JP6994883B2 - Effervescent content discharge nozzles and aerosol products - Google Patents

Description

The present invention relates to a discharge nozzle for discharging effervescent contents and an aerosol product using the same. More specifically, the present invention relates to a discharge nozzle for forming a foamed discharge having a three-dimensional decorative property, and an aerosol product using the discharge nozzle.

Patent Document 1 has a plurality of molding holes and a molding surface through which the molding holes are opened, and a plurality of molding pieces formed through the plurality of molding holes are combined on the molding surface to form a shaped object. The modeling head is disclosed. In Patent Document 1, it is exemplified that a double-flowered flower (rose) is modeled by bubbles discharged from a modeling head.

Japanese Unexamined Patent Publication No. 2016-10919

The modeling head of Patent Document 1 focuses on the shape of bubbles after ejection, and the movement of bubbles at the time of ejection is monotonous.

Therefore, an object of the present invention is to provide a discharge nozzle capable of giving motion to bubbles at the time of discharge and an aerosol product using the same.

The discharge nozzle of the foamable content of the present invention is a discharge nozzle attached to the aerosol container 11 filled with the foamable content, and has an internal passage 4 extending in the axial direction of the discharge nozzle and the tip of the internal passage 4. A foam having a closing portion 6 and an opening 5 opening on the side of the internal passage 4 is provided, and an opening inner peripheral surface 5a constituting the opening 5 is discharged from the internal passage 4 to the outside through the opening 5. It is characterized by having a pair of side surfaces 5b and 5c for controlling the discharge direction of the sex content.

Further, at least one side surface 5b (5c) draws an arc from the internal passage 4 toward the outside, or a pair of side surfaces 5b and 5c each draws an arc from the internal passage 4 toward the outside. It is preferable that each arc is curved in the same direction. Of the pair of side surfaces, it is preferable that the curvature of the side surface 5c located on the outer peripheral side of the curve is larger than the curvature of the side surface 5b located on the inner peripheral side of the curve.

The distance between the side surfaces 5b and 5c may be widened outward. Further, the opening 5 may be opened with an elevation angle. Further, the opening 5 may be twisted around the axis of the discharge nozzle.

The aerosol product 10 of the present invention comprises an aerosol container 11, an effervescent content filled in the aerosol container 11, and any of the above-mentioned ejection nozzles provided in the aerosol container 11.

In the discharge nozzle of the present invention, since the inner peripheral surface of the opening constituting the opening has a pair of side surfaces, the effervescent content derived from the aerosol container and / or the effervescent content after foaming (hereinafter referred to as “foaming content”). The bubbles (simply referred to as bubbles) flow toward the opening that opens on the side of the internal passage by the closure that closes the tip of the internal passage, and are discharged along a pair of side surfaces of the inner peripheral surface of the opening of the opening. , Any movement can be given to the foam at the time of ejection.

Further, if at least one side surface forms an arc from the internal passage toward the outside, the bubbles are discharged while swirling. Further, since the length (control distance) in which the direction of the bubbles can be controlled is longer than in the case where the side surface is straight, it is easy to control the ejection direction of the bubbles. Further, when the control distance is not changed, the wall thickness of the discharge nozzle can be reduced, and the discharge nozzle can be miniaturized. Each of the pair of side surfaces draws an arc from the internal passage to the outside, and if each arc is curved in the same direction, the bubbles can be discharged while swirling more reliably. Of the pair of side surfaces, if the curvature of the side surface located on the outer peripheral side of the curve is larger than the curvature of the side surface located on the inner peripheral side of the curve, the foam is swirled so as to wind around the outer peripheral surface of the discharge nozzle. It can be discharged while the foam is discharged, and it is difficult for bubbles to flow down from the discharge nozzle.

If the distance between the sides is widened outward, the bubbles can be discharged smoothly. If the opening is opened with an elevation angle, the bubbles are ejected upward, so that the lower part of the preceding bubble and the upper part of the succeeding bubble partially overlap each other to form a soft serve ice cream-like appearance. If the opening is twisted around the axis of the discharge nozzle, it becomes easier to swirl the foam.

