JP2016108011A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag in which flow path is hardly sealed and pouring out may be carried out even with a folding mark is provided by folding for re-seal after opening.SOLUTION: There is provided a packaging bag 100 in which upper part comprising a pouring path 5 is folded on a folding plan line 12 for engagement to prevent leakage of content. The pouring path is formed with pouring path seal parts 6, 7. Upper edge of the lower pouring path seal part 7 is formed in a straight line over the folding plan line. In addition, a spout 4 is arranged on a tip end part of the pouring path. The spout is positioned outer than width of a lower part of the packaging bag. Furthermore, an unseal part 10 connected to a left side seal part 1 at the side where the spout is arranged and surrounded by the seal part is arranged. A injection part 11 into which the folded spout is inserted to engage it on a forward film of the unseal part is arranged.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging bag. More specifically, the present invention relates to a packaging bag having a reseal function.

  There are packaging bags for storing liquid contents such as shampoos, rinses, body soaps, liquid detergents, and toiletries represented by softeners, but normal packaging bags cannot be resealed after opening.

  Various improvements have been made to solve this problem. For example, there is a packaging bag provided with a pour-out path and a spout with a screw cap provided at the tip of the pour-out path so that it can be resealed. There is also a packaging bag in which a chuck is provided in the vicinity of the opening and is resealed by the chuck.

  In addition to the front and back films, caps, spouts, chuck tapes, and other materials are required, and processing steps are required to bond them. This is costly, so the contents are not expensive. There was a problem that was difficult.

  Therefore, there is a packaging bag in which the packaging bag can be folded and locked without using a member or the like so that the spout is directed downward. For example, the packaging bag has an opening that serves as a spout at the top, and has a folded state holding mechanism that holds the body part folded from the upper end twice or more so as to wind the spout, and holds the folded state There is a packaging bag composed of a side seal fixing mechanism in which the side seals that overlap with each other when the mechanism is folded are engaged or fitted together (Patent Document 1).

  However, this packaging bag has a problem that when folded, the film has creases, and when the creases are poured again, the flow path is blocked and is difficult to pour. This is considered to be due to the occurrence of folds and the occurrence of blockage by applying a load due to folding in the vicinity of the intersection of the seal portion on the lower side of the flow path and the planned folding line when pouring.

  Known documents are shown below.

JP 2013-6624 A

  The present invention has been made in view of the circumstances as described above, and provides a packaging bag that can be poured out after opening, even if it is folded back for re-sealing and has a fold. Is an issue.

The present invention has been made in view of such problems, and the invention according to claim 1 is a packaging bag in which an upper portion with a pouring path is folded back and locked with a planned folding line to prevent outflow of contents,
The pouring path is formed by a pouring path seal portion, and the upper edge of the pouring path seal portion located on the lower side of the pouring path is formed in a straight line beyond the planned return line. It is a packaging bag.

  The packaging bag of the present invention has the above-described configuration, and the upper edge of the pouring path seal portion located below the pouring path is formed in a straight line beyond the planned return line. After that, even if it is folded back for resealing and has a crease, it is difficult to block the flow path when it is poured again, and it can be poured out.

  The invention according to claim 2 of the present invention is characterized in that a spout is provided at a tip portion of the pouring passage, and the spout is located outside the width of the lower portion of the packaging bag. It is a packaging bag of description.

  In the present invention, since the spout is located outside the width of the lower part of the packaging bag, the content storage part is not narrowed by the pouring path seal part that forms the pouring path, and the shape functions. Good and excellent.

  The invention according to claim 3 of the present invention is connected to the side seal portion on the side where the spout is provided, and is provided with an unsealed portion surrounded by the seal portion, and on either the front or back of the unsealed portion. 3. The packaging bag according to claim 1, further comprising an insertion portion for inserting and locking the folded spout.

  An unsealed part surrounded by a seal part is provided, and an insertion part for inserting and locking the folded spout is provided on either the front or back film of the unsealed part, and the spout is inserted into the insertion part. When locked, the spout is located between the front and back films, so that liquids and other contents attached to the periphery of the spout may drip into the unsealed part but spill onto the outer surface of the packaging bag. There is no fouling.

  The invention according to claim 4 of the present invention is characterized in that when the spout is opened, the lower discharge passage seal portion and the side seal portion form a recess, and the expected folding line is located in the recess. The packaging bag according to any one of claims 1 to 3.

  In the present invention, when the pour spout is opened, the lower pouring channel seal part and the side seal part form a recess, and the expected folding line is located in the concave part, so that it is easily folded at the scheduled folding line. be able to.

  The invention according to claim 5 of the present invention is the packaging bag according to any one of claims 1 to 4, wherein a half-cut line is provided at the position of the expected folding line.

