JP6746373B2 - Discharge member and aerosol product using the same - Google Patents

Description

The present invention relates to a discharge member for discharging a foamable content into a desired shape and an aerosol product using the discharge member.

As a discharge member for controlling the discharge shape of the foamable contents, for example, Patent Document 1 can be cited. The discharge member of Patent Document 1 has a cup-shaped side wall and a cup-shaped control portion provided at the center of the side wall, and foams along the inner peripheral surface of the side wall and the outer peripheral surface of the control portion. By discharging the volatile content, the content can be discharged while being formed into a cylindrical shape.

JP, 2013-240759, A

By the way, the discharge member of Patent Document 1 is provided with a foaming portion (expansion portion) for foaming (expanding) the contents on the downstream side of the discharge port. It is not about controlling the shape of the foam. Therefore, although the foam can be molded into a rough shape to some extent, it cannot be molded into a fine shape.

It is therefore an object of the present invention to provide a discharge member that can obtain a discharge product having a desired shape that matches the shape of a discharge port, and an aerosol product using the discharge member.

The discharge member of the present invention is a discharge member 20 for connecting to an aerosol container 10 filled with a foamable content, the main body having an expansion chamber E for promoting foaming of the foamable content from the aerosol container 10. , A nozzle 22b that rises from the main body and discharges the foamable content of the expansion chamber E to the outside, and the introduction port 21e for introducing the foamable content from the aerosol container 10 into the expansion chamber E. And a discharge port 22c for discharging the foamable content to the nozzle 22b side. The nozzle 22b has a slit-shaped and annular discharge port 22f, and the discharge port 22f and the discharge port 22c are provided. The communication passage 22g communicating with each other is characterized by having a slit-shaped slit portion, and the length L1 of the slit portion in the discharge direction is larger than the slit width W1 of the discharge port 22f.

It is preferable that a baffle plate 22h is provided on the outlet 22c side of the communication passage 22g.

It is preferable that the nozzle 22b has a polygonal shape and the baffle plate 22h is provided at a corner. The "polygon" includes a star-shaped polygon.

The nozzle 22b may include an outer nozzle wall 22d and an inner nozzle wall 22e, and the inner nozzle wall 22e may be lower than the outer nozzle wall 22d.

A cutout 22i may be provided in the inner nozzle wall 22e from the discharge port 22f toward the main body.

An inner discharge port 22j may be provided inside the inner nozzle wall 22e.

The aerosol product of the present invention is characterized in that the discharge member 20 of the present invention is attached to an aerosol container 10 filled with a foamable content.

In the discharge member of the present invention, since the expansion chamber is provided on the upstream side of the discharge port, the foamable content is foamed in the expansion chamber, and the foamable content (discharge It is possible to suppress additional foaming of the product). Further, the nozzle has a slit-shaped and annular discharge port, and the communication passage that connects the discharge port and the outlet has a slit-shaped slit portion, and the length of the slit portion in the discharge direction is the discharge port. Since it is larger than the slit width of, the foamable content is molded into a slit shape in the slit portion and is discharged from the discharge port so as to be pushed up, and the shape of the foam that is the discharge is hard to collapse, A foam that follows the shape of the discharge port is obtained. In addition, since the surface area of the discharged product becomes large, the active ingredient contained in the content can be easily diffused.

If the baffle plate is provided on the outlet side of the communication passage, it is possible to suppress the deviation of the foamable contents in the communication passage, and it is easy to obtain a desired shape.

If the nozzle has a polygonal shape and the baffle plate is provided at the corner, it is possible to suppress the deviation of the foamable contents toward the corner and obtain a well-shaped polygonal three-dimensional bubble. You can

If the nozzle is composed of an outer nozzle wall and an inner nozzle wall, and the inner nozzle wall is lower than the outer nozzle wall, the bubbles discharged from the discharge port will be closer to the inside of the inner nozzle wall. Can be formed.

If the inner nozzle wall is provided with a cutout from the discharge port toward the main body, a ridgeline can be formed on the surface of the bubble.

If the inner ejection port is provided inside the inner nozzle wall, the bubble can be ejected inside the bubble ejected from the ejection port of the nozzle, and the shape of the bubble can be maintained.

