Push-out container and food

Abstract

To make it possible to recycle a container body using an EVOH and to provide both preservability of a content and extrudability of the content.SOLUTION: An elastically deformable container body made of a synthetic resin into which air can flow is used between an outer bag and an inner bag. The inner bag includes an EVOH layer as a barrier layer that is less permeable to oxygen than the outer bag, and an inner layer disposed inside the EVOH layer. The content of the EVOH layer is 5 wt.% or less based on the weight of the container body, the thickness of the EVOH layer is 16 μm≤EVOH≤24 μm, the thickness of the outer bag is ≥409 μm, and the thickness of the outer bag is 2.7 times the thickness of the inner bag≤3.4 times the thickness of the inner bag.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a squeeze container having a container body made of an elastically deformable synthetic resin including an inner bag and an outer bag, in which the contents are squeezed out of the container body by squeezing the container body. The present invention also relates to a food product in which mayonnaise is accommodated in the squeeze container. [Background technology]

[0002] Synthetic resin products require raw materials to be recyclable. In multi-layered synthetic resin film products that use EVOH as a gas barrier layer, other layers generally contain synthetic resins such as polyethylene. Guidelines from European industry organizations such as CEFLEX stipulate that one of the conditions for making a synthetic resin product recyclable is to limit the EVOH content to 5% by weight or less of the total product weight.

[0003] A double-layered container with an EVOH layer is known as an extrusion container for synthetic resin products (Patent Document 1). The double-layered container has an inner bag composed of an EVOH layer and an inner layer, and an outer bag that is an outer layer of the inner bag. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2017-165452 Summary of the Invention [Problem to be solved by the invention]

[0005] To reduce the EVOH layer to 5% by weight or less of the entire extrusion container, for example, the EVOH layer can be made thinner or the outer bag can be made thicker. However, if the EVOH layer is made too thin, the contents will not last as long. On the other hand, if the outer bag is made too thick, the extrusion container will become hard, making it difficult to extrude the contents.

[0006] The present invention was created in consideration of the above circumstances, and its object is to provide a squeeze container that is suitable for recycling and has both good preservation properties and extrudability of the contents. Another object of the present invention is to provide a food product in which mayonnaise is contained in a squeeze container. [Means for solving the problem]

[0007] The squeeze container of the present invention comprises a container body made of an elastically deformable synthetic resin, which allows air to flow between the laminated outer bag and inner bag. The contents are squeezed out of the container body by squeezing the container body. The inner bag comprises an EVOH layer as a barrier layer that is less permeable to oxygen than the outer bag, and an inner layer disposed inside the EVOH layer. The EVOH layer content is 5 wt% or less of the weight of the container body. The thickness of the EVOH layer is 16 μm≦EVOH layer thickness≦24 μm. The thickness of the outer bag is ≧409 μm, and 2.7 times the thickness of the inner bag≦thickness of the outer bag≦3.4 times the thickness of the inner bag.

[0008] The thickness of the outer bag should preferably be in the following relationship with the thickness of the inner bag: 2.7 times the thickness of the inner bag ≦ outer bag thickness ≦ 3.0 times the thickness of the inner bag.

[0009] The thickness of the outer bag is preferably set as follows: The thickness of the outer bag is set to ≦498 μm. It is more preferable that the thickness of the outer bag is set to ≦459 μm.

[0010] The container body is preferably shaped as follows. The container body has a bottom, a cylindrical body extending upward from the edge of the bottom, a shoulder extending inward in the diameter direction from the upper end of the body, and a neck protruding upward from the inner periphery of the shoulder. When viewed from above, the outer shape of the body is elliptical, with its width in the left-right direction longer than its length in the front-to-back direction, and is positioned outward from the outer shape of the shoulder. Furthermore, the container body has an outer diameter of the neck of φ, a width in the left-right direction of X, a length in the front-back direction of Y, and an overall height in the up-down direction of Z, where φ:X:Y:Z=1:1.6-2.0:2.4-2.8:5.5-5.9.

