JP6333769B2

JP6333769B2 - Packaging bag

Info

Publication number: JP6333769B2
Application number: JP2015090071A
Authority: JP
Inventors: 育子尾崎; 竹夫高城
Original assignee: Mupack Ozaki Corp
Current assignee: Mupack Ozaki Corp
Priority date: 2015-04-27
Filing date: 2015-04-27
Publication date: 2018-05-30
Anticipated expiration: 2035-04-01
Also published as: JP2016193757A

Description

本発明は、包装袋に関する。 The present invention relates to a packaging bag.

従来、開封後も密封して使用できるように、開口予定箇所にファスナーを設けた包装袋が提案されている（特許文献１参照）。 Conventionally, a packaging bag in which a fastener is provided at a planned opening location has been proposed so that it can be used after being opened (see Patent Document 1).

特開２００４−２４４１１２号公報JP 2004-244112 A

しかし、特許文献１記載の包装袋は、製造工程に於て、一枚のシート材を複数箇所で折り畳んで断面Ｍ字状に形成した後、折畳んだシート材の内側にファスナーを挿入して、ファスナーと４枚のシート材とを同じ位置で一体に溶着しなければならず、ファスナーを精度よく高品質に取着するのが至難であった。また、ファスナーにスライダーを取付ける場合には、シート材の周縁部の一部を切り取る必要があり、切断面に凹凸が生じ非直線状になることが多く、開封後にファスナーで密閉して使用するとしても、体裁が悪いという欠点があった。また、周縁部の切れ端が捨て材となり、無駄なゴミが発生していた。 However, in the manufacturing process, the packaging bag described in Patent Document 1 is formed by folding a sheet material at a plurality of locations into a M-shaped cross section, and then inserting a fastener inside the folded sheet material. The fastener and the four sheet materials had to be welded together at the same position, and it was very difficult to attach the fastener with high accuracy and high quality. In addition, when attaching a slider to a fastener, it is necessary to cut off a part of the peripheral edge of the sheet material, and the cut surface is often uneven and becomes non-linear. However, there was a drawback of poor appearance. Moreover, the scrap of the peripheral part became waste material, and wasteful waste was generated.

そこで、本発明は、開口予定箇所のシート材にファスナーを容易かつ美しく高品質に取着できる包装袋を提供することを目的とする。 Then, an object of this invention is to provide the packaging bag which can attach a fastener to the sheet | seat material of the opening plan location easily and beautifully with high quality.

本発明に係る包装袋は、チャックテープ雄部・チャックテープ雌部が一面に溶着されたシート材が、２箇所の山折線部及び１箇所の谷折線部で折り曲げられ、縦断面Ｍ字状を成す第１シート部・第２シート部・第３シート部・第４シート部を順次重ね合わせた折畳部が形成され、上記チャックテープ雄部と上記チャックテープ雌部が上記第２シート部と上記第３シート部の内面各々の上記山折線部近傍に配設されて上記第２シート部と上記第３シート部を相互に密封可能なファスナーが形成され、該ファスナーが、上記山折線部近傍に配設され、かつ、上記谷折線部に、上記第２シート部と上記第３シート部を切離可能な破断予定線部が配設され、さらに、上記第１シート部と第２シート部が、上記破断予定線部の近傍で溶着されて第１溶着部が形成され、かつ、上記第３シート部と第４シート部が、上記破断予定線部の近傍で溶着されて第２溶着部が形成され、上記第１溶着部及び第２溶着部が、上記谷折線部近傍に配設され、上記第１シート部及び第２シート部の上記第１溶着部より上方に於て、上記第１シート部と第２シート部とが非溶着であるとともに、上記第３シート部と第４シート部の上記第２溶着部よりも上方に於て、上記第３シート部と第４シート部とが非溶着である。 In the packaging bag according to the present invention, a sheet material in which a chuck tape male part and a chuck tape female part are welded to one side is folded at two mountain fold line parts and one valley fold line part, and has a longitudinal cross-section M-shape. A folded portion is formed by sequentially superposing the first sheet portion, the second sheet portion, the third sheet portion, and the fourth sheet portion, and the chuck tape male portion and the chuck tape female portion are connected to the second sheet portion. A fastener that is disposed in the vicinity of the mountain fold line portion of each inner surface of the third sheet portion and that can seal the second sheet portion and the third sheet portion together is formed, and the fastener is in the vicinity of the mountain fold line portion. And the fracture line portion capable of separating the second sheet portion and the third sheet portion is disposed in the valley fold line portion, and further, the first sheet portion and the second sheet portion Is welded in the vicinity of the portion to be broken, and is welded first. There is formed, and the third sheet portion and the fourth sheet portion, the second weld portion is formed by welding in the vicinity of the breakable line portion, the first weld portion and the second weld portion, the Arranged in the vicinity of the valley fold line portion, above the first welded portion of the first sheet portion and the second sheet portion, the first sheet portion and the second sheet portion are not welded, and The third sheet portion and the fourth sheet portion are not welded above the second weld portion of the third sheet portion and the fourth sheet portion .

また、上記折畳部の上記第２シート部と上記第３シート部の内面に、文字と図形と記号と模様と色彩の内の少なくとも１つが印刷されているものである。
また、上記折畳部の上記第２シート部と上記第３シート部の内面の全部又は一部に、上記破断予定線部を破ることを指示するための表示部が印刷されているものである。 Moreover, at least one of a character, a figure, a symbol, a pattern, and a color is printed on the inner surface of the second sheet part and the third sheet part of the folding part.
Further, all or part of the inner surface of the second sheet portion and the third sheet portion of the folded portion, in which the display unit for indicating to break the breakable line portion is printed .

本発明の包装袋によれば、シート材を折畳む前の状態で、シート材の一面に、チャックテープ雄部とチャックテープ雌部を、容易に、かつ、美しく高品質に取着することができる。折畳む前の状態のシート材を連続して送りながら、シート材の一面にチャックテープ雄部とチャックテープ雌部だけを能率よく融着でき、次に、シート材に破断予定線部を美しく高精度に形成でき、製造上の作業能率を向上できる。無駄な捨て材を発生させることなく、容易にスライダーを取付けることができ、開封後も体裁良く使用できる。 According to the packaging bag of the present invention, the chuck tape male part and the chuck tape female part can be easily and beautifully attached with high quality on one surface of the sheet material before the sheet material is folded. it can. While continuously feeding the sheet material before folding, it is possible to efficiently fuse only the male part of the chuck tape and the female part of the chuck tape to one side of the sheet material. It can be formed with high accuracy, and the manufacturing work efficiency can be improved. The slider can be easily attached without generating wasteful waste material, and can be used with good appearance after opening.

