JP2013056698A - Packaging bag with measuring function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag with a measuring function that has a simple structure and can surely measure contents by simple operation and stably take out only a measured portion without soiling a hand.SOLUTION: The packaging bag 100 with the measuring function includes a bag body 10 formed with a storage chamber 13 by providing peripheral edge seal parts 12 at mutual peripheral edges of films facing each other to form a sidewall 11, and a spout 20 provided in the bag body 10. The storage chamber 13 includes a measuring chamber 14 reaching the spout 20; a main chamber 16 adjoining the measuring chamber 14 with a partition seal part 15 placed between; and a passage 17 allowing the flow of contents between the measuring chamber 14 and the main chamber 16. An end 15a of the partition seal part 15 intersects the peripheral edge seal part 12, and a folding guide line 40 is formed at the partition seal part 15.

Description

  The present invention relates to a packaging bag with a weighing function capable of weighing contents without using a dedicated weighing container and taking out the measured amount.

  Conventionally, a packaging bag with a weighing function has been proposed (see, for example, Patent Documents 1 to 3). Patent Document 1 proposes a pouch with a measuring function in which the inside of the pouch is divided into a storage chamber, a measuring chamber, and a discharge chamber by a first partition member and a second partition member made of a film having the same width as the pouch. In the measurement with this pouch, the pouch is first turned upside down, and the contents flow into the measurement chamber from the storage chamber and a predetermined amount is weighed.When the pouch is raised, the contents in the measurement chamber flows into the discharge chamber, and the pouch is again opened. When inverted, the contents of the discharge chamber are poured out of the pouch from the spout. Patent Document 2 is a bag body with a fastener, and includes a measuring part adjacent to the fastener and a storage part adjacent to the measurement part, and the measurement part and the storage part are partitioned by an adhesive part, and are extended from the storage part to the measurement part. A package having an amount setting area whose width is narrower than that of the storage unit has been proposed. In this weighing with the package body, the entire bag body is turned upside down, the contents are guided from the storage section to the weighing section, and the contents that have entered the communication path are removed, while the bag body is placed on a folding line provided in the communication path. After folding along, the fastener is opened and the contents in the measuring section are discharged to the outside. Patent Document 3 proposes a liquid packaging bag in which a hollow metering portion is provided on the base end side of the dispensing passage. The liquid packaging bag is measured by hanging the bag upside down, cutting the corner portion, opening the tip of the outflow passage, and manually squeezing or squeezing the fluid in the hollow metering portion.

JP 2001-122360 A JP 2004-306985 A JP 2002-193282 A

  In the pouch described in Patent Document 1, the first partition member is bonded to the surface material at the lower side, the upper side is bonded to the back surface material, the second partition material is bonded to the back surface material at the upper side, and the first partition is bonded to the lower side. Since the inside of the pouch is partitioned by bonding to the material, the bonding is complicated, the productivity is poor, and it is not practical as a container for mass-produced products such as detergents, seasonings and foods. When the pouch described in Patent Document 2 is folded along the folding line, the opening portion faces downward, so that the contents flow out simultaneously with the opening of the opening portion, and there is a problem that the hands are soiled by the content portion. In the liquid packaging bag described in Patent Document 3, when the volume of the hollow fixed portion is increased, a large pressure is required for manual squeezing or ironing, and the content supply operation becomes difficult.

  An object of the present invention is to provide a packaging bag with a weighing function that has a simple structure, reliably measures the contents with a simple operation, and can stably take out the measured amount without soiling the hands. Is to provide.

  A packaging bag with a weighing function according to the present invention includes a bag body formed by providing a peripheral seal portion at the periphery of films facing each other as side walls to form a storage chamber, and a spout provided in the bag body, A storage chamber, a measuring chamber that communicates with the spout, a main chamber adjacent to the measuring chamber with a partition seal, and a passage that enables the contents to flow between the measuring chamber and the main chamber; In the packaging bag with a weighing function, the end of the partition seal portion intersects with the peripheral seal portion, and a bending guide line is formed in the partition seal portion.

