JP2005096811A - Composite container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite container formed by combining a plastic-made inner vessel and a cover lid with a rectangular parallelopiped sleeve, which is light-weighted, easy to scrape off even a viscous substance by a brush, excellent in piling strength and loading ability, free from buckling due to a swollen barrel, and easy to dispose of after contents are removed. <P>SOLUTION: The composite container D consists of a combination of a plastic-made rectangular truncated pyramid inner vessel A and a cover lid B, and a rectangular parallelopiped sleeve C in which the vessel A is put in. A sleeve lock rib 1 for fixing the inner vessel A and the sleeve C is provided on the external surface of the inner vessel A. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a composite container in which a plastic inner container, a covering lid, and a square sleeve are combined, and more specifically, food such as jam, boiled and high-viscosity syrup, adhesive that is non-food, etc. The present invention relates to a composite container in which a plastic inner container, a covering lid, and a square cylindrical sleeve are combined as an alternative container to replace the metal can containing the high-viscosity viscous product.

  In the field of containers that store foods such as jams, boiled fish, high-viscosity syrup, and high-viscosity viscous products such as non-food adhesives, paints, and chemicals, metals that have traditionally been represented by steel cans and tin cans There are used cans, plastic molded containers, composite containers in a bag-in-box configuration in which an inner container made of a plastic inner bag or a paper inner bag and a cardboard outer box are combined.

  In the case of a metal can, particularly in the case of a large container, a special opening device is required to fully open the top surface of the container when taking out the contents.

  Since metal cans are circulated and used in a can-made state, there is a large inventory space when new cans are stored in warehouses, etc., and empty cans are transported, making it a popular air transport. Although there are difficulties such as poor transport efficiency, it is the most complete container in terms of content takeout, stacking strength, and loadability.

  However, in recent years, depending on the contents, handling at the time of disposal has been highlighted as a problem, especially when disposing of used metal cans after the contents have been taken out, the contents remain fixed on the inner surface of the container. In this state, there is a problem of not getting on the container recycling route.

  In such a case, since it is treated as an industrial waste rather than a resource waste, not only the disposal cost is high, but it is also a social problem as a neglected industrial waste, and the appearance of an alternative container is awaited.

  Therefore, as an alternative container, for example, a plastic molded container, a plastic inner bag, a composite container in which a paper inner bag and a cardboard outer box are combined, and the like are used in part in the industry for manufacturing food and industrial products.

  First, a plastic molded container is made of a container body and a cover lid, for example, synthetic resin such as polyethylene resin, polypropylene resin, polyethylene terephthalate resin, vinyl chloride resin, vacuum molding method, injection molding method (injection molding method), etc. It is a container molded using.

  In the case of such a plastic single container, since the buckling is received by the plastic body and the weight when stacked with the cover lid is received, the thickness of the container is increased, so the weight of the entire container Becomes heavy.

In addition, since the container is thick, it is difficult to reduce the volume by crushing, and disposal is not easy. In recent years, the increase in waste has become a major social problem. Amid the environmental problems as well as resource saving, containers that reduce the amount of plastic used are desired.

  As a countermeasure, a composite container in the form of a bag-in-box that combines a plastic inner bag with a plastic spout or an inner container made of paper and a cardboard outer box, Stores the contents directly and protects the quality, while the outer box mainly protects the impact from the outside of the inner container, and also has the role of storage and transportability.

  Such composite containers are lighter in weight than metal cans and plastic molded containers, and can be folded small before storing their contents, resulting in lower distribution costs such as transportation and storage costs. After use, the outer box can be recovered and reused as a pulp and paper resource.

  Although the inner container is thin and easy to crush and incinerate easily, as a method of taking out the contents, an inlet for filling the contents is attached to the inner bag in advance, and the inlet takes out the contents. It is a mechanism to become an exit.

  Therefore, because the structure has the same inlet and outlet for the contents, the outlet does not become fully open when the contents are taken out, especially when the contents are sticky and cannot be scraped off. There is a problem.

  Further, there is a problem that it is not easy to attach the plug for filling and taking out such contents to the inner bag, the material cost is high, and it is not economical.

  Even if the contents outlet is in a fully open shape, when the contents in the inner container are reduced, the inner container is made of a plastic inner bag or a paper inner bag having no rigidity. The inner surfaces of the containers are in close contact with each other, and it becomes difficult to scrape the contents.

