Bottle for dispensing with pressure release

Abstract

To provide a discharge bottle which has a time difference between pressing applied to a container and discharge of a content, and which enables stable discharge.SOLUTION: After increasing a volume of a container body 1 by pressing, a content is discharged by utilizing a restoring force in which the container body 1 returns to an initial volume by pressing releasing, and a time difference is provided between the pressing to the container body 1 and the discharge of the content. That is, a trunk part of the container body 1 includes: pressing parts 41, 42 for increasing the volume of the container body 1 by pressing: and an elastic deformation part 51 deformed by being pressed to change the volume of the container body 1. By introducing the outside air into the container body 1 from an outside air introduction port, and by releasing pressing, the elastic deformation part 51 restores its original shape from its deformed shape to reduce the volume of the container body 1, thereby, the content is discharged.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a bottle for dispensing liquid by releasing pressure, and more particularly to a dispensing bottle for dispensing a content by releasing pressure. [Background technology]

[0002] Containers that store food, seasonings, or the like and discharge the contents by pressing the container are widely used.

[0003] For example, Patent Document 1 proposes a spray container in which the contents are sprayed from the mouth of the container when a certain pressure is applied to the body by pressing the body of the container.

[0004] Furthermore, Patent Document 2 proposes a container in which only a specified portion is deformed when the body of the container is pressed, thereby enabling a constant amount of discharge (fixed-quantity discharge). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2003-24844 A [Patent Document 2] JP 2016-60527 A Summary of the Invention [Problem to be solved by the invention]

[0006] The container described in Patent Document 1 discharges the contents simultaneously when the container is pressed. The relationship among the pressing time, the discharge time of the container's contents, and the integrated discharge amount when such a container is pressed is conceptually shown in FIG. 5. As shown in FIG. 5, in a conventional container (indicated by a broken line), when the container is being pressed, the contents of the container are discharged, and the pressing time while pressing the container and the discharge time while discharging are substantially the same. For this reason, for example, when the contents are liquid seasonings such as dressing and soy sauce, it is necessary to apply while pressing to an object, and there are cases where it is difficult to discharge to the intended location.

[0007] In addition, in the container described in Patent Document 1, as the pressing amount increases, the discharge amount increases. Specifically, as conceptually shown as the prior art in FIG. 6, since the pressing amount and the discharge amount correspond to each other, the discharge force varies depending on the pressure applied to the container. Also, since the required pressure changes due to the decrease in the contents, it was a situation where stable discharge (constant discharge) was difficult.

[0008] The container described in Patent Document 2 enables quantitative discharge by pushing in the convex portion of the container body. However, similar to Patent Document 1, since the pressing of the container and the discharge of the contents are simultaneous, there are cases where it is difficult to discharge to the intended location.

[0009] The present invention has been made in view of the above background, and an object thereof is to provide a discharge bottle having a time difference between the pressing applied to the container and the discharge of the contents, and enabling stable discharge.

Means for Solving the Problems

[0010] The inventors of the present invention conducted intensive studies to solve the above problems. Then, after increasing the volume of the container by pressing, it was found that a time difference can be provided between the pressing of the container and the discharge of the contents by utilizing the restoring force that the container returns to the initial volume when the pressing is released, and the present invention was completed. That is, the present invention is as follows.