  In the packaging bag with a weighing function according to the present invention, the bag body preferably has a self-supporting bottom wall. It can be stored upright and the handling and appearance can be improved.

  In the packaging bag with a measuring function according to the present invention, it is preferable that an inner angle on the main chamber side formed by the partition seal portion and the peripheral seal portion exceeds 90 °. The contents easily move from the main room to the measuring room, and the contents moved to the measuring room do not easily return to the main room.

  In the packaging bag with a measuring function according to the present invention, the width of the passage is preferably 5 to 20 mm. Weighing can be performed easily and accurately. Further, since the contents easily move from the main room to the measuring room, and the contents moved to the measuring room are difficult to return to the main room, the contents can be stably taken out by the measured amount.

  In the packaging bag with a measuring function according to the present invention, the peripheral seal portion has a cutout portion that cuts into the storage chamber, and the end portion of the partition seal portion intersects with the deepest portion of the cutout portion. preferable. Even if it is difficult to visually distinguish the partition seal part by printing on the bag body, etc., the position of the folding guide line can be easily identified using the notch as a mark, and the folding guide line is aligned. Bending can be further facilitated.

  In the packaging bag with a measuring function according to the present invention, it is preferable that the bending guide wire has tear propagation preventing means at an end portion. Damage to the packaging bag can be prevented.

  It is preferable that the packaging bag with a measuring function according to the present invention has a hanging means on the peripheral edge. Weighing can be performed more easily.

  In the packaging bag with a measuring function according to the present invention, it is preferable that a measuring line is attached to the film forming the measuring chamber. The range of quantity that can be measured can be widened.

  The present invention provides a packaging bag with a weighing function that has a simple structure, reliably measures the contents with a simple operation, and can stably take out the measured amount without soiling the hands. be able to.

It is a front view which shows an example of the packaging bag with a measurement function which concerns on this embodiment. It is a figure which shows the modification of a bending induction line, (a) shows the form that a bending induction line is a dotted line, (b) shows the form that a bending induction line is an emboss. It is a figure for demonstrating the usage method of the packaging bag with a measurement function which concerns on this embodiment, and is a figure which shows the state at the time of inflowing the contents into a measurement chamber. It is a figure for demonstrating the usage method of the packaging bag with a measurement function which concerns on this embodiment, and is a figure which shows the state into which the full content flowed into the measurement chamber. It is a figure for demonstrating the usage method of the packaging bag with a measuring function which concerns on this embodiment, and is a figure which shows the state folded along the bending guide line. It is a figure for demonstrating the usage method of the packaging bag with a measurement function which concerns on this embodiment, and is a figure which shows the state at the time of the extraction of the measured content.

  Next, the present invention will be described in detail with reference to embodiments, but the present invention is not construed as being limited to these descriptions. As long as the effect of the present invention is exhibited, the embodiment may be variously modified.

  FIG. 1 is a front view showing a first example of a packaging bag with a weighing function according to the present embodiment. The packaging bag 100 with a weighing function according to the present embodiment is provided with a bag body 10 and a bag body 10 in which a peripheral seal portion 12 is provided at the periphery of mutually facing films that form the side wall 11 to form a storage chamber 13. A measuring chamber 14 having an outlet 20, a storage chamber 13 communicating with the spout 20, a main chamber 16 adjacent to the measuring chamber 14 with a partition seal 15 therebetween, and the measuring chamber 14 and the main chamber 16. In a packaging bag with a weighing function having a passage 17 that allows the contents to flow, the end 15a of the partition seal portion 15 intersects with the peripheral seal portion 12, and a bending guide wire 40 is formed in the partition seal portion 15. Do it.

  The bag body 10 has two side walls 11 that are stacked face to face. The front and back two side walls 11 may be formed by stacking separate films facing each other, or by folding a series of films at substantially the center or both end edges and stacking facing each other. As a form example (not shown) of the bag body 10 including the two side walls 11 on the front and back sides, there are a four-side seal bag, a three-side seal bag, and a pillow packaging bag.

