JP2013147295A - Dispensing container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate dispensing of all the content to reduce a residual amount in a dispensing container of delamination structure.SOLUTION: Gas is stored in an inner container 11 to form a gas space S, and the volume of the gas is at least 4% of the volume of the inner container 11. It is preferable that the gas quickly moves in the inner container 11 when a dispensing container is inclined and put in a dispensing attitude to dispense the content M from a dispensing port 14. The gas may be filled in a gas bag or may be filled in a gas chamber formed in the inner container 11.

Description

  The present invention relates to a discharge container. More specifically, the present invention relates to an improvement in the structure of a discharge container having a delamination structure.

  Conventionally, as a discharge container in which the content liquid is poured by mainly pressing the container, an inner container (inner layer) containing the content liquid and an outer container (outer layer) in which the inner container is laminated A laminated peeling container (also called a delamination container or the like) is used. In a general delamination container, the inner container is formed of a flexible material that deforms by deformation as the content liquid decreases, and the outer container is formed of a material that elastically deforms and is discharged. An amount of outside air corresponding to the above is sucked from the outside air introduction hole and introduced between the inside container (see, for example, Patent Documents 1 and 2).

Japanese Patent No. 4024396 Japanese Patent No. 3688373

  However, in the conventional delamination container (delamination container), for example, even when the user seems to have squeezed the container and discharged all the contents, the contents remain to some extent (as an example, about 5 to 6%) ) Sometimes left in the inner container.

  In view of the above, an object of the present invention is to provide a discharge container having a delamination structure in which the entire contents can be easily discharged and the residual amount can be reduced.

  In order to solve this problem, the present inventor has made various studies. The conventional discharge container (delamination container) having a delamination structure as described above, for example, prevents oxidization of the contents of the liquid food or the like by preventing air from entering the inner container when the liquid food is discharged. There is a big feature in the structure that can suppress the contact with. However, because of this structure, even if the user grasps the container firmly and tries to use up the contents, a part of the contents may remain in the container. It can happen that the user is dissatisfied at some stage. The present inventor, who has focused on such a phenomenon and repeatedly studied how to use up the contents as easily as possible, has come to obtain knowledge that leads to the solution of such problems.

  The present invention is based on such knowledge, and includes a flexible inner container that accommodates the contents and deforms in accordance with a decrease in the contents, and the inner container is internally provided, and is elastically deformed so that the inner container is deformed. A container main body having an outer container in which an air intake hole for inhaling outside air is formed, and a discharge port for discharging contents are formed in the top surface portion, and are attached to the mouth portion of the container main body. A discharge container comprising: a discharge cap; an outside air introduction hole that communicates between the outside and the intake hole; and an air valve portion that switches communication between the outside air introduction hole and the intake hole and blocking the air. Is accommodated to form a gas space, and the volume of the gas is 4% or more of the volume of the inner container.

  One of the features of the delamination container is a structure in which the contact between the contents and the outside air is cut off so that the outside air does not enter the inner container. In the present invention, such a feature is reversed, and a gas space is formed from the beginning by accommodating gas in the inner container. In general, since gas is more easily compressed than contents, when the user grasps the container to use up the contents, the gas acts to push out the contents. Finally, the gas in the gas space remains in the inner container as a substitute for the contents. Therefore, it is easy to discharge all of the contents, and the remaining amount is smaller than in the past.

  In addition, in the present invention, unlike the case where air naturally enters the inner container of the delamination container, a gas space having a predetermined capacity or more is intentionally formed in the inner container. Therefore, it is possible to achieve an expected effect of allowing the gas in the gas space to remain in the inner container as a substitute for the contents and to easily discharge all of the contents.

  The gas is preferably one that moves quickly in the inner container when the discharge container is tilted to a discharge posture in order to discharge the contents from the discharge port.

  Moreover, in the discharge container which concerns on this invention, it is also preferable that gas is enclosed with the gas bag.

  Or in the discharge container which concerns on this invention, it is also preferable that gas is enclosed with the gas chamber formed in the inner container. In this case, the gas chamber may be formed at the bottom of the inner container.

  According to the present invention, it is possible to easily discharge all of the contents and reduce the residual amount.

