JP4417540B2 - Cartridge type container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cartridge-type container for storing viscous contents. For example, a printing machine filled with ink to send viscous ink to office printing machines, copying machines, various printers, etc. The present invention relates to a cartridge type container suitable for being mounted on a copying machine or the like. This cartridge type container is also suitable as a container for sucking and taking out viscous fluid other than ink.
[0002]
[Prior art]
Conventionally, in order to supply viscous ink to office printing machines, copiers, various printers, etc., cartridge type containers that can be replaced for each container have been used. In this cartridge-type container, when the contents are liquid or viscous ink, the ink in the container does not touch the air, and the container is folded or contracted as the ink is reduced. Thus, the inflow of air to the inside is prevented and discharged.
[0003]
As such a cartridge type container, a bag-in-box type container is widely used, and a plastic inner bag is mounted in an outer box such as a decorative cardboard and penetrates from the inner bag to the outer box. A spout is installed.
[0004]
[Problems to be solved by the invention]
Such a bag-in-box type cartridge-type container is generally satisfactory in terms of function, but as the ink in the bag is sucked from the spout, the bag irregularly shrinks and deforms in the box and sucks. However, it was insufficient to completely discharge the ink in the bag. Moreover, since a bulky material such as corrugated cardboard is used for the outer box, there is a problem that it is insufficient in terms of disposal.
[0005]
The present invention makes it possible to reduce the weight of the material, easily separate plastic and paper, and use all the ink in the tray cleanly as the ink in the bag is sucked from the spout. It is an object of the present invention to provide a cartridge type container that can be used.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has a shape in which a rectangular parallelepiped in which a plastic film layer is closely attached to the inner surface of a paper tray having a flange portion formed by assembling a blank mainly made of paper is divided into two on its diagonal surface. A tray container lower body and a tray container upper body having a shape obtained by dividing a rectangular parallelepiped having a plastic film layer in close contact with an inner surface of a paper tray having a flange portion formed by assembling a blank mainly made of paper, into two diagonal shapes. A cartridge-type container joined by flanges and provided with a spout on the side surface of the lower body of the tray container, wherein the plastic film layer on the upper side of the tray container is peelably adhered except for the flange part. A cartridge-type container.
[0008]
Further, the paper tray on the tray container lower body side is assembled from two blanks, a blank mainly consisting of the flange portion and a blank mainly consisting of the bottom surface, and the paper tray on the tray container upper body side is It is assembled from two blanks, a blank mainly composed of a flange portion and a blank mainly composed of a top surface, and both the flange portions are flat surfaces having no step.
[0009]
Further, a thermal adhesive resin is applied in advance to the inner surface of the paper tray on the tray container lower body side, or a thermal adhesive resin is applied in advance to the inner surface of the plastic film layer on the tray container lower body side. It is characterized by being.
[0010]
According to the present invention, a paper tray-shaped cartridge type container can be used to reduce the weight of the material, easily separate plastic and paper, and ink from the spout into the bag. To provide a cartridge type container in which the plastic layer on the inner surface of the upper body of the tray container peels off as it is sucked, and is further folded into the lower body of the tray container by suction, so that almost all the ink in the container can be used up. Can do.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0012]
As shown in FIG. 1, a cartridge-type container A which is an example of an embodiment of the present invention includes a tray container lower body 10 having a taper having a flange portion 11 in an opening having shape retention, The tray container upper body 20 having a taper having a flange portion 21 at an opening having shape retention and a spout 30 are formed. Further, as shown in FIG. 1, the tray container lower body 10 and the tray container upper body 20 are formed by dividing the cartridge type container A, which is a rectangular parallelepiped shape, into two diagonal parts, A rectangular parallelepiped shape is formed by joining the tray container upper body 20 with the flange portions 11 and 21.
[0013]
As shown in FIG. 2, the tray container lower body 10 has a structure in which the basic layer is made of a paper layer 10a and the plastic film layer 10b is in close contact with the inner surface, and the tray container upper body 20 is bonded by heat sealing. A cartridge type container A having a high sealing property is formed. In addition, the close contact between the paper layer 10a and the plastic film layer 10b of the tray container lower body 10 is in a strong contact state and is not peeled off during use.
