Foamable molded article and method for sustaining fragrance of perfume

Abstract

To provide a foamable molded article with favorable fragrance longevity of a perfume, and a method for sustaining the fragrance of a perfume.SOLUTION: A foamable molded article comprises (A) an organic acid, (B) a carbonate, (C) a powder having an oil absorption of 200 mL / 100 g or more, and (D) a perfume. Also provided is a method for sustaining the fragrance of a perfume by using a powder having an oil absorption of 200 mL / 100 g or more under gas generation due to foaming.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a foam molding and a method for prolonging the scent of a perfume. [Background technology]

[0002] In recent years, it has become common to add bath additives to bathwater to give it a refreshing aroma or color, to stimulate metabolism and improve sensitivity to cold, and to obtain a warming effect, and bath additives are sold in various forms, such as bath salts, tablets, and liquid preparations. Among these, bath additives containing a carbon dioxide gas generator that combines carbonates and acids generate carbon dioxide gas in the bathwater, and the carbon dioxide gas dissolved in the bathwater dilates capillaries and increases metabolism, which is expected to have effects such as promoting blood circulation and relieving fatigue.

[0003] One of the important benefits expected from bath additives is the aromatherapy effect of the fragrance contained in the bath additives. To enhance this effect, it is important to maintain the fragrance stably during bathing. For example, Patent Document 1 reports a technology for enhancing the fragrance of bath additives by making the bath additives into granules with small particle diameters and large surface areas. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-062319 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the bath additives that have been popular up until now, which generate carbon dioxide gas in the form of tablets, have had the problem that the bath additives sink in the bathwater, making it difficult to stably maintain the fragrance of the fragrance. In contrast, adding a large amount of fragrance to improve the fragrance durability leads to another problem: the formulation becomes less stable. This problem is not limited to bath additives, but also occurs in air fresheners, deodorants, foaming cleaners such as denture cleaners, flush toilet cleaners, and drain cleaners, foaming confectioneries, and foaming molded products for head spas, etc., which diffuse the fragrance of the fragrance by generating gas through foaming. Therefore, an object of the present invention is to provide a foamable molded product that has good persistence of the fragrance of a fragrance, and a method for prolonging the fragrance of a fragrance. [Means for solving the problem]

[0006] As a result of intensive research to solve the above problems, the present inventors have found that the use of an expandable molded product containing a powder having an oil absorption of a predetermined value or more can effectively maintain the fragrance of a fragrance contained in the expandable molded product. Furthermore, they have found that the use of a powder having an oil absorption of a predetermined value or more can effectively maintain the fragrance of the fragrance under gas generation due to foaming, and have completed the present invention. That is, the present invention is as follows.

[0007] [1] A foamable molded product comprising (A) an organic acid, (B) a carbonate, (C) a powder having an oil absorption of 200 mL / 100 g or more, and (D) a fragrance. [2] A method for sustaining the fragrance of a fragrance by using a powder with an oil absorption of 200 mL / 100 g or more under gas generation due to foaming. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a foamable molded product that has a good persistence of the fragrance of a fragrance, and a method for prolonging the fragrance of a fragrance. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a graph showing the tablet hardness of each effervescent molded product obtained in the Examples and Comparative Examples. [Figure 2] FIG. 2 is a graph showing the results of evaluation of the fragrance intensity of the foamable molded products of Examples 2, 3, 5, 6, and 7 and Comparative Examples 3 and 4, 0.5 hours, 1 hour, and 2 hours after dissolution. DETAILED DESCRIPTION OF THE INVENTION

[0010] The present invention will be described in detail below, but the present invention is not limited to the following embodiments and can be modified as desired without departing from the spirit of the present invention. Furthermore, the symbol "to" indicating a numerical range is used to mean that the numerical values ​​before and after it are included as the lower limit and upper limit.

[0011] [Foamable moldings] The foamable molded product according to an embodiment of the present invention (hereinafter also referred to as the foamable molded product of this embodiment) is characterized by containing (A) an organic acid, (B) a carbonate, (C) a powder having an oil absorption of 200 mL / 100 g or more, and (D) a fragrance.

[0012] [(A) Organic acid] The expandable molded product of this embodiment contains (A) an organic acid. The organic acid is a component that reacts with (B) a carbonate, which will be described later, to generate carbon dioxide gas. Examples of organic acids include succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, benzoic acid, citric acid, and salicylic acid. From the viewpoints of ease of handling and economy, succinic acid and fumaric acid are preferred. These organic acids can be used alone or in appropriate combinations of two or more.

[0013] Furthermore, the particle size (average particle size d50) of the organic acid is preferably 0.01 to 5 mm, more preferably 0.05 to 0.5 mm. When the particle size of the organic acid is within the above range, it is less likely to remain undissolved in the liquid and foams efficiently, diffusing the fragrance of the fragrance, which is preferable. In this specification, the average particle size d50 refers to the particle size at 50% of the cumulative value in the particle size distribution determined by laser diffraction / scattering.

[0014] When the particle size of the (A) organic acid is larger than the particle size specified above, it is preferable to crush it in advance to a suitable particle size. 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 used in a single-stage operation or in a multi-stage operation using the same or different types of crushers.

[0015] The content of the organic acid in 100% by mass of the foamable molded product of this embodiment is preferably 5 to 50% by mass. If the content of the organic acid is 5% by mass or more, when the organic acid reacts with the carbonate to generate carbon dioxide gas, sufficient carbon dioxide gas can be generated. The content of the organic acid is more preferably 8% by mass or more, and even more preferably 10% by mass or more. Furthermore, the content of the organic acid is more preferably 40% by mass or less, even more preferably 35% by mass or less, and particularly preferably 30% by mass or less. Within the above range, the organic acid is less likely to remain undissolved in the liquid, and efficient foaming can be achieved to diffuse the fragrance of the fragrance.

