JP2000168798A - Granular article packaging bag, and its manufacture - Google Patents
Granular article packaging bag, and its manufactureInfo
- Publication number
- JP2000168798A JP2000168798A JP10342937A JP34293798A JP2000168798A JP 2000168798 A JP2000168798 A JP 2000168798A JP 10342937 A JP10342937 A JP 10342937A JP 34293798 A JP34293798 A JP 34293798A JP 2000168798 A JP2000168798 A JP 2000168798A
- Authority
- JP
- Japan
- Prior art keywords
- bag
- seal
- sealing
- discontinuous
- plastic film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000004806 packaging method and process Methods 0.000 title claims description 21
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000002985 plastic film Substances 0.000 claims abstract description 25
- 229920006255 plastic film Polymers 0.000 claims abstract description 25
- 230000037303 wrinkles Effects 0.000 claims abstract description 17
- 239000008187 granular material Substances 0.000 claims description 27
- 238000012856 packing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 11
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 229920000092 linear low density polyethylene Polymers 0.000 description 3
- 239000004707 linear low-density polyethylene Substances 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Bag Frames (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、粒状物を包装する
ための袋に関する。詳しくは、米や麦等の穀類、肥料、
飼料等の粒状の物品を包装するための袋に関する。[0001] The present invention relates to a bag for packaging a granular material. Specifically, cereals such as rice and wheat, fertilizers,
The present invention relates to a bag for packaging granular articles such as feed.
【０００２】[0002]
【従来の技術】従来のプラスチック製袋に、米や麦等の
穀類や、肥料、飼料等の粒状の物質（以下、粒状物と称
す。）を詰め、充填口をシールすると、袋内部に気体が
残留する。そのため、袋を積み重ねて保管すると、安定
が悪く、袋が崩れ落ちる恐れがあった。しかしながら、
袋を積み重ねずに保管すると、広い保管スペースが必要
となり、保管の効率が低下する。 このような問題を解
決する手段として、図３に示すように、袋の全面、もし
くは一部に小さな孔７を開けた袋（Ａ）や、袋の底が非
連続シール３で形成された袋（Ｂ）等が提案されてい
る。2. Description of the Related Art A conventional plastic bag is filled with granular substances (hereinafter referred to as "granules") such as cereals such as rice and barley, fertilizers and feed, and the filling port is sealed. Remain. Therefore, when the bags are stacked and stored, the stability is poor, and the bags may collapse. However,
Storing bags without stacking them requires a large storage space and reduces storage efficiency. As a means for solving such a problem, as shown in FIG. 3, a bag (A) in which a small hole 7 is formed on the entire surface or a part of the bag, or a bag in which the bottom of the bag is formed by a discontinuous seal 3. (B) and the like have been proposed.
【０００３】袋の全面、もしくは一部に小さな孔７を開
けた袋（Ａ）は、小さな孔８を通して気体を抜くため、
気体を排出する速度が遅いという欠点があった。特に、
袋を積み重ねて置いた場合、多数の孔７が上下に積まれ
た袋によって閉塞されてしまうので、袋内の気体を排出
する速度は更に遅くなる。気体排出速度を早めるために
孔７のサイズを大きくすることも検討されたが、孔７が
大きくなると該孔７から異物が混入するという問題があ
った。また、孔７を有していると、水がこぼれている所
に誤って袋を置いた場合、該孔７から水が袋内部に進入
し、内容物を変質させるという問題があった。[0003] A bag (A) having a small hole 7 formed on the entire surface or a part of the bag releases gas through the small hole 8.
There is a disadvantage that the speed of discharging the gas is slow. In particular,
When the bags are stacked and placed, many holes 7 are closed by the bags stacked one above the other, so that the speed of discharging the gas in the bags is further reduced. It has been considered to increase the size of the hole 7 in order to increase the gas discharge speed. However, when the hole 7 becomes large, there is a problem that foreign matter enters from the hole 7. Further, when the bag has the hole 7, if the bag is erroneously placed in a place where water is spilled, there is a problem that water enters the bag through the hole 7 and deteriorates the contents.
