JP2007331767A - Flexible bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible bag which is capable of improving the easy holding property during refilling while suppressing an increase in the amount of use of a material and manufacturing processes, easily spouting a content during the refilling, and enhancing the refilling feasibleness to a body container. <P>SOLUTION: Two side face films 11 are sealed at their peripheral edge parts to form a barrel part 1, and a bottom face film 12 is held between the side face films 11 and folded inwardly and their peripheral edge parts are sealed to the side face films 11 to form a bottom part 3 of a bag. A flexible bag 10 for refill has a spouting part 2 on an upper portion of the bag. A slit 15 extending in the longitudinal direction is formed in a side edge seal part 14 of the barrel part 1 with its center 15a being arranged closer to the bottom part 3 side from a center 1a in the vertical direction Y of the barrel part 1. The spouting part 2 is provided close to one side, and the slit 15 is formed in the side edge seal part 14 on the side opposite to the spouting part 2 across the center in the width direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a flexible bag, and more particularly to a flexible bag that can dispense contents such as liquid and powder. More specifically, the present invention relates to a flexible bag that is economical and environmentally friendly, for example, as a refill container for a main body container, which facilitates refilling of contents into the main body container.

  A flexible bag made of a film material such as a standing pouch is a bag-like container that contains liquid and powdered detergent, food, etc. in a sealed state. It is frequently used as a replacement container, and it is necessary to increase the capacity in the future. Under such circumstances, various devices have been made to improve the refillability when the contents are refilled from the flexible bag to the main body container with an increase in capacity (for example, Patent Documents 1 and 2). , 3 and 4).

  The flexible bag of Patent Document 1 is provided with an extension seal portion protruding outward on the side seal portions on both sides of the bag, and a hole for inserting a finger or a hand into the extension seal portion to hold the bag is formed. However, it has improved ease of holding. The flexible bag of Patent Document 2 is provided with a gripping hole for inserting a finger or a hand into a side edge seal portion on the opposite side of the pouring mouth portion to grip the bag. In the flexible bag of Patent Document 3, a belt-like member having a hole or cut line of an arbitrary shape is pasted at an appropriate place on the front side or both sides of the bag, or on the constricted body. It is something that was installed around. The flexible bag of Patent Document 4 is provided with a handle portion by joining a sheet on the upper portion of the bag, and a hole for gripping the bag is formed by inserting a finger or a hand into the handle portion. An unsealed portion that is not sealed is provided at the peripheral edge portion of the opening so that the burden on the handle when carrying a large-sized flexible bag can be reduced.

Moreover, without providing holes (holes) by punching etc. in the seal part of the flexible bag, it is possible to provide slits and weakening lines that form slits, so that a locking part for hanging and a handle hole can be formed A flexible bag is also disclosed (see, for example, Patent Documents 5 and 6).
JP 2002-179095 A JP-A-9-183442 JP 2005-88927 A JP-A-10-297650 JP 2002-179097 A JP 2005-212884 A

  However, in the above-mentioned conventional flexible bag, the ones in Patent Documents 1 to 4 that form holes (holes) in the seal portion are formed with holes by punching or the like in order to maintain a desired strength in the seal portion. The need to greatly increase the area of the seal part of the part or the need to attach a separate member with a hole, which increases the amount of material used and makes the bag manufacturing process complicated and economical And inferior to the environment.

  In addition, in Patent Documents 5 and 6, which are provided with slits and weakening lines without forming holes in the seal part, and can be used to form hanging locking parts and handle holes, the slits and weakening lines are Since there is no large defect part due to punching etc., there is little effect on the rigidity and shape stability of the seal part, but these slits and weakening lines are provided in the upper edge seal part and lower edge seal part of the bag While it is an effective means when carrying or hanging the flexible bag, it has not been devised to improve the workability when pouring the contents from the spout, and the contents can be packed into the main body container. It does not improve changeability.

