WO2016088839A1 - Microwave packaging bag - Google Patents
Microwave packaging bag Download PDFInfo
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- WO2016088839A1 WO2016088839A1 PCT/JP2015/084030 JP2015084030W WO2016088839A1 WO 2016088839 A1 WO2016088839 A1 WO 2016088839A1 JP 2015084030 W JP2015084030 W JP 2015084030W WO 2016088839 A1 WO2016088839 A1 WO 2016088839A1
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- packaging bag
- seal
- main body
- shaped
- contour line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
Definitions
- the present invention relates to a microwave packaging bag.
- FIG. 6A is a plan view schematically showing a conventional steam vent seal portion of Patent Document 1
- FIG. 6B is an enlarged view of a portion C of FIG. 6A
- FIG. 6C is a steam vent shown in FIG. It is a figure which shows the state which the seal
- a dot pattern shows the state (heat-welded state) sealed.
- the outer contour line 102 of the steam release seal portion 100 is composed of a pair of inclined portions 102a and a straight portion 102b that connects the tips of the pair of inclined portions 102a.
- the inner contour line 103 of the steam release seal portion 100 includes a pair of inclined portions 103a and a straight portion 103b that connects the tips of the pair of inclined portions 103a.
- This invention is made
- the objective is to provide the packaging bag for microwave ovens which can discharge
- the present invention is grasped by the following configuration.
- the present invention is a packaging bag for a microwave oven, and a main body formed in a bag shape by thermally welding peripheral portions of one or more films, and an outer side than a central portion in the first direction of the main body. And a flap formed in the shape of a palm by a part of the one or more films, the seal having a predetermined width inside the flap.
- the seal part includes a steam vent seal part, and a strip-shaped seal part extending from the steam vent seal part to both ends in the second direction of the main body, the steam vent seal part,
- a first V-shaped portion that is provided so as to protrude toward the central portion of the main body, is continuous from the belt-shaped seal portion, and a tip portion is notched, and a different angle from both oblique sides of the first V-shaped portion
- a variant V composed of a second V-shaped part that continues with Characterized in that it is formed into a shape.
- the first V-shaped portion has an acute virtual tip portion
- the second V-shaped portion has an obtuse tip portion.
- the present invention is such that the second V-shaped part has an obtuse rectangular inner contour line and is continuous with the first V-shaped part. , Having a narrower width than other parts.
- the second V-shaped portion has a flat outer contour line parallel to the straight portion of the inner contour line, and the outer contour line is It is characterized by being formed longer than the straight line portion of the inner contour line.
- FIG. 2 is a sectional view taken along line AA in FIG. 1.
- (A) is a top view which shows typically the steam release seal part which concerns on embodiment
- (b) is the B section enlarged view of (a)
- (c) has peeled the steam release seal part shown by (b).
- FIG. (A) is a plan view schematically showing a conventional steam vent seal part
- (b) is an enlarged view of part C of (a)
- (c) is a state where the steam vent seal part shown in (b) is peeled off.
- the microwave packaging bag 10 is formed by thermally welding the peripheral portions of one or more films (in this example, the first film 11 on the front side of the rectangle and the second film 12 on the back side of the rectangle). And a main body 20 formed in a bag shape.
- the plastic film which has the heat seal property used for a normal packaging bag is applied.
- the plastic film include a single-layer film made of a thermoplastic resin having heat-sealability, a multilayer film in which sheets of thermoplastic resin having heat-sealability are laminated with other thermoplastic resins, and the like.
- the material having good heat sealability include known low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, polypropylene, propylene-ethylene copolymer, ethylene-vinyl acetate copolymer.
- Olefin resins such as olefin resins graft-modified with an ethylenically unsaturated carboxylic acid or its anhydride, polyamides or copolyamide resins having a relatively low melting point or a low softening point, polyester or copolyester resins, polycarbonate resins, etc. It is done.
- various barrier films can be used as another plastic material to be laminated. In the case where a laminated film is used, it is preferable that the thermoplastic resin layers having a good heat seal property such as a resin having a low melting point be heat-welded with the inner surfaces thereof.
- the main body 20 includes an end seal portion 13 that becomes a bottom portion when the contents are filled, an opening portion 15 that is not thermally welded toward the upper side when the contents are filled, and side portions of the first film 11 and the second film 12. And left and right side seal portions 16 formed by heat-welding each other.
- the microwave packaging bag 10 is a space formed between the first film 11 and the second film 12 and surrounded by the left and right side seal portions 16 and the end seal portion 13, and can accommodate contents. 17. In the microwave packaging bag 10, after filling the contents from the opening 15 into the accommodating portion 17 with the opening 15 facing upward, the opening 15 is thermally welded and sealed.
- Various display units 21 that display images, characters, and the like related to products can be printed on the first film 11 and the second film 12.
- one of the two films (here, the first film 11) has a flap 18 formed between the left and right side seal portions 16.
- the flap 18 is located at a position that is biased to the outside (end seal portion 13 side) of the center portion in the extending direction of the side seal portion 16 (corresponding to the “first direction” in the present invention). It is provided over the entire width in the extending direction (corresponding to the “second direction” in the present invention).
- the flap 18 is formed in a palm shape by a part of one or more films (here, a part of the first film 11), and the pair of plane parts 18a to be folded and the upper side parts of the pair of plane parts 18a are connected to each other. It has the return part 18b to connect, and the communication part 18c which is formed in the lower side part of a pair of plane part 18a, and is connected to the accommodating part 17.
- the length h of the flap 18 (corresponding to the distance from the folded portion 18b to the communication portion 18c) can be set as appropriate.
- the flap 18 has a seal portion having a predetermined width therein.
- This seal portion includes left and right side seal portions 18d formed by heat welding the left and right side portions of the pair of flat surface portions 18a, and a steam release seal that can be peeled off when the microwave packaging bag 10 is heated. 18e, and a belt-like seal portion 18f extending from the steam release seal portion 18e to the left and right side seal portions 18d.
- the flap 18 is provided between the steam vent seal portion 18e and the folded portion 18b, and flaps the steam from the steam vent seal portion 18e when the steam vent seal portion 18e is peeled off due to an increase in the steam pressure in the accommodating portion 17.
- FIG. 1 shows a semicircular cut 18g formed along the steam release seal portion 18e as an example of the cut 18g.
- the left and right ends of the folded portion 18b located on the left and right side portions of the flat portion 18a are portions where the side portions of the flat portion 18a are not thermally welded to each other.
- An unsealed portion 23a that escapes from the inside to the outside is formed.
- FIG. 3A is a plan view schematically showing the belt-like seal portion 18f and the steam vent seal portion 18e
- FIG. 3B is an enlarged view of a portion B of FIG. 3A
- FIG. 3C is the steam vent seal shown in FIG. It is a figure which shows the state which the part peeled.
- a dot pattern shows the state by which a pair of plane part 18a is heat-welded.