【０００４】一方、袋の底が非連続シール３で形成され
た袋（Ｂ）は、未シール部４が通気孔となりここから気
体が排出されるのであるが、該未シール部４によって形
成される通気孔は袋の表面に露出していないため、袋の
内部に水が進入してくる恐れはほとんどない。しかしな
がら該未シール部４において、袋表面のプラスチックフ
ィルムと袋裏面のプラスチックフィルムは非常に密着し
易く、袋内部の気体が排出されないことがあった。特
に、内容物が漏れ出さないように、未シール部４を十分
に狭くした場合、圧縮機等を用いて袋を加圧しないと未
シール部４は開かず、気体を排出することはできなかっ
た。On the other hand, in the bag (B) in which the bottom of the bag is formed by the discontinuous seal 3, the unsealed portion 4 becomes a vent and gas is discharged from the vent, but is formed by the unsealed portion 4. Since the vent holes are not exposed on the bag surface, there is almost no risk of water entering the bag. However, in the unsealed portion 4, the plastic film on the bag surface and the plastic film on the back surface of the bag are very easily adhered to each other, and the gas inside the bag may not be discharged. In particular, when the unsealed portion 4 is sufficiently narrowed so that the contents do not leak out, the unsealed portion 4 cannot be opened unless the bag is pressurized using a compressor or the like, and gas cannot be discharged. Was.
【０００５】また、特開平１０−２５８８４６号公報で
は、シール部３の一部に未融着の箇所を残して、これを
通気部とするのであるが、該通気部において表裏のフィ
ルムの長さに差を持たせて、片方のフィルムを外側へ膨
出させ、内側に通気用の穴が自然にできるようにした穀
物包装用袋が提示されている。該袋は、通気部で表裏面
のフィルムが密着しにくく、気体を比較的スムーズに排
出することができる。しかしながら、該袋は通気部で表
裏のフィルムの長さに差をもたせるために、通気部形成
箇所のフィルム間にスペーサを挟み込んだ上で、加熱加
圧したり、或いは片側の加圧体の一部に孔を設け、この
孔から吸気し、加熱加圧時に片方のフィルムを孔の中に
没入変形させたりしなければならなかった。そのため、
従来の製袋機を用いて製袋することができず、新たな装
置を導入するか、製袋機の大幅な改造をしなければなら
なかった。また、製袋時にスペーサを挟み込んだり、或
いは吸気して没入変形させるために、製袋に時間がかか
っていた。In Japanese Unexamined Patent Publication No. 10-258846, an unfused portion is left in a part of the seal portion 3 and is used as a ventilation portion. There is proposed a grain packaging bag in which one of the films is bulged to the outside so that a ventilation hole can be naturally formed inside. In the bag, the films on the front and back surfaces are less likely to adhere to each other in the ventilation portion, and the gas can be discharged relatively smoothly. However, in order for the bag to have a difference in the length of the front and back films at the ventilation portion, the bag is heated and pressed with a spacer interposed between the films at the portion where the ventilation portion is formed, or a part of the pressing body on one side. A hole was formed in the hole, and air was sucked through the hole, and one of the films had to be immersed and deformed in the hole when heated and pressed. for that reason,
It was not possible to make a bag using a conventional bag making machine, and a new device had to be introduced or the bag making machine had to be significantly remodeled. In addition, it takes a long time to form a bag because the spacer is sandwiched during bag making or is immersed and deformed by suction.
【０００６】[0006]
【発明が解決しようとする課題】本発明が解決しようと
する課題は、内容物を漏らさず、袋内の気体をスムーズ
に排出することができる袋で、特殊な機械を必要とせ
ず、極めて簡単に製造できる粒状物包装用製袋、及びそ
の製造方法を提供することである。The problem to be solved by the present invention is a bag capable of smoothly discharging the gas in the bag without leaking the contents. The bag does not require a special machine and is extremely simple. It is an object of the present invention to provide a bag-making method for packaging a granular material which can be manufactured at a low cost.
