JP2017141041A - Deep drawing package and deep drawing packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deep drawing package or the like a corner part of which has a low rigidity.SOLUTION: A deep drawing package comprises a deep drawing container having a storage part and a flange part, and a lid part which is joined to the flange part and encapsulates the storage part. The deep drawing package has plural corner parts, which are convexed on a radial direction outer side of the flange part, in a circumferential direction, and at least two of the plural corner parts are respectively provided with non-joint areas 40a, 40b, 40c and 37 in which the flange part and the lid part are not joined so that the non-joint areas reach the vicinity of an apex of the corner part from a joint boarder line which is positioned on an inner side with respect to an outer edge of the flange part.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a deep drawn packaging body and a deep drawn packaging machine.

  There is a packaging method called deep drawing packaging for packaging foods and medicines. This is composed of a deep-drawn container main body provided with an accommodating part (pocket part) for containing an article to be packaged, and a lid for sealing the opening of the deep-drawn container main body. The deep-drawn container body is provided with a flange portion that protrudes radially outward so as to enclose the periphery of the storage portion, and by joining the periphery of the flange portion and the periphery of the lid portion, the article to be packaged stored in the storage portion Seal. For joining, heat sealing (ultra-sealing) in which pressure and heat are applied by sandwiching the flange portion and the lid portion from above and below with a sealer, ultrasonic welding, and the like are considered. The deep-drawn container body and the lid are each molded from a predetermined synthetic resin.

  Conventionally, the flange part of a deep-drawn package has an unsealed outer peripheral edge, and the lid is peeled from the deep-drawn container body by making it easy to pick up the film constituting the lid part with fingers. (For example, refer patent document 1). FIG. 8A shows an example of packaging using a deep drawn package. In the deep-drawn package 100 of FIG. 8 (A), an example is shown in which a flat food such as Bonless ham is assumed as the package 15 and the deep-drawn package is packaged in a state where they are stacked. The package 15 is accommodated in the accommodating part 119, and the film which comprises the flange part 115 and the cover part 117 which were provided continuously from the accommodating part 119 is sealed by heat seal. One of the corners of the flange 115 is not sealed so as to be the opening 110, and the flange 115 and the lid 117 are not bonded. The purchaser grasps the opening 110 with his / her finger, peels the lid 117 from the flange 115, and takes out the article 15 to be packaged therein.

Japanese Patent No. 4220027

  FIG. 8B shows a top view of an example of the deep drawn package 100. In this case, the flange portion 115 has sharp corners. Since the corner portion 130d is an opening, the flange portion 115 and the lid portion 117 are not sealed. Therefore, the corner portion 130d retains flexibility.

  In contrast, the corner portions 130a, 130b, and 130c are sealed. When the synthetic resin constituting the flange portion 115 and the synthetic resin constituting the lid portion are heat sealed, the corner portions 130a, 130b, and 130c increase in thickness, and heat and pressure are applied to increase density and rigidity. It has the same hardness as hard plastic. Then, a package with hard and sharp corners sealed like the corners 130a, 130b, and 130c may damage another package or hurt the fingers of consumers and workers during packing and transportation. Cause it.

  In order to solve such a problem, it has been conventionally performed to cut off sharp corner portions of the four sealed corners so as to form the round cut corner portions 140a to 140d of FIG. 8C.

  FIG. 9 shows a process of rounding off the corners. The deep-drawn package group 150 that is not divided is unsealed so that one corner that becomes the opening 110 of each individual can be peeled off. , A seal region 120 (see FIG. 9A). When the deep drawn package group 150 is an individual package, a punching cutter having an end face as shown in FIG. 9 (B) is prepared for punching out the portions constituting the four corners of the flange 115. The part which becomes the four corners of a flange part like the punching part 162 in 9 (C) is punched out. When it is separated into individual packages by a cutting means such as a horizontal cutter and vertical cutter, or a punching device, a deep-drawn package having rounded corners as shown in FIG. 9 (D). Is completed.

  However, in order to repeatedly punch a seal region with increased rigidity, the punching cutter 160 is severely worn, and as a result, there is a problem that a large cost is required for punching.

  An object of the present invention is to provide a deep-drawing package with low corner rigidity and a deep-drawing packaging machine capable of forming such a package.

