JPH06227939A - Cosmetic - Google Patents

Abstract

PURPOSE:To obtain a cosmetic using a vegetable oil, excellent in affinity, emollient and water holding properties, softening permeability and dispersibility and having high safety. CONSTITUTION:This cosmetic comprises lesquerella oil contained in an amount of 25-26% in a seed of a herb belonging to the genus Lesquerella and/or its hydrogenated substance. The lequerella oil has the composition of about 56% lesquerolic expressed by formula I, 14-17% oleic acid (containing isomers), 7-9% linoleic acid, 9-11% linolenic acid, 3-4% auricolic acid expressed by formula II, densipolic acid expressed by formula III and a small amount of fatty acids and the fatty acid, expressed by formula I and accounting for a half or more thereof is capable of manifesting characteristics of no stickiness at all in spite of its affinity for the skin, excellent in emollient properties derived from hydroxyl group and far better moistness imparted to the skin than that of other vegetable oils. Furthermore, the special fatty acids (formulas II and III) contained in a small amount have characteristics improved in softening permeability for the skin due to their excellence in water holding properties.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cosmetics, and more particularly to cosmetics containing rescrelar oil or a hydrogenated product thereof.

[0002]

2. Description of the Related Art Conventionally, many vegetable oils such as olive oil, camellia oil, castor oil, macadamia nut oil and medfoam oil have been used in cosmetics.

Resclera is a plant that is wild in Arizona and Texas in the United States, and its cultivation has just recently been studied.

[0004]

However, conventional cosmetics using vegetable oils cannot simultaneously have affinity for skin and non-greasy properties, and also have emollient, water-holding and soft penetrating properties. It is necessary to add various additives in order to improve the heat resistance and the dispersibility of the filler, and further, there are various problems in terms of touch to the skin, stability, and safety.

An object of the present invention is to provide a cosmetic using a vegetable oil which is excellent in affinity, emollient property, water-holding property, soft penetrating property, dispersibility and is highly safe.

[0006]

The inventors of the present invention have conducted extensive studies to solve the above problems, and as a result,
Stickiness, emollientity, and moistness are related to the composition of fatty acids and the positions of hydroxyl groups.
The present invention has been completed based on the finding that the fatty acid composition of (la oil) can solve the above problems.

[0007] That is, the constitution of the present invention is a cosmetic containing resclere oil and / or its hydrogenated product.

Resclera is planted from October to November and harvested from May to June, the seeds of which contain about 25% to 26% oil. An example of the fatty acid composition that constitutes this resclere oil is as follows. Resquerolic acid 56% oleic acid (including isomers) 14-17% Linoleic acid 7-9% Linoleic acid 9-11% Auricolic acid 3-4% Densipolic acid acid) small amount

Reschloric acid, as shown in Chemical formula 1,
It is a special fatty acid which is a monoenoic acid having 20 carbon atoms and has a hydroxyl group at the 14th position. Further, as shown in Chemical formula 2, auricholic acid is a dienoic acid having 20 carbon atoms and also has a hydroxyl group at the 14-position, and densipolic acid is a monoenoic acid having 18 carbon atoms at the 12-position as shown in Chemical formula 3. It is a fatty acid having a hydroxyl group. Furthermore, rescrelar oil is a vegetable oil having unprecedented properties in terms of its fatty acid composition, such as containing isomers of oleic acid.

[Chemical 1]

[Chemical 2]

[Chemical 3]

Further, an example of the analytical value of rescrelar oil is as follows. Acid value 0.3 Saponification value 173.8 Iodine value 106.4 Hydroxyl value 97.7

The present inventors have examined the application of this rescrelar oil to cosmetics and found that it has properties that conventional vegetable oils do not have.

That is, since the reschloric acid that constitutes more than half of the rescrelar oil is a fatty acid containing a hydroxyl group having 20 carbon atoms, and the hydroxyl group is located in the approximate center of the carbon chain, it is sticky while having an affinity for the skin. Demonstrate the characteristic that there is no. In addition, the emollient property derived from the hydroxyl group is excellent, and the moist feeling given to the skin is far superior to other vegetable oils. Further, the special fatty acid contained in a small amount has a good water-holding property and thus has a property of excellent softness and penetrability to the skin.

Further, the hydrogenated rescler oil has a waxy form and can be applied to stick-shaped products, but in this case as well, the dispersibility of the filler is excellent, so that the feeling of use is very smooth. Exert. Furthermore, resclere oil is very mild and non-toxic, which can be understood from the fact that rescler oil has been attracting attention as a feed-use vegetable oil that has no toxic substances in the dregs.