【０００７】[0007]
【課題を解決するための手段】本発明の粒状物包装用袋
は、袋を形作るシール部の少なくとも一部が非連続であ
り、ここに形成される未シール部から気体を排出するの
であるが、非連続なシールの周囲には皺が入っているの
で、該未シール部で袋表面のフィルムと裏面のフィルム
が密着することがなく、気体がスムーズに排出されるの
である。According to the bag for packaging granular material of the present invention, at least a part of a seal portion forming the bag is discontinuous, and gas is discharged from an unsealed portion formed here. Since there is a wrinkle around the discontinuous seal, the film on the bag surface and the film on the back surface do not adhere to each other at the unsealed portion, and the gas is discharged smoothly.
【０００８】即ち、本発明によるとプラスチックフィル
ムがシールされて成形された袋において、シール部分の
少なくとも一部が非連続であり、非連続なシール周囲に
皺が形成されていることを特徴とする粒状物包装用袋が
提供され、更に、前記非連続シールよりも袋の端部に近
い位置に、別の非連続シールが、前記非連続シールと略
平行に施されていることを特徴とする前記粒状物包装用
袋が提供され、更にまた、プラスチックフィルムをシー
ルして袋状に成形する粒状物包装用袋の製造方法におい
て、シール部の少なくとも一部を、通常のシール温度よ
りも２〜１５℃高く設定したシール機を用いて、非連続
的にシールすることを特徴とする前記粒状物包装用袋の
製造方法が提供される。That is, according to the present invention, in a bag formed by sealing a plastic film, at least a part of the sealing portion is discontinuous, and wrinkles are formed around the discontinuous seal. A granular packaging bag is provided, and another discontinuous seal is provided at a position closer to the end of the bag than the discontinuous seal is substantially parallel to the discontinuous seal. The granular material packaging bag is provided, and further, in a method for manufacturing a granular material packaging bag in which a plastic film is sealed and formed into a bag shape, at least a part of the seal portion is 2 to 2 degrees lower than a normal sealing temperature. A method for producing the granular material packaging bag is provided, wherein the sealing is performed discontinuously using a sealing machine set at 15 ° C. higher.
【０００９】[0009]
【発明の実施の形態】以下、図面に基づいて本発明の実
施の形態を説明する。図１は本発明の一実施例を表す斜
視図（Ａ）、及びそのａ−ａ’断面図（Ｂ）である。本
発明の粒状物包装用袋１はプラスチックフィルム２から
成形される。プラスチックフィルム２を構成する樹脂は
特に限定されず、例えば、低密度ポリエチレン、直鎖状
低密度ポリエチレン、高密度ポリエチレン、エチレン−
ビニルアルコール共重合体、ポリプロピレン、エチレン
−プロピレン共重合体等のオレフィン系樹脂や、ナイロ
ン、ポリエステル等々、従来から粒状物包装用袋に用い
られていた樹脂と同様の樹脂を用いることができる。ま
た、プラスチックフィルム２は単層フィルムであっても
よいが、シール性を良好にする目的で、最内層にシーラ
ント層を積層した多層フィルムであっても良い。シーラ
ント層を構成する樹脂も特に限定されないが、低密度ポ
リエチレン、直鎖状低密度ポリエチレン、エチレン−プ
ロピレン共重合体等を例示することができる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view (A) showing an embodiment of the present invention, and a sectional view (B) of FIG. The bag 1 for packaging a granular material of the present invention is formed from a plastic film 2. The resin constituting the plastic film 2 is not particularly limited. For example, low-density polyethylene, linear low-density polyethylene, high-density polyethylene, ethylene-
An olefin resin such as a vinyl alcohol copolymer, a polypropylene or an ethylene-propylene copolymer, or a resin similar to a resin conventionally used for a bag for packing granular materials, such as nylon and polyester, can be used. Further, the plastic film 2 may be a single-layer film, but may be a multilayer film in which a sealant layer is laminated on the innermost layer for the purpose of improving sealing properties. The resin constituting the sealant layer is not particularly limited, but examples thereof include low-density polyethylene, linear low-density polyethylene, and ethylene-propylene copolymer.
