JP3249672B2 - Foaming bath agent - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foaming bath agent, and more particularly, it has a good foaming property and does not cause inorganic pigments to float on the surface of the bath water or oil when it is put into a bathtub. It relates to a foaming bath agent.

[0002]

2. Description of the Related Art Conventionally, bathing agents have been provided as products for the purpose of enhancing the bathing effect upon bathing. Until now, there has been no custom of hot water supply and drainage for each bath in Japan, so the main component is a mixture of inorganic salts such as sodium sulfate, sodium chloride, and alkali carbonate, which are generally known as hot spring ingredients. So-called bath salts, in which auxiliary agents such as essential oils, fragrances, humectants, and vitamins are blended, have been the mainstream. On the other hand, in recent years, a bath salt which mixes an alkaline bicarbonate and an organic acid such as citric acid as foaming components and dissolves while foaming when put into a bath to give the user a sense of exhilaration and refreshment has been developed. In addition, bath agents containing a white pigment such as titanium oxide and zinc white and a colored inorganic pigment such as red iron oxide to impart a milk bath-like turbidity or a unique color tone similar to a hot spring are also found. However, when an inorganic pigment is blended in the following foaming bath agent, if an untreated inorganic pigment is blended, the inorganic pigment powder will aggregate and precipitate at the bottom of the bathtub or strongly adhere to the bathtub wall or body. There are drawbacks such as discomfort to the user and difficulty in cleaning the bathtub.

[0003] Techniques for improving such disadvantages include:
A fine powder of titanium dioxide or zinc white kneaded with a hydrophilic surfactant (Japanese Patent Application Laid-Open No. 49-116223), a compound containing a mixture of a surfactant and a white fine powder (Japanese Patent Application Laid-Open No. 1-149714). ), A composition containing titanium oxide whose surface is coated with a surfactant having a specific HLB (Japanese Patent Application Laid-Open No. 2-9811), and a composition containing an inorganic pigment surface-treated with a specific higher fatty acid alkali metal salt (Japanese Patent Application Laid-open No. Japanese Patent Application Laid-open No. Hei 3-287523), a composition containing an inorganic pigment coated with a specific amino acid-based surfactant (Japanese Unexamined Patent Publication No. 3-2).
No. 40722), a coating of the surface of an inorganic pigment with a nonionic surfactant of a specific HLB and a fatty acid soap (Japanese Unexamined Patent Publication No.
(JP-A-294220), surface treatment with a surfactant, etc. to improve dispersibility, and use of titanium oxide and an acyl amino acid salt as a clouding agent and sodium carbonate to improve the dispersion stability (JP-A-Hei. 4-9326
Publication) and the like.

[0004]

However, carbonates and / or
Or, in a foaming bath agent containing an alkali hydrogen carbonate and an organic acid and an oil component and an inorganic pigment, when the inorganic pigment is coated with a surfactant, the dispersibility of the inorganic pigment is improved. A part of the inorganic pigment is easily floated on the surface of the bath water together with the foam, which causes a problem of giving the user discomfort. Furthermore, since the floating inorganic pigment adheres firmly to the bathtub, a large amount of labor is required for cleaning the bathtub, which is not preferable.

In view of the above drawbacks, the present invention provides good foaming properties in which the inorganic pigment does not float on the surface of the bath water and the inorganic pigment does not adhere to the bath, and the inorganic pigment has excellent dispersibility in the bath water. It is an object to provide a suitable bath agent.

[0006]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, when an oil component is mixed with a specific nonionic surfactant, and this is coated on the surface of the inorganic pigment, It has been found that the inorganic pigment does not float and the dispersibility is not impaired when it is poured into bath water and foamed and dissolved, and the present invention has been completed based on this.

That is, the present invention relates to a foaming bath agent containing a carbonate and / or a hydrogen carbonate and an organic acid, wherein the nonionic interface is represented by any one of the following general formulas (1) to (5): The present invention relates to a foaming bath agent comprising 1 to 10% by weight of an inorganic pigment coated with a mixture of at least one activator and an oil component.

Hereinafter, the present invention will be described in detail.

