JP2022086404A - Discharge product - Google Patents

Abstract

To provide a discharge product that makes it possible to obtain a fine foamy discharge material despite the fact that a foamy composition is discharged by using compressed gas.SOLUTION: The discharge product includes a foaming composition composed of a source liquid, including a foaming agent and a compressed gas, and a discharge container filled with the foaming composition. The discharge container includes a container body and a valve attached to the container body and having a discharge passageway formed for externally discharging the foaming composition. The valve includes a housing and a tubing member attached to the housing for incorporating the foaming composition into the housing. The tubing member is configured by forming a gas phase introduction hole for opening into a gas phase portion of the foaming composition charged into the container body and for introducing the gas phase portion, and a liquid phase introduction hole for opening into a liquid phase portion of the foaming composition charged into the container body and for introducing the liquid phase portion. The tubing member includes a mixing chamber for mixing the introduced gas phase portion of the foaming composition with the liquid phase portion. The ratio of the length to the cross-sectional area of the mixing chamber (length/cross-sectional area) is from 2 to 500.SELECTED DRAWING: Figure 1

Description

The present invention relates to a discharge product. More specifically, the present invention relates to a discharge product capable of discharging finer bubbles than before by using compressed gas.

Conventionally, a discharge product has been developed in which a stock solution is foamed and discharged by a liquefied gas such as liquefied petroleum gas. In such a discharged product, a liquid liquefied gas and an undiluted solution are mixed in the container, and when discharged to the outside, the liquefied gas evaporates and expands to obtain a fine foam-like discharged product. be able to. By the way, there is an attempt to reduce the amount of liquefied gas used due to concerns about environmental problems in recent years.

However, when a compressed gas is used instead of the liquefied gas, it is difficult to obtain a fine foamy discharge because the compressed gas is hardly dissolved in the undiluted solution. Therefore, Patent Document 1 discloses an apparatus for forming a microfoam using an effervescent liquid and a pressurized gas. This device introduces the pressurized gas from the inlet into the gas conduit, introduces the effervescent liquid from the inlet of the immersion tube, mixes at the gas / liquid junction and then introduces into the microfoam. The microfoam portion comprises a spatial vibration flow path, and the effervescent liquid and gas form microfoams. Further, Patent Document 2 discloses a dispenser capable of discharging fine foam without using a liquefied gas. This dispenser is equipped with a tube with a foaming part that produces foam from a surfactant solution and gas, where the foaming part contains a foaming accelerator (multiple spherical beads) to provide a specific porosity. Has internal dimensions including.

Special Table 2020-512192 Special Table 2016-504971

However, the inventions described in Patent Documents 1 and 2 have a complicated structure and are difficult to manufacture.

The present invention has been made in view of such conventional problems, and a foamable composition using a compressed gas is discharged without using a complicated structure to obtain a fine foam-like discharged product. It is an object of the present invention to provide a discharge product capable of producing.

The present invention that solves the above problems mainly includes the following configurations.

(1) An effervescent composition composed of a stock solution containing a foaming agent and a compressed gas, and a discharge container filled with the effervescent composition are provided, and the discharge container is attached to the container body and the container body. A valve having a discharge passage for discharging the foamable composition to the outside is provided, and the valve is attached to a housing and the housing to take the foamable composition into the housing. The tube member is provided with a gas phase introduction hole for opening the gas phase portion of the foamable composition filled in the container body and introducing the gas phase portion, and the container. An opening is formed in the liquid phase portion of the effervescent composition filled in the main body, and a liquid phase introduction hole for introducing the liquid phase portion is formed, and the gas of the effervescent composition introduced is formed. A discharge product comprising a mixing chamber for mixing the phase portion and the liquid phase portion, and the ratio of the length (length / cross-sectional area) to the cross-sectional area of the mixing chamber is 2 to 500.

According to such a configuration, when the valve is opened, the pressure inside the container body causes the gas phase portion of the foamable composition introduced from the gas phase introduction hole and the liquid phase introduction hole in the mixing chamber of the tube member. The liquid phase portion of the introduced effervescent composition is automatically mixed. In particular, since the length with respect to the cross-sectional area of the mixing chamber is a specific ratio, the compressed gas that mainly constitutes the gas phase portion and the undiluted solution that mainly constitutes the liquid phase portion have flow path resistance when passing through the mixing chamber. It is mixed and flows outward while foaming. As a result, the effervescent composition to be discharged tends to obtain a fine foam-like discharged product.

(2) The discharge product according to (1), wherein the cross-sectional area of the mixing chamber is 0.2 to 50 mm ² .

According to such a configuration, the undiluted solution and the compressed gas are likely to be appropriately mixed by receiving the flow path resistance in the mixing chamber. Therefore, the compressed gas is more foamed in the mixing chamber. As a result, the effervescent composition to be discharged tends to obtain a finer foam-like discharged product.

(3) The discharge product according to (1) or (2), wherein the length of the mixing chamber is 10 to 200 mm.

According to such a configuration, a mixing chamber having a sufficient length and volume is likely to be formed in the container body. Therefore, in the mixing chamber, the compressed gas and the undiluted solution are easily mixed and discharged in a sufficiently foamed state. As a result, the effervescent composition to be discharged is more likely to obtain a finer foam-like discharged product.

(4) The housing is formed with a gas phase communication hole that communicates with the gas phase portion of the foamable composition filled in the container body, and the valve is an opening / closing member that opens and closes the gas phase communication hole. The opening / closing member closes the gas phase communication hole when the foamable composition is discharged, and opens the gas phase communication hole when the foamable composition is not discharged. (1) The discharge product according to any one of (3).

According to such a configuration, when the discharge operation is completed, the gas phase communication hole is opened. As a result, the inside of the housing and the gas phase portion of the container body communicate with each other, and the pressure inside the housing and the mixing chamber of the tube member becomes the same as that of the gas phase portion. As a result, the height of the liquid level of the mixture remaining in the mixing chamber (the mixture of the undiluted solution and the compressed gas that remained in the mixing chamber without being discharged by the previous discharge) becomes the liquid level height of the liquid phase portion in the container body. It descends to align with it. As a result, the mixing chamber changes from a liquid-tight state of the mixture to a state of having some space. Since the mixing chamber provided with such a space is not in a liquidtight state, it is easy to mix the undiluted solution and the compressed gas when they are newly taken in in the next discharge operation. As a result, even in the case of repeated use, the foam state tends to be uniform, and fine foam-like ejected products can be easily obtained repeatedly.

According to the present invention, there is provided a discharge product capable of obtaining a fine foam-like discharge without providing a complicated foam passage, even though the foamable composition is discharged using a compressed gas. can do.

FIG. 1 is a schematic cross-sectional view of a discharge container according to an embodiment of the present invention (first embodiment). FIG. 2 is a schematic cross-sectional view for explaining the state of the stem rubber and the gas phase communication hole at the time of ejection. FIG. 3 is a schematic cross-sectional view for explaining the state of the stem rubber and the gas phase communication hole at the time of non-discharge. FIG. 4 is a schematic cross-sectional view of a discharge product according to an embodiment (second embodiment) of the present invention. FIG. 5 is a schematic cross-sectional view of a discharge product according to an embodiment (third embodiment) of the present invention.

