JP2016108024A - Packaging bag - Google Patents

Abstract

The present invention provides a packaging bag that can be folded and resealed, and prevents contents such as liquid adhering to the periphery of a spout from dripping down and soiling the outer surface. In a packaging bag 100 comprising a laminated film having a sealant layer as an innermost layer and having a pouring part 3 at the upper end, the pouring part root is folded on the outer surface of the laminated film to accommodate the tip of the pouring part. A storage portion 7 is provided. A storage portion for storing the dispensing portion is formed by a pocket-shaped label fixed to the outer surface of the packaging bag. [Selection] 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, 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 hang down.

  Known documents are shown below.

JP 2001-151250 A

  Therefore, the present invention was made in view of the circumstances as described above, and is a packaging bag that can be folded and resealed, and the contents such as the liquid adhering to the periphery of the spout droop down, It is an object of the present invention to provide a packaging bag that does not stain the outer surface.

  This invention is made | formed in view of the subject which concerns, The invention of Claim 1 consists of a laminated film which has a sealant layer in an innermost layer at least, and in the packaging bag which has an extraction | pouring part in an upper end part, it is on the outer surface of a laminated film. The packaging bag is characterized in that a storage portion is provided for storing the tip of the extraction portion by folding back the base of the extraction portion.

  The packaging bag of the present invention is a packaging bag formed by fusing the innermost sealant layer as described above, folding the base of the pouring part of the packaging bag and inserting the tip of the pouring part into the storage part. When the pouring part is locked, the packing bag is locked in a folded state, and the pouring part can be resealed.

  The invention according to claim 2 of the present invention is characterized in that the storage portion for storing the dispensing portion is formed of a pocket-shaped label fixed to the outer surface of the packaging bag. It is.

  In the present invention, the leading end of the pouring part is inserted into the storage part, and is located between the film of the storage part and the front and back films. Therefore, even if contents such as liquid adhering to the periphery of the spout hang down inside the storage portion, it does not sag on the outer surface of the packaging bag and become dirty.

  The invention according to claim 3 of the present invention is the packaging bag according to claim 1, wherein the storage portion for storing the pouring portion is formed of a film having a thickness of 50 micrometers or more.

  In the present invention, since the film forming the storage part has a thickness of 50 μm or more and has a waist, it is easy to open the front end of the storage part when the extraction part is stored in the storage part, and the workability is good.

  The invention according to claim 4 of the present invention is the packaging bag according to claim 1 or 2, wherein the storage portion for storing the pouring portion has a polyethylene terephthalate film layer having a thickness of 50 microns or more. .

  In the present invention, the film forming the storage part has a polyethylene terephthalate film layer of 50 micrometers or more, and is very stiff. In addition, since it is difficult to swell due to the contents, when the extraction portion is stored in the storage portion, the front end of the storage portion can be easily opened and workability is good. Furthermore, the force which presses down the extraction | pouring part is high, and an extraction | pouring part comes off from a storage part, and cannot remove easily.

  Invention of Claim 5 of this invention has a paper layer as a film which forms the accommodating part which accommodates the extraction | pouring part as an outer layer or an intermediate | middle layer, It is any one of Claims 1-3 characterized by the above-mentioned. This is a packaging bag.

Since the present invention is made of a composite film having a paper layer as an outer layer or an intermediate layer of the film for forming the storage portion, it is easy to insert the film of the storage portion immediately before inserting the pouring portion into the storage portion. If a crease is attached to widen the part, the shape can be maintained for a certain period of time. For this reason, when the dispensing portion is stored in the storage portion, the tip of the storage portion is open, so that it is easy to insert and the workability is good.
In addition, it is easy to get out, the force to push the spout is increased, it is difficult to easily come off from the storage portion, and the penetration of the contents adhering to the tip of the spout portion is made inconspicuous and prevented.

  The invention according to claim 6 of the present invention is characterized in that the storage portion for storing the dispensing portion has an adhesive coating portion, and is partially adhered and fixed to the outer surface of the packaging bag. It is a packaging bag according to crab.