  The present invention can improve the ease of gripping at the time of refilling while suppressing an increase in the amount of materials used and the manufacturing process, and is excellent in economic efficiency and environmental friendliness, while pouring the contents at the time of refilling. It is an object of the present invention to provide a flexible bag that can be easily taken out and can improve refillability into a main body container.

  The above problems can be solved by the following present invention. That is, in the present invention, two side films are sealed at the periphery to form a body part, and a bottom film is sandwiched between the two side films at the lower part of the body part and folded inward. A bag is formed by forming a bottom portion by sealing the peripheral portion thereof to the side film, and a refill flexible bag having a spout portion at the top of the bag, the side edge seal of the trunk portion The slit or slit forming line extending in the vertical direction is arranged on the bottom side of the body in the height direction of the body part in the inner seal part provided side by side on the inner side of the part or the side edge seal part. Is formed.

  According to the flexible bag of the present invention, it is possible to improve the ease of gripping at the time of refilling while suppressing an increase in the amount of material used and the manufacturing process, and it is excellent in economic efficiency and environmental friendliness. The contents can be easily poured out at the time of replacement, and the refillability to the main body container can be improved.

  A flexible bag 10 according to a first preferred embodiment of the present invention shown in FIG. 1 forms a barrel portion 1 by sealing two side films 11, 11 at the peripheral portion by, for example, heat sealing, and this barrel portion. The bottom film 12 is sandwiched between two side films 11 and 11 at the lower part of 1 and the peripheral edge is sealed to the side films 11 and 11 in a state of being folded inward to form the gusset-shaped bottom 3. It is a bag container for refilling which is made into a bag and has the spout part 2 in the upper part of this bag. In the flexible bag 10 of the first embodiment, the spout part 2 is provided, for example, close to one side of the upper part of the bag, and of the side edge seal parts 13, 14 of the body part 1, A slit 15 extending in the vertical direction is formed on the side edge seal portion 14 on the opposite side of the spout portion 2 across the center in the width direction X. Is also arranged on the bottom 3 side.

  The film material used for the side films 11 and 11 and the bottom film 12 is mainly a laminated film mainly made of plastic, but is not particularly limited, and is a known material used for packaging bags of contents such as liquids. Any of the laminated films can be used, and a suitable material can be freely selected and used according to use conditions such as the type of contents to be filled and the presence or absence of heat treatment after filling.

  In the first embodiment, the side edge seal portions 13, 14 that seal the side edge portions of the side films 11, 11 are poured into the side edge seal portion 14 that is disposed on the opposite side to the spout portion 2. It is provided with a wider width than the side edge seal part 13 on the outlet part 2 side, and a slit 15 is formed in this wide side edge seal part 14. The slit 15 is formed by cutting in a straight line so as to cut the approximate center of the side edge seal portion 14 in the vertical direction. At both upper and lower end portions of the slit 15, for example, a crack stopper 19 is formed by providing a round hole. Further, the slit 15 is formed by disposing the upper end on which the crack stopper 19 is formed closer to the bottom 3 side than the center 1 a in the height direction Y of the body 1.

  In the first embodiment, the side edge seal portion 14 is formed wider than the other peripheral seal portions in order to ensure the minimum necessary strength for the side edge seal portion 14 in which the slits 15 are formed. However, the linear slit 15 has less influence on the strength and rigidity of the side edge seal portion 14 as compared with the case of forming a gripping hole by punching or the like. It is possible to suppress the increase in the amount of material used by reducing the increase in the seal width as compared with the case of forming the opening. Further, in consideration of the design such as the appearance of the bag, the side edge seal portion 13 on the spout portion 2 side can be formed to have the same width as the side edge seal portion 14 in which the slits 15 are formed. The width of the heat-sealed side edge seal portions 13 and 14 has an effect of improving the standing property of the flexible bag 10 when the contents are filled, and the width of the side edge seal portions 13 and 14 is increased. Therefore, it is possible to improve the standing property.

