JP6748484B2 - Discharge member for foamable contents - Google Patents

Description

The present invention relates to a discharge member for foamable contents, and further relates to an aerosol product provided with the discharge member.

Patent Documents 1 and 2 have a plurality of molding holes and a molding surface in which the molding holes are opened, and a plurality of molding pieces molded through the plurality of molding holes are combined on the molding surface to form a molded article. A modeling head is disclosed that includes a modeling feature to form.

JP, 2016-26962, A JP, 2016-10919, A

However, in these molding heads, since a diffusion chamber that supplies the contents to the molding hole is provided between the mounting portion mounted on the stem of the aerosol valve and the molding portion, most of the contents are in the diffusion chamber. There is a problem that it remains in.

Therefore, the present invention provides a discharge member for a foamable content and an aerosol product capable of forming a foam body having a desired shape and suppressing the content from remaining in the discharge member. It is an issue.

The discharge member for foamable contents of the present invention comprises a main body part attached to an aerosol valve, a molding part having a molding passage for molding the contents supplied from the main body part into a predetermined shape, and the molding passage. It is characterized in that it is provided with a discharge part having a large number of fine passages which is covered from the outside, and the molding part and the discharge part are expanded by the pressure of the contents supplied from the main body part.

It is preferable that the molding unit and the discharge unit are integrated.

It is preferable that a diffusion chamber is provided between the main body portion and the molding portion, and the molding portion constitutes a part of the diffusion chamber.

Further, it is preferable to have a concave groove facing the forming passage and serving as a supply passage for the contents.

Moreover, it is preferable that the discharge part covers the molding part.

The aerosol product of the present invention comprises the discharge member according to any one of the above, an aerosol container equipped with the discharge member, and a foamable content that fills the aerosol container and forms a foam after discharge. It has a feature.

In the discharge member of the present invention, the molding passage of the molding portion is covered with the discharge portion having a large number of fine passages, and the molding portion and the discharge portion expand due to the pressure of the content supplied from the main body portion. The contents supplied from the main body are not expelled from the molding passage to the outside, the pressure of the contents swells the molding part and the discharging part, and the contents are foamed and temporarily stored. It can be placed and the foamed contents can be slowly fed into the molding passage to be molded and passed through the discharge part to form a foam with a predetermined shape on its upper surface. When the discharging operation is stopped and the expanded contents are discharged from the molding section, the discharging section and the molding section contract, so that the contents can be prevented from remaining in the discharging member. Furthermore, since the foam body that is pushed out at the time of contraction pushes up the foam body on the discharge portion, it is possible to form a more three-dimensional foam body.

Further, if the molding section and the discharge section are integrated, only one of the molding section and the discharge section is deformed, and a gap is created between the molding section and the discharge section, and the mixture is discharged from the molding passage. It is possible to prevent the contents (foam) from entering the gap, and to pass the discharge part while maintaining the shape molded in the molding passage to form a foam with a predetermined shape on the upper surface. You can

If the molded part having flexibility constitutes a part of the diffusion chamber, the molded part expands at the time of discharge to increase the volume of the diffusion chamber, so that the contents easily foam, and the foamed contents (Foam bodies) can be supplied to the molding passages to facilitate molding. After ejection, the volume of the diffusion chamber is reduced as the molding part shrinks, and residual contents can be suppressed.In addition, when the foam on the ejection part is picked up with your fingertips, the molding part can be deformed toward the diffusion chamber. In this case, it is possible to further prevent the contents from remaining in the diffusion chamber.

If the groove is provided so as to face the forming passage and serves as a supply passage for the contents, the contents can be easily supplied to the forming passage. Therefore, it is discharged from the molding passage near the center first, and the discharge from the molding passage on the outer peripheral side is delayed, and a large amount of content is discharged from the molding passage near the center, and the discharge amount from the molding passage on the outer peripheral side. It is possible to suppress unevenness in discharge time and quantity, such as a decrease in discharge amount, and it is possible to obtain a foam having a desired shape even when the discharge area is large.

If the discharge part covers the molding part, the shape of the molding passage cannot be visually inspected from the outside, so it is not possible to know what shape the foam will be discharged until it is discharged, and it will be fun when discharging. Increase.

Since the aerosol product of the present invention includes the discharge member described in any one of the above, it is easy to form a foam having a predetermined shape.

