2 liquid expelled products

Abstract

This invention provides a two-component dispensing product that dispenses two types of contents in a three-dimensional, aesthetically pleasing shape and can stably maintain that shape. [Solution] The solution consists of a first container 10 equipped with a first stem 12a, a foamy first content C1 filled in the first container 10, a second container 20 equipped with a second stem 22a, a second content C2 filled in the second container 20 containing a creamy or gel-like stock solution with a viscosity of 3,000 to 40,000 mPa·s at 20°C, and a two-liquid dispensing member 40 attached to the first stem 12a and the second stem 22a. The two-liquid dispensing member 40 consists of an inner nozzle 80 for dispensing the first content C1, an outer nozzle 90 for dispensing the second content C2 so as to cover the area around the dispensed first content C1, and a notched nozzle 41 provided at the tip of the outer nozzle 90. The dispensed material has multiple folds T of the second content C2 formed around the first content C1.

Description

Technical Field

[0001] The present invention relates to a two - liquid discharge product that discharges two separately filled contents in a three - dimensional shape with one content surrounding the other content and can be stably held.

Background Art

[0002] Patent Document 1 discloses a two - liquid discharge member and a two - liquid discharge product including an inner nozzle and an outer nozzle, and covering the periphery of the first content discharged from the first discharge port of the inner nozzle with the second content discharged from the second discharge port between the inner nozzle and the outer nozzle. A plurality of V - shaped cuts are provided at the tip of the outer nozzle. Due to the foaming of the inner first content, the outer second content is pushed out and bulges from the cuts, forming streaks like squeezing out cream on the surface of the second content.

[0003] In the two - liquid discharge product of Patent Document 1, since the discharged first content is covered with the second content, when the first content emits an odor, the second content can block the odor. Further, since the second content extends in a plurality of protruding and grooved shapes on the surface of the first content, it has a good - looking appearance like squeezing out cream with a squeezing die. Moreover, it is easy to uniformly mix the two liquids.

[0004] Patent Document 2 discloses a discharge tool for an aerosol container in which the tip of the discharge port part is curved in a dome shape and a plurality of cuts are formed from the tip toward the base. Examples of the cuts include rectangular and V - shaped ones, and a type in which a triangular protrusion protrudes from the root of the cut is also disclosed. This discharge tool discharges contents such as hair styling agents containing aromatic components in a mousse or foam shape, and can improve the aesthetics by forming a large number of uneven stripes on the surface of the content discharged in a rod shape. Further, the surface area of the discharged material can be widened to enhance the effect of the aromatic component.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Publication No. 2023-170493 [Patent Document 2] Patent No. 6734699 [Overview of the project] [Problems that the invention aims to solve]

[0006] The two-liquid dispensing product of Patent Document 1 allows for the dispensing of a soft substance, for example, by laying it flat on the palm of the hand. Therefore, after enjoying its appearance, it can be easily mixed by crushing it with both hands. However, it is not intended to maintain a three-dimensional shape, and maintaining a three-dimensional shape is difficult. The dispensing device of Patent Document 2 can improve the aesthetics and fully exhibit the fragrance effect when dispensing a single type of substance in a mousse or foam form. However, it does not dispense two types of substances, and furthermore, it is difficult to dispense the contents in a three-dimensional shape and maintain that shape.

[0007] The present invention aims to provide a two-component dispensing product that can dispense two types of contents in a three-dimensional, aesthetically pleasing shape, and furthermore, can stably maintain that three-dimensional shape. [Means for solving the problem]

[0008] The two-liquid dispensing products 1, 1A, and 1B of the present invention consist of a first container 10 equipped with a first stem 12a, a foaming first content C1 filled in the first container 10, a second container 20 equipped with a second stem 22a, a second content C2 filled in the second container 20 containing a creamy or gel-like stock solution G having a viscosity of 3,000 to 40,000 mPa·s at 20°C, and two-liquid dispensing members 40, 40A, and 40B attached to the first stem 12a and the second stem 22a, and 2 Each liquid dispensing member 40, 40A, and 40B consists of an inner nozzle 80 for dispensing a first contents C1, an outer nozzle 90 for dispensing a second contents C2 (second discharged product F2) so as to surround the discharged first contents C1 (first discharged product F1), and a notched nozzle 41 provided at the tip of the outer nozzle 90, which has multiple notches 41c near the tip and an inner surface that gradually narrows towards the tip. The discharged product F is characterized in that multiple folds T of the second contents C2 are formed around the first contents C1.

[0009] In such two-component dispensing products 1, 1A, and 1B, it is preferable that the notch 41c of the notched nozzle 41 is rectangular or trapezoidal in shape, and that a projection 41e protrudes from the bottom of the notch 41c toward the tip of the nozzle. Furthermore, it is preferable that the second contents C2 is darker in color than the first contents C1.

[0010] Furthermore, it is preferable that the first content C1 contains a stock solution containing a surfactant and a solvent, and a propellant, and the second content C2 contains a cream-like stock solution G containing a surfactant, an oil, and water, and a pressurizing agent P. Alternatively, it is preferable that the first content C1 contains a stock solution containing a surfactant and a solvent, and a propellant, and the second content C2 contains a gel-like stock solution G containing a water-soluble polymer and water, and a pressurizing agent P.

[0011] In the two-liquid dispensing products 1A and 1B, the two-liquid dispensing members 40A and 40B may include parallel sections (63a, T1, T2) that direct the first contents C1 and second contents C2 coming out of the first stem 12a and the second stem 22a forward in parallel, and conversion sections (63c, 63c1, 63c2) that direct the first contents C1 and second contents C2 coming out side by side from the parallel section (63a) concentrically into a passage (N1) inside the inner nozzle 80 and a passage (N2) in the gap between the inner nozzle 80 and the outer nozzle 90, respectively. [Effects of the Invention]

[0012] The two-component dispensed product of the present invention can dispense a foamy first component from an inner nozzle, and then dispense a creamy or gel-like second component to surround it. The undiluted second component has a viscosity of 3,000 to 40,000 mPa·s at 20°C, which suppresses the expansion of the first component that would otherwise expand due to foaming. This balance between the expansion of the first component due to foaming and the suppression of the expansion of the second component maintains a three-dimensional shape.

[0013] The tip of the notched nozzle then creates multiple grooves on the surface of the second discharge (the undiluted second contents), leaving folds (ridges, protrusions) between adjacent grooves. At this time, due to the foaming and expansion of the first contents, the second contents also spread and thin out to some extent in each groove, and the spread second contents thicken the folds themselves. As a result, the folds become more prominent, and multiple folds with a specific viscosity surround and support the foamed first discharge (the discharged first contents), resulting in a structurally stable three-dimensional shape and an aesthetically pleasing appearance. In particular, when the nozzle is pulled away from the discharge that has adhered to the object, the end of the discharge becomes thinner. At that time, the ends of the folds converge towards the center, creating a shape like the beams of a dome. As a result, an even more stable structure and superior aesthetics are obtained.

[0014] If the notch of the notched nozzle is rectangular or trapezoidal, and a projection extends from the bottom of the notch toward the tip of the nozzle, the ridges of the pleats of the second contents will split into two, resembling two ribbons (two lines), which enhances the effect of maintaining the three-dimensional shape of the discharged material by the pleats and also presents a more desirable aesthetic appearance.

[0015] If the second contents exhibit a darker color than the first contents, the color will be lighter in the areas between the thinly stretched folds, while the folds themselves will be thicker and retain their darker color. This enhances the aesthetic appeal of the folds, and a gradient is created from the darker folds to the lighter folds, allowing the user to enjoy an even more desirable aesthetic.

[0016] If the first contents contain a stock solution containing a surfactant and a solvent, and a propellant, and the second contents contain a creamy stock solution containing a surfactant, an oil, and water, and a pressurizing agent, it is possible to create an aesthetically pleasing three-dimensional shape, and it becomes easier to mix the foam and cream, making it easier to spread when applied to the skin or hair.