  In the packaging bag with a weighing function 100 according to the present embodiment, as shown in FIG. 1, the bag body 10 preferably further has a self-supporting bottom wall 19 as shown in FIG. 1. By having the self-supporting property, the bag body 10 can be stored upright, and the handleability can be improved. In addition, the appearance can be improved. When the front and back side walls 11 are separate films, the bottom wall 19 is a separate film that is folded between the front and back side walls, or when the front and back side walls are a series of films. Is a portion where the folded portion is folded inward. Examples of the form of the bag body 10 including the two front and back side walls 11 and the self-supporting bottom wall 19 include a standing pouch as shown in FIG. 1, for example, a gusset bag (not shown).

  The material of the film forming the side wall 11 or the bottom wall 19 is not particularly limited. For example, high-density polyethylene (HDPE), medium-density polyethylene (MDPE), low-density polyethylene (LDPE), linear low-density polyethylene ( LLDPE), polyolefins such as polypropylene (PP), ethylene-acrylic acid copolymers, ethylene-vinyl acetate copolymers (EVA), ethylene-vinyl alcohol copolymers (EVOH), ethylene-vinyl chloride copolymers, etc. Styrene resins such as ethylene-vinyl compound copolymer, polystyrene acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer (ABS), methyl methacrylate-styrene copolymer, polyvinyl chloride (PVC), poly Polyvinylidene chloride (PVDC) Vinyl compounds, nylon 6, nylon 6-6, nylon 6-10, nylon 11, nylon 12, polyamides such as metaxylenediamine (MXD nylon), polyesters such as polyethylene terephthalate (PET), polybutylene terephthalate, polycarbonate, ionomer (IO). These may be used alone or in combination of two or more. Moreover, you may contain adjuvants, such as a slip agent and an antiblocking agent.

  In addition to the film material described above, for example, (1) metal foil such as aluminum foil, (2) vapor deposition layer such as silicon oxide and aluminum oxide, (3) paper, (4) cellophane or (5) epoxy resin, An adhesive layer or an anchor coat layer containing a urethane resin or the like may be further laminated.

  The method for producing the film is not particularly limited, and the film can be produced by a known method such as an inflation method, a T-die method, an extrusion lamination method, or a dry lamination method. Although there is no restriction | limiting in particular in the thickness of a film, For example, it is preferable that it is 10-300 micrometers. More preferably, it is 60-120 micrometers.

  The film may be either a single layer film or a laminated film. The laminated film preferably has a base film layer disposed outside the bag body 10 and a sealant layer disposed inside the bag body 10. Of the film materials described above, the base film layer is preferably polyamide or polyester, and is biaxially oriented polyamide (OPA), biaxially oriented polyethylene terephthalate (OPET), or biaxially oriented polypropylene (OPP). Is more preferable. Of the above-described film materials, the sealant layer is preferably polyolefin, and more preferably LLDPE, unstretched polypropylene (CPP), EVA, or IO. The base film layer or the sealant layer may be formed as a single layer or may be formed as two or more layers. Moreover, it is preferable to provide a gas barrier layer between the base film layer and the sealant layer for the purpose of preventing deterioration of the contents. The gas barrier layer is preferably, for example, EVOH, PVDC, or MXD nylon among the above-described film materials, or a metal foil or a vapor deposition layer that can be used other than the above-described film materials. The present embodiment is not limited to the film material and the laminated structure. The front and back side walls 11 are usually formed using films having the same material and a laminated structure, but the front and back side walls 11 may be formed using films having different materials and a laminated structure. Further, the bottom wall 19 may be formed using a film having the same material and laminated structure as the side wall 11, or may be formed using a film having a different material and laminated structure.

