JP2017114519A - Pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouch which allows a user to easily measure the amount of contents, so that it becomes a constant amount, when a user injects contents to the pouch which is empty.SOLUTION: A pouch 10 comprises a front surface 11 and a rear surface 12. Insides of the front surface 11 and the rear surface 12 include salient-state measurement lines 41 and 42 extending from a first side seal part 17 toward a second side seal part 18 of the front surface 11 and the rear surface 12.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a pouch having at least a front surface and a back surface.

  2. Description of the Related Art A bag container (hereinafter also referred to as a pouch) made of a plastic soft packaging material having various forms such as a self-supporting bag and a gusset type bag is known. Pouches are used for containing fluid contents such as beverages such as juices, fruit juices, jelly-like beverages, nutritional drinks, seasonings, and other various foods and drinks. .

  Among such pouches, standing pouches that are self-supporting in a state filled with contents such as liquid are known. A standing pouch is a body film made of a flexible laminated film with a bottom film folded in a chevron shape and heat-sealed. When filled with liquid as the contents, the bottom film expands and becomes self-supporting. Conventionally, it has been suitably used as an alternative container for shape retaining containers such as bottles and cartons, or as a refill container for replenishing bottles with contents.

Japanese Utility Model Publication No. 61-40669 Japanese Utility Model Publication No. 6-40818

  Conventionally, such standing pouches are generally discarded after the contents are poured out and emptied. On the other hand, when the content filled in the standing pouch is made of a concentrated liquid, for example, the concentrated liquid in the standing pouch is poured into, for example, a container, and then the concentrated liquid is diluted with a predetermined amount of water or the like. In this case, it is convenient if a predetermined amount of water or the like can be measured using an empty standing pouch and poured into the concentrate. However, conventionally, there is a problem that it is difficult to inject a concentrated liquid into a standing pouch that has been emptied by a predetermined amount.

  On the other hand, conventionally, a measuring line is given to a transparent bag (refer to patent documents 1 and 2). However, when such a measuring line is applied to the outer surface of an opaque standing pouch, the amount of liquid cannot be visually recognized from the outside, and it is difficult to accurately measure the amount of liquid filled inside. There is. On the other hand, even when the measurement line is provided on the inner surface of the opaque standing pouch, it is difficult to visually confirm the measurement line from the opening side of the standing pouch.

  The present invention has been made in consideration of such points, and when a user injects contents into an empty pouch, the amount of the contents can be easily measured so as to be constant. The purpose is to provide a pouch.

  The present invention is a pouch having at least a front surface and a back surface, and is concave on the inside of at least one surface of the front surface and the back surface, from one side of the one surface toward the other side. Or it is a pouch characterized by providing a convex measuring line.

  The present invention is the pouch characterized in that the measuring line is provided from the one side to the other side.

  According to the present invention, when a user injects contents into an empty pouch, the amount of the contents can be easily measured so as to be constant.

FIG. 1 is a front view showing a pouch according to an embodiment of the present invention. FIG. 2 is a rear view showing a pouch according to an embodiment of the present invention. FIG. 3 is a sectional view showing a measuring line provided on the pouch according to the embodiment of the present invention (a sectional view taken along line III-III in FIGS. 1 and 2). FIG. 4 is a front view showing a modified example of the pouch. FIG. 5 is a perspective view showing an operation when the pouch according to the embodiment of the present invention is used. FIG. 6 is a front view showing a modified example of the pouch. FIG. 7 is a front view showing a modified example of the pouch. FIG. 8 is a cross-sectional view showing a modification of the measurement line. FIG. 9 is a cross-sectional view showing a modification of the measurement line. FIG. 10 is a cross-sectional view showing a modification of the measurement line. FIG. 11 is a cross-sectional view showing a modification of the measurement line. FIG. 12 is a front view showing a modified example of the pouch.

  An embodiment of the present invention will be described with reference to FIGS. 1 and 2 are diagrams showing the pouch before the contents are filled, that is, in a state where the contents are not filled.

