JP2785080B2 - Bath composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath composition, and more particularly to a powder, tablet, sheet or liquid bath composition, which is easily emulsified and dispersed to give a milky white color when put into bath water. It is about.

[0002]

2. Description of the Related Art There are a wide variety of types of bath preparations, representative of which are inorganic salt baths, foaming baths, medicinal plant baths, bubble baths, bath oils, milk baths, enzyme baths. And the like. In addition, recently, a bath agent having a novel sensation that gives a sense of quality, a feeling of hot spring, and fun by dispersing a white inorganic pigment is known.

[0003]

However, in the bath preparation using the above-mentioned inorganic pigment, the inorganic pigment damages the wall surface of the bathtub or adheres to the drain port or the inner wall surface of the bathtub to deposit. There was a drawback of damaging. In addition, since the inorganic pigment itself is heavy, it settles in bath water, and the turbidity tends to decrease with time. On the other hand, although milk baths have been known for their skin care effects such as moisturizing the skin, they have not been used in practice because of problems such as storage stability and the need for a certain amount of addition.

The object of the present invention is to eliminate the above-mentioned disadvantages,
When poured into bath water, it quickly emulsifies and disperses and becomes cloudy, and has excellent emulsification stability. By making the bath water cloudy, it has the mental effect of giving a sense of quality, hot spring mood, and fun, and furthermore, skin An object of the present invention is to provide a bath agent having a skin care effect such as firmness.

[0005]

That is, the present invention provides a dextrin or / and lactose, a water-soluble caseinate,
Containing an oil whose main component is a liquid ester at room temperature,
The weight ratio of the water-soluble caseinate to the oil is 1:10
3: 1 der is, a bath composition characterized by being obtained by high-pressure emulsification treatment.

The dextrin used in the present invention is obtained by partially hydrolyzing starch, and is not particularly limited in origin and molecular weight, but shows water solubility and has an adverse effect on usability and storage stability. A glucose equivalent having a hygroscopicity of 2 to 40 which does not give moisture is preferable.

[0007] The lactose used in the present invention is generally derived from mammalian milk, but is not limited thereto.

The water-soluble caseinate used in the present invention comprises:
Generally, it is obtained by adding alkali to casein, which is a main component of milk of mammals. Examples of the alkali include sodium hydroxide and potassium hydroxide, but are not particularly limited thereto. Calcium salts do not show water solubility and are not suitable. The amount of the water-soluble caseinate is 3-30.
% By weight is preferred.

The ester which is liquid at normal temperature used in the present invention
Oil mainly containing typically may be a raw material used in the bath agent and cosmetics, for example, myristic acid isopropyl myristate isopalmityl, glyceryl trioctanoate, tri (caprylic Capri glycerol, neopentyl glycol dioctanoate ester, diisostearyl malate, synthetic ester oils cetyl octanoate, etc., soybean oil, rapeseed oil, olive oil, vegetable oil and jojoba oil, turtle oil, animal fats mink oil and the like Ageraru. the present invention
Now, these esters are the main components, and liquid paraffin
And squalane , silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane
May be added as needed . The amount of the oil component mainly composed of a liquid ester at room temperature is preferably 10 to 60% by weight.

In the present invention, the ratio of the water-soluble caseinate to the oil that is liquid at room temperature is 1:10 to 3: 1. When the ratio of the oil component that is liquid at room temperature to the water-soluble caseinate exceeds 10, emulsification becomes unstable, and the oil component floats when it is put into bath water. On the other hand, if the ratio of the water-soluble caseinate to the oil that is liquid at normal temperature is less than 3, the turbidity is insufficient, and when the dosage form is powder, it tends to become mamaco when poured into bath water.

The bath preparation of the present invention may also contain other ingredients usually used in bath preparations and cosmetics. For example, crude drug extracts such as aloe and chamomile, lanolin, lanolin alcohol, cholesteryl hydroxystearate, A hydrated ester such as dipentaerythritol fatty acid ester, hyaluronic acid and the like can be blended, but it is not limited to these.

[0012]

【Example】

Examples 1 to 10 and Comparative Examples 1 to 3 [Production of Bath Agents] Bath agents of Examples and Comparative Examples were prepared according to the formulations shown in Table 1. That is, dextrin or lactose was dissolved by heating twice the amount of water of the entire formulation to 60 ° C., and the solution was further heated to 80 ° C. to dissolve sodium caseinate. Next, a liquid oil heated and mixed at 80 ° C. was added to the solution, emulsified at 6000 rpm for 10 minutes using a homomixer, and further emulsified at a pressure of 100 kg / m ² using a high-pressure homogenizer. The emulsion was spray-dried at 120 ° C. to obtain respective sample powders.