1a is a sectional view showing a state in which an embodiment of the discharging member of the present invention is attached to an aerosol container, and FIG. 1b is a sectional view showing a discharging state of contents. It is a top view which shows the shape of the shaping|molding passage of a shaping|molding part. FIG. 3a is a cross-sectional view showing a state in which a discharge member according to another embodiment of the present invention is attached to an aerosol container, and FIG. 3b is a cross-sectional view showing a discharge state of contents. FIG. 4a is a sectional view showing a state in which another embodiment of the discharge member of the present invention is attached to an aerosol container, FIG. 4b is a plan view of a molding portion, and FIG. 4c is a plan view of a main body portion. FIG. 5a is a sectional view showing a state in which a further embodiment of the discharge member of the present invention is attached to an aerosol container, and FIG. 5b is a plan view of a molding part.

The discharge member 10 of the present invention constitutes an aerosol product by being attached to the aerosol container 20 filled with the foamable content. Further, in the aerosol product of the present invention, a foam body having a desired shape can be obtained by discharging the foamable content from the discharge member 10 by a discharge operation.
Hereinafter, a mechanism for obtaining each constituent member and a foam body having a desired shape will be described in detail.

As shown in FIG. 1, the discharge member 10 includes a main body portion 11 attached to the aerosol valve 21, a base portion 12 attached to the main body portion 11, and a content attached to the base portion 12 and supplied from the main body portion 11. The molding unit 13 has a predetermined shape, the ejection unit 14 covers the outer surface of the molding unit 13, and the fixing member 15 fixes the molding unit 13 and the ejection unit 14 to the base 12.

The main body portion 11 is a portion that serves as a base for attaching the molding portion 13 and the discharge portion 14 to the aerosol container 20, and a cylindrical outer portion for mounting (outer fitting) the stem 21a of the aerosol valve 21 at the lower center portion thereof. A fitting portion 11a is provided. A cylindrical skirt 11b is provided on the outer periphery of the outer fitting portion 11a.
Further, the main body portion 11 is also used as a push button when ejecting the content, and has a recess 11c on one upper side (on the right side in the drawing) that serves as a fingerhold. On the opposite side (left side in the drawing) of the depression 11c, a cylindrical inner fitting portion 11d for mounting (inner fitting) a connecting cylinder 12a of the base 12 described later is provided. The inner fitting portion 11d communicates with the outer fitting portion 11a (internal passage 11e). The outer periphery of the inner fitting portion 11d is recessed inward, and a part of the base portion 12 can be inserted.

The base portion 12 is a connecting tool for attaching the molding portion 13 and the discharge portion 14 to the main body portion 11.
As described above, the cylindrical connecting tube 12a is provided at the center of the base 12. A flange portion 12b extending radially outward is provided at the upper end of the connecting tube 12a. The flange 12b has an outer edge curved toward the main body. The outer surface of the flange 12b is smooth within a certain range from the connecting tube 12a, but a plurality of annular ridges that are concentric with the connecting tube 12a are provided near the outer edge. The innermost raised portion (first raised portion) 12c is for attaching the molding portion 13 in a state of being floated from the outer surface of the collar portion 12b, that is, a connecting tube having a diameter smaller than that of the molding portion 13 (supply of contents). This is for forming a diffusion chamber D for diffusing the content discharged from the opening of the passage 12a over the entire surface of the molding portion 13. The ridges (second ridges, third ridges) 12d and 12e outside the first ridge 12c are used when fixing the fixing member 15 to the base 12. It should be noted that all of these raised portions are formed in a continuous annular shape, but they do not necessarily have to be continuous and may be in a partially divided form.

The molding unit 13 is for molding the content supplied from the main body into a predetermined shape.
The molding portion 13 is made of polyethylene terephthalate, polyethylene, polypropylene, polyamide, polyvinyl chloride, elastomer, or the like, and is made into a film-like synthetic resin sheet or a flat sheet-like synthetic resin plate, silicone rubber, urethane rubber, A rubber plate molded in a flat plate shape using synthetic rubber, iron-bonded cloth or paper, polyurethane, polyolefin such as polyethylene or polypropylene, polyvinyl chloride, polyamide, polyacetal, polyester, polystyrene, or other synthetic resin foamed. It is made of a material such as a hard sponge having flexibility and liquid impermeability or liquid permeability lower than that of the discharge part 14, and the molding passage 13a is formed so as to vertically penetrate the molding part 13. As the planar shape of the molding passage 13a, for example, as shown in FIGS. 2a to 2c, a heart shape, a star shape, a deformed face, or, as shown in FIG. 5b, an arc-shaped slit-shaped hole is spirally formed. However, the present invention is not limited to this, and various shapes such as plum blossoms and letters may be adopted. The forming passage 13a may be formed when the forming portion 13 is formed, but may be formed by cutting out into a line segment (straight line, curved line) or a dot with a laser or a blade, or forming the forming passage 13a. The portion to be heated may be melted by heat. Further, the cross-sectional shape of the molding portion 13 may be laminated together with the molding passage 13a using ABS resin, photo-curable acrylic resin, or the like, and may be irradiated with ultraviolet rays to be cured.

