0.15 μm, J & W SC
IENTIFIC), injection method, split method (split ratio 1/10), column temperature: 270 ° C., carrier gas: helium. The chart obtained as a result of the GLC analysis is shown in FIG. As a result, it was confirmed that this sample had a hydrocarbon having 25 to 35 carbon atoms as a main component.

In the following examples, rice bran oil extract prepared in Reference Production Example was used. The sensory tests in the examples were performed as follows. [Sensory test] Perform a practical test by 20 panelists, "feel refreshing usability", "good enough spread"
The number of panelists who answered "sufficiently moisturizing effect" and "sufficiently softening effect" was shown.

Example 1 (Cream) A cream was prepared according to the formulation shown in Table 1 and the following production method. Also prepare a cream for comparison in the same way,
Sensory evaluation of both creams was performed. Table 2 shows the results. The cream of the present invention showed good stretch on the skin, and showed a refreshing feeling of use, a sufficient moisturizing effect, and a softening effect.

[0017]

[Table 1]

[Manufacturing method] 1 to 6, 9, 10 and 12 were mixed while heating.
Keep at ~ 80 ° C. Add 7, 8 and 11 to 13 and mix while heating.
Keep at 0-80 ° C. Stir while gradually adding the mixture to the mixture of
Emulsify uniformly. In a water bath and continue to stir to room temperature to obtain a cream.

[0019]

[Table 2]

Example 2 (Emulsion) An emulsion was prepared according to the formulation shown in Table 3 and the following production method. In addition, emulsions for comparison were prepared in the same manner, and the sensory evaluation of both emulsions was performed. Table 4 shows the results. The emulsion of the present invention showed good stretch on the skin, and showed a refreshing feeling of use, a sufficient moisturizing effect, and a softening effect.

[0021]

[Table 3]

[Manufacturing method] 1-8, 11 and 13 were mixed while heating, and 70-8
Keep at 0 ° C. Add 9, 10 and 12 to 14 and mix while heating.
Keep at 0-80 ° C. Stir while gradually adding the mixture to the mixture of
Emulsify uniformly. In a water bath and continue stirring until it reaches room temperature to obtain an emulsion.

[0023]

[Table 4]

Example 3 (Lotion) A lotion was prepared according to the formulation shown in Table 5 and the following production method. In addition, a lotion for comparison was prepared in the same manner, and the sensory evaluation of both lotions was performed. Table 6 shows the results. The lotion of the present invention showed good stretch on the skin, and showed a refreshing feeling of use and a sufficient moisturizing effect.

[0025]

[Table 5]

[Manufacturing method] 1 to 3 and 7 to 9 are added to 12 and dissolved at room temperature. 13. Add 4-6 and 10, 11 to 13 and dissolve at room temperature. Stir while gradually adding the mixture to the mixture of
Emulsify uniformly.

[0027]

[Table 6]

[0028]

According to the present invention, it contains a reduced product of hydrocarbons (25 to 35 carbon atoms) contained in at least one plant material selected from olive, soybean, amaranth and palm seeds and rice bran. Provided cosmetics are provided. This cosmetic does not have problems such as odor, coloring, stability with time, and skin irritation, and also has good elongation, a refreshing feeling in use, and a high moisturizing effect and a softening effect.

[Brief description of the drawings]

FIG. 1 is a chart of gas chromatography analysis of an extract obtained in Reference Production Example.

Claims (3)

[Claims] 1. A cosmetic comprising a reduced product of hydrocarbons contained in at least one plant material selected from olive, soybean, amaranth and palm seeds and rice bran. 2. The cosmetic according to claim 1, wherein the hydrocarbon-reduced product mainly has 25 to 35 carbon atoms. 3. The hydrocarbon-reduced product is mainly composed of a product having a molecular weight of 340 to 480 and a boiling point of 390 to 490 ° C.
The cosmetic described.