本発明の包装袋の製造方法を説明する図であり、（Ａ）は第１次工程及び第２次工程を示す斜視図であり、（Ｂ）はチャックテープ雄部とチャックテープ雌部の拡大斜視図であり、（Ｃ）はシート材の拡大断面図である。It is a figure explaining the manufacturing method of the packaging bag of this invention, (A) is a perspective view which shows a primary process and a secondary process, (B) is an expansion of a chuck tape male part and a chuck tape female part. It is a perspective view and (C) is an expanded sectional view of a sheet material. 第２次工程の拡大断面図である。It is an expanded sectional view of a 2nd process. 第３次工程を示す斜視図である。It is a perspective view which shows a 3rd process. 第３次工程前のシート材の状態を示す拡大断面図である。It is an expanded sectional view which shows the state of the sheet | seat material before a 3rd process. 第３次工程後のシート材の状態を示す拡大断面図である。It is an expanded sectional view which shows the state of the sheet | seat material after a 3rd process. 第４次工程を示す斜視図である。It is a perspective view which shows a 4th process. 第４次工程の拡大断面図である。It is an expanded sectional view of a 4th process. 第４次工程後のシート材の状態を示す拡大断面図である。It is an expanded sectional view which shows the state of the sheet | seat material after a 4th process. 第５次工程を示す斜視図である。It is a perspective view which shows a 5th process. 第５次工程の要部断面図である。It is principal part sectional drawing of a 5th process. 第６次工程を示す斜視図である。It is a perspective view which shows a 6th process. 第７次工程を示す斜視図である。It is a perspective view which shows a 7th process. 本発明の包装袋の実施の一形態を示す正面図である。It is a front view which shows one Embodiment of the packaging bag of this invention. 包装袋の断面側面図である。It is a cross-sectional side view of a packaging bag. 表示部を説明する使用状態の平面図である。It is a top view of the use condition explaining a display part. 要部拡大断面図である。It is a principal part expanded sectional view. 本発明と関係が深い参考例の製造方法を説明する斜視図である。It is a perspective view explaining the manufacturing method of the reference example deeply related to this invention. 本発明と関係が深い参考例を示す正面図である。It is a front view which shows the reference example deeply related to this invention. 包装袋の断面側面図である。It is a cross-sectional side view of a packaging bag. 開封する前の使用状態を示す要部断面図である。It is principal part sectional drawing which shows the use condition before opening. 開封した後の使用状態を示す要部断面図である。It is principal part sectional drawing which shows the use condition after opening. 本発明の包装袋の別の製造方法を説明する斜視図である。It is a perspective view explaining another manufacturing method of the packaging bag of this invention. 本発明の包装袋の別の製造方法を説明する斜視図である。It is a perspective view explaining another manufacturing method of the packaging bag of this invention.

以下、実施の形態を示す図面に基づき本発明を詳説する。
図１（Ａ）に示すように、本発明の包装袋の製造方法は、第１次工程に於て、シート材１を連続的に繰出し、シート材１の一面１ａにチャックテープ雄部２とチャックテープ雌部３を長手方向に沿って平行状に並べて融着する。
チャックテープ雄部２とチャックテープ雌部３は、合成樹脂から成り、凸部２Ａを有するチャックテープ雄部２と、凸部２Ａが嵌合可能な凹部３Ａを有するチャックテープ雌部３（図１（Ｂ）参照）とを、連続して送りながら、シート材１（の一面１ａ）とドラム４の間に挿入する。ドラム４には、チャックテープ雄部２とチャックテープ雌部３に少なくとも対応して複数の凹周溝４Ａが設けられ、この凹周溝４Ａにチャックテープ雄部２・チャックテープ雌部３を嵌め込んで、チャックテープ雄部２とチャックテープ雌部３に熱を加えて、シート材１の一面１ａに融着する。なお、「融着」とは、接着剤を用いることなく、シート材１樹脂とチャックテープ雄部２・チャックテープ雌部３を相互に接合する加工であり、「溶着」あるいは「熱溶着」と言い換えることもできる。 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
As shown in FIG. 1 (A), the manufacturing method of the packaging bag of the present invention is such that, in the first step, the sheet material 1 is continuously fed, and the chuck tape male portion 2 and the one surface 1a of the sheet material 1 are The chuck tape female portions 3 are aligned and fused in parallel along the longitudinal direction.
The chuck tape male part 2 and the chuck tape female part 3 are made of synthetic resin, and the chuck tape male part 2 having the convex part 2A and the chuck tape female part 3 having the concave part 3A into which the convex part 2A can be fitted (FIG. 1). (See (B)) is inserted between the sheet material 1 (one surface 1a) and the drum 4 while being continuously fed. The drum 4 is provided with a plurality of concave circumferential grooves 4A at least corresponding to the chuck tape male portion 2 and the chuck tape female portion 3, and the chuck tape male portion 2 and the chuck tape female portion 3 are fitted into the concave circumferential groove 4A. Then, heat is applied to the chuck tape male part 2 and the chuck tape female part 3 to be fused to the one surface 1 a of the sheet material 1. “Fusing” is a process for joining the sheet material 1 resin, the chuck tape male part 2 and the chuck tape female part 3 to each other without using an adhesive, and is referred to as “welding” or “thermal welding”. In other words.

