JP2015113146A - Refill bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refill bag capable of achieving stable pouring of liquid at low cost.SOLUTION: A refill bag includes a body part for accommodating liquid, and a pouring port part connected to the body part that includes a part inserted into a mouth part of a bottle when the bottle is refilled with the liquid. The pouring port part includes a pair of pouring port side parts configured as a seal portion, and an unsealed portion through which the liquid can pass when the bottle is refilled with the liquid is defined between the pair of pouring port side parts. The pouring port part further includes an opening planned part which, by being opened, becomes a pouring port from which the liquid is poured. The opening planned part includes a first part that extends toward the body part between the pair of pouring port side parts.

Description

  The present invention belongs to the technical field of pouches for sealing and packaging liquids, and particularly relates to a refill bag for transferring a contained liquid to a container such as a bottle during use.

  In general, household liquid detergents are sold in plastic bottles with spouts that are convenient for handling. In order to use this bottle repeatedly, a refill bag containing a liquid such as a replenishing liquid detergent is also sold at the same time. The refill bag is provided with a spout portion, and the liquid rectified by passing through the spout portion is poured out of the refill bag.

  In general, a refill bag is made of a flexible packaging material such as a plastic film that is lightweight and excellent in productivity. On the other hand, in a refill bag made of soft packaging material, the opening property of the spout part and the shape retention of the spout part are poor, and therefore, the problem that the spout part tends to be blocked in the middle of the liquid spout. is there. In order to solve such a problem, for example, in Patent Document 1 and Patent Document 2, embossing is performed on the film constituting the refill bag to form a concave portion or a convex portion in the spout portion. It has been proposed to increase shape retention. Moreover, in patent document 3 and patent document 4, arrange | positioning the extraction | pouring auxiliary member for improving the shape retention property of a spout part between the surface film and back film which comprise a spout part is proposed. Yes. As described above, Patent Documents 1 to 4 are based on the technical idea that the shape of the spout portion is improved to prevent the spout portion from being blocked in the middle of the liquid.

Japanese Patent No. 3154894 Japanese Patent No. 4888936 JP-A-5-132069 Japanese Patent No. 4629414

  In the refill bag described in Patent Document 1 or Patent Document 2, the manufacturing cost of the refill bag increases as much as the film is embossed. Further, in the refill bags described in Patent Document 3 and Patent Document 4, the member cost of the refill bag is increased by the amount of the extraction auxiliary member. Furthermore, in order to attach the extraction auxiliary member to the inner surface of the outlet portion, it is necessary to perform a step of forming a groove for fitting the extraction auxiliary member in the front film or the back film. In addition, an additional process for attaching the extraction assisting member is required, which makes the process complicated and increases the number of steps.

  An object of this invention is to provide the refill bag which can solve such a subject effectively.

  The present invention is a refill bag for storing a liquid to be refilled into a bottle, and the refill bag is divided into a seal portion obtained by sealing a front side film and a back side film, and an unsealed portion that is not sealed. The refill bag includes a main body portion that stores a liquid, and a spout portion connected to the main body portion, the portion being inserted into a mouth portion of the bottle when the liquid is refilled into a bottle. And the spout part includes a pair of spout part side parts configured as the seal part, and the liquid is refilled between the pair of spout part side parts when the liquid is refilled into a bottle. An unsealed portion through which the liquid can pass is defined, and the spout portion further includes a planned opening portion that serves as a spout through which the liquid is poured out by being opened, and the planned opening portion is directed toward the main body portion. It includes a first portion extending between the pair of spout side, a refill bag.

  The refill bag by this invention WHEREIN: The edge part by the side of the said main-body part among the edge parts of the said opening scheduled part may be located in the said non-seal part.

  In the refill bag according to the present invention, preferably, when the spout part is inserted into the mouth part of the bottle so that the bisectoral intermediate line of the pair of spout part side parts is parallel to the vertical direction. When the points on the side of the pair of outlets that contact the inner wall of the mouth of the bottle are referred to as a pair of contact points, the side of the pair of outlets from the contact point to the body part It is comprised so that the space | interval between a pair of said spout part side part may become wide at least partially toward this side.

