JP5987162B2 - Briquette bath - Google Patents

Description

  The present invention relates to a briquette-type bath, and more specifically, it has excellent solubility while generating a high amount of fumaric acid as an organic acid, generates carbon dioxide in bath water, and is insoluble in fumaric acid. The present invention relates to a briquette bathing agent that does not generate a product.

  Conventionally, a solid bath agent that contains an organic acid and a carbonate and generates carbon dioxide gas at the time of use is widely known, and one of them is a briquette bath agent. This briquette type bathing agent is a bathing agent applying a dry compression granulation method in which a raw material powder is compression-molded between two rolls, as known in Patent Document 1 and Patent Document 2, and the like. By changing the rolls of the book, various sizes and shapes can be made, and not only can appeal to consumers easily, but also the specific surface area can be adjusted, so the melting time can be shortened or lengthened A bathing agent that can be made. In particular, a briquette bath with a large specific surface area with a particle size of 3 mm to 10 mm can be completely dissolved within 1 minute from charging, and can quickly dissolve carbon dioxide in the bath water. It is popular as a carbon dioxide bathing agent that is easy for consumers to use.

  On the other hand, as described in Patent Document 2, fumaric acid, which is relatively inexpensive among organic acids and excellent in moldability, is used as a main organic acid component, and briquette-type bathing agent, particularly having a large specific surface area of 3 mm to 10 mm. When blended in a briquette bath, the fumaric acid may not completely react with the carbonate, and there is a problem that some fumaric acid floats in the bath water without reacting. And since fumaric acid has low solubility among organic acids (0.63 g / 100 mL, 25 ° C.), once it floats on the surface of the bath water in an unreacted state, it takes several minutes to dissolve, which is uncomfortable for consumers. There were times when I thought. Therefore, conventionally, the blending amount of fumaric acid in the briquette bath is 10% or less as an allowable range from consumers.

  In addition, when fumaric acid is highly blended in a briquette-type bath having a large specific surface area of 3 mm to 10 mm, as described in Example 9 of Patent Document 2, fumaric acid itself has a small specific gravity, so there is a portion that dissolves on the surface. Many foam on the bathtub surface. For this reason, not only carbon dioxide cannot be dissolved efficiently in the bath water, but also vigorously generated carbon dioxide may cause waste to the user, which is also a conventional problem. On the other hand, in order to dissolve carbon dioxide gas effectively in the bath water, the content of organic acid and carbonate is lowered, and the high concentration of components such as inorganic salts dissolves the carbon dioxide gas generated in the bath water. However, in such a formulation, the amount of generated carbon dioxide gas is also reduced, so that the expected effect cannot be obtained.

  Among the above problems, for the problem that the foam bathing agent floats on the surface, as described in Patent Document 3, a nonionic surfactant having an HLB of 2 to 6 is added, and the time for floating on the bath surface is minimized. It is known to do. However, this method is effective for tablets with a large particle size, but the particle size is about the same as that of beans, and the improvement effect is not observed with briquette baths that have a much larger surface area in contact with water than tablets. On the other hand, such nonionic surfactants have a relatively high hydrophobicity, so that the surface of the hot water floats up and may cause glare and the like, which causes discomfort to consumers.

  As mentioned above, fumaric acid can be dissolved in bath water quickly even if it is highly blended, and carbon dioxide gas is generated in the bath water instead of the bath water surface. There has been a demand for a briquette bathing agent that does not generate an oil film or the like.

JP 2004-83584 A JP 2003-342164 A JP2011-190190A

  The present invention has been made in view of the above circumstances, and while the fumaric acid is blended in a high ratio, the user can be messed up by quickly dissolving in the bath water instead of the bath water surface and generating carbon dioxide gas. In addition, the present invention provides a briquette bathing agent that does not generate fumaric acid insoluble matter or oil film.

  The present inventor has decided to use a fumaric acid as a main component of an organic acid as a blending component in a briquette bath, particularly a briquette bath having a particle size of 3 to 10 mm. Was examined. As a result, even if fumaric acid is blended in the bathing agent composition at a blending amount of 10% by mass or more, a specific nonionic surfactant and an oil component are blended with the fumaric acid to bathe insoluble matter of fumaric acid. The inventors have found that a briquette-type bath agent composition that can be quickly dissolved in bath water without being floated on the hot water surface has been obtained, and the present invention has been completed.

