JPH0348068Y2 - - Google Patents
Info
- Publication number
- JPH0348068Y2 JPH0348068Y2 JP1984172021U JP17202184U JPH0348068Y2 JP H0348068 Y2 JPH0348068 Y2 JP H0348068Y2 JP 1984172021 U JP1984172021 U JP 1984172021U JP 17202184 U JP17202184 U JP 17202184U JP H0348068 Y2 JPH0348068 Y2 JP H0348068Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer lid
- packaging bag
- adhesive layer
- adhesive
- bag body
- 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.)
- Expired
Links
- 238000004806 packaging method and process Methods 0.000 claims description 61
- 239000000853 adhesive Substances 0.000 claims description 54
- 230000001070 adhesive effect Effects 0.000 claims description 54
- 239000012790 adhesive layer Substances 0.000 claims description 52
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 19
- 239000010410 layer Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Bag Frames (AREA)
- Packages (AREA)
Description
産業上の利用分野
本考案は、ウエツトテイツシユー等の包装袋に
関し、更に詳述すると包装袋本体に形成した内容
品取出口を繰り返し開閉し得る外蓋を設けてなる
包装袋に関する。
従来の技術
従来、ウエツトテイツシユー用の包装袋とし
て、第４図及び第５図に示したものが知られてい
る。即ち、この従来の包装袋は、内部に内容品
（ウエツトテイツシユー）ａを包装する包装袋本
体ｂの一面に内容品取出口ｃを形成し、この取出
口ｃを覆つてシート状の外蓋ｄを設けてなるもの
である。この外蓋ｄはその裏面に感圧性接着剤層
ｅが形成されており、包装袋本体ｂの一面に剥離
可能に接着されている。この場合、外蓋ｄにはそ
の長さ方向一端側に幅方向両端縁からかぎ状に切
目ｆ，ｆが形成されており、外蓋ｄの長さ方向他
端部の舌片ｇを持つて外蓋ｄの長さ方向一端部に
向けて引張ることにより外蓋ｄが包装袋本体ｂか
ら剥離され、取出口ｃが開口すると共に、更に外
蓋ｄが切目ｆ，ｆに沿つて剥離し、包装袋本体ｂ
に対する外蓋ｄの剥離部分が幅方向両端縁よりも
内側に存する切目ｆ，ｆの先端部f′，f′に至ると、
包装袋本体ｂに対して外蓋ｄを剥離する力よりも
切目ｆ，ｆの外側部分ｈ，ｈを含む外蓋ｄの長さ
方向一端部分ｉの接着力が強くなるため、外蓋ｄ
の剥離が停止し、外蓋ｄ全体が包装袋本体ｂから
剥離することが防止される。この状態で内容品ａ
を取り出し、その後再び一部剥離した外蓋ｄを包
装袋本体ｂに接着することにより、取出口ｃを閉
塞するものである。
しかし、この従来の包装袋は、その外蓋ｄを開
閉しているうち、切目ｆ，ｆの先端部f′，f′に対
し外蓋ｄの長さ方向一端部方向に強い引張り応力
が作用し、これら先端部f′，f′から破れるおそれ
が生じる。
また、上記第４図及び第５図に示された包装袋
において、切目ｆ，ｆを設けずに外蓋ｄの長さ方
向一端部分ｉを熱接着により固着したものもある
が、このような包装袋は、当然包装袋本体ｂの当
該部分に熱接着可能な樹脂層を形成する必要があ
り、この場合一般に熱接着層を部分的に形成する
ことが困難であるため、外表面全体を熱接着層で
被覆するので、包装袋製袋時における包装袋端縁
等の熱接着工程において、本体の熱収縮時、外観
不良を生じる場合があり、また熱接着層を一層余
分に形成するため、製品の価格高を招くことにも
なる。しかも、外蓋ｄも熱接着可能な材質のもの
を使用しなければならず、強度の大きいポリエス
テル、ナイロン等の熱接着が困難なものは使用で
きず、これらを使用する場合は同様に熱接着層を
一層余分に設けることが必要となる。
更に、このように外蓋の長さ方向一端部分を熱
接着或いは強接着力の接着剤で外蓋を強固に固着
した場合、外蓋を誤つて強く引張ると、外蓋の全
面剥離は生じないが、かえつてその分その強い剥
離力によつて包装袋本体が破れるおそれがある。
考案が解決しようとする問題点
本考案は、上記事情に鑑みなされたもので、外
蓋を何回開閉させても外蓋や包装袋本体を破るよ
うなことがなく、取出口を繰り返し確実に開閉す
ることができ、また外蓋の取り付けに熱接着法を
必要とせず、外蓋や包装袋本体の材質を考慮する
必要がなく、安価にかつ外蓋を体裁よく貼着する
ことができるウエツトテイツシユー等の包装袋を
提供することを目的とする。
問題点を解決するための手段
即ち、本考案は上記目的を達成するため、包装
袋本体の一面に内容品取出口を形成すると共に、
この取出口を覆つて裏面に接着剤層を形成したシ
ート状外蓋を剥離可能に接着してなる包装袋にお
いて、外蓋一端側の接着剤層を接着力400〜
3000g／cmの感圧性接着剤にて形成すると共に、
残りの接着剤層を接着力200〜800g／cmの感圧性
接着剤にて形成し、かつ前記外蓋一端側の接着剤
層の接着力を残りの接着剤層の接着力の２倍以上
に形成して、外蓋の他端より外蓋を包装袋本体よ
り剥離する際、外蓋一端側の強接着力を有する接
着剤層において外蓋の剥離が停止するようにした