The inorganic pigment used in the present invention includes titanium oxide, zinc oxide, calcium carbonate, magnesium carbonate, talc, kaolin, barium sulfate, red iron oxide, yellow iron oxide, ultramarine, navy blue and the like. Although there is no particular limitation on the particle size, it is preferable that the particle size is such that it does not feel rough when touched by hand. Specifically 1
It is preferable that the particle diameter is not more than μm, and if it is larger than this, it is somewhat difficult to prevent sedimentation when the bath water is charged.

[0010] The above-mentioned inorganic pigments can be suitably used as long as they are used in ordinary bath agents and cosmetics.

The nonionic surfactant applied to the present invention is a surfactant represented by the following general composition formulas (1) to (5), for example, (POE) (POP) block polymerization type surfactant ( Asahi Denka Pluronic series, Nippon Yushi Pronon series), (POE) (POP) alkyl ether surfactants, glycerin fatty acid monoester, glycerin fatty acid diester, polyglycerin fatty acid monoester, and polyglycerin fatty acid diester can be suitably used.

[0012]

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When an ionic surfactant such as a fatty acid soap is mixed with an oil component and coated on an inorganic pigment, the effect of preventing the inorganic pigment from floating is poor, and a polyoxyethylene adduct of a higher alcohol or a polyoxyethylene higher fatty acid is used. Ethylene adduct,
Nonionic surfactants such as polyoxyethylene sorbitan have some effect of preventing inorganic pigments from floating, but their effects are not sufficient as compared with the specific surfactants represented by the general composition formulas (1) to (5). .

The oil component mixed with these specific nonionic surfactants refers to fats and oils components, perfume oil components, oily vitamins and the like which are blended in ordinary bath preparations, such as olive oil,
Soybean oil, jojoba oil, palm oil, avocado oil, mink oil,
Turtle oil, lanolin, liquid lanolin, squalane, squalene, animal and vegetable oils such as beef tallow, vitamins such as tocopherol, tocopherol acetate, vitamin A palmitate, silicone oil, liquid paraffin, vaseline, paraffin and other mineral oils, lavender oil, hiba oil, Cinnamon oil, eucalyptus oil, lemon oil, sage oil, rose oil, tomato oil,
Essential oils such as peppermint oil and flavors are exemplified.

[0015] The mixing ratio of these specific nonionic surfactant and oil component is 25% by weight, and the mixing ratio of the nonionic surfactant is 25 to 80% by weight.
%. If the amount of the surfactant is larger or smaller than this, the effect of preventing floating when the bath water is supplied is not sufficient, and the effect of the invention is impaired.

As a method of coating the mixture of the surfactant and the oil component on the inorganic pigment, for example, the mixture of the surfactant and the oil component is kneaded with the inorganic pigment using a three-stage roll or the like, or the mixture of the surfactant and the oil component is mixed. It can also be produced by a method in which an inorganic pigment is put into a liquid in which both components are dissolved in a volatile solvent that dissolves the above, and the mixture is stirred, and then the solvent is evaporated and evaporated.

The amount of the surfactant and the oil content coated on the surface of the inorganic pigment varies depending on the type, average particle size, specific surface area, etc. of the inorganic pigment. It is desirable to coat so that the amount is 1 to 20% by weight.

When the total amount of oils and surfactants to be added to the bathing agent exceeds the preferred coating amount of the inorganic pigment, the remaining oils and surfactants may be separately added to the foaming bathing agent. When the amount of the remaining oil is large, it is more preferable to manufacture by coating a part of the surface active agent and other powder components in the bath agent since the separation and floating of the oil can be prevented.

The inorganic pigment coated with the surfactant and the oil component is blended in the foaming bath agent in an amount of 1% to 10% by weight. 1
If it is less than 10% by weight, the turbidity of the bath water is insufficient, and if it exceeds 10% by weight, it is difficult to prevent the sedimentation of the inorganic pigment.

The foaming bath agent of the present invention includes other components usually used in bathing agents, such as antioxidants, sequestering agents, water, alcohols, preservatives, surfactants, organic powders,
Inorganic powder and the like can be appropriately compounded as needed within a range not to impair the effects of the present invention.