[0014]
Therefore, in the tray container lower body 10, in order to make the plastic film layer 10b made of a thermoplastic resin strongly adhere to the inner surface of the paper layer 10a, a thermal adhesive layer is provided on the plastic film layer 10b, or the flange portion of the paper tray. 11, a heat adhesive resin such as a heat sealant or a hot melt material is applied in advance to the inner surfaces of the bottom surface 12, the side surface 13, the side surfaces 14, and 14. Thus, in the flange portion 11, the bottom surface 12, the side surface 13, and the side surfaces 14 and 14, in the manufacturing process of the tray container lower body 10 or the heat sealing process with the tray container upper body 20, the paper layer 10a and the plastic film layer 10b Can be closely attached.
[0015]
Moreover, the flange part 11 becomes planar shape without a level | step difference. By adopting this planar shape, it is possible to obtain a cartridge type container A having high sealing performance by heat sealing with the tray container upper body 20.
[0016]
As the paper layer 10a, for example, various paperboards and processed papers having a basis weight of about 150 to 600 g / m ² can be used. The surface of the paper layer 10a can be printed with a pattern, a display, and the like, and the aesthetics of the appearance of the cartridge type container A can be enhanced.
[0017]
Moreover, as a plastic film which consists of a thermoplastic resin which forms the plastic film layer 10b, what is necessary is just a film which consists of a thermoplastic resin which has water resistance, sealing performance, and heat-fusion property, for example, various polyethylene (PE ), Polypropylene (PP), polyvinyl chloride, polyethylene terephthalate (PET), ethylene-vinyl acetate copolymer, ionomer, ethylene-acrylic acid copolymer, polyamide, polyvinylidene chloride, polystyrene, ethylene-acetic acid Various thermoplastic resin films such as saponified vinyl copolymer, polycarbonate, polybutene, polyvinyl alcohol, and the like can be used alone or laminated. In particular, when it is desired to impart gas barrier properties to the container, for example, a laminated sheet in which a gas barrier material such as ethylene-vinyl alcohol copolymer (EVOH) is laminated on the intermediate layer, specifically, PE / EVOH / A laminated sheet having a layer structure such as PE, PP / EVOH / PE, A (amorphous) / PET / EVOH / PE can be used.
[0018]
The thickness of the plastic film layer 10b is in the range of 30 to 250 μm and is appropriately determined depending on the moldability of the film itself, the capacity of the container to be molded, the ratio of the deep drawing (depth / caliber), etc. The range is 50 to 100 μm. However, since the strength of the container is mainly given by the outer paper layer 10a, the thickness can be made extremely thinner than in the case of a plastic-made molded container. From the viewpoint of environmental friendliness, it is preferable to set the minimum necessary thickness in order to reduce the plastic composition ratio. However, if it is too thin, the barrier property is inferior and pinholes are likely to occur. Since there is a problem, it is necessary to set appropriately considering the type of film and the size of the container.
[0019]
Like the tray container lower body 10, the tray container upper body 20 has a structure in which the basic layer is made of a paper layer 20a and the plastic film layer 20b is in close contact with the inner surface, as shown in FIG. The cartridge type container A having a high sealing property is formed by joining with a heat seal with No. 10. The difference from the tray container lower body 10 is that the paper layer 10a and the plastic film layer 10b of the tray container lower body 10 are in strong contact with each other and do not peel off during use. The flange portion 21 can be easily peeled off during use.
[0020]
Therefore, in the tray container upper body 20, in order to make the plastic film layer 20b made of a thermoplastic resin on the inner surface of the paper layer 20a easily peelable except for the flange portion 21, the tray container lower body 10 differs from the tray container lower body 10, A thermal adhesive layer is not provided on the plastic film layer 20b, or a thermal adhesive resin such as a heat sealant or a hot melt material is not applied in advance to the portion excluding the flange portion 21 of the paper tray. Thus, the top surface 22, the side surface 23, and the side surfaces 24, 24 excluding the flange portion 21 are separated from the paper layer 20a in the manufacturing process of the tray container upper body 20 or the heat sealing process with the tray container lower body 10. The plastic film layer 20b can be adhered in a peelable state.