  In the refill bag according to the present invention, an interval between the first portion of the scheduled opening portion and a bisector intermediate line of the pair of outlet portion side portions may be 1 mm or less.

  In the refill bag according to the present invention, the length of the portion extending the unsealed portion of the planned opening portion may be 3 mm or more and 50 mm or less.

  In the refill bag according to the present invention, the spout portion is an overopening suppression means for preventing the planned opening portion from being opened beyond the end portion on the main body portion side of the planned opening portion. May further be included.

  According to the present invention, the scheduled opening portion of the spout portion includes a first portion that extends between the pair of spout portion side portions toward the main body portion. In this case, due to the spout formed by opening the planned opening portion, at least one of the surface film or the back film of the spout portion is between the pair of spout portion side portions. Will be broken along. For this reason, even if the space | interval of a surface film and a back surface film becomes narrow, a liquid can be poured out from a spout. This makes it possible to realize stable liquid dispensing at low cost.

FIG. 1 is a plan view showing a refill bag according to an embodiment of the present invention. FIG. 2 is a diagram showing a state when the liquid stored in the refill bag shown in FIG. 1 is refilled into a bottle. FIG. 3 is an enlarged plan view showing a spout portion of the refill bag of FIG. 1 and its vicinity. 4 is a cross-sectional view showing the refill bag of FIG. 3 as viewed from the IV-IV direction. FIG. 5 is a cross-sectional view showing the refill bag of FIG. 3 when viewed from the VV direction. FIG. 6 is an enlarged plan view showing a spout portion and its vicinity of a refill bag according to a comparative embodiment. 7 is a cross-sectional view showing the refill bag of FIG. 6 as viewed from the VII-VII direction. FIG. 8 is a cross-sectional view showing the refill bag of FIG. 7 as viewed from the VIII-VIII direction. FIG. 9 is a view showing a refill bag according to a modification of the embodiment of the present invention. FIG. 10 is a diagram showing a refill bag according to a modification of the embodiment of the present invention. FIG. 11 is a view showing a refill bag according to a modification of the embodiment of the present invention. FIG. 12 is a view showing a refill bag according to a modification of the embodiment of the present invention. FIG. 13 is a view showing a refill bag according to a modification of the embodiment of the present invention. FIG. 14 is a diagram showing a refill bag according to a modification of the embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. Note that, in the drawings attached to the present specification, for convenience of illustration and understanding, the scale and vertical / horizontal dimension ratios are appropriately changed and exaggerated from those of the actual ones.

  Furthermore, terms used in the present specification for specifying shapes and geometric conditions, for example, terms such as “parallel”, “orthogonal”, and “bisected” are not limited to strict meanings. The embodiment of the invention is construed to allow an error within a range in which an intended effect can be expected.

Refill Bag FIG. 1 is a plan view showing the entire refill bag 10 according to the present embodiment. The refill bag 10 having the front film 11 and the back film 12 is configured to accommodate a liquid that can be refilled into a bottle, such as a liquid detergent or a shampoo. In the following description and drawings, the refill bag 10 is a refill bag before the liquid is stored unless otherwise specified. Unless otherwise specified, the front film 11 and the back film 12 have symmetrical shapes. That is, the constituent elements of the front film 11 and the constituent elements of the back film 12 are substantially the same. Therefore, in the following description, the shape of the surface film 11 is mainly described, and the description of the shape of the back film 12 is omitted.

  As long as the spout portion 15 described later is formed, the type of the refill bag 10 according to the present embodiment is not particularly limited. For example, the refill bag 10 is formed by joining the front film 11 and the back film 12 to each other by heat sealing or the like. In this case, the refill bag 10 is divided into a seal portion where the surface film 11 and the back film 12 are joined and an unsealed portion where the surface film 11 and the back film 12 are not joined. The position of the seal part formed by heat sealing is not particularly limited. For example, the joining portion may be formed along three edges of the refill bag 10, whereby the refill bag 10 may be configured as a three-side seal bag. Moreover, a junction part is formed along the four edge parts of the refill bag 10, and, thereby, the refill bag 10 may be comprised as a four-sided seal bag.