That is, the present invention
(1) Briquette-type bath containing organic acid and carbonate, comprising the following components (A) to (C)
(A) 10% by mass or more of fumaric acid in the composition as the organic acid,
(B) polyoxyethylene fatty acid glyceryl type or pluronic type nonionic surfactant,
(C) a briquette-type bath containing an oil component,
(2) The briquette bath, wherein the polyoxyethylene fatty acid glyceryl type nonionic surfactant of component (B) is glyceryl to which 4 to 6 mol of ethylene oxide is added (capryl / capric acid),
(3) The pluronic-type nonionic surfactant of component (B) has an ethylenediamine-type pluronic-type nonionic surfactant having a molecular weight of 1500 to 4500 and a ratio of ethylene oxide to propylene oxide of 1: 9 to 4: 6. The briquette bath, which is an agent,
(4) The briquette bath, wherein the oil component of component (C) is a fatty acid triglyceride,
(5) Further, the briquette-type bath containing polyvinyl pyrrolidone.

  The briquette-type bath agent of the present invention (hereinafter referred to as “briquette bath agent”) contains fumaric acid as a main component of an organic acid, and has excellent solubility unique to briquette preparations. It dissolves gas and does not generate fumaric acid insoluble matter. Therefore, the briquette bath of the present invention has a better feeling of use and higher commerciality than the conventional briquette bath.

  In the present invention, the briquette bath is a small granular solid bath, generally having a particle size range of 3 mm to 10 mm, and having a granular shape such as a pillow shape, a lens shape, an almond shape, a prism shape, a rod shape, or a finger shape. The one of the shape.

  The particle size range of the briquette bath can be set according to the shape of the briquette. For example, when the shape has an elliptical shape such as an almond shape, the major axis of the elliptical shape is set within the upper limit of the diameter range. do it. In the case of an elliptical shape, the minor axis is preferably included within the lower limit of the diameter range. Furthermore, even when the briquette preparation has a polygonal shape such as a pillow shape, the longest diameter corresponds to the major axis of the elliptical shape, and the length of the shortest side corresponds to the minor axis of the elliptical shape. Furthermore, the minor axis is more preferably 1/2 or more and less than 1 of the major axis. If it is out of the above range, the finished briquette is not preferable because it causes many breakage of particles at the time of crushing or transportation, which is not satisfactory as a product.

  In the composition of the briquette bath of the present invention, an organic acid and a carbonate are blended. When this briquette bath is added to the bath water, the organic acid and the carbonate react to generate carbon dioxide. In the present invention, fumaric acid is used as the organic acid, and it is added in an amount of 10% by mass (hereinafter simply indicated as “%”) or more in the composition. More preferably, it is 10 to 40% in the composition, and more preferably 10 to 30%.

  The fumaric acid is preferably such that particles of 350 μm or less account for 95%. When fumaric acid with a particle size of 350 μm or more is 5% or more, fumaric acid that does not react with carbonate is likely to float in the bath water due to a decrease in the specific surface area of fumaric acid. May float on the surface of the bath and cause discomfort to the user.

  In the briquette bath of the present invention, other organic acids can be used in combination with the fumaric acid. Other organic acids used in combination include, for example, malic acid, succinic acid, citric acid, tartaric acid, maleic acid, pyrrolidone carboxylic acid, adipic acid, glutamic acid, ascorbic acid, etc. Especially, succinic acid and malic acid are formed. From the viewpoint of sex.

  The total amount of the organic acid in the briquette bath of the present invention is preferably 10 to 80%, more preferably 15 to 75%, particularly preferably 20 to 50% in the composition of the briquette bath. If it falls below this range, the foaming power becomes weak, and if it exceeds this range, it becomes difficult to ensure storage stability, so neither is preferred.

  The blending ratio of fumaric acid and other organic acids in the organic acid in the briquette bath of the present invention is not particularly limited, but other organic acids are 0% relative to 1 part by weight of fumaric acid. The amount is preferably about .25 to 4 parts by weight.

  On the other hand, as the carbonate used in the briquette bath of the present invention, carbonates generally used conventionally can be used, and examples thereof include sodium bicarbonate, sodium carbonate, sodium sesquicarbonate, Examples thereof include potassium carbonate, potassium hydrogen carbonate, magnesium carbonate, ammonium carbonate, and sodium hydrogen carbonate and sodium carbonate are particularly preferred because of their availability. These carbonates can be used alone or in combination of two or more.

  The blending amount of the carbonate in the briquette bath of the present invention is 10 to 80%, preferably 15 to 75%, particularly preferably 20 to 60%, based on the total amount of briquette bath. Below this range, the foaming power is weak and sufficient perfume ingredient volatilization cannot be obtained. Moreover, if this range is exceeded, it becomes difficult to ensure storage stability.

  The briquette bath of the present invention is blended with a polyoxyethylene fatty acid glyceryl type or pluronic type nonionic surfactant (hereinafter sometimes abbreviated as “nonionic surfactant”) as component (B). This nonionic surfactant is for increasing the reactivity of fumaric acid and carbonate, and its HLB value is preferably 7 or more, and more preferably 10 or more.