In the present invention, it is possible to adhere and fix the adhesion of the storage portion by adhesive coating.
For this reason, a biaxially stretched polyethylene terephthalate film, a biaxially stretched polypropylene film, or the like that is difficult to be fused can be used as the outer layer of the laminated film constituting the packaging bag. For this reason, it has a firm outer layer and can withstand bending, so the storage part can be opened easily. In addition, a bottom film can be fused between two front and back laminated films, and a standing pouch can be easily produced.
Further, it is easy to provide a storage portion, and productivity is increased.

The invention according to claim 7 of the present invention is characterized in that the wetting index of the outer surface of the laminated film constituting the packaging bag is 40 × 10 ⁻³ N / cm or more. It is a packaging bag.

  In the present invention, since the outer layer of the laminated film constituting the packaging bag has high activity, the adhesive force when sticking and fixing is increased, and the storage portion is not easily detached from the laminated film.

  The invention according to claim 8 of the present invention is characterized in that the shape between the pouring portion and the storage portion is formed with a concave portion so that the pouring portion can be folded back and stored in the storage portion. It is a packaging bag in any one of -6.

  In the present invention, the shape between the extraction portion and the storage portion is cut into a shape having a recess. The shape with this recess makes it easy to fold, and reduces the force that the tip of the pouring part that is folded back and stored in the storage part is pulled out. Therefore, the workability is high and the extraction part can be stored in the storage part stably. It is.

  The invention according to claim 9 of the present invention is the packaging bag according to any one of claims 1 to 7, wherein a half cut line is processed at a position to be folded when the pouring portion is inserted into the storage portion. It is.

  The present invention makes it easy to fold back by reducing half-turning resistance by applying a half cut at a position to be folded back when the pouring portion is inserted into the storage portion, and the tip of the pouring portion that is folded back and stored in the storage portion comes out. Since the force is reduced, the extraction portion can be stably stored in the storage portion.

  The invention of claim 10 of the present invention is characterized in that a bottom film is fused between two front and back laminated films forming a packaging bag to form a standing pouch. It is a packaging bag of description.

  Since the present invention can be formed into a standing pouch shape, it is possible to always stand the pouring part and the storage part upward. Therefore, it is easy to store in a state in which the contents are difficult to leak.

  The invention according to claim 11 of the present invention is such that the front and back laminated films forming the packaging bag are folded back into a front and back film, and the folded tip is the upper end of the pouring part. The packaging bag according to any one of claims 1 to 9, wherein an upper end portion is formed.

In the present invention, the top and bottom of the packaging bag is formed by folding a single film into 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.
In addition, a production line for a small lot can be assembled and the yield can be improved.

  According to the twelfth aspect of the present invention, the storage portion for storing the pouring portion has a quadrangular shape in which the open corner provided in the direction of the pouring portion has a curve, and does not contact the curve of the open angle. The packaging bag according to any one of claims 1 to 11, wherein the side and the vertical side are fixed by adhesion or adhesion.

In the present invention, the storage part is made of a rectangular film having a curve at the open angle, and the front film or the back film and the film of the storage part are fixed by fusion or adhesion.
And the lower side and the vertical side without the curve are fused or adhered to the front film or the back film. The tip of the pouring part inserted into the storage part can be stored by being sandwiched in the storage part, and if the bottom side of the storage part is inclined, the contents attached to the tip of the pouring part hang down. However, leakage can be prevented.

  According to the thirteenth aspect of the present invention, the storage portion for storing the pouring portion has a quadrangular shape with an open corner provided in the direction of the pouring portion having a curve, and the lower side 1 not in contact with the curve of the open angle. The packaging bag according to any one of claims 1 to 11, wherein the side, the vertical side, and a part of the side in contact with the curve of the open angle are fused or fixed with an adhesive.

In the present invention, the storage part is made of a rectangular film having a curve at the open angle, and the front film or the back film and the film of the storage part are fixed by fusion or adhesion.
In addition, the lower and vertical sides without the curve and a part of the side in contact with the curve are fused or adhered to the front film or the back film, so the tip of the pouring part inserted into the storage part Can be securely sandwiched and stored in the storage portion, is difficult to come out, and can prevent leakage even if the contents attached to the tip of the extraction portion hang down.

