JP6031885B2 - Refill bag - Google Patents

Description

  The present invention belongs to the technical field of a pouch for hermetically packaging a liquid content having fluidity, and particularly relates to a refill bag for transferring the stored content liquid to a container such as a bottle during use.

  In general, household liquid detergents are sold at stores, etc. in plastic bottles with spouts that are convenient for handling. However, these plastic bottles are not discarded once. Refill bags containing liquid detergent for replenishment are also sold at the same time. As this refill bag, many types of bags in which a nozzle-shaped spout is provided, the tip of the spout is cut off, and then inserted into the mouth of the bottle to inject the content liquid are commercially available.

JP 2005-187046 A

  Patent Document 1 proposes a refill bag in which the opening characteristics of the spout are improved by providing concave embossing on both sides of the pouring channel forming part, but the channel is sandwiched between the concave embossing. Since there is only a portion, there is a problem that the flow rate of liquid that can be dispensed at a time is small.

  The present invention has been made in view of such circumstances, and an object of the present invention is to easily hold the spout at the mouth of the bottle, and the liquid that is poured out while the inserted spout is not blocked. It is in providing the refill bag which can enlarge the flow volume of.

The invention according to claim 1 is formed of a bag having front and back surfaces, and a spout whose periphery is heat-sealed is provided at any one of the upper corners of the bag body, and the spout is opened at a portion to be opened. By the way, it is a refill bag that is used to cut out and then insert it into the bottle's mouth and pour the content liquid into the bottle, with notches on both sides of the spout, facing each other on the front and back sides in two sets of straight linear depression formed is, note provided from the point of the spout seal portion side of the base portion near the outlet to include more than half and bag body so as not to intersect towards the bag body , the bag body side of the ends of two pairs of linear recesses are connected in a different recess, the recess of the cross-sectional shape is characterized by a trapezoidal or arcuate or multi-stage der Rukoto.

The invention described in claim 2 is characterized in that, in the invention described in claim 1 , two sets of linear recesses are parallel to each other .

Since the invention according to claim 1 is provided with notches on both sides of the spout, there is an advantage that it can be easily held in a state where it is inserted into the mouth of the bottle, and the refilling operation can be easily performed. Since there are two sets of linear recesses formed in a state facing the front and back surfaces from the location near the spout seal near the base to the bag body, the contents are shown with the spout inserted into the mouth of the bottle When liquid is poured out, the flow rate and flow rate of liquid from both notches to the spout are suppressed, and the amount of liquid entering the spout is suppressed, thus preventing the spout from being blocked. In addition, since the recess is not provided except in the vicinity of the base of the spout, a sufficient discharge flow path is ensured, and the flow rate and flow velocity of the liquid to be poured can be increased. Furthermore, since two sets of linear recesses are connected by another recess, the flow rate and flow rate of liquid from both notches to the spout are more controlled, and the amount of liquid entering the spout is more It is suppressed.

It is a front view which shows an example of the refill bag which concerns on 1st Embodiment of this invention. It is sectional drawing in the AA of FIG. It is a partially expanded view of the vicinity of the spout in the refill bag of FIG. It is explanatory drawing which shows a mode that the surface of a front and back swells in the vicinity of a spout at the time of the pouring of a content liquid in comparison with a prior art example. It is explanatory drawing which shows the modification of the linear recessed part in the refill bag of FIG. It is sectional drawing which shows the modification of the refill bag shown in FIG. It is sectional drawing which shows another modification of the refill bag shown in FIG. It is sectional drawing which shows another modification of the refill bag shown in FIG. It is a front view which shows an example of the refill bag which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the modification of the refill bag shown in FIG. It is sectional drawing which shows another modification of the refill bag shown in FIG. It is a front view which shows an example of the refill bag which concerns on 3rd Embodiment of this invention. It is explanatory drawing for demonstrating the dimension of the refill bag used in the Example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
FIG. 1 shows a refill bag according to a first embodiment of the present invention, and this refill bag P is a so-called long-long combination of two folded bottom portions 2 between front and back wall films forming the body portion 1. Made in a standing pouch form. That is, the gusset-type bottom portion 2 in which the film is folded inward is provided with a semicircular cutout 2a in the vicinity of the lower ends on both sides, and is folded in two between the two wall film forming the body portion 1. The refill bag P of FIG. 1 is made by heat sealing with a bottom seal portion 3 having a boat bottom shape and heat sealing with a trunk seal portion 4 along the left and right edges.