1 illustrates one embodiment of an aerosol product of the present invention. (A) is a side view, (b) is a plan view and (c) is a cross-sectional view taken along the line AA. It is a photograph of the discharge product discharged from the discharge member of FIG. The discharge member which concerns on another embodiment is shown, (a) is a top view and (b) is a photograph of discharge thing. FIG. 11A is a plan view showing a discharge member according to still another embodiment, and FIG. FIG. 11A is a plan view showing a discharge member according to still another embodiment, and FIG. (A) which shows the discharge member which concerns on another embodiment is a top view, (b) is a perspective view, (c) is sectional drawing in the BB position. 7 is a photograph of the ejected material ejected from the ejection member of FIG. 6.

Next, the aerosol product of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1 a, the aerosol product 1 of the present invention comprises an aerosol container 10 and a discharge member 20 attached to the aerosol container 10.

First, the aerosol container 10 will be described. The aerosol container 10 is a container 11 having a bottomed cylindrical shape and a valve assembly 12 attached thereto, and is filled with a foamable content consisting of a stock solution and a liquefied gas. Has been done. The stock solution and the liquefied gas are emulsified in the container 11, and when discharged to the outside, the liquefied gas is vaporized, and the stock solution foams to form a foam. In such contents, if the stock solution is 20 to 97% by mass, the liquefied gas is 3 to 80% by mass, further, the stock solution is 30 to 95% by mass, and the liquefied gas is 5 to 70% by mass. preferable. When the liquefied gas is less than 3% by mass, the formed foam becomes watery and the foam formability and shape retention are deteriorated. When the liquefied gas is more than 80% by mass, the density of the formed foam is small and the foam is small. The shape retention of is poor. A compressed gas such as carbon dioxide gas, nitrous oxide or nitrogen may be blended for the purpose of adjusting the foam quality. As a stock solution, it is preferable that a solvent contains a surfactant in order to form a foam. As such a surfactant, a nonionic surfactant, an anionic surfactant, a cationic surfactant, an amphoteric surfactant, a silicone-based surfactant, an amino acid-based surfactant, etc. are preferable, Further, an anionic surfactant, an amino acid-based surfactant or the like may be added to the nonionic surfactant because it can form a good quality foam. Further, a cationic polymer or a water-soluble polymer such as gelatin or hydroxyethyl cellulose may be added. In addition, the contents appropriately contain an aromatic component such as a fragrance, a deodorant component, a bactericidal component, a cleaning component, a moisturizing component, an insecticidal component, a pest repellent component and the like.

Next, the ejection member 20 will be described. As shown in FIG. 1c, the discharge member 20 is composed of a base portion 21 mounted on the stem 12a of the aerosol container 10 and a nozzle portion 22 placed on the base portion 21. As the base portion 21 and the nozzle portion 22, for example, a synthetic resin molded product is used. A metering unit capable of supplying a constant amount of the foamable content to the expansion chamber E may be provided between the stem 12a and the base portion 21. This facilitates the formation of bubbles into a stable shape.

The base portion 21 is provided below the base portion 21 with a cylindrical coupling portion 21a that is coupled to the stem 12a. Further, a cylindrical cover portion 21b is provided so as to cover the outer periphery of the connecting portion 21a. From the side surface of the base portion 21, a flange portion 21c extends outward in the radial direction. The flange portion 21c is a finger hook for pushing down the discharge member 20 when operating the stem 12a of the aerosol container 10.

A shallow bowl-shaped body 21d is provided above the base portion 21. The expansion chamber E is formed inside the bowl-shaped body 21d by closing the upper portion of the bowl-shaped body 21d with the substrate portion 22a of the nozzle portion 22 described later. In this state, it can be said that the base portion 21 and the substrate portion 22a of the nozzle portion 22 form a main body having the expansion chamber E.
The bottom of the bowl-shaped body 21d is provided with an inlet 21e communicating with the connecting portion 21a and for introducing the content from the aerosol container 10 into the expansion chamber E.

As shown in FIGS. 1B and 1C, the nozzle portion 22 includes a disk-shaped substrate portion 22a and a nozzle 22b protruding upward from the substrate portion 22a.