[0011] <<Aspect 1>> A pressure-release dispensing bottle having a cap and a container body, the barrel of the container body has a pressing portion for increasing the volume of the container body by pressing, and an elastic deformation portion that deforms by the pressing to change the volume of the container body, The cap has a discharge port for discharging the contents, The cap or the container body has an outside air inlet for introducing outside air, By pressing the pressing portion, the elastic deformation portion is deformed in an outward direction of the container body, thereby increasing the volume of the container body, thereby introducing outside air into the container body from the outside air inlet port; and By releasing the pressure, the elastic deformation portion returns to its original state from the deformation, thereby reducing the volume of the container body, thereby discharging the content. Bottle for dispensing when released from pressure. Aspect 2 2. The pressure-release dispensing bottle according to claim 1, wherein the discharge port also serves as the outside air inlet. Aspect 3 The pressing portion has two or more pressing portions, and When each of the two or more pressing parts is pressed and the pressing is released to discharge the contents, the amount of the contents discharged is different for each of the two or more pressing parts. 3. The pressure-release dispensing bottle according to claim 1 or 2. Aspect 4 A pressure-release dispensing bottle according to aspect 3, wherein the dispensing amount corresponding to each of the two or more pressing portions is displayed on or near each of the two or more pressing portions. Aspect 5 5. The pressure-release dispensing bottle according to any one of Aspects 1 to 4, wherein the elastically deforming portion has a convex shape that protrudes outward from the container body. Aspect 6 5. The pressure-release dispensing bottle according to any one of Aspects 1 to 4, wherein the elastically deforming portion has a concave shape that protrudes inwardly from the container body. Aspect 7 7. The pressure-release dispensing bottle according to any one of aspects 1 to 6, wherein the elastic deformation portion has a deformation inducer for inducing deformation. Aspect 8 The pressure-release dispensing bottle according to any one of aspects 1 to 7, wherein the discharge port is provided with a check valve. Aspect 9: The bottle for pressure-release dispensing according to any one of aspects 1 to 8, which indicates that the content is dispensed by pressing the pressing portion and then releasing the pressure. Aspect 10 A pressure-release dispensing bottle according to any one of aspects 1 to 9, in which the pressing portion is pressed and then released to dispense the contents, and at the same time, the elastic deformation portion is pressed, causing the elastic deformation portion to deform inwardly of the container body, thereby reducing the volume of the container body, thereby dispensing the contents simultaneously with the pressing. Aspect 11 A pressure-release dispensing bottle according to aspect 10, which indicates that the content is dispensed by pressing the elastic deformation portion. Effect of the Invention

[0012] The bottle of the present invention has a time lag between pressing the container and discharging the contents. Specifically, as shown in FIG. 5, the contents are not discharged when the container is pressed, but are discharged from the time of release of pressure after the pressing is completed, and there is a time lag between pressing and discharging. Therefore, the contents can be discharged to the intended location with plenty of time to spare. Therefore, for example, it is possible to evenly pour liquid seasonings such as dressing and soy sauce over the target object.

[0013] In addition, the bottle of the present invention has a discharge speed of the contents that does not depend on the pressure applied to the container. Therefore, even if the pressure speed is high, the discharge time can be extended by limiting the discharge speed, and slow discharge can be performed. Even if the pressure speed is high, excessive discharge can be avoided by slowing down the discharge speed. Therefore, for example, when the bottle of the present invention is used for seasonings such as soy sauce, it is possible to easily realize the limit of the amount used due to requests such as reducing salt.

[0014] In addition, the bottle of the present invention discharges the content in an amount equivalent to the increase in the volume of the container due to pressure applied to the container, and the amount of content discharged is relatively constant. Specifically, as shown in the graph of the present invention in Fig. 6, in the region where the amount of pressure applied to the container is small, the amount of increase in the volume of the container increases as the amount of pressure increases, and the amount of discharge increases accordingly. Then, when the amount of increase in the volume of the container reaches an upper limit (when the container cannot increase its volume any further), even if the amount of pressure increases, the amount of increase in the volume of the container remains constant, and the amount of discharged also remains constant accordingly.

[0015] Therefore, after the volume increase of the container reaches the upper limit, even if the pressing force applied to the container or the pressing amount corresponding to this pressure is different, a constant amount can be discharged (fixed amount discharge), and even if the pressing force is large, excessive discharge can be avoided. Therefore, for example, when the bottle of the present invention is used for seasonings such as soy sauce, it is possible to easily realize the restriction of the amount used due to requests for reducing salt, etc.

[0016] Furthermore, by optimizing the size and shape of the discharge port of the bottle of the present invention, the discharge time and discharge form can be controlled, making it possible, for example, to discharge for a long period of time or to spray in a mist.

