JP2019094063A - Self-standing packaging bag - Google Patents

Abstract

[PROBLEMS] To provide a self-supporting packaging bag that does not feel pain even if the contents are heavy and heavy when held by a consumer, without using extra film and without requiring special processes or components. To do. SOLUTION: A front sheet 11 and a back sheet 12 are opposed to each other, and a reverse V-shaped bottom sheet 13 is sandwiched so that edge portions of each sheet are sealed, side seal parts 15 are provided on both sides, and bottom parts are provided on a bottom part. This is a self-supporting packaging bag in which a bottom seal portion 16 that allows the sheet to be developed on the bottom surface of the boat shape is formed, and the front sheet and the back sheet are directly bonded to each other at the notches 14 provided at both end portions of the bottom sheet. In addition, a cut line 17 that surrounds the region on the center side in the width direction with respect to the region on the extension of the side seal portion of the notch penetrates the front side sheet or the back side sheet at the notch portion on both side end portions and bottom seal The front side sheet or the back side sheet is opened by a score line. [Selection] Figure 3

Description

  The present invention relates to a self-supporting packaging bag, and more particularly to a self-supporting packaging bag that is easy to grasp and easy to refill.

  Unlike metal cans and plastic molded containers, self-supporting packaging bags save resources, save resources, and can be reduced in volume at the time of disposal, and can be displayed upright at stores and are easy to draw eyes, shampoos and rinses The liquid contents such as body soap, liquid detergents, and toiletries such as softeners are often used for refilling plastic containers that are used repeatedly.

  The self-supporting packaging bag is also referred to as a standing pouch, and is a packaging bag (pouch) to which self-supporting is provided by providing a gusset called bottom gusset in the bottom of the bag. The bottom gusset is formed by a bottom film folded in a mountain fold towards the top side of the bag. The self-supporting packaging bag expands the bottom gusset to form a bowl-shaped bottom, so that a large internal volume can be obtained while having a simple configuration, has self-supporting properties, and is excellent in displayability and display properties of goods, etc. While having an effect, it is flat before filling of the contents and after use of the contents, and it has a characteristic that it can be crushed flat and can be easily transported or disposed of.

  An example of such a self-supporting packaging bag is shown in FIG. In the self-supporting packaging bag 100, the bottom film 103 is inserted into the lower part of the front film 101 and the back film 102 that form the trunk, and is developed into a bowl shape to form the bottom. There is a side seal 105 integrally joining the side edges of the bag along the vertical direction of the bag. The notch part 104 by which the bottom film 103 was notched is provided in the both sides of the site | part by which the bottom film 103 of the lower end vicinity of the side seal part 105 is pinched, and the front film 101 and the back film 102 are directly bonded together. In general, the front film 101, the back film 102, and the bottom film 103 are attached to the edge of the side seal portion 105, and a plurality of films overlap to be high in rigidity and firm. Furthermore, when a film or material having each function is laminated to impart light shielding properties, impact resistance, abrasion resistance, heat resistance, gas barrier properties, chemical resistance, etc. There is.

  When the consumer grips the self-supporting packaging bag, it is possible to hold the side seal portion firmly because it can be held stably by holding the side seal portion on both sides firmly and stably. As described above, since the side seal portion is hard and protrudes straight to the left and right, the edge of the side seal portion hits a finger or the like, which may cause pain and make it difficult to perform work such as refilling. Therefore, various ideas for making the side seal portion easy to grip have been proposed conventionally.

  For example, Patent Document 1 discloses a pouch container in which a folded portion folded at an unsealed portion close to a side seal portion is formed along at least a part of a side seal portion, and a soft unsealed portion is a side edge It is said that the hard edge portion does not hit the finger when grasped, and it can be made to have a soft feel. However, in the pouch container of Patent Document 1, the amount of film used increases, and a special step of bending the soft unsealed portion is required, and a heat sealing step and an adhesive member for fixing the bent unsealed portion are further required. There was a problem of becoming

  Further, in Patent Document 2, a creasing seal portion is provided at a part of the side seal portion, and a crescent shape in a state in which a part of the film is not sealed on the outer edge side of the side seal portion. The crescent-shaped unsealed film is relatively flexible, the outer edge of the curled seal does not directly touch the finger, and the pressure applied to the finger is also dispersed. As a result, the feel of the hand is good and there is no pain. However, the curled pouch container of Patent Document 2 has a shape in which the outer shape of the pouch is curled, wasteful scraps are generated at the time of molding, the amount of film used increases, and the shape of the pouch is restricted. There is also a problem that there is a restriction.