The substrate portion 22a is provided with a slit-shaped outlet 22c for leading out the contents from the expansion chamber E into the nozzle 22b. The outlet 22c has a generally rectangular shape (square) in plan view as a whole, but its four corners are closed by baffles 22h described later. Therefore, it can be said that the shape of the outlet 22c is a discontinuous annular shape in which four linear elongated holes are arranged in a substantially rectangular shape.

The nozzle 22b has a rectangular shape (polygonal shape) in plan view, more specifically a square shape, and has an outer nozzle wall 22d having a rectangular tube shape that rises from the upper surface of the substrate portion 22a and a substrate portion 22a inside the outer nozzle wall 22d. It is composed of an outer nozzle wall 22d and an inner nozzle wall 22e having a similar shape and rising from the upper surface of the. The nozzle 22b has a continuous annular, more specifically, a slit-shaped ejection port 22f having a rectangular shape (square) in a plan view between the outer nozzle wall 22d and the inner nozzle wall 22e.

The outlet 22c and the outlet 22f communicate with each other through a communication passage 22g. The communication passage 22g has a slit portion that is substantially the same shape as the discharge port 22f in plan view and has an annular slit shape in plan view. A baffle plate 22h is provided on the outlet 22c side of the communication passage 22g.

The baffles 22h are provided at the four corners (corners) of the nozzle 22b, which has a rectangular shape in plan view. As shown in FIG. 1c, the baffle plate 22h has a lower side protruding from the lower surface of the substrate portion 22a. This projecting portion has a substantially rectangular shape in plan view as shown by the broken line in FIG. 1b, and one end portion in the longitudinal direction faces the inlet 21e. It should be noted that this state can be said to be projected toward the introduction port 21e side or arranged radially when viewed from the introduction port 21e. Further, the upper side of the baffle plate 22h partially enters into the communication passage 22g so as to partially close the outlet 22c side of the communication passage 22g. The baffle plate 22h also functions as a connecting portion that connects the inner nozzle wall 22e, which is divided by the outlet 22c and the communication passage 22g, to the outer nozzle wall 22d side.

By the way, the length L1 of the slit portion in the ejection direction (vertical direction) is larger than the slit width (width in the lateral direction) W1 of the ejection port 22f, preferably twice or more, and more preferably 3 times the slit width W1. That is all. Further, the downward protrusion length L2 of the baffle plate 22h is set to be larger than the slit width W1, preferably 1.5 times or more the slit width W1, and more preferably 2 times or more. The length L3 of the baffle plate 22h entering the communication passage 22g is also larger than the slit width W1, preferably 1.5 times or more the slit width W1, and more preferably 2 times or more.

When the discharge member 20 having the above-described configuration is attached to the stem 12a of the aerosol container 10 and the discharge member 20 is pushed (the stem 12a is operated), the content discharged from the stem 12a first flows from the inlet 21e to the expansion chamber E. Will be introduced in. The contents introduced into the expansion chamber E initially flow upward along the stem 12a, but collide with the lower surface of the base plate portion 22a to change the flow laterally. The impact at this time and the increase in the volume from the inlet 21e to the expansion chamber E promote the vaporization of the liquefied gas in the content, and the foaming of the content proceeds. As shown in FIG. 1c, since the inlet 21e and the outlet 22c do not face each other, the contents that are not sufficiently foamed are not directly discharged to the outside.

The content flowing in the lateral direction flows into the nozzle 22b from the outlet 22c, is discharged to the outside from the discharge port 22f through the communication passage 22g. At this time, since the length L1 of the slit portion in the discharge direction is larger than the slit width W1 of the discharge port 22f, the discharge direction (axial direction of the nozzle 22b) is stable. Further, since the baffle plates 22h are provided at the four corners of the nozzle 22b having a rectangular shape in plan view, the flow velocity of the contents at the corners where the contents are concentrated can be suppressed, and further, the baffles plate 22h. The lower part of the baffle plate 22h is provided so as to project into the expansion chamber E, and the upper part of the baffle plate 22h is provided so as to enter the outlet 22c side of the communication passage 22g. The function as a rectifying plate that suppresses the turbulent flow of the contents (bubbles) flowing from the chamber E to the communication passage 22g is achieved, and a foam body having a desired shape along the shape of the discharge port 22f can be obtained. The contents are once separated by the baffle plate 22h, but stick together again in the communication passage 22g. Therefore, for example, with the discharge member shown in FIG. 1, as shown in FIG. 2, it is possible to obtain the rectangular tubular foam body X having the same planar shape as the discharge port 22f having a square shape in plan view. When the baffle plate 22h is not provided (when it enters the communication passage 22g side and suppresses the protrusion to the expansion chamber E side), the contents flowing from the expansion chamber E to the outlet port 22c are likely to concentrate on the corner portion, In some cases, the side wall of the tubular foam body X becomes thin and dents toward the inside (center), and it is difficult to obtain a beautiful rectangular tubular foam body.