It is a fragmentary sectional view which shows the whole discharge container. It is a longitudinal cross-sectional view explaining the effect | action at the time of the discharge of the content in a discharge container. It is a longitudinal cross-sectional view explaining an effect | action when a discharge container restore | restores after discharge of the contents. It is a perspective view of the discharge cap of the state covered with the overcap. It is a perspective view of the discharge cap of the state which opened the overcap. It is a side view of the discharge cap in the state where the overcap is opened. It is a top view of the discharge cap of the state which opened the overcap. It is a longitudinal cross-sectional view which shows a part of discharge cap of the state covered with the overcap. It is a figure which expands and shows a part of FIG. It is a fragmentary sectional view showing the whole discharge container concerning one embodiment of the present invention. It is a longitudinal cross-sectional view which shows the principal part of the discharge container which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view which shows the principal part of the discharge container which concerns on other embodiment of this invention. It is a longitudinal cross-sectional view which shows the bottom part of the discharge container which concerns on other embodiment of this invention. It is a graph which shows the test result in Example 1 of this invention.

  Hereinafter, a discharge container according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the discharge container 10 includes a flexible inner container 11 that accommodates the contents M and is squeezed and deformed as the contents M decrease, and an inner container 11 that is internally housed and elastically deformed. A container main body 13 having a possible outer container 12 and a discharge cap 15 which is mounted on a mouth portion 13a of the container main body 13 and has a discharge port 14 for discharging the contents M is detachably disposed. The overcap 16 is provided.

  Here, the container main body 13 is formed in a bottomed cylindrical shape, the overcap 16 is formed in a topped cylindrical shape, and the container main body 13 and the overcap 16 are covered with the overcap 16 attached to the discharge cap 15. These center axes are arranged on a common axis (see FIG. 8 and the like). Hereinafter, this common axis is referred to as the container axis O, the overcap 16 side along the container axis O direction is referred to as the upper side, the bottom side (not shown) of the container body 13 is referred to as the lower side, and the direction perpendicular to the container axis O is the diameter. The direction that goes around the container axis O is called the circumferential direction.

  The overcap 16 may be connected to the discharge cap 15 by a hinge portion 16a (see FIG. 2 and the like). In order to prevent the overcap 16 from getting in the way when the contents M are discharged from the discharge port 14, the hinge portion 16 a is configured so that the discharge container 10 is inclined so that the discharge port 14 faces downward and the discharge port 10 is in a discharge posture. It is arranged to be higher than 14.

  The container body 13 is a so-called Delami bottle in which the inner container 11 is detachably laminated on the inner surface of the outer container 12. The container body 13 is formed by, for example, blow molding a co-extruded two-layer parison. The outer container 12 is made of, for example, polyethylene resin or polypropylene resin, and the inner container 11 is made of, for example, a polyamide-based synthetic resin that is not compatible with the resin forming the outer container 12 or ethylene vinyl alcohol. It is made of polymerized resin.

  The mouth portion 13a of the container body 13 is formed in a two-stage cylindrical shape including an upper cylindrical portion 17 positioned on the upper side and a lower cylindrical portion 18 positioned on the lower side and formed with a larger diameter than the upper cylindrical portion 17. (See FIG. 2 etc.). A male screw portion 29 is formed on the outer peripheral surface of a portion (hereinafter, referred to as an outer upper tube portion) 17 a formed of the outer container 12 in the upper tube portion 17. In addition, an intake hole 19 through which the outside air is sucked into the inner container 11 is formed in a portion of the outer upper cylinder portion 17a located below the male screw portion 29 (see FIG. 3 and the like). A communication groove 20 extending in the container axis O direction is formed in a portion of the male screw portion 29 located above the intake hole 19.

  An inner peripheral surface of the outer upper cylindrical portion 17a is a cylindrical surface, and a portion (hereinafter referred to as an inner upper cylindrical portion) 17b formed of the inner container 11 in the upper cylindrical portion 17 is laminated on the inner peripheral surface. (See FIG. 2 etc.). The upper end portion of the inner upper cylindrical portion 17b may be folded outwardly in the radial direction and disposed on the open end of the outer upper cylindrical portion 17a.

  The discharge cap 15 includes an inner plug member 21 that closes the mouth portion 13a of the container main body 13, and a top-like cylindrical main body cylinder member 23 that covers the inner plug member 21 and has the discharge port 14 formed therein. (See FIG. 2 etc.). The inner plug member 21 includes a plug main body 47 whose outer peripheral edge is disposed on the opening end of the mouth portion 13 a of the container main body 13, and a communication cylinder portion 22 erected from the plug main body 47.