[0011] In order to make the container body easier to recycle, it is desirable that the outer bag be made of the following materials: polypropylene resin and low-density polyethylene resin. To facilitate recycling of the container body, the inner layer of the inner bag is preferably formed as follows: The inner layer comprises an adhesive layer and a layer made of low-density polyethylene laminated in order on the inside of the EVOH layer.

[0012] The molar fraction of ethylene contained in the EVOH layer is set, for example, as follows: 27 mol%≦the molar fraction of ethylene contained in the EVOH layer≦29 mol%. The weight of the container body is set, for example, as follows: 12.54 g≦weight of container body≦13.13 g.

[0013] Furthermore, from the viewpoint of ease of extrusion, it is desirable that the force applied to the container body when the contents are extruded be as follows. In addition to the container body, the extrusion container has a cap fixed to the container body. The cap has an outlet with an opening area smaller than that of the neck of the container body. When crushing the container body, a bar protruding to the left and right of the container body is used, and the container body is laid on a table with the front and back directions facing up and down. The force applied to the bar when the bar crushes the most expanded part of the container body is defined as the compression force. The displacement of the bar from the start of crushing the container body until it is completely crushed is defined as the total displacement. The compression force at a displacement of half the total displacement is ≦20.5 N.

[0014] The food product of the present invention includes the above-mentioned extruding container and mayonnaise contained in the extruding container. [Effects of the Invention]

[0015] The squeeze container of the present invention has an EVOH layer content in the container body that is suitable for recycling of raw materials, and according to the results of a taste sensory test, the contents can be kept fresh for 3 months under the test conditions, and according to the results of a sensory test when the container body is crushed, the contents can be easily squeezed out. [Brief explanation of the drawings]

[0016] [Figure 1] 1A to 1D are a front view, a side view, a plan view, and a bottom view showing a container body used in a container according to a first embodiment of the present invention. [Figure 2] 1A and 1B are a front view and a bottom view of the container body showing the positions where the thickness is measured. [Figure 3] Figures (A) and (B) are a front view and a side view showing a test method for measuring the compressive force when a container is crushed. DETAILED DESCRIPTION OF THE INVENTION

[0017] As shown in FIG. 3, the squeeze container 1 of the first embodiment of the present invention mainly comprises a container body 2 for accommodating the contents, and a cap 3 detachably attached to the container body 2.

[0018] As shown in FIG. 1, the container body 2 includes a neck portion 21 that penetrates in the vertical direction, a shoulder portion 22 that extends outward in the diameter direction from the lower end of the neck portion 21, a cylindrical body portion 23 that extends downward from the outer periphery of the shoulder portion 22, and a bottom portion 24 that closes the lower end of the body portion 23.

[0019] When viewed from above, the outer shape of the neck 21 is spaced apart and further inward than the outer shape of the body 23. More specifically, when viewed from above, the outer shapes of the neck 21 and shoulder 22 are circular, and the outer shape of the body 23 is elliptical. When viewed from above, the center points of the outer shapes of the neck 21, shoulder 22, and body 23 are the same. The direction of a line parallel to the major axis of the elliptical outer shape of the body 23 is referred to as the "left-right direction," and the direction of a line parallel to the minor axis of the ellipse is referred to as the "front-rear direction." The direction in which the major axis extends is referred to as the "long axis direction." The direction in which a line passing through the center of the neck 21 extends is referred to as the "diameter direction." When viewed from above, due to the relationship between the major and minor axes, the outer shape of the body 23 has a maximum dimension in the left-right direction (width) that is greater than the maximum dimension in the front-rear direction (length). When viewed from the front-to-back direction, the left and right sides of the body 23 bulge in an arc. When viewed from the left-to-right direction, the front and rear sides of the body 23 bulge in an arc. However, the degree of bulging of the left and right sides of the body 23 is much greater than the degree of bulging of the front and rear sides. The left-right dimension of the body 23 increases from the upper end (the outer periphery of the shoulder 22) downward, and then decreases downward until it reaches the lower end (the outer periphery of the bottom 24).