  The refill bag 10 may be configured as a so-called gusset bag in which a gusset is provided between the front film 11 and the back film 12. Such gusset may be provided at the bottom edge 23 of the refill bag 10 or may be provided at the side edge 22 of the refill bag 10. For example, as shown in FIG. 1, the refill bag 10 may further include a bottom film 13 disposed between the front film 11 and the back film 12 and folded inside. In FIG. 1, the fold line of the bottom film 13 folded inward is shown by the code | symbol 13a. In this case, the above-described gusset is formed on the bottom edge 23 of the refill bag 10. In the following description, a case where the refill bag 10 is a so-called bottom gusset bag in which a gusset is formed on the bottom edge 23 will be described.

  As shown in FIG. 1, the refill bag 10 includes a main body portion 14 and a spout portion 15 connected to the main body portion 14. Hereinafter, the main body part 14 and the spout part 15 will be described.

(Main body)
The main body portion 14 is a portion for mainly storing liquid. The main body portion 14 includes a bottom edge 23 sealed by a bottom edge seal portion 23a, a pair of side edges 22 sealed by a side edge seal portion 22a, and an upper edge 21. The upper edge 21 may be a portion that is opened when the refill bag 10 is filled with liquid. After the refill bag 10 is filled with the liquid, the upper edge 21 is sealed by heat sealing or the like, thereby forming the upper edge seal portion 21a. In the present embodiment, the refill bag 10 is a state in which the upper edge 21 is opened before the liquid is filled, and the upper edge 21 after the liquid is filled is sealed. It is a concept that includes both those in the state of being. Further, when the term “upper edge seal portion 21a” is used in the refill bag 10 with the upper edge 21 opened, the “upper edge seal portion 21a” means that the upper edge seal portion 21a is sealed. Means the planned part.

(Outlet part)
Next, the spout part 15 will be described. As shown in FIG. 2, the spout portion 15 is a region including a portion that is inserted into the mouth portion 31 of the bottle 30 when the liquid is refilled into the bottle 30. As shown in FIG. 2, the spout portion 15 includes a pair of spout portion side portions configured as a seal portion. In FIG. 2, the side of the spout part on the upper edge 21 side is represented by reference numeral 18a, and the side of the spout part on the side edge 22 side is represented by reference numeral 18b. An unsealed portion of the spout portion 15 is defined between the pair of spout portion side edges 18a and 18b through which the liquid can pass when refilling the bottle 30. By providing such a spout part 15, the flow of the liquid when it is poured out from the refill bag 10 can be adjusted, and thereby the refilling operation of the liquid can be facilitated. In the present embodiment, the direction in which the spout portion side edge 18a of the spout portion 15 extends is parallel to the direction in which the upper edge seal portion 21a of the upper edge 21 of the main body portion 14 extends, and the spout portion side. The spout portion 15 is configured such that the direction in which the edge 18b extends is inclined with respect to the direction in which the side edge seal portion 22a of the side edge 22 extends. In this case, as shown in FIG. 3, a notch 25 may be formed between the side edge seal portion 22a and the spout portion side edge 18b. Thus, the width of the liquid flow path can be narrowed when the liquid reaches the spout 15 from the main body 14, and this can enhance the effect that the spout 15 regulates the flow of the liquid. . Further, when the liquid is refilled into the bottle 30, the notch 25 comes into contact with the tip of the mouth portion 31 of the bottle 30, so that the refill bag 10 can be stably held with respect to the bottle 30.

The spout part 15 includes a scheduled opening part 16 that becomes a spout 17 from which liquid is poured out by opening. The opening scheduled portion 16 may be subjected to processing for easily opening the refill bag 10. For example, the scheduled opening portion 16 may include a half cut line formed by laser processing, a cutter, or the like. As described above, the planned opening portion 16 may be configured as an easy-open line that can be easily broken as compared with other regions. Note that the number of easy-open lines is not limited to one, and the scheduled opening part 16 may include a plurality of easy-open lines.
In addition, a stretched film may be included in the laminated film constituting the front film 11 and the back film 12 so that the stretched direction of the stretched film and the direction in which the scheduled opening portion 16 extends coincide with each other.
In addition, the unscheduled opening portion 16 may be configured as a print area that can indicate to the user that the place is an unsealing place.