[0017] When the first contents contain a stock solution containing a surfactant and a solvent, and a propellant, and the second contents contain a gel-like stock solution containing a water-soluble polymer and water, and a pressurizing agent, a transparent gel can be formed to create an aesthetically pleasing three-dimensional shape, and this three-dimensional shape can be maintained for a long period of time.

[0018] In the aforementioned two-component dispensing product, if the two-component dispensing member includes a parallel section that directs the first and second contents coming out of the first and second stems forward in parallel, and a conversion section that directs the first and second contents coming out side by side from the parallel section concentrically through the passage inside the inner nozzle and the passage in the gap between the inner nozzle and the outer nozzle, respectively, then a conventional two-component dispensing product can be easily converted into the two-component dispensing product of the present invention. [Brief explanation of the drawing]

[0019] [Figure 1]It is a partially cut-away front view showing a two-liquid discharge product according to an embodiment of the present invention. [Figure 2] It is a partially omitted perspective view showing an embodiment of a two-liquid discharge member. [Figure 3] Figures 3A, 3B, and 3C are a perspective view, a front view, and a longitudinal sectional view respectively showing an embodiment of a cut nozzle. [Figure 4] It is a horizontal sectional view of a two-liquid discharge member. [Figure 5] Figure 5A is a perspective view corresponding photograph showing an example of a discharge product, and Figures 5B and 5C are a plan view and a longitudinal sectional view showing changes after the discharge of the discharge product. [Figure 6] Figure 6A is a partially omitted perspective view showing another embodiment of a two-liquid discharge member, and Figure 6B is a side view of a cut nozzle used therefor. [Figure 7] It is a perspective view showing the state before assembly of another embodiment of a two-liquid discharge product. [Figure 8] Figures 8A and 8B are a partially cut-away plan view and a partially cut-away front view respectively of a two-liquid discharge container and a parallel discharge spout. [Figure 9] Figure 9A is an upper and lower cut-away perspective view after assembly of a two-liquid discharge member, Figure 9B is an upper and lower cut-away plane of a conversion unit, Figure 9C is a front view of the conversion unit, and Figure 9D is a rear view of the conversion unit. [Figure 10] Figures 10A and १०B are an upper and lower cut-away plane and a front view showing another embodiment of a conversion unit. [Figure 11] Figures 11A and 11B are an upper and lower cut-away plan view and an upper and lower cut-away perspective view showing an embodiment of a conversion / cut integrated nozzle according to the present invention. [Figure 12] It is a sectional view showing still another embodiment of a two-liquid discharge product.

Mode for Carrying Out the Invention

[0020] [Two-liquid discharge container] Next, a two-liquid dispensing container 2 and a two-liquid dispensing product 1 according to one embodiment of the present invention will be described in detail with reference to the drawings. As shown in Figure 1, the two-liquid dispensing container 2 comprises a first container 10, a second container 20, and a two-liquid dispensing member 40 attached to the first container 10 and the second container 20. The two-liquid dispensing product 1 is obtained by filling the first container 10 of the two-liquid dispensing container 2 with a first content C1 and filling the second container 20 with a second content C2. Hereinafter, each member and content will be described in detail.

[0021] The first container 10 on the left side of Figure 1 is an aerosol container comprising a container body 11 and a first valve 12. The container body 11 is a bottomed cylindrical shape with an open top end, and the first valve 12 is attached to this opening to create a sealed state. Inside the first container 10 is an inner bag 10a for protecting the inner surface of the container body 11 from the first contents C1. No pressurizing agent is filled between the inner bag 10a and the container body 11, and the inner bag 10a is fitted to the inner surface of the container body 11 with almost no gap. The first valve 12 is a known aerosol valve. This first valve 12 opens by pushing in the first stem 12a and closes by stopping the pushing of the first stem 12a.

[0022] The second container 20 is an aerosol container comprising a container body 21 and a second valve 22. The container body 21 has the same shape and size as the container body 11 of the first container 10. Inside the second container 20, an inner bag 20a for filling with the undiluted liquid G of the second contents C2 is housed with a gap between it and the container body 21. The space between the inner bag 20a and the container body 21 is filled with a pressurizing agent P. The second valve 22 is also a known aerosol valve, opening when the second stem 22a is pushed in, and closing when the pushing of the second stem 22a is stopped and it returns due to the biasing force of the spring. Furthermore, the second valve 22 has the same configuration, shape, and size as the first valve 12. Therefore, if both stems 12a and 22a are dispensed simultaneously, the contents C1 and C2 will be dispensed simultaneously or sequentially at appropriate timings.

[0023] The first container 10 and the second container 20 are connected laterally to each other by a cover member 30, and their relative positions are fixed. Therefore, the first stem 12a and the second stem 22a are aligned side by side. The cover member 30 comprises two fixing cylinders 30a that are fitted onto the tops of the first container 10 and the second container 20, a connecting portion 30b that connects the fixing cylinders 30a laterally, and a cover portion 30c that extends upward from the fixing cylinders 30a and covers the outside of the two-liquid discharge member 40.

[0024] [Operating lever] Furthermore, this two-liquid dispensing container 2 is equipped with an operating lever 32 having pressing protrusions 31, 31 that press the upper ends of the bases 51, 51 of the first and second stem joints 50, 60 in order to simultaneously press both stems 12a, 22a. The operating lever 32 is pivotably connected to a fixed part 33 attached to the cover part 30c. With such an operating lever 32, both stems 12a, 22a can be simultaneously pressed / released to open and close both valves 12, 22 at the same time. By changing the timing of pressing the first and second stem joints 50, 60, or by using a bypass mechanism described later, the first contents C1 can be dispensed somewhat later than the second contents C2, so that the leading part of the first contents C1 is sufficiently covered with the second contents C2, making it easier to adhere to the palm of your hand and less likely to drip. Alternatively, the second content C2 can be dispensed somewhat later than the first content to firmly cover the trailing end portion (end of the foam) of the first content C1 with the second content C2, making it easier to maintain the three-dimensional shape (see Figures 5A-C).

[0025] [Two-liquid dispensing member] As shown in Figure 4, the two-liquid dispensing member 40 comprises a first stem joint 50 attached to the first stem 12a, a second stem joint 60 attached to the second stem 22a, and a nozzle member 70 connected to the first stem joint 50 and the second stem joint 60.

[0026] The first stem joint 50 is a member that connects the first stem 12a and the nozzle member 70. As shown in Figures 1 and 4, it comprises a substantially cylindrical base 51 and a substantially cylindrical nozzle connection portion 52 that protrudes in a direction substantially perpendicular to the axial direction of the base 51 (lateral direction). The lower end of the base 51 and the tip of the nozzle connection portion 52 are open. The nozzle connection portion 52 is the part that is inserted into and connected to the nozzle member 70. Inside the first stem joint 50, there is an internal joint passage J1 that extends from the opening at the lower end of the base 51 to the opening at the tip of the nozzle connection portion 52. The internal joint passage J1 has a substantially L-shape, extending upward along the axial direction of the base 51 from the stem mounting portion at the lower end of the first stem joint 50, and then extending laterally along the axial direction of the nozzle connection portion 52.

[0027] The second stem joint 60 has the same configuration as the first stem joint 50, and the path length of the joint passage J1 is also the same. Therefore, the same reference numeral is used, and a detailed explanation is omitted.

[0028] As shown in Figure 4, the nozzle member 70 is a so-called double nozzle, comprising an inner nozzle 80 having a first discharge port 81a at its axial tip, and an outer nozzle 90 that covers the inner nozzle 80 and forms a second discharge port 93c between the inner nozzle 80 and the outer nozzle 90. The inner nozzle 80 and the outer nozzle 90 are arranged concentrically (along the axis AL). The inner nozzle 80 is detachably attached to the outer nozzle 90.