【００１０】また、本発明の粒状物包装用袋１は、プラ
スチックフィルム２にシールが施されて袋状に成形され
ているが、シール部の少なくとも一部は、周囲に皺５の
入った非連続シール３である。図１に示す粒状物包装用
袋１は、底のシールが周囲に皺５の入った非連続シール
３である。非連続シール３によって形成された未シール
部４では、皺５のため袋表面のプラスチックフィルムと
裏面のプラスチックフィルムが密着せずに、若干の隙間
を形成する。そのため、圧縮機等の特殊な装置を用いな
くても、袋内の気体をスムーズに排出することができ
る。The bag 1 for packaging granular material of the present invention is formed by sealing a plastic film 2 to form a bag. At least a part of the seal portion has a non-wrinkle 5 around the periphery. This is a continuous seal 3. The granular material packaging bag 1 shown in FIG. 1 is a discontinuous seal 3 in which the bottom seal has wrinkles 5 around it. In the unsealed portion 4 formed by the discontinuous seal 3, the plastic film on the bag surface and the plastic film on the back surface do not adhere to each other due to the wrinkles 5, and a slight gap is formed. Therefore, the gas in the bag can be smoothly discharged without using a special device such as a compressor.
【００１１】更に、図１に示す粒状物包装用袋１は、非
連続シール３よりも袋の端部側に別の非連続シール３’
が設けられている。非連続シールを二列に設けると、内
容物の漏出をより確実に防ぐことができる。特に、袋中
心側の非連続シール３の未シール部４と、袋端部側の非
連続シール３’の未シール部４’が、一直線上に並ばな
いようにすると効果的である。尚、袋端部側の非連続シ
ール３’は、粒状物の重さが加わることがないので、袋
の端部に極めて近い位置に設けることも可能で、この場
合は特に皺５をつけなくても未シール部４’は開く。し
かしながら、気体排出速度の低下を招かないためには、
外側の非連続シール３’にも皺５を設けておいた方が好
ましい。Further, the granular material packaging bag 1 shown in FIG. 1 has another non-continuous seal 3 ′ on the end side of the bag with respect to the non-continuous seal 3.
Is provided. When the discontinuous seals are provided in two rows, leakage of the contents can be more reliably prevented. In particular, it is effective that the unsealed portion 4 of the discontinuous seal 3 on the bag center side and the unsealed portion 4 'of the discontinuous seal 3' on the bag end side are not aligned on a straight line. In addition, since the weight of the granular material is not added, the discontinuous seal 3 ′ on the bag end side can be provided at a position very close to the end of the bag. However, the unsealed portion 4 'is opened. However, in order not to cause a decrease in the gas discharge rate,
It is preferable that wrinkles 5 are also provided on the outer discontinuous seal 3 ′.
【００１２】図２は、本発明の粒状物包装用袋１の、別
の実施例を表す斜視図（Ａ）〜（Ｄ）である。本発明の
粒状物包装用袋１は、図１に示すように、非連続シール
３、３’が二列になっていても良いが、例えば図２
（Ａ）に示すように一列であっても良い。また、非連続
シール３は、袋を形作るシール部のいずれに設けられて
いてもよく、例えば図２（Ｂ）に示すように、背貼り部
分に設けられていても良い。また、粒状物包装用袋１が
二枚のプラスチックフィルム２の三方をシールした袋で
ある場合、図２（Ｃ）に示すように、袋のサイドに非連
続シール３を設けてもよく、図示はしないが、サイドと
底のシールの全てを非連続シール３としても良い。更に
また、図２（Ｄ）に示すように、サイドシールの途中ま
でを非連続シール３とし、途中からを連続シール６とし
ても良い。FIG. 2 is a perspective view (A) to (D) showing another embodiment of the bag 1 for packing granular material of the present invention. As shown in FIG. 1, the granular material packaging bag 1 of the present invention may have the discontinuous seals 3 and 3 ′ arranged in two rows.
