JP6912298B2 - Spray foam products - Google Patents

Description

The present invention relates to a spray-type foamed product. More specifically, in the present invention, the injected effervescent composition has excellent adhesion to the injection target, is less likely to bounce or scatter, and bursts so that it can be popped one after another on the injection target. The present invention relates to a spray-type foam product capable of forming a foam.

Patent Document 1 discloses an effervescent aerosol product capable of injecting an effervescent composition that ruptures so as to pop after foaming on an object.

Japanese Unexamined Patent Publication No. 2012-46725

However, the effervescent aerosol product described in Patent Document 1 uses a liquefied gas having a vapor pressure of 0.2 to 0.55 MPa at 20 ° C. Therefore, the injected effervescent composition becomes a fine mist and easily scatters, and is easily inhaled by the user. Further, since the liquefied gas is used in this effervescent aerosol product, the injection momentum is relatively strong, and the foaming aerosol product tends to bounce off the object to be injected. In addition, the bounced effervescent composition tends to fall and stain the floor surface.

The present invention has been made in view of such conventional problems, and the injected effervescent composition has excellent adhesion to the injection target, is less likely to bounce or scatter, and is the injection target. It is an object of the present invention to provide a spray-type foamed product capable of forming a foam that bursts so as to be popped one after another.

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

(1) The aqueous stock solution is provided with a container body filled with an effervescent composition containing an aqueous stock solution and a foaming agent, and a pressurizing mechanism attached to the container body for pressurizing the effervescent composition. Contains a surfactant, alcohol, oil and water, the foaming agent is contained in an amount of 5 to 40% by mass in the foaming composition, and the vapor pressure at 35 ° C. is 0.05 to 0.2 MPa. , Spray foam products.

According to such a configuration, the spray-type foamed product can appropriately pressurize the effervescent composition by the pressurizing mechanism and spray the effervescent composition over a wide range in the form of mist by the pressure of the foaming agent. The sprayed effervescent composition easily adheres to the sprayed object and is less likely to bounce or scatter. In addition, the attached foaming composition foams on the object to be jetted, and then foams so as to pop one after another. Thereby, the spray-type foamed product can remove, for example, dirt on the injection target by the physical action of the foam rupture. Furthermore, as the spray-type foamed product continues to be used, the contents in the container body are reduced. However, in the spray-type foamed product, the foaming agent vaporizes in the container body according to the vapor pressure. Therefore, in the spray-type foamed product, even when the amount of the foamable composition is reduced by use, a part of the foaming agent is vaporized in the container body according to the vapor pressure to keep the internal pressure of the container body constant. Can be maintained. Further, in the spray-type foamed product, the foamable composition is appropriately pressurized by a pressurizing mechanism. As a result, the spray-type foamed product tends to obtain a stable sprayed state even in the final stage, and the sprayed foamable composition tends to burst so that it can be popped one after another on the sprayed object.

(2) The pressurizing mechanism includes a housing for storing the effervescent composition and a stem mechanism for pressurizing the effervescent composition in the housing, and the housing introduces air for introducing air. The spray-type foamed product according to (1), wherein no holes are formed.

In general pump products, for example, an air introduction hole for introducing air from the outside is formed. Therefore, if the pump product does not have such an air introduction hole, the internal pressure of the container of the pump product decreases, and the container body is irregularly deformed to make it difficult to inject. Therefore, air introduction holes are indispensable for general pump products. However, pump products in which air introduction holes are formed tend to have low airtightness and poor storage stability of the effervescent composition. On the other hand, according to the above configuration, since the spray-type foamed product does not have air introduction holes, the airtightness is high, the storage stability is excellent, and the foaming agent is less likely to leak. Further, in the spray-type foamed product, the foaming agent vaporizes in the container body according to the vapor pressure after injection, and it is easy to maintain the internal pressure of the container body within a specific range. As a result, even if the spray-type foamed product is continuously used even though the air introduction hole is not formed, the internal pressure of the container body does not decrease and the container body is not easily deformed.

(3) The foaming composition further contains a pressurizing agent, and the internal pressure of the container body at 25 ° C. is pressurized to 0.2 to 0.5 MPa, according to (1) or (2). Spray foam product.

According to such a configuration, the spray-type foamed product can also continuously spray the foamable composition by containing a pressurizing agent.

According to the present invention, the injected effervescent composition has excellent adhesion to the object to be sprayed, is less likely to bounce or scatter, and is a foam that bursts so that it can be popped one after another on the object to be sprayed. It is possible to provide a spray-type foam product that can be formed.

FIG. 1 is a schematic cross-sectional view of a spray-type foamed product according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the pressurizing mechanism of the spray-type foamed product according to the embodiment of the present invention. FIG. 3 is a cross-sectional view of a pressurizing mechanism displaced to a continuous injection state in which continuous injection is performed in the spray-type foamed product according to the embodiment of the present invention. FIG. 4 is a schematic cross-sectional view of a spray-type foamed product according to an embodiment of the present invention, which includes a pressurizing mechanism that is displaced to a pump injection state in which pump injection is performed. FIG. 5 is a cross-sectional view of a pressurizing mechanism displaced to a pump injection state in which pump injection is performed in the spray foam product according to the embodiment of the present invention.

[Spray foam product]
The spray-type foamed product according to the embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic cross-sectional view of the spray-type foamed product 1 of the present embodiment. FIG. 2 is an enlarged view of the pressurizing mechanism of the spray-type foamed product 1 of the present embodiment shown in FIG. The spray-type foamed product 1 shown in FIGS. 1 and 2 is in a state in which the injection operation is not performed (non-injection state). The spray-type foamed product 1 of the present embodiment is attached to a container body 2 filled with a foaming composition containing an aqueous stock solution and a foaming agent, and a pressure for pressurizing the foaming composition. It mainly includes a mechanism 3 and an injection member 4 attached to the pressurizing mechanism 3. The aqueous stock solution contains a surfactant, alcohol, oil and water. The foaming agent is contained in the effervescent composition in an amount of 5 to 40% by mass, and the vapor pressure at 35 ° C. is 0.05 to 0.2 MPa. Hereinafter, the effervescent composition and the apparatus configuration of the spray-type foamed product 1 of the present embodiment will be described.

<Effervescent composition>
The effervescent composition is filled in the container body 2 and contains an aqueous stock solution and a foaming agent. The effervescent composition is supplied from the container body 2 to the pressurizing mechanism 3 by operating the injection member 4. Specifically, the effervescent composition is taken in from the lower end of the tube 52, passes through the space S1 or is temporarily stored in the space S1, and then the passage 85a in the outer stem of the outer stem 85 and the nozzle of the injection nozzle 41. It is supplied to the inner passage 41b and is injected from the injection hole 43a.

