Method of using foamable compression molded product and bathing agent set

Abstract

To provide a foamable compression molded product by which a plurality of aromas can be individually enjoyed, and furthermore aroma in which a plurality of aromas are mixed can be also enjoyed.SOLUTION: A method of using a foamable compression molded product in which at least two kinds of foamable compression molded products having different aromas from each other and foaming time of 4 to 40 minutes, are used, and a bathing agent set includes at least two kinds of foamable compression molded products having different aromas from each other and foaming time of 4 to 40 minutes.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a method of using a foaming compression molded product and a bath agent set.

Background Art

[0002] In recent years, in order to give the bath water an aroma and a color tone to make the bathing mood refreshing, to activate metabolism to improve cold sensitivity, etc., and to obtain a hot bath effect, it has become common to add a bath agent to the bath water, and various forms such as bath salts, tablets, and liquid agents are sold. Among them, bath agents containing a carbon dioxide gas generating substance obtained by combining a carbonate and an acid are expected to have effects such as promoting blood circulation and recovering fatigue because the bubbles of carbon dioxide gas generated in the bath water rub the skin surface and the carbon dioxide gas dissolved in the bath water dilates capillaries to enhance metabolism. In addition, as one of the important effects expected of bath agents, there is an aromatherapy effect by fragrance, and the number of people seeking healing and enjoyment in bathing is increasing. In order to enhance these effects during bathing, development regarding fragrance and color is underway. For example, a bath agent having a two-layer structure has been proposed for enjoying fragrance and color (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, since the conventional bath agents have a high foaming speed, the diffusion speed of the fragrance is high, and the fragrance components are likely to fill the space in the bath water and the bathroom. Further, in the preparation described in Patent Document 1, although it is possible to enjoy the fragrance of the mixed state of the first fragrance of the internal composition and the second fragrance of the external composition or the fragrance of the second fragrance alone, the problem was that the fragrance of the first fragrance alone could not be enjoyed. Therefore, the present invention aims to provide a method for using a foamed compression molded product and a bath additive set that allows users to enjoy multiple fragrances individually, as well as a mixture of multiple fragrances. [Means for solving the problem]

[0005] The inventors of this invention conducted extensive research to solve the above problems and, as a result, discovered that by using at least two types of foamed compression molded products with different fragrances and foaming times of 4 to 40 minutes, the diffusion rate of fragrances becomes slower compared to conventional foamed compression molded products, allowing users to enjoy multiple fragrances individually, and even enjoy fragrances that are a mixture of multiple fragrances. This led to the completion of the present invention. In other words, the present invention is as follows:

[0006] [1] A method for using foamed compression molded products, comprising using at least two foamed compression molded products with different aromas and foaming times of 4 to 40 minutes. [2] A method for using the foamed compression molded product according to [1], wherein the foaming force of the foamed compression molded product is 0.01 to 2.0 mL / s. [3] The foamed compression molded product contains a fragrance component with a vapor pressure of 0.00002 to 120 mmHg, and the method of using the foamed compression molded product according to [1] or [2]. [4] A method for using the foamed compression molded article according to any one of [1] to [3], wherein the foamed compression molded article contains 10 to 60% by mass of sodium bicarbonate, 5 to 25% by mass of sodium carbonate, and 5 to 20% by mass of an organic acid. [5] A method for using the foamed compression molded product according to any one of [1] to [4], wherein the foamed compression molded product is used as a bath additive. [6] A bath additive set containing at least two effervescent compressed molded products with different scents, each with a foaming time of 4 to 40 minutes. [Effects of the Invention]

[0007] According to the present invention, by using at least two types of foaming compressed molded products with different scents and foaming times of 4 to 40 minutes, it is possible to enjoy multiple scents individually, and furthermore, to enjoy a mixed scent of multiple scents, providing a method for using foaming compressed molded products and a bath additive set. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a schematic diagram illustrating the test methods of the embodiments and comparative examples of the present invention. [Modes for carrying out the invention]

[0009] The following describes in detail how to use the foamed compression molded product according to an embodiment of the present invention.

[0010] [Method of using foamed compression molded products] The method of using the foamed compression molded product according to the embodiment of the present invention involves using at least two foamed compression molded products with different aromas and foaming times of 4 to 40 minutes. The foamed compression molded product according to the embodiment of the present invention can be used as a bath additive.

[0011] Conventional bath additives use one type of bath additive per use, whereas in the embodiment of the present invention, by using at least two types of effervescent compressed molded products with different fragrances and effervescence times of 4 to 40 minutes per use, the user can enjoy multiple fragrances, including the individual fragrances and the fragrance of each fragrance mixed together. If the effervescence time is less than 4 minutes, the fragrance diffuses quickly due to the effervescence, and even if multiple scented bath salts are used, the fragrances quickly mix together, making it difficult to fully enjoy each individual scent. On the other hand, if the effervescence time exceeds 40 minutes, the effect of fragrance diffusion due to effervescence is low, making it impossible to enjoy not only each individual scent but also the mixed fragrance.

[0012] In the method of using the foamed compression molded product according to the embodiment of the present invention, it is necessary to use at least two foamed compression molded products that have different scents from each other. For example, a foamed compression molded product (A) and a foamed compression molded product (B) that has a different scent from foamed compression molded product (A) can be used, and other foamed compression molded products may also be used.

[0013] In the following explanation, we may use as an example cases the use of foamed compression molded product (A) and foamed compression molded product (B) which has a different fragrance from foamed compression molded product (A), but the present invention is not limited to these embodiments.

[0014] In the method of using a foamed compression molded product according to the embodiment of the present invention, the foaming time of the foamed compression molded product must be 4 to 40 minutes. Here, the foaming time of a foamed compression molded product refers to the time after the foamed compression molded product is placed in water at 41°C during which foaming is visible. Specifically, the foaming time can be measured by the method described in the examples.

[0015] The foaming time for the foamed compression molded product is preferably 4 minutes or more, more preferably 4.5 minutes or more, and even more preferably 6 minutes or more. It is also preferably 40 minutes or less, more preferably 30 minutes or less, and even more preferably 20 minutes or less.

