JP2905978B2 - Manufacturing method of plastic envelope - Google Patents
Manufacturing method of plastic envelopeInfo
- Publication number
- JP2905978B2 JP2905978B2 JP1207131A JP20713189A JP2905978B2 JP 2905978 B2 JP2905978 B2 JP 2905978B2 JP 1207131 A JP1207131 A JP 1207131A JP 20713189 A JP20713189 A JP 20713189A JP 2905978 B2 JP2905978 B2 JP 2905978B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- sealing piece
- envelope
- film band
- manufacturing
- 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 - Fee Related
Links
Landscapes
- Making Paper Articles (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、プラスチックフイルム製封筒に関するもの
であり、さらに詳しくは、自動封緘の可能なプラスチッ
クフイルム製封筒に関するものである。Description: TECHNICAL FIELD The present invention relates to a plastic film envelope, and more particularly, to a plastic film envelope capable of automatic sealing.
［従来の技術］ 従来より、プラスチックフイルム製封筒は知られてお
り、第５図に示すような構造のものであった。[Prior Art] Conventionally, an envelope made of plastic film has been known and has a structure as shown in FIG.
しかし、この封筒には折り癖がないため、自動封緘処
理することができなかった。However, since this envelope did not have a habit, it could not be automatically sealed.
すなわち、該封筒を一枚づつ取り出しこれに書類を収
納するまでは自動的に機械に行わせることはできるが、
封口片を正確に折り曲げることが機械的で行うのは困難
である。In other words, it is possible to have the machine automatically take out the envelopes one by one until the documents are stored therein,
It is difficult to precisely bend the sealing piece mechanically.
このため、書類を入れた封筒の封口作業は手作業によ
り封口していた。For this reason, the work of closing the envelope containing the documents has been manually closed.
現在、ダイレクトメールなどで封書を出す場合、宛名
はコンピュータからの出力で自動的に封筒又はタイプで
きる。また、窓あき封筒を用いれば文書にタイプした宛
名を外から見えるようにできる。その結果、ダイレクト
メールなどでは、封緘作業が最大の手間のかかる作業と
なっている。At present, when an envelope is sent by direct mail or the like, the address can be automatically enveloped or typed by output from a computer. The use of a windowed envelope makes it possible to see the address typed in the document from the outside. As a result, in direct mail and the like, the sealing operation is the most troublesome operation.
［発明が解決しようとする課題］ 本発明は、封緘を自動的にできるプラスチックフイル
ム製封筒及びその製造方法を提供することを目的とする
ものである。[Problems to be Solved by the Invention] An object of the present invention is to provide a plastic film envelope that can be automatically sealed and a method for manufacturing the same.
［課題を解決するための手段］ 本発明者は、自動的に封緘するためには、封口片にあ
らかじめ折り癖を付けておけば、機械的に封緘すること
ができることに着目して、プラスチックフイルム製封筒
を一枚ずつ機械的に取り出し、封口片だけを折り曲げ、
熱をかけて折り癖を付ける方法を試みた。[Means for Solving the Problems] The present inventor has focused on the fact that a sealing film can be mechanically sealed by previously forming a folding habit in order to automatically seal the film. Mechanically take out the envelopes one by one, bend only the sealing piece,
I tried to make a fold by applying heat.
しかし、この方法では操作が困難の上、折り曲げ線が
正確に付かない欠点があった。折り曲げ線が僅かに傾斜
しても、封緘した封筒としては肉眼で歪みが目立ち、非
常に体裁の悪いものになり使用することができない。However, this method has drawbacks that the operation is difficult and the bending line is not accurately formed. Even if the fold line is slightly inclined, the sealed envelope is noticeably distorted by the naked eye, is very poor in appearance, and cannot be used.
そこで、封筒の連続製造工程の中で折り癖を正確に付
ける方法で、しかも、封筒として切り離される前の長尺
のフイルム帯の状態で、直線的に固定しやすくしかも折
り曲げるべきフイルム部分の前後で保持できる状態で折
り癖を付ければ、正確かつ容易に折り癖が付くことに想
到して本発明を完成した。Therefore, in the continuous manufacturing process of envelopes, it is a method to accurately set the folding habit, and in the state of a long film band before it is cut off as an envelope, it is easy to fix it linearly and it is also possible to use it around the film part to be folded The present invention has been completed in view of the fact that if the folding habit is formed in a state where it can be held, the folding can be accurately and easily formed.