-Aqueous stock solution The aqueous stock solution is a liquid component filled in the container body 2. The aqueous stock solution contains a surfactant, alcohol, oil and water.

The surfactant is blended for the purpose of foaming particles adhering to the injection target, further causing the foamed bubbles to burst so as to pop one after another, removing dirt from the injection target, and the like.

The object to be injected is not particularly limited. For example, the objects to be sprayed are window glass, bathtub, bathroom, toilet bowl, floor, car, tableware, hair, skin and the like.

The surfactant is not particularly limited. For example, surfactants include polyoxyethylene alkyl ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, and polyoxyethylene polyoxypropylene alkyl. Nonionic surfactants such as ether, polyethylene glycol fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl ether fatty acid ester, and polyoxyethylene sorbit fatty acid ester.

The content of the surfactant is not particularly limited. As an example, the content of the surfactant is preferably 0.1% by mass or more, more preferably 0.5% by mass or more in the aqueous stock solution. The content of the surfactant is preferably 10% by mass or less, more preferably 8% by mass or less in the aqueous stock solution. When the content of the surfactant is less than 0.1% by mass, the injected effervescent composition tends to be difficult to foam on the injection target. On the other hand, when the content of the surfactant exceeds 10% by mass, the injected foamable composition tends to leave bubbles on the injection target.

Alcohol is blended for the purpose of adjusting the foaming property of the particles adhering to the object to be jetted and the foaming property of the foamed bubbles so that the foamed bubbles burst one after another. Alcohol is not particularly limited. As an example, the alcohol is a monohydric alcohol having 2 to 5 carbon atoms such as ethanol, isopropanol, and amyl alcohol.

The alcohol content is not particularly limited. As an example, the content of alcohol in the aqueous stock solution is preferably 3% by mass or more, and more preferably 5% by mass or more. The alcohol content in the aqueous stock solution is preferably 30% by mass or less, more preferably 25% by mass or less. When the alcohol content is less than 3% by mass, the injected effervescent composition tends to leave bubbles. On the other hand, when the alcohol content exceeds 30% by mass, the injected effervescent composition tends to be difficult to foam.

The oil content is blended for the purpose of adjusting the foam breaking property. The oil content is not particularly limited. For example, the oil content is isopropyl myristate, myristyl myristate, decyl oleate, isostearyl laurate, isosetyl myristate, isostearyl myristate, octyldodecyl myristate, octyl palmitate, octyl stearate, octyl oleate. Dodecyl, ethyl isostearate, cetyl isooctanate, ethylene glycol dioctanoate, ethylene glycol dioleate, propylene glycol dicapryate, propylene glycol dioleate, glyceryl tricaprylate, glyceryl tri (caprylic acid / capric acid), glyceryl triisostearate, tri Ester oils such as trimethylolpropane 2-ethylhexanoate, octyldodecyl neopentate, hexyldecyl dimethyloctanoate, cetyl lactate, triethyl citrate, dioctyl succinate, diisopropyl adipate, diethoxyethyl succinate, olive oil, avocado oil , Camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, rapeseed oil, sesame oil, castor oil, flaxseed oil, saflower oil, jojoba oil, malt oil, palm oil, palm oil and other oils, kerosene, liquid paraffin , Hydrocarbon oils such as isoparaffin, squalane and squalane, silicone oils such as methylpolysiloxane, methylphenylpolysiloxane and cyclopentasiloxane.

The oil content is not particularly limited. As an example, the oil content is preferably 0.01% by mass or more, and more preferably 0.05% by mass or more in the aqueous stock solution. The oil content is preferably 10% by mass or less, and more preferably 5% by mass or less in the aqueous stock solution. When the oil content is less than 0.01% by mass, the injected effervescent composition has a reduced defoaming property and tends to be less likely to defoam one after another. On the other hand, when the oil content exceeds 10% by mass, the injected effervescent composition tends to be difficult to foam.

Water is blended as the main solvent of the aqueous stock solution. Examples of water include purified water and ion-exchanged water.

The water content is not particularly limited. As an example, the content of water in the aqueous stock solution is preferably 60% by mass or more, and more preferably 70% by mass or more. The water content in the aqueous stock solution is preferably 95% by mass or less, more preferably 93% by mass or less. When the water content is less than 60% by mass, the injected effervescent composition tends to be less likely to foam on the object to be injected. On the other hand, when the water content exceeds 95% by mass, it is difficult for the aqueous stock solution to contain an active ingredient or the like described later in addition to the surfactant, alcohol and oil, and it tends to be difficult to obtain the desired effect.

The aqueous stock solution may appropriately contain an active ingredient in addition to the above-mentioned compounding ingredients. The active ingredient is not particularly limited. For example, the active ingredients are cleaning agents such as anionic surfactants, treatment agents such as cationic surfactants, ethylhexyl methoxycinnamate, hexyl diethylaminohydroxybenzoylbenzoate, and t-butylmethoxybenzoylmethane. UV absorbers such as N, N-diethyl-m-toluamide (diet), herb extracts, pest repellents such as p-menthan-3,8-diol, insecticidal components such as phthalthrin, aresulin, permethrintefluthrin, benzalkonium chloride , L-menthol, refreshing agents such as camphor, deodorant components such as lauryl methacrylate, geranyl chloride, acetophenone myristate, benzyl acetate, benzyl propionate, methyl phenylacetate, methyl benzoate, methyl phenylacetate, paraoxybenzoic acid Sterils, sodium benzoate, potassium sorbate, ethylene glycol monophenyl ether, benzalkonium chloride, benzethonium chloride, chlorhexidine chloride, photosensitizers, bactericidal disinfectants such as parachlormethacresol, fragrances and the like.

When the active ingredient is contained, the content of the active ingredient is not particularly limited. As an example, the content of the active ingredient is preferably 0.01% by mass or more, and more preferably 0.05% by mass or more in the aqueous stock solution. The content of the active ingredient is preferably 20% by mass or less, more preferably 15% by mass or less in the aqueous stock solution. When the content of the active ingredient is less than 0.01% by mass, it is difficult to obtain the effect of blending the active ingredient. On the other hand, when the content of the active ingredient exceeds 20% by mass, it is difficult to recognize that the spray-type foamed product 1 further improves the effect by containing the active ingredient.

The aqueous stock solution may appropriately contain powder. The powder is suitably blended for the purpose of adsorbing the active ingredient to maintain the effect, facilitating the removal of stains, and the like. The powder is not particularly limited. For example, the powders are talc, 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 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, and more preferably 0.3% by mass or more in the aqueous stock solution. The content of the powder is preferably 5% by mass or less, and more preferably 3% by mass or less in the aqueous stock solution. When the content of the powder is less than 0.1% by mass, it is difficult to obtain the effect of blending the powder. On the other hand, when the powder content exceeds 5% by mass, the spray-type foamed product 1 tends to be clogged with the pressurizing mechanism 3 and the injection hole 43a.