ものである。
なお、本発明でいう接着力は、JIS Ｚ 0237
（1980）の粘着テープ・粘着シート試験方法の
180°剥離試験による値である。
作 用
本考案の包装袋は、包装袋本体の内容品取出口
に裏面全面に接着剤層を形成したシート状外蓋を
剥離及び再接着可能に設けるにあたり、上記外蓋
の一端側を他の部分より強力な接着剤によつて接
着することにより、外蓋を他端側から剥離する場
合に外蓋が該接着部分で停止するように構成し、
内蓋が切断して再封口が不可能になることを防止
したものである。
即ち、本考案においては、本質的には外蓋の一
端側を包装袋本体に完全に固着させず、基本的に
は外蓋全体を包装袋本体に剥離可能に設けたもの
で、実際本考案においては3000g／cm以上の剥離
力で剥離すれば、外蓋全体が包装袋本体から剥離
するものである。而して、本考案の包装袋はかか
る構成において、通常の剥離力においては外蓋の
一端側で外蓋の剥離を確実に停止させるべく、外
蓋一端側の接着剤層を接着力400〜3000g／cmの
感圧性接着剤にて形成すると共に、残りの接着剤
層を接着力200〜800g／cmの感圧性接着剤にて形
成し、かつ前記外蓋一端側の接着剤層の接着力を
残りの接着剤層の接着力の２倍以上に形成したも
のである。
従つて、本考案によれば、外蓋の接着剤層の一
端側が残りの接着剤層よりも接着力が強く形成さ
れているので、外蓋の他端部より外蓋を引張り、
外蓋を包装袋本体より剥離する場合、外蓋が他端
部から剥離されて前記強接着力の接着剤層に至る
と、この接着剤層の接着力が外蓋の剥離力、即
ち、前記残りの接着剤層の接着力よりも強いこと
により、確実に強接着力の接着剤層形成箇所にお
いて剥離が停止し、この状態において内容品を取
り出した後、再度外蓋の剥離部分を包装袋本体に
接着して取出口を閉塞し得ると共に、このような
外蓋の開閉をひんぱんに繰り返しても、従来の包
装袋のような切目の形成による外蓋一端部の固着
態様とは異なり、切目が形成されていないので外
蓋や包装袋本体が破れることがなく、使用性に優
れたものである。
この場合、外蓋一端側をより強力な接着力の接
着剤や熱接着などによつて実質的に剥離不可能に
強く固着した場合、誤つて外蓋を強く剥離する
と、上述したように外蓋一端側において外蓋が剥
離しない分、かえつてその強い剥離力によつて包
装袋本体に強い応力が与えられ、包装袋本体、特
にその取出口の一端側が破れるおそれがあるが、
本考案の包装袋においては、外蓋を誤つて強く剥
離した場合は、上述したように外蓋全体が剥離す
るだけで、包装袋本体が破れ難いものである。そ
して、このように外蓋全体が包装袋本体から剥離
しても、外蓋の接着剤層は感圧性接着剤により形
成されているので、再接着が可能で、再度外蓋を
包装袋本体に貼着することにより、繰り返し再使
用することができる。
しかも、本考案において、外蓋の接着剤層は感
圧性接着剤にて形成されているので、外蓋を単に
包装袋本体に貼り付けるだけでよく、熱接着の必
要もないため、外蓋の取り付けが容易であると共
に、包装袋本体や外蓋の貼着部に熱接着可能な樹
脂層等を形成する必要がなく、このためにコスト
的に有利な上、包装袋製袋時における包装袋本体
の端縁部の熱接着工程において、上記樹脂層の熱
収縮等による外観不良を引き起こすようなことも
ない。
以下、本考案の一実施例につき第１図乃至第３
図を参照して説明する。
実施例
図中１は包装袋本体であり、この包装袋本体１
は適宜なシート状包装材料の幅方向両端部を重ね
合わせて熱接着２ａすると共に、長さ方向両端部
内面をそれぞれ熱接着２ｂ，２ｂした密封の四角
平袋状に形成され、内部にウエツトテイツシユー
等の内容品３が収容されている。前記本体１の一
面中央部には舌状の内容品取出口４が形成されて
おり、この取出口４を覆つて長四角形状のプラス
チツクシートからなる外蓋５が設けられている。
この外蓋５の裏面には、その長さ方向一端側に強
接着力を有する感圧性接着剤層６が形成されてい
ると共に、残りの部分にはこれよりも弱い接着力
の感圧性接着剤層７が形成され、かつこの弱接着
力の接着剤層７のほぼ中央部には、前記取出口４
に相応した形状を有する保護シート８が接着さ
れ、外蓋５にはこの保護シート８が取出口４に対
応するように前記本体１の一面に剥離可能に接着
してある。
この場合、強接着力の接着剤層６は、ポリエス
テル系などの感圧性接着剤又はアクリル系もしく
はゴム系の感圧性接着剤にて形成され、また弱接
着力の接着剤層７は、アクリル系もしくはゴム系
の感圧性接着剤にて形成される。また、強接着力
の接着剤層６の接着力は400〜3000g／cm、特に
600〜3000g／cm、弱接着力の接着剤層７の接着
力は200〜800g／cm、特に200〜600g／cmとし、
かつ前者の接着力を後者の接着力の２倍以上とす
るものであり、これにより弱接着力の接着剤層７
の本体１に対する接着がなされ、かつ本体１から
の剥離が容易になされると共に、強接着力の接着
剤層６における剥離停止が確実になされる。
なお、強接着力の接着剤層６の厚さは20〜
200μ、特に30〜100μ、弱接着力の接着剤層７の
厚さは20〜80μ、特に30〜50μとすることができ
る。
また、包装袋本体１の形成に用いる材料は、特
に限定されるものではないが、ポリエステル、ナ
イロン等のプラスチツクフイルムの内面にアルミ
ニウム箔などの金属箔層を形成し、更にその内面
にポリエチレン、エチレン系共重合体、ポリプロ
ピレン等の熱接着性樹脂を積層した複合材料を用
いることができ、外蓋の形成にはポリエステル、
ナイロン等のプラスチツクフイルムを用いること
もできる。
この包装袋本体１内の内容品３を取り出す場合
は、外蓋５の長さ方向他端部に設けられた舌片９
を持つて長さ方向一端部方向に向けて引張るもの
で、これにより外蓋５の弱接着力の感圧性接着剤
層７が形成された他端部側から外蓋５が剥離さ
れ、取出口３が開口すると共に、外蓋５の剥離が
強接着力の感圧性接着剤層６形成箇所に至るとこ