They may be arranged in a line as shown in FIG. In addition, the discontinuous seal 3 may be provided at any of the seal portions forming the bag, and may be provided at the back stuck portion, for example, as shown in FIG. 2 (B). In addition, when the granular material packaging bag 1 is a bag in which three plastic films 2 are sealed on three sides, a discontinuous seal 3 may be provided on the side of the bag as shown in FIG. However, all of the side and bottom seals may be discontinuous seals 3. Furthermore, as shown in FIG. 2 (D), a part of the side seal may be a discontinuous seal 3 and a part of the side seal may be a continuous seal 6.
【００１３】次に、本発明の粒状物包装用袋１の製造方
法について説明する。まず、前述した樹脂からプラスチ
ックフィルム２を製造する。プラスチックフィルム２を
製造する方法は特に限定されず、インフレーション押出
成形法やＴダイ押出成形法等の公知の製造方法を用いる
と良い。プラスチックフィルム２が得られたら、これを
袋状にシールする。袋状にする方法も特に限定されず、
例えば、一枚のプラスチックフィルム２の両端をシール
して円筒状に成形した後、更に底部分をシールしてもよ
く（図２（Ｂ）参照）、また二枚の略四角形のプラスチ
ックフィルム２を重ね合わせて、三方をシールしてもよ
い（図２（Ｃ）（Ｄ）参照）。更にまた、インフレーシ
ョン押出成形法等によって、円筒状のプラスチックフィ
ルム２を製造した場合は、一定長さごとに該プラスチッ
クフィルム２をシールし、カットすることによっても製
造することができる（図２（Ａ）参照）。但し、いずれ
の方法で袋１を製造するにせよ、シール部分の少なくと
も一部は、周辺に皺５の入った非連続シール３とする。Next, a method for manufacturing the bag 1 for packing granular material according to the present invention will be described. First, the plastic film 2 is manufactured from the resin described above. The method for producing the plastic film 2 is not particularly limited, and a known production method such as an inflation extrusion molding method or a T-die extrusion molding method may be used. When the plastic film 2 is obtained, it is sealed in a bag shape. The method of forming the bag is not particularly limited.
For example, after sealing both ends of one plastic film 2 to form a cylindrical shape, the bottom portion may be further sealed (see FIG. 2 (B)), or two substantially square plastic films 2 may be used. The three sides may be sealed by overlapping (see FIGS. 2C and 2D). Further, when the cylindrical plastic film 2 is manufactured by an inflation extrusion molding method or the like, the plastic film 2 can be manufactured by sealing and cutting the plastic film 2 at regular intervals (see FIG. 2 (A)). )reference). However, regardless of which method the bag 1 is manufactured, at least a part of the seal portion is a discontinuous seal 3 having a wrinkle 5 in the periphery.
【００１４】非連続シール３周辺の皺５は、いかなる方
法で設けても良いが、本発明では従来の製袋機で極めて
簡単に皺５を設ける方法として、シール温度を通常より
も高く設定することを提案する。但し、シール温度が高
くなりすぎると、シール強度が低下し、またシール部分
が溶融して破れる恐れがある。逆に、シール温度が通常
のシールと同等、或いはそれより若干高いだけでは、非
連続シール３周辺に皺が発生しない。これらのことを考
慮すると、非連続シール３は、通常のシール温度よりも
２〜１５℃程度高く設定したシール機を用いて行うこと
が好ましい。The wrinkles 5 around the discontinuous seal 3 may be formed by any method, but in the present invention, as a method of forming the wrinkles 5 extremely easily with a conventional bag making machine, the sealing temperature is set higher than usual. Propose that. However, if the sealing temperature is too high, the sealing strength may decrease, and the sealing portion may be melted and broken. Conversely, if the seal temperature is equal to or slightly higher than that of a normal seal, no wrinkles are generated around the discontinuous seal 3. In consideration of the above, it is preferable that the discontinuous sealing 3 is performed using a sealing machine set at about 2 to 15 ° C. higher than a normal sealing temperature.