  As shown in FIGS. 1 and 2, the pouch 10 is a standing pouch-type pouch that can be self-supported after being filled with the contents, and has a front surface (surface film) 11 and a back surface (back film) 12 that are separate. And are arranged so as to face each other. The pouch 10 includes an upper edge 13, a lower edge 14 facing the upper edge 13, a first edge (first side edge) 15 and a second edge (first edge) extending between the upper edge 13 and the lower edge 14. 2 side edges) 16. Among these, a first side seal portion 17 is provided along the first edge 15, and a second side seal portion 18 is provided along the second edge 16. Between the front surface 11 and the back surface 12, a bottom gusset portion 23 folded in two at a fold 23b is sandwiched.

  In the present specification, the D1 direction refers to the direction from the lower edge 14 toward the upper edge 13, and the D2 direction refers to the direction from the first edge 15 toward the second edge 16. The D1 direction is orthogonal to the D2 direction in the plane. In the present embodiment, the first edge 15 and the second edge 16 each extend parallel to the D1 direction, and the upper edge 13 and the lower edge 14 each extend parallel to the D2 direction.

  The front surface 11 and the back surface 12 are joined at the first edge 15 by the first side seal portion 17 and at the second edge 16 by the second side seal portion 18. An open opening is formed in the upper edge 13 of the pouch 10. In addition, after the pouch 10 is filled with the contents, the opening portion of the upper edge 13 is sealed to form the upper seal portion 20 (imaginary line).

  The bottom gusset portion 23 is joined to the front surface 11 and the back surface 12. That is, in the bottom gusset portion 23, one region divided by the fold line 23 b is sealed to the front surface 11 at the boat bottom-shaped bottom seal portion 19, and the other region is back surface 12 at the boat bottom-shaped bottom seal portion 19. Is sealed. The bottom gusset portion 23 is provided with a semicircular cutout 23a in the vicinity of the lower ends on both sides. The front surface 11 and the back surface 12 are directly sealed with each other at a position corresponding to the notch 23a. At the left and right ends of the lower edge 14, corners are chamfered, and arc-shaped portions 27 each having a convex arc shape are provided outward. When the length from the lower edge 14 of the pouch 10 to the crease 23b is L1, the notch 23a extends above the pouch 10 from the lower edge 14 of the pouch 10 above 1/2 (half) of L1. It is preferable to be provided. This can improve the independence.

  The first edge 15 and the second edge 16 of the pouch 10 are provided with an opening start means (notch) 21 cut out in a substantially V shape. After the pouch 10 is filled with the contents and the upper seal portion 20 is formed, the front surface 11 and the back surface 12 are cut from the opening start means 21, thereby forming a fracture opening 36 (see FIG. 5) in the pouch 10. The The front surface 11 and the back surface 12 are provided with easy-opening means 22 such as a half-cut line so as not to penetrate the front surface 11 and the back surface 12. By providing the easy-opening means 22, the front surface 11 and the back surface 12 can be easily cut and opened. In this case, the easy-opening means 22 extends from the first edge 15 toward the second edge 16. The easy-opening means 22 may not necessarily be formed, or may be formed only on one of the front surface 11 and the back surface 12.

  In the pouch 10 shown in FIGS. 1 and 2, the inner side of the surface 11 is convex toward the inner side of the surface 11 from the first side seal portion 17 side to the second side seal portion 18 side. A shaped measuring line 41 is provided. Similarly, a convex measuring line 42 is provided on the inner side of the back surface 12 from the first side seal portion 17 side toward the second side seal portion 18 side of the back surface 12. ing.

  In this case, the measuring lines 41 and 42 provided on the front surface 11 and the back surface 12 are each made of a flat band-shaped tape (plastic molded body) separate from the front surface film and the back surface film, and extend parallel to the D2 direction. . The measuring lines 41 and 42 are continuously attached from the first side edge 15 to the second side edge 16 respectively, and the first side seal portion 17 to the second side seal portion 18 are respectively surface-attached. 11 and the back surface 12. In this case, since the tape can be attached while continuously transporting the belt-shaped surface film and the belt-shaped back film, the productivity is excellent. However, the measurement lines 41 and 42 are not limited to this, and may extend from the first side seal portion 17 to the second side seal portion 18, or the first side seal portion 17 and the second side seal. It may extend only to a part between the portion 18. Moreover, the measurement lines 41 and 42 may not be formed continuously, for example, may be formed intermittently. Moreover, as shown in FIG. 4, the measurement lines 41 and 42 may not be formed continuously, and may be formed intermittently along the D2 direction. At this time, the weighing lines 41 and 42 may be attached at regular intervals.