  The stopper body 47 has a bottomed cylindrical inner cylinder portion 24 disposed in the mouth portion 13a of the container body 13 with a gap between the mouth portion 13a, and a radial direction from the upper end of the inner cylinder portion 24. A flange portion 25 that protrudes toward the outside of the container body 13 and is disposed on the open end of the mouth portion 13a of the container body 13, and an outer cylinder portion 26 that extends upward from the outer peripheral edge of the flange portion 25; An intermediate tube portion 27 extending downward from the flange portion 25 so as to surround the inner tube portion 24 from the outside in the radial direction and fitted in the mouth portion 13a of the container body 13 in a liquid-tight manner. (Refer to FIG. 2 etc.). The inner cylinder part 24, the flange part 25, the outer cylinder part 26 and the intermediate cylinder part 27 are arranged coaxially with the container axis O. An outer air circulation hole 28 that penetrates in the radial direction and opens downward is formed at the lower end portion of the outer cylinder portion 26.

  On the bottom wall portion of the inner cylinder portion 24, the communication cylinder portion 22 is disposed. In addition, a through-hole 42 that opens both in the inner container 11 and in the communication cylinder portion 22 is provided in the bottom wall portion. The through hole 42 is constituted by a plurality of small holes that are evenly arranged around the container axis O, for example (see FIG. 2 and the like).

  The main body cylinder member 23 is formed in a top cylinder shape that is arranged coaxially with the container axis O. On the inner peripheral surface of the peripheral wall portion 23 a of the main body cylindrical member 23, a female screw portion 30 is formed that is screwed to the male screw portion 29 of the mouth portion 13 a of the container main body 13. Further, in the peripheral wall portion 23a, the lower cylinder portion 18 in the mouth portion 13a of the container body 13 is fitted in an airtight state in a lower end portion located below the screw portion where the female screw portion 30 is formed, and the screw The outer tube portion 26 of the inner plug member 21 is fitted in the upper end portion located above the portion.

  A discharge port 14 for discharging the contents M is formed in the top surface portion 31 of the discharge cap 15 (see FIG. 5 and the like). In the discharge container 10 of the present embodiment, the discharge port 14 is formed so as to be coaxial with the container axis O (see FIG. 2 and the like), but may be formed at a position shifted from the container axis O. .

  Further, the top surface portion 31 of the discharge cap 15 is formed with an outside air introduction protrusion 33 protruding upward, and the outside air introduction hole 33 is formed in the outside air introduction protrusion 33 (see FIG. 2 and the like). In order to prevent the contents M from being sucked from the outside air introduction hole 34, the outside air introduction protrusion 33 is in a state where the discharge container 10 is inclined to be in a discharge posture in order to discharge the contents M from the discharge port 14. And formed at a position higher than the discharge port 14 (see FIG. 2 and the like).

  For example, in the present embodiment, the outside air introduction protrusion 33 is formed so as to stand between the discharge port 14 and the hinge portion 16 a, and the outside air introduction hole 34 is located at a position higher than the top surface portion 31. It is arranged at a spatial distance from 31. For this reason, even if the content M dripping from the discharge port 14 adheres to the outer surface of the discharge cap 15, the dripping content M is hardly sucked from the outside air introduction hole 34. In addition, the outside air introduction hole 34 is opened upward when the discharge container 10 is inclined to discharge the contents from the discharge port 14, more preferably vertically upward of the outside air introduction protrusion 33. (See FIG. 2 etc.).

  The specific shape of the external air introduction protrusion 33 described above is not particularly limited. For example, in this embodiment, the length in the circumferential direction is longer than the thickness of the discharge cap 15 in the radial direction (the direction perpendicular to the container axis O). In addition, it is formed in a curved shape along an arc centered on the discharge port 14 (see FIG. 5). According to the external air introduction protrusion 33 having such a shape, the contents M adhering to the outer surface of the discharge cap 15 due to dripping or the like are prevented from approaching the external air introduction hole 34 and are sucked from the external air introduction hole 34. Can be avoided. It is also preferable that the outside air introduction protrusion 33 is curved along an arc centered on the discharge port 14.

  The discharge cap 15 is formed with an engaging portion 32 that engages the overcap 16 in the covered state. For example, in the present embodiment, a step portion slightly projecting in the radial direction is formed around the top surface portion 31 of the discharge cap 15, and the over cap 16 in the covered state is engaged by the step portion. A joint portion 32 is formed (see FIGS. 2 and 5).

