NZ622498B2 - Funnel component and packaging container using funnel component - Google Patents
Funnel component and packaging container using funnel component Download PDFInfo
- Publication number
- NZ622498B2 NZ622498B2 NZ622498A NZ62249812A NZ622498B2 NZ 622498 B2 NZ622498 B2 NZ 622498B2 NZ 622498 A NZ622498 A NZ 622498A NZ 62249812 A NZ62249812 A NZ 62249812A NZ 622498 B2 NZ622498 B2 NZ 622498B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- sealing lid
- funnel
- packaging container
- region
- packaging
- Prior art date
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 197
- 239000000565 sealant Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 259
- -1 polyethylene Polymers 0.000 claims description 26
- 239000004698 Polyethylene (PE) Substances 0.000 claims description 24
- 229920000573 polyethylene Polymers 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 abstract description 24
- 238000000034 method Methods 0.000 description 25
- 238000000926 separation method Methods 0.000 description 18
- 229920005989 resin Polymers 0.000 description 16
- 239000011347 resin Substances 0.000 description 16
- 238000003860 storage Methods 0.000 description 15
- 230000004048 modification Effects 0.000 description 12
- 238000006011 modification reaction Methods 0.000 description 12
- 229920000139 polyethylene terephthalate Polymers 0.000 description 11
- 239000005020 polyethylene terephthalate Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000007639 printing Methods 0.000 description 10
- 150000002500 ions Chemical class 0.000 description 9
- 241000196435 Prunus domestica subsp. insititia Species 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 235000013305 food Nutrition 0.000 description 6
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive Effects 0.000 description 5
- 238000004049 embossing Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 230000004059 degradation Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000001846 repelling Effects 0.000 description 4
- 239000002966 varnish Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002708 enhancing Effects 0.000 description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229920002456 HOTAIR Polymers 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 230000002633 protecting Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004642 transportation engineering Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 101710025995 CLINT1 Proteins 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 101700015817 LAT2 Proteins 0.000 description 1
- 229920001225 Polyester resin Polymers 0.000 description 1
- 229940035295 Ting Drugs 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001154 acute Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 101700010476 lid-1 Proteins 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2203/00—Decoration means, markings, information elements, contents indicators
- B65D2203/02—Labels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0006—Upper closure
- B65D2251/0031—Membrane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0068—Lower closure
- B65D2251/0093—Membrane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/10—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by form of integral or permanently secured end closure
- B65D3/12—Flanged discs permanently secured, e.g. by adhesives or by heat-sealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/10—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by form of integral or permanently secured end closure
- B65D3/12—Flanged discs permanently secured, e.g. by adhesives or by heat-sealing
- B65D3/14—Discs fitting within container end and secured by bending, rolling, or folding operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
- B65D51/185—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures the outer closure being a foil membrane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/10—Container closures formed after filling
- B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
- B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/06—Containers or packages with special means for dispensing contents for dispensing powdered or granular material
Abstract
Disclosed is a bottle or packaging container with an integral internal funnel for pouring the container's contents. The funnel part is provided with a funnel section in which the diameter increases from a narrow opening side towards a wide opening side, a cylindrical discharge section connecting to the narrow opening side edge, and a cylindrically shaped side wall section surrounding the opening section of the wide opening side of the funnel section and connecting to the funnel section to fit to a container main body; the funnel part is integrally formed using sheet material comprising paper and a sealant layer, and a cuff section in which the sheet material is folded back and welded over the entire circumference is provided in the opening section of the discharge section. The packaging container is configured fitting the funnel part to the cylindrically shaped container main body having an open end, a bottom section, and a side wall. the narrow opening side edge, and a cylindrically shaped side wall section surrounding the opening section of the wide opening side of the funnel section and connecting to the funnel section to fit to a container main body; the funnel part is integrally formed using sheet material comprising paper and a sealant layer, and a cuff section in which the sheet material is folded back and welded over the entire circumference is provided in the opening section of the discharge section. The packaging container is configured fitting the funnel part to the cylindrically shaped container main body having an open end, a bottom section, and a side wall.
Description
DESCRIPTION
TITLE OF THE INVENTION: FUNNEL COMPONENTAND PACKAGING CONTAINER
USING FUNNEL COMPONENT
CAL FIELD
The present invention relates to funnel components for use in packaging
containers in which fluid substances such as powdery, granular, and liquid substances are
packaged and by which the contents are transferred from one case to another case or the like, and
packaging ners in which the fiinnel components are used.
BACKGROUND ART
In general, powdery or granular food such as instant coffee is sold in a state where
the food is packaged in a high—hermetically sealed packaging container such as a capped bottle
so as to maintain a sealed state during storage or the like. As such a packaging container, a
packaging container, for refilling, which can facilitate transfer of ts is suggested in Patent
Literature 1. When the contents are transferred from the packaging container to a storage
container or the like, the packaging container is opened and put in an opening portion of the
e container, to gradually transfer the contents.
The packaging container sed in Patent Literature 1 includes a cylindrical
container body, a flannel component, a sealing lid, and a covering cap. The funnel component
includes a funnel portion, and a side wall portion connected with an end portion, on a wide
opening side, of the funnel portion. The side wall portion is fitted into the container body, and
joined to an inner surface of the container body. The funnel portion has such a shape as to
reduce its diameter toward an outer side of an opening portion of the container body. Further,
an edge, on a narrow opening side, of the funnel portion and an edge of an open end of the
container body are coplanar with each other. The container body is filled with contents, and the
edge of the open end of the container body is sealed with the sealing lid. In the sealing lid, a
plurality of perforation lines are formed so as to extend radially from the center of the sealing lid.
Further, the ng cap for covering the top of the sealing lid during storage, circulation, or the
like is mounted to prevent the g lid from being cut.
When contents in the packaging container are transferred for refilling, the
covering cap is removed from the packaging container, and the sealing lid is put and d into
an opening of a case to be refilled with the contents. Thus, the g lid is cut along the
perforation lines, whereby the contents can be easily transferred through the funnel component.
In the packaging ner, since sealing between the funnel component and a
membrane is not performed, a problem arises that the contents are moved onto the outer side of
the funnel component through a gap between the funnel component and the membrane during
transportation or the like. In a case where the ts are transferred from a package for
refilling to a storage container or the like in a state where the contents have been moved onto the
outer side of the funnel component, the contents having been moved onto the outer side of the
funnel component are not transferred to a case, such as the storage ner, to be refilled, and
may scatter (externally) on the outside of the case to be refilled. Therefore, the contents are
spilled on/around a refilling work space such as a table, and clearing such as cleaning is
necessary. Therefore, in Patent Literature 3, it is suggested that an end portion, on a narrow
opening side, of the funnel component projects outward of an open end of the container body
such that the membrane and the end portion, on the narrow opening side, of the funnel
component are maintained so as to be in close contact with each other, thereby preventing the
movement of the contents (see, for example, of Patent Literature 3).
Such a packaging container may be subjected to an nment where air
pressure inside the packaging container s different from air pressure outside the
packaging container during circulation. In a case where, for example, packaging containers that
are filled with contents in summer in which the temperature is high are in shops in Winder in
which the temperature is low, air re inside the packaging containers is reduced relative to
air pressure outside the ing containers, and the side surface portions of the packaging
containers are recessed toward the inside of the packaging containers. Therefore, a problem
may arise that the design of the ing containers is degraded. On the other hand, in a case
where, for example, packaging containers that are filled with contents in a place such as a flat
land in which the de is relatively low, are circulated and placed in a place in which the
de is high, air pressure inside the packaging containers is increased ve to air pressure
outside the packaging ners, and the side surface portions of the packaging containers
expand d of the packaging containers. Therefore, problems may arise that the design of
the packaging containers is degraded and contents are ejected due to, for example, breakage
caused by a small impact. In order to solve the ms, a container is suggested in which a
laminated member of the side surface portion of the container is formed so as to be partially
separable, and, ularly when an internal pressure is reduced, an inner layer of the laminated
member is separated and expanded toward the inside of the container, to alleviate reduction of
re in the container, thereby preventing the side e portion of the container from being
recessed (see, for example, Patent Literature 4).