  Of the nonionic surfactants described above, examples of polyoxyethylene fatty acid glyceryl type nonionic surfactants include fatty acid glyceryl to which 4 to 8 mol of ethylene oxide has been added, and particularly preferred are polyoxyethylene (6 ) (Capryl / capric acid) glyceryl. On the other hand, among the pluronic-type nonionic surfactants, an ethylenediamine-type pluronic-type nonionic surfactant having a molecular weight of 1500 to 4500 and a ratio of ethylene oxide to propylene oxide of 1: 9 to 4: 6 is preferable. Is mentioned. The blending amount of the nonionic surfactant in the briquette bath of the present invention is about 0.001 to 0.8% in the briquette bath, and preferably about 0.02 to 0.5%.

  Furthermore, an oily component is mix | blended with the briquette bath agent of this invention as a component (C). This oil component is for suppressing the floating bubbles generated when the briquette is dissolved by blending the nonionic surfactant. By further blending this oil component, not only can fumaric acid be dissolved, but also floating bubbles can be suppressed at the same time. As this oil component, fatty acid triglycerides such as vegetable oil, tri (caprylic / capric acid) glyceryl, glyceryl tricaprylate, glyceryl tri-2-ethylhexanoate can be used. The oil component preferably has a specific gravity of about 0.90 to 0.96. The blending of the oil component having such a specific gravity allows foaming to be performed not in the hot water surface but in the hot water even if high content of fumaric acid is blended in the briquette bath agent, and the carbon dioxide gas is effectively contained in the hot water. It is desirable because it can be dissolved. When this oil component is blended, the blending amount is about 0.1 to 1.0% in the briquette bath, and preferably about 0.2 to 0.5%.

  If necessary, the briquette bath of the present invention can further contain a water-soluble polymer. This water-soluble polymer is for further reducing the insoluble matter of fumaric acid, and examples of preferable ones include water-soluble polymers such as polyvinyl pyrrolidone, sodium carboxymethyl cellulose, dextrin, and in particular, polyvinyl Pyrrolidone is most effective because it has the effect of suppressing insolubles of fumaric acid even in a small amount. In the case of blending this water-soluble polymer, the blending amount in the briquette bath is about 0.05 to 1%, preferably about 0.1 to 0.5%.

  In addition to the above-described components, the briquette bath of the present invention can contain components such as inorganic salts, pigments, fragrances, and moisturizing components. Moreover, in order to prepare a briquette formulation efficiently, you may mix | blend components, such as a lubricant, a mold release agent, and a binder.

  The briquette bath of the present invention is produced according to a conventionally known method for producing briquette preparations. That is, it can be obtained by molding a powder composition containing the above-described components with a briquetting machine. This briquetting machine is a dry compression granulator that compresses and molds raw material powder between two rolls that rotate in the opposite directions at the same speed. A pocket that is a mother mold is engraved. Depending on the shape and size of the pocket, briquettes of various shapes and sizes can be obtained.

  In preparation of the above powder composition, first, fumaric acid and nonionic surfactant are directly mixed, then other raw materials are blended, and briquette bath is molded, the fumaric acid insoluble matter is further reduced. preferable.

  EXAMPLES Next, although an Example is given and this invention is demonstrated in more detail, this invention is not restrict | limited at all by these Examples.

Example 1
After uniformly mixing the bath agent composition shown in Table 1 below, a briquette machine (BSS-1H manufactured by Shinto Kogyo Co., Ltd.) was used, and a flat briquette bath agent (particles of the present invention 1 to 3) and a particle size of 4.8 mm Comparative products 1 to 4) were prepared.

  30 g each of the briquette baths of the present invention products 1 to 3 and comparative products 1 to 4 thus obtained were put into 200 L bath water (41 ° C.), the foaming position in the bathtub, the feeling of foaminess during foaming, and the addition The surface condition of the bath water later, the dissolution time in the bath water surface and the bath water surface were examined. Among these, the foaming position indicates the strongest foaming location, and the presence or absence of a feeling of musiness was evaluated as ◯ when there was no sensation, and was evaluated as x when there was. In addition, the bath water surface condition is the bath water surface condition after 1 minute of charging, ○ when there is nothing, especially when the hot water surface is clean ◎, when white insoluble matter, foam, oil film, etc. are observed × and events that can be recognized together. The results are shown in Table 2.

Example 2
A round corner pyro type briquette bath having an average particle size of 9.0 mm was prepared using a briquette machine (BSS-1V type manufactured by Shinto Kogyo Co., Ltd.) with a sufficiently mixed bath composition of the following composition. This was quickly dissolved in the bath water to generate carbon dioxide gas, so that the user was not lost, and fumaric acid insoluble matter or oil film was not generated.