第１次工程の前工程（第０次工程）に於て、シート材１の一面１ａには、文字、図形、記号、模様、色彩の少なくとも１つが予め印刷されている。
図１（Ｃ）に示すように、シート材１は、三層構造であって、ポリアミド系合成樹脂又はＰＥＴ樹脂から成る中間層２４と、中間層２４の表裏に被覆形成されるＰＰ（ＣＰＰ）又はＰＥから成る保護層２５，２５とを、有している。中間層２４と、一面１ａ側の保護層２５との間に、文字、図形、記号、模様、色彩等を示すインク２６が介在する。保護層２５に着色して、模様や色彩を表現しても良い。また、図示省略するが、シート材１は、中間層２４の一面１ａ側にのみ保護層２５を有する二層構造であって良く、他面１ｂ側の保護層２５を省略しても良い。
なお、図２，図４，図５，図７，図８，図１０，図１４，図１９，図２０，図２１では、シート材１の断面構造を簡略化して図示している。 In the previous process (the 0th process) of the first process, at least one of a character, a figure, a symbol, a pattern, and a color is printed on the one surface 1a of the sheet material 1 in advance.
As shown in FIG. 1C, the sheet material 1 has a three-layer structure, and an intermediate layer 24 made of a polyamide-based synthetic resin or a PET resin, and PP (CPP) coated on the front and back of the intermediate layer 24 Or it has the protective layers 25 and 25 which consist of PE. Between the intermediate layer 24 and the protective layer 25 on the one surface 1a side, ink 26 indicating characters, figures, symbols, patterns, colors, etc. is interposed. The protective layer 25 may be colored to express a pattern or color. Although not shown, the sheet material 1 may have a two-layer structure having the protective layer 25 only on the one surface 1a side of the intermediate layer 24, and the protective layer 25 on the other surface 1b side may be omitted.
2, 4, 5, 7, 8, 10, 14, 19, 20, and 21, the cross-sectional structure of the sheet material 1 is illustrated in a simplified manner.

図１と図２に示すように、第２次工程では、チャックテープ雄部２とチャックテープ雌部３間に於ける幅方向中心線上に、シート材１の一面１ａ側から、加熱した刃９によって、凹溝状の破断予定線部５を形成する。
破断予定線部５は、非貫通状のＶ字溝をもって形成されている。Ｖ字溝の深さ寸法が、シート材１の厚さ寸法の６０％〜３０％に設定されるのが好ましい。破断予定線部５は、シート材１の他の箇所よりも破れ易くなっている。破断予定線部５をミシン目としても良い。なお、破断予定線部５をシート材１の一面１ａに形成する工程を第１次工程とし、チャックテープ雄部２とチャックテープ雌部３をシート材１の一面１ａに融着する工程を第２次工程として、順番を入れ替えても良い。また、図示省略するが、シート材１の他面１ｂ側から破断予定線部５を形成しても良い。 As shown in FIG. 1 and FIG. 2, in the second step, a blade 9 heated from the one surface 1 a side of the sheet material 1 on the center line in the width direction between the male part 2 of the chuck tape and the female part 3 of the chuck tape. Thus, a groove-like planned break line portion 5 is formed.
The planned fracture line portion 5 is formed with a non-penetrating V-shaped groove. The depth dimension of the V-shaped groove is preferably set to 60% to 30% of the thickness dimension of the sheet material 1. The planned break line portion 5 is easier to break than other portions of the sheet material 1. The planned fracture line portion 5 may be perforated. The process of forming the planned fracture line portion 5 on the one surface 1a of the sheet material 1 is a primary step, and the step of fusing the chuck tape male portion 2 and the chuck tape female portion 3 to the one surface 1a of the sheet material 1 is the first step. The order may be changed as a secondary process. Although not shown in the drawings, the planned fracture line portion 5 may be formed from the other surface 1b side of the sheet material 1.

次に、図３に示すように、第３次工程に於て、シート材１を、一面１ａが外側を向くように、破断予定線部５に沿って折り曲げて、折り返し部１７を形成する。
図３では、シート材１を連続して送りつつ三角ガイド板１５に摺接させ、図４から図５に示すように、シート材１を１箇所の折り返し部１７で折り返して２つ折りにする。この際、折り返し部１７の外側に破断予定線部５が配設され、かつ、チャックテープ雄部２の凸部２Ａとチャックテープ雌部３の凹部３Ａが相互に反対方向を向いて配設される。 Next, as shown in FIG. 3, in the third step, the sheet material 1 is bent along the planned fracture line portion 5 so that the one surface 1a faces outward to form the folded portion 17.
In FIG. 3, the sheet material 1 is slidably contacted with the triangular guide plate 15 while being continuously fed, and the sheet material 1 is folded at one folding portion 17 as shown in FIGS. 4 to 5. At this time, the planned fracture line portion 5 is disposed outside the folded portion 17, and the convex portion 2A of the chuck tape male portion 2 and the concave portion 3A of the chuck tape female portion 3 are disposed in opposite directions. The

次に、図６と図７に示すように、第４次工程で、シート材１の折り返し部１７の一面１ａ側から、反折用ガイドローラ６を当てると共に、ガイドローラ６が差込まれるように配設した一対の反折ガイド部材７，７をシート材１の他面１ｂ側から当て、シート材１を２箇所の山折線部１８，１８と１箇所の谷折線部１９に沿って折畳み、断面Ｍ字状の折畳部１０を形成する。
第４次工程後のシート材１は、図８に示すように、第１シート部１１・第２シート部１２・第３シート部１３・第４シート部１４を順次積層した状態となる。折畳部１０の山折線部１８，１８から谷折線部１９までの深さ寸法Ｌは、ガイドローラ６と反折ガイド部材７，７の差込み深さを調節する調節手段２０，２０（図６参照）によって自由に設定変更することができる。 Next, as shown in FIGS. 6 and 7, in the fourth step, the anti-folding guide roller 6 is applied and the guide roller 6 is inserted from the one surface 1 a side of the folded portion 17 of the sheet material 1. A pair of anti-folding guide members 7, 7 disposed on the sheet material 1 is applied from the other surface 1 b side of the sheet material 1, and the sheet material 1 is folded along two mountain fold line portions 18, 18 and one valley fold line portion 19. The fold part 10 having an M-shaped cross section is formed.
As shown in FIG. 8, the sheet material 1 after the fourth step is in a state in which the first sheet portion 11, the second sheet portion 12, the third sheet portion 13, and the fourth sheet portion 14 are sequentially laminated. The depth L from the mountain fold line portions 18 and 18 to the valley fold line portion 19 of the foldable portion 10 is an adjusting means 20 and 20 for adjusting the insertion depth of the guide roller 6 and the anti-fold guide members 7 and 7 (FIG. 6). You can change the settings freely.