[0016] [(B) Carbonate] The foamable molded product of this embodiment contains (B) a carbonate, which is a component that generates carbon dioxide gas by reacting with the (A) organic acid.

[0017] The carbonate may be any that reacts with an organic acid in a liquid to generate carbon dioxide gas, and examples thereof include sodium carbonate, sodium bicarbonate, sodium sesquicarbonate, calcium carbonate, potassium carbonate, magnesium carbonate, etc. One or more of these may be used. Of these, it is more preferable to use sodium carbonate and sodium bicarbonate.

[0018] The content of carbonate in 100% by mass of the expandable molded product of this embodiment is preferably 20 to 90% by mass. If the content of carbonate is 20% by mass or more, it can react with the organic acid to generate sufficient carbon dioxide gas. The content of carbonate is more preferably 30% by mass or more, and even more preferably 40% by mass or more. Furthermore, the content of carbonate is more preferably 80% by mass or less, even more preferably 70% by mass or less, and particularly preferably 60% by mass or less. Within the above range, the amount of foaming per unit time can be increased, and vigorous foaming can be obtained.

[0019] The particle size (average particle size d50) of the carbonate is preferably 0.01 to 5 mm, more preferably 0.05 to 0.5 mm. Within the above range, the expandable molded product has an appropriate hardness and can maintain its expansion time.

[0020] [(C) Powder with an oil absorption of 200 mL / 100 g or more] It is important that the foamable molded product of this embodiment contains (C) a powder having an oil absorption of 200 mL / 100 g or more (hereinafter also referred to as "(C) powder"). Since the (C) powder has an oil absorption of 200 mL / 100 g or more, it can sufficiently retain the (D) flavoring, which will be described later. Therefore, when the foamable molded product of this embodiment is dissolved in water or the like, the powder that has sufficiently retained the flavoring is blown up by the momentum of foaming, thereby diffusing the flavoring and prolonging the fragrance. Furthermore, since the foamable molded product can sufficiently retain the (D) flavoring, the raw materials of the foamable molded product are easily pressed together, improving the tablet hardness of the foamable molded product.

[0021] The oil absorption of the (C) powder is 200 mL / 100 g or more, preferably 220 mL / 100 g or more, and more preferably 230 mL / 100 g or more. The oil absorption of the (C) powder is preferably 500 mL / 100 g or less, more preferably 400 mL / 100 g or less, and particularly preferably 350 mL / 100 g or less. Within the above range, the flavor diffuses, the scent lasts, and the tablet hardness of the effervescent molded product can be improved.

[0022] (C) The oil absorption of a powder can be measured by the following method, which is based on JIS K5101-13-2 (2004). 1. Weigh out 1.00 g of the sample to measure the oil absorption. 2. Place 1.00 g of sample on a smooth glass plate and gradually add 4 or 5 drops of linseed oil (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., quality standard Wako Grade 1, CAS: 8001-26-1) from a burette to the center of the sample, thoroughly kneading the whole mixture with a palette knife each time. 3. Repeat the dropping and kneading process until the mixture becomes a hard, putty-like mass, then drop one drop at a time and knead it together, finishing just before the mixture suddenly softens with the last drop. 4. Calculate the amount of linseed oil added until the end point is reached using the burette scale. 5. Oil absorption is calculated as follows: Oil absorption (mL / 100g) = 100 × amount of linseed oil dropped (mL) ÷ mass of sample (g)

[0023] The loose bulk density of the (C) powder is preferably 20 to 150 g / L. When the loose bulk density of the (C) powder is 150 g / L or less, when the expandable molded product of this embodiment is dissolved in water or the like, the (C) powder, which sufficiently retains the fragrance, is blown up by the momentum of foaming, so that the fragrance is diffused and the fragrance lasts. Furthermore, when the loose bulk density of the (C) powder is 150 g / L or less, the tableting density can be increased, and therefore the tableting hardness can be increased. Furthermore, when the loose bulk density of the (C) powder is 20 g / L or more, a decrease in production efficiency due to scattering can be prevented. The loose bulk density of the powder (C) is more preferably 100 g / L or less, even more preferably 80 g / L or less, and is more preferably 40 g / L or more, even more preferably 60 g / L or more.

[0024] (C) The loose bulk density of a powder can be measured by filling a 100 mL container "loosely" to the brim without tapping and measuring the weight of the filled powder.

[0025] The type of (C) powder is not particularly limited as long as it has the above-mentioned oil absorption. Examples include lubricants having the above-mentioned oil absorption. Examples include calcium silicate, silicic acid anhydride, light silicic acid anhydride, talc, kaolin, magnesium stearate, calcium stearate, stearic acid, and sucrose fatty acid esters. Of these, calcium silicate and silicic acid anhydride are preferred from the viewpoint of moldability. These (C) powders can be used alone or in combination of two or more.

[0026] The content of (C) powder in 100% by mass of the expandable molded product of this embodiment is preferably 0.1 to 5% by mass. If the content of (C) powder is 0.1% by mass or more, shape retention and fragrance persistence can be improved. The content of (C) powder is more preferably 0.3% by mass or more, and even more preferably 0.4% by mass or more. Furthermore, the content of (C) powder is preferably 5% by mass or less. If the content of (C) powder is 5% by mass or less, a decrease in production efficiency due to scattering can be prevented. The content of (C) powder is more preferably 3% by mass or less, and even more preferably 1.5% by mass or less.

[0027] The particle size (average particle size d50) of the (C) powder is preferably 1 to 50 μm, more preferably 2 to 30 μm. When the particle size of the (C) powder is within the above range, the expandable molded product has an appropriate hardness, and the expansion time can be maintained, which facilitates the diffusion of the fragrance. In addition, a decrease in production efficiency due to scattering can be prevented.

[0028] [(D) Fragrance] The foamable molded product of this embodiment contains a fragrance (D). Examples of the fragrance (D) used in the present invention include natural fragrances extracted from various plants and animals, synthetic fragrances that are chemically synthesized, and blended fragrances made by mixing a number of these fragrance components.