[0017] Furthermore, by changing the location of pressure applied to the bottle of the present invention, it is possible to apply pressure to the container to reduce its volume. This makes it possible to simultaneously apply pressure to the container and eject the contents, as with conventional containers, and allows the selection of time-delayed ejection or simultaneous ejection according to the intended use and circumstances of use. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a perspective view of a bottle of the present invention according to one embodiment. [Diagram 2] FIG. 1 is a perspective view of a bottle cap according to one embodiment of the present invention. [Diagram 3] FIG. 2 is a cross-sectional view of the body of the bottle of the present invention according to one embodiment. [Figure 4] FIG. 2 is a cross-sectional view of the body of the bottle of the present invention according to one embodiment. [Diagram 5] 1 is a graph showing the relationship between pressing time, discharge time of the contents of the container, and the cumulative discharge amount for the bottle of the present invention and the bottle of the prior art. [Figure 6] 1 is a graph conceptually showing the relationship between the amount of pressure applied and the amount of discharge for the bottle of the present invention and the bottle of the prior art. [Figure 7] FIG. 2 is a conceptual diagram showing a mechanism for increasing the volume of a container by pressing in the bottle of the present invention. [Figure 8] FIG. 2 is a perspective view of a bottle used in the examples. [Figure 9] FIG. 2 is a perspective view of a bottle used in a comparative example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] <Function of the Pressure Release Dispensing Bottle> The bottle for dispensing by pressure release of the present invention increases the volume of the container by pressure, and then dispenses the contents by utilizing the restoring force that causes the container to return to its initial volume when the pressure is released, thereby creating a time lag between the pressure on the container and the dispensing of the contents.

[0020] Specifically, by pressing the pressing portion provided on the barrel of the container body, the elastic deformation portion of the barrel of the container body is deformed toward the outside of the container body, increasing the volume of the container body, thereby introducing outside air into the container body through the outside air inlet, and by releasing the pressing portion, the elastic deformation portion returns to its original state from deformation, reducing the volume of the container body, thereby ejecting the contents.

[0021] This will be conceptually explained with reference to Fig. 7. The elastic deformation part 800 of the container body body having a cross-sectional shape as shown in Fig. 7(a) is pressed as shown by the white arrow in Fig. 7(b) to increase the cross-sectional area, i.e., the elastic deformation part 800 is deformed in the outward direction of the container body body, and the shape of the container body body is made closer to a circle, thereby increasing the volume of the container body. Furthermore, by releasing this pressure, the elasticity of the elastic deformation part 800 of the container body body returns the container body from the state shown in Fig. 7(b) to the state shown in Fig. 7(a), thereby reducing the volume of the container body, and thereby discharging the contents.

[0022] In addition to the time-delayed ejection caused by pressing the pressing part as described above, the pressure-release ejection bottle of the present invention can also press a part of the container body other than the pressing part, for example pressing an elastically deforming part, which deforms inwardly of the container body to reduce the volume of the container, thereby making it possible to simultaneously press the container and eject the contents, as with containers of conventional technology.

[0023] This will be conceptually explained with reference to Fig. 7. By pressing the elastically deforming portion 800 of the container body barrel having a cross-sectional shape as shown in Fig. 7(a) as shown by the white arrow in Fig. 7(c), the cross-sectional area is reduced, that is, the elastically deforming portion 800 is deformed inwardly of the container body barrel, and the shape of the container body barrel is moved away from a circular shape, thereby reducing the volume of the container body and enabling the contents to be discharged.

[0024] Therefore, the time-delayed ejection and the simultaneous ejection can be selected according to the purpose of use and the situation of use.

[0025] <Configuration of the bottle for dispensing by releasing the pressure> The bottle for pressure-release dispensing of the present invention comprises a cap and a container body, and the barrel of the container body has a pressing portion for increasing the volume of the container body by pressure, and an elastic deformation portion that deforms by pressure to change the volume of the container body.

[0026] The cap also has a discharge port for discharging the contents, and the cap or the container body has an outside air inlet port for introducing outside air.

[0027] Fig. 1 shows a perspective view of a bottle for pressure-released dispensing according to one embodiment. Fig. 2 shows a perspective view of the cap of the bottle for pressure-released dispensing shown in Fig. 1. The bottle 100 for pressure-released dispensing comprises a container body 1 and a cap 2. The bottom surface of the container body 1 of the bottle 100 for pressure-released dispensing is elliptical, and the container body 1 has a trunk portion whose cross section is elliptical with a major axis and a minor axis.