[0021]

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

Embodiment 1 FIG. (Prescription)% by weight 1. 1. Titanium oxide (Taipek CR-50) 6.0 Perfume 1.0 3. Tocopherol acetate 0.05 4. 4. POE (3) POP (17) 1.0 (Pluronic L31, manufactured by Asahi Denka) Sodium bicarbonate 25.0 6. 6. Sodium carbonate balance 7. succinic acid 45.0 Touki dried extract 0.59. Pigment trace amount (Production method) Components 2 to 4 were mixed, and half of the mixture and titanium oxide were kneaded with a disper to obtain titanium oxide coated with a mixture of an oil component and a surfactant. The remainder of the mixture of 2 to 4 and the components of 5 to 9 were separately added and kneaded, and then titanium oxide coated with a mixture of an oil and a surfactant was mixed to prepare a bath agent.

Embodiment 2 FIG. (Prescription)% by weight 1. 1. Titanium oxide (Taipek A-100) 8.0 Perfume 1.0 3. Turtle oil 0.2 3. POE (1) POP (8) Cetyl ether 1.0 (Nikkor PBC-41, Nippon Surfactant Industries) Sodium bicarbonate 25.0 5. Sodium carbonate balance 6. 6. Succinic acid 45.0 Touki dried extract 0.58. Pigment trace (Production method) POE (1) POP in fragrance and turtle oil
(8) A half amount of the cetyl ether surfactant was mixed with titanium oxide, and kneaded with a three-stage roll to obtain a titanium oxide coated with a mixture of an oil component and a surfactant. Separate POE (1)
The remaining half of the POP (8) cetyl ether surfactant and 4 to 8 components were added and kneaded, and then titanium oxide coated with a mixture of oil and surfactant was mixed to prepare a bath agent.

Embodiment 3 FIG. (Prescription)% by weight 1. 1. Titanium oxide (Taipek A-100) 5.0 Vitamin E 0.05 3. Jojoba oil 0.15 4. Perfume 1.05. POE (34) POP (23) 1.0 Stearyl ether (UNICEF 34S23, NOF) 6. Sodium bicarbonate 25.0 7. 7. Sodium carbonate balance 8. Succinic acid 45.0 Touki dried extract 0.510. Pigment trace amount (Production method) 2 to 5 components were mixed, and one third of the mixture was dissolved in ethanol to obtain a 20% solution. Titanium oxide was added to this ethanol solution, and ethanol was removed in a rotary evaporator to obtain titanium oxide coated with a mixture of an oil component and a surfactant. Separately 2-5
After adding and kneading the remaining amount of the mixture of the components and the components of 6 to 10, the titanium oxide coated with the mixture of the oil and the surfactant was mixed to prepare a bath agent.

Embodiment 4 FIG. (Prescription)% by weight 1. 1. Zinc oxide (Zinc flower No. 1) 10.0 Vitamin E 0.05 3. Liquid lanolin 0.15 4. Perfume 1.05. Diglycerin monooleate 0.8 (Nikkor DGMO-C, Nippon Surfactant Industries) 6. Sodium bicarbonate 25.0 7. 7. Sodium carbonate balance 8. Succinic acid 45.0 Touki dried extract 0.510. Pigment trace amount (Production method) Components 2 to 5 were mixed and dissolved in ethanol to obtain a 20% solution. Zinc oxide was added to the ethanol solution, and ethanol was removed in a rotary evaporator to obtain zinc oxide coated with a mixture of an oil and a surfactant. After separately adding and kneading 6 to 10 components, zinc oxide coated with a mixture of oil and surfactant was mixed to prepare a bath agent.

Embodiment 5 FIG. (Prescription)% by weight 1. 1. Titanium oxide (Taipec CR-50) 5.0 Vitamin A palmitate 0.02 3. Olive oil 0.18 4. Perfume 1.05. 5. Decaglycerin monooleate 0.8 (Nikkor decagrin 1-O, Nippon Surfactant Industries) Sodium bicarbonate 25.0 7. 7. Sodium carbonate balance 8. Succinic acid 45.0 Touki dried extract 0.510. Pigment trace amount (Production method) 2 to 5 components were mixed, and one third of the mixture was dissolved in ethanol to obtain a 20% solution. Titanium oxide was added to this ethanol solution, and ethanol was removed in a rotary evaporator to obtain titanium oxide coated with a mixture of an oil component and a surfactant. Separately 2-5
After adding and kneading the remaining amount of the mixture of the components and the components of 6 to 10, the zinc oxide coated with the mixture of the oil and the surfactant was mixed to prepare a bath agent.