の箇所の接着力が剥離力（弱接着力の接着剤層７
の接着力）よりも大きいので、剥離がこの強接着
力の接着剤層６形成箇所で確実に停止する。そし
て、この状態で内容品を取り出した後、外蓋５の
本体１から剥離した部分（弱接着力の接着剤層７
形成部分）を再び本体１に接着し、取出口３を閉
塞するものである。
この点につき、強接着力の接着剤層６の接着力
Ａと弱接着力の接着剤層７の接着力Ｂとを種々変
えた場合の外蓋の剥離状態の実験結果を示すと第
１表の通りである。
INDUSTRIAL APPLICATION FIELD The present invention relates to a packaging bag for wet tissues, etc., and more specifically to a packaging bag provided with an outer lid that can repeatedly open and close a content outlet formed in the packaging bag body. BACKGROUND ART Conventionally, packaging bags for wet tissues shown in FIGS. 4 and 5 are known. That is, this conventional packaging bag has a contents outlet c formed on one side of the packaging bag body b which packages the contents (wet tissue) a therein, and a sheet-like outer material that covers this outlet c. It is provided with a lid d. This outer lid d has a pressure-sensitive adhesive layer e formed on its back surface, and is releasably adhered to one surface of the packaging bag body b. In this case, the outer cover d has hook-shaped cuts f and f formed from both ends in the width direction on one end in the length direction, and a tongue piece g at the other end in the length direction of the outer cover d. By pulling the outer cover d toward one end in the length direction, the outer cover d is peeled off from the packaging bag body b, the outlet c is opened, and the outer cover d is further peeled off along the cuts f, f, Packaging bag body b
When the peeled part of the outer cover d reaches the tips f' and f' of the cuts f and f, which are located on the inside of both edges in the width direction,
The adhesive force of the lengthwise end part i of the outer cover d including the cuts f and the outer parts h of f is stronger than the force of peeling the outer cover d from the packaging bag body b, so the outer cover d
peeling is stopped, and the entire outer lid d is prevented from peeling off from the packaging bag body b. Contents a in this condition
After that, the outer cover d, which has been partially peeled off, is again adhered to the packaging bag body b, thereby closing the outlet c. However, in this conventional packaging bag, when the outer cover d is opened and closed, a strong tensile stress is applied to the tips f' and f' of the cuts f and f in the direction of one end in the length direction of the outer cover d. However, there is a risk that the tip portions f', f' may be torn. In addition, some of the packaging bags shown in FIGS. 4 and 5 above have one end i in the length direction of the outer lid d fixed by thermal adhesive without providing the cuts f and f. Naturally, it is necessary to form