  As shown in FIG. 3, the scheduled opening portion 16 includes a first portion 16 a that extends between the pair of spout portion side edges 18 a and 18 b toward the main body portion 14. The 1st part 16a is located in the vicinity of the bisection intermediate line 27 of a pair of spout part side edge 18a, 18b. The “bisected intermediate line 27” refers to a line that is equidistant from both the inner edge 18ai of the spout portion side edge 18a and the inner edge 18bi of the spout portion side edge 18b. Further, “in the vicinity of the bisector intermediate line 27” means that the distance d between the first portion 16a and the bisector intermediate line 27 is 1 mm or less.

  In FIG. 3, the end portion on the main body portion 14 side of the end portion of the planned opening portion 16 is represented by reference numeral 16 e. In the present embodiment, the end 16e of the planned opening portion 16 is located in the unsealed portion. The end portion 16e serves as a starting point for dispensing the liquid from the refill bag 10 when the liquid is refilled into the bottle 30. The end portion 16e may be positioned so that the distance from the end portion 16e to the above-described bisector intermediate line 27 is 1 mm or less. Thereby, the starting point of the liquid pouring from the refill bag 10 can be set near the center of the mouth portion 31 of the bottle 30.

  In the present embodiment, the first portion 16a of the planned opening portion 16 extends from the end portion 16e to the edge of the refill bag 10, and therefore, the end portion 16f on the opposite side of the end portion 16e is the refill bag 10 side. Located on the edge of the. In this case, as shown in FIG. 3, the spout portion 15 may include a picking portion 19 that is picked up by a person's finger when the opening scheduled portion 16 is opened. The knob portion 19 is formed in a seal portion that passes when the first portion 16 a of the scheduled opening portion 16 reaches the edge of the refill bag 10. The seal width of the knob 19 is determined so that the knob 19 does not interfere with the inner wall of the mouth 31 when the spout 15 is inserted into the mouth 31 of the bottle 30 or between the knob 19 and the inner wall of the mouth 31. It is preferable to set so that interference hardly occurs. For example, the seal width of the knob 19 is in the range of 15 to 50 mm. Here, “the seal width of the knob portion 19” refers to the dimension of the knob portion 19 in the direction perpendicular to the bisector intermediate line 27. Although not shown, a notch may be formed at the end of the scheduled opening portion 16 located at the edge of the refill bag 10. The notch is preferably provided so as to overlap the above-described bisector intermediate line 27.

  The dimensions of the scheduled opening portion 16 are appropriately set so that the liquid can be poured out from the refill bag 10 at a sufficient flow rate when the liquid is refilled from the refill bag 10 to the bottle 30. For example, the length of the portion extending the unsealed portion of the planned opening portion 16 is set to 3 mm or more and 50 mm or less, more preferably 5 mm or more and 50 mm or less.

  Preferably, the pair of spout portion side edges 18a and 18b are formed so that when the spout portion 15 is inserted into the mouth portion 31 of the bottle 30, as shown in FIG. Each is configured to contact the inner wall of the mouth portion 31. In FIG. 2, portions of the pair of spout portion side edges 18 a and 18 b that are in contact with the inner wall of the mouth portion 31 are denoted by reference numerals 26 a and 26 b as a pair of contact points, respectively. More specifically, the pair of contact points 26a and 26b are formed when the spout portion 15 is inserted into the mouth portion 31 of the bottle 30 so that the above-described bisecting intermediate line 27 is parallel to the vertical direction. The points on the outer edges 18ao and 18bo of the pair of outlet side edges 18a and 18b that contact the inner wall of the mouth 31 of the bottle 30 are defined (see FIG. 3). Preferably, the pair of spout portion side edges 18a, 18b has at least a partial spacing w between the pair of spout portion side edges 18a, 18b from the pair of contact points 26a, 26b toward the main body portion 14 side. It is configured to be wide. In this case, when the spout part 15 is further inserted into the bottle 30 beyond the pair of contact points 26a and 26b, the pair of spout part side edges 18a and 18b are pressed from the inner wall of the mouth part 31. And the spout part 15 will bend. As a result, as will be described later, when the liquid is refilled from the refill bag 10 to the bottle 30, it is possible to prevent the liquid flow path from being blocked at the spout portion 15.

