JP6683431B2 - Aerosol products for 2-liquid discharge - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a two-liquid discharge aerosol product. More specifically, the present invention relates to a two-liquid ejection aerosol product capable of surely ejecting two contents having different ejection states and having a two-layer structure and having an excellent aesthetic appearance.

  Conventionally, a two-liquid discharge aerosol product that discharges two different liquids simultaneously from two aerosol containers is known. Patent Document 1 discloses a two-liquid ejector that ejects two liquids so that at least the upper surface of the first liquid layer is covered with the second liquid layer.

JP2012-51582A

  However, the ejected substances ejected by the two-liquid ejector described in Patent Document 1 are all foamy or viscous liquids. Therefore, in the ejected product, only the bubbles are mixed, the viscous liquids are mixed, or the bubbles and the viscous liquid are mixed. As a result, the obtained discharged products only exhibit the gloss and luster of the respective contents, and do not have a particularly excellent aesthetic appearance. Further, when the obtained discharge product is in the form of foam, it is easy to be defoamed over time and is not retained for a long time. Furthermore, when ejecting bubbles from one aerosol container and ejecting viscous liquid from the other aerosol container, such a two-liquid ejector can eject only one due to the difference in ejected substance, or the ratio of the ejection amount. Is difficult to keep constant.

  The present invention has been made in view of such a conventional problem, and can reliably eject two contents having different ejection states, has an excellent aesthetic appearance, and is a defoaming-resistant ejection. It is an object of the present invention to provide a two-liquid discharge aerosol product for obtaining a product.

  The two-component ejection aerosol product of the present invention for solving the above-mentioned problems mainly includes the following configurations.

  (1) A container body having a first container filled with a foamable composition and a second container filled with a viscous stock solution, and a first for taking out the foamable composition from the first container. A passage and a second passage for taking out the viscous stock solution in the second container are formed, a valve mechanism attached to the container body, and the viscous stock solution attached to the valve mechanism, wherein the viscous stock solution is at least the foamable composition. An aerosol product for two-component ejection, comprising an ejection member having an ejection mechanism for ejecting so as to cover a part.

  According to such a configuration, the two-liquid discharge aerosol product includes a container body including a first container filled with a foamable composition and a second container filled with a viscous stock solution, and a first container. A first passage for taking out the foamable composition therein and a second passage for taking out the viscous stock solution in the second container are formed, and a valve mechanism attached to the container body is provided. Therefore, the aerosol product can reliably and simultaneously eject the foamable composition and viscous stock solution that are in different ejection states. Furthermore, the viscous stock solution is provided with a discharge member having a discharge mechanism for discharging so as to cover at least a part of the foamable composition. Therefore, the foamable composition in the discharged product is covered with the viscous stock solution. Such a discharge product has an excellent aesthetic appearance because the viscous stock solution is expanded by the foaming composition that foams, whereby the gloss and luster of the surface is enhanced. In addition, the foamable composition in which at least a part of the discharged material is covered with the viscous stock solution suppresses foaming and is difficult to be defoamed. As a result, the resulting extrudate can be retained in a spherical or other shape exhibiting excellent luster or luster for a relatively long period of time. Such an ejected product is superior in taste as compared with the conventional ejected products that are easily defoamed.

  (2) The two-liquid-discharging aerosol product according to (1), wherein the viscous stock solution exhibits translucency.

  According to such a configuration, in the obtained discharge product, the viscous stock solution covering the foamable composition exhibits translucency. Therefore, it is possible to visually confirm that the foamable composition is foaming in the discharged product. In addition, when the foamable composition is colored, the discharged product is rich in color and more attractive.

  (3) The two-component ejection aerosol product according to (1), wherein the viscous stock solution does not show translucency and is creamy.

  According to such a configuration, since the viscous stock solution is creamy, the gloss and luster of the surface of the obtained discharge are further enhanced. As a result, the resulting discharged product has a better appearance. Also, for example, when the foamable composition is colored and the whole viscous stock solution is covered with the viscous stock solution, the discharged product is colored only by removing the viscous stock solution. The color of the foamable composition can be confirmed. Therefore, the obtained discharged product is more attractive.

  (4) The two-liquid discharge aerosol product according to any one of (1) to (3), wherein the viscous stock solution has a viscosity of 5,000 to 50,000 mPa · s.

  According to such a configuration, the viscous stock solution is likely to spread in the discharged product so as to follow the expansion accompanying the foaming of the foamable composition. At that time, the viscous stock solution is likely to spread in a film shape so as to cover the foamable composition. As a result, the gloss and gloss of the surface of the obtained discharge are likely to be further enhanced.

  (5) The two liquids according to any one of (1) to (4), wherein the foamable composition contains a liquefied gas, and the pressure of the liquefied gas at 20 ° C. is 0.1 to 0.3 MPa. Discharge aerosol products.

  According to such a configuration, the discharged product expands so that the viscous stock solution is spread by the foamable composition appropriately foaming. Therefore, the viscous stock solution is likely to spread in a film shape so as to cover the foamable composition. At that time, the discharged product forms a two-layer structure of the film-like viscous stock solution and the foamable composition without breaking the spread viscous stock solution. As a result, the gloss and gloss of the surface of the obtained discharge are likely to be further enhanced.

  (6) In the discharge mechanism, one end of the first passage is opened, an inner opening through which the foamable composition is discharged, and one end of the second passage is opened, and the viscous stock solution is discharged. The two-component discharge aerosol product according to any one of (1) to (5), further comprising: an outer opening, wherein the outer opening is open to cover at least a part of the inner opening. .

  According to such a configuration, the outer opening portion opens so as to cover at least a part of the inner opening portion. Therefore, at least a part of the foamable composition discharged from the inner opening is easily covered with the viscous stock solution discharged from the outer opening. As a result, the two-liquid ejection aerosol product has an excellent aesthetic appearance with enhanced gloss and luster on the surface, and it is easy to obtain an ejection product that is difficult to defoam.

  (7) The two-component discharge aerosol product according to any one of (1) to (6), wherein the second container exhibits flexibility and is housed in the first container.

  According to such a configuration, the second container is pressurized by the pressure of the foamable composition in the first container. Therefore, when the first passage and the outside and the second passage and the outside communicate with each other at the time of discharging, the second container is compressed. Thereby, the foamable composition in the first container and the viscous stock solution in the second container are likely to be discharged at the same time.

  (8) The two-liquid discharge aerosol product according to any one of (1) to (6), wherein the first container has flexibility and is housed in the second container.

  With such a configuration, the first container is pressurized from the inside by the pressure of the foamable composition with which the inside is filled. Therefore, when the first passage communicates with the outside and the second passage communicates with the outside at the time of discharging, the first container is deformed so as to expand. Thereby, the foamable composition in the first container and the viscous stock solution in the second container are likely to be discharged at the same time.

  According to the present invention, it is possible to reliably eject two contents having different ejection states, have an excellent aesthetic appearance, and provide a two-liquid ejection aerosol product for obtaining an ejection product that is difficult to defoam. can do.

FIG. 1 is a schematic sectional view of an aerosol product according to one embodiment (first embodiment) of the present invention. FIG. 2 is an enlarged cross-sectional view of an aerosol product according to one embodiment (first embodiment) of the present invention. FIG. 3 is a cross-sectional view of a discharge member according to an embodiment (first embodiment) of the present invention. FIG. 4 is a photograph of the appearance of a discharge product obtained by the aerosol product according to one embodiment (first embodiment) of the present invention. FIG. 5 is a schematic sectional view of an aerosol product according to one embodiment (second embodiment) of the present invention. FIG. 6 is a schematic cross-sectional view of an aerosol product according to one embodiment (third embodiment) of the present invention. FIG. 7 is an enlarged sectional view of an aerosol product according to one embodiment (third embodiment) of the present invention. FIG. 8 is a schematic view of an aerosol product of a modified example of the present invention.

[Aerosol products for 2-liquid discharge]
<First Embodiment>
A two-liquid discharge aerosol product (hereinafter referred to as an aerosol product) according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view of an aerosol product 1 of this embodiment. FIG. 2 is an enlarged cross-sectional view of the aerosol product 1 of this embodiment. The aerosol product 1 includes an outer container 2 filled with the foamable composition C1 (an example of a first container filled with the foamable composition) and an inner container housed in the outer container 2 and filled with a viscous stock solution C2. A container main body composed of 3 (an example of a second container filled with a viscous stock solution), a valve mechanism 4 attached to the container main body (external container 2), and a discharge member 5 attached to the valve mechanism 4 are mainly provided. . Each will be described below.

