JP4768258B2 - Multi-layer paper bag with band - Google Patents

Description

  The present invention relates to a banded paper bag in which one side is bound with a band and the mouth is sealed, and more particularly to a multilayered paper bag with a band constituted by a multilayered paper bag.

  In general, among multi-layer paper bags made of multi-layer kraft paper or the like having two to three layers, a multi-layer paper bag with a band in which a band is pasted along the longitudinal direction on the mouth side of the surface layer has been conventionally provided. .

In this multi-layer paper bag with a band, after filling the contents from the open mouth part, the mouth part including the band is bent twice or three times, and then the mouth part is tightly connected to seal the mouth part. ing.

FIG. 11 is a conceptual perspective view of the above-described conventional banded paper bag 1 (hereinafter simply referred to as the paper bag 1). In particular, after the contents such as rice are packed into the multilayer paper bag 1 from the mouth 2 side , The state where the part 2 side is bent three times, the band 3 attached to the mouth part 2 is truly connected, and the mouth part 2 side is sealed is shown. In such a paper bag 1 , the bottom 4 is bent in advance, and further sealed and sealed in advance by a bottom sheet 5 that is a sealing member.

  On the other hand, in order to take out the contents (for example, rice, tea) from the paper bag 1 whose mouth 2 is sealed by the band 3 described above, the end user cuts the band 3 that has been truly tied with a blade, and then bends the mouth 2. Next, it is necessary to lift up and move the paper bag 1 and put the contents into a hopper, for example.

Conventionally, containers for shipping shells, beans, powders and the like are generally made of a paper bag composed of a plurality of layers with a kraft paper trunk. In this paper bag, the opening end of the normal bag is aligned in a straight line, and a tied string is sandwiched and stuck between one side of the bag opening and the outer layer paper folded back on this surface. This paper bag, after containing shells, etc., wraps the entire bag opening two or three times, folds both ends of the bag inward, and fastens the straps to seal the bag (Patent Document) 1 page 1 line 14 to line 19 and page 2 line 1 to line 4).
Further, conventionally, in a paper bag composed of a plurality of layers containing shells and the like, a strap is held between one side of the bag opening and the first layer paper folded back on this surface, and appears on the surface of the one side. Two tongue lines are placed vertically below the second layer paper to provide a tongue piece, and this tongue piece is folded and attached to the folded first layer paper, and cut into the bag opening from which the tongue piece has been removed. There has been proposed a paper bag that is easy to open and is characterized by providing a portion (see the claims of Patent Document 1).
Further, in the conventional shell bag for a shell, in which a support hole for supporting the upper end of the bag is provided in the vicinity of the upper end opening having the opening / closing mechanism of the bag body, and the opening / closing fastener is provided in the opening, An overlap portion is formed, a suspension belt is attached, a flat bottom surface is formed at the bottom of the bag body, a discharge port that can be opened and closed by a fastener is provided at the center of the flat bottom surface, and the discharge port is opened from the inside of the bag body. A shell bag has been proposed in which an inner lid that covers and protects so as to be openable and closable is provided (see the claims of the utility model registration in Patent Document 2).
Conventionally, a paper bag having a cut tape for opening is bonded to the opening of the cylindrical paper bag body, and a gusset is formed on the side surface of the paper bag body, and formed at both ends of the opening of the paper bag body. The stepped portion is bent toward the surface of the paper bag body so as to close the opening, the stepped portion is surrounded by the backing paper, and the cut tape is disposed on the upper and lower portions of the stepped portion, respectively. There has been proposed a paper bag characterized in that it is constituted by the first and second cut tapes provided (see the claims of Patent Document 3).
Also, conventionally, only one or several outer layers are cut along one pleat top of the lip of the pleated multilayer cylindrical body, and all the other layers are folded inward leaving the outer layer, and the outer layer A pleated multi-layer bag is proposed in which glue is applied over substantially the entire surface of the inner surface of the bag and the surface of the bent portion, the portion substantially along the edge of the bent portion is bent, and the paste surface is adhered to the bag body. (Refer to the claims of Patent Document 4).

Microfilm of Japanese Utility Model No. 53-102449 (Japanese Utility Model Application No. 55-21907) Microfilm of Japanese Utility Model No. 61-27184 (Japanese Utility Model Application No. 63-79345) Japanese Patent Laid-Open No. 8-143047 Japanese Utility Model Publication No. 44-15572

By the way, according to the conventional paper bag 1 described above, in order for the end user to open the mouth portion, the band 3 that is truly tied must be cut with a blade, and further the work for unfolding the mouth portion 2 that has been folded must be performed. For example, when rice is stored as the contents, the weight of the paper bag 1 is about 30 kg. Therefore, the end user lifts the paper bag 1 and places it in a storage device such as a hopper. Moving work such as throwing it in was very hard work and difficult.

In view of the above-described circumstances, the present invention provides a multi-layer paper bag with a band that can be easily opened and moved.