  In the refill bag P, a spout 10 is formed integrally with the bag main body at one upper corner of the refill bag P. On both sides of the spout 10, an upper side cutout 11 and a side cutout 12 are provided, respectively, and an opening planned portion 5 for cutting out the vicinity of the tip is provided. The notch 6 is formed in the part, that is, the cutout 11 on the upper side.

  In the refill bag P as the scheduled opening portion 5 of the spout 10, a half-cut line formed by laser processing is provided. Instead of laser processing, a planned opening portion 5 made of a half-cut line formed with a cutter such as a rotary die cutter may be provided, or a scheduled opening portion 5 may be provided by printing on the premise of cutting with scissors or the like. Also good. Further, by taking a method of laminating a uniaxially stretched film in a laminated film of a pouch (in this case, the uniaxially stretched film is used so that its stretching direction coincides with the planned opening portion 5), it is possible to improve the opening property. it can. A plurality of half-cut lines may be provided.

  Further, in this refill bag P, two sets of linear recesses 20 formed so as to face each other on the front and back surfaces intersect from the portion near the base portion of the spout 10 near the spout toward the bag body. It is provided so that more than half is included in the bag body. That is, as shown in FIG. 2, the linear recesses 20 are provided symmetrically on the front and back films F so as to be in the same position on the front and back sides, and two sets are formed in parallel. In addition, a recessed part refers to the thing of the shape dented toward the inner side from the outer side of the bag.

  The linear recess 20 preferably has a width W of 3 to 10 mm, and more preferably 4 to 7 mm. If the width W of the recess 20 is smaller than 3 mm, it is difficult to control the flow rate and flow velocity of the liquid entering from the shoulder toward the spout 10, and if it is greater than 10 mm, wrinkles are likely to occur when the recess 20 is formed. . Further, the depth of the linear recess 20 is preferably 1 to 8 mm, and more preferably 3 to 4 mm for the same reason.

  Moreover, as shown in FIG. 3, the shortest distance S of the recessed part 20 provided in one surface is preferably 5 mm or more, and more preferably 10 mm or more. If the shortest distance S between the recess 20 and the recess 20 is smaller than 5 mm, the flow rate of the liquid entering from the bag body toward the spout 10 is reduced, and the pouring time is increased.

  Here, the base of the spout 10 will be described with reference to FIG.

  According to FIG. 3, the spout 10 is between the notch 11 on the upper side and the notch 12 on the side, and the periphery is sealed with the spout seal portion 10 a, and the spout seal portion 10 a It is connected to the upper side via the shoulder seal portion 11a on the upper side and is connected to the side via the shoulder seal portion 12a on the side. Therefore, the base portion of the spout 10 is the intersection of the inner seal line of the spout seal portion 10a and the inner seal line of the shoulder seal portion 11a on the upper side, the inner seal line and the side of the spout seal portion 10a. It shall refer to the portion corresponding to the line L connecting the intersection with the inner seal line of the shoulder seal portion 12a. Accordingly, the region of the spout 10 refers to a region from the base of the spout 10 to the tip of the spout 10, and the bag body refers to a region that does not include the spout 10 from the base of the spout 10, that is, in the bag. The area excluding the area of the outlet 10 is indicated.

  As described above, the refill bag P of the present invention forms the recess 20 so that more than half of the bag body is included. However, in order to discharge liquid stably, the recess 20 has 3 in the region of the bag body. It is preferable to form so that 2 or more of a part is contained.

  Moreover, the refill bag P of this invention can form the recessed part 20 so that it may go to the bag main body from the part of the base part vicinity of the spout 10, and the both sides of the spout 10, as shown in FIG. preferable. By arranging the two sets of linear recesses 20 in this way, the flow rate and flow rate of the liquid from both the notches 11 and 12 toward the spout 10 can be further suppressed.

In the refill bag P of the first embodiment, as shown in FIG. 3, the end E ₁ on the spout side in the linear recess 20 is located in the region of the spout 10. In the case of this type, the distance L ₁₁ from the base of the spout 10 to the end E ₁ of the recess 20 is preferably 8 mm or less, more preferably 5 mm or less. If it is 8 mm or more, the volume of the spout 10 is reduced, and the flow rate of liquid that can be poured out at a time is reduced.

