JP2014005010A - Packaging bag for refill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a package bag for a refill whose content can be refilled stably by inserting its mouth part into an inlet port of another container, and whose production cost is not high.SOLUTION: A package bag for a refill is configured by forming a seal part by sealing a peripheral part surrounding an upper side, left and right sides and a bottom side of a pair of front and rear lamination film. In the package bag for a refill, a mouth part is formed at an upper part of the package bag, a mouth part is opened by cutting off a cutting line provided at the mouth part, and the mouth part can be inserted into an outlet port of another container in refilling the content in the package bag, and the mouth part is formed by protruding upward at the central part of the width direction. At both sides of the mouth part, air-bagged shoulder parts are provided respectively by sandwiching a gap configured by forming a seal part by sealing the side of a U-shaped gap. In this package bag for a refill, the position of the cutting line is provided at a position that protrudes higher than the shoulder parts.

Description

  The present invention relates to a refill packaging bag for storing toiletries such as liquid detergents and softeners, and foods such as cooking oil and instant coffee. More specifically, the present invention relates to a packaging bag for refilling that can be locked to an inlet of another container when the mouth of the packaging bag is opened to refill the contents into another container.

  As refill packaging bags used for toiletries such as liquid detergents and softeners and foods such as instant coffee, packaging bags made of a laminated film having flexibility are generally used.

  For example, as shown in FIG. 6, a packaging bag is formed by sealing the ends of a pair of front and back laminated films, and a neck-shaped mouth portion 15 made of a non-sealing portion is formed at the center of the upper portion of the packaging bag. A refill packaging bag that is formed and cuts the cutting line 21 formed on the top of the mouth portion 15 to open the mouth portion and refill the contents in the packaging bag into another container from the mouth portion. There are 50 (conventional example 1).

  Further, as shown in FIG. 7, there is a packaging bag formed such that the position of the mouth portion 15 formed of a non-seal portion is directed obliquely upward at the upper corner of the packaging bag. Also in the same manner as in Conventional Example 1, by cutting the cutting line 21 formed on the upper portion of the mouth portion 15, the mouth portion is opened, and the contents in the packaging bag are packed into another container from the mouth portion. There is a refill packaging bag 60 to be replaced (conventional example 2).

  Further, as shown in FIG. 8, a pouring tool 25 made of a separate pipe is attached to the seal portion at the upper corner of the packaging bag, and the tip of the pouring tool 25 is cut to open the opening, There is a repackaging packaging bag 70 with a pouring tool for refilling the contents into another container (conventional example 3).

  In the packaging bag 50 of the conventional example 1, the mouth portion 15 is formed at the center of the upper side. However, since the packaging bag is soft at the time of refilling, there is a problem that the mouth portion 15 bends and the contents are spilled and cannot be injected stably.

  In the packaging bag 60 of the above-mentioned conventional example 2, the mouth portion 15 facing obliquely upward is formed in the upper corner of the packaging bag to facilitate pouring. There is a problem that 15 is bent and the contents are spilled and cannot be refilled stably.

  The packaging bag 70 of the conventional example 3 has an advantage that the contents can be easily refilled because the extraction tool 25 protrudes from the packaging bag. However, the packaging bag 70 of the conventional example 3 is manufactured in order to attach the exclusive extraction tool 25 to the seal portion. Therefore, there is a problem that the manufacturing cost is high because quality control in terms of surface quality is necessary and a resin pipe is used. In addition, there is a problem that the protruding dispensing tool may damage the surface of other packaging bags due to vibration during transportation.

  In order to improve these problems, there is a proposal of a refill packaging bag in which the mouth portion is inserted into the inlet of another container and the contents can be stably refilled (Patent Document 1).

  This is because a mouth portion is formed in the central portion of the upper side of the packaging bag, and guide portions are provided on both sides of the mouth portion so as to have a gap with the mouth portion. It is the packaging bag provided in the position which protrudes.