a heat-bondable resin layer on the relevant part of the packaging bag body b.In this case, it is generally difficult to form a heat-bond layer partially, so the entire outer surface is heated. Since it is covered with an adhesive layer, it may cause poor appearance when the body shrinks due to heat in the process of thermally bonding the edge of the packaging bag during bag manufacturing. This will also lead to higher product prices. Moreover, the outer cover d must also be made of a material that can be thermally bonded, and materials that are difficult to thermally bond such as strong polyester or nylon cannot be used. It becomes necessary to provide an extra layer. Furthermore, if one end of the outer cover in the length direction is firmly fixed using heat bonding or a strong adhesive, the entire outer cover will not peel off if the outer cover is pulled strongly by mistake. However, the packaging bag itself may be torn due to the stronger peeling force. Problems to be Solved by the Invention The present invention was developed in view of the above circumstances.No matter how many times the outer cover is opened and closed, the outer cover or the packaging bag itself will not be damaged, and the outlet can be reliably opened repeatedly. It is a wafer that can be opened and closed, does not require thermal adhesion to attach the outer lid, does not require consideration of the material of the outer lid or the packaging bag itself, and can be used to attach the outer lid in an attractive manner at low cost. The purpose of this company is to provide packaging bags for items such as ``Tutoteitshu''. Means for solving the problems That is, in order to achieve the above object, the present invention forms a content outlet on one side of the packaging bag body, and
In a packaging bag formed by removably adhering a sheet-like outer lid with an adhesive layer formed on the back side covering this outlet, the adhesive layer on one end of the outer lid has an adhesive strength of 400~
Formed with 3000g/cm pressure sensitive adhesive,
The remaining adhesive layer is formed of a pressure-sensitive adhesive with an adhesive strength of 200 to 800 g/cm, and the adhesive strength of the adhesive layer on one end of the outer lid is at least twice the adhesive strength of the remaining adhesive layer. When the outer lid is peeled off from the packaging bag body from the other end of the outer lid, the peeling of the outer lid is stopped at the adhesive layer having strong adhesive strength at one end of the outer lid. In addition, the adhesive force referred to in the present invention is based on JIS Z 0237.
