JP5631027B2 - Compression molding bath composition - Google Patents

Description

  The present invention relates to a compression mold bath agent composition, and more particularly to a compression mold bath agent composition containing a carbonate and an organic acid.

  Conventionally, bathing agent compositions containing carbonates and organic acids have been known to be able to propose bathing fun by foaming when bathing water, warm bath effect by carbon dioxide gas, etc., and various products have been marketed. Yes. Among them, compression molding bath agents such as tablets and briquettes are widely used because they dissolve while blowing carbon dioxide gas when introduced into the bath water, and the carbon dioxide gas sufficiently dissolves in the bath water.

  However, a compression molding bath composition containing a carbonate and an organic acid generally has poor moldability and thus tends to cause molding defects. In particular, as a manufacturing obstacle in the compression molding of a bath agent composition containing a carbonate and an organic acid, the powder tends to adhere to a die of a press tablet machine (a mortar) or a roll of a briquette machine. Binding is a problem. In order to suppress such molding troubles of tablets and briquettes, improvement of moldability is performed by using a lubricant such as talc, magnesium stearate, porous light anhydrous silicic acid, etc. (Patent Document 1). ).

  On the other hand, techniques for blending various amino acids as medicinal ingredients into bath preparations are known (Patent Documents 2 to 4), but what kind of effect is exerted on the moldability of solid bath preparations is not known at all. .

JP 2003-95916 A Japanese Patent Application Laid-Open No. 11-292751 JP 2004-67588 A JP-A-3-58919

However, the lubricants as described above are generally insoluble in water, and when a bath preparation containing the lubricant is added to the bath water, insoluble matters remain on the water surface or the bottom of the bathtub, causing problems such as roughness. was there.
Accordingly, an object of the present invention is to provide a compression mold bath agent composition that has no undissolved components of the bath agent component, has good moldability, and has sufficient stability.

  Therefore, as a result of various studies to improve the compression moldability of a bath agent containing a carbonate and an organic acid, the present inventor unexpectedly combined a certain amount of glycine, which is a kind of amino acid, to perform compression molding. , Prevents molding troubles such as sticking and binding, and stably obtains a compression molding bath agent. The resulting molded product has high hardness, so it does not break during production and distribution, and unmelted Found no.

That is, the present invention includes the following components (A) to (C),
(A) Glycine 1.2-18% by mass,
The present invention provides a compression molding bath agent composition containing (B) an organic acid having no amino group and (C) a carbonate.

  The compression mold bath composition of the present invention is excellent in moldability at the time of compression molding, and does not cause molding trouble in various compression moldings such as press tableting and briquetting. Moreover, since the hardness of a molded product is high, it is excellent in handling property. Furthermore, when it is poured into bath water, it has good foamability and does not cause undissolved residue.

  The compression mold bath agent composition of the present invention contains 1.2 to 18% by mass of (A) glycine. By containing glycine in an amount of 1.2% by mass or more, the compression moldability of a bath agent containing an organic acid and a carbonate is remarkably improved, sticking and binding during compression molding can be prevented, and the hardness of the resulting bath agent can be reduced. Since it rises, it can prevent breakage during production and distribution. The content of glycine is more preferably 1.5 to 17% by mass, further preferably 2 to 15% by mass, and particularly preferably 3 to 9% by mass.

  Examples of the organic acid having no amino group (B) used in the present invention include malic acid, tartaric acid, citric acid, maleic acid, succinic acid, phthalic acid, fumaric acid, glutaric acid, adipic acid, benzoic acid, salicylic acid and the like. Organic acids having no solid amino group at room temperature (20 to 30 ° C.) are preferred. A more preferable combination of organic acids is one or a combination of two or more organic acids selected from malic acid, tartaric acid, citric acid, maleic acid, succinic acid and fumaric acid. In particular, the (B) organic acid preferably contains an organic acid having a melting point of 100 ° C to 140 ° C. Examples of such organic acids include malic acid and maleic acid. These organic acids having a melting point of 100 ° C. to 140 ° C. are preferably contained in the organic acid of the component (B) in an amount of 30% by mass or more, particularly 50% by mass or more from the viewpoint of increasing the hardness of the compression mold bath agent. . Therefore, particularly preferred organic acid combinations are one or more organic acids selected from malic acid, tartaric acid, citric acid, maleic acid, succinic acid and fumaric acid, and malic acid and And / or a combination containing 30% by mass to 100% by mass, particularly 50% by mass to 80% by mass of maleic acid.