  In this case, a mouth portion is formed so as to protrude upward in the center portion in the width direction of the upper portion of the packaging bag, and guide portions are formed on both sides of the mouth portion with a U-shaped gap therebetween. After the mouth is cut and opened, the opened mouth is inserted into the inlet of another container. At this time, the injection port is a proposal for preventing the displacement of the mouth portion by being fitted and locked in the gap.

  However, since the packaging bag is soft, the guide portion is also soft, and there is a problem that the injection port cannot be stably locked in the gap.

  There is a need for a refillable packaging bag in which the mouth portion is inserted into the inlet of another container, the contents can be stably refilled, and the manufacturing cost does not increase.

JP 2000-103439 A

  The present invention has been made in view of the background art as described above, and is refilled so that the mouth portion is inserted into the injection port of another container, the contents can be stably refilled, and the manufacturing cost does not increase. It is to provide a packaging bag.

  In order to solve the above problems, the inventors have intensively studied and completed the present invention.

The invention according to claim 1 of the present invention is a refill packaging bag formed by sealing a peripheral portion around the upper side, the left and right sides and the bottom side of a pair of front and back laminated films to form a seal portion.
A mouth portion is formed in the upper portion of the packaging bag, the mouth portion is opened by cutting a cutting line provided in the mouth portion, and the mouth portion is opened in order to refill the contents in the packaging bag. A refillable packaging bag that can be inserted into the inlet of another container,
The mouth portion is formed to protrude upward in the center in the width direction,
On both sides of the mouth portion, shoulder portions that are air-backed with a gap formed by sealing a U-shaped gap side to form a seal portion are provided,
The refill packaging bag is characterized in that the position of the cutting line is provided at a position protruding from the shoulder.

  In the invention according to claim 2 of the present invention, the shoulder portion is composed of a non-seal portion surrounded by the respective seal portions of the side side, the upper side, the gap side, and the partition side, and air is introduced into the non-seal portion. 2. The refill packaging bag according to claim 1, wherein the packaging bag is press-fitted.

  The invention according to claim 3 of the present invention is characterized in that a continuous concavo-convex portion engaging with the inlet of the another container is formed in the gap side. It is a replacement packaging bag.

  The invention according to claim 4 of the present invention is characterized in that a bottom tape is inserted between the pair of front and back laminated films, the end portions are sealed to form a bottom seal portion, and self-supporting properties are imparted. It is a packaging bag for refill of any one of 1-3.

The refill packaging bag of the present invention, by inserting the mouth portion into the inlet of another container, and inserting and locking the inlet into the gap between the mouth and the shoulder that is air-backed, There is no gap in the mouth, and the contents in the packaging bag can be refilled stably. Moreover, it is a packaging bag which can be manufactured on a bag making machine and does not increase the manufacturing cost.

  According to the first aspect of the present invention, the mouth portion is formed so as to protrude upward in the center portion in the width direction, and a gap formed by sealing a U-shaped gap side and forming a seal portion on both sides of the mouth portion. Are provided with shoulders that are air-backed across each other, and the cutting line position is provided at a position that protrudes from the shoulder part, so that the mouth part of another container (hereinafter referred to as a refill container) The inlet can be inserted into the inlet, and the inlet is fitted and locked in the gap between the mouth and the shoulder that is air-backed. Can be refilled. By providing the airbag-backed shoulder portion, it is possible to improve the rigidity of the shoulder portion and improve the close contact with the injection port.

  According to claim 2 of the present invention, the shoulder portion is formed of a non-seal portion surrounded by the respective seal portions of the side side, the upper side, the gap side, and the partition side, and is formed by press-fitting air into the non-seal portion. As a result, the rigidity of the shoulder can be improved. In addition, the adhesion with the injection port can be improved. Since the inlet is stably locked in the gap, it is possible to prevent the mouth from shifting. In addition, the appearance of the packaging bag in the store display can be improved.