  In the flexible bag 10 of the first embodiment having the above-described configuration, as shown in FIG. 2, the user holds the flexible bag 10 by hand and refills the main body container 20 with, for example, a liquid detergent or the like. When trying to do so, for example, the bag 10 may be gripped through the slit 15 provided in the side edge seal part 14 on the side opposite to the spout part 2, or the side edge seal part 14 a outside the slit 15 may be gripped. By gripping as described above, it is possible to hold the flexible bag 10 in a stable state while supporting the flexible bag 10. This makes it possible to accurately pour out the contents from the spout 2a formed by cutting the tip of the spout portion 2 toward the inlet 20a of the main body container 20 without causing liquid spillage or the like. It becomes possible to improve refillability. In addition, even when the flexible bag 10 is purchased, the ease of carrying can be improved by passing a hand through the slit 15 or holding it like a handle.

  Further, in the first embodiment, the slit 15 is formed such that the center 15a thereof is disposed on the bottom 3 side of the center 1a in the height direction Y of the trunk portion 1, and in particular, the crack stopper 19 is provided. Since the upper end formed is arranged on the bottom 3 side with respect to the center 1a of the body portion 1 in the height direction Y, when refilling the main body container 20, for example, the spout 2a of the bag 10 with one hand To the injection port 20a of the main body container 20, and the bottom side portion of the bag 10 can be easily grasped by the other hand through the slit 15, whereby the flexible bag 10 Even when the capacity is large, for example, while pouring the contents into the main body container 20, the bottom of the bag 10 is lifted upward, and the flexible bag 10 is tilted to gradually invert the contents. Allows refilling operations to be performed more smoothly That.

  Furthermore, in the first embodiment, since the crack stoppers 19 are provided at the upper and lower ends of the slit 15, the capacity of the flexible bag 10 is large, and the weight of the flexible bag 10 when it is lifted through the slit 15. Even if it becomes a considerable thing, it becomes possible to avoid that the flexible bag 10 breaks effectively by avoiding that the slit 15 begins to tear from the both ends.

  FIG. 3 shows a modification of the flexible bag 10 of the first embodiment. In the flexible bag 10 of FIG. 3, an unsealed portion 16 is provided in a portion where the slit 15 of the side edge seal portion 14 is formed, and the slit 15 is formed along the central portion of the unsealed portion 16. ing. By forming the slit 15 in the unsealed portion 16, an unsealed sheet is left around the opening periphery of the opening for gripping by the slit 15, and the contact with the hand and fingers is softened. Even when the weight is considerable, it is possible to effectively reduce the burden on the hand or finger passed through the slit when refilling the contents.

  FIG. 4 also shows a modification of the flexible bag 10 of the first embodiment. In the flexible bag 10 of FIG. 4, the slit 17 formed in the side edge seal portion 14 is provided in a shape that is curved outward in an arc shape between the crack stoppers 19 at both the upper and lower ends. By forming the slit 17 in a shape that is curved in an arc shape, it becomes easy to place a hand or a finger along the periphery of the opening of the gripping opening formed by the slit 17. As described above, the slit can be formed in a shape other than a straight line in view of easiness of gripping or the like, but when formed in a shape other than a straight line, the width b in the side edge seal portion 14 is It is preferable to be formed so as to be within a belt-like region 18 parallel to the side edge seal portion 14 within 10 mm (in the case of the arc-shaped slit 17, the radius of curvature is increased so as to be within the belt-like region 18). When the width b of the band-shaped region 18 where the slit is formed is increased, the width of the side edge seal portion 14 needs to be excessively increased in order to maintain the strength and rigidity of the side edge seal portion 14. The effect of suppressing the amount of use is reduced.