Further, since the nozzle 22b is provided so as to project from the substrate portion 22a, when the nozzle 22b is ejected toward an object such as a palm, the nozzle 22b has a smaller area than the area where the foamed content contacts the object. The area in contact with the tip surface becomes small (the area difference becomes large), the bubbles easily separate from the nozzle, and the bubbles can be attached to an object such as a hand without breaking the shape formed by the nozzle. The aerosol product of the present invention that forms such a discharge is suitable for products for space such as fragrances, deodorants, bactericides and pest repellents, products for human body such as moisturizers, detergents and bath salts. Used for.

FIG. 3 is a plan view showing another discharge member 20A. As shown in FIG. 3a, in this discharge member 20A, the shape of the nozzle 22b is circular in plan view, and a circular slit shape is formed between the cylindrical outer nozzle wall 22d and the cylindrical inner nozzle wall 22e. 22f and a circular slit-shaped slit portion are formed. The length L1 of the slit portion in the discharge direction is larger than the slit width W1 of the discharge port 22f, similarly to the discharge member 20 shown in FIG. Further, as shown by a broken line, baffle plates 22h having a substantially rectangular shape in plan view are provided at four locations at equal intervals in the circumferential direction. With the discharge member 20A having such a configuration, a clean cylindrical foam body X as shown in FIG. 3B can be obtained. Even if the cylindrical nozzle 22b is not provided with the baffle plate 22h, the side surface of the foam X tends to be recessed inward.

FIG. 4 is a plan view showing yet another discharge member 20B. As shown in FIG. 4a, in the discharge member 20B, the shape of the nozzle 22b is a heart shape in plan view, and a discharge opening 22f having a heart shape and a slit shape is formed between the outer nozzle wall 22d and the inner nozzle wall 22e. And a slit portion having a heart shape and a slit shape. The length L1 of the slit portion in the discharge direction is larger than the slit width W1 of the discharge port 22f, similarly to the discharge member 20 shown in FIG. The baffle plates 22h are respectively provided on the upper and lower bent portions of the paper and the left and right end portions where the curvature greatly changes. In the discharge member 20B having such a configuration, by providing a baffle plate at the bent portion or the end portion where the curvature greatly changes, the contents (bubbles) flowing from the expansion chamber E to the communication passage 22g are equalized, and shown in FIG. 4b. Such a tubular foam body X having a clean heart-shaped plane can be obtained.

FIG. 5 is a plan view showing another discharge member 20C. As shown in FIG. 5a, in this discharge member 20C, the shape of the nozzle 22b is star-shaped (polygonal shape) in plan view, and a star-shaped slit shape is formed between the outer nozzle wall 22d and the inner nozzle wall 22e. 22f and a star-shaped slit portion having a slit shape are formed. The length L1 of the slit portion in the discharge direction is larger than the slit width W1 of the discharge port 22f, similarly to the discharge member 20 shown in FIG. The baffle plates 22h are provided at the corners and the corners, respectively. In the discharge member 20C having such a configuration, by providing baffle plates at the corners and corners, the contents (bubbles) flowing from the expansion chamber E to the communication passage 22g are equalized, and a clean member as shown in FIG. 5b is obtained. A tubular foam X having a star-shaped plane can be obtained.

The discharge members 20A to 20C shown in FIGS. 3 to 5 are different from each other in the plane shape of the nozzle 22b and the position of the baffle plate 22f. More specifically, the lower side of the baffle plate 22h projects downward from the base plate portion 22a, and the upper side of the baffle plate 22h enters the communication passage 22g side, which is substantially the same as the discharge member 20 shown in FIG. It has a configuration. Therefore, detailed description of other configurations will be omitted.

