JP6887236B2 - Discharge container - Google Patents

Description

The present invention relates to a discharge container in which a plurality of pouches are housed in an outer container.

Patent Document 1 discloses a double aerosol container including two inner containers (pouches), an outer container for accommodating these inner containers, and a valve assembly for closing the opening of the outer container. In this double aerosol container, each pouch is filled with the undiluted solution and a pressurizing agent is filled between the outer container and the pouch, so that the pouch is compressed by the pressure of the pressurizing agent, and the undiluted solution in the pouch (contents). It is configured so that each object) can be discharged to the outside.

The pouch is formed by joining the peripheral edges of two seats into a bag shape, and a tubular connecting member for connecting the valve housing and the pouch is interposed between the upper ends. Then, the dip tube is connected to the connecting member. Further, in Patent Document 1, when the contents are used up, the front surface and the back surface of the pouch are brought into close contact with each other so that the unevenness formed on the surface of the dip tube can be seen from the outside through the pouch to reduce the remaining amount. I am trying to confirm it.

In the case of a dip tube, if the pouch is bent in the middle, the contents on the upper side may remain from the broken part and may not be discharged. Also, if the lower end opening of the dip tube is blocked, it cannot be discharged. Patent Document 2 describes that instead of the dip tube, a flow path member having a large number of irregularities formed on the surface is used.

Patent Document 3 discloses a technique in which when the pouch is inflated, the pouch is fixed by pressing the inner surface of the outer container to improve durability against vibration and the like. Patent Document 4 discloses a pouch in which a partition wall (middle sheet) is provided in one pouch so that two liquids can be filled, and a gusset is provided in an outer sheet (upper sheet, lower sheet) to provide a capacity. (See paragraph [0042]).

Japanese Unexamined Patent Publication No. 2013-82478 JP-A-2015-58980 Japanese Unexamined Patent Publication No. 2013-230852 Japanese Unexamined Patent Publication No. 2012-106789

In the above-mentioned pouch-type two-liquid discharge container, when the pouch is filled with the contents, the pouches interfere with each other as the pouch expands, especially the central portion that swells round, and the lower side of the connecting member and the flow path member is outside. Try to spread in the direction. Since the upper part of the flow path member is connected to the valve, the lower part of the flow path member easily bends outward, which causes problems such as deformation of the flow path member and damage to the pouch. In addition, the side surface of the body of the pouch (the part where the two sheets are bonded together) is easily bent inward. As a result, it becomes difficult to evenly discharge the two contents. It can be solved by enlarging the outer container and widening the distance between the two valves, but the valve becomes large, which makes it difficult to seal and makes it difficult to grip, so that the operability tends to deteriorate. Even if the outer container is made larger, it is efficient to use a common part for the valve holder that accommodates the two valves, and it is difficult to take measures to widen the distance between the valves.

Therefore, the present invention relates to a two-pouch type two-liquid discharge container provided with a flow path member, and controls the shape in which the pouch swells when the content (stock solution) is filled, so that the flow path member is deformed or the pouch is damaged. It is an object of the present invention to provide a discharge container capable of stably discharging two undiluted solutions.

The discharge container of the present invention is connected to an outer container 10 having an opening (mouth portion 10f) at the top, two pouches 20A and 20B housed in the outer container 10 and arranged in parallel, and the respective pouches 20A and 20B. A discharge container provided with a valve assembly 30 attached to the opening of the outer container 10, wherein the pouches 20A and 20B are a flat bag-shaped bag body made of a flexible sheet and a bag body. It is composed of a rod-shaped flow path member that secures a flow path when the contents are reduced and the bag body is in close contact with the bag body, and the bag body is a surface portion 21a facing the surface side of the outer container 10. The back surface portion 21b facing the center side and the gusset portions 21c, 21d, 21j, 21k interposed between the upper, lower, left, and right edges of the front surface portion and the back surface portion are provided. It is a feature.

In such a discharge container, it is preferable that the gussets 21c, 21d, 21j are made of a sheet folded in a V shape toward the center side of the pouch. In that case, of the left and right edge edges of the front surface portion 21a and the back surface portion 21b, those having side folds 21c and 21d provided between at least one edge are preferable. Further, the lower ends of the front surface portion 21a and the back surface portion 21b on the side where the side folds are located are formed diagonally, and the lower ends of the side folds 21c and 21d are joined along the diagonally formed edges. Is preferable. Further, it is preferable that the bottom fold portion 21j is provided between the lower ends of the front surface portion 21a and the back surface portion 21b.

