JP4917695B1 - Gable top paper container - Google Patents

Abstract

An object of the present invention is to provide a gable-top type paper container that can easily confirm the direction of the spout on the opening side, and has both a contradictory opening function and a sealing function.
In a gable-top type paper container formed by connecting four blank panels in a rectangular tube shape using a laminate having a paperboard as a base material and a polyolefin heat seal resin layer as an outer layer, an opening-side wife rib panel An easy peelable seal region to which an anti-heat sealant is applied is provided in an inverted trapezoidal shape, and a triangular strong release agent application region is formed at the opening start ends of both ends of the easy peelable seal region. An opening limit fold line that opens to the maximum extent is provided in the extending direction of the opening guide fold line in the inclined rib panel portion and the heat seal top panel portion through the intermediate position where the inclined rib panel portion and the heat seal top panel portion are connected, and the heat seal top Take measures to make the shape of the panel part in the sealed side direction into a heat-sealed top panel part with a step with the opening limit polyline as the boundary
[Selection] Figure 2

Description

  The present invention relates to a gable-top type paper container that can easily confirm the direction of a spout on the opening side and has both an opening function and a sealing function that conflict with each other.

  The Goebel Top-type milk carton used as a paper container for milk cartons was invented in the United States in 1915 and released in Japan in 1969. It has spread rapidly and maintains an overwhelming production share even today. Currently, about 20 million milk cartons are consumed daily in Japan, and it is estimated that 7.2 billion bottles are converted annually, and the annual amount of paper used for these milk packs is 200,000 tons. Reaching mass consumption materials.

  On the other hand, the packaging form of milk cartons also changed with the passage of time, and at the beginning it was sealed with a stapler and opened with a knife. It has evolved into a paper pack container that anyone can easily open to the elderly.

  However, many of the current paperbell type paper containers have excellent functions in terms of sealing, storage, and toughness in milk cartons, but when used, the direction of the spout on the opening side is Problems with the opening and sealing properties of the spout, such as difficulty in checking, difficulty in opening the spout, inability to remove the spout cleanly, and failure to maintain the sealed state after resealing There was something.

  Conventionally, various proposals have been made to solve the problems of opening and sealing of the spout. For example, regarding the point where it is difficult to easily check the direction of the spout on the opening side, the characters “Drink” are printed in the direction of the spout, or the opposite side of the spout is cut in a semicircle. In order to distinguish between milk and other beverages, the labeling method is not recognized by those who are trying to open it in a hurry, or those who are blind or visually impaired. It was a fact.

  Moreover, regarding the point that the adhesive force of the spout is strong and difficult to open, and the spout cannot be removed cleanly, for example, “easily openable paper container” (see Patent Document 1) or “liquid container” (Patent Document 2). (See Fig. 3), "Opening structure of Gobeltop-type square tube container" (see Patent Literature 3), and "Clip for closing paper bag spout" (see Patent Literature 4).

  The above-mentioned “easy-opening paper container” (Patent Document 1) proposes a govel-top type in which an opening piece with an extended top seal portion is provided on the upper sides of a pair of opposed outer rib panel portions, and the top portion is fully open. Although it is an easily openable paper container, the proposal is merely a proposal in which an opening piece with an extended top seal portion is provided to open the entire top portion, a sanitary problem in the entire opening, a problem of excessive pouring, Since it does not have problems such as hand gaps and troublesome odors due to opening and closing operations and means for completely sealing the entire opening, it did not satisfy the two contradictory functions of opening and sealing.