The discharge part 14 is for weakening the momentum of the foamed contents supplied from the molding passage 13a of the molding part 13 and strengthening the foam to improve the shape retention.
The discharge unit 14 is, for example, a sponge-like soft porous material formed by foaming a synthetic resin such as polyolefin such as polyurethane, polyethylene, or polypropylene into a sheet or cloth, and fine air bubbles inside each other. It has flexibility and liquid permeability (liquid permeability higher than that of the molding portion 13) in a state in which a large number of fine passages are provided by communicating or by communicating gaps between fibers. In addition, the surface is rough.

The discharge part 14 and the molding part 13 are integrated by adhering the surfaces facing each other and adhering them by an adhesive, welding, ironing or the like. When they are integrated, they expand together due to the pressure of the contents, which makes it difficult to form a gap between them. Therefore, the content (foam body) molded in a desired shape by the molding passage 13a can be directly sent to the discharge unit 14 with the shape thereof and passed through the discharge unit 14, and a predetermined amount is provided on the upper surface of the discharge unit 14. It is possible to form a foam in the shape of.

As described above, the fixing member 15 is for fixing the molding portion 13 and the discharge portion 14 to the base portion 12. The fixing member 15 has a ring shape so that the discharge portion 14 can be exposed to the outside through the central opening 15a. Further, the fixing member 15 is provided with a first concave portion 15b and a second concave portion 15c corresponding to the second and third raised portions 12d and 12e of the base portion 12, respectively. Further, between the first recess 15b and the second recess 15c, there is provided a press-fitting projection 15d that is press-fitted between the second raised portion 12d and the third raised portion 12e.

The molding portion 13 and the discharging portion 14 are attached to the base portion 12 so that the discharging portion 14 is on the outer side and the outer edges of the molding portion 13 and the discharging portion 14 are respectively formed by the first raised portion 12c and the second raised portion 12d. It is performed by covering the molding portion 13 and the discharge portion 14 on the first raised portion 12c of the base portion 12 so that the fixing member 15 is fitted into the base portion 12.
By such attachment, the molding portion 13 and the discharging portion 14 are fixed in a state of being stretched on the first protrusion 12c formed in an annular shape, and the molding portion 13 and the discharging portion are discharged by the pressure of the contents. The parts 14 easily expand at the same time, and it becomes difficult to form a space between them. Further, it is possible to prevent the molding portion 13 from slackening and the volume of the diffusion chamber D formed between the inner surface of the molding portion 13 and the outer surface of the collar portion 12b becoming unnecessarily large.

The aerosol container 20 is formed by attaching an aerosol valve 21 to a bottomed cylindrical container body, and is filled with a foamable content composed of a stock solution and a liquefied gas to form an aerosol product.

Examples of the foamable contents include a stock solution containing a surfactant and a liquefied gas. The surfactant is used for the purpose of forming a foam by vaporizing the liquefied gas when the foamable content is discharged.

Examples of the surfactant include nonionic surfactants, amphoteric surfactants, silicone surfactants, amino acid surfactants and the like.
Examples of the nonionic surfactant include polyoxyethylene sorbitan fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, and polyoxyethylene fatty acid ester. Examples thereof include oxyethylene hydrogenated castor oil and polyoxyethylene alkyl ether fatty acid ester. Examples of the amphoteric surfactant include lauric acid amidopropyl betaine and the like, and examples of the silicone-based surfactant include polyoxyethylene/methylpolysiloxane copolymer, polyoxypropylene/methylpolysiloxane copolymer, poly(oxy Examples thereof include ethylene/oxypropylene)/methyl polysiloxane copolymer, and examples of the amino acid type surfactant include lauroyl methylalanine sodium.

