JPS6293222A - Formable bathing agent - Google Patents

Abstract

PURPOSE:To obtain a foamable bathing agent having improved storage stability of the foaming component and consisting of granules having multi-layer structure where an organic acid component and a carbonate component are separated from each other interposing one or more bathing component layers therebetween. CONSTITUTION:The objective foamable bathing agent is granules each having a multi-layer structure 3-4 layers from the viewpoint of stability, productivity, cost, shape retainability, etc.) covering the surface of the core. An organic acid component (e.g. dried citric acid, tartaric acid, malic acid, etc.) and a carbonate component (e.g. dried sodium bicarbonate, sodium sesquicarbonate, etc.) are separated from each other in the granule interposing one or more bathing component layers therebetween. The average particle diameter of the granule is 0.05-20.0mm, preferably 0.5-10.0mm from the viewpoint of appearance, stability and solubility. EFFECT:It can be stored and distributed by putting into a can, bottle, synthetic resin container, paper container, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to foaming bath agents, and more particularly to granular foaming bath agents with improved storage stability of foaming ingredients.

BACKGROUND OF THE INVENTION Foaming bath additives have been known as one of the bath additives added to hot water in a bathtub. This Uuna bath agent mainly contains an organic acid component and a carbonate component as foaming components, and when added to bath water, both components react in the presence of water and produce carbonate. Gas is generated, which causes foaming. However, this reaction easily proceeds even in the presence of a small amount of water due to moisture absorption of the bath additive during storage, so improving the storage stability of foaming ingredients is a very important issue in foaming bath additives. It becomes.

Thus, foaming bath additives have traditionally been made using powder (Japanese Patent Application Laid-Open No. 59-7
0610) and granules (Japanese Unexamined Patent Publication No. 1983-52919) have been proposed, but these have a large surface area, and therefore tend to have high hygroscopicity and deteriorate the storage stability of the foaming component. Mainly, tablet-shaped products with relatively low hygroscopicity and better storage stability of effervescent ingredients are used practically as effervescent bath agents.

In view of these circumstances, the inventors of the present invention have conducted intensive studies in order to obtain a foaming bath agent that has a granular form that is convenient for use and has a foaming component that has excellent storage stability. the result,
It was discovered that this objective could be achieved by creating granules with a multilayer structure in which the organic acid component and carbonate component are separated from each other in the bath agent components, leading to the completion of the present invention.

Summary of the Invention The present invention provides a granular bath agent having a multilayer structure consisting of a granule core and two or more surface layers covering the surface thereof, and having one or more layers of an organic acid component and a carbonate component. The present invention provides a foaming bath agent in which component layers are individually arranged.

In the foaming bath agent of the present invention, since the organic acid component and the carbonate component are separated by other bath agent components, the reaction of both components due to moisture absorption is sufficiently suppressed, and even in the form of granules, the foaming component can significantly improve storage stability.

The bath additive of the present invention is a granule with a multilayer structure consisting of a granule core and two or more surface layers covering the surface of the granule core. The number of surface layers is not particularly limited as long as it is two or more layers, but 3 to 4 layers is preferable from the viewpoints of stability, manufacturing process, cost, shape retention, etc. The organic acid component and the carbonate component may be placed in either the granule core or the surface layer, and each may be divided into a plurality of layers, but both components may be separated by at least one bath agent component layer. It is necessary that the

Examples of such an arrangement include an organic acid component as a granule core, which is sequentially coated with a bath agent component layer, a carbonate component layer, and a bath agent component layer; a carbonate component as a granule core;
After sequentially coating the bath agent component layer, organic acid component layer, and bath agent component layer, the bath agent component is used as a core, and the organic acid component layer, bath agent component layer, carbonate component layer, and bath agent component layer are sequentially coated. Examples include those coated with an agent component layer. The size of the granules includes, for example, an average particle diameter of 0.05+++ m to 20.00 m, and from the viewpoint of visual perception, stability, and solubility, 0.5
~l010 dragon is preferred.