[First Embodiment]
The discharge product of one embodiment (first embodiment) of the present invention includes a foamable composition composed of a stock solution containing a foaming agent and a compressed gas, and a discharge container filled with the foamable composition. The discharge container includes a container main body and a valve attached to the container main body and formed with a discharge passage for discharging the effervescent composition to the outside. The valve comprises a housing and a tube member attached to the housing for taking the effervescent composition into the housing. The tube member opens in the gas phase portion of the foamable composition filled in the container body, and has a gas phase introduction hole for introducing the gas phase portion and a liquid phase portion of the foamable composition filled in the container body. A liquid phase introduction hole for introducing a liquid phase portion is formed. The tube member comprises a mixing chamber for mixing the gas phase portion and the liquid phase portion of the introduced effervescent composition. Each will be described below.

<Effervescent composition>
The effervescent composition is a content to be filled in the container body, and is composed of a stock solution containing a foaming agent and a compressed gas.

(Undiluted solution)
The undiluted solution is mixed with the compressed gas in the mixing chamber, foams, and is discharged to the outside in the form of bubbles. The undiluted solution contains a foaming agent. The foaming agent is used for the purpose of foaming the undiluted solution in the mixing chamber to form fine foam.

The foaming agent is not particularly limited. For example, the foaming agent is an interface such as a nonionic surfactant, an anionic surfactant, a cationic surfactant, an amphoteric surfactant, a silicone-based surfactant, and a natural-based surfactant. It is an activator.

The nonionic surfactant is not particularly limited. For example, the nonionic surfactant is a polyoxyethylene polyoxypropylene alkyl ether such as POE / POP cetyl ether, POE / POP decyltetradecyl ether; POE cetyl ether, POE stearyl ether, POE oleyl ether, POE. Ether types such as polyoxyethylene alkyl ethers such as lauryl ether, POE behenyl ether, POE octyldodecyl ether, POE isocetyl ether, POE isostearyl ether; polyethylene glycol fatty acid esters such as polyethylene glycol monostearate; POE cured castor oil, etc. Polyoxyethylene glycerin fatty acid esters such as POE glyceryl monostearate and POE glyceryl monooleate; polyoxyethylene alkyl ether fatty acid esters such as POE cetyl ether stearate and POE lauryl ether isostearate; Polyoxyethylene sorbitan fatty acid esters such as oil fatty acid POE sorbitan, POE sorbitan monostearate, POE sorbitan monooleate, POE sorbitan triisostearate; Oxyethylene sorbit fatty acid ester; hexaglyceryl monolaurate, hexaglyceryl monomyristate, pentaglyceryl monolaurate, pentaglyceryl monomyristate, pentaglyceryl monooleate, pentaglyceryl monostearate, decagluceryl monolaurate, decaglyceryl monomyristine, Polyglycerin fatty acid esters such as decaglyceryl monostearate, decaglyceryl monoisostearate, decaglyceryl monooleate, and decaglyceryl monolinolate; ester types such as polyoxyethylene lanolin alcohol such as POE lanolin alcohol.

The anionic surfactant is not particularly limited. As an example, the anionic surfactant is a fatty acid such as lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, behenic acid, oleic acid, linoleic acid, and linoleic acid, and sodium hydroxide and hydroxide. Sodium dodecyl sulfate such as potassium, monoethanolamine, diethanolamine, triethanolamine, trimethylamine, and triethylamine; alkyl phosphates such as potassium lauryl phosphate and sodium lauryl phosphate; polyoxy such as POE lauryl ether sodium phosphate. Ethdium alkyl ether sulfate; alkyl sulfates such as ammonium lauryl sulfate, potassium lauryl sulfate, sodium lauryl sulfate, triethanolamine lauryl sulfate, sodium cetyl sulfate; POE sodium lauryl ether sulfate, POE lauryl ether sulfate triethanolamine, POE alkyl ether Polyoxyethylene alkyl ether sulfates such as sodium sulfate and POE alkyl ether sulfate triethanolamine; alkyl ether sulphates such as POE sodium lauryl ether acetate, POE sodium lauryl ether acetate, POE tridecyl ether potassium acetate, and POE tridecyl ether sodium acetate. Sodium lauryl sulfosulfate, sodium tetradecyl sulnate, sodium sulfosuccinate dioctyl, dialkyl sulfosuccinate sodium, alkylnaphthalene sulphate sodium, alkyldiphenyl ether disulfate sodium, alcan sulfonate sodium, dodecyl benzene sulphonic acid, dodecyl sulfur sulphonic acid. Examples thereof include sulfonates such as sodium. In addition, N-coconut oil fatty acid acyl-L-glutamic acid triethanolamine, N-coconut oil fatty acid acyl-L-potassium glutamate, N-coconut oil fatty acid acyl-L-sodium glutamic acid, N-lauroyl-L-glutamic acid triethanolamine. , N-acyls such as N-lauroyl-L-potassium glutamate, N-lauroyl-L-sodium glutamic acid, N-myristoyl-L-potassium glutamate, N-myristoyl-L-sodium glutamate, N-stearoyl-L-sodium glutamate. Glutamic acid; N-acylglycine salts such as N-coconut oil fatty acid acylglycine potassium, N-coconut oil fatty acid acylglycine sodium; N-acylalanine salts such as N-coconut oil fatty acid acyl-DL-alanine triethanolamine; lauroyl Amino acid-type surfactants such as acylalanine salts such as methylalanine sodium.

The cationic surfactant is not particularly limited. As an example, the cationic surfactant is an alkylammonium salt such as stearyltrimethylammonium chloride, an alkylbenzylammonium salt and the like.

The amphoteric tenside agent is not particularly limited. For example, amphoteric surfactants include lauryldimethylaminoacetic acid betaine (laurylbetaine), stearylbetaine, lauric acid amide propylbetaine, laurylhydroxysulfobetaine, stearyldimethylaminoacetic acid betaine, dodecylaminomethyldimethylsulfopropylbetaine, octadecyl. Alkyl betaines such as aminomethyldimethylsulfopropyl betaine; betaine types such as coconut acid amide propyl betaine, coconut oil fatty acid amide propyl dimethylaminoacetic acid betaine (cocamidopropyl betaine), and fatty acid amide propyl betaine such as cocamidopropyl hydroxysultaine; Alkylimidazole type such as 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine; amino acid type such as sodium lauroyl glutamate, potassium lauroyl glutamate, lauroylmethyl-β-alanine; lauryldimethylamine N-oxide, oleyl Amino acid type such as dimethylamine N-oxide; etc.

The silicone-based surfactant is not particularly limited. For example, silicone-based surfactants include polyoxyethylene / methylpolysiloxane copolymers, polyoxypropylene / methylpolysiloxane copolymers, poly (oxyethylene / oxypropylene) / methylpolysiloxane copolymers, and the like. Is.