図８に於て、チャックテープ雄部２とチャックテープ雌部３が嵌合可能に対向して、第２シート部１２と第３シート部１３を相互に密封可能なファスナー８を形成する。なおかつ、ファスナー８より袋内方寄りに、（谷折線部１９に沿って）破断予定線部５を配設する。
なお、シート材１に折畳部１０を形成した後、送り速度調整装置（図示省略）によって、シート材１を連続送りから間欠送りに変換する。 In FIG. 8, a fastener 8 capable of sealing the second sheet portion 12 and the third sheet portion 13 with each other is formed so that the chuck tape male portion 2 and the chuck tape female portion 3 face each other so as to be fitted. Further, the planned fracture line portion 5 (along the valley fold line portion 19) is disposed closer to the inside of the bag than the fastener 8.
In addition, after forming the folding part 10 in the sheet | seat material 1, the sheet | seat material 1 is converted from a continuous feed to an intermittent feed by a feed speed adjusting device (not shown).

次に、図９と図１０に示すように、第５次工程に於て、シート材１を間欠的に送りつつ、第１シート部１１と第２シート部１２とを相互に溶着し、かつ、第３シート部１３と第４シート部１４とを相互に溶着する。
図１０では、折畳部１０の第２シート部１２・第３シート部１３間に間隔保持部材２３を挿入すると共に、折畳部１０の上下から熱溶着部材２７，２７を圧接して、熱と押圧力を付与することにより、第１シート部１１と第２シート部１２とを相互に、かつ、第３シート部１３と第４シート部１４とを相互に溶着する。第１シート部１１と第２シート部１２との接合箇所を第１溶着部２１とし、第３シート部１３と第４シート部１４との接合箇所を第２溶着部２２とする。第１溶着部２１・第２溶着部２２は、シート材１の長手方向に沿って連続して帯状に形成する。第１溶着部２１・第２溶着部２２の下端縁と谷折線部１９との距離が、第１溶着部２１・第２溶着部２２の帯幅より短くなるように、第１溶着部２１・第２溶着部２２を谷折線部１９の近傍に形成する。 Next, as shown in FIG. 9 and FIG. 10, in the fifth step, the sheet material 1 is intermittently fed while the first sheet portion 11 and the second sheet portion 12 are welded to each other, and The third sheet portion 13 and the fourth sheet portion 14 are welded to each other.
In FIG. 10, the spacing member 23 is inserted between the second sheet portion 12 and the third sheet portion 13 of the folding unit 10, and the heat welding members 27 and 27 are pressed from above and below the folding unit 10 to By applying a pressing force, the first sheet portion 11 and the second sheet portion 12 are welded together, and the third sheet portion 13 and the fourth sheet portion 14 are welded together. A joining location between the first sheet portion 11 and the second sheet portion 12 is referred to as a first welding portion 21, and a joining location between the third sheet portion 13 and the fourth sheet portion 14 is referred to as a second welding portion 22. The first welded portion 21 and the second welded portion 22 are continuously formed in a belt shape along the longitudinal direction of the sheet material 1. The first welded portion 21 and the first welded portion 21 and the second welded portion 22 are arranged so that the distance between the lower edge of the first welded portion 21 and the second welded portion 22 and the valley fold line portion 19 is shorter than the band width of the first welded portion 21 and the second welded portion 22. The second welded portion 22 is formed in the vicinity of the valley fold line portion 19.

次に、図１１に示すように、第６次工程で、シート材１の幅方向全長にわたって幅方向溶着部２８を、所定等ピッチで次々と形成し、切断手段２９によって、幅方向溶着部２８の中央位置でシート材１を切断する。
そして、図１２に示す第７次工程に於て、折畳部１０に、ファスナー８を開閉するためのスライダー３０を取付ける。スライダー３０は、２つのプラスチック製部品３１，３２から成り、一方の部品３１がファスナー８を開くための役割であり、他方の部品３２がファスナー８を閉じるための役割である。スライダー３０は、２つの部品３１，３２を組み合わせた構造としたことで、折畳部１０に容易に取り付けられる。 Next, as shown in FIG. 11, in the sixth step, the width direction weld portions 28 are formed one after another at a predetermined equal pitch over the entire length in the width direction of the sheet material 1, and the width direction weld portions 28 are formed by the cutting means 29. The sheet material 1 is cut at the center position.
Then, in the seventh step shown in FIG. 12, the slider 30 for opening and closing the fastener 8 is attached to the folding unit 10. The slider 30 includes two plastic parts 31 and 32, and one part 31 serves to open the fastener 8, and the other part 32 serves to close the fastener 8. Since the slider 30 has a structure in which the two parts 31 and 32 are combined, the slider 30 can be easily attached to the folding unit 10.

図１〜図１２に示す製造方法により製造される包装袋Ｚは、図１３と図１４に示すように、シート材１が、２箇所の山折線部１８，１８及び１箇所の谷折線部１９で折り曲げられ、縦断面Ｍ字状を成す折畳部１０を備え、折畳部１０の反対側の端部には、被包装物を入れるための開口部３３を有している。チャックテープ雄部２とチャックテープ雌部３（ファスナー８）が山折線部１８，１８の近傍にて第２シート部１２と第３シート部１３の内面に溶着され、第１シート部１１と第２シート部１２が、チャックテープ雄部２とは異なる位置にて、谷折線部１９の近傍で溶着されて第１溶着部２１が形成され、かつ、第３シート部１３と第４シート部１４が、チャックテープ雌部３とは異なる位置にて、谷折線部１９の近傍で溶着されて第２溶着部２２が形成されている。第１溶着部２１・第２溶着部２２は、包装袋Ｚの左右方向（幅方向）全長にわたって細長い帯状に形成されている。包装袋Ｚの左右両端縁部３４，３４は、全長にわたって溶着され、その一端部３４ａ，３４ａをもってスライダー３０の離脱を防止するストッパーを形成している。 As shown in FIGS. 13 and 14, the packaging bag Z manufactured by the manufacturing method illustrated in FIGS. 1 to 12 includes two sheet fold lines 18 and 18 and one valley fold line 19. Is provided with a foldable portion 10 that is bent in the shape of an M-shaped longitudinal section, and has an opening 33 at the opposite end of the foldable portion 10 for containing an article to be packaged. The chuck tape male portion 2 and the chuck tape female portion 3 (fastener 8) are welded to the inner surfaces of the second sheet portion 12 and the third sheet portion 13 in the vicinity of the mountain fold line portions 18, 18, and the first sheet portion 11 and the first sheet portion The two sheet parts 12 are welded in the vicinity of the valley fold line part 19 at a position different from the chuck tape male part 2 to form the first welded part 21, and the third sheet part 13 and the fourth sheet part 14 are formed. However, the second welded portion 22 is formed by welding in the vicinity of the valley fold line portion 19 at a position different from the chuck tape female portion 3. The first welded portion 21 and the second welded portion 22 are formed in an elongated strip shape over the entire length of the packaging bag Z in the left-right direction (width direction). The left and right edge portions 34, 34 of the packaging bag Z are welded over the entire length, and the stoppers that prevent the slider 30 from being detached are formed by the one end portions 34a, 34a.