[0029] The inner nozzle 80 comprises a cylindrical inner cylinder portion 81 and a flange portion 82 provided at the rear end of the inner cylinder portion 81. The cross-sectional shape of the inner cylinder portion 81 is circular both on the outer and inner circumference. Therefore, it is rotatable around the axis relative to the outer nozzle 90. However, it is not limited to a circle; it may also be polygonal. It is particularly preferable that it be rotationally symmetrical, such as a regular polygon, so that it can be rotated around the axis and inserted at different angles. Inside the inner cylinder portion 81, an inner nozzle passage N1 is provided along the axial direction. The tip of the inner nozzle passage N1 is the first discharge port 81a. The rear end of the inner nozzle passage N1 is closed by the flange portion 82. The inner nozzle passage N1 gradually widens towards the tip. On the side surface of the inner cylinder portion 81, an outlet hole 81b is provided that connects the outside of the inner cylinder portion 81 to the inner nozzle passage N1. The outlet hole 81b is located behind the partition portion 93b, which will be described later, when the inner nozzle 80 is attached to the outer nozzle 90.

[0030] The flange portion 82 remains exposed to the outside even after the inner nozzle 80 is attached to the outer nozzle 90. When viewed from the rear, this exposed portion resembles a track, which is to allow external monitoring of the displacement of the outlet hole 81b caused by the rotation of the inner nozzle 80 around its axis. For example, by associating the position of the straight section of the track with the position of the outlet hole 81b, the displacement of the outlet hole 81b around its axis can be externally monitored based on the inclination of the straight section relative to the outer nozzle 90. In addition to the track shape, the shape of the exposed portion may also be non-circular, and features such as indentations or scales may be provided as markers for monitoring the displacement.

[0031] As shown in Figure 4, the outer nozzle 90 includes a first joint connection portion 91 for connecting the first stem joint 50, a second joint connection portion 92 for connecting the second stem joint 60, and a cylindrical outer cylinder portion 93.

[0032] The first joint connection portion 91 protrudes from the outer circumferential surface of the outer cylinder portion 93 in a direction substantially perpendicular to the axial direction of the outer cylinder portion 93 (lateral direction). An insertion space 91a is provided that opens in the protruding direction, and this insertion space 91a and the annular passage A1, which will be described later, are connected by an introduction hole 91b formed at the bottom of the insertion space 91a.

[0033] The second joint connection portion 92 has the same configuration as the first joint connection portion 91. Furthermore, the position of the outer cylinder portion 93 in the axial direction (front-to-back direction) and the position in the direction perpendicular to the axial direction (up-down direction) are the same as those of the first joint connection portion 91. The insertion space 92a of the second joint connection portion 92 and the outer nozzle internal passage N2, which will be described later, are connected by a communication hole 92b formed at the bottom of the insertion space 92a.

[0034] The cross-sectional shape of the outer cylinder portion 93 is circular both on the outer and inner circumference. However, it is not limited to a circle; it may also be a polygon. It is preferable that it be rotationally symmetric, such as a regular polygon. Inside the outer cylinder portion, a housing space 93a is provided along the axial direction for housing the inner nozzle 80. The housing space 93a communicates with the outside in the front-rear direction. In addition, a partition portion 93b that protrudes in the radial direction and is continuous in the circumferential direction is provided on the inner surface of the outer cylinder portion 93. This partition portion 93b abuts against the outer circumferential surface of the inner nozzle 80, thereby dividing the housing space 93a into a front space FS and a rear space BS. The outer nozzle internal passage N2 is formed in the front space FS, and the annular passage A1 is formed in the rear space BS. The tip of the outer nozzle internal passage N2 is the second discharge port 93c. Both the outlet hole 81b and the introduction hole 91b are located behind the partition portion 93b (towards the rear space BS). The communication hole 92b is located in front of the partition 93b (in front space FS).

[0035] As shown in Figure 4, the nozzle connection portion 52 of the first stem joint 50 is inserted into the insertion space 91a of the first joint connection portion 91 of the nozzle member 70, the nozzle connection portion 52 of the second stem joint 60 is inserted into the insertion space 92a of the second joint connection portion 92 of the nozzle member 70, and the inner nozzle 80 is inserted from behind into the housing space 93a of the outer nozzle 90 to form the two-liquid dispensing member 40. As a result, the two-liquid dispensing member 40 has a first dispensing passage R1 that runs from the stem mounting portion of the first stem joint 50 through the inner nozzle 80 to the first discharge port 81a, and a second dispensing passage R2 that runs from the stem mounting portion of the second stem joint 60 through the space between the inner nozzle 80 and the outer nozzle 90 to the second discharge port 93c. The first dispensing passage R1 and the second dispensing passage R2 are independent of each other, and the contents C1 and C2 do not mix within the two-liquid dispensing member 40.

[0036] Incidentally, the annular passage A1, which is formed by the outer circumferential surface of the inner nozzle 80 and the inner circumferential surface on the rear space BS side of the outer nozzle 90, has its inlet at the introduction hole 91b of the outer nozzle 90 and its outlet at the discharge hole 81b of the inner nozzle 80. The discharge hole 81b is located behind the introduction hole 91b. Therefore, the annular passage A1 functions as a detour that extends the path length toward the axial rear end of the inner nozzle 80. Also, when viewed from the axial direction of the inner nozzle 80, the discharge hole 81b is located offset around the axis of the inner nozzle 80 relative to the introduction hole 91b. Therefore, the annular passage A1 also functions as a detour that extends the path length around the axis of the inner nozzle 80. Note that the direction in which the detour extends refers to the direction of the line connecting the shortest route from the discharge hole 81b to the introduction hole 91b.

[0037] As described above, the two-liquid discharge member 40 is provided with a detour that extends the path length in the first discharge passage R1. Therefore, when the first stem joint 50 is attached to the first stem 12a and the second stem joint 60 is attached to the second stem 22a, the two-liquid discharge member 40 is pushed in, and the first valve 12 and the second valve 22 are opened simultaneously, the first contents C1 are usually discharged later than the second contents C2, and the leading portion of the first contents C1 can be covered by the second contents C2 discharged from the second discharge port 93c.

[0038] If differences in the viscosity of the contents result in differences in flow rate, the length of the detour can be adjusted accordingly. The length of the detour can be adjusted by changing the position of the outlet hole 81b. For example, when viewed from a direction perpendicular to the axial direction of the inner nozzle 80 (e.g., in a plan view), placing the outlet hole 81b further back will increase the length of the detour, while shifting it forward will decrease the length of the detour. Also, when viewed from the axial direction of the inner nozzle 80, the outlet hole 81b is positioned 90 degrees from the inlet hole 91b, but placing it 180 degrees will increase the length of the detour, while reducing the angle to less than 90 degrees will decrease the length of the detour. Furthermore, the length can also be adjusted by changing the outer diameter of the inner nozzle 80. Specifically, increasing the outer diameter of the inner nozzle 80 will increase the length of the detour, while decreasing the outer diameter will decrease the length of the detour. In this way, the length of the detour can be easily adjusted, and even if the type of contents changes, the two contents can be discharged at the intended timing.

[0039] Furthermore, the flow rate of the first contents C1 can be changed by adjusting the diameter of the inlet hole 91b and outlet hole 81b, and the flow rate of the second contents C2 can be changed by adjusting the diameter of the communication hole 92b of the second discharge passage R2, thereby adjusting the timing at which the two contents C1 and C2 are discharged. For example, by delaying the discharge timing of the second contents C2 compared to the first contents C1, the tail portion of the first contents C1 can be covered by the tail portion of the second contents C2, as shown in Figure 5C. Note that the diameter of the holes can be easily changed by replacing the pins in the mold without changing the overall design.