  In addition, the proposal of “Liquid Container” (Patent Document 2) is that, on the boundary side between the inner rib panel part and the folded panel part on the container inner surface side, the vicinity of both ends, the place where the adhesive flap is superposed, and the vicinity of the superposed part are The release agent is applied except that the adhesion state between the outer rib panel portion and the inner rib panel portion is a liquid container formed by a temporary attachment portion corresponding to the position where the release agent is applied and other strong attachment portions. However, the proposal is a proposal of a separating means for simply forming the adhesion state between the outer rib panel portion and the inner rib panel portion with the temporary attachment portion and the other strong attachment portion. As a means for solving problems such as opening with the opening force and opening the spout cleanly, an easy peelable seal in which an anti-heat sealant is applied to the opening-side wife rib panel portion of the present invention Reverse area Compared with a means that does not require the force of the initial opening force by forming a triangular strong release agent application region at the opening start ends of both ends of the easily peelable seal region and providing the shape, the release agent application region What is the shape of the liquid and does not reflect the effectiveness of the peelability such as the position and direction where the opening force enters into the shape, what is a liquid container that has conflicting functions such as effectively preventing leakage and easy to open It was hard to say.

  In addition, the proposal of “opening structure of the gobeltop-type square tube container” (Patent Document 3) is that the top plate seal flap connected to the upper portion of the top plate has a height direction of the top plate seal flap in the middle portion thereof. Although it has been proposed to have a structure with an opening assist slit having dimensions up to the middle, the proposal is misunderstood as a slit for assisting opening provided in the middle part of the top plate seal flap is mischievous. It has a shape that makes it easy to be done, and it has made consumers uneasy. In addition, since the slit is a slit that completely bisects the welded state of the top plate seal flap, it is only the maximum position at which both sides of the tapping plate seal flap are opened and peeled off. It did not fulfill the role of making it easier. Further, in order to reach the state shown in FIG. 1 (a), it is important that the end plate seal flap be bent accurately along the oblique direction of the opening guide folding line, but the end plate seal flap serves as a guide for bending. Since the broken line is not provided, it is folded in an incomplete and irregular state, and the leading end of the folded line of the pull-out seal flap in the state of FIG. 1 (b) is not completely exposed (in the present invention When peeling is completed in FIG. 3 (3), the fingertip is difficult to catch and it is difficult to open. Also, since the slit is provided at right angles to the opening direction, the tip of the fold line of the drawer seal flap is hooked on the fingertip so that the fingertip does not escape (the fingertip hits the end face of the slit). It was hard. In addition, the proposal is to make it easy to confirm the direction of the spout on the side of opening at the time of use, the means that can be opened with the small opening force of the present invention, the means that can cleanly open the spout. There are no means for solving the problems of openability and sealability, such as means that can be used and means for maintaining the sealed state after resealing. Furthermore, the proposal is that the unfolding guide fold line is extended to the fold line position at the bottom of the tapping plate seal flap, so that the spout can be pulled out and stored using the reaction caused by the urging force of the fixed top surface (rebounding with a popping sound). However, there is a problem that it is not performed smoothly.

  Further, regarding the point that the sealed state after the re-sealing of the spout cannot be maintained, for example, “a clip for closing the opening of a paper pack” (see Patent Document 4) and “Paper Container Sealing Tool and Sealing Tool Holder” (Patent Document 5) Have been proposed). However, those proposals require troublesome purchase of a sealing device that closes the spout of the paper pack, and that the sealing device must be repeatedly attached and detached each time it is opened from the spout of the paper pack. It was necessary and troublesome.

  In order to solve the problems of the conventional means for opening the paper-belt type paper container as described above, the present applicant pays attention to the opening function and the sealing function of the spout, and the direction of the spout on the opening side is easy to understand. Based on the idea that a method that can open the spout easily, a method that can cleanly open the spout, and a method that can maintain the sealed state after opening cannot be improved without using tools. , By providing a step at the top of the gobeltop paper container, it is easy to understand the direction of the spout on the opening side, and by opening the opening limit fold line that opens the spout to the maximum, it is easy to open the spout and easy peeling By forming the sealing area in an inverted trapezoidal shape and forming a triangular strong release agent application area facing the opening start end, the force of the initial opening force is not required, or double folding by the folded top panel part is performed. Step Developed a paper-belt type paper bag container that can be peeled off cleanly by providing a double fold to reinforce the opening of the spout and also has a sealing function with a rubber band. This leads to the proposal of the “Gebel top type paper container” of the present invention.