  According to the third aspect of the present invention, since the continuous uneven portion that engages with the inlet of the refill container is formed in the gap side, the inlet can be further stably locked. . The inlet is usually threaded for threading and fitting with the cap. By fitting so as to hook into this threading, it is possible to further prevent the mouth from shifting.

  According to claim 4 of the present invention, the contents in the packaging bag are obtained by inserting a bottom tape between a pair of front and back laminated films to seal the end portion and form a bottom seal portion to provide self-supporting properties. The capacity of can be increased. In addition, the appearance of the display can be improved by having a self-supporting and air-backed shoulder.

It is a front view of an example of the packaging bag for refilling of this invention. It is a perspective view of the packaging for refill shown in FIG. It is explanatory drawing which shows an example of the state which is refilling the contents to the refill container from the packaging bag for refilling of this invention. It is explanatory drawing which shows an example before the contents filling of the packaging bag for refilling of this invention. It is explanatory drawing which shows an example of a structure of the laminated | multilayer film of the packaging bag for refilling of this invention. It is explanatory drawing which shows an example of the upper part of the conventional packaging bag for refilling (conventional example 1). It is explanatory drawing which shows an example of the upper part of the conventional packaging bag for refilling (conventional example 2). It is explanatory drawing which shows an example of the upper part of the conventional packaging bag for refilling (conventional example 3).

  Hereinafter, embodiments for carrying out the present invention will be described.

FIG. 1 is a front view of an example of a refill packaging bag according to the present invention. FIG. 2 is a perspective view of the refill packaging bag shown in FIG. The packaging bag 80 includes a front laminated film 1, a back laminated film 2, and a bottom tape (bottom laminated film) 3. The bottom tape 3 is folded between the front and back laminated films 1 and 2 to seal the bottom 12 to form the bottom seal 12a, and the left and right sides 11 of the front and back laminated films are sealed to form the side seal 11a. ing. Further, a mouth portion 15 is formed to project upward at the central portion in the width direction of the upper portion, and shoulder portions 16 that are air-backed with a U-shaped gap 17 therebetween are formed on both sides of the mouth portion 15, respectively. Yes. Since the gap 17 is U-shaped, the upper end is opened. In addition, a continuous uneven portion 20 is formed in each gap side 14 so as to be hooked by threading of the inlet of the refill container.

  The mouth portion 15 is formed so as to protrude from the shoulder portion 16, and at the tip of the mouth portion 15, a cutting line 21 for cutting and opening the mouth portion and an opening notch on the extension line of the cutting line. 21 is formed at the edge of the seal portion. Moreover, the position of the cutting line 21 at the mouth is provided at a position protruding from the shoulder 16.

  FIG. 3 is an explanatory view showing an example of a state in which the contents are refilled into a refill container from the refill packaging bag of the present invention. The cutting line of the mouth part of the packaging bag is cut and opened, and the mouth part 15 is inserted into the injection port 31 of the refill container 30 to be refilled. The filling port 31 of the refill container is in a state of being fitted and locked in the gap 17 of the packaging bag. Since the shoulder portion 16 is rigid because it is the airbag 19 and the shoulder portion 16 is expanded by the press-fitting air, the injection port 31 can be reliably locked. In addition, a continuous concavo-convex portion 20 is formed on the gap side 14 so as to be hooked to the threading 32 of the inlet 31 of the refill container 30. The contents 24 in the packaging bag can be refilled into the refill container 30 in a stable state. A shows the flow of the contents.

  Further, a continuous uneven portion 20 is formed on the gap side 14, and the uneven portion 20 is hooked with a threading 32 for screwing or fitting with a cap formed outside the injection port 31. By entering the state, the inlet is further locked. Furthermore, it can be refilled in a stable state.

  Furthermore, the form for implementing this invention is demonstrated.