The content of the aqueous stock solution is not particularly limited. As an example, the aqueous stock solution is preferably 60% by mass or more, more preferably 65% by mass or more in the effervescent composition. The aqueous stock solution is preferably 95% by mass or less, more preferably 90% by mass or less in the effervescent composition. When the content of the aqueous stock solution is less than 60% by mass, the injected effervescent composition is likely to scatter and is less likely to adhere to the injection target. On the other hand, when the content of the aqueous stock solution exceeds 95% by mass, the injected effervescent composition is less likely to foam on the injection target and easily drips.

The method for preparing the aqueous stock solution is not particularly limited. As an example, the aqueous stock solution can be prepared by dissolving, emulsifying and dispersing each of the above-mentioned components (surfactant, alcohol, oil, active ingredient, powder, etc.) in water.

-Effervescent agent The foaming agent is added to foam the aqueous stock solution on the injection target and then to break the foam one after another in a short time. Further, when the housing 5 described later is not provided with the air introduction hole, the foaming agent is blended in order to keep the internal pressure of the container body 2 constant so that the container body 2 is not deformed even if the container body 2 is continuously used. Further, the foaming agent facilitates the introduction of the foamable composition in the container body 2 into the pressurizing mechanism 3 described later. Further, the foaming agent can appropriately give momentum to the foaming composition when sprayed, so that the foaming composition can be sprayed over a wide range in the form of a mist. At this time, in the spray-type foaming product 1, even when the amount of the foaming composition is reduced by use, a part of the foaming agent is vaporized in the container body 2 and the foaming composition is appropriately added. It can be pressed and sprayed. As a result, the spray-type foamed product 1 tends to obtain a stable injection state until the final stage. Further, since the conventional pump product does not contain a foaming agent, it is not possible to obtain a cooling sensation due to the vaporization of the foaming composition. However, the spray-type foaming product 1 of the present embodiment contains a foaming agent. It is easy to get a feeling of cooling due to the heat of vaporization.

The foaming agent is not particularly limited. For example, the foaming agent is normalpentane, isopentane, normalbutane, isobutane and a mixture thereof, an aliphatic hydrocarbon having 4 to 5 carbon atoms, 1-chloro-3,3,3-trifluoropropene. Hydrofluoroolefins such as, and mixtures thereof. The foaming agent is appropriately selected from these and mixed so that the vapor pressure at 35 ° C. is 0.05 to 0.2 MPa (gauge pressure). The vapor pressure may be adjusted to be 0.05 MPa or more, and preferably 0.07 MPa or more. Further, the vapor pressure may be adjusted to be 0.2 MPa or less, and preferably 0.18 MPa or less. When the vapor pressure is less than 0.05 MPa, the pressure inside the container body 2 of the spray-type foamed product 1 becomes low, and the sprayed foamable composition becomes difficult to foam. On the other hand, when the vapor pressure exceeds 0.2 MPa, the injected effervescent composition tends to bounce off and scatter on the injection target.

The content of the foaming agent is not particularly limited. As an example, the foaming agent is preferably 5% by mass or more, and more preferably 7% by mass or more in the foamable composition. The foaming agent is preferably 40% by mass or less, more preferably 35% by mass or less in the foamable composition. When the content of the foaming agent is less than 5% by mass, the foaming composition tends to have weak foaming and to be difficult to foam so as to pop. On the other hand, when the content of the foaming agent exceeds 40% by mass, the injected foamable composition tends to leave bubbles on the injection target.

The effervescent composition preferably has a pressure (gauge pressure) at 25 ° C. of 0.05 MPa or more, more preferably 0.06 MPa or more. Further, the effervescent composition preferably has a pressure (gauge pressure) at 25 ° C. of 0.20 MPa or less, more preferably 0.15 MPa or less. When the pressure of the effervescent composition is less than 0.05 MPa, the injected effervescent composition tends to be difficult to foam on the object to be injected. On the other hand, when the pressure of the effervescent composition exceeds 0.20 MPa, the injected effervescent composition tends to leave bubbles on the injection target.

The foamable composition of the spray-type foamed product 1 of the present embodiment may further contain a pressurizing agent, whereby the internal pressure (gauge pressure) of the container body 2 at 25 ° C. is pressurized to 0.2 MPa or more. It is preferable that the pressure is increased to 0.25 MPa or more, and it is more preferable that the pressure is increased to 0.25 MPa or more. Further, the internal pressure (gauge pressure) of the container body 2 at 25 ° C. is preferably pressurized to 0.5 MPa or less, and preferably 0.4 MPa or less. By including the pressurizing agent so as to have such an internal pressure, the spray-type foamed product 1 can easily continuously inject the foamable composition by lightly operating the trigger portion 42 g described later. When the filling amount of the pressurizing agent is less than the amount at which the internal pressure of the container body 2 becomes 0.2 MPa, the spray-type foamed product 1 is difficult to continuously inject the foamable composition. On the other hand, when the filling amount of the pressurizing agent is such that the internal pressure of the container body 2 exceeds 0.5 MPa, the spray-type foamed product 1 tends to deform the container body 2 and deteriorate the operability. .. The pressurizing agent is filled in the container body 2 together with the aqueous stock solution, and most of the pressurizing agent is present in the gas phase in the container body 2 in the container body 2 to pressurize the effervescent composition. The pressurizing agent is not particularly limited. As an example, the pressurizing agent is nitrogen gas, carbon dioxide gas, nitrous oxide gas, compressed air and the like.

<Device configuration>
Next, the apparatus configuration of the spray-type foamed product 1 for injecting the foamable composition will be described. The device configuration of the spray-type foamed product 1 shown below is an example. That is, the apparatus configuration of the spray-type foamed product 1 of the present embodiment may be such that the container body 2 and the pressurizing mechanism 3 are provided so that the foamable composition can be pressurized and sprayed. In this embodiment, as a preferred example, an example in which the pressurizing mechanism 3 includes the housing 5 and the stem mechanism 8 and the air introduction hole for introducing air into the housing 5 is not formed will be described.

(Container body 2)
The container body 2 is a container for filling the effervescent composition, and has a bottomed tubular main body 21 and a tubular body 21 having a diameter smaller than that of the main body 21 and integrally provided on the upper part of the main body 21. Including the neck 22 of the. An opening is formed in the upper part of the neck portion 22. The opening is a filling port for filling the aqueous stock solution, and is sealed by the pressurizing mechanism 3 after the aqueous stock solution is filled.