すなわち、本発明は次の各項の発明よりなる。 That is, the present invention includes the following items.
１ 粗面化処理をした長尺のフイルム帯を連続的に繰り
出しながら封口片部分を表フイルム部分から突出させて
重合したフイルム帯の断面構造にした後、封口部分に接
着剤を塗布して、ついで、フイルム帯の供給を間欠連続
的供給に転換して、第一作業台に送り込み、第一の作業
台ではフイルム帯の静止時期に同調して封筒の幅毎に封
口片部分を先端が短い短辺である台形状であって、該短
辺が封口片の折り曲げ線と裏フイルムの上縁の間に位置
する台形状で切り取って、これに続く第二の作業台で
は、同じくフイルム帯の静止しているときに同調して封
口片を折り返して折り癖を付け、これに続く第三の作業
台の上で同じくフイルム帯の静止時期に同調して該切り
取り部分の先端台形のところから封筒の幅毎に融断する
ことを特徴とするプラスチック製封筒の製造方法。(1) The sealing piece is projected from the front film portion to form a cross-sectional structure of the polymerized film band while continuously feeding out the long film band subjected to the surface roughening treatment, and then an adhesive is applied to the sealing portion. Next, the supply of the film band is switched to intermittent continuous supply and sent to the first workbench, where the first workbench synchronizes with the stationary time of the film band and shortens the end of the sealing piece for each envelope width. It is a trapezoidal shape that is a short side, and the short side is cut out in a trapezoidal shape located between the folding line of the sealing piece and the upper edge of the back film, and in the subsequent second working table, the film band is also When the stationary portion is stationary, the sealing piece is folded back to form a folding habit, and on the third work bench following this, the envelope is also synchronized with the stationary time of the film band from the tip trapezoidal portion of the cutout portion. Plastic that is cut every width How to make sticky envelopes.
２ 接着剤が感熱接着剤である項１記載のプラスチック
製封筒の製造方法。Item 2. The method for producing a plastic envelope according to Item 1, wherein the adhesive is a heat-sensitive adhesive.
３ 加熱折り曲げパネルの圧着により折り癖を付ける項
１又は２記載のプラスチック製封筒の製造方法。[3] The method for producing a plastic envelope according to [1] or [2], wherein a folding habit is formed by press-fitting the heat-bending panel.
本発明製造方法を図面により、さらに詳細に説明す
る。The manufacturing method of the present invention will be described in more detail with reference to the drawings.
まず、インフレーション加工により製造された筒型の
フイルム原反の表フイルム部分及び裏フイルム部分に相
当する位置に印刷方式により、いわゆる無機粉末を含有
したマットインキを塗布した長尺の粗面化原反を製造す
る。First, a long roughened raw material coated with a so-called inorganic powder-containing mat ink by a printing method at positions corresponding to the front film portion and the back film portion of a cylindrical film raw material manufactured by inflation processing. To manufacture.
この粗面化処理は、筆記性を付与するとともにフイル
ムを不透明にする効果がある。This roughening treatment has the effect of imparting writability and making the film opaque.
封筒を窓あき封筒にするときは、窓部分には粗面化処
理は行わない。When the envelope is a windowed envelope, the window is not roughened.
粗面化の方法はマットインキに限らず、コロナ放電処
理、合成紙の使用又は公知の筆記性付与方式を使用する
ことができる。The method of surface roughening is not limited to matte ink, but may be corona discharge treatment, use of synthetic paper, or a known method of imparting writability.
次にこれを連続的に繰り出しながら裏フイルム２の先
端縁に相当する位置に刃先を入れて切り開き封口片３相
当部分を延ばして第１図の断面構造のフイルム帯にす
る。ついで封口片３相当部分の先端に接着剤層４を塗布
する。Next, while continuously feeding the film, a cutting edge is inserted into a position corresponding to the leading edge of the back film 2 and cut open to extend a portion corresponding to the sealing piece 3 to form a film band having a sectional structure shown in FIG. Next, an adhesive layer 4 is applied to the tip of the portion corresponding to the sealing piece 3.
この接着剤は感熱接着剤又は感圧接着剤など使用でき
るが、感熱接着剤を使用する方が自動封口操作が容易に
なるので望ましい。This adhesive can be used as a heat-sensitive adhesive or a pressure-sensitive adhesive, but it is preferable to use a heat-sensitive adhesive since the automatic closing operation becomes easier.