  Moreover, it is preferable that the top | upper surface part 31 is formed smoothly. For example, in the discharge container 10 of the present embodiment, a portion of the top surface portion 31 excluding the portion where the discharge port 14 is formed and the portion where the outside air introduction protrusion 33 is formed is a smooth surface. In this case, wiping is easy, for example, even if the content M that has dripped in liquid adheres to the top surface portion 31 of the discharge cap 15, it can be wiped with one wipe.

  The top surface portion 31 is formed with a receiving tube portion 35 that extends downward and has an outer diameter equal to the inner diameter of an outer fitting tube portion 40 described later. Further, a discharge cylinder 36 whose inside is the discharge port 14 is provided through the upper plate portion 32.

  An inner seal cylinder portion (seal portion) 37 extending downward from the overcap 16 is fitted in the discharge cylinder 36 (see FIGS. 1, 5, 8, etc.). Further, an annular protrusion 38 is formed around the inner seal cylinder portion 37 so as to protrude downward from the back surface of the overcap 16 (see FIG. 5 and the like).

  Further, the overcap 16 is formed with an outside air introduction hole seal portion 39 that closes the outside air introduction hole 34 when the overcap 16 is attached to the discharge cap 15 (see FIGS. 8 and 9). If the overcap 16 is attached to the discharge cap 15 when the discharge container 10 is not used or transported, the outside air introduction hole seal portion 39 causes the contents M to be sucked in unexpectedly from the outside air introduction hole 34. Is avoided (see FIGS. 4 and 8).

  Here, between the inner plug member 21 and the main body cylinder member 23, an outer fitting cylinder portion 40 that is externally fitted to the communication cylinder portion 22 of the inner plug member 21 is disposed. The outer fitting cylinder part 40 is arranged coaxially with the container axis O, and the lower end part of the outer fitting cylinder part 40 is fitted on the communication cylinder part 22 and in the inner cylinder part 24 of the inner plug member 21. The upper end part of the outer fitting cylinder part 40 is fitted on the receiving cylinder part 35 of the main body cylinder member 23.

  An annular air valve portion 41 projecting outward in the radial direction is formed at an intermediate portion of the outer fitting tube portion 40 in the container axis O direction (see FIGS. 2 and 3). The air valve portion 41 is elastically deformable, and switches between communication between the intake hole 19 and the outside air introduction hole 34 and blocking of the communication.

  The inner stopper member 21 has a communication recess 43 that allows the discharge cylinder 36 and the inner container 11 to communicate with each other. The communication concave portion 43 is configured by the inside of the communication cylinder portion 22 and is disposed coaxially with the container axis O. Thereby, the container axis O direction and the axial direction of the communication recessed part 43 correspond. In the illustrated example, the communication recess 43 is located below the discharge cylinder 36, that is, inside the inner container 11 along the container axis O direction. Furthermore, the internal volume of the communication recess 43 is larger than the internal volume of the discharge cylinder 36.

  A valve body 44 that is slidably fitted along the container axis O direction and is slid along the container axis O direction to open and close the communication recess 43 inside the communicating cylinder portion 22 of the inner plug member 21. Is arranged. The valve body portion 44 is formed in a bottomed cylindrical shape disposed coaxially with the container axis O, and further has an annular flange portion projecting radially outward from an upper end (upper end) in the container axis O direction. It is regulated to have a shape. With respect to the valve body portion 44, the annular upper end surface of the communication cylinder portion 22 functions as a valve seat (valve retainer) that receives the valve body portion 44 in contact with the flange portion. At this time, the outer peripheral surface of the valve body portion 44 and the inner peripheral surface of the communication recess 43 may be less likely to contact each other, or the bottom surface of the valve body portion 44 may be more radial than the communication cylinder portion 22 in the plug body 47. It is good also as a structure which does not contact | abut to the part located inside.

  Further, the upper end of the valve body portion 44 is in contact with the upper end surface of the communicating cylinder portion 22 or is located above the upper end surface, and as shown in FIGS. Is connected to one end of a connecting piece 45 that connects the valve body portion 44 and the external fitting cylinder portion 40. A plurality of connection pieces 45 are provided at intervals in the circumferential direction, three in the illustrated example, and each connection piece 45 is curved and extends along the circumferential direction. Further, the positions of the both ends of the connecting piece 45 in the container axis O direction are the same. The valve body portion 44, the outer fitting cylinder portion 40, the connecting piece 45, and the air valve portion 41 are integrally formed to constitute a connecting body 48.