In order to solve the above-described problems, in the present invention, in a multilayer paper bag with a band in which a sealing band is stuck on one side and the other is sealed in advance by a sealing member, the sealing member is broken on the sealing member. A band reinforcing means for disposing the other side of the multi-layer paper bag with the band, and for preventing the band from dropping off on one side of the multi-layer paper bag with the band to which the sealing band is attached. The band reinforcing means constitutes a folded piece formed by folding a band so as to wrap the band by a pair of slits formed in one of the multilayer paper bags with the band adjacent to the band. A first adhesive layer that bonds between the layers of the banded multilayer paper bag; a surface of the band; and a surface of the banded multilayer paper bag at a position facing the band. A second adhesive layer that adheres to the band, and a third adhesive layer that adheres between the layers of the multi-layer paper bag with the band at a position facing the band, the one is folded once so as to cover the folded piece, The entire bent portion including the bent pieces is further bent to form a final bent portion, whereby the one is sealed.

Described above, according to the banded multilayer paper bags, move lifting using equipment such as Mamusubi bands, for example, a crane, then when broken by operating the opening means disposed closure members, with bands The other side of the multi-layer paper bag is easily opened, so the contents (for example, rice, tea) stored in the multi-layer paper bag with a band can be easily stored in a storage device such as a hopper. It is possible to provide a multi-layer paper bag with a band that is extremely easy to open and move for an end user.

Hereinafter, an embodiment of a multilayered paper bag with a band according to the present invention will be described in detail.

FIG. 1 is a front view showing a multilayered paper bag 10 with a band (hereinafter simply referred to as a paper bag 10) according to the present invention.

The paper bag main body 11 of the paper bag 10 is a pleated paper bag made up of a two-layer cylindrical body (tube body) made of kraft paper.

The mouth portion 12 which is one side of the paper bag body 11 is cut straight. Further, both end portions S in the vicinity of the fold line 13 adjacent to the mouth portion 12 remain about 10 mm each, and the vertical slit L is cut about 30 mm, and the whole is bent to the surface side 11 a of the paper bag body 11 to wrap the band 15. A multilayer folded piece 14 is formed.

On the other hand, a band 15 formed of a paper string or the like along the longitudinal direction of the front side 11a of the paper bag main body 11 adjacent to the mouth portion 12 is attached in advance in the same manner as in the past. Has been.

Further, the bottom 43 which is the other side of the paper bag main body 11 is sealed and sealed in advance by a bottom backing paper 17 which is a sealing member.

On the other hand, as shown in FIG. 2 shown in the rear view of the paper bag body 11, an opening means 20 that can break the bottom backing paper 17 along its longitudinal direction is formed on a part of the bottom backing paper 17. ing.

The opening means 20 is constituted by an opening tape 20a in the embodiment. In addition, in order to show the position where this opening tape 20a exists, a pair of slits 17a is formed in the bottom backing paper 17 along the longitudinal direction.

On the other hand, in order to prevent the band 15 previously attached to the bent piece 14 from falling off, as shown in FIG. 3 shown in the AA line cross-sectional view in FIG. 1 and FIG. 4 shown in the enlarged cross-sectional view of the main part of the bent piece 14. The paper bag main body 11 is formed with band reinforcing means 30.

As shown in FIG. 4, the band reinforcing means 30 bonds the bent piece 14 and the outer layer 21 and the inner layer 22 of the paper bag body 11 constituting the bent piece 14, that is, the layer of the paper bag 10. The first adhesive layer 31 to be bonded, the surface of the band 15 and the surface of the outer layer 21 at a position facing it, the second adhesive layer 32 to be bonded, the outer layer 21 and the inner layer 22 at a position facing the band 15 3, that is, a third adhesive layer 33 that adheres the layers of the paper bag 10 .

Thus, the first to third adhesive layers 31 that are the band reinforcing means 30 are provided between the outer layer 21 and the inner layer 22 at a position facing the band 15 and between the outer layer 21 at a position facing the band 15. , 32, and 33, the band 15 is firmly bonded to the paper bag main body 11, and as described later, the band 15 is hung with a hook such as a crane after the ends of the band 15 are tied together. Even so, the band 15 is prevented from falling off the paper bag body 11 as much as possible.

  In FIG. 3, reference numeral 40 denotes a conventional adhesive layer that adheres between the outer layer 21 and the inner layer 22 at a position facing the folded piece 14 before the folding, and 41 and 42 denote the base paper 17 and the outer layer 21, respectively. As shown in FIG. 3, the bottom portions 43 of the outer layer 21 and the inner layer 22 are bent in advance and sealed with the bottom backing paper 17.

Next, the operation of the paper bag 10 described above will be described, and the configuration will be described in more detail.

  First, as shown in FIG. 5, the mouth portion 12 is greatly expanded from the position shown in FIG. 3, and then the contents, for example, rice R, is poured into the mouth portion 12 as indicated by an arrow B.

  Next, as shown in FIG. 6, one side 50 of the mouth portion 12 is bent once so as to cover the bent piece 14, and the entire bent portion 51 including the bent piece 14 is further bent twice as shown in FIG. The final bent portion 60 is formed, thereby sealing the mouth portion 12.