In any of the discharge containers, the upper gusset portion 21k is interposed between the upper end edges of the front surface portion 21a and the back surface portion 21b, and an opening 21m is formed in the upper gusset portion 21k, and the above-mentioned It is preferable that the flow path member 22 is provided with a flange 23c to be joined to the peripheral edge of the opening.

The discharge container of the present invention is provided with a gusset between the upper, lower, left and right edges of the front surface portion and the back surface portion of the bag body, and controls the shape in which the bag body swells when the contents are filled. That is, the expansion of the front surface portion and the back surface portion is suppressed by the gusset portion between the edge portions, and the pouches swell in a substantially rectangular shape or a triangular shape in the horizontal cross section, so that the range in which the pouches are pressed against each other is widened. Therefore, compared to the conventional discharge container in which the central portions that bulge round in the tubular outer container are pressed against each other, the force to expand is suppressed, and the deformation of the flow path member and the damage of the pouch are suppressed. To.

When the gusset is composed of a sheet folded in a V shape toward the center side of the pouch, it can be folded flat, so that the remaining amount after use can be reduced and the pouch is removed at the time of assembly. Easy to insert into a container.

When a side fold is provided between at least one of the left and right edge edges of the front surface portion and the back surface portion, the surface portion and the front surface portion and the side fold portion expand in the direction of the side fold when the contents are filled. Since the back surface portion swells so as to be separated from each other, the horizontal cross section tends to be substantially rectangular, and the flow path member is less deformed by pressing the pouches against each other. In addition, the left and right edges (bonded parts) of the front surface and the back surface are less likely to bend, and each content can be stably discharged to the end, and the ratio of the discharge amounts of the two contents is also stable. .. Further, since the strength in the axial direction is increased by the side fold, the valve assembly can be stably held when the pressurizing agent described later is filled in the undercup.

Further, when the lower end of the front surface portion and the back surface portion on the side where the side gusset portion is located is formed diagonally and the lower end portion of the side fold portion is joined along the diagonally formed edge portion, it is manufactured. Sometimes it is easy to put the pouch in the outer container, and when the contents are discharged and the pouch shrinks, it is easy to return to the original shape, so the remaining amount is small.

If a bottom gusset is provided between the lower ends of the front surface and the back surface, the bottom gusset expands downward when the contents are filled, so that the front surface and the back surface are deformed from the bottom to the center. It is suppressed. Therefore, deformation and breakage of the flow path member can be further suppressed. Furthermore, since the center of gravity is low, it is difficult to fall.

An upper gusset portion is interposed between the upper end edge of the front surface portion and the back surface portion, an opening is formed in the upper gusset portion, and the flow path member is provided with a flange to be joined to the peripheral edge of the opening. In this case, since the upper flange is interposed between the flow path member and the front surface portion or the back surface portion, even when an outward force is applied to the pouch due to interference between the pouches, the influence on the flow path member is exerted. Few. Therefore, the flow path member is protected.

It is sectional drawing which shows one Embodiment of the discharge container of this invention, (a) is the front sectional view, (b) is the X-ray sectional view of (a). The pouch is shown, (a) is a front view, (b) is a side view, and (c) is a side view at the time of expansion. It is a perspective view which shows the state before joining of a bag body. The contraction and expansion of the bag body are shown in comparison, (a) and (b) are plan sectional views of the body of the discharge container during contraction and expansion, and (c) is a plan view of the body of the discharge container during contraction and expansion. It is a perspective view which shows in comparison at the time of expansion. It is an enlarged view of the main part of FIG. 1b. It is a front view which shows the state before joining of another embodiment of a bag body. Other embodiments of the pouch are shown, (a) is a front view, (b) is a side view, (c) is a side view when inflated, and (d) is a bottom view. Yet another embodiment of the pouch is shown, where (a) is a front view, (b) is a side view, and (c) is a side view when inflated. The bag body of the pouch of FIG. 8 is shown, (a), (b), and (c) are front views of the front seat before joining, the bottom sheet and the top sheet, and (d) is a perspective view of a main part in a joined state. ..