The solvent contains a surfactant and an active ingredient, and foams with the surfactant and the liquefied gas to form a liquid film of a foam. Examples of the solvent include aqueous solvents such as water and alcohol, and oily solvents such as ester oil and fats and oils. Examples of water include purified water and ion-exchanged water, and examples of alcohol include ethanol and isopropanol. Examples of the ester oil include tri(caprylic acid/capric acid) glyceryl and the like, and examples of the oil and fat include olive oil and jojoba oil.

The active ingredient is contained in the foam body formed on the discharge part, and exerts the effect by evaporating from the foam body, the foam body exerting the effect by being applied to the human body such as skin and hair, the object Those which are applied to and exert an effect are listed.
Examples of the active ingredient include aromatic components such as fragrances, deodorant components, bactericidal components, cleaning components, moisturizing components, insecticidal components and pest repellent components.

In the stock solution, higher fatty acids such as myristic acid, for the purpose of adjusting the elasticity of the foam, the moldability when passing through the molding passage, and the shape retention of the foam formed on the discharge part, Higher alcohols such as cetanol, water-soluble polymers such as gelatin, hydroxyethyl cellulose and hydroxypropyl starch phosphate may be added.

The liquefied gas is a liquid having a vapor pressure in the aerosol container, and is contained in the contents supplied from the main body part when the aerosol valve is opened, expands the molding part and the discharging part, and forms the molding passage and the discharging part. It is passed to form a foam having a predetermined shape.
Examples of the liquefied gas include propane, normal butane, isobutane, and liquefied petroleum gas which is a mixture thereof, dimethyl ether, hydrofluoroolefin, and a mixture thereof.

The foamable content is such that the stock solution is 60 to 98% by mass, the liquefied gas is 2 to 40% by mass, further the stock solution is 70 to 97% by mass, and the liquefied gas is 3 to 30% by mass. preferable. If the liquefied gas is less than 2% by mass, it will be difficult to pass through the discharge part, and if the liquefied gas is more than 40% by mass, the density of the foam body formed will be low and the shape of the bubble will collapse when passing through the discharge part. It will be easier. In addition, the foam formed on the discharge part is further foamed, and the shape thereof is likely to collapse. In addition, adjusting the deformation (expansion) state of the molding part and the discharging part at the time of discharging, adjusting the speed of passing through the molding passage and the discharging part to adjust the height (three-dimensional) and strength of the foam, etc. A compressed gas such as carbon dioxide gas, nitrous oxide or nitrogen may be blended for the purpose.

In particular, a foam having a firm foam quality is preferable because it is easily molded in the molding passage of the molding section, and is less likely to collapse when passing through the discharge section, and a foam having a desired shape is easily obtained. Examples of the foamable contents having such a foam quality include those comprising an anionic surfactant, a cationic component, an aqueous stock solution containing a polyhydric alcohol and water, a liquefied gas, and a compressed gas. ..

Examples of the anionic surfactant include an alkyl phosphate such as potassium lauryl phosphate and sodium lauryl phosphate, a polyoxyethylene alkyl ether phosphate such as POE sodium lauryl ether phosphate, ammonium lauryl sulfate and potassium lauryl sulfate. Alkylsulfates, POE sodium lauryl ether sulfate, polyoxyethylene alkyl ether sulfates such as POE lauryl ether sulfate triethanolamine, alkyl ether carboxylates such as POE potassium lauryl ether acetate, sulfonates such as sodium lauryl sulfoacetate, etc. The content thereof is preferably 0.1 to 20 mass% in the aqueous stock solution, and more preferably 0.5 to 15 mass %.

Examples of the cationic component include hydroxyethyl cellulose dimethyldiallylammonium chloride (polyquaternium 4), dimethyldiacrylic ammonium chloride/acrylamide copolymer (polyoctanium 7), and -O-[2-hydroxy-3-(trimethyl chloride) chloride. Ammonio)propyl]hydroxyethyl cellulose (polyquaternium 10), dimethyldiallylammonium chloride/acrylic acid copolymer (polyquaternium 22), -O-[2-hydroxy-3-(lauryldimethylammonio)propyl]hydroxyethyl cellulose chloride (poly) Octanium 24), acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer (polyquaternium 39), 2-methacryloyloxyethylphosphorylcholine/butyl methacrylate copolymer liquid (polyquaternium 51), N,N-dimethylaminoethyl diethyl methacrylate Sulfate/N,N-dimethylacrylamide/polyethylene glycol dimethacrylate (polyquaternium 52), 2-methacryloyloxyethylphosphorylcholine/stearyl methacrylate copolymer (polyquaternium 61), methacryloyloxyethylenephosphorylcholine, butyl methacrylate and sodium methacrylate (Polyquaternium 65) and the like, and the content thereof is preferably 0.1 to 15 mass% in the aqueous stock solution, and more preferably 0.5 to 10 mass %.