[0029] Fragrances that can be used include those described in various literature, such as "Perfume and Flavor Materials of Natural Origin," Steffen Arctander, Allured Pub. Co. (1960), "Encyclopedia of Fragrances," edited by the Japan Fragrance Manufacturers 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. I and II, Steffen Arctander, Allured Pub. Co. (1994), "Fundamentals of Fragrance and Perfume Blending," edited by Nakajima Mototaka, Sangyo Tosho (1995), "Synthetic Fragrances: Chemistry and Product Knowledge," written by Indo Genichi, The Chemical Daily (1996), and "Encyclopedia of Fragrances," edited by Yatagai Mitsukatsu, Maruzen (2005). Each of the above is incorporated herein by reference. Representative examples of fragrances are listed below, but are not limited to these.

[0030] Examples of natural fragrances include natural essential oils such as orange oil, lemon oil, lavender oil, lavandin oil, bergamot oil, patchouli oil, cedarwood oil, and peppermint oil. Examples of synthetic fragrances include hydrocarbon terpenes such as α-pinene, β-pinene, limonene, p-cymene, terpinolene, α-terpinene, γ-terpinene, α-phellandrene, myrcene, camphene, and ocimene; heptanal, octanal, decanal, benzaldehyde, salicylic aldehyde, phenylacetaldehyde, citronellal, hydroxycitronellal, hydrotropic aldehyde, ligustral, citral, α-hexylcinnamic aldehyde, and α- Aldehydes such as amyl cinnamic aldehyde, lilial, cyclamen aldehyde, lyral, heliotropin, anisaldehyde, helional, vanillin, and ethyl vanillin; ethyl formate, methyl acetate, ethyl acetate, methyl propionate, methyl isobutyrate, ethyl isobutyrate, ethyl butyrate, propyl butyrate, isobutyl acetate, isobutyl isobutyrate, isobutyl butyrate, isobutyl isovalerate, and ethyl-2-methylvalerate. Acetate, Isoamyl Acetate, Terpinyl Acetate, Isoamyl Propionate, Amyl Propionate, Amyl Isobutyrate, Amyl Butyrate, Amyl Isovalerate, Allyl Hexanoate, Ethyl Acetoacetate, Ethyl Heptylate, Heptyl Acetate, Methyl Benzoate, Ethyl Benzoate, Ethyl Octylate, Styrallyl Acetate, Benzyl Acetate, Nonyl Acetate, Bornyl Acetate, Linalyl Acetate, Ortho-tert-Butylcyclohexyl Esters and lactones such as methyl acetate, linalyl benzoate, benzyl benzoate, triethyl citrate, ethyl cinnamate, methyl salicylate, hexyl salicylate, hexyl acetate, hexyl butyrate, menthyl acetate, terpinyl acetate, anisyl acetate, phenylethyl isobutyrate, methyl jasmonate, methyl dihydrojasmonate, ethylene brassylate, γ-undecalactone, γ-nonyl lactone, cyclopentadecanolide, and coumarin;Ethers such as anisole, p-cresyl methyl ether, dimethylhydroquinone, methyl eugenol, β-naphthol methyl ether, β-naphthol ethyl ether, anethole, diphenyl oxide, rose oxide, galaxolide, and ambrox; isopropyl alcohol, cis-3-hexenol, heptanol, 2-octanol, dimetol, dihydromyrcenol, linalool, benzyl alcohol, citronellol, geraniol, nerol, terpineol, tetrahydrogeraniol, l-menthol, cedrol, santalol, thymol, anise alcohol, phenylethyl alcohol, hexyl alcohol Examples of fragrances include alcohols such as sanol, diacetyl, menthone, isomenthone, thiomenthone, acetophenone, α- or β-damascone, α- or β-damascenone, α-, β-, or γ-ionone, α-, β-, or γ-methylionone, methyl-β-naphthyl ketone, benzophenone, thiamin, acetylcedrene, α- or β-isomethylionone, α-, β-, or γ-irone, ketones such as maltol, ethyl maltol, cis-jasmone, dihydrojasmone, l-carvone, dihydrocarvone, and methyl amyl ketone, camphor, 1,8-cineole, allyl amyl glycolate, isopulegol, and allyl caproate. These fragrances can be used alone or in any combination of two or more to form a blended fragrance. Furthermore, fragrances can also be used as a mixture (fragrance composition) containing fragrance ingredients, solvents, fragrance stabilizers, and the like.

[0031] Examples of the solvent in the mixture (fragrance composition) include water, alcohols such as ethanol, propanol, and benzyl alcohol, polyhydric alcohols such as ethylene glycol, diethylene glycol, dipropylene glycol, glycerin, and 1,3-butanediol, 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 dimethyl ether. Examples of the solvent include glycol ethers such as dipropylene glycol monomethyl ether, tripropylene glycol monomethyl ether, tripropylene 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, phenyl carbitol, phenyl cellosolve, and benzyl carbitol, paraffins such as liquid paraffin and n-paraffin, esters such as diethyl phthalate, benzyl benzoate, triethyl citrate, and isopropyl myristate, and others such as 3-methyl-4-methoxybutanol, N-methylpyrrolidone, and propylene carbonate. These solvents may be used alone or in any combination of two or more.

[0032] The content of the fragrance (D) in 100% by mass of the foamable molded product of this embodiment is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and even more preferably 0.3% by mass or more. From the viewpoint of moldability, the content of the fragrance in 100% by mass of the foamable molded product of this embodiment is preferably 1% by mass or less, more preferably 0.8% by mass or less, and even more preferably 0.7% by mass or less. By being within the above range, when the foamable molded product is dissolved in bathwater or the like, the fragrance is sufficiently fragrant and lasts for a long time.