The natural surfactant is not particularly limited. For example, natural surfactants include sodium surfactin, cyclodextrin, hydrogenated enzyme soybean lecithin and the like.

The content of the foaming agent is not particularly limited. As an example, the content of the foaming agent is preferably 1% by mass or more, and more preferably 3% by mass or more in the undiluted solution. The content of the foaming agent is preferably 30% by mass or less, more preferably 25% by mass or less in the undiluted solution. When the content of the foaming agent is within the above range, the undiluted solution can obtain excellent foaming power and easily form fine bubbles. In addition, the obtained ejected material is less likely to remain on the application site such as the skin, is less likely to cause stickiness, and has an excellent usability.

The solvent is suitably blended in the undiluted solution. The solvent is not particularly limited. For example, the solvent is water or alcohol. As the solvent, water and alcohol may be used in combination.

Water is not particularly limited. For example, water is purified water, ion-exchanged water, deep sea water, and the like.

When water is contained, the content of water is not particularly limited. As an example, the content of water in the undiluted solution is preferably 40% by mass or more, more preferably 50% by mass or more. The content of water in the undiluted solution is preferably 95% by mass or less, more preferably 90% by mass or less. When the water content is within the above range, the obtained discharge is likely to foam. In addition, the effervescent composition can easily contain other components.

Alcohol is not particularly limited. As an example, the alcohol is a monohydric alcohol, a polyhydric alcohol, or the like.

The monohydric alcohol is used not only for the purpose of improving the usability but also for the purpose of dissolving the active ingredient which is difficult to dissolve in the solvent and adjusting the foaming state of the discharged product.

The monohydric alcohol is not particularly limited. As an example, the monohydric alcohol is a monohydric alcohol having 2 to 3 carbon atoms such as ethanol and isopropanol.

The polyhydric alcohol is used for the purpose of adjusting the foaming state of the discharged product.

The polyhydric alcohol is not particularly limited. As an example, the polyhydric alcohol is a 2- to 4-valent alcohol such as propylene glycol, 1,3-butylene glycol, hexylene glycol, glycerin, dipropylene glycol, and diglycerin.

When alcohol is contained, the content of alcohol is not particularly limited. As an example, the content of alcohol in the undiluted solution is preferably 1% by mass or more, and more preferably 3% by mass or more. The alcohol content in the undiluted solution is preferably 30% by mass or less, more preferably 25% by mass or less. When the content of alcohol is within the above range, the effervescent composition is easy to obtain the effect of blending alcohol and has excellent effervescence.

The undiluted solution of the present embodiment may contain an active ingredient, a water-soluble polymer, a monosaccharide, an oil component, a powder, or the like, depending on the intended use and purpose.

The active ingredient is not particularly limited. For example, the active ingredients are various fragrances such as natural fragrances and synthetic fragrances; refreshing agents such as l-menthol, camphor, peppermint oil; retinol, retinol acetate, retinol palmitate, calcium pantothenate, magnesium ascorbate phosphate. , Sodium ascorbate, dl-α-tocopherol, tocopherol acetate, tocopherol, tocopherol nicotinate, dibenzoylthiamine, riboflavin and vitamins such as mixtures thereof; ascorbic acid, α-tocopherol, dibutylhydroxytoluene, butylhydroxyanisole and the like. Antioxidants; Amino acids such as glycine, alanine, leucine, serine, tryptophan, cysteine, methionine, aspartic acid, glutamic acid, arginine; collagen, hyaluronic acid, caronic acid, sodium lactate, dl-pyrrolidone carboxylate, keratin, casein, Moisturizers such as lecithin and urea; preservatives such as paraoxybenzoic acid ester and phenoxyethanol; bactericidal and disinfectants such as sodium benzoate, potassium sorbate, benzalconium chloride, benzethonium chloride, chlorhexidine chloride and parachlormethacrezole; royal jelly extract , Shakyaku extract, Hechima extract, Rose extract, Lemon extract, Aloe extract, Shobu root extract, Eucalyptus extract, Sage extract, Tea extract, Seaweed extract, Placenta extract, Silk extract, etc. Astringents such as acid, citric acid, lactic acid; anti-inflammatory agents such as allantin, glycyrrhetinic acid, dipotassium glycyrrhizinate, azulene; methacrylate methacrylate, methyl benzoate, methyl phenylacetate, geranylcrotolate, acetophenone myristate, benzyl acetate, Deodorants such as benzyl propionate, green tea extract; UV rays such as hexyl diethylaminohydroxybenzoyl benzoate, 2-ethylhexyl paramethoxysilicate, ethylhexyltriazone, oxybenzone, hydroxybenzophenone sulfonic acid, sodium dihydroxybenzophenone sulfonate, dihydroxybenzophenone Absorbent; UV scatterer such as zinc oxide, titanium oxide, octyltrimethoxysilane coated titanium oxide; whitening agent such as arbutine and kodiic acid.

When the active ingredient is contained, the content of the active ingredient is preferably 0.05% by mass or more, more preferably 0.1% by mass or more in the undiluted solution. The content of the active ingredient is preferably 20% by mass or less, more preferably 15% by mass or less. When the content of the active ingredient is within the above range, the effervescent composition can easily obtain the desired effect by blending the active ingredient.

The water-soluble polymer is used for the purpose of adjusting the foaming state of the discharged product, such as increasing the foam retention.

The water-soluble polymer is not particularly limited. As an example, the water-soluble polymers include hydroxyethyl cellulose dimethyldiallyl ammonium chloride (polyquaternium 4), dimethyldiacrylic ammonium chloride / acrylamide copolymer (polyoctanium 7), and -O- [2-hydroxy-3-chloride]. (Trimethylammonio) propyl] hydroxyethyl cellulose (polyquantanium 10), dimethyldiallylammonium chloride / acrylic acid copolymer (polyquantanium 22), chloride-O- [2-hydroxy-3- (lauryldimethylammonio) propyl] hydroxyethyl cellulose (Polyoctanium 24), acrylamide / acrylic acid / dimethyldiallyl ammonium chloride copolymer (polyquaterium 39), 2-methacryloyloxyethyl phosphorylcholine / butyl methacrylate copolymer solution (polyquaterium 51), N, N-dimethylaminoethylmethacryl Acid diethyl sulfate, N, N-dimethylacrylamide, dimethacrylate polyethylene glycol (polyquaterium 52), 2-methacryloyloxyethyl phosphorylcholine, stearyl methacrylate copolymer (polyquaterium 61), methacryloyloxyethylene phosphorylcholine, butyl methacrylate and methacryl Sodium acid (polyquaternium 65), polyvinylpyrrolidone / N, N-dimethylaminoethyl methacrylate copolymer diethylsulfate, polyvinylpyrrolidone / N, N-dimethylaminoethyl methacrylate copolymer dimethylsulfate, polyvinylpyrrolidone / N, Cationic polymers such as N-dimethylaminoethyl methacrylate copolymer hydrochloride, hydroxyethyl cellulose hydroxypropyltrimethylammonium chloride ether; cellulose-based polysaccharides such as hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, sodium carboxymethyl cellulose; carrageenan , Xanthan gum, Arabic gum, tragant rubber, cationized gua gum, gua gum, gellan gum, locust bean gum and other gums; gelatin, dextran, carboxymethyl dextran sodium, dextrin, pectin, starch, corn starch, wheat starch, sodium alginate, modified potato Starch, hyaluronic acid, sodium hyaluronate, polyvinyl alcohol, polyvinylpyrrolidone, polymer Boxy vinyl polymer and the like. Among these, as the water-soluble polymer, it is preferable to use a cationic polymer from the viewpoint of excellent foamability of the discharged product.