  (1) The present invention seals the housing portion by joining the housing portion for housing an article to be packaged and a deep-drawn container having a flange portion provided continuously with the housing portion, and the flange portion. A deep-drawn package including a lid, wherein the deep-drawn package has a plurality of corners in the circumferential direction that are convex outward in the radial direction of the flange, and all of the plurality of corners Unbonded regions in which the flange portion and the lid portion are not joined so as to reach from the joining boundary line located on the inner side of the outer edge of the flange portion to the vicinity of the apex of the corner portion, respectively, Provided is a deep drawn package having a large unjoined region having a large area and a small unjoined region having a smaller area than the large unjoined region as the joining region.

  (2) In the present invention, the unjoined region having a long side length from the intersection point where the joining boundary line and the outer edge contour line of the flange portion intersect to the apex of the corner portion and the side length are short. The deep-drawn package according to (1) above, comprising the unjoined region.

  (3) In the present invention, the length of the side of the unjoined region having a long side is 6 mm or more, and the length of the side of the unjoined region having a short side is less than 6 mm. The deep-drawn package according to (2) above, which is characterized in that

  (4) The present invention provides the deep-drawn package according to (3) above, wherein the length of the unjoined region having a short side is 2 mm or more.

  (5) In the present invention, in the vicinity of the unjoined region having a large area, opening instruction information indicating that it is an opening that is pinched with a finger and peels the lid from the flange is attached. The deep-drawn package according to (1) or (2), which is characterized in that it is provided.

(6) The present invention seals the housing portion by joining the housing portion for housing an object to be packaged and a deep-drawn container having a flange portion provided continuously with the housing portion, and the flange portion. A deep-drawn package including a lid, wherein the deep-drawn package has a plurality of corners in the circumferential direction that are convex outward in the radial direction of the flange, and all of the plurality of corners Unbonded regions in which the flange portion and the lid portion are not joined so as to reach from the joining boundary line located on the inner side of the outer edge of the flange portion to the vicinity of the apex of the corner portion, respectively, The length of the side of the joining region is less than 6 mm, and a deep-drawn package is provided in which an opening means is formed on the outer edge of the flange portion.

  (7) According to the present invention, in any one of the above (1) to (5), the joining boundary line of the small unjoined region is convex toward the apex of the corner. Provide deep-drawn packaging.

  (8) The present invention provides the deep-drawn package according to (6) above, wherein the joining boundary line of the unjoined region is convex toward the apex of the corner.

  (9) The deep drawn package according to any one of (1) to (8), wherein the flange has a thickness of 70 μm or more and 150 μm or less. provide.

  (10) The deep-drawn package according to any one of (1) to (9), wherein the lid has a thickness of 60 μm or more and 70 μm or less. To do.

  (11) The deep-drawn packaging according to any one of (1) to (10) above, wherein the total thickness of the lid portion and the thickness of the flange portion is 130 μm or more. Provide the body.

  (12) The deep-drawn package according to any one of (1) to (11), wherein the outer peripheral contour of the flange portion is substantially rectangular.

  (13) The present invention provides a molding means for molding a belt-shaped molded film into a deep-drawn container having a housing portion for housing an article to be packaged and a flange portion provided continuously with the housing portion, and a belt-like lid material. When the film is bonded to the flange portion and the housing portion is sealed, a plurality of radially outwardly projecting corner portions provided in the circumferential direction of the flange portion are arranged on the inner side of the outer edge of the flange portion. The molding film in a direction intersecting the transport direction and a joining means for forming an unjoined region in which the flange portion and the lid portion are not joined so as to reach the vicinity of the apex of the corner portion from the joining boundary line located And a cutting means for simultaneously cutting the lid material film to form a packaged product.

  According to the present invention, the corner portion of the flange portion is not sealed, so that the rigidity of the corner portion is lowered, and other packages are damaged by the sharp and hard corner portion, or the fingers of the handler are damaged. The outstanding effect that the deep-drawing package body which reduces malfunctions, such as these, can be show | played can be show | played.