- the belt-like seal portion 18f is formed in a taper shape, and the seal width gradually widens from the start point P1 of the steam release seal portion 18e toward the left and right end portions of the flap 18.
- the steam release seal portion 18 e is provided so as to protrude toward the central portion side of the main body 20, and is formed in a modified V-shape formed by the first V-shaped portion 30 and the second V-shaped portion 40. .
- the first V-shaped portion 30 is formed in a shape that is continuous from the belt-shaped seal portion 18f and has a tip portion cut away, and a pair of oblique sides 31 and inner contours of both oblique sides 31. And an acute virtual tip 35 extending from the line 32.
- the second V-shaped portion 40 is a portion that continues from the pair of hypotenuses 31 of the first V-shaped portion 30 at different angles, and has an obtuse rectangular inner contour line 41 and a flat outer contour line 42.
- the inner contour line 41 of the second V-shaped portion 40 includes a pair of inclined portions 41a connected to the inner contour line 32 of the pair of oblique sides 31, and a linear portion 41b that connects the tips of the pair of inclined portions 41a.
- the second V-shaped portion 40 has an obtuse virtual tip 43 (an example of the “obtuse tip” in the present invention) obtained by extending a pair of inclined portions 41a.
- the outer contour line 42 of the second V-shaped portion 40 includes a straight portion 42a formed in parallel with the straight portion 41b. The straight portion 42 a connects the tips of the outer contour lines 33 of the pair of hypotenuses 31.
- the second V-shaped portion 40 has a seal width r4 that is narrower than other portions at a position continuous with the first V-shaped portion 30 (hereinafter referred to as “continuous position P2”).
- each part of the belt-like seal portion 18f and the steam vent seal portion 18e are illustrated.
- the length L1 of the seal part that combines the steam release seal part 18e and the belt-like seal part 18f is set to 50 mm or more and 400 mm or less.
- the opening angle ⁇ 1 of the first V-shaped portion 30 is preferably 60 ° to 150 ° and the opening angle ⁇ 2 of the second V-shaped portion 40 is preferably 90 ° to 170 °.
- the seal width r1 of the belt-shaped seal portion 18f is set to 5 mm or more in consideration of the length h of the flap 18 and a seal width r6 described later.
- the seal width r2 is preferably 10 mm or more and 20 mm or less. Further, the seal width r3 of the first V-shaped portion 30 is 2 mm or more and 5 mm or less, and the seal width r4 at the continuous position P2 is not a portion where force is directly applied to the formation of the steam port or opening, but it is the smallest reduction in design Thickness needs to be given, and 0.5 mm or more is suitable. Further, the seal width r5 of the second V-shaped portion 40 in the linear portion 41b is the same level as the seal width r3, and is preferably 2 mm or more and 5 mm or less. Further, it is preferable that the steam port tip height r6 is set smaller than the seal width r2.
- the length L2 of the straight portion 41b of the inner contour line 41 of the second V-shaped portion 40 is preferably 1 mm or more and 6 mm or less.
- the length L3 of the outer contour line 42 (straight line part 42a) of the second V-shaped part 40 is set to be larger than the length L2 of the straight line part 41b. Further, the length L3 of the outer contour line 42 is set to 5 mm or more and 20 mm or less, while the general length L4 (see FIG. 6B) of the conventional linear portion 102b is about 3 mm. .
- the suitable seal strength of the steam release seal portion 18e will be described.
- the heat seal strength (conforming to JIS Z0238) in the steam release seal portion 18e is lower than usual (for example, 5 (N / 15 mm Width) to 40 (N / 15 mm width) or less), and the steam release seal portion 18e is smoothly peeled off by the steam pressure.
- the first V-shaped part 30 is hardly peeled off (remains), functions as an auxiliary part for opening the steam port 51, and the second V-shaped part 40 is It is completely peeled off and functions as a part for forming the steam port 51.
- a steam port 51 having a wide opening according to the length L3 of the outer contour line 42 is obtained.
- microwave packaging bag 10 (Other examples of packaging bags for microwave ovens) Next, another example of the microwave packaging bag will be described with reference to FIG.
- the flap 18 (see FIG. 1) formed by folding a part of the first film 11 into a palm shape is illustrated, but the configuration of the flap can be arbitrarily changed. It is.
- a plurality of (in this example, two) films 61 and 62 constitute a front-side film corresponding to the first film 11 (see FIG. 1).
- the flaps 63 are formed by partially overlapping these two films 61 and 62 and bonding them in a palm-like shape. Then, such a flap 63 is provided with a V-shaped steam vent seal portion 18e (see FIG. 3).
- the unsealed portion 23a (see FIG. 4) and the notch 18g (see FIG. 4) are not necessarily required, and steam from the steam port 51 (see FIG. 3) opens the two films 61 and 62 in the flap 63. It can be discharged from the inside of the flap 63 to the outside through the end 65.
- the microwave packaging bag 60 configured as described above, similarly to the microwave packaging bag 10 (see FIG. 2) described above, even if the boiling point of the contents is high and the vapor pressure is difficult to increase, The steam release seal portion 18e can be smoothly peeled off, and the steam can be discharged well from the steam port 51 having a wide opening.
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Abstract
The purpose of the present invention is to provide a microwave packaging bag enabling excellent discharge of steam even when the content therein has a high boiling point. This microwave packaging bag includes: a main body that is formed into a bag shape by thermally fusing together the peripheral edges of at least one film; and a flap (18) that is provided at a position biased outward from the center of the main body in a first direction while spanning the width of the main body in a second direction, and formed into a steepled configuration by a portion of the at least one film. A steam-releasing seal part (18e) is provided to the flap (18) and also provided so as to protrude toward the center of the main body. The steam-releasing seal part (18e) is formed into an irregular V-shaped configuration constituted from a first V-shaped part (30) that is continuous from a band-like seal part (18f) and missing a tip part thereof, and a second V-shaped part (40) that is continuous at a different angle from both inclined sides (31) of the first V-shaped part (30).
Description
本発明は、電子レンジ用包装袋に関する。
The present invention relates to a microwave packaging bag.
従来、フィルム製の電子レンジ用包装袋において、加熱による内部の蒸気圧上昇により、自動的にフィルムを部分的に剥離させて蒸気を抜く技術が提案されている(例えば、特許文献1参照)。
Conventionally, in a microwave packaging bag made of a film, a technique has been proposed in which the film is partially peeled off automatically due to an increase in the internal vapor pressure by heating, and the vapor is extracted (see, for example, Patent Document 1).