[0016] The general foaming time of conventional bath agents is 2 to 3.5 minutes. For example, when a foaming compression molded product is used as a bath agent, the foaming speed is fast when it is put into water at a temperature of 38 to 42°C, and the fragrance components are likely to fill the space in the water or the bathroom. As a result, even if a plurality of bath agents are used per use, the scents quickly mix, and it is impossible to fully enjoy each individual scent. However, in the method of using the foaming compression molded product according to the embodiment of the present invention, since at least two kinds of foaming compression molded products having different scents and a foaming time of 4 to 40 minutes are used, the components of each foaming compression molded product are gradually volatilized, and each individual scent can be enjoyed. In addition, a new scent mixed with each scent can be enjoyed, and as a result, at least two kinds of scents can be fully enjoyed.

[0017] In the method of using the foaming compression molded product according to the embodiment of the present invention, it is necessary to use at least two kinds of foaming compression molded products having different scents, but those having different foaming times as well as different scents may be used.

[0018] When using foaming compression molded products with different foaming times, for example, the foaming time of the foaming compression molded product (A) may be 4 minutes to 40 minutes (preferably 4.5 minutes to 30 minutes, more preferably 6 minutes to 20 minutes), and the foaming time of the foaming compression molded product (B) may be 4 minutes to 40 minutes (preferably 4.5 minutes to 30 minutes, more preferably 6 minutes to 20 minutes).

[0019] In the method of using the foaming compression molded product according to the embodiment of the present invention, the foaming amount of the foaming compression molded product is preferably 20 to 300 mL. In the foaming compression molded product according to the embodiment of the present invention, setting the foaming amount to 20 to 300 mL is preferable because the components of each foaming compression molded product are gradually volatilized more easily. Here, the foaming amount of a foamed compression molded product refers to the amount of carbon dioxide generated when one 45g foamed tablet, compressed in a tablet press, is placed in a cylindrical metal mesh basket (10cm in diameter x 10cm in height), and this basket is placed in 200L of 41°C bathwater (bathtub internal dimensions: depth 68cm, width 46cm, length 110cm). A funnel is placed just above the top surface of the metal mesh basket in the water, and all the generated carbon dioxide gas is collected in a graduated cylinder.

[0020] The foaming amount of the foamed compression molded product is preferably 20 mL or more, more preferably 50 mL or more, even more preferably 100 mL or more, and even more preferably 150 mL or more. Furthermore, it is preferably 300 mL or less, more preferably 280 mL or less, even more preferably 270 mL or less, and even more preferably 260 mL or less. Furthermore, the ratio of the amount of fragrance contained in the foamed compression molded product to the amount of foaming, known as foaming amount (mL) / fragrance (g), is not particularly limited, but is preferably 45 to 1500 mL / g, preferably 65 to 1450 mL / g, and more preferably 70 to 1100 mL / g. The ratio of the amount of fragrance to the amount of effervescence, known as effervescence amount (mL) / fragrance (g), represents the amount of effervescence appropriate for releasing the fragrance from 1g of fragrance. If the effervescence amount (mL) / fragrance (g) falls within the above range, the fragrance can be sufficiently diffused. In the method of using the foamed compression molded product according to the embodiment of the present invention, it is necessary to use at least two foamed compression molded products that have different scents from each other, but it is also possible to use products that differ not only in scent but also in foaming amount.

[0021] When using foamed compression molded products with different foaming amounts, for example, the foaming amount of foamed compression molded product (A) may be 20 to 300 mL (preferably 50 to 280 mL, more preferably 100 to 270 mL), and the foaming amount of foamed compression molded product (B) may be 20 to 300 mL (preferably 50 to 280 mL, more preferably 100 to 270 mL), and foamed compression molded products with different foaming amounts may be used. For example, when a foamed compression molded product was used as a bath additive, it foamed up a lot when placed in water at a temperature of 38-42°C, and the fragrance components easily filled the water and the bathroom.

[0022] In the method of using the foamed compression molded product according to the embodiment of the present invention, it is preferable that the foaming force of the foamed compression molded product is 0.01 to 2.0 mL / s. This is preferable because the foaming force of 0.01 to 2.0 mL / s allows each component of the foamed compression molded product to volatilize more easily. Here, the foaming force of a foamed compression molded product is calculated using the following formula. [Calculation formula] Effervescence force (mL / s) = Amount of effervescence (mL) ÷ Effervescence time of effervescent tablet (s)

[0023] The foaming force of the foamed compression molded product is more preferably 0.1 mL / s or more, even more preferably 0.4 mL / s or more, and even more preferably 0.7 mL / s or more. Furthermore, it is more preferably 1.8 mL / s or less, even more preferably 1.6 mL / s or less, and even more preferably 1.4 mL / s or less. When using foamed compression molded articles with different foaming strengths, for example, the foaming strength of foamed compression molded article (A) may be set to 0.01 to 2.0 mL / s (preferably 0.1 to 1.0 mL / s, more preferably 0.5 to 1.4 mL / s), and the foaming strength of foamed compression molded article (B) may be set to 0.01 to 2.0 mL / s (preferably 0.1 to 1.0 mL / s, more preferably 0.5 to 1.4 mL / s), and foamed compression molded articles with different foaming strengths may be used.

[0024] The foaming time and amount of foamed compression molded products can be adjusted by the components and amounts used in the product. Furthermore, the foaming time can also be adjusted by the shape and molding conditions of the product. For example, if the foamed compression molded product is a tablet, the foaming time can be adjusted by the pressure of the tablet press used for molding.

[0025] Examples of components used in foamed compression molded products include fragrances, carbonates, and organic acids.

[0026] When using at least two types of foamed compression molded products as bath additives, it is preferable to add each to the bathwater (e.g., water at 38-42°C). The timing of adding them may or may not be simultaneous, but simultaneous is preferable. For example, it is preferable to add foamed compression molded product (A) and foamed compression molded product (B) at the same time, as this allows you to enjoy the individual scents of each before enjoying the mixed scent. Furthermore, when adding at least two types of foamed compression molded products to bathwater, it is preferable to add them at a distance from each other. This allows for a longer enjoyment of the individual fragrances of each product. The above distance can be adjusted as appropriate depending on the size of the bathtub, but for example, it is preferable to leave a gap of 60 cm or more, and more preferable to leave a gap of 70 cm or more.