When the water-soluble polymer is contained, the content of the water-soluble polymer is not particularly limited. As an example, the content of the water-soluble polymer is preferably 0.001% by mass or more, and more preferably 0.005% by mass or more in the undiluted solution. The content of the water-soluble polymer is preferably 5% by mass or less, and more preferably 3% by mass or less in the undiluted solution. When the content of the water-soluble polymer is within the above range, the effervescent composition can easily obtain the effect of containing the water-soluble polymer. In addition, the obtained ejected material is less likely to remain on the application site such as the skin, is less likely to cause stickiness, and has an excellent usability.

Monosaccharides are used for the purpose of adjusting the foaming state of the discharged product, such as increasing the foam retention.

The monosaccharide is not particularly limited. For example, the monosaccharides are sugar alcohols such as erythritol, arabitol, galactitol, glucitol, martitol, mannitol, sorbitol, xylitol; erythritol, D-erythrose, tetroses such as D-treose; D-arabinose, L. -Pentoses such as arabinose, D-xylose, D-lyxose, L-lyxose, D-ribose, D-xylrose, L-xylrose, D-librose, L-librose; D-altrose, L-altrose, D -Hexoses such as galactose, L-galactose, D-glucose, D-talose, D-mannose, L-sorbose, D-tagatose, D-psicose, D-fructos, and D-mannose.

When the monosaccharide is contained, the content of the monosaccharide is not particularly limited. As an example, the content of monosaccharide is preferably 0.1% by mass or more, and more preferably 0.5% by mass or more in the undiluted solution. The content of the monosaccharide is preferably 20% by mass or less, more preferably 15% by mass or less in the undiluted solution. When the content of the monosaccharide is within the above range, the effervescent composition can easily obtain the effect of containing the monosaccharide.

The oil content is used for the purpose of adjusting the foaming state.

The oil content is not particularly limited. For example, the oil content is a hydrocarbon oil such as liquid paraffin, squalane, squalane, isoparaffin; diisopropyl adipate, isopropyl myristate, isopropyl palmitate, cetyl octanate, octyldodecyl myristate, butyl stearate, myristyl myristate. , Decyl oleate, cetyl lactate, isocetyl stearate, cetostearyl alcohol, diisopropyl adipate, diisobutyl adipate, diisopropyl sebacate, diethyl sebacate, diethylhexyl sebacate, diethylhexyl succinate, diethoxyethyl succinate, malic acid Diisostearyl, cyclohexane 1,4-dicarboxylic acid bisethoxydiglycol, cyclohexanedicarboxylic acid bisethoxydiglycol, eicosandioic acid-polyglyceryl tetradecanedioate, cyclohexanedicarboxylic acid bisethoxydiglycol, dineopenate diethylpentanediol, methyl dineopenate Ester oils such as pentanediol; methylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, methylcyclopolysiloxane, tetrahydrotetramethylcyclotetrasiloxane, octamethyltrisiloxane, decamethyltetra Silicone oils such as siloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, polyglycerol-modified silicone; higher alcohols such as lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, lanolin alcohol; liquid fatty acids such as isostearic acid; Fats and oils such as avocado oil, macadamia nut oil, shea butter, olive oil, and camellia oil; waxes such as honey wax and lanolin wax.

When the oil content is contained, the oil content is not particularly limited. As an example, the oil content is preferably 0.1% by mass or more, more preferably 0.3% by mass or more in the undiluted solution. The oil content is preferably 20% by mass or less, more preferably 15% by mass or less in the undiluted solution. When the oil content is within the above range, the effervescent composition can easily obtain the effect of blending the oil content.

The powder is used for the purpose of improving the usability such as improving the slipperiness.

The powder is not particularly limited. For example, the powders are talc, zinc oxide, titanium oxide, kaolin, mica, magnesium carbonate, calcium carbonate, zinc silicate, magnesium silicate, aluminum silicate, calcium silicate, silica, zeolite, ceramic powder, Charcoal powder, nylon powder, silk powder, urethane powder, silicone powder, polyethylene powder, etc.

When the powder is contained, the content of the powder is not particularly limited. As an example, the content of the powder is preferably 0.1% by mass or more, more preferably 0.3% by mass or more in the undiluted solution. The powder content is preferably 5% by mass or less, and more preferably 3% by mass or less. When the content of the powder is within the above range, the effervescent composition can easily obtain the effect of containing the powder. In addition, the powder does not easily accumulate in the mixing chamber.

Returning to the description of the whole undiluted solution, the content of the undiluted solution is not particularly limited. As an example, the undiluted solution is preferably 90% by mass or more, more preferably 92% by mass or more in the effervescent composition. The undiluted solution is preferably 99.99% by mass or less, more preferably 99.98% by mass or less in the effervescent composition. When the content of the undiluted solution is within the above range, the effervescent composition is easily mixed with the compressed gas in the mixing chamber and is easily foamed. In addition, the effervescent composition tends to form fine bubbles.

The method for preparing the undiluted solution is not particularly limited. As an example, the undiluted solution can be prepared by dissolving a foaming agent, an active ingredient, or the like in a solvent.

(Compressed gas)
The compressed gas pressurizes the undiluted solution filled in the discharge container to supply the undiluted solution to the mixing chamber through the liquid phase introduction hole, and also supplies the compressed gas itself to the mixing chamber through the gas phase introduction hole. It is blended to foam the undiluted solution and discharge the foam to the outside.

The compressed gas is not particularly limited. As an example, the compressed gas is nitrogen gas, compressed air, carbon dioxide gas, sulfite nitrogen gas, oxygen gas and the like, and nitrogen gas and compressed air are preferable.

The equilibrium pressure of the compressed gas is not particularly limited. As an example, the compressed gas is filled in the container body filled with the undiluted solution, and the equilibrium pressure in the container body at 25 ° C. is preferably 0.4 MPa or more, more preferably 0.45 MPa or more. preferable. The equilibrium pressure of the compressed gas in the container body at 25 ° C. is preferably 2.0 MPa or less, more preferably 1.5 MPa or less.

In order to adjust the pressure inside the container body, adjust the foaming state, etc., trans-1-chloro-3,3,3-trifluoropropene (HFO-1233zd (E), boiling point 19 ° C.), Further filled with hydrofluoroolefins such as cis-1-chloro-3,3,3-trifluoropropene (HFO-1233zd (Z), boiling point 39 ° C.) and mixtures thereof, hydrocarbons such as isopentane and normal pentane, and the like. May be.