[0033] [Content ratio: (D) Fragrance / (C) Powder] In the foamable molded product of this embodiment, the ratio (D / C) of the content of the (D) fragrance to the content of the (C) powder, based on mass, is preferably 0.02 to 10. When D / C is 0.02 or more, the (C) powder, which has sufficiently retained the fragrance, diffuses into the air, and the fragrance of the fragrance is sufficiently sustained. Furthermore, when D / C is 10 or less, the raw materials of the foamable molded product are easily pressed together, resulting in good shape retention. The foamable molded product of this embodiment preferably has a D / C ratio of 0.1 or more, even more preferably 0.5 or more, and particularly preferably 1 or more, and more preferably 8 or less, even more preferably 5 or less, and particularly preferably 3 or less.

[0034] The content of the fragrance component (when the fragrance (D) is a fragrance composition, the fragrance component contained in the fragrance composition) in 100% by mass of the foamable molded product of this embodiment is preferably 0.06% by mass or more, more preferably 0.12% by mass or more, and even more preferably 0.18% by mass or more, from the viewpoint of fragrance release when dissolved in water, etc. Furthermore, the content of the fragrance component in 100% by mass of the foamable molded product of this embodiment is preferably 1% by mass or less, more preferably 0.8% by mass or less, and even more preferably 0.7% by mass or less, from the viewpoint of moldability.

[0035] In the foamable molded product of this embodiment, the ratio of the content of the fragrance component to the content of the (C) powder is preferably 0.01 to 10 by mass. When the ratio of the content of the fragrance component to the content of the (C) powder is 0.01 or more, the (C) powder, which sufficiently retains the fragrance component, diffuses into the air, and the scent of the fragrance component is sufficiently sustained. Furthermore, when the ratio of the content of the fragrance component to the content of the (C) powder is 10 or less, the raw materials of the foamable molded product are easily bonded together, resulting in good moldability. In the foamable molded product of this embodiment, the ratio of the content of the fragrance component to the content of the (C) powder is more preferably 0.05 or more, even more preferably 0.3 or more, particularly preferably 0.6 or more, more preferably 8 or less, even more preferably 5 or less, and particularly preferably 3 or less.

[0036] [Other ingredients] The foamable molded product of this embodiment may contain other components as appropriate, as long as the problem of the present invention can be solved, even if the components are not those described above. Examples of other components include inorganic salts, sugars, opacifying agents, binders, lubricants, humectants, surfactants, enzymes, pigments, vitamins and their derivatives, anti-fading agents, pH adjusters, and disinfectants. The uses of these other components may overlap.

[0037] phosphates such as sodium phosphate, sodium polyphosphate, and calcium hydrogen phosphate; silicates such as calcium silicate and magnesium silicate; sulfides such as sulfur, calcium sulfide, sodium sulfide, potassium sulfide, ammonium sulfide, barium sulfide, zinc sulfide, tin sulfide, antimony sulfide, iron sulfide, and phosphorus sulfide; silicon compounds such as silicic acid anhydride, metasilicic acid, mica powder, and neutral clay; hydroxides such as sodium hydroxide and calcium hydroxide; borax, boric acid, potassium bromide, potassium permanganate, artificial callus salt, mineral springs, mineral sand, and hot spring deposits. These inorganic salts may also be contained as bulk adjusters, formulation aids, and formulation stabilizers.

[0038] When the expandable molded product of this embodiment contains inorganic salts, the content of the inorganic salts in 100% by mass of the expandable molded product of this embodiment is preferably 10% by mass or more, more preferably 12.5% ​​by mass or more, and even more preferably 15% by mass or more, and is preferably 60% by mass or less, more preferably 40% by mass or less, and even more preferably 25% by mass or less. By being within the above range, the expandable molded product can have excellent shape retention and good solubility.

[0039] Examples of sugars include glucose, fructose, lactose, maltose, sucrose, maltodextrin, cyclodextrin, maltose, fructose, and trehalose.

[0040] When the foamable molded product of this embodiment contains a sugar, the sugar content in 100% by mass of the foamable molded product of this embodiment is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.5% by mass or more, and is preferably 15% by mass or less, more preferably 10% by mass or less, and even more preferably 3% by mass or less. By being within the above range, the foamable molded product can have excellent shape retention and good solubility.

[0041] The foamable molded product of the present embodiment may or may not contain a clouding agent, such as titanium oxide, calcium oxide, or bentonite.

[0042] Furthermore, from the viewpoint of preventing a decrease in the hardness of the foamable molded product, the foamable molded product used in the embodiment of the present invention preferably contains 10% by mass or less of a clouding agent relative to 100% by mass of the foamable molded product, more preferably 5% by mass or less, and even more preferably 3% by mass or less.

[0043] The foamable molded product of the present embodiment may or may not contain a binder. By containing a binder, the foaming time of the foamable molded product can be adjusted. For example, the foaming time can be extended by increasing the amount of binder blended. Examples of binders include polyalkylene glycol, polyvinylpyrrolidone, dextrin, etc., and among these, polyalkylene glycol is preferred. The molecular weight of the polyalkylene glycol is preferably 100 to 20,000, more preferably 400 to 15,000, and even more preferably 2,000 to 10,000. Specifically, polyethylene glycol, polypropylene glycol, etc. are used, and polyethylene glycol is particularly preferred. Also, various polyalkylene glycols can be used alone or in combination of two or more.

[0044] The foamable molded product of the present embodiment preferably contains 0.5 to 10 mass % of the binder, and more preferably 1 to 5 mass % of the binder, relative to 100 mass % of the foamable molded product. By containing the binder in the above range, the foaming time can be appropriately extended.

[0045] The expandable molded product of this embodiment may contain a lubricant in addition to the powder (C). Examples of lubricants include silicone oil and paraffin. The expandable molded product of this embodiment can adjust the foaming time by blending a lubricant. For example, the foaming time can be extended by increasing the blending amount of lubricant. The lubricant is preferably contained in an amount of 0.001 to 1% by mass, more preferably 0.01 to 0.5% by mass, relative to 100% by mass of the foamable molded product. By containing the lubricant in this range, the flowability can be improved when the raw materials are mixed.