  Further, Patent Document 3 discloses a pouch container having a cut portion in a side seal portion, and when the side seal portion is pressed in the width direction of the container, the side seal portion is folded back from the cut portion, By folding back the seal part, the touch feeling is improved. However, in the pouch container of patent decentralization 3, before the side seal part is folded back, the hand once touches the rigid seal part. In addition, when the product is displayed as a product, the cut parts may be caught and difficult to align, and it may be difficult to take out, or the side seal part may be broken due to the cut part when impacted by dropping or the like. When the film is thick, the effect of the incised portion is diminished, and a special blade type for providing the incised portion is required.

  Patent Document 4 discloses a pouch container in which the thickness of at least a part of the outer edge portion of the side seal portion is thinner than the inner edge side, and the rigidity of the outer edge portion of the side seal portion is lowered to soften it. Therefore, the softness of the container is not impaired, and a good touch can be realized. However, the pouch container described in Patent Document 4 requires a special processing type for partially thinning the film, etc., and the special processing steps for processing increase, and it is said that adjustment of processing conditions is difficult There was a problem.

Patent No. 5131642 gazette Patent No. 4530713 Patent No. 5224897 Patent No. 6151474

  The present invention has been made to solve the unsolved problems in the prior art as described above, and it is a self-supporting packaging bag which does not feel pain even when the content is heavy when the consumer holds it. It is possible to provide without using extra film, without requiring special processes, processing devices and special members different from ordinary bag making processes, and without having to put special restrictions on the design of the packaging bag. It will be an issue.

In order to solve the above-mentioned subject, the invention concerning claim 1 of the present invention is:
The front sheet and the back sheet are formed of one or more sheet materials, have a front sheet, a back sheet, and a bottom sheet, the front sheet and the back sheet face each other, and the reverse V-folded bottom sheet is the bottom side. The end edges of each sheet are sealed, the side seals are formed on both sides, and the bottom seal is formed at the bottom so that the bottom sheet can be developed on the bottom surface of the hook. A self-supporting packaging bag in which the front side sheet and the back side sheet are directly bonded by notches provided at both side ends,
In the notches at both end portions, a cut line surrounding a region on the center side in the width direction than the extension of the side seal portion of the notches penetrates the front side sheet or the back side sheet. The self-supporting packaging bag is provided in the bottom seal portion, and the front side sheet or the back side sheet is opened by the cut line.

The invention according to claim 2 of the present invention is
The self-standing packaging bag according to claim 1, wherein both ends of the score line are circular or elliptical holes.

The invention according to claim 3 of the present invention is
It is a self-supporting packaging bag according to claim 1, characterized in that both end parts of the cut line are curved.

The invention according to claim 4 of the present invention is
The self-standing packaging bag according to any one of claims 1 to 3, wherein the bottom end of the score line is located outside the top end in the width direction.

The invention according to claim 5 of the present invention is
The self-standing packaging bag according to any one of claims 1 to 4, wherein the cut line is provided on the front side sheet on one side end side and on the back side sheet on the other side end side. .

  According to the invention described in claim 1 of the present invention, a sheet of the front side sheet or the back side sheet opened by the score line is the open bottom of the other sheet at the open portion of the notch. Since the side seal portion is also along the curve or straight line formed by the other sheet by being drawn in and adhered in a curve or straight line along the side seal portion, the side seal portion is not just on the side but on the open sheet side Since the side seal portion falls to the side of the seat that is naturally opened when the consumer grips the side seal portion by pinching and protruding, the edge of the side seal portion does not feel pain with fingers, especially By holding the sheet from the opposite side of the opened sheet, the edge is less likely to hit the finger, and it is possible to provide a self-supporting packaging bag that can be refilled smoothly. Since the cut line is provided in a small area in a simple shape, a special processing device is not necessary, it can be provided without affecting the design of the packaging bag and the like, and no extra film and the like are required.