(the film)
Next, the structure of the surface film 11 and the back film 12 of the refill bag 10 is demonstrated.

  The film constituting the surface film 11 and the back film 12 is a laminated film having a plastic film as a base material, and a laminated film having a heat seal layer on the inner surface is mainly used, but is not particularly limited. Any known laminated film used in various liquid pouches can be used. From these, an appropriate one is selected according to the use conditions such as the type of liquid to be filled and the presence or absence of heat treatment after filling.

  In addition, depending on the liquid filled in the refill bag 10 and handling conditions after filling, or required performance such as water vapor and other gas barrier properties, light shielding properties, various mechanical strengths, etc., the base material and the sealant layer In the middle, for example, a laminated material having a structure in which a barrier layer against water vapor or other gas, a light shielding layer, a strength enhancing layer, or the like is laminated as an intermediate layer can be used. Examples of the substrate include biaxially stretched polyethylene terephthalate (PET) and biaxially stretched nylon (OYN). Examples of the sealant layer include low density polyethylene (LDPE), linear low density polyethylene (LLDPE), and polypropylene (CPP). Biomass plastic can also be used as the substrate. As a base material for biomass plastic, for example, biomass polyethylene terephthalate having ethylene glycol derived from biomass as a diol as a diol unit and terephthalic acid derived from fossil fuel as a dicarboxylic acid unit as a dicarboxylic acid unit can be exemplified. Biomass plastic can also be used as the sealant layer. Examples of the biomass plastic sealant layer include a sugarcane-derived linear low-density polyethylene resin of “C4LL-LL118 (d = 0.916, MFR = 1.0 g / 10 min)” manufactured by Braschem.

Below, an example of the laminated constitution of the laminated film which comprises the surface film 11 and the back film 12 is shown. In the laminated film, bonding by a dry laminate (DL) method is employed. In the following description, the value in () represents the thickness of the layer.
Layer structure: ONY (15 μm) / printing / DL / LLDPE (130 μm) from the outer surface side
・ ONY: Unitika “ON-RT”
・ LLDPE: Techno film "SP-303SL"
・ Adhesive: "RU-77T / H7" manufactured by Rock Paint

  Next, the operation and effect of the present embodiment having such a configuration will be described. Here, the effect of the refill bag 10 obtained when the liquid is poured out will be described.

(Comparison form)
First, problems that may occur when the refill bag 110 according to the comparison form is used will be described with reference to FIGS. FIG. 6 is an enlarged plan view showing the spout portion 115 of the refill bag 110 according to the comparative embodiment. As shown in FIG. 6, in the comparative form, the expected opening portion 116 extends from the spout portion side edge 18 a on the upper edge 21 side to the spout portion side edge 18 b on the side edge 22 side. 6 to 8, the same parts as those of the present embodiment shown in FIGS. 1 to 5 are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 7 is a cross-sectional view showing the refill bag 110 in which the spout 117 is formed by opening the planned opening portion 116, as viewed from the VII-VII direction of FIG. 8 is a cross-sectional view showing the refill bag 110 of FIG. 7 as viewed from the VIII-VIII direction. The liquid flow path formed in the spout 115 is smaller than the flow path of the main body 14. For this reason, when the flow volume of the liquid which flows into the spout part 115 from the main body part 14 cannot be suppressed, as shown in FIG. 7, the surface film 11 and back film in the part from the main body part 14 to the spout part 115 are shown. Twelve slopes become steep. As a result, the distance between the surface film 11 and the back film 12 becomes narrower as the spout 117 is approached, and as shown in FIGS. 7 and 8, the front film 11 and the back film 12 before the spout 117 It is conceivable that the sticking will occur. That is, the liquid flow path is blocked before the spout 117.