[0046] Examples of moisturizing agents include ceramides such as ceramide, ceramide derivatives, and ceramide analogues; organic acid salts such as sodium lactate, disodium tartrate, sodium pyrrolidonecarboxylate, and disodium glutamate; mucopolysaccharides such as chondroitin sulfate and hyaluronic acid; plant collagen obtained from soybeans, corn, carrots, etc.; marine collagen obtained from salmon, pufferfish, tuna, flounder, etc.; fatty acid esters such as isopropyl myristate and isopropyl palmitate, shea butter, squalane, placenta, arbutin, casein, silk, honey, jojoba oil, ginger extract, pueraria root extract, royal jelly extract, L-arginine, and cationized cellulose.

[0047] 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 such as soap bases, sodium α-olefin sulfonate, sodium alkyl glucoside sulfate, sodium lauryl sulfate, polyoxyethylene sodium lauryl sulfate, and sodium coconut oil fatty acid methyl taurate; amphoteric surfactants such as alkyl betaine, alkylamidopropyl betaine, alkylamido sulfobetaine, and 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine; and cationic surfactants such as alkylamine salts and quaternary ammonium salts.

[0048] Examples of enzymes include trypsin, α-chymotrypsin, bromelain, papain, protease, proctase, serratiopeptidase, lysozyme, pepsin, and ficin.

[0049] Examples of pigments include legal 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, and Orange No. 205, as well as chlorophyll, riboflavin, annatto, and anthocyanin.

[0050] Examples of vitamins and derivatives thereof include vitamin A, vitamin B, vitamin C, vitamin D, vitamin E, vitamin F, vitamin H, pantothenic acid, nicotinic acid or its derivatives, vitamin E nicotinate, tocopherol acetate, sodium ascorbate, etc.

[0051] Examples of the anti-fading agent include amino acids such as glycine, alanine, and glutamic acid, and salts thereof.

[0052] Examples of pH adjusters include disodium hydrogen phosphate, trisodium phosphate, disodium hydrogen citrate, and trisodium citrate.

[0053] Examples of disinfectants include isopropylmethylphenol, triclosan, dichloroisocyanuric acid, silver zeolite, cetylpyridinium chloride, benzalkonium chloride, benzothonium chloride, chlorhexidine, hinokitiol, phenol, glycyrrhizinate and derivatives thereof.

[0054] The foamable molded product of this embodiment can be produced by mixing the above components and molding them. Examples of the molding method include compression molding. The expandable molded product of the present embodiment is also referred to as an expandable compression molded product when produced by compression molding. Examples of the expandable compression molded product include briquettes and tablets. The compression method is not particularly limited, and a well-known briquetting machine or tablet press can be used. A well-known example of a briquetting machine is a briquetting machine (manufactured by Shinto Kogyo Co., Ltd.). A tablet press is a device that fills a powder mixture into a die and compresses it between a lower punch and an upper punch to form a shape. There are single-punch tablet presses, in which a pair of upper and lower punches move up and down inside a single die to compress the mixture, and rotary tablet presses, in which dies are embedded at equal intervals around the periphery of a horizontally rotating turntable, and a series of operations - filling, compression, and ejection - are carried out continuously as the turntable rotates.

[0055] When a briquette machine is used, the particle size of the briquettes is preferably 15 mm or less, more preferably 10 mm or less, and even more preferably 7 mm or less, from the viewpoint of the solubility of the briquettes. The shape of the briquettes is not particularly limited, but preferred shapes include briquettes, almonds, pillows, fingers, and lenses. The particle size range of the briquettes can be set depending on the shape of the briquettes. For example, when the shape is elliptical such as almonds, the particle size range refers to the major axis of the ellipse, and when the shape is polygonal such as pillows, the particle size range refers to the longest axis.

[0056] The size of the tablets produced using a tablet press is preferably 80 mm or less in diameter (length of one side in the case of a polygonal shape) in the case of a cylindrical shape, more preferably 70 mm or less, and also preferably 10 mm or more, more preferably 30 mm or more. The thickness of the tablets is preferably 20 mm or less, more preferably 18 mm or less, and also 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 is preferably cylindrical, block-shaped, spherical, hemispherical, polygonal, etc.

[0057] From the viewpoint of moldability, the tableting pressure when using a tablet press is preferably 10 to 30 t, and more preferably 12 to 25 t. Tableting at a tableting pressure of 10 t or more prevents the tablets from becoming brittle and makes them less likely to crack or chip during line transfer or transportation. Furthermore, a tableting pressure of 30 t or less makes it less likely for capping to occur and makes it less likely for tablets to chip during line transfer or transportation. Furthermore, the foaming time can be finely adjusted by changing the compression pressure: lowering the compression pressure shortens the foaming time, and increasing the compression pressure lengthens the foaming time. By setting the compression pressure within the above range, the foaming time can be controlled, and the diffusion of the fragrance can be adjusted.

[0058] The compression molding method is not limited, and the composition can be produced by a direct powder compression method (direct compression method) or a granule compression method (indirect compression method). The order of mixing the components and the method of mixing can be selected appropriately.

[0059] The foamable molded product of this embodiment is preferably a foamable molded product having high hardness and excellent shape retention. Such hardness is preferably 3 kgf or more when a load is applied to the foamable molded product using, for example, a digital force gauge, and the load value at which cracks or fissures appear, i.e., the hardness, is measured. A hardness of 3 kgf or more can reduce cracks and chips during production and transportation, and also makes it easier to keep the foaming time within a desired range. Hardness can be measured, for example, under the following measurement conditions. [Measurement conditions] Digital force gauge: Aiko Engineering "MODEL-RZ-50" Electric stand: Aiko Engineering "MODEL-1308U" Measurement attachment: 012B (circular, diameter 15 mm) Measurement speed: 5mm / min

[0060] The weight of each foamable molded product of this embodiment is preferably 15 to 100 g, more preferably 30 to 70 g, and even more preferably 40 to 50 g. By having the weight of each foamable molded product of this embodiment be 15 g or more or 100 g or less, high hardness can be maintained, and the fragrance can be diffused and maintained.

