JPH0761452A - Bag with rectangular bottom - Google Patents
Bag with rectangular bottomInfo
- Publication number
- JPH0761452A JPH0761452A JP22664693A JP22664693A JPH0761452A JP H0761452 A JPH0761452 A JP H0761452A JP 22664693 A JP22664693 A JP 22664693A JP 22664693 A JP22664693 A JP 22664693A JP H0761452 A JPH0761452 A JP H0761452A
- Authority
- JP
- Japan
- Prior art keywords
- flap
- synthetic resin
- laminated
- bag
- semi
- 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.)
- Withdrawn
Links
Landscapes
- Bag Frames (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、片面に合成樹脂層を設
けた用紙からなる郵便、宅配の配送用等に使用する角底
袋に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a square bottom bag which is made of paper having a synthetic resin layer on one side and is used for mail delivery, home delivery and the like.
【０００２】[0002]
【従来の技術】従来、郵便、宅配の配送用等に使用する
角底袋は、雨等による吸水防止、内容物の防湿、高重量
内容物の保持、袋の強度補強という機能のために、角底
袋の外側に当たる面に合成樹脂層を設けた用紙が用いら
れている。それらの角底袋の場合、底折りにより製造さ
れる袋については角底部分において合成樹脂層面同士を
相対応させ接着させなければならない部分が存在し、合
成樹脂層面同士の接着は困難で有るために底部の接着強
度が不足することがある。2. Description of the Related Art Conventionally, a square-bottomed bag used for delivery by mail or home delivery has the functions of preventing water absorption due to rain, preventing moisture of contents, holding heavy contents, and reinforcing the strength of the bag. A sheet of paper having a synthetic resin layer on its outer surface is used. In the case of those corner bottom bags, there is a portion where the synthetic resin layer surfaces must correspond to each other in the corner bottom portion of the bag manufactured by bottom folding, and it is difficult to bond the synthetic resin layer surfaces to each other. In addition, the adhesive strength at the bottom may be insufficient.
【０００３】その為に、底折りされる角底部分全体に合
成樹脂層を施してない用紙を用いた場合、雨等による吸
水防止、内容物の防湿、高重量内容物の保持、袋の強度
補強という機能が一部分で損なわれてしまうという欠点
があった。For this reason, when a sheet without a synthetic resin layer is used on the entire corner bottom portion to be folded at the bottom, prevention of water absorption due to rain, moisture prevention of contents, retention of heavy contents, bag strength. There was a drawback that the function of reinforcement was partially lost.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記のよう
な問題点に鑑みてなされたものであり、その目的とする
ところは、角底袋の外側に当たる面に合成樹脂層を設け
た用紙を用いて、雨等による吸水防止、内容物の防湿、
高重量内容物の保持、袋の強度補強に優れた角底袋を提
供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a sheet having a synthetic resin layer on the surface of the bottom of the square bottom bag. To prevent water absorption due to rain, etc.
An object of the present invention is to provide a square bottom bag which is excellent in holding high-weight contents and reinforcing the strength of the bag.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の角底袋は、紙製基材の一方の面に合成樹脂
層を積層した積層シートを合成樹脂層面を外面とした状
態で両側面をガセット折りし、底面が相対する辺に連接
する台形状折り込みフラップにより矩形状に貼着形成し
た角底袋において、前記台形状折り込みフラップの二重
部分で略三角形状をした内面フラップに穿孔部または切
欠部を設けたことを特徴とする。In order to achieve the above object, the square bottom bag of the present invention is a laminated sheet in which a synthetic resin layer is laminated on one surface of a paper base material with the synthetic resin layer surface as the outer surface. In a square bottom bag that is gusseted on both sides in the state, and the bottom surface is connected to opposite sides by a trapezoidal folding flap and formed into a rectangular shape, the trapezoidal folding flap has a double-sided inner surface that is substantially triangular. The flap is provided with a perforated portion or a notched portion.
【０００６】また、上記角底袋において、前記内面フラ
ップが、その折り込み時に当接する部分の少なくとも一
方の面の一部分に合成樹脂層を積層していない部分を設
けたことを特徴とする。Further, in the above-mentioned square bottom bag, the inner surface flap is provided with a portion where at least one surface of the portion which is abutted when folded is not laminated with the synthetic resin layer.