  According to the second aspect of the invention, when a force to further tear the cutting line is applied by impact or the like, the cutting force is dispersed by making the end of the cutting line a hole such as a circle. It is possible to prevent the progress of the tearing, and the side seal portion is not torn and the independence is not lost.

  Further, according to the invention of claim 3, when a force to further tear the cut line is applied due to an impact or the like, the both sides of the cut line are curved, so that the cut progresses to the side seal portion side. Can be prevented, and the side seal part is not torn and the self-supporting ability is not impaired.

  According to the fourth aspect of the present invention, when the bottom sheet is developed for forming the bottom surface, the bottom end of the score line is on the outer side in the width direction than the top end. Since the bottom extends along a straight line connecting both ends, the bottom can be spread more widely, and the packaging bag can be made more stable and free standing, and conversely, a force that acts on the top side of the packaging bag acts When the side seal portion which is inclined to the opened sheet side and which protrudes protruding falls to the strongly opened sheet side and the consumer grips the side seal portion so as to hold the side seal portion, the possibility of feeling pain can be further reduced.

Further, according to the invention as set forth in claim 5, when the consumer holds the side seal portion so as to sandwich the side seal portion by the side seal portions being inclined in mutually opposite directions at both end portions,
Even when grasped from either side of the back side sheet, the edge of the side seal portion is equally unlikely to hit the finger, and there is no need to worry about the grasping direction, and it is possible to provide a more efficient self-supporting packaging bag.

It is a schematic block diagram of the bottom seal part of the self-supporting packaging bag of this invention. It is sectional drawing of the notch part of the self-supporting packaging bag of this invention, and a conventional self-supporting packaging bag. It is a front perspective view of the self-supporting packaging bag of this invention. It is explanatory drawing which shows the aspect which the consumer grasped the self-supporting packaging bag of this invention. It is a figure which shows the form example of the score line of the self-supporting packaging bag of this invention. It is a figure which shows another example of a cut line of the self-supporting packaging bag of this invention. It is a front perspective view of another form of the self-supporting packaging bag of this invention. It is a figure which shows the example of another form of the notch part of the self-supporting packaging bag of this invention. It is sectional drawing which provided the cut line of the self-supporting packaging bag of this invention on the front and back. It is a front perspective view of the conventional self-supporting packaging bag.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not construed as being limited to the following embodiments. Moreover, in the following, the same code | symbol may be attached | subjected about an equivalent member and a site | part, and description may be abbreviate | omitted.

  FIG. 1 is a schematic configuration view of a bottom seal portion of the self-supporting packaging bag of the present invention, where the upper direction of the figure is the top side and the lower direction is the bottom side. In this embodiment, the bottom sheet 13 is folded between the front side sheet 11 and the back side sheet 12 at the bottom side of the packaging bag in an inverted V-shape, that is, a crease is on the top side, Are bonded together to form the side seal portion 15, and the bottom sheet 13 is sealed in the form of a bottom with the front side sheet 11 and the back side sheet 12 so as to expand to form the bottom surface to form the bottom seal portion 16. . Since the folded inner surfaces of the bottom sheet 13 generally do not have heat sealability, the notches 14 and 14 are provided at both ends and notched, and the front side sheet 11 and the back side sheet 12 are directly in contact and bonded .

  The notched portion 14 includes a region 14 a which is an extension of the side seal portion 15 and a region 14 b which bites further to the center side in the width direction, and both are provided in the bottom seal portion 16. And since it penetrates front side sheet 11 and cut line 17 and 17 which encloses from the center side of width direction to area 14b and 14b which cut into the center side of the cross direction of notch 14 and 14 is provided, it is a cut line The front sheet 11 is open at the portions 17 and 17. At this time, the top end (hereinafter referred to as the upper end) 171 a of the cutting line of the cutting line 17 and the end (hereinafter referred to as the lower end) of the bottom side are more than the area where the side seal section 15 is extended to the bottom It is on the center side in the width direction. When the end portion enters the extension area of the side seal portion 15, the distance from the side edge becomes too short, and the possibility of the score line reaching the side edge for some reason increases, and the packaging bag As compared with the side seal portion 15 which enhances the shape retention property when standing by itself, the bonding width at the notch portion 14 is narrowed, and there is a possibility that the shape retention property is lowered, which is not preferable.