Examples of the organic acid component used include dry citric acid, tartaric acid, malic acid, malonic acid, pyridonecarboxylic acid, succinic acid, fumaric acid, sodium citrate, sodium succinate, sodium fumarate, etc. However, two or more types may be used in combination. Usually, the organic acid component is blended in an amount of 5 to 75% by weight based on the total amount of the bath agent.

Examples of the carbonate component include dry sodium bicarbonate, sodium carbonate, sodium sesquicarbonate, potassium carbonate, potassium bicarbonate, ammonium carbonate, and these may be used alone or in combination of two or more. Typically, the carbonate component is 10-25% based on the weight of the organic acid component used.
It is blended in a range of 0% by weight.

In this specification, the term "bath agent components" refers to various components used in bath agents other than the above-mentioned foaming components. Examples of such bath agent ingredients include ingredients such as Hagi.

Hot spring ingredients, other inorganic ingredients: Sodium chloride, Yunohana,
Borax, boric acid, sodium sulfate, potassium sulfide, sodium sulfide, sulfur, calcium oxide, potassium nitrate, sodium nitrate, calcium nitrate, iron sulfite, aluminum sulfate, metasilicic acid, neutral clay, sodium thiosulfate,
Sodium polyphosphate, potash soap, calcium hydrogen phosphate, potassium bromide, potassium chloride, ammonium chloride,
Iron sulfate, slaked lime, potassium permanganate, sodium phosphate, sodium hyposulfite, calcium thionitrate, sodium hydroxide, mica powder, etc.

Organic excipients, fragrance ingredients, etc.: stearyl alcohol, liquid paraffin, white petrolatum, casein, skim milk powder, d1
2-menthol, e-menthol, peppermint oil, glycerin, ethanol, d-camphor, d12-camphor, turpentine oil, cypress oil, orange peel oil, methyl salicylate, cinnamon oil, bergamot oil, soda oil, pine oil, Lavender oil, bran oil, olive oil, soybean oil, Dennou, propylene glycol, water-soluble polymers (e.g. sodium carboxymethyl cellulose, hydroxypropyl cellulose,
pullulan, etc.), sugars (e.g., dextrin, lactose, etc.)
, various coloring agents, etc.

Herbal medicine extracts Niaoki, Aogiri, Aodurashuji, Madder, Akamegashiwa, Akebi, Japanese knotweed, Japanese knotweed, fig, Inokozuchi, Udo, Japanese knotweed, Ebisugusa, Hypericum perforatum, Hypericum perforatum, Onagiri, Japanese gourd, Karatai, Kiranthou, Clara, Chestnut, Japanese knotweed, Japanese knotweed, Goshuyu, Sakushi , Chinese ginger, Japanese calamus, Japanese ginger, Japanese ginger, calamus, honeysuckle, Japanese cedar, Japanese red cabbage, Japanese ginseng, Japanese ginseng, Japanese quince, Japanese spruce, Naginata koju, Nandina, Elderberry, Japanese quale, Japanese cabbage, Hamago, Japanese cypress, Loquat, Actinidia, Myamasukimi, Japanese hazel , Japanese yatsude, Japanese yamberry, Yokuinin, Mugwort, Waremokou, Mandarin orange, Coix trumpet, Great tree, Eleuthero, Senkyu, Chamomile, Keigai,
Extracts of Fujibakama, yuzu, Japanese grass, kakidoshi, honeysuckle, peach bud, rosemary, hops, etc.

In the present invention, the bath agent components are not particularly limited, and various bath agent components as described above can be used alone or in combination of two or more, and the blending amount of each component can also be adjusted as desired. Depending on the component, it can be selected as appropriate within a range that does not impair the storage stability of the foaming component. Of course, appropriate bath agent components may be mixed with each of the organic acid component and carbonate component.