  (B) The content of the organic acid in the bath agent of the present invention is preferably from 10 to 80% by mass, more preferably from 15 to 75% by mass, particularly preferably from 20 to 65% by mass, from the viewpoint of carbon dioxide generation effect. 40-53 mass% is especially preferable.

Examples of (C) carbonate used in the present invention include bicarbonate and carbonate. More specifically, sodium bicarbonate, sodium carbonate, potassium carbonate, potassium bicarbonate, calcium carbonate, magnesium carbonate, sesquicarbonate Sodium etc. are mentioned, These can be used individually or in mixture. The average particle size of the carbonate to be used is preferably 30 to 500 μm, more preferably 40 to 300 μm, and particularly preferably 50 to 200 μm from the viewpoint of compression moldability. The average particle size is measured as follows.
Sieve: JIS standard sieve φ200mm
Opening: From the upper stage, a receiver is provided under a sieve having openings of 2000 μm, 1400 μm, 1000 μm, 710 μm, 500 μm, 355 μm, 250 μm, 180 μm, 125 μm, 90 μm, 63 μm and 45 μm, respectively.
Shaker: Sieve shaker Ro-TAP SHAKER DB type (HEIKO SEISAKUSHO)
Method: Place 50 g of sample on a 2000 μm sieve and classify with a sieve shaker for 5 minutes. The mass of the particles remaining on each sieve and the receiver is measured, and the mass ratio (%) of the particles on each sieve is calculated. From the receiver, the mass ratio of the particles on the sieve having a small mesh is accumulated, and the particle size at which the total becomes 50% is defined as the average particle size.
Sodium carbonate includes high specific gravity granular ash (apparent specific gravity of 1.0 or more) and low specific gravity light ash (apparent specific gravity of less than 1.0). The use of light ash is particularly advantageous in terms of moldability. preferable.
The content of (C) carbonate in the bath agent of the present invention is preferably 15 to 70% by mass, more preferably 20 to 60% by mass, particularly preferably 25 to 40% by mass, from the viewpoint of carbon dioxide gas generation effect.

  In the bath preparation of the present invention, it is particularly preferable to further contain (D) an oily fragrance from the viewpoint of bathing effect and moldability. Examples of such oily fragrances include fragrances having a water / octanol partition coefficient of 1 to 7, preferably terpene hydrocarbons having 10 carbon atoms, formate esters, acetate esters or propionic acids of alcohols having 5 to 20 carbon atoms. The fragrance | flavor component containing 1 type, or 2 or more types chosen from ester and a C10-C15 ketone is mentioned.

Examples of the terpene hydrocarbon having 10 carbon atoms include α-pinene, β-pinene, camphene, limonene, terpinolene, myrcene, p-cymene and the like.
Examples of the formic acid ester, acetic acid ester or propionic acid ester of an alcohol having 5 to 20 carbon atoms include geranyl formate, benzyl formate, and phenylethyl formate; isoamyl acetate, citronellyl acetate, geranyl acetate, benzyl acetate, linalyl acetate, and phenyl acetate Examples thereof include ethyl, menthyl acetate, bornyl acetate, terpinyl acetate, cinnamyl acetate, anisyl acetate, mircenyl acetate, linalyl propionate, citronellyl propionate, geranyl propionate, benzyl propionate, terpinyl propionate, cinnamil propionate, and the like.
Examples of the ketone having 10 to 15 carbon atoms include damasenone, dynascon, damascon, yonon, and methylyonone.
These fragrances may be used alone or in combination of two or more. Moreover, it can also mix and contain with another fragrance | flavor.