Next, the discharge container (aerosol container) 1 of the present invention will be described with reference to the drawings. First, an outline of the discharge container 1 of the present invention will be described. As shown in FIGS. 1a and 1b, an outer container 10 having an opening at the top and first and second pouches 20A and 20B housed in the outer container 10 are described. The valve assembly 30 is connected to the pouches 20A and 20B, respectively, and is attached to the opening of the outer container 10. Then, the first and second pouches 20A and 20B are filled with the first stock solution C1 and the second stock solution C2, respectively, and the space between the outer container 10 and the pouches 20A and 20B is filled with the pressurizing agent P. Then, a discharge product capable of discharging the respective stock solutions C1 and C2 is manufactured. Hereinafter, each component will be specifically described.

First, the outer container 10 will be described. As shown in FIGS. 1a and 1b, the outer container 10 has a cylindrical body portion 10b whose lower end is closed by a bottom portion 10a and an upper end portion of the body portion 10b upward. A dome-shaped shoulder portion 10c provided so as to reduce the diameter, a cylindrical neck portion 10d provided at the upper end of the shoulder portion 10c, a flange 10e formed in an annular shape at the upper end of the neck portion 10d, a neck portion 10d and a flange. It is provided with a mouth portion 10f that opens on the inner peripheral side of the 10e. The outer container 10 is made of a synthetic resin such as polyethylene terephthalate (PET), and can be manufactured by biaxial stretching blow molding or injection molding.

If a transparent container or a translucent container is used as the outer container 10, the states of the first and second pouches 20A and 20B can be grasped from the outside. The same applies when it is made of glass. Therefore, it is possible to know how much the undiluted solutions C1 and C2 remain in the first and second pouches 20A and 20B, which serves as a guideline for replacement time. Further, the outer container 10 has a so-called petaloid shape in which five legs 10h are arranged downward at equal intervals in the circumferential direction in order to ensure pressure resistance, and the body as a whole has a body. The diameter is reduced from the portion 10b to the bottom portion 10a. The material of the outer container 10 is not limited to PET, and various known synthetic resins such as nylon and polypropylene can be used.

As shown in FIG. 1b, the first pouch 20A and the second pouch 20B are housed in the outer container 10 in parallel. These pouches are a bag body 21 formed by combining a plurality of sheets or by folding one sheet and then laminating the peripheral edges with heat welding or an adhesive (bag-making process), and a bag body 21. It is integrated with the bag body 21 and includes a flow path member 22 for supplying the stock solutions C1 and C2 in the bag body 21 to the valve 40.

As shown in FIG. 2a, the bag body 21 has a vertically long substantially rectangular shape in which both sides of the lower end are cut out, and as shown in FIG. 2b, the bag body 21 is substantially flat in an empty state. When the stock solutions C1 and C2 are filled, they swell in the front-rear direction as shown in FIGS. 1b and 2c. In order to facilitate such swelling, in this embodiment, as shown in FIG. 3, the front surface portion 21a facing the outside of the outer container, the back surface portion 21b facing the inside, and the left and right sides of the front surface portion and the back surface portion. It is composed of four sheets of side folds 21c and 21d interposed between the edges of the container.

The front surface portion 21a and the back surface portion 21b each exhibit a vertically long substantially rectangular shape in which both the left and right lower ends are cut diagonally. The front surface portion and the back surface portion can have different shapes. The left and right lower ends of the side gussets 21c and 21d are notched diagonally, and have a substantially triangular shape that is convex downward, and have a rectangular shape that is thinner than the front surface portion 21a and the back surface portion 21b as a whole. As shown by the imaginary line, the side folds 21c and 21d are interposed between the side edges of the front surface portion and the back surface portion in a state of being folded in a substantially V shape so that the central portion projects inward. ..

The front surface portion 21a, the back surface portion 21b, and the side fold portions 21c, 21d each have bonding portions 21e, 21f, and 21g formed on the upper portion, both side portions, and the diagonally lower portion, respectively. In reality, the bonded portion is formed after being combined and joined. Further, the bonding portion 21h is also provided at the horizontal lower portion of the front surface portion 21a and the back surface portion 21b. Then, the bonded portions of the adjacent sheets are joined by welding or the like. That is, the front surface portion 21a and the upper portion of the back surface portion 21b are bonded to each other while sandwiching the flow path member 22 near the center, and the side folds folded in a V shape are bonded to each other near the left and right ends. It is bonded to the bonding portion 21e above the portions 21c and 21d. In this embodiment, the folded portions (V-shaped inner surfaces) at the upper ends of the side folds 21c and 21d are not bonded to each other. As a result, the side folds are likely to expand, and the left and right bonded portions 21f are less likely to bend. However, they may be bonded together, which facilitates the manufacture of the bag body.