  Next, with reference to FIG. 4 and FIG. 5, the effect of the refill bag 10 by this Embodiment is demonstrated. 4 and 5 are cross-sectional views showing the refill bag 10 of FIG. 3 as viewed from the IV-IV direction and the VV direction, respectively. In the present embodiment, the scheduled opening portion 16 of the spout portion 15 includes a first portion 16 a that extends between the pair of spout portion side edges 18 a and 18 b toward the main body portion 14. In this case, the surface film 11 and the back film 12 of the spout portion 15 are made of liquid between the pair of spout portion side edges 18a and 18b by the spout 17 formed by opening the planned opening portion 16. It will be broken along the dispensing direction. For this reason, even if the space | interval of the surface film 11 and the back surface film 12 becomes narrow, the liquid can be poured out from the spout 17. Moreover, even if the force which makes the surface film 11 and the back surface film 12 of the spout part 15 contact | adhere is produced, such a force is open | released in the spout 17, as shown in FIG. Therefore, it can suppress that the surface film 11 and the back surface film 12 of the spout part 15 contact | adhere, and the spout part 15 will be obstruct | occluded. As described above, according to the present embodiment, it is possible to realize stable liquid pouring at low cost without using embossing or a pouring auxiliary member.

  Moreover, in this Embodiment, as above-mentioned, a pair of spout part side edge 18a, 18b is a pair of spout part side edge 18a, as it goes to the main body part 14 side from a pair of contact point 26a, 26b. The interval w between 18b is configured to be at least partially widened. In this case, when the spout part 15 is inserted further into the bottle 30 beyond the pair of contact points 26a and 26b, the spout part side edges 18a and 18b are pressed from the inner wall of the mouth part 31 of the bottle 30. The spout part 15 will bend. FIG. 5 shows an example in which the spout portion 15 bends so that the front film 11 is positioned outside the back film 12. In this case, the radius of curvature of the deflection that occurs in the front film 11 is larger than the radius of curvature of the deflection that occurs in the back film 12. Accordingly, if both the front film 11 and the back film 12 bend with a constant radius of curvature over the entire area, the back film 12 is more likely to be bent from the spout part side edge 18a to the spout part side edge 18b than the front film 11. The route to reach is shortened. In this case, as shown in FIG. 5, the back film 12 positioned on the inner side of the front film 11 has a portion 28 a that bends inward to adjust the path difference. As a result, a flow path 28 through which a liquid can pass is formed between the front film 11 and the portion 28a of the back film 12 that bends inward. Therefore, even when a force that causes the front film 11 and the back film 12 to be in close contact with each other is generated, the liquid flow path can be more reliably ensured.

  5 shows an example in which the flow path 28 is formed by bending the spout portion 15 in a portion where the spout 17 is not formed. However, when the planned opening portion 16, that is, the spout 17 extends beyond the contact points 26a and 26b to the main body 14, the spout 15 is bent at the portion where the spout 17 is formed. Thus, the flow path 28 may be formed. Here, according to the present embodiment, as described above, the scheduled opening portion 16 is configured such that the distance d between the first portion 16a and the bisector intermediate line 27 is 1 mm or less. In this case, the unsealed portion closer to the spout portion side edge 18a than the spout 17 and the unsealed portion closer to the spout portion side edge 18b than the spout 17 bend substantially evenly. Accordingly, although not shown, the above-described flow path 28 can be similarly formed on the spout part side edge 18a side and the spout part side edge 18b side. Moreover, it becomes possible to easily push the spout portion 15 downward into the mouth portion 31 of the bottle 30 beyond the pair of contact points 26a and 26b. As a result, the flow path 28 is more easily formed.