  As described above, plastic molded containers and composite containers combining plastic inner bags or paper inner bags and cardboard outer boxes have different problems. When the specific gravity of the object is large or when the capacity is increased, the object becomes heavy, and the internal pressure is applied to the body portion of the container due to the weight of the contents, and a body swelling phenomenon occurs.

  In other words, in addition to the static pressure during storage in the warehouse, the contents vibrate due to vibration during transportation or swinging, and this pressure causes repeated bending loads on the barrel surface of the container. The part surface is prone to fatigue failure, and a swollen phenomenon occurs.

  In addition, when the containers are stacked in multiple stages, the weakest part of the four torso surfaces of the container is deformed by the loading load, the torso swell is accelerated, and the torso surface is damaged (buckling phenomenon). There is.

  As mentioned above, composite containers made of plastic molded containers, plastic inner bags or paper inner bags and cardboard outer boxes have their merits and demerits, and they are not perfect substitutes for metal cans. is there.

The present invention solves the problems of the related art, and is a composite container in which a plastic quadrangular pyramid shaped inner container, a cover lid, and a square cylindrical sleeve that can be loaded with the inner container are combined. The composite container is lightweight, easy to scrape even with sticky material, has excellent stacking strength and loadability, does not buckle due to swelling, and is easy to dispose of after the contents are taken out It is an object of the present invention to provide a composite container in which a plastic inner container, a cover lid, and a square cylindrical sleeve are combined.

  The present invention has been made to solve the above-described problems, and the invention according to claim 1 of the present invention includes a plastic quadrangular frustum-shaped inner container A, a cover lid B, and the contents thereof. A composite container D combined with a rectangular tube sleeve C into which the container A can be loaded, and for locking the sleeve for fixing the inner container A and the rectangular tube sleeve C to the outer surface of the inner container A The composite container is characterized in that a rib 1 is provided.

  The invention according to claim 2 of the present invention is the composite container according to claim 1, wherein the inner container A is formed by an injection molding method.

  The invention according to claim 3 of the present invention is the composite container according to claim 1 or 2, wherein the inner container A is made of a synthetic resin or a biodegradable synthetic resin.

  The invention according to claim 4 of the present invention is the composite container according to claim 1, wherein the covering lid B is provided with stacking ribs 6 at the four corners of the top surface part 5. is there.

  The invention according to claim 5 of the present invention is the composite container according to claim 1 or 4, wherein the cover lid B is a triangular opening lid 7 comprising a top surface portion 5 and a half cut portion h and a hinge portion i. Is a composite container.

  The invention according to claim 6 of the present invention is the composite container according to claim 1, 4 or 5, wherein the covering lid B is provided with a brush storage space portion 11 on the top surface portion 5. It is a container.

  The invention according to claim 7 of the present invention is the composite container according to claim 1, wherein the cover lid B is formed by an injection molding method.

  The invention according to claim 8 of the present invention is the composite container according to claim 1, 4, 5, 6, or 7, wherein the covering lid B is made of a synthetic resin or a biodegradable synthetic resin. It is a container.

  The invention according to claim 9 of the present invention is the composite container according to any one of claims 1 to 3, wherein the inner container A is disposed on the inside of the stacking rib 6 of the cover lid B at the four corners of the opening tip. It is a composite container characterized by being provided with protruding fitting ribs 2 for fitting with the recesses.

  The invention according to claim 10 of the present invention is the composite container according to claim 1, wherein the rectangular tube-shaped sleeve C includes a horizontal ruled line e used at the time of packaging at the bottom center side end of the rectangular side portion 20. A U-shaped band fixing portion 4 formed by a vertical perforation f hanging below the both ends of the ruled line e is provided.

  The invention according to claim 11 of the present invention is the composite container according to claim 1 or 10, wherein the rectangular sleeve C is made of cardboard.

The invention according to Claim 12 of the present invention is the composite container according to any one of Claims 1 to 11, wherein the composite container D is used for stacking the lower end inner surface of the rectangular tube-shaped sleeve C and the cover lid B. The composite container is characterized in that the outer surface of the rib 6 is fitted and stacked.