Returning to the description of the effervescent composition as a whole, the method for preparing the effervescent composition is not particularly limited. As an example, the effervescent composition can be produced by filling a container body with a stock solution, attaching a valve to the container body, and then filling with a compressed gas.

<Discharge container>
The discharge container of the present embodiment is a container filled with the above-mentioned effervescent composition. FIG. 1 is a schematic cross-sectional view of the discharge container 1 of the present embodiment. The discharge container 1 of the present embodiment includes a container main body 2 and a valve 3 attached to the container main body 2 and formed with a discharge passage for discharging the effervescent composition to the outside. The discharge product of the present embodiment is characterized in that a gas phase introduction hole P1 and a liquid phase introduction hole P2 are formed in the tube member 4 described later, and a mixing chamber 42 m is provided. Therefore, the design of the discharge product may be changed as appropriate for configurations other than these.

(Container body 2)
The container body 2 is a pressure-resistant container for filling the effervescent composition in a pressurized state. The container body 2 may have a general-purpose shape. For example, the container body 2 has a bottomed tubular shape having an opening at the top. The opening is a filling port for filling the undiluted solution. The container body 2 becomes a discharge container 1 by attaching a valve 3 described later to the opening and closing the valve 3.

The material of the container body 2 is not particularly limited. The container body 2 may have a pressure resistance sufficient to fill the effervescent composition in a pressurized state. Such materials include metals such as aluminum and tinplate, synthetic resins such as polyethylene terephthalate, and pressure-resistant glass.

(Valve 3)
The valve 3 is a member for closing and sealing the opening of the container body 2. Further, the valve 3 includes a housing 5, a stem 6 having a stem hole 62 communicating with the inside and outside of the container body 2, and a stem rubber 7 attached around the stem hole 62 to close the stem hole 62. , A tube member 4 attached to the housing 5 for taking the effervescent composition into the housing 5. The valve 3 is attached to the container body 2 by a mounting cup 8 for closing the opening of the container body 2.

・ Housing 5
The housing 5 has a substantially cylindrical shape and accommodates the stem 6 so as to be slidable in the vertical direction. The housing 5 is formed with a gas phase communication hole 51 that communicates with the gas phase portion of the foamable composition filled in the container body 2.

Further, a mixture introduction hole 52 for introducing an effervescent composition in which a stock solution and a compressed gas, which will be described later, are mixed into the housing 5 is formed on the bottom surface of the housing 5. A substantially cylindrical mounting portion 53 is provided on the lower surface of the housing 5. The mounting portion 53 is a portion into which one end of the second tube member 42 of the tube member 4 is inserted.

・ Stem 6
The stem 6 is a substantially cylindrical portion, and an in-stem passage 61 through which the foamable composition taken into the housing 5 at the time of ejection passes is formed. In the vicinity of the lower end of the in-stem passage 61, a stem hole 62 that communicates the space in the housing 5 with the in-stem passage 61 is formed. A discharge member 9 for discharging the foamable composition is attached to the upper end of the stem 6.

The area of the stem hole is not particularly limited. As an example, the area of the stem hole is preferably 0.10 mm ² or more, and more preferably 0.15 mm ² or more. The area of the stem hole is preferably 2.0 mm ² or less, and more preferably 1.8 mm ² or less. The number and shape of stem holes are not particularly limited. The area of the stem holes is the total amount when there are a plurality of stem holes.

・ Stem rubber 7
The stem rubber 7 is attached around the stem hole 62 and is a member for appropriately blocking the internal space and the outside of the housing 5. The stem rubber 7 is a flexible disk-shaped member, and when not ejected, the inner peripheral surface of the stem 6 is brought into close contact with the outer peripheral surface of the stem 6 on which the stem hole 62 is formed, and the stem hole 62 is closed.

When the stem 6 slides downward during ejection, the inner peripheral edge of the stem rubber 7 bends downward. As a result, the stem hole 62 is opened by the bent stem rubber 7. As a result, the foamable composition taken in from the container body 2 passes through the discharge passage and is discharged to the outside.

・ Discharge member 9
The discharge member 9 is a member for discharging the foamable composition, and is attached to the upper end of the stem 6. The discharge member 9 mainly includes a nozzle unit 91 and an operation unit 92 operated by the user with a finger or the like. The nozzle portion 91 is a substantially cylindrical portion, and a discharge passage through which the effervescent composition passes is formed. An opening (discharge hole 93) is formed at the tip of the discharge passage. The foamable composition is discharged from the discharge hole 93. The number and shape of the discharge holes 93 are not particularly limited. The number of discharge holes 93 may be plurality. Further, the shape of the discharge hole 93 may be a substantially circular shape, a substantially angular shape, or the like.

・ Tube member 4
The tube member 4 is a member for mixing and foaming a compressed gas and an undiluted solution, and taking in the foam into the housing 5. That is, the effervescent composition filled in the container body 2 is separated into a compressed gas and a stock solution. In the tube member 4, these compressed gases and the undiluted solution are introduced from separate introduction holes (gas phase introduction hole P1 and liquid phase introduction hole P2), and the compressed gas and the undiluted solution are mixed and foamed in the mixing chamber 42 m.

The tube member 4 of the present embodiment includes a first tube member 41, a second tube member 42, and a connecting member 43 that connects the first tube member 41 and the second tube member 42.

The first tube member 41 has one end of which the gas phase introduction hole P1 is formed and the other end connected to the connecting member 43. The first tube member 41 of the present embodiment includes a tube main body 41b and a nozzle 41c attached to an end portion of the tube main body 41b. A gas phase introduction hole P1 is formed in the nozzle 41c. The gas phase introduction hole P1 is open in the gas phase portion (position above the liquid surface of the stock solution) in a state where the stock solution and the compressed gas are filled.

The dimensions of the first tube member 41 are not particularly limited. The length of the gas phase introduction hole P1 may be long enough to open in the gas phase portion. For example, the length of the first tube member 41 is preferably 10 mm or more, and more preferably 15 mm or more. preferable. The length of the first tube member 41 is preferably 150 mm or less, more preferably 140 mm or less. The area of the inner diameter of the first tube member 41 is preferably 0.1 mm ² or more, and more preferably 0.15 mm ² or more. The area of the inner diameter of the first tube member 41 is preferably 50 mm ² or less, and more preferably 20 mm ² or less.

The gas phase introduction hole P1 adjusts the amount of compressed gas introduced in the gas phase portion. The area of the gas phase introduction hole P1 is not particularly limited. As an example, the area of the gas phase introduction hole P1 is preferably 0.01 mm ² or more, and more preferably 0.1 mm ² or more. Further, the area of the gas phase introduction hole P1 is preferably 5 mm ² or less, and more preferably 3 mm ² or less. The gas phase introduction hole P1 may be opened in the gas phase portion, and its position, number, and the like are not particularly limited.