  Next, as shown in FIG. 8, the bent portion 60 described above is bent toward the back side of the paper bag main body 11, and each end portion of the band 15 is tied with a true knot, thereby fastening the hand 15.

  Next, as shown in FIG. 9, the hook 70 of the conveying means such as a crane (not shown) is engaged with the band 15 and the paper bag 10 is lifted as indicated by the arrow C.

  At that time, as described above, the band 15 is the first band reinforcing means 30 between the outer layer 21 and the inner layer 22 at a position facing the band 15 and between the outer layer 21 at a position facing the band 15. Or the third adhesive layers 31, 32, and 33 are bonded and reinforced (FIG. 4), the band 15 is firmly bonded to the paper bag main body 11, and thus a heavy paper bag containing the contents (for example, rice). Even if the main body 11 is lifted by the hook 70 and moved, the band 15 can be easily moved without falling off the paper bag main body 11.

  Then, the paper bag 10 is moved to the position where the hopper or the like is disposed, and then the opening tape 20a of the opening means 20 is pulled as indicated by an arrow D, and the bottom backing paper 17 is broken, as shown in FIG. The bottom 43 of the main body 11 can be easily opened, and the rice R, which is the contents, can be dropped downward as indicated by the arrow E and can be easily put into the hopper.

In addition to the band reinforcing means 30, the exposed portion 80 of the mouth portion 12, which is one end of the paper bag 10 exposed by the formation of the folded piece 14 shown in FIG. It is possible to further improve the reinforcing effect of the band.

In the above embodiment, the two-layer paper bag 10 is used. However, the number of layers is not limited to the above-described embodiment, and the present invention may be applied to a multilayer paper bag with two or more layers and a paper bag. The present invention may be applied to a multi-layer paper bag with a band without pleats, not limited to one with pleats.

  Furthermore, in the above-described embodiment, the opening means 20 is disposed on the bottom backing paper 17 which is a sealing member as a separate member. However, the present invention is not limited to the above-described embodiment. 17 may be applied to a type in which one end of the paper bag main body seals one (bottom part) as a sealing member, such as a so-called bottom bag. The unsealing means 20 may be applied to the sealing member itself.

  As described above, the present invention is suitable for a multi-layer paper bag with a band that can be easily opened and moved.

FIG. 1 is a front view of a multilayered paper bag with a band according to the present invention. FIG. 2 is a rear view of the multilayer paper bag with a band according to the present invention. 3 is a cross-sectional view taken along line AA in FIG. 4 is an enlarged view of the main part of FIG. FIG. 5 is a cross-sectional view showing the operation of the multi-layer paper bag with bands according to the present invention. FIG. 6 is a cross-sectional view showing the operation of the multi-layer paper bag with bands according to the present invention. FIG. 7 is a cross-sectional view showing the operation of the multilayered paper bag with a band according to the present invention. FIG. 8 is a conceptual perspective view showing the operation of the multi-layer paper bag with bands according to the present invention. FIG. 9 is a conceptual perspective view showing the operation of the multi-layer paper bag with bands according to the present invention. FIG. 10 is a conceptual perspective view showing the operation of the multi-layer paper bag with bands according to the present invention. FIG. 11 is a conceptual perspective view showing a conventional multilayer paper bag with a band.

10 ... Multilayer paper bag with a band (paper bag)
12 ... One (mouth)
14 ... Folded piece 15 ... Band
43 ... the other (bottom)
17 ... Sealing member (bottom backing paper)
20 ... opening means 20a ... opening tape 30 ... band reinforcing means 31 ... first adhesive layer 32 ... second adhesive layer 33 ... third adhesive layer 80 ... exposed portion L ... slit

Claims (3)

In a multilayered paper bag with a band in which a band for sealing is stuck on one side and the other is sealed and sealed in advance by a sealing member,
The sealing member is provided with an opening means for breaking the sealing member and opening the other side of the banded multilayer paper bag ,
Band reinforcing means for preventing the band from dropping off is formed on one side of the multi-layer paper bag with the band to which the band for sealing is attached,
The band reinforcing means includes a folded piece that is folded so as to wrap the band by a pair of slits formed in one of the multilayered paper bags with the band adjacent to the band, and the multilayer with the band that constitutes the folded piece. A first adhesive layer that bonds between the layers of the paper bag, a second adhesive layer that bonds between the surface of the band and the surface of the multilayer paper bag with the band at a position facing the band, and the band. A third adhesive layer for adhering the layers of the banded multi-layer paper bag at a position;
The multi-layer paper bag with a band, wherein the one side is bent once so as to cover the bent piece, and the entire bent portion including the bent piece is further bent to form a final bent portion, thereby sealing the one. . The multi-layer paper bag with a band according to claim 1, wherein the opening means is an opening tape. The banded multilayer paper bag is a pleated banded multilayer paper bag,
The multilayered paper bag with a band according to claim 1 or 2 , wherein the folded part is bonded to an exposed portion exposed to one side of the multilayered paper bag with a band by the formation of the folded piece.

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