【０００７】[0007]
【作用】本発明では、角底部分で合成樹脂層面同士が相
対応して接着する部分の台形状折り込みフラップの二重
部分で略三角形状をした内面フラップ側に穿孔部または
切欠部を設ける、また前記内面フラップが、その折り込
み時に当接する部分の少なくとも一方の面の一部分に合
成樹脂層を積層していない部分を設けた構成とする事に
より、接着剤もしくは粘着剤を合成樹脂層が積層されて
いない面に浸透させることが出来るようになり、底折り
における角底部分の接着力を高めることが出来る。In the present invention, the perforated portion or the cutout portion is provided on the inner surface flap side having a substantially triangular shape in the double portion of the trapezoidal folding flap at the portion where the synthetic resin layer surfaces are correspondingly bonded to each other at the corner bottom portion, Further, the inner surface flap has a structure in which a synthetic resin layer is not laminated on a part of at least one surface of the portion that comes into contact with the inner flap when the synthetic resin layer is laminated. It becomes possible to permeate into the uncovered surface, and the adhesive strength of the corner bottom portion in bottom folding can be enhanced.
【０００８】[0008]
【実施例】以下、本発明の実施例について図面を参照し
て詳細に説明する。図１は本発明の角底袋を示す全体斜
視図であり、図２は本発明の角底袋の組立て方法を順に
示す斜視図である。Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an overall perspective view showing a square bottom bag of the present invention, and FIG. 2 is a perspective view showing in sequence the method of assembling the square bottom bag of the present invention.
【０００９】本発明の角底袋１の組立て方法を図２に従
って説明すれば、外面にポリプロピレン等の合成樹脂を
押出ラミネーションやドライラミネーション等の適宜の
積層手段で合成樹脂を積層された面２１を有する用紙２
における右側縁部３’の外面（合成樹脂を積層された面
２１）に、接着剤４を塗布する(a) 。A method of assembling the square bottom bag 1 of the present invention will be described with reference to FIG. 2. A surface 21 on which an outer surface of synthetic resin such as polypropylene is laminated by a suitable laminating means such as extrusion lamination or dry lamination is used. Paper 2
The adhesive 4 is applied to the outer surface (the surface 21 on which the synthetic resin is laminated) of the right side edge portion 3'of (a).
【００１０】次いで、前記用紙２において供給方向と平
行する中央線より僅かに左方の箇所及び同用紙２におい
て右側縁部３’より僅かに内方の箇所をＭの字形状に折
り畳むことによって左右の折り込み襞部５、５’を形成
し、且つ用紙２の左右両縁部３、３’を重合させて、前
記接着剤４で貼着することによって、ガセット筒状の袋
素材６を形成した(b) 。Next, by folding the sheet 2 at a position slightly left of the center line parallel to the feeding direction and at a position slightly inward of the right side edge 3'of the sheet 2 into an M-shape, Fold folds 5 and 5 ′ are formed, and the left and right edges 3 and 3 ′ of the paper 2 are polymerized and adhered with the adhesive 4 to form a gusset tubular bag material 6. (b).
【００１１】次いで、この袋素材６を、該袋素材６に対
して完成後に底部となる箇所を開き、更に開いた底を扁
平状に押潰して袋素材６の底部にほぼ８角形を呈する半
完成底７を形成する。この時、事前に半完成底７におけ
る台形状折り込みフラップの二重部分で略三角形状の内
面フラップ部９、９’、１０、１０’に穿孔部１１、を
穿設すると共に、半完成底７に二条の折れ線１２、１
２’により半完成底７に台形状折り込みフラップ８、
８’を形成する(c) 。Next, the bag material 6 is opened at a portion which will be the bottom after completion of the bag material 6, and the opened bottom is crushed into a flat shape so that the bottom of the bag material 6 has a substantially octagonal shape. The finished bottom 7 is formed. At this time, a perforation portion 11 is previously formed in the substantially triangular inner surface flap portions 9, 9 ', 10, 10' by a double portion of the trapezoidal folding flap on the semi-finished bottom 7 and the semi-finished bottom 7 is also formed. Nijo's broken line 12, 1
Trapezoidal flap 8 on semi-finished bottom 7 by 2 ',
To form 8 '(c).