The hole diameter of the gas phase introduction hole P1 is smaller than the inner diameter of the first tube member 41. Therefore, even when the discharge member 9 is toppled or shaken from the gas phase introduction hole P1, the liquid phase portion is difficult to be introduced, and only the gas phase portion is likely to be introduced. Further, the introduction amount of the gas phase can be easily adjusted by changing the hole diameter of the gas phase introduction hole P1.

The connecting member 43 is a member that connects the first tube member 41 and the second tube member 42. The connecting member 43 is formed with a first insertion portion 43p for inserting and fixing the first tube member 41 and a second insertion portion 43q for inserting and fixing the second tube member 42. .. Further, the connecting member 43 includes a main body portion 43u provided with a first insertion portion 43p and a second insertion portion 43q, and a bottom lid 43v attached to the bottom portion of the main body portion 43u. By attaching the bottom lid 43v to the main body portion 43u, an internal pipeline 43r connecting the first insertion portion 43p and the second insertion portion 43q is formed inside the connecting member 43. At the center of the bottom lid 43v, a liquid phase introduction hole P2 communicating from the inside of the container body 2 to the internal pipeline 43r is formed. The flow rate may be adjusted by changing the size of the holes between the first insertion portion 43p and the second insertion portion 43q and the connecting member 43.

The connecting member 43 is positioned so as to be immersed in the undiluted solution in the container body 2 by inserting the other end of the second tube member 42 having one end connected to the housing 5 into the second insertion portion 43q. There is. The liquid phase introduction hole P2 is an opening for introducing the undiluted solution, and is opened in the vicinity of the inner bottom surface of the container body 2. As a result, the undiluted solution can be easily introduced from the liquid phase introduction hole P2 even when the amount of the undiluted solution is reduced by use.

The liquid phase introduction hole P2 adjusts the amount of the undiluted solution introduced in the liquid phase portion. The inner area of the liquid phase introduction hole P2 is not particularly limited. As an example, the inner area of the liquid phase introduction hole P2 is preferably 0.01 mm ² or more, and more preferably 0.03 mm ² or more. Further, the inner area of the liquid phase introduction hole P2 is preferably 2 mm ² or less, and more preferably 1 mm ² or less.

The second tube member 42 has one end connected to the connecting member 43 and the other end inserted into the mounting portion 53 of the housing 5. The internal space of the second tube member 42 is a mixing chamber 42 m for mixing the compressed gas introduced from the gas phase introduction hole P1 and the undiluted solution taken in from the liquid phase introduction hole P2.

The dimensions of the second tube member 42 are not particularly limited. The length may be a mixture of the compressed gas and the undiluted solution. For example, the length of the second tube member 42 is preferably 10 mm or more, and more preferably 15 mm or more. The length of the second tube member 42 is preferably 200 mm or less, more preferably 150 mm or less. The inner area of the second tube member 42 is preferably 0.2 mm ² or more, and more preferably 0.5 mm ² or more. The inner area of the second tube member 42 is preferably 50 mm ² or less, more preferably 10 mm ² or less, and particularly preferably 5 mm ² or less.

Here, the length of the second tube member 42 of the present embodiment corresponds to the length of the mixing chamber 42 m, and the area of the inner diameter of the second tube member 42 corresponds to the cross-sectional area of the mixing chamber 42 m. .. The ratio of the length (length / cross-sectional area) to the cross-sectional area of the mixing chamber 42 m may be 2 or more, and more preferably 10 or more. The ratio (length / cross-sectional area) of the length of the mixing chamber 42 m to the cross-sectional area may be 500 or less, preferably 400 or less, and more preferably 300 or less. When the ratio of the length (length / cross section) to the cross section of the mixing chamber 42 m is within the above range, the undiluted solution and the compressed gas are easily mixed in the mixing chamber, and foaming is likely to occur. In particular, when the ratio of the length (length / cross-sectional area) to the cross-sectional area of the mixing chamber 42 m is 10 to 500, the discharged effervescent composition has a foam density smaller than 0.1 (g / mL). , It is easier to obtain fine foamy discharge.

<Explanation of discharge operation>
Next, a discharge operation when the foamable composition is discharged using the discharge product of the present embodiment will be described.

(Mechanism at the time of discharge)
In the discharge product of the present embodiment, when the discharge member 9 is pushed down, the stem 6 of the valve 3 is pushed down downward. As a result, the stem rubber 7 bends downward and the stem hole 62 is opened. As a result, the inside of the container body 2 and the outside communicate with each other. When the inside and the outside of the container body 2 communicate with each other, the liquid level of the undiluted solution is pressurized downward according to the pressure difference between the pressure of the compressed gas constituting the gas phase portion and the atmospheric pressure. At this time, the compressed gas constituting the gas phase portion is introduced into the first tube member 41 from the gas phase introduction hole P1 and passes through the inside of the first tube member 41 and the internal pipeline 43r of the connecting member 43. Toward the mixing chamber 42 m of the second tube member 42. On the other hand, the pressurized undiluted solution is introduced into the internal pipeline 43r of the connecting member 43 from the liquid phase introduction hole P2 of the connecting member 43, passes through the internal pipeline 43r, and enters the mixing chamber 42m of the second tube member 42. Head.

The compressed gas and the undiluted solution are introduced into the mixing chamber 42 m and head toward the housing 5. Further, when the compressed gas and the undiluted solution flow to the housing side in the mixing chamber 42 m, the flow velocity is limited due to the flow velocity resistance from the mixing chamber, so that the undiluted solution and the compressed gas are easily mixed, and due to the pressure difference from the outside. The compressed gas expands and easily foams, forming stable and fine bubbles.

The mixture of the compressed gas and the undiluted solution introduced into the housing 5 then passes through the stem hole 62 and the in-stem passage 61 and is sent to the discharge member 9. The effervescent composition incorporated into the discharge member 9 is discharged in the form of bubbles from the discharge hole 93.

Since the undiluted solution and the compressed gas are mixed and foamed in the mixing chamber 42 m, the effervescent composition of the present embodiment is almost foamy and foamy at the time of being discharged from the discharge hole 93. As a result, the resulting discharge becomes a fine foam, although it is not essential to use a liquefied gas.

(Mechanism at the time of non-discharge)
When the pushing down of the discharge member 9 is completed, the bending of the stem rubber 7 is eliminated, and the stem hole 62 is closed again. As a result, the container body 2 and the outside are shut off again, and the ejection of the effervescent composition ends.

When the discharge product of the present embodiment finishes the discharge operation and returns to the non-discharge state, a part of the mixture introduced into the mixing chamber 42 m is discharged so as to be pushed back into the container body 2. FIG. 2 is a schematic cross-sectional view for explaining the state of the stem rubber 7 and the gas phase communication hole 51 at the time of ejection. FIG. 3 is a schematic cross-sectional view for explaining the state of the stem rubber 7 and the gas phase communication hole 51 at the time of non-discharge.

As shown in FIG. 2, when the stem 6 is pushed downward during ejection, the inner peripheral edge of the stem rubber 7 bends. As a result, the bottom surface of the bent stem rubber 7 and the upper portion of the side peripheral wall of the housing 5 come into contact with each other, and the gas phase communication hole 51 is closed. As described above, since the gas phase portion and the inside of the housing 5 are closed at the time of discharge, the compressed gas in the gas phase portion is prevented from being taken into the housing 5 from the gas phase communication hole 51, and the first It will be introduced from the gas phase introduction hole P1 (see FIG. 1) of the tube member 41 of the above.