  The present invention is a composite container in which a plastic square pyramid shaped inner container and a cover lid, and a paper-made square tube sleeve that can be loaded with the inner container, are combined on the outer surface of the inner container, Sleeve locking ribs for fixing the inner container and the rectangular tube sleeve are provided, and the covering lid is provided with stacking ribs at four corners of the top surface portion, and a triangular spout on the top surface portion. An opening lid and a brush storage space are provided, and four fitting ribs for fitting with concave portions inside the stacking rib of the cover lid are provided at the four corners of the opening tip of the inner container. Therefore, the composite container is lightweight and easy to scrape even with sticky objects, has excellent stacking strength and loadability, and does not buckle due to torsion, and after the contents are taken out, it is discarded. Easy to make plastic four Frustum shape of the inner container and Kabusebuta, and to provide a composite container which combines the square tube-shaped sleeve capable loaded inner container.

  Next, an embodiment of the composite container D according to the present invention will be described in detail with reference to FIGS.

  FIG. 1 is a perspective view showing an embodiment of a state in which a plastic quadrangular pyramid-shaped inner container A, a covering lid B, a square cylindrical sleeve C, and a brush 10 constituting a composite container D according to the present invention are set. 2 is a perspective view showing a packaging state in which the composite container D according to the present invention is bound by the band 12, and FIG. 3 is an embodiment of a rectangular sleeve C constituting the composite container D according to the present invention. FIG. 4 is a perspective view showing an embodiment of a covering lid B constituting the composite container D according to the present invention, FIG. 5 is a plan view of FIG. 4, and FIG. FIG. 7 is a perspective view illustrating a state in which the unsealing lid 7 of the top surface portion 5 of the covering lid B of the composite container D according to the present invention is opened and the spout 7a is provided, and FIG. 7 is a covering lid constituting the composite container D according to the present invention. It is a top view which shows one Example of the brush 10 accommodated in the brush storage space part 11 of B top surface part 5. FIG. 8 is a side sectional view showing a state in which the inner container A and the cover lid B constituting the composite container D according to the present invention are fitted and sealed inner, and FIG. 9 shows the composite container D according to the present invention. 3 is a side sectional view showing a locked state between the inner container A and the square cylindrical sleeve C. FIG.

  The present invention is a composite container D in which a plastic quadrangular pyramid shaped inner container A, a cover lid B, and a square cylindrical sleeve C into which the inner container A can be loaded are combined, as shown in FIG. In addition, the inner container A is provided with a sleeve locking rib 1 for fixing the inner container A and the square tubular sleeve B to the outer surface of the inner container A.

  The sleeve locking rib 1 also serves to stack the inner container A alone, in addition to the purpose of fixing the inner container A and the rectangular tubular sleeve B.

  Further, the container A has projection-like fitting ribs for fitting with concave portions inside the stacking rib 6 provided at the four corners of the top surface portion 5 of the cover lid B at the four corners of the top surface opening. 2 is provided.

  The stacking rib 6 of the cover lid B and the protruding fitting rib 2 of the container A are fitted to each other and further sealed, thereby achieving the purpose of being completely sealed and storing the contents. The

  The inner container A is molded by a vacuum molding method, an injection molding method, or the like. When a complicated rib such as the sleeve lock rib 1 is formed on the side wall of the inner container A, the injection molding method is used. It is preferable to do.

  The injection molding method is a kind of plastic molding technique, in which mainly heat and pressure are applied to a thermoplastic synthetic resin, which is dissolved (plasticized) to obtain an appropriate fluidized state. This is a molding method in which it is poured into a closed mold at a high speed under an injection pressure) and sufficiently solidified to be taken out.

  As described above, by providing the sleeve locking rib 1 on the side wall of the inner container A, the inner container A and the rectangular sleeve C can be fixed without using an adhesive. It is advantageous and can be easily disassembled.

  Moreover, as a molding material used for the inner container A, a synthetic resin or a biodegradable synthetic resin is used. In the case of a synthetic resin, for example, polyethylene (low density polyethylene, medium density polyethylene, high density polyethylene, Linear low-density polyethylene), polyolefin resins such as polypropylene and polybutene, polyester resins, polyamide resins, acrylic resins, polyvinyl chloride resins, polystyrene resins, polyvinylidene chloride resins, ethylene-vinyl acetate Various resins such as polymer resin, polyvinyl alcohol resin, polyvinyl acetate resin, polyacetal resin, polyurethane resin, polycarbonate resin, fluorine resin, ionomer resin, etc. can be used, but moldability Considering content preservation and economy Linear low density polyethylene resin (L-LDPE), high density polyethylene resin (HDPE), any one of a polypropylene resin (PP) is preferable.