[0020] When viewed from the left-right direction, the bottom 24 has a shape with a central portion concave upward. The concave shape is an upside-down V. When viewed from below, the outer shape of the bottom 24 is spaced further inward than the outer shape of the body 23. More specifically, when viewed from below, the outer shape of the bottom 24 is elliptical. When viewed from below, the center points of the outer shapes of the bottom 24 and the body 23 coincide. When viewed from below, the long axis of the bottom 24 and the long axis of the body 23 are located on the same line. The maximum dimension of the bottom 24 in the left-right direction is greater than the maximum dimension in the front-to-back direction. Both ends of the long axis of the bottom 24 are located to the left and right of the position directly below the shoulder 22 (outside the diameter direction of the neck 21), and both ends of the short axis of the bottom 24 are located at approximately the same position as the position directly below the shoulder 22.

[0021] The shoulder portion 22 has an annular shape when viewed from above, and is substantially perpendicular to the vertical direction. The neck portion 21 is cylindrical and has a male thread formed on its outer periphery. The outer diameter of the neck portion 21 is largest at the male thread portion. When referring to the outer diameter of the neck portion 21 in comparison with other portions, the outer diameter of the neck portion 21 refers to the outer diameter of the male thread portion. Excluding the male thread of the neck portion 21, the container body 2 is symmetrical when viewed in the up-down, left-right, and front-to-back directions. In the example of Figure 1, the container body 2 has a ratio of φ:X:Y:Z=25.1:66:46:143.9 (units: mm), where φ is the outer diameter of the neck portion 21, X is the width in the left-to-right direction, Y is the vertical width in the front-to-back direction, and Z is the overall height in the up-to-down direction. Using φ as the reference, in the example of Figure 1, the ratio is φ:X:Y:Z=1:1.8:2.6:5.7. The container body 2 may have a shape similar to the example in Fig. 1, so the ratios are φ:X:Y:Z=1:1.6-2.0:2.4-2.8:5.5-5.9. Note that the numerical values ​​shown in this specification are values ​​rounded off to the nearest digit.

[0022] The container body 2 is formed by blow molding and is elastically deformable. The container body 2 comprises an inner bag 5 that forms the inner layer of the container body 2, and an outer bag 6 that forms the outer layer of the container body 2. The outer bag 6 overlaps the outside of the inner bag 5.

[0023] The outer bag 6 is single-layered or multi-layered. Each layer is formed from a single material or a mixture of multiple materials. The material used for the outer bag 6 is polyolefin resin. Specifically, the material used for the outer bag 6 is a mixture of polypropylene resin and low-density polyethylene resin.

[0024] The inner bag 5 is multi-layered. The outermost layer of the inner bag 5 is a layer made of ethylene-vinyl alcohol copolymer resin (EVOH layer). The EVOH layer contains 27 mol% or more and 29 mol% or less of ethylene, and preferably 28 mol%. The middle layer of the inner bag 5 is an adhesive layer made of polyolefin resin. The innermost layer of the inner bag 5 is a layer made of low-density polyethylene resin. The layers of the inner bag 5, including the middle layer and the innermost layer, are referred to as the inner layer. The inner layer is made of polyolefin resin. In addition to polyolefin resin and EVOH, additives are also used as raw materials for the container body 2. Examples of additives include antioxidants and slip agents. The weight of the additives contained in the container body 2 is essentially 0 g when calculated from the weight of the various raw materials fed into the hopper of the blow molding machine and the measured weight of the container body 2. In this way, the container body 2 is made of polyolefin resin except for the EVOH layer. Since it is molded to satisfy the condition that the weight of EVOH is 5.00% or less of the weight of the container body 2 (hereinafter referred to as the weight % condition), the container body 2 can be said to be made of a polyolefin resin.

[0025] An air hole 6h is formed in the outer bag 6, penetrating it in the thickness direction. In FIG. 1, the air hole 6h is formed in the bottom 24 of the outer bag 6. When viewed from below, the air hole 6h is straight and extends in a direction coinciding with the long axis of the bottom 24. When the container body 2 is crushed to push the contents out of the container body 2 and then the container body 2 is released, air flows into the gap between the outer bag 6 and the inner bag 5 through the air hole 6h, causing the outer bag 6 to return to its original shape and the inner bag 5 to maintain its crushed state.