Examples of the polyhydric alcohol include 2- to 4-hydric alcohols and/or monosaccharides.
Examples of the dihydric to tetrahydric alcohol include propylene glycol, 1,3-butylene glycol, hexylene glycol, glycerin, dipropylene glycol and diglycerin, and the content thereof is 1 to 30 mass% in the aqueous stock solution. It is preferable that the content is 3 to 25% by mass.
Examples of monosaccharides include erythritol, maltitol, sorbitol, xylitol, etc., and the content thereof is preferably 1 to 30% by mass in the aqueous stock solution, and more preferably 3 to 25% by mass.

To use the aerosol product configured as described above, the finger grip 11c of the main body 11 is pushed down. Then, the content discharged from the stem 21a passes through the internal passage 11e of the main body portion 11 and the connecting cylinder 12a of the base portion 12, and is formed between the inner surface of the molding portion 13 and the outer surface of the collar portion 12b. Supplied to D. The contents sequentially flow into the diffusion chamber D, but the flow passage area of the fine passage of the discharge portion 14 is small with respect to the discharge amount, and further, there is flow passage resistance, so that the contents are discharged to the outside with vigor. Most of them temporarily stay in the diffusion chamber D and fill the diffusion chamber D. The remaining contents gradually foam in the diffusion chamber D due to the vaporization of the liquefied gas. Therefore, the flexible molding part 13 and the discharging part 14 are deformed so as to project outward, and the volume of the diffusion chamber D increases (see FIG. 1b). Then, the content that has spread throughout the diffusion chamber D is supplied to the molding passage 13a to be molded, passes through the discharge portion 14, and oozes from the surface thereof to form a foam. Therefore, regardless of the size and shape of the opening of the connection cylinder 12a opening to the diffusion chamber D, the foam X molded along the shape of the molding passage 13a is discharged. Further, since the ejection force is weakened by the ejection portion 14, the ejected foam does not scatter outward, and remains on the surface of the ejection portion 14 while maintaining the shape molded by the molding passage 13a. .. In particular, since the surface of the ejection unit 14 is rough, the shape can be maintained for a relatively long period of time. In addition, since the molding portion and the discharge portion are deformed so as to bulge, the diffusion chamber D can secure a sufficient capacity for the contents to foam, and the foamed state is sent to the molding unit 13. The shape of the molding passage 13a is easily formed, and the foam formed in the discharge part 14 is suppressed in additional foaming, and the shape of the foam X is easily maintained. It should be noted that the foam molded in one molding passage 13a may be formed on the surface of the discharge part 14 in the same shape as it is, or the foam molded in a plurality of molding passages 13a may be combined (attached to each other). It may be formed on the surface of the discharge part.

The amount of bubbles to be discharged is preferably changed appropriately according to the shape of the molding passage 13a. For example, as shown in FIGS. 2a to 2c, when the planar shape itself is already a desired shape, the ejection amount may be small. As shown in FIG. 5b, in the case where a desired shape is obtained only by three-dimensional bubbles, it is preferable to increase the discharge amount in order to increase the height of the bubbles. In the forming part 62 shown in FIG. 5b, the foam discharged from the individual forming passages 62a is three-dimensionally formed so as to rise on the forming passages 62a, so that a double-flowered rose is imitated. A transparent foam is formed on the ejection member 63.

