JP6540212B2 - Composite container - Google Patents

Description

  The present invention relates to composite containers. In particular, the present invention relates to a composite container combining a soft packaging bag and a carton.

  Conventionally, a packaging material using a plastic film or a laminate based on a plastic film is also called a pouch or a soft packaging bag, and is widely used for food products, household goods, and industrial applications.

  The soft packaging bag has the inherent function of protecting the contents and preservation as well as the original function of the packaging material, and also has the advantage of being able to be stored and transported sideways, and inexpensive. Have.

  Moreover, in order to improve the convenience at the time of using, the device which makes a soft packaging bag stand is made, and the thing of various forms, such as a corner bottom soft packaging bag and a standing pouch, is commercialized.

  On the other hand, the carton, which is a packaging material using a paper base, is easy to maintain its shape in addition to cost merit, has an advantage in self-supporting ability, retention of the open state, etc. ing. Also, as proposed in the patent document, a self-standing container in which soft packaging bags are placed in a carton has also been proposed as a composite container.

  However, in the contents proposed in the patent document, there are problems such as poor retention of the open state, a basic function as a packaging material in the carton portion, no closure mechanism, etc. It was inconvenient and did not provide customer satisfaction. This is because shape retention and retention of the open state are considered to be important mechanisms in removing the contents from the soft packaging bag.

  In addition, there are bag-in-cartons and bag-in-boxes, in which soft packaging bags are contained in cartons and used in duplicates, but in addition to the appearance being not good, they may be expensive. Applications have been limited because they can not be avoided.

JP-A-11-236054

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a composite container capable of maintaining the soft packaging bag's independence while maintaining the shape and opening state of the flexible packaging bag and having a closing mechanism. It is

As means for solving the above problems, the invention according to claim 1 is a composite container comprising a soft packaging bag and a carton covering the same, wherein the soft packaging bag is a plastic film or a plastic film as a base material. The carton is formed of paper as a base material, has a rectangular opening at the top of the body, and the opening of the carton is provided with a flap having a hole, The other flap is provided on the side opposite to the flap, and the carton is closed by inserting the other flap into the hole provided in the flap having the hole, from the hole The composite container is characterized in that the upper part of the soft packaging bag is popped out and exposed to the outside, and the soft packaging bag and the carton covering it are partially adhered to each other near the opening. A.

  The invention according to claim 2 is the composite container according to claim 1, wherein the hole is a slit.

  The invention according to claim 3 is the composite container according to claim 1 or 2, wherein creases for closing the carton are provided on the body of the carton.

  The invention according to claim 4 is characterized in that the opening of the carton is performed by separating and opening the lead ruled line provided at the boundary between the flap having a hole and the body of the carton. It is a composite container in any one of claim | item 3.

  According to the present invention, it is possible to provide a composite container capable of maintaining the shape of the soft packaging bag and maintaining the opened state while securing the self-supporting property of the soft packaging bag, and having the closing mechanism of the carton.

  Further, according to the invention as set forth in claim 2, there is provided a composite container capable of maintaining the shape of the soft packaging bag and maintaining the opened state while securing the self-supporting property of the soft packaging bag, and having the closing mechanism of the carton. be able to.

  Further, according to the invention as set forth in claim 3, it is possible to secure the self-sustaining property of the soft packaging bag, and at the same time, to maintain the shape and open state of the soft packaging bag, and to perform the closing of the carton more easily. Composite containers can be provided.

  Further, according to the invention as set forth in claim 4, while maintaining the self-supporting property of the soft packaging bag, it is possible to keep the shape of the soft packaging bag and keep the opened state, and has the closing mechanism of the carton more easily. It is possible to provide a composite container capable of opening a carton.