[0040] [Cutting nozzle] As shown in Figure 2, a roughly cylindrical notched nozzle 41 is fitted to the tip of the outer nozzle 90. As shown in Figures 3A to 3C, the notched nozzle 41 has a cylindrical base portion 41a that fits onto the tip of the outer nozzle 90 and a split end portion 41b that extends forward from the base portion 41a.

[0041] The split end 41b is divided into five nozzle pieces 41d by five notches 41c. The notches 41c are roughly rectangular in shape, and projections 41e protrude from the bottom of the notches 41c. The split end 41b gradually narrows in diameter towards the tip, and the vicinity of the tip of each nozzle piece 41d curves outward and convex, converging towards the center, thus forming a roughly hemispherical shape.

[0042] The projection 41e is formed from a cylindrical portion that extends from the base 41a, and does not narrow or curve towards the tip like the tip of the nozzle piece 41d. The projection 41e extends toward the tip with approximately the same width, and then tapers to a roughly triangular shape towards the tip. The height of the projection 41e is approximately half the length of the nozzle piece 41d.

[0043] Since the width of the notch 41c is constant, the area near the tip of each nozzle piece 41d (the curved portion) gradually narrows towards the tip. In this embodiment, the left and right edges of each nozzle piece 41d are roughly arc-shaped, and as shown in Figure 3C, the thickness gradually decreases towards the tip. Also, the shape of the tip of the nozzle piece 41d when viewed from the outside is pointed, exhibiting a roughly V-shape.

[0044] It is preferable that the notches 41c be evenly distributed in 3 to 8 locations. The width of the bottom of the notches 41c is preferably 2 to 8 mm, and the length of the nozzle piece 41d from the bottom to the tip is preferably 4 to 15 mm. Furthermore, the width of the bottom of the projection 41e is preferably 1 to 4 mm, and the length from the bottom to the tip is preferably 2 to 8 mm. The projection 41e is preferably located in the center of the notch 41c, and the width between the notch 41c and the projection 41e is preferably the same. By setting the notched nozzle 41 under these conditions, the width of the folds T of the second discharged product F2, described later, tends to be 2 to 10 mm, and the height of the folds T tends to be 1 to 5 mm. In addition, because the raw liquid G of the second contents C2 has a specific viscosity, the effect of maintaining the three-dimensional shape of the discharged product F by the folds T is easily obtained.

[0045] [How to use] To use the two-component dispensing product 1, point the tip of the notched nozzle 41 towards the object H that will receive the dispensing material F, such as the palm of your hand (see Figure 5C), and then press the operating lever 32. This will dispense the dispensing material F shown in Figures 5A-C. From the inner nozzle 80 in Figure 2, a foamy first content C1 is dispensed to become the first dispensing material F1, and from the cylindrical passage between the outer nozzle 90 and the inner nozzle 80 (outer nozzle inner passage N2), a creamy or gel-like second content C2 is dispensed to become the second dispensing material F2, which surrounds the first content C1 (first dispensing material F1) (see Figures 5B and the left side of Figure 5C). In this state, the dispensing material F forms a three-dimensional object that rises up in a roughly bullet-shaped or pyramidal shape on the object H, as shown in Figure 5C.

[0046] Next, when the first contents C1 foams, the three-dimensional object expands as shown on the right side of Figures 5B and 5C. At this time, the second contents C2 (second extruded product F2) is creamy or gel-like, so it is pushed out by the inner first contents C1 (first extruded product F1). Also, the undiluted solution G of the second contents C2 has a viscosity of 3,000 to 40,000 mPa·s at 20°C, so it suppresses the expansion of the first contents C1 (first extruded product F1) that is trying to expand due to foaming. Thus, the expansion of the first contents C1 (first extruded product F1) due to foaming and the suppression of the expansion of the second contents C2 (second extruded product F2) are balanced, and the three-dimensional shape is maintained.

[0047] Then, the tip of the nozzle piece 41d of the notched nozzle 41 forms multiple grooves U on the surface of the discharged material F, and the spaces between adjacent grooves U remain as folds T. In this embodiment, since a projection 41e is provided between the nozzle pieces 41d, a shallow V-groove Tv is formed along the ridge of the fold T of the second discharged material F2, resembling two ribbons (two lines), which enhances the effect of maintaining the three-dimensional shape by the folds and also presents a more desirable aesthetic appearance. The width of the folds T is preferably 2 to 10 mm, and the height of the folds T is preferably 1 to 5 mm. This makes it easier to obtain the effect of maintaining the three-dimensional shape of the discharged material by the folds T. The width of the folds T is the maximum width between the vertices of the two lines, and the height of the folds T is the maximum height to which the folds rise.

[0048] At this time, due to the foaming and expansion of the first contents C1, the second contents C2 spreads to some extent and thins in each groove U, and the folds T themselves become thicker due to the spread of the second contents. As a result, the folds T become more prominent, and multiple folds T with a specific viscosity surround and support the bullet-shaped first extruded material F1 (foamed first contents), resulting in a structurally stable three-dimensional shape. When the nozzle piece 41d is pulled off from the extruded material F attached to the object H, the end F3 of the extruded material F may become thinner. At that time, the ends of the folds T converge towards the center, taking on a shape like the beams of a dome (Figures 5B and 5C). As a result, an even more stable structure and superior aesthetics are obtained. The extruded material F, which is extruded in a layered state onto an object H such as the palm of the hand, is mixed uniformly with both hands and applied to hair, skin, etc.

[0049] After use, pull the inner nozzle 80 backward to remove it from the outer nozzle 90. Clean the removed inner nozzle 80 as needed. Clean the outer nozzle 90 as needed as well. To use again, simply insert the inner nozzle 80 from behind the outer nozzle 90.

[0050] [Contents] The first contents C1 filled in the first container 10 contain a stock solution and a propellant for discharging the stock solution from the first stem 12a and causing foaming, and are separated into a liquid phase and a gas phase. The second contents C2 filled in the second container 20 contain a stock solution G and a pressurizing agent P for discharging the stock solution G from the second stem 22a, with the stock solution G filled in an inner bag 20a and the pressurizing agent P filled between the container body 21 and the inner bag 20a.

[0051] [First content (first discharged material F1)] The first contents C1 are discharged from the first outlet of the inner nozzle and foam up to form a foam (first discharge F1). During foaming, the outer second discharge F2 is pushed outwards, and the cuts in the cut nozzle form folds in the second discharge F2. The composition of the first contents C1 is not particularly limited as long as it is foamable. For example, the first contents C1 contains a stock solution containing a surfactant and a solvent, and a propellant.

[0052] The surfactant imparts foaming properties to the undiluted solution of the first content C1. Examples of surfactants include nonionic surfactants such as glycerin fatty acid esters, polyglycerin fatty acid esters, sorbitan fatty acid esters, POE sorbitan fatty acid esters, POE fatty acid esters, POE hydrogenated castor oil, POE alkyl ethers, and POE-POP alkyl ethers; anionic surfactants such as fatty acid soaps and alkyl phosphates such as lauryl phosphate; amphoteric surfactants such as cocamidopropyl betaine; cationic surfactants such as alkyltrimethylammonium chloride; silicone-based surfactants such as polyoxyethylene-methylpolysiloxane copolymers; amino acid-based surfactants such as N-acyl glutamate, N-acylglycine salt, and N-acylalanine salt; and natural surfactants such as sodium surfactant.

[0053] The surfactant content is not particularly limited, as long as it is within the range that exhibits the desired foaming effect. For example, the surfactant content is preferably 0.1% by mass or more, and more preferably 0.5% by mass or more, in the undiluted solution. Furthermore, the surfactant content is preferably 25% by mass or less, and more preferably 20% by mass or less, in the undiluted solution. If the surfactant content is less than 0.1% by mass, the first contents C1 will have insufficient foaming properties, making it difficult to expand the outer second discharge F2 from the inside, resulting in insufficient fold formation and poor shape retention of the discharge. On the other hand, if the surfactant content exceeds 25% by mass, the surfactant tends to remain on the application surface, and when used on the skin, it tends to result in a poor user experience.

