JPH06157291A - Skin cleaning agent containing embryo bud of rice - Google Patents

Abstract

PURPOSE:To obtain a skin cleaning agent capable of preventing oxidation decomposition of rice germ oil in a cleaning agent and effectively extracting characteristic effect of rice germ oil. CONSTITUTION:A weakly acidic N-acyl-L-glutaminate is dissolved in water to give an aqueous medium, in which a rice germ oil is dispersed and dissolved to give a solution. The solution is mixed with a cleaning surfactant such as sodium polyoxyethylene lauryl ether sulfate, humectant, anti-inflammatory agent and disinfectant to give a skin cleaning agent.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a skin cleansing agent containing rice germ oil.

[0002]

2. Description of the Prior Art Detergents containing rice germ oil are generally known.

It is common to incorporate a moisturizing agent, an anti-inflammatory agent, and a bactericide into such a detergent.

[0004]

[Problems to be Solved by the Invention] Rice germ oil is, by nature, a vegetable oil that is extremely susceptible to oxidative decomposition. Even if rice germ oil is simply added to a detergent, rice germ oil is oxidatively decomposed, There was a drawback that it was difficult to obtain the effects peculiar to rice germ oil.

Further, it has been pointed out that the skin having a low degree of exposure has a problem of irritation and inflammation due to a spoilage substance and a decrease in detergency.

Although a cleaning agent containing rice germ oil has been known for a long time, its quality has not been stabilized, and the cause is that enzymatic decomposition of rice bran lipid portion, which is a raw material, rice germ oil extraction conditions and storage conditions. Although it was predicted that it was caused, there are no reports that examined the improvement of its quality.

The present invention has been made for the purpose of providing a rice germ oil-containing detergent which has high detergency, is not irritating or inflammatory, and is highly safe for solving the above-mentioned problems.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the inventors of the present invention investigated a treatment method of a rice germ oil-containing detergent, and found that a mildly acidic (pH 5 to 6.5) N-acyl- It was found that L-glutamate was selected, an appropriate amount of water was added thereto to prepare an aqueous medium, and rice germ oil was dispersed and dissolved in the aqueous medium to improve the quality improving property.
This is due to the antioxidant effect, and the present invention has been completed by discovering that it has a remarkable effect even when compared with the addition of an existing antioxidant.

More specifically, the aqueous medium of the present invention is a weakly acidic (pH 5 to 6.5) N-acyl-L as a cleaning base.
-Glutamate is mixed in a proportion of 3 to 30% and obtained by adding an appropriate amount of water. Dispersing and dissolving the rice germ oil in this solution prevented the oxidative decomposition of the rice germ oil in the detergent, and it was possible to bring out the effect peculiar to the rice germ oil.

In a usual formulation, as a cleaning base, one of N-acyl-L-glutamates or sodium polyoxyethylene lauryl ether sulfate,
A detersive surfactant such as coconut oil fatty acid diethanolamide and coconut oil fatty acid amide propyldimethylaminoacetic acid betaine is used in combination. As a moisturizer, sodium d1-pyrrolidonecarboxylate solution, collagen, DN
A, coconut oil fatty acid hydrolyzed collagen potassium liquid, glycyrrhizic acid and allantoin as anti-inflammatory agents, triclocarban, octopirox, triclosan as bactericides, antistatic agents, thickeners, emulsifiers, pearlizing Agents, preservatives and fragrances are prescribed.

The cleaning agent of the present invention is mainly used for face washing,
Used for hair and body.

[0012]

EXAMPLES The present invention will be described in more detail below with reference to examples.

1) Formulation example Body shampoo Rice germ oil 5% (same as below by weight%) N-coconut oil fatty acid acyl-L-glutamate triethanolamine solution (30%) 10% Polyoxyethylene lauryl ether sodium sulfate 16% Palm Oil fatty acid diethanolamide 5% Toluchlorohydroxydiphenyl ether 0.2% Allantoin 0.1% Dipotassium glycyrrhizinate 0.5% Fragrance Suitable amount 100% Hair cleanser Rice germ oil 1% N-Palm oil Fatty acid acyl-L-Glutamic acid tri Ethanolamine solution (30%) 90% Collagen 1% DNA 1% Piroctone olamine 1% Allantoin 0.5% Dipotassium glycyrrhizinate 0.1% Perfume and trace amount of water 100% Facial cleanser Rice germ oil 5% N-acyl -L- Sodium glutamate 30% Propylene glycol 15 d1- pyrrolidone carboxylate solution 2% trichlorocarbanilide 1% allantoin 0.5% dipotassium glycyrrhizinate 0.1% Perfume trace Water qs Total 100% 2) The following sample rice germ oil stabilized test about 4g petri dish It was spread out, placed in a sealed container of about 4 liters and stored at 50 ° C. for 20 days to evaluate the peroxide value and odor of the sample.