JP 2006-306424 A Japanese Utility Model Publication No. 9-191 JP 2002-104404 A JP-A-8-11875 No. 99/52779

  In view of the above-mentioned problems, the present invention aims to provide a gable-top type paper container that can easily confirm the direction of the spout on the opening side and has both an opening function and a sealing function that conflict with each other.

  The gable top type paper container of the present invention is a gable top type paper container composed of a sealing side blank wife panel, a left blank roof panel, an opening side blank wife panel, and a right blank roof panel, wherein the sealing side blank The wife panel is formed by connecting a bottom panel portion, a triangular folded panel portion and a triangular folded panel portion symmetrically adjacent to the oblique side thereof, and a sealed-side wife rib panel portion, The left blank roof panel includes a body side plate panel portion, a triangular folded panel portion and a bottom panel portion that is symmetrically adjacent to the oblique side thereof, a bottom panel portion, an inclined roof panel portion, and an inclined rib panel portion. A heat seal top panel portion, and the unsealed blank wife panel is heated to the trunk side plate panel portion and the open side surface. Formed by concatenating a bottom panel with a seal bottom flap, a triangular folded panel and a triangular folded panel that is symmetrically adjacent to its hypotenuse, and an opening side rib panel The right blank roof panel is formed by providing heat seal side flaps on the open side surface and forming the same shape as the left blank roof panel and symmetrically connected to the unsealed blank wife panel. Using the laminate having the polyolefin heat seal resin layer as the outer layer, the sealing side blank wife panel, the left blank roof panel, the opening side blank wife panel, and the right blank roof panel are formed into a rectangular tube shape. In a gable-top type paper container formed in a continuous manner, an easy heat-sealing agent is applied to the opening-side wife rib panel portion. And forming a triangular strong release agent application region at the opening start ends of both ends of the easily peelable seal region, and forming the opening limit fold line where the spout opens to the maximum A rib panel portion and the heat seal top panel portion are provided in the inclined rib panel portion and the heat seal top panel portion in the extending direction of the opening guide fold line through the intermediate position where the heat seal top panel portion is connected, and the heat seal top panel portion is in the sealing side direction The shape is taken as a heat-sealed top panel part with a step with the opening limit broken line as a boundary.

  Further, the gable top type paper container of the present invention connects the folded top panel portion above the heat-sealed top panel portion of the blank roof panel portion, cuts off the middle portion of the folded top panel portion, and extends the opening limit folding line. In addition to providing a cut portion that is cut symmetrically with the direction, a means is adopted in which a double folding step is formed in which the vertical width dimension is slightly small and the horizontal width dimension is slightly large.

  According to the gable-top type paper container of the present invention, when the paper container is opened quickly by providing a double fold step at the upper end of the paper container, or visually impaired and visually impaired, In addition, it is possible to easily understand the direction of the spout on the opening side.

  Further, according to the gable top type paper container of the present invention, in the inclined rib panel portion and the heat seal top panel portion from the intermediate position where the heat seal top panel portion is connected from the inclined rib panel portion to the opening limit fold line where the spout opens to the maximum. By providing it in the extending direction of the unsealing guide broken line, the spout is opened to the maximum and an excellent effect is obtained that makes it easy to open.

  Further, according to the gable top type paper container of the present invention, the easily peelable seal region where the anti-heat sealant is applied to the opening side rib panel portion is formed in an inverted trapezoidal shape, and the both ends of the easily peelable seal region are opened. By forming the triangular strong release agent application region facing the start end, an excellent effect can be obtained in which the spout can be peeled off with a small force.

  In addition, according to the gable top type paper container of the present invention, the sealed state after opening is maintained by hanging the used rubber band of food packaging in a general household kitchen on the double folding step by the folded top panel portion. In addition, it is possible to prevent the paper container from dropping due to carelessness or slipping of the handle by placing a finger on the double folding step.