The left and right side edge bonding portions 21f of the front surface portion 21a and the back surface portion 21b are bonded to the front and back side bonding portions 21f and 21f of the left and right side gussets 21c and 21d, respectively. The diagonally lower portion 21g of the front surface portion 21a and the back surface portion 21b is bonded to the left and right side folds 21c and 21d with the diagonally lower portion 21g and 21g on the front side and the back side. The front surface portion 21a and the back surface portion 21b are directly bonded to each other without the side folds.

The bonding portions at any of the above locations can be formed by aligning the edge portions outward, superimposing them, and joining them by heat welding. Depending on the material, bonding may be performed by ultrasonic welding, high-frequency welding, or the like, or bonding may be performed using an adhesive.

In each of the bag bodies 21, a substantially rectangular parallelepiped portion surrounded by these bonding portions 21e, 21f, 21g, and 21h serves as a stock solution storage chamber for filling the stock solutions C1 and C2. Since it has side folds 21c and 21d, the horizontal cross section has a substantially rectangular shape as shown in FIGS. 2c, 4b and 5b when the stock solutions C1 and C2 are filled. On the other hand, before filling the stock solution and after discharging, as shown in FIGS. 2b, 4a, and 5a, the V-shaped cross-section sheets of the side folds 21c and 21d are folded flat at the center, and the flow path member. Except for the portion where 22 is interposed, the inner surfaces of the front surface portion 21a, the back surface portion 21b, and the side fold portions 21c, 21d are in close contact with each other.

The sheet constituting the bag 21 is determined by the undiluted solution contained therein. For example, a synthetic resin sheet such as polyethylene, polypropylene, polyethylene terephthalate, nylon, or ever, or a vapor-deposited resin obtained by depositing silica or alumina on the synthetic resin sheet. Examples thereof include a sheet, a metal foil sheet such as aluminum, a synthetic resin sheet, a vapor-deposited resin sheet, and a laminated sheet in which at least two sheets selected from the metal foil sheet are laminated (particularly, a laminated sheet having a metal layer).

When the two-component reaction type preparation is filled as the stock solutions C1 and C2, a layer structure suitable for each stock solution can be selected. For example, when a two-component hair dye is used as a two-component reaction type preparation, the bag 21 filled with the first agent containing an oxidation dye that exerts a hair dyeing effect by being oxidized has an oxygen blocking property. It is composed of an opaque laminated sheet in which both sides of a high-quality metal leaf sheet are laminated with a synthetic resin sheet having high chemical resistance. The bag body 21 filled with the second agent containing an oxidizing agent such as hydrogen peroxide is composed of a synthetic resin sheet having high chemical resistance.

As the flow path member 22, conventionally known ones can be adopted. For example, an integrally molded product of a synthetic resin such as polyethylene or polypropylene, which is mounted directly on a valve or indirectly via a connecting member as shown in FIG. 2a, and on a mounting portion 23 and a lower portion of the mounting portion 23. It includes a welded portion 24 provided, and a rod-shaped flow path portion 25 extending from the welded portion 24 toward the bottom (downward) of the bag body 21.

The mounting portion 23 is formed in a cylindrical shape, and an engaging claw 23a that engages with an engaging projection (see reference numeral 53d in FIG. 1b) of the valve holder (see reference numeral 50 in FIG. 1b) is provided at the upper end thereof. There is. The slits 23b are formed in a cross shape in a plan view so as to be easily elastically deformed. A flange 23c that regulates the position of the bag body 21 is provided at the boundary between the mounting portion 23 and the welding portion 24. The flange is long on the left and right, and has the shape of an athletics track. That is, the central portion is substantially rectangular and both ends are semicircular.

The welding portion 24 is a portion where the bag body 21 is fixed to the flow path member 22 by heat welding, ultrasonic welding, or the like (see FIG. 2c). Its shape is a columnar shape with a substantially rhombic cross section, and is flat along the surface of the sheet. Further, in order to strengthen the fixing of the bag body 21, a plurality of ribs extending in the horizontal direction may be formed on the side surface thereof. The inside is hollow and communicates with the inside of the mounting portion 23.