Sample 0 hours 50 ° C after 20 days Odor Peroxide value Odor Peroxide value Body shampoo No offensive odor 0meq / kg No offensive odor 2meq / kg Hair cleanser No offensive odor 0meq / kg No offensive odor 3meq / kg No facial odor 0meq / kg No offensive odor 0meq / kg Comparative example 1 No offensive odor 0meq / kg Acid rancid 18meq / kg Comparative example 2 No offensive odor 0meq / kg Acid rancid 17meq / kg Comparative example 3 No offensive odor 0meq / kg Acid rancid 10meq / kg Comparative example 1: Rice germ Oil only Comparative Example 2: Rice germ oil + antioxidant (tocopherol 0.01
%) Comparative Example 3: Shampoo consisting of rice germ oil 1%, potassium laurate 20%, ethanol 5%, propylene glycol 5%, water 69% 3) Cleaning efficacy test a) Deodorant effect One month with strong dog odor Three beagle adult dogs (body weight: 20 kg ± 1), which were not subjected to the washing treatment, were washed using the body shampoo described in Formulation Example 1 and a shampoo having the same formulation except that rice germ oil was not included. When the tester sniffed the strength of the dog odor every day for 2 weeks after washing, the dog washed with the preparation of the present invention was prevented from generating odor for 3 to 4 days,
Although the odor gradually increased, it was confirmed that the odor was generated from the next day in the formulation containing no rice germ oil.

B) Skin-growing effect Using the beagle adult dogs (body weight 20 kg ± 1) 1 group 3 dogs used in the above-mentioned a), the abdominal hair was shaved after washing, and a depth of 1 cm and length 1 with a scalpel.
Incision over 10 cm and 10 cc of 3% aqueous solution of the cleaning agent of the present invention on the wound
Was washed with a dropper once a day on the wound surface, and the wound healing effect was examined. The control group was treated with a 3% aqueous solution prepared in a formulation containing no rice germ oil, and the wound healing time was measured.

The results showed that the formulation of the present invention required 7 to 10 days for complete recovery of the wound area, whereas the control group showed 13 to 10 days.
It took 17 days, and it was difficult to create a wound condition under individual conditions and under the same conditions, suggesting the possibility of promoting recovery of the wound part although it is incomplete.

C) Anti-inflammatory effect Volunteer men and women with experience of allergic dermatitis 15
The names (ages 22 to 40) were asked to use the face cleansing agents described in the examples, and the feeling of use and the occurrence state of allergic dermatitis were investigated. All respondents answered that the results were good, and no one was found to have allergic dermatitis.

D) Hair loss prevention effect 10 volunteers (ages 25 to 40 years old) were asked to use the hair cleansing agent described in the example once every day for 7 days, the hair loss after washing was collected, and the weight after drying was collected. Was measured.
After a rest period of one month, the same volunteers were used again with the same formula except that rice germ oil was not used, and the hair loss after washing was collected, and the weight after drying was measured and compared. An inhibition rate of about 10% was observed in the formulation containing it.

[0019]

[Formula 1] * Hair loss weight with rice germ oil formulation (B) * Hair loss weight with rice germ oil formulation (A)

[0020]

EFFECTS OF THE INVENTION A detergent containing antioxidant-treated rice germ oil, which is used especially for washing skin and hair. It has deodorizing, skin-growing effects, habits, wounds, and hair loss prevention effects.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuyoshi Takagi, 35, Higashi Sotobori-cho, Higashi-ku, Nagoya City, Sanwa Chemical Research Institute Co., Ltd. Inside the laboratory (72) Inventor Kiichi Sawai 35, Higashi Sotobori-cho, Higashi-ku, Nagoya-shi Sanwa Chemical Research Institute Co., Ltd.

Claims (3)

[Claims] 1. Rice germ oil is dispersed and dissolved in an aqueous medium obtained by dissolving weakly acidic N-acyl-L-glutamate in water, and at least one detersive surfactant is added or not added thereto. A skin cleansing agent containing rice germ oil. 2. A rice germ oil-containing skin cleansing agent obtained by adding one or more of a moisturizing agent, an anti-inflammatory agent and a bactericidal agent to the cleansing agent according to claim 1. 3. The skin cleansing agent containing rice germ oil according to claim 2, wherein the anti-inflammatory agent is selected from allantoin and glycyrrhizin.