図１５に示すように、チャックテープ雄部２とチャックテープ雌部３の嵌合を解除して、ファスナー８を開き、さらに、開封する際には、２箇所の山折線部１８，１８付近を指で掴んで引っ張って、破断予定線部５を破り、第２シート部１２と第３シート部１３を切り離して開封する。
シート材１の一面１ａに印刷をする工程で、折畳部１０の谷折線部１９を形成すると見込まれる帯状領域に、破断予定線部５を破ることを指示するための表示部１６を設ける。
表示部１６は、具体的には、破断予定線部５を示す矢印と、「ここを破って下さい」という文字と、から成る。なお、表示部１６は、図例に限定されることはなく、文字や記号を変更し、その他の文字、図形、記号、模様、色彩を追加するも自由である。なお、本発明に於て、谷折線部１９を形成すると見込まれる帯状領域とは、図２に於て、シート材１の一面１ａのチャックテープ雄部２とチャックテープ雌部３の間の帯状領域の全部又は一部であり、さらに言い換えると、折畳部１０の第２シート部１２と第３シート部１３の内面の全部又は一部である（図１４参照）。 As shown in FIG. 15, when the zipper tape male part 2 and the zipper tape female part 3 are disengaged and the fastener 8 is opened and further opened, the vicinity of the two mountain fold line parts 18 and 18 is observed. By grasping and pulling with a finger, the breaking line portion 5 is broken, and the second sheet portion 12 and the third sheet portion 13 are separated and opened.
In the step of printing on one surface 1 a of the sheet material 1, a display unit 16 for instructing to break the planned fracture line portion 5 is provided in a belt-like region expected to form the valley fold line portion 19 of the foldable portion 10.
Specifically, the display unit 16 includes an arrow indicating the planned fracture line portion 5 and a letter “please break here”. The display unit 16 is not limited to the illustrated example, and can freely change characters and symbols and add other characters, figures, symbols, patterns, and colors. In the present invention, the belt-like region that is expected to form the valley fold line portion 19 is a belt-like region between the chuck tape male portion 2 and the chuck tape female portion 3 on the one surface 1a of the sheet material 1 in FIG. It is the whole or part of the region, and in other words, it is the whole or part of the inner surface of the second sheet part 12 and the third sheet part 13 of the folding part 10 (see FIG. 14).

図１６に示すように、シート材１は、（原反の状態で）その一面１ａにのみ、文字や記号等の印刷が予め施されており、シート材１を折り畳むことで、折畳部１０の内側（第２シート部１２と第３シート部１３の内面）に印刷面を形成できる。即ち、シート材１への両面印刷は必要なく、一面１ａにだけ容易に、かつ、低コストで印刷をすることができ、さらに、折畳部１０の内側に表示部１６を設けることも簡単である。 As shown in FIG. 16, the sheet material 1 is printed only on one surface 1 a (in the state of the original fabric) of characters, symbols, and the like, and the folding material 10 is folded by folding the sheet material 1. The printing surface can be formed on the inner side (the inner surfaces of the second sheet portion 12 and the third sheet portion 13). That is, it is not necessary to perform double-sided printing on the sheet material 1, and printing can be performed easily and at low cost only on one side 1 a, and the display unit 16 can be easily provided inside the folding unit 10. is there.

次に、本発明と関係が深い参考例について説明する。
図１７に示すように、シート材１に折畳部１０を形成した後、シート材１を間欠的に送りつつ、折畳部１０の上下から横断面門形の熱溶着部材３５，３５によって熱と押圧力を付与することで、第１シート部１１と第２シート部１２とを相互に溶着し、かつ、第３シート部１３と第４シート部１４とを相互に溶着する。図１７では、第１シート部１１と第２シート部１２が、谷折線部１９の近傍の溶着部３６と山折線部１８の近傍の溶着部３７の２箇所で相互に溶着され、かつ、第３シート部１３と第４シート部１４が、谷折線部１９の近傍の溶着部３６と山折線部１８の近傍の溶着部３７の２箇所で相互に溶着されている。チャックテープ雄部２とチャックテープ雌部３は、山折線部１８近傍の溶着部３７の下端縁より僅かに袋内方よりに配設されている。 Next, reference examples closely related to the present invention will be described.
As shown in FIG. 17, after forming the folding part 10 on the sheet material 1, the sheet material 1 is intermittently fed and heated by the heat welding members 35, 35 having a cross-sectional gate shape from above and below the folding part 10. By applying the pressing force, the first sheet portion 11 and the second sheet portion 12 are welded to each other, and the third sheet portion 13 and the fourth sheet portion 14 are welded to each other. In FIG. 17, the first sheet portion 11 and the second sheet portion 12 are welded to each other at two locations, a welded portion 36 near the valley fold line portion 19 and a welded portion 37 near the mountain fold line portion 18, and The third sheet portion 13 and the fourth sheet portion 14 are welded to each other at two locations, a welded portion 36 near the valley fold line portion 19 and a welded portion 37 near the mountain fold line portion 18. The chuck tape male portion 2 and the chuck tape female portion 3 are disposed slightly inward from the lower end edge of the welded portion 37 in the vicinity of the mountain fold line portion 18.