  Next, in the case of a biodegradable synthetic resin, examples of the microorganism include biopolyester, bacterial cellulose, and microbial polysaccharide (pullulan, curdlan, etc.).

  Chemical synthesis systems include aliphatic polyesters (polycaprolactone, polybutylene succinate, polyethylene succinate, polyglycolic acid, polylactic acid, etc.), polyvinyl alcohol, and polyamino acids.

  Natural products include chitosan / cellulose, starch, cellulose acetate and the like, and composite materials include starch / aliphatic polyester and starch / polyvinyl alcohol.

  By using any one of these, it is biodegraded by aerobic microorganisms and degrading enzymes that inhabit soil and compost, and finally decomposes into carbon dioxide and water. There are advantages such as being able to solve processing problems.

  Next, as shown in FIG. 4 and FIG. 5, the cover lid B is formed by injection molding, and stacking ribs 6 are provided at the four corners of the top surface portion 5.

  The stacking ribs 6 provided at the four corners of the cover lid B are provided corresponding to the protruding fitting ribs 2 provided at the four corners of the inner container A.

  That is, when the cover B is put on the top opening of the inner container A, the protruding fitting ribs 2 provided at the four corners of the inner container A and the recesses inside the stacking rib 6 of the cover B And are in a fixed state.

  Further, as shown in FIG. 6A, the cover lid B is provided with a triangular opening lid 7 composed of a half cut portion h and a hinge portion i at an arbitrary corner of the top surface portion 5.

The opening lid 7 is provided with a knob 8 at the center, and a knob holding part 9 is provided adjacent to the knob 8 of the triangular opening lid 7.

  By providing the opening lid 7 having such a structure, as shown in FIG. 6 (b), the half-cut portion h is cut with a cutter knife or the like, and is bent outward with a hinge portion i to become a spout 7a. Can be provided.

  Further, the knob 8 provided at the center of the triangular opening lid 7 facilitates the opening after the opening lid 7 is cut, and after opening and folding at the hinge portion i, the knob 8 can be locked to the knob holding portion 9 having a hollow shape so that the opened lid does not return.

  Next, when the opened lid is resealed, a gummed tape or the like can be attached to the position of the hinge part i and resealed.

  Further, a brush storage space portion 11 corresponding to the shape of the brush 10 composed of the grip portion 10a and the brush portion 10b as shown in FIG. 7 is provided at an arbitrary corner of the top surface portion 5 of the cover lid B. ing.

  The brush storage space portion 11 is composed of a grip handle storage portion 11a for storing the grip handle portion 10a and a brush storage portion 11b for storing the brush portion 10b.

  After the contents are taken out from the spout 7a of the composite container D, if the contents are high in viscosity, the residual liquid inevitably remains in the container D. It can be completely removed from the inner container A, opened on the entire surface, and taken out.

  At that time, after removing the remaining liquid from the brush storage space portion 11 of the cover lid B using the removed brush 10, the used brush 10 is rubbed against the stacking rib 6 provided on the cover lid B. The residual liquid attached can be removed.

  Next, the cover lid B is made of a synthetic resin or a biodegradable synthetic resin like the inner container A. Examples of the synthetic resin include polyethylene (low density polyethylene, medium density polyethylene, high density polyethylene, linear low Density polyethylene), polyolefin resins such as polypropylene and polybutene, polyester resins, polyamide resins, acrylic resins, polyvinyl chloride resins, polystyrene resins, polyvinylidene chloride resins, ethylene-vinyl acetate copolymer resins, Various resins such as polyvinyl alcohol resin, polyvinyl acetate resin, polyacetal resin, polyurethane resin, polycarbonate resin, fluorine resin, ionomer resin, etc. can be used, but flexibility, moldability, Consider low content density and save the contents. Ethylene resins (LDPE), or linear low-density polyethylene resin (L-LDPE) is preferred.

  Next, in the case of a biodegradable synthetic resin, examples of the microorganism include biopolyester, bacterial cellulose, and microbial polysaccharide (pullulan, curdlan, etc.).