When the pushing down of the main body 11 is stopped, the supply of the contents from the aerosol container 20 is stopped. Then, the pressure in the diffusion chamber D also drops, and the molding section 13 and the discharge section 14 naturally return to their original shapes. Therefore, the amount of contents remaining in the diffusion chamber D is small. For example, during non-ejection, the height of the diffusion chamber D (the distance from the outer surface of the collar portion 12b to the inner surface of the molding portion 13) is set to a width necessary to diffuse the content throughout the molding passage 13a (for example, 0). .5 to 5 mm), the residual content can be greatly reduced. As described above, since the molding portion 13 and the discharging portion 14 are deformed so as to expand during discharging, even if the height of the diffusion chamber D is reduced in this way, the contents can be sufficiently foamed during discharging. Capacity will be secured.
Further, if the foam X formed on the surface of the discharge part 14 is scooped with a finger or the like, the molding part 13 and the discharge part 14 are deformed so as to be recessed inward (toward the base part 12). The residual amount of contents in the chamber D can be further reduced.
It should be noted that the shrinkage (pushing) of the molding unit 13 and the discharge unit 14 pushes out the contents in the diffusion chamber D to some extent, so that the foam on the discharge unit 14 is pushed up. It is also possible to form a three-dimensional foam.

Next, the other ejection member 30 will be described. The discharge member 30 shown in FIG. 3 includes a main body portion 31 mounted on the aerosol valve 21, a molding portion 32 mounted on the main body portion 31 and molding the content supplied from the main body portion 31 into a predetermined shape. The discharging unit 33 covers the outer surface of the unit 32, and the fixing member 34 that fixes the molding unit 32 and the discharging unit 33 to the main body unit 31. That is, the base is omitted. In addition, the present aerosol product includes a cylindrical shoulder cover 35 that covers the outside of the main body 31 at the upper end of the aerosol container 20.

The main body 31 includes a cylindrical outer fitting portion 31a for mounting on the stem 21a, a flange portion 31b extending radially outward from an upper end of the outer fitting portion 31a, and a skirt 31c extending downward from an outer peripheral lower end of the flange portion 31b. It has and. The inner passage 31d in the outer fitting portion 31a is open to the surface of the collar portion 31b. Further, unlike the above embodiment, the flange portion 31b has a smooth outer surface and does not have a raised portion. The skirt 31c is provided with a stepped portion 31e that restricts excessive intrusion of the fixing member 34 fitted onto the main body portion 31 to the lower side.

The molding portion 32 has a thickness as compared with the sheet-shaped embodiment described above. The thickness is larger than the width of the molding passage 32a formed in a slit shape or a dot shape, for example, 0.5 to 3 mm. Further, the molding portion 32 has already bulged upward while being attached to the main body portion 31. The material, flexibility, and liquid impermeability are the same as in the above embodiment.

The outer peripheral end of the discharge part 33 is thicker than the other parts, in other words, the recess 33a is formed except for the outer peripheral end. Then, the molding portion 32 is fitted in the recess 33a. The material, flexibility, and liquid permeability are the same as in the above embodiment.

The fixing member 34 is composed of a disc portion 34a having a large central portion for exposing the discharge portion 33 to the outside, and a cylindrical portion 34b extending downward from the outer peripheral end portion. Then, the cylindrical portion 34b is fitted onto the main body portion 31 to be fixed to the main body portion 31.

By the way, the molding part 32 and the discharging part 33 have already bulged outward in a state of being attached to the main body part 31, and between the outer surface of the collar part 31b of the main body part 31 and the inner surface of the molding part 32. Has a dome-shaped diffusion chamber D formed therein. As a method of bulging the molding portion 32 and the discharging portion 33, the molding portion 32 and the discharging portion 33 may be molded in a dome shape in advance, or the outer diameter of the discharging portion 33 may be the cylindrical portion 34b of the fixing member 34. It may be formed to have a larger diameter than the inner diameter of the discharge portion 33, and the discharge portion 33 may be expanded by being pressed into the cylindrical portion 34b so that the outer diameter of the discharge portion 33 is reduced.

The discharge member 30 having the above-described configuration carries out the discharge operation by holding the cylindrical portion 34b and pushing it downward. The content discharged from the stem 21a by the discharging operation flows into the diffusion chamber D through the internal passage (supply passage) 31d of the main body 31. Then, as in the case of the above-described embodiment, the content has a small flow passage area of the fine passage of the discharge portion 33 with respect to the discharge amount and further has a flow passage resistance, so that the content is not discharged to the outside with vigor. However, most of them temporarily stay in the diffusion chamber D and fill the diffusion chamber D. The retained contents gradually foam in the diffusion chamber D due to vaporization of the liquefied gas. Therefore, the molding part 32 and the discharge part 33 are further bulged outward. Then, the content that has spread all over the diffusion chamber D is supplied to the molding passage 32a to be molded, passes through the discharge portion 33, and oozes from the surface thereof to form a foam body. At this time, the molding portion 32 is provided with a certain thickness. That is, since the length of the molding passage 32a in the discharge direction is long, the discharge direction of the foam is stable, and the shape of the discharged foam is less likely to collapse. Therefore, even if the shape of the molding passage 32a is composed of line segments such as characters, it is possible to mold the foam X with an accuracy that can be clearly recognized.