[0027] Applications of the foamed compression molded product of the present invention include, for example, bath additives, detergents, fragrances, and deodorizers, with bath additives being preferred.

[0028] The following describes the components that may be contained in the foamed compression molded product of the present invention.

[0029] [Fragrance] The foamed compression molded product used in the embodiments of the present invention preferably contains a fragrance. The fragrance used in the present invention consists of at least one of the following components: natural fragrances, synthetic fragrances, fragrance components, and essential oil components.

[0030] As natural fragrances, synthetic fragrances, fragrance components, and essential oil components, conventionally known ones can be used at will, for example, peppermint, eucalyptus, lemon, verbena, citronella, cajeput, salvia, thyme, clove, rosemary, hyssop, jasmine, chamomile, neroli, mugwort, perilla, marjoram, laurel, juniper berry, nutmeg, ginger, onion, garlic, lavender, bergamot, clary sage, peppermint, basil, rose, petitgrain, cinnamon, mace, citral, citronellol, borneol, linalool, geraniol, terpineol, nerol, rhozinol, orange, artemisia, camphor, menthol, cineole, eugenol, hydroxycitronellal, sandalwood, costus, labdanum, amber, musk, pinene, myrcene, terpinene, ca Essential oils such as phenphene, limonene, methyl salicylate, Atractylodes macrocephala, Atractylodes macrocephala, Valerian, Schizonepeta tenuifolia, Magnolia bark, Cnidium officinale, Spruce, Angelica acutiloba, Zingiber officinale, Peony, Phellodendron bark, Scutellaria baicalensis, Gardenia fruit, Cinnamon bark, Ginseng, Poria cocos, Poria cocos, Acorus calamus, Artemisia princeps, Schisandra chinensis, Angelica dahurica, Houttuynia cordata, Fennel, Citrus unshiu peel, Chamomile, Grapefruit, etc., amyl nitrite, trimethylcyclohexanol, allyl sulfide, nonyl alcohol, decyl alcohol, phenylethyl alcohol, methyl carbonate, ethyl carbonate, phenyl acetate, guaiacol, indole, cresol, thiophenol, p-dichlorobenzene, p-methylquinoline, isoquinoline, pyridine, absinthe oil acetate, linalyl acetate, terpinyl acetate, phenethyl acetate, isobornyl acetate, acetate esters, etc. "Perfume" "Flavor Materials of Natural Origin," Steffen Arctander, Allured Pub.Co. (1960), "Encyclopedia of Fragrances," edited by the Japan Fragrance Association, Asakura Shoten (1989), "Flower oils and Floral Compounds In Perfumery," Danute Pajaujis Anonis, Allured Pub.Co. (1993), "Perfume and Flavor Chemicals (aroma chemicals)," Vols.Examples of natural fragrances, synthetic fragrances, fragrance components, and essential oil components are listed in "I and II," Steffen Arctander, Allured Pub. Co. (1994), "Basic Knowledge of Fragrances and Perfumery," edited by Motoki Nakajima, Sangyo Tosho (1995), "Synthetic Fragrances: Chemistry and Product Knowledge," by Genichi Indo, Kagaku Kogyo Nippo-sha (1996), and "Encyclopedia of Fragrances," edited by Mitsukatsu Tanigai, Maruzen (2005). The above fragrances may be used individually or in any combination of two or more.

[0031] In the foamed compression molded article used in the embodiments of the present invention, the foamed compression molded article preferably contains a fragrance component with a vapor pressure (hereinafter sometimes simply referred to as vapor pressure) of 0.00002 to 120 mmHg at room temperature, more preferably 0.001 to 120 mmHg, and even more preferably 0.1 to 120 mmHg. In the present invention, room temperature means 20 to 25°C. Generally, fragrance components with a vapor pressure of 0.00002 to 120 mmHg at room temperature (e.g., 20 to 25°C) tend to evaporate easily from bathwater. Therefore, in conventional bath additives, the short foaming time means that when added to bathwater, the fragrance evaporates more easily, and even if two tablets with different fragrances are added, the scents quickly mix, making it impossible to enjoy each fragrance individually. However, the foaming compression molded product used in the embodiment of the present invention has a foaming time of 4 to 40 minutes, so even when using fragrance components with a vapor pressure of 0.00002 to 120 mmHg, the fragrance components can be continuously evaporated. For example, when two tablets with different fragrances are added, the scents do not immediately mix, allowing each fragrance to be enjoyed individually.

[0032] The fragrance component used in the foamed compression molded product used in the embodiment of the present invention may have a vapor pressure within the above range at room temperature (20-25°C). That is, the vapor pressure at any temperature between 20°C and 25°C may be within the range of 0.00002 to 120 mmHg. For example, the vapor pressure at 20°C may be within the above range, or the vapor pressure at 25°C may be within the above range.

[0033] Examples of fragrance components with a vapor pressure of 0.00002 to 120 mmHg include limonene, pinene, myrcene, terpinene, camphene, geraniol, citronellol, linalool, terpineol, linalyl acetate, terpinyl acetate, phenethyl acetate, isobornyl acetate, isoamyl acetate, amyl acetate, ethyl butyrate, ethyl vanillin, α-hexyl cinnamaldehyde, ethyl acetate, tonalide, nerol, hexyl acetate, cineole, decanal, camphor, eugenol, borneol, indole, cresol, benzyl benzoate, and decano. Examples include butyl acetate, terpineol, methyl dihydrojasmonate, γ-decalactone, δ-decalactone, γ-dodecalactone, δ-dodecalactone, allylheptanoate, styraryl acetate, citral, galaxolide, methyl dihydrojasmonate, isocyclocitral, bornyl acetate, butylcyclohexyl acetate, citronellol, phenethyl acetate, triethyl citrate, vanillin, menthone, etc. One or more of these can be used in combination, and they may also be used in combination with fragrance components whose vapor pressure is outside the above range. Examples of fragrances used in embodiments of the present invention include fragrances that combine fragrance components with a vapor pressure of 0.00002 to 120 mmHg to produce fragrances exhibiting scents such as soda, banana, orange juice, vanilla, milk, apple juice, chocolate, and strawberry. More specifically, examples include banana fragrances containing isoamyl acetate (28.0 mmHg / 20℃) and amyl acetate (3.93 mmHg / 25℃), orange juice fragrances containing linalool (0.05 mmHg / 20℃), and vanilla fragrances containing ethyl vanillin (0.001 mmHg / 20℃) and vanillin (0.00194 mmHg / 25℃). However, the fragrances are not limited to these.