FIG. 1 is a plan developed view of one embodiment of a carton of the composite container according to the present invention. FIG. 2 is a schematic perspective view for explaining the first step of the sealing method of one embodiment of the composite container according to the present invention. FIG. 3 is a schematic perspective view for explaining the second step of the sealing method of one embodiment of the composite container according to the present invention. FIG. 4 is a schematic perspective view for explaining a state in which sealing is completed in an embodiment of the composite container according to the present invention. FIG. 5 is a schematic perspective view for explaining the unsealing state of one embodiment of the composite container according to the present invention.

  Hereinafter, detailed description will be added with reference to FIGS. 1 to 5 as to embodiments of the present invention. However, the present invention is not limited to only these examples.

FIG. 1 is a plan development view of an embodiment of a carton of the composite container according to the present invention. The carton (10) is made of paper and is composed of a bottom (20) and a body (30), and the top of the carton has a structure that can be sealed by a sealing mechanism (40). There is.

  The body (30) of the carton (10) can be formed by pasting the glue flaps (8) onto the body (30) to form a tubular body having a rectangular cross section in the opening, the bottom part The bottom flaps (13) can be fitted together to form a flat surface. The bottom portion (20) may consist of only the fitting of the bottom flap (13), and may be further configured using glue.

  In this way, the carton (10) covers the bottom (20) and the body (30) of the soft packaging bag, thereby supporting the soft packaging bag and enabling independence and shape retention.

  The torso portion (30) is provided with a fold line (4) used when closing the upper part of the carton (10), and the trunk portion (30) is pushed inward along the torn line (4) to The opening of (10) can be closed and the top of the carton can be sealed and secured by the sealing mechanism (40) at the top of the carton. Also, after the carton is assembled by putting creases, it can be folded compactly, which is convenient when storing the carton.

  The sealing mechanism (40) comprises a flap (1) with a hole, another flap (3) of the opposite side, and a hole (2) provided in the flap at the top of the carton. In sealing, one side of the flap (1) having a hole is brought into contact with the opposite side of the other flap (3) by pushing the crease (4) inward.

  Furthermore, the closure is carried out by inserting another flap (3) of the opposite side into the hole (2) provided in the flap. The hole (2) provided in the flap (1) having a hole may be in the form of a slit.

  At this time, the soft packaging bag is stored inside the carton, and the upper part of the soft packaging bag can be seen from the outside with the carton outside exposed, and is sealed in a state where it can be pinched by hand. Ru. By this, it can be visually confirmed from the outside that the contents are stored in the soft packaging bag, it is self-supporting by the carton, and it is a structure where the trunk is protected. I can see it.

  At the time of opening, it is possible to cut and open the lead ruled line (5) provided at the boundary between the flap (1) having a hole and the body (30). Cutting the lead creases (5) unwraps the top of the carton, and the resilience of the paper allows the top of the carton (10) to again make a rectangular opening.

  Subsequently, a description will be added regarding the condition in which the carton according to the present invention is partially sealed at the bottom and the body of the soft packaging bag. FIG. 2 is a schematic perspective view for explaining the sealing method of one embodiment of the composite container according to the present invention.

  The soft packaging bag (11) is composed of a plastic film or a laminate based on a plastic film. In order to process a plastic film or a laminate based on a plastic film into a bag, for example, a sealant layer can be provided on the inner side of the bag and the bag can be manufactured by heat sealing.

The soft packaging bag (11) is in the carton (10) and the opening of the carton (10) is closed with the upper part (6) of the soft packaging bag protruding outward from the top of the carton and exposed . At the time of sealing, the flap (1) with a hole and the other flap (3
And close them) and close them by contacting them through the upper part (6) of the soft packaging bag, but then push the creases (4) inside the body (30) of the carton to close the top of the carton Can be sealed off.

  At this time, the contents are stored inside the soft packaging bag (11), but since the contents are at the lower part of the soft packaging bag (11), the soft packaging bag protrudes from the hole and is exposed to the outside The upper part (6) has no contents and is flat.