When the supply of the contents from the aerosol container 20 is stopped, the pressure in the diffusion chamber D also drops, and the molding section 32 and the discharging section 33 return to their original shapes. The discharged foam X is removed from the surface of the discharge part 33 by scooping with a finger, for example. In this case, if the bulging discharge part 33 is pushed inward, the amount of contents remaining in the diffusion chamber D can be reduced. In particular, in the case of the main discharge member 30, since the outer surface of the collar portion 31b is not provided with a raised portion and is smooth, if the discharge portion 33 is pushed downward, the inner surface of the molding portion 32 and the outer portion of the collar portion 31b are not pressed. The surface can be brought into contact with each other easily, and the residual amount can be further reduced.

Next, the other ejection member 40 will be described. The discharge member 40 shown in FIG. 4 has a larger discharge area than the discharge member 30 shown in FIG. Specifically, the flange portion 31b of the main body portion 41, the molding portion 42, and the discharge portion 43 have large diameters. Further, the shoulder cover 45 that covers the main body portion 41 also has a large diameter, and covers the shoulder portion of the aerosol container 50 that also has a large diameter. The same applies to the materials.

Further, in the discharge members 10 and 30, the shape of the molding passages 13 a and 32 a in plan view is formed by a combination of holes having a desired shape and slit-shaped holes tracing the desired shape. Then, the molding passage 42a is an assembly of small dots (diameter: 0.3 to 2 mm), and a large number of these holes are arranged along a desired shape (for example, alphabets are represented by dots as shown in FIG. 4b). It consists of: In the case of such a molding passage 42a, the foams are separated from each other immediately after the ejection, but when a certain amount is ejected, the foams stick to each other on the ejection portion 43 to obtain a desired shape.

Further, the main discharge member 40 is also different from the above discharge members 10 and 30 in that a concave groove 41a is provided on the outer surface of the flange portion 31b of the main body portion 41. As shown in FIG. 4c, the recessed groove 41a is in the shape of a strip that is long in the left-right direction centering on the opening of the internal passage (supply passage) 31d and faces most of the molding passage 42a formed in the left-right direction. doing. When the groove 41a is provided in this manner, it becomes easy to supply the content supplied from the internal passage 31d to the molding passage 42a, as shown by the arrow. In other words, the concave groove 41a extends the supply path. Therefore, the molding passage 42a near the center is discharged first, and the discharging from the molding passage 42a on the outer peripheral side is delayed, and a large amount of content is discharged from the molding passage 42a near the center, and the molding passage 42a on the outer peripheral side is discharged. It is possible to suppress the temporal and quantitative unevenness of the ejection such that the ejection amount from the ink is reduced. Therefore, even when the discharge area is large (when the molding passages 42a are separated from each other), a foam having a desired shape can be obtained.

Further, since the concave groove 41a is provided along the forming direction of the molding passage 42a, that is, provided only in a necessary portion, it is possible to suppress an increase in the residual amount of the content. The groove 41a also functions as the diffusion chamber D. In other words, since the groove 41a forms a part of the diffusion chamber D, the height (groove depth) of the groove 41a is taken into consideration. If the height is determined, the capacity of the portion where the concave groove 41a is not provided can be reduced, and the residual amount can be suppressed as a whole.

Other configurations are similar to those of the ejection member 30, and therefore, the same reference numerals are given and detailed description thereof is omitted.

Next, still another ejection member 60 will be described. The discharge member 60 shown in FIG. 5 is characterized in that the diffusion chamber D is not provided. Specifically, as shown in FIG. 5a, no space is provided between the outer surface of the collar portion 31b and the inner surface of the molding portion 62, and they are in contact with each other.