図6(a)は、特許文献1の従来の蒸気抜きシール部を模式的に示す平面図、(b)は(a)のC部拡大図、(c)は(b)に示される蒸気抜きシール部が剥離した状態を示す図である。なお、図6において、ドット模様は密封された状態(熱溶着されている状態)を示す。
6A is a plan view schematically showing a conventional steam vent seal portion of Patent Document 1, FIG. 6B is an enlarged view of a portion C of FIG. 6A, and FIG. 6C is a steam vent shown in FIG. It is a figure which shows the state which the seal | sticker part peeled. In addition, in FIG. 6, a dot pattern shows the state (heat-welded state) sealed.
図6(a)に示される蒸気抜きシール部100は、包装袋本体(図示省略)に形成したフラップ101に設けられる。図6(b)に示すように、蒸気抜きシール部100の外側輪郭線102は、一対の傾斜部102aと、一対の傾斜部102aの先端を結ぶ直線部102bとにより構成される。蒸気抜きシール部100の内側輪郭線103は、一対の傾斜部103aと、一対の傾斜部103aの先端を結ぶ直線部103bとにより構成される。
6A is provided on a flap 101 formed on a packaging bag body (not shown). As shown in FIG. 6B, the outer contour line 102 of the steam release seal portion 100 is composed of a pair of inclined portions 102a and a straight portion 102b that connects the tips of the pair of inclined portions 102a. The inner contour line 103 of the steam release seal portion 100 includes a pair of inclined portions 103a and a straight portion 103b that connects the tips of the pair of inclined portions 103a.
包装袋本体に収容された内容物が電子レンジで加熱されて蒸気圧が上昇すると、内側輪郭線103の直線部103bに力が集中的に加わるため、内側輪郭線103の直線部103bからシールの剥離が始まり、この剥離は、外側輪郭線102の直線部102bを超えたときに停止する。その結果、外側輪郭線102の直線部102bの長さL4に応じた幅の蒸気口105(図6(c)参照)が開口し、この蒸気口105を介して蒸気が外部に抜ける。
When the contents stored in the packaging bag body are heated in the microwave oven and the vapor pressure rises, force is applied intensively to the straight portion 103b of the inner contour line 103. Peeling begins, and the peeling stops when the straight portion 102b of the outer contour line 102 is exceeded. As a result, the steam port 105 (see FIG. 6C) having a width corresponding to the length L4 of the straight portion 102b of the outer contour line 102 is opened, and the steam passes through the steam port 105 to the outside.
ところで、電子レンジ用包装袋には、沸点が100℃以上(例えば、120~130℃)のあんかけなどの食品を内容物として用いる場合がある。この場合、加熱時に蒸気圧が高まりにくいため、従来の蒸気口105の開口幅では十分に蒸気を排出することが困難であり、当該内容物の温度が高温のままで利用者が開封することとなる。
By the way, there are cases where foods such as baked food having a boiling point of 100 ° C. or higher (for example, 120 to 130 ° C.) are used for the packaging bags for microwave ovens. In this case, since it is difficult for the vapor pressure to increase during heating, it is difficult to exhaust the vapor sufficiently with the opening width of the conventional vapor port 105, and the user opens the package while the temperature of the contents remains high. Become.
本発明は、このような事情に鑑みてなされたものであり、その目的は、内容物の沸点が高い場合であっても、蒸気を良好に排出可能な電子レンジ用包装袋を提供することにある。
This invention is made | formed in view of such a situation, The objective is to provide the packaging bag for microwave ovens which can discharge | emit vapor | steam satisfactorily even when the boiling point of the content is high. is there.
このような目的を達成するため、本発明は、以下の構成によって把握される。
(1)本発明は、電子レンジ用包装袋であって、1以上のフィルムの周縁部同士を熱溶着して袋状に形成された本体と、前記本体の第1方向の中央部よりも外側に偏った位置に前記本体の第2方向の幅にわたって設けられ、前記1以上のフィルムの一部によって合掌状に形成されたフラップと、を備え、前記フラップがその内部に所定の幅をもつシール部を有し、前記シール部が、蒸気抜きシール部と、前記蒸気抜きシール部から前記本体の前記第2方向の両端部まで延在する帯状シール部とを含み、前記蒸気抜きシール部が、前記本体の前記中央部側に突出するように設けられ、前記帯状シール部から連続し先端部が切欠けられた第1のV字部と、前記第1のV字部の両斜辺から異なる角度で連続する第2のV字部とから構成される異形V字形状に形成されたことを特徴とする。 In order to achieve such an object, the present invention is grasped by the following configuration.
(1) The present invention is a packaging bag for a microwave oven, and a main body formed in a bag shape by thermally welding peripheral portions of one or more films, and an outer side than a central portion in the first direction of the main body. And a flap formed in the shape of a palm by a part of the one or more films, the seal having a predetermined width inside the flap. The seal part includes a steam vent seal part, and a strip-shaped seal part extending from the steam vent seal part to both ends in the second direction of the main body, the steam vent seal part, A first V-shaped portion that is provided so as to protrude toward the central portion of the main body, is continuous from the belt-shaped seal portion, and a tip portion is notched, and a different angle from both oblique sides of the first V-shaped portion A variant V composed of a second V-shaped part that continues with Characterized in that it is formed into a shape.
(1)本発明は、電子レンジ用包装袋であって、1以上のフィルムの周縁部同士を熱溶着して袋状に形成された本体と、前記本体の第1方向の中央部よりも外側に偏った位置に前記本体の第2方向の幅にわたって設けられ、前記1以上のフィルムの一部によって合掌状に形成されたフラップと、を備え、前記フラップがその内部に所定の幅をもつシール部を有し、前記シール部が、蒸気抜きシール部と、前記蒸気抜きシール部から前記本体の前記第2方向の両端部まで延在する帯状シール部とを含み、前記蒸気抜きシール部が、前記本体の前記中央部側に突出するように設けられ、前記帯状シール部から連続し先端部が切欠けられた第1のV字部と、前記第1のV字部の両斜辺から異なる角度で連続する第2のV字部とから構成される異形V字形状に形成されたことを特徴とする。 In order to achieve such an object, the present invention is grasped by the following configuration.
(1) The present invention is a packaging bag for a microwave oven, and a main body formed in a bag shape by thermally welding peripheral portions of one or more films, and an outer side than a central portion in the first direction of the main body. And a flap formed in the shape of a palm by a part of the one or more films, the seal having a predetermined width inside the flap. The seal part includes a steam vent seal part, and a strip-shaped seal part extending from the steam vent seal part to both ends in the second direction of the main body, the steam vent seal part, A first V-shaped portion that is provided so as to protrude toward the central portion of the main body, is continuous from the belt-shaped seal portion, and a tip portion is notched, and a different angle from both oblique sides of the first V-shaped portion A variant V composed of a second V-shaped part that continues with Characterized in that it is formed into a shape.
(2)本発明は、上記(1)の構成において、前記第1のV字部が鋭角の仮想先端部を有し、かつ、前記第2のV字部が鈍角の先端部を有することを特徴とする。
(2) According to the present invention, in the configuration of (1), the first V-shaped portion has an acute virtual tip portion, and the second V-shaped portion has an obtuse tip portion. Features.