[0028] The trunk of the container body 1 includes pressing portions 41 and 42 for increasing the volume of the container body 1 when pressed, and elastic deformation portions 51 and 52 that deform when pressed to change the volume of the container body.

[0029] In the bottle 100 for dispensing by releasing pressure, the discharge port for dispensing the contents is used as both a discharge port and an outside air inlet for introducing outside air. As shown in Figures 1 and 2, the discharge port / outside air inlet 3 is a cylindrical tube, one end of which protrudes from the cap 2 to the outside air, and the other end of which is disposed so as to extend into the inside of the container body 1.

[0030] The bottle for dispensing by pressure release of the present invention may have written somewhere on the bottle that the content is dispensed by pressing the pressing part and then releasing the pressure. For example, the written information may be on the pressing part itself or in the vicinity thereof, and may state that the content is dispensed with a time lag after pressing.

[0031] Furthermore, the pressure-release dispensing bottle of the present invention may have written on it somewhere on the bottle that the content is dispensed by pressing the elastically deforming part. For example, it may be written on the elastically deforming part itself or in its vicinity, and the written content may state that the content is dispensed simultaneously with pressing.

[0032] <Container body> The container body constituting the pressure-release dispensing bottle of the present invention may be a single layer or a laminate, and is generally made of a laminate. The material thereof is not particularly limited, and may be, for example, a resin that can be blow molded and has a restorable flexibility.

[0033] Examples of such resins include polyolefin resins such as low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), medium-density polyethylene resin (MDPE), high-density polyethylene resin (HDPE), polypropylene resin (PP), ethylene-propylene copolymer, ethylene-vinyl alcohol copolymer, and ethylene-cyclic olefin copolymer, and polyamide resins such as nylon. These resins may be used alone or in combination of two or more. If necessary, additives for imparting functionality may be added.

[0034] In particular, ethylene-vinyl alcohol copolymer (EVOH) has excellent oxygen barrier properties, so by providing a layer containing EVOH, it is possible to block contact between the contents filled in the container body and oxygen, thereby suppressing oxidative deterioration of the contents.

[0035] The shape of the container body is not particularly limited as long as it can be changed by pressing. For example, the bottle 100 for pressure-release dispensing shown in Fig. 1 may have a body part whose cross section is an ellipse having a major axis and a minor axis. The body part may be a polygonal column or a polygonal shape tapered at the tip, but it is preferable that the cross section has a major axis and a minor axis so that the elastic deformation part described later can be easily deformed when pressed.

[0036] The thickness of the container body is not particularly limited as long as the shape can be changed by pressing, and may be, for example, 300 to 1500 μm.

[0037] (Pressing part) The pressing portion of the barrel of the container body is a region for increasing the volume of the container body by pressing. In the pressure-release dispensing bottle of the present invention, pressing is generally performed by gripping the container body with fingers and applying force.

[0038] 1 is provided with two pressing parts (pressing part 41 and pressing part 42) on the container body 1. The pressing part 41 and pressing part 42 are symmetrically arranged on both ends of the long axis in the cross section of the container body 1. They have approximately the same shape and are provided as a concave shape protruding inward of the container body 1.

[0039] 1, the volume of the container body 1 is increased by, for example, pinching and gripping the pressing parts 41 and 42 between the thumb and the other fingers and applying a force inwardly of the container body 1 in the longitudinal direction of the container body 1. The increase in the volume of the container body 1 is achieved by elastic deformation parts 51 and 52, which will be described later, deforming outwardly of the container body 1 when pressed.

[0040] In the bottle for pressure-release dispensing of the present invention, the number of pressing parts is not particularly limited as long as it is at least 1. When there are two or more pressing parts, they may be of the same shape and provided at symmetrical positions on the body of the container body, as shown in bottle 100 for pressure-release dispensing in Fig. 1.

[0041] Alternatively, in the case of having two or more pressing parts, when each of the two or more pressing parts is pressed and the pressure is released to discharge the contents, the amount of the contents discharged may be different for each of the two or more pressing parts. That is, the amount of increase in the volume of the container body when pressed may be different for each of the two or more pressing parts, and the amount of the contents discharged may be different by appropriately selecting a pressing point from the two or more pressing parts.