  In the present invention, since the half-cut line is provided on the planned folding line, the folding line can be easily folded.

  The invention according to claim 6 of the present invention is characterized in that a bottom seal portion is provided in the bottom portion of the packaging bag with the folded portion of the bottom tape folded in half and sealed in a boat bottom mold. It is a packaging bag given in any 1 paragraph of 1-5.

  In the present invention, the bottom portion of the packaging bag is inserted with the folded portion of the bottom tape folded in two, and the bottom seal portion sealed to the boat bottom mold is provided, so that the capacity can be increased compared to the flat bag. In addition to being able to do this, even if the lock has been released, if the bottom is stood down, the contents will not spill immediately.

The invention according to claim 7 of the present invention is characterized in that the top portion of the packaging bag is formed by folding one film so that the folded portion becomes the upper end of the spout. 6. The packaging bag according to any one of 6 above.

  In the present invention, the top part is formed by folding a single film so that the folded part is at the upper end of the spout, so that the front and back films are separated from the case where the top and bottom of the spout are seal parts. It becomes easier and the front and back films spread, and the flow rate can be increased for the width of the spout. Moreover, when using for refilling, even if the mouth part of the repetitive use container of the refilling destination is small, since there is no seal part on a spout, it is easy to insert in a mouth part.

  Even if the packaging bag of the present invention is folded for re-sealing after being opened and a crease is attached, the blockage of the flow path due to the crease hardly occurs and can be poured out.

It is explanatory drawing which showed typically an example of the packaging bag of this invention. It is XX sectional drawing of FIG. It is explanatory drawing which showed typically the opened state of an example of the packaging bag of this invention. It is explanatory drawing which showed typically the state folded and latched after opening an example of the packaging bag of this invention.

Hereinafter, embodiments for carrying out the present invention will be described.
FIG. 1 is an explanatory view schematically showing an example of the packaging bag of the present invention.
FIG. 2 is a sectional view taken along line XX in FIG.

  As shown in FIG. 1, the packaging bag 100 of this example is formed by folding a single film into front and back films, and a left side seal portion 1 and a right side seal portion 2 are provided. The film folding portion 3 is located at the upper end of the spout 4 provided above the left side seal portion 1.

  The spout 4 is provided at the tip of the pouring channel 5. The pouring path 5 is formed by the folding portion 3, the upper pouring path seal portion 6, and the lower pouring path seal portion 7. The pouring path 5 is provided with an outwardly protruding streak-like emboss 8 to prevent the pouring path 5 from being blocked when the contents are poured out. The lower delivery path seal portion 7 is integrated with the left side seal portion 1 and is a wide seal portion.

  Below the spout 4, a left side seal portion 1 and an unsealed portion 10 surrounded by a seal portion 9 connected to the left side seal portion 1 are provided. In addition, a part of the seal part surrounding the unsealed part 10 is a lower extraction path seal part 7.

  And the insertion port 11 which inserts and stops the pouring spout 4 in the unsealed part 10 is provided in the film of the front side. The insertion slot 11 is provided with an elongated through hole such as a cut line or an oval.

  As shown in FIG. 2, the unsealed portion 10 is surrounded by the front and back films and the left side seal portion 1 and the seal portion 9, and the insertion portion 11 is provided on the front film. The spout 4 is inserted and locked into the unsealed portion 10 from the insertion portion 11.

Moreover, the folding | returning plan part 12 is provided in the horizontal direction, and the upper edge of the lower side extraction channel seal part 7 is formed in a straight line over the folding-back part 12. The scheduled return portion 12 can be displayed by printing or the like. In this example, a half-cut line is provided, which makes it easier to turn back.

  Although the half cut line can be provided by half punching, it is preferable to provide the half cut line with a laser such as a carbon dioxide laser. In addition, a plurality of fine scratches may be provided in a band shape on the scheduled turn-up portion 12.

  The wide seal portion in which the lower pouring channel seal portion 7 and the left side seal portion 1 are integrated is provided with an opening line 13 that guides opening to the spout 4 and opens the spout 4. The unsealing line 13 is provided as a half cut line.

  The unsealing line 13 is inclined to extend inwardly from the bottom along the unsealed portion 10, bends outward, proceeds along the upper edge of the lower pouring channel seal portion 7, bends, and pours. The mouth is opened.

  The right side of the upper pouring channel seal portion 6 in the figure is unsealed as a filling port 14 for filling the contents. After filling, it is sealed to become a top seal portion, and the top portion is formed together with the folding portion 3.

  At the lower end portion of the packaging bag 100, a bottom tape 15 folded in half between the front and back films is inserted with the folded portion up, and a bottom seal portion 16 sealed in a boat bottom mold is formed. Thereby, the packaging bag 100 can increase a capacity | capacitance rather than the flat bag of the same dimension. Moreover, even if the folded back and resealed lock is released, if the bottom is stood down, the contents will not spill immediately.