(3)本発明は、上記(1)又は(2)の構成において、前記第2のV字部が、鈍角平角の内側輪郭線を有し、前記第1のV字部と連続する位置において、他の部位よりも狭い幅を有することを特徴とする。
(3) In the configuration of the above (1) or (2), the present invention is such that the second V-shaped part has an obtuse rectangular inner contour line and is continuous with the first V-shaped part. , Having a narrower width than other parts.
(4)本発明は、上記(3)の構成において、前記第2のV字部が、前記内側輪郭線の直線部と平行な平角の外側輪郭線を有し、前記外側輪郭線が、前記内側輪郭線の直線部よりも長く形成されることを特徴とする。
(4) In the configuration according to (3), the second V-shaped portion has a flat outer contour line parallel to the straight portion of the inner contour line, and the outer contour line is It is characterized by being formed longer than the straight line portion of the inner contour line.
本発明によれば、内容物の沸点が高い場合であっても、蒸気を良好に排出可能な電子レンジ用包装袋を提供することができる。
According to the present invention, it is possible to provide a microwave oven packaging bag capable of discharging steam well even when the boiling point of the contents is high.
(実施形態)
以下、添付図面を参照して、本発明を実施するための形態(以下、「実施形態」と称する。)について詳細に説明する。実施形態の説明の全体を通して同じ要素には同じ番号を付している。 (Embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, a mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described in detail with reference to the accompanying drawings. The same number is attached | subjected to the same element through the whole description of embodiment.
以下、添付図面を参照して、本発明を実施するための形態(以下、「実施形態」と称する。)について詳細に説明する。実施形態の説明の全体を通して同じ要素には同じ番号を付している。 (Embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, a mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described in detail with reference to the accompanying drawings. The same number is attached | subjected to the same element through the whole description of embodiment.
(電子レンジ用包装袋の全体構成)
まず、実施形態に係る電子レンジ用包装袋10の全体構成を図1、図2に基づいて説明する。 (Overall structure of packaging bag for microwave oven)
First, the whole structure of thepackaging bag 10 for microwave ovens which concerns on embodiment is demonstrated based on FIG. 1, FIG.
まず、実施形態に係る電子レンジ用包装袋10の全体構成を図1、図2に基づいて説明する。 (Overall structure of packaging bag for microwave oven)
First, the whole structure of the
図1に示すように、電子レンジ用包装袋10は、1以上のフィルム(この例では、矩形の表側の第1フィルム11及び矩形の裏側の第2フィルム12)の周縁部同士を熱溶着して袋状に形成した本体20を備える。
As shown in FIG. 1, the microwave packaging bag 10 is formed by thermally welding the peripheral portions of one or more films (in this example, the first film 11 on the front side of the rectangle and the second film 12 on the back side of the rectangle). And a main body 20 formed in a bag shape.
第1フィルム11及び第2フィルム12の構成材料としては、フィルム同士が熱溶着可能な材料であれば、任意であり、例えば、通常の包装袋に用いられるヒートシ一ル性を有するプラスチックフィルムが適用可能である。プラスチックフィルムとしては、例えば、ヒートシール性を有する熱可塑性樹脂からなる単層のフィルムや、シート類、ヒートシール性を有する熱可塑性樹脂を他の熱可塑性樹脂等と積層した多層フィルムなどが挙げられる。また、ヒートシール性の良好な材料としては、例えば、公知の低密度ポリエチレン、線状低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、ポリプロピレン、プロピレン一エチレン共重合体、エチレン一酢酸ビニル共重合体、エチレン系不飽和カルボン酸あるいはその無水物でグラフト変性されたオレフィン樹脂等のオレフィン系樹脂、比較的低融点あるいは低軟化点のポリアミドあるいはコポリアミド樹脂、ポリエステルあるいはコポリエステル樹脂、ポリカーボネイト樹脂などが挙げられる。また、積層する他のプラスチック材料としては、各種バリアフイルムを使用することができる。なお、積層フィルムを用いる場合は、融点の低い樹脂などヒートシ一ル性の良好な熱可塑性樹脂層同士を内面側にして熱溶着することが好ましい。
As a constituent material of the 1st film 11 and the 2nd film 12, if the films are materials which can be heat-welded, it is arbitrary, for example, the plastic film which has the heat seal property used for a normal packaging bag is applied. Is possible. Examples of the plastic film include a single-layer film made of a thermoplastic resin having heat-sealability, a multilayer film in which sheets of thermoplastic resin having heat-sealability are laminated with other thermoplastic resins, and the like. . Examples of the material having good heat sealability include known low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, polypropylene, propylene-ethylene copolymer, ethylene-vinyl acetate copolymer. Olefin resins such as olefin resins graft-modified with an ethylenically unsaturated carboxylic acid or its anhydride, polyamides or copolyamide resins having a relatively low melting point or a low softening point, polyester or copolyester resins, polycarbonate resins, etc. It is done. Moreover, various barrier films can be used as another plastic material to be laminated. In the case where a laminated film is used, it is preferable that the thermoplastic resin layers having a good heat seal property such as a resin having a low melting point be heat-welded with the inner surfaces thereof.
本体20は、内容物の充填時に底部となるエンドシール部13と、内容物の充填時に上方側に向く熱溶着されていない開口部15と、第1フィルム11及び第2フィルム12の側辺部同士を熱溶着してなる左右のサイドシール部16と、を備える。また、電子レンジ用包装袋10は、第1フィルム11及び第2フィルム12の間に形成され左右のサイドシール部16及びエンドシール部13に囲われる空間であって内容物を収容可能な収容部17を備える。電子レンジ用包装袋10では、開口部15を上方側に向けた状態で、内容物を開口部15から収容部17に充填した後、開口部15を熱溶着して密閉する。なお、第1フィルム11及び第2フィルム12には、商品に関する画像や文字などを表示した各種の表示部21を印刷することができる。
The main body 20 includes an end seal portion 13 that becomes a bottom portion when the contents are filled, an opening portion 15 that is not thermally welded toward the upper side when the contents are filled, and side portions of the first film 11 and the second film 12. And left and right side seal portions 16 formed by heat-welding each other. The microwave packaging bag 10 is a space formed between the first film 11 and the second film 12 and surrounded by the left and right side seal portions 16 and the end seal portion 13, and can accommodate contents. 17. In the microwave packaging bag 10, after filling the contents from the opening 15 into the accommodating portion 17 with the opening 15 facing upward, the opening 15 is thermally welded and sealed. Various display units 21 that display images, characters, and the like related to products can be printed on the first film 11 and the second film 12.
図2に示すように、2枚のフィルムのうち一方のフィルム(ここでは、第1フィルム11)は、左右のサイドシール部16の間に形成されるフラップ18を有する。
As shown in FIG. 2, one of the two films (here, the first film 11) has a flap 18 formed between the left and right side seal portions 16.