  Chemical synthesis systems include aliphatic polyesters (polycaprolactone, polybutylene succinate, polyethylene succinate, polyglycolic acid, polylactic acid, etc.), polyvinyl alcohol, and polyamino acids.

  Natural products include chitosan / cellulose, starch, cellulose acetate and the like, and composite materials include starch / aliphatic polyester and starch / polyvinyl alcohol.

  By using any one of these, it is biodegraded by aerobic microorganisms and degrading enzymes that inhabit soil and compost, and finally decomposes into carbon dioxide and water. There are advantages such as being able to solve processing problems.

  Next, as shown in FIG. 3, the rectangular cylindrical sleeve C uses four-sided corrugated cardboard made of AB flute having a high buckling strength, and has four rectangular side portions 20 connected through a crease g. The glue margin 21 is connected to one end of the side part 20 via a crease g, and the rectangular handle 3 is provided on the four rectangular side parts 20.

  Further, a horizontal ruled line e used for packing at the bottom center side end of the four side parts 20 and a U-shaped perforation formed by a vertical perforation f below the both end parts of the ruled line e. A punching blank provided with the band fixing portion 4 is manufactured, and the blank is manufactured in a sleeve shape.

  As shown in FIG. 2, the band fixing part 4 is a package of a composite container D in which a plastic inner container A, a cover lid B, and a square sleeve C are combined, wrapped with a band 12 made of polypropylene or the like. This is used to prevent the lower side of the composite container D from being deformed.

  As described above, the present invention is a composite in which a plastic inner container A, a cover lid B, and a rectangular tube sleeve C are produced in separate steps, and then combined into one as shown in FIG. One feature of the container D is that a sleeve locking rib 1 for fixing the inner container A and the square cylindrical sleeve C is provided on the outer surface of the inner container A.

  As shown in FIG. 9, the sleeve locking rib 1 is configured such that the side wall portion 14 of the rectangular tubular sleeve C made of cardboard or the like enters the flange portion 13 of the inner container A, so that the sleeve lock of the inner container A is obtained. Since the undercut portion 15 of the rib 1 has a mechanism for biting into and locking the inner surface of the corrugated cardboard side wall portion 14, an adhesive for fixing the inner container A and the rectangular tube sleeve C is unnecessary. is there.

  Next, stacking ribs 6 are provided at the four corners of the top surface portion 5 of the cover B, and the lower end inner surface of the square sleeve C and the outer surface of the stacking rib 6 of the cover B are fitted and stacked. Therefore, the square cylindrical sleeve C takes over the load weight due to stacking during distribution such as warehouse storage or transportation of products using the composite container D of the present invention.

  Therefore, since the covering lid B does not require a stacking strength, the covering lid B itself may be made of a thin and soft material. Therefore, as shown in FIG. The inner surface of the concave portion of the stacking rib 6 of the covering lid B is completely sealed by the inner sealing method, so that the inner sealing is effective and the packing property can be provided.

  As a method of sealing by the inner sealing method, for example, the bonding can be performed by a known heat sealing method such as an impulse sealing method, a high frequency sealing method, an ultrasonic sealing method or the like.

  Furthermore, since the covering lid B can use such a thin and soft material, the spout 7a for taking out the contents can be easily produced.

  Next, as shown in FIG. 2, the composite container D is provided with the holding property of the composite container D by winding a band 12 made of polypropylene or the like, and the handle 12 is a band 12 that is cross-bound in a cross shape. It can also be substituted.

The composite container D of the present invention thus produced is covered with the side wall strength of the rectangular sleeve C made of corrugated cardboard, etc., as compared with the conventional plastic molded container. Therefore, the container A main body may be thin.

  Further, since the cover B is similarly covered by the rectangular sleeve C, a soft material can be used and the cover can be made thin.

  Accordingly, the overall weight of the composite container D becomes light, and the container D can separate the inner container A and the rectangular tube sleeve C. Therefore, when disposing the composite container D, the inner container By separating A and the square cylindrical sleeve C to reduce the volume and crush each, the disposal problem can be solved.