The foaming bath agent of the present invention can be produced by sequentially forming layers of desired components around granule cores according to a conventional method. The granule core may be a solid granule of an organic acid component or a carbonate component having an appropriate particle size, or may be a granule prepared by a conventional method, for example, wet granulation, using an appropriate component. Each layer can be coated, for example, by spraying a suitable dispersion of the desired ingredients onto the granules and drying, and if necessary, a binder such as a water-soluble polymer or sugar can be used. In particular, it is preferable to use a centrifugal fluid coating granulator (for example, manufactured by Freund Sangyo Co., Ltd.) because spherical granules with a clear layered structure can be obtained.

The foaming bath agent of the present invention can be used in cans, bottles, synthetic resins, paper containers, etc.
It can be stored and distributed in various containers, and although it is in granular form, the storage stability of the foaming component is significantly improved, and carbon dioxide gas is generated due to the reaction of the foaming component during the storage and distribution process. This can prevent the packaging container from expanding or bursting, or from reducing the amount of carbon dioxide gas generated during use.

Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited thereto.

Example 1 Ingredients Weight % citric acid
15.0 Anhydrous sodium sulfate 59.4 Sodium hydrogen carbonate 7.5 Sodium carbonate
7.5 spruce extract
0.5 coloring agent
0.1 carboquine methylcellulose sodium 0.05% aqueous solution IO・0
Fragrance: An appropriate amount of citric acid as the granule core, an aqueous sodium carboxymethyl cellulose solution as the binder, the first surface layer as anhydrous sodium sulfate, and the second surface layer as carbonic acid mixed with spruce extract, sodium bicarbonate, and sodium carbonate. As a salt component layer and a third surface layer, a mixture layer of colorant and fragrance is sequentially sprayed and dried to form granules with an average particle diameter of 1.5 mm, which has a multilayer structure of 4 layers including granule cores. A desired foaming bath agent was obtained.

Example 2 Ingredients Weight % Granular Sodium Sesquicarbonate 20.0 Anhydrous Sodium Sulfate 40.0 Succinic Acid
28.90-Zumary extract
0.5 liquid lanolin
0.5 coloring agent
0.1 Pullulan 30% aqueous solution 1
0.0 sodium sesquicarbonate as a granule core, a pullulan aqueous solution as a binder, and a mixture of liquid lanolin and anhydrous sodium sulfate in an amount of 1/10 as a first surface layer,
coated. Then, an organic acid component layer of succinic acid is coated as a second surface layer, and a mixture of remaining anhydrous sodium sulfate, rosemary extract and coloring agent is coated as a third surface layer, and dried. Average particle size 1. having desired multilayer structure. A granular foaming bath agent of Omm was obtained.

The foaming bath agents obtained in Example 1 and Example 2, powders using the same ingredients, and granules made by conventional granulation technology (
Standards 1 and 2) were tested for stability. The results are shown in Table 1. All samples were sealed and packaged with aluminum laminated film, stored at a temperature of 40° C. and a humidity of 75%, and stability was tested by checking for expansion of the container.

Table 1 ○: No change at all △: Packaging container slightly expanded ×: Packaging container expands significantly Note that no change was observed even after being left for 50 days.

When the samples of Example 1 and Example 2 were thrown into a bath, good foaming properties were obtained and a pine surge effect was produced on the skin.

Claims (3)

[Claims] (1) Granules with a multilayer structure consisting of a granule core and two or more surface layers covering the surface of the granule, in which an organic acid component and a carbonate component are interposed through one or more bath agent component layers. A foaming bath agent characterized in that foaming bath additives are individually arranged. (2) The foaming bath agent according to item (1) above, wherein the organic acid component is arranged in the granule core, and a carbonate component layer is provided on the surface of the granule core via a bath agent component layer. (3) The foaming bath agent according to item (1) above, wherein the carbonate component is arranged in the granule core, and an organic acid component layer is provided on the surface of the granule core via a bath agent component layer.