次に、シート材１の幅方向全長にわたって幅方向溶着部３８を、所定等ピッチで次々と形成すると共に、穿孔手段３９によって、山折線部１８近傍の溶着部３７に貫通孔４０を形成する。そして、切断手段２９によって、幅方向溶着部３８の中央位置でシート材１を切断する。 Next, the width direction weld portions 38 are formed one after another at a predetermined equal pitch over the entire length in the width direction of the sheet material 1, and the through hole 40 is formed in the weld portion 37 near the mountain fold line portion 18 by the punching means 39. And the sheet | seat material 1 is cut | disconnected by the center position of the width direction welding part 38 with the cutting | disconnection means 29. FIG.

図１７の製造方法により製造される包装袋Ｚは、図１８に示すように、折畳部１０に、吊下用の貫通孔４０が設けられている。貫通孔４０は、第１シート部１１・第２シート部１２・第３シート部１３・第４シート部１４を貫通する丸い孔であって、ファスナー８より上部の位置（山折線部１８寄りの位置）に配設されている。折畳部１０が、４つのシート部１１，１２，１３，１４の重ね合わせにより十分な強度を確保しており、貫通孔４０にフックを挿入して吊下げても、折畳部１０が型崩れすることなく荷重を支持できる利点があり、吊下ディスプレイに好適である。また、開封した後でも、貫通孔４０にフックを挿入して吊下げることが可能である。特に、食料品や薬品を収容している場合に衛生的に保管し易い。 As shown in FIG. 18, the packaging bag Z manufactured by the manufacturing method of FIG. 17 is provided with a through-hole 40 for suspension in the folding unit 10. The through hole 40 is a round hole that penetrates the first sheet portion 11, the second sheet portion 12, the third sheet portion 13, and the fourth sheet portion 14, and is located above the fastener 8 (close to the mountain fold line portion 18. Position). The folding part 10 has sufficient strength by overlapping the four sheet parts 11, 12, 13, and 14. Even if the hook is inserted into the through hole 40 and suspended, the folding part 10 is mold-shaped. There is an advantage that the load can be supported without collapsing, which is suitable for a suspended display. Moreover, even after opening, it is possible to insert the hook into the through hole 40 and hang it. In particular, it is easy to store hygienically when food and medicine are stored.

上述した本発明の包装袋Ｚの使用方法（作用）について説明する。
図１９のように、包装袋Ｚに、開口部３３から被包装物Ｘを差し入れて収容し、開口部３３を溶着して閉鎖する。包装袋Ｚの内部は、密封状態となり、収容した被包装物Ｘを湿気から守り、若しくは、乾燥を防止し、衛生的に保護する。 The usage method (action) of the packaging bag Z of the present invention described above will be described.
As shown in FIG. 19, the package X is inserted and accommodated in the packaging bag Z from the opening 33, and the opening 33 is welded and closed. The inside of the packaging bag Z is in a hermetically sealed state, and protects the packaged product X stored therein from moisture, or prevents it from drying and protects it hygienically.

図２０に示すように、２箇所の山折線部１８，１８付近を指で掴んで引っ張って、ファスナー８を開き、折畳部１０を大きく拡開する。第１シート部１１と第２シート部１２が２枚重ねて溶着され、かつ、第３シート部１３と第４シート部１４が２枚重ねて溶着されている為、２箇所の山折線部１８，１８を成す周端縁部が十分な強度を確保し、ファスナー８を容易に開くことができる。
次に、図２１に示すように、さらに折畳部１０を拡開する方向に引張力を付与すると、破断予定線部５が破れて、谷折線部１９に沿って第２シート部１２と第３シート部１３が切り離される。このようにして、開封状態となり、被包装物Ｘの取り出しが可能となる。第１シート部１１と第２シート部１２が谷折線部１９近傍にて相互に溶着され、かつ、第３シート部１３と第４シート部１４が谷折線部１９近傍にて相互に溶着されている為、被包装物Ｘの取り出しの際、第１シート部１１と第２シート部１２の間や、第３シート部１３と第４シート部１４の間に、被包装物Ｘが浸入するのを防止でき、また、被包装物Ｘが第２シート部１２と第３シート部１３に引っ掛かって取り出し辛くなることもない。一旦、開封状態とした後は、気密性は開封前ほど高くはないが、ファスナー８を閉じて準密封状態とすることができる。 As shown in FIG. 20, the two mountain fold line portions 18, 18 are gripped and pulled by a finger, the fastener 8 is opened, and the folding portion 10 is greatly expanded. Since the first sheet portion 11 and the second sheet portion 12 are overlapped and welded, and the third sheet portion 13 and the fourth sheet portion 14 are overlapped and welded, two mountain fold line portions 18 are provided. , 18 can secure sufficient strength and the fastener 8 can be easily opened.
Next, as shown in FIG. 21, when a tensile force is further applied in the direction of expanding the folding portion 10, the planned fracture line portion 5 is broken, and the second sheet portion 12 and the second sheet portion 12 along the valley folding line portion 19. The 3 sheet part 13 is cut off. In this way, the package is opened and the packaged item X can be taken out. The first sheet portion 11 and the second sheet portion 12 are welded to each other in the vicinity of the valley fold line portion 19, and the third sheet portion 13 and the fourth sheet portion 14 are welded to each other in the vicinity of the valley fold line portion 19. Therefore, when the package X is taken out, the package X enters between the first sheet portion 11 and the second sheet portion 12 or between the third sheet portion 13 and the fourth sheet portion 14. In addition, the package X is not caught by the second sheet portion 12 and the third sheet portion 13 and is difficult to take out. Once in the opened state, the airtightness is not as high as that before opening, but the fastener 8 can be closed to be in a semi-sealed state.