[0034] The vapor pressures of the above fragrance components at 20°C or 25°C are shown in Table 1 below.

[0035] [Table 1]

[0036] Furthermore, in the embodiments of the present invention, it is necessary to use at least two types of foamed compression molded products that have different fragrances from each other, so it is preferable to use different fragrances for each of the at least two types of foamed compression molded products. For example, to give foamed compressed molded product (A) and foamed compressed molded product (B) different scents, it is preferable to use different fragrances, such as a first fragrance and a second fragrance, for foamed compressed molded product (A) and foamed compressed molded product (B). In this case, it is preferable to avoid using first fragrances used in foamed compressed molded product (A) and second fragrances used in foamed compressed molded product (B) that would produce an off-odor when mixed together. For example, a combination of the first and second fragrances is: A combination of soda flavoring as the primary flavoring and banana flavoring as the secondary flavoring. A combination of soda flavoring as the primary flavoring and orange juice flavoring as the secondary flavoring. A combination of soda flavoring as the primary flavoring and vanilla flavoring as the secondary flavoring. A combination of soda flavoring as the primary flavoring and milk flavoring as the secondary flavoring. A combination of soda flavoring as the primary flavoring and apple juice flavoring as the secondary flavoring. A combination of soda flavoring as the primary flavoring and chocolate flavoring as the secondary flavoring. A combination of soda flavoring as the primary flavoring and strawberry flavoring as the secondary flavoring. The combination of banana flavoring as the first flavoring and orange juice flavoring as the second flavoring, A combination of banana flavoring as the primary flavoring and vanilla flavoring as the secondary flavoring. A combination of banana flavoring as the first flavoring and milk flavoring as the second flavoring. A combination of banana flavoring as the primary flavoring and apple juice flavoring as the secondary flavoring. A combination of banana flavoring as the primary flavoring and chocolate flavoring as the secondary flavoring. A combination of banana flavor as the primary flavoring and strawberry flavor as the secondary flavoring. A combination of orange juice flavoring as the first flavoring and vanilla flavoring as the second flavoring. A combination of orange juice flavoring as the first flavoring and milk flavoring as the second flavoring. A combination of orange juice flavoring as the first flavoring and apple juice flavoring as the second flavoring, a combination of orange juice flavoring as the first flavoring and chocolate flavoring as the second flavoring, a combination of orange juice flavoring as the first flavoring and strawberry flavoring as the second flavoring, a combination of vanilla flavoring as the first flavoring and milk flavoring as the second flavoring, a combination of vanilla flavoring as the first flavoring and apple juice flavoring as the second flavoring, a combination of vanilla flavoring as the first flavoring and chocolate flavoring as the second flavoring, a combination of vanilla flavoring as the first flavoring and the second Examples of flavor combinations include a combination of strawberry flavor as the second flavoring, a combination of milk flavor as the first flavoring and apple juice flavor as the second flavoring, a combination of milk flavor as the first flavoring and chocolate flavor as the second flavoring, a combination of milk flavor as the first flavoring and strawberry flavor as the second flavoring, a combination of apple juice flavor as the first flavoring and chocolate flavor as the second flavoring, a combination of apple juice flavor as the first flavoring and strawberry flavor as the second flavoring, a combination of chocolate flavor as the first flavoring and strawberry flavor as the second flavoring, and so on.

[0037] The foamed compression molded articles used in the embodiments of the present invention preferably contain 0.01 to 2.0% by mass of the above-mentioned fragrance, and more preferably 0.1 to 1.5% by mass, per 100% by mass of the foamed compression molded article.

[0038] The fragrance in this invention may contain any fragrance solvent. In this case, the fragrance in this invention includes the above-mentioned fragrance solvent. Examples of the above-mentioned solvents for fragrances include purified water, deionized water, alcohols such as ethanol, propanol, benzyl alcohol, 3-methyl-4-methoxybutanol, and 3-methoxy-3-methyl-1-butanol, polyhydric alcohols such as ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, glycerin, 1,3-butanediol, and butylene glycol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol monoisobutyl ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether, and propylene glycol. Examples of glycol ethers include dimethyl ether, dipropylene glycol monomethyl ether, tripylene glycol monomethyl ether, tripylene glycol monobutyl ether, propylene glycol monopropyl ether, dipropylene glycol monopropyl ether, propylene glycol monobutyl ether, propylene glycol-tert-butyl ether, dipropylene glycol monobutyl ether, dipropylene glycol dimethyl ether, glycol ethers such as phenyl carbitol, phenyl cellosolve, and benzyl carbitol; paraffins such as n-paraffin, paraffin (solid), isoparaffin, and liquid paraffin; esters such as diethyl phthalate, benzyl benzoate, triethyl citrate, and isopropyl myristate; and other examples include triethyl citrate, N-methylpyrrolidone, and propylene carbonate. These can be used individually or in combination of two or more.

[0039] [Organic acid] The foamed compression molded product used in the embodiments of the present invention preferably contains an organic acid. The organic acid used in the embodiments of the present invention is a component that reacts with the carbonate described later to generate carbon dioxide. Examples of organic acids include succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, benzoic acid, citric acid, and salicylic acid. From the viewpoint of ease of handling (low hygroscopicity) and economic efficiency, succinic acid or fumaric acid is preferred. These organic acids can be used individually or in appropriate combinations of two or more.

[0040] Furthermore, from the viewpoint of tableting properties, granulation, solubility, and oil absorption capacity, the particle size (average particle size d50) of the organic acid is preferably 0.01 to 5 mm, and more preferably 0.05 to 0.5 mm. When the particle size of the organic acid is within the above range, there are no undissolved particles in the liquid, and it is preferable because it can efficiently foam and sufficiently supply carbon dioxide gas to the liquid.

[0041] If the particle size is larger than those shown above, it is preferable to crush it beforehand until it reaches a suitable particle size. Examples of crushers that can be used for crushing include impact crushers such as hammer crushers, atomizers, impact crushers such as pin mills, and shear crushers such as flash mills. These may be operated in a single stage or in a multi-stage operation using the same or different types of crushers.