[0021]
As the paper layer 20a and the plastic film layer 20b, the same material as that of the tray container lower body 10 can be used.
[0022]
Also in the tray container upper body 20, the flange portion 21 needs to have sufficient adhesion strength because it is heat-sealed and sealed with the tray container lower body 10. For this purpose, a heat adhesive resin such as a heat sealant or a hot melt material is applied to the paper layer 20a of the flange portion 21 in advance. Thus, in the flange portion 21, the paper layer 20a and the plastic film layer 20b can be thermally bonded in the manufacturing process of the tray container upper body 20 or the heat sealing process with the tray container lower body 10.
[0023]
Further, the flange portion 21 has a flat shape without a step, similarly to the flange portion 11 of the tray container lower body 10. By adopting this planar shape, it is possible to obtain a cartridge type container A having high sealing performance by heat sealing with the tray container lower body 10.
[0024]
The spout 30 is provided on the rectangular side surface of the tray container lower body 10 of the cartridge type container A. As shown in FIG. 3, the spout 30 has a flange portion 30a that contacts the inner surface of the cartridge type container A, and the cap 31 is attached. Is done. Moreover, the obstruction | occlusion prevention rib 30b can also be provided in the inner side of the spout 30. FIG. The spout 30 and the cap 31 can be manufactured by injection molding using a resin such as PP or PE.
[0025]
Next, an example of a process for actually manufacturing the cartridge type container A will be described.
[0026]
First, the tray container lower body 10 is prepared. As shown in FIG. 4, the blank 10A including the flange portion 11 and the reinforcing piece and the blank 10B including the bottom surface 12, the side surface 13, and the side surfaces 14 and 14 are provided. Make a blank. About this blank, if it is the shape of the blank which can form the tray which has a rectangular parallelepiped shape by the diagonal surface and can form a tray which has a flange, it will not be limited to the blank 10A shown here and the blank 10B. In the state of the blank 10A and the blank 10B, a thermal adhesive resin is applied to the inner surface. When not applied to the blank, a heat-adhesive resin is applied to the plastic film layer 10b side.
[0027]
Next, as shown in FIG. 5A, the blank 10A and the blank 10B are placed in a mold for vacuum or pressure forming, and a paper tray comprising a paper layer 10a constituting the tray container lower body 10 in the mold. Assemble. Then, as shown in FIG. 5B, the paper layer is formed by bringing the flange portion 11 and the bottom surface 12, the side surface 13, and the side surfaces 14 and 14 of the paper tray into close contact with a plastic film made of a thermoplastic resin in a heated state. The tray container lower body 10 in a state where the plastic film layer 10b is in close contact with the inner surface of 10a can be manufactured.
[0028]
Next, the tray container upper body 20 is manufactured. Two blanks 20A and 20B having the same shape as the tray container lower body 10 are produced. A thermal adhesive resin is applied to the inner surface of the blank 20 </ b> A mainly including the flange portion 21. The blank 20A and the blank 20B are placed in a mold for vacuum or pressure forming, and a paper tray composed of a paper layer 20a constituting the tray container lower body 2 is assembled in the mold, and a flange portion constituting the paper tray. 21, the top surface 22, the side surface 23, the side surfaces 24, 24 are brought into close contact with a plastic film layer 20 b made of a thermoplastic resin in a heated state so that the plastic film layer 20 b is peeled off the inner surface of the paper layer 20 a except for the flange portion 21 The tray container upper body 20 can be manufactured in a state where it is in close contact with it.
[0029]
Subsequently, a spout 30 is provided on the side surface 13 of the tray container lower body 10.
[0030]
Further, by thermally sealing the flange portion 11 of the tray container lower body 10 and the flange portion 21 of the tray container upper body 20, the cartridge type container A having high sealing performance can be manufactured. Thus, in the cartridge type container A provided with the spout 30, the contents can be filled from the spout 30.
[0031]
The cartridge type container described above is used as follows.