It is an expanded view which shows the whole gable top type | mold paper container in this invention. Example 1 It is principal part expansion explanatory drawing of the gable top type paper container in this invention. It is a procedure figure which shows the opening state of the gable top type paper container in this invention. It is an expanded view which shows the whole another embodiment of the gable top type paper container in this invention. (Example 2) It is principal part expansion explanatory drawing of another embodiment of the gable top type paper container in this invention. It is explanatory drawing which shows another embodiment of the gable top type paper container in this invention. (Example 3)

  The gable-top type paper container of the present invention uses a laminate having paper as a base material and a polyolefin heat seal resin layer as an outer layer, a closed blank wife panel, a left blank roof panel, an opened blank wife panel, and a right In a gable top type paper container formed by connecting a blank roof panel in a square tube shape, an easily peelable seal region where an anti-heat sealant is applied to the opening side rib panel portion is provided in an inverted trapezoidal shape, A triangular strong release agent application area is formed at the opening start end of both ends of the easy-release seal area, and an intermediate position where the inclined rib panel part and the heat seal top panel part are connected to the opening limit fold line where the spout opens to the maximum. Passing through the inclined rib panel and heat seal top panel, it is provided in the extending direction of the unfolding guide fold line, and the heat seal top panel By adopting a means of making the heat seal top panel part with a step with the shape of the sealing side of the opening part as the boundary of the opening limit polyline, the direction of the spout on the opening side can be easily confirmed, and the opening function and sealing function that conflict with each other In the following, an embodiment will be described with reference to the drawings.

  The size and shape of the gable top type paper container of the present invention are not particularly limited to the embodiments described below, and can be arbitrarily changed without departing from the technical idea of the present invention. In addition, the direction indication expressed in the specification is described based on a development view in which the printing surface of the paper container is the front side.

FIG. 1 is a developed view showing the entire gable top type paper container in the present invention.
The gable-top type paper container 1 of the present invention uses a laminated body having paper as a base material and a polyolefin heat seal resin layer as an outer layer, a sealing side blank wife panel 10, a left blank roof panel 20, and an opening side blank wife panel. 30 and the right blank roof panel 40 are connected to each other in a square tube shape.

  The closed-side blank wife panel 10 includes an upper wife panel portion 13 including a body-side plate panel portion 11, a bottom panel portion 12, a triangular folding panel portion 13a, and a triangular folded panel portion 13b that is symmetrically adjacent to the oblique side. And the blocking-side wife rib panel portion 14 are connected to each other.

  The left blank roof panel 20 includes a trunk side plate panel part 21, a bottom panel part 22 composed of a triangular folded panel part 22a and a triangular folded panel part 22b symmetrically adjacent to the oblique side thereof, an inclined roof panel part 23, The inclined rib panel portion 24 and the heat seal top panel portion 25 are connected to each other.

  The opening side blank wife panel 30 includes a body side plate panel part 31, a bottom panel part 32 provided with a heat seal bottom flap 33 on an open side, a triangular folding panel part 33a, and a triangular folded panel part symmetrically adjacent to its hypotenuse. The upper end panel portion 33 constituted by 33b and the opening side end rib panel portion 34 are connected to each other.

  The right blank roof panel 40 is formed by providing a heat-sealing side flap 47 on the open side surface, and having the same shape as the left blank roof panel portion 20 and symmetrically connected to the opening-side blank wife panel portion 30. .

  The easily peelable seal region R is formed on the outer side (printing surface side) of the opening side rib panel portion 34, and an anti-heat sealant is applied to the surface of the polyolefin heat seal resin layer, and an easy-to-peel release agent is applied. A seal region having a higher peelability than the anti-peelable seal region L of the sealing-side wife rib panel portion 14 is formed to improve the peelability when the opening-side wife rib panel portion 34 is opened.

  The anti-peeling seal region L is formed on the outer side (printing surface side) of the blocking side rib panel 14 and an anti-heat sealant is applied to the surface of the polyolefin heat seal resin layer to form a peelable seal region. This improves the peelability of the opening-side wife rib panel 34 at the time of disposal.