The material constituting the container body 2 is not particularly limited. Examples of the material constituting the container body 2 include polyethylene terephthalate, synthetic resins such as polyethylene and polypropylene, glass, and metals such as aluminum and tinplate. When a synthetic resin is used, for example, an ultraviolet absorber may be contained in order to prevent deterioration of the aqueous stock solution due to sunlight, and when the effervescent composition contains the above-mentioned pressurizing agent, the pressurizing agent permeates. Carbon, silica, or the like may be vapor-deposited on the outer surface or the inner surface of the container body 2 in order to prevent the above. When a synthetic resin is used, the wall thickness of the body portion is preferably 0.1 to 0.5 mm, more preferably 0.15 to 0.4 mm. When the wall thickness of the body portion is less than 0.1 mm, the container body 2 tends to be easily deformed by the pressure or heat of the pressurizing agent. On the other hand, when the wall thickness of the body portion exceeds 0.5 mm, the container body 2 tends to require a large amount of synthetic resin.

(Pressure mechanism 3)
The pressurizing mechanism 3 is a member for sealing the inside of the container body 2 and taking in the effervescent composition from the container body 2 to pressurize. The pressurizing mechanism 3 includes a tubular housing 5, a valve body 6 housed in the housing 5, a contact member 7 for controlling the upward displacement of the piston member 82 described later, and a screw cap 9. Mainly prepare. The valve body 6 includes a stem mechanism 8 that is slidably housed in the housing 5 in the vertical direction. The pressurizing mechanism 3 can be displaced from the non-injection state to the pump injection state in which pump injection is performed. Further, the pressurizing mechanism 3 can be displaced from the non-injection state to the continuous injection state in which the foamable composition is continuously injected.

・ Housing 5
The housing 5 includes a tubular housing body 51.

The housing body 51 is a cylindrical member in which a space S1 through which the foamable composition taken in from the container body 2 passes or is temporarily stored is formed. The housing body 51 has an upper end formed with an opening in which the outer stem 85, which will be described later, appears and disappears, and a lower end to which a tube 52 for taking in the foamable composition stored in the container body 2 is connected.

A flange portion 51a protruding outward in the radial direction is provided around the upper end of the housing body 51. The flange portion 51a is placed on the upper surface of the opening of the container body 2 and is a portion for positioning the housing body 51. The size (outer diameter) of the flange portion 51a is the outer diameter of the neck portion 22 of the container body 2. Approximately matches. A gasket 53 is attached to the lower surface of the flange portion 51a, and the inside of the container can be airtightly sealed by sandwiching the gasket 53 between the lower surface of the flange portion 51a and the upper surface of the opening of the neck portion 22. When the housing body 51 is positioned by the flange portion 51a, the outer peripheral wall of the housing body 51 and the inner peripheral wall of the neck portion 22 of the container body 2 are separated from each other.

A small diameter portion 51b having a diameter smaller than that of the housing body 51 is formed near the lower end of the housing body 51. The tube 52 is inserted into the small diameter portion 51b. The tube 52 is a relatively long cylindrical member extending to the vicinity of the inner bottom of the container body 2, and is immersed in one end inserted into the small diameter portion 51b and the foamable composition stored in the container body 2 to foam. It has an other end with an opening for taking in the sex composition.

In the center of the small diameter portion 51b, a foaming composition intake hole 51c for introducing the foamable composition taken in from the container body 2 via the tube 52 into the space S1 of the housing body 51 is formed. A check valve mechanism 54 is provided at a connection point between the foamable composition intake hole 51c and the space S1.

The check valve mechanism 54 is a valve mechanism for taking in the effervescent composition from the container body 2 to the space S1 in one direction, and appropriately opens and closes the effervescent composition intake hole 51c. The check valve mechanism 54 has a recess 54a formed by the inner peripheral wall of the housing body 51 bulging inward in the radial direction in the vicinity of the lower end of the housing body 51, and a ball 54b dropped into the recess 54a. include. When the injection member 4 is not operated, the ball 54b closes the communication point between the foamable composition intake hole 51c and the space S1 by its own weight. On the other hand, the ball 54b is lifted by the liquid flow generated when the foamable composition in the container body 2 is taken into the space S1 when the pressurizing mechanism 3 is in the pump injection state in which the pump injection described later is performed. , The communication point between the foamable composition intake hole 51c and the space S1 is opened.

The screw cap 9 is a member for pressing the upper surface of the contact member 7 and improving the airtightness inside the container body 2. The screw cap 9 is provided with a disk-shaped top plate 9a having an opening formed in the center, a side peripheral portion 9b provided downward from the outer peripheral edge of the top plate 9a, and an upward portion from the inner peripheral edge of the top plate 9a. It has a cylindrical mounting portion 9c. A screw portion is formed on the inner surface of the side peripheral portion 9b, and is screwed to the screw portion of the neck portion 22 of the container body 2. The mounting portion 9c includes a cover portion 9d that is radially inwardly provided on the inner peripheral wall, and an engaging portion 9e that is provided so as to project radially outward on the outer peripheral wall. The cover portion 9d is a portion for positioning the contact member 7 described later with respect to the housing main body 51. The engaging portion 9e is a portion for attaching the injection member 4 to the screw cap 9.

・ Valve body 6
The valve body 6 is a member for sending the foamable composition taken in from the container body 2 to the injection member 4, and includes a stem mechanism 8 slidably housed in the housing body 51 in the vertical direction. The stem mechanism 8 includes a stem main body 81, a piston member 82 that slides in the housing 5 in the vertical direction in cooperation with the stem main body 81, and a spring member 83 that biases the stem main body 81 upward.

The stem body 81 is attached to an internal stem 84 for preventing the foamable composition from being injected to the outside from the space S1 by abutting against the piston member 82 in a non-injection state, and an upper portion of the internal stem 84. It is composed of an external stem 85 that appears and disappears from an opening formed at the upper end of the housing body 51. The inner stem 84 and the outer stem 85 are provided coaxially, and integrally slide in the housing body 51 in the vertical direction.

The internal stem 84 has a substantially bowl-shaped downward shape, and has a bowl-shaped portion 84a having a relatively large diameter to which the upper end of the spring member 83 is connected to the lower surface, and a bowl-shaped portion 84a having a diameter smaller than that of the bowl-shaped portion 84a. Includes a cylindrical cylindrical portion 84b extending upward from the center of the upper surface.