  Further, the shape of the soft packaging bag (11) is not particularly limited, but the portion of the soft packaging bag (11) covered with the carton (10) is a state in which the contents are contained, for example, the carton (10) can be shaped according to the shape when closed, or it may be a shape in which a gusset is inserted into the body or the bottom.

  Subsequently, the flap (1) having the hole is folded in the direction of the arrow (9), and the flap (1) having the hole passes through the hole (2) provided in the flap, ) Is exposed to the outside of the carton and is exposed and exposed. At the same time, in the upper part of the carton, the upper part (6) of the soft packaging bag is directed to the outside, and except for the protruding part, it is covered by the flap (1) having a hole.

  FIG. 3 is a schematic perspective view for explaining the second step of the sealing method of one embodiment of the composite container according to the present invention.

  In the state shown in FIG. 3, the flap (1) having the hole is folded back in the direction of the arrow (9) to form the upper part (6) of the soft packaging bag and another flap (3) on the opposite side. Is inserted into the hole (2) provided in the flap and exposed to the outside of the carton (10).

  In addition, another flap (3) of the side opposite to the flap (1) with holes can be folded back in the direction of the arrow (12) to secure the closure of the carton (10). This keeps the top of the carton 10 sealed.

  The shape of the other flap (3) on the opposite side and the shape of the hole (2) provided in the flap is not particularly limited, but another flap (3) on the opposite side is provided on the flap After inserting into the hole (2), it is effective to fix the closed state by keeping the same size or slightly larger than the hole (2) provided in the flap so as not to return easily. It is preferable because

  Alternatively, fix the closed state by making the shape of the other flap (3) of the opposite side the shape of the flap of the flap, and making it impossible to backtrack after inserting into the hole (2) It may be a mechanism.

  FIG. 4 is a schematic perspective view for explaining a state in which sealing is completed in an embodiment of the composite container according to the present invention.

  The flexible packaging bag (11) is in the carton (10), and the upper part of the carton (10) is sealed with the flexible packaging bag upper part (6) exposed from the top of the carton to the outside. The other flap (3) of the opposite side is inserted into the hole (2) provided in the flap of the flap (1) having the hole, so that the closure of the upper part of the carton The state is fixed and maintained.

  Moreover, while the soft packaging bag (11) is difficult to maintain its shape due to its material, according to the present invention, the carton (10) has the bottom (20) and the body (30) of the soft packaging bag. Because it covers a part of it, it is possible to stand on its own and keep its shape.

  From the hole (2) provided in the flap of the flap (1) having a hole, the upper part (6) of the soft packaging bag is exposed to the outside of the carton. In this state, it is also possible to hold the carton (10) by hand and to hold the upper portion (6) of the soft packaging bag by hand. When printing etc. are given to the upper part (6) of a soft packaging bag, visual confirmation from the outside is also possible.

  When the carton (11) of the composite container (50) is sealed, the lead creases (5) are located on both sides of the upper portion (6) of the soft packaging bag exposed from the carton. Since the lead creases (5) consist of creases and intermittent through holes, they are easy to bend and can be separated easily, so that in the composite container according to the present invention, the reverse bending when closing the top of the carton It is easy to separate the bag when opening it.

  FIG. 5 is a schematic perspective view for explaining the unsealing state of one embodiment of the composite container according to the present invention.

  In the opening of the carton (10), lead creases (5) provided at the top of the carton between the flap (1) having a hole and the body (30) are separated and opened. The lead ruled line (5) is composed of ruled lines and intermittent through holes, so separation can be easily performed using a hand or a finger.

  The soft packaging bag (11) is opened separately from the carton (10) by tearing the upper part of the soft packaging bag (6), but an easy-open mechanism may be provided to tear it open by hand. It does not matter if it is opened using an instrument.

  The opening of the carton (10) has a rectangular or nearly rectangular shape as the creases (4) return due to the resilience of the paper. By adhering a portion of the soft packaging bag (11) near the carton opening, the soft packaging bag (11) follows the opening of the carton to form the opening (7) of the soft packaging bag, It is possible to maintain a large open state. It is preferable to maintain the open condition of the soft packaging bag (11) when taking out the contents.

