JP6274033B2 - Packaging bag - Google Patents

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, there is a packaging bag provided with a locking seal portion provided with a slit for locking a spout when the packaging bag is bent downward (Patent Document 1).

  However, in this packaging bag, since the spout is exposed, there is a problem that contents such as liquid adhering to the periphery of the spout drips.

  Known documents are shown below.

JP 2001-151250 A

  The present invention has been made in view of the above circumstances, and is a packaging bag which can be folded and resealed, and the contents such as liquid adhering to the periphery of the spout droop down and stain the outer surface. The problem is to provide a packaging bag without any problem.

This invention is made in view of the subject which concerns, The invention of Claim 1 is the packaging bag which piled up the film of the front and back, and sealed the peripheral part,
The upper end of one side seal part is provided with a nozzle part provided with a content pouring path on the inside, and a locking convex part is provided on the upper side of the other side seal part. A nozzle locking part is provided in the part, and the nozzle locking part is surrounded by a nozzle locking seal part that is connected to one of the side seal parts above and below, and the film on the front and back of the unsealed part A protrusion engaging portion provided at the upper and lower intermediate portions of the other side seal portion, and the upper portion of the packaging bag is folded to the insertion portion side along a planned folding line. When the nozzle portion is inserted from the insertion portion, locked by the nozzle locking portion, and the locking convex portion is locked by the convex locking portion, the tip portion of the nozzle portion is The spout that has been cut and opened is positioned between the films on the front and back of the unsealed part. A packaging bag being characterized in that so as to.

  The packaging bag of the present invention has the above-described configuration. The packaging bag is folded along the planned folding line, the nozzle portion is inserted from the insertion portion and locked by the nozzle locking portion, and the locking convex portion is projected. When locked by the portion locking portion, the packaging bag is locked in a folded state, and can be firmly resealed.

  And since the nozzle part is inserted from the insertion part provided only in one film of the front and back films, and the spout of the nozzle part is located between the front and back films, the liquid adhering to the periphery of the spout etc. Even if the contents hang down in the unsealed portion of the nozzle locking portion, it does not hang down on the outer surface of the packaging bag and become dirty.

  The invention according to claim 2 of the present invention is characterized in that the convex portion locking portion is formed by providing a wide seal portion on the other side seal portion and providing an insertion locking portion on the wide seal portion. The packaging bag according to claim 1.

  In the present invention, since the protruding portion locking portion is provided with a wide seal portion on the other side seal portion, and the insertion locking portion is provided on this wide seal portion, the protruding portion locking portion is firmly locked and the film is The locking projection does not come off from the projection locking portion because it is bent or the film is torn.

  The packaging bag according to claim 1 or 2, wherein at least one of the front and back films surrounded by the nozzle locking seal portion is provided with an emboss. It is.

  In the present invention, since embossing is provided on at least one of the front and back films surrounded by the nozzle locking seal portion, when the nozzle portion is inserted into the insertion portion, the gap between the front and back films separated by the embossing is provided. Can be easily plugged into.

  The invention according to claim 4 of the present invention is characterized in that the side seal portions on the left and right of the planned folding line are provided with notches for facilitating folding along the planned folding line. Or a packaging bag according to claim 1.

  In the present invention, the side seal portions on the left and right sides of the planned folding line are provided with notches for facilitating folding along the planned folding line, so that the folding can be easily performed.

  Invention of Claim 5 of this invention is a packaging bag of any one of Claim 1 to 3 which provided the notch in the said side seal part above the said folding | turning expected line. .

  In the present invention, since the notch is provided in the side seal portion above the planned folding line, the force for moving the folding position from the planned folding line to the position of the notch works, and the locking force increases. , It becomes difficult to release the lock.

  A sixth aspect of the present invention is the packaging bag according to any one of the first to fifth aspects, wherein a half-cut line is provided on 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 7 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 1-6.

  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 of claim 8 of the present invention is characterized in that the top portion of the packaging bag is formed by folding a single film to form the front and back films, with the folded portion being the upper end of the nozzle portion. A packaging bag according to any one of claims 1 to 7.