CITATION LIST
PATENT LITERATURE
Patent Literature 1: Japanese Laid-Open Patent Publication No. 2009-262956
Patent Literature 2: Japanese Laid-Open Patent Publication No. 2009-262955
Patent Literature 3: Japanese Laid-Open Patent Publication No. 2009-280286
Patent Literature 4: Japanese Laid-Open Patent Publication No. 2011-93614
Patent ture 5: Japanese Laid-Open Patent ation No. 2011-230787
SUMMARY OF THE INVENTION
PROBLEMS TO BE SOLVED BY THE INVENTION
To date, fiinnel components have been formed by using resin. However, from
the viewpoint of environmental issues, usage of plastics, aluminium foils, and the like is
preferably to be reduced for resource saving, and paper, instead of aluminium, needs to be used
as main materials of the container bodies, the sealing lids, the funnel components, and the like.
However, when the funnel component is formed by a sheet member containing
paper being subjected to pressing s, a problem arises that a strength becomes insufficient.
It is effective that the end portion, on the narrow opening side, of the filnnel component projects
as described above in order to prevent contents from moving onto the outer side of the funnel
component. ore, it is considered that, also when the funnel component made of paper is
used, the end portion on the narrow opening side is formed so as to project from the container
body. However, before contents are packaged, a plurality of packaging containers in which the
funnel components are mounted to the container bodies are stacked so as to sandwich plate
members, and stored. Therefore, when the paper funnel components project from the container
bodies, the funnel components are likely to be buckled due to load applied through the plate
members. r, shapes formed by press work are limited, and shaping of the funnel
components is difficult. On the other hand, when the funnel components are formed by a pulp
molding method, although a strength is obtained, problems arise that cost for introducing
facilities is high, and mass productivity is disadvantageous. Further, an optimal projection for
paper funnel components is not y known.
Further, to the packaging containers, sticker labels, for ting ation or
representing design, on which, for example, a trade name, an opening method, ation of
usage of contents and the like, and isement for sales promotion are indicated, are often
In the packaging container disclosed in Patent ture 5, the g lid is
pressed and ed outward of the packaging container by an end portion of the funnel
component. is a perspective View of a packaging ner 910 to which a circular
sticker label 901 is d.
When the sticker label 901 is adhered along a shape of a surface of the sealing lid
1960 that is expanded, the circumferential edge portion of the sticker label 901 is folded and
gathered, to be crinkled, whereby appearance is spoiled. A n of the circumferential edge
portion of the sticker label 901 is lifted from the sealing lid 1960, and a gap, called lifting, may
be generated between the sticker label 901 and the sealing lid 1960, whereby on may
become insufficient. As described above, when a sticker label is adhered to a non—flat surface,
in particular, when a circular sticker label is adhered to a concentrically expanded or recessed
surface, crinkling or insufficient adhesion may occur. Therefore, it is difficult to adhere a
sticker label to such a e to indicate information and represent design thereon.
In a case where, for e, a circular expansion having a height that is greater
than or equal to 1 mm is included in the sealing lid 1960 having a diameter that is r than or
equal to 50 mm, and is not greater than 100 mm, when a sticker label that is formed by using
tic paper as a main component and has a thickness that is greater than or equal to 50 um
and not greater than 100 um, is adhered, crinkles are likely to occur. When a sticker label
having a thickness greater than 100 mm is adhered, lifting is likely to occur. In a case where a
sticker label is formed by using a stretchable material, when the sticker label is adhered with an
adhesion surface being flat, crinkles or lifting can be reduced. However, when it is difficult to
obtain a flat state as in the sealing lid 1960, reduction in e and lifting is difficult.
An object of the t invention is to provide, at low cost, a funnel component
that is formed by using paper as a main material, that ins a strength sufficient for reducing
deformation such as buckled state caused by, for e, load applied during storage,
circulation, refilling, and the like, and that ses environmental issues by, for example,
reducing usage of ium foils.
Another object of the present invention is to provide a packaging container in
which a funnel component formed by using paper as a main material is fitted into a container
body, in which contents can be ively prevented from moving onto an outer surface side of
the funnel component, and in which resistance to buckling is also exhibited during storage.
Still another object of the present invention is to provide, at low cost, a sealing lid,
for use in the packaging container, which is less likely to be cut during storage, circulation, or the
like, and which addresses environmental .
Still another object of the present invention is to allow the g lid to prevent
contents from spilling through perforation lines, and prevent excessive enhancement of cutting
strength with which the sealing lid is out along the perforation lines.
Still another object of the present invention is to provide such a packaging
container that does not degrade design such as an outer appearance even when internal pressure
is d relative to external pressure.
Still another object of the present ion is to provide a sticker label that is less
likely to generate crinkles or lifting even when such a packing ner includes a non-flat
surface and the sticker label is adhered to the non—flat surface.
SOLUTION TO THE PROBLEMS
The present invention is directed to a packaging container, comprising: a
cylindrical container body having an open end, a bottom portion and a side wall; a funnel
component; and a sealing lid, that seals the open end of the ner body, and is cut by an
external pressing force, wherein the funnel component is fitted into the cylindrical container
body such that a narrow opening side portion is directed towards an open end side of the
container body, the funnel component comprising: a fill’ll’l6l portion having a diameter that is
increased from the narrow opening side toward a wide opening side; a tubular discharge portion
that connects with an end portion on the narrow opening side; and a cylindrical side wall portion
that surrounds an opening portion, on the wide opening side, of the funnel portion, connects
with the funnel portion, and is fitted into the container body, wherein the funnel portion, the
rge portion, and the side wall portion are integrally formed by using a sheet member
including paper and a sealant layer, and a folded portion formed by the sheet member being
folded back and welded over an entire circumference is provided at an opening portion of the
discharge n.
(Paragraph [0021] deleted.)
An g portion, on the narrow opening side, of the funnel component
preferably projects from a plane of the container body including the open end of the container
body, and a projecting ce is preferably greater than 0 mm and less than or equal to 2 mm.
Further, the sealing lid ably es: a lower film that has a ferential
edge portion which is sealed to an opening portion of the container body to seal the container
body, that has the perforation lines that are provided in a center portion other than the
circumferential edge portion so as to radially extend, and that is to be cut by being externally
pressed; and an upper film that is adhered to the lower film over the entire circumference of the
circumferential edge portion of the lower film and in at least one adhesion region that is lly
formed in a region which does not include the perforation lines of the center portion, such that
the upper film is separable from the lower film.
An upper film may be adhered to the lower film over the entire circumference of
the circumferential edge portion of the lower film and in at least one adhesion region that is
lly formed in a region which includes the perforation lines of the center portion, such that
the upper film is separable from the lower film.
Further, in the container body, a ty of the side wall is preferably higher than
a rigidity of the bottom portion, and a plurality of ruled lines are preferably provided on an outer
surface portion of the bottom portion so as to radially extend as viewed from a center portion of
the bottom n.
