JPH08325137A - Bathing agent - Google Patents

Abstract

PURPOSE: To obtain a solid-like bathing agent having excellent storage stability and dispersibility into bathing water without generating floating or scum of an inorganic pigment nor climbing of inorganic pigment powder onto a bathing tank wall face, and capable of amusing color tone specific to an inorganic pigment. CONSTITUTION: This bathing agent contains following (a)-(c) components. (a) 5-80wt.% a carbonate (e.g.; sodium carbonate), (b) 0.5-10wt.% water-insoluble inorganic pigment powder (e.g.; titanium oxide) and (c) polyhydric alcohol in an amount of 0.01-1wt. times of the component (b) (e.g.; glycerin). Furthermore, an organic acid in an amount of 0.2-3wt. times of the carbonate is added and carbon dioxide is generated, and a foamable bathing agent is obtained, then especially preferably dispersibility is more improved. Other usual bathing agent component is suitably added and prepared to powder-like, granular-like or made to pellet-like, as necessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid bath agent containing a water-insoluble inorganic pigment, and more specifically, it has good storage stability and dispersibility in hot water, and has no floating or lumps of the inorganic pigment. The present invention relates to a solid bath agent which does not cause the inorganic pigment to crawl onto the wall surface of a bathtub and therefore does not impair the appearance of the bathwater and the bathtub when the bathwater is poured into the bathtub, and which can enjoy the color tone peculiar to the inorganic pigment.

[0002]

2. Description of the Related Art Conventionally, bath salts have been known to be effective against fatigue, stiff shoulders, low back pain, chills, neuralgia, rheumatism, hemorrhoids, heat rash, rashes, roughness, cracks, cracks, eczema and acne. ing. In recent years,
Various bathing agents have been developed and put into practical use, which have improved bath cleaning effects such as skin cleansing effect and warming effect by bathing, moisturizing effect that can improve the above-mentioned effects, and anti-inflammatory effect. Many of these bath agents have improved overall effects such as improved effect due to the blending ingredients, preference for color and fragrance of the bath water when the bath agent is dissolved, and enjoyment of bathing. .

In the research and development of improving the color preference when a bath additive is dissolved in a bath water, a tar-based water-soluble dye or a water-soluble dye extracted from a natural product is used, and when dissolved in the bath water. In addition to the development of bath salts that provide a highly transparent color tone, bath salts that use a water-insoluble inorganic pigment to provide a cloudy color tone with the atmosphere of hot spring water have also been developed.

[0004]

However, there are limits to the water-insoluble inorganic pigments that can be incorporated into bathing agents that give a color tone similar to that of hot spring water. For example, when a bathing agent containing an inorganic pigment and other components, especially a carbonate, is added to the bath water, dispersibility is poor such as floating or lumps on the surface of the bath water at the time of addition. There is a problem that the pigment adheres to the wall surface of the bathtub and causes a phenomenon of crawling up the wall surface. For this reason, there is a big problem that a bathing agent which should give a feeling of relaxation and enjoyment of bathing causes discomfort.

In order to solve these problems, so far,
Attempts have been made to blend an inorganic pigment obtained by coating the surface of an inorganic pigment powder with a bath agent using a substance selected from a surfactant, a water-soluble polymer compound, a saccharide, etc.
9-116223, JP-A-63-57516, JP-A-1-149714, JP-A-2-9811, JP-A-3-240722, JP-A-3-287523, JP-A-3-294220). .

However, when such a coated inorganic pigment is mixed in a bathing agent, occurrence of foaming and stringing phenomenon from the inorganic pigment are recognized, and immediately after the mixing, dispersibility in bath water, etc. However, since problems such as poor dispersibility that are presumed to be caused by aging due to storage still remain, even if the surface of the inorganic pigment is modified by coating treatment, etc., it is not a fundamental problem solution. The reality is that there is none.

[0007]

Under these circumstances, the present inventor has conducted diligent research to solve the above-mentioned problems, and as a result, specified a solid bath agent containing a carbonate and a water-insoluble inorganic pigment powder. By mixing a specific amount of polyhydric alcohol, no occurrence of foaming or stringing phenomenon from the inorganic pigment was observed, and the dispersibility of the inorganic pigment powder in the bath water was poor immediately after mixing the inorganic pigment and during storage. The inventors have found that the floating on the wall surface of the bathtub, the adhesion of lumps, and the phenomenon of the inorganic pigment powder crawling up on the wall surface of the bathtub do not occur, and have completed the present invention.

That is, the present invention provides (a) a carbonate,
(B) Water-insoluble inorganic pigment powder, and 0.01 to 1 times by weight of the water-insoluble inorganic pigment powder (c) glycerin, propylene glycol, butylene glycol,
It is intended to provide a solid bath agent containing one or more polyhydric alcohols selected from dipropylene glycol, polyglycerin, diglycerin, diethylene glycol and triethylene glycol.