  Note that various modifications can be made to the above-described embodiment. Hereinafter, an example of modification will be described with reference to the drawings. In the following description and the drawings used in the following description, the same reference numerals as those used for the corresponding parts in the above embodiment are used for the parts that can be configured in the same manner as in the above embodiment. A duplicate description is omitted. In addition, when it is clear that the operational effects obtained in the above-described embodiment can be obtained in the modified example, the description thereof may be omitted.

(Modifications related to the components of the spout)
In the above-described embodiment, an example in which the first portion 16a of the opening scheduled portion 16 of the spout portion 15 is similarly formed on both the front film 11 and the back film 12 has been shown. However, the present invention is not limited to this, and even if the first portion 16a of the planned opening portion 16 formed on the front film 11 and the first portion 16a of the planned opening portion 16 formed on the back film 12 are different. Good. For example, the first portion 16 a of the planned opening portion 16 formed on the front film 11 may be longer than the first portion 16 a of the planned opening portion 16 formed on the back film 12. In this case, as shown in FIG. 9, in the cross-sectional view when the spout part 15 is cut along the direction from the spout part side edge 18 a to the spout part side edge 18 b, the spout 17 is formed on the surface film 11. However, there is a portion that the spout 17 is not formed on the back film 12. Also in such a form, since the liquid can be poured out from the spout 17 irrespective of the space | interval of the surface film 11 and the back surface film 12, stable liquid pouring can be implement | achieved. In addition, although not shown in figure, the form that the 1st part 16a of the opening scheduled part 16 is formed only in any one of the surface film 11 or the back surface film 12, and the 1st part 16a is not formed in the other is also considered.

  Further, the spout portion 15 further includes an overopening suppression means 29 for preventing the planned opening portion 16 from being opened beyond the end portion 16e on the main body portion 14 side of the end portion of the planned opening portion 16. May be. Thereby, it is possible to prevent the liquid from being poured out from an unintended portion of the refill bag 10, and this enables the refilling operation to the bottle 30 to be performed more stably. The specific structure of the overopening suppression means 29 is not particularly limited as long as it can be an obstacle to the force to break the front film 11 or the back film 12. For example, as the overopening suppression means 29, ink, a plastic film, a plastic molded body, or the like provided on the front film 11 or the back film 12 can be employed. Preferably, a plastic film or a plastic molded body is employed as the overopening suppression means 29. For example, a polyethylene film can be used as the plastic film. The excessive opening suppression means 29 may be provided so as to overlap with the end portion 16e of the planned opening portion 16, or overlap with the planned opening portion 16 outside the end portion 16e (the edge side of the refill bag 10). It may be provided as follows. For example, by oversealing the polyethylene film on the inner surfaces of the front film 11 and the back film 12 from the end portion 16e of the planned opening portion 16 toward the main body portion 14, as shown in FIG. Can be provided.

  Moreover, although not shown in the drawing, erroneous opening suppression means for preventing the surface film 11 and the back film 12 from being broken along a path deviated from the opening opening portion 16 is provided on both sides or one side of the opening opening portion 16. May be. As the erroneous opening suppression means, as in the case of the excessive opening suppression means 29 described above, ink, a plastic film, a plastic molded body, or the like provided on the front film 11 or the back film 12 can be employed.

  Moreover, as shown in FIG. 11, the opening scheduled part 16 of the spout part 15 may further include the 2nd part 16b located in the main-body part 14 side rather than the 1st part 16a. The second portion 16 b is a portion that is continuous with the first portion 16 a but extends away from the bisector intermediate line 27. Specifically, the distance d between the second portion 16b and the bisector intermediate line 27 is greater than 1 mm. By providing the second portion 16b as described above, it is possible to set more flexibly the position from which the liquid is dispensed when the liquid is refilled into the bottle 30.

  Moreover, as shown in FIG. 12, the opening scheduled part 16 of the spout part 15 may further include a third portion 16c extending from the spout part side edge 18a to the spout part side edge 18b. In this case, as shown in FIG. 12, even if the portion where the first portion 16a and the third portion 16c intersect is an end portion located on the opposite side of the end portion 16e among the end portions of the first portion 16a. Good.