Further, the packaging container may fiirther include a sticker label having, in a
part of a circumferential edge portion, a plurality of recesses each formed in a curved line in a
planer shape, and the sticker label may be adhered to a surface of the sealing lid, which forms an
outer side of the packaging container.
ADVANTAGEOUS EFFECTS OF THE INVENTION
According to the present invention, a funnel component that is formed by using
paper as a main material and has strength can be provided at low cost.
Further, according to the present invention, an opening portion, on a narrow
g side, of a funnel portion projects from an open end of a container body, whereby
contents can be prevented from moving onto an outer side of the funnel ent in a state
where the contents are packaged and the container body is sealed with a sealing lid. Further,
projection of the funnel n is optimized for paper funnel components, whereby the funnel
components can be prevented from being irreversibly deformed when packaging containers are
stacked and stored, for e, before contents are packaged.
Furthermore, according to the present invention, a sealing lid, of a packaging
container, which is less likely to be cut during e, circulation, or the like, can be provided.
r, such a sealing lid can t contents from ng through perforation lines, and
prevent excessive enhancement of cutting strength with which the sealing lid is out along the
perforation lines.
Moreover, according to the present invention, a packaging container that does not
degrade design even when internal re is changed relative to external pressure, can be
provided. Namely, rigidity of a bottom portion of the packaging container is set so as to be
lower than rigidity of a side surface portion, and a ity of ruled lines that radially extend as
viewed from the center portion of the bottom portion are provided, whereby the rigidity of the
bottom portion is further d. Therefore, even when pressure inside the packaging
container is changed relative to .external pressure, the bottom portion projects or is recessed to
reduce change in pressure, and design such as an outer ance of the packaging container
may not be degraded. In particular, the center portion of the bottom portion is caused to project
outward of the packaging container in advance. Therefore, even when pressure inside the
packaging container in which contents are ed is reduced relative to external pressure, the
bottom n having a relatively low rigidity is recessed inward of the packaging ner to
alleviate reduction in pressure in the container, whereby the side surface portion of the ing
container or the like is not recessed, and design such as an outer appearance of the side surface
portion is not degraded. Further, a non-sealed portion is provided at an upper end of a fixing
portion which is an outer edge portion of a bottom member forming the bottom portion, whereby
stress is prevented from being concentrated on a portion near the outer edge of the bottom
portion when the bottom portion is ed inward, and no crinkles are ted near the outer
edge and design of the bottom portion may not be degraded.
Further, according to the present invention, when a sticker label is adhered to the
sealing lid, the width of the recesses at a circumferential edge portion of the sticker label is
reduced, whereby generation of crinkles or g can be reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
[FIG 1] is a front view and a al cross-sectional view of a funnel
component according to a first embodiment of the present invention.
[FIG 2] FIG 2 is a cross-sectional View of a blank material and the funnel component
according to the first embodiment of the present invention.
[FIG 3] is a vertical cross-sectional view of a packaging container ing to the
first embodiment of the present invention.
[FIG 4] is a cross-sectional View illustrating a state where the packaging container
shown in is used.
[FIG 5] FIG 5 is a al cross-sectional view of a funnel component according to a
second embodiment of the present invention.
[FIG 6] FIG 6 illustrates a problem to be solved by the present invention.
[FIG 7] is a top View and a front View of a funnel component according to a third
embodiment of the present ion.
[FIG 8] FIG 8 is a vertical cross-sectional view of the funnel component ing to the
third embodiment of the present invention.
[FIG 9] FIG 9 is a cross-sectional View illustrating warping of a side wall portion of the
funnel component.
[FIG 10] FIG 10 illustrates a vertical cross-section of a container body to which the filnnel
ent is joined.
[FIG 11] FIG 11 is a perspective view of a funnel component according to a fourth
embodiment.
[FIG 12] is a cross-sectional view illustrating a state where an open end of a
packaging container shown in is sealed.
[FIG 13] is a top view of a sealing lid according to an e of the fourth
ment and a fifth embodiment of the t invention.
[FIG 14] is a cross-sectional view illustrating a method by which packaging
ners according to the example of the fourth embodiment of the present ion are
stacked.
[FIG 15] shows a graph representing a onship between load applied to the
funnel component and displacement thereof.
[FIG 16] is a perspective View of a packaging ner according to a sixth
embodiment of the present invention.
[FIG 17] FIG 17 is a vertical cross-sectional View of the packaging container according to
the sixth embodiment of the present invention.
[FIG 18] is a plan view and a cross—sectional view of a g lid according to the
sixth embodiment of the present invention.
[FIG 19] is an enlarged cross-sectional View of the packaging container according
to the sixth embodiment of the present invention.
[FIG 20] illustrates a method for manufacturing the packaging container according
to the sixth embodiment of the present invention.
[FIG 21] FIG 21 is a perspective view and a vertical cross—sectional view of the packaging
ner according to the sixth embodiment of the present invention.
[FIG 22] FIG 22 illustrates a problem to be solved by the present invention.
[FIG 23] is an enlarged view of a tab portion of the sealing lid according to the
sixth embodiment of the present invention.
[FIG 24] is a plan View and a cross—sectional view of a g lid according to a
seventh ment of the present invention.
[FIG 25] is a plan view of the sealing lid according to the seventh embodiment of
the present invention.
[FIG 26] is a plan View of a sealing lid according to a modification of the seventh
embodiment of the present invention.
[FIG 27] is a perspective view of a packaging container and a plan view of the
sealing lid according to the seventh embodiment of the present invention.
[FIG 28] is a plan View of a sealing lid according to an eighth embodiment of the
t invention.
[FIG 29] is a plan view of a sealing lid according to a ninth embodiment of the
present invention.
[FIG 30] is a plan View of a sealing lid according to a tenth embodiment of the
present invention.
[FIG 31] is a plan view of a sealing lid according to an eleventh embodiment of the
present invention.
[FIG 32] is a plan View of a sealing lid according to a twelfth embodiment of the
present ion.
[FIG 33] is a plan View and a cross-sectional View of a sealing lid according to a
thirteenth embodiment of the present invention.
[FIG 34] is a plan view and a cross-sectional View of a sealing lid ing to a
fourteenth embodiment of the present invention.
[FIG 35] FIG 35 is a schematic cross-sectional view of a packaging container ing to
a fifteenth embodiment of the present invention.
[FIG 36] FIG 36 is an al View of a bottom portion of the packaging container
according to the fifteenth embodiment of the present ion, as Viewed from the outside of the
packaging container.
[FIG 37] FIG 37 is an al View of bottom portions of packaging ners according
to a first modification and a second modification of the fifteenth embodiment of the t
invention, as viewed from the outside of the packaging containers.
[FIG 38] is an external View of a bottom portion of a ing container
according to a third modification of the fifteenth embodiment of the present invention, as viewed
from the outside of the packaging container.
[FIG 39] FIG 39 is an external View of a bottom n of a packaging container
according to a fourth modification of the fifteenth embodiment of the present invention, as
viewed from the outside of the packaging container.
[FIG 40] is a schematic cross-sectional view of a portion near the bottom portion of
the packaging container ing to the fifteenth embodiment of the present invention.
[FIG 41] illustrates a laminated structure of a side e portion of the packaging
container according to the fifteenth embodiment of the present invention.
[FIG 42] illustrates a laminated structure of the bottom portion of the packaging
container according to the fifteenth embodiment of the present invention.
[FIG 43] illustrates a problem to be solved by the present invention.
[FIG 44] FIG 44 is a plan View and a schematic cross-sectional View of a sticker label
according to a nth embodiment of the present invention.
[FIG 45] is a perspective view of a packaging container according to the sixteenth
embodiment of the present invention.