本発明製造方法に感圧接着剤も使用できるが、この場
合剥離紙に塗布したものを封口片に張り付けることにな
り、封緘の際に剥離紙を剥がす工程が増えるばかりでな
く、正しい位置に封緘する前に封口片が曲がって接着し
たりするので操作が困難である。感熱接着剤の場合は封
口の位置を決めてから加熱して初めて接着機能が発現す
るので位置決めの前に接着することはない。Although a pressure-sensitive adhesive can also be used in the production method of the present invention, in this case, what has been applied to the release paper will be stuck to the sealing piece, and not only will the step of peeling off the release paper at the time of sealing increase, but also in the correct position The operation is difficult because the sealing piece bends and adheres before sealing. In the case of a heat-sensitive adhesive, the bonding function is developed only after the position of the seal is determined and then heated, so that the bonding is not performed before positioning.
本発明に用いる感熱接着剤としては、EVA、ポリアミ
ド、塩ビ−酢ビ共重合体、ブチラールなどを使用するこ
とができる。As the heat-sensitive adhesive used in the present invention, EVA, polyamide, vinyl chloride-vinyl acetate copolymer, butyral, and the like can be used.
ついで、第１図の断面構造の長尺のフイルムの供給方
式を常法により連続間欠式に切り換えて第２図に示す第
一作業台区域21の上に供給する。第一作業台の上で封口
片部分を打ち抜き台形部分22を切り取る。この打ち抜き
台形部分22は、先端が台形の短辺23を有しており、この
台形の短辺23の長さは１〜8mm、好ましくは、３〜5mm程
度が望ましい。そしてこの台形の短辺23の位置は、後の
工程の折り曲げ線24とほぼ同一線上又はこの線より下
で、裏フィルム２の先端より上に位置する必要がある。Next, the long film having a sectional structure shown in FIG. 1 is switched to a continuous intermittent method by a conventional method and supplied to the first work area 21 shown in FIG. The sealing piece is punched out on the first workbench and the trapezoidal portion 22 is cut out. The punched trapezoidal portion 22 has a trapezoidal short side 23 at the tip, and the length of the short side 23 of the trapezoid is desirably 1 to 8 mm, preferably about 3 to 5 mm. The position of the short side 23 of the trapezoid should be located substantially on the same line as or below the folding line 24 in the later step and above the front end of the back film 2.
折り曲げ線24より上に台形の短辺23を位置させるとこ
の台形の短辺23が袋体部の裏フイルム２の上に重なり、
後述の第三作業台での融着工程で、この部分が袋体部フ
イルムに融着することになり不都合である。When the short side 23 of the trapezoid is positioned above the folding line 24, the short side 23 of the trapezoid overlaps the back film 2 of the bag body,
This part is inconveniently fused to the bag body film in a fusion step at a third workbench described later.
この切り取り工程は、刃型による打ち抜きも使用でき
るが、熱により切り取る方法も好適に用いることができ
る。In this cutting step, punching with a blade die can be used, but a method of cutting with heat can also be suitably used.
次にフイルム帯は第二作業台区域25に第一作業台と同
周期の間欠連続的に供給されて、その静止時期に同期し
て、第一工程で形成された封口片のその前後のＡ、Ｂの
位置並びに場合によっては袋体部分Ｃの位置を押さえな
がら封口片３の折り曲げ線の下のパネルが持ち揚がり封
口片３を折り曲げる。この折り曲げは60〜180度程度の
折り癖が付く程度に行い、この際にフイルムの融点に近
い温度の折り曲げパネルによって圧着して折り癖を付け
る。フイルムの材質によっては温度を上げないで単に強
い力で圧縮したりして行うこともできる。折り曲げる位
置は裏フイルム２の先端より0.5〜5mm程度、好ましくは
１〜3mm離れた平行線上を折り曲げるのが望ましい。こ
の距離が0.5mm未満になると、自動封緘で書類を自動的
に収納するのが困難になる。また5mm以上離れると封筒
の角が空きすぎ体裁が悪くなる。Next, the film band is supplied intermittently and continuously to the second worktable area 25 in the same cycle as the first worktable, and in synchronism with the stationary time, the A before and after the sealing piece formed in the first process is changed. , B and possibly the position of the bag body portion C, the panel below the folding line of the sealing piece 3 is lifted and the sealing piece 3 is bent. This bending is performed so that a bending habit of about 60 to 180 degrees is formed, and at this time, the film is crimped by a bending panel having a temperature close to the melting point of the film. Depending on the material of the film, it is also possible to compress the film with a strong force without raising the temperature. It is desirable to bend the position on a parallel line about 0.5 to 5 mm, preferably 1 to 3 mm away from the tip of the back film 2. If the distance is less than 0.5 mm, it will be difficult to automatically store documents by automatic sealing. Also, if the distance is more than 5 mm, the corners of the envelope are too empty and the appearance is poor.