[0014]

EXAMPLES Next, examples of the present invention will be described. Example 1 (O / W type emulsion) (A) Oil phase Resclera oil 10.00 Stearic acid 2.00 Glyceryl monostearate 3.00 Propylparaben 0.05 Isopropyl myristate 2.00 Cetanol 2.00 (B) Aqueous phase Purified water 74.40 Veegum R 1.50 Triethanolamine 1.00 Glycerin 4.00 Methylparaben 0.05 (C) Fragrance Suitable amount

[0015] Veegum is gradually added to water, stirred until homogeneous and heated to 75 ° C, and the remaining aqueous phase component (B) is added with stirring. Next, the oil phase component (A) heated to 78 ° C. is mixed with the aqueous phase component (B), and after cooling to 50 ° C., the fragrance (C) is added, and the mixture is cooled to 30 ° C. while continuing stirring to obtain an emulsion Obtained. The resulting emulsion gave a dry feel and was completely non-greasy.

Example 2 (W / O type cream) (A) Oil phase Liquid paraffin 23.60 Beeswax 16.00 Hydrogenated lanolin 3.00 Resclera oil 22.00 Propylene glycol monostearate 6.00 Ceresin 5. 00 Propylparaben 0.10 (B) Water phase Purified water 23.00 Borax 1.30 (C) Perfume Suitable amount

The oil phase (A) is heated to 85 ° C., and the water phase (B) is also heated to 85 ° C. separately. The aqueous phase was mixed with the oil phase, thoroughly stirred and cooled to 35 ° C., and then a more homogeneous and stable emulsion was obtained using a colloid mill or a homogenizer. The obtained emulsion had a strong affinity for the skin and gave a moist feeling.

Example 3 (Hand cream) (A) Oil phase Glyceryl monostearate 4.30 Stearic acid 6.80 Isopropyl myristate 4.10 PEG (1500) monoisostearate 5.70 Resclera oil 5.00 Lanolin 1.00 (B) Aqueous phase Propylene glycol 2.40 Purified water 70.60 Methylparaben 0.10

The oil phase (A) and the aqueous phase (B) were separately heated to 70 ° C., and then the aqueous phase was added to the oil phase and cooled with slow stirring to obtain a hand cream. The obtained hand cream was excellent in spreadability and imparted flexibility to the skin.

Example 4 (Hair Dressing Cream) (A) Oil Phase Liquid Lanolin 3.00 Isopropyl Palmitate 15.00 Bead Wax 3.00 Sorbitan Monooleate 2.00 Rescler Oil 25.00 Hydrogenated Rescler Oil 5. 00 Vaseline 6.00 Propylparaben 0.03 (B) Aqueous phase Glycerin 3.00 Sodium borate 0.30 Purified water 37.60 Methylparaben 0.07 (C) Fragrance Suitable amount

The oil phase (A) and the water phase (B) are separately heated to 75 ° C., and then the water phase is added to the oil phase with sufficient stirring,
Furthermore, it cooled to 40 degreeC, continuing stirring, and added the fragrance | flavor (C) and obtained the hair dressing cream. The obtained hair dressing cream gave a refreshing feeling to the hair and imparted luster.

Example 5 (lipstick) Titanium dioxide 4.0 Hydrogenated les clera oil 30.0 Macadamia nut oil 10.0 Bead wax 15.0 Carnauba wax 5.0 Ceresin 5.0 Triglycerol diisostearate 10.0 Liquid paraffin 4.0 Isopropyl myristate 15.0 Eosin 2.0

A lipstick was obtained using the above ingredients as a raw material by a conventional method. The lipstick obtained spreads well and gives moistness to the lips.

[0024]

[Effect] The cosmetic composition of the present invention has affinity for the skin, is not sticky at all, has an excellent emollient property, and has a moist feeling far superior to other vegetable oils. In addition, due to the special fatty acid contained in a small amount, it has a good water-holding property and an excellent flexibility and penetrability to the skin. Furthermore, it can be applied to stick-shaped products, and in this case as well, the dispersibility of the filler is excellent, and the feeling of use is very smooth,
And it is highly safe.

Claims (2)

[Claims] 1. A cosmetic comprising resclere oil and / or a hydrogenated product thereof. 2. Reschloric acid, auricolic acid,
A cosmetic comprising densipolic acid and an isomer of oleic acid.