  A fourteenth aspect of the present invention is the packaging bag according to the twelfth or thirteenth aspect, wherein the storage portion for storing the dispensing portion is provided with a ruled line on a diagonal line passing through the center of the open portion.

In the present invention, a ruled line runs in the center of the open part of the storage unit, and the ruled line separates the film forming the container that is fused or adhered, and the ruled line makes it easy to insert the film in the storage unit. It's a fold-out fold.
For this reason, if there is a ruled line, the tip of the storage portion is open, so that there is a merit that the tip of the extraction portion can be easily stored and the hand is not soiled.

  When the packaging bag of the present invention is folded at the expected folding line, the tip of the pouring part is inserted into the storage part, and the pouring part is locked, the packaging bag is locked in a folded state and resealed. Can do.

  The leading end of the pouring part is inserted into the storage part provided on only one of the front and back films, and the spout at the leading end of the pouring part is surrounded by the locking seal part of the storing part. Since the liquid and other contents attached to the periphery of the opening at the tip of the pouring part hang down inside the storage part, they do not hang down on the outer surface of the packaging bag.

In an example of the packaging bag of this invention, it is the top view and sectional drawing which expanded the cross section of the accommodating part vicinity. In the packaging bag of the present invention, the storage part is an example in which the lower side and the vertical side without a curve and a part of the side in contact with the curve are fixed, folded back by a folding line, and the tip of the pouring part is locked to the storage part It is the top view which shows a state, and sectional drawing which expanded the cross section of the accommodating part vicinity. In another example of the packaging bag of the present invention, in which the storage portion is fixed to the lower side and the vertical side that do not contact the open angle curve, the folded portion is folded back, and the tip of the pouring portion is locked to the storage portion. FIG. 2 is a plan view showing the cross section and an enlarged cross sectional view of the vicinity of the storage section.

The present invention will be described below with reference to the drawings.
FIG. 1-1 is an example of the packaging bag according to the present invention, in which the storage unit is fixed to a lower side and a vertical side with no curve, and a part of the side in contact with the curve.

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 part 60 is the upper end of the pouring part 3 provided above the left side seal part 1.
For this reason, when the closing part 30 is cut off, the upper side of the pouring part 3 becomes a folded part 60, and it becomes difficult to close by the waist of the film, and the film on the front and back is surely spread apart. The dispensing can be done smoothly.

At the lower end of the packaging bag 100, an intermediate film 8 bent to the outer surface side is inserted and formed in a standing pouch.
When the front film 12 and the intermediate film 8, and the back film 13 and the intermediate film 8 are fused and filled with the contents, the folded intermediate film opens to form the bottom, Can stand in.
When the packaging bag 100 is erected in this way, the pouring part 3 is on the upper side, and after pouring, the contents in the vicinity of the pouring part 3 can be moved to the lower side inside the container.

The lower side of the pouring part 3 is formed by a seal part in which the left side seal part 1 is bent inward and is recessed, and a side seal recess part 11 is provided. And between this side seal hollow part 11 and the folding part 60, the extraction path 4 which pours out the contents is provided.
For this reason, the folding line portion for folding is located at a position where two concave portions are connected, so that the folding force can be reduced.
In order to make it easier to fold, a half-cut line may be processed using a laser beam at the fold line portion. When cutting the outer shape with a cutting blade, a half cut may be made with a lower blade, but using a laser has the advantage of improving the yield of good products.

  In the packaging bag 100 of FIG. 1, a notch 31 for cutting off the closing part 30 is formed in the vicinity of the upper end of the left side seal part 1 near the closing part 30 at the tip of the pouring part 3. The tip is open when filling and when not in use.