1a is a front view showing an aerosol product of the present invention, FIG. 1b is a plan view of a nozzle body, and FIG. 1c is a sectional view taken along the line III-III of FIG. 1b. 2a is a front view, FIG. 2b is a plan view, and FIG. 2c is a sectional view taken along the line IV-IV of FIG. 2b, showing the nozzle body of the discharge nozzle according to a different embodiment of the present invention. 3a is a front view, FIG. 3b is a plan view, and FIG. 3c is a sectional view taken along the line VV of FIG. 3b, showing the nozzle body of the discharge nozzle according to a further different embodiment of the present invention. FIG. 4a is a perspective view schematically showing an arc (curvature around the axis) from the internal passage to the outside, and FIG. 4b is a perspective view schematically showing a twist around the axis. 5a is a front view, FIG. 5b is a plan view, and FIG. 5c is a sectional view taken along the line VI-VI of FIG. 5b, showing the nozzle body of the discharge nozzle according to another embodiment of the present invention. FIG. 6a is a front view and FIG. 6b is a plan view showing the nozzle body of the discharge nozzle according to still another embodiment of the present invention.

The aerosol product 10 of FIG. 1a includes an aerosol container 11, an effervescent content filled in the aerosol container 11, and a discharge nozzle 1 mounted on the aerosol container 11.

The aerosol container 11 is a conventionally known one including, for example, a container body 12 and an aerosol valve 13 attached to an opening of the container body 12. However, as the aerosol container 11, other conventionally known forms may be used. The mounting cup 13a of the aerosol valve 13 is fixed so as to cover the upper end of the container body 12. Further, a tubular cover member 14 surrounding the upper end of the aerosol container 11 is attached to the annular convex portion 11a of the aerosol container 11 formed by the mounting cup 13a and the container body 12.

The ejection nozzle 1 ejects an effervescent content and / or an effervescent content (hereinafter, simply referred to as foam) from the vicinity of the tip thereof, forms it into a desired shape, and holds it. The discharge nozzle 1 includes an operation member 2 and a nozzle body 3.

The lower end of the operating member 2 is mounted on the stem 13b of the aerosol valve 13, and the operating member 2 extends horizontally from an intermediate position in the axial direction between the cylindrical portion 2a on which the nozzle body 3 is mounted on the upper end and the tubular portion 2a. It is composed of a flange portion 2b. When discharging the foamable contents, the flange portion 2b may be pushed downward. By doing so, the stem 13b is pushed down through the tubular portion 2a, and the effervescent content is discharged from the aerosol container 11. The discharged bubbles are supplied to the nozzle body 3 through the tubular portion 2a.

The nozzle body 3 has a substantially cannonball shape pointed toward the tip, and includes an internal passage 4 extending in the axial direction (see FIG. 1c) and an opening 5 opening on the side of the internal passage 4. The lower end of the internal passage 4 penetrates the nozzle body 3 and communicates with the tubular portion 2a. On the other hand, the upper end of the internal passage 4 does not penetrate. In this state, it can be said that the upper end (tip) of the internal passage 4 is closed by the closing portion 6. The inner diameter D1 of the internal passage 4 is 1 to 6 mm, preferably 2 to 5 mm.

The openings 5 have a long slit shape in the axial direction (vertical direction) of the discharge nozzle 1, and a plurality (four) of the openings 5 are provided at equal intervals around the axis of the discharge nozzle 1. The inner peripheral surface 5a of the opening constituting the opening 5 is composed of a pair of left and right side surfaces 5b and 5c in which the upper ends are connected to each other and a lower surface 5d connecting the lower ends of the side surfaces 5b and 5c. The boundary between the inner surface 4a constituting the inner passage 4 and the opening inner peripheral surface 5a is the entrance 5e of the opening 5, and the boundary between the outer surface 3a of the nozzle body 3 and the opening inner peripheral surface 5a is the outlet 5f of the opening 5. , The axial length L1 of the entrance 5e of the opening 5 is 3 to 50 mm, preferably 5 to 40 mm. The width (horizontal opening distance) L2 of the entrance 5e is 0.3 to 3 mm, preferably 0.5 to 2 mm.