[0054] Examples of solvents include water such as purified water, deionized water, physiological saline, and deep-sea water; ester oils such as isopropyl myristate, glyceryl tricaprylate, caprylic / capric triglyceride, and glyceryl triisostearate; oils and fats such as avocado oil, camellia oil, corn oil, mink oil, olive oil, rapeseed oil, sesame oil, castor oil, linseed oil, safflower oil, coconut oil, palm oil, and rice salad oil; and hydrocarbon oils such as liquid paraffin, squalene, squalane, and isoparaffin.

[0055] The solvent content is not particularly limited. The solvent dissolves and retains the active ingredients, allowing the desired foaming properties to be achieved. For example, the solvent content is preferably 50% by mass or more, and more preferably 55% by mass or more, in the stock solution. Furthermore, the solvent content is preferably 98% by mass or less, and more preferably 95% by mass or less, in the stock solution. If the solvent content is less than 50% by mass, the first contents C1 will have insufficient foaming properties, making it difficult to expand the outer second discharge F2 from the inside, resulting in insufficient fold formation and making it difficult to obtain shape retention for the discharge F. On the other hand, if the solvent content exceeds 98% by mass, the first contents C1 will have a lower content of surfactants and active ingredients, making it difficult to obtain the desired effect.

[0056] In addition to surfactants and solvents, the stock solution may contain optional components such as monohydric lower alcohols like ethanol, polyhydric alcohols like 1,3-butylene glycol, dipropylene glycol, and glycerin, monosaccharides like sorbitol, water-soluble polymers like polyquaternium-52, hydroxyethylcellulose, and xanthan gum, powders like talc and aluminum starch octenylsuccinate, and active ingredients.

[0057] The active ingredients include oxidation dyes such as paraphenylenediamine, paraphenylenediamine sulfate, para-aminophenol, and meta-aminophenol, and acid dyes such as amaranth (Red No. 2), rose bengal (Red No. 105), tartrazine (Yellow No. 4), fast green (Green No. 3), brilliant blue FCF (Blue No. 1), resorcinol brown (Brown No. 201), naphthol green B (Green No. 401), arizrol purple (Purple No. 401), and naphthol blue black (Black No. 401). Examples include direct dyes such as 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, and 1-amino-4-methylanthraquinone; alkanolamines such as 2-amino-2-methyl-1-propanol, monoethanolamine, and triethanolamine; alkaline agents such as ammonia, potassium hydroxide, and potassium carbonate; stabilizers such as anhydrous sodium sulfite, sodium L-ascorbate, disodium hydrogen phosphate, etidronic acid, and EDTA; humectants; preservatives; and fragrances.

[0058] The content of the undiluted solution is preferably 70% by mass or more, and more preferably 75% by mass or more, in the first contents C1. Furthermore, the content of the undiluted solution is preferably 97% by mass or less, and more preferably 95% by mass or less, in the first contents C1. If the content of the undiluted solution is less than 70% by mass, the first contents C1 tends not to form stable foam, and the discharged product F tends not to obtain a stable three-dimensional shape. On the other hand, if the content of the undiluted solution exceeds 97% by mass, the foaming ability of the first contents C1 becomes insufficient, making it difficult to inflate the outer second discharged product F2 from the inside, resulting in insufficient fold formation, and the shape retention of the discharged product F tends not to be obtained.

[0059] The propellant is not particularly limited as long as it causes the contents to be ejected to the outside and the undiluted liquid to foam. For example, suitable propellants include aliphatic hydrocarbons with 3 to 5 carbon atoms such as n-butane, isobutane, and propane; hydrofluoroolefins such as trans-1,3,3,3-tetrafluoropropa-1-ene; liquefied gases such as dimethyl ether and mixtures thereof.

[0060] The propellant content (e.g., liquefied gas) is preferably 3% by mass or more, and more preferably 5% by mass or more, in the first contents C1. Furthermore, the propellant content is preferably 30% by mass or less, and more preferably 25% by mass or less, in the first contents C1. If the propellant content is less than 3% by mass, the first contents C1 will have insufficient foaming properties, making it difficult to inflate the outer second discharge F2 from the inside, resulting in insufficient fold formation and difficulty in obtaining shape retention of the discharge. On the other hand, if the propellant content exceeds 30% by mass, the first contents C1 will have difficulty forming stable bubbles, and the discharge F will have difficulty obtaining a stable three-dimensional shape.

[0061] [Second content (second discharged material F2)] The second contents C2 filled in the second container 20 contain a stock solution G and a pressurizing agent P for discharging the stock solution from the second stem 22a. The stock solution G is filled in the inner bag 20a, and the pressurizing agent P is filled in the space between the container body 21 and the inner bag 20a. The second contents C2, with the stock solution G being discharged as a second discharge product F2 from the second discharge port 93c between the inner nozzle 80 and the outer nozzle 90, covers the periphery of the inner first discharge product F1, forming multiple folds T on its surface and maintaining the three-dimensional shape of the discharge product F.

[0062] The raw solution G of the second content C2 is in a creamy or gel-like state and has a viscosity of 3,000 to 40,000 mPa·s, preferably 5,000 to 35,000 mPa·s, at 20°C. If the viscosity of the raw solution G is less than 3,000 mPa·s, folds T are difficult to form, the shape-retaining effect by the folds T is insufficient, and the effect of maintaining the three-dimensional shape of the discharged product F tends to be difficult to obtain. On the other hand, if the viscosity of the raw solution G exceeds 40,000 mPa·s, the second content C2 tends to be difficult to discharge.

[0063] [If it is a creamy consistency] The composition of the undiluted solution of the second content C2 is not particularly limited. For example, if the undiluted solution is in the form of a cream, it mainly contains surfactants, oils, water, etc.

[0064] Examples of surfactants include nonionic surfactants such as glycerin fatty acid esters like glyceryl stearate, polyglycerin fatty acid esters, sorbitan fatty acid esters, POE sorbitan fatty acid esters, POE fatty acid esters, POE hydrogenated castor oil, POE alkyl ethers, and POE-POP alkyl ethers; saponified products of fatty acids such as stearic acid and alkaline agents such as sodium hydroxide (fatty acid soaps); anionic surfactants such as alkyl phosphates, alkyl sulfates, and POE alkyl ether sulfates; amphoteric surfactants such as lauryl betaine; cationic surfactants such as alkyltrimethylammonium chloride; silicone-based surfactants such as polyoxyethylene-methylpolysiloxane copolymers; amino acid-based surfactants such as cocoyl glutamate, N-acyl glutamate, N-acylglycine salt, and N-acylalanine salt; and natural surfactants such as sodium surfactant.

[0065] The surfactant content is not particularly limited. For example, the surfactant content is preferably 1% by mass or more, and more preferably 5% by mass or more, in the undiluted solution. Furthermore, the surfactant content is preferably 25% by mass or less, and more preferably 20% by mass or less, in the undiluted solution. If the surfactant content is less than 1% by mass, the second content C2 tends to become unstable in emulsification and it is difficult to form a stable cream. On the other hand, if the surfactant content exceeds 25% by mass, the second content C2 tends to remain on the application surface and tends to cause strong irritation when used on the skin.

[0066] Examples of oils include liquid oils such as hydrocarbon oils, ester oils, silicone oils, and fats and oils; higher alcohols such as cetanol; and solid oils such as waxes.