  In the bath preparation of the present invention, the content of the component (D) is preferably 0.001 to 5% by mass, particularly 0.005 to 3% by mass, and more preferably 0, from the viewpoint of improving the bathing effect and moldability. It is preferably 0.01 to 2% by mass, more preferably 0.1 to 1% by mass.

  In the bath agent of the present invention, the mass ratio (A / B) of the component (A) to the component (B) is from 0.015 to 1 in terms of both the compression moldability and the hardness of the molded product. 8, more preferably 0.02 to 0.5, and particularly preferably 0.04 to 0.2.

  Further, in the bath preparation of the present invention, components other than those described above, for example, inorganic salts other than carbonates, herbal medicines, fats and oils, alcohols, polyhydric alcohols, saccharides, moisturizers, cooling sensitizers, water-soluble high You may contain a molecule | numerator etc. as an arbitrary component.

  The compression mold bath agent of the present invention is compressed and molded into a solid, and examples thereof include tablets and briquettes. These bath preparations are preferably 0.1 to 100 g, especially 2 to 80 g per tablet or particle. These are generally manufactured by a compression molding method using a press tableting machine or a briquette machine, but may be other manufacturing methods, for example, those obtained by dissolving the components into a solid.

  The composition shown in Table 1 was mixed by a conventional method and compression-molded with a press tableting machine to produce a tablet-type bath preparation of 45 g / tablet. In addition, light ash was used for sodium carbonate.

[Evaluation method]
(1) Formability Visually evaluate tableting obstacles such as binding, capping, sticking and cracking during continuous molding, and from the number of tablets until the tableting trouble is recognized (the number of tablets for which continuous molding was possible) to the following: Evaluated by criteria.
(Evaluation criteria)
A: Continuous molding of 20 tablets or more is possible. ○: Continuous molding of 10 to 19 tablets is possible.

(2) Molded product hardness (handleability)
The tablet hardness immediately after molding was measured using a Kiyama-type hardness meter, and the handleability of the molded product was evaluated according to the following criteria.
A: 10 kgf or more (good handling)
○: 8 kgf or more (no handling problems)
X: Less than 8 kgf (poor handling)

[result]
The results are shown in Table 1. As is apparent from Table 1, in the bath preparation of Comparative Example 1-3, binding and capping or cracking of the tablet was observed, the hardness of the molded product was low, and both moldability and handling were poor. On the other hand, in the bath preparations of Examples 1 to 5, both moldability and handling properties were good.
From this, it became clear that the compression mold bath agent composition of the present invention is excellent in moldability and also has good handleability of the molded product.
Moreover, when the bath agent of the present invention was poured into a bath water of 40 ° C. and 150 L, foamed and bathed, it was excellent in warmth feeling due to carbon dioxide gas, and no undissolved residue was found in the bathtub.

Claims (6)

Next components (A) to (C)
(A) Glycine 1.2-18% by mass,
(B) A compression molding bath composition comprising an organic acid having no amino group and (C) a carbonate.   The compression molding bath agent composition according to claim 1, wherein the component (B) contains an organic acid having a melting point of 140 ° C or lower.   The compression molding bath composition according to claim 1 or 2, wherein the mass ratio (A) / (B) of the component (A) to the component (B) is 0.015 to 1.8.   The compression molding bath agent composition according to any one of claims 1 to 3, wherein the carbonate is one or more selected from sodium bicarbonate and sodium carbonate.   The compression molding bath composition according to any one of claims 1 to 4, further comprising (D) an oily fragrance. The tablet hardness according to any one of claims 1 to 5, wherein the tablet hardness as measured by a Kiyama hardness tester is 8 kgf or more.