[0026] 3, the cap 3 includes an inner lid 31 attached to the neck 21, an outer lid 32 closing an outlet 31h of the inner lid 31, and a hinge 33 connecting the inner lid 31 and the outer lid 32. The inner diameter of the outlet 31h is smaller than the inner diameter of the neck 21. In other words, the opening area of ​​the outlet 31h is smaller than that of the neck 21.

[0027] Although not shown in Fig. 3, the extrusion container 1 may be provided with an openable and closable valve in addition to the container body 2 and the cap 3. The valve is located between the container body 2 and the cap 3, and when the contents begin to pass through, the opening area becomes larger than when the contents have not yet passed through.

[0028] If the thickness of the outer bag 6 is increased while the thickness of the inner bag 5 remains constant, the weight of EVOH in the weight of the container body 2 decreases. On the other hand, if the thickness of the outer bag 6 is decreased while the thickness of the inner bag 5 remains constant, the weight of EVOH in the weight of the container body 2 increases. To determine the lower limit of the thickness of the outer bag 6 when the weight % condition is satisfied, samples (container bodies 2) were created in which the thickness of the inner bag 5 was constant (target EVOH layer thickness: 20 μm) but the outer bag 6 had different thicknesses. After measuring the weight of the sample, the sample was cut perpendicular to the vertical direction, and the thickness of the outer bag 6 and the inner bag 5 (EVOH layer, inner layer) were measured at multiple points on the cross section. The cut points were the most expanded part of the body 23 when the parison (cylindrical molten resin) was formed into the container body 2 by blow molding. Theoretically, the most expanded part is the thinnest part of the body 23. The most bulging part is the part of the body 23 with the largest dimension in the direction perpendicular to the vertical direction. In Figure 2(A), the height indicated by the dashed line is the most bulging part. There is essentially no difference in thickness between the most bulging part and its vicinity. If the vertical dimension (total height) of the container body 2 is divided into four equal parts, dividing the container body 2 into four sections, the most bulging part and its vicinity are located within the second section from the bottom. The thickness was measured at multiple points on the cross section of the sample using a microscope. The average value of the thicknesses at multiple points was used as the actual measured value. In Figure 2(B), the measurement points are indicated by black dots P, and the thickness was measured at two points at both ends of the body 23 in the major axis direction and two points at both ends of the body 23 in the minor axis direction. The measurement results are shown in Table 1 below. [Table 1] Eight samples were prepared. Specifically, the outer bag 6 was blow-molded to a target thickness of 370 to 580 μm, varying in 30 μm increments. The measured thicknesses for Samples 1 to 8 were 370, 409, 440, 459, 498, 520, 547, and 581 μm. Because the EVOH layer is integral with the inner layer and inseparable, its weight cannot be measured. Therefore, the weight of the EVOH layer for each sample was calculated based on the weight of each raw material fed into the hopper of the blow molding machine and the weight of the container body 2 after molding. The calculated weight was 0.60 g. The EVOH content (wt%) relative to the weight of the container body 2 was 5.07 when the outer bag 6 thickness (measured value) was 370 μm and 4.78 when it was 409 μm. Therefore, 409 μm is estimated to be the lower limit for the outer bag 6 thickness. Furthermore, the weight of the container body 2 is 12.54 g when the thickness (actual measured value) of the outer bag 6 is 409 μm. Therefore, it is estimated that 12.54 g is the lower limit value of the weight of the container body 2. The upper limit value of the weight of the container body 2 will be described later. Furthermore, while satisfying the lower limit of 409 μm for the thickness of the outer bag 6, the thickest EVOH layer among Samples 1 to 8 that satisfies the weight % condition is Sample 3, with a thickness of 24 μm. Therefore, it is estimated that the upper limit for the thickness of the EVOH layer is 24 μm.