  Further, in comparison with a composite container in which a plastic inner bag or a paper inner bag and a cardboard outer box are combined, the composite container D of the present invention has an inner container A having a quadrangular frustum shape. Since the gap between the outer wall surface of the inner container A and the inner wall surface of the rectangular tubular sleeve C is separated downward, the swelling due to the weight of the contents does not affect the inner wall surface of the rectangular cylindrical sleeve C.

  Even if the contents are reduced, the inner container A is a molded product made of plastic and therefore does not adhere as in the case of a conventional plastic inner bag or paper inner bag.

  Further, since the container A has rigidity, it is easy to scrape the contents, and the container A is not torn even if a brush is used.

  As described above, the composite container D in which the plastic inner container A according to the present invention, the cover B, and the square sleeve C are combined is lightweight and easily scraped with the brush 10 even if it is a sticky material, and has a stacking strength. In addition, it has excellent loadability and is free from buckling due to swelling, and after taking out the contents, the plastic inner container A, cover lid B, and rectangular tube sleeve C are easy to dispose of. Composite container D.

  Next, an Example demonstrates this invention concretely in detail.

  In order to produce a composite container D (outer dimensions: width 285 mm × depth 285 mm × height 340 mm) in which the plastic inner container A of the present invention, the covering lid B, and the square cylindrical sleeve C are combined, As shown in FIG. 1, the inner container A uses a linear low density polyethylene resin (L-LDPE), and has projection-shaped fitting ribs 2 at the four corners of the top surface opening, and the inner container A. The rib 1 for sleeve locking was provided on the side wall of the inner container, and the inner container body was manufactured by an injection molding method so that the side wall thickness of the inner container body was 0.5 mm.

  Next, as shown in FIG. 3, the rectangular tubular sleeve C uses double-sided cardboard made of AB flute, and four rectangular side portions 20 are connected via a fold line g. The glue margin 21 is connected to one side end through a crease g, and the rectangular handle 3 is provided on the four rectangular side parts 20.

  Further, a punching blank having a U-shaped band fixing portion 4 provided at the center end on the bottom side of the four rectangular side portions 20 is manufactured, and the blank is formed into a sleeve shape as shown in FIG. Thus, a rectangular tube sleeve C was produced.

Next, as shown in FIGS. 4 and 5, the cover B uses a low-density polyethylene resin (LDPE), is provided with stacking ribs 6 at the four corners of the top surface portion 5, and a knob portion is provided on the top surface portion 5. A triangular opening lid 7 with 8 is provided, a knob holding portion 9 is provided at an adjacent portion corresponding to the knob portion 8, and a brush storage space portion 11 is provided at one corner. It was produced by an injection molding method so that the top thickness was 0.5 mm.

  As shown in FIG. 1, the inner container A and the rectangular tube sleeve C are combined and filled with a high-viscosity adhesive, and then covered with a covering lid B. As shown in FIG. The composite container D in a state where it can be bundled and the product can be shipped is finished.

  Using such a composite container D, the composite container can be taken out from the spout 7a, scraped by the brush 10 when the cover B is removed and the entire surface is opened, the stacking strength and loadability, and the swelling of the body The buckling phenomenon due to, and the disposal property after taking out the contents were tested.

  As a result, the composite container D in which the plastic inner container A of the present invention, the cover B, and the square sleeve C are combined can be taken out from the spout 7a even if it is lightweight and highly viscous. If B was removed and the entire surface was opened, scraping with the brush 10 was easy.

  In addition, the stacking strength and loadability are excellent, and there is no buckling phenomenon due to the swollen body, and after the contents are taken out, the plastic inner container A, the covering lid B, and the square cylindrical sleeve C can be easily formed. It was easy to dispose of it by compressing it small.

  In order to produce a composite container D (outside dimensions of width 285 mm × depth 285 mm × height 340 mm), which is a combination of the plastic inner container A of the present invention, the cover lid B, and the square cylindrical sleeve C The container A was made of high-density polyethylene resin (HDPE), the covering lid B was made of low-density polyethylene resin (LDPE), and the others were the same as in Example 1.

  Using such a composite container D, taking out of the composite container D from the spout 7a, scraping by the brush 10 when the cover B is removed and opening the entire surface, stacking strength and loadability, The buckling phenomenon due to blistering and the disposal property after taking out the contents were tested.

  As a result, the composite container D in which the plastic inner container A of the present invention, the cover B, and the square sleeve C are combined can be taken out from the spout 7a even if it is lightweight and highly viscous. If B was removed and the entire surface was opened, scraping with the brush 10 was easy.