In the discharge member 60 having the above-described configuration, the content supplied from the internal passage 31d is deformed by the pressure so as to bulge the molding portion 62 and the discharging portion 63 toward the outside, thereby forming the molding portion 62 and the collar portion. A space corresponding to the diffusion chamber D is formed between the space 31b and 31b. Therefore, even if the diffusion chamber D is not provided in advance, a foam having a desired shape can be discharged from each of the plurality of molding passages 62a provided from the vicinity of the center to the vicinity of the outer edge of the molding portion 62. In particular, if a 0.3 mm thick iron adhesive cloth is used as the material of the molding portion 62 and a 1 mm thick cloth is used as the material of the discharging portion 63, the two are pasted together, and the molding passage 62a passes through the discharging portion 63 to the outside. The shape of the foam that is ejected to is difficult to collapse, and the foam rises cleanly. However, the thickness is not limited to this, and may be appropriately changed within a range of 0.1 to 2 mm in the molding section 62 and 0.1 to 5 mm in the ejection section 63, for example. Further, the molding part 62 shown in FIG. 5b is for obtaining a foam imitating a double-flowered rose as described above, but it is close to the center of the molding part 62 by not providing the diffusion chamber D in advance. The higher the foam rises, the more the double-flowered rose-like foam can be obtained.

When the molding portion 62 and the discharging portion 63 are formed of cloth, the restoring force (contractibility) is weak and it may be difficult to return to the original shape after discharging. In such a case, the discharge portion 63 is pushed from above to restore the original shape. At this time, the content remaining between the collar portion 31b and the molding portion 62 is discharged to the discharge portion 63 side, so that the foam provided on the discharge portion 63 is lifted and a more three-dimensional bubble is formed. The body is obtained.

The other configurations are similar to those of the ejection member 40, and therefore, the same reference numerals are given and detailed description thereof is omitted.

The representative embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, in the above-described embodiment, the entire molding portion is covered with the discharging portion, but only the opening of the molding passage in the molding portion may be covered with the discharging portion. However, when the entire molding portion is covered with the opaque ejection portion having no translucency, it is not possible to know in advance what shape the ejected bubbles will be, which increases the enjoyment of ejection. When it is transparent or translucent, the shape to be ejected is known in advance, which is convenient when there are a plurality of aerosol products having different shapes of the molding passages.

Further, it is also possible to use a discharge part having liquid permeability under pressure that does not discharge until a predetermined pressure is reached. In this case, the diffusion chamber D can be easily formed. Further, the planar shape of the concave groove can be appropriately changed according to the shape of the molding passage. Further, the concave groove may be provided in the molding portion.

10 Discharge member 11 Main body 11a Outer fitting portion 11b Skirt 11c Recess (finger rest)
11d Internal fitting portion 11e Internal passage 12 Base portion 12a Connection tube 12b Collar portion 12c First raised portion 12d Second raised portion 12e Third raised portion 13 Molded portion 13a Molded passage 14 Discharge portion 15 Fixing member 15a Opening 15b First recessed portion 15c 2 concave portion 15d press-fitting projection 20 aerosol container 21 aerosol valve 21a stem 30 discharge member 31 main body portion 31a outer fitting portion 31b collar portion 31c skirt 31d internal passage 31e step portion 32 molding portion 32a molding passage 33 discharge portion 33a recess portion 34 fixing member 34a circle Plate portion 34b Cylindrical portion 35 Shoulder cover 40 Discharging member 41 Main body portion 41a Recessed groove 42 Molding portion 42a Molding passage 43 Discharging portion 45 Shoulder cover 50 Aerosol container 60 Discharging member 62 Molding portion 62a Molding passage 63 Discharging portion D Diffusion chamber X Foam body

Claims (6)

A body part attached to the aerosol valve,
A molding section having a molding passage for molding the content supplied from the main body into a predetermined shape;
A discharge unit having a large number of fine passages, which covers the molding passage from the outside,
A discharge member for a foamable content, wherein the molding section and the discharge section are flexible and expand together with the pressure of the content supplied from the main body section. The molding unit and the discharge unit are integrated,
The discharge member according to claim 1. A diffusion chamber is provided between the main body portion and the molding portion,
The molding part constitutes a part of the diffusion chamber,
The discharge member according to claim 1 or 2. Having a concave groove facing the forming passage and serving as a supply passage for the contents,
The discharge member according to claim 1. The discharge part covers the molding part,
The discharge member according to claim 1. An aerosol product comprising the discharge member according to any one of claims 1 to 5, an aerosol container equipped with the discharge member, and a foamable content that fills the aerosol container and forms a foam after discharge.

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