図２２と図２３に示すように、１枚のシート材１から包装袋を２丁取りすることも可能である。
図２２に於て、一面１ａに文字や記号等が予め印刷されたシート材１を連続的に繰出し、シート材１の一面１ａに、２本１組のチャックテープ雄部２とチャックテープ雌部３を、幅方向に所定の間隔を開けて２組融着する。ドラム４には、２組のチャックテープ雄部２とチャックテープ雌部３の取着位置に対応して複数の凹周溝４Ａが設けられ、凹周溝４Ａにチャックテープ雄部２・チャックテープ雌部３を挿入し、シート材１の一面１ａに融着する。
次に、２組のチャックテープ雄部２とチャックテープ雌部３の幅方向中心線上の各々に、シート材１の一面１ａ側又は他面１ｂ側から、加熱した刃９によって、凹溝状の破断予定線部５を形成する。即ち、シート材１には、２本の破断予定線部５，５が形成される。 As shown in FIGS. 22 and 23, it is possible to take two packaging bags from one sheet material 1.
In FIG. 22, a sheet material 1 having characters, symbols, etc. printed in advance on one surface 1a is continuously fed out, and one set of two chuck tape male portions 2 and a chuck tape female portion on one surface 1a of the sheet material 1. Two sets of 3 are fused at predetermined intervals in the width direction. The drum 4 is provided with a plurality of concave circumferential grooves 4A corresponding to the attachment positions of the two sets of the chuck tape male part 2 and the chuck tape female part 3, and the chuck tape male part 2 and the chuck tape are provided in the concave circumferential groove 4A. The female part 3 is inserted and fused to the one surface 1 a of the sheet material 1.
Next, each of the two sets of the chuck tape male part 2 and the chuck tape female part 3 on the center line in the width direction is formed into a groove-like shape by a heated blade 9 from the one surface 1a side or the other surface 1b side of the sheet material 1. The planned fracture line portion 5 is formed. That is, two planned break line portions 5 and 5 are formed on the sheet material 1.

図２３では、シート材１を、一面１ａが外側を向くように、２本の破断予定線部５，５に沿って折り曲げて、幅方向両端部に折り返し部１７，１７を形成し、次に、折り返し部１７の各々に、一面１ａ側から反折用ガイドローラ６を当て、かつ、ガイドローラ６が差込まれるように配設した一対の反折ガイド部材７，７をシート材１の他面１ｂ側から当て、シート材１の幅方向両端部を各々に２箇所の山折線部１８，１８と１箇所の谷折線部１９に沿って折畳み、断面Ｍ字状の折畳部１０，１０を、シート材１の２箇所に形成する。そして、シート材１を幅方向中心線に沿って、切断刃４１によって切り離す。このようにして、製造能率を２倍に向上することができる。 In FIG. 23, the sheet material 1 is bent along the two planned break line portions 5 and 5 so that the one surface 1a faces outward, and the folded portions 17 and 17 are formed at both ends in the width direction. A pair of anti-folding guide members 7, 7 disposed so that the anti-folding guide roller 6 is applied to each of the folded portions 17 from the one surface 1 a side and the guide roller 6 is inserted into the other of the sheet material 1. The both ends of the sheet material 1 in the width direction are folded along the two mountain fold line portions 18 and 18 and the one valley fold line portion 19 respectively, and the fold portions 10 and 10 having an M-shaped cross section are applied. Are formed at two locations on the sheet material 1. Then, the sheet material 1 is cut by the cutting blade 41 along the center line in the width direction. In this way, the production efficiency can be improved by a factor of two.

なお、本発明は、設計変更可能であって、例えば、スライダー３０は、上述の構成に限定されるものではなく、変更が可能である。 The present invention can be changed in design. For example, the slider 30 is not limited to the above-described configuration, and can be changed.

以上のように、本発明に係る包装袋は、チャックテープ雄部２・チャックテープ雌部３が一面１ａに溶着されたシート材１が、２箇所の山折線部１８，１８及び１箇所の谷折線部１９で折り曲げられ、縦断面Ｍ字状を成す第１シート部１１・第２シート部１２・第３シート部１３・第４シート部１４を順次重ね合わせた折畳部１０が形成され、チャックテープ雄部２とチャックテープ雌部３が第２シート部１２と第３シート部１３の内面に配設されて第２シート部１２と第３シート部１３を相互に密封可能なファスナー８が形成され、かつ、ファスナー８より袋内方寄りに、第２シート部１２と第３シート部１３を切離可能な破断予定線部５が配設されているので、シート材１を折畳む前の状態で、シート材１の一面１ａに、チャックテープ雄部２とチャックテープ雌部３を、容易に、かつ、美しく高品質に取着することができる。折畳む前の状態のシート材１を連続して送りながら、シート材１の一面１ａにチャックテープ雄部２とチャックテープ雌部３を能率よく融着でき、次に、シート材１に破断予定線部５を美しく高精度に形成でき、製造上の作業能率を向上できる。無駄な捨て材を発生させることなく、容易にスライダー３０を取付けることができ、開封後も体裁良く使用できる。同一厚さ寸法の第１シート部１１・第２シート部１２・第３シート部１３・第４シート部１４によって、縦断面Ｍ字状を成す折畳部１０が、その強度と適度の剛性を確保しつつ薄く形成できる。 As described above, in the packaging bag according to the present invention, the sheet material 1 in which the chuck tape male portion 2 and the chuck tape female portion 3 are welded to the one surface 1a is composed of two fold line portions 18, 18 and one trough. A foldable portion 10 is formed in which the first sheet portion 11, the second sheet portion 12, the third sheet portion 13, and the fourth sheet portion 14 that are bent at the fold line portion 19 and have an M-shaped longitudinal section are sequentially stacked, A fastener 8 is provided in which the chuck tape male part 2 and the chuck tape female part 3 are disposed on the inner surfaces of the second sheet part 12 and the third sheet part 13 so that the second sheet part 12 and the third sheet part 13 can be sealed to each other. Before the sheet material 1 is folded, the planned break line portion 5 that is formed and closer to the inside of the bag than the fastener 8 can be separated from the second sheet portion 12 and the third sheet portion 13. In this state, a chuck tape is applied to one surface 1a of the sheet material 1. The Part 2 and the fastener tape female part 3 easily and can be attached to a beautiful high-quality. While continuously feeding the sheet material 1 before folding, the chuck tape male portion 2 and the chuck tape female portion 3 can be efficiently fused to one surface 1a of the sheet material 1, and then the sheet material 1 is scheduled to be broken. The line part 5 can be formed beautifully and with high accuracy, and the work efficiency in manufacturing can be improved. The slider 30 can be easily attached without generating wasteful waste material, and can be used with good appearance after opening. The first sheet part 11, the second sheet part 12, the third sheet part 13 and the fourth sheet part 14 having the same thickness dimension allow the folding part 10 having an M-shaped longitudinal section to have its strength and appropriate rigidity. It can be formed thin while ensuring.