As shown in FIGS. 4a and 4b, the flow path portion 25 includes a rod-shaped main body 26 extending in the vertical direction, and a protrusion 27 protruding from the surface of the main body 26 to form a flow path for the undiluted solution on the surface of the main body 26. The undiluted solution C1 in the bag body 21 is provided at the upper end of the main body 26, communicates the flow path with the inside of the welding portion 24 and the inside of the mounting portion 23, and connects the flow path member 22 to the connecting cylinder 41a of the valve 40. It is provided with a lead-out hole (see reference numeral 28 in FIG. 2a) for leading out C2 into the housing 41 of the valve 40.

The protrusions 27 have a plurality of main ridges 27a provided at regular intervals in the vertical direction along the central axis of the main body 26, and the main ridges 27a and the main ridges 27a on both sides of the main ridges 27a in the left-right direction. It is composed of a plurality of sub-ridges 27b provided at regular intervals in the vertical direction while at regular intervals. The main ridge 27a and the sub ridge 27b are provided so as to be positioned between the main ridges 27a and the sub ridges 27b so as to be vertically displaced from each other (see FIG. 1b). Further, a valley portion 29 extending in the vertical direction is formed between the main ridge 27a and the sub ridge 27b in a plan view, and the valley portion 29 forms a flow path of the stock solution. The upper end of the flow path is connected to a lead-out hole 28 provided so as to straddle the front and back surfaces of the main body 26, and the stock solutions C1 and C2 flowing through the flow path can be guided to the lead-out hole 28.

Subsequently, the valve assembly 30 will be described. As shown in FIGS. 1b and 5, the valve assembly 30 covers the valves 40 for two independent pouches, the valve holder 50 that accepts the valves 40, the valve 40 and the valve holder 50, and removes the valve holder 50. It is composed of a mountain cover 60 fixed to the container 10.

The valve 40 is for filling the pouch with the undiluted solution, and selectively discharges / shuts off the undiluted solution filled in the pouch to the outside. Specifically, the valve 40 includes a tubular housing 41, a stem 42 that is movably inserted into the housing 41, and a stem rubber 43 that closes a stem hole provided on a side surface of the stem 42. It has a known configuration including a spring 44 that constantly urges the stem 42 upward, and a cover 45 that fixes the stem 42 and the stem rubber 43 to the housing 41.

The housing 41 is a bottomed tubular body provided with a columnar space for inserting the stem 42. A cylindrical connecting cylinder 41a extends downward from the bottom, and a mounting portion 23 of the flow path member 22 of the pouch is connected (outerly fitted) to the connecting cylinder 41a. Further, in order to communicate with the inside of the flow path member 22, a communication hole 41b is provided at the bottom.

The lower part of the valve holder 50 is a plug portion 51 that fits into the mouth portion 10f of the outer container 10, and an annular recess 51a is provided on the outer peripheral surface of the plug portion 1, and a gasket (O-ring) is provided in the annular recess 51a. ) 51b is provided. The gasket 51b comes into contact with the inner peripheral surface of the neck portion 10d of the outer container 10 and is compressed in the radial direction to form a seal between the valve holder 50 and the outer container 10.

Further, the valve holder 50 has a flange portion 52 on the outer periphery that abuts on the flange 10e of the outer container. Further, two tubular portions 53 are provided as holding portions for holding the valve inside the lower portion, and the above-mentioned engaging protrusion 53d is provided on the inner peripheral surface of the lower end of the tubular portion 53, and the flow path member of the pouch. It is engaged with the engaging claw 23a of 22.

A discharge product using the discharge container 1 having the above configuration is manufactured as follows. First, the pouch mounting portion 23 is engaged with the lower cylinder portion 53c of the valve holder 50. Next, the valve 40 is inserted into the holding portion of the valve holder 50. As a result, the connecting cylinder 41a of the housing 41 of the valve 40 is inserted into the mounting portion 23 of the flow path member 22, and the inside of the bag body 21 of the first and second pouches 20A and 20B and the inside of the housing 41 of the valve 40. Communicate. Next, the first pouch 20A and the second pouch 20B are inserted into the outer container 10, respectively.