このフラップ18は、サイドシール部16の延在方向(本発明にいう「第1方向」に相当)の中央部よりも外側(エンドシール部13側)に偏った位置に、エンドシール部13の延在方向(本発明にいう「第2方向」に相当)の全幅にわたって設けられる。フラップ18は、1以上のフィルムの一部(ここでは、第1フィルム11の一部)によって合掌状に形成されており、折り重なる一対の平面部18aと、一対の平面部18aの上辺部同士を連結する折り返し部18bと、一対の平面部18aの下辺部に形成され収容部17に連通する連通部18cとを有する。フラップ18の長さh(折り返し部18bから連通部18cまでの距離に相当)は、適宜設定可能である。
The flap 18 is located at a position that is biased to the outside (end seal portion 13 side) of the center portion in the extending direction of the side seal portion 16 (corresponding to the “first direction” in the present invention). It is provided over the entire width in the extending direction (corresponding to the “second direction” in the present invention). The flap 18 is formed in a palm shape by a part of one or more films (here, a part of the first film 11), and the pair of plane parts 18a to be folded and the upper side parts of the pair of plane parts 18a are connected to each other. It has the return part 18b to connect, and the communication part 18c which is formed in the lower side part of a pair of plane part 18a, and is connected to the accommodating part 17. The length h of the flap 18 (corresponding to the distance from the folded portion 18b to the communication portion 18c) can be set as appropriate.
図1に戻る。図1に示すように、フラップ18は、その内部に所定の幅をもつシール部を有する。このシール部は、一対の平面部18aの左右の側辺部同士を熱溶着してなる左右の側辺シール部18dと、電子レンジ用包装袋10が加熱されたときに剥離可能な蒸気抜きシール部18eと、蒸気抜きシール部18eから左右の側辺シール部18dまで延在する帯状シール部18fとを含む。さらに、フラップ18は、蒸気抜きシール部18eと折り返し部18bの間に設けられ、収容部17における蒸気圧の上昇より蒸気抜きシール部18eが剥離したときに蒸気抜きシール部18eからの蒸気をフラップ18の内部から外部に逃がす切り込み18gを有する。図1では、切り込み18gの一例として、蒸気抜きシール部18eに沿って形成される半円状の切り込み18gを示している。そして、平面部18aの左右の側辺部に位置する折り返し部18bの左右両端部には、平面部18aの側辺部同士が熱溶着されない部分であって、収容部17からの蒸気をフラップ18の内部から外部に逃がす未シール部23aが形成される。
Return to Figure 1. As shown in FIG. 1, the flap 18 has a seal portion having a predetermined width therein. This seal portion includes left and right side seal portions 18d formed by heat welding the left and right side portions of the pair of flat surface portions 18a, and a steam release seal that can be peeled off when the microwave packaging bag 10 is heated. 18e, and a belt-like seal portion 18f extending from the steam release seal portion 18e to the left and right side seal portions 18d. Further, the flap 18 is provided between the steam vent seal portion 18e and the folded portion 18b, and flaps the steam from the steam vent seal portion 18e when the steam vent seal portion 18e is peeled off due to an increase in the steam pressure in the accommodating portion 17. 18 has a notch 18g that escapes from the inside to the outside. FIG. 1 shows a semicircular cut 18g formed along the steam release seal portion 18e as an example of the cut 18g. The left and right ends of the folded portion 18b located on the left and right side portions of the flat portion 18a are portions where the side portions of the flat portion 18a are not thermally welded to each other. An unsealed portion 23a that escapes from the inside to the outside is formed.
(帯状シール部18f、蒸気抜きシール部18eの構成)
次に、帯状シール部18f及び蒸気抜きシール部18eの構成を図3に基づいて説明する。図3(a)は帯状シール部18f及び蒸気抜きシール部18eを模式的に示す平面図、(b)は(a)のB部拡大図、(c)は(b)に示される蒸気抜きシール部が剥離した状態を示す図である。なお、ドット模様は、一対の平面部18aが熱溶着されている状態を示す。 (Configuration of strip-shapedseal portion 18f and steam vent seal portion 18e)
Next, the structure of the strip | belt-shaped seal |sticker part 18f and the steam release seal | sticker part 18e is demonstrated based on FIG. 3A is a plan view schematically showing the belt-like seal portion 18f and the steam vent seal portion 18e, FIG. 3B is an enlarged view of a portion B of FIG. 3A, and FIG. 3C is the steam vent seal shown in FIG. It is a figure which shows the state which the part peeled. In addition, a dot pattern shows the state by which a pair of plane part 18a is heat-welded.
次に、帯状シール部18f及び蒸気抜きシール部18eの構成を図3に基づいて説明する。図3(a)は帯状シール部18f及び蒸気抜きシール部18eを模式的に示す平面図、(b)は(a)のB部拡大図、(c)は(b)に示される蒸気抜きシール部が剥離した状態を示す図である。なお、ドット模様は、一対の平面部18aが熱溶着されている状態を示す。 (Configuration of strip-shaped
Next, the structure of the strip | belt-shaped seal |
図3(a)に示すように、帯状シール部18fは、テーパ状に形成されており、蒸気抜きシール部18eの開始点P1からフラップ18の左右の端部に向かってシール幅が徐々に広がるように形成される(シール幅r1<シール幅r2)。蒸気抜きシール部18eは、本体20の中央部側に突出するように設けられており、第1のV字部30及び第2のV字部40によって構成される異形V字形状に形成される。
As shown in FIG. 3A, the belt-like seal portion 18f is formed in a taper shape, and the seal width gradually widens from the start point P1 of the steam release seal portion 18e toward the left and right end portions of the flap 18. (Seal width r1 <seal width r2). The steam release seal portion 18 e is provided so as to protrude toward the central portion side of the main body 20, and is formed in a modified V-shape formed by the first V-shaped portion 30 and the second V-shaped portion 40. .
図3(b)に示すように、第1のV字部30は、帯状シール部18fから連続し先端部が切欠けられた形状に形成され、一対の斜辺31と、両斜辺31の内側輪郭線32を延長した鋭角の仮想先端部35とを有する。
As shown in FIG. 3B, the first V-shaped portion 30 is formed in a shape that is continuous from the belt-shaped seal portion 18f and has a tip portion cut away, and a pair of oblique sides 31 and inner contours of both oblique sides 31. And an acute virtual tip 35 extending from the line 32.