[0029] It is easy to meet the weight percentage requirement by increasing the thickness of the outer bag 6 while keeping the thickness of the inner bag 5 constant. On the other hand, if the outer bag 6 is made too thick, the container body 2 becomes hard, making it difficult to push out the contents. In order to determine the upper limit of the thickness of the outer bag 6, a sensory test was conducted to evaluate the ease of pushing out. The results of the sensory test are shown in Table 2 below. [Table 2] The sensory test involved filling the container body 2 of Samples 1 to 8 almost to the brim with the contents, attaching the cap 3, holding the body 23 with one hand, and pushing the contents out through the outlet 31h of the cap 3. The sensation at the moment of pushing was evaluated on a three-point scale. The evaluation was based on whether the contents were too hard to push out, whether they were not hard, and whether they were slightly hard but within an acceptable range. The contents used were a viscous substance with a viscosity of 60 Pa·S. Specifically, the product used was a mayonnaise sold by Ajinomoto Co., Inc., under the trade name Pure Select® Fresh Keep Bottle. Five evaluators were assigned a rating of × when the thickness (measured value) of the outer bag 6 was 520 μm, and a rating of ◯ when the thickness (measured value) of the outer bag 6 was 498 μm. Furthermore, when the thickness (measured value) of the outer bag 6 was 459 μm, a rating of ◯ was assigned to the majority of evaluators. Therefore, the upper limit of the thickness of the outer bag 6 is estimated to be 498 μm, preferably 459 μm. According to Table 1, the weight of the container body 2 is 13.13 g when the thickness (actual measured value) of the outer bag 6 is 498 μm, and 13.00 g when it is 459 μm. Therefore, the upper limit of the weight of the container body 2 is estimated to be 13.13 g, and preferably 13.00 g.

[0030] Table 2 also lists the ratio between the thickness of the inner bag 5 and the thickness of the outer bag 6. The formula for calculating this ratio is outer bag 6 thickness / inner bag 5 thickness. The ratio is 3.4 times when the outer bag thickness (measured value) is 498 μm, and 3.0 times when it is 459 μm. Therefore, the upper limit of the thickness of the outer bag 6 is estimated to be 3.4 times, preferably 3.0 times. Note that all evaluators rated the ratio as Excellent when the ratio was between 2.6 and 2.8 times. Judging solely from the results of this sensory test, the lower limit of the thickness of the outer bag 6 is estimated to be 2.6 times or less. However, as mentioned above, the weight percentage condition is satisfied when the thickness is 409 μm or more, which is 2.7 times. Based on the weight percentage condition and the results of the sensory test, the lower limit of the thickness of the inner bag 5 is estimated to be 2.7 times. Therefore, it is estimated that 2.7 times the thickness of inner bag 5≦the thickness of outer bag 6≦3.4 times the thickness of inner bag 5. It is also estimated that preferably 2.7 times the thickness of inner bag 5≦the thickness of outer bag 6≦3.0 times the thickness of inner bag 5.

[0031] The thickness of the EVOH layer affects the shelf life of the contents packed in the container body 2. To determine the lower limit of the thickness of the EVOH layer, a test was conducted to measure the oxygen transmission rate of the container body 2 and a sensory test was conducted to evaluate the taste of the contents. The test results are shown in Table 3 below. [Table 3]