It is a side view showing the whole deep drawing packaging machine composition concerning a first embodiment of the present invention. It is an end view of the heat sealer which concerns on 1st embodiment of this invention. (A) It is a top view of the deep drawn package which provided the unsealed area | region in the corner | angular part. (B) It is AA arrow sectional drawing of the deep-drawing package body and heat sealer which concern on FIG. 3 (A). (A) It is explanatory drawing at the time of sealing the flange part including a corner | angular part. (B) It is explanatory drawing at the time of providing an unsealed part in a corner | angular part. (A) It is a top view of the deep drawn package which concerns on 2nd embodiment of this invention, (B) It is the top view which expanded the opening opening | mouth about the flange part of a deep drawn package. (C) It is the upper side figure which expanded the unsealed part other than the opening opening about the flange part of a deep drawing package. (D) It is a top view of the deep-drawn packaging body which provided the small unsealed part of a small area in all the corner parts, and was equipped with the notch as an opening means. (A) It is explanatory drawing of the suitable unsealed area | region in the case of having a some vertex at a corner | angular part. (B) It is explanatory drawing of an unsealed area | region suitable when it has two rows of accommodating parts along a conveyance direction. It is the top view which expanded the unsealed part which the joining boundary line which is a boundary of the seal | sticker area | region and unsealed area | region in the corner | angular part of a deep drawing package is convex toward a flange part outer periphery in radial direction. (A) It is a conceptual diagram of the conventional deep drawing package. (B) It is a top view of the deep-drawn package in the case where an unpressed part is not provided at the corner. (C) It is a top view of the deep drawing package body which rounded off the corner | angular part. (A) It is a top view of the conventional deep drawing package group which is not divided | segmented. (B) It is a front-end end view of the punching cutter for cutting a corner round. (C) It is a top view of the state which punched the corner | angular part of each individual | solid of the conventional deep drawing package group which is not divided | segmented. (D) It is a top view of the deep drawing package body which rounded off the corner | angular part.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 7 are examples of embodiments for carrying out the invention, and in the drawings, parts denoted by the same reference numerals represent the same items. In addition, a part of the configuration is omitted as appropriate in each drawing to simplify the drawing. The size, shape, thickness, etc. of the members are exaggerated as appropriate.

  Drawing 1 is a side view showing the whole deep draw packaging machine 1 composition concerning a first embodiment of the present invention. The deep-drawing packaging machine 1 includes a molding device 4 that molds the housing portion 12 from the molded film 3, a packaging material filling device 5 that fills the housing portion 12 with the packaging material 15, and an opening of the housing portion 12. A sealing device 6 provided with a sealer 30 that is sealed with a material film 20, a horizontal cutter device 7 having a horizontal cutter 35 that cuts the undrawn deep drawn package group 150 into individual packages, and a vertical cutter device having a vertical cutter 36. 10 (both the horizontal cutter device 7 and the vertical cutter device 10 are collectively referred to as a cutter device 11).

  The deep-drawn packaging body 25 manufactured by the deep-drawing packaging machine 1 includes a molded film 3 made of a synthetic resin that forms the accommodating portion 12 that accommodates the article 15 to be packaged, and a synthetic resin that forms a lid portion that seals the opening. It is comprised from the cover material film 20 which consists of. It is desirable that the molded film 3 is harder and thicker than the lid film 20 in order to protect the package 15 to be accommodated after molding. As a synthetic resin for the molded film 3, polyolefins such as polyethylene terephthalate, polyamide, polyethylene, and polypropylene can be considered. You may provide vapor deposition layers, such as aluminum, in these synthetic resins.

  As the synthetic resin for the lid film 20, it is desirable to use a sheet made of a relatively soft resin such as polyester, polypropylene, or polyethylene terephthalate. This sheet is preferably stretched in one or two axial directions. Cellophane, synthetic paper or the like may also be used.

  In order to heat-seal the synthetic resin that forms the molded film 3 and the synthetic resin that forms the lid material film 20, a sheet obtained by filming polyethylene, polypropylene, or the like as a thermal adhesive may be used in combination. Of course, the thermal adhesive may also be used as either the lid material film 20 or the molded film 3 or both.

  Next, the operation of the deep drawing packaging machine 1 will be described.

