JPS62286915A - Dry shampoo agent composition - Google Patents

Abstract

PURPOSE:The titled composition dissolving and removing stains on scalp and on the hair and further assisting healthy function of hair, containing an oil selected from vegetable oil, animal oil and synthetic oil, a volatile oil and a lower alcohol and having a viscosity in a specific range. CONSTITUTION:A dry shampoo agent composition containing one or more oils selected from vegetable oil, animal oil and synthetic oil, a volatile oil (not especially limited, oil having <=6hr volatilization time of 0.1g at 36.5 deg.C measurement temperature and <=30cs viscosity at 5 deg.C, e.g. silicone oil, liquid paraffin oil, etc.) and a lower alcohol (e.g. ethanol, etc.). The whole composition is adjusted to have <=30cs viscosity at 5 deg.C. The blending ratio of the components is 5-60, preferably 10-40wt% oil, 30-80wt%, preferably 40-70wt% volatile oil and 10-80wt%, preferably 15-80wt% lower alcohol based on the total amounts of the composition.

Description

Detailed Description of the Invention - "＼-１＼〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆〆. The present invention also relates to a dry shampoo composition that is easy to use and effective for cleaning hair.

[Prior art]

Conventionally, the hair area has been cited as one of the areas most difficult to keep clean when, for some reason, it is not possible to take a bath for a long period of time.

Generally, hair grows at a rate of 200 hairs per 1M of scalp, and a scalp with dense hair has poor ventilation and tends to become a place where dirt accumulates. Dirt from the outside world mixes with the dead skin cells that are constantly peeled off from the skin's surface, and when bacteria is added to the skin, it irritates the skin, causing unbearable itching. When a wound is created by scratching, #I bacteria can enter the area and cause inflammation and infection. In addition to dandruff, which is common in healthy people, head diseases include eczema, albinism, seborrhea, and alopecia, but many of these can be prevented or alleviated by cleanliness. . Until now, there have been no products that serve as hair washes for people who go to bed, and instead of using aerosol or lotion cleansers, hair products such as hair tonics that are mainly based on alcoholic organic solvents have been used. methods have been taken. In hospitals and other places where a professional nurse is present, hair may be washed, covered with a 9-piece cloth, and washed with regular shampoo. However, currently, the number of bedridden elderly people living at home is increasing, and in most cases, family caregivers are unable to provide full-time care, and hair care, which requires labor, is often overlooked. This can result in mental pain and physical discomfort for the patient, as well as new skin diseases on the head.

Furthermore, there is no product that provides a simple method for washing hair when it is difficult to wash the hair, not only for sick people but also for people traveling, business trips, or women during their menstrual period. The cleanliness of the hair is the most noticeable part of the head, and one of the worst etiquettes for modern people.

Therefore, there is a need for a dry shampoo that can be easily used by anyone regardless of T, P, O, ', has a good affinity for dirt, is easy to remove, and can leave only an appropriate amount of moisturizing ingredients. was.

[Problem 3 to be solved by the invention The head has the largest amount of sebaceous glands per given area of all skin. Since secreted sebum is a semi-liquid oily substance, chemically consisting of fats, fatty acids, etc., it is desirable to use a base that dissolves these substances.

Traditionally, the aerosol type and lotion type cleaning agents used in dry shampoos make hair sticky and wet when used in large quantities, making it difficult to dry the hair with a hair dryer. When wiping, the hair is divided into small sections and cotton is used, but this takes time and effort and does not remove dirt easily. Furthermore, the blended surfactant is
If it remains on the skin, there is a risk of causing irritation and itching.

On the other hand, wiping with a volatile organic bath agent such as alcohol dries quickly, so the affinity time for stains is too short. Therefore, it is relatively effective against oily dirt, but it is not effective at all against scalps where the dry stratum corneum has peeled off or severe dirt such as dandruff cake. There were problems such as

[Means for solving problems]

Under these circumstances, the inventor of the present invention has conducted extensive research to address the above-mentioned problems, and as a result, has developed a dry shampoo that dissolves and removes dirt from the scalp and hair, and furthermore supports the healthy physiology of the hair. 0 who discovered the composition and completed the present invention
That is, the present invention contains one or more types of oils selected from liver consisting of vegetable oils, animal oils, and synthetic oils, volatile oils, and lower alcohols, and has a viscosity of the entire composition at 5°C of 30 cs. This is a dry shampoo composition characterized by the following.

In the present invention, the volatile oil is not particularly limited, but preferably has a volatilization time of 0°lt within 6 hours at a measurement temperature of 36.5°C and a viscosity of 30 cs or less at 5°C. For example, silicone oil , fluid Isono 9 rough-in oil, and the like.