Further, spout seal portion 10a of the inner seal shortest distance D from the line to the recess 20 ₁₁ is preferably 5mm or less 3mm or more. If it is less than 3 mm, wrinkles are likely to occur when the recess 20 is formed, and if it is greater than 5 mm, it becomes difficult to control the flow rate and flow rate of the liquid entering from the shoulder toward the spout. Then, as described above, the concave portion 20 and the shortest distance S between the recesses 20, the shortest distance D ₁₁ 2 present linear recess 20 to be longer than from the spout seal portion 10a to the recess 20 It is preferable to arrange.

Also, note the relationship between the distance L ₁₁ from the base of the outlet 10 to the end portion E ₁ of the distance L ₁₂ and the recess 20 up to the opening piece 5 is preferably set to L ₁₁ ≦ L _12/3. When L ₁₁ is 1/3 or more of L ₁₂ , the volume of the spout 10 decreases, and the flow rate of liquid that can be poured at a time is reduced.

  The refill bag P shown in FIG. 1 is in the form of a stand-up pouch that is self-supporting by being filled with a content liquid such as a detergent and sealing the upper seal portion 7 by degassing and sealing. When the content liquid is transferred to the bottle, the opening portion 5 is torn and opened from the notch 6 with the tip of the spout 10 sandwiched between the fingertips. By this operation, the tip of the spout 10 is removed and a nozzle-shaped spout is formed.

  This refill bag P inserts the spout 10 with its tip cut off into the mouth of the bottle in order to transfer the content liquid to the bottle. At this time, since the notches 11 and 12 are provided on both sides of the spout 10, it is easy to hold it while being inserted into the mouth of the bottle.

  And in order to transfer the contents liquid to the bottle, when the contents liquid is poured out with the spout 10 inserted into the mouth of the bottle, it has notches on both sides of the spout 10 and is provided with a recess 20. In the case of a conventional refill bag, a large amount of liquid flows from the cutouts on both sides toward the spout 10 and the front and back surfaces are bent at an acute angle as shown in FIG. In the refill bag P of the present invention, it is folded and closed, but in the refill bag P of the present invention, two sets formed in a state of facing the front and back surfaces from the portion near the spout seal portion 10a near the spout 10 toward the bag body. Since the linear recess 20 is present, the flow rate and flow velocity of the liquid from both the notches 11 and 12 toward the spout 10 are suppressed, and the amount of liquid entering the spout 10 is suppressed. Thereby, as shown in FIG.4 (b), it can suppress that the surface of a front and back is bent at an acute angle toward the outer side, and can prevent that the spout 10 is obstruct | occluded. Since the concave portion 20 is not provided except in the vicinity of the base portion, a sufficient pouring flow path is ensured, and the flow rate and flow velocity of the liquid to be poured can be increased.

  If the linear recess 20 is provided only on one surface, the liquid flow becomes uneven on the front and back when the content liquid is poured out, and the spout 10 is bent and closed. Moreover, if the recessed part 20 is changed into a convex part, the flow volume and flow velocity of the liquid which go to the spout 10 from both the notches 11 and 12 cannot be suppressed, and the effect which this invention show | plays cannot be acquired. Become.

  The line-shaped recess 20 may be a line connected as described above, or may be a dotted line, but in order to allow liquid to be stably discharged from the spout 10, it is a connected line. It is preferable.

  The linear recess 20 can be a straight line, a curve, a combination of straight lines, a combination of curves, or a combination of straight lines and curves.

  The linear recess 20 has a trapezoidal shape as shown in FIG. 2, that is, FIG. 5A, a circular arc shape as shown in FIG. 5B, and a sectional shape as shown in FIG. Such a multistage shape or a deformed trapezoidal shape as shown in FIG.

  Further, if the spout is not bent when the content liquid is poured out, the concave portion provided on one surface of the front and back surfaces and the concave portion provided on the other surface do not necessarily have the same shape.

  As in the first embodiment, the refill bag P of the present invention is tapered so that the inner seal line of the spout seal portion 10a becomes narrower from the base toward the tip over a region that is half or more of the spout 10. It is preferable that it is formed. That is, the present invention is suitable for the refill bag P having the spout 10 having a tapered shape. Here, in the region formed so as to narrow toward the tip from the base of the spout 10, the nozzle angle θ formed by intersecting the extension line of the straight portion of the inner seal line of the spout seal 10 a is A case of 30 to 80 ° is defined as a constriction.