[0067] The oil content is not particularly limited. For example, the oil content is preferably 1% by mass or more, and more preferably 1.3% by mass or more, in the undiluted solution. Furthermore, the oil content is preferably 20% by mass or less, and more preferably 15% by mass or less, in the undiluted solution. When the oil content is less than 1% by mass, the second content C2 tends to have low cream viscosity and it is difficult to form a stable cream. On the other hand, when the oil content exceeds 20% by mass, the resulting extruded product tends to have reduced foaming persistence.

[0068] Examples of water include purified water, deionized water, physiological saline, and deep-sea water. The water content is not particularly limited. For example, the water content is preferably 50% by mass or more, and more preferably 55% by mass or more, in the stock solution. Furthermore, the water content is preferably 90% by mass or less, and more preferably 85% by mass or less, in the stock solution. If the water content is less than 50% by mass, the second content C2 tends to harden, making it difficult for the first content C1 to expand from the inside and making it difficult to form folds. On the other hand, if the water content exceeds 90% by mass, the second content C2 tends to have low viscosity and is difficult to form into a stable cream.

[0069] In addition to surfactants, water, and oils, the undiluted solution G of the second contents C2 may contain optional components such as monohydric lower alcohols like ethanol, polyhydric alcohols like 1,3-butylene glycol, dipropylene glycol, and glycerin, monosaccharides like sorbitol, water-soluble polymers like polyquaternium-52, hydroxyethylcellulose, and xanthan gum, powders like talc and aluminum starch octenylsuccinate, and active ingredients.

[0070] Examples of active ingredients include oxidizing agents such as hydrogen peroxide, oxidizing aids such as ammonium persulfate and potassium persulfate, humectants, preservatives, and fragrances.

[0071] Furthermore, a dye may be added to the undiluted solution of the second content C2. This allows for a color difference between the second content C2 and the foam of the first content C1 inside, thereby improving the aesthetic appearance. Also, the degree of expansion in response to the expansion of the first content C1 differs between the folded and non-folded parts of the surface of the second content C2. The folded parts, which do not expand as much, will be darker in color, while the parts in between, which expand more easily, will be lighter in color. Therefore, an aesthetically pleasing gradient can be enjoyed.

[0072] The pigments include Amaranth (Red No. 2), Erythrosine (Red No. 3), New Coccine (Red No. 102), Rose Bengal (Red No. 105), Acid Red (Red No. 106), Rose Bengal K (Red No. 232), Violamin R (Red No. 401), Resorcinol Brown (Brown No. 201), Orange I (Orange No. 402), Orange II (Orange No. 205), Tartrazine (Yellow No. 4), and Sunset Yellow. Examples include Yellow No. 5, Uranine (Yellow No. 202), Quinoline Yellow WS (Yellow No. 203), Naphthol Yellow S (Yellow No. 403), Fast Green (Green No. 3), Alizarin Cyanine Green F (Green No. 201), Pyranine Concentrate (Green No. 204), Naphthol Green B (Green No. 401), Brilliant Blue FCF (Blue No. 1), Indigo Carmine (Blue No. 2), Patent Blue (Blue No. 203), etc.

[0073] [In the case of a gel] Furthermore, if the stock solution G of the second content C2 is in gel form, the stock solution G mainly contains water-soluble polymers and water. Examples of water-soluble polymers include cellulosic polymers such as hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose; gums such as xanthan gum, carrageenan, acacia gum, tragacanth gum, cationized guar gum, guar gum, gellan gum, and locust bean gum; dextran, carboxymethyl dextran sodium, dextrin, gelatin, pectin, starch, corn starch, wheat starch, sodium alginate, modified potato starch, carboxyvinyl polymer, and polyacrylate crosspolymer.

[0074] When a water-soluble polymer is included, its content is preferably 0.01% by mass or more, and more preferably 0.03% by mass or more, in the stock solution. Furthermore, the water-soluble polymer is preferably 5% by mass or less, and more preferably 3% by mass or less, in the stock solution. If the content of the water-soluble polymer is less than 0.01% by mass, the effect of adjusting the viscosity of the second content C2 tends to be less obtained. On the other hand, if the content of the water-soluble polymer exceeds 5% by mass, the viscosity of the second content C2 becomes too high, and the second content C2 tends to have difficulty following the expansion accompanying the foaming of the first content C1, making it difficult to form folds.

[0075] Examples of water include purified water, deionized water, physiological saline, and deep-sea water. The water content is not particularly limited. For example, the water content is preferably 70% by mass or more, and more preferably 80% by mass or more, in the stock solution. Furthermore, the water content is preferably 99.5% by mass or less, and more preferably 99% by mass or less, in the stock solution. If the water content is less than 70% by mass, the second content C2 tends to have difficulty forming a stable gel, and the shape-retaining effect due to folds tends to be difficult to obtain. On the other hand, if the water content exceeds 99.5% by mass, the second content C2 tends to have a low content of active ingredients, and the desired effect tends to be difficult to obtain.

[0076] The undiluted solution G of the second content C2 may contain, in addition to water-soluble polymers and water, monohydric lower alcohols such as ethanol, polyhydric alcohols such as 1,3-butylene glycol, propylene glycol, and glycerin, monosaccharides such as sorbitol, water-soluble polymers such as polyquaternium-52, hydroxyethylcellulose, and xanthan gum, oils such as ester oils and silicone oils, powders such as talc and aluminum starch octenylsuccinate, optional components such as active ingredients, and the aforementioned dyes.

[0077] The undiluted liquid G of the second contents C2 is filled into the inner bag 20a of the second container 20. The filled undiluted liquid G is discharged to the outside by a pressurizing agent P that is filled in the space between the container body 21 and the inner bag 20a of the second container 20.

[0078] Examples of pressurizing agent P include compressed gases such as nitrogen, carbon dioxide, and compressed air. It is preferable to adjust the pressure in the second container at 25°C to 0.4 to 1.0 MPa using the compressed gas, and more preferably to 0.5 to 0.8 MPa.

[0079] The stock solutions for the first content C1 and the second content C2 can be two-part reactive stock solutions that exert their effects through mutual reaction. Examples include two-part warming preparations, two-part heat-generating preparations, two-part cooling preparations, two-part gelling agents, two-part film-forming agents, two-part adhesives, two-part hair dyes, and two-part perming agents. However, it is not limited to two-part reactive solutions; solutions that exert at least two effects are also acceptable, such as sunscreen and antiperspirant, sunscreen and insect repellent, hand sanitizer and moisturizer, foundation and antiperspirant, or cosmetic coating agent and antiperspirant. In any case, one stock solution is filled into the first container, and the other stock solution is filled into the second container.

[0080] Although embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be implemented with various modifications within the scope of the present invention. For example, the cover member 30 may not have an operating lever, and the outer nozzle of the two-liquid discharge member 40 may be operated directly with a finger. Alternatively, the cover member 30 may be composed of two members: a shoulder cover consisting of a fixed cylinder 30a and a connecting part 30b, and a cover part 30c attached to the shoulder cover.

[0081] In the above embodiment, the first stem 12a and the second stem 22a are operated simultaneously by the operating lever 32, but the height of the pressing projection 31 may be changed so that one is operated later than the other. Also, in Figures 5A to C, the discharged material F is shown in an upright position, which occurs when the cutting nozzle 41 is pulled upwards. If the discharge is performed while moving the cutting nozzle 41 sideways, the discharged material will be discharged lying on the palm of a hand or the like.

[0082] In the notched nozzle 41 shown in Figures 2 and 3A-C, the notch 41c has a constant width and is rectangular in side view. However, a trapezoidal notch 41c that widens somewhat towards the tip may be used, as in the notched nozzle 41A used in the nozzle member 70A in Figure 6A (see side view in Figure 6B). Furthermore, the projection 41e within the notch 41c can be omitted. Two projections 41e can also be provided within the notch 41c, and the pleats T can be made into three linear lines.