When the first and second pouches 20A and 20B are inserted to some extent, the lower ends of the pouches 20A and 20B abut on the inner bottom of the outer container 10, the valve assembly 30 is supported by the pouches 20A and 20B, and the mouth portion of the outer container 10 is inserted. It will be in a floating state from 10f. That is, it is located above the position when it is attached to the outer container 10. In this state, the pressure agent P is filled between the outer container 10 and the pouch through the gap formed between the stopper 51 of the valve holder 50 and the mouth 10f of the outer container 10, so-called undercup. Fill. At this stage, the side folds 21c and 21d of the bag 21 are maintained in a V-shaped folded state. The pressurizing agent P is filled with a compressed gas such as nitrogen, compressed air, carbon dioxide gas, and nitrous oxide. The pressure after filling is, for example, 0.1 to 0.5 MPa (gauge pressure) at 25 ° C.

After filling with the pressurizing agent, the valve assembly 30 is pushed down to press the flange portion 52 against the flange 10e of the outer container 10. Then, the lower end of the mountain cover 60, which is previously covered with the valve holder 50, is crimped and fixed to the outer container 10. As a result, the gasket 51b is compressed and sealed in the radial direction between the inner surface of the neck portion 10d of the outer container 10 and the annular recess 51a of the plug portion 51, and is shielded from the outside.

Then, the air in the bag 21 is discharged from the stem 42, and the first and second pouches 20A and 20B are appropriately filled with the stock solutions C1 and C2. As the undiluted solution, for example, a cream or gel of a two-component reaction type preparation such as a two-component hair dye, a two-component perm agent, a two-component adhesive, a two-component warm shaving, and a two-component cooling cream (for example). , Viscosity is 100-100,000 MPa · s), liquid and the like. When the first and second pouches 20A and 20B are filled with the undiluted solution, the bag body 21 swells so that the front surface portion 21a and the back surface portion 21b are separated from each other while the folded side folds 21d are expanded. Therefore, the bonded portion 21f of the side edge is not bent, the horizontal cross section of the central portion is substantially rectangular, the pressing of the pouches is suppressed, and the deformation of the flow path portion 25 of the flow path member is also suppressed. This completes the production of the discharge product. The filling amount of the stock solution is preferably 90% by volume or less, particularly 80% by volume or less, and 50% by volume or more, particularly 60% by volume or more, which is the full filling amount of the bag body. The pressure after filling the two pouches with the stock solution is, for example, 0.3 to 0.8 MPa (gauge pressure) at 25 ° C.

Since the bag bodies 21 of the pouches 20A and 20B have side folds 21c and 21d between the left and right edges of the front surface portion and the back surface portion, when the respective bag bodies are filled with the undiluted solution, the bag bodies 21 of the two pouches 21. Although the back surface portions of the above are in close contact with each other, there is a margin in capacity and the front surface portion and the back surface portion do not bulge roundly because they swell in the direction of the two side folds. Then, as shown in FIGS. 4b and 4c, the bag bodies 21 do not strongly press against each other and also do not strongly press against the outer container 10, and excessive bending is performed on the mounting portion 23 and the flow path portion 25 of the flow path member 22. No force is applied. Therefore, the flow path member 22 is prevented from being deformed or damaged.

Further, in this embodiment, since the corner portion of the lower end of the bag body 21 is formed to be diagonally cut out, the stock solution C is not filled in the corner portion, and the residual solution C can be suppressed at the corner portion. .. Further, when the bag body is stored in the outer container, it is easy to store. Further, an oblique notch is provided so that the lower part of the front surface portion and the back surface portion has an inverted trapezoidal shape, and the lower ends of the side folds 21c and 21d have an inverted triangular shape. As the 21a and the back surface portion 21b are separated from each other, the trapezoidal portion at the lower end of the front surface portion and the back surface portion is bent inward to form the bottom portion together with the triangular lower ends of the side fold portions 21c and 21d. As a result, the bag body 21 can easily form a rectangular cross section in a plan view.

The discharge product 1 simultaneously uses the first stock solution C1 in the first pouch and the second stock solution C2 in the second pouch by operating a discharge member such as a push button with a nozzle attached to the stem 42 of the valve assembly 30. Can be discharged. Since this discharge container has side folds on both sides of the front surface and the back surface, the bonded portion of the side edge is hard to bend, and the flow path member is hard to be added and deformed. Since the undiluted solution is led out from the outlet hole 28 of the flow path member, the bag body contracts in a stable shape from the upper part, can be stably discharged from each pouch, and the ratio of the discharge amounts of the two undiluted solutions is also stable. ..