【００１２】次いで、一方の台形状折り込みフラツプ８
における穿孔部１１を含む内面フラップ部９、９’に接
着剤を塗布した後、折れ線１２によって折り畳み貼着す
る(d) 。続いて、もう一方の台形状折り込みフラツプ
８’の穿孔部１１を含む内面フラップ部１０、１０’及
び台形状折り込みフラツプ８’において二重部分となっ
ていない部分１３の折り畳み時に台形状折り込みフラツ
プ８と重なる箇所１３’に接着剤を塗布した後、折れ線
１２’によって折り畳み貼着し角形の完成底１５を得る
(e) ことにより、図１に示したような角底袋１が得られ
る。Next, one trapezoidal folding flap 8
After applying the adhesive to the inner surface flap portions 9 and 9 ′ including the perforated portion 11 in FIG. Then, the trapezoidal folding flap 8'when the inner surface flap portion 10 and 10 'including the perforated portion 11 of the other trapezoidal folding flap 8'and the portion 13 of the trapezoidal folding flap 8'which is not a double portion are folded. After the adhesive is applied to the overlapping portion 13 ', it is folded and adhered by the polygonal line 12' to obtain a square finished bottom 15.
(e) As a result, the square bottom bag 1 as shown in FIG. 1 is obtained.
【００１３】図２−(c) において、台形状折り込みフラ
ップ部８の内面フラップ部９と半完成底７の中位部１
４、内面フラップ部９’と半完成底７の中位部１４’が
相対応し、接着剤が塗布され貼着される。従って、該内
面フラップ部９、９’に穿孔部１１を穿設する事によ
り、内面フラップ部９、９’に塗布された接着剤は、該
穿孔部１１を通して該穿孔部１１内に露出する台形状折
り込みフラップ８の合成樹脂を積層されてない面２２に
浸透し、合成樹脂を積層されてない面２２と半完成底７
の中位部１４、１４’が貼着することにより内面フラッ
プ部９と半完成底７の中位部１４、内面フラップ部９’
と半完成底７の中位部１４’は確実に貼着されることに
なる。In FIG. 2- (c), the middle flap 1 of the trapezoidal folding flap 8 and the middle flap 1 of the semi-finished bottom 7 are shown.
4, the inner surface flap portion 9'corresponds to the middle portion 14 'of the semi-finished bottom 7, and an adhesive is applied and attached. Therefore, by forming the perforated portion 11 in the inner surface flap portions 9 and 9 ′, the adhesive applied to the inner surface flap portions 9 and 9 ′ is exposed through the perforated portion 11 into the perforated portion 11. The synthetic resin of the shape folding flap 8 penetrates into the surface 22 where the synthetic resin is not laminated, and the surface 22 where the synthetic resin is not laminated and the semi-finished bottom 7
The inner flaps 9 and the middle flaps 14 of the semi-finished bottom 7 and the inner flaps 9'because the middle flaps 14 and 14 'are attached.
Then, the middle portion 14 'of the semi-finished bottom 7 is securely attached.
【００１４】更に、図２−(d) において、内面フラップ
部１０と半完成底７の中位部１４、内面フラップ部１
０’と半完成底７の中位部１４’及び台形状折り込みフ
ラップ８’の合成樹脂を積層されてない面２２と台形状
折り込みフラップ８の外面の合成樹脂を積層された面２
１が相対応し、接着剤が塗布され貼着される。従って、
該内面フラップ部１０及び１０’に穿孔部１１を穿設す
る事により、内面フラップ部１０、１０’に塗布された
接着剤は、該穿孔部１１を通して該穿孔部１１内に露出
する台形状折り込みフラップ８’の合成樹脂を積層され
てない面２２に浸透し、合成樹脂を積層されてない面２
２と半完成底７の中位部１４、１４’、及び台形状折り
込みフラップ８’において二重部分となっていない部分
１３の折り畳み時に台形状折り込みフラップ８と重なる
箇所１３’と台形状折り込みフラップ８の外面の合成樹
脂を積層された面２１が接着することにより内面フラッ
プ部１０と半完成底７の中位部１４、内面フラップ部１
０’と半完成底７の中位部１４’、及び台形状折り込み
フラップ８’の合成樹脂を積層されてない面２２と台形
状折り込みフラップ８の外面の合成樹脂を積層された面
２１は確実に貼着されることになる。Further, in FIG. 2 (d), the inner flap portion 10, the middle portion 14 of the semi-finished bottom 7 and the inner flap portion 1 are shown.