[0061] The density of the foamed molded product of this embodiment is 1.0 to 3.0 g / cm 3 is preferably 1.3 to 2.3 g / cm 3 More preferably, it is 1.6 to 2.0 g / cm 3 It is more preferable that:

[0062] [Application] The foamable molded article of this embodiment can be used for, for example, bath additives, cleaning agents, air fresheners, deodorants, etc., and is preferably used as a bath additive.

[0063] [Method for making perfume fragrance last longer] The method for sustaining the scent of a fragrance according to an embodiment of the present invention (hereinafter also referred to as the method of this embodiment) is characterized by using a powder with an oil absorption of 200 mL / 100 g or more under gas generation due to foaming.

[0064] In the method of this embodiment, it is important to use a powder with an oil absorption of 200 mL / 100 g or more under gas generation due to foaming. By using a powder with an oil absorption of 200 mL / 100 g or more, the powder can sufficiently retain the fragrance. Therefore, under gas generation due to foaming, the powder that sufficiently retains the fragrance is lifted up by the momentum of the generated gas, diffusing the fragrance and sustaining the fragrance.

[0065] The method for generating gas by effervescence is not particularly limited as long as the powder holding the fragrance can be diffused by the gas generated by effervescence. As described above, carbon dioxide gas may be generated using the expandable molded product of this embodiment. Alternatively, without using an expandable molded product, effervescent gas may be generated by dissolving sodium borohydride or magnesium hydride in water to generate hydrogen, or by dissolving a peroxide such as calcium peroxide in water to generate oxygen. The generated carbon dioxide gas, hydrogen, and oxygen cause the powder holding the fragrance to rise and diffuse.

[0066] As the powder having an oil absorption of 200 mL / 100 g or more, the powder (C) contained in the expandable molded product of this embodiment described above can be used as is.

[0067] Among the methods of this embodiment, the method using the foamable molded product of this embodiment described above is particularly preferred. Specifically, by dissolving the foamable molded product of this embodiment in water or the like, (A) the organic acid and (B) the carbonate react to generate carbon dioxide gas. Then, the (C) powder containing the (D) fragrance contained in the foamable molded product of this embodiment is carried aloft by the momentum of the generated carbon dioxide gas, thereby diffusing the (D) fragrance and allowing the fragrance to last. [Example]

[0068] The present invention will be further described below with reference to examples, but the present invention is not limited to the following examples.

[0069] Test Example 1 (Examples 1 to 7, Comparative Examples 1 to 4) Each raw material was weighed according to the composition shown in Table 1, and a powder mixture (bath agent composition) was prepared in a mixer to make it uniform. This powder mixture was compressed using a hydraulic tableting machine at a tableting pressure of 10 t to produce tablets with a diameter of 50 mm, a thickness of 13 mm, a weight of 40 g per tablet, and a density of 1.76 g / cm. 3 A foamed molded product (foamed compression molded product) having a roughly cylindrical shape was produced.

[0070] The components used in Table 1 are as follows: [(A) Organic acid] Fumaric acid Succinic acid [(B) Carbonate] Sodium bicarbonate Sodium carbonate [(C) Powder] Calcium silicate: "Fluorite R" manufactured by Tomita Pharmaceutical Co., Ltd. (average particle size 30 μm) Silica anhydride 1: Fuji Silysia Chemical's "Sylsia 310P" (average particle size 2.7 μm) Silica anhydride 2: DSL Japan "Carplex #80" (average particle size 15.0 μm) Silica anhydride 3: DSL Japan "Carplex #67" (average particle size 11.5 μm) Silica anhydride 4: "Silysia 550" manufactured by Fuji Silysia Chemical (average particle size 3.9 μm) (control component) Silica anhydride 5: DSL Japan's "Carplex BS306" (average particle size 24.0 μm) (control ingredient) Silica anhydride 6: DSL Japan's "Carplex BS303" (average particle size 14.0 μm) (control ingredient) [(D) Fragrance] Fragrance: Yuzu-based fragrance (synthetic fragrance 95.5% by weight, solvent 4.5% by weight) (synthetic fragrance includes limonene, linalool, and galaxolide)

[0071] [Inorganic salts] Sodium sulfate [Binder] Polyethylene glycol (molecular weight 8300) Polyvinylpyrrolidone Dextrin [Pigment] Legal color: Yellow No. 202 (1) [lubricant] Liquid paraffin

[0072] (Tablet hardness measurement) For each foam-molded product obtained in the Examples and Comparative Examples, a load was applied perpendicular to the top surface of the foam-molded product using a digital force gauge (manufactured by Aiko Engineering Co., Ltd.), and the load value at which cracks or fissures appeared (tablet hardness) was measured. Specifically, a load was applied under the following conditions, and the load value at which cracks or fissures appeared was evaluated as the tablet hardness of the foam-molded product. For each Example and Comparative Example, the tablet hardness of a total of three tablets was measured, and the average value was taken as the measured value. The results are shown in Table 1 and Figure 1. The measurement conditions and evaluation criteria for tablet hardness are shown below. [Measurement conditions] Digital force gauge: Aiko Engineering "MODEL-RZ-50" Electric stand: Aiko Engineering "MODEL-1308U" Measurement attachment: 012B (circular, diameter 15 mm) Measurement speed: 5mm / min [Evaluation criteria for tablet hardness] ○: (C) Hardness increased by 1 kgf or more compared to the case without powder blending (Comparative Example 4) ×: (C) Hardness does not increase by 1 kgf or more compared to the case without powder blending (Comparative Example 4)

[0073] The evaluation results of tablet hardness are shown in Table 1.