[0042] The content of organic acids in 100% by mass of the foamed compression molded product is preferably 5 to 20% by mass. If the organic acid content is 5% by mass or more, sufficient carbon dioxide can be generated when it reacts with carbonates to produce carbon dioxide. The organic acid content is more preferably 8% by mass or more, and even more preferably 10% by mass or more. Furthermore, from the viewpoint of keeping the foaming time within a desired range, the organic acid content is preferably 18% by mass or less, more preferably 16% by mass or less, and even more preferably 15% by mass or less.

[0043] [Carbonates] The foamed compression molded product used in the embodiments of the present invention preferably contains a carbonate. The carbonate used in this invention is a component that generates carbon dioxide gas through a reaction with the above-mentioned organic acid.

[0044] Any carbonate that reacts with an organic acid in a liquid to produce carbon dioxide gas can be used, and examples include sodium carbonate, sodium bicarbonate, sodium sesquicarbonate, calcium carbonate, potassium carbonate, magnesium carbonate, and heavy magnesium carbonate. One or more of these can be used. Among these, sodium carbonate or sodium bicarbonate is preferred, and sodium carbonate and sodium bicarbonate are more preferred.

[0045] The carbonate content in 100% by mass of the foamed compression molded product is preferably 20 to 90% by mass. If the carbonate content is 20% by mass or more, sufficient carbon dioxide can be generated when it reacts with organic acids to produce carbon dioxide. The carbonate content is more preferably 30% by mass or more, and even more preferably 40% by mass or more. Furthermore, from the viewpoint of keeping the foaming time within a desired range, the carbonate content is preferably 80% by mass or less, more preferably 75% by mass or less, and even more preferably 70% by mass or less.

[0046] The particle size of the carbonate (average particle size d50) is preferably 0.01 to 5 mm, and more preferably 0.05 to 0.5 mm, from the viewpoint of bubble fineness, bubble duration, and sedimentation properties.

[0047] The foamed compression molded article used in the embodiments of the present invention preferably contains 10 to 60% by mass of sodium bicarbonate, 5 to 25% by mass of sodium carbonate, and 5 to 20% by mass of an organic acid. By setting the sodium bicarbonate, sodium carbonate, and organic acid within the above ranges, it becomes easier to set the foaming time of the foamed compression molded article to 4 to 40 minutes.

[0048] [Disintegrating agent] The foamed compression molded product used in the embodiments of the present invention preferably contains a disintegration aid. The foamed compression molded product used in the embodiments of the present invention contains a disintegration aid, thereby improving the disintegration properties of the foamed compression molded product and allowing for adjustment of the foaming time. Sugars and inorganic salts are preferably used as disintegration aids. Examples of sugars include glucose, fructose, lactose, maltose, sucrose, dextrin, maltodextrin, cyclodextrin, maltose, fructose, and trehalose. Inorganic salts include any components other than the carbonates mentioned above, such as chlorides like sodium chloride, potassium chloride, and ammonium chloride; sulfates like sodium sulfate, aluminum sulfate, iron sulfate, potassium aluminum sulfate, sodium thiosulfate, calcium thiosulfate, potassium thiosulfate, and sodium hyposulfite; nitrates like sodium nitrate, potassium nitrate, and calcium nitrate; phosphates like sodium phosphate, sodium polyphosphate, and calcium hydrogen phosphate; silicates like calcium silicate and magnesium silicate; sulfides like sulfur, calcium sulfide, sodium sulfide, potassium sulfide, ammonium sulfide, barium sulfide, zinc sulfide, tin sulfide, antimony sulfide, iron sulfide, and phosphorus sulfide; silicon compounds like anhydrous silicic acid, metasilicic acid, mica powder, and neutral clay; hydroxides like sodium hydroxide and calcium hydroxide; and borax, boric acid, calcium oxide, potassium bromide, potassium permanganate, artificial callus salts, mineral springs, mineral sand, and mineral deposits. These inorganic salts can also be included as bulk adjusters, formulation aids, and formulation stabilizers.

[0049] The content of the disintegrant in 100% by mass of the foamed compression molded product is preferably 10% by mass or more, more preferably 12.5% ​​by mass or more, and even more preferably 15% by mass or more, from the viewpoint of excellent moldability of tablets with good shape retention and good solubility. Furthermore, it is preferably 60% by mass or less, more preferably 40% by mass or less, and even more preferably 20% by mass or less.

[0050] [Other ingredients] The foamed compression molded article used in the embodiments of the present invention may contain other components as appropriate, as long as they can solve the problems of the present invention, even if they are not listed above. Examples of other components include lubricants, opacifiers, humectants, surfactants, enzymes, dyes, pigments / minerals, vitamins and their derivatives, anti-fading agents, pH adjusters, disinfectants, etc. These other components may have overlapping uses.

[0051] (Clouding agent) In embodiments of the present invention, a clouding agent can be used. The foamed compression molded articles used in the embodiments of the present invention may or may not contain a whitening agent. Alternatively, one of at least two foamed compression molded articles with different scents may contain a whitening agent, while the other does not. For example, foamed compression molded article (A) may contain a whitening agent, while foamed compression molded article (B) may not contain a whitening agent.

[0052] Examples of opacifying agents used in embodiments of the present invention include titanium dioxide, calcium oxide, paraffin, clay, kaolin, and bentonite.

[0053] Furthermore, from the viewpoint of preventing a decrease in the hardness of the foamed compression molded product, it is preferable to contain 10.0% by mass or less of the opacifying agent per 100% by mass of the foamed compression molded product used in the embodiments of the present invention, more preferably 5.0% by mass or less, and even more preferably 3.0% by mass or less.

[0054] (Polyalkylene glycol) The foamed compression molded articles used in embodiments of the present invention may or may not contain polyalkylene glycol. In the foamed compression molded articles, polyalkylene glycol can be used as a binder to adjust the foaming time of the foamed compression molded article. For example, the foaming time can be extended by increasing the amount of polyalkylene glycol added. The molecular weight of the polyalkylene glycol is preferably between 100 and 20,000, more preferably between 400 and 15,000, and even more preferably between 2,000 and 10,000. Specifically, polyethylene glycol, polypropylene glycol, etc., are used, with polyethylene glycol being particularly preferred. In addition, one or more types of various polyalkylene glycols can be used in combination.