Subsequently, other bag bodies will be described. The bag body 21A shown in FIG. 6 is a back surface sheet 21i in which the side folds 21c and 21d are integrally continuous with the back surface portion 21b, and the front surface portion 21a is a separate body like the bag body of FIG. Other points are the same as the bag body 21 of FIG. In this case, since the back surface portion 21b and the side fold portions 21c and 21d are continuous, it is not necessary to provide a bonding portion between the side edges, and the side fold portion is easily expanded by that amount. Therefore, since there is a sufficient margin for the filling amount, it is possible to further prevent deformation and breakage of the flow path member 22. In addition, the bonded portions of the two bags do not interfere with each other.

On the other hand, when the side folds 21c and 21d are integrally formed with the front surface 21a, the back surface 21b and the side folds 21c and 21d are joined by the bonding portion, so that the rectangular shape can be easily maintained and the front surface 21a Since the side folds 21c and 21d are continuous, they are easily curved. Therefore, the force with which the back surfaces of the two pouches are pressed against each other can be weakened. The bag body can also be composed of one sheet in which the front surface portion 21a, one side fold portion 21c, the back surface portion 21b, and the other side fold portion 21d are all connected. In this case, for example, a bag can be formed by continuously forming a tube, cutting it to a predetermined length, and closing the bottom. In either case, first, the bag bodies 21 and 21A whose upper ends are not closed are formed, the flow path member 22 is inserted, and then the upper ends are closed.

Next, another bag body will be described. The pouch bag body 21B shown in FIGS. 7a and 7b is not provided with a side fold, and the bottom fold 21j is interposed between the lower part of the front surface 21a and the lower part of the back surface 21b. The bottom fold 21j is composed of a substantially hexagonal bottom sheet in which two trapezoids are connected as shown in FIG. 7d. The bottom sheet is folded in a mountain along the central line L, and the peripheral edge is joined to the lower peripheral edge of the front surface portion and the back surface portion. The front surface portion 21a and the back surface portion 21b are joined to each other at the upper end and the side edge. Other points such as the material of the sheet and the connection with the flow path member 22 are the same as those of the bag body 21 of FIGS. 1a and 1b.

When the pouch is filled with the contents, as shown in FIG. 7c, the central portion of the bottom sheet bulges downward, and the lower ends of the front surface portion 21a and the back surface portion 21b are pulled downward, so that swelling in the front-rear direction is suppressed. The horizontal cross section can be made substantially rectangular from the bottom sheet to the central portion. Therefore, the bag bodies 21B of the two pouches do not strongly press against each other, and the flow path member 22 can be prevented from being deformed or damaged. The front sheet and the back sheet can also be formed from one continuous sheet. The bottom sheet can also be formed integrally with the front surface sheet or the back surface sheet.

The bag body 21C of the pouch shown in FIGS. 8a and 8b is a bag body 21B of FIGS. 7a and 7b provided with an upper gusset portion 21k made of an upper surface sheet. The front surface sheet (see FIG. 9a) constituting the front surface portion 21a, the back surface sheet constituting the back surface portion 21b, and the lower surface sheet (FIG. 9b) constituting the bottom fold portion 21j are the same as the bag body 21B of FIG. It is also possible to omit the bottom fold and provide only the upper fold 21k. As shown in FIG. 9c, the upper surface sheet constituting the upper gusset portion 21k has a substantially hexagonal shape similar to that of the lower surface sheet, and a hole 21 m through which a flow path member is passed is formed in the center thereof. The periphery of the hole 21m is joined to the lower surface of a track-shaped flange (see reference numeral 23c in FIG. 2) of the flow path member. Then, the bonding portion around the upper surface sheet is joined to the bonding portion at the upper ends of the front surface portion 21a and the back surface portion 21b. In this embodiment, the triangular portions at the left and right ends of the upper surface sheet are joined to the front surface sheet and the back surface sheet in a state of being inclined downward toward the tip end.

As shown in FIG. 9d, the front surface sheet forming the front surface portion 21a, the back surface sheet forming the back surface portion 21b, and the upper surface sheet forming the upper gusset portion 21k are bonded together with each other. Assembled into a three-dimensional shape. As shown in FIGS. 9b and 9c, the bottom sheet and the top sheet preferably have notches 21n formed at the left and right ends for easy bending.