[FIG 46] is a vertical cross-sectional view of the packaging container according to
the sixteenth ment of the present invention.
[FIG 47] is a ctive view of a packaging container to which a conventional
sticker label is adhered.
DESCRIPTION OF EMBODIMENTS
(First embodiment)
A first embodiment of the present invention will be described below. is a
front view (a) and a al cross-sectional view (b) of a funnel component 101 according to the
present embodiment.
The funnel component 101 is integrally formed by using a sheet member
including paper and a sealant layer, and includes a funnel portion 102, a discharge portion 103,
and a side wall portion 104. A material of the sheet member is, for example, PE (polyethylene),
paper, and PE which form a laminated structure. The funnel portion 102 has a circular
truncated cone shape in which the er is reduced from a wide opening side toward a narrow
opening side. An opening 105, that is, one of openings of the funnel component 101 is formed
on the wide g side. The discharge portion 103 is connected on the narrow opening side.
The discharge portion 103 has a cylindrical shape, and has an opening n 106, that is, the
other of the openings of the funnel component 101. The side wall portion 104 has a cylindrical
shape in which the diameter is almost uniform, surrounds the outer surface of the funnel portion
102, and is connected with the circumferential edge around the opening 105.
In the discharge portion 103, a folded portion 206 is formed by a n of the
sheet member being folded back inward. The folded portion 206 is welded to another n
of the sheet member of the discharge portion 103. The folded portion 206 allows ement
of a strength at the opening portion 106. Further, a plurality of ruled lines 107 are provided on
the funnel portion 102 and the discharge portion 103. The ruled lines 107 extend radially along
lines of intersections between the funnel component 101 and planes including the central axis of
the funnel component 101. Each of the ruled lines 107 is welded in a state where the ruled lines
are squeezed to have recesses buried as bed below. Thus, th is enhanced in the
ty of the funnel component 101.
As shown in a partially enlarged portion in (b) of the discharge portion
103 may be tapered so as to have a rotationally symmetrical shape with t to the central axis
of the funnel component 101. A taper angle (0 in (b) of FIG 1) of the discharge portion 103 is
preferably set so as to range from 0° to 15°. Among the range, the taper angle is more
ably set so as to range from 5° to 10°. The greater the taper angle is, the more easily the
funnel component can be d from a die when the funnel component is manufactured as
described below. r, when the taper angle is greater than 15°, strength of the discharge
portion is reduced. When the taper angle is 0°, gh strength, against buckling, of the
funnel component 101 is maximum, efficiency for removing the funnel component from a die is
reduced as described above. Further, a dimension, along the central axis direction of the funnel
component, of the discharge portion 103 is preferably set so as to range from 7 mm to 15 mm.
When the height of the discharge portion 103 is less than 7 mm, insertion into a tank of a coffee
machine as described below cannot be performed. On the other hand, when the height of the
discharge portion 103 is greater than 15 mm, the discharge portion hits against a component of
the tank.
A sector-shaped blank material by which the funnel component 101 is formed is
formed by a sheet member in which paper and resins are layered being punched by using a die.
The blank material is rolled to overlay and seal linear side edge portions onto each other, thereby
temporarily forming a circular-truncated-cone-shaped intermediate product. Thereafter, the
intermediate product is subjected to drawing process to form each part of the funnel ent
101. The blank material has the plurality of ruled lines 107 as shown in (a) of When
the intermediate product is heated during the drawing process, a t layer is welded in a state
where recesses and projections of the ruled line 107 portions are squeezed as shown in (b) of
By the recesses and projections of the ruled line 107 ns being thus squeezed,
rigidity of the funnel n 102 is enhanced. r, this maintains the horizontal cross
section so as to be circular. Therefore, d of conventional funnel components made of
resin, this funnel component can be used.
is a vertical cross-sectional View of a ing container 100 that includes
the funnel component 101 described above. The packaging container 100 includes a cylindrical
container body 120, the funnel component 101, and a g lid 160. The side wall portion
104 of the funnel component 101 is fitted into the container body 120 and is joined to the inner
surface of the container body 120. Further, an edge of the g portion 106 of the discharge
portion 103 and an edge of an open end of the container body 120 are coplanar with each other.
The edge of the opening portion 106 may be formed so as to slightly project from the container
body 120 outward of a plane including the edge of the open end of the container body 120.
Contents 150 are packaged in the container body 120, and the open end of the container body
120 is sealed with the sealing lid 160. When the contents 150 are packaged therein, a nozzle of
a filling machine is inserted into the discharge n 103. When the contents 150 are
powdery, a gap n the nozzle and the opening portion 106 is covered with a lid member of
the nozzle, and the entirety of the edge of the discharge portion 103 is slightly pressed by the lid
member, in order to t the contents from scattering. In the present embodiment, the taper
angle of the discharge portion 103 is less than or equal to 15°, and therefore strength of the
discharge portion 103 against the pressing is assuredly obtained. Thus, even when the pressing
by the lid member is performed, deformation of the funnel component 101 is prevented.
The enhancement of the strength as described above prevents deformation of the
funnel component 101 when the funnel component 101 is d to the container body 120, or
during storage and usage (when the contents are transferred to a storage ner) after the
contents 150 are packaged. For example, during e, a state Where a position of the edge of
the opening portion 106 of the discharge portion 103 is lowered to generate a gap at a contact
portion with the sealing lid 160, and the contents 150 are moved h the gap onto the outer
side of the funnel component 101, can be prevented. Further, by the ruled lines 107 being
squeezed, when the contents 150 are transferred to a storage container, the contents 150 are
prevented from being caught and left in the ruled lines 107. As a material of the sheet member,
a sealant layer in which a thermoplastic resin or a hot-melt adhesive is used for one of or both of
an ost layer and an innermost layer, may be used. Further, the sheet member may not
include paper.
is a cross-sectional view illustrating a state where the packaging container
shown in is used. A tank 710 shown in is an exemplary ner to be refilled
with the contents 150. In portions other than a filling opening of the tank 710 are not
shown.
As shown in (a) of FIG 4, during transfer and refilling operation, the packaging
container 100 is pressed into the tank 710 in a state Where the sealing lid 160 opposes an opening
711 ofthe tank 710.
When the sealing lid 160 is cut by an opening member 713 of the tank 710, the
center portion of a rubber member 712 that covers the tank 710 is pressed and widened by the
discharge portion 103 of the packaging container 100 as shown in (b) of and the
discharge n 103 is inserted through the opening 711 into the tank 710. In this state, the
contents 150 enter the tank 710 along the inner surface of the funnel component 101.
However, when the packaging ner 100 is d and inserted in the state
shown in (a) of FIG 4, the packaging ner 100 may not be always pressed and ed
vertically downward, and may be pressed and inserted diagonally downward. In a case where
the packaging container 100 is pressed and inserted diagonally rd, when the discharge
portion 103 contacts with the rubber member 712, pressing force in a diagonal direction (for
example, directions indicated by arrows in (a) of is applied to the discharge portion 103.
In the present embodiment, the entirety of the funnel component 101 is not deformed and only
the discharge portion 103 is ed from a boundary A, due to the pressing force applied to
the funnel component 101. ore, deformation of the funnel portion 102 is effectively
reduced.
(Second embodiment)
A second embodiment of the present ion will be described below.
is a vertical cross-sectional view of a funnel component 301 ing to the present
embodiment. The funnel component 301 is different from the funnel component 101 of the
first embodiment in that the funnel component 301 includes a folded portion 406 having a
corrugated edge. The other portions are the same between the funnel components 301 and 101,
and are denoted by the same reference numerals. The shapes of the folded portions are
different due to a shape of a blank al used for manufacturing the funnel component 301
and the shape of the blank material used for manufacturing the funnel component 101 being
ent from each other.