  FIG. 2A is a schematic cross-sectional view at a portion of the line segment AA ′ of FIG. 1 and shows a portion of one notch 14. Although the bottom sheet 13 is sandwiched between the front side sheet 11 and the back side sheet 12, since the bottom sheet 13 is notched at the notch portion 14, the front side sheet 11 and the back side sheet 12 are directly bonded to each other. There is. Further, in the region 14b which bites in the center side in the width direction than the side seal portion 15 of the notch portion 14, the cut line 17 penetrates the front side sheet 11 and an opening 18 is formed. At this time, the score line 17 may cut through the part 13 a of the bottom sheet together with the front side sheet 11. Although the front side sheet 11 and the back side sheet 12 spread in the opposite direction along the shape of the developed bottom sheet 13 at places other than the opening 18, the front side sheet 11 is bonded to the back side sheet 12 at the opening 18. Therefore, the back sheet 12 faces in the same direction. Therefore, the area 14a on the extension of the side seal portion 15 on the outer edge side also faces the same direction as the back sheet 12. As a result, the area 14 a protrudes not obliquely rightward from the side end of the packaging bag but on the side of the front sheet 11 provided with the opening. And since the area | region 14a inclines, the whole side seal part 15 is drawn near to the area | region 14a, and inclines and protrudes similarly to the front side sheet | seat 11 side.

  On the other hand, as illustrated in FIG. 2B, in the conventional self-supporting packaging bag 100, a notch portion 104 in which the bottom sheet 103 is notched is formed in the bottom seal portion as well, There is no cut, and the front side sheet 101 and the back side 102 sheet are simply laminated at the notched portion 104 and protrude sideways, and also protrude sideways at the side seal portion as well, so when the consumer grips the side seal portion The hard edge 105 at the tip may hit the finger and cause pain.

  FIG. 3 is a front perspective view of the self-supporting packaging bag 10 of the present invention, which encloses from the center side in the width direction a region biting in the center side in the width direction of the notches 14 of both ends of the bottom seal 13. An incision line 17 penetrates the front side sheet 11 and an opening 18 is provided. The front side sheet 11 at the opening 18 is directly bonded in the same direction as the back side sheet 12 as described above, and is directly oriented in the same direction as the back side sheet 12, and the outer end is also front side. It protrudes in the aspect which inclined to the sheet | seat 11 side, and the whole side seal part 15 inclines and protrudes similarly to the front side sheet | seat 11 side.

  Therefore, when the consumer grips the side seal portion 15 so as to sandwich the self-supporting packaging bag of the present invention, the side seal portion 15 is inclined regardless of which side the front side sheet 11 or the back side sheet 12 holds. The hard edge does not hit the finger 20 and does not feel pain, but as shown in FIG. 4, if it is grasped from the side opposite to the inclined side, in this case from the back sheet 12 side, it will try to grasp There is no possibility of touching the edge even at the time, and work such as refilling can be performed more smoothly.

  As another effect of the present invention, as can be seen in FIG. 2, the front sheet 11 can be separated from the back sheet 12 at the opening 18, and the bottom sheet 13 can be expanded wider at the bottom side. Since the bottom surface can be formed wider, the stability when the packaging bag is made to stand is enhanced. Further, as shown in FIG. 4, when grasped, the fingertip can be hung from the side to the edge, which can prevent an accident such as slippage and removal of the packaging bag.

  FIG. 5 illustrates another form of the cutting line, and in the example shown in FIG. 5 (a), the upper end 171a and the lower end 171b of the cutting line are circular holes. In this way, for example, when a force is applied which further tears the cut line from the end by applying some force or impact to the packaging bag, for example, the force is dispersed by the hole and the tear does not proceed, and The tear does not progress to the side edge and the adhesion between the front side sheet and the back side sheet at the notch is separated, and the self-supporting property of the packaging bag is not impaired.

  Further, in the example shown in FIG. 5B, the upper end portion 171a and the lower end portion 171b of the cutting line are in a curved line shape. By doing this, the direction of the force and the direction of the cutting line will be different when a force is applied which further tears the cutting line from the end, for example by applying some force or impact to the packaging bag. Therefore, the score line is not further cut to the side edge side, the cut progresses to the side edge, and the adhesion between the front side sheet and the back side sheet at the notch portion is separated, and the packaging bag There is no possibility of losing independence.