  As shown in FIG. 3, the measuring lines 41 and 42 made of tape protrude inside the front surface 11 and the back surface 12, respectively. On the other hand, in the place where the measuring lines 41 and 42 are provided, the outer sides of the front surface 11 and the back surface 12 are not formed with irregularities, and are flat surfaces. The measuring lines 41 and 42 have a substantially rectangular cross section perpendicular to the longitudinal direction (D2 direction). For example, the height h1 of the measuring wires 41 and 42 is preferably 2 mm or more and 15 mm or less, and preferably 3 mm or more and 13 mm or less. The thickness t1 of the measuring wires 41 and 42 is preferably 0.1 mm to 3 mm, for example, and more preferably 0.5 mm to 2 mm. By setting the height h1 and the thickness t1 of the measuring lines 41 and 42 within the above ranges, the measuring lines 41 and 42 can be easily seen when viewed from the fracture opening 36 (see FIG. 5) of the pouch 10. . In the present embodiment, the cross sections of the measurement lines 41 and 42 are constant in the longitudinal direction of the measurement lines 41 and 42, but are not limited thereto, and change along the longitudinal direction of the measurement lines 41 and 42. Also good.

  The material of the measuring lines 41 and 42 made of tape is, for example, polyethylene (PE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), ethylene-methacrylic acid copolymer (EMMA), ethylene-methacrylic. An acid copolymer (EMAA), cyclic polyolefin (COC), or the like can be used. When tape is used as the measuring lines 41 and 42, the measuring lines 41 and 42 can be attached by using a machine for attaching resealing means (not shown) such as a chuck tape to the front surface 11 and the back surface 12, for example. Therefore, it is not necessary to provide a dedicated machine for forming the measuring lines 41 and 42.

  The measuring lines 41 and 42 made of a tape are preferably extended along the direction D2. For example, the draw ratio is preferably 1.5 times or more and 10 times or less, and more preferably 2 times or more and 8 times or less. Thus, when heat sterilization such as retort sterilization or boil sterilization is performed, the measuring lines 41 and 42 made of tape can be contracted in the D2 direction. For this reason, the pouch 10 can be easily opened.

  The height positions of the measuring lines 41 and 42 (positions from the lower edge 14 of the pouch 10 to the upper side of the pouch 10 (upper edge 13 side)) are such that the front surface 11 and the rear surface 12 are completely opened. When a predetermined amount of content is filled in the inside of the container, it is set at a position corresponding to the upper surface (liquid level) of the content. In other words, when the contents are filled up to the positions of the measuring lines 41 and 42 of the pouch 10 with the front surface 11 and the back surface 12 completely opened, the capacity of the contents becomes equal to the preset amount.

  Next, the layer configuration of the front surface 11 and the back surface 12 will be described. The front surface 11 and the back surface 12 are composed of a laminated film in which at least a base material layer and a sealant layer are laminated. Among these, as a material which comprises a base material layer, a polyethylene terephthalate, nylon, a polypropylene, etc. can be used. Moreover, polyethylene, polypropylene, etc. can be used as a material which comprises a sealant layer. The laminated film may be further provided with a printing layer, a support, a barrier layer, and the like. As the support, the same plastic, paper, or the like as the base material layer can be used. As the barrier layer, a metal foil such as an aluminum foil, an inorganic material such as aluminum, or an inorganic oxide such as silicon oxide or aluminum oxide can be used.

  Moreover, the front surface 11 and the back surface 12 may be comprised with one sheet of film, and may be comprised with two or more films. The front surface 11 and the back surface 12 may be opaque or transparent.

  The pouch 10 mentioned above is for accommodating the content which has fluidity | liquidity. As long as it has fluidity, the content filled in the pouch 10 is not particularly limited. For example, the contents filled in the pouch 10 include beverages such as juices, fruit juices, jelly-like beverages, energy drinks, liquid or powder seasonings, and other various foods and drinks. Can do.