  Next, the operation of the discharge container 10 configured as described above will be described.

  As shown in FIG. 2, when discharging the contents M from the discharge container 10, first, the overcap 16 is removed from the discharge cap 15. After that, in a state where the discharge container 10 is tilted so as to face the lower side than the horizontal plane and in a discharge posture, the discharge container 10 is pressurized to be pushed inward in the radial direction to be squeezed (elastically deformed), The inner container 11 is deformed together with the outer container 12 to reduce the volume.

  Then, the pressure in the inner container 11 rises, and the content M in the inner container 11 presses the valve body part 44 through the through hole 42, and the connecting piece 45 is elastically deformed, so that the valve body part 44 becomes the container. The communication recess 43 is opened by being slid toward the outside of the inner container 11 along the axis O direction. As a result, the content M in the inner container 11 is discharged to the outside through the through hole 42, the communication recess 43, the outer fitting cylinder portion 40, and the discharge port 14 (see FIG. 2).

  Thereafter, when the pushing force on the valve body 44 by the contents M in the inner container 11 is weakened by stopping or releasing the pushing of the discharge container 10, the pressure difference caused by the elastic restoring force of the discharge container 10. Thus, the valve body portion 44 slides inside the inner container 11 along the container axis O direction (see FIG. 3).

  At this time, as shown in FIG. 3, when the valve body portion 44 enters the communication recess 43, the outer peripheral surface of the valve body portion 44 comes into sliding contact with the inner peripheral surface of the communication recess 43 and the communication recess 43 and the valve body portion. The gap with 44 is closed. Thereby, an inner space 46 in which the contents M that have not been returned to the inner container 11 remain is formed between the main body cylinder member 23 and the inner plug member 21. The inner space 46 communicates with the discharge port 14, and the valve body portion 44 is a part of the drawing wall, and the communication with the communication recess 43 is blocked by the valve body portion 44.

  Then, after the inner space 46 is formed in this way, when the valve body portion 44 continues to slide in the communication recess 43 along the container axis O direction, the contents of the inner space 46 are accompanied by the sliding. The product will increase. As a result, the contents M in the discharge port 14 can be drawn into the inner space 46, and the air A can be sucked into the discharge port 14 from the outside.

  Here, when the pressure of the container body 13 is released in a state where the communication concave portion 43 is closed by the valve body portion 44, the outer container 12 tends to be restored and deformed while the inner container 11 is deformed and deformed. At this time, a negative pressure is generated between the inner container 11 and the outer container 12, and this negative pressure acts on the air valve part 41 through the intake hole 19, thereby opening the air valve part 41. Then, outside air is sucked between the outer container 12 and the inner container 11 through the outside air introduction hole 34, the outside air circulation hole 28, the communication groove 20, and the suction hole 19 (see FIG. 3). When the internal pressure between the outer container 12 and the inner container 11 rises to atmospheric pressure, the air valve portion 41 is restored and deformed to shut off the intake hole 19 and the outside. Thereby, the volume reduction shape of the inner container 11 is maintained after the contents M are discharged.

  From this state, when the outer container 12 of the container body 13 is squeezed again, the air valve 41 is in a shut-off state, so that the internal pressure between the outer container 12 and the inner container 11 becomes a positive pressure. The inner container 11 is reduced in volume by the pressure, and the contents M are discharged by the above-described action.

  In addition, after discharging the contents M and before the communication recess 43 is closed by the valve body portion 44, when the pushing of the discharge container 10 is not only stopped but also released, the inner container 11 follows the outer container 12. Then try to restore and transform. Then, the pressure in the inner container 11 is reduced and a negative pressure is generated, and this negative pressure acts on the valve body part 44, so that the valve body part 44 is placed inside the inner container 11 along the container axis O direction. It will be made to slide smoothly toward.

  As described above, according to the discharge container 10 according to the present embodiment, after the content M is discharged, the content M in the discharge port 14 is drawn into the inner space 46 and air is discharged into the discharge port 14 from the outside. Since A can be sucked, it is possible to suppress the contents M that have not been returned to the inner container 11 from remaining in the discharge port 14. Thereby, after discharge of the content M, it can suppress that the content M leaks from the discharge outlet 14. FIG.