また、折畳部１０の第２シート部１２と第３シート部１３の内面に、文字と図形と記号と模様と色彩の内の少なくとも１つが印刷されているので、原反の状態でシート材１の一面１ａにだけ容易に、かつ、低コストで印刷をすることができる。即ち、シート材１の一面１ａをもって形成される包装袋の表て面と、折畳部１０の内側（第２シート部１２と第３シート部１３の内面）とに、連続して文字、図形、記号、模様、色彩等を印刷できる。 In addition, since at least one of characters, figures, symbols, patterns, and colors is printed on the inner surfaces of the second sheet portion 12 and the third sheet portion 13 of the folding portion 10, the sheet material in the original fabric state. It is possible to print on only one side 1a easily and at low cost. That is, characters and figures are continuously formed on the front surface of the packaging bag formed with one surface 1a of the sheet material 1 and on the inner side of the folding portion 10 (the inner surfaces of the second sheet portion 12 and the third sheet portion 13). Can print symbols, patterns, colors, etc.

また、折畳部１０の第２シート部１２と第３シート部１３の内面の全部又は一部に、破断予定線部５を破ることを指示するための表示部１６が印刷されているので、開封の際、破断予定線部５を確実に破って、第２シート部１２と第３シート部１３を切り離して開封できる。シート材１の一面１ａにだけ容易に、かつ、低コストで印刷をすることができ、折畳部１０の内側の第２シート部１２と第３シート部１３の内面に表示部１６を容易に形成できる。 Moreover, since the display part 16 for instructing to break the planned fracture line part 5 is printed on all or part of the inner surfaces of the second sheet part 12 and the third sheet part 13 of the folding part 10, At the time of opening, it is possible to reliably break the planned break line portion 5 and separate the second sheet portion 12 and the third sheet portion 13 for opening. Printing can be performed easily and at low cost only on one surface 1 a of the sheet material 1, and the display unit 16 is easily provided on the inner surfaces of the second sheet portion 12 and the third sheet portion 13 inside the folding portion 10. Can be formed.

また、折畳部１０に、吊下用の貫通孔４０が形成されているので、貫通孔４０にフックを挿入して吊下げることができ、吊下ディスプレイに好適である。折畳部１０が４つのシート部１１，１２，１３，１４の重ね合わせにより十分な強度を確保でき、折畳部１０が型崩れすることなく荷重を支持できる。また、開封した後でも、貫通孔４０にフックを挿入して吊下げることが可能で、特に、食料品や薬品を収容している場合に衛生的に保管できる。 Moreover, since the through-hole 40 for suspension is formed in the folding part 10, it can hang by inserting a hook in the through-hole 40, and is suitable for a suspended display. The folding part 10 can ensure sufficient strength by overlapping the four sheet parts 11, 12, 13, 14, and can support the load without causing the folding part 10 to lose its shape. Moreover, even after opening, it is possible to hang by inserting a hook into the through-hole 40, and in particular, it can be stored in a sanitary manner when food or medicine is stored.

１シート材
１ａ一面
２チャックテープ雄部
３チャックテープ雌部
５破断予定線部
８ファスナー
１０折畳部
１１第１シート部
１２第２シート部
１３第３シート部
１４第４シート部
１６表示部
１８山折線部
１９谷折線部
２１第１溶着部
２２第２溶着部
４０貫通孔 DESCRIPTION OF SYMBOLS 1 Sheet | seat material 1a One surface 2 Chuck tape male part 3 Chuck tape female part 5 Breaking line part 8 Fastener 10 Folding part 11 1st sheet part 12 2nd sheet part 13 3rd sheet part 14 4th sheet part 16 Display part 18 Mountain fold line part 19 Valley fold line part 21 1st welding part 22 2nd welding part 40 Through-hole

Claims

The sheet material (1) in which the chuck tape male part (2) and the chuck tape female part (3) are welded to one surface (1a) is composed of two mountain fold line parts (18) and (18) and one valley fold line part. The first sheet part (11), the second sheet part (12), the third sheet part (13), and the fourth sheet part (14), which are bent at (19) and have an M-shaped longitudinal section, are sequentially stacked. A folding part (10) is formed ,
The chuck tape male part (2) and the chuck tape female part (3) are arranged in the vicinity of the mountain fold line part (18) on each inner surface of the second sheet part (12) and the third sheet part (13). Thus, a fastener (8) capable of sealing the second sheet portion (12) and the third sheet portion (13) to each other is formed, and the fastener (8) is connected to the mountain fold line portions (18) (18). Arranged in the vicinity,
And , in the valley fold line part (19), a planned break line part (5) capable of separating the second sheet part (12) and the third sheet part (13) is disposed ,
Furthermore, the first sheet portion (11) and the second sheet section (12), the first welding portion are welded in the vicinity of the breakable line section (5) (21) is formed, and the first The third sheet portion (13) and the fourth sheet portion (14) are welded in the vicinity of the planned fracture line portion (5) to form the second weld portion (22) , and the first weld portion (21) and The second welded portion (22) is disposed in the vicinity of the valley fold line portion (19),
The first sheet portion (11) and the second sheet portion (12) are not connected to each other above the first welded portion (21) of the first sheet portion (11) and the second sheet portion (12). The third sheet portion (13) and the fourth sheet portion are welded and above the second weld portion (22) of the third sheet portion (13) and the fourth sheet portion (14). (14) is a non-welded packaging bag.

The at least one of a character, a figure, a symbol, a pattern, and a color is printed on the inner surface of the second sheet part (12) and the third sheet part (13) of the folding part (10). The packaging bag according to 1.

For instructing the whole or part of the inner surfaces of the second sheet part (12) and the third sheet part (13) of the foldable part (10) to break the planned fracture line part (5). follicle Sobukuro of claim 2, wherein the display unit (16) is printed.