  The material which comprises a soft packaging bag (11) consists of a laminated body which made the plastic film or the plastic film the base material. The material configuration of the plastic film or laminate constituting the soft packaging bag (11) is not necessarily limited, and if it has a sealant layer in at least the innermost layer in addition to the base film, manufacture of the soft packaging bag Is possible. In addition, the material and the layer configuration of the laminate may be designed according to the contents and the properties and purpose of the product.

  A sealant layer is provided at least on the inner side of the laminate for bag-making. Among the thermoplastic resins, polyolefin resins are generally used as the material of the sealant layer, and specifically, low density polyethylene resin (LDPE), medium density polyethylene resin (MDPE), linear low density polyethylene resin (LLDPE), ethylene-vinyl acetate copolymer (EVA), ethylene-α-olefin copolymer, ethylene-based resin such as ethylene-methacrylic acid resin copolymer, blend resin of polyethylene and polybutene, homopolypropylene resin (PP), a propylene-ethylene random copolymer, a propylene-ethylene block copolymer, a polypropylene-based resin such as a propylene-α-olefin copolymer, and the like can be used.

  If necessary, it is possible to print up the image as a product and the necessary information about the contents. For the substrate film for that purpose, a plastic film made of a polymer material can be used. The polymer film is a film made of a polymer resin composition, and polyolefin (polyethylene, polypropylene, etc.), polyester (polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, etc.), polyamide (nylon 6, nylon 66, etc.), polyimide Etc. can be used and selected appropriately according to the application. In particular, when polypropylene and polyethylene terephthalate are used as the base film, film strength and cost are more preferable.

  Moreover, the opaque layer which shields an ultraviolet-ray, such as a colored film, can be provided in a laminated body for the purpose of improving the preservability of the content. Alternatively, a gas barrier layer can be provided in the laminate.

  As the gas barrier layer, metal foil such as aluminum foil, a film obtained by depositing aluminum on a film, or the like can be added to the components of the laminate.

  Since it is not possible to use a metal foil such as aluminum foil for the gas barrier layer on the premise that microwave heating is performed using a microwave oven, a gas barrier film may be bonded to form a laminate. The gas barrier film can be laminated using an adhesive, for example, using a dry lamination method, or an extruder can be used to extrude and laminate a thermoplastic resin.

  In the case of a gas barrier film, the gas barrier layer can be composed of a deposited layer of an inorganic compound and a coating layer, and after providing an anchor coat on a base film, the deposited layer and the coating layer are sequentially provided. Alternatively, a gas barrier film having a gas barrier layer may be attached to a base film.

  For example, urethane acrylate can be used for the anchor coat layer of the gas barrier film. The coating thickness is preferably in the range of 50 to 65 nm. For forming the anchor coat layer, a coating method in which a coating solution in which a resin is dissolved in a solvent is applied to a printing method such as gravure coating can be used to form a coating film using a generally known coating method.

  As a method of forming a deposition layer, an inorganic compound such as SiO or AlO is coated on a base film provided with an anchor coat layer using a vacuum deposition method to form an inorganic compound layer by a vacuum deposition method it can. The thickness of the vapor deposition layer is preferably 15 nm to 30 nm.

  As a method for forming a coating layer, an aqueous solution or water / alcohol containing at least one of a water-soluble polymer, (a) one or more alkoxides or hydrolysates thereof, or both, or (b) tin chloride A coating agent containing a mixed aqueous solution as a main ingredient can be coated on a film and dried by heating to form an inorganic compound layer by a coating method to form a coating layer. At this time, adhesion to the anchor coat layer can be improved by adding a silane monomer to the coating agent.

  The inorganic compound layer has gas barrier properties even with a coating formed only by a vacuum deposition method, but a coating layer which is an inorganic compound layer formed by a coating method is formed over the deposition layer which is an inorganic compound layer formed by a vacuum deposition method to form a barrier layer. be able to.