折り曲げ工程は、第二作業台区域に袋体が停止したと
きにほぼ袋体の幅だけの長さの移動パネルが素早く上に
回転して封口片を裏フイルム２の上縁に重合させる。こ
のとき、折り曲げ線上で加熱されているパネルを押し当
てられて折り癖が付く。In the folding step, when the bag is stopped in the second work area, the moving panel having a length substantially equal to the width of the bag is quickly rotated upward so that the sealing piece overlaps the upper edge of the back film 2. At this time, the heated panel is pressed on the folding line, and the panel is bent.
本発明の製造方法はこの折り曲げ方法に限定されるも
のでなく、連続製袋工程においてプラスチックフイルム
の先端を折り曲げ、折り癖をつけることのできる方法で
あれば特に制限なく使用することができる。The production method of the present invention is not limited to this folding method, and any method can be used without particular limitation as long as the method can bend the tip of the plastic film in the continuous bag making process to impart a folding habit.
次に、第二作業台から出たフイルム帯は第三作業台区
域27に間欠連続に供給され、その静止時期に同調して封
筒の融断線28を常法により熱刃で融断して、切り離しな
がら側縁を融着して封筒を完成することができる。Next, the film band emerging from the second workbench is intermittently supplied to the third workbench area 27, and tuned to the stationary time to fuse the fusing line 28 of the envelope with a hot blade in a conventional manner, The envelope can be completed by fusing the side edges while separating.
この第三作業台での融断において、前記台形の短辺23
の範囲内を横切って融断する必要がある。この範囲を外
れると封口片３が袋体の裏フイルム２の上にかかり、封
口片３と裏フイルム２が融着する不都合が生じる。In the fusion at the third work table, the short side 23 of the trapezoid
Must be melted across the range. If the thickness is outside this range, the sealing piece 3 will fall on the back film 2 of the bag, and the sealing piece 3 and the back film 2 will be fused.
本発明は第一作業工程での台形部分の切り取りに特徴
があり、この切り取りをこの順序で行いしかもこの台形
の短辺23の幅によって、円滑な連続製造を達成するもの
である。The present invention is characterized in that the trapezoidal portion is cut out in the first operation step, and the cutout is performed in this order, and smooth continuous production is achieved by the width of the short side 23 of the trapezoid.
このようにして、粗面化処理をした表フイルム及び裏
フイルムからなる袋体部に表フイルムから延設された封
口片があり、該封口片の先端縁には接着剤が塗布されて
おり、該封口片と表フイルムの境界線には折り癖が付け
られており、その折り曲げ線上の封口片の幅は左右とも
封筒の幅より短いことを特徴とするプラスチックフイル
ム製封筒である本発明封筒（第３図、第４図）を得るこ
とができる。In this way, there is a sealing piece extended from the front film in the bag body portion made of the front film and the back film that has been subjected to the surface roughening treatment, and an adhesive is applied to a leading edge of the sealing piece, The boundary between the sealing piece and the front film is creased, and the width of the sealing piece on the folding line is shorter than the width of the envelope on both the left and right sides. 3 and 4) can be obtained.
［発明の効果］ 本発明製造方法は、封口に便利な折り癖のついた封
筒、特に自動封緘可能な封筒を連続式工程で正確にかつ
簡単に製造することを達成したものであり、この封筒に
より、ダイレクトメールによる宣伝活動が容易になる利
点がある。[Effects of the Invention] The production method of the present invention achieves accurate and simple production of an envelope with a folding habit that is convenient for closing, especially an envelope that can be automatically sealed in a continuous process. Thereby, there is an advantage that the advertising activity by direct mail becomes easy.