  On the periphery of the side wall 11, a peripheral seal portion 12 is provided by bonding two front and back films. In the packaging bag 100 with a weighing function shown in FIG. 1, the peripheral seal portion 12 includes an upper edge seal portion 12 a provided at the upper edge of the bag body 10 and a bottom edge seal portion provided at the lower edge of the bag body 10. 12b, a left edge seal portion 12c provided at the left edge of the bag body 10, a right edge seal portion 12d provided at the right edge of the bag body 10, and an upper corner of the bag body 10 are chamfered, and the spout 20 is formed. And an inclined seal portion 12e provided. In the present embodiment, the peripheral edge where the peripheral seal portion 12 is provided is not limited to the form shown in FIG. 1 as long as the storage chamber 13 capable of storing the contents can be formed inside the bag body 10.

  The shape of the peripheral seal portion 12 is not particularly limited. For example, as shown in FIG. 1, the shape is a straight shape, a curved shape, a wavy shape, a shape having a concave portion or a convex portion, or a combination thereof. is there. The width of the peripheral seal portion 12 is not particularly limited, but is preferably 2 to 20 mm. More preferably, it is 5-10 mm. Examples of the method for forming the peripheral seal portion 12 include a heat sealing method such as heat fusion, high frequency fusion or ultrasonic fusion, a method of bonding using an adhesive or an adhesive material such as an adhesive sheet, or a chuck. This is a method of sealing using a fitting tool.

  The storage chamber 13 is an internal space of the bag body 10 formed by being surrounded by the peripheral seal portion 12. The storage chamber 13 includes a weighing chamber 14, a main chamber 16, and a passage 17.

  The measuring chamber 14 is a space that leads to the spout 20 and has the same volume as the quantity to be quantified. FIG. 1 shows a mode in which the volume of the measuring chamber 14 is 30 ml as an example. In the packaging bag 100 with a measuring function according to the present embodiment, it is preferable that a measuring line 34 is attached to the film forming the measuring chamber 14 as shown in FIG. The measuring line 34 is a scale for measuring the volume of the contents in the measuring chamber 14 and can widen the amount of the measurable amount such as one and a half. The method for attaching the measuring line 34 is not particularly limited, but is, for example, printing or embossing. The measuring line 34 is not limited to the form shown in FIG. 1 as long as it can measure the liquid level in the measuring chamber 14.

  The main chamber 16 is a space provided adjacent to the measuring chamber 14 with the partition seal portion 15 interposed therebetween, and stores the contents before measurement.

  The passage 17 is a non-seal portion provided side by side with the partition seal portion 15 along the boundary between the measurement chamber 14 and the main chamber 16, and allows the contents to flow between the measurement chamber 14 and the main chamber 16. And In the packaging bag 100 with a measuring function according to the present embodiment, the width w1 of the passage 17 is preferably 5 to 20 mm. More preferably, it is 10-15 mm. By making the width w1 of the passage 17 within this range, the contents can be smoothly distributed, and the contents moved to the measuring chamber 14 can be prevented from flowing back to the main chamber 16, thereby making the measuring operation easier. In addition, the accuracy of weighing can be further increased. Here, the width w1 of the passage 17 is the shortest distance between the portion opposite to the end 15a of the partition seal portion 15 and the peripheral seal portion 12, and in FIG. This is the shortest distance between the opposite end 15b and the upper edge seal portion 12a.

  The partition seal portion 15 is a portion where the films to be the two side walls 11 on the front and back sides are bonded to each other in order to divide the storage chamber 13 vertically, horizontally, or diagonally leaving the passage 17. As shown in FIG. 1, the partition seal portion 15 has, for example, a curved line shape or a wavy line shape in addition to a linear shape when viewed from the front. As the method for forming the partition seal portion 15, the method exemplified in the method for forming the peripheral seal portion 12 can be applied.

  In the present embodiment, the end 15 a of the partition seal portion 15 intersects the peripheral seal portion 12. Preferably, the peripheral edge seal portion 12 intersects either the left side edge seal portion 12c or the right side edge seal portion 12d. In FIG. 1, the partition seal part 15 showed the form which cross | intersects the left side edge seal part 12c. Since the end 15a of the partition seal portion 15 intersects the peripheral seal portion 12, the passage 17 becomes one, and the movement of the contents from the main chamber 16 to the measuring chamber 14 can be made one route. It can be performed easily and accurately.