[0042] If the amount of content dispensed is different for each of the two or more pressurized portions, the amount of content dispensed corresponding to each of the two or more pressurized portions may be indicated on or near each of the two or more pressurized portions.

[0043] The shape of the pressing part is not particularly limited as long as it can deform the elastic deformation part described below outwardly from the container body by pressing, thereby increasing the volume of the container body. If the pressing part deforms more than the elastic deformation part by pressing, it becomes difficult to achieve the effect of the present invention, that is, time-delayed ejection, so it is preferable that the amount of deformation of the pressing part is as small as possible, and therefore it is desirable that the pressing part has a convex shape toward the inside of the container body.

[0044] (Elastic deformation part) The elastic deformation portion provided in the body of the container body is a region that deforms when pressed to change the volume of the container body. When the elastic deformation portion deforms toward the outside of the container body, it increases the volume of the container body. On the other hand, when the elastic deformation portion deforms toward the inside of the container body, it decreases the volume of the container body.

[0045] Specifically, in the pressure-release dispensing bottle of the present invention, when the pressure portion is pressed, the elastic deformation portion deforms toward the outside of the container body, increasing the volume of the container body, thereby introducing outside air into the container body through the outside air inlet.

[0046] On the other hand, in the pressure-release dispensing bottle of the present invention, if pressure is applied to something other than the pressing portion, for example the elastic deformation portion itself, the elastic deformation portion deforms toward the inside of the container body, reducing the volume of the container body, thereby dispensing the contents.

[0047] 1 is provided with two elastic deformation parts (elastic deformation parts 51 and 52) on the container body 1. The elastic deformation parts 51 and 52 are symmetrically arranged on both ends of the minor axis in the cross section of the container body 1. The shapes of the elastic deformation parts 51 and 52 are substantially the same, and are provided as convex shapes that protrude outward from the container body 1.

[0048] When the pressure-release dispensing bottle 100 shown in FIG. 1 is grasped, for example, between the thumb and fingers at pressing portions 41 and 42, and a force is applied in the inward direction of the container body 1 in the longitudinal direction of the container body 1, the elastic deformation portions 51 and 52 are deformed outward from the container body 1 by the pressure, and the volume of the container body 1 increases.

[0049] In the bottle for pressure-release dispensing of the present invention, the number of elastic deformation parts is not particularly limited as long as it is at least 1. When there are two or more elastic deformation parts, they may be of the same shape and provided at symmetrical positions on the body of the container body, as shown in bottle 100 for pressure-release dispensing in Fig. 1.

[0050] The shape of the elastic deformation part is not particularly limited as long as the elastic deformation part can deform in the outward direction of the container body and increase the volume of the container body when the pressing part is pressed. The elastic deformation part may have a convex shape protruding outward from the container body, or a concave shape protruding inward from the container body.

[0051] The shape of the elastically deforming portion will be described with reference to Figures 3 and 4. Figures 3 and 4 are cross-sectional views of the body of a pressure-release dispensing bottle according to one embodiment of the present invention.

[0052] Fig. 3 shows a pressure-released dispensing bottle 200, which includes pressing parts 43 and 44, and elastic deformation parts 53 and 54, which are symmetrically arranged on the barrel of a container body. In the pressure-released dispensing bottle 200 shown in Fig. 3, the elastic deformation parts 53 and 54 have a convex shape that protrudes outward from the container body.

[0053] Fig. 4 shows a pressure-released dispensing bottle 300, which includes pressing parts 45 and 46, and elastic deformation parts 55 and 56, which are symmetrically arranged on the barrel of a container body. In the pressure-released dispensing bottle 300 shown in Fig. 4, the elastic deformation parts 55 and 56 have a concave shape that protrudes inward from the container body.

[0054] The elastically deformable portion may have a deformation guide for inducing deformation. The deformation guide is not particularly limited, and examples thereof include a rib and a marking line.