FIG. 6 exemplifies another form of the cutting line, and the position of the lower end 171b is outside in the width direction with respect to the position of the upper end 171a of the cutting line. In this case, when the bottom sheet is expanded, the oblique line segments m and n connecting the upper end 171a and the lower end 171b restrict the expansion, and the packaging bag is expanded along this line Ru. And since these line segments m and n are extended so that the bottom part side becomes wide, the bottom side which a bottom sheet spreads and is formed becomes a form which spread more, and self-supporting property becomes more stable. While the bottom side spreads, conversely, the center side of the packaging bag is pressed by the line segments m and n, and it becomes a shape that turns to the center side.

  As a result, as shown by the white arrow in FIG. 7, the width of the packaging bag is widened at the bottom side, while a force is applied in the winding direction at the center side of the packaging bag, and a crease 19 is produced. The portion 15 folds in the direction of the front side sheet 11 originally inclined and falls more strongly to the front side sheet 11 side. Therefore, when the consumer grips the side seal portion 15 so that the hard edge is less likely to hit a finger or the like, the handling becomes easier.

  FIG. 8 exemplifies another form of the notch, and it may be formed in a shape divided into plural in the width direction like the notch 14c, and may be formed in the vertical direction like the notch 14d. It may be formed in a divided shape. Also, it is needless to say that the shape may be divided in both the width direction and the vertical direction. In any of the shapes, the cut line 17 surrounds the area of the notches 14c and 14d which is cut in the center in the width direction from the side seal parts from the center in the width direction.

  Although the above description has been given of the example in which the cut lines are provided on the front side sheet, it goes without saying that similar effects can be obtained even if the cut lines are provided on the back side sheet. Further, as shown in FIG. 9, the cut line 17 on one side can be provided on the front side sheet 11 and the cut line 17 on the other side can be provided on the back side sheet 12. In this case, since the side seal portions 15 protrude in the opposite direction to each other, they are held in the same way even if they are gripped from the front side sheet 11 side or from the back side sheet 12 side, they are held or changed in holding direction. There is no need to perform work such as refilling efficiently.

  As described above, according to the self-supporting packaging bag of the present invention, when the consumer grips the packaging bag, the hard edge is worn and the pain is felt and the refilling operation can not be performed smoothly. On the other hand, it is possible to provide a self-supporting packaging bag free of hard edges on fingers without requiring extra film material and special processing steps, and further to form a wide bottom and highly stable self-supporting packaging bag. It can be done.

10 ... self-supporting packaging bag 11 ... front side sheet 12 ... back side sheet 13 ... bottom sheet 14, 14c, 14d ... notch 14a ... area on the extension of the side seal part 14b · · · Region 15 bites into the center side · · · Side seal portion 16 · · · Bottom seal portion 17 · Cutting line 18 · · · Opening 19 · · · 20 finger · · · 171a upper end Section 171b ... lower end

Claims (5)

The front sheet and the back sheet are formed of one or more sheet materials, have a front sheet, a back sheet, and a bottom sheet, the front sheet and the back sheet face each other, and the reverse V-folded bottom sheet is the bottom side. The end edges of each sheet are sealed, the side seals are formed on both sides, and the bottom seal is formed at the bottom so that the bottom sheet can be developed on the bottom surface of the hook. A self-supporting packaging bag in which the front side sheet and the back side sheet are directly bonded by notches provided at both side ends,
In the notches at both end portions, a cut line surrounding a region on the center side in the width direction than the extension of the side seal portion of the notches penetrates the front side sheet or the back side sheet. A self-supporting packaging bag provided in the bottom seal portion, wherein the front side sheet or the back side sheet is opened by the cut line.   The self-supporting packaging bag according to claim 1, wherein both ends of the score line are circular or elliptical holes.   The self-supporting packaging bag according to claim 1, wherein both ends of the score line are curved.   The self-supporting packaging bag according to any one of claims 1 to 3, wherein the bottom end of the score line is located outside the top end in the width direction.   The self-standing packaging bag according to any one of claims 1 to 4, wherein the cut line is provided on one side end side on the front side sheet and on the other side end side on the back side sheet.