  The molded film 3 is supplied from the raw fabric roll 2 and is vacuum-formed by the vacuum pump 9 to form the accommodating portion 12. The remaining part of the molded film 3 other than the housing part 12 becomes the flange part 115. The molded film 3 on which the housing part 12 is formed is conveyed in the direction of the packaged article filling device 5. In the packaging material filling apparatus 5, the packaging material 15 is filled in the accommodating portion 12. Here, the package 15 is filled by a machine, but filling the package may be performed manually. The accommodating portion 12 filled with the article 15 to be packaged is further conveyed to the sealing device 6 in order to form the lid portion 117. The lid material film 20 is supplied from the raw roll 8 to the sealing device 6, and the molded film 3 and the lid material film 20 are heat sealed by the sealer 30. As will be described in detail later, the sealer 30 has a shape that forms an unsealed region at the corners of the flange portion 115. At this time, it is conceivable to perform sealing in a state where air is sucked and removed from the accommodating portion 12. It is also conceivable to suppress deterioration of the package 15 by replacing air with an inert gas such as nitrogen gas. Then, it cut | disconnects with the horizontal cutter 35 of the horizontal cutter apparatus 7 and the vertical cutter apparatus 10, and the vertical cutter 36, and the separate packaging body 25 is completed.

  The package 15 is a food having a circular cross section, such as a boneless ham, and the flange portion 115 is finally substantially rectangular. The plurality of objects to be packaged 15 are accommodated in the accommodating portion 12 formed from the molded film 3, and are sealed by the sealer 30 with a band-shaped lid material film 20. The sealer 30 is shaped so as to surround the accommodation region 45, and as shown in FIG. 3B to be described later, the sealer 30 has substantially the same shape as the seal region. Apply heat to heat bond.

  FIG. 2A shows an end view of the sealer 30. Although the sealer 30 is substantially rectangular, a large unpressed contact portion 37 is provided at one corner to form an opening having a size that can be pinched with a finger (for example, one side L is 6 mm or more). Small corners 40a, 40b and 40c each having a side L of about 5 mm are provided at the other corners. The large unpressed contact portion 37 and the small unpressed contact portions 40a, 40b, and 40c do not contact the cover material film 20 or do not apply pressure or heat even if contacted, so that the cover material film 20 and the molded film 3 This is a region where heat bonding is not performed. 2A shows an example of the integrated sealer 30, the sealer 30 may be a combination of a plurality of sealers (for example, bar sealers 32a to 32e) as shown in FIG. 2B. Since the large unpressed portion 37 is set to have a side L of 6 mm or more, desirably 10 mm or more, it is easy to pinch the lid portion 70 and the container body that are not sealed with a finger.

  FIG. 3 (A) shows a top view of the deep-drawn package 25 in which an unsealed region is provided at the corner. In addition, in the top view of the package 25, the area | region where the cover part 70 is joined is displayed with the dot for convenience. A large unsealed region 55 for an opening is formed at the peripheral corner portion 53d of the flange portion 115 located at the lower left in FIG. 3A, and the flange portions located at the upper left, upper right, and lower right in the drawing. In the remaining three corners 53a to 53c on the periphery of 115, small unsealed regions 50a to 50c are provided.

  In the upper left corner portion 53a of FIG. 3A, from the intersection 56 where the joint (seal) boundary line 51 between the small unsealed region 50a and the sealed region intersects the outer edge contour line of the flange portion 115 to the vertex 54 of the corner portion 53a. The length of each side is formed such that one side L is less than 6 mm, preferably about 5 mm, corresponding to the size of the cutout of the sealer 30. The same size is applied to the small unsealed regions 50b and 50c of the other corner portions 53b and 53c. Note that when one side of the small unsealed areas 50a to 50c is 6 mm or more, the lid portion 70 of the small unsealed areas 50a to 50c is easily turned (or the user wants to turn), and the appearance of the package is also impaired. A central unsealed region 65 is formed at the center of the lid portion 70 so as to cover the article 15 to be packaged. In the lid portion 70, the region excluding the center unsealed region 65 and the large and small unsealed regions 55, 50 a to 50 c becomes an annular sealed region 60 by being joined to the flange portion 115. The package 15 is sealed by the annular seal region 60.

  Further, in the vicinity of the large unsealed region 55 in the lid portion 70, opening instruction information 55x indicating to the user that this place is an opening is displayed by printing or unevenness. Accordingly, the user is prompted to open from the large unsealed portion 55, while the user is guided from the unsealed regions 55 and 50a to 50c so as not to be opened by mistake.