In this pouch, the upper gusset portion 21k is formed on the upper portion by the upper surface sheet, and the lower surface gusset portion 21j is also formed on the lower surface, so that the upper and lower gusset portions cooperate to form a horizontal cross section in the center of the body portion. It does not bulge in an arc shape, but becomes more rectangular. Therefore, the pressing force between the two pouches is not strong, and the flow path member is prevented from being deformed or damaged. The upper surface sheet and the lower surface sheet may be integrated with the front surface sheet or the back surface sheet.

Although the typical embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. For example, the number of pouches is not limited to two, and may be three or more as long as the effects of the present invention are exhibited. Further, although the side folds are provided on both the left and right sides, it is also possible to provide only one side and make the whole substantially triangular columnar. Further, by selecting the material and thickness of the sheet constituting the bag body, the back surface portion may be less likely to be deformed than the front surface portion. In that case, the front surface portion is greatly deformed, but the back surface side is prevented from bulging. Therefore, it is possible to prevent the two pouches from strongly pressing against each other, and the deformation and damage of the flow path member are prevented.

1 ・ ・ Discharge container 10 ・ ・ Outer container 10a ・ ・ Bottom 10b ・ ・ Body 10c ・ ・ Shoulder 10d ・ ・ Neck 10e ・ ・ Flange 10f ・ ・ Mouth 10g ・ ・ Flange 10h ・ ・ Leg 20A ・ ・1st pouch 20B ・ ・ 2nd pouch 21 ・ ・ Bag body 21a ・ ・ Front surface 21b ・ ・ Back surface 21c, 21d ・ ・ Side fold 21e ・ ・ Upper bonding part 21f ・ ・ Side edge bonding 21g ·················································································································································································· Flow path 26 ・ ・ Main body 27 ・ ・ Protrusion 27a ・ ・ Main ridge 27b ・ ・ Sub ridge 28 ・ ・ Outlet hole 29 ・ ・ Tani part 30 ・ ・ Valve assembly 40 ・ ・ Valve 41 ・ ・ Housing 41a ・ ・Connecting cylinder 41b ・ ・ Communication hole 42 ・ ・ Stem 43 ・ ・ Stem rubber 44 ・ ・ Spring 45 ・ ・ Cover 50 ・ ・ Valve holder 51 ・ ・ Plug part 51a ・ ・ Annular recess 51b ・ ・ Gasket (O-ring)
52 ・ ・ Flange part 53 ・ ・ Cylinder part 53d ・ ・ Engagement protrusion 60 ・ ・ Mountain cover C1 ・ ・ First undiluted solution C2 ・ ・ Second undiluted solution P ・ ・ Pressurizer 21A ・ ・ Bag body 21i ・ ・ Back sheet 21B・ ・ ・ Bag body 21j ・ ・ Bottom flange L ・ ・ Central line 21C ・ ・ Bag body 21k ・ ・ Upper flange 21m ・ ・ Hole 21n ・ ・ Notch

Claims (3)

An outer container with an opening at the top and
Two pouches housed in an outer container and placed in parallel,
A discharge container that is connected to each pouch and has a valve assembly that can be attached to the opening of the outer container.
The pouch is composed of a flat bag body made of a flexible sheet and a flow path member that secures a flow path when the contents are reduced and the bag body is brought into close contact with the bag body.
Side the bag is interposed a surface portion facing the front side of the outer container, and the bottom facing the center side, during the edge between the left and right both of the surface portion and the back surface It has a gusset and
The lower ends of the front surface portion and the back surface portion leave a horizontal portion, and the end portion on the side where the side fold portion is located is formed diagonally.
The side fold is composed of a sheet folded in a V shape toward the center of the pouch.
The upper parts of the front surface portion and the back surface portion are bonded to each other while sandwiching the flow path member in the vicinity of the center.
In the vicinity of the left and right ends, it is attached to the upper part of the outer surface of the side fold that is folded in a V shape.
The inner surfaces of the folded parts at the upper end of the V-shaped side folds are not bonded to each other.
The side folds are provided with a lower portion in which the left and right lower ends are diagonally cut out, and the diagonally formed portions of the front surface portion and the back surface portion and the diagonally cut out portions of the side fold portions are edges. A discharge container that is bonded along the portions and the horizontal portions at the lower ends of the front surface portion and the back surface portion are bonded to each other. Said surface portion, a back portion and dispensing container according to claim 1, wherein the bonded portion between the one edge each other Gawamachi portion. Discharging product comprising a dispensing container according to claim 1 or 2 Symbol placement, and 50-90 volume% filled stock of fully Note amount to the bag body.

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