  In the packaging bag 100 with a measuring function according to the present embodiment, it is preferable that the inner angle θ1 on the main chamber 16 side formed by the partition seal portion 15 and the peripheral seal portion 12 exceeds 90 °. θ1 is more preferably 100 ° to 170 °, and particularly preferably 135 ° to 150 °. By setting it as this range, the contents easily move from the main chamber 16 to the measuring chamber 14, and the contents moved to the measuring chamber 14 are difficult to return to the main chamber 16. As a particularly preferred embodiment, as shown in FIG. 1, the partition seal portion 15 intersects the left edge seal portion 12c (or the right edge seal portion 12d) of the peripheral seal portion 12, and the partition seal portion 15 and the left edge The internal angle θ1 on the main chamber 16 side formed by the seal portion 12c (or the right-side edge seal portion 12d) exceeds 90 °. In this embodiment, the contents can be more easily moved from the main chamber 16 to the measuring chamber 14, and the contents moved to the measuring chamber 14 can be further prevented from returning to the main chamber 16. When the bag body 10 has the inclined seal portion 12e, the partition seal portion 15 is preferably provided in parallel with the inclined seal portion 12e.

  The partition seal portion 15 has a bending guide wire 40 in the region. The bending guide line 40 is preferably linear as shown in FIG. Although FIG. 1 shows a form in which the bending guide line 40 passes through the approximate center of the partition seal portion 15, the present embodiment is not limited to this, and is closer to the measuring chamber 14 side or the main chamber 16 side than the approximate center. It may be formed by shifting.

  In the packaging bag 100 with the weighing function shown in FIG. 1, the broken line type bending guide line 40 in which a linear cut 40 a is formed at a predetermined interval is shown. It is only necessary to be able to weaken the rigidity, and is not limited to the form shown in FIG. 2A and 2B are diagrams showing a modification example of the bending guide line. FIG. 2A shows a form in which the bending guide line is a dotted line, and FIG. 2B shows a form in which the bending guide line is embossed. As shown in FIG. 2 (a), as a modification example of the bending guide line, a dotted type bending guide line 41 in which dotted cuts 41a are formed at predetermined intervals, as shown in FIG. 2 (b). , An embossed type bending guide line 42 in which a depression is formed, or a half-cut type bending guide line (not shown) cut by leaving a part in the thickness direction of the film.

  In the packaging bag 100 with a measuring function according to the present embodiment, it is preferable that the bending guide wire 40 has the tear propagation preventing means 32 at the end. As the end portion of the bending guide wire 40, there are an end portion on the side of the passage 17 and an end portion on the part side that intersects the peripheral seal portion 12 of the partition seal portion 15. The tear propagation preventing means 32 is more preferably provided at least at the end portion on the side of the passage 17, and is particularly preferably provided at both ends of the bending guide wire 40 as shown in FIGS. By providing the tear propagation preventing means 32, it is possible to prevent the tear from reaching the bag body 10 even if the bending guide wire 40 is cut by any chance. The shape of the tear propagation preventing means 32 is not particularly limited, but is, for example, a semicircular cut shown in FIG. 2A in addition to the circular hole shown in FIG.

  In the packaging bag 100 with the weighing function according to the present embodiment, the peripheral seal portion 12 has a cutout portion 33 cut into the storage chamber 13, and the end portion 15 a of the partition seal portion 15 is the deepest portion of the cutout portion 33. It is preferable to intersect with (vertex) 33a. By providing the notch 33 and aligning the end portion 15a of the partition seal portion 15 with the deepest portion 33a of the notch portion 33, the partition seal portion 15 is visually discriminated by printing on the bag body 10 or the like. Even if it is difficult, the position of the bending guide line 40 can be easily identified using the notch 33 as a mark, and the bending along the bending guide line 40 can be further facilitated. The shape of the notch 33 is, for example, a U shape or an arc shape in addition to a V shape as shown in FIG.