【００１５】尚、通常のシール温度とは、基材フィルム
を構成する樹脂の種類や厚さ、層構成、雰囲気温度、シ
ール時間、シール圧、シール方法等々によって異なるた
め一概にはいえないが、周囲に皺が入らず、尚かつ十分
な強度を有するシール部を成形するシール機の設定温度
を意味する。例えば、厚さ８０μｍの直鎖状低密度ポリ
エチレンフィルムをシールバーによって１秒間のシール
を行う場合、シール温度は、一概には言えないが、１５
０℃前後に設定されることが多いようである。この場合
通常のシール温度は１５０℃で、本発明の非連続シール
３を行うにはシール機の温度を１５２〜１６５℃程度に
設定して行うことが好ましい。Although the normal sealing temperature differs depending on the type and thickness of the resin constituting the base film, the layer structure, the ambient temperature, the sealing time, the sealing pressure, the sealing method, and the like, it cannot be determined unconditionally. It means a set temperature of a sealing machine that forms a seal portion having no wrinkles around and having sufficient strength. For example, when a linear low-density polyethylene film having a thickness of 80 μm is sealed with a seal bar for one second, the sealing temperature cannot be determined unconditionally.
It seems to be often set at around 0 ° C. In this case, the normal sealing temperature is 150 ° C., and in order to perform the discontinuous sealing 3 of the present invention, it is preferable to set the temperature of the sealing machine to about 152 to 165 ° C.
【００１６】また、本発明の粒状物包装用袋１は、粒状
物が充填され、更に充填口がシールされた状態で流通さ
れるが、充填口に行うシールの少なくとも一部を非連続
シール３としても良い。The bag 1 for packing granular material of the present invention is filled with the granular material, and is circulated in a state where the filling port is sealed. It is good.
【００１７】[0017]
【発明の効果】本発明の粒状物包装用袋は、非連続シー
ルの周辺に皺が入っており、そのため非連続シールに形
成される未シール部において、袋表面のフィルムと袋裏
面のフィルムが密着することが妨げられ、袋内の気体は
スムーズに排出される。また、該未シール部によって形
成される通気孔は袋の表面に露出しておらず、本発明の
粒状物包装用袋を、誤って水のこぼれたところに置いて
も、該未シール部から水が進入してくることはない。The bag for packaging granular material of the present invention has a wrinkle around the discontinuous seal, and therefore, the film on the bag surface and the film on the back surface of the bag in the unsealed portion formed in the discontinuous seal. The close contact is prevented, and the gas in the bag is discharged smoothly. In addition, the ventilation hole formed by the unsealed portion is not exposed on the surface of the bag, and even if the granular packaging bag of the present invention is erroneously placed in a place where water has been spilled, the airtight hole is not formed. Water does not enter.
【００１８】また、該未シール部を十分に小さくしてお
けば、内容物が漏れ出すことはないが、非連続シールを
二列にしておけば、内容物の漏れをより確実に防ぐこと
ができる。更にまた、本発明の粒状物包装用袋は、従来
の製袋機用い、シール機の設定温度を高くするだけで製
袋することができ、特殊な装置を必要としない。Also, if the unsealed portion is made sufficiently small, the contents will not leak, but if the discontinuous seals are arranged in two rows, leakage of the contents can be more reliably prevented. it can. Furthermore, the bag for packing granular materials of the present invention can be made simply by increasing the set temperature of the sealing machine using a conventional bag making machine, and does not require a special device.