  Next, the operation of the present embodiment having such a configuration will be described. In the following, a case where a concentrated liquid is used as the contents to be filled in the pouch 10 will be described as an example.

  First, a laminated film for the front surface 11, a laminated film for the back surface 12, and a laminated film for the bottom gusset portion 23 are produced. The laminated film has a configuration in which a base material layer and a sealant layer are laminated. In this case, the base material layer is prepared, and printing is performed on the base material layer while the base material layer is continuously conveyed. Next, while continuously transporting the belt-shaped base material layer, a sealant layer is laminated on the base material layer using a melt extrusion laminating method to produce a laminated film. In addition, you may laminate | stack a sealant layer on a base material layer using the dry lamination method.

  Next, the laminated film for the long surface 11 and the laminated film for the back surface 12 obtained in this way are each subjected to laser processing while being continuously conveyed, and each laminated film is formed of a half-cut line. Easy-opening means 22 is formed. As a kind of laser processing, a carbon dioxide gas laser, a YAG laser, a semiconductor laser, an argon ion laser, and the like can be used, and are not particularly limited.

  Next, the laminated film for the belt-shaped front surface 11 and the laminated film for the belt-shaped back surface 12 are continuously conveyed while being overlapped so that the sealant layers face each other. Further, the laminated film for the band-shaped bottom gusset portion 23 folded in two at a position corresponding to the crease 23 b is sandwiched between the laminated film for the front surface 11 and the laminated film for the back surface 12. Further, the measurement lines 41 and 42 made of a long and narrow strip-shaped tape prepared in advance are sandwiched between the laminated film for the front surface 11 and the laminated film for the back surface 12 while being continuously conveyed. Then, the 1st side part seal part 17 and the 2nd side part seal | sticker are given by heat-sealing with respect to the laminated | multilayer film for the surface 11, the laminated | multilayer film for the back surface 12, and the laminated | multilayer film for the bottom part gusset part 23. The part 18 and the bottom seal part 19 are formed. At this time, the entire area of the surface of the measuring lines 41 and 42 facing the laminated film is sealed to the front surface 11 and the back surface 12, respectively. The measuring lines 41 and 42 may be attached to the laminated film before the laminated film for the belt-shaped front surface 11 and the laminated film for the belt-shaped back surface 12 are opposed to each other. That is, the belt-like tape may be continuously conveyed and attached while the laminated film for the belt-like surface 11 is continuously conveyed.

  Thereafter, an opening start means 21 is formed on each of the first side seal portion 17 and the second side seal portion 18, and the front surface 11, the back surface 12, and the bottom gusset portion 23 are cut for each individual packaging bag. By making it, the pouch 10 can be obtained.

  In the pouch 10 thus obtained, the concentrated liquid is inserted from the upper opening, the opening of the pouch 10 is heat-sealed and sealed, and the upper seal portion 20 is formed.

  In use, the user cuts and opens the front surface 11 and the back surface 12 from the opening start means 21 of the pouch 10. In this case, on the front surface 11 and the back surface 12, rupture (opening) is started from the opening start means 21, and a break line starting from the opening start means 21 is formed on the front surface 11 and the back surface 12. The break line propagates along the easy-opening means 22 formed on the front surface 11 and the back surface 12, respectively. A break opening 36 (see FIG. 5) of the pouch 10 is formed by the break lines on the front surface 11 and the back surface 12.

  Next, the user pours out all the concentrated liquid filled in the container from the break opening 36 of the pouch 10 to empty the pouch 10.

  Subsequently, the user opens the front surface 11 and the back surface 12 of the pouch 10 completely, so that the fracture opening 36 is greatly opened. In this state, the user injects a predetermined amount of water (thinning solution) into the pouch 10 from the fracture opening 36. In this case, since the measurement lines 41 and 42 are provided inside the pouch 10, the user can measure the amount of water injected into the pouch 10 so as to be a constant value.