An annular contact groove 84c is formed at the connection point between the upper surface of the bowl-shaped portion 84a and the cylindrical portion 84b so that the lower end of the inner sliding portion 86 of the piston member 82 abuts. The upper end of the spring member 83 is inserted into the lower surface of the bowl-shaped portion 84a. A notch groove 84d extending in the vertical direction of the bowl-shaped portion 84a is formed on the outer peripheral edge of the bowl-shaped portion 84a. Further, of the lower surface of the bowl-shaped portion 84a, the vicinity of the outer peripheral edge abuts on the contact step portion 51d that bulges inward in the radial direction from the inner peripheral surface of the housing body 51 in the pump injection state described later. The stem body 81 comes into contact with the contact step portion 51d in the pump injection state to prevent downward sliding.

The outer stem 85 is formed with an outer stem inner passage 85a through which the foamable composition taken into the housing 5 passes, and has a truncated cone-shaped skirt portion 85b and a reduced diameter from the upper end to the upper side of the skirt portion 85b. Includes the formed tubular portion 85c. The upper end of the tubular portion 85c protrudes from the container body 2, and the injection member 4 is attached.

On the inner peripheral surface of the skirt portion 85b, a contact step portion 85d that is pressed against the piston member 82 when the pressurizing mechanism 3 is displaced from the non-injection state described later to the pump injection state is formed. The inner diameter of the skirt portion 85b is larger than the outer diameter of the cylindrical portion 84b. Therefore, the inner peripheral wall of the skirt portion 85b and the outer peripheral wall of the cylindrical portion 84b are separated from each other. The upper inner sliding portion 86a of the piston member 82, which will be described later, is inserted into the space formed so separated.

The inner diameter of the tubular portion 85c is about the same as the outer diameter of the cylindrical portion 84b. Therefore, the outer stem 85 is attached to the inner stem 84 by inserting the upper portion of the cylindrical portion 84b from the lower end side of the tubular portion 85c.

The piston member 82 is a member for partitioning the space S1 inside the housing main body 51, and slides in the housing main body 51 in the vertical direction in cooperation with the inner stem 84 and the outer stem 85 as appropriate. The piston member 82 includes an inner sliding portion 86 that slides along the outer peripheral wall of the inner stem 84, an outer sliding portion 87 that slides along the inner peripheral wall of the housing body 51, and an inner sliding portion 86 and an outer side. Includes a connecting ring 88 that connects the sliding portion 87. The connecting ring 88 connects the inner sliding portion 86 and the outer sliding portion 87 near the center.

The inner sliding portion 86 includes an upper inner sliding portion 86a corresponding to the upper portion of the connection portion with the connecting ring 88, and a lower inner sliding portion 86b corresponding to the lower portion of the connecting portion with the connecting ring 88.

The upper end of the upper inner sliding portion 86a is inserted into the space formed between the outer peripheral wall of the inner stem 84 and the inner peripheral wall of the skirt portion 85b of the outer stem 85, and the pressurizing mechanism 3 pumps from the non-injection state. When the outer stem 85 and the inner stem 84 are slid downward when displaced to the state, they are inserted deeper into the space formed by the outer peripheral wall of the inner stem 84 and the inner peripheral wall of the outer stem 85. When the piston member 82 is displaced from the non-injection state to the pump injection state, the piston member 82 brings the lower inner sliding portion 86b into contact with the contact groove 84c, and then slides downward integrally with the stem body 81. do.

When the inner stem 84 is urged upward by the spring member 83, the lower inner sliding portion 86b is urged upward by abutting the vicinity of the contact groove 84c of the bowl-shaped portion 84a with the lower end.

The outer sliding portion 87 is a columnar member and slides along the inner peripheral wall of the housing body 51. Further, the outer sliding portion 87 includes an upper outer sliding portion 87a corresponding to the upper portion of the connection portion with the connecting ring 88 and a lower outer sliding portion 87b corresponding to the lower portion of the connecting portion with the connecting ring 88. ..

When the upper end of the upper outer sliding portion 87a is urged upward by the spring member 83 via the inner stem 84, it comes into contact with the lower end of the contact member 7 described later.

The connecting ring 88 is a portion that connects the inner sliding portion 86 and the outer sliding portion 87.

Examples of the material constituting the piston member 82 include elastic materials such as synthetic resin, silicone rubber, and synthetic rubber.

The spring member 83 is a member for urging the stem body 81 upward, and has an upper end connected to the lower surface of the bowl-shaped portion 84a and a lower end attached around the recess 54a. The spring member 83 is arranged in the housing body 51 in a compressed state, and urges the internal stem 84 upward. Further, the lower end of the spring member 83 is reduced in diameter toward the inside in the radial direction so as to be smaller than the diameter of the ball 54b. As a result, even when the ball 54b is pushed upward by the liquid flow when the foamable composition is taken in from the container body 2 in the pump injection state described later, the ball 54b is pushed by the lower end of the spring member 83. Be stopped.

The valve body 6 configured in this way is fixed to the container body 2 by screwing the screw cap 9 into the container body 2.

・ Contact member 7
The abutting member 7 is fitted into the opening of the housing body 51 and abuts on the stem body 81 to position the stem body 81, and further abuts on the upper end of the upper outer sliding portion 87a of the piston member 82 to abut the piston member 82. It is a member for positioning.

The contact member 7 includes a top surface portion 71 that comes into contact with the back surface of the screw cap 9, and a tubular contact leg portion 72 that is fitted into the opening of the housing body 51. The top surface portion 71 is sandwiched between the back surface of the screw cap 9 and the flange portion 51a of the housing body 51. As a result, the contact member 7 is positioned. The lower end of the contact leg portion 72 abuts on the upper end of the upper outer sliding portion 87a, and defines the position of the piston member 82 in the non-injection state.

(Injection member 4)
The injection member 4 includes an injection nozzle 41 attached to the external stem 85 and an operation unit 42 attached to the screw cap 9.

The injection nozzle 41 is an L-shaped tubular body, and includes one end connected to the upper end of the tubular portion 85c and the other end connected to the tip nozzle 43. On the outer peripheral wall of the injection nozzle 41, a rotation shaft 41a pivotally supported by a bearing formed on the main body portion 42c of the lever 42b, which will be described later, is provided.

The tip nozzle 43 is a jig for adjusting the injection direction, injection shape, etc. of the foamable composition, and one end connected to the injection nozzle 41 and an injection hole 43a into which the foamable composition is injected are formed. The other end is provided. In the spray-type foamed product 1 of the present embodiment, a nozzle tip 43b provided with a mechanical break-up mechanism is attached to the tip nozzle 43. The mechanical breakup mechanism is a mechanism for uniformly spraying the effervescent composition over a wide range, and has a groove (channel) for applying a swirling force to the effervescent composition to make it finer to an appropriate size.