On the other hand, as shown in FIG. 3, when the ejection operation is completed, the bending of the stem rubber 7 is eliminated, the stem hole 62 (see FIG. 1) is closed, and the gas phase communication hole 51 is opened again. As described above, in the present embodiment, the stem rubber 7 functions as an opening / closing member for opening / closing the gas phase communication hole 51. As a result, the inside of the housing 5 and the gas phase portion of the container body 2 (see FIG. 1) communicate with each other, and the inside of the first tube member 41 and the inside of the second tube member 42 have the same pressure. As a result, the mixture remaining in the housing 5 or the mixing chamber 42m immediately after the discharge operation is completed (the mixture of the undiluted solution and the compressed gas remaining in the mixing chamber 42m without being discharged by the previous ejection) is a liquid. The height of the surface is lowered so as to be aligned with the liquid level height of the liquid phase portion in the container main body 2. As a result, the mixing chamber 42m has some space from the state where it was filled with the mixture. Since the mixing chamber 42m provided with such a space is not in a liquidtight state, it is easy to mix the undiluted solution and the compressed gas when they are newly taken in in the next discharge operation. As a result, even in the case of repeated use, the foam state tends to be uniform, and fine foam-like ejected products can be easily obtained repeatedly.

The method for manufacturing the discharge product of the present embodiment is not particularly limited. As an example, the discharged product can be prepared by filling the container body 2 with the undiluted solution, attaching the valve 3 to close the container body 2, and then filling the container body 2.

As described above, according to the present embodiment, in the mixing chamber 42 m of the tube member 4, the vapor phase portion of the effervescent composition introduced from the gas phase introduction hole P1 and the effervescent composition introduced from the liquid phase introduction hole P2. The liquid phase portion of the above is mixed. As a result, the compressed gas that mainly constitutes the gas phase portion is mixed with the undiluted solution that mainly constitutes the liquid phase portion and foams. As a result, the effervescent composition to be discharged tends to obtain a fine foam-like discharged product.

[Second Embodiment]
The discharge product of one embodiment (second embodiment) of the present invention is the same as the discharge product of the first embodiment except that the configuration of the tube member is different. Therefore, the description of the duplicated configuration is omitted as appropriate.

FIG. 4 is a schematic cross-sectional view of the discharge product of the present embodiment (second embodiment). In the discharge product of the present embodiment, the tube member 4a includes a first tube member 41a, a second tube member 42a, a connecting member 43a for connecting the first tube member 41a and the second tube member 42a, and a connecting member. It is composed of a third tube member 44a attached to 43a.

The first tube member 41a is the same as the first tube member 41 (see FIG. 1) of the first embodiment except that the length is short. Further, the second tube member 42a of the first embodiment has a second tube member 42 (Fig.) Except that the inner area (inner cross-sectional area in the radial direction) is small due to the short length and the large thickness of the second tube member 42a. 1) is the same.

In the connecting member 43a of the present embodiment, a through hole 43s penetrating in the bottom surface direction is formed in the bottom lid 43v. Further, a third insertion portion 43t for inserting the third tube member 44a is formed at a position corresponding to the through hole 43s. The through hole 43s acts as a liquid phase introduction hole P2 in which the undiluted solution introduced into the internal pipeline 43r controls the flow rate.

The third tube member 44a has one end formed with an opening for sucking the undiluted solution and the other end inserted into the third insertion portion 43t of the connecting member 43a. The opening is in the vicinity of the inner bottom surface of the container body 2. As a result, it is easy to introduce the undiluted solution from the opening even when the amount of the undiluted solution is reduced by use.

Since the length of the second tube member 42a is short in the tube member 4a of the present embodiment, the position of the connecting member 43a is higher than the position of the connecting member 43 in the first embodiment (see FIG. 1). It is separated from the inner bottom surface of the container body 2. Therefore, a third tube member 44a is attached to the connecting member 43a so that the opening for sucking up the undiluted solution opens in the vicinity of the inner bottom surface of the container body 2.

The lengths of the first tube member 41a and the second tube member 42a and the length of the third tube member 44a are appropriately adjusted depending on the desired length of the mixing chamber 42n and the degree of mixing. That is, as shown in FIGS. 1 and 4, the mixing chamber 42m of the first embodiment is longer than the mixing chamber 42n of the second embodiment, and the compressed gas and the undiluted solution can be sufficiently mixed. rice field. On the other hand, in the case of this embodiment, the inner area of the second tube member 42a (mixing chamber) is small. As a result, in the mixing chamber 42n of the second tube member 42a, the flow path resistance applied to the undiluted solution and the compressed gas can be increased, and even in the short mixing chamber 42n, the compressed gas and the undiluted solution are sufficiently mixed and foamed. I can let you. In such a case, since the length of the mixing chamber 42n may be short, the length of the mixing chamber 42n can be adjusted and the properties of the foam can be adjusted by appropriately using the third tube member 44a. can. Further, since the mixing chamber 42n has a small volume, the content remaining after injection is relatively small. As a result, as shown in FIG. 5, it is not necessary to provide the gas phase communication hole in the housing, and the foamable composition can be stably discharged.

[Third Embodiment]
The discharge product of one embodiment (third embodiment) of the present invention is the same as the discharge product of the first embodiment except that the configuration of the tube member and the housing is different. Therefore, the description of the duplicated configuration is omitted as appropriate.

FIG. 5 is a schematic cross-sectional view of the discharge product of the present embodiment (third embodiment). In the discharge product of the present embodiment, the tube member 4d includes a first tube member 41d, a second tube member 42d, a connecting member 43d for connecting the first tube member 41d and the second tube member 42d, and a first. It is composed of a holding member 45 for holding the tube member 41d and the second tube member 42d. The internal space of the second tube member 42d is a mixing chamber 42e for mixing the compressed gas introduced from the gas phase introduction hole P1 and the undiluted solution taken in from the liquid phase introduction hole P2.

The first tube member 41d and the second tube member 42d have a small inner diameter (that is, a small inner area), but the first tube member 41 and the second tube member 42 of the first embodiment (FIG. 1). See). As shown in FIG. 5, since the first tube member 41d and the second tube member 42d have small inner diameters, they are held adjacent to each other by the holding member 45. As a result, the first tube member 41d and the second tube member 42d, which have a small inner diameter and are thin, are stably positioned even in the container main body 2 and are less likely to bend. Further, when the tube can be held only by the tube or when the position is stably positioned by the holding member, the two tubes may not be adjacent to each other but may be separated from each other.

The connecting member 43d is formed with an insertion portion 43e into which the adjacent first tube member 41d and the second tube member 42d are inserted. Further, the connecting member 43d is provided with an internal pipeline 43f through which the gas phase portion of the compressed gas introduced by the first tube member 41d passes toward the second tube member 42d. Further, a nozzle 43g is attached to the bottom of the connecting member 43d. A liquid phase introduction hole P2 is formed in the nozzle 43 g. The liquid phase introduction hole P2 communicates with the internal pipeline 43f from the inside of the container main body 2.