In the forming process for the funnel component 301, when a narrow opening side
portion of a circular-truncated-cone-shaped intermediate t is folded back such that the
taper angle is greater than or equal to about 10°, a difference between a circumferential length of
a folding line portion and a circumferential length of a portion near the edge of the sheet member
is increased, and this difference cannot be absorbed by elongation of the sheet member.
Therefore, when folding-back is performed, the edge of the folded portion may be cut due to a
high e force being applied along the circumferential direction.
is a top View (a) and a front view (b) of an intermediate t 203 in the
case of cut being generated due to the folding-back. As shown in when the folded
portion 206 is cut, the opening portion 106 is not ar, but has a polygonal shape in which
tips of cut portions are its vertexes, and stress is concentrated on the vertexes, whereby cutting is
likely to occur. Further, the heights at the vertexes are not uniform and the top surface of the
opening portion 106 is not flat. Therefore, an influence may be d when the edge of the
lid 160, whereby a quality may be
open end of the container body 120 is sealed with the sealing
degraded. Further, when slits are previously formed in the folded portion 206, although cut can
be prevented from occurring anew during the folding-back, the slits themselves may cause
similar degradation in quality.
On the other hand, in the folded portion 406 of the present embodiment, high
tensile force is not d to peak portions (portions that are far from a g position that is
the edge of the opening portion 106) of the corrugated line during folding—back. Further, in
valley portions of the corrugated line, stress is likely to be dispersed as ed to a case where
slits that are cut portions having acute angles are ed. Therefore, cut is less likely to be
generated, whereby degradation in quality as described above can be prevented. Therefore, in
the present embodiment, folding-back and welding processes for the folded n 406 can be
performed prior to processes of forming the discharge portion 103 and removing the taper.
Further, high resisting force is not applied to an inward curling die used for
g the folded portion 406, from the edge of the folded portion 406, whereby the folding-
back process can be performed by low pressing pressure. Therefore, manufacturing failure
where portions other than the folding lines are bent to buckle the funnel ent 301 can be
reduced even when little fluid paraffin is applied for improving slidability of the die and the
sheet member,
(Third embodiment)
is a top View and a front View of a flannel component according to a third
embodiment of the present invention. is a cross-sectional View taken along a line A-A’ in
(a) of
A funnel component 501 of the third embodiment is different from the funnel
components of the first and second embodiments in shapes of the funnel n and the side
wall portion. In the below description, the same components as described for the first or the
second embodiment are not described.
A funnel portion 502 is tapered so as to have a rotationally symmetrical shape
with respect to the central axis, and includes a first tapered portion 512 on the wide opening side,
and a second tapered portion 522 that is closer to the narrow opening than the first tapered
portion 512 is. A taper angle 02 of the second d portion 522 is greater than a taper angle
01 of the first tapered portion 512. Further, a rge n 503 is tapered so as to have a
rotationally symmetrical shape with t to the l axis, and has a taper angle represented
as 03. As in the first embodiment, 03 is preferably set so as to range from 0° to 15°. Further,
as shown in a folded portion 606 of the discharge portion 503 has a corrugated edge.
Further, in an outer surface of the funnel component 501 over the first tapered portion 512 to the
discharge portion 503, grooves 508 are formed by embossing process. The grooves 508 extend
radially along lines of ections between the funnel component 501 and planes ing the
central axis of the funnel component 501. Further, a side wall portion 504 is formed so as to be
corrugated such that distances from the central axis of the funnel portion 502 are increased or
reduced on a horizontal cross-section orthogonal to the central axis of the funnel component 501,
as shown in (a) of The side wall portion 504 may be corrugated such that at least a
portion, of the side wall portion 504 including the upper edge thereof is corrugated.
The funnel component 501 formed as described above is mounted in the ner
body 120 as shown in . The filnnel component 501 is d such that the side wall
portion 504 is heated by hot air to melt a sealant, the fiinnel component 501 is thereafter inserted
into the container body 120, and the side wall portion 504 of the funnel component 501 is
pressed and widened, to press—bond the funnel component 501 to the inner surface of the
container body 120.
In a process of forming the funnel component 501, in a case where the edge
portion, on the wide opening side, of a circular-truncated-cone-shaped intermediate product is
simply folded back to form the side wall portion, g occurs at the top end of the side wall
portion due to difference in circumferential length between a folding portion (namely, a
connection portion between the side wall n and the funnel n) and the top end of the
side wall portion, as shown in Due to the warping, when the filnnel component having
been heated by hot air is inserted into the container body, friction may generated between the
outer surface of the side wall portion and an open end or an inner surface of the container body,
to te resin dusts, or a th for on between the side wall portion and the container
body may be reduced.
On the other hand, in the funnel component 501 of the third embodiment, the side
wall portion 504 has a corrugated horizontal cross-sectional shape, and thus a difference of the
circumferential length of the side wall portion 504 as described above can be absorbed, and
warping of the top end of the side wall portion 504 can be reduced. Further, since the side wall
portion 504 having the corrugated shape is hable, the outer diameter of the side wall portion
504 is designed so as to be slightly less than the inner diameter of the ner body 120, and
the side wall portion 504 is pressed and widened when joined, thereby enabling prevention of
friction occurring when the funnel component 501 is inserted into the container body 120.
As shown in , the funnel component 501 of the present embodiment
includes the first tapered portion 512 and the second tapered portion 522 that have different taper
angles, respectively. In this ure, at a boundary A between the discharge portion 503 and
the second tapered portion 522 and a boundary B between the second tapered portion 522 and
the first tapered portion 512, deformation of the funnel component 501 is likely to occur, and this
deformation enables pressing force applied to the discharge portion 503 to be absorbed. For
example, the container bodies shown in are stacked vertically one on top of another, and
ed or stored. Further, the discharge portion 503 may be d by a g lid of a
filling nozzle when contents are packaged. In these cases, pressing force applied to the
discharge portion 503 is absorbed by the funnel component 501 being deformed, thereby
effectively reducing buckling of the funnel component 501. In the third embodiment,
cushioning property exhibited by the funnel component 501 can prevent buckling even when a
higher external force is applied.
An exemplary case is assumed where the funnel component 501 that was 45 mm
high, and had an outer diameter of 94 mm on the wide opening side and an outer diameter of 64
mm on the narrow opening side, was formed by using a sheet in which polyethylene layers
having a thickness of 30 um were layered on both sides of a sheet of paper having a basis weight
of 300 g/m2 ness was 350 pm). In this case, even when the funnel component 501 was
deformed so as to change the height by 3 mm (a load of 120 N was applied to the end of the
discharge portion of the funnel component), no buckling occurred.
The fiinnel component 501 is joined to the inner portion of the container body 120
such that the open end of the discharge portion 503 slightly projects from the container body 120
outward of the plane ing the edge of the open end of the container body 120, as shown in
. Thus, after an opening portion 506 is sealed with a sealing lid (not shown), the sealing
lid is constantly pressed by the edge of the discharge n 503, and therefore the contents (not
shown) are less likely to move onto the outer side of the funnel component 501.
(Modification of third embodiment)
The funnel component of the third embodiment may include a side wall portion
having a ated horizontal cross—section that is formed by embossing process.
(Fourth embodiment)
is perspective view of a funnel ent according to a fourth
embodiment.
