JP3476620B2 - Bath composition - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a bath agent composition which has a mild effect on the skin (does not cause skin bulkiness and further suppresses itching of the skin), has a moisturizing effect and a heat retaining effect, and has a good feeling in use. Regarding things.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
The bath agent composition is a powder type bath agent obtained by mixing various humectants, fluidizing agents, solubilizing agents, pigments, fragrances, etc. with an inorganic salt such as sodium sulfate and sodium hydrogencarbonate as a main ingredient, spruce oil, vegetable oil, etc. There are liquid type bath agents in which an oily component is mixed with a solubilizer, a pigment, a fragrance, etc., bath agents in which ground pulverized products are put in a nonwoven fabric and put in the bath as they are, and bubble bath type bath agents having a cleaning action. But,
These bath compositions have a mild effect on the skin (the skin does not become bulky and further suppress itching of the skin), and those satisfying all the points of moisturizing effect, heat retaining effect, feeling of use, etc. Absent.

Particularly, in recent years, the number of patients with atopic dermatitis has increased, and there has been a strong demand for a bath agent which prevents the skin from becoming bulky after bathing and which suppresses itching of the skin.

[0004] It is generally said that when the above bath agent is added to the hot water without the bath agent, the action on the skin is alleviated. However, people with diseases such as atopic dermatitis, senile pruritus, and xeroderma suffer from bulky skin due to bathing, which increases the itching of the skin when the body warms and the skin temperature rises. To that end, people with these disorders are often restricted in using bath salts,
The effect on the skin is mild (the skin does not get dry and the itching of the skin is suppressed), the moisturizing effect (the skin is smooth and smooth), the heat retaining effect, and the excellent feeling (fresh feeling).
It is desired to develop a bath agent having

That is, the present invention has a mild action on the skin (the skin does not become bulky and further suppresses itching of the skin), has a moisturizing effect and a heat retaining effect, and has a good feeling in use. The purpose is to provide.

[0006]

The inventors of the present invention have conducted extensive studies in view of the above-mentioned various circumstances, and as a result, the following bath agent composition has a mild effect on the skin (without the skin becoming bulky. Further, it has been found that the composition of the present invention has a moisturizing effect, a heat retaining effect, a moisturizing effect and an excellent feeling in use, and has completed the present invention.

A first aspect of the present invention for achieving the above object is a bath agent composition containing a bamboo salt.

According to claim 2 of the present invention, Zn is contained in bamboo salt.
The bath agent composition according to claim 1, wherein a bamboo salt containing 0.0005 to 0.05% by weight of ions and 0.0005 to 0.05% by weight of Mn ions is blended.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION As the bamboo salt used in the present invention, one kind or two or more kinds of rock salt, sun salt, fine salt, seawater dried product, mineral spring water dried product, etc. are appropriately selected, and bamboo salt (3 years Stuffed in a suitable manner), and stuff it in the mountains with no fertilizing loess (9 times on a fine sieve, dry in the shade, knead tightly), preferably about 1 cm using red leaf powder, wormwood, bamboo leaves After stuffing, keep it about 2 cm at the end. Pine wood is laid in a ceramic pot made of loess, sprinkled with pine and then baked (temperature inside the pot is 1,00).
0 ° C or higher). After 24 hours, it is taken out (at this time only the pillars of salt remain) and ground. After crushing, it is put in a new bamboo tube by the same method as the beginning, and this is repeated 2 to 9 times to obtain the bamboo salt of the present invention.

In order to obtain the bamboo salt of the present invention, preferably 2 to
Although the baking process is performed 9 times, 3 to 6 times are particularly preferable, and 2
If it is less than 10 times, the amount of active ingredients such as Zn ion and Mn ion in bamboo salt may be insufficient, and if it exceeds 9 times or more, the effect commensurate with the number of baking is not obtained and the stability of the dosage form Also, the manufacturing cost of bamboo salt tends to increase due to the influence of the above and the manufacturing process of bamboo salt becomes complicated.