(1980) of adhesive tape and adhesive sheet testing methods.
This value is based on a 180° peel test. Function In the packaging bag of the present invention, a sheet-like outer lid with an adhesive layer formed on the entire back surface is provided at the content outlet of the packaging bag body so that it can be peeled off and re-adhered. By adhering the outer cover with a stronger adhesive than the other end, the outer cover is configured to stop at the bonded part when the outer cover is peeled off from the other end side,
This prevents the inner lid from breaking and making resealing impossible. That is, in the present invention, essentially, one end side of the outer lid is not completely fixed to the packaging bag body, and basically the entire outer lid is provided in a removable manner to the packaging bag body. In this case, if the bag is peeled off with a peeling force of 3000 g/cm or more, the entire outer lid will peel off from the packaging bag body. With this configuration, the packaging bag of the present invention has an adhesive layer on one end of the outer lid with an adhesive force of 400 to 400 to ensure that peeling of the outer lid stops at one end of the outer lid under normal peeling force. The adhesive layer is formed with a pressure-sensitive adhesive having an adhesive strength of 3000 g/cm, and the remaining adhesive layer is formed with a pressure-sensitive adhesive having an adhesive strength of 200 to 800 g/cm, and the adhesive strength of the adhesive layer on one end side of the outer lid is The adhesive strength of the remaining adhesive layer is at least twice that of the remaining adhesive layer. Therefore, according to the present invention, since one end side of the adhesive layer of the outer lid is formed to have a stronger adhesive force than the remaining adhesive layer, the outer lid is pulled more than the other end of the outer lid.
When the outer lid is peeled off from the packaging bag body, when the outer lid is peeled off from the other end and reaches the adhesive layer with the strong adhesive force, the adhesive force of this adhesive layer is the peeling force of the outer lid, i.e., the adhesive layer with the strong adhesive force. Since the adhesive strength is stronger than that of the remaining adhesive layer, peeling will surely stop at the location where the strong adhesive layer is formed, and in this state, after removing the contents, place the peeled part of the outer lid back into the packaging bag. It can be glued to the main body to close the outlet, and even if such an outer cover is opened and closed frequently, unlike conventional packaging bags where one end of the outer cover is fixed by forming a cut, the cut Since there are no cracks formed, the outer lid and the packaging bag body will not be torn, making it easy to use. In this case, if one end of the outer cover is firmly fixed with a stronger adhesive or heat bonding so that it is virtually impossible to remove, and if the outer cover is peeled off strongly by mistake, the outer cover may be damaged as described above. Since the outer lid does not peel off at one end, the strong peeling force applies strong stress to the packaging bag body, and there is a risk that the packaging bag body, especially the one end side of the outlet, may be torn.
In the packaging bag of the present invention, if the outer lid is accidentally peeled off strongly, only the entire outer lid will be peeled off as described above, and the packaging bag itself will not be easily torn. Even if the entire outer lid is separated from the packaging bag body in this way, the adhesive layer on the outer lid is made of pressure-sensitive adhesive, so it can be reattached and the outer lid can be reattached to the packaging bag body. By pasting it on, it can be reused repeatedly. Moreover, in the present invention, the adhesive layer of the outer lid is made of pressure-sensitive adhesive, so it is sufficient to simply attach the outer lid to the packaging bag body, and there is no need for thermal bonding. In addition to being easy to attach, there is no need to form a heat-bondable resin layer on the packaging bag body or the attachment part of the outer lid, which is advantageous in terms of cost, and the packaging bag can be easily used when making packaging bags. In the process of thermally bonding the edge portions of the main body, there is no possibility of causing poor appearance due to thermal shrinkage of the resin layer. Below, Figures 1 to 3 will be explained for one embodiment of the present invention.