[0032] Four types of samples (container body 2) with different EVOH layer thicknesses were used: Samples 11 to 14. Two samples of the same type were prepared for each test. In the oxygen transmission rate measurement test, an empty sample was sealed at the neck 21, and a carrier gas (oxygen-free gas) other than air was circulated between the measuring device and the sample's interior. The amount of oxygen transmitted from the outside to the inside of the sample was measured using the measuring device. The measuring device was a MOCON® oxygen transmission rate measuring device, OX-TRAN®, sold by Hitachi High-Tech Science Corporation. The temperature inside the thermostatic chamber was set to 34°C and the relative humidity to 78% RH. The sample was placed inside the thermostatic chamber, and the MOCON was operated to circulate the carrier gas. The oxygen transmission rate per unit time was measured, and the oxygen transmission rate after one day was calculated based on the measurement results. After the measurement, the sample was cut perpendicular to the vertical direction, and the thickness of the EVOH layer on the cross section was measured. The cutting locations and thickness measurement method were the same as in the previous test. When sample container bodies 2 were manufactured so that the thickness of the EVOH layer would be a target value of 10, 12, 15, or 20 μm, the actual samples had thicknesses of 10, 12, 16, or 22 μm. In the taste sensory test, the contents used were Pure Select (registered trademark), a mayonnaise sold by Ajinomoto Co., Inc. Of course, each sample was filled with the same quality contents. Then, on the same day as filling, the filled samples were placed in the thermostatic chamber and stored under the same environment. After three months, three evaluators tasted the contents of the samples removed from the thermostatic chamber and evaluated whether the quality (taste) was within the acceptable range. Specifically, if the oxidized odor (or oxidized flavor) or Maillard flavor (the characteristic aroma due to the Maillard reaction) was within the acceptable range, it was rated as ○, and if it was outside the acceptable range, it was rated as ×. For taste, when the EVOH layer thickness was 10 or 12 μm, it was rated as ×, meaning it was outside the acceptable range, while when it was 16 or 22 μm, it was rated as ○, meaning it was within the acceptable range. The oxygen permeability (cc / bottle·day) was 0.0118 for an EVOH layer thickness of 10 μm, 0.0117 for 12 μm, 0.0106 for 16 μm, and 0.0092 for 22 μm. The difference in oxygen permeability (cc / bottle·day) was only a small decrease of 0.0001 when changing from 10 μm to 12 μm, but a significant decrease of 0.0011, an order of magnitude larger, when changing from 12 μm to 16 μm. The EVOH layer thicknesses of 12 μm and 16 μm, at which a significant decrease in oxygen permeability occurs, are consistent with the sensory evaluation of taste, which changed from × for an EVOH layer thickness of 12 μm to ○ for a 16 μm thickness. Therefore, we estimate that an EVOH layer thickness (actual measured value) of 16 μm is the lower limit that satisfies shelf life.

[0033] It is important that the contents can be easily pushed out of the container body 2. The ease of pushing out the contents correlates with the thickness of the outer bag 6 and with the ease of crushing the empty container body 2. The ease of crushing the container body 2 was measured using a universal testing machine. The universal testing machine was manufactured by Shimadzu Corporation under the trade name Autograph (registered trademark) AGS-X. As shown in FIG. 3, the universal testing machine includes a table 11, a bar 12 that moves up and down above the table 11, and a measuring unit that measures the force (compression force) applied to the bar 12. As shown in FIG. 3, the container body 2 is laid on the table 11 with the front-to-back direction of the container body 2 facing up and down, and the bar 12 crushes the most expanded portion of the container body 2. When crushing the container body 2, the bar 12 is parallel to the left-to-right direction of the container body 2, and the left-to-right length of the bar 12 is such that it protrudes left and right relative to the container body 2. The front-to-back length of the bar 12 is 20 mm, which is sufficiently shorter than the left-to-right length of the bar 12. The length (thickness) of the bar 12 from top to bottom is such that it does not elastically deform when crushing the container body 2. The bar 12 is made of polyacetal resin. When crushing the container body 2, the bar 12 descends at a speed of 100 mm / min. The bar descends and stops repeatedly from the time it starts to crush (contact) the container body 2 until it completely crushes (compresses), and the compressive force when it stops is measured. The position where the bar 12 starts to crush the container body 2 is defined as the displacement (compression) of the bar 12 of 0. The positions (displacement) where the bar 12 stops are 20, 24, 28, 32, 36, and 40 mm. 40 mm is the displacement of the bar 12 descending from the time it starts to crush the container body 2 until it completely crushes it, and is defined as the total descending amount. Samples 1 to 8 were used as the container body 2, and a cap 3 was fixed to the neck 21 of each sample to form a container. As described above, the cap 3 is formed with an outlet 31h whose opening area is smaller than that of the neck portion 21. The outlet 31h is a circular through-hole with a diameter of 4.0 mm. The measurement results are shown in Table 4 below. [Table 4] In the previous sensory test, the upper limit of the thickness of the outer bag 6 was estimated to be 498 μm, preferably 459 μm, but the compression force when compressed by 20 mm was 20.5 N for 498 μm and 20.2 N for 459 μm. Therefore, the upper limit of the ease of crushing is estimated to be 20.5 N, preferably 20.2 N. A compression of 20 mm is half the displacement of the total downward displacement (40 mm), and is considered to be an appropriate displacement for evaluating the ease of crushing.