Examples of the lower alcohol include ethanol, insolonoQ-nol, etc.Oils include, for example, avocado oil, almond oil, olive oil, carrot oil, cucumber oil, cucumber oil, sasanqua oil, camellia oil, sunflower oil, Safflower oil, arnica extract, calendula extract, licorice extract, soybean extract,
Vegetable oils such as yokuinin extract and chamomile extract; Animal oils such as mink oil, turtle oil, squalene, squalane, and silistane; Triglycerides such as glycerin tri-2-ethylhexanoate; inzolobil myristate;
Examples include esters such as octyldodecyl myristate and /Q isozolobyl rumitate, and synthetic oils such as liquid no-Q rough in and liquid isonolil rough in.

The dry shampoo composition of the present invention is prepared by mixing the above-mentioned essential components. The blending ratio of these components is 5 to 60% by weight of oil (hereinafter simply referred to as excellent), preferably !0 to 40%, and 30 to 80% of volatile oil.
%, preferably 40-70%, lower alcohol 10-70%
80%, preferably 15-50%.

In addition to the above-mentioned essential ingredients, the dry shampoo composition of the present invention may optionally contain anti-inflammatory agents, vitamins and derivatives thereof, antioxidants, humectants, astringents, antihistamines,
Sulfa drugs, bactericidal agents, fragrances, colorants, etc. can also be blended.

In order for the dry shampoo composition of the present invention to sufficiently reach the roots of dense hair, that is, the scalp,
It is necessary to adjust the viscosity at 30c3 or less. If the viscosity exceeds this range, too much of the product will adhere to the hair, making it difficult to clean the scalp.

[Effect]

In the dry shampoo composition of the present invention, the volatile oil penetrates well into oily dirt and dead skin cells, has the function of softening dirt and dead skin cells, and also blends well with hair and is not sticky. Dirt can be easily removed. Furthermore, when a lower alcohol is combined with this volatile oil, the stain removal effect is increased and a refreshing feeling is imparted. These volatile ingredients evaporate and disappear over time, so they do not irritate the skin at all, but this evaporation can cause excessive dryness of the scalp, so to compensate for this, it acts as a moisturizer. An oil component having the following is blended.

〔effect〕

Apply the dry shampoo composition of the present invention to your hair, let it blend well into your hair, and apply it with your fingers, gauze, or a towel. After combing the scalp with a scalp massager to bring out dirt and dandruff, you can easily and efficiently remove dirt from the hair by brushing with a fine-toothed plan or comb. Can be removed. In addition, the dry shampoo composition of the present invention makes it easier to comb the hair, so it does not damage the hair even when using a fine-toothed brush, and the moisturizing oil keeps the hair supple even after shampooing. It is possible to maintain a good feel. Furthermore, it is possible to prevent or treat infectious diseases or provide a deodorizing effect by adding anti-inflammatory agents, bactericidal agents, etc. The invention is not limited to these Example 1 Octyldodecyl myristate 1 (1
silicone oil] Ethyl alcohol 40j' or more were mixed at room temperature and stirred for 2 hours to obtain a dry shampoo for oily products with a viscosity of 4cs (5°C). As a result of a one-week usage test conducted on five men who were aware of their oily dandruff, the following results were obtained.

How to use 2. Evenly moisten your head 91 with the product, massage with your fingers, and then brush thoroughly with a fine-toothed brush.

Results: Slight effect (dandruff reduced 0) 2 people Example 2 Toray Silicone 5H34450f Ethyl alcohol 3 (1 l) Inpropyl myristate (1 or more were mixed at room temperature and stirred for 2 hours) , viscosity 6
cs (5℃) Dry shampoo for dry skin was obtained.The product of the present invention was used for one week on three men who were aware of dry dandruff.As a result, all three men found it to be effective. (Dandruff stopped appearing. Itching stopped. Moisture improved.)

Comparative Example 1 Toray Silicone 5H344509 IP Solvent 20t Ethanol 309 or higher were mixed at room temperature and stirred for 2 hours to reduce the viscosity to 2.
A dry shank agent of cs (5°C) was obtained. This comparison product was used for one week on five men who were aware of dry and oily dandruff, and the following results were obtained.

(5 people with greasy dandruff) Slightly dry 3 people felt it was too dry 2 people (5 people with dry dandruff) 5 people felt bad because it was too dry Comparative Example 2 Toray Silicone 5) 1344 50r
IPnluvent 3(1)Q
Isoflovir lumitate 20? By mixing the above at room temperature and stirring for 2 hours,
A dry shampoo with a viscosity of 7cs (5°C) was obtained. This comparison product was used in a -week test on five men who were aware of dry and oily dandruff, and the following results were obtained.

(5 people with greasy dandruff) Sticky 2 people 3 people had itching (5 people with dry dandruff) It felt good, but it was itchy for 2 people. Bad touch 3 people that's all

Claims (1)

[Claims] 1. The composition contains one or more oils selected from the group consisting of vegetable oils, animal oils, and synthetic oils, a volatile oil, and a lower alcohol, and the viscosity of the entire composition at 5°C is 30cs
A dry shampoo composition characterized by the following: 2. The dry shampoo composition according to claim 1, wherein the volatile oil is silicone oil and/or liquid isoparaffin having a viscosity of 30 cs or less at 5°C.