This will be explained with reference to the figures. Example 1 in the figure is a packaging bag body, and this packaging bag body 1
is formed into a sealed rectangular flat bag by overlapping the widthwise ends of appropriate sheet-like packaging materials and thermally bonding them 2a, and by thermally bonding the inner surfaces of both lengthwise ends 2b, 2b, respectively. Contents 3 such as items are stored. A tongue-shaped contents outlet 4 is formed in the center of one side of the main body 1, and an outer lid 5 made of a rectangular plastic sheet is provided to cover the outlet 4.
On the back surface of the outer lid 5, a pressure-sensitive adhesive layer 6 with strong adhesive strength is formed on one end in the length direction, and a pressure-sensitive adhesive layer 6 with a weaker adhesive strength is formed on the remaining part. layer 7 is formed, and the outlet 4 is located approximately in the center of this weak adhesive layer 7.
A protective sheet 8 having a shape corresponding to the above is adhered to the outer lid 5, and this protective sheet 8 is releasably adhered to one surface of the main body 1 so as to correspond to the outlet 4. In this case, the adhesive layer 6 with strong adhesive force is formed of a pressure-sensitive adhesive such as polyester, or an acrylic or rubber-based pressure sensitive adhesive, and the adhesive layer 7 with weak adhesive force is formed with an acrylic-based pressure sensitive adhesive. Alternatively, it is formed using a rubber-based pressure-sensitive adhesive. In addition, the adhesive force of the strong adhesive layer 6 is 400 to 3000 g/cm, especially
600 to 3000 g/cm, the adhesive force of the weak adhesive layer 7 is 200 to 800 g/cm, especially 200 to 600 g/cm,
And the adhesive force of the former is more than twice that of the latter, so that the adhesive layer 7 with weak adhesive strength
is adhered to the main body 1, and is easily peeled from the main body 1, and the peeling is reliably stopped by the adhesive layer 6 having a strong adhesive force. In addition, the thickness of the adhesive layer 6 with strong adhesive strength is 20~
200μ, especially 30-100μ, the thickness of the weak adhesive layer 7 can be 20-80μ, especially 30-50μ. The material used to form the packaging bag body 1 is not particularly limited, but a metal foil layer such as aluminum foil is formed on the inner surface of a plastic film such as polyester or nylon, and furthermore, a metal foil layer such as aluminum foil is formed on the inner surface of the plastic film such as polyester or nylon. Composite materials laminated with thermoadhesive resins such as copolymers and polypropylene can be used, and the outer lid can be formed using polyester,
Plastic films such as nylon can also be used. When taking out the contents 3 inside the packaging bag main body 1, a tongue piece 9 provided at the other end in the length direction of the outer lid 5 is used.
With this, the outer cover 5 is peeled off from the other end side where the weakly adhesive pressure-sensitive adhesive layer 7 of the outer cover 5 is formed, and the outlet is opened. 3 is opened, and when the outer cover 5 is peeled off to the location where the pressure-sensitive adhesive layer 6 with strong adhesive force is formed, the adhesive force at this location becomes the peeling force (the adhesive layer 7 with weak adhesive force).
(adhesive force), so peeling is reliably stopped at the location where the adhesive layer 6 with this strong adhesive force is formed. After taking out the contents in this state, the portion of the outer lid 5 that has peeled off from the main body 1 (the weakly adhesive layer 7
(formed portion) is adhered to the main body 1 again, and the outlet 3 is closed. Regarding this point, Table 1 shows the experimental results of the peeling state of the outer cover when the adhesive force A of the adhesive layer 6 with strong adhesive force and the adhesive force B of the adhesive layer 7 with weak adhesive force were variously changed. It is as follows.