[0055] The foamed compression molded article used in the embodiments of the present invention preferably contains 0.1 to 10.0% by mass of the above-mentioned polyalkylene glycol, and more preferably 1.0 to 5.0% by mass, based on 100% by mass of the foamed compression molded article. By setting it within this range, it becomes easier to control the foaming time to 4 to 40 minutes.

[0056] (others) Examples of lubricants include talc, kaolin, magnesium stearate, calcium stearate, stearic acid, sucrose fatty acid ester, and silicone oil, with sucrose fatty acid ester being preferred. In the foamed compression molded article according to the embodiment of the present invention, the foaming time of the foamed compression molded article can be adjusted by the amount of lubricant added. For example, increasing the amount of lubricant can lengthen the foaming time. From the viewpoint of adjusting the foaming time of the foamed compression molded article, the lubricant is preferably contained in an amount of 0.05 to 1.0% by mass, and more preferably 0.1 to 0.5% by mass, per 100% by mass of the foamed compression molded article. By setting the amount within the above range, it becomes easier to control the foaming time of the foamed compression molded article to 4 to 40 minutes.

[0057] Examples of moisturizers include ceramides such as ceramides, ceramide derivatives, and ceramide-like substances; organic acid salts such as sodium lactate, disodium tartrate, sodium pyrrolidone carboxylate, and disodium glutamate; mucopolysaccharides such as chondroitin sulfate and hyaluronic acid; plant collagen obtained from soybeans, corn, and carrots; marine collagen obtained from salmon, pufferfish, tuna, and flounder; fatty acid esters such as isopropyl myristate and isopropyl palmitate; shea butter, squalane, placenta, arbutin, casein, silk, honey, jojoba oil, ginger extract, kudzu extract, and cationized cellulose.

[0058] Examples of surfactants include nonionic surfactants such as polyoxyethylene alkyl ethers, polyoxyethylene hydrogenated castor oil, polyoxyethylene polyoxypropylene copolymers, polyoxyethylene fatty acid esters, and sorbitan fatty acid esters; anionic surfactants such as fatty acid esters for soap bases, sodium α-olefin sulfonate, sodium alkyl glucoside sulfate, sodium lauryl sulfate, sodium polyoxyethylene lauryl sulfate, and sodium coconut oil fatty acid methyl taurate; amphoteric surfactants such as alkyl betaine, alkylamidopropyl betaine, alkylamidosulfobetaine, and 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine; and cationic surfactants such as alkylamine salts and quaternary ammonium salts.

[0059] Examples of enzymes include trypsin, α-chymotrypsin, bromelain, papain, protease, productase, serrathiopeptidase, lysozyme, pepsin, and ficin.

[0060] Examples of pigments include legally designated pigments such as Blue No. 1, Blue No. 2, Red No. 102, Red No. 106, Red No. 227, Red No. 230 (1), Yellow No. 4, Yellow No. 5, Yellow No. 202 (1), Green No. 3, Green No. 201, Green No. 204, Orange No. 205, as well as chlorophyll, riboflavin, annatto, anthocyanins, and the like. Different pigments may be used for at least two types of foamed compression molded products used in embodiments of the present invention. By using different pigments, it is possible to enjoy not only the color of the bathwater individually, but also the color of the bathwater after mixing. In other words, it is possible to enjoy not only the change in fragrance, but also the change in the color of the bathwater. For example, to make foamed compression molded product (A) and foamed compression molded product (B) different colors from each other, it is preferable to use different dyes, such as a first dye and a second dye, for foamed compression molded product (A) and foamed compression molded product (B).

[0061] Examples of pigments and minerals include talc, clay, kaolin, red iron oxide, yellow iron oxide, mica, zinc oxide, calcium silicate, magnesium silicate, bentonite, zeolite, anhydrous silicic acid, metasilicic acid, acid clay, and their coated granules. These can also be included as formulation aids.

[0062] Examples of vitamins and their derivatives include vitamin A, vitamin B, vitamin C, vitamin D, vitamin E, vitamin F, vitamin H, pantothenic acid, nicotinic acid or its derivatives, vitamin E nicotinic acid ester, tocopherol acetate, sodium ascorbate, and the like.

[0063] Examples of color-fastening agents include amino acids such as glycine, alanine, and glutamic acid; salicylic acid and its salts.

[0064] Examples of pH adjusting agents include disodium hydrogen phosphate, trisodium phosphate, disodium hydrogen citrate, and trisodium citrate.

[0065] Examples of disinfectants include isopropylmethylphenol, triclosan, dichloroisocyanuric acid, silver zeolite, cetylpyridinium chloride, benzalkonium chloride, benzethonium chloride, chlorhexidine chloride, hinokitiol, phenol, glycyrrhizinate and its derivatives.

[0066] The foamed compression molded product used in the embodiments of the present invention can be manufactured by mixing the above components and compressing them. When compressing, the method is not particularly limited as long as a foamed compression molded product, such as briquettes or tablets, can be obtained, and well-known briquetting machines and tablet presses can be used. Well-known briquetting machines include, for example, the Briquetting Machine (manufactured by Shinto Kogyo Co., Ltd.). A tablet press is a device that fills a die with a powder mixture and compresses and shapes it between a lower punch and an upper punch. Tablet presses include single-shot presses, in which a pair of upper and lower punches move up and down within a single die to compress the mixture, and rotary presses, in which dies are embedded at equal intervals around the outer circumference of a horizontally rotating turntable, and a series of operations—filling, compressing, and discharging—are performed continuously as the turntable rotates. As well-known tablet presses, Shiga Seisakusho Co., Ltd. tablets can be used as single-shot presses, and Kikusui Seisakusho Co., Ltd. tablets can be used as rotary presses. Alternatively, a single-shot tablet press can be performed using a die set matched to the weight of the tablet to be produced, and a hydraulic pump from, for example, Riken Kiki Co., Ltd. or Labonect Co., Ltd., to produce the foamed compression molded product used in the embodiment of the present invention.

[0067] When using a briquetting machine, the particle size of the briquettes is preferably 10 mm or less, more preferably 7 mm or less, and even more preferably 5 mm or less, from the viewpoint of briquette solubility. The shape of the briquettes is not particularly limited, but briquette-shaped, almond-shaped, pillow-shaped, finger-shaped, lens-shaped, etc. are preferred.