[0032]
The case where the ink container is used as an ink container to be supplied to an office printing machine will be described. To fill the cartridge container A with the high viscosity ink B, the tray container upper body 20 is heat sealed and sealed. Perform from spout 30. The cartridge type container A filled with the ink B is mounted on the printing machine. When the ink B is filled in the cartridge type container A, the shape is as shown in FIG. 6A. After the cap 31 is removed, the cartridge type container A is sucked from the spout 30 with a plunger pump or the like. Ink B in A is taken out and supplied to the printing press. As shown in FIG. 6B, the plastic film layer 20b that has been in close contact with the inner surface of the tray container upper body 20 peels off little by little as the ink is consumed. As shown in FIG. 6C, the tray container lower body 10 The space for storing the ink B in the cartridge type container A is reduced, and the ink B is consumed almost without remaining. Since there is a space near the spout 30 where the suction force acts, the last ink B gathers there and is sucked out.
[0033]
After use, as shown in FIG. 7, the flange portion and the main body portion of the tray container upper body 20 can be easily separated, and the plastic film layer folded in the tray container lower body 10 10b, 20b and the plastic part of the spout 30 and the paper part can be separated, and can be separated and discarded.
[0034]
【The invention's effect】
As described above, according to the present invention, a paper tray-shaped cartridge type container can be easily set in a printing machine and the like, and the weight of the material can be reduced. In addition, as the ink in the bag is sucked from the spout, the plastic film layer that has adhered to the inner surface of the upper body of the tray container is gradually peeled off. It is possible to provide a cartridge-type container that can be completely used up by being folded into the tray.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a cartridge type container of the present invention.
FIG. 2 is a schematic sectional view showing an embodiment of the cartridge type container of the present invention.
FIG. 3 is a schematic sectional view showing a spout of the cartridge type container of the present invention.
FIG. 4 is a development view of a blank of a tray container lower body and a tray container upper body of an embodiment of the cartridge type container of the present invention.
FIG. 5 is a schematic view showing a process of producing a tray container lower body and a tray container upper body of an embodiment of the cartridge type container of the present invention.
FIG. 6 is a schematic cross-sectional view illustrating a method used by an embodiment of the cartridge type container of the present invention.
FIG. 7 is a schematic cross-sectional view showing a cartridge-type container according to an embodiment of the present invention after use.
[Explanation of symbols]
A Cartridge type container B Ink (contents)
10 Tray container lower body 10a Paper layer 10b Plastic layer 10A Blank 10B Blank 11 Flange (Tray container lower body)
12 Bottom surface 13 Side surface 14 Side surface 20 Tray container upper body 20a Paper layer 20b Plastic layer 20A Blank 20B Blank 21 Flange (Tray container upper body)
22 Top surface 23 Side surface 24 Side surface 30 Outlet 30a Flange 30b Rib 31 Cap

Claims (4)

A tray container lower body in which a rectangular parallelepiped in which a plastic film layer is closely adhered to the inner surface of a paper tray having a flange portion formed by assembling a blank made of paper as a main material, and a blank made mainly of paper A rectangular parallelepiped having a plastic film layer adhered to the inner surface of a paper tray having a flange portion assembled with the upper portion of the tray container divided into two by its diagonal surface is joined by the flange portions, and the tray container lower body A cartridge-type container having a spout on the side surface,
The cartridge-type container, wherein the plastic film layer on the tray container upper body side is in close contact with each other except the flange portion. The paper tray on the tray container lower body side is assembled from two blanks, a blank mainly composed of the flange portion and a blank mainly composed of the bottom surface, and the paper tray on the tray container upper body side is assembled to the flange portion. The cartridge type container according to claim 1, wherein the two flange portions are flat surfaces having no level difference. 2. The cartridge type container according to claim 1, wherein a thermal adhesive resin is applied in advance to the inner surface of the paper tray on the tray container lower body side. 2. The cartridge type container according to claim 1, wherein a heat-adhesive resin is applied in advance to a surface of the plastic film layer on the tray container lower body side which is thermally bonded to the inner surface of the paper tray .

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