[0034] The above-described squeeze container 1 has an EVOH layer content in the container body 2 that is suitable for recycling of raw materials, and according to the results of a taste sensory test, the contents can be kept fresh for 3 months under the test conditions, and according to the results of a sensory test when the container body 2 is crushed, the contents can be easily squeezed out.

[0035] The present invention is not limited to the above embodiment and can be modified as appropriate within the scope of the invention. For example, the contents are mayonnaise in the above embodiment, but the present invention is not limited to this and may be semi-solid dressing, ketchup, emulsified dressing, or tartar sauce. [Explanation of symbols]

[0036] 1. Squeezing container 2 Container body 21 Neck 22 Shoulder 23 Torso 24 Bottom 3 Cap 31 Inner lid 31h exit 32 Outer lid 33 Hinge 5 Inner bag 6 outer bag 6h Air Hole 11 tables 12 bars P Black dot

Claims

1. A squeeze container has a container body made of elastically deformable synthetic resin, and air can flow between a stacked outer bag and an inner bag, and the contents are squeezed out of the container body by squeezing the container body, The inner bag includes an EVOH layer as a barrier layer that is less permeable to oxygen than the outer bag, and an inner layer disposed inside the EVOH layer; The content of the EVOH layer is 5% by weight or less relative to the weight of the container body, 16 μm≦EVOH layer thickness≦24 μm, A squeeze container characterized in that the thickness of the outer bag is ≧409 μm, and the thickness of the outer bag is 2.7 times the thickness of the inner bag≦3.4 times the thickness of the inner bag.

2. 2. The squeeze container according to claim 1, wherein the thickness of the outer bag is 2.7 times the thickness of the inner bag ≦ the thickness of the outer bag ≦ 3.0 times the thickness of the inner bag.

3. 3. The squeeze container according to claim 2, wherein the thickness of the outer bag is ≦498 μm.

4. 4. The squeeze container according to claim 3, wherein the thickness of the outer bag is ≦459 μm.

5. The container body includes a bottom, a cylindrical body extending upward from the edge of the bottom, a shoulder extending from the upper end of the body toward the inside in the diameter direction, and a neck protruding upward from the inner periphery of the shoulder, The squeeze container according to claim 4, characterized in that, when viewed from above, the outer shape of the body is an ellipse whose width in the left-right direction is longer than its height in the front-to-back direction, and which is positioned outside and spaced apart from the outer shape of the shoulder portion.

6. The container body has an outer diameter of the neck of φ, a width in the left-right direction of X, a vertical width in the front-back direction of Y, and an overall height in the up-down direction of Z. φ:X:Y:Z=1:1.6~2.0:2.4~2.8:5.5~5.9 6. The squeeze container according to claim 5, wherein:

7. 7. The squeeze container according to claim 6, wherein the outer bag is made of a polypropylene resin and a low-density polyethylene resin.

8. 8. The squeeze container according to claim 7, wherein the inner layer comprises an adhesive layer and a layer made of low-density polyethylene laminated in this order on the inside of the EVOH layer.

9. 9. The squeeze container according to claim 8, wherein the molar fraction of ethylene contained in the EVOH layer is 27 mol%≦29 mol%.

10. 10. The squeeze container according to claim 9, wherein the weight of the container body is 12.54 g≦13.13 g.

11. A cap is provided which is fixed to the container body, The cap has an outlet having an opening area smaller than that of the neck of the container body, When crushing the container body, bars protruding to the left and right of the container body are used, The container body is laid on a table with the front and back directions of the container body facing up and down, and the force applied to the bar when the most expanded part of the container body is crushed with the bar is defined as the compression force. The amount of displacement of the bar from the start of crushing the container body until it is completely crushed is defined as the total amount of descent.

11. The squeeze container according to claim 10, wherein the compressive force at a displacement of half the total downward displacement is ≦20.5 N.

12. A food product comprising the extruding container according to any one of claims 1 to 11 and mayonnaise contained in the extruding container.

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