  A reaction layer of both layers is produced at the interface between the inorganic compound layer by vacuum deposition and the inorganic compound layer by coating by combining these two layers, or the inorganic compound layer by coating is formed into an inorganic compound layer by vacuum deposition. By filling and reinforcing defects such as pinholes, cracks, grain boundaries, etc., or fine pores, a dense structure is formed, thereby achieving high gas barrier properties, moisture resistance, water resistance, and flexibility to withstand deformation. Because of its flexibility, it can also be suitable as a packaging material.

  In addition, when using SiO as a barrier layer, the contents can be seen from the outside of the soft packaging bag because it is transparent. These may be properly used depending on the application and required quality.

  Of the plastic films or laminates that make up the soft packaging bag, printing can be performed on the layer that can be seen from the outside of the soft packaging bag. The printing can display information about the contents and a logo mark, and can effectively display an image and usage of the contents as characters and images.

  There are no particular restrictions on the printing method and printing ink, but among the known printing methods, printability to a film, designability such as color tone, adhesion, safety as a food container, etc. are considered as appropriate. For example, a gravure printing method, an offset printing method, a gravure offset printing method, a flexographic printing method, etc. can be used. Among them, the gravure printing method can be preferably used.

  The material making up the carton (10) is based on paper, but is not subject to any special restriction, and has appropriate strength, and its suitability if the required quality differs depending on the contents. It can be selected appropriately from those used.

  Further, since the material of the carton (10) is paper, its rigidity is effective in protecting the contents of the soft packaging bag (11). These are highly convenient and preferable when selling products using the composite container according to the present invention at a store or the like.

  Also, for example, when cardboard is used as the material of the carton (10), it is possible to realize a composite container which is excellent in heat retention and heat insulation in addition to self-sustaining ability, shape retention, open condition retention, closing mechanism, etc. it can.

  Also, printing can be provided outside the carton separately from the soft packaging bag. There are no particular restrictions on the printing method and printing ink, but known printing methods, printability from materials to paper substrate, designability such as color tone, adhesion, and food container if necessary It can be selected appropriately in consideration of the safety and the like. For example, a gravure printing method, an offset printing method, a gravure offset printing method, a flexographic printing method, etc. can be used.

  As described above, according to the present invention, it is possible to provide a carton capable of maintaining the soft packaging bag's self-supporting property while at the same time maintaining the shape and opening state of the soft packaging bag, and having the closing mechanism.

DESCRIPTION OF SYMBOLS 1 ..... The flap 2 which has a hole 2 ... the hole 3 ... another flap 4 ... fold crease 5 ... lead crease 6 ... upper part 7 of a soft packaging bag ... of a soft packaging bag Opening 8 Glue flap 9 Arrow 10 Carton 11 Soft packaging bag 12 Arrow 13 Bottom flap 20 Bottom 30 Body 40・ Sealing mechanism 50 ... composite container

Claims (4)

A composite container comprising a soft packaging bag and a carton covering the same, wherein the soft packaging bag comprises a plastic film or a laminate based on a plastic film, and the carton comprises a paper as a substrate, The top of the section has a rectangular opening, and the carton opening is provided with a flap with a hole, and on the side opposite to the flap, another flap is provided, and another The carton is closed by inserting the flap into the hole provided in the flap having the hole, and the upper part of the soft packaging bag protrudes from the hole and is exposed to the outside, and the soft packaging bag and it are opened. A composite container characterized in that a carton covering the part is adhered to each other in the vicinity of the opening.   The composite container according to claim 1, wherein the hole is a slit.   The composite container according to claim 1 or 2, wherein creases are provided on the body of the carton for closing the carton. The composite container according to any one of claims 1 to 3, wherein the carton is opened by separating a lead crease provided at a boundary between a flap having a hole and a body portion of the carton.