  Further, since the through hole 42 has a smaller diameter than the communication recess 43, even if the valve body portion 44 unintentionally displaces to the inside of the inner container 11 along the axial direction, the flange portion of the valve body portion 44. However, the stopper main body 47 comes into contact with the annular upper end surface of the communication cylinder portion 22, and the displacement of the valve body portion 44 can be restricted.

  Further, as in the present embodiment, when the valve body portion 44 is in contact with the stopper body 47 when the discharge container 10 is not operated, the valve body portion 44 allows the communication recess 43 and the through hole 42 to communicate with each other. Can be blocked. Furthermore, in this case, when the valve body 44 is restored and displaced after the contents M are discharged and the inner space 46 is formed as described above, the valve body 44 is placed in the communication recess 43 in the container. It can slide over the entire length in the direction of the axis O. As a result, the internal volume of the inner space 46 can be reliably increased, and the above-described effects can be remarkably achieved.

  Moreover, since the inner seal cylinder part 37 is provided in the overcap 16, it can suppress that the content M leaks out from the discharge outlet 14 in the state which closed the overcap 16. FIG. Further, as described above, after the contents M are discharged, the contents M that have not been returned to the inner container 11 are less likely to remain in the discharge port 14, so that the overcap 16 is discharged after the contents M are discharged. 15, when the inner seal cylinder portion 37 is fitted into the discharge port 14, the content M is pushed out of the discharge port 14 by the inner seal cylinder portion 37, or the content is stored in the inner seal cylinder portion 37. It can suppress that the thing M adheres.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  Another embodiment of the present invention is shown in FIG. In this embodiment, gas is previously accommodated in the inner container 11 to form a gas space S (see FIGS. 10 and 11). Since the gas in the gas space S is more easily compressed than the content M, when the user presses the discharge container 10 in an attempt to use up the content M particularly when the content M is reduced (squeezed deformed). The contents M are discharged more effectively.

  The operation of the gas space S will be described. Since gas has a lighter specific gravity than the contents M, the gas space S exists as a head space vertically above the contents M in the normal state where the discharge container 10 is placed so that the discharge cap 15 faces upward. (See FIG. 11 and the like). Here, when the discharge container 10 is tilted so as to face the lower side than the horizontal plane, the gas space S moves in the inner container 11 toward the bottom of the discharge container 10. When the user pressurizes the discharge container 10 in such a discharge posture, only the contents M are discharged from the discharge port 14, and the gas forming the gas space S remains in the inner container 11.

  In the discharge container 10, as the content M decreases, the ratio of the gas space S to the remaining amount of the content M increases, so that the content M is pushed out by the gas space S compressed during pressurization (discharge) Action). Therefore, particularly when the content M is reduced, the pressurized and compressed gas space S acts to push and discharge the content M more effectively. Finally, the gas in the gas space S remains in the inner container 11 as a substitute for the contents M. Therefore, according to the discharge container 10 of the present invention, it is easy to discharge all of the contents M, and the residual amount can be reduced as compared with the conventional case.

  The gas is preferably one that moves quickly in the inner container 11 when the discharge container 10 is tilted to the discharge posture in order to discharge the contents M from the discharge port 14. The moving speed of the gas in this case can vary depending on the volume of the gas, the shape of the inner container 11, etc., but is largely influenced by the viscosity of the contents M. From the viewpoint of facilitating discharge of all the contents M and reducing the residual amount, the viscosity of the contents M is preferably within a range in which the gas can move quickly (Example). 2).

  In addition, the specific example of the content M is not specifically limited, Various things, such as an emulsified liquid, a modified starch mixture, a liquid food, a soy sauce containing seasoning (it is an example of a clear seasoning and contains soy sauce itself), are employ | adopted. Yes. Moreover, although the specific example of gas is not specifically limited, It is preferable that it is a thing with low reactivity, such as oxidizing the contents M, such as nitrogen gas.

  Up to this point, the form in which the gas is accommodated in the inner container 11 together with the contents M has been illustrated, but the gas space S can also be formed in a mode different from the above. For example, the gas space S can be formed by accommodating the gas bag 50 filled with gas in the inner container 11 (see FIG. 12). In such a discharge container 10, the gas space S is maintained in the inner container 11 until all the contents M are discharged. The material and shape of the gas bag 50 are preferably such that the gas bag 50 can move quickly in the inner container 11 when the discharge container 10 is tilted.