(External container 2)
The outer container 2 is a pressure resistant container filled with a foamable composition C1 described later. The outer container 2 may have a general-purpose shape. The outer container 2 of the present embodiment has a bottomed tubular shape with an opening formed in the upper part. The opening is a filling port for filling the foamable composition C1. A valve mechanism 4 described later is attached to the opening.

  The material of the outer container 2 is not particularly limited. Examples of such materials include various synthetic resins such as polyethylene terephthalate, metals such as aluminum and tin, pressure resistant glass and the like. The outer container 2 includes a bottom portion, a tubular body portion, a tapered shoulder portion, and a cylindrical neck portion that extends upward from the upper end of the shoulder portion, and a flange portion that protrudes radially outward at the upper portion of the neck portion. Are formed. A cover cap 44 described later is fixed to the lower portion of the flange portion.

(Inner container 3)
The inner container 3 is a container housed in the outer container 2. Further, the inner container 3 is composed of a flexible bag body (pouch container) that contracts due to a pressure difference and a mounting jig 42b mounted to the opening thereof, and is filled hermetically with the viscous stock solution C2. The bag body can be formed by stacking two or more sheets, or by folding one or more sheets and then bonding the peripheral edges by heat welding or adhesion. The upper part of the mounting jig 42b is mounted on the second valve mechanism 42 of the valve mechanism 4 described later. The lower portion of the inner container 3 is in contact with the inner bottom portion of the outer container 2. Thereby, the inner container 3 is positioned in the outer container 2.

  The material of the bag body of the inner container 3 is not particularly limited. As an example, the bag body is a single layer body made of polyethylene or polypropylene, polyethylene terephthalate, ethylene-vinyl alcohol copolymer resin, synthetic resin sheet such as polyamide or fluororesin, or a metal sheet such as aluminum foil, and a laminated body thereof. Is.

(Valve mechanism 4)
The valve mechanism 4 includes a first valve mechanism 41, a second valve mechanism 42, a valve main body 43 to which the first valve mechanism 41 and the second valve mechanism 42 are attached, and a valve main body 43 in the opening of the outer container 2. A cover cap 44 for fixing is mainly provided.

  The first valve mechanism 41 is a mechanism for taking out the foamable composition C1 filled in the outer container 2. The first valve mechanism 41 includes a housing 41a held by the valve body 43, a stem 41b housed in the housing 41a so as to be vertically movable, and a stem rubber for opening and closing a stem hole 41c formed in the stem 41b. 41d and an elastic member 41e that constantly biases the stem 41b upward so that the stem hole 41c is sealed by the stem rubber 41d.

  The housing 41a has a substantially cylindrical shape, and has a bottom formed with an inlet for filling the outer container 2 with the foamable composition C1 into the housing 41a. At the lower part of the housing 41a, a cylindrical tube attachment portion 41f extending downward is formed. An outer container dip tube 41g is attached to the tube attachment portion 41f. The outer container dip tube 41 g is a relatively long substantially cylindrical member extending to the vicinity of the inner bottom of the outer container 2. The dip tube 41g for an external container is immersed in the liquid phase of the foamable composition C1 filled in the external container 2 and the upper end inserted into the tube attachment portion 41f, and an opening for taking in the foamable composition C1 is formed. And a lower end that is cut.

  The stem 41b is a member that slides in the housing 41a in the vertical direction. The stem 41b is a substantially rod-shaped portion and has an intra-stem passage 41h through which the foamable composition C1 taken into the housing 41a at the time of injection passes. The stem 41b is formed with a stem hole 41c that communicates the space inside the housing 41a with the intra-stem passage 41h. The stem hole 41c is closed by the inner peripheral surface of the stem rubber 41d when not injecting. An upper end of the intra-stem passage 41h opens at the upper end of the stem 41b. A discharge member 5 for spraying the foamable composition C1 taken in the housing 41a is attached to the upper end of the stem 41b. A step portion is formed at a substantially central portion of the stem 41b in the axial direction. The upper end of the elastic member 41e is attached to the step.

  The stem rubber 41d is a member attached around the stem hole 41c and for blocking the internal space of the housing 41a from the outside. The stem rubber 41d is a disk-shaped member having an insertion hole formed in the center through which the stem 41b is inserted. The inner diameter of the stem rubber 41d is slightly smaller than the outer diameter of the portion of the stem 41b where the stem hole 41c is formed, and the inner peripheral surface is brought into close contact with the outer peripheral surface of the stem 41b during non-injection, so that the stem hole 41c is closed.

  The elastic member 41e is a member held in the housing 41a in a compressed state in order to constantly urge the stem 41b upward. In the present embodiment, the elastic member 41e is a spring and has an upper end connected to the stepped portion of the stem 41b and a lower end connected to the inner bottom surface of the housing 41a.

  As described above, in the first valve mechanism 41, the dip tube 41g for the outer container, the housing 41a, and the stem 41b are provided with a passage (foaming composition) for taking out the foamable composition C1 filled in the outer container 2 from the outer container 2. An example of a first passage for taking out an object is formed.

  The second valve mechanism 42 is a mechanism for taking out the viscous stock solution C2 filled in the inner container 3. In the second valve mechanism 42, the tube mounting portion 41f, the dip tube (dip tube 42a for internal container) and the internal container 3 are connected via a mounting jig 42b, and the other end of the dip tube is viscous. It has the same configuration as the first valve mechanism 41 except that it is immersed in the stock solution C2. Therefore, of the components of the second valve mechanism 42, the same components as those of the first valve mechanism 41 are designated by the same reference numerals.

  The mounting jig 42b is a jig for connecting the second valve mechanism 42 and the inner container 3. The attachment jig 42b is a substantially cylindrical member, and has an upper end formed with an insertion opening into which the tube attachment portion 41f is inserted, and a lower end to which the upper end of the inner container 3 is welded.

  The inner container dip tube 42 a is a relatively long substantially cylindrical member that extends to the vicinity of the axial center of the inner container 3. The inner container dip tube 42a is not essential. That is, the viscous stock solution C2 in the inner container 3 may be any member that can secure a passage for discharging the viscous stock solution C2 in the bag body to the outside when the bag body contracts. Therefore, instead of the substantially cylindrical dip tube 42a for an inner container illustrated in the present embodiment, a rod-shaped member having passages such as convex portions and grooves formed on the surface may be attached.

  As described above, in the second valve mechanism 42, the dip tube 42a for the inner container, the housing 41a, and the stem 41b are used to extract the viscous stock solution C2 filled in the inner container 3 from the inner container 3 (to remove the viscous stock solution). Of the second passage) is formed.

  The valve body 43 is a substantially columnar member attached so as to close the opening of the outer container 2. The valve body 43 has mounting holes into which the first valve mechanism 41 and the second valve mechanism 42 are respectively fitted. The first valve mechanism 41 and the second valve mechanism 42 are attached to the valve body 43 by being fitted into the attachment holes, and are appropriately positioned.

  A circumferential flange portion is formed on the outer peripheral surface of the valve body 43. The flange portion is arranged such that the lower surface thereof contacts the upper surface of the neck portion of the outer container 2. The cylindrical insertion portion extending downward from the flange portion is inserted into the neck portion of the outer container. The O-ring provided on the outer peripheral surface of the insertion portion is compressed and seals with the inner peripheral surface of the neck portion.

  The cover cap 44 is a member for fixing the first valve mechanism 41, the second valve mechanism 42, and the valve body 43 to the opening of the outer container 2. The cover cap 44 has a substantially disc shape, and has a substantially cylindrical edge portion extending downward at the outer peripheral edge. On the upper surface of the cover cap 44, an insertion hole through which the stem 41b of each of the first valve mechanism 41 and the second valve mechanism 42 is inserted is formed. The cover cap 44 presses the first valve mechanism 41 and the second valve mechanism 42 on the upper surface, and seals between the first valve mechanism 41 and the second valve mechanism 42 and the valve body 43. The lower end of the edge portion is plastically deformed into a curved shape along the outer peripheral surface of the neck portion.

  In the present embodiment, a cylindrical protection member 45 that covers the outer peripheral surface of the cover cap 44 is further provided. The vicinity of the lower end of the peripheral surface of the protection member 45 is plastically deformed into a curved shape along the outer peripheral surface of the flange portion of the outer container 2. Further, the upper end of the protection member 45 extends to a position slightly above the upper surface of the ejection member 5 described later. Further, on the peripheral surface of the protective member 45, a cutout is formed at a position corresponding to the discharge port of the discharge member 5 and a position on the opposite side. Therefore, the user can easily perform the operation of holding the outer container 2 with the palm of the hand and pressing down the ejection member 5 with the finger, for example. Further, the aerosol composition discharged from the discharge port is not hindered from being discharged by the protective member 45.