【表】
×：外蓋を剥離した時、外蓋全体が剥離す
る。
○：外蓋を剥離した時、強接着力の接着剤
層の所で停止する。
ここで、本考案の包装袋において、誤つて外蓋
５を強く引張つた場合、外蓋５全体が包装袋本体
１から剥離し、包装袋本体１が破れることがな
い。この場合、外蓋５全体が剥離しても再度包装
袋本体１に貼着することにより、上記と同じよう
に使用することができる。
なお、本考案において、包装袋本体１、その取
出口４、外蓋５の形状は上記実施例に制限される
ものではない。なおまた、上記実施例は外蓋の長
さ方向一端側に強接着力の接着剤層を形成し長さ
方向他端側から外蓋を剥離するようにしたが、外
蓋の幅方向一端側に強接着力の接着剤層を形成
し、幅方向他端側から剥離するようにしてもよ
く、その他の構成についても本考案の要旨の範囲
内で種々変更して差支えない。
考案の効果
本考案によれば、外蓋一端側の接着剤層を接着
力400〜3000g／cmの感圧性接着剤にて形成する
と共に、残りの接着剤層を接着力200〜800g／cm
の感圧性接着剤にて形成し、かつ前記外蓋一端側
の接着剤層の接着力を残りの接着剤層の接着力の
２倍以上に形成したことにより、通常の剥離力で
は外蓋一端側で確実に外蓋の引き剥がしが停止す
る一方、誤つて外蓋を強く剥離した場合は外蓋全
体が包装袋本体から剥離して包装袋本体の破れが
防止され、外蓋や包装袋本体を破ることがなく、
繰り返し良好に開閉操作を行うことができる。
また、外蓋は感圧性接着剤を用いているため単
に貼着するだけで包装袋本体に取り付けることが
でき、熱接着の必要もなく、外蓋の取り付けが容
易であると共に、包装袋本体や外蓋の貼着部に熱
接着可能な樹脂層を形成する必要がなく、従つて
その材料も制限されず、安価に製造することがで
きると共に、貼着が熱収縮等の外観不良を生じさ
せることなく、体裁よく行なわれる。[Table] ×: When the outer cover is peeled off, the entire outer cover is peeled off.
○: When the outer cover is peeled off, it stops at the adhesive layer with strong adhesive force.
Here, in the packaging bag of the present invention, if the outer lid 5 is accidentally pulled strongly, the entire outer lid 5 will be peeled off from the packaging bag body 1, and the packaging bag body 1 will not be torn. In this case, even if the entire outer lid 5 is peeled off, it can be used in the same manner as described above by attaching it to the packaging bag body 1 again. In addition, in the present invention, the shapes of the packaging bag body 1, its outlet 4, and the outer lid 5 are not limited to the above embodiments. Furthermore, in the above embodiment, a strong adhesive layer is formed on one end in the length direction of the outer cover, and the outer cover is peeled off from the other end in the length direction. An adhesive layer with a strong adhesive force may be formed on the surface and peeled off from the other end in the width direction, and other configurations may be variously modified within the scope of the gist of the present invention. Effects of the invention According to the invention, the adhesive layer on one end of the outer lid is formed with a pressure-sensitive adhesive with an adhesive force of 400 to 3000 g/cm, and the remaining adhesive layer is formed with an adhesive force of 200 to 800 g/cm.
, and the adhesive force of the adhesive layer on one end of the outer lid is more than twice that of the remaining adhesive layer, so that one end of the outer lid cannot be removed with normal peeling force. On the other hand, if the outer cover is peeled off forcefully by mistake, the entire outer cover will be peeled off from the packaging bag body, preventing the packaging bag body from tearing. without breaking the
Opening and closing operations can be performed repeatedly and successfully. In addition, since the outer lid uses a pressure-sensitive adhesive, it can be attached to the packaging bag body simply by pasting it.There is no need for heat adhesion, making it easy to attach the outer lid, and the outer lid can also be attached to the packaging bag body by simply pasting it. There is no need to form a heat-adhesive resin layer on the adhesive part of the outer lid, and therefore there are no restrictions on the material used, and it can be manufactured at low cost, and the adhesive does not cause external defects such as heat shrinkage. It is done in a good manner without any fuss.