[0074] (Fragrance intensity evaluation) 3.74m 3In a bathroom having an enclosed space (1.6 m (length) × 1.2 m (width) × 1.95 m (height)), 200 L of hot water (40°C) was poured into the bathtub, and one tablet of each of the foam-molded products obtained in Examples 2, 3, 5, 6, and 7 and Comparative Examples 3 and 4 was added. Thereafter, the aroma in the bathroom was smelled 0.5 hours, 1 hour, and 2 hours after the entire amount of each foam-molded product had dissolved, and the intensity of the aroma was evaluated by five expert panelists, and the average value was calculated. It was confirmed that the aroma was sufficiently noticeable immediately after the entire amount of each foam-molded product had dissolved. The bathroom remained sealed until the end of the test, except when the aroma was being smelled.

[0075] The following evaluation scale was used: [Evaluation scale] 2: Hasn't weakened much since the beginning 1: Has become slightly weaker since the beginning 0: Has become significantly weaker since the beginning (If it is below 1, the scent will not be fully enjoyable.) The initial stage in the evaluation scale refers to the stage immediately after the entire amount of each foamable molding has dissolved.

[0076] The average value of the panel evaluations 2 hours after dissolution was evaluated separately as follows. [Average evaluation criteria] ◎: Average panel rating of 2 or higher (fragrance has not weakened since the beginning and is still strong) 〇: Average panel rating is between 1 and 2 (fragrance has weakened since the beginning, but is still present) ×: Average panel evaluation score is less than 1 (significantly weaker than the initial score) (*"x" means you cannot fully enjoy the scent) In the above average value evaluation criteria, the initial stage refers to the stage immediately after the entire amount of each foamable molding has dissolved.

[0077] The evaluation results after 0.5 hours, 1 hour, and 2 hours of dissolution are shown in Table 1 and FIG.

[0078] [Table 1]

[0079] The foamable molded products of Examples 2, 3, 5, 6, and 7, which contained powder with an oil absorption of 200 mL / 100 g or more, maintained their fragrance even two hours after dissolution in the fragrance intensity evaluation. On the other hand, the foamable molded product of Comparative Example 3, which contained powder with an oil absorption of less than 200 mL / 100 g, and the foamable molded product of Comparative Example 4, which contained no powder, showed a significantly weaker fragrance one to two hours after dissolution in the fragrance intensity evaluation, and were unable to maintain their fragrance. From these results, it is believed that when the foamable molded product was dissolved in water, powder with an oil absorption of 200 mL / 100 g or more rose up while still retaining the fragrance, allowing the fragrance to diffuse and maintain its fragrance. Furthermore, the foamable molded products of Examples 1 to 7, which contained powder with an oil absorption of 200 mL / 100 g or more, showed an increase in tablet hardness of 1 kgf or more compared to the foamable molded product of Comparative Example 4, which contained no powder. On the other hand, the foamable molded products of Comparative Examples 1 to 3, which contained powder with an oil absorption of less than 200 mL / 100 g, showed an increase in tablet hardness of less than 1 kgf compared to the foamable molded product of Comparative Example 4, which contained no powder. From these results, it was considered that powder with an oil absorption of 200 mL / 100 g or more sufficiently retains the flavor, thereby improving the tablet hardness of the foamable molded products.

[0080] Test Example 2 (Examples 8 and 9, Comparative Example 5) Each raw material was weighed according to the composition shown in Table 2, and a powder mixture (bath agent composition) was prepared in a mixer to make it uniform. This powder mixture was compressed using a powder molding press (Labopress LP-100, manufactured by LabNect) at a tableting pressure of 2.6 t to produce tablets with a diameter of 30 mm, a thickness of 15 mm, a tablet weight of 15 g per tablet, and a density of 1.4 g / cm. 3 A foamed molded product (foamed compression molded product) having a roughly cylindrical shape was produced.

[0081] The components used in Table 2 are as follows: [(A) Organic acid] Fumaric acid Succinic acid [(B) Carbonate] Sodium bicarbonate Sodium carbonate [(C) Powder] Silica anhydride 1: Fuji Silysia Chemical's "Sylsia 310P" (average particle size 2.7 μm) Silica anhydride 2: DSL Japan "Carplex #80" (average particle size 15.0 μm) Silica anhydride 6: DSL Japan's "Carplex BS303" (average particle size 14.0 μm) (control ingredient) [(D) Fragrance] Limonene (boiling point 175°C, vapor pressure at 25°C 1.54mmHg) Linalool (boiling point 199°C, vapor pressure at 25°C 0.0905mmHg) Galaxolide reagent: Approximately 50% diethyl phthalate solution of galaxolide (boiling point 326°C, vapor pressure 0.000414 mmHg at 25°C)

[0082] [Inorganic salts] Sodium sulfate [Binder] Polyethylene glycol (molecular weight 8300) Polyvinylpyrrolidone Dextrin [Pigment] Legal color: Yellow No. 202 (1) [lubricant] Liquid paraffin

[0083] [Table 2]

[0084] (Measurement of fragrance component concentration in the atmosphere) A 300 mL beaker containing 150 mL of hot water at 40°C and a circulation fan were placed in a 10 L Tedlar bag to simulate a bathroom. One tablet of each foamable molded product obtained in Examples 8 and 9 and Comparative Example 5 was placed in the beaker, and the Tedlar bag was quickly sealed while containing a moderate amount of air. After the entire amount of foamable molded product was dissolved, air was pumped into the Tedlar bag to make the sealed space 10 L. Ten minutes and two hours after making the sealed space 10 L, 50 mL of air was aspirated and collected from the Tedlar bag using a gas sampler (GASTEC) equipped with a sample concentration syringe needle (NeedlEx® for organic solvents, Shinwa Chemical Industry Co., Ltd.) at its tip. Peak areas corresponding to the fragrance components limonene, linalool, and galaxolide contained in the collected air were analyzed by gas chromatography, and the initial (after 10 minutes) and 2-hour GC peak area values ​​for each fragrance component were obtained. The Tedlar bag was kept sealed until the end of the test, except when the air inside the bag was collected. The above test was carried out twice for each foamed molded product, and the average value of the GC peak area values ​​obtained was calculated. The ratio of the GC peak area value of each fragrance component in the atmosphere to the initial value was calculated according to the following formula. The results are shown in Table 3. The ratio of the GC peak area value to the initial value serves as an index of the rate of change in the concentration of the fragrance component in the atmosphere from the initial period (10 minutes) to 2 hours after dissolution of the foamable molded product. Percentage of GC peak area value of fragrance component to initial value (%) = (GC peak area value after 2 hours / initial GC peak area value) × 100