<Modification 1>
FIG. 6 is a modification of the refill bag shown in FIG. In the refill bag P, as shown in the drawing, the end E ₁ on the spout side of the linear recess 20 is located in the region of the bag body. In the case of this type, the distance L ₂₁ from the base of the spout 10 to the end E ₁ of the recess 20 is preferably 5 mm or less. If it is 5 mm or more, it becomes difficult to control the flow rate and flow rate of the liquid that enters the spout 10 from the shoulder.

Further, spout seal portion 10a of the inner seal shortest distance D from the line to the recess 20 ₂₁ is preferably 5mm or less 3mm or more. If it is less than 3 mm, wrinkles are likely to occur when the recess 20 is formed, and if it is greater than 5 mm, it becomes difficult to control the flow rate and flow rate of the liquid entering from the shoulder toward the spout. Then, as described above, the concave portion 20 and the shortest distance S between the recesses 20, the spout seal portion shortest distance D ₂₁ 2 present linear recess 20 to be longer than from 10a to the recess 20 It is preferable to arrange.

<Modification 2>
FIG. 7 shows another modification of the refill bag shown in FIG. In this refill bag P, the end E ₁ on the spout side of the linear recess 20 is located in the region of the spout 10 as shown. And the recessed part 20 is provided in the square shape which spreads toward the bag main body instead of parallel. That is, it is set as the shape which spreads outward by designing so that it may be near the base part of the spout 10, and the part of the both sides of the spout 10, toward the bag main body in parallel with the seal line of the spout 10a.

<Modification 3>
FIG. 8 shows still another modification of the refill bag shown in FIG. In this refill bag P, the end E ₁ on the spout side of the linear recess 20 is located in the region of the spout 10 as shown. And the recessed part 20 is provided in the square shape which curved toward the inner side while expanding toward the bag main body. That is, it is designed to be curved from the portion near the base of the spout 10 and on both sides of the spout 10 toward the bag body from a portion parallel to the seal line of the spout 10a. As a shape that spreads.

[Second Embodiment]
FIG. 9 shows a refill bag according to a second embodiment of the present invention, and this refill bag P has the same configuration as the bag of the first embodiment shown in FIGS. The same reference numerals are given to similar parts. The refill bag which concerns on 2nd Embodiment connected the edge parts by the side of the bag main body of two sets of linear recessed parts 20 formed in the state which faces the front and back surface in 1st Embodiment by another recessed part 21. Is.

In the refill bag P shown in FIG. 9, as shown in the drawing, two sets of linear concave portions 20 formed in a state of facing each other on the front and back surfaces are located near the spout seal portion 10 a near the base in the spout 10. From the parallel to the bag body, the ends of the two sets of linear recesses 20 on the bag body side are connected by another arcuate recess 21 to form a U-shape, and the bag body It is provided to include more than half of the U-shaped recess. That is, the spout-side end E ₁ of the linear recess 20 is located within the region of the spout 10, and the entire shape of the recess is U-shaped, and a part thereof is included in the spout 10. Has been.

  This refill bag P has notches 11 on both sides of the spout 10, as in the first embodiment, when the spout 10 with the tip cut off is inserted into the bottle in order to transfer the liquid content to the bottle. 12 is easy to hold in the state of being inserted into the mouth of the bottle. Then, when the content liquid is poured out with the spout 10 inserted into the mouth of the bottle, the front and back surfaces face each other from the portion near the spout seal portion 10a near the base of the spout 10 toward the bag body. Since there are two sets of linear recesses 20 formed by the above, the flow rate and flow rate of the liquid from both the notches 11 and 12 to the spout 10 are suppressed, and the amount of liquid entering the spout 10 is suppressed. The Thereby, it is possible to prevent the front and back surfaces from bulging outward, and to prevent the spout 10 from being blocked, and because the recess 20 is not provided except in the vicinity of the base of the spout 10, A sufficient pouring channel is ensured, and the flow rate and flow rate of the liquid to be poured can be increased. Furthermore, since two sets of linear recesses 20 are connected by another recess 21, the flow rate and flow velocity of the liquid from both the notches 11 and 12 to the spout 10 are further controlled, and the spout 10 The amount of liquid that enters is further suppressed.