[0055] In the pressure-release dispensing bottle 100 shown in FIG. 1, the elastic deformation portions 51 and 52 are provided with cross-shaped marking lines, which allows the bottle to be deformed more easily.

[0056] <Cap> The cap constituting the pressure-release dispensing bottle of the present invention is not particularly limited, and may be a cap of a known shape made of a known material.

[0057] The cap may be made of, for example, a resin whose main component is polypropylene.

[0058] (Discharge port) The cap constituting the pressure-release dispensing bottle of the present invention has a discharge port for dispensing the content.

[0059] The shape and size of the discharge port are not particularly limited and can be appropriately designed depending on the application. In the present invention, the size and shape of the discharge port can be optimized to control the discharge time and discharge form, and for example, it is possible to discharge for a long time or to spray in a mist.

[0060] In the bottle for dispensing by pressure release of the present invention, the discharge port for the contents may be used in combination with an outside air inlet, which will be described later. In the bottle 100 for dispensing by pressure release shown in Fig. 1, the discharge port for dispensing the contents is used in combination with an outside air inlet for introducing outside air.

[0061] The bottle for dispensing by releasing pressure of the present invention may be provided with a valve at the discharge port of the contents. By providing the valve, it is possible to prevent the contents from accidentally dripping when the container is turned upside down. For example, when the discharge port of the contents is also used as an outside air inlet, it is possible to introduce outside air by pressing the pressing part, but to prevent the contents from moving.

[0062] (Outside air intake) The pressure-release dispensing bottle of the present invention has an outside air inlet port in the cap or the container body for introducing outside air.

[0063] The outside air inlet becomes an inlet for outside air to be introduced into the inside of the container body when the pressing portion of the pressure-release dispensing bottle of the present invention is pressed, causing the elastic deformation portion to deform toward the outside of the container body and increasing the volume of the container body.

[0064] The structure of the outside air inlet is not particularly limited as long as it can introduce outside air into the inside of the container body. For example, it may be a simple hole or a tube structure extending into the inside of the container body.

[0065] The outside air inlet may also be provided with a check valve, which allows outside air to be introduced but prevents the contents from leaking out of the container.

[0066] The position of the outside air inlet is not particularly limited. For example, it may be located in the cap of the bottle for pressure release and discharge, or in the neck, shoulder, body, or bottom of the container body. In the case where the outside air inlet is used as both the outside air inlet and the discharge port for the contents, it may be located in the cap.

[0067] <Contents> The contents that can be filled into the pressure-release dispensing bottle of the present invention are not particularly limited, but examples thereof include medicines, quasi-drugs, cosmetics, detergents, foods, paints, etc.

[0068] Examples of pharmaceuticals and quasi-drugs include injections, drip infusions, infusions, perfusions, and decoctions. Examples of cosmetics include shampoos, conditioners, and hair styling products (e.g., hair water, hair liquid, and grease). Examples of detergents include neutral detergents, alkaline detergents, and acidic detergents. Examples of foods include beverages, edible oils, soups, creams, and liquid seasonings (e.g., soy sauce, vinegar, noodle soup, sukiyaki, mirin, Worcestershire sauce, ketchup, Tabasco, and sweeteners). Examples of paints include paints, varnishes, and oil stains, and those with low viscosity are particularly preferred.

[0069] The present invention will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to these.

[0070] Example 1 <Preparation of a bottle for dispensing by releasing the pressure> A pressure-release dispensing bottle of the embodiment shown in FIG. 8 was produced.

[0071] The produced bottle for dispensing by pressure release comprises a container body and a cap. The bottom surface of the container body is elliptical, and the container body has a barrel portion whose cross section is elliptical with a major axis and a minor axis.

[0072] The barrel of the container body is provided with two pressing portions for increasing the volume of the container body when pressed, and two elastic deformation portions that deform when pressed to change the volume of the container body.

[0073] The two pressing parts are symmetrically arranged at both ends that become the major axis in the cross-section of the container body, and their shapes are substantially the same, and they are provided as concave shapes protruding inside the container body. Also, the two elastic deformation parts are symmetrically arranged at both ends that become the minor axis in the cross-section of the container body, and their shapes are substantially the same, and they are provided as convex shapes protruding outside the container body. Further, the two elastic deformation parts are provided with cross-shaped scratch lines as deformation guides for inducing deformation.