  FIG. 5 also shows a modification of the flexible bag 10 of the first embodiment. In the flexible bag 10 of FIG. 5, a slit forming line 21 is provided instead of the slit 17 curved in an arc shape in the flexible bag 10 of FIG. 4. The slit forming line 21 makes it possible to easily form a slit without using a tool such as scissors or a knife by manually cutting the side edge seal portion 14 along the slit forming line 21. It is a linear part. The slit forming line 21 can be preferably formed by a perforation or the like. By providing the slit forming wire 21 in place of the slit 17, it becomes easy to handle the flexible bag 10 during distribution and to improve the aesthetic appearance of the flexible bag 10. Further, when refilling the main body container 20, it is possible to form a slit by breaking the slit forming line 21 so that the refilling operation can be easily performed as described above.

  And according to the flexible bag 10 of this 1st Embodiment, it can improve the ease of holding | grip at the time of refilling, suppressing the usage-amount of a material and an increase in a manufacturing process, economical efficiency and environment In addition to being excellent in performance, the contents can be easily poured out during refilling, and the refillability into the main body container 20 can be improved. That is, according to the first embodiment, the flexible bag 10 is refilled at the time of refilling by the narrow slit 15 or slit forming line 21 provided in the side edge seal portion 14 of the trunk portion 1 and extending in the vertical direction. Since an opening for gripping is formed, there is an effect on the strength and rigidity of the side edge seal portion 14 compared to the case where a large hole for gripping is formed in the side edge seal portion 14 by punching or the like. Therefore, it is not necessary to greatly increase the area of the side edge seal portion 14, so that it is possible to suppress an increase in the amount of material used. Moreover, the flexible bag 10 can be manufactured by the same manufacturing process as that of the conventional flexible bag only by changing the heat seal pattern and adding the cutter at the portion where the slit is provided.

  Furthermore, according to the first embodiment, the slit 17 or the slit forming line 21 is formed such that the center in the height direction is disposed closer to the bottom 3 side than the center 1a in the height direction of the body 1. Since the contents can be poured out into the main body container 20 while grasping the butt side portion of the bag 10 by hand and lifting it upward while tilting the flexible bag 10 so as to be gradually inverted, the contents It becomes possible to improve the refillability by facilitating pouring out.

  FIG. 6 shows a flexible bag 30 according to a preferred second embodiment of the present invention. In the flexible bag 30 of the second embodiment, as in the flexible bag 10 according to the first embodiment, two side films 31 and 31 are sealed at the peripheral portion by, for example, heat sealing to form a body portion 33. In addition, the bottom film 32 is sandwiched between the two side films 31 and 31 at the lower part of the body 33 and the peripheral edge thereof is sealed to the side films 31 and 31 in a state of being folded inside. It is a bag container for refilling which is formed into a bag by forming the bottom 34 and has a spout 35 at the top of the bag.

  Further, in the flexible bag 30 of the second embodiment, unlike the flexible bag 10 according to the first embodiment, the spout portion 35 is provided at the center of the upper portion of the bag, and the slit 36 is In the side edge seal portions 37 on both sides of the body portion 33, the center 36 a in the height direction Y is disposed closer to the bottom 34 than the center 33 a in the height direction Y of the body portion 33. Furthermore, in the flexible bag 30 according to the second embodiment, the crack stoppers 38 are respectively formed at the upper and lower ends of each slit 36 by providing, for example, round holes.

  In the flexible bag 30 of the second embodiment having the above-described configuration, as shown in FIG. 7, the user holds the flexible bag 30 by hand and refills the main body container 20 with, for example, a liquid detergent or the like. When trying to do so, for example, gripping the flexible bag 30 while gripping the pair of slits 36 formed on the side edge seal portions 37 on both sides closer to the bottom 34 than the center 33a of the trunk portion 33. Thus, it is possible to hold the flexible bag 30 in a stable state in the hand. It is also possible to encourage the spout 35a formed by cutting off the tip of the spout 35 to open greatly. Furthermore, it is possible to perform the refilling operation of the contents more smoothly by tilting the flexible bag 30 so as to gradually invert while lifting the butt side portion of the flexible bag 30 upward. Thus, the same effect as the flexible bag 10 of the first embodiment is achieved.