FIG. 3 is an explanatory view schematically showing an opened state of an example of the packaging bag of the present invention.
FIG. 4 is an explanatory view schematically showing a state in which an example of the packaging bag of the present invention is folded and locked after opening.

  The packaging bag of FIG. 1 is filled with the contents from the filling port 14 and sealed to provide a top seal portion 14a. Thereby, the packaging bag 100 filled and sealed with the contents is obtained. If the opening line 13 of this packaging bag 100 is cut | disconnected and the spout 4 is opened, it will become like FIG. 3 and the content can be poured out from the spout 4. FIG.

  At this time, when the unsealing line 13 is cut and the spout 4 is opened, the lower side pouring path seal portion 7 and the left side seal portion 1 form a recess 17. The left end portion of the expected folding line 12 is positioned in the recess 17. When the upper portion of the bag is folded along the scheduled folding line 12, the folding is facilitated by the recess 17.

  The spout 4 is located outside the width of the lower part of the packaging bag 100 and does not narrow the contents storage part by the pour-out path seal part 7 or the like that forms the pour-out path 5, and the shape functions. Good and excellent.

  If the contents still remain after pouring out the contents, the upper part can be folded back at the scheduled return line 12 to be resealed and left. That is, as shown in FIG. 4, it is folded at the planned folding line 12, and the spout 4 is inserted and locked from the insertion portion 11.

  Thus, since the spout 4 is accommodated in the space of the unsealed portion 10, the contents do not hang down from the periphery or the inside of the spout 4 to the outer surface of the packaging bag 100, and the liquid droplets are not sealed. It falls into 10 and does not pollute the outer surface.

  In order to manufacture the packaging bag 100 of this example, the insertion part 11 and the embossing 8 are provided on the front and back films on the bag making machine, and the front and back films are folded to the folding part 3 while the bottom tape 15 is sandwiched between the bottom parts. The bottom seal portion 16 and other seal portions 1, 2, 6, 7, and 9 are sealed, and a half cut line is provided by laser processing at the position of the folding line 12 and the opening line 13, and the outer shape is formed by punching. For example, a packaging bag as shown in FIG. 1 can be manufactured.

  In the packaging bag of the present invention, as described above, the upper edge of the pour-out path seal portion located on the lower side of the pour-out path is formed in a straight line beyond the expected folding line. For this reason, even if it is folded back and has a crease, it is difficult to block the flow path when it is poured out again, and it can be poured out.

  Further, since a chuck, a cap, a spout, or the like is not used for resealing, a necessary amount of resin can be reduced and an environmental load can be reduced. Further, the manufacturing method is simple, no special process is required, and the manufacturing cost can be reduced.

DESCRIPTION OF SYMBOLS 100 ... Packaging bag 1 ... Left side seal part 2 ... Right side seal part 3 ... Folding part 4 ... Spout 5 ... Pouring path 6 ... Upper pouring path seal part 7 ... Lower outlet channel seal part 8 ... Emboss 9 ... Seal part 10 ... Unseal part 11 ... Insertion part 12 ... Folded line 13 ... Opening line 14 ... Filling port 14a: Top seal 15 ... Bottom tape 16 ... Bottom seal 17 ... Recess

Claims (7)

A wrapping bag in which the upper part with the pouring path is folded back and locked with a planned return line to prevent the outflow of contents,
The pouring path is formed by a pouring path seal portion, and the upper edge of the pouring path seal portion located on the lower side of the pouring path is formed in a straight line beyond the planned return line. Packaging bag to do.   2. The packaging bag according to claim 1, wherein a pouring spout is provided at a tip portion of the pouring path, and the pouring spout is located outside a width of a lower portion of the packaging bag.   Connected to the side seal portion on the side where the spout is provided, an unsealed portion surrounded by the seal portion is provided, and the folded spout is inserted and locked to either the front or back film of the unsealed portion The packaging bag according to claim 1, wherein an insertion portion is provided.   When the pour spout is opened, the lower pouring channel seal portion and the side seal portion form a recess, and the expected folding line is located in the recess. Item 1. A packaging bag according to item 1.   The packaging bag according to any one of claims 1 to 4, wherein a half-cut line is provided at a position of the expected folding line.   6. The bottom seal portion sealed in a boat bottom mold is provided at the bottom portion of the packaging bag with the folded portion of the bottom tape folded in half, and sealed in a boat bottom mold. Packaging bags.   The packaging according to any one of claims 1 to 6, wherein a top portion of the packaging bag is formed by folding a single film so that the folded portion becomes an upper end of the spout. bag.

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