[0074] The cap is provided with a cylindrical tube that serves as both a discharge port for discharging the contents and an outside air introduction port for introducing outside air. One end of the tube protrudes from the cap to the outside air, and the other end is arranged to extend into the inside of the container body. Note that the diameter of the discharge port / outside air introduction port is φ0.9 mm.

[0075] <Evaluation> The following evaluations were carried out on the produced pressing-release discharge bottle. The results are shown in Table 1.

[0076] (Measurement of container mass) The mass of the produced pressing-release discharge bottle was measured.

[0077] (Measurement of full-scale mass) Water was injected up to the marked line of the bottle, and the mass of the bottle filled with water up to the marked line (full-scale mass) was measured.

[0078] (Measurement of full-scale mass during pressing) For the full-scale marked bottle, by pressing the center of each of the two pressing parts, the two elastic deformation parts were deformed in the outer direction of the container body to increase the volume of the container body, and the mass of the bottle after injecting water up to the marked line with respect to the liquid level that had dropped from the marked line (full-scale mass during pressing) was measured.

[0079] (Increased mass) The increased mass was obtained from the difference between the measurement result of the full-scale mass during pressing and the measurement result of the full-scale mass.

[0080] (Checking time difference discharge and average discharge time after decompression) The bottle was turned upside down and the center of each of the two pressing parts was pressed, which caused the two elastic deformation parts to deform outward from the container body, increasing the volume of the container body, and thus introducing outside air into the container body through the outside air inlet. Next, the pressure was released to check whether the water content was discharged, and the following evaluations were performed, while the discharge time after pressure release was measured. The discharge time was the time until the discharge of water from the bottle was completely completed, and the average time was calculated as the average discharge time after pressure release. The measurements were performed the number of times shown in Table 1. ◯: The contents were not discharged when pressed, but were discharged after the pressure was released. ×: The contents were discharged immediately after pressing, with no time lag in discharge.

[0081] (Confirmation of fixed quantity discharge stability and average discharge amount) As the quantitative discharge stability, the amount of water discharged (discharge amount) during the measurement of the average discharge time after pressure release was measured, the difference between the maximum and minimum values ​​was calculated, and the evaluation was performed according to the following evaluation criteria. The average value of the discharge amount was calculated, and the average discharge amount was calculated. Furthermore, the standard deviation of the discharge amount was calculated. ◎: The difference in discharge amount is less than 0.5g ○: The difference in discharge amount is 0.5g or more and less than 1.0g △: The difference in discharge amount is 1.0g or more and less than 1.5g ×: The difference in discharge amount is 1.5 g or more. -: The discharge amount is unstable and not suitable for evaluation.

[0082] Comparative Example 1 <Pressure discharge bottle production> A pressure-dispensing bottle having the configuration shown in FIG. 9 was produced.

[0083] The pressure-dispensing bottle thus produced comprises a container body and a cap. The bottom surface of the container body is elliptical, and the container body has a barrel portion whose cross section is elliptical with a major axis and a minor axis.

[0084] However, the barrel of the container body was not provided with a pressing portion for increasing the volume of the container body by pressing.

[0085] The cap was provided with a cylindrical tube that served as a discharge port for discharging the contents, with one end of the tube protruding from the cap to the outside air and the other end extending into the inside of the container body. The diameter of the discharge port was φ0.9 mm, the same as the bottle for discharging by pressure release prepared in Example 1.

[0086] <Evaluation> The prepared pressure-dispensing bottle was evaluated in the same manner as in Example 1. However, since the bottle prepared in Comparative Example 1 did not have a pressing part, the measurement of the mass filled with the mark when pressed, confirmation of the time difference in dispensing, measurement of the average dispensing time after releasing the pressure, and confirmation of the stability of the fixed-quantity dispensing were performed by pressing two places in the center of the container body. The results are shown in Table 1.

[0087] Example 2 <Preparation of a bottle for dispensing by releasing the pressure> Similarly to Example 1, a pressure-release dispensing bottle having the configuration shown in FIG. 8 was produced.