  The spout 20 is a portion for pouring the contents. The position where the spout 20 is provided only needs to communicate with the measuring chamber 14, and may be the peripheral seal portion 12 of the measuring chamber 14 or the side wall 11 of the measuring chamber 14. Among these, it is more preferable to provide in the peripheral seal part 12 of the measurement chamber 14, and it is still more preferable to provide in the upper edge seal part 12a or the inclination seal part 12e, and the spout 20 can be stored in the outer shape of the bag body 10. In this respect, it is particularly preferable to provide the inclined seal portion 12e. It does not matter whether the spout 20 is formed separately from the bag body 10 or formed integrally. In FIG. 1, a form in which a separate spout is mounted as the spout 20 is shown, but as another form, a non-seal part is provided in the peripheral seal part 12 and the non-seal part is used as a spout. The flow path formed by adhering the films to be the two side walls 11 of the front and back is a spout. A method for attaching a separate spout as the spout 20 to the bag body 10 is not particularly limited. For example, a heat sealing method such as heat fusion, high frequency fusion or ultrasonic fusion, an adhesive or an adhesive sheet, or the like. This is a method of bonding using the secondary material.

  The spout 20 preferably has a cap 21. By having the cap 21, the weighing operation becomes easy. Moreover, deterioration of the contents can be prevented. The method for attaching the cap 21 is not particularly limited, and examples thereof include a method by Rago, a method for attaching via a hinge, and a method for fitting by fitting. In addition, this embodiment is not restrict | limited to the form of the spout 20.

  It is preferable that the packaging bag 100 with a weighing function according to the present embodiment has the hanging means 31 on the periphery. The hanging means 31 is, for example, a form for attaching a hanging tool such as a hole or a cut (not shown) as shown in FIG. 1 or a handle (not shown) or a hook (not shown) itself. It is a form to become a tool. The suspending means 31 is preferably provided on the lower edge seal portion 12b. By providing the suspending means 31 in the lower edge seal portion 12b, the contents are automatically moved from the main chamber 16 to the measuring chamber 14 when the measuring function packaging bag 100 is suspended. The tilting operation can be omitted. Moreover, since the spout 20 faces upward when it is bent along the bending guide line 40 after weighing, it is possible to prevent contents from spilling even if the spout is opened.

  The content is not particularly limited as long as it has fluidity, and includes liquid or solid (powder). Examples of the liquid include diluted beverages such as liqueur and syrup, liquid seasonings such as soy sauce and mirin, liquid detergents, softeners, liquid bath agents, lotions, and emulsions. Examples of the solid include powder processed foods such as instant coffee and powder seasonings such as sugar and salt.

  Next, the usage method of the packaging bag 100 with a measuring function which concerns on this embodiment is demonstrated.

  FIG. 3 is a view for explaining a method of using the packaging bag with a weighing function according to the present embodiment, and is a view showing a state when the contents flow into the weighing chamber. As shown in FIG. 3, when the packaging bag 100 with the weighing function is set so that the passage 17 is positioned below the main chamber 16, the contents move from the main chamber 16 to the weighing chamber 14.

  FIG. 4 is a diagram for explaining a method of using the packaging bag with a weighing function according to the present embodiment, and shows a state where a full amount of contents has flowed into the weighing chamber. When the measuring chamber 14 is filled with the full content (for example, 30 ml), the measuring chamber 14 swells as shown in FIG. And since the division | segmentation seal | sticker part 15 is provided with the bending induction line 40 and is in the state which is easy to bend, it will be in the state bent a little along the bending induction line 40 naturally. Further, by setting the width w1 of the passage 17 to preferably 5 to 20 mm, more preferably 10 to 15 mm, the side walls 11 are brought into close contact with each other in the passage 17 and the backflow of the measured contents can be suppressed.

  If the packaging bag 100 is suspended using the suspending means 31, the full content always flows into the measuring chamber 14, so that the next operation can be performed immediately.