The operation unit 42 is a portion for sliding the stem main body 81 to inject the foamable composition stored in the space S1, and the lever support portion 42a mounted on the mounting portion 9c and the lever support portion 42a. Includes a lever 42b pivotally supported by.

The lever support portion 42a includes a cylindrical main body portion 42c and a support arm 42d protruding from the side wall of the main body portion 42c. The main body portion 42c is formed with an annular groove 42e into which the mounting portion 9c is inserted. The lever support portion 42a is mounted on the screw cap 9 by inserting the mounting portion 9c into the annular groove 42e. A rotation shaft 42f pivotally supported by a bearing (not shown) provided on a lever 42b, which will be described later, is formed in the vicinity of the upper end of the support arm 42d.

The lever 42b is a portion operated by the user at the time of injection, and includes a trigger portion 42g operated by the user at the time of injection. The injection member 4 pushes down the injection nozzle 41 downward when the user pulls the trigger portion 42g.

<Example of displacement of pressurizing mechanism 3>
Next, the displacement of the pressurizing mechanism 3 in the case of injecting the foamable composition using the spray-type foamed product 1 having the above configuration will be described with reference to FIGS. 3 to 5 in addition to FIGS. 1 and 2. NS. FIG. 3 is a schematic enlarged view of the pressurizing mechanism 3 displaced to the continuous injection state in which continuous injection is performed. FIG. 4 is a schematic cross-sectional view of the spray-type foamed product 1 in which the pressurizing mechanism 3 is displaced to the pump injection state in which the pump is injected. FIG. 5 is a schematic enlarged view of the pressurizing mechanism 3 displaced to the pump injection state in which pump injection is performed. The pressurizing mechanism 3 may be displaced from the non-injection state to the pump injection state after passing through the continuous injection state described above. However, the spray-type foamed product 1 of the present embodiment only needs to be able to perform pump injection, and displacement to the continuous injection state is not essential. Therefore, the pressurizing mechanism 3 of the present embodiment is substantially not displaced to the continuous injection state (or to the continuous injection state for a short time) by operating the injection member 4 in a short time by, for example, the user. After the displacement of), it may be displaced from the non-injection state to the pump injection state.

(Non-injection state)
First, in the non-injection state (state before injection) in which the foamable composition is not injected, the inner stem 84, the outer stem 85, and the piston member 82 are urged upward by the spring member 83, as shown in FIG. It is maintained in a state. In this case, the piston member 82 has the lower inner sliding portion 86b in contact with the contact groove 84c. Therefore, the foamable composition is not injected because the passage to the injection member 4 is blocked.

(Continuous injection state)
On the other hand, the pressurizing mechanism 3 can be easily displaced from the non-injection state to the continuous injection state in which continuous injection is performed. Specifically, when the injection nozzle 41 is pushed down somewhat downward by the user operating the trigger portion 42 g, the internal stem 84 and the external stem 85 are integrated and somewhat downward (for example, 1 to 2 mm). ) Sliding. At this time, the piston member 82 does not move because it does not come into contact with the external stem 85. As a result, as shown in FIG. 3, due to this displacement, the lower end of the lower inner sliding portion 86b is separated from the contact groove 84c. As a result, the passage from the space S1 to the injection member 4 is opened. That is, the inside of the container body 2 and the outside are communicated with each other. At this time, since the spray-type foamed product 1 of the present embodiment is filled with a foaming agent having a vapor pressure of 0.05 to 0.2 MPa at 35 ° C., the foamable composition is formed according to the pressure difference from the outside. The ball 54b is lifted upward and supplied to the space S1. Further, the effervescent composition passes through the passage 85a in the outer stem and is continuously injected from the injection hole 43a (see FIG. 1). In FIG. 3, arrow A1 indicates the flow of the effervescent composition taken in from the container body 2. The continuous injection state is particularly stable when the effervescent composition contains a pressurizing agent and the internal pressure of the container body 2 is adjusted to 0.2 to 0.5 MPa.

In the continuous injection state, the effervescent composition is sprayed over a wide area in the form of a mist due to the influence of the pressure-filled foaming agent and the preferably blended pressure agent. Further, in the spray-type foamed product 1, the required amount can be continuously sprayed by maintaining the operated state without repeatedly operating the trigger portion 42 g.

(Pump injection state)
The pressurizing mechanism 3 can be easily displaced from the non-injection state or the continuous injection state to the pump injection state. Specifically, as shown in FIG. 4, the user further operates the trigger portion 42g to further push down the injection nozzle 41 (for example, 3 to 10 mm) downward. At this time, as shown in FIG. 5, the inner stem 84 and the outer stem 85 are integrated until the contact step portion 85d of the skirt portion 85b comes into contact with the upper end of the upper inner sliding portion 86a of the piston member 82. Then, the inner stem 84, the outer stem 85, and the piston member 82 are integrated and slide further downward. As a result, the volume of the space S1 of the spray-type foamed product 1 is reduced. At this time, the ball 54b sinks due to the downward urging due to the decrease in the volume of the space S1 and closes the foamable composition intake hole 51c. Further, the foamable composition (not shown) stored in the space S1 is pressurized, passes through the passage 85a in the outer stem, and is injected from the injection hole 43a (see FIG. 1).

After that, when the operation of the trigger portion 42g by the user is stopped, the return operation and the operation of incorporating the foamable composition into the space S1 are started. That is, the urging force of the spring member 83 pushes the inner stem 84, the outer stem 85, and the piston member 82 upward to return to their original positions, and the space S1 and the outside are cut off again. The upward sliding of the inner stem 84, the piston member 82, and the outer stem 85 is stopped by the upper end of the upper outer sliding portion 87a coming into contact with the lower end of the abutting leg portion 72 of the abutting member 7. ..

In this way, when the inner stem 84, the outer stem 85, and the piston member 82 are pushed up integrally by the spring member 83, the communication between the space S1 and the outside is cut off. Therefore, the ball 54b also moves upward to open the communication point between the foamable composition intake hole 51c and the space S1, and a certain amount of the foamable composition is newly taken into the space S1 from the container body 2. .. Since the spray-type foamed product 1 of the present embodiment includes the check valve mechanism 54, the incorporated foamable composition does not easily flow back. As a result, the spray-type foamed product 1 can easily spray an appropriate amount of the foamable composition, and a stable effect can be easily obtained. Further, as the foaming composition is taken in from the container body 2, the internal pressure inside the container body 2 decreases. However, such a decrease in internal pressure is compensated for by vaporizing the foaming agent according to the vapor pressure. As a result, in the spray-type foamed product 1, the internal pressure of the container body 2 can be maintained within a certain range, and the deformation of the container body 2 can be prevented. Further, in the spray-type foamed product 1 of the present embodiment, when the air introduction hole is not formed in the housing 5, the foaming composition existing in the tube 52 among the newly taken-in fixed amount of the foaming composition. An object is easily held in the tube 52. As a result, the spray-type foamed product 1 can continue to spray the foamable composition without requiring blank shots even when the spraying operation is performed again after a certain period of time.