  FIG. 3B shows a cross-sectional view of the deep-drawn packaged body of FIG. 3A taken along the line AA and a cross-sectional view of the sealer 30. The article 15 to be packaged is accommodated in the accommodating portion 75 and sealed with the lid portion 70. At the vertex 57, the sealer 30a and the sealer 30b sandwich the molded film 3 and the lid material film 20 from above and below so as to leave a large unsealed region 55 for the opening. On the apex 52 side, the sealer 30a and the sealer 30b sandwich the molded film 3 and the lid material film 20 from above and below so as to leave a small unsealed region 50b. In this state, pressure and heat are applied to form a seal region 60 by heat bonding.

  For reference, FIG. 4A shows a conventional package in which the entire corner portion 77 is heat-sealed. The sealed corner 77 is heat-bonded with the molded film 3 and the lid material film 20, and the rigidity is increased by increasing the density by applying pressure, and it is hardened to such an extent that it cannot be bent even when pressed with a finger. Has been. In this case, the hardened corners are not hardened and sharp because they do not cut rounded corners, and when the packages collide with each other, they damage each other's packaging and seal the container 12 May result in solving. In addition, due to the sharpness, the fingers of workers and consumers are damaged by contact, and the shopping bag is damaged.

  On the other hand, the packaging body 25 according to the first embodiment shown in FIG. 4B has a large and small unsealed region 55 in at least two corners (all corners 53a, 53b, 53c, 53d in this embodiment). , 50a to 50c are provided. The large and small unsealed regions 55 and 50a to 50c are soft because they are not pressurized and are not thermally bonded, and are flexible enough to bend easily when pressed with a finger. Therefore, even if the packages collide with each other, there is no possibility of damaging each other's packaging and causing damage such as damaging the fingers of workers and consumers.

  If the size of one side of the unsealed region 50 is less than 2 mm, the corner portion with flexibility is reduced, and the highly rigid seal boundary line 51 itself is relatively sharp. It will fade.

  In addition, the packaging body 25 according to the first embodiment positively promotes opening of one of the corner portions 53a, 53b, 53c, 53d as a large unsealed region 55 having a large area, and the remaining three. The small unsealed regions 50a to 50c having a small area are not recognized as the opening. As a result, it becomes easy to visually judge the opening and the portion that is not, and the convenience for the user can be improved. In addition, when it is desired to provide a plurality of opening openings, a plurality of large unsealed regions (two or more) may be provided, and the remaining may be small unsealed regions.

  In the flange portion 115, the outer peripheral edges other than the corner portions 53a, 53b, 53c, and 53d are all sealed. However, the present invention is not limited to this, and the outer peripheral edge of the flange portion 115 is along the outer peripheral edge. Thus, an unsealed region may be formed.

  Next, with reference to FIG. 5 (A), the deep drawn package which concerns on 2nd embodiment of this invention is demonstrated. Similar to the deep-drawn package according to the first embodiment, the outer peripheral contour of the flange portion 115 is substantially rectangular and has corners at the four corners. A large unsealed region 170 and small unsealed regions 180a to 180c are provided at the corners of the four corners, respectively. FIG. 5B is an enlarged top view of the vicinity of the large unsealed region 170 corresponding to the opening provided in the lower left corner of FIG. A seal boundary line 175 that is a boundary between the seal region 190 and the large unsealed region 170 has a bent portion 177. By providing the bent portion 177 on the seal boundary line 175, the lid material film 20 constituting the lid portion 70 covering the unsealed region 170 is picked up and pulled up to try to peel the lid portion 117 from the flange portion 115. In some cases, stress concentration occurs at the apex of the bent portion 177, and thus the effect of being easy to peel off is brought about.

  FIG. 5C is an enlarged top view of the vicinity of the small unsealed region 180b in the upper right corner of FIG. In principle, the corner shown in FIG. 5C is not used for peeling as an opening, so it is desirable that the corner is difficult to peel off. Therefore, a seal boundary line 185 that is a boundary between the seal region 190 and the unsealed region 180b is a straight line. In this way, unlike the opening (large unsealed region 170), even if the lid material film 20 constituting the lid portion 70 covering the unsealed region 180b is picked up and pulled upward, a pulling force is applied to a specific location. Is not concentrated and brings about the effect of being difficult to peel off.