Comparative Example 1 (Prescription)% by weight 1. 1. Titanium oxide (Taipec CR-50) 5.0 Perfume 1.0 3. Tocopherol acetate 0.05 4. Sodium bicarbonate 25.0 5. Sodium carbonate balance 6. 6. Succinic acid 45.0 Touki dried extract 0.58. Pigment trace (Production method) Components 1 to 8 were produced by kneading with a disper.

Comparative Example 2 (Prescription)% by weight 1. 1. Titanium oxide (Taipec CR-50) 5.0 Perfume 1.0 3. 3. POE (10) oleyl ether 1.0 (Nikkor MYO10, Nippon Surfactant Industries) Sodium bicarbonate 25.0 5. Sodium carbonate balance 6. 6. Succinic acid 45.0 Touki dried extract 0.58. Pigment trace amount (Production method) Components 2 and 3 were mixed, and one third of the mixture and titanium oxide were kneaded with a disper to obtain titanium oxide coated with a mixture of an oil component and a surfactant. Separately, the remainder of the mixture of the components 2 and 3 and the components 5 to 8 were added and kneaded, and then the titanium oxide coated with the mixture of the oil and the surfactant was mixed to prepare a bath agent.

Comparative Example 3 (Prescription)% by weight 1. Titanium oxide 5.0 2. Vitamin E 0.05 3. Jojoba oil 0.15 4. Perfume 1.05. POE (20) Sorbitan 1.0 Monooleate (Nikkor TO-10, Nippon Surfactant Industries) 6. Sodium bicarbonate 25.0 7. 7. Sodium carbonate balance 8. Succinic acid 45.0 Touki dried extract 0.510. Pigment trace amount (Production method) 2 to 5 components were mixed, and one third of the mixture was dissolved in ethanol to obtain a 20% solution. Titanium oxide was added to this ethanol solution, and ethanol was removed in a rotary evaporator to obtain titanium oxide coated with a mixture of an oil component and a surfactant. Separately 2-5
After adding and kneading the remaining amount of the mixture of the components and the components of 6 to 10, the zinc oxide coated with the mixture of the oil and the surfactant was mixed to prepare a bath agent.

Comparative Example 4 (Prescription)% by weight 1. 1. Titanium oxide (Taipec CR-50) 5.0 Perfume 1.0 3. POE (20) hydrogenated castor oil 1.0 (Nikkor HCO-20, Nippon Surfactant Industries) Sodium bicarbonate 25.0 5. Sodium carbonate balance 6. 6. Succinic acid 45.0 Touki dried extract 0.58. Pigment trace amount (Production method) Components 2 and 3 were mixed, and half of the mixture was kneaded with titanium oxide and a disper to obtain titanium oxide coated with a mixture of an oil component and a surfactant. Thereafter, the remainder of components 2 and 3 and components 4 to 8 were added and kneaded, and then titanium oxide coated with a mixture of an oil component and a surfactant was mixed to prepare a bath agent.

Comparative Example 5 (Prescription)% by weight 1. 1. Titanium oxide (Taipec CR-50) 5.0 Perfume 1.0 3. POE (1) POP (8) Cetyl ether 1.0 (Nikkor PBC-41, Nippon Surfactant Industries) Sodium bicarbonate 25.0 5. Sodium carbonate balance 6. 6. Succinic acid 45.0 Touki dried extract 0.58. Pigment trace amount (Production method) POE (1) POP (8) Cetyl ether A nonionic surfactant and titanium oxide were mixed and kneaded with a disper to obtain titanium oxide coated with only the surfactant. Thereafter, a fragrance and components of 4 to 8 were added and kneaded to produce.

Comparative Example 6 (Prescription)% by weight 1. 1. Titanium oxide (Taipek A-100) 5.0 Vitamin E 0.05 3. Jojoba oil 0.15 4. Perfume 1.05. POE (34) POP (23) 1.0 Stearyl ether (UNICEF 34S23, NOF) 6. Sodium bicarbonate 25.0 7. 7. Sodium carbonate balance 8. Succinic acid 45.0 Touki dried extract 0.510. Pigment trace (Production method) 2 to 4 components and POE (34) POP (2
3) One fifth of the amount of stearyl ether was mixed, and the mixture was dissolved in ethanol to obtain a 20% solution. Titanium oxide was added to this ethanol solution, and ethanol was removed in a rotary evaporator to obtain titanium oxide coated with a mixture of an oil component and a surfactant. Separate POE
(34) remaining amount of POP (23) stearyl ether and 6
After adding and kneading the components of No. 10 to 10, the titanium oxide coated with the mixture of the oil and the surfactant was mixed to prepare a bath agent.