The average particle diameter of bamboo salt is 0.01 to 10
mm particles are preferred, more preferably 0.1-5 mm
Is. If it is less than 0.01 mm, in the case of a powder-type bath agent, the handleability during production of the bath agent composition and the fluidity of the obtained bath agent composition are poor, and if it exceeds 10 mm, there is a feeling of discomfort during bathing. Defects such as difficulty in dissolving in a bath may occur.

The bamboo salt used in the present invention contains 0.0005 to 0.05% by weight of Zn ions and M
It is preferable to use a bamboo salt containing 0.0005 to 0.05% by weight of n ion in order to achieve the object of the present invention.

When the amount of Zn ion in the component of the bamboo salt defined in the present invention is less than 0.0005% by weight, the action on the skin may not be alleviated (the skin becomes bulky and the itching of the skin is further increased). Even if it exceeds 0.05% by weight, the effect commensurate with the content is not obtained and the stability of the dosage form is affected. If the Mn ion content is less than 0.0005% by weight,
The effect on the skin may not be alleviated (skin becomes bulky, and itching of the skin is further increased), and even if it exceeds 0.05% by weight, the effect corresponding to the content is not obtained and the stability of the dosage form is also improved. May have an impact. In addition, as a quantitative analysis method of Zn ion and Mn ion in bamboo salt, an atomic absorption analysis method, an ion chromatography analysis method, an IPC emission analysis method, or the like is performed.

As the bath agent composition of the present invention, a powder type bath agent is most suitable, but a bath agent of a type in which a powder type bath agent and a pulverized plant product are mixed and put into a non-woven fabric and placed in a bath as it is may be used. The amount of bamboo salt to be added to the bath agent composition can be appropriately selected according to the actual application type, but is, for example, as follows.

There is no particular upper limit or lower limit of the amount of the bamboo salt used in the bath agent composition of the present invention, but 5 to 80% by weight based on the total amount of the bath agent composition is taken into consideration in view of cost and practicality. 20% to 60% by weight is the most desirable.

The other components that can be blended in the bath agent composition of the present invention are not limited as long as they are substances generally used in bath additives, and can be appropriately selected from the following substances according to the efficacy and effect.

1) Inorganic salts Sodium sulfate, sodium carbonate, sodium hydrogen carbonate, sodium chloride, potassium chloride, sodium sesquicarbonate, alum, dried seawater, calcium chloride, magnesium chloride, magnesium sulfate, sodium sulfide, potassium sulfide, calcium nitrate , Ammonium sulfate, sodium thiosulfate, calcium hydrogen phosphate, calcium thiosulfate etc.

2) Inorganic acids Silicic anhydride, metasilicic acid, boric acid, etc.

3) Organic acids Benzoic acid, citric acid, fumaric acid, tartaric acid, malic acid, salicylic acid, etc.

4) Oils and fats Olive oil, soybean oil, almond oil, castor oil, coconut oil, palm oil, rice bran oil, avocado oil, macadamia oil,
Mink oil, jojoba oil, liquid paraffin, white vaseline, etc.

5) Adhesives Carboxymethyl cellulose sodium, methyl cellulose, ethyl cellulose, casein, pectin, starch, sodium alginate, polyvinyl alcohol, polyvinylpyrrolidone, locust bean gum, carragee
Nan, agar, carbopol, etc.

5) Polyhydric alcohols Glycerin, propylene glycol, sorbitol, polyethylene glycol, 1,3-butylene glycol and the like.

6) Plants, herbal medicine powders and extracts Collagen, silk, seaweed, mugwort, sardine, peach monoha, aloe, yuzu, chinpi, licorice, spruce, spruce, carrot, ginseng, safflower, rose, Rosemary, chamomile, green tea, oolong tea, black tea, yanlong tea, sweet tea,
Ground products such as burdock, bai, mint, guava, wolfberry, dokudami, elderberry, wolfberry, ukogi, lavender and the like, and extracts thereof.