  The laminated film 40 used in the refill packaging bag of the present invention has a configuration in which at least a base material layer 41 and a sealant layer 45 are laminated. Further, if it is necessary to improve the rigidity, puncture strength, gas barrier property, etc. of the laminated film, it can be handled by providing the intermediate layer 43 between the base material layer 41 and the sealant layer 45.

  FIG. 5 is an explanatory view showing an example of the configuration of the laminated film of the refill packaging bag of the present invention. The laminated film 40 is an example in which a base layer 41 / printing layer 46 / adhesive layer 42 / intermediate layer 43 / adhesive layer 44 / sealant layer 45 are laminated in this order from the outside.

  As the base material layer 41, a plastic film or paper can be used. Examples of the plastic film include polyester films such as polyethylene terephthalate films and polyethylene naphthalate films, polyolefin films such as polypropylene, polystyrene films, polyamide films such as 6-nylon, polycarbonate films, polyacrylonitrile films, and polyimide films. There is no particular limitation as long as it has mechanical strength and dimensional stability. A biaxially stretched film is particularly preferable.

  Further, as the paper, high-quality paper, art piece paper, coated paper, cast coated paper, imitation paper, and the like can be used. In particular, the basis weight of the paper may be appropriately determined from the capacity and size of the packaging bag.

  A printing layer 46 can be appropriately provided on the base material layer as necessary. The printing layer 46 is formed of an ink formed by adding a solvent, a binder resin such as urethane, acrylic, nitrocellulose, or rubber, and various pigments, extenders, plasticizers, drying agents, stabilizers, and the like. Is the layer to be played. Characters, designs, etc. can be formed by this print layer. As the printing method, for example, known printing methods such as offset printing, gravure printing, flexographic printing, silk screen printing, and ink jet printing can be used. Moreover, the adhesiveness of a printing layer can be improved by performing the corona treatment or the ozone treatment on the surface of a base material layer as a pretreatment beforehand.

  As the sealant layer 45, low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene-methacrylic acid copolymer (EMAA), ethylene-ethyl acrylate copolymer (EAA), ionomer, Polyolefin resins such as polypropylene can be used. These resins can be used by forming a film with an extruder. The resin can be used in a single layer or multiple layers. The film thickness is preferably in the range of 10 to 100 μm, particularly preferably in the range of 15 to 60 μm.

  Further, in order to laminate the base material layer 41 and the sealant layer 45, they can be bonded together by a dry laminating method through the adhesive layer 46. As the adhesive, an adhesive for dry lamination is used. Two-component curable urethane adhesives, polyester urethane adhesives, polyether urethane adhesives, acrylic adhesives, polyester adhesives, polyamide adhesives, epoxy adhesives, and the like can be used. Moreover, it can also bond together through an anchor agent (adhesive agent), extruding a sealant layer with an extruder.

  Further, the intermediate layer 43 can be laminated in order to improve the rigidity of the laminated film, the drop strength, the piercing strength, etc., and when the contents are food, the oxygen gas barrier and the water vapor gas barrier are improved. As the intermediate layer 43, for example, a stretched polyamide resin film or the like can be used to improve the drop strength or the piercing strength, and an aluminum foil or an aluminum-deposited polyester can be used to improve the oxygen gas barrier or water vapor barrier. A film, an inorganic oxide vapor deposition polyester film, etc. can be used. In addition, the intermediate layer 43 can be laminated by the dry lamination method through the adhesive layers 42 and 44.

  As the inorganic oxide, metal oxides such as diatom oxide, aluminum oxide, magnesium oxide, calcium, potassium, tin, sodium, boron, titanium, lead, zirconium and yttrium can be used. Of these, silicon oxide and magnesium oxide are preferable in terms of productivity and price.