第2のV字部40は、第1のV字部30の一対の斜辺31から異なる角度で連続する部分であり、鈍角平角の内側輪郭線41及び平角の外側輪郭線42を有する。第2のV字部40の内側輪郭線41は、一対の斜辺31の内側輪郭線32と連なる一対の傾斜部41aと、一対の傾斜部41aの先端同士を結ぶ直線部41bとからなり、第2のV字部40は、一対の傾斜部41aを延長した鈍角の仮想先端部43(本発明にいう「鈍角の先端部」の一例)を有する。第2のV字部40の外側輪郭線42は、直線部41bと平行に形成される直線部42aからなる。この直線部42aは、一対の斜辺31の外側輪郭線33の先端同士を結ぶ。
The second V-shaped portion 40 is a portion that continues from the pair of hypotenuses 31 of the first V-shaped portion 30 at different angles, and has an obtuse rectangular inner contour line 41 and a flat outer contour line 42. The inner contour line 41 of the second V-shaped portion 40 includes a pair of inclined portions 41a connected to the inner contour line 32 of the pair of oblique sides 31, and a linear portion 41b that connects the tips of the pair of inclined portions 41a. The second V-shaped portion 40 has an obtuse virtual tip 43 (an example of the “obtuse tip” in the present invention) obtained by extending a pair of inclined portions 41a. The outer contour line 42 of the second V-shaped portion 40 includes a straight portion 42a formed in parallel with the straight portion 41b. The straight portion 42 a connects the tips of the outer contour lines 33 of the pair of hypotenuses 31.
さらに、第2のV字部40は、第1のV字部30と連続する位置(以下、「連続する位置P2」と称する)において、他の部位よりも狭いシール幅r4を有する。
Furthermore, the second V-shaped portion 40 has a seal width r4 that is narrower than other portions at a position continuous with the first V-shaped portion 30 (hereinafter referred to as “continuous position P2”).
帯状シール部18f、蒸気抜きシール部18eの各部の寸法を例示する。例えば、蒸気抜きシール部18eと帯状シール部18fを合わせたシール部の長さL1は、50mm以上400mm以下に設定される。この場合、第1のV字部30の開き角θ1は60°以上150°以下、第2のV字部40の開き角θ2は90°以上170°以下が好適である。また、帯状シール部18fのシール幅r1は、フラップ18の長さhや後述するシール幅r6を考慮し、5mm以上に設定される。シール幅r2は10mm以上20mm以下が好適である。また、第1のV字部30のシール幅r3は2mm以上5mm以下、連続する位置P2におけるシール幅r4は、蒸気口形成や開封に対し直接力が加わる部分ではないが、設計上最低減の厚みは持たせる必要があり、0.5mm以上が好適である。また、直線部41bにおける第2のV字部40のシール幅r5は、シール幅r3と同等レベルであり、2mm以上5mm以下が好適である。また、蒸気口先端高さr6は、シール幅r2よりも小さく設定することが好適である。
The dimensions of each part of the belt-like seal portion 18f and the steam vent seal portion 18e are illustrated. For example, the length L1 of the seal part that combines the steam release seal part 18e and the belt-like seal part 18f is set to 50 mm or more and 400 mm or less. In this case, the opening angle θ1 of the first V-shaped portion 30 is preferably 60 ° to 150 ° and the opening angle θ2 of the second V-shaped portion 40 is preferably 90 ° to 170 °. Further, the seal width r1 of the belt-shaped seal portion 18f is set to 5 mm or more in consideration of the length h of the flap 18 and a seal width r6 described later. The seal width r2 is preferably 10 mm or more and 20 mm or less. Further, the seal width r3 of the first V-shaped portion 30 is 2 mm or more and 5 mm or less, and the seal width r4 at the continuous position P2 is not a portion where force is directly applied to the formation of the steam port or opening, but it is the smallest reduction in design Thickness needs to be given, and 0.5 mm or more is suitable. Further, the seal width r5 of the second V-shaped portion 40 in the linear portion 41b is the same level as the seal width r3, and is preferably 2 mm or more and 5 mm or less. Further, it is preferable that the steam port tip height r6 is set smaller than the seal width r2.
第2のV字部40の内側輪郭線41の直線部41bの長さL2は、1mm以上6mm以下が好適である。また、第2のV字部40の外側輪郭線42(直線部42a)の長さL3は、直線部41bの長さL2よりも大きく設定される。また、この外側輪郭線42の長さL3は、従来の直線部102bの一般的な長さL4(図6(b)参照)が3mm程度であるのに対し、5mm以上20mm以下に設定される。
The length L2 of the straight portion 41b of the inner contour line 41 of the second V-shaped portion 40 is preferably 1 mm or more and 6 mm or less. The length L3 of the outer contour line 42 (straight line part 42a) of the second V-shaped part 40 is set to be larger than the length L2 of the straight line part 41b. Further, the length L3 of the outer contour line 42 is set to 5 mm or more and 20 mm or less, while the general length L4 (see FIG. 6B) of the conventional linear portion 102b is about 3 mm. .
次に、蒸気抜きシール部18eの好適なシール強度について述べる。外側輪郭線42の長さL3が大きいほど、蒸気抜きシール部18eを剥離(破壊)させるために必要な蒸気圧も高くなる。このため、蒸気抜きシール部18eにおけるヒートシール強度は、外側輪郭線42の長さL3に応じて適切な大きさに設定する必要がある。本実施形態では、外側輪郭線42の長さL3を比較的長く設定することから、蒸気抜きシール部18eにおけるヒートシール強度(JIS Z0238に準拠)を通常よりも低く(例えば、5(N/15mm幅)以上40(N/15mm幅)以下)に設定して、蒸気抜きシール部18eを蒸気圧によって円滑に剥離させる。
Next, the suitable seal strength of the steam release seal portion 18e will be described. The greater the length L3 of the outer contour line 42, the higher the vapor pressure required to peel (break) the vapor vent seal portion 18e. For this reason, it is necessary to set the heat seal strength in the steam release seal portion 18e to an appropriate size according to the length L3 of the outer contour line 42. In this embodiment, since the length L3 of the outer contour line 42 is set to be relatively long, the heat seal strength (conforming to JIS Z0238) in the steam release seal portion 18e is lower than usual (for example, 5 (N / 15 mm Width) to 40 (N / 15 mm width) or less), and the steam release seal portion 18e is smoothly peeled off by the steam pressure.
(電子レンジ用包装袋の作用)
電子レンジ用包装袋10の作用を図3(c)、図4に基づいて説明する。電子レンジ用包装袋10では、電子レンジで内容物の水分が加熱されて収容部17の蒸気圧が上昇すると、収容部17が膨張する。 (Operation of packaging bag for microwave oven)
The effect | action of thepackaging bag 10 for microwave ovens is demonstrated based on FIG.3 (c) and FIG. In the microwave packaging bag 10, when the moisture of the contents is heated in the microwave oven and the vapor pressure of the storage part 17 increases, the storage part 17 expands.