  In assembling the side part, the fold line M formed adjacent to the closed blank wife panel 10, the left blank roof panel 20, the unsealed blank wife panel 30, and the right blank roof panel 40 is folded in a mountain. The heat seal side flap 47 of the right blank roof panel 40 is thermocompression-bonded to the side end face of the sealed blank wife panel 10 to form a rectangular tubular box.

  When assembling the bottom part, first, the triangular folded panel part 22a of the left blank roof panel 20 is pushed inward, the triangular folded panel part 22b that is symmetrically adjacent to the hypotenuse is pulled forward, and then the right blank roof panel that faces the opposite side. The triangular folded panel part 42a is pushed inwardly, the triangular folded panel part 42b symmetrically adjacent to the hypotenuse is pulled forward, and then the rectangular bottom panel part 12 of the sealing side blank wife panel 10 is covered. A rectangular bottom panel portion 32 of the unsealed blank wife panel 30 is covered from above, and is further thermocompression-bonded by a heat seal bottom flap 35 from above to form a container shape having an open top.

  When assembling the upper part, first, the triangular folding panel part 13a of the sealing side blank wife panel 10 is first pushed inward, the triangular folding panel part 13b adjacent to the oblique side symmetrically is pulled out, and then the sealing side wife rib panel part. 14 is folded at the middle fold line Y, and the anti-peeling seal region L to which the anti-heat sealant is applied is thermocompression bonded, and then the triangular folding panel portion 33a of the opening side blank wife panel 30 facing the inside is inward. The peelable panel portion 33b that is pushed in and symmetrically adjacent to the hypotenuse is pulled forward, then the fold line Y in the middle of the opening side rib panel portion 34 is valley-folded, and an easily peelable seal to which an anti-heat sealant is applied The region R is thermocompression bonded, and then the heat seal top panel portion 25 of the left blank roof panel 20 and the heat seal top panel of the right blank roof panel 40 are combined. Anti peelable seal area L which is applied to the inside of the pole tip 45 and forms by thermocompression bonding.

FIG. 2 is an enlarged explanatory view of a main part of the gable top type paper container in the present invention.
Sealed blank wife panel 10, left blank roof panel 20, unsealed blank wife panel 30, and right blank roof panel 40 using a laminate having paper as a base material and a polyolefin heat seal resin layer as an outer layer. In the gable top type paper container 1 formed to be connected in a rectangular tube shape, the easily peelable seal region R to which the anti-heat sealant is applied is formed in an inverted trapezoidal shape on the opening-side wife rib panel portion 34, and A triangular strong release agent application region S is formed at the opening start ends 34a at both ends of the peelable seal region R, and the opening limit fold line 60 where the spout 54 opens to the maximum is formed on the inclined rib panel portions 24 and 44 and the heat seal top panel. An opening guide broken line in the inclined rib panel portions 24 and 44 and the heat seal top panel portions 25 and 45 through an intermediate position where the portions 25 and 45 are connected. The heat seal top panel portions 25 and 45 are provided in the extending direction 60, and the shape of the heat seal top panel portions 25 and 45 in the sealing side direction H is formed as stepped heat seal top panel portions 26 and 46 with the unsealing limit folding line 60 as a boundary.

FIG. 2A is an enlarged perspective view showing a main part. FIG. 2B is an enlarged view seen from the opening side. FIG.2 (c) is an enlarged side view which shows the principal part.

The opening start end 34a is formed at the lower end of both ends of the opening side rib panel portion 34 and is the end portion that is opened first when the spout 54 of the gable top type paper container 1 is opened. In order to obtain a structure having no peeling, a triangular strong release agent application region S is formed in the easily peelable seal region R. Further, the triangular strong release agent application region S can be formed into a triangular blank region without being thermocompression bonded.