[0088] <Evaluation> The prepared bottle for dispensing by releasing pressure was evaluated in the same manner as in Example 1. However, in Example 2, the measurement of the mass filled with the mark when pressed, the confirmation of the time difference in dispensing, the measurement of the average dispensing time after releasing pressure, and the confirmation of the stability of the constant amount dispensing were performed by pressing the ends of the two pressing parts. The results are shown in Table 1.

[0089] [Table 1]

[0090] 《Consideration》 The pressure-release discharge bottles of the present invention produced in Examples 1 and 2 were able to realize time-delay discharge and also constant-amount discharge. On the other hand, in the bottle produced in Comparative Example 1, the liquid level rose due to pressure, and the liquid level exceeded the marked line when pressed. For this reason, time-delay discharge was not possible, and discharge occurred simultaneously with pressing. In addition, there was a large variation in the discharge amount, making it difficult to discharge a constant amount. [Explanation of symbols]

[0091] 100, 200, 300 Pressure release dispenser bottle 1 Container body 2 Cap 3. Outlet and fresh air intake 41, 42, 43, 44, 45, 46 Pressing part 51, 52, 53, 54, 55, 56, 800 Elastic deformation part

Claims

1. A pressure-release dispensing bottle having a cap and a container body, the barrel portion of the container body has two or more pressing portions for increasing the volume of the container body by pressing, and an elastic deformation portion that deforms by the pressing to change the volume of the container body, The cap has a discharge port for discharging the contents, The cap or the container body has an outside air inlet for introducing outside air, By pressing each of the two or more pressing portions, the elastic deformation portion is deformed in an outward direction of the container body, thereby increasing the volume of the container body, thereby introducing outside air into the container body from the outside air inlet port; By releasing the pressure, the elastic deformation portion returns to its original state from the deformation, thereby reducing the volume of the container body, thereby discharging the content; and When each of the two or more pressing parts is pressed and the pressing is released to discharge the contents, the amount of the contents discharged is different for each of the two or more pressing parts. Bottle for dispensing when released from pressure.

2. 2. The bottle for dispensing with pressure release according to claim 1, wherein a dispensing amount corresponding to each of the two or more pressing portions is indicated on or near each of the two or more pressing portions.

3. A pressure-release dispensing bottle having a cap and a container body, the barrel of the container body has a pressing portion for increasing the volume of the container body by pressing, and an elastic deformation portion that deforms by the pressing to change the volume of the container body, The cap has a discharge port for discharging the contents, The cap or the container body has an outside air inlet for introducing outside air, By pressing the pressing portion, the elastic deformation portion is deformed in an outward direction of the container body, thereby increasing the volume of the container body, thereby introducing outside air into the container body from the outside air inlet port; By releasing the pressure, the elastic deformation portion returns to its original state from the deformation, thereby reducing the volume of the container body, thereby discharging the content; and It is stated that the content is discharged by pressing the pressing portion and then releasing the pressing. Bottle for dispensing when released from pressure.

4. 4. The pressure-release dispensing bottle according to claim 1, wherein the discharge port also serves as the outside air inlet.

5. 5. The pressure-release dispensing bottle according to claim 1, wherein the elastically deforming portion has a convex shape that protrudes outward from the container body.

6. 5. The pressure-release dispensing bottle according to claim 1, wherein the elastically deforming portion has a concave shape that protrudes inwardly from the container body.

7. 7. The pressure-release dispensing bottle according to claim 1, wherein the elastic deformation portion has a deformation inducer for inducing deformation.

8. The pressure-release dispensing bottle according to any one of claims 1 to 7, wherein the discharge port is provided with a check valve.

9. A pressure-release dispensing bottle as described in any one of claims 1 to 8, in which the pressing portion is pressed and then released to dispense the contents, and at the same time, the elastic deformation portion is pressed, thereby deforming the elastic deformation portion in the inward direction of the container body to reduce the volume of the container body, thereby dispensing the contents simultaneously with the pressing.

10. 10. The pressure-release dispensing bottle according to claim 9, which is marked to cause the content to be dispensed by pressing the elastically deformable portion.

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