[0083] In the two-component dispensing product 1 shown in Figures 1 and 4, the space between the inner nozzle 80 and the outer nozzle 90 is divided into a rear space BS and a front space FS by a partition 93b. The first contents C1 from the first stem 12a are directed through the rear space BS to the passage inside the inner nozzle 80 (inner nozzle passage N1), while the second contents C2 from the second stem 22a are directed to the front space FS. This configuration does not share parts with a typical two-component dispensing product equipped with a parallel spout that directs the first contents C1 and the second contents C2 forward in parallel, and requires dedicated parts.

[0084] [Conversion Unit] The two-liquid dispensing product 1A shown in Figure 7 is a conventional parallel-dispensing type two-liquid dispensing product 3 equipped with a parallel spout 62, which can be converted from a parallel flow of the first contents C1 and the second contents C2 to a concentric double flow simply by attaching a conversion unit 63. Specifically, the conversion unit 63 is equipped with a parallel section (spout connection section 63a, left passage T1, and right passage T2, described later) that allows the first and second contents to flow forward in parallel, and a conversion section (partition wall 63c, small hole 63c1, and opening 63c2, described later) that converts the first and second contents, which come out side by side from the parallel section, into a concentric flow in the passage N1 inside the inner nozzle and the passage N2 in the gap between the inner nozzle and the outer nozzle, respectively. By attaching a notched nozzle 41 to the tip of the conversion unit 63, it is possible to dispense two liquids in a state where the first contents C1 is surrounded by the second contents C2. The two-liquid dispensing product 1A will be described in detail below with reference to Figures 7 to 9.

[0085] As shown in Figures 7 and 8B, the two-liquid dispensing product 1A comprises a first container 10, a second container 20, a push button 61 mounted so as to straddle the stems 12a and 22a of valves 12 and 22 provided on these containers (first container 10 and second container 20), and a cover member 30 that integrally fixes both containers. The push button 61 comprises a main body portion 61a extending to the left and right, stem mounting portions (stem joints) 61b protruding downward from both ends of the main body portion 61a, and parallel spouts 62 protruding forward from the front surface of the main body portion 61a. An operating lever (see reference numeral 32 in Figure 1) for pressing the push button 61 may be provided on the cover member 30 or the like.

[0086] The stem mounting portion 61b is roughly cylindrical, and a vertical passage 61d extending vertically is formed inside. The inside of the main body portion 61a is a cavity K, and a central partition wall 61e is provided in the center of the cavity K, dividing it into left and right sections. The cavity K1 on the left side of the central partition wall 61e is a passage for the first contents C1, and the cavity K2 on the right side is a passage for the second contents C2. The parallel spout 62 has a roughly oval-shaped cross-section, as shown by the dashed lines in Figure 8B, and the aforementioned central partition wall 61e also divides the inside of the spout 61c into left and right sections. The tip of the central partition wall 61e is recessed somewhat from the tip of the parallel spout 62. In this embodiment, in order to form the cavity K, the vertical passage 61d inside the stem mounting portion 61b, and the central partition wall 61e, the push button 61 is molded in upper and lower sections and then joined together after molding.

[0087] With this configuration, the inside of the push button 61 is divided into a first channel R1a through which the first contents C1 discharged from the first stem 12a flows, and a second channel R2a through which the second contents C2 discharged from the second stem 22a flows. Therefore, the first contents C1 and the second contents C2 do not come into contact with each other inside the push button 61.

[0088] As shown in detail in Figure 9B, the conversion unit 63 is a cylindrical member equipped with a spout connection portion 63a for connecting to the parallel spout 62 and a nozzle connection portion 63b for connecting to the cutting nozzle 41. The spout connection portion 63a has a roughly oval cross-section, and the nozzle connection portion 63b has a roughly circular cross-section. The internal space of the spout connection portion 63a and the internal space of the nozzle connection portion 63b are separated, with some exceptions, by a partition wall 63c perpendicular to the axis.

[0089] Furthermore, the interior of the spout connection section 63a is divided by a central wall 63d extending in the axial direction into a left passage T1 through which the first contents C1 flows and a right passage T2 through which the second contents C2 flows. In other words, the spout connection section 63a, the left passage T1 and the right passage T2 constitute the parallel section of the conversion unit 63. As shown in Figure 9d, an oval-shaped fitting groove 63f is formed in the peripheral wall 63e, which fits into the discharge port of the parallel spout 62. Furthermore, a central groove 63g is formed along the center of the central wall 63d, which fits into the central partition wall 61e of the parallel spout 62.

[0090] On the other hand, the nozzle connection section 63b has a double nozzle structure in which an inner nozzle 80 and an outer nozzle 90 are combined concentrically with a gap (outer nozzle inner passage) N2 between them. The passage inside the inner nozzle 80 (inner nozzle inner passage) N1 is a passage for the first contents C1, and the passage between the outer nozzle 90 and the inner nozzle 80 (outer nozzle inner passage) N2 is a passage for the second contents C2. The left passage T1 of the spout connection section 63a and the inner nozzle inner passage N1 are connected by a circular small hole 63c1 formed in the partition wall 63c, and the right passage T2 and the outer nozzle inner passage N2 are connected by a semicircular opening 63c2 formed in the partition wall 63c. Therefore, the partition wall 63c, the small hole 63c1, and the opening 63c2 are conversion sections that convert the parallel flow of the first contents C1 and the second contents C2 into a concentric double flow.

[0091] As shown in Figure 9A, the conversion unit 63 configured as described above becomes a two-liquid dispensing product 1A as shown in Figure 7 by attaching the spout connection part 63a to the tip of the parallel spout 62 and attaching the base part 41a of the notched nozzle 41 shown in Figures 3A-C to the nozzle connection part 63b.

[0092] This two-component dispensing product 1A can be used in substantially the same way as the two-component dispensing product 1 in Figure 1. That is, the two components that react and exert their effect when mixed, such as a two-component hair dye, can be safely stored in the first container 10 and the second container 20, respectively. When the user presses down the push button 61, the first contents C1 and the second contents C2 are dispensed in parallel from the tip opening of the parallel spout 62. In the conventional two-component dispensing product 3, the user dispenses the two components in this way onto their palm or a comb and mixes them before applying them to their hair.

[0093] In the two-liquid discharge product 1A shown in Figure 7, the first and second discharges, which are arranged in parallel and exiting from the parallel spout 62, flow into the inner nozzle passage N1 and the outer nozzle passage N2, respectively, via the circular small hole 63c1 and the approximately semicircular opening 63c2 of the partition wall 63c of the conversion unit 63. This creates a concentric double flow in which the second discharge F2 surrounds the first discharge F1 in the center, and the cut nozzle 41 further forms the discharge into a predetermined three-dimensional shape (see symbol F in Figure 5).

[0094] In the conversion unit 63A shown in Figures 10A and 10B, a rectangular baffle plate 63h is provided at a distance from the partition wall 63c on the downstream side (lower side in the figure) of the approximately semicircular opening 63c2 in the passage connecting the right passage T2 and the outer nozzle inner passage N2 in the conversion unit 63 of Figure 9. In this conversion unit 63A, the second contents C2 coming out of the opening 63c2 are prevented from moving in a straight line by the baffle plate 63h and spread in the circumferential direction along the cylindrical outer nozzle passage N2. As a result, even if the nozzle connection part 63b is short, the second contents C2 flows almost uniformly axially forward along the cylindrical outer nozzle passage N2. In this embodiment, as can be seen from Figure 10B, the width of the baffle plate 63h is made somewhat smaller than the width of the opening 63c2.

[0095] Figures 11A and 11B show a combined conversion / cutting nozzle 64, which integrates the conversion unit (conversion section) 63A from Figure 10 with the cutting nozzle 41 from Figures 3A-C. Although the molding process becomes more complex, the number of parts can be reduced.