A fimnel component 701 of the fourth embodiment includes the same funnel
portion and discharge portion as bed for the funnel component 501 of the third
embodiment, and includes a side wall portion 704 which is different from the side wall portion of
the third embodiment. The side wall n 704 is formed by the end portion, on the wide
opening side, of the opening portion being folded back outward, and the side wall portion 704
has a ity of ruled lines 707 that extend el to the l axis of the funnel portion.
In a process step of forming the side wall portion 704, the folded portion on the
wide opening side is drawn by using a die, whereby the folded portion is compressed in the
circumferential direction. The outer diameter of the side wall n 704 is designed so as to
be less than the inner diameter of the container body, as a result of the drawing process, before
the funnel component 701 is mounted to the ner body. After the funnel component 701 is
inserted into the container body, the side wall portion 704 is pressed and widened by using a die,
and welded to the inner surface of the container body. In a case where the ruled lines 707 are
provided, and expanded and contracted at the side wall portion 704 as described above, when a
sealant on the outer surface of the side wall portion 704 is melted and insertion in to the
container body is performed, generation of resin dusts due to friction n the sealant and the
inner surface of the container body, or reduction in adhering strength can be prevented, as in the
third embodiment.
As described above, a sheet member containing paper is punched and is thereafter
subjected to press work, whereby the funnel component in which strength is maintained can be
provided at low cost. Further, resource saving can be made as compared to a case where a
conventional funnel component made of resin is ed. Such a method for manufacturing
the funnel component can be applied in various s to other products, such as paper cups,
which are thus formed. Further, the method can be applied to products which are thus formed
and have polygonal ntal cross-sections as well as products that are thus formed and have
circular horizontal cross-sections.
An example of the fourth embodiment of the present invention will be described.
In the present example, the container body 120 includes a side wall 17 formed
into a cylindrical shape by using a rectangular sheet member, and a bottom portion 18 formed by
using a circular bottom member. Further, a flange portion 12 is formed, at an open end of the
container body 120, by a portion of the side wall 17 being folded outward. The flange portion
12 may be a curled portion formed by the end portion of the side wall 17 being folded back
outward over the entirety of the circumference so as to have a curved surface. Alternatively,
the flange portion 12 may be formed by the curled portion being squeezed and flattened.
The ner body 120 is made of a al including paper as a main
component, in eration of reduction in weight of the container, facilitation of disposal, and
resource saving. For example, a laminated film formed by paper and resin may be used.
When gas barrier property is ed, a gas barrier layer, such as a arent deposition film,
an aluminium foil, or the like, is included in the laminated ure.
is a cross-sectional View illustrating a state where the open end of the
packaging container 100 of the present example is sealed with the sealing lid 160. (a) of is a top view of the sealing lid 160 according to the present example. A circumferential
n 21 of the sealing lid 160 is heat-sealed to the flange portion 12 of the container body 120.
Further, a plurality of perforation lines 22 are formed at the center portion of the sealing lid 160
so as to radially extend, and the perforation lines 22 are cut by a pressing force being applied to
the g lid 160 from a ner to be refilled during usage.
As described above, since the opening portion, on the narrow opening side, of the
funnel component 701 projects from the open end of the container body, the opening portion, on
the narrow opening side, of the funnel component 701 and the sealing lid 160 are maintained so
as to be in close contact with each other at a contact portion 24 in a state where the contents 150
are packaged and sealing with the sealing lid 160 is performed. As a result, even when the
packaging container 100 turns over and lies on its side, or is turned upside down when used, the
contents 150 are prevented from moving onto the outer side of the funnel component 701.
is a cross-sectional View illustrating a method for ng the packaging
containers before contents are packaged according to the present example.
When the packaging containers 100 are transported or stored, a plate member 20
such as a laminated board or laminated paper is put, at the open end portion of the container
body 120, on a plurality of the packaging containers 100 aligned and erected on a , and, on
the plate member 20, a plurality of the packaging containers 100 and the plate member 20 are
further stacked alternately. When the plate member 20 is put on the packaging container 100 as
shown in (a) of , a tion portion between the first tapered portion 512 and the
second tapered portion 522 and a connection portion between the second tapered portion 522 and
the rge portion 503 are bent and deformed as shown in (b) of , whereby the filnnel
portion 502 is ssed. When, as in the funnel ent 701 of the present example, the
first tapered portion 512 and the second tapered portion 522 having a taper angle greater than the
first d portion 512 are provided from the wide opening side toward the narrow opening
side, the second tapered portion 522 can be elastically deformed. Therefore, even when
pressing force is applied from the plate member 20, the funnel portion 502 and the discharge
portion 503 can be prevented from being irreversibly buckled.
A distance by which the funnel component 701 projects when the funnel
component 701 is formed by a material including paper as a main component, will be described.
FIG 15 shows a graph enting a onship between loads d to the
funnel ent and displacements. In , a solid line and a dashed line represent test
results from two samples, respectively.
More specifically, shows a result obtained when samples in each of which
the funnel component 701 was mounted to the container body 120 in a state where the opening
portion, on the narrow opening side, of the funnel component 701 was caused to project from a
plane including an open end of the container body 120, by a few eters (however, a value
greater than 2 mm), were prepared and a load was applied to each opening portion on the narrow
opening side, to measure a relationship between displacement of the opening portion on the
narrow opening side, and repelling force from the opening portion on the narrow opening side.
According to the result shown in FIG 15, when a displacement of the opening portion on the
narrow g side ranges from O to about 2.2 mm (in a range from the originating point to the
vertex of the graph), repelling force from the opening portion on the narrow opening side is
increased, whereas when a displacement becomes greater than 2 mm, repelling force from the
opening portion on the narrow opening side is reduced. This result indicates that, when a
displacement of the opening portion on the narrow opening side ranges from 0 to 2.2 mm, the
funnel portion 502 and the discharge portion 503 are elastically deformed, whereas, when a
cement becomes r than about 2.2 mm, the fiinnel portion 502 and the discharge
n 503 are irreversibly buckled.
According to the result shown in , in a case where a distance by which the
opening portion, on the narrow opening side, of the flannel component 701 projects is set so as to
be greater than 0 mm and less than or equal to 2 mm, the funnel portion 502 and the discharge
portion 503 are not buckled even when the packaging containers 100 are stacked in the state
shown in (b) of , and the funnel portion 502 and the discharge portion 503 are restored to
original positions when load on the g portion, on the narrow opening side, of the funnel
component 701 is removed. In practice, it was confirmed that, in a case where load was applied
to the opening portion, on the narrow opening side, of the funnel component 701 in the state
shown in (b) of for two weeks, and the load was thereafter removed, the funnel ns
502 and the discharge ns 503 of 70% or more of the packaging containers 100 were
restored soon. Since load from the plate member 20 is received at the flange portion 12 in the
state shown in (b) of FIG 14, the funnel n 502 and the discharge portion 503 are not
deformed so as to exceed an originally determined distance by which the opening portion on the
narrow opening side projects.
As described above, it is advantageous that the funnel component 701 is fitted
into the container body 120 such that the opening portion on the narrow opening side projects
from a plane including the open end of the container body 120, and a distance d by which the
opening portion, on the narrow opening side, of the funnel component 701 projects from the
plane including the open end of the container body 120 is set so as to be greater than 0 mm and
less than or equal to 2 mm. In particular, when the distance d by which the opening portion on
the narrow opening side projects is greater than or equal to 0.5 mm, and not greater than 1.5 mm,
oning of the funnel component 701 relative to the ner body 120 is facilitated,
whereby the packaging container 100 can be easily manufactured.