In addition to the above substances, the bath agent composition of the present invention may optionally contain other ingredients such as moisturizers, fragrances, pigments, bactericides, anti-inflammatory agents such as glycyritin and its derivatives. , Vitamins such as vitamin C and vitamin E, a main agent used in pharmaceuticals and quasi drugs, a surfactant, a fluidizing agent and the like can be appropriately mixed.

The bath agent composition of the present invention can be obtained by mixing bamboo salt with, for example, the above-mentioned inorganic salts and the like, and uniformly stirring and mixing them.

[0026]

The present invention will be described in more detail with reference to examples. The evaluation of the effect was carried out by the following test method.

(Practical test: smoothness of skin, feeling of use, etc.)
20 girls (professional panelists) used the bath composition continuously for 1 week, and the skin smoothness (smoothness), heat retention,
The feeling of use (there was no sliminess and a refreshing feeling) was evaluated according to the following evaluation criteria. Evaluation symbol Evaluation criteria ◎ ─── When the number of people who answered good is 18 or more ○ ─── When the number of people who answered good is 14 to 17 △ ─── The number of people who answered good is 8 to 13 Case X ─── When the number of people who answered good is 7 or less

(Practical test: improvement of skin bulkiness and itchiness of the skin) 20 women (patients with atopic dermatitis and specific panelists who feel itchiness on the skin) gave 1 of the bath composition.
After continuous use for a week, the following evaluation criteria were used to evaluate the bulkiness and itching of the skin after continuous use. Evaluation Code Evaluation Criteria ◎ ── 18 or more people answered that itching of the skin or skin roughness was reduced ○ ── 14 to 17 people answered that itching of the skin or skin roughness was reduced Case △ ── 8 to 13 people answered that itching of the skin and skin roughness was reduced × ── 7 people or less answered that itching of the skin and skin roughness were reduced

Examples 1 to 4 and Comparative Examples 1 to 4 Table 1 shows the formulation and evaluation results of bath agent compositions prepared by a conventional method. The bamboo salt used in the examples was obtained by the following method. Sun bamboo salt was firmly packed in bamboo shoots, and it was packed with red leaf powder, wormwood, and bamboo leaves for about 1 cm, and then the ends were sealed with loess for about 2 cm.
Then, the powder obtained by baking at 1200 ° C. by the above method was used. As is clear from Table 1, Example 1 of the present invention
As compared with Comparative Examples 1 to 4, skin smoothness (smoothness), feeling of use (no slimy feel, refreshing feeling), and mild action on the skin (skin does not become dry, and It was excellent in terms of the effect of suppressing itching on the skin) and the heat retaining effect.

[0030]

[Table 1]

Example 5 A bath agent composition containing the components of the present invention shown in Table 2 below was prepared by a usual method and evaluated by the above method. All items were excellent evaluations, as in Examples 1 to 4.

[0032]

[Table 2]

[0033]

EFFECTS OF THE INVENTION As described above, the present invention has a mild effect on the skin (the effect that the skin is not bulky and the itching of the skin is suppressed), and the moisturizing effect (the skin is smooth,
It is clear that it provides a bath agent composition having a smooth feeling), a heat retaining effect, and an excellent feeling of use (no slimy feeling, refreshing feeling).

Continuation of front page (51) Int.Cl. ⁷ Identification symbol FI A61P 17/04 A61P 17/04 17/16 17/16 (72) Inventor Takataro Hasunuma 62 62 Takematsu, Minamiashigara City, Kanagawa Prefecture (72) Inventor Hidenori Hanaoka 38-6 Hanamizudai, Hiratsuka-shi, Kanagawa (56) References JP-A-7-285847 (JP, A) JP-A-7-76510 (JP, A) (58) Fields investigated (Int.Cl . ⁷ , DB name) A61K 7/00

Claims (2)

(57) [Claims] 1. A bath agent composition containing a bamboo salt. 2. A bath agent composition according to claim 1, wherein a bamboo salt containing 0.0005 to 0.05% by weight of Zn ions and 0.0005 to 0.05% by weight of Mn ions is blended. object.