<Modification 1>
FIG. 10 is a modification of the refill bag shown in FIG. In this refill bag P, the end E ₁ on the spout side of the linear recess 20 is located in the region of the spout 10 as shown in the figure, and the recess 20 has a U-shape with a greatly expanded bottom. It is provided. That is, it is designed to be connected to the bag body in the vicinity of the base portion of the spout port 10 and on both sides of the spout port 10 in parallel to the seal line of the spout port portion 10a, and the widened tips are connected by a large arc. Thus, the bottom is a U-shape with a large bulge.

<Modification 2>
FIG. 11 shows another modification of the refill bag shown in FIG. In the refill bag P, as shown in the drawing, the end E ₁ on the spout side of the linear recess 20 is located in the region of the bag body, and the recess 20 is provided in a large U-shape. . That is, it is designed to be connected to the center of the bag main body in a slightly expanded state from the vicinity of the base of the spout 10 and on both sides of the spout 10 and the expanded tips are connected by a large arc. The U-shape is a large size with a slightly bulging bottom.

[Third Embodiment]
FIG. 12 shows a refill bag according to the third embodiment of the present invention, and this refill bag P has substantially the same configuration as the refill bag P shown in FIG. The code | symbol is attached | subjected. The refill bag according to the third embodiment is a region of the spout 10 in the first embodiment or the second embodiment, and is a region closer to the front end of the spout 10 than the two sets of linear recesses 20. Is provided with a convex portion 30. In addition, a convex part refers to the thing of the shape swelled toward the outer side from the inner side of the bag.

  In the refill bag P shown in FIG. 12, in addition to the concave portion 20 described in FIG. 9, a linear convex portion 30 is provided in the spout 10 so as to intersect the planned opening portion 5. The convex portions 30 respectively protrude from the front and back surfaces of the bag, and are provided symmetrically so as to face each other so as to be in the same position on the front and back films. Such a convex portion 30 may be provided on either the front or back film.

  As for this refill bag P, when the spout 10 with its tip cut off is inserted into the mouth of the bottle in order to transfer the liquid content to the bottle, notches 11 are formed on both sides of the spout 10 as in the first embodiment. , 12 is easy to hold in the state inserted into the mouth of the bottle. Then, when the content liquid is poured out with the spout 10 inserted into the mouth of the bottle, the front and back surfaces face each other from the portion near the spout seal portion 10a near the base of the spout 10 toward the bag body. Since there are two sets of linear recesses 20 formed by the above, the flow rate and flow rate of the liquid from both the notches 11 and 12 to the spout 10 are suppressed, and the amount of liquid entering the spout 10 is suppressed. The Thereby, it is possible to prevent the front and back surfaces from bulging outward, and to prevent the spout 10 from being blocked, and because the recess 20 is not provided except in the vicinity of the base of the spout 10, A sufficient pouring channel is ensured, and the flow rate and flow rate of the liquid to be poured can be increased. Furthermore, since two sets of linear recesses 20 are connected by another recess 21, the flow rate and flow velocity of the liquid from both the notches 11 and 12 to the spout 10 are further controlled, and the spout 10 The amount of liquid that enters is further suppressed. In addition to this, since the opening becomes larger due to the convex portion 30 at the planned opening portion 5 of the spout 10, the spout 10 is prevented from being blocked, and the flow rate and flow rate of the liquid to be poured are further increased. Can be bigger.

[Packaging materials]
The film used in the refill bag of the present invention is a laminated film mainly composed of a plastic film, and a laminated film having a heat seal layer on the inner surface is mainly used, but is not particularly limited, and various liquids Any known laminated film used in pouches can be used. From these, a suitable one may be selected and used according to the use conditions such as the type of the content liquid and the presence or absence of heat treatment after filling.

  Furthermore, depending on the contents filled in the bag, the handling conditions after filling, or the required performance such as water vapor and other gas barrier properties, light shielding properties, various mechanical strengths, etc., between the substrate and the sealant layer In addition, for example, a laminated material having a structure in which a water vapor or other gas barrier layer, a light shielding layer, a strength enhancing layer, or the like is laminated as an intermediate layer can be used. Examples of the base material include biaxially stretched polyethylene terephthalate (PET), biaxially stretched nylon (OYN), etc., and the sealant layer includes low density polyethylene (LDPE) and linear low density polyethylene (LLDPE). And polypropylene (CPP).