As described above, in the t example, since the opening portion, on the
narrow opening side, of the funnel component 701 projects from the open end of the container
body 120, the ts 150 can be prevented from moving onto the outer side of the funnel
component 701 in a state Where the ner body 120 is filled with the contents 150 and sealed
with the sealing lid 160. Further, since a distance by which the opening portion, on the narrow
g side, of the funnel component 701 projects is optimized for the funnel component 701
made of paper, the funnel component 701 can be prevented from being irreversibly deformed
when the packaging containers 100 are stacked and stored.
Since the funnel ent 701 of the present example can be elastically
ed due to the first d portion 512 and the second tapered portion 522, even when
force applied from the sealing lid 160 to the funnel component 701 is d due to internal
pressure being changed after the open end of the container body 120 is sealed with the sealing lid
160 as shown in , the sealing lid 160 and the opening portion, on the narrow g
side, of the funnel component 701 can be maintained so as to be in close contact with each other.
In the present example, the sealing lid 160 has a tab 164 that extends from a
portion of the circumferential portion of the sealing lid 160. However, the sealing lid 160 may
not have the tab 164.
(Fifth embodiment)
A fifth embodiment of the present invention will be described. Description of
the same contents as described for the example of the fourth ment is omitted as
appropriate.
(b) of is a top View of a sealing lid 160B according to the present
embodiment. In the sealing lid 160B, the opening portion, on the narrow opening side, of the
funnel ent 701 and the contact portion 24 to be adhered to the opening portion, on the
narrow opening side, of the funnel ent 701 as described in the example of the fourth
embodiment, are lly adhered to each other at adhesion portions 25 in regions, other than the
ation lines 22, each of which is sandwiched by the perforation lines. The adhesion
portions 25 can be formed by heat-sealing being performed aneously when the
ferential portion 21 of the sealing lid 160B is heat-sealed to the flange portion 12. When
the number of the adhesion portions 25 is excessively small, or a width W of each adhesion
portion 25 is excessively small, separation occurs in on. When the number of the
adhesion portions is excessively great or the width W of each adhesion portion 25 is excessively
great, opening of the sealing lid 160B becomes difficult. Therefore, when a diameter of the
sealing lid 160B ranges from 60 mm to 120 mm, the number of the adhesion portions 25 is
preferably in a range from 3 to 18, and the width W of each adhesion portion 25 is preferably in
a range from 1 mm to 7 mm. When the number of the adhesion portions 25 and the width W of
each adhesion portion 25 are appropriately selected so as to be within the above ranges according
to the diameter of the sealing lid 160B, the adhesion portions 25 are sufficiently adhered and
opening can be favorably med.
Table 1 indicates a result of comparison as to the sealing lid 160B in sealing
property (adhesiveness), pressing strength required for opening operation, openability, and
opened state among the packaging containers according to the present embodiment that had the
adhesion portions 25 having the width W of 2 mm, 3 mm, 4 mm, and 5 mm, and the adhesion
portion 25 in which the g portion, on the narrow g side, of the fimnel component
701 was adhered to the entirety of the circumference of the t portion 24. In this case, the
diameter of each sealing lid 160B was 85 mm. For the on portions 25 having the width
W of 2 mm, 3 mm, 4 mm, and 5 mm, the number of the adhesion portions 25 between the
perforation lines 22 was one and the total number of the adhesion portions 25 was six, in each
packaging container. In this case, when the width W ranges from 2 mm to 5 m, it is
confirmed that, although there is a slight difference in the sealing property (adhesiveness) and
Openability, opening operation is bly performed in each packaging container.
[Table l]
Adhesion to
Width W 2 mm 3 mm 4 mm 5 mm the entirety of
circumference
Sealing Sli
property Slightly weak Standard Standard St:n yhtlg
(adhesiveness)
strength
Openability Slightly loose Slightly hard
Cannot be
opened
When the adhesion portions 25 as described above are provided, generation of a
gap between the opening portion, on the narrow opening side, of the funnel component 701 and
the sealing lid 160B due to the sealing lid 160B being expanded according to change of air
pressure or temperature, can be prevented. Thus, nt of the contents 150 onto the outer
side of the funnel component 701 in the case of, for example, the contents being transported is
more assuredly prevented, and resistance to buckling during e can be obtained.
In the present embodiment, the g lid 160B has the tab 164 that extends from
a portion of the circumferential portion of the sealing lid 160B. However, the g lid 160B
may not have the tab 164.
(Sixth embodiment)
A sixth ment of the present invention will be described below.
Description of the same contents as described for the example of the fourth embodiment is
omitted as appropriate. is perspective View of the packaging container 100 according to
the present ment. is a cross-sectional View taken along a line B-B’ shown in
.
(a) of is a plan View of a sealing lid 260 according to the present
embodiment. (b) of schematically illustrates a cross-section taken along a line C-C’ of
(a) of . The sealing lid 260 es an upper film 161 disposed on the outer side and a
lower film 162 disposed on the inner side such that the upper film 161 and the lower film 162 are
d. The upper film 161 has a ted structure including a barrier film (having a
thickness ranging from 12 pm to 100 um) and an easy peel member (having a thickness ranging
from 1 pm to 150 um) that are layered in order, respectively, from the outer side of the packaging
container 100. The lower film 162 has a laminated structure including a PET (polyethylene
terephthalate) layer (having a thickness of 12 um) and a polyethylene layer (having a thickness
ranging from 30 um to 200 um) that are layered in order, tively, from the outer side of the
packaging container 100. As the barrier film, a film having an inorganic oxide vapor deposition
film or a metal deposition film, or a film formed by an ethylene-vinylalcohol copolymer
(EVOH), a polyvinyl alcohol (PVA), or the like can be used.
Alternatively, as illustrated in a cross-sectional view of (c) of , the upper
film 161 may further include a PET layer (having the thickness of 12 um) on a side closer to the
outer side of the packaging container 100. The lower film 162 may further include a barrier
film (having a thickness ranging from 12 um to 100 um) between the PET layer and the
polyethylene layer. In particular, when food is stored as contents, the PET layer on which
ng with ink is performed is layered over the barrier film layer in the upper film 161 and the
lower film 162, whereby ng can be performed with enhanced safety from the viewpoint of
food hygiene.
In the lower film 162, the ation lines 22 are formed so as to extend radially
from the center over a predetermined . Namely, the perforation lines 22 are formed so as
not to reach a portion in the vicinity of the end n of the outer circumferential edge of the
sealing lid 260. Further, the upper film 161 and the lower film 162 are partially sealed to each
other in regions each of which is between the perforation lines 22, and a plurality of circular
adhesion regions 163 are formed. The upper film 161 acts to protect the lower film 162 that is
easily cut by the perforation lines 22.
When the container body 120 is sealed with the g lid 260, a circumferential
edge portion 167 of the lower film 162 and the flange portion 12 of the container body 120 are
heat-sealed to each other, and the upper film 161 and the lower film 162 are simultaneously heat-
sealed to each other at a circumferential edge portion 166. The heat-sealing is performed in not
only the top surface of the flange portion 12 but also a region outward of the top surface of the
flange portion 12 as indicated by an arrow in . Namely, an outer circumferential portion
of the circumferential edge portion 167 of the lower film 162 is pressed and ealed along
the region d of the top surface of the flange portion 12. The heat-sealed portions and the
adhesion regions 163 are indicated by diagonal lines in and (a) of , and are
indicated by thick lines in (b) of .