FIG. 6 shows yet another discharge member 20D. As shown in FIG. 6a, in the ejection member 20D, the nozzle 22b has a rectangular shape in plan view, and is substantially the same as the ejection member 20 shown in FIG. However, as shown in FIGS. 6B and 6C, the inner nozzle wall 22e is lower than the outer nozzle wall 22d (the protruding length from the substrate portion 22a is short), the four nozzles of the inner nozzle wall 22e from the discharge port 22f to the substrate. The discharge member 20 shown in FIG. 1 differs from the discharge member 20 shown in FIG. 1 in that a notch 22i is provided toward the portion 22a and an inner discharge port 22j is provided inside the inner nozzle wall 22e.

The upper end surface of the inner nozzle wall 22e is formed lower than the upper end surface of the outer nozzle wall 22d over the entire circumference. Therefore, the ejection port 22f provided between the inner nozzle wall 22e and the outer nozzle wall 22d is opened in a state of being inclined inward.
The cutout 22i is formed by cutting out from the upper end surface of the inner nozzle wall 22e downward in a slit shape by about 1/4 of the length L1 of the slit portion.
A cylindrical recess 22k is provided at the center of the substrate portion 22a. A plurality of communication holes 22m communicating with the expansion chamber E are provided at equal intervals (three places) from the cylindrical wall 22L forming the side surface of the recess 22k to the bottom plate 22n, so that the inner discharge port 22j communicates with the expansion chamber E. doing. The bottom plate 22n, which forms the bottom surface of the recess 22k, faces the inlet 21e and suppresses discharge of the insufficiently foamed content from the communication hole 22m (inner discharge port 22j).

In the ejection member 20D having such a configuration, the ejection port 22f is inclined inwardly, so that the quadrangular pyramidal foam X can be obtained. Further, since the notches 22i are provided at the four corners of the inner nozzle wall 22e, extra bubbles can be put inside, and as shown in FIG. 7, a clean ridge line can be formed at the four outer corners of the quadrangular pyramid. it can. Furthermore, since the inner ejection port 22j is provided inside the inner nozzle wall 22e, the foam can be filled inside the tubular foam formed by the ejection port 22f, and the ejection port 22f alone can be used. The shape of the foam can be maintained for a long period of time as compared with the case of forming a quadrangular pyramid-shaped foam. When the baffle plate 22h and the notch 22i are not provided, the surface of the foam discharged from the discharge port 22f is unlikely to be a flat quadrangular pyramid, and is not compatible with the foam discharged from the inner discharge port 22j. Gaps are likely to be formed between the foam bodies at the four corners, and the side surfaces are likely to have inward depressions.

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, although the ejection port 22f has a planar shape of a square, a circle, a heart shape, or a star shape in the above embodiment, the shape is not limited to this, and various shapes such as a triangular shape, a pentagonal shape, a hexagonal shape, and a flower shape. Can be adopted. Further, the planar shape of the outlet 22c is a slit like the outlet 22f and the communication passage 22g, but may be circular or square. Even in this case, bubbles can be formed by the slit portion of the communication passage 22g extending in the vertical direction, and a desired shape along the shape of the discharge port 22f can be obtained. Further, although the width of the slit portion is the same width from the outlet 22c to the ejection port 22f, it may be configured such that the width becomes narrower toward the ejection port 22f (that is, it may be tapered). .. Further, in the above embodiment, the ejection port 22f has a continuous annular shape, but may have a discontinuous annular shape. In addition to the integrally molded product of the synthetic resin, the nozzle portion 22 includes a box-shaped component including the inner nozzle wall 22e and the substrate portion 22a, a component including the outer nozzle wall 22d, and a baffle plate 22h. It may be formed by molding with a body and then engaging with each other.