  And also in the flexible bag 30 of this 2nd Embodiment, as a modification, for example, as shown to Fig.8 (a), the unsealed part 39 is provided in the part in which the slit 36 of the side edge seal part 37 is formed. It is also possible to provide the slit 36 along the central portion of the unsealed portion 39. For example, as shown in FIG.8 (b), the slit 40 formed in the side edge seal | sticker part 37 can also be provided in the shape curved in an arc shape outside. Further, for example, as shown in FIG. 8 (c), a slit forming line 41, preferably made of perforations, can be provided in the side edge seal portion 37 instead of the slits 36 and 40.

  FIG. 9 shows a flexible bag 50 according to a preferred third embodiment of the present invention. In the flexible bag 50 of the third embodiment, the body portion 53 is formed by sealing the two side films 51 and 51 at the peripheral portion by, for example, heat sealing, like the flexible bag 10 according to the first embodiment. In addition, the bottom film 52 is sandwiched between the two side films 51 and 51 at the lower part of the body section 53 and folded inward so that the peripheral edge is sealed to the side films 51 and 51 to form a gusset-like shape. It is a bag container for refilling which is formed into a bag by forming the bottom portion 54 and has a spout portion 55 at the top of the bag. In the third embodiment, similarly to the first embodiment, the spout portion 55 is provided close to one side of the upper portion of the bag.

  Also, in the flexible bag 50 of the third embodiment, unlike the flexible bag 10 according to the first embodiment, the width direction X of the trunk portion 53 among the side edge seal portions 56 and 57 of the trunk portion 53. Are arranged in parallel with the inner side of the side edge seal part 57 on the opposite side to the spout part 55 sandwiching the center of the inner side, for example, the inner seal part 58 having a vertically long substantially oval shape is spaced apart from the side edge seal part 57, The center in the height direction Y is disposed closer to the bottom 54 than the center 53 a in the height direction Y of the body 53. A slit 59 extending in the vertical direction is formed in the inner seal portion 58 such that the center 59a in the height direction Y is disposed closer to the bottom 54 than the center 53a in the height direction Y of the body portion 53. . Further, at both upper and lower ends of the slit 59, for example, a crack stopper 60 is formed by providing a round hole.

  In the flexible bag 50 of the third embodiment having the above-described configuration, as shown in FIG. 10, the user holds the flexible bag 50 by hand and refills the main body container 20 with, for example, liquid detergent or the like. When trying to do so, for example, by gripping the part between the side edge seal part 57 through the hand or finger through the slit 59 provided in the inner seal part 58 on the bottom 54 side from the center 53a of the trunk part 53, By gripping like a handle, it is possible to hold the flexible bag 50 in a stable state while holding it. In addition, it is possible to perform the refilling operation of the contents more smoothly by tilting the flexible bag 50 so as to gradually invert while lifting the butt side portion of the flexible bag 50 upward. Thus, the same effect as the flexible bag 10 of the first embodiment is achieved. In addition, even when the flexible bag 50 is purchased, it is possible to improve the ease of carrying by holding the flexible bag 50 like a handle through the slit 59, for example.

  And also in the flexible bag 50 of this 3rd Embodiment, as shown in the modification, for example, as shown to Fig.11 (a), the unsealed part 61 is provided in the part in which the slit 59 of the inner side seal part 58 is formed. A slit 59 can also be provided along the central portion of the unsealed portion 61. Further, for example, as shown in FIG. 11B, the slit 62 formed in the inner seal portion 58 can be provided in a shape that curves outward in an arc. Further, for example, as shown in FIG. 11C, a slit forming line 63 preferably made of perforations or the like can be provided in the inner seal portion 58 in place of the slits 59 and 62.