  FIG. 5 is a diagram for explaining a method of using the packaging bag with a weighing function according to the present embodiment, and shows a state of being folded along a folding guide line. Next, as shown in FIG. 5, it is further bent by hand along the bending guide line 40 to reliably prevent backflow of the weighed contents. Further, as described above, when the inside of the measuring chamber 14 is filled with a predetermined amount of contents, the bending guide wire 40 is in a state of being naturally bent, and thus can be easily bent.

  FIG. 6 is a diagram for explaining a method of using the packaging bag with a weighing function according to the present embodiment, and is a diagram showing a state at the time of dispensing the weighed contents. Finally, the spout 20 is opened (in FIG. 6, it is opened by removing a cap (not shown) that is joined together), and the weighed contents are poured out of the packaging bag 100. In FIG. 6, although the form which performs pouring operation in the state which turned the packaging bag 100 upside down was shown, it is not limited to this, The packaging bag 100 is an original state (state where the lower edge seal part 12b is located below) The pouring operation may be performed after returning to. Thereafter, while maintaining the bent state, the cap (not shown) is closed and the spout 20 is closed. Since the bag body 10 is made of a soft wrapping material, it is difficult for air to enter and deterioration of the contents can be prevented. As described above, when the packaging bag 100 with the weighing function according to the present embodiment is used, the contents can be reliably measured by a simple operation without using a dedicated measuring container, and the measured amount can be stably taken out. it can. A series of weighing operations may be performed by suspending the packaging bag 100 using the suspending means 31.

  Up to this point, the method of measuring the full amount has been described, but when it is desired to measure less than the full amount, a measuring line 34 is attached to the film forming the measuring chamber 14, and the measuring line 34 indicating the amount to be measured is displayed on the measuring line 34. When the surfaces are brought together, a desired amount can be measured by folding along the bending guide line 40 and closing the passage 17.

DESCRIPTION OF SYMBOLS 10 Bag main body 11 Side wall 12 Peripheral seal part 12a Upper edge seal part 12b Lower edge seal part 12c Left edge seal part 12d Right edge seal part 12e Inclined seal part 13 Storage chamber 14 Weighing chamber 15 Compartment seal part 15a End part of a partition seal part 15b End 16 opposite to the partition seal portion 16 Main chamber 17 Passage 19 Bottom wall 20 Spout 21 Cap 31 Hanging means 32 Tear propagation preventing means 33 Notch 33a Notch deepest part 34 Measuring lines 40, 41, 42 Bending guide wire 40a Linear cut 41a Dotted cut 100 Packaging bag w1 with weighing function Passage width θ1 Inner angle on the main chamber side formed by the partition seal portion and the peripheral seal portion

Claims (8)

Provided with a bag body formed by forming a storage chamber by providing a peripheral seal part at the periphery of the films facing each other as a side wall, and a spout provided in the bag body,
The storage chamber is a measurement chamber that communicates with the spout, a main chamber that is adjacent to the measurement chamber with a partition seal portion, and a passage that allows the contents to flow between the measurement chamber and the main chamber. In a packaging bag with a weighing function,
The end of the partition seal part intersects the peripheral seal part,
A packaging bag with a weighing function, wherein a folding guide wire is formed in the partition seal portion.   The packaging bag with a weighing function according to claim 1, wherein the bag body has a self-supporting bottom wall.   The packaging bag with a weighing function according to claim 1 or 2, wherein an inner angle on the main chamber side formed by the partition seal portion and the peripheral seal portion exceeds 90 °.   The packaging bag with a weighing function according to any one of claims 1 to 3, wherein a width of the passage is 5 to 20 mm. The peripheral seal portion has a notch cut into the housing chamber;
The packaging bag with a weighing function according to any one of claims 1 to 4, wherein an end portion of the partition seal portion intersects with a deepest portion of the notch portion.   The packaging bag with a weighing function according to any one of claims 1 to 5, wherein the bending guide wire has tear propagation preventing means at an end portion.   The packaging bag with a weighing function according to any one of claims 1 to 6, further comprising a suspending means on the periphery.   8. A packaging bag with a weighing function according to claim 1, wherein a weighing line is attached to the film forming the weighing chamber.

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