  In addition, the stacking strength and loadability are excellent, and there is no buckling phenomenon due to the swelling of the trunk. After the contents are taken out, the plastic inner container A, the cover lid B, and the square cylindrical sleeve C are combined. The composite container D can be easily separated, and it is easily compressed and discarded.

  In order to produce a composite container D (outside dimensions of width 285 mm × depth 285 mm × height 340 mm), which is a combination of the plastic inner container A of the present invention, the cover lid B, and the square cylindrical sleeve C The container A used polypropylene resin (PP), and the cover lid B used low density polyethylene resin (LDPE).

  Using such a composite container D, taking out of the composite container D from the spout 7a, scraping by the brush 10 when the cover B is removed and opening the entire surface, stacking strength and loadability, The buckling phenomenon due to blistering and the disposal property after taking out the contents were tested.

  As a result, the composite container D in which the plastic inner container A of the present invention, the cover B, and the square sleeve C are combined can be taken out from the spout 7a even if it is lightweight and highly viscous. If B was removed and the entire surface was opened, scraping with the brush 10 was easy.

  In addition, the stacking strength and loadability are excellent, and there is no buckling phenomenon due to the swelling of the trunk. After the contents are taken out, the plastic inner container A, the cover lid B, and the square cylindrical sleeve C are combined. The composite container D can be easily separated, and it is easily compressed and discarded.

  In order to produce a composite container D (outside dimensions of width 285 mm × depth 285 mm × height 340 mm), which is a combination of the plastic inner container A of the present invention, the cover lid B, and the square cylindrical sleeve C The vessel A used a linear low-density polyethylene resin (L-LDPE), the covering lid B used a linear low-density polyethylene resin (L-LDPE), and the others were the same as in Example 1.

  Using such a composite container D, taking out of the composite container D from the spout 7a, scraping by the brush 10 when the cover B is removed and opening the entire surface, stacking strength and loadability, The buckling phenomenon due to blistering and the disposal property after taking out the contents were tested.

  As a result, the composite container D in which the plastic inner container A of the present invention, the cover B, and the square sleeve C are combined can be taken out from the spout 7a even if it is lightweight and highly viscous. If B was removed and the entire surface was opened, scraping with the brush 10 was easy.

  In addition, the stacking strength and loadability are excellent, and there is no buckling phenomenon due to the swelling of the trunk. After the contents are taken out, the plastic inner container A, the cover lid B, and the square cylindrical sleeve C are combined. The composite container D can be easily separated, and it is easily compressed and discarded.

  In order to produce a composite container D (outside dimensions of width 285 mm × depth 285 mm × height 340 mm), which is a combination of the plastic inner container A of the present invention, the cover lid B, and the square cylindrical sleeve C The vessel A used a high-density polyethylene resin (HDPE), the covering lid B used a linear low-density polyethylene resin (L-LDPE), and the others were the same as in Example 1.

  Using such a composite container D, taking out of the composite container D from the spout 7a, scraping by the brush 10 when the cover B is removed and opening the entire surface, stacking strength and loadability, The buckling phenomenon due to blistering and the disposal property after taking out the contents were tested.

  As a result, the composite container D in which the plastic inner container A of the present invention, the cover B, and the square sleeve C are combined can be taken out from the spout 7a even if it is lightweight and highly viscous. If B was removed and the entire surface was opened, scraping with the brush 10 was easy.

  In addition, the stacking strength and loadability are excellent, and there is no buckling phenomenon due to the swelling of the trunk. After the contents are taken out, the plastic inner container A, the cover lid B, and the square cylindrical sleeve C are combined. The composite container D can be easily separated, and it is easily compressed and discarded.

  In order to produce a composite container D (outside dimensions of width 285 mm × depth 285 mm × height 340 mm), which is a combination of the plastic inner container A of the present invention, the cover lid B, and the square cylindrical sleeve C The container A was made of polypropylene resin (PP), the covering lid B was made of linear low density polyethylene resin (L-LDPE), and the others were the same as in Example 1.

Using such a composite container D, taking out of the composite container D from the spout 7a, scraping by the brush 10 when the cover B is removed and opening the entire surface, stacking strength and loadability, The buckling phenomenon due to blistering and the disposal property after taking out the contents were tested.