The valve of this embodiment is not provided with a gas phase communication hole (see FIG. 1) in the housing. This is because the inner diameter of the mixing chamber 42e of the present embodiment is small and the inner area is small, so that the content remaining after injection is relatively small. As a result, in the present embodiment, the compressed gas in the gas phase portion is less likely to be consumed. As a result, the discharge product can stably discharge the foamable composition for a long period of time. Further, since the inner diameter of the first tube member 41d is small, the nozzle 41c is not mounted on the upper end. The upper end opening of the first tube member 41d acts as a gas phase introduction hole P1 to adjust the amount of compressed gas introduced.

The embodiments of the present invention have been described above with reference to the drawings. The discharge product of the present invention can adopt, for example, the following modified embodiments.

(1) In the above embodiment, a case where a tubular mixing chamber having a uniform inner diameter is provided is illustrated. Instead, the mixing chamber may be provided with, for example, an expansion portion having a large inner diameter in the middle of the second tube member. By providing such an expansion portion, the mixing chamber can sufficiently mix the compressed gas and the undiluted solution in the expansion portion even when the length of the second tube member is not sufficient.

(2) In the above embodiment, a case where a linear mixing chamber having a uniform inner diameter is provided is illustrated. Alternatively, the mixing chamber may be provided, for example, in a second tube member that is spirally wound. Thereby, for example, even when the height of the container body is not so large, it is possible to secure a mixing chamber having a sufficient length, and it is easy to sufficiently mix the compressed gas and the undiluted solution.

Hereinafter, the present invention will be described in more detail with reference to Examples. The present invention is not limited to these examples.

(Examples 1 to 14, Comparative Examples 1 to 3)
Fill the aluminum container body (container body 2 (see FIG. 4), φ45, height 140 mm, full injection amount 200 mL) with 50 g of the undiluted solution of the following formulation, and insert the valve 3 according to the specifications shown in Table 1 below. It stuck. Nitrogen gas was filled from the stem 6 to bring the pressure inside the container body to 0.5 MPa (25 ° C.), and the discharge member 9 was attached to the stem 6 to manufacture a discharge product. As shown in FIG. 4, the tube member has the same length as the second tube member (mixing chamber), and the third tube extends from the bottom of the connecting member to the vicinity of the bottom of the can. I made it long.

(Example 15)
A discharged product was manufactured in the same manner as in Example 1 except that the filling amount of the undiluted solution was 70 g and the pressure inside the container body was 0.85 MPa (25 ° C.) with nitrogen gas.

(Example 16)
A discharged product was manufactured in the same manner as in Example 1 except that the filling amount of the undiluted solution was 90 g and the pressure inside the container body was 1.2 MPa (25 ° C.) with nitrogen gas.

<Undiluted solution>
Lauryl phosphoric acid (* 1) 15.0
Sorbitol 10.0
Dipropylene glycol 10.0
Cocamidopropyl Betaine (* 2) 3.0
Laureth-11 Carboxylic Acid (* 3) 1.2
Polyquaternium-52 / PEG-32 / purified water (* 4) 1.0
PEG-160 sorbitan triisostearate (* 5) 0.5
Methylparaben 0.1
Purified water 59.2
Total 100.0 (% by mass)
* 1: Priority B650D, manufactured by Kao Corporation * 2: Lebon 2000HG, manufactured by Sanyo Chemical Industries, Ltd. * 3: Kao Akipo RLM100, manufactured by Kao Corporation * 4: Sofcare KG-301W, manufactured by Kao Corporation * 5 : Leodor TW-IS399C, manufactured by Kao Corporation

The discharge states of the discharge products of Examples 1 to 16 and Comparative Examples 1 to 3 were evaluated by the following evaluation methods.

(Discharge state)
The discharged product was adjusted to 25 ° C., discharged into a cup having a full injection volume of 25 mL, filled with foam, the weight of the foam was measured, the foam density (g / mL) was calculated, and the product was evaluated according to the following evaluation criteria.
(Evaluation criteria)
⊚: The foam density was less than 0.10 (g / mL), and very fine foam was formed.
◯: The foam density was 0.10 to 0.15 (g / mL), and fine bubbles were formed.
X: The foam density was 0.16 (g / mL) or more, and fine bubbles could not be formed.

As shown in Table 1, the aerosol products of Examples 1 to 16 of the present invention formed fine bubbles. On the other hand, in the aerosol products of Comparative Examples 1 to 3 in which the length / cross section of the mixing chamber was less than 2, the foam density was 0.16 or more in the discharged state, and fine bubbles could not be formed.

1 Discharge container 2 Container body 3 Valve 4, 4a, 4d Tube member 41, 41a, 41d First tube member 41b Tube body 41c, 43g Nozzle 42, 42a, 42d Second tube member 42e, 42m, 42n Mixing chamber 43 , 43a, 43d Connecting member 43e Insertion part 43p First insertion part 43q Second insertion part 43f, 43r Internal pipeline 43s Through hole 43t Third insertion part 43u Main body part 43v Bottom lid 44a Third tube member 45 Holding member 5 Housing 51 Gas phase communication hole 52 Mixture introduction hole 53 Mounting part 6 Stem 61 Stem inner passage 62 Stem hole 7 Stem rubber 8 Mounting cup 9 Discharge member 91 Nozzle part 92 Operation part 93 Discharge hole P1 Gas phase introduction hole P2 Liquid Phase introduction hole

Claims (4)

A foaming composition composed of a stock solution containing a foaming agent and a compressed gas, and a discharge container filled with the foaming composition are provided.
The discharge container includes a container body and a valve attached to the container body and formed with a discharge passage for discharging the foamable composition to the outside.
The valve comprises a housing and a tube member attached to the housing for incorporating the effervescent composition into the housing.
The tube member
An opening in the gas phase portion of the effervescent composition filled in the container body, and a gas phase introduction hole for introducing the gas phase portion.
An opening is formed in the liquid phase portion of the effervescent composition filled in the container body, and a liquid phase introduction hole for introducing the liquid phase portion is formed.
A mixing chamber for mixing the gas phase portion and the liquid phase portion of the introduced effervescent composition is provided.
A discharge product in which the ratio of the length (length / cross section) to the cross section of the mixing chamber is 2 to 500. The discharge product according to claim 1, wherein the mixing chamber has a cross-sectional area of 0.2 to 50 mm ² . The discharge product according to claim 1 or 2, wherein the mixing chamber has a length of 10 to 200 mm. The housing is formed with a gas phase communication hole communicating with the gas phase portion of the foamable composition filled in the container body, and the valve includes an opening / closing member for opening and closing the gas phase communication hole. The opening / closing member closes the gas phase communication hole when the foamable composition is discharged, and opens the gas phase communication hole when the foamable composition is not discharged. The discharge product according to any one item.

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