[0013]

[Table 1]

[Evaluation of emulsified state]
Put 100 liters of the sample (Examples 1-10, Comparative Examples 1
10 g of 3) was added, the mixture was lightly stirred by hand, and then visually observed, and the state at that time was evaluated according to the following criteria. Table 2 shows the average score of the evaluation results.・ Dispersibility Disperses promptly 1 point Difficult to disperse 2 Does not disperse 3 ・ Emulsification stability No oil floating 1 point Some oil floating 2 Very oil floating 3 ・ High turbidity 1 point Normal 2 Low 3

[0015]

[Table 2]

[Evaluation of Usability] Hot water at 40.degree.
Add 0 liter, add 30 g of sample (Example 1),
After lightly stirring by hand, evaluation was performed by 20 panelists according to the following criteria.・ The hot water is very soft 5 points Very soft 4 Soft 3 Somewhat soft 2 Same as Sarah 1 1 ・ Moist feeling Very moist 5 points Very moist 4 Moist 3 Moist 2 Not moist 1 ・ Warming effect very It is difficult to cool the water 5 points It is very difficult to cool the water 4 It is difficult to cool the water 3 It is slightly hard to cool the water 2 Same as Sarah water 1

[0017]

[Table 3]

Example 11 (1) Isopropyl myristate 20.0% by weight (2) Glycerin tri (caprylate / caprylate) 10.0 (3) Avogado oil 5.0 (4) Mink oil 2.0 (5) Cholesteryl hydroxystearate 2.0 (6) Vitamin E 1.0 (7) Fragrance 3.0 (8) Sodium caseinate 10.0 (9) Dextrin 45.0 (10) Cyclodextrin 2.0

Heating twice the amount of water of the whole formulation to 60 ° C. to dissolve (9) and (10),
Heated to ° C. to dissolve (8). Next, an oil solution obtained by heating and mixing (1) to (7) at 80 ° C. was added to the solution,
The mixture was emulsified at 6000 rpm for 10 minutes using a homomixer, and then 100 kg / m2 using a high-pressure homogenizer.
Emulsified at a pressure of ² . The emulsion was spray-dried at 120 ° C., and the resulting powder was tableted to obtain a tablet bath composition.

Example 12 (1) Liquid paraffin 3.0% by weight (2) Glyceryl trioctanoate 15.0 (3) Squalane 1.0 (4) Fragrance 2.0 (5) Sodium hyaluronate 0.1 (6) ) Aloe extract 0.2 (7) Chamomile extract 0.2 (8) Sodium caseinate 6.0 (9) Dextrin 25.0 (10) Water 47.5

(10) is heated to 60 ° C.
(7) and (9) were dissolved, and the solution was further heated to 80 ° C. to dissolve (8). Next, (1)-
An oil solution obtained by heating and mixing (4) at 80 ° C. was added, and the mixture was emulsified at 6000 rpm using a homomixer for 10 minutes, and further emulsified using a high-pressure homogenizer at a pressure of 100 kg / m ² . The emulsion was allowed to cool to room temperature to obtain a liquid bath composition.

[0022]

EFFECT OF THE INVENTION The bath composition of the present invention can be applied to a bathtub without damaging a bathtub, a drain port, a bath pot like an inorganic pigment, or sinking in the bathwater to reduce the turbidity over time. By having cloudiness, it has a mental effect such as giving a sense of quality, a feeling of hot spring, and fun, and has a skin care effect such as moisturizing the skin. If a crude drug, a humectant, an inorganic salt or the like is blended, a further effect is exhibited. From the viewpoint of storage stability, it is more preferable that the dosage form is a powder, tablet, or sheet.

Claims (2)

(57) [Claims] A dextrin or / and lactose, a water-soluble caseinate, and an ester which is liquid at room temperature .
Contains an oil that, heavy between the oil and the water-soluble caseinate
The amount ratio of 1: 10-3: 1 der is, subjected to high-pressure emulsification treatment
A bath composition characterized by being obtained by: 2. The bath composition according to claim 1, wherein the content of the water-soluble caseinate is 3 to 30% by weight, and the content of an oil mainly composed of an ester which is liquid at room temperature is 10 to 60% by weight.