  Thereafter, the user can dilute the concentrate to a desired concentration by injecting a predetermined amount of water charged in the pouch 10 into a container containing the concentrate. Thus, by providing the measurement lines 41 and 42 inside the pouch 10, the water filled in the pouch 10 can be measured so as to have a constant amount, and the concentrate is diluted to a constant concentration. Can do.

  As described above, according to the present embodiment, the contents of the contents set in advance from the one side of the front surface 11 and the back surface 12 to the other side of the front surface 11 and the back surface 12, respectively. Measuring lines 41 and 42 are provided at positions corresponding to the upper surface (liquid level). Thereby, the user can accurately measure the amount of the contents when injecting the contents such as water into the empty pouch 10, so that the concentrate can be diluted to a constant concentration. For this reason, it can prevent that the density | concentration of the diluted concentrated liquid varies.

  In addition, according to the present embodiment, the measuring lines 41 and 42 made of tape are provided inside the front surface 11 and the back surface 12, so that the shape retention of the front surface 11 and the back surface 12 can be improved. It is possible to improve the appearance when the contents are filled and self-supported. Further, the shape retention of the pouch 10 can be improved.

(Modification of measuring line)
Next, various modifications of the measurement line will be described.

  In the embodiment described above, the measuring line 41 and the measuring line 42 have the same shape, but the present invention is not limited to this, and the measuring line 41 and the measuring line 42 may have different shapes.

  Further, in the above-described embodiment, the case where both the weighing lines 41 and 42 are provided has been described as an example, but one of the weighing line 41 on the front surface 11 side and the weighing line 42 on the back surface 12 side is described. Only the measurement line may be provided, and the other measurement line may not be provided.

  In the above-described embodiment, the measurement lines 41 and 42 made of tape have been described by taking as an example a case where the entire area of the surface facing the front surface 11 and the back surface 12 is attached to the front surface 11 and the back surface 12. As shown in FIG. 4, the measuring lines 41 and 42 made of tape may be attached to the front surface 11 and the back surface 12 partially in a surface facing the front surface 11 and the back surface 12. In FIG. 6, among the measurement lines 41 and 42 made of tape, the hatched areas indicate the parts attached to the front surface 11 and the back surface 12. Thereby, since the laminated film which comprises the surface 11 and the back surface 12 can be partially shrunk in D2 direction, the pouch 10 can be made easy to open. Moreover, since a clearance gap is formed between a laminated | multilayer film and a tape when a laminated | multilayer film shrink | contracts, the measurement lines 41 and 42 can be made easy to see. For example, the measurement lines 41 and 42 made of tape may be attached intermittently along the direction D2. At this time, the weighing lines 41 and 42 may be attached at regular intervals.

  Moreover, the measurement line 41 and the measurement line 42 may be formed at positions shifted from each other in the vertical direction. In this case, for example, the weighing line 41 (or 42) located at the upper side is used as a weighing line for thin mouth used when diluting the concentrated liquid, and the weighing line 42 (or 41) located at the lower side is used as a thick line for the concentrated liquid. It is good also as a measuring line for dark mouth used when thinning.

  Furthermore, in the above-described embodiment, the case where the measurement lines 41 and 42 are respectively provided on the front surface 11 and the back surface 12 has been described as an example. Measuring lines 41 and 42 may be provided. For example, as shown in FIG. 7, two measuring lines 41a and 41b are provided on the surface 11, and the measuring line 41a located above the measuring line 41a is used as a thin-mouthed measuring line used for thinning the concentrated solution, and below it. It is good also considering the measuring line 41b located as a measuring line for dark mouths used when diluting a concentrated liquid with a thick eye. In addition, although not shown in figure, you may provide two measuring lines similarly about the back surface 12. FIG.

  Alternatively, as shown in FIG. 8, the measuring lines 41 and 42 made of tape are expanded in the height direction, and the upper ends 43a of the measuring lines 41 and 42 are used as thin measuring lines used when diluting the concentrated solution. The lower end 43b of the lines 41 and 42 may be a dark mouth measuring line used when diluting the concentrated liquid. In FIG. 8, the height h2 of the measuring lines 41 and 42 is preferably 10 mm or more and 80 mm or less, and more preferably 20 mm or more and 70 mm or less. The thickness t2 is preferably 0.1 mm to 3 mm, for example, and more preferably 0.5 mm to 2 mm. In this case, a single measuring line 41, 42 can be used for both thinning the concentrate and thinning the concentrate.