0 ′, the middle portion 14 ′ of the semi-finished bottom 7 and the trapezoidal folding flap 8 ′ surface 22 on which the synthetic resin is not laminated and the trapezoidal folding flap 8 outer surface on which the synthetic resin is laminated 2
1 corresponds to each other, and an adhesive is applied and attached. Therefore,
By forming the perforated portion 11 in the inner surface flap portions 10 and 10 ′, the adhesive applied to the inner surface flap portions 10 and 10 ′ is trapezoidal fold exposed through the perforated portion 11 into the perforated portion 11. The surface 2 of the flap 8 ′ which has penetrated the synthetic resin non-laminated surface 22 and is not laminated with the synthetic resin 2
2 and the middle portion 14, 14 'of the semi-finished bottom 7 and the trapezoidal folding flap 8', the portion 13 'and the trapezoidal folding flap that overlap with the trapezoidal folding flap 8 when the non-double portion 13 is folded. The inner surface flap portion 10, the middle portion 14 of the semi-finished bottom 7 and the inner surface flap portion 1 are adhered to each other by adhering the synthetic resin laminated surface 21 of the outer surface 8.
0 ′ and the middle part 14 ′ of the semi-finished bottom 7, and the surface 22 of the trapezoidal folding flap 8 ′ on which the synthetic resin is not laminated and the outer surface 21 of the trapezoidal folding flap 8 on which the synthetic resin is laminated are reliable. Will be attached to.
【００１５】半完成底７における内面フラップ部９、
９’、１０、１０’に設ける穿孔部１１は、内面フラッ
プ部９、９’、１０、１０’に塗布された接着剤もしく
は粘着剤を合成樹脂を積層されてない面２２へ浸透させ
るために設けられるものであり、その大きさは適宜で、
内面フラップ部９、９’、１０、１０’の各面積以内で
あれば良く、その形は、実施例では穿孔部１１を三角形
に形成したものを示したが、穿孔部１１の形状は図示の
ものに限定されるものでなく、四角形でも、その他の多
角形、または円形でもよい。また、内面フラップ部９、
９’、１０、１０’の内縁部に切欠部を設けてもよく、
内面フラップ部９、９’、１０、１０’を切除いてもよ
い。The inner flap portion 9 of the semi-finished bottom 7,
The perforated portion 11 provided in 9 ', 10, 10' is provided to allow the adhesive or pressure-sensitive adhesive applied to the inner surface flap portion 9, 9 ', 10, 10' to penetrate into the surface 22 on which the synthetic resin is not laminated. It is provided, the size is appropriate,
It suffices if the inner surface flap portions 9, 9 ', 10, 10' are within the respective areas, and the shape thereof is shown by forming the perforation portion 11 in a triangular shape in the embodiment, but the shape of the perforation portion 11 is not shown. The shape is not limited to one, and may be a quadrangle, another polygon, or a circle. Also, the inner flap portion 9,
You may provide a notch in the inner edge of 9 ', 10, 10',
The inner flap portions 9, 9 ', 10, 10' may be cut off.
【００１６】更に、内面フラップ部９、９’、１０、１
０’が、その折り込み時に当接し、接着剤によって折り
畳みにより貼着する部分の少なくとも一方の面を、合成
樹脂層を積層してない部分とすることによって塗布され
た接着剤が用紙面に浸透し確実に貼着されることにな
る。Further, the inner flap portions 9, 9 ', 10, 1
0'abuts at the time of folding, and at least one surface of the portion to be adhered by folding with the adhesive is made a portion where the synthetic resin layer is not laminated, so that the applied adhesive penetrates into the paper surface. It will be surely attached.
【００１７】[0017]
【発明の効果】本発明は、以上説明したように、紙袋の
外側に当たる面全面に合成樹脂層を積層された用紙を使
用し、角底部分で合成樹脂層面同士が相対応して接着す
る部分の片側の面に穿孔部を設け、該穿孔部を通して接
着剤を合成樹脂が積層されてない面に浸透させ貼着を行
うために、雨等による吸水防止、袋内容物の防湿、高重
量内容物の保持、袋の強度補強機能を充分発揮できる角
底袋を比較的容易に得ることが出来る。As described above, according to the present invention, a sheet in which a synthetic resin layer is laminated on the entire surface of the outer side of the paper bag is used. A perforated portion is provided on one side of the sheet, and the adhesive is permeated through the perforated portion to the surface on which the synthetic resin is not laminated, so that the adhesive can be adhered. It is relatively easy to obtain a square-bottomed bag capable of holding objects and sufficiently reinforcing the strength of the bag.
【図１】本発明の角底袋の斜視図である。FIG. 1 is a perspective view of a square bottom bag of the present invention.