電子レンジ用包装袋10の作用を図3(c)、図4に基づいて説明する。電子レンジ用包装袋10では、電子レンジで内容物の水分が加熱されて収容部17の蒸気圧が上昇すると、収容部17が膨張する。 (Operation of packaging bag for microwave oven)
The effect | action of the
これにより、図3(c)に示すように、第2のV字部40における内側輪郭線41の直線部41bに力が集中的に加わるため、内側輪郭線41の直線部41bから蒸気抜きシール部18eの剥離が始まり、内側輪郭線41から外側輪郭線42に向かって第2のV字部40が剥離する。この蒸気抜きシール部18eにおける剥離が外側輪郭線42を超えると、蒸気が抜けるが、連続する位置P2付近から残圧でさらに左右に開いていく。そして、シール幅が急激に広くなりつつ、収容部17の内圧とのバランスがとれた位置において剥離が停止する。すなわち、蒸気抜きシール部18eでは、第1のV字部30は、ほとんど剥離されず(残存し)、蒸気口51を開口させるための補助部分として機能し、第2のV字部40は、完全に剥離され、蒸気口51を形成する部分として機能する。その結果、外側輪郭線42の長さL3に応じて広く開口した蒸気口51が得られる。
As a result, as shown in FIG. 3C, force is applied intensively to the straight portion 41 b of the inner contour line 41 in the second V-shaped portion 40. Peeling of the part 18e begins, and the second V-shaped part 40 peels from the inner contour line 41 toward the outer contour line. When the peeling at the steam release seal portion 18e exceeds the outer contour line 42, the steam is released, but further opens left and right from the vicinity of the continuous position P2 with the residual pressure. Then, the separation stops at a position where the balance with the internal pressure of the accommodating portion 17 is balanced while the seal width is rapidly widened. That is, in the steam vent seal part 18e, the first V-shaped part 30 is hardly peeled off (remains), functions as an auxiliary part for opening the steam port 51, and the second V-shaped part 40 is It is completely peeled off and functions as a part for forming the steam port 51. As a result, a steam port 51 having a wide opening according to the length L3 of the outer contour line 42 is obtained.
そして、図4に示すように、収容部17から蒸気口51を通じて抜けた蒸気は、切り込み18g及び未シール部23aを介してフラップ18の内部から外部に排出される。
And as shown in FIG. 4, the vapor | steam which escaped from the accommodating part 17 through the steam port 51 is discharged | emitted from the inside of the flap 18 outside through the notch 18g and the unsealed part 23a.
(実施形態の効果)
以上、説明した実施形態の効果について述べる。本実施形態によれば、内容物の沸点が高く、蒸気圧が高まりにくい場合であっても、蒸気抜きシール部18eを円滑に剥離させ、広く開口した蒸気口51から蒸気を良好に排出可能な電子レンジ用包装袋10を提供することができる。 (Effect of embodiment)
The effects of the embodiment described above will be described. According to the present embodiment, even when the boiling point of the contents is high and the vapor pressure is difficult to increase, the vaporvent seal portion 18e can be smoothly peeled off, and the vapor can be discharged well from the widely opened vapor port 51. A microwave packaging bag 10 can be provided.
以上、説明した実施形態の効果について述べる。本実施形態によれば、内容物の沸点が高く、蒸気圧が高まりにくい場合であっても、蒸気抜きシール部18eを円滑に剥離させ、広く開口した蒸気口51から蒸気を良好に排出可能な電子レンジ用包装袋10を提供することができる。 (Effect of embodiment)
The effects of the embodiment described above will be described. According to the present embodiment, even when the boiling point of the contents is high and the vapor pressure is difficult to increase, the vapor
(電子レンジ用包装袋の他の例)
次に、電子レンジ用包装袋の他の例を図5に基づいて説明する。前述した電子レンジ用包装袋10(図1参照)では、第1フィルム11の一部を合掌状に折り曲げて形成したフラップ18(図1参照)を例示したが、フラップの構成は任意に変更可能である。 (Other examples of packaging bags for microwave ovens)
Next, another example of the microwave packaging bag will be described with reference to FIG. In the above-described microwave packaging bag 10 (see FIG. 1), the flap 18 (see FIG. 1) formed by folding a part of thefirst film 11 into a palm shape is illustrated, but the configuration of the flap can be arbitrarily changed. It is.
次に、電子レンジ用包装袋の他の例を図5に基づいて説明する。前述した電子レンジ用包装袋10(図1参照)では、第1フィルム11の一部を合掌状に折り曲げて形成したフラップ18(図1参照)を例示したが、フラップの構成は任意に変更可能である。 (Other examples of packaging bags for microwave ovens)
Next, another example of the microwave packaging bag will be described with reference to FIG. In the above-described microwave packaging bag 10 (see FIG. 1), the flap 18 (see FIG. 1) formed by folding a part of the
例えば、図5に示すように、電子レンジ用包装袋60では、複数(この例では、2枚)のフィルム61,62で第1フィルム11(図1参照)に相当する表側のフィルムを構成し、これら2枚のフィルム61,62を部分的に重ねて合掌状に貼り合させることにより、フラップ63を形成する。そして、このようなフラップ63に異形V字形状の蒸気抜きシール部18e(図3参照)を設ける。この場合、未シール部23a(図4参照)及び切り込み18g(図4参照)は必ずしも必要なく、蒸気口51(図3参照)からの蒸気は、フラップ63における2枚のフィルム61,62の開放した端部65を介してフラップ63の内部から外部に排出することができる。
For example, as shown in FIG. 5, in the microwave packaging bag 60, a plurality of (in this example, two) films 61 and 62 constitute a front-side film corresponding to the first film 11 (see FIG. 1). The flaps 63 are formed by partially overlapping these two films 61 and 62 and bonding them in a palm-like shape. Then, such a flap 63 is provided with a V-shaped steam vent seal portion 18e (see FIG. 3). In this case, the unsealed portion 23a (see FIG. 4) and the notch 18g (see FIG. 4) are not necessarily required, and steam from the steam port 51 (see FIG. 3) opens the two films 61 and 62 in the flap 63. It can be discharged from the inside of the flap 63 to the outside through the end 65.
このように構成される電子レンジ用包装袋60においても、前述した電子レンジ用包装袋10(図2参照)と同様に、内容物の沸点が高く、蒸気圧が高まりにくい場合であっても、蒸気抜きシール部18eを円滑に剥離させ、広く開口した蒸気口51から蒸気を良好に排出することができる。
Even in the microwave packaging bag 60 configured as described above, similarly to the microwave packaging bag 10 (see FIG. 2) described above, even if the boiling point of the contents is high and the vapor pressure is difficult to increase, The steam release seal portion 18e can be smoothly peeled off, and the steam can be discharged well from the steam port 51 having a wide opening.
以上、実施形態を用いて本発明を説明したが、本発明の技術的範囲は上記実施形態に記載の範囲には限定されないことは言うまでもない。上記実施形態に、多様な変更又は改良を加えることが可能であることが当業者に明らかである。またその様な変更又は改良を加えた形態も本発明の技術的範囲に含まれ得ることが、特許請求の範囲の記載から明らかである。
As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.