【図１】本発明の一実施例を表す斜視図（Ａ）、及びそ
のａ−ａ’断面図（Ｂ）である。FIG. 1A is a perspective view showing an embodiment of the present invention, and FIG.
【図２】本発明の別の実施例を表す斜視図（Ａ）〜
（Ｄ）である。FIG. 2 is a perspective view showing another embodiment of the present invention.
(D).
【図３】従来の粒状物包装用袋を表す斜視図（Ａ）
（Ｂ）である。FIG. 3 is a perspective view (A) showing a conventional bag for packing granular material.
(B).
１ 粒状物包装用袋 ２ プラスチックフィルム ３ 非連続シール ３’ 非連続シール（端部側） ４ 未シール部 ４’ 未シール部（端部側） ５ 皺 ６ 連続シール ７ 孔 DESCRIPTION OF SYMBOLS 1 Bag for packing granular materials 2 Plastic film 3 Non-continuous seal 3 'Non-continuous seal (end side) 4 Unseal part 4' Non-seal part (end side) 5 Wrinkles 6 Continuous seal 7 holes
Claims (3)
成形された袋において、シール部分の少なくとも一部が
非連続であり、非連続なシール３の周囲に皺５が形成さ
れていることを特徴とする粒状物包装用袋１。In a bag formed by sealing a plastic film, at least a part of a sealing portion is discontinuous, and wrinkles are formed around the discontinuous seal. Bag 1 for packing granular material.
い位置に、別の非連続シール３’が、前記非連続シール
３と略平行に施されていることを特徴とする請求項１記
載の粒状物包装用袋１。2. A non-continuous seal (3 ') is provided at a position closer to the end of the bag than the non-continuous seal (3) is substantially parallel to the non-continuous seal (3). 2. The bag 1 for packaging granular materials according to 1.
状に成形する粒状物包装用袋の製造方法において、シー
ル部の少なくとも一部を、通常のシール温度よりも２〜
１５℃高く設定したシール機を用いて、非連続的にシー
ルすることを特徴とする請求項１乃至２のいずれかに記
載の粒状物包装用袋の製造方法。3. A method of manufacturing a bag for packaging granular material, wherein a plastic film 2 is sealed and formed into a bag shape, wherein at least a part of the sealing portion is set at a temperature lower than a normal sealing temperature by 2 to 2.
The method for producing a granular material packaging bag according to any one of claims 1 to 2, wherein the sealing is performed discontinuously using a sealing machine set at 15 ° C higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10342937A JP2000168798A (en) | 1998-12-02 | 1998-12-02 | Granular article packaging bag, and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10342937A JP2000168798A (en) | 1998-12-02 | 1998-12-02 | Granular article packaging bag, and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000168798A true JP2000168798A (en) | 2000-06-20 |
Family
ID=18357678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10342937A Pending JP2000168798A (en) | 1998-12-02 | 1998-12-02 | Granular article packaging bag, and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000168798A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002128099A (en) * | 2000-10-19 | 2002-05-09 | Toohoo Kako Kk | Packaging bag and manufacturing method therefor |
| JP2002211585A (en) * | 2001-01-16 | 2002-07-31 | Dainippon Printing Co Ltd | Air permeable bag |
| JP2010208701A (en) * | 2010-07-02 | 2010-09-24 | Dainippon Printing Co Ltd | Method of manufacturing air-permeable bag |
-
1998
- 1998-12-02 JP JP10342937A patent/JP2000168798A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002128099A (en) * | 2000-10-19 | 2002-05-09 | Toohoo Kako Kk | Packaging bag and manufacturing method therefor |
| JP2002211585A (en) * | 2001-01-16 | 2002-07-31 | Dainippon Printing Co Ltd | Air permeable bag |
| JP2010208701A (en) * | 2010-07-02 | 2010-09-24 | Dainippon Printing Co Ltd | Method of manufacturing air-permeable bag |
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