The right side of the folding part 60 is sealed to form the top seal part 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 top seal portion 6 is also formed with a seal portion that is bent inward and recessed. A folding line 5 is formed between the ceiling seal recess 61 and the side seal recess 11. Therefore, both ends of the folding line 5 have a shape with the top seal depression 61 and the recesses of the side seal depression 11 so that the folding is easy.
Furthermore, the fold line is subjected to half-cut processing to make it easier to fold the root of the extraction portion 3.

FIG. 1-2 is a cross-sectional view of the storage portion 7 cut along the line XX in FIG. 1-1.
The surface film 12 adhering to the storage portion 7 has a surface property with a wetting index of 40 × 10 ⁻³ N / cm or more. This is to ensure that the adhesive can be fixed.

In this example, the storage portion 7 is formed in a pocket shape with a structure in which a label-like film having a square corner with a large curve (R) is adhered. The shape is not limited to a square, and may be a rectangle or a round shape.
The adhesive portion 71 is provided so that the curved side comes to the corner toward the dispensing portion 3 and opens to the curved side.

As for the shape of the adhesive portion 71, three sides were fixed with an adhesive as a lower side and a vertical side that do not contact the open angle curve, and a part of the lower side that contacts the open curve.
If the whole is round, it is better to stick and fix the lower half of the circumference.
For this reason, the storage part 7 forms a recess in a pocket shape so as to securely store the bent distal end of the pouring part 3, and even if the contents adhering to the leading end of the pouring part 3 hangs down. It can be stored inside the part 3 so that the surroundings are not soiled.
In addition, you may fix by fusion rather than adhesion. In this case, the label-like film is heat-sealed using a sealant layer on one side. Of course, in the case of fusion, the outer layer of the laminated film constituting the packaging bag 100 is also fused in advance before processing the whole into a bag shape using a material that can be fused.

  FIG. 2 shows an example of a packaging body in which the storage portion is fixed to a lower side and a vertical side with no curve, and a part of the side in contact with the curve. Fig. 2-1 is a plan view of the whole, Fig. 2-2 is a view of the storage portion 7 cut along the YY portion of Fig. 2-1, and the extraction portion 3 inserted into the storage portion. It is sectional drawing.

In the storage portion 7, a film having a polyethylene terephthalate film layer having a thickness of 50 μm or more is fixed to the surface film 12 with an adhesive.
The polyethylene terephthalate film is biaxially stretched, has a thickness of 50 micrometers or more, and is firm. Therefore, when the pouring part 3 is inserted, the film having the polyethylene terephthalate film layer of the storage part 7 does not follow even if the surface film 12 is recessed, so that the storage part 3 is open and easy to insert.
Instead of polyethylene terephthalate, a loose paper may be used as a base material.
Further, a ruled line 72 is provided on a diagonal line passing through the center of the open portion. The ruled line 72 further protrudes the film of the storage part and creates a gap on the open part side, thereby making it easier to insert the dispensing part 3.

FIG. 3 shows another example of the packaging bag according to the present invention, in which the lower side and the vertical side where the storage portion is not in contact with the open angle curve are fixed with adhesive.
FIG. 3A is a plan view in which the tip of the pouring part 3 is folded back at the folding line 5 and inserted into the storage part 7, and FIG. 3-2 is a storage part cut at ZZ in FIG. 3A. 7 is a cross-sectional view of the extraction portion 3 inserted into the storage portion.

The storage portion 7 is a parallelogram-shaped storage portion whose open angle portion is a curve, and the tip of the extraction portion inserted into the storage portion can be stored by being sandwiched between the storage portions, and is difficult to be removed. If the lower side of the storage part is inclined, even if there is no adhesive side in the part of the side that touches the open curve, even if there is content that hangs on the tip of the pouring part , Can prevent leakage.
Of course, the shape may be rectangular and inclined as a whole, and the shape of the storage portion 7 may be fan-shaped.