  The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the crack stoppers provided at both ends of the slit or slit forming line can be formed in a shape other than the round hole. Further, it is not always necessary to provide crack stoppers at both ends of the slit or slit forming line.

It is a side view which shows typically the flexible bag which concerns on preferable 1st Embodiment of this invention. It is a schematic diagram explaining the condition which pours the content from the flexible bag of 1st Embodiment to a main body container. It is a side view which shows typically the modification of the flexible bag of 1st Embodiment. It is a side view which shows typically the modification of the flexible bag of 1st Embodiment. It is a side view which shows typically the modification of the flexible bag of 1st Embodiment. It is a side view which shows typically the flexible bag which concerns on preferable 2nd Embodiment of this invention. It is a schematic diagram explaining the condition which pours the content from the flexible bag of 2nd Embodiment to a main body container. (A)-(c) is a side view which shows typically the modification of the flexible bag of 2nd Embodiment. It is a side view which shows typically the flexible bag which concerns on preferable 3rd Embodiment of this invention. It is a schematic diagram explaining the condition which pours the content from the flexible bag of 3rd Embodiment to a main body container. (A)-(c) is a side view which shows typically the modification of the flexible bag of 3rd Embodiment.

Explanation of symbols

1, 33, 53 Body parts 1a, 33a, 53a Center of height of body part 2, 35, 55 Outlet part 2a, 35a Outlet part 3, 34, 54 Bottom part 10, 30, 50 Flexible bag 11, 31 , 51 Side film 12, 32, 52 Bottom film 13, 14, 37, 56, 57 Side edge seal part 15, 17, 36, 40, 59, 62 Slit 15a, 36a, 59a Center 16 in the height direction of the slit, 39, 61 Unsealed portion 18 Strip-shaped region 19, 38, 60 where slit is formed Cracking 20 Main body container 20a Main container inlet 21, 41, 63 Slit forming line 58 Inner seal portion b Band-shaped region where slit is formed Width X body width direction Y body width direction

Claims (8)

The two side films are sealed at the peripheral portion to form a barrel portion, and the peripheral portion of the bottom portion film is sandwiched between the two side film and folded inward at the lower portion of the barrel portion. It is a flexible bag for refilling comprising a bottom by forming a bottom part by sealing to a side film, and having a spout part at the top of the bag,
A slit or slit forming line extending in the vertical direction on the side edge seal part of the trunk part or the inner seal part arranged side by side inside the side edge seal part has a center in the height direction of the trunk part. A flexible bag formed on the bottom side of the center.   The spout part is provided close to one side of the upper part of the bag, and the slit or the slit forming line is the side edge on the opposite side of the spout part across the widthwise center of the trunk part. The flexible bag according to claim 1, wherein the flexible bag is formed on a seal portion or the inner seal portion.   The flexible bag according to claim 2, wherein the slit or the slit forming line formed in the side edge seal portion is formed by disposing an upper end thereof on a bottom side with respect to a center in a height direction of the trunk portion.   The flexible bag according to claim 1, wherein the spout portion is provided at a center of an upper portion of the bag, and the slit or the slit forming line is formed in the side edge seal portions on both sides of the body portion. .   The flexible bag according to claim 1, wherein the slit forming line is a perforation.   The flexible bag in any one of Claims 1-5 by which a crack stopper is formed in the both ends of the said slit or the said slit formation line.   The flexible bag according to any one of claims 1 to 8, wherein the slit or the slit forming line is formed so as to fit in a belt-like region having a width of 10 mm or less in the side edge seal portion or the inner seal portion. An unsealed portion is provided in a portion of the side edge seal portion or the inner seal portion where the slit or the slit forming line is formed, and the slit or the slit forming line is provided at a central portion of the unsealed portion. The flexible bag in any one of Claims 1-7 formed along.

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