Examples of the carbonate (a) used in the present invention include sodium carbonate, sodium hydrogen carbonate, potassium carbonate, magnesium carbonate and calcium carbonate, and one or more of these can be used. The content of these carbonates in the bath agent of the present invention is preferably 5 to 80% by weight (hereinafter simply indicated by%), particularly 30 to 60%.

Water-insoluble inorganic pigment (b) used in the present invention
Although not particularly limited, titanium oxide,
It is preferable to use one kind or two or more kinds selected from zinc oxide, kaolin, talc, mica, titanium mica, magnesium oxide and the like, and it is particularly preferable to use titanium oxide and / or zinc oxide. The blending amount of these inorganic pigments is 0.5 to 10%, especially 1 to 5 in the bath agent of the present invention.
% Is preferable from the viewpoint of obtaining a turbid color tone with an atmosphere of hot spring water. In addition, by using a tar-based water-soluble dye or a water-soluble dye extracted from a natural product in combination, the color tone of the bath water can be varied in various ways so that you can enjoy taking a bath.

The polyhydric alcohol (c) used in the present invention is
One or more selected from glycerin, propylene glycol, butylene glycol, dipropylene glycol, polyglycerin, diglycerin, diethylene glycol and triethylene glycol. Of these, glycerin, propylene glycol and butylene glycol are preferably used in the present invention from the viewpoint of dispersibility in water.

The polyhydric alcohol content is 0.01 to 1 times the weight of the inorganic pigment powder (b), but 0.05 to 0.
It is preferably 5 times by weight from the viewpoint that the content of the liquid component in the bath agent is adjusted to an appropriate amount. That is, since the liquid bath component is too much, the stability of the solid bath salt is not impaired or the appearance is not deteriorated, and the liquid bath component is too small to dissolve the solid bath salt in the bath water. It is preferable from the viewpoint that the effect of the present invention can be obtained without occasional floating or lumps of the inorganic pigment on the wall surface of the bathtub or adhesion of the inorganic pigment powder to the wall surface of the bathtub.

In addition to the above-mentioned components, the bath additive of the present invention may be blended with the components usually added to a bath additive in a timely and optimal manner. For example, weeping, juniper, valerian, kayga, koboku, senkyu, spruce, touki, ginger, carrot, keihi, peony,
Mint leaf, sardine, sardine, saccharum, saccharum, scampi, ginger, swordfish, beetle, juniper, syrup, saffron, sorghum, fennel, chimpi, citrus peel, chamomile, aloe, aget, gents, sage, sage, capsicum, capsicum, sardine. , Herb, mugwort, deer, ginkgo leaves, melissa, rosemary, horse chestnut, sawtooth grass, arnica, etc .;
Natural oils and fats such as nuka oil, rice bran extract, olive oil, soybean oil and almond oil; hydrocarbons such as liquid paraffin and white vaseline; dl-menthol, l-menthol, peppermint oil, jasmine oil, d-camphor, dl-camphor. ,
Essential oils such as cypress oil, orange peel oil, camphor oil, turpentine oil, cinnamon oil, bergamot oil, iris oil, pine oil, levender oil; casein, dextrin, PEG, PVA, CM
Polymeric compounds such as C, PVP, HPC, gum arabic, gelatin, carrageenan, cationized cellulose, cationized guar gum; mirabilite, potassium sulfide, sodium sulfide, calcium oxide, potassium nitrate, sodium nitrate,
Calcium nitrate, iron sulfite, methyl salicylate, sodium thiosulfate, sodium polyphosphate, potassium soap, calcium hydrogen phosphate, sodium salicylate, potassium bromide, potassium chloride, ammonium chloride, aluminum sulfate, potassium aluminum sulfate, sodium aluminum sulfate, Inorganic salts such as ammonium alum, iron sulfate, slaked lime, artificial Callus salt, potassium permanganate, sodium phosphate, sodium hyposulfite, calcium thiosulfate and sodium hydroxide; inorganic acids such as metasilicic acid and anhydrous silicic acid; succinic acid , Adipic acid, malic acid, tartaric acid,
Malonic acid, pyrrolidonecarboxylic acid, phosphoric acid, amino acid,
Organic acids such as ascorbic acid and fumaric acid; yunohana, water-soluble pigment, fragrance, ethanol, stearyl alcohol, egg yolk powder, neutral clay, mica powder, benzalkonium chloride, skim milk powder and the like. The organic acid is 0.2
In the case of blending up to 3 times by weight, carbon dioxide is generated by the reaction with the carbonate (a), a foaming bath agent is obtained, and the dispersibility is further improved, which is particularly preferable.