As shown in FIG. 1b, the pair of side surfaces 5b and 5c have each side surface 5b and 5c extending from the entrance 5e (internal passage 4) of the opening 5 to the outlet 5f (outer surface 3a of the nozzle body 3: outside) in the horizontal direction. It draws an arc toward it. In this state, it can be said that each side surface 5b and 5c is curved around the axis of the discharge nozzle 1. Further, the arcs formed by these side surfaces 5b and 5c are curved in the same direction as each other. Further, the side surfaces 5b and 5c of the four openings 5 are all curved in the same direction. The degree of curvature, i.e., the curvature of the sides 5b, 5c in the horizontal cross-sectional shape, differs from each other between the pair of sides 5b, 5c. Specifically, when compared in absolute value, the curvature of the side surface (concave surface) 5c located on the outer peripheral side of the curve is larger than the curvature of the side surface (convex surface) 5b located on the inner peripheral side of the curve. (The radius of curvature is small). Further, the distance between the pair of side surfaces 5b and 5c widens outward. As shown in FIG. 1c, the diameter of the internal passage 4 hardly changes in the axial direction. On the other hand, the outer shape of the nozzle body 3 is tapered. Therefore, the horizontal length L3 of the control passage formed by the pair of side surfaces 5b and 5c becomes shorter toward the tip (upward). The length L3 of the control passage is 1 to 6 mm, preferably 2 to 5 mm.

The lower surface 5d is formed with an elevation angle α with respect to the horizontal plane as shown in FIG. 1c. Further, the nozzle body 3 is substantially bullet-shaped, and the outer surface 3a is inclined inward (the axis of the discharge nozzle 1). The outlet 5f of the opening 5 is also tilted, and the angle β of the tilt is 60 to 85 degrees with respect to the horizontal plane. Therefore, it can be said that the opening 5 is opened with an elevation angle.

Specific examples of effervescent contents include facial cleansers, cleaning agents, bathing agents, moisturizers, cleansing agents, sunscreen agents, lotions, shaving agents, depilatory agents, antiperspirants, sterilizing and disinfecting agents, and pest repellents. Skin care agents such as agents, treatment agents, styling agents, hair care agents such as hair dyes, and other human products, foods such as whipped cream, deodorants, fragrances, insect repellents, and household products such as bactericides. Can be mentioned.

The effervescent content comprises a stock solution containing the active ingredient for the above purpose and a propellant for foaming the stock solution, and the propellant includes, for example, propane, butane, pentane and the like, which are aliphatic hydrocarbons having 3 to 5 carbon atoms. Examples thereof include liquefied gas such as hydrogen, hydrofluoroolefin and dimethyl ether, and compressed gas such as carbon dioxide gas and nitrogen. Among them, those containing surfactants such as fatty acid soap and solid oils such as higher alcohols and higher fatty acids in the undiluted solution because they have excellent foam formability and shape retention and it is easy to shape the foam into the desired shape. It is preferable to use liquefied gas as a propellant.