  In the present invention, the top and bottom of the packaging bag is formed by folding a single film to form the front and back films of the packaging bag, and the folding portion is at the upper end of the nozzle portion. The front and back films can be separated more easily than the case of the seal part, the front and back films can be spread, and the flow rate can be increased for the width of the nozzle part. The nozzle locking portion can be reduced without increasing the length of the insertion portion.

  When the packaging bag of the present invention is folded at the expected folding line, the nozzle part is inserted from the insertion part and locked by the nozzle locking part, and the locking convex part is locked by the convex locking part. It is locked in a folded state and can be resealed.

  And the nozzle part is inserted from the insertion part provided only in one film of the front and back films, and the spout at the tip of the nozzle part is the front and back film of the unsealed part surrounded by the nozzle locking seal part. Because it is located in between, the contents such as liquid adhering to the periphery of the opening at the tip of the nozzle part hangs down in the unsealed part of the nozzle locking part, but does not sag on the outer surface of the packaging bag .

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 state which turned up and locked the example of the packaging bag of this invention. It is explanatory drawing which showed typically the other 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.
FIG. 3 is an explanatory view schematically showing a state in which an example of the packaging bag of the present invention is folded and locked.
FIG. 4 is an explanatory view schematically showing another example of the packaging bag of the present invention.

  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 folded part of the film is the upper end of the nozzle part 3 provided above the left side seal part 1.

The lower side of the nozzle portion 3 is formed by a seal portion in which the left side seal portion 1 is bent inward and recessed. And the extraction channel | path 4 which pours out the content is provided between this recessed seal part and a folding part. In the packaging bag 100 of FIG. 1, the tip portion of the nozzle portion 3 is cut off and opened as a spout 5.

  The right side of the folded portion is sealed to form the top seal portion 6. Before the top seal portion 6 is filled with the contents, the top seal portion 6 is partially opened without being sealed, and serves as a filling port for the contents. The upper side of the right side seal portion 2 is also formed with a seal portion that is bent inward and recessed. An upper end portion of the recessed seal portion is combined with the top seal portion 6 to form a locking projection 7. Thus, since the latching convex part 7 is formed of the seal part, the waist becomes strong and the latching is difficult to be released.

  A nozzle locking portion 8 is provided at the upper and lower intermediate portion of the left side seal portion 1. The nozzle locking portion 8 includes an unsealed portion 10 surrounded by a nozzle locking seal portion 9 connected to the left side seal portion 1 at the top and bottom, and an insertion portion 11 provided only on the surface film of the unsealed portion 10. It has become.

  In this example, the insertion part 11 is provided with a thin and long oval through hole. However, the present invention is not limited to this, and the slit may be formed with a single blade. As shown in the XX sectional view of FIG. 2, the nozzle locking seal portion 9 has embossed embossing on the front and back films of the unsealed portion 10, and the front and back films bulge outward. Yes. For this reason, when inserting the nozzle part 3 from the opening part 5, it becomes easy to insert between the front and back films.

  A convex portion locking portion 12 is provided at an upper and lower intermediate portion of the right side seal portion 2. The convex portion locking portion 12 is formed by providing a wide seal portion 13 on the right side seal portion 2 and providing an insertion locking portion 14 on the wide seal portion 13. The insertion locking part 14 is provided with a thin and long oval through-hole similar to the insertion part 11 of the nozzle locking part 8, but is not limited to this, and is formed by a cut made with a single blade. May be.

  At the bottom of the packaging bag 100, a bottom seal portion 16 is formed which is inserted into the bottom tape 15 folded in half with the folded portion thereof sealed up and sealed in a boat bottom mold. Thereby, by opening the folded bottom tape 15, the packaging bag 100 can be made to stand with the bottom seal part 16 down. And if stored upright, even if the lock is released, the contents will not spill out.

  And the position which folds the packaging bag 100 is the folding line 17 so that the nozzle part 3 can be latched to the nozzle latching part 8, and the latching convex part 7 can be latched to the convex part latching part 12. A half-cut line may be provided on the expected folding line 17 to facilitate folding.