第１図は本発明製造方法に用いる長尺のフイルムの断面
構造の一例を示す図であり、第２図は本発明製造方法の
実施例を説明する工程図であり、第３図は本発明封筒の
一例の平面図であり、第４図はその断面図であり、第５
図は従来の封筒の平面図である。 図中の符号は、1;表フイルム、2;裏フイルム、3;封口
片、4;接着剤層、21;第一作業台区域、22;打ち抜き台形
部分、23;台形の短辺、24;折り曲げ線、25;第二作業台
区域、27;第三作業台区域、28;融断線である。FIG. 1 is a view showing an example of a cross-sectional structure of a long film used in the manufacturing method of the present invention, FIG. 2 is a process chart for explaining an embodiment of the manufacturing method of the present invention, and FIG. FIG. 4 is a plan view of an example of an envelope, FIG.
The figure is a plan view of a conventional envelope. 1; front film, 2; back film, 3; sealing piece, 4; adhesive layer, 21; first work area, 22; stamped trapezoidal portion, 23; short side of trapezoid, 24; Fold line, 25; second work area, 27; third work area, 28; fusing line.
Claims (3)
的に繰り出しながら封口片部分を表フイルム部分から突
出させて重合したフイルム帯の断面構造にした後、封口
部分に接着剤を塗布して、ついで、フイルム帯の供給を
間欠連続的供給に転換して、第一作業台に送り込み、第
一の作業台ではフイルム帯の静止時期に同調して封筒の
幅毎に封口片部分を先端が短い短辺である台形状であっ
て、該短辺が封口片の折り曲げ線と裏フイルムの上縁の
間に位置する台形状で切り取って、これに続く第二の作
業台では、同じくフイルム帯の静止しているときに同調
して封口片を折り返して折り癖を付け、これに続く第三
の作業台の上で同じくフイルム帯の静止時期に同調して
該切り取り部分の先端台形のところから封筒の幅毎に融
断することを特徴とするプラスチック製封筒の製造方
法。1. A long film band having been subjected to a surface roughening treatment is continuously fed, and a sealing piece is projected from a front film portion to form a cross-sectional structure of a polymerized film band. After applying the film, the supply of the film band is changed to an intermittent continuous supply and sent to the first workbench. Is cut into a trapezoidal shape whose tip is a short short side, and the short side is cut out in a trapezoidal shape located between the folding line of the sealing piece and the upper edge of the back film, and in the subsequent second work table, Similarly, when the film band is stationary, the sealing piece is folded back to form a folding habit, and then on the third workbench following the same, at the same time as the film band is stationary, the tip trapezoid of the cut-out portion is formed. It is characterized by fusing every width of the envelope from the place Method of manufacturing a plastic envelope that.
プラスチック製封筒の製造方法。2. The method according to claim 1, wherein the adhesive is a heat-sensitive adhesive.
付ける請求項１又は２記載のプラスチック製封筒の製造
方法。3. The method for manufacturing a plastic envelope according to claim 1, wherein a folding habit is formed by press-fitting the heat-bending panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1207131A JP2905978B2 (en) | 1989-08-10 | 1989-08-10 | Manufacturing method of plastic envelope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1207131A JP2905978B2 (en) | 1989-08-10 | 1989-08-10 | Manufacturing method of plastic envelope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0369348A JPH0369348A (en) | 1991-03-25 |
| JP2905978B2 true JP2905978B2 (en) | 1999-06-14 |
Family
ID=16534708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1207131A Expired - Fee Related JP2905978B2 (en) | 1989-08-10 | 1989-08-10 | Manufacturing method of plastic envelope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2905978B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0539938U (en) * | 1991-10-25 | 1993-05-28 | 良明 河底 | Continuous stacking bag manufacturing equipment |
| EP2910818B1 (en) | 2012-10-16 | 2017-09-20 | NTN Corporation | Hydraulic automatic tensioner for auxiliary device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215632A (en) * | 1975-07-22 | 1977-02-05 | Takada Kasei Kogyo Kk | Process for producing split yarns |
| JPS6020188B2 (en) * | 1979-06-29 | 1985-05-20 | 勇 鮫島 | Automatic paper envelope sealing device |
| JPS5944263B2 (en) * | 1981-05-13 | 1984-10-27 | フジパツク株式会社 | Plastic film bag making and its manufacturing method |
-
1989
- 1989-08-10 JP JP1207131A patent/JP2905978B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0369348A (en) | 1991-03-25 |
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