In the aerosol product 10 provided with the discharge nozzle 1 having the above configuration, when the effervescent content is discharged from the aerosol container 11, the effervescent content foams inside the tubular portion 2a and through the internal passage 4 of the nozzle body 3. pass. Then, the traveling direction is changed laterally by the closing portion 6, and the discharge is discharged from the opening 5 to the outside. At this time, the pair of side surfaces 5b and 5c function as control surfaces for controlling the discharge direction, and the bubbles swirl around the axis of the discharge nozzle 1. More specifically, it turns so as to wind around the outer surface 3a of the nozzle body 3. Further, since the lower surface 5d has an elevation angle and the opening 5 has an elevation angle, the bubbles tend to move diagonally upward. As a result, the bubbles discharged from the opening 5 swirl diagonally upward, and the lower part of the bubbles partially overlaps the upper part of the bubbles discharged from the opening 5 adjacent to the opening 5 in the swirling direction. The result is a spiral, or even a soft-serve ice cream-like foam. When the bubbles are discharged while swirling in this way, the momentum of the discharged bubbles is weakened by the contact between the outer surface 3a of the nozzle body 3 and the bubbles, and the scattering of the bubbles can be effectively suppressed. The discharge amount discharged from the aerosol container 11 is preferably 0.5 to 3 g / sec because the discharged bubbles are easily swirled and overlapped to easily obtain a shape like a soft serve ice cream.

FIG. 2 shows another nozzle body 3A. The nozzle body 3A has a substantially conical shape, and is different from the nozzle body 3 of FIG. 1 in which the outer surface 3a bulges outward. By making the outer surface 3a of the nozzle body substantially conical in this way, the layer of bubbles that swirl and overlap becomes sharp and can be clearly seen. In FIG. 2, the outer surface 3a is flat, but it may be warped. Since the configurations of the internal passage 4 and the opening 5 are substantially the same as those of the nozzle body 3 above, a specific description thereof will be omitted.

FIG. 3 shows a nozzle body 3B in which the opening 5 is twisted around the axis of the discharge nozzle 1. This twist is twisted so that the pair of side surfaces 5b and 5c are tilted when the discharge nozzle 1 is viewed from the side. Specifically, the side surface (concave surface) 5c on the outer peripheral side faces downward, and the side surface (convex surface) 5b on the inner peripheral side faces upward. Therefore, as shown in FIGS. 3a and 3c, the inlet 5e and the outlet 5f of the opening 5 composed of the pair of side surfaces 5b and 5c are also twisted around the axis of the discharge nozzle 1. Further, all four openings 5 are twisted in the same direction, and have a spiral shape as a whole. When the opening 5 is twisted in this way, the bubbles discharged upward will proceed while being pressed from above by the side surface 5c on the outer peripheral side, making it easier to swirl the bubbles.

As for the nozzle body 3 of FIG. 1, the outlet 5f of the opening 5 is curved, and it seems that the opening 5 is twisted about the axis. However, since the side surfaces 5b and 5c are not tilted and remain almost vertical, they are not said to be "twisted". That is, in the nozzle body 3 of FIG. 1, as shown in FIG. 4a, the pair of side surfaces 5b and 5c are merely curved around the axis (the arc is drawn in the horizontal direction), and as shown in FIG. 4b. Since the side surfaces 5b and 5c are not tilted, they are "not twisted". Therefore, in the nozzle body 3 of FIG. 1, the entrance 5e of the opening 5 is not twisted and is straight. On the other hand, the nozzle body 3B of FIG. 3 is a combination of the “curvature” of FIG. 4a and the “twist” of FIG. 4b, and the side surfaces 5b and 5c are inclined with respect to the vertical surface and have an opening 5. Both the entrance 5e and the exit 5f are twisted.

FIG. 5 also shows a nozzle body 3C in which the opening 5 is twisted around the axis of the discharge nozzle 1. The nozzle body 3C has a substantially conical shape, which is different from the nozzle body 3B of FIG. 3, which has a substantially cannonball shape. However, since the other points are the same, a specific description will be omitted.

FIG. 6 shows a nozzle body 3D in which the side surfaces 5b and 5c are not curved around the axis of the discharge nozzle 1, that is, have only the “twist” shown in FIG. 4b. In the nozzle body 3, the side surface facing downward by twisting the opening 5 around the axis of the discharge nozzle 1 is the side surface 5c on the outer peripheral side, and the side surface facing upward is the side surface 5b on the inner peripheral side. Even in this nozzle body 3D, the bubbles discharged upward will advance while being pressed from above by the side surface 5c on the outer peripheral side, and the bubbles will swirl. The opening 5 of the nozzle body 3 does not have a lower surface 5d, and the inner peripheral surface 5a of the opening is composed of a pair of side surfaces 5b and 5c. Therefore, a bubble having a taste different from that of the discharge nozzle 1 can be obtained. Specifically, ball-shaped bubbles are formed.