(Discharging member 5)
The discharge member 5 is a member attached to the upper ends of the two stems 41b. The ejection member 5 includes a substantially columnar main body 51 and a substantially columnar nozzle 52 that extends horizontally from the peripheral surface of the main body 51. Further, the discharge member 5 is formed with an external container passage 53 through which the foamable composition C1 taken in from the external container 2 passes and an internal container passage 54 through which the viscous stock solution C2 taken in from the internal container 3 passes. There is. The outer container passage 53 has one end that communicates with an opening formed at the upper end of the stem 41b of the first valve mechanism 41 and the other end that has an opening to an inner pipe passage 53c (see FIG. 3) described later. It is a pipeline having. The inner container passage 54 has one end that communicates with an opening formed at the upper end of the stem 41b of the second valve mechanism 42 and the other end that has an opening to an outer conduit 54c (see FIG. 3) described later. It is a pipeline having.

  FIG. 3 is a cross-sectional view when the ejection member 5 shown in FIG. 1 is cut along a cutting line III-III. As shown in FIGS. 1 and 3, the outer container passage 53 includes a straight portion 53a extending upward inside the discharge member 5, and a horizontal portion 53b horizontally extending from the upper end of the straight portion 53a. The inner container passage 54 includes a straight portion 54a extending upward inside the discharge member 5, and a horizontal portion 54b extending horizontally from the upper end of the straight portion 54a. Further, inside the nozzle portion 52, a double cylindrical pipe line (inner pipe line 53c and outer pipe line 54c) is formed. The horizontal portion 53b of the outer container passage 53 is open to the inner pipe passage 53c. On the other hand, the outer conduit 54c is open so as to cover the periphery of the inner conduit 53c. The horizontal portion 54b of the inner container passage 54 is open to the outer pipe 54c. Openings (external container discharge port 53d and internal container discharge port 54d) are formed at the ends of the inner pipe line 53c and the outer pipe line 54c.

  In the aerosol product 1 of the present embodiment, such a discharge member 5 is provided with the nozzle portion 52 (an example of a discharge mechanism for discharging the viscous stock solution so as to cover at least a part of the foamable composition). Thus, the viscous stock solution C2 is discharged so as to cover the foamable composition C1. The shape and the like of the discharged product will be described later.

(Foamable composition C1)
The foamable composition C1 is the content with which the outer container 2 is filled. The foamable composition C1 is preferably a discharge product having a sustained foaming property in which bubbles gradually increase after discharge. As an example, the sustained foaming discharge product is a discharge product in which the change rate of the foam specific gravity after discharge of the discharge product at 25 ° C. is −0.1 to −0.0005 (g / ml · min). Preferably there is. Further, the density of stable foam after foaming is preferably 0.001 to 0.05 g / ml.

  The composition of the foamable composition C1 is not particularly limited. As an example, the foamable composition C1 contains a stock solution containing a surfactant and water, and a propellant.

  Examples of the surfactant include nonionic surfactants such as glycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, POE sorbitan fatty acid ester, POE fatty acid ester, POE hydrogenated castor oil, POE alkyl ether, and POE / POP alkyl ether, Anionic surfactants such as fatty acid soaps, alkyl phosphates, alkyl sulfates, POE alkyl ether sulfates, amphoteric surfactants such as lauryl betaine, cationic surfactants such as alkyltrimethylammonium chloride, polyoxyethylene. Examples include silicone-based surfactants such as methylpolysiloxane copolymer.

  The content of the surfactant is not particularly limited. As an example, the content of the surfactant in the stock solution is preferably 0.1% by mass or more, and more preferably 0.3% by mass or more. The content of the surfactant in the stock solution is preferably 20% by mass or less, more preferably 15% by mass or less. When the content of the surfactant is less than 0.1% by mass, the foamable composition C1 has an insufficient foaming property, and the obtained discharge hardly expands the viscous stock solution from the inside, resulting in a glossy surface. And gloss tends to be difficult to obtain. On the other hand, when the content of the surfactant exceeds 20% by mass, the surfactant tends to remain on the coated surface, and when used on the skin, irritation tends to be strong.

  Examples of water include purified water, ion-exchanged water, physiological saline, and deep sea water.

  The content of water is not particularly limited. As an example, water is preferably 50% by mass or more, more preferably 60% by mass or more, in the undiluted solution. Further, the water content in the stock solution is preferably 99% by mass or less, more preferably 98% by mass or less. When the content of water is less than 50% by mass, the foamable composition C1 has insufficient foamability, and the resulting discharge product has a viscous stock solution expanded from the inside to obtain gloss and luster on the surface. Tends to be difficult. In addition, the foamable composition C1 tends to defoam quickly, and the resulting discharged product tends to have a state in which the surface has gloss or luster, which is difficult to maintain. On the other hand, when the content of water exceeds 99% by mass, the foamable composition C1 has a small content of a surfactant, an active ingredient, and the like, and it is difficult to obtain a desired effect.

  In the stock solution, in addition to the surfactant and water, monohydric lower alcohols such as ethanol, polyhydric alcohols such as 1,3-butylene glycol and glycerin, water-soluble polymers such as hydroxyethyl cellulose, ester oils and silicones. An oil component such as oil, a powder such as talc, an ultraviolet absorber, a first agent of a two-component hair dye, and an optional component such as an active ingredient such as vitamin may be contained.

  The content of the undiluted solution is preferably 60% by mass or more in the foamable composition C1, and more preferably 70% by mass or more. Further, the content of the undiluted solution is preferably 97% by mass or less in the foamable composition C1, and more preferably 95% by mass or less. When the content of the undiluted solution is less than 60% by mass, the foamable composition C1 is unlikely to form stable bubbles, and the obtained discharge tends to be difficult to maintain the state where the surface has gloss or luster. On the other hand, when the content of the undiluted solution exceeds 97% by mass, the foamable composition C1 has insufficient foamability, and the resulting discharge product expands the viscous undiluted solution from the inside to obtain gloss and luster on the surface. It tends to be difficult to be affected.

  The propellant is not particularly limited. As an example, as the propellant, liquefied gas such as aliphatic hydrocarbon having 3 to 5 carbon atoms, hydrofluoroolefin, dimethyl ether and a mixed gas thereof is preferably used.

  The pressure of the propellant (liquefied gas) is preferably 0.1 MPa or higher at 20 ° C., more preferably 0.12 MPa or higher. Further, the pressure of the propellant is preferably 0.3 MPa or less at 20 ° C., and more preferably 0.25 MPa or less. When the pressure of the propellant is 0.1 to 0.3 MPa, the obtained discharge product is a viscous stock solution so as to follow the expansion accompanying the slow foaming of the foamable composition C1, as described in detail later. C2 is easily expanded. At that time, the viscous stock solution C2 is likely to spread in a film shape covering the foamable composition C1. As a result, the obtained discharge is easily spread so as to cover the foamable composition C1, and the luster and luster of the surface are easily enhanced. When the pressure of the propellant is less than 0.1 MPa, the discharged foamable composition C1 does not foam sufficiently and the viscous stock solution C2 is difficult to spread. As a result, the discharged product does not swell in three dimensions, and the gloss and luster on the surface are not easily enhanced. On the other hand, when the pressure exceeds 0.3 MPa, the discharged foamable composition C1 tends to excessively spread the viscous stock solution C2. As a result, in the discharged product, the foamable composition is difficult to be properly covered, for example, a part of the viscous stock solution C2 is broken, and gloss and gloss are hard to be enhanced.

  The content of the propellant (eg, liquefied gas) is preferably 3% by mass or more in the foamable composition C1, and more preferably 5% by mass or more. The content of the propellant in the foamable composition C1 is preferably 40% by mass or less, and more preferably 30% by mass or less. When the content of the propellant is less than 3% by mass, the foamable composition C1 has insufficient foamability, and the resulting discharge product expands the viscous stock solution from the inside to obtain gloss and luster on the surface. It tends to be difficult to be affected. On the other hand, when the content of the propellant is more than 40% by mass, the foamable composition C1 is unlikely to form stable bubbles, and the obtained discharge tends to be difficult to maintain the state of having gloss or luster on the surface. is there.