[0068] When using a tablet press, the size of the tablets is preferably such that the diameter (or the length of one side in the case of a polygon) is 80 mm or less for cylindrical tablets, more preferably 70 mm or less, more preferably 10 mm or more, and even more preferably 30 mm or more. The thickness of the tablets is preferably 20 mm or less, more preferably 17 mm or less, more preferably 5 mm or more, more preferably 8 mm or more, and even more preferably 10 mm or more. The shape of the tablets is not particularly limited, but cylindrical, block, spherical, hemispherical, and polygonal shapes are preferred.

[0069] When using a tablet press, the tableting pressure is preferably 10 to 20 tons, and more preferably 13 to 18 tons, from the viewpoint of moldability. Tableting at a pressure of 10 tons or more prevents the tablets from becoming brittle, making them less likely to crack or chip during line transport or transportation. On the other hand, tableting at a pressure of 20 tons or less makes capping less likely, making the tablets less likely to chip during line transport or transportation. Furthermore, the foaming time can be finely adjusted by changing the tableting pressure. Lowering the pressure shortens the foaming time, while increasing the pressure lengthens it. By setting the tableting pressure within the above range, it becomes easier to control the foaming time and change the diffusion rate of the fragrance, allowing consumers to enjoy multiple fragrances individually, as well as a mixture of multiple fragrances, in a foamed compressed molded product.

[0070] Furthermore, the compression molding method should not be restricted, and it can be manufactured by direct powder compression (direct compression method) or granular compression (indirect compression method). In addition, the order and method of mixing each component can be selected as appropriate.

[0071] The foamed compression molded product used in the embodiments of the present invention is preferably a foamed compression molded product with high hardness and excellent shape retention, as the foaming time is set to 4 to 40 minutes. Preferably, such hardness is 3.0 kgf or higher, when the maximum pressure at which cracks or fissures occur when pressure is applied to the foamed compression molded product using a digital force gauge, i.e., the hardness. Having a hardness of 3.0 kgf or higher makes it easier to set the foaming time within the desired range.

[0072] Furthermore, since the foaming time for the foamed compression molded product used in the embodiment of the present invention is 4 to 40 minutes, the weight of one foamed compression molded product is preferably 15 to 100 g, more preferably 30 to 70 g, and even more preferably 40 to 50 g.

[0073] [Bath additive set] An embodiment of the present invention includes at least two types of effervescent compressed molded products with different fragrances and effervescence times ranging from 4 to 40 minutes. The foaming time and foamed compression molded product are the same as those described above for the foaming time and foamed compression molded product in the method of using the foamed compression molded product, and the preferred product is also the same.

[0074] The bath additive set according to the embodiment of the present invention is not particularly limited as long as it includes at least two types of effervescent compressed molded products with different scents and an effervescence time of 4 to 40 minutes, and there is no particular limit to the number of effervescent compressed molded products included in the bath additive set, as long as it is two or more.

[0075] The bath additive set according to an embodiment of the present invention may contain at least two of the above-mentioned foamed compression molded products in one package (e.g., a bag or container), or each may be individually packaged. [Examples]

[0076] The following describes in more detail, with reference to examples, the method of using the foamed compression molded product and the bath additive set according to the embodiment of the present invention, but the present invention is not limited to these examples. In the examples and comparative examples, unless otherwise specified, "parts" means parts by mass.

[0077] (Examples 1-10, Comparative Examples 1-4) According to the compositions shown in Tables 2 and 3, each component was uniformly mixed by conventional methods to prepare a powder mixture. This powder mixture was then compressed using a single-shot tablet press (manufactured by Shiga Seisakusho Co., Ltd.) to produce 45g / tablet foamed compression molded products with a diameter of 50mm and a thickness of 15mm, for use in each example and comparative example, namely bath additive A and bath additive B.

[0078] (Examples 11-17) Bath additives A and B used in each example were manufactured in the same manner as in Example 1, according to the compositions shown in Table 3. At this time, the compression pressure of the single-stroke tablet press was approximately 15t. In Example 12, a foamed compression molded product with a diameter of 50mm and a thickness of 10mm and a weight of 30g / tablet was used, and in Example 13, a foamed compression molded product with a diameter of 50mm and a thickness of 21mm and a weight of 70g / tablet was used.

[0079] The following ingredients were used for each component in the table. (Fragrances in Tables 2 and 3) • Banana flavoring: Consists of a banana scent and a flavoring component with a vapor pressure of 0.0000286-112 mmHg at 25°C. • Soda flavoring: Consists of a soda-like scent and a vapor pressure of 0.05-28 mmHg at 20°C. • Orange juice flavoring: Consists of flavoring components with the scent of orange juice and a vapor pressure of 0.001-11 mmHg at 20°C. • Vanilla flavoring: Consists of vanilla fragrance components with a vapor pressure of 0.001-11 mmHg at 20°C. (Fragrances in Table 4) Tonalide: Vapor pressure at 25°C: 0.0000286 mmHg Ethyl acetate: Vapor pressure at 25°C: 112 mmHg Limonene: Vapor pressure at 20°C: 1 mmHg Linalyl acetate: Vapor pressure at 25°C: 0.116 mmHg Note that the vapor pressures of each fragrance in Tables 2 and 3 represent the range from the lower limit to the upper limit of the fragrance components they contain. Furthermore, it contains oils and fats that do not contribute to foaming as other components.

[0080] The physical properties of the obtained foamed compression molded products A and B were measured and evaluated according to the following method. In Examples 1-5 and Comparative Examples 1-2, bath additive A has a banana scent, and bath additive B has a soda scent. In Examples 6-10 and Comparative Examples 3-4, bath additive A has an orange juice scent, and bath additive B has a vanilla scent. In Examples 11-17, bath additive A contains tonalid and linalyl acetate as fragrance components, and bath additive B contains ethyl acetate and limonene as fragrance components.

[0081] <Foaming time> As shown in Figure 1, one tablet each of bath additive A and bath additive B were placed at 60 cm intervals at both ends of the long side of a bathtub 11 (internal dimensions: depth 68 cm, width 46 cm, length 110 cm) containing 200 L of 41°C water (water 21), and fixed at a depth of 10 cm from the water surface 22. The time during which foaming (31a and 31b) was visually observed was measured and defined as the foaming time.