Further, the tab 164 is formed so as to connect with a portion of the
circumferential edge portions of the upper film 161 and the lower film 162. At the tab 164, the
168 that is a portion,
upper film 161 and the lower film 162 are adhered to each other in a region
of the tab 164, including the tip of the tab 164. Another region at which no adhesion is
performed is provided so as to extend across the tab 164. The lower film 162 includes, in the
region where no adhesion is performed, a cut 165 that extends across the tab 164. Namely, the
lower film 162 is separated by the cut 165, and the tab 164 is connected by only the upper film
1 61 .
In the present embodiment, an exemplary case is described in which the diameter
of the sealing lid 260 is 88 mm and the perforation lines 22 are formed as six straight lines that
extend radially from the center of the g lid 260. The length of each perforation is 1.5 mm,
and the length of a portion connecting between nt perforations is 2 mm. The number of
the on regions 163 is six, and each adhesion region 163 is formed between the perforation
lines 22.
A ure for refilling will be described. Firstly, the tab 164 is pinched to pull
the sealing lid 260 so as to be removed from the container body 120. is an enlarged
sectional view of a portion near the tab 164 in this state. The lower film 162 includes the
cut 165. Further, since, in the sealing lid 260, the upper film 161 is layered over the lower film
162 through the layer of the easy peel member of the upper film 161, a region between the flange
portion 12 and the cut 165 includes a region where the flange portion 12 and the lower film 162
are sealed to each other, but the upper film 161 and the lower film 162 are not sealed to each
other. Therefore, tensile force is transmitted through the upper film 161 only, and is not directly
transmitted to the portion in which the lower film 162 and the flange portion 12 of the container
body 120 are heat-sealed to each other. Namely, tensile force is concentrated on a portion
where the upper film 161 and the lower film 162 are adhered to each other on the flange portion
12. Adhesion between the easy peel member of the upper film 161 and the PET film of the
lower film 162 is lower than adhesion by ealing between the polyethylene layer of the
lower film 162 and the flange portion 12 of the container body 120. Therefore, the upper film
161 is separated from the lower film 162 due to the tensile force. Next, as in tional arts,
the lower film 162 is placed and pressed into an g of a container to be refilled, to cut the
sealing lid 260 along the perforation lines 22, whereby ts are transferred through the
furmel component 701 for refilling.
The g lid 260 needs to maintain the container body 120 in a sealed state
even when the flange portion 12 is deformed due to a force applied externally to the container
body 120. The upper film 161 and the lower film 162 are adhered to each other at not only the
circumferential edge ns 166 and 167 but also the adhesion regions 163. ore, even
when the flange portion 12 is deformed in the radial direction due to falling or the like, and
e force is applied to the surface of the sealing lid 260 in a direction el to the surface of
the g lid 260, the upper film 161 is not separated from the lower film 162, and
concentration of the tensile force on the perforation lines 22 of the lower film 162 is avoided, to
t the lower film 162 from being cut. In l, when adhering strength is evaluated, test
for separation is med by generating tensile force in a direction perpendicular to an
adhesion surface. However, the adhesion regions 163 need to prevent separation due to tensile
force in a direction parallel to the surface of the sealing lid 260. Therefore, the adhering
strength of the adhesion regions 163 is appropriately evaluated in the test for separation by
generating tensile force in a direction parallel to the surface of the sealing lid 260. An adhering
strength of the on regions 163 is advantageously such a strength that prevents separation
even when a tensile force g from 3ON to 7ON is applied in a direction parallel to the
surface of the sealing lid 260. It is confirmed that, in a case where the adhering strength is
higher than or equal to 30N, even when deformation of the flange portion 12 of the container
body 120 reaches 25 mm, separation of the upper film 161 from the lower film 162 can be
prevented and the lower film 162 can be prevented from being cut. On the other hand, when
the adhering strength is higher than or equal to 70N, it is difficult to separate the upper film 161
from the lower film 162 for refilling.
Further, since the circumferential edge portion 166 is ealed, air sealing
property of the sealing lid 260 can be assuredly obtained by the layer of the barrier film of the
upper film 161.
A method for manufacturing the sealing lid 260 and the packaging container 100
will be described with reference to . Firstly, as shown in (a) of , the perforation
lines 22 and the cut 165 are formed in a sheet-like lower—side film member 172 that is to be
formed into the lower film 162. fter, a sheet-like upper-side film member 171 that is to
be formed into the upper film 161 is layered over the lower—side film member 172. Thereafter,
the adhesion regions 163 between the upper-side film member 171 and the lower-side film
member 172, and the region 168, including a portion, of the tab 164, g the tip portion are
adhered by heat—sealing process. Next, as shown in (b) of , the opening portion of the
container body 120 is covered with the upper—side film member 171 and the lower-side film
member 172 that have been layered, and the upper-side film member 171, the lower-side film
member 172, and the flange portion 12 of the ner body 120 are subjected to heat-sealing
process. Thus, heat-sealing process for the circumferential edge portion 167 of the lower film
162 and the flange portion 12 of the ner body 120, and heat-sealing process for the
circumferential edge portion 166 of the upper film 161 and the circumferential edge portion 167
of the lower film 162 are aneously performed. The alignment in the heat—sealing process
may be performed such that the ation lines 22 formed in the lower—side film member
are positioned at almost the center of the opening portion of the container body 120, and the cut
165 is positioned outward of the flange portion 12 of the container body 120, and the alignment
need not be performed with accuracy higher than the above-described alignment. The same
the lower-side
process as described above is performed for the upper-side film member 171 and
film member 172 that are continuously ed, and the sealing lid 160 is rolled. Thus, they
are temporarily stored. fter, as shown in (c) of , the side film member 171
and the lower—side film member 172 are punched so as to have the shape of the sealing lid 260,
thereby completing the packaging container 100 with the container body 120 being sealed with
the sealing lid 260. Further, the outer circumferential portion of the circumferential edge
portion 167 of the lower film 162 is preferably heat-sealed to the flange portion 12 in a state
where the outer circumferential portion is pressed along a region outward of the top surface of
the flange portion 12. The methods for manufacturing the sealing lid 260 and the packaging
container 100 are not limited to the above methods. The methods can be d in various
manners. For example, the order in which the heat—sealing process and the punching process
are performed may be reversed.
As shown in the ctive View of (a) of , in a case where the outer
circumferential portion of the circumferential edge portion 167 of the lower film 162 is heat-
sealed and crinkled in a state where the outer circumferential portion is pressed along the outer
edge of the flange portion 12, the shape of the packaging container 100 becomes compact, its
outer appearance is improved, and separation of the g lid 260 due to, for example, contact
between the end portions of the sealing lids 260 during storage, circulation, or the like, is less
likely to occur. In this case, a polyester—based material is ably used for the easy peel
member of the upper film 161. Thus, a heating temperature for the ealing process can be
appropriately set, whereby a region where the lower film 162 is adhered to a portion outward of
the top surface of the flange portion 12 of the container body 120, but the upper film 161 and the
lower film 162 are not adhered to each other, can be formed in the crinkled portion. Thus,
when the upper film 161 is separated from the lower film 162, separation can be prevented from
becoming difficult.
r, in a case where crinkling is performed, as further illustrated in a cross-
nal view of (b) of , the radius of the sealing lid 260 may be set so as to be greater
than a sum of the outer radius of the flange n 12 and the height of the curled top n of
the flange portion 12. Thus, even if the upper film 161 and the lower film 162 are pseudo-
adhered to each other at the outer edge portion of the flange portion 12, a region in which no
adhesion is performed can be provided outside the sealing lid 260. Thus, the sealing lid 260
can be prevented from being cut from the outer circumferential portion when opened. The
radius of the sealing lid 260 is preferably set so as to extend beyond the lower end of the curled
top portion