  Further, the outer container 2 may be filled with a pressurizing agent in order to facilitate discharge of the foamable composition C1 and the viscous stock solution C2. The pressurizing agent is, for example, a compressed gas such as nitrogen gas or carbon dioxide gas. The pressurizing agent is preferably filled so as to have a pressure higher than the pressure of the propellant in the foamable composition, and more preferably the pressure at 20 ° C. in the pressure resistant container is 0.35 MPa or more. , 0.4 MPa or more is more preferable. The pressure agent is preferably filled so that the pressure in the pressure vessel at 20 ° C. is 0.7 MPa or less, and more preferably 0.6 MPa or less. By filling the outer container 2 such that the pressure of the pressurizing agent is 0.35 to 0.7 MPa, the aerosol product 1 has a valve mechanism even if the amounts of the foamable composition C1 and the viscous stock solution C2 are small. When the 4a is opened, the foamable composition C1 and the inner container 3 can be appropriately pressed. As a result, the foamable composition C1 and the viscous stock solution C2 in the inner container 3 are likely to be uniformly discharged.

(Viscous stock solution C2)
The viscous stock solution C2 is the content with which the inner container 3 is filled. The viscous stock solution C2 is preferably a content which hardly foams or has a low foaming property. As an example, the viscous stock solution C2 is preferably a cream-like, gel-like, or foam-like substance having a low foaming property. In addition, in the present embodiment, “contents having low foaming property” means that the density of the discharged product at 25 ° C. when discharged independently and the discharged product foams after the discharge to form a stable bubble is 0.1. The content of 1.0 g / ml.

  The composition of the viscous stock solution C2 is not particularly limited. As an example, when the viscous stock solution C2 is creamy, the viscous stock solution C2 mainly contains a surfactant, an oil component, water and the like.

  Examples of the surfactant include nonionic surfactants such as glycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, POE sorbitan fatty acid ester, POE fatty acid ester, POE hydrogenated castor oil, POE alkyl ether, and POE / POP alkyl ether, Anionic surfactants such as fatty acid soaps, alkyl phosphates, alkyl sulfates, POE alkyl ether sulfates, amphoteric surfactants such as lauryl betaine, cationic surfactants such as alkyltrimethylammonium chloride, polyoxyethylene. Examples include silicon-based surfactants such as methylpolysiloxane copolymer.

  The content of the surfactant is not particularly limited. As an example, the content of the surfactant in the viscous stock solution C2 is preferably 0.1% by mass or more, and more preferably 0.5% by mass or more. The content of the surfactant in the viscous stock solution C2 is preferably 20% by mass or less, more preferably 15% by mass or less. When the content of the surfactant is less than 0.1% by mass, the viscous stock solution C2 tends to be unstable in emulsion and difficult to form a stable cream. On the other hand, when the content of the surfactant exceeds 20% by mass, the viscous stock solution C2 tends to remain on the coated surface, and when used on the skin, irritation tends to be strong.

  Examples of the oil component include liquid oil components such as hydrocarbon oils, ester oils, silicone oils and fats, solid oil components such as higher alcohols, higher fatty acids and waxes.

  The oil content is not particularly limited. As an example, the oil content in the viscous stock solution C2 is preferably 1% by mass or more, and more preferably 3% by mass or more. The oil content in the viscous stock solution C2 is preferably 30% by mass or less, and more preferably 20% by mass or less. When the content of oil is less than 1% by mass, the viscous stock solution C2 has a low cream viscosity and tends to be difficult to form a stable cream. On the other hand, when the oil content is more than 30% by mass, the obtained discharge tends to lower the persistence of foaming.

  Examples of water include purified water, ion-exchanged water, physiological saline, and deep sea water.

  The content of water is not particularly limited. As an example, the water content in the viscous stock solution C2 is preferably 40% by mass or more, and more preferably 50% by mass or more. The content of water in the viscous stock solution C2 is preferably 95% by mass or less, more preferably 90% by mass or less. When the content of water is less than 40% by mass, the viscous stock solution C2 has a hard cream and does not spread easily even when the foamable composition C1 expands from the inside, and the resulting extruded product has a surface gloss and gloss. It tends to be difficult to obtain. On the other hand, when the content of water exceeds 95% by mass, the viscous stock solution C2 tends not to form a stable cream.

  In the viscous stock solution, in addition to surfactants, water and oil, monohydric lower alcohols such as ethanol, polyhydric alcohols such as 1,3-butylene glycol and glycerin, water-soluble polymers such as hydroxyethyl cellulose and esters. An oil component such as oil or silicone oil, a powder such as talc, a second agent such as an ultraviolet absorber or a two-component hair dye, and an active ingredient such as an active ingredient such as vitamin may be contained.

  Further, a dye may be added to the viscous stock solution. As a result, a color difference from the foam of the foamable composition C1 inside can be obtained, and the aesthetic appearance can be improved. As the pigment, amaranth (red No. 2), erythrosine (red No. 3), new coccin (red No. 102), rose bengal (red No. 105), acid red (red No. 106), rose bengal K (red No. 232) ), Violamine R (Red No. 401), Resorcin Brown (Brown No. 201), Orange I (Daidai No. 402), Orange II (Daidai No. 205), Tartrazine (Yellow No. 4), Sunset Yellow (Yellow 5). No.), Uranine (Yellow No. 202), Quinoline Yellow WS (Yellow No. 203), Naphthol Yellow S (Yellow No. 403), Fast Green (Green No. 3), Alizarin Cyanine Green F (Green No. 201), Pyranine Conc ( Green No. 204), Naphthol Green B (Green No. 401), Brilliant Blue FCF (Blue) No.), indigo carmine (2 Blue No.), patent blue (Blue No. 203), and the like.

  The viscous stock solution C2 may be mixed with a propellant (liquefied gas). In this case, the content of the viscous stock solution C2 is preferably 97% by mass or more, and 98% by mass or more, of the total amount of the viscous stock solution C2 and the propellant, for example, when the viscous stock solution C2 is creamy. Is more preferable. Further, the content of the viscous stock solution is preferably 99.9 mass% or less, and more preferably 99.8 mass% or less of the total amount of the viscous stock solution C2 and the propellant. When the content of the viscous stock solution C2 is less than 97% by mass, the viscous stock solution C2 tends to foam, and it tends to be difficult to obtain gloss or gloss on the surface. On the other hand, when the content of the viscous stock solution C2 exceeds 99.9% by mass, the resulting ejected product tends to be difficult to obtain the effect of containing the propellant (for example, easy spreading).

  The propellant is not particularly limited. As an example, as the propellant, a liquefied gas such as an aliphatic hydrocarbon having 3 to 5 carbon atoms, hydrofluoroolefin, dimethyl ether, or a mixture thereof is preferably used. In particular, the propellant is a lipophilic liquefied gas such as an aliphatic hydrocarbon having 3 to 5 carbon atoms or hydrofluoroolefin, since it is easy to obtain effects such as emulsification with a creamy viscous stock solution to facilitate spreading. Preferably there is. In addition, a hydrophilic liquefied gas such as dimethyl ether may be used as the propellant in order to suppress the foaming property and make it easier to obtain gloss or luster on the surface.

  The content of the propellant (for example, liquefied gas) is preferably 0.1% by mass or more, and more preferably 0.2% by mass or more of the total amount of the viscous stock solution C2 and the propellant. Further, the content of the propellant is preferably 3% by mass or less, and more preferably 2% by mass or less, of the total amount of the viscous stock solution C2 and the propellant. When the content of the propellant is less than 0.1% by mass, the effect of containing the propellant tends to be difficult to obtain. On the other hand, when the content of the propellant exceeds 3% by mass, the viscous stock solution C2 has a high foaming property, and the obtained discharge tends to have difficulty in obtaining gloss or luster on the surface.

  When the viscous stock solution C2 is in the form of gel, the viscous stock solution C2 mainly contains a water-soluble polymer, water, an active ingredient and the like.

  Examples of the water-soluble polymer include cellulosic polymers such as hydroxyethyl cellulose, hydroxypropyl cellulose and hydroxypropylmethyl cellulose, xanthan gum, carrageenan, gum arabic, tragacanth gum, cationized guar gum, guar gum, gellan gum, locust bean gum and other gums, dextran. , Sodium carboxymethyl dextran, dextrin, gelatin, pectin, starch, corn starch, wheat starch, sodium alginate, modified potato starch, carboxyvinyl polymer, polyacrylate crosspolymer and the like.