As described above, in the spray-type foamed product 1 of the present embodiment, since the foaming composition contains a specific amount of a foaming agent having a specific vapor pressure, the internal pressure of the container is likely to be kept constant even if the foaming composition is continuously used. Further, when the air introduction hole is not formed, the spray-type foamed product 1 has high airtightness, excellent storage stability, and the foaming agent is less likely to leak. Further, the effervescent composition containing a specific amount of the foaming agent is pressurized and injected by the pressurizing mechanism 3. According to such an injection form, the effervescent composition can be sprayed over a wide range in the form of a mist. The sprayed effervescent composition easily adheres to the sprayed object and is less likely to bounce or scatter. In addition, the attached effervescent composition bursts so that it can be popped one after another on the object to be jetted. Thereby, the spray-type foamed product can remove, for example, dirt on the injection target by the physical action of the foam rupture. In addition, since the conventional pump product does not contain a foaming agent, it is not possible to obtain a cooling sensation due to the vaporization of the foaming composition, but the spray-type foaming product 1 of the present embodiment contains the above-mentioned foaming agent. Therefore, when it is used on the human body, it is easy to obtain a feeling of cooling due to the heat of vaporization. Further, in the spray-type foaming product 1, even when the amount of the foaming composition is reduced by use, a part of the foaming agent is vaporized in the container body 2 to appropriately pressurize the foaming composition. Can be sprayed. As a result, the spray-type foamed product 1 tends to obtain a stable injection state until the final stage.

The method for producing the spray-type foamed product 1 of the present embodiment is not particularly limited. As an example, in the spray-type foaming product 1, the aqueous stock solution and the foaming agent are filled in the container body 2 to prepare an effervescent composition, and the container body 2 is appropriately filled with a pressurizing agent. 3 can be attached, sealed, and attached to the injection member 4. The foaming agent may be cooled in a filling pipe or a tank and mixed with an aqueous stock solution to form a foaming composition, which may be filled in the container body 2.

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

<Example 1>
The container body (made of polyethylene terephthalate, body thickness: 0.3 mm) shown in FIG. 1 is filled with 90 g (90% by mass) of an aqueous stock solution 1 prepared according to the following formulation, and then a foaming agent having the following formulation. 1 was filled in 10 g (10% by mass), and a pressurizing mechanism provided with a housing in which the air introduction hole shown in FIG. 1 was not formed was attached to the mouth of the container body and sealed. Further, a spray-type foam product was manufactured by attaching the injection mechanism shown in FIG.
(Aqueous stock solution 1)
Polyoxyethylene alkyl ether (* 1) 1.0
Ethanol 20.0
Isopropyl myristate 0.1
Ethylene glycol monophenyl ether 0.5
Purified water 78.4
Total 100.0 (mass%)
* 1: NIKKOL BT-7 (trade name), manufactured by Nikko Chemicals Co., Ltd. (foaming agent 1)
Isopentane 75.0
Isobutane 25.0
Total 100.0 (mass%)
Vapor pressure at 35 ° C: 0.12 MPa

<Example 2>
A spray-type foamed product was produced by the same method as in Example 1 except that the aqueous stock solution 1 was filled with 85 g (85% by mass) and then the foaming agent 1 was filled with 15 g (15% by mass).

<Example 3>
A spray-type foamed product was produced by the same method as in Example 1 except that the aqueous stock solution 1 was filled with 80 g (80% by mass) and then the foaming agent 1 was filled with 20 g (20% by mass).

<Example 4>
A spray-type foamed product was produced by the same method as in Example 1 except that the aqueous stock solution 1 was filled with 70 g (70% by mass) and then the foaming agent 1 was filled with 30 g (30% by mass).

<Example 5>
A spray-type foamed product was produced by the same method as in Example 1 except that the aqueous stock solution 1 was filled with 93 g (93% by mass) and then the foaming agent 1 was filled with 7 g (7% by mass).

<Example 6>
A spray-type foamed product was produced in the same manner as in Example 3 except that the propellant 2 having the following formulation was used.
(Injection agent 2)
Isopentane 75.0
Normal Butane 25.0
Total 100.0 (mass%)
Vapor pressure at 35 ° C: 0.09 MPa

<Example 7>
A spray-type product was produced in the same manner as in Example 3 except that the pressure inside the container was adjusted to 0.3 MPa by further filling with nitrogen gas.

<Example 8>
A spray-type product was produced in the same manner as in Example 3 except that the pressure inside the container was adjusted to 0.4 MPa by further filling with nitrogen gas.

<Example 9>
A spray-type foamed product was produced in the same manner as in Example 3 except that the aqueous stock solution 2 having the following formulation was used.
(Aqueous stock solution 2)
Polyoxyethylene alkyl ether (* 1) 1.0
Ethanol 10.0
Isopropyl myristate 0.1
Ethylene glycol monophenyl ether 0.5
Purified water 88.4
Total 100.0 (mass%)

<Example 10>
A spray-type foamed product was produced in the same manner as in Example 3 except that the aqueous stock solution 3 having the following formulation was used.
(Aqueous undiluted solution 3)
Polyoxyethylene alkyl ether (* 1) 1.0
Ethanol 20.0
Isopropyl myristate 0.5
Ethylene glycol monophenyl ether 0.5
Purified water 78.0
Total 100.0 (mass%)

<Comparative example 1>
A spray-type foamed product was produced by the same method as in Example 1 except that 97 g (97% by mass) of the aqueous stock solution 1 was filled and then 3 g (3% by mass) of the foaming agent 1 was filled.

<Comparative example 2>
A spray-type foamed product was produced by the same method as in Example 1 except that 55 g (55% by mass) of the aqueous stock solution 1 was filled and then 45 g (45% by mass) of the foaming agent 1 was filled.