  FIG. 5D shows another modified embodiment of the deep-drawn package. In the present embodiment, the outer peripheral contour of the flange portion 115 is substantially rectangular and has corners at four corners. All corners are provided with small unsealed regions 200 having the same shape and area. The area of the small unsealed region 200 is small to pinch with a finger and peel the lid from the flange, and does not function as an opening. However, since all corners are unsealed, it retains flexibility, and there is little possibility of damaging each other during packing and transportation, and inflicting injury to workers and consumers' fingers. Has an effect. As opening means, a notch (notch) 187 is provided on the outer periphery of the flange portion 115 along any side of the housing portion. As this notch, for example, an I type, a V type, a Y type, or the like can be applied.

  The deep-drawing packaging machine and the deep-drawing packaging body of the present invention are not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

  For example, in the described embodiment, the outer peripheral contour of the flange portion 115 is substantially rectangular, but it may be a shape other than a rectangle having a large number of vertices. An example is shown in FIG. In the package, a seal region 97 is provided so as to surround the packaged object 15. Not only the corner 90a having the unsealed region 95 for the opening, but also the vicinity of the corner 90b is unsealed even when the corner 90b has a sharp corner, the unsealed region 85 is flexible. The possibility of damaging each other between the packages and the possibility of injury to workers and consumers is low.

  The package may be provided with a plurality of accommodating portions 12. Moreover, when shape | molding the some accommodating part 12 with respect to the shaping | molding film 3 continuously, you may provide one line along a conveyance direction, and you may provide multiple lines. In the example of FIG. 6B, the case where the two rows of accommodating portions 12 are formed along the conveyance direction indicated by the arrow is shown. A package 15 is housed inside each housing portion 12, and a small unsealed region with respect to each future corner (this corner is created by cutting the molded film 3 in the future). 85. By providing the large unsealed region 95, the flexibility of the future corner is ensured. Moreover, you may form the weak part (dent) 99, such as a half cut, used as a cutting line in the outline of the flange around the accommodating part 12. FIG. Combining the fragile portion (indentation) 99 with the large unsealed portion 85 and the small unsealed portion 95, the corner portion created by the consumer even when divided into individual packages according to the fragile portion The flexibility is always ensured, and it is unlikely that the consumer's fingers will be injured accidentally. The fragile portion may be a sewing line other than the half cut. In addition, although heat sealing was taken up as an example for joining the lid portion and the deep-drawn container in this specification, ultrasonic welding may be used.

  FIG. 7 shows another modified embodiment of the deep-drawn package. In this deep-drawn package, a joining boundary line 185 that is a boundary between a sealed area and an unsealed area at the corner is a shape that is convex and rounded radially toward the outer edge of the flange (for example, the apex of the corner). It has a small unsealed region 180. As described above, when the joining boundary line 185 is convex toward the apex of the corner portion, the maximum width Z of the small unsealed region 180 is reduced, so that the small unsealed region 180 is inadvertently swollen and the appearance of the package is improved. Can be prevented from getting worse. However, when the area of the small unsealed region 180 is reduced, the flexibility of the small unsealed region 180 may be slightly impaired. As shown in FIG. 7, if the joint boundary line 185 with the seal region 190 is rounded, even if the rigidity on the inner side in the radial direction from the joint boundary line 185 is increased, it is possible for workers and consumers to There is an effect that there is less possibility of injury to the finger.

  As another modified embodiment, at least one of the three characteristics of the area of the unsealed region, the length of the side of the unsealed region, and the shape of the joining boundary line between the sealed region and the unsealed region is provided. It is also conceivable to form three or more types of unsealed regions having different shapes in one package, which are different from each other. Moreover, you may form the unsealed area | region of a different shape in all the corner | angular parts of a package. In these modified embodiments, it is desirable that at least the large unsealed region having the largest area functions as an opening means (pick) when opening the package.

  In addition, although heat sealing was taken up as an example for joining the lid portion and the deep-drawn container in this specification, ultrasonic welding may be used.