  The content of the water-soluble polymer in the viscous stock solution C2 is preferably 0.01% by mass or more, and more preferably 0.03% by mass or more. The content of the water-soluble polymer in the viscous stock solution C2 is preferably 5% by mass or less, and more preferably 3% by mass or less. When the content of the water-soluble polymer is less than 0.01% by mass, the effect of adjusting the viscosity of the viscous stock solution C2 tends to be difficult to obtain. On the other hand, when the content of the water-soluble polymer exceeds 5% by mass, the viscosity of the viscous stock solution C2 is too high, and the viscous stock solution C2 is difficult to follow the expansion accompanying the foaming of the foamable composition C1 and is difficult to spread. Tend.

  Examples of water include purified water, ion-exchanged water, physiological saline, and deep sea water.

  The content of water is not particularly limited. As an example, the water content in the viscous stock solution C2 is preferably 70% by mass or more, and more preferably 80% by mass or more. Further, the water content in the viscous stock solution C2 is preferably 99.5% by mass or less, and more preferably 99% by mass or less. When the water content is less than 70% by mass, the viscous stock solution C2 is less likely to form a stable gel, and tends to crush the bubbles of the foamable composition C1 therein. On the other hand, when the content of water exceeds 99.5 mass%, the viscous stock solution C2 has a small content of the active ingredient and the like, and the desired effect tends to be difficult to be obtained.

  In the viscous stock solution C2, in addition to water-soluble polymers and water, monohydric lower alcohols such as ethanol, polyhydric alcohols such as 1,3-butylene glycol and glycerin, water-soluble polymers such as hydroxyethyl cellulose and esters. Oils such as oils and silicone oils, powders such as talc, second agents such as ultraviolet absorbers and two-component hair dyes, optional ingredients such as active ingredients such as vitamins, and the aforementioned dyes may be contained. Also, these may be mixed with the above-mentioned propellant.

  The viscous stock solution C2 of the present embodiment may be prepared so as to show translucency or not so as to show translucency by adjusting the type and the amount of the blending component. In order to prepare the viscous stock solution C2 exhibiting translucency, the viscous stock solution C2 is made into a dissolution system such as a gel. On the other hand, in order to prepare the viscous stock solution C2 which does not show translucency, the viscous stock solution C2 is made into an emulsion system such as a cream. The difference in the effect produced depending on whether or not the material has translucency will be described later. In the present embodiment, “translucency” means that at least a part of the viscous stock solution C2 covering the foamable composition C1 is transparent in the obtained discharge, and the foamable composition C1 inside is Translucency that allows visual confirmation of properties (color, shape, degree of foaming, etc.).

  Moreover, the viscosity of the viscous stock solution C2 of the present embodiment is preferably 5000 mPa · s or more, and more preferably 10000 mPa · s or more. The viscosity of the viscous stock solution C2 is preferably 50,000 mPa · s or less, and more preferably 45,000 mPa · s or less. When the viscosity of the viscous stock solution C2 is less than 5000 mPa · s, the obtained discharge tends to be less likely to expand when the foamable composition C1 foams, and the foam tends to be crushed even when foamed. On the other hand, when the viscosity of the viscous stock solution C2 exceeds 50,000 mPa · s, the obtained discharge is liable to expand due to the expansion accompanying foaming, such as breakage during foaming of the foamable composition C1. . As a result, the resulting extrudate is unlikely to have enhanced gloss and luster.

<How to Use Aerosol Product 1 and Obtained Discharge>
Next, a method of using the above-mentioned aerosol product 1 and a discharge product obtained will be described with reference to FIGS. 1 to 3 and 4. FIG. 4 is an external appearance photograph of the discharged product P obtained by the aerosol product 1 of this embodiment. In the aerosol product 1 of this embodiment, when the ejection member 5 is pushed down, the stems 41b of the first valve mechanism 41 and the second valve mechanism 42 are pushed downward. As a result, the stem rubber 41d of each of the first valve mechanism 41 and the second valve mechanism 42 bends downward, and the respective stem holes 41c are opened. As a result, the inside of the outer container 2 and the outside, and the inside of the inner container 3 and the outside communicate with each other.

  When the inside of the outer container 2 and the outside communicate with each other, the foamable composition C1 in the outer container 2 is filled with the pressure difference between the inside and the outside of the outer container 2 (the pressure of the propellant in the foamable composition C1 and the appropriate filling). The pressure of the pressurizing agent) is taken into the housing 41a of the first valve mechanism 41. Then, the foamable composition C1 passes through the intra-stem passage 41h and is sent to the ejection member 5. At the same time, the outer peripheral surface of the flexible inner container 3 is pressed by the pressure of the propellant and the pressure of the pressurizing agent in the foamable composition C1. Here, the inside of the inner container 3 and the outside communicate with each other. Therefore, the viscous stock solution C2 in the inner container 3 is prompted to be taken into the housing 41a of the second valve mechanism 42. After that, the viscous stock solution C2 passes through the in-stem passage 41h and is sent to the discharge member 5. Since the foamable composition C1 and the viscous stock solution C2 are sent to the discharge member under the pressure of the same propellant or pressurizing agent, only one of the contents is discharged or the foamable composition and the viscous stock solution are discharged. It is possible to prevent the ratio of the amounts from being greatly lost.

  The foamable composition taken into the ejection member 5 passes through the passage 53 for the outer container in the ejection member 5, and then passes through the inner pipe passage 53c of the nozzle portion 52 to be ejected. On the other hand, the viscous stock solution C2 taken into the discharge member 5 passes through the internal container passage 54 in the discharge member 5, and then passes through the outer pipe passage 54c of the nozzle portion 52 and is discharged. As described above, the outer pipe line 54c is open so as to cover the periphery of the inner pipe line 53c. Therefore, the viscous stock solution C2 is discharged so as to cover the foamable composition.

  As shown in FIG. 4, the discharge product P has a substantially spherical shape in which the foamable composition is covered with the viscous stock solution C2. In such a discharged material P, the viscous stock solution C2 is spread by the foamable composition C1 which continues to foam somewhat after discharging. As a result, the discharged product P has enhanced gloss and luster on the surface and exhibits an excellent appearance. Further, in the discharged material P, the foamable composition C1 is covered with the viscous stock solution C2. Therefore, in the foamable composition C1, foaming is suppressed and it is difficult to defoam. As a result, the obtained discharge product P can hold a spherical shape exhibiting excellent luster and luster for a relatively long time, and is excellent in taste.

  Further, in the discharged product P, the viscous stock solution C2 is in a gel form. Further, the viscous stock solution C2 is colored in pink and shows translucency. Therefore, the discharge P can see the bubbles inside through the gel, and since the gloss and luster of the gel surface are enhanced, it is rich in color and looks as if it is a food sample (for example, Japanese sweets such as water steamed bun). It has an appearance like, and is more attractive. Further, in the discharged product P shown in FIG. 4, a part of the foamable composition C1 is not covered with the viscous stock solution C2. Therefore, in the discharged product P, a relatively flat surface having excellent gloss and luster and a bubble-like surface can be observed at the same time, which is extremely attractive. On the other hand, if the obtained discharge product is substantially spherical and the foamable composition C1 is completely covered with the viscous stock solution C2, bubbles are present in the center of the discharge product and the obtained discharge product is , Very good taste.

  Further, if the viscous stock solution C2 does not show a light-transmitting property such as a cream, the ejected material is further enhanced in gloss and luster of the surface of the viscous stock solution, and thus has a better appearance. In addition, when the surface of the discharged material is removed with a fingertip, bubbles are exposed from the inside, and it is possible to provide a rich effect.

  As described above, the aerosol product 1 of the present embodiment includes the ejection member 5 having the ejection mechanism for ejecting the viscous stock solution C2 so as to cover at least a part of the foamable composition C1. Therefore, the foamable composition C1 of the discharged product P is covered with the viscous stock solution C2. Such a discharged product P has an excellent aesthetic appearance by enhancing the gloss and luster of the surface by spreading the viscous stock solution C2 by the foaming composition C1 that foams. Further, the foamable composition C1 of which at least a part of the discharged material P is covered with the viscous stock solution C2 is suppressed in foaming and is difficult to be defoamed. As a result, the obtained discharged product P has a spherical shape or the like showing excellent luster and luster, and is excellent in taste.

<Second Embodiment>
A two-liquid discharge aerosol product (hereinafter referred to as an aerosol product) according to an embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a schematic cross-sectional view of the aerosol product 1a of this embodiment. In the aerosol product 1a of the present embodiment, the foamable composition C1 is filled in the inner container (first inner container 31), and the viscous stock solution C2 is filled in the inner container (second inner container 32). The aerosol product 1 described above in the first embodiment (see FIG. 1), except that a pressurizing agent such as nitrogen is filled between the container and the two inner containers at a higher pressure than the propellant of the foamable composition. ) Is the same configuration as. Therefore, the same reference numerals are given to the overlapping configurations, and the description will be appropriately omitted.