[0096] In the two-component dispensing products shown in Figures 1 and 7, the first and second contents are placed in separate container bodies 11 and 21. However, as shown in the two-component dispensing product 1B in Figure 12, the second contents C2 can be placed in an inner container such as an inner bag 10a (pouch), and then placed together with the first contents C1 in a single container body 11A. The inner container is attached to one valve 22, and a dip tube 12b is attached to the other valve 12.

[0097] The container body 11A serves as both the container body for the first container and the container body for the second container, and the first contents C1 (undiluted liquid and propellant) are directly filled inside the container body 11A. The pressure of this propellant allows the second contents C2 to be discharged. The valves 12, 22 and stems 12a, 22a are substantially the same as those of the two-liquid dispensing product 1 in Figure 1, and the push button 61 and parallel spout 62 are substantially the same as those in Figures 8A and 8B. The method of using this two-liquid dispensing product 1B is the same as that of the two-liquid dispensing product 1 in Figure 1. [Examples]

[0098] The stock solution 1 of the first contents shown in Table 1 was prepared, and 46 g (92% by mass) of the stock solution was filled into the inner bag of the first container. Next, a valve was attached to the opening, and 4 g (8% by mass) of liquefied petroleum gas was filled through the valve as a propellant to manufacture the first aerosol product.

[0099] [Table 1]

[0100] The stock solution of the second contents shown in Table 2 was prepared, and 40 g of the stock solution was filled into the inner bag of the second container. Next, nitrogen was filled as a pressurizing agent into the space between the container body and the inner bag, and a valve was fixed to the opening to manufacture the second aerosol product. The pressure of the second aerosol product at 25°C was 0.75 MPa in all cases. The viscosity of the stock solution at 20°C is shown in Table 3.

[0101] [Table 2]

[0102] [Examples 1-7], [Comparative Examples 1-2] A two-component dispensing product 1 was manufactured by combining the first aerosol product and the second aerosol product shown in Table 3 and attaching the two-component dispensing member 40 shown in Figure 1. The notched nozzle (reference numeral 41 in Figure 3A) of the two-component dispensing member 40 has an outer diameter of 11.2 mm at the base 41a and a total length of 14.5 mm, with five notches 41c. The width at the bottom of the notches 41c was 3.6 mm, and the length from the bottom to the tip of the nozzle piece 41d was 8 mm. The width at the bottom of the projection 41e was 1.8 mm, and the length from the bottom to the tip was 4.2 mm.

[0103] [Table 3]

[0104] The resulting two-component dispensed product was immersed in a 25°C constant temperature water bath for 30 minutes, and then dispensed by pressing the operating lever with the nozzle pointed towards the palm of the hand. The condition of the dispensed product was evaluated for the following items. The results are shown in Table 4.

[0105] 1. Moldability of the extruded material The external shape of the ejected material was evaluated. ◎: As shown in Figure 5A, it takes on a three-dimensional shape, with two linear folds formed in five places without interruption. 〇1: It took on a three-dimensional shape, and although partially interrupted, two linear folds were formed in five places. 2: It took on a three-dimensional shape, and five linear "folds" were formed in different places. ×1: The second contents were not ejected, and no "folds" were formed. ×2: The "folds" were not clearly defined.

[0106] 2. Width and height of the pleats The maximum width and height of the pleats were measured. "-" indicates that the pleat was a single linear shape and therefore could not be measured; "×1" indicates that no pleat was formed and therefore could not be measured; and "×2" indicates that the pleat was not clearly defined and therefore could not be measured.

[0107] 3. Retention time The time it took for the extruded material to maintain its three-dimensional shape on the palm of the hand was evaluated. ◎: Held for 60 seconds or more. I held it for 30-60 seconds. ×: It began to collapse in less than 30 seconds.

[0108] 4.Mixability The state of the extruded material after mixing it in the palm of the hand was evaluated. ○: It was possible to mix it smoothly and almost uniformly. ×: Mixing was not possible because the second contents were not dispensed.

[0109] [Table 4] [Explanation of Symbols]

[0110] 1, 1A, 1B 2-liquid discharge products 2 2-liquid discharge container 3. Conventional two-component dispensing products 10 1st container 10a Inner bag 11, 11A Container body 12. First valve 12a First stem 12b Dip Tube 20 Second container 20a Inner bag 21 Container body 22 Second valve 22a Second stem 30 Cover component 30a fixed tube 30b Connecting part 30c Cover 31 Pressing projection 32 Operating levers 33 Fixed part 40, 40A, 40B Two-liquid dispensing member 41 Cutting nozzle 41a base 41b Split tip 41c cut 41d Nozzle piece 41e protrusion 50 First Stem Joint 51 Base 52 Nozzle connection section (Figure 4, stem joint) J1 Joint Inner Passageway 60. Second stem joint 61 Push Buttons 61a Main body 61b Stem mounting section 61d Vertical passage 61e central bulkhead 62 Parallel Spouts 63 Conversion Unit 63A Conversion Unit 63a Spout connection 63b Nozzle connection section (Figure 9A, conversion unit) 63c Bulkhead 63c1 small hole 63c2 Semicircular opening 63d Central wall T1 left aisle T2 Right Aisle 63e Surrounding wall 63f Fitting groove 63g Center groove 63h Obstacle board K cavity K1 Left cavity K2 Right cavity 64 Conversion / Integrated Nozzle 70 Nozzle component 80 Inner nozzle 81 Inner cylinder N1 Internal nozzle internal passage 81a 1st discharge port 81b Outlet hole 82 Flange section 90 Outer Nozzle 91 First joint connection 91a Insertion space 91b Introduction hole 92 Second joint connection 92a Insertion space 92b Communication hole 93 Outer cylinder 93a Containment space 93b Partition 93c 2nd outlet FS anterior space BS Rear space N2 Outer nozzle inner passage A1 Circular Passage R1 1st discharge passage R2 2nd discharge passage R1a 1st channel R2a Second channel C1 1st contents C2 2nd contents G. Undiluted liquid, second contents. P pressurizing agent AL axis F Discharge F1 1st ejected material F2 2nd discharge F3 End of discharge T-shaped fold (protrusion) Tv V groove U-groove H Object 70A Nozzle component

Claims

1. A first container having a first stem, The first contents, which are effervescent, are filled in the first container. A second container having a second stem, The second contents include a creamy or gel-like stock solution, which is filled in the second container and has a viscosity of 3,000 to 40,000 mPa·s at 20°C, It consists of a two-liquid dispensing member attached to the first stem and the second stem, The two-liquid dispensing member is An inner nozzle for discharging a first contents, and an outer nozzle for discharging a second contents so as to surround the discharged first contents, It consists of a notched nozzle, which is provided at the tip of the outer nozzle and has multiple notches near the tip, with the inner surface gradually tapering towards the tip. The dispensed product is a two-component product in which multiple folds of the second component are formed around the first component.

2. The two-component dispensing product according to claim 1, wherein the notch of the notched nozzle is rectangular or trapezoidal, and a projection protrudes from the bottom of the notch toward the tip of the nozzle.

3. The two-liquid dispensing product according to claim 1, wherein the second contents exhibit a darker color than the first contents.

4. The first contents contain a stock solution containing a surfactant and a solvent, and a propellant. The two-component dispensing product according to claim 1, 2, or 3, wherein the second component contains a creamy stock solution comprising a surfactant, an oil, and water, and a pressurizing agent.

5. The first contents contain a stock solution containing a surfactant and a solvent, and a propellant. The two-component dispensing product according to claim 1, 2, or 3, wherein the second component contains a gel-like stock solution containing a water-soluble polymer and water, and a pressurizing agent.

6. The two-liquid dispensing product according to claim 1, comprising: a parallel section that directs the first and second contents coming out of the first and second stems forward in parallel; and a conversion section that directs the first and second contents coming out side by side from the parallel section concentrically through the passage inside the inner nozzle and the passage in the gap between the inner nozzle and the outer nozzle, respectively.

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