(Modification regarding shape of spout)
In the present embodiment described above, the direction in which the spout portion side edge 18a of the spout portion 15 extends is parallel to the direction in which the upper edge seal portion 21a of the upper edge 21 of the main body portion 14 extends, and the spout portion. An example in which the spout portion 15 is configured such that the direction in which the side edge 18b extends is inclined with respect to the direction in which the side edge seal portion 22a of the side edge 22 extends is shown. However, the present invention is not limited to this, and as shown in FIG. 13, the direction in which the spout portion side edge 18 a extends is inclined with respect to the direction in which the upper edge seal portion 21 a of the upper edge 21 of the main body portion 14 extends. The spout portion 15 may be configured such that the direction in which the outlet portion side edge 18b extends is inclined with respect to the direction in which the side edge seal portion 22a of the side edge 22 extends. In this case, as shown in FIG. 13, a notch 24 is formed between the upper edge seal portion 21a and the spout portion side edge 18a, and the side edge seal portion 22a and the spout portion side edge 18b A notch 25 may be formed between them. The notches 24 and 25 are preferably configured so that the notches 24 and 25 come into contact with the tip of the mouth portion 31 of the bottle 30 when the liquid is refilled into the bottle 30. As a result, the refill bag 10 can be held more stably with respect to the bottle 30.

  Alternatively, as shown in FIG. 14, the direction in which the spout portion side edge 18a extends is parallel to the direction in which the upper edge seal portion 21a of the upper edge 21 of the main body portion 14 extends, and the direction in which the outlet portion side edge 18b extends. The spout portion 15 may be configured to be parallel to the direction in which the side edge seal portion 22a of the side edge 22 extends.

  In addition, although some modified examples with respect to the above-described embodiment have been described, naturally, a plurality of modified examples can be applied in combination as appropriate.

DESCRIPTION OF SYMBOLS 10 Refill bag 11 Surface film 12 Back surface film 14 Main-body part 15 Outlet part 16 Opening scheduled part 16a 1st part 17 Outlet 18a, 18b Outlet part side part 19 Pick part 26a, 26b Current contact point 27 Bisection intermediate line 28 Channel 29 Over-opening suppression means 30 Bottle 31 Mouth

Claims (6)

A refill bag containing liquid to be refilled into a bottle,
The refill bag is divided into a seal portion obtained by sealing the front film and the back film, and an unsealed portion that is not sealed,
The refill bag is
A main body for storing liquid;
A spout portion connected to the main body portion, including a portion that is inserted into the mouth portion of the bottle when the liquid is refilled into the bottle, and
The spout part includes a pair of spout part side parts configured as the seal part, and the liquid can pass between the pair of spout part side parts when the liquid is refilled into a bottle. A seal is defined,
The spout part further includes a planned opening part serving as a spout from which liquid is poured out by being opened,
The opening scheduled portion is a refill bag including a first portion extending between the pair of spout portion side portions toward the main body portion.   The refill bag according to claim 1, wherein an end portion on the main body portion side of an end portion of the planned opening portion is located in the unsealed portion.   The inner wall of the mouth portion of the bottle when the spout portion is inserted into the mouth portion of the bottle so that the bisector intermediate line of the side portions of the pair of outlet portions is parallel to the vertical direction. When the points on the side portions of the pair of spout portions that are in contact with each other are referred to as a pair of contact points, the pair of spout portion side portions move toward the main body portion from the contact point. The refill bag according to claim 1, wherein the refill bag is configured so that a gap between the side portions is at least partially widened.   The refill as described in any one of Claims 1 thru | or 3 whose space | interval between the said 1st part of the said opening expected part and the bisector intermediate line of the said pair of spout part side part is 1 mm or less. bag.   The refill bag as described in any one of Claims 1 thru | or 4 whose length of the part which extends the said non-seal part among the said opening scheduled parts is 3 mm or more and 50 mm or less.   The said spout part further contains the excessive opening suppression means for preventing that the said opening scheduled part is opened beyond the edge part by the side of the said main-body part among the edge parts of the said opening expected part. The refill bag as described in any one of thru | or 5.

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