(First inner container 31)
The first inner container 31 is a container filled with the foamable composition C1. The structure of the first internal container 31 is the same as that of the internal container 3 (see FIG. 1) described above. That is, the first inner container 31 is a flexible bag (pouch container) that contracts due to a pressure difference, and is filled with the foamable composition C1. A liquid phase and a gas phase of the foamable composition C1 may be mixed in the first inner container 31.

(Second inner container 32)
The second inner container 32 is a container filled with the viscous stock solution C2. The configuration of the second inner container 32 is the same as that of the inner container 3 (see FIG. 1) described above. A second valve mechanism 42 is attached to the opening of the second inner container 32.

(Valve mechanism 4a)
The valve mechanism 4a includes a second valve mechanism 42, a third valve mechanism 46, a valve body 43 to which the second valve mechanism 42 and the third valve mechanism 46 are attached, and a valve body 43 in the opening of the outer container 2a. A cover cap 44 for fixing is mainly provided. The second valve mechanism 42 is a mechanism for taking out the viscous stock solution C2, similarly to the second valve mechanism 42 (see FIG. 2) described above in the first embodiment.

  The third valve mechanism 46 is a mechanism for taking out the foamable composition C1 filled in the first inner container 31. The third valve mechanism 46 has the same configuration as the second valve mechanism 42 except that the other end of the dip tube 41i extends to the vicinity of the bottom.

(External container 2a)
The outer container 2a is a pressure resistant container in which the first inner container 31 and the second inner container 32 are housed. The outer container 2a may have a general-purpose shape. The outer container 2a of the present embodiment has a bottomed cylindrical shape with an opening formed in the upper portion. The valve mechanism 4a is attached to the opening.

  Further, the external container 2a is filled with the above-mentioned pressurizing agent. Therefore, when the ejection member 5 is pushed down at the time of injection, the valve mechanism 4a is opened and the first internal container 31 and the outside and the second internal container 32 and the outside are respectively communicated with each other. The foamable composition C1 is discharged by the pressure of the propellant, and the viscous stock solution C2 in the second inner container 32 is discharged by the pressurizing agent.

  The type of pressurizing agent is not particularly limited. One example is a compressed gas such as nitrogen gas or carbon dioxide gas.

  The pressure of the pressurizing agent is preferably higher than the pressure of the propellant in the foamable composition, and the pressure at 20 ° C. in the pressure resistant container is preferably 0.35 MPa or more, and 0.4 MPa or more. It is more preferable to use so that Further, the pressurizing agent is preferably used so that the pressure in the pressure vessel at 20 ° C. is 0.7 MPa or less, and more preferably 0.6 MPa or less. By filling the outer container 2a so that the pressure of the pressurizing agent is 0.35 to 0.7 MPa, the aerosol product 1a has a valve mechanism even if the amounts of the foamable composition C1 and the viscous stock solution C2 decrease. When the 4a is opened, the first inner container 31 and the second inner container 32 can be appropriately pressed. As a result, the foamable composition C1 in the first inner container 31 and the viscous stock solution C2 in the second inner container 32 are prompted to be taken into the housing 41a of the third valve mechanism 46 and the second valve mechanism 42, respectively. Be done. After that, the foamable composition C1 and the viscous stock solution C2 respectively pass through the in-stem passage 41h, are sent to the discharge member 5, and are discharged. The foamable composition C1 can be discharged from the discharge member 5 so as to cover the viscous stock solution C2.

<Third Embodiment>
A two-liquid discharge aerosol product (hereinafter referred to as an aerosol product) according to an embodiment of the present invention will be described with reference to the drawings. FIG. 6 is a schematic cross-sectional view of the aerosol product 1b of this embodiment. FIG. 7 is an enlarged cross-sectional view of the aerosol product 1b of this embodiment. Further, the aerosol product 1b of the present embodiment is different in the configuration of the valve mechanism 4b and the inner container 3a, except that the foamable composition C1 is filled in the inner container 3a and the viscous stock solution C2 is filled in the outer container 2. The configuration is similar to that of the aerosol product 1 (see FIG. 1) described above in the first embodiment. Therefore, the same reference numerals are given to the overlapping configurations, and the description will be appropriately omitted.

(External container 2)
The outer container 2 has a bottomed cylindrical shape having pressure resistance, and has translucency so that the remaining amount of the viscous stock solution C2 can be confirmed. The outer container 2 is composed of a bottom portion, a cylindrical body portion, a shoulder portion tapered from the upper end of the body portion, a cylindrical neck portion extending from the upper end, and a mouth portion at the upper end. There is. A screw is formed on the outer circumference of the neck.

  The outer container 2 is molded from a synthetic resin such as polyester such as polyethylene terephthalate or polycyclohexane dimethylene terephthalate or synthetic resin such as polyamide such as nylon by biaxial stretch blow molding or the like so as to have pressure resistance.

(Inner container 3a)
The inner container 3 a is a container housed in the outer container 2. The inner container 3a is a flexible bag that can be appropriately inflated due to a pressure difference, and is filled with the foamable composition C1. Further, the inner container 3a may be appropriately filled with a pressurizing agent. The inner container 3a has a shape that is in contact with the inner surface of the outer container 2 in a state before the viscous stock solution C2 is filled in the space between the inner container 3a and the outer container 2, that is, substantially the inner surface of the outer container 2. Have the same shape (substantially the same shape). The inner container 3a includes a bottom portion, a cylindrical body portion, a shoulder portion tapered from the upper end of the body portion, a cylindrical neck portion extending from the upper end, a mouth portion at the upper end, and a mouth portion. And a flange portion extending outward in the radial direction. Further, in the inner container 3a, as shown in FIG. 6, the space between the outer container 2 filled with the viscous stock solution C2 and the inner container 3a communicates with the outside from the lower surface of the flange portion to the outer periphery of the neck portion. A groove 31a for forming is formed. The groove 31a constitutes a discharge path when the viscous stock solution C2 is discharged to the outside. A valve mechanism 4b, which will be described later, is attached to the mouth portion.

  Such an internal container 3a is molded from a synthetic resin such as polyester such as polyethylene terephthalate or polycyclohexanedimethylene terephthalate, polyamide such as nylon, polyolefin such as polyethylene or polypropylene by biaxial stretching blow or the like so as to have flexibility. It The outer container 2 and the inner container 3a may be made of the same material or different materials. Further, the outer container 2 and the inner container 3a may be simultaneously blow molded. The term "flexibility" as used herein means that when the viscous stock solution C2 is filled in the space between the outer container and the inner container, it contracts, and when the viscous stock solution C2 is discharged, it returns to its original shape and can be deformed. Say.

(Valve mechanism 4b)
The valve mechanism 4b is a member for closing the openings of the outer container 2 and the inner container 3a to seal the outer container 2 and the inner container 3a. The valve mechanism 4b includes a cover cap 44 fixed so as to close the openings of the outer container 2 and the inner container 3a, and a valve body 43a held by the cover cap 44 at a predetermined position in the outer container 2. Mainly equipped with.

  The cover cap 44 is a member for attaching the valve mechanism 4b to the outer container 2. The cover cap 44 has a cap body that holds the valve body 43a, and a substantially cylindrical edge portion that extends downward at the outer peripheral edge of the cap body. The cap body is formed with an insertion hole at the center through which a stem 47b described later is inserted. The inner surface of the edge portion is formed so as to be screwed with a screw formed on the outer peripheral surface of the neck portion of the outer container 2.

  The valve main body 43a includes a housing 47a, a stem 47b having stem holes (first stem hole 47c and second stem hole 47d) that communicate the inside and the outside of the outer container 2 and the inner container 3a, respectively, and a first stem hole. A first stem rubber 47e that is attached around 47c and closes the first stem hole 47c, and a second stem rubber 47f that is attached around the second stem hole 47d and closes the second stem hole 47d. Mainly equipped with and.

  The housing 47a is a member that houses the stem 47b. The housing 47a mainly includes a substantially cylindrical tubular portion 47g having an open top, and a flange portion 47h extending radially outward from an upper end of the tubular portion 47g. An elastic member 41e made of resin that urges the stem 47b upward is formed on the inner bottom surface of the cylindrical portion 47g. The flange portion 47h includes a disk-shaped top surface portion 47i, an upper surface side extending portion 48a extending upward from an upper surface of the top surface portion 47i, and a lower side extending portion 48b extending downward from a lower surface. . The lower extended portion 48b is a substantially cylindrical portion. The outer peripheral surface of the lower extension portion 48b is in contact with the inner peripheral surface of the inner container 3a.