(Treatment) (%)
Fumaric acid 29
Malic acid 10
Succinic acid 3
Sodium bicarbonate 29
Sodium carbonate 19
Sodium chloride 5
PEG6000 0.68
Sodium L-glutamate 3
Soybean oil 0.3
POE (capryl / capric acid) glyceryl
(HLB = 19) 0.3
Ethylenediaminetetra-POEPOP
(HLB = 5) 0.02
Fragrance 0.7
Dye amount

Example 3
A flat briquette bath having an average particle size of 3.5 mm was prepared using a briquette machine (BSS-1V type, manufactured by Shinto Kogyo Co., Ltd.) with a sufficiently mixed bath composition of the following composition. This was quickly dissolved in the bath water to generate carbon dioxide gas, so that the user was not lost, and fumaric acid insoluble matter or oil film was not generated.

(Treatment) (%)
Fumaric acid 12
Malic acid 30
Sodium bicarbonate 30
Sodium carbonate 17
Sodium sulfate 8
PEG6000 0.68
Sodium L-glutamate 1.0
Soybean oil 0.3
Ethylenediaminetetra-POEPOP
(HLB = 10) 0.02
Fragrance 1.0
Dye amount

Example 4
A flat briquette bath having an average particle size of 4.8 mm was prepared using a briquette machine (BGS-1H type Shinto Kogyo Co., Ltd.) with a sufficiently mixed bath composition of the following composition. This was quickly dissolved in the bath water to generate carbon dioxide gas, so that the user was not lost, and fumaric acid insoluble matter or oil film was not generated.

(Treatment) (%)
Fumaric acid 19
Malic acid 19
Sodium bicarbonate 22
Sodium carbonate 25
Sodium sulfate 13
PEG6000 0.47
Olive oil 0.5
Dibutylhydroxytoluene 0.01
Ethylenediaminetetra-POEPOP
(HLB = 10) 0.02
Fragrance 1.0
Dye amount

Example 5
A flat briquette bath having an average particle size of 4.8 mm was prepared using a briquette machine (BSS-1H type Shinto Kogyo Co., Ltd.) with a bath composition of the following composition sufficiently ground and mixed. This was quickly dissolved in the bath water to generate carbon dioxide gas, so that the user was not lost, and fumaric acid insoluble matter or oil film was not generated.

(Treatment) (%)
Fumaric acid 20
Malic acid 18
Sodium bicarbonate 35
Sodium carbonate 18
Bentonite 2
Water-soluble polymer coating of titanium oxide 5
PEG6000 0.29
Soybean oil 0.5
Dibutylhydroxytoluene 0.01
POE (capryl / capric acid) glyceryl (HLB = 19) 0.5
Fragrance 0.7
Dye amount

Example 6
A flat briquette bath having an average particle size of 4.8 mm was prepared using a briquette machine with a bath composition of the following composition sufficiently ground and mixed.

(Treatment) (%)
Fumaric acid 25
Malic acid 14
Sodium bicarbonate 27
Sodium carbonate 20
Aluminum potassium sulfate hydrate 2
Sodium sulfate 9
Bentonite 0.8
PEG6000 0.8
Soybean oil 0.2
POE (capryl / capric acid) glyceryl (HLB = 19) 0.2
Fragrance 1.0
Dye amount

  Although the briquette bath of the present invention contains 10% or more of fumaric acid, it can be foamed not in the bath surface but in the bath water, so that the carbon dioxide gas can be effectively dissolved in the bath water. it can. Moreover, since it can be foamed in bath water in this way, the user does not get lost with carbon dioxide gas generated, and the hot water surface after foaming is clean with no oil film or the like.

  Therefore, the briquette bath of the present invention can be used as a bath agent that is easy to use and has high commercial properties.

Claims (5)

Briquette-type bath containing organic acid and carbonate, comprising the following components (A) to (C)
(A) 10% by mass or more of fumaric acid in the composition as the organic acid,
(B) polyoxyethylene fatty acid glyceryl type or pluronic type nonionic surfactant,
(C) A briquette-type bath containing an oily component.   The briquette-type bath agent according to claim 1, wherein the polyoxyethylene fatty acid glyceryl type nonionic surfactant of component (B) is glyceryl to which 4 to 8 moles of ethylene oxide is added (capryl / capric acid).   The component (B) pluronic-type nonionic surfactant is an ethylenediamine-type pluronic-type nonionic surfactant having a molecular weight of 1500 to 4500 and a ratio of ethylene oxide to propylene oxide of 1: 9 to 4: 6. The briquette type bath agent according to claim 1.   The briquette-type bath agent according to any one of claims 1 to 3, wherein the oily component of component (C) is a fatty acid triglyceride.   Furthermore, the briquette type bath agent of any one of Claim 1 thru | or 4 containing polyvinylpyrrolidone.