1-Aerosol product 10-Aerosol container 11-Container 12-Valve assembly 12a-Stem 20, 20A, 20B, 20C, 20D-Discharge member 21-Base portion 21a-Coupling portion 21b-Cover portion 21c ··· Flange (finger rest)
21d ··· Bowl 21e ··· Inlet 22 · · Nozzle portion 22a · · Substrate 22b · · Nozzle 22c · · Outlet 22d · · Outer nozzle wall 22e · · Inner nozzle wall 22f · · Discharge port 22g · · Communication passage 22h ··· Baffle plate 22i · · Cutout 22j · · Inner discharge port 22k · · Recess 22L · · Cylindrical wall 22m · · Communication hole 22n · · Bottom plate E · · Expansion chamber L1 · · Length of slit part in the discharge direction L2... Protrusion length downward of baffle plate L3... Length of baffle plate entering communication passage W1... Slit width of discharge port (width in nozzle thickness direction)
X... Discharged product (foam)

Claims (7)

A discharge member for connecting to an aerosol container filled with a foamable content,
A main body having an expansion chamber for promoting foaming of the foamable contents from the aerosol container,
A nozzle that rises from the main body and discharges the foamable content of the expansion chamber to the outside,
The expansion chamber is provided with an inlet for introducing the foamable content from the aerosol container and an outlet for guiding the foamable content to the nozzle side.
The nozzle has a slit-shaped and annular discharge port,
Communicating passage communicating the the discharge port and the outlet port has a slit portion of the slit-shaped, the length of the discharge direction of the slit portion, Ri Oh large than the slit width of the discharge port,
A baffle plate is provided on the outlet side of the communication passage,
A discharge member in which the baffle plate is inserted into the communication path . The discharge member according to claim 1 , wherein a length of the baffle plate entering the communication passage side is larger than a slit width of the discharge port . The discharge member according to claim 1, wherein the nozzle includes an outer nozzle wall and an inner nozzle wall, and the inner nozzle wall is lower than the outer nozzle wall. A discharge member for connecting to an aerosol container filled with a foamable content,
A main body having an expansion chamber for promoting foaming of the foamable contents from the aerosol container,
A nozzle that rises from the main body and discharges the foamable content of the expansion chamber to the outside,
The expansion chamber is provided with an inlet for introducing the foamable content from the aerosol container and an outlet for guiding the foamable content to the nozzle side.
The nozzle has a slit-shaped and annular discharge port,
Communicating passage communicating the the discharge port and the outlet port has a slit portion of the slit-shaped, the length of the discharge direction of the slit portion, Ri Oh large than the slit width of the discharge port,
A discharge member in which the nozzle has a polygonal shape, and baffle plates are provided at corners on the outlet side of the communication passage . A discharge member for connecting to an aerosol container filled with a foamable content,
A main body having an expansion chamber for promoting foaming of the foamable contents from the aerosol container,
A nozzle that rises from the main body and discharges the foamable content of the expansion chamber to the outside,
The expansion chamber is provided with an inlet for introducing the foamable content from the aerosol container and an outlet for guiding the foamable content to the nozzle side.
The nozzle has a slit-shaped and annular discharge port,
Communicating passage communicating the the discharge port and the outlet port has a slit portion of the slit-shaped, the length of the discharge direction of the slit portion, Ri Oh large than the slit width of the discharge port,
The nozzle comprises an outer nozzle wall and an inner nozzle wall, the inner nozzle wall being lower than the outer nozzle wall,
A discharge member in which a cutout is provided in the inner nozzle wall from the discharge port toward the main body . A discharge member for connecting to an aerosol container filled with a foamable content,
A main body having an expansion chamber for promoting foaming of the foamable contents from the aerosol container,
A nozzle that rises from the main body and discharges the foamable content of the expansion chamber to the outside,
The expansion chamber is provided with an inlet for introducing the foamable content from the aerosol container and an outlet for guiding the foamable content to the nozzle side.
The nozzle has a slit-shaped and annular discharge port,
Communicating passage communicating the the discharge port and the outlet port has a slit portion of the slit-shaped, the length of the discharge direction of the slit portion, Ri Oh large than the slit width of the discharge port,
The nozzle comprises an outer nozzle wall and an inner nozzle wall, the inner nozzle wall being lower than the outer nozzle wall,
A discharge member in which an inner discharge port is provided inside the inner nozzle wall . An aerosol product obtained by mounting the discharge member according to any one of claims 1 to 6 on an aerosol container filled with a foamable content.