〔Example〕
A refill bag P of the type shown in FIG. 9 was made by using the following packaging material and sequentially performing heat rule processing, heat sealing processing, laser processing and punching processing. In addition, the following packaging material shows the example which laminated | stacked each layer sequentially from the outer surface by bonding each layer using the dry laminating method. Moreover, the value in () shows the thickness of each layer.

"Packaging materials used (laminated film)"
-ONY (15 μm) / Printing / DL / LLDPE (130 μm)-
・ ONY: Unitika “ON-RT”
・ LLDPE: Techno film "SP-303SL"
・ Adhesive: "RU-77T / H7" manufactured by Rock Paint

  FIG. 13 is an explanatory diagram for explaining the dimensions of each part in the refill bag P used in this embodiment.

  Here, the overall size of the bag: 230 mm long × 120 mm wide, the width of the body seal portion 4 is 6 mm, the width of the upper seal portion 5 is 10 mm, and for the spout 10, the seal width of the spout seal 10 a is 3 ~ 4 mm, seal width of the shoulder seal portion 11 a on the upper side: 5 mm, width of the shoulder seal portion 12 a on the side side: 4 mm, width N of the planned opening portion 5 of the spout 10: 12.51 mm, nozzle angle θ : 50 °.

Then, the linear recess 20, the end portion E ₁ of the spout side so as to be positioned in the region of the spout 10, the overall shape is to include in part spout 10 with U-shaped . The dimensions of each part are as follows. That is, the shortest distance D ₁₁ from the inner seal line of the spout seal portion 10a to the concave portion 20: 3.01 mm, the shortest distance S of the adjacent concave portion 20: 10 mm, the width W of the concave portion 20: 3.8 mm, Distance L ₁₁ from the base to the end E ₁ of the recess 20: 5.67 mm, distance L ₁₂ from the base of the spout 10 to the opening scheduled portion 5: 21.55 mm, length L ₁₃ of the recess 20: 18 mm, separate The projecting length L ₁₄ of the arc-shaped connecting portion of the recess 21 was 8.65 mm.

  Create a refill bag P filled with general-purpose liquid detergent (350 ml) as the content liquid, break and remove the tip from the planned opening portion 5, and then insert the spout 10 into the bottle (20 mm in diameter). The content liquid was poured out. When the pouring operation is performed in this manner, the notches 11 and 12 are provided on both sides of the pouring port 10, so that they are in contact with the mouth portion and become a support, and are easily held in the state of being inserted into the mouth portion of the bottle. It was.

  When the content liquid is poured out, two sets of linear recesses 20 are formed so as to face each other on the front and back surfaces from the position near the spout seal portion 10a near the base of the spout 10 toward the bag body. Therefore, the flow rate and flow velocity of the liquid from both the notches 11 and 12 to the spout 10 are suppressed, and the amount of liquid entering the spout 10 is suppressed, so that the front and back surfaces swell outward. Was suppressed, and the spout 10 was not blocked. And since the recessed part 20 is not provided except the base vicinity of the spout 10, the sufficient pouring flow path was ensured and the flow volume and flow velocity of the liquid to pour were able to be enlarged. Furthermore, since two sets of linear recesses 20 are connected by another recess 21, the flow rate and flow velocity of the liquid from both the notches 11 and 12 to the spout 10 are further suppressed, and the spout 10 The amount of invading liquid could be further suppressed.

P refill bag 1 trunk 2 bottom 2a notch 3 bottom seal 4 trunk seal 5 unplanned opening 6 notch 7 upper seal 10 outlet 10 outlet seal 11 notch 11a shoulder seal 12 notch 12a Shoulder seal part 20 Concave part 21 Another concave part 30 Convex part

Claims (2)

It consists of a bag with front and back surfaces, and a spout is provided at either one of the upper corners of the bag body, and the periphery of the bag is heat-sealed. insert in a refill bag used to pour the content liquid into the bottle, note on both sides of the outlet and cutouts respectively are provided, two pairs of straight lines formed in a state of facing the front and back surfaces The concave portion is provided so that it does not cross toward the bag body from the position near the spout seal portion near the base of the spout and more than half of the bag body is included . coupled ends of the bag body in a separate recess, refill bags recess cross-sectional shape, wherein the trapezoidal or arc-like or multi-stage der Rukoto. The refill bag according to claim 1, wherein the two sets of linear recesses are parallel .

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