The packaging bag 100 according to the present invention is as described above. After the closing part 30 of the pouring part 3 is cut out by the notch 31 and the contents are poured out, it is folded at the folding line 5 at the base of the pouring part 3 and poured out. The packaging bag 100 is simply sealed by simply inserting the tip of the part 3 into the inside from the opening part of the storage part 7 and fixing it.
Therefore, compared to chucks and spouts, etc., it is composed of simple members, so that there is an advantage that the amount of resin for manufacturing the package can be reduced and the environmental load can be suppressed.
In addition, when the bag is resealed, the liquid droplets of the contents attached to the tip of the dispensing portion do not sag.
Furthermore, since the force for opening the bag or the force for engaging the folding position is used for the engagement force, the folding engagement is not easily released.
Moreover, since it is used for a standing pouch, even if the engagement of the spout tip to the storage portion is released, the contents will not leak immediately.
Further, when a half cut is made with a laser, folding becomes easy, and it becomes difficult to disengage the tip of the spout from the storage portion.
In addition, the present invention that makes it possible to use such a very convenient function for a standing pouch is easy to incorporate into a conventional production line, and has a great merit that a function can be added at a low price.

100 ... Packaging bag 1 ... Left side seal part 11 ... Side seal part recess 12 ... Front film 13 ... Back film 2 ...・ ・ Right side seal part 3 ・ ・ ・ ・ ・ ・ Pouring part 30 ・ Closed part 31 ・ Notch 4 ・ ・ ・ ・ ・ ・ Pouring path 5 ・ ・ ・ ・ ・ ・ Folding line 6 ... Ceiling part 60 ... Folding part (top side)
61 ........ Seal seal recess 7... Storage part 71 .. Adhesion part 72 .. Ruled line 8... Intermediate film 81. Seal part

Claims (14)

  In a packaging bag consisting of a laminated film having a sealant layer at least at the innermost layer and having a pouring part at the end, a storage part is provided on the outer surface of the laminated film to fold back the base of the pouring part and store the tip of the pouring part. A packaging bag characterized by that.   The packaging bag according to claim 1, wherein the storage portion for storing the dispensing portion is formed by a pocket-shaped label fixed to the outer surface of the packaging bag.   The packaging bag according to claim 1 or 2, wherein the storage portion for storing the dispensing portion is formed of a film having a thickness of 50 microns or more.   The packaging bag according to any one of claims 1 to 3, wherein the storage portion for storing the dispensing portion has a polyethylene terephthalate film layer having a thickness of 50 microns or more.   The packaging bag according to any one of claims 1 to 4, wherein the film forming the storage portion for storing the dispensing portion has a paper layer as an outer layer or an intermediate layer.   The packaging bag according to any one of claims 1 to 5, wherein the storage unit for storing the dispensing portion has an adhesive coating portion and is partially adhered and fixed to the outer surface of the packaging bag. The packaging bag according to any one of claims 1 to 6, wherein the outer surface of the laminated film constituting the packaging bag has a wetting index of 40 x ^10-3 N / cm or more.   The packaging bag according to any one of claims 1 to 7, wherein the shape between the extraction portion and the storage portion is formed with a concave portion so that the extraction portion can be folded back and stored in the storage portion. .     The packaging bag according to any one of claims 1 to 8, wherein a half-cut line is processed at a position to be folded when the pouring part is inserted into the storage part.   The packaging bag according to any one of claims 1 to 9, wherein a film for bottom is fused between two front and back laminated films forming the packaging bag to form a standing pouch.   The packaging bag according to any one of claims 1 to 10, wherein the front and back laminated films forming the packaging bag are folded back into a single laminated film to form a front and back film.   The storage portion for storing the pouring portion is a quadrangular shape with an open corner provided in the direction of the pouring portion, and the lower side and the vertical side that do not contact the open angle curve are fused, or The packaging bag according to any one of claims 1 to 11, wherein the packaging bag is fixed with adhesive.   The storage portion for storing the extraction portion is a quadrangular shape with an open corner provided in the direction of the extraction portion having a curve, and one lower side and a vertical side that do not contact the open angle curve, and an open curve. The packaging bag according to any one of claims 1 to 11, wherein a part of the side in contact with the bag is fused or fixed with adhesive.   The packaging bag according to claim 12 or 13, wherein the storage portion for storing the dispensing portion is provided with a ruled line on a diagonal line passing through the center of the open portion.

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