  An inlet for taking in the foamable composition C1 filled in the inner container 3a into the tubular portion 47g is formed on the peripheral surface of the tubular portion 47g.

  The stem 47b is a member that slides in the housing 47a in the vertical direction, and includes an upper stem 49a and a lower stem 49b.

  The upper stem 49a is a double-cylindrical portion, and has a first intra-stem passage 49c through which the foamable composition C1 taken into the housing 47a passes during discharge and a viscous stock solution C2 taken from the external container 2 during discharge. And a second intra-stem passage 49d through which In the upper stem 49a, the lower end of the first intra-stem passage 49c is formed below the lower end of the second intra-stem passage 49d. A first stem hole 47c is formed near the lower end of the first intra-stem passage 49c to connect the space inside the housing 47a and the first intra-stem passage 49c. In addition, a second stem hole 47d is formed near the lower end of the second intra-stem passage 49d to connect the space inside the outer container 2 and the second intra-stem passage 49d.

  The first stem hole 47c is closed by the inner peripheral surface of the first stem rubber 47e when not injecting. The second stem hole 47d is closed by the inner peripheral surface of the second stem rubber 47f when not injecting. The upper ends of the first stem internal passage 49c and the second stem internal passage 49d are open at the upper ends of the upper stems 49a. A discharge member 6 for spraying the viscous stock solution C2 and the foamable composition C1 is attached to the upper end of the upper stem 49a.

  The lower stem 49b is a portion integrally provided at the lower end of the upper stem 49a and bulges in a spherical shape. The lower stem 49b is biased upward by the elastic member 41e.

  The first stem rubber 47e is a member that is attached around the first stem hole 47c and appropriately shields the internal space of the housing 47a from the outside. The first stem rubber 47e is a disk-shaped member having a through hole formed in the center through which the upper stem 49a is inserted. The inner diameter of the first stem rubber 47e is slightly smaller than the outer diameter of the portion of the upper stem 49a where the first stem hole 47c is formed, and the inner peripheral surface is the outer peripheral surface of the upper stem 49a when not injecting. And the first stem hole 47c is closed. The vicinity of the outer periphery of the first stem rubber 47e is sandwiched by a fixing member 47j installed between the upper portion of the cylindrical portion 47g of the housing and the first stem rubber 47e and the second stem rubber 47f. Thereby, the first stem rubber 47e is properly positioned in the valve mechanism 4b.

  The second stem rubber 47f is a member that is attached around the second stem hole 47d and appropriately shields the internal space of the external container 2 from the outside. The second stem rubber 47f is a disk-shaped member having an insertion hole formed in the center through which the upper stem 49a is inserted. The inner diameter of the second stem rubber 47f is slightly smaller than the outer diameter of the portion of the upper stem 49a where the second stem hole 47d is formed, and the inner peripheral surface is the outer peripheral surface of the upper stem 49a when not injecting. And the second stem hole 47d is closed. The vicinity of the outer periphery of the second stem rubber 47f is sandwiched between the upper surface of the stepped portion and the fixing member 47j provided on the inner peripheral surface of the upper extension portion 48a and the lower surface of the cover cap 44. As a result, the second stem rubber 47f is properly positioned within the valve mechanism 4b.

  The elastic member 41e is a plate-shaped member that is held in the housing 47a in a compressed state and acts as a spring. The elastic member 41e is composed of four projecting pieces extending upward from the inner bottom surface of the tubular portion 47g. The upper end of each protrusion is in contact with the lower stem 49b. The elastic member 41e urges the stem 47b in the upward direction when not injecting. Further, each of the protruding pieces constituting the elastic member 41e is made of resin, and can be easily deformed by pushing down the stem 47b.

  In the aerosol product 1b of the present embodiment including the valve mechanism 4b described above, in the valve mechanism 4b, the stem 47b (second internal stem passage 49d) has a passage (viscosity) for taking out the viscous stock solution C2 filled in the outer container 2. A second passage) for taking out the stock solution C2 is formed. Further, in the aerosol product 1b, in the valve mechanism 4b, the housing 47a and the stem 47b (first internal stem passage 49c) have a passage (foaming composition C1) for taking out the foaming composition C1 filled in the inner container 3a. An example of a first passage for taking out the) is formed.

(Discharge member)
The discharge member 6 is a member for discharging the foamable composition C1 and the viscous stock solution C2, and is attached to the upper end of the stem 47b. The ejection member 6 mainly includes a linear nozzle portion 61 and an operation portion 62 operated by a user with his / her finger or the like. The nozzle portion 61 is a double-cylindrical portion, and has an inner container passage 63 through which the foamable composition C1 passes and an annular outer container passage 64 through which the viscous stock solution C2 passes. The outer container passage 64 is formed so as to cover the inner container passage 63. Therefore, the viscous stock solution C2 discharged from the upper end of the outer container passage 64 can be discharged so as to annularly cover the foamable composition C1 discharged from the upper end of the inner container passage 63.

<How to use aerosol product 1b>
Next, a method of using the aerosol product 1b of this embodiment will be described. The aerosol product 1b of this embodiment is preferably used in an inverted state. First, the aerosol product 1b is held in an inverted state, so that the circumference of the cylindrical portion 47g is immersed in the foamable composition C1 filled in the inner container 3a.

  When the operating portion 62 of the discharge member is pushed down in this state, the stem 47b of the valve mechanism 4b is pushed downward (toward the bottom surface of the external container 2). As a result, the first stem rubber 47e and the second stem rubber 47f bend in the direction of the bottom surface of the outer container 2, and the first stem hole 47c and the second stem hole 47d are opened. As a result, the inside of the outer container 2 and the outside, and the inside of the inner container 3a and the outside communicate with each other.

  When the inside of the internal container 3a communicates with the outside, the foamable composition C1 inside the internal container 3a passes through the first stem hole 47c and the first stem internal passage 49c in order according to the pressure difference between the inside of the internal container 3a and the outside. It passes and is sent to the ejection member 5a. At the same time, the inner container 3a is expanded by the foamable composition C1 and the pressure of the pressurizing agent appropriately filled. As a result, the outer peripheral surface of the flexible inner container 3a presses the viscous stock solution C2 hermetically filled in the outer container 2. Here, the inside of the outer container 2 and the outside communicate with each other. Therefore, the viscous stock solution C2 in the outer container 2 is pressed by the expanding inner container 3a, passes through the groove 31a, the second stem hole 47d, and the second intra-stem passage 49d in order, and is urged to be sent to the discharge member 5a. .

  The foamable composition C1 taken into the ejection member 5a is ejected from the opening at the upper end of the internal container passage 63. On the other hand, the viscous stock solution C2 taken into the ejection member 5a is ejected from the opening at the upper end of the external container passage 64. The outer container passage 64 is formed so as to cover the inner container passage 63. Therefore, the viscous stock solution C2 is discharged so as to cover the foamable composition C1. The ejected material has the viscous stock solution C2 spread by the foamable composition C1 which continues to foam somewhat after ejection. As a result, the discharged product has an enhanced gloss and luster on the surface and exhibits an excellent aesthetic appearance. The foamable composition C1 is covered with the viscous stock solution C2. Therefore, in the foamable composition C1, foaming is suppressed and it is difficult to defoam. As a result, the obtained discharge product can retain the spherical shape exhibiting excellent luster and luster for a relatively long time, and is excellent in taste.

  The embodiment of the present invention has been described above. The present invention can employ the following modified embodiments, for example.

  (1) In the above embodiment, an aerosol product capable of discharging a substantially spherical discharge product by using a discharge member including a nozzle portion in which a double cylindrical pipe line (inner pipe line and outer pipe line) is formed. Illustrated. Alternatively, the present invention may be an aerosol product including a discharge member capable of discharging the viscous stock solution so as to cover at least a part of the foamable composition. FIG. 8: is a schematic diagram of the aerosol product of the modification of this invention. In this modified example, the ejection member 5a has a rectangular inner container ejection port 51a and a rectangular outer container ejection port 51b formed vertically. Therefore, a part (for example, the upper surface) of the foamable composition of the discharge product discharged from the discharge member 5a is likely to be covered with the viscous stock solution. Therefore, by ejecting the aerosol composition while moving it along, for example, the arm, a horizontally long ejected substance can be obtained. At this time, irritation, cooling sensation, and the like due to foaming of the foamable composition can be imparted to the arms and the like. Further, when the specific active ingredient is blended only in the foamable composition, the discharge can apply the active ingredient to the arm or the like. On the other hand, since the upper surface of the foamable composition is covered with the viscous stock solution, the discharged material is less likely to break. As a result, irritation and cold feeling can be maintained for a long time.