[0085] The analytical conditions for gas chromatography are shown below. [Analysis conditions] Detector: Hydrogen flame ionization detector Column: DB-17 (122-1732), manufactured by Agilent Technologies, length 30 m, inner diameter 0.250 mm, film thickness 0.25 μm Vaporization chamber temperature: 200℃ Detector temperature: 250℃ Column temperature: 50°C (5 min) → 8°C / min heating rate → 250°C (5 min) Carrier gas: Helium Column flow rate: 1.5 mL / min

[0086] [Table 3]

[0087] (Measurement of the amount of fragrance components attached to the wall) 0.01 g of n-butyl benzoate was measured out and diluted with acetone to a volume of 50 mL to prepare a solution. 5 mL of this solution was diluted with acetone to a volume of 20 mL to prepare the internal standard solution. A 300 mL beaker containing 150 mL of 40°C hot water and a circulation fan were placed in a 10 L Tedlar bag to simulate a bathroom. One tablet of each foamable molded product obtained in Example 8 and Comparative Example 5 was placed in the beaker, and the Tedlar bag was quickly sealed while containing a moderate amount of air. After the entire amount of foamable molded product was dissolved, air was pumped into the Tedlar bag to make the sealed space 10 L. Two hours after making the sealed space 10 L, the Tedlar bag was opened, and the entire interior of the Tedlar bag simulating the inner wall surface of a bathroom was wiped with absorbent cotton soaked in acetone. The absorbent cotton was washed with 100 mL of acetone, and the resulting cleaning solution was transferred to a 200 mL eggplant flask, and the acetone was distilled off under reduced pressure using a rotary evaporator. After distillation under reduced pressure, 2 mL of the internal standard solution was added to the eggplant flask and shaken. The resulting solution was used as a sample. The GC peak area values ​​corresponding to the fragrance components limonene, linalool, and galaxolide contained in the sample, as well as the GC peak area value corresponding to the internal standard (n-butyl benzoate), were analyzed by gas chromatography. The above tests were performed twice for each foamed molded product, and the average of the obtained GC peak area values ​​was calculated. The normalized GC peak area value of each fragrance component in the sample was calculated according to the following formula. The results are shown in Table 4. The normalized GC peak area value is an index of the amount of fragrance component adhering to the inner wall surface of the bathroom 2 hours after dissolution of the foamable molding. Normalized GC peak area value of fragrance component = GC peak area value of fragrance component / GC peak area value of internal standard substance

[0088] The analytical conditions for gas chromatography are shown below. [Analysis conditions] Detector: Hydrogen flame ionization detector Column: DB-17 (122-1732), manufactured by Agilent Technologies, length 30 m, inner diameter 0.250 mm, film thickness 0.25 μm Vaporization chamber temperature: 200℃ Detector temperature: 250℃ Column temperature: 50°C (5 min) → 8°C / min heating rate → 250°C (5 min) Carrier gas: Helium Column flow rate: 1.5 mL / min

[0089] [Table 4]

[0090] In the measurement of the concentration of fragrance components in the above atmosphere, the expandable molded products of Examples 8 and 9, which contained powder with an oil absorption of 200 mL / 100 g or more, had a higher ratio of the GC peak area value of the fragrance component 2 hours after dissolution to the initial value at the beginning of dissolution, compared to the expandable molded product of Comparative Example 5, which contained powder with an oil absorption of less than 200 mL / 100 g. Thus, the measurement of the concentration of fragrance components in Test Example 2 produced the same results as those confirmed in the fragrance intensity evaluation in Test Example 1. Among the fragrance ingredients limonene, linalool, and galaxolide used in Test Example 2, those with lower vapor pressures tended to have higher GC peak area values ​​relative to the initial value. In particular, for linalool and galaxolide, the GC peak area values ​​after 2 hours of dissolution increased compared to the GC peak area values ​​at the initial stage of dissolution in Examples 8 and 9. This is presumably because the fragrance is diffused by the powder with an oil absorption of 200 mL / 100 g or more, making it easier for linalool and galaxolide, which have relatively low vapor pressures, to evaporate more continuously.

[0091] Furthermore, in the measurement of the amount of fragrance component attached to the wall surface, the foamable molded product of Example 8, which contains powder with an oil absorption of 200 mL / 100 g or more, had higher normalized GC peak area values ​​for each fragrance component two hours after dissolution than the foamable molded product of Comparative Example 5, which contains powder with an oil absorption of less than 200 mL / 100 g. That is, the foamable molded product of Example 8 had a larger amount of fragrance component attached to the inside of a Tedlar bag simulating the inner wall surface of a bathroom two hours after dissolution than the foamable molded product of Comparative Example 5. From these results, it is presumed that when the foamable molded product is dissolved in water, powder with an oil absorption of 200 mL / 100 g or more floats up while still retaining the fragrance, diffusing the fragrance and increasing the amount of fragrance attached to the wall surface, particularly in bathrooms, making the fragrance last longer.

Claims

1. A foamable molded product comprising (A) an organic acid, (B) a carbonate, (C) a powder having an oil absorption of 200 mL / 100 g or more, and (D) a fragrance.

2. A method for sustaining the fragrance of a perfume by using a powder having an oil absorption of 200 mL / 100 g or more under gas generation due to foaming.

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