  Specific examples of the structure of the laminated film 40 include, for example, polyester film / printing layer / adhesive layer / linear low density polyethylene film, polyester film / printing layer / adhesive layer / stretched polyamide resin film / adhesive layer. / Linear low density polyethylene film, stretched polyamide resin film / adhesive layer / linear low density polyethylene film, stretched polyamide resin film / adhesive layer / stretched polyamide resin film / adhesive layer / linear low density polyethylene Examples thereof include a film, paper / low density polyethylene film / adhesive layer / aluminum foil / adhesive layer / low density polyethylene film, and paper / low density polyethylene film.

  Next, a manufacturing method for forming the shoulder will be described.

  For example, in order to form one shoulder, that is, the left shoulder 16 of the mouth as shown in FIG. 4, the side 11, the gap 14, and the partition 13 are respectively sealed and the seals 11 a, 14 a, 13a is formed. Next, the upper side 10 is sealed to form a seal portion 10a. At this time, an air inlet (not shown) for injecting air into a part of the upper side 10 is provided, air is injected from the air inlet, predetermined air is inserted, and then the air inlet is The airbag 19 is formed by forming a seal portion by sealing. An airbag-backed shoulder 16 can be formed.

In order to form the other shoulder portion, that is, the shoulder portion 16 on the right side of the mouth portion, as shown in FIG. 4, first, an opening 23 for filling the contents is provided. The side edge 11 and the gap edge 14 are sealed to form the seal portions 11a and 14a, and the opening 23 is provided. The contents are filled from the opening 23, and then, as shown in FIG. 1, the partition side 13 is sealed to form a seal portion 13a, and the contents are stored and sealed. Next, the upper side 10 is sealed to form a seal portion 10a. At this time, an air inlet (not shown) for injecting air into a part of the upper side 10 is provided, air is injected from the air inlet, predetermined air is inserted, and then the air inlet is An air bag is formed by forming a seal portion by sealing. An airbag shoulder can be formed.

  In this way, a packaging bag filled with contents and provided with an air-backed shoulder can be formed.

  Moreover, it is preferable that the cutting line 21 provided in a mouth part is a half cut line provided continuously in the front and back laminated film. The depth of the half cut line is possible by processing from the base material layer side toward the sealant layer and cutting to the base material layer. The mouth can be easily formed by cutting the cutting line by hand. The cutting line 21 is generally formed by a metal blade or a laser processing method. The laser processing method is preferable because a uniform and stable cutting line can be formed. As the type of laser, a carbon dioxide laser is more preferable.

  The packaging bag 80 of the present invention is preferably a packaging bag having self-supporting properties. It is preferable that the bottom of the packaging bag is a standing type packaging bag in which a bottom tape is inserted. In the example of the embodiment of the present invention shown in FIG. 1 and FIG. 2, both are standing type packaging bags. Alternatively, a gusset type packaging bag in which side tapes are inserted on both sides of the packaging bag may be used.

  Hereinafter, the specific manufacturing method of the packaging bag for refilling of this invention is demonstrated.

  Gravure printing is performed on one side of a 12 μm polyester film using gravure ink with urethane resin as a binder. Next, the printed surface of the polyester film and a stretched polyamide resin film (ONy) of 15 μm are bonded together by a dry laminating method through a two-component curable urethane adhesive.

  Next, the stretched polyamide resin film (ONy) surface and a linear low-density polyethylene film of 60 μm are bonded together by a dry laminating method through a two-component curable urethane adhesive to form a laminated film. The formed laminated film becomes a laminated film of polyester film 12 μm / printing layer / adhesive layer / stretched polyamide resin film (ONy) 15 μm / adhesive layer / linear low density polyethylene film 60 μm.

  As an example, in order to form a standing type packaging bag, the laminated film is used and slit with a predetermined width to form a front and back laminated film and a bottom tape. The bottom tape is folded between the bottom and back of the laminated film, that is, the bottom part is sealed to form the bottom seal part, and each end part is sealed to form the side seal part. Form a bag.