  As a result, the composite container D in which the plastic inner container A of the present invention, the cover B, and the square sleeve C are combined can be taken out from the spout 7a even if it is lightweight and highly viscous. If B was removed and the entire surface was opened, scraping with the brush 10 was easy.

  In addition, the stacking strength and loadability are excellent, and there is no buckling phenomenon due to the swelling of the trunk. After the contents are taken out, the plastic inner container A, the cover lid B, and the square cylindrical sleeve C are combined. The composite container D can be easily separated, and it is easily compressed and discarded.

It is a perspective view which shows one Example of the state which sets the plastic-made square frustum-shaped inner container which comprises the composite container which concerns on this invention, a covering lid, a square cylindrical sleeve, and a brush. It is a perspective view which shows the packing state which bound the composite container which concerns on this invention with the band. It is an expanded view which shows one Example of the square cylindrical sleeve which comprises the composite container which concerns on this invention. It is a perspective view which shows one Example of the covering lid which comprises the composite container which concerns on this invention. FIG. 5 is a plan view of FIG. 4. It is a perspective view explaining the state which opens the opening lid | cover of the top | upper surface part of the cover lid of the composite container which concerns on this invention, and provides a spout. It is a top view which shows one Example of the brush accommodated in the brush storage space part of the cover top | upper surface part which comprises the composite container which concerns on this invention. It is side sectional drawing which shows the state which fitted the inner container and cover lid which comprise the composite container which concerns on this invention, and was inner-sealed. It is a sectional side view which shows the locked state of the inner container and square tube-shaped sleeve which comprise the composite container which concerns on this invention.

Explanation of symbols

A ... Inner container B ... Cover lid C ... Square tube sleeve D ... Composite container 1 ... Rib for sleeve lock 2 ... Rib for fitting 3 ... Handle 4 ... Band Fixing part 5 ... Top surface part 6 ... Rib for stacking 7 ... Opening lid 7a ... Spout 8 ... Pick part 9 ... Pick holding part 10 ... Brush 10a ... Grasp Hand part 10b ... Brush part 11 ... Brush storage space part 11a ... Grip hand storage part 11b ... Brush storage part 12 ... Band 13 ... Flange part 14 ... Corrugated cardboard side wall part 15 ... Undercut part 20 ... Side part 21 ... Glue part e ... Horizontal ruled line f ... Vertical perforation g ... Fold crease h ... Half cut part i ... Hinge part

Claims (12)

  A composite container comprising a plastic quadrangular pyramid-shaped inner container, a covering lid, and a square sleeve that can be loaded with the inner container, wherein the inner container and the square cylinder are disposed on the outer surface of the inner container. A composite container provided with a rib for sleeve locking for fixing the cylindrical sleeve.   The composite container according to claim 1, wherein the inner container is formed by an injection molding method.   The composite container according to claim 1, wherein the inner container is made of a synthetic resin or a biodegradable synthetic resin.   The composite container according to claim 1, wherein the covering lid is provided with stacking ribs at four corners of the top surface portion.   5. The composite container according to claim 1, wherein the cover lid is provided with a triangular opening lid formed of a half cut portion and a hinge portion on the top surface portion.   The composite container according to claim 1, wherein the covering lid is provided with a brush storage space portion on the top surface portion.   The composite container according to claim 1, 4, 5, or 6, wherein the covering lid is formed by an injection molding method.   The composite container according to claim 1, 4, 5, 6, or 7, wherein the covering lid is made of a synthetic resin or a biodegradable synthetic resin.   The inner container is provided with protrusion-like fitting ribs for fitting with recesses inside the stacking rib of the cover lid at four corners of the opening tip. The composite container of any one of Claims.   The rectangular tube-shaped sleeve is formed in a rectangular shape with a lateral ruled line used for packing at the bottom center side end of a rectangular side part and a vertical perforation formed below both side end parts of the ruled line. The composite container according to claim 1, further comprising a band fixing portion.   The composite container according to claim 1, wherein the square cylindrical sleeve is made of cardboard.   The composite container according to any one of claims 1 to 11, wherein the composite container is stacked by fitting an inner surface of a lower end of the rectangular tube-shaped sleeve and an outer surface of a stacking rib of the cover lid. .