  The unsealing limit fold line 60 passes through an intermediate position where the inclined rib panel portions 24 and 44 and the heat seal top panel portions 25 and 45 are connected to each other, and is opened in the inclined rib panel portions 24 and 44 and the heat seal top panel portions 25 and 45. By providing in the extending direction of 61, the spout 54 can be opened to the maximum.

  The heat-sealed top panel portions 26 and 46 with a step are top panel portions in which the shape of the heat-seal top panel portions 25 and 45 in the sealing side direction H is provided with a step with the opening limit fold line 60 as a boundary. It is a shape that can be visually and tactilely recognized when opening the spout 54 in the opening side direction K in a hurry, or by an elderly person who is blind or visually impaired.

FIG. 3 is a procedure diagram showing the unsealed state of the gable top type paper container in the present invention.
(1) The opening start ends 34a at both ends of the ridge line folding portion F of the inclined roof panel portion 43 and the triangular folded panel portion 33b are picked and pushed to both sides.
(2) The opening-side wife rib panel 34 is opened and peeled and spread until the upper wife panel 33 formed of the triangular folding panel 33a and the triangular folded panel 33b becomes flat.
(3) Further, in a state where the folding part F is further pinched until the position Q of the folding line at the intermediate position of the opening side rib panel part 34 and the position P of the folding line at the intermediate position of the heat seal top panel parts 26 and 46 are completely exposed. Push it to both sides.
(4) When the position Q of the folding line at the intermediate position of the opening side rib panel 34 is exposed, the position Q of the folding line is picked and the spout 54 is pulled out from the main body and opened.

FIG. 4 is a developed view showing the whole of another embodiment of the gable top type paper container in the present invention.
The gable top type paper container 1 of the present invention has a folded top panel portion 50 connected above the heat seal top panel portions 25 and 45 of the left and right blank roof panels 20 and 40, and cuts an intermediate portion of the folded top panel portion 50. In addition to providing a cut portion 51 that is cut symmetrically with the extension line direction of the unsealing limit fold line 60, the vertical width T is slightly small, the horizontal width V is slightly large, and a double fold step 52 on which the rubber band W is easily applied is provided. To form.

FIG. 5 is an enlarged explanatory view of a main part of another embodiment of the gable top type paper container in the present invention. FIG. 5 (a) shows a perspective view before hooking a rubber band, FIG. 5 (b) shows an enlarged view seen from the unsealing side, and FIG. 5 (c) shows a side view.
Since the double folding step 52 formed by the folded top panel portion 50 is a step that goes around the heat seal top panel portions 25 and 45, the double folding step 52 can be easily sprinkled with a rubber band W. 54 can be hermetically sealed, and the opening of the spout 54 is reinforced by being double-folded (it does not become distorted due to the failure of peeling at the time of opening).

FIG.5 (d) shows the enlarged view seen from the opening side after a rubber band hung.
When the rubber band W is applied to the double folding step 52, the sealed state of the spout 54 can be completely maintained. Further, when reusing, the rubber band W can be easily removed from the double folding step 52 by picking up the part where the middle part of the folded top panel 50 is cut off with the rubber band W with a finger. it can. Further, since the finger is put on the double folding step 52 (see FIG. 5B), the paper container main body can be prevented from falling due to carelessness or slipping of the handle.

FIG. 6 is an explanatory view showing another embodiment of the gable top type paper container in the present invention.
By simply providing hooking grooves 53 for hooking rubber bands at both ends of the heat seal top panel portions 25 and 45, it is possible to prevent the opening side rib panel portion 34 from being opened and to maintain the sealing property of the spout 54. Is possible.

  The gable top type paper container of the present invention can seal the upper part with a rubber band so that the stored items can be tightly stored, so that it can be used as a beverage paper pack container other than a milk paper pack container, or other vegetable or vegetable seeds in a vegetable garden. It can be recycled as a storage container for food and fertilizer, as a live bait for fishing, as well as for mixing bait, and as a simple insect trap for catching insects. The industrial applicability of the gable-top paper container in the present invention is greatly increased. I understand.