  Alternatively, for example, the gas space 51 can be formed by forming the gas chamber 51 in the bottom of the inner container 11 and enclosing the gas in the gas chamber 51 (see FIG. 12). The gas chamber 51 can be formed by partitioning the inside of the inner container 11 with a flexible film, for example. Even in such a discharge container 10, the gas space S is maintained in the inner container 11 until all the contents M are discharged.

  The inventor conducted a test of what percentage or more of the gas space S with respect to the capacity of the inner container 11 of the discharge container (delami container) 10 is suitable.

<Test method>
The masses of two types of 200 ml and 250 ml discharge containers 10 were measured, the contents of the gas space S were changed, the contents (liquid) were filled, and all were discharged. The tablespoons (15 ml) were discharged in 14 to 17 times. When the contents M could not be discharged, the mass was measured and the remaining liquid amount was calculated. Therefore, the residual liquid in the discharge container 10 and the residual liquid in the discharge cap 15 are combined and appear in the result.

<Result>
The test results are shown in FIG. From this test result, it was found that when the volume of the gas forming the gas space S is 4% or more of the volume of the inner container 11, the remaining liquid amount of the contents M can be extremely reduced. .

  The present inventor has verified the difference in the viscosity of the contents M in order to check how much the effect of reducing the residual amount by easily discharging all the contents M is different. Here, ponzu jelly was used as the high-viscosity liquid food.

<Test method>
The ponzu jelly was filled in a discharge container and discharged in the same manner as in the test method of Example 1.

<Result>
When the gas space S was 4% or more, the remaining liquid amount of the contents M could be reduced similarly.

<Viscosity measurement result>
Ponzu jelly ・ B-type viscometer Measured at 25 ℃ rotor No.3-12 rotation
3500cp
・ B type viscometer Measured at 25 ℃ rotor No. 3-30 rotations
1840cp

soy sauce
25 ℃, No.1 spindle use, rotation speed 60rpm
Equipment used: Brook Digital Viscometer LVDV-1
Viscosity Brix
・ Soy sauce A: 0.91cP 37.42%
・ Soy sauce B: 0.73cP 32.21%
・ Soy sauce C: 1.05cP 39.37%

  From the viewpoint of facilitating the discharge of all the contents M and reducing the residual amount, it can be said that all the liquid foods that can be discharged are all those having a lower viscosity than the ponzu jelly.

  The present invention is suitable for application to a discharge container having a laminate release structure containing an emulsified liquid, a modified starch mixture, a liquid food, and the like as contents.

DESCRIPTION OF SYMBOLS 10 ... Discharge container 11 ... Inner container 12 ... Outer container 13 ... Container main body 13a ... Mouth part 14 ... Discharge port 15 ... Discharge cap 19 ... Intake hole 31 ... Top surface part 34 ... Outside air introduction hole 41 ... Air valve part 50 ... Gas bag 51 ... Gas chamber M ... Contents S ... Gas space

Claims (7)

A flexible inner container that accommodates the contents and deforms in accordance with a decrease in the contents, and the inner container is provided, and is elastically deformed to suck outside air between the inner container and the inner container. A container body having an outer container in which an intake hole is formed;
A discharge port for discharging contents is formed on the top surface, and a discharge cap attached to the mouth of the container body,
An outside air introduction hole communicating the outside and the intake hole;
A discharge valve comprising: an air valve portion for switching communication between the outside air introduction hole and the intake hole and blocking the air hole;
A gas space is formed by containing gas in the inner container,
The discharge container, wherein the volume of the gas is 4% or more of the volume of the inner container.   2. The discharge container according to claim 1, wherein the gas quickly moves in the inner container when the discharge container is tilted to a discharge posture in order to discharge contents from the discharge port.   The discharge container according to claim 1 or 2, wherein the gas is sealed in a gas bag.   The discharge container according to claim 1, wherein the gas is sealed in a gas chamber formed in the inner container.   The discharge container according to claim 4, wherein the gas chamber is formed at a bottom portion of the inner container.   The discharge container according to any one of claims 1 to 5, wherein the content is a liquid food.   The discharge container according to any one of claims 1 to 6, wherein the content is a soy sauce-containing seasoning.

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