第１図は本考案の一実施例を示す平面図、第２
図は第１図−線に沿つた断面図、第３図は第
１図−線に沿つた断面図、第４図は従来例の
平面図、第５図は第４図−線に沿つた断面図
である。
１……包装袋本体、３……内容品、４……内容
品取出口、５……外蓋、６……強接着力の接着剤
層、７……弱接着力の接着剤層。
Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a cross-sectional view taken along the line of Figure 1, Figure 3 is a cross-sectional view taken along the line of Figure 1, Figure 4 is a plan view of the conventional example, and Figure 5 is a cross-sectional view taken along the line of Figure 4. FIG. 1... Packaging bag body, 3... Contents, 4... Contents outlet, 5... Outer lid, 6... Adhesive layer with strong adhesive force, 7... Adhesive layer with weak adhesive force.
Claims (1)
共に、この取出口を覆つて裏面に接着剤層を形成
したシート状外蓋を剥離可能に接着してなる包装
袋において、外蓋一端側の接着剤層を接着力400
〜3000g／cmの感圧性接着剤にて形成すると共
に、残りの接着剤層を接着力200〜800g／cmの感
圧性接着剤にて形成し、かつ前記外蓋一端側の接
着剤層の接着力を残りの接着剤層の接着力の２倍
以上に形成して、外蓋の他端より外蓋を包装袋本
体より剥離する際、外蓋一端側の強接着力を有す
る接着剤層において外蓋の剥離が停止するように
したことを特徴とする包装袋。 In a packaging bag formed by forming a content outlet on one side of the packaging bag body and releasably adhering a sheet-like outer lid with an adhesive layer formed on the back surface covering the outlet, one end of the outer lid Adhesive force of adhesive layer 400
-3000g/cm of pressure-sensitive adhesive, the remaining adhesive layer is formed of a pressure-sensitive adhesive of 200-800g/cm, and the adhesive layer on one end of the outer lid is bonded. When peeling the outer lid from the packaging bag body from the other end of the outer lid by applying a force more than twice the adhesive strength of the remaining adhesive layer, the adhesive layer with strong adhesive strength on one end of the outer lid A packaging bag characterized in that peeling of the outer lid is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984172021U JPH0348068Y2 (en) | 1984-11-13 | 1984-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984172021U JPH0348068Y2 (en) | 1984-11-13 | 1984-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6186274U JPS6186274U (en) | 1986-06-06 |
| JPH0348068Y2 true JPH0348068Y2 (en) | 1991-10-14 |
Family
ID=30729694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984172021U Expired JPH0348068Y2 (en) | 1984-11-13 | 1984-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348068Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63110180A (en) * | 1986-10-28 | 1988-05-14 | 藤森工業株式会社 | Resealable packaging bag |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6233742Y2 (en) * | 1981-06-16 | 1987-08-28 |
-
1984
- 1984-11-13 JP JP1984172021U patent/JPH0348068Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6186274U (en) | 1986-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6461708B1 (en) | Resealable container and closure seal | |
| US4801480A (en) | Composite prelaminated tape system | |
| US6113271A (en) | Resealable label flap including label stop | |
| EP1780145B1 (en) | Easy-open encasement | |
| US3330436A (en) | Seam release container | |
| US9428305B2 (en) | Envelope seal strip | |
| US4726971A (en) | Composite prelaminated tapes for diaper closures | |
| CA1297053C (en) | Adhesive tape closure | |
| JPH0348068Y2 (en) | ||
| JP4169588B2 (en) | Reseal label | |
| JP4711501B2 (en) | Lid | |
| JPH039025B2 (en) | ||
| JPH037346Y2 (en) | ||
| JP3509940B2 (en) | Resealable tape-sealed bag | |
| JP3876198B2 (en) | Absorbent articles | |
| JP3020486B1 (en) | Sticky envelope for luggage and method of manufacturing the same | |
| JPS6128778Y2 (en) | ||
| JP2602403Y2 (en) | Package | |
| JPH0517109B2 (en) | ||
| JPH0539073Y2 (en) | ||
| JPH0129109Y2 (en) | ||
| KR102089050B1 (en) | An inspection structure of unopened situation for an opening part of a bag | |
| JP2000313449A (en) | Easy-to-seal/open envelope | |
| JPS6238907Y2 (en) | ||
| JPS5929874Y2 (en) | Easy-open can lid |