  Next, a mouth portion is formed at the upper portion of the packaging bag so as to protrude upward in the central portion in the width direction, and a shoulder portion that is air-backed is formed at one upper corner portion with a U-shaped gap interposed therebetween. . A continuous uneven portion is formed on the gap side.

  Further, an opening for filling the contents is formed in the other shoulder, and after filling the contents from the opening, the partition side at a predetermined position is sealed to form a seal portion to seal the contents. Thereafter, the upper side is sealed to form a seal portion. At the time of sealing, an air introduction port for press-fitting air is provided, and after air is injected, the air introduction port is sealed to form a seal portion, thereby creating a refill packaging bag filled with contents. To do.

  When forming the mouth, the mouth is formed so as to protrude from the shoulder. A cutting line for opening the mouth part is formed at the tip of the mouth part, and an easy opening notch is formed at an end edge on an extension line of the cutting line.

  The U-shaped gap fits and locks the inlet of the refill container. A continuous uneven portion is formed on the gap side so as to be hooked by threading of the injection port. Further, the size of the U-shaped gap is not particularly limited as long as the gap width is substantially equal to the thickness of the inlet of the refill container, and the depth is not limited as long as the inlet can be locked.

  As the content 24 stored in the packaging bag, the content using a plastic container having a pump nozzle, that is, a toiletry product such as a shampoo, a rinse, a liquid detergent and a softening agent, or a plastic container having a spray nozzle is used. Contents include fragrances, bactericides, insect repellents, insecticides and the like. In addition, there are refill contents that use glass containers. In addition to liquid contents, there are also solid foods such as coffee powder.

1 ... Front laminated film 2 ... Back laminated film 3 ... Bottom tape (bottom laminated film)
10 ... Upper side 10a ... Upper seal part 11 ... Side side 11a ... Side seal part 12 ... Bottom side 12a ... Bottom seal part 13 ... Partition side 13a ... Partition seal part 14 ... Gap side 14a .. Gap seal part 15 ... Mouth part 16 ... Shoulder part 17 ... Gap 18 ... Non-seal part 19 ... Air bag 20 ... Continuous uneven part 21 ... Cutting line 22 ... opening notch 23 ... opening 24 ... contents 25 ... pouring tool 30 ... refill container 31 ... inlet 32 ... threading 40 ... lamination Film 41 ... Base material layer 42 ... Adhesive layer 43 ... Intermediate layer 44 ... Adhesive layer 45 ... Sealant layer 46 ... Print layer 50 ... Refill packaging of conventional example 1 Bag 60... Refillable packaging bag 70 of Conventional Example 2... Refillable packaging bag 80 of Conventional Example 3. Ming refill packaging bag (standing type of the packaging bag)
A ... Flow of contents

Claims (4)

In the packaging bag for refilling formed by sealing the periphery of the top and bottom sides of the pair of front and back laminated films, the left and right sides and the bottom, and forming a seal part,
A mouth portion is formed in the upper portion of the packaging bag, the mouth portion is opened by cutting a cutting line provided in the mouth portion, and the mouth portion is opened in order to refill the contents in the packaging bag. A refillable packaging bag that can be inserted into the inlet of another container,
The mouth portion is formed to protrude upward in the center in the width direction,
On both sides of the mouth portion, shoulder portions that are air-backed with a gap formed by sealing a U-shaped gap side to form a seal portion are provided,
The refillable packaging bag, wherein the position of the cutting line is provided at a position protruding from the shoulder.   The shoulder portion is composed of a non-seal portion surrounded by a seal portion of each of the side side, the upper side, the gap side, and the partition side, and is formed by press-fitting air into the non-seal portion. The refill packaging bag according to claim 1.   The refill packaging bag according to claim 1, wherein a continuous uneven portion that engages with an inlet of the other container is formed in the gap side.   The bottom tape is inserted between the pair of laminated films on the front and back sides, and the end portion is sealed to form a bottom seal portion, thereby providing self-supporting property. Refill packaging bag.