10 電子レンジ用包装袋
11 第1フィルム
12 第2フィルム
18 フラップ
20 本体
30 第1のV字部
31 斜辺
32 斜辺の内側輪郭線
33 斜辺の外側輪郭線
35 仮想先端部
40 第2のV字部
41 内側輪郭線
41a 傾斜部
41b 直線部
42 外側輪郭線
42a 直線部
43 仮想先端部
51 蒸気口
60 電子レンジ用包装袋
61 フィルム
62 フィルム
63 フラップ
P2 連続する位置
L2 内側輪郭線の直線部の長さ
L3 外側輪郭線の長さ DESCRIPTION OFSYMBOLS 10 Microwave packaging bag 11 1st film 12 2nd film 18 Flap 20 Main body 30 The 1st V-shaped part 31 The hypotenuse 32 The inside outline 33 of an oblique side The outer outline 35 of an oblique side Virtual tip part 40 2nd V-shaped part 41 Inner outline 41a Inclined part 41b Straight line part 42 Outer outline 42a Straight line part 43 Virtual tip part 51 Steam opening 60 Packaging bag 61 for microwave oven Film 62 Film 63 Flap P2 Continuous position L2 Length of the straight line part of the inner contour line L3 Length of outer contour line
11 第1フィルム
12 第2フィルム
18 フラップ
20 本体
30 第1のV字部
31 斜辺
32 斜辺の内側輪郭線
33 斜辺の外側輪郭線
35 仮想先端部
40 第2のV字部
41 内側輪郭線
41a 傾斜部
41b 直線部
42 外側輪郭線
42a 直線部
43 仮想先端部
51 蒸気口
60 電子レンジ用包装袋
61 フィルム
62 フィルム
63 フラップ
P2 連続する位置
L2 内側輪郭線の直線部の長さ
L3 外側輪郭線の長さ DESCRIPTION OF
Claims (4)
- 電子レンジ用包装袋であって、
1以上のフィルムの周縁部同士を熱溶着して袋状に形成された本体と、
前記本体の第1方向の中央部よりも外側に偏った位置に前記本体の第2方向の幅にわたって設けられ、前記1以上のフィルムの一部によって合掌状に形成されたフラップと、を備え、
前記フラップがその内部に所定の幅をもつシール部を有し、
前記シール部が、蒸気抜きシール部と、前記蒸気抜きシール部から前記本体の前記第2方向の両端部まで延在する帯状シール部とを含み、
前記蒸気抜きシール部が、前記本体の前記中央部側に突出するように設けられ、前記帯状シール部から連続し先端部が切欠けられた第1のV字部と、前記第1のV字部の両斜辺から異なる角度で連続する第2のV字部とから構成される異形V字形状に形成されたことを特徴とする電子レンジ用包装袋。 A microwave packaging bag,
A main body formed in a bag shape by thermally welding peripheral portions of one or more films;
A flap that is provided across a width in the second direction of the main body at a position that is biased to the outside of the central portion in the first direction of the main body, and that is formed in a palm shape by a part of the one or more films,
The flap has a seal portion having a predetermined width therein,
The seal part includes a steam release seal part, and a belt-like seal part extending from the steam release seal part to both ends of the main body in the second direction,
The steam release seal portion is provided so as to protrude toward the central portion side of the main body, and a first V-shaped portion that is continuous from the band-shaped seal portion and has a tip portion cut away, and the first V-shape. A packaging bag for a microwave oven, which is formed into a deformed V-shape formed of a second V-shaped portion continuous at different angles from both oblique sides of the portion. - 前記第1のV字部が鋭角の仮想先端部を有し、かつ、前記第2のV字部が鈍角の先端部を有することを特徴とする請求項1に記載の電子レンジ用包装袋。 The microwave packaging bag according to claim 1, wherein the first V-shaped portion has an acute virtual tip portion, and the second V-shaped portion has an obtuse tip portion.
- 前記第2のV字部が、鈍角平角の内側輪郭線を有し、前記第1のV字部と連続する位置において、他の部位よりも狭い幅を有することを特徴とする請求項1又は2に記載の電子レンジ用包装袋。 The second V-shaped portion has an obtuse rectangular flat inner contour line, and has a width narrower than other portions at a position continuous with the first V-shaped portion. The packaging bag for microwave ovens of 2.
- 前記第2のV字部が、前記内側輪郭線の直線部と平行な平角の外側輪郭線を有し、
前記外側輪郭線が、前記内側輪郭線の直線部よりも長く形成されることを特徴とする請求項3に記載の電子レンジ用包装袋。 The second V-shaped portion has a flat outer contour line parallel to the straight portion of the inner contour line;
The packaging bag for a microwave oven according to claim 3, wherein the outer contour line is formed longer than a straight portion of the inner contour line.
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JPH10101154A (en) * | 1996-09-30 | 1998-04-21 | Sun A Kaken Co Ltd | Packaging bag for heat treatment |
JP2003081359A (en) * | 2001-09-11 | 2003-03-19 | Toyo Seikan Kaisha Ltd | Packaging bag for microwave oven and manufacturing method for packaging item having content filled in packaging bag |
JP2005320023A (en) * | 2004-05-07 | 2005-11-17 | Toyo Seikan Kaisha Ltd | Horizontally placed packaging bag for microwave oven |
JP2013151317A (en) * | 2011-12-28 | 2013-08-08 | Kyoraku Co Ltd | Packaging bag |
WO2013133092A1 (en) * | 2012-03-07 | 2013-09-12 | 凸版印刷 株式会社 | Steam release standing pouch and content-enclosing standing pouch |
WO2014084857A1 (en) * | 2012-11-30 | 2014-06-05 | Curwood, Inc. | Flexible self-sealing self-venting hot-fill container |
-
2014
- 2014-12-03 JP JP2014244712A patent/JP6492592B2/en active Active
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JPH10101154A (en) * | 1996-09-30 | 1998-04-21 | Sun A Kaken Co Ltd | Packaging bag for heat treatment |
JP2003081359A (en) * | 2001-09-11 | 2003-03-19 | Toyo Seikan Kaisha Ltd | Packaging bag for microwave oven and manufacturing method for packaging item having content filled in packaging bag |
JP2005320023A (en) * | 2004-05-07 | 2005-11-17 | Toyo Seikan Kaisha Ltd | Horizontally placed packaging bag for microwave oven |
JP2013151317A (en) * | 2011-12-28 | 2013-08-08 | Kyoraku Co Ltd | Packaging bag |
WO2013133092A1 (en) * | 2012-03-07 | 2013-09-12 | 凸版印刷 株式会社 | Steam release standing pouch and content-enclosing standing pouch |
WO2014084857A1 (en) * | 2012-11-30 | 2014-06-05 | Curwood, Inc. | Flexible self-sealing self-venting hot-fill container |
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