The solid bathing agent of the present invention can be prepared by mixing the above-mentioned components by a conventional method to give a powder or granules or, if necessary, tableting into a tablet.

[0015]

INDUSTRIAL APPLICABILITY The bathing agent of the present invention has good storage stability and dispersibility in hot water even if a water-insoluble inorganic pigment is added without any coating treatment, and there is no floating or lumps of the inorganic pigment. Since the phenomenon of the inorganic pigment not crawling up on the wall surface of the bathtub does not occur, the appearance of the bathwater and the bathtub is not impaired when it is poured into the bathwater, and the color tone peculiar to the inorganic pigment can be enjoyed.

[0016]

The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

Examples 1 to 7 and Comparative Examples 1 to 4 Bath salts having the compositions shown in Tables 1 and 2 were prepared by the following method, and the bath agents immediately after preparation and after storage at 50 ° C. for 20 days were as follows. The evaluation method was used for evaluation. The results are shown in Tables 1 and 2.

[Preparation method of bathing agent] Powder type bathing agent: Each component is weighed so that the total amount of the bathing agent is 20 kg, and mixed for 10 minutes with a Nauta mixer manufactured by Horikawa Micron Co., to form a light-shielding polybottle. I put 300g. At the time of use, 25 g was weighed and put in a bath.

Granule type bath salt: The total amount of bath salt is 20k
Weigh out each component so that it will be g, mix with a super mixer made by Fukai Seisakusho Co., Ltd. until the powder temperature reaches 45 ° C, take out and take out, make it into granules by an extrusion granulator, and cool it after shading. 300g was put into a plastic bottle having properties. At the time of use, 25 g was weighed and put in a bath.

Tablet type bath salt: The total amount of bath salt is 20k
Each component was weighed so as to be g, mixed for 10 minutes with a Nauta mixer manufactured by Horikawa Micron, and compressed into tablets using a hydraulic tableting machine to obtain tablets of 50 g / tablet. This was put into a moisture-proof film-like container and heat-sealed.
At the time of use, 1 tablet (50 g) was placed in the bath.

[Evaluation method] 150 to 200 liters of 40 ° C. hot water was put in a bath made of stainless steel, and a single amount of bathing agent was added to the bathing water. After stirring, the effervescent tablet type bathing agent was visually evaluated according to the following evaluation criteria after stirring the bath water after the effervescence was completed.

Presence or absence of floating on the surface of the bath water: ◯: No floating. Δ: There is floating. X: The floating is remarkable.

Presence or absence of lumps on the surface of the bath water: ◯: No lumps. Δ: There is lumps. X: Dama is remarkable.

Whether or not the inorganic pigment powder creeps up on the wall surface of the bathtub: ◯: No creeping up at all. Δ: Crawling up. ×: Crawling is remarkable.

[0025]

[Table 1]

[0026]

[Table 2]

From Tables 1 and 2, the solid bathing agent of the present invention is free from the floating of the inorganic pigment and the slump when the bathing agent is added, even immediately after preparation and after storage under severe conditions of 50 ° C. for 20 days. There is no occurrence, good dispersibility in bath water,
Further, since the phenomenon of the inorganic pigment powder crawling up onto the wall surface of the bathtub did not occur, it was confirmed that the bathtub did not feel dirty and the bathtub appearance was good.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hirotaka Sato, 2606 Akabane Kai, Choga, Haga-gun, Tochigi Prefecture, Kao Institute of Stock Companies (72) Hidenori Man, 2606 Akabane, Kai-cho, Haga-gun, Tochigi, Institute of Kao Corporation

Claims (5)

[Claims] 1. A carbonate, (b) a water-insoluble inorganic pigment powder, and 0.01 to 1 times by weight of the water-insoluble inorganic pigment powder (c) glycerin, propylene glycol and butylene. A solid bath salt containing one or more polyhydric alcohols selected from glycol, dipropylene glycol, polyglycerin, diglycerin, diethylene glycol and triethylene glycol. 2. The amount of the carbonate (a) compounded is 5 to 80% by weight.
And the compounding amount of the water-insoluble inorganic pigment powder is 0.5 to 1
The solid bath salt according to claim 1, which is 0% by weight. 3. The solid bath salt according to claim 1, wherein the carbonate (a) is one or more selected from sodium carbonate, sodium hydrogen carbonate, potassium carbonate, magnesium carbonate and calcium carbonate. 4. The water-insoluble inorganic pigment powder (b) is one or more selected from titanium oxide, zinc oxide, kaolin, talc, mica, titanium mica and magnesium oxide. The solid bath salt as described in any one of 1. 5. The solid bath salt according to any one of claims 1 to 4, which further contains an organic acid.