  Furthermore, in the above-described embodiment, the case where the measurement lines 41 and 42 are made of tape has been described as an example. However, the present invention is not limited to this, and as shown in FIG. 12 may be composed of films attached to the inside of each. When the measurement lines 41 and 42 are made of a film, they can be easily attached to the front surface 11 and the back surface 12 because they are easier to weld than in the case of a tape. In FIG. 9, the height h3 of the measurement lines 41 and 42 made of film is preferably 2 mm or more and 15 mm or less, and more preferably 3 mm or more and 13 mm or less. The thickness t3 is preferably 15 μm to 100 μm, for example, and more preferably 20 μm to 50 μm. In addition, the material of the measuring lines 41 and 42 made of film is, for example, polyethylene (PE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), ethylene-methacrylic acid copolymer (EMMA), ethylene- A methacrylic acid copolymer (EMAA), cyclic polyolefin (COC), etc. can be used.

  Further, as shown in FIG. 10, the measurement lines 41 and 42 may be formed of embosses formed on the front surface 11 and the back surface 12, respectively. When the weighing lines 41 and 42 are embossed, the contents can be easily taken out because the weighing lines 41 and 42 are not easily caught when the contents are taken out. The measuring lines 41 and 42 made of emboss are formed, for example, by shaping using a pair of molds heated on the front surface 11 and the back surface 12. In FIG. 10, the measurement lines 41 and 42 are formed such that the outer surface and the inner surface of the front surface 11 and the rear surface 12 are convex toward the inside. The height h4 of the measurement lines 41 and 42 made of emboss is, for example, preferably 1 mm or more and 10 mm or less, and more preferably 2 mm or more and 4 mm or less. The protrusion amount t4 is, for example, preferably 1 mm or more and 4 mm or less, and more preferably 2 mm or more and 3 mm or less. As shown in FIG. 11, the measuring lines 41 and 42 made of emboss may be formed so that the outer surface and the inner surface of the front surface 11 and the rear surface 12 are convex outward. When the measuring lines 41 and 42 are embossed, it is preferable to form the measuring lines 41 and 42 before the laminated film for the belt-shaped front surface 11 and the laminated film for the belt-shaped back surface 12 face each other.

  Furthermore, as shown in FIG. 12, a scale line 45 may be provided by printing or the like at positions corresponding to the measurement lines 41 and 42 on the outer surface of the front surface 11 and the back surface 12. In this case, the user can surely recognize that the measurement lines 41 and 42 are provided inside the front surface 11 and the back surface 12.

(Modification of pouch)
In the above-described embodiment, the example in which the pouch 10 is a gusset bag-type pouch has been described. Moreover, although the example which forms the pouch 10 using the separate surface 11 and the back surface 12 was shown in the above-mentioned embodiment, it is not restricted to this, A three-sided sealing bag using the integrated surface 11 and the back surface 12 A mold pouch 10 may be formed. In this case, the bottom seal portion 19 may not be provided.

  In the above-described embodiment, the pouch 10 has been described by taking the case where the upper edge 13, the lower edge 14, the first edge 15 and the second edge 16 are all rectangular shapes as an example. It is not limited. For example, the pouch 10 may have a square shape, or some or all of the upper edge 13, the lower edge 14, the first edge 15 and the second edge 16 may be curved.

DESCRIPTION OF SYMBOLS 10 Pouch 11 Front surface 12 Back surface 13 Upper edge 14 Lower edge 15 First edge 16 Second edge 17 First side seal part 18 Second side seal part 19 Bottom seal part 20 Upper seal part 21 Opening start means 23 Bottom gusset part 41, 42 Weighing line

Claims (2)

A pouch having at least a front surface and a back surface,
A pouch having a concave or convex measuring line provided on the inner side of at least one of the front surface and the rear surface from one side of the one surface to the other side.   The pouch according to claim 1, wherein the measuring line is provided from the one side portion to the other side portion.

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