  Hereinafter, the present invention will be described more specifically with reference to Examples. The invention is in no way limited to these examples.

<Example 1>
A gel-like viscous stock solution having a light-transmitting property and a stock solution for an effervescent composition were prepared according to the following formulations. An outer container made of polyethylene terephthalate was filled with 42.5 g of the stock solution for the foamable composition, and the valve mechanism (see FIG. 1) was fixed. From the stem of the second valve mechanism for the inner container, 50 g of the viscous stock solution was filled in the inner container, and 7.5 g of the propellant was filled from the stem of the first valve mechanism for the outer container. Further, nitrogen was filled as a pressurizing agent from the stem of the first valve mechanism and the pressure was adjusted to 0.5 MPa to manufacture an aerosol product for discharging two liquids. The viscosity of the stock solution at 20 ° C. was 40,000 mPa · s.

(Viscous stock solution)
Polyacrylate Cross Polymer-6 (* 1) 2.00
Propylene glycol 1.00
Methylparaben 0.10
Red No. 102 0.01
Purified water 96.89
Total 100.0 (mass%)

* 1: SEPIMAX ZEN (trade name), manufactured by SEPPIC SA

(Undiluted solution for foamable composition)
Myristic acid 4.6
Stearic acid 2.4
Polyoxyethylene cetyl ether 1.0
Sorbitol 5.0
Purified water 34.0
Glycerin 10.0
Triethanolamine 10% aqueous solution 43.0
Total 100.0 (mass%)

(Foamable composition)
Stock solution for effervescent composition 85.0
Propellant (* 2) 15.0
Total 100.0 (mass%)

* 2: Mixture of normal butane, isobutane and isopentane Pressure at 20 ° C: 0.13 MPa

<Example 2>
An aerosol product for two-component discharge was produced in the same manner as in Example 1 except that a mixture of normal butane and isobutane (pressure at 20 ° C. was 0.15 MPa) was used as the propellant in the foamable composition of Example 1. did.

<Example 3>
Aerosol product for discharging two liquids in the same manner as in Example 1 except that a mixture of normal butane, isobutane and propane (pressure at 20 ° C. is 0.30 MPa) was used as a propellant in the foamable composition of Example 1. Was manufactured.

<Example 4>
Of the viscous stock solution of Example 1, the content of the polyacrylate crosspolymer-6 was set to 1.0% by mass, and the purified water was contained in an amount of 97.89% by mass. An aerosol product was produced. The viscosity of the stock solution at 20 ° C. was 25,000 mPa · s.

<Comparative Example 1> Example using a composition that does not foam A two-component discharge aerosol product was manufactured in the same manner as in Example 1 except that the propellant of the foamable composition of Example 1 was not filled.

<Comparative Example 2> Example using a composition that does not foam In the same manner as in Example 1 except that isopentane (pressure at 20 ° C: 0.08 MPa) was used as a propellant in the foamable composition of Example 1. An aerosol product for two-liquid discharge was manufactured.

<Comparative Example 3> Example in which a non-viscous stock solution was used Example 1 except that the viscous stock solution of Example 1 did not contain polyacrylate crosspolymer-6 and contained 98.89% by mass of purified water. A two-liquid discharge aerosol product was produced in the same manner as in 1.

  With respect to the aerosol products prepared in Examples 1 to 4 and Comparative Examples 1 to 3, the state of ejected products, the state of the surface, and the holding property were evaluated according to the following evaluation methods. The results are shown in Table 1.

(Discharged product state)
The aerosol product was immersed in a constant temperature water bath at 25 ° C. for 1 hour and discharged.
(Evaluation criteria)
⊚: The discharged product foamed from the inside and swelled, and contained a bubble inside and formed a uniform film of gel having a translucent surface.
◯: The discharged product foamed from the inside to rise and formed a gel film containing bubbles inside and having translucency. The gel film was partially torn.
X: The discharged product was only gel or only bubbles.

(Surface condition)
The surface condition of the discharged product was compared with that of the viscous stock solution.
(Evaluation criteria)
◯: The surface of the discharged product was glossier than that of the viscous stock solution.
X: The surface of the discharged product was not different from the viscous stock solution.
-: The surface of the discharged product could not be evaluated because no film was formed.

(Retainability)
The retention time was compared with the discharge product and the foam formed by discharging only the foamable composition.
(Evaluation criteria)
◯: The foam of the discharged product was retained longer than the foam of the foamable composition (the foam was retained for 1 minute or more).
X: The foam of the discharged product was not different from the foam of the foamable composition (the foam disappeared within 1 minute).
-: The discharged product could not be evaluated because it did not form bubbles.

  As shown in Table 1, in the discharge products of Examples 1 to 4 in which the viscous stock solution was discharged so as to cover at least a part of the foamable composition, the viscous stock solution on the surface was removed by the rise of the foamable composition on the inside. It can be spread and the luster and luster are enhanced. Further, in these discharge products, the foamable composition was covered with the viscous stock solution, and thus the foam was retained for a long time.

  On the other hand, the discharged products of Comparative Examples 1 and 2 which did not use the foamable composition were only gels. Therefore, these discharges did not have enhanced gloss and gloss (cannot be evaluated) and did not retain bubbles (cannot be evaluated). In addition, the discharged product of Comparative Example 3 using the stock solution having no viscosity was only bubbles. Therefore, gloss and gloss were not enhanced (evaluation was not possible), and bubbles could not be evaluated.

1, 1a, 1b Aerosol product C1 Effervescent composition C2 Viscous stock solution 2, 2a Outer container 3, 3a Inner container 31 First inner container 31a Groove 32 Second inner container 4, 4a, 4b Valve mechanism 41 First valve mechanism 41a , 47a Housing 41b, 47b Stem 41c Stem hole 41d Stem rubber 41e Elastic member 41f Tube mounting part 41g External container dip tube 41h Stem passage 41i dip tube 42 Second valve mechanism 42a Internal container dip tube 42b, 48 Mounting jig 43, 43a Valve body portion 44 Cover cap 45 Protective member 46 Third valve mechanism 47c First stem hole 47d Second stem hole 47e First stem rubber 47f Second stem rubber 47g Cylindrical portion 47h Flange portion 47i Top surface portion 47j Fixed Material 48a Upper surface side extended portion 48b Lower surface side extended portion 49a Upper stem 49b Lower stem 49c First stem internal passage 49d Second stem internal passage 5, 5a, 6 Discharge member 51 Main body 51a, 54d Discharge port 51b for internal container , 53d Discharge port for external container 52 Nozzle part 53 Passage for external container 53a, 54a Straight part 53b, 54b Horizontal part 53c Inner pipe line 54 Passage for internal container 54c Outer pipe line 61 Nozzle part 62 Operation part 63 Passage for internal container 64 External container passage

Claims (7)

A first container filled with the foamable composition;
A container body having a second container filled with a viscous stock solution;
A valve mechanism formed with a first passage for taking out the foamable composition in the first container and a second passage for taking out the viscous stock solution in the second container, and attached to the container body;
A discharge member that is attached to the valve mechanism and has a discharge mechanism for discharging the viscous stock solution so as to cover at least a part of the foamable composition;
The foamable compositions contain a liquefied gas, the pressure at 20 ° C. for liquefied gas Ri 0.1~0.3MPa der,
The discharge mechanism is
One end of the first passage is opened, an inner opening from which the foamable composition is discharged,
An outer opening through which one end of the second passage is opened and from which the viscous stock solution is discharged;
The two-part discharge aerosol product , wherein the outer opening is open to cover at least part of the inner opening .   The two-liquid discharge aerosol product according to claim 1, wherein the pressure of the liquefied gas at 20 ° C is 0.1 to 0.25 MPa.   The two-liquid-discharging aerosol product according to claim 1, wherein the viscous stock solution exhibits translucency.   The two-liquid aerosol product according to claim 1 or 2, wherein the viscous stock solution does not show translucency and is cream-like.   The two-component ejection aerosol product according to claim 1, wherein the viscous stock solution has a viscosity of 5,000 to 50,000 mPa · s. The second container, flexible indicates, the is accommodated in the first container, 2 liquid jetting aerosol product according to any one of claims 1-5. The first container, flexible indicates, the is housed in the second container, 2 liquid jetting aerosol product according to any one of claims 1-5.