Comparative Example 7 (Prescription)% by weight 1. 1. Titanium oxide (Taipek CR-50) 6.0 Perfume 1.0 3. Tocopherol acetate 0.05 4. 4. POE (3) POP (17) 1.0 (Pluronic L31, manufactured by Asahi Denka) Sodium bicarbonate 25.0 6. 6. Sodium carbonate balance 7. succinic acid 45.0 Touki dried extract 0.59. Pigment traces (Production method) Components 1 and 2 and 1/10 of 4 were added and mixed, and the mixture and titanium oxide were kneaded with a disper to obtain titanium oxide coated with a mixture of oil and surfactant. . After separately adding the remaining of 4 and the components of 5 to 9 and kneading,
Titanium oxide coated with a mixture of oil and surfactant was mixed to produce a bath agent.

Comparative Example 8 (Prescription)% by weight 1. 1. Titanium oxide (Taipek CR-50) 6.0 Perfume 1.0 3. Tocopherol acetate 0.05 4. 4. POE (3) POP (17) 1.0 (Pluronic L31, manufactured by Asahi Denka) Sodium bicarbonate 25.0 6. 6. Sodium carbonate balance 7. succinic acid 45.0 Touki dried extract 0.59. Dye trace amount (Production method) 1/10 amount of 2 component and 1/3 of 3 component
The 10 parts and 4 components were mixed, and this mixture and titanium oxide were kneaded with a disper to obtain titanium oxide coated with a mixture of an oil component and a surfactant. Separately, after adding and kneading the remainder of the mixture of 3 and the components of 5 to 9, titanium oxide coated with a mixture of an oil and a surfactant was mixed to prepare a bath agent.

Test Example The following evaluation tests were performed on the foaming bath agents of Examples 1 to 5 and Comparative Examples 1 to 8. The evaluation was performed in five steps according to the evaluation criteria shown in Table 1, and the average score was used as the score. Table 2 shows the results.

(Test Method) Floating prevention effect of inorganic pigment and dispersibility of inorganic pigment Into a transparent glass container, 20 liters of hot water at 45 ° C., 5 g of a foaming bath agent are added, and after stirring, the hot water temperature is maintained at around 45 ° C. with a throw heater equipped with a thermostat. Let it stand for a while,
The degree of suspension of the inorganic pigment and the dispersibility of the inorganic pigment were evaluated. 2. Effect of preventing inorganic pigment from adhering to bathtub wall 20 l of 45 ° C hot water is put in a stainless steel container, 5 g of a foaming bath agent is charged, and after stirring, it is left still for 1 hour while maintaining the hot water temperature at around 45 ° C by a throw-in heater equipped with a thermostat. And
After drainage, the adhesion to the wall was evaluated.

[0037]

[Table 1]

[0038]

[Table 2]

As is clear from the results shown in Table 2, the foaming bath agent of the present invention has no floating inorganic pigment at the time of foaming and dissolution.
The usability was excellent in the dispersion stability of the inorganic pigment, and the usability was good.

[0040]

According to the foaming bath agent of the present invention, since the inorganic pigment does not float, there is no discomfort to the bather, and the bathtub can be easily cleaned after bathing.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (3)

(57) [Claims] 1. An effervescent bath agent containing a carbonate and / or a hydrogen carbonate and an organic acid, wherein the nonionic surfactant is represented by any one of the following general formulas (1) to (5): Inorganic pigment coated with a mixture of at least one of
An effervescent bath agent characterized by being blended at 10% by weight. Embedded image Embedded image Embedded image Embedded image Embedded image 2. The foaming property according to claim 1, wherein the inorganic pigment is coated so that the amount of the nonionic surfactant is 25 to 80% by weight of the total amount of the nonionic surfactant and the oil content. Bath agent. 3. The foaming bath agent according to claim 1, wherein the amount of the surfactant and the oil component to be coated is 1 to 20% by weight based on the weight of the inorganic pigment.