DESCRIPTION OF SYMBOLS 1 Gable top type paper container 10 Sealing side blank wife panel 11 Trunk side board panel part 12 Bottom panel part 13 Upper wife panel part 13a Triangle folding panel part 13b Triangle folding panel part 14 Closure side wife rib panel part 20 Left blank roof panel 21 Trunk part Side panel portion 22 Bottom panel portion 22a Triangular folded panel portion 22b Triangular folded panel portion 23 Inclined roof panel portion 24 Inclined rib panel portion 25 Heat seal top panel portion 26 Stepped heat seal top panel portion 30 Unsealed blank wife panel 31 Trunk side plate Panel portion 32 Bottom panel portion 33 Upper end panel portion 33a Triangular folded panel portion 33b Triangular folded panel portion 34 Unsealed side rib panel portion 34a Unsealing start end 35 Heat seal bottom flap 40 Right blank roof panel 41 Trunk side plate panel portion 42 Bo Panel panel 42a Triangular folded panel section 42b Triangular folded panel section 43 Inclined roof panel section 44 Inclined rib panel section 45 Heat seal top panel section 46 Stepped heat seal top panel section 47 Heat seal side flap 50 Folded top panel section 51 Cut section 52 Two Heavy folding step 53 Latch groove 54 Spout 60 Opening limit folding line 61 Opening guide folding line T Vertical width V Horizontal width M Folding line (mountain folding line)
Y fold line (valley fold line)
L Anti-peelable seal area R Easy peelable seal area S Strong release agent application area H Sealing side direction K Unsealing side direction W Rubber band F Folded part
P Fold line position Q Fold line position

Claims (2)

A gable-top paper container composed of a sealed blank wife panel, a left blank roof panel, an opened blank wife panel, and a right blank roof panel,
The closed-side blank wife panel includes a trunk-side plate panel part, a bottom panel part, a triangular folded panel part, and a triangular folded panel part symmetrically adjacent to the oblique side thereof, and an upper wife panel part, Rib panel part is formed and connected,
The left blank roof panel includes a body side plate panel portion, a triangular folded panel portion and a bottom panel portion that is symmetrically adjacent to the oblique side thereof, a bottom panel portion, an inclined roof panel portion, and an inclined rib panel portion. The heat seal top panel portion is connected to the
The opening side blank wife panel is composed of a body side plate panel part, a bottom panel part provided with a heat seal bottom flap on the open side, a triangular folding panel part and a triangular folded panel part symmetrically adjacent to the oblique side thereof. The upper wife panel portion and the opening side wife rib panel portion are connected to each other,
The right blank roof panel is formed so as to be symmetrically connected to the unsealed blank wife panel in the same shape as the left blank roof panel part by providing a heat seal side flap on the open side,
Using a laminate having a paperboard as a base material and a polyolefin heat seal resin layer as an outer layer, the sealing side blank wife panel, the left blank roof panel, the opening side blank wife panel, and the right blank roof panel. In a gable top type paper container formed to be connected in a rectangular tube shape,
While forming an easily peelable seal region in which an anti-heat sealant is applied to the opening-side wife rib panel part in an inverted trapezoidal shape,
Forming a triangular strong release agent application region at the opening start end of both ends of the easy peelable seal region;
An extending direction of the opening guide folding line in the inclined rib panel portion and the heat seal top panel portion through an intermediate position where the inclined rib panel portion and the heat seal top panel portion are connected to each other through an opening limit broken line where the spout is opened to the maximum And provided in
A gable-top type paper container characterized in that the shape of the heat-seal top panel part in the sealing side direction is a heat-seal top panel part with a step with the unsealing limit fold line as a boundary. Folding the top panel part over the heat seal top panel part of the blank roof panel part,
While cutting off the middle part of the folded top panel part and providing a cut part that is cut symmetrically with the extension line direction of the unsealing limit fold line,
2. The gable top type paper container according to claim 1, wherein a double fold step having a slightly smaller vertical dimension and a slightly larger lateral dimension is formed.