【図２】本発明の角底袋の組立て方法を順に示す斜視図
である。FIG. 2 is a perspective view showing in sequence the method of assembling the square bottom bag of the present invention.
１ 角底袋 ２ 用紙 ２１合成樹脂を積層された面。 ２２合成樹脂を積層されてない面 ３ 左側縁部 ３’右側縁部 ４ 接着剤 ５、５’折り込み襞部 ６ 袋素材 ７ 半完成底 ８ ８’台形状折り込みフラップ部 ９ ９’１０ １０’ 内面フラップ部 １１穿孔部 １２ １２’折れ線 １３ 折り込みフラップの二重部分となってない部分 １３’折り畳み時に折り込みフラップと重なる箇所 １４ １４’半完成底の中位部 １５ 角形の完成底 1 square bottom bag 2 paper 21 surface laminated with synthetic resin. 22 Surface not laminated with synthetic resin 3 Left edge 3'Right edge 4 Adhesive 5, 5'Folded folds 6 Bag material 7 Semi-finished bottom 8 8 'Trapezoidal folded flaps 9 9'10 10' Inner surface Flap part 11 Perforated part 12 12 'Folded line 13 Part that does not become double part of folding flap 13' Part that overlaps with folding flap when folding 14 14 'Middle part of semi-finished bottom 15 Square finished bottom
Claims (2)
した積層シートを合成樹脂層面を外面とした状態で両側
面をガセット折りし、底面が相対する辺に連接する台形
状折り込みフラップにより矩形状に貼着形成した角底袋
において、前記台形状折り込みフラップの二重部分で略
三角形状をした内面フラップに穿孔部または切欠部を設
けたことを特徴とする角底袋。1. A trapezoidal fold in which a laminated sheet in which a synthetic resin layer is laminated on one surface of a paper base material is gusset-folded on both sides with the synthetic resin layer surface being the outer surface, and the bottom surfaces are connected to opposite sides. A rectangular bottom bag formed by sticking and forming a rectangular shape with a flap, characterized in that a perforated portion or a cutout portion is provided on an inner flap having a substantially triangular shape with the double portion of the trapezoidal folding flap.
当接する部分の少なくとも一方の面の一部分に合成樹脂
層を積層していない部分を設けたことを特徴とする請求
項１記載の角底袋。2. The corner bottom bag according to claim 1, wherein the inner surface flap is provided with a portion where at least one surface of the portion which is abutted when folded is not laminated with the synthetic resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22664693A JPH0761452A (en) | 1993-08-20 | 1993-08-20 | Bag with rectangular bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22664693A JPH0761452A (en) | 1993-08-20 | 1993-08-20 | Bag with rectangular bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0761452A true JPH0761452A (en) | 1995-03-07 |
Family
ID=16848446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22664693A Withdrawn JPH0761452A (en) | 1993-08-20 | 1993-08-20 | Bag with rectangular bottom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0761452A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07124490A (en) * | 1994-04-07 | 1995-05-16 | Kansai Matetsuku Kk | Grinding method |
| WO2001054997A1 (en) * | 2000-01-28 | 2001-08-02 | Upm-Kymmene Corporation | A multiple-wall sack with glue between layers, and method of manufacturing |
| CN105923243A (en) * | 2016-06-29 | 2016-09-07 | 石家庄康益包装有限公司 | Packaging bag capable of being opened quickly |
| CN113844096A (en) * | 2021-09-27 | 2021-12-28 | 广州造纸股份有限公司 | Forming method of anti-leakage film-coated square-bottom paper bag |
-
1993
- 1993-08-20 JP JP22664693A patent/JPH0761452A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07124490A (en) * | 1994-04-07 | 1995-05-16 | Kansai Matetsuku Kk | Grinding method |
| JP2548681B2 (en) * | 1994-04-07 | 1996-10-30 | 関西マテック株式会社 | Grinding equipment |
| WO2001054997A1 (en) * | 2000-01-28 | 2001-08-02 | Upm-Kymmene Corporation | A multiple-wall sack with glue between layers, and method of manufacturing |
| CN105923243A (en) * | 2016-06-29 | 2016-09-07 | 石家庄康益包装有限公司 | Packaging bag capable of being opened quickly |
| CN113844096A (en) * | 2021-09-27 | 2021-12-28 | 广州造纸股份有限公司 | Forming method of anti-leakage film-coated square-bottom paper bag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20001031 |