Although the typical embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, in the nozzle bodies 3, 3A, 3B, and 3C of FIGS. 1, 2, 3, and 5, both side surfaces 5b and 5c form an arc, but one of the side surfaces and the inner peripheral side side surface. Only 5b or only the outer peripheral side surface 5c may draw an arc. Further, the side surface 5c on the outer peripheral side has a larger curvature than the side surface 5b on the inner peripheral side, but it may be opposite or may have the same curvature. The number of openings 5 is not limited to four and can be changed as appropriate.

1 Discharge nozzle 2 Operation member 2a Cylindrical part 2b Flange part 3, 3A, 3B, 3C, 3D Nozzle body 3a Outer surface 4 Internal passage 5 Opening 5a Opening inner peripheral surface 5b One side surface (side surface on the outer peripheral side)
5c The other side (side of the inner circumference)
5d Bottom surface 5e Opening entrance 5f Opening exit 6 Closing part 10 Aerosol product 11 Aerosol container 11a Convex part 12 Container body 13 Aerosol valve 13a Mounting cup 13b Stem 14 Cover member D1 Inner diameter L1 Opening entrance shaft Directional length L2 Horizontal width of the entrance of the opening L3 Horizontal length of the control passage α Angle of the lower surface of the opening (elevation angle)
β Opening exit angle

Claims (7)

A discharge nozzle attached to an aerosol container filled with effervescent contents.
An internal passage extending in the axial direction of the discharge nozzle and
A closure that closes the tip of the internal passage,
With an opening that opens on the side of the internal passage,
The inner peripheral surface of the opening constituting the opening has a pair of side surfaces for controlling the discharge direction of the foamable contents discharged from the internal passage to the outside through the opening .
A discharge nozzle of an effervescent content, characterized in that at least one side surface arcs outward from an internal passage such that the foam discharged from the opening swirls around the axis of the discharge nozzle. A discharge nozzle attached to an aerosol container filled with effervescent contents.
An internal passage extending in the axial direction of the discharge nozzle and
A closure that closes the tip of the internal passage,
With an opening that opens on the side of the internal passage,
The inner peripheral surface of the opening constituting the opening has a pair of side surfaces for controlling the discharge direction of the foamable contents discharged from the internal passage to the outside through the opening.
A ejection nozzle for effervescent contents, characterized in that each pair of side surfaces draws an arc from an internal passage toward the outside, and each arc is curved in the same direction. Of the pair of side surfaces, the curvature of the side surface located on the outer peripheral side of the curve is larger than the curvature of the side surface located on the inner peripheral side of the curve.
The ejection nozzle for the effervescent content according to claim 2 . The distance between the sides is widening outward,
The ejection nozzle for an effervescent content according to any one of claims 1 to 3 . The opening is open with an elevation angle,
The ejection nozzle for an effervescent content according to any one of claims 1 to 4 . A discharge nozzle attached to an aerosol container filled with effervescent contents.
An internal passage extending in the axial direction of the discharge nozzle and
A closure that closes the tip of the internal passage,
With an opening that opens on the side of the internal passage,
The inner peripheral surface of the opening constituting the opening has a pair of side surfaces for controlling the discharge direction of the foamable contents discharged from the internal passage to the outside through the opening.
A discharge nozzle for effervescent contents, characterized in that the opening is twisted around the axis of the discharge nozzle. With an aerosol container,
The effervescent contents filled in the aerosol container and
An aerosol product comprising the discharge nozzle according to any one of claims 1 to 6 provided in the aerosol container.

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