  Further, the left side seal portion 1 and the right side seal portion 2 at the position where the planned folding line 17 intersects may be provided with a notch directed inward from the outer end portion to facilitate folding. If it does in this way, the repulsive force by the bending of a film can be reduced and the state folded stably can be maintained.

  Moreover, like the packaging bag 200 of FIG. 4, the notches 18 and 18 are shifted above the expected folding line 17 so that the left side seal portion 1 and the right side seal portion 2 are directed inward from the outer end portions. It can also be provided.

  In such a case, the force of moving the folding position from the position of the planned folding line 17 to the position of the line connecting the two cutouts 18 and 18 acts, and the locking force is strengthened. Is difficult to come off.

To re-seal the packaging bag of the present invention after cutting the tip portion of the nozzle portion 3 and opening and partially using the contents, the packaging bag is folded back at a predetermined line 17 as shown in FIG. Folding the packaging bag because the nozzle part 3 can be inserted from the insertion part 11 and locked by the nozzle locking part 8 and the locking convex part 7 can be locked by the convex locking part 12 Can be maintained firmly in condition.

  Further, the nozzle locking portion 8 is provided only on one of the unsealed portion 10 surrounded by the nozzle locking seal portion 9 which is connected to the one side seal portion 1 in the vertical direction and the film on the front and back of the unsealed portion 10 Since the nozzle part 3 spout 5 is located between the front and back films of the unsealed part 10 when the nozzle part 3 is inserted from the plug part 11, the spout 5 is formed. Even if the contents such as liquid adhering to the periphery of the tip of the nozzle part 3 hang down in the nozzle locking part 8 unsealed part 10, it does not sag on the outer surface of the packaging bag, and the outer surface may be soiled. Absent.

DESCRIPTION OF SYMBOLS 100,200 ... Packaging bag 1 ... Left side seal part 2 ... Right side seal part 3 ... Nozzle part 4 ... Outlet path 5 ... Outlet 6 ... Top seal part 7 ... Locking convex part 8 ... Nozzle locking part 9 ... Nozzle locking seal part 10 ... Unsealed part 11 ... Insertion part 12 ... Convex part locking part 13・ Wide seal part 14 ... Insertion locking part 15 ... Bottom tape 16 ... Bottom seal part 17 ... Folded line 18 ... Notch

Claims (8)

It is a packaging bag in which the front and back films are overlapped and the periphery is sealed,
The upper end of one side seal part is provided with a nozzle part provided with a content pouring path on the inside, and a locking convex part is provided on the upper side of the other side seal part. A nozzle locking part is provided in the part, and the nozzle locking part is surrounded by a nozzle locking seal part that is connected to one of the side seal parts above and below, and the film on the front and back of the unsealed part A protrusion engaging portion provided at the upper and lower intermediate portions of the other side seal portion, and the upper portion of the packaging bag is folded to the insertion portion side along a planned folding line. When the nozzle portion is inserted from the insertion portion, locked by the nozzle locking portion, and the locking convex portion is locked by the convex locking portion, the tip portion of the nozzle portion is The spout that has been cut and opened is positioned between the films on the front and back of the unsealed part. Packaging bag and said that it has to be.   The packaging bag according to claim 1, wherein the convex portion locking portion is formed by providing a wide seal portion on the other side seal portion and providing an insertion locking portion on the wide seal portion. .   The packaging bag according to claim 1, wherein embossing is provided on at least one of the front and back films surrounded by the nozzle locking seal portion.   The packaging bag according to any one of claims 1 to 3, wherein the side seal portions on the left and right sides of the planned folding line are provided with notches for facilitating folding along the planned folding line.   The packaging bag according to any one of claims 1 to 3, wherein a cutout is provided in the side seal portion above the expected folding line.   The packaging bag according to any one of claims 1 to 5, wherein a half-cut line is provided on the expected folding line.   7. The bottom sealing portion is provided with a bottom seal portion that is inserted into the bottom portion of the packaging bag with the folded portion of the bottom tape folded upward and sealed in a boat bottom mold. 8. Packaging bags.   8. The top part of the packaging bag is formed by folding a single film into the front and back films, and the folding part is at the upper end of the nozzle part. Item 1. A packaging bag according to item 1.

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