DESCRIPTION OF SYMBOLS 1 Deep drawing packaging machine 2 Original fabric roll 3 Molded film 4 Molding device 5 Package filling device 6 Sealing device 7 Horizontal cutter device 8 Original fabric roll 9 Vacuum pump 10 Vertical cutter device 11 Cutter device 12 Housing part 15 Packaged object 20 Lid material film 25 Completed package 30 Sealer 35 Horizontal cutter 36 Vertical cutter 37 Large unpressed part 40 Small unpressed part 45 Storage area 50a, 50b, 50c, 180a, 180b, 180c Small unsealed area 53a, 53b, 53c, 53d Corner portion 55, 170 Large unsealed region 60, 190 Sealed region 65 Unsealed region 70 Lid portion 75 Pocket portion 77 Sealed corner portion 80 Sealed region 85 Unsealed region 90 Corner portion 95 Unsealed region for opening DESCRIPTION OF SYMBOLS 100 Conventional deep drawing package 110 Opening opening 115 Flange part 11 Lid 119 accommodating portion 120 sealing area 130 corner 140 round-cut corners 150 divided non deep draw package group 160 punching cutter 187 notch (nick)
200 Unsealed area

Claims (13)

A depth comprising: a container for housing an object to be packaged; a deep-drawn container having a flange portion provided continuously with the housing portion; and a lid portion that is joined to the flange portion and seals the housing portion. A squeeze package,
The deep-drawn package has a plurality of corner portions that are convex outward in the radial direction of the flange portion in the circumferential direction,
For all of the plurality of corner portions, there is an unjoined region in which the flange portion and the lid portion are not joined so as to reach the vicinity of the apex of the corner portion from the joining boundary line located inside the outer edge of the flange portion. Each formed,
As the unbonded region,
A large unjoined region with a large area,
A deep drawn package having a small unjoined region having a smaller area than the large unjoined region.   The unjoined region having a long side length from the intersection where the joining boundary line and the outer edge contour line of the flange portion intersect to the apex of the corner portion, and the unjoined region having a short side length are provided. The deep drawn package according to claim 1.   The length of the side of the unjoined region having a long side length is 6 mm or more, and the length of the side of the unjoined region having a short side length is less than 6 mm. The deep drawn package according to claim 2.   The deep-drawn package according to claim 3, wherein the length of the side of the unjoined region having a short side is 2 mm or more.   The opening instruction information indicating that the opening is an opening that is pinched with a finger to peel the lid from the flange, in the vicinity of the unjoined region having a large area. The deep drawn package according to claim 2. A depth comprising: a container for housing an object to be packaged; a deep-drawn container having a flange portion provided continuously with the housing portion; and a lid portion that is joined to the flange portion and seals the housing portion. A squeeze package,
The deep-drawn package has a plurality of corner portions that are convex outward in the radial direction of the flange portion in the circumferential direction,
For all of the plurality of corner portions, there is an unjoined region in which the flange portion and the lid portion are not joined so as to reach the vicinity of the apex of the corner portion from the joining boundary line located inside the outer edge of the flange portion. Each formed,
The length of the side of the unbonded region is less than 6 mm,
A deep-drawn package body, wherein an opening means is formed on an outer edge of the flange portion.   The deeply drawn package according to any one of claims 1 to 5, wherein the joining boundary line of the small unjoined region is convex toward the apex of the corner. .   The deep drawn package according to claim 6, wherein the joining boundary line of the unjoined region is convex toward the apex of the corner.   The deep-drawn package according to any one of claims 1 to 8, wherein the flange portion has a thickness of 70 µm or more and 150 µm or less.   The deep drawn package according to any one of claims 1 to 9, wherein the lid has a thickness of 60 µm or more and 70 µm or less.   The total of the thickness of the said cover part and the thickness of the said flange part is 130 micrometers or more, The deep drawn package as described in any one of Claim 1-10 characterized by the above-mentioned.   The deep-drawn package according to any one of claims 1 to 11, wherein a shape of an outer peripheral contour of the flange portion is substantially rectangular. Molding means for molding a belt-shaped molded film into a deep-drawn container having a housing portion for housing an article to be packaged and a flange portion provided continuously with the housing portion;
When the band-shaped lid material film is bonded to the flange portion and the housing portion is sealed, a plurality of radially outwardly protruding corner portions provided in the circumferential direction of the flange portion, A joining means for forming an unjoined region in which the flange part and the lid part are not joined so as to reach from the joining boundary line located inside the outer edge to the vicinity of the apex of the corner part;
Cutting means for simultaneously cutting the molded film and the lid material film to form a packaged product in a direction intersecting the transport direction;
Deep drawing packaging machine equipped with.

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