<Comparative example 3>
The metal container body was filled with 90 g (90% by mass) of the aqueous stock solution 1, then 10 g (10% by mass) of the foaming agent 2 having the following formulation was filled, and an aerosol valve was attached to the mouth of the container body to seal the container body. .. Further, a spray type foam product (aerosol product) was manufactured by attaching an injection button having the same injection hole as the injection mechanism shown in FIG.
(Foaming agent 2)
Normal Butane 45.0
Isobutane 20.0
Propane 35.0
Total 100.0 (mass%)
Vapor pressure at 35 ° C: 0.55 MPa

<Comparative example 4>
A spray-type foamed product was produced in the same manner as in Example 3 except that the aqueous stock solution 4 having the following formulation was used.
(Aqueous undiluted solution 4)
Polyoxyethylene alkyl ether (* 1) 1.0
Isopropyl myristate 0.1
Ethylene glycol monophenyl ether 0.5
Purified water 98.4
Total 100.0 (mass%)

<Comparative example 5>
A spray-type foamed product was produced in the same manner as in Example 3 except that the aqueous stock solution 5 having the following formulation was used.
(Aqueous undiluted solution 5)
Polyoxyethylene alkyl ether (* 1) 1.0
Ethanol 20.0
Ethylene glycol monophenyl ether 0.5
Purified water 78.5
Total 100.0 (mass%)

With respect to the aerosol products obtained in Examples 1 to 10 and Comparative Examples 1 to 5, the product pressure, foaming / foaming state, scattering of the propellant, and stability of the propellant were evaluated by the following evaluation methods. The results are shown in Table 1.

1. 1. Product pressure The container body before attaching the injection mechanism was immersed in a constant temperature water tank at 25 ° C. for 1 hour, and the pressure (MPa, gauge pressure) was measured using a pressure gauge.

2. Foaming / defoaming state Using a spray-type foamed product immersed in a constant temperature water tank at 25 ° C for 1 hour, the sprayed product is sprayed by operating the operation unit three times toward the window glass located 15 cm away from the injection hole. The foaming and defoaming state of the above was evaluated according to the following evaluation criteria. In the case of an aerosol product (Comparative Example 3), the operation unit was operated for 1 second and evaluated in the same manner.
(Evaluation criteria)
⊚: The jet ruptured so that almost all of the bubbles adhering to the glass surface and foamed could be repelled one after another.
◯: In the propellant, a part of the foam that adhered to the glass surface and foamed remained without popping, but most of the foam broke so that it could pop one after another.
Δ: In the propellant, 1/3 to 1/4 of the foam that adhered to the glass surface and foamed remained without popping, but 2/3 to 3/4 of the foam broke so as to pop one after another.
X: The propellant foamed on the glass surface, but most of the bubbles did not disappear.
XX: The propellant did not foam on the glass surface.

3. 3. Scattering of the ejected material Using a spray-type foam product immersed in a constant temperature water tank at 25 ° C. for 1 hour, the spray was sprayed onto a window glass located 15 cm away from the injection hole, and the scattered state of the ejected material was evaluated.
⊚: The propellant had almost no bounce on the glass surface.
◯: The propellant had some rebound on the glass surface, but could not be inhaled.
X: The propellant had a lot of bounce on the glass surface, and the foam fell to the floor surface.

4. Stability of the propellant The injection was repeated until the remaining amount of the foamable composition reached 10 g (10% by mass), and the presence or absence of a change in the foaming / foaming state of the propellant was evaluated.
⊚: The spray-type product was stable with almost no change in foaming and defoaming conditions.
◯: In the spray type product, foaming became weak when the remaining amount was less than 20% by mass.
Δ: In the spray type product, foaming became weak when the remaining amount reached 20 to 40% by mass.
X: The spray-type product became difficult to foam.

As shown in Table 1, all the propellants ejected from the spray-type foamed products of Examples 1 to 10 adhered to the glass surface and foamed one after another. In addition, these jets had almost no bounce. The spray-type foamed products of Examples 7 to 8 could be continuously sprayed by reducing the amount of operation of the trigger portion and sliding the stem by 2 mm, and the sprayed material could be adhered to the glass surface. .. The adhered props foamed on the glass surface and then ruptured one after another. On the other hand, the propellants injected from the spray-type foamed products of Comparative Examples 1, 2, 4 and 5 in which the blending amount of the foaming agent was outside the range of the present invention did not break or foam one after another even if foamed. .. Further, the propellant injected from the aerosol product of Comparative Example 3 easily bounced off and fell to stain the floor surface.

1 Spray foam product 2 Container body 21 Main body 22 Neck 3 Pressurizing mechanism 4 Injection member 41 Injection nozzle 41a Rotating shaft 41b Nozzle passage 42 Operation part 42a Lever support part 42b Lever 42c Main body part 42d Support arm 42e Circular groove 42f Rotating shaft 42g Trigger part 43 Tip nozzle 43a Injection hole 43b Nozzle tip 5 Housing 51 Housing body 51a Flange part 51b Small diameter part 51c Effervescent composition intake hole 51d Contact step 52 Tube 53 Gasket 54 Check valve mechanism 54a Recess 54b Ball 6 Valve body 7 Contact member 71 Top surface part 72 Contact leg part 8 Stem mechanism 81 Stem body 82 Piston member 83 Spring member 84 Internal stem 84a Bowl-shaped part 84b Cylindrical part 84c Contact groove 84d Notch groove 85 External stem 85a External stem inner passage 85b Skirt part 85c Cylindrical part 85d Contact step part 86 Inner sliding part 86a Upper inner sliding part 86b Lower inner sliding part 87 Outer sliding part 87a Upper outer sliding part 87b Lower outer sliding Part 88 Connecting ring 9 Screw cap 9a Top plate 9b Side peripheral part 9c Mounting part 9d Cover part 9e Engagement part A1 Flow of foamable composition S1 First space

Claims (3)

It is provided with a container body filled with an effervescent composition containing an aqueous stock solution and a foaming agent, and a pressurizing mechanism attached to the container body for pressurizing the effervescent composition.
The aqueous stock solution contains a surfactant, alcohol, oil and water, and contains.
The blowing agent, in the foamable composition, contains 5 to 40 mass%, Ri 0.05~0.2MPa der vapor pressure at 35 ° C.,
The pressurizing mechanism
A housing for storing the effervescent composition and a stem mechanism for pressurizing the effervescent composition in the housing are provided.
A spray-type foam product that pressurizes the foamable composition incorporated into the housing. It is provided with a container body filled with an effervescent composition containing an aqueous stock solution and a foaming agent, and a pressurizing mechanism attached to the container body for pressurizing the effervescent composition.
The aqueous stock solution contains a surfactant, alcohol, oil and water, and contains.
The foaming agent is contained in the effervescent composition in an amount of 5 to 40% by mass, and has a vapor pressure of 0.05 to 0.2 MPa at 35 ° C.
The pressurizing mechanism includes a housing for storing the effervescent composition and a stem mechanism for pressurizing the effervescent composition in the housing.
The housing air inlet holes are not formed for introducing air, SPRAY formula foamed product. The effervescent composition further comprises a pressurizing agent.
The spray-type foamed product according to claim 1 or 2, wherein the internal pressure of the container body at 25 ° C. is pressurized to 0.2 to 0.5 MPa.

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