[0082] <Time it takes for the scents to blend> Similar to the measurement of effervescence time, bath additive A and bath additive B were placed one tablet each at a 60cm gap at both ends of the long side of a bathtub 11 (internal dimensions: depth 68cm, width 46cm, length 110cm) containing 200L of 41°C water (water 21), as shown in Figure 1, and fixed at a depth of 10cm from the water surface 22. The time it took for Subject A to enjoy the scent of bath additive A alone at measurement position 41a, and the time it took for Subject B to enjoy the scent of bath additive B alone at measurement position 41b, were defined as the time until the scents mixed. Measurement position 41a is located 30 cm above the water surface, perpendicular to the point where the effervescence 31a of bath additive A was observed on the water surface. Measurement position 41b is located 30 cm above the water surface, perpendicular to the point where the effervescence 31b of bath additive B was observed on the water surface.

[0083] <Judgment> The evaluation results regarding the time it took for the above scents to blend were judged according to the following criteria. 〇 (Good): The individual scent can be enjoyed for 30 seconds or more. × (Poor): The scent is barely noticeable, or the duration for enjoying the individual scent is less than 30 seconds.

[0084] The results are shown in Tables 2 to 4.

[0085] [Table 2]

[0086] In Examples 1-5, at measurement position 41a, the banana scent from bath additive A could be enjoyed from the start of the test until the scents mixed, and thereafter, the banana soda scent, a mixture of the banana scent from foamed compression molded product A and the soda scent from bath additive B, could be enjoyed. Similarly, at measurement position 41b, the soda scent from bath additive B could be enjoyed from the start of the test until the scents mixed, and thereafter, the banana soda scent, a mixture of the banana scent from bath additive A and the soda scent from foamed compression molded product B, could be enjoyed.

[0087] On the other hand, in Comparative Example 1, the effervescence was weak, and almost no scent was noticeable. In Comparative Example 2, the time it took for the banana scent from bath additive A and the soda scent from bath additive B to mix was short, making it impossible to fully enjoy each individual scent.

[0088] [Table 3]

[0089] In Examples 6-10, at measurement position 41a, the orange juice scent from bath additive A could be enjoyed from the start of the test until the scents mixed, and thereafter, a vanilla-orange scent, a mixture of the orange juice scent from bath additive A and the vanilla scent from bath additive B, could be enjoyed. Similarly, at measurement position 41b, the vanilla scent from bath additive B could be enjoyed from the start of the test until the scents mixed, and thereafter, a vanilla-orange scent, a mixture of the orange juice scent from bath additive A and the vanilla scent from bath additive B, could be enjoyed.

[0090] On the other hand, in Comparative Example 3, the effervescence was weak, and almost no scent was noticeable. Also, in Comparative Example 4, the time it took for the orange juice scent from bath additive A and the vanilla scent from bath additive B to mix was short, making it impossible to fully enjoy each individual scent.

[0091] [Table 4]

[0092] In Examples 11-17, at measurement position 41a, a citrus scent from bath additive A containing tonalide and linalyl acetate could be enjoyed from the start of the test until the scents mixed. After that, a citrus-banana scent could be enjoyed, which was a mixture of the citrus scent from bath additive A and the banana scent from bath additive B containing ethyl acetate and limonene. Similarly, at measurement position 41b, a banana scent from bath additive B could be enjoyed from the start of the test until the scents mixed. After that, a citrus-banana scent could be enjoyed, which was a mixture of the citrus scent from bath additive A and the banana scent from bath additive B.

[0093] In Examples 12 and 13, where the weight and size of bath additives A and B (foaming compression molded products) were changed, the time it took for the citrus scent from bath additive A and the banana scent from bath additive B to mix was 40 to 50 seconds, allowing for ample enjoyment of each individual scent. In Examples 12 and 13, where the weights were 30g and 70g respectively, one effervescent tablet was placed in a cylindrical metal mesh basket (10cm in diameter x 10cm in height), and this was added to 200L of 41°C bathwater (bathtub internal dimensions: depth 68cm, width 46cm, length 110cm). A funnel was placed just above the top surface of the metal mesh basket in the water, and all the generated carbon dioxide gas was collected in a graduated cylinder. The amount of carbon dioxide gas generated was 100mL for bath additive A and 60mL for bath additive B in Example 12, and 180mL for bath additive A and 200mL for bath additive B in Example 13. In Example 14, where the sodium carbonate content was increased, prolonged effervescence was observed, demonstrating that the effervescence duration suitable for bathing time can be controlled by the formulation. Furthermore, in Examples 15-17, where the content of PEG-6000, sucrose fatty acid ester, or fumaric acid was changed, it was also demonstrated that the effervescence strength suitable for bathing time can be controlled by the formulation. [Industrial applicability]

[0094] According to the method of using the foamed compression molded product and the bath additive set of the present invention, multiple fragrances can be enjoyed individually, and furthermore, fragrances that are a mixture of multiple fragrances can also be enjoyed. [Explanation of Symbols]

[0095] 11 Bathtub 21 water 22 Water surface 31a, 31b Foam 41a, 41b measurement position A, B Bath additives

Claims

1. The method for using the expandable compression molded product comprises using at least two kinds of expandable compression molded products each having a foaming time of 4 to 40 minutes and different scents.

2. The method for using the expandable compression molded product according to claim 1, wherein the expandable compression molded product has a foaming power of 0.01 to 2.0 mL / s.

3. The method for using the expandable compression molded product according to claim 1 or 2, wherein the expandable compression molded product contains a fragrance component having a vapor pressure of 0.00002 to 120 mmHg.

4. The expandable compression molded product according to claim 1 or 2, wherein the expandable compression molded product contains 10 to 60% by mass of sodium hydrogen carbonate, 5 to 25% by mass of sodium carbonate, and 5 to 20% by mass of an organic acid.

5. 3. A method for using the foamable compression molded product according to claim 1 or 2, which comprises using the foamable compression molded product as a bath additive.

6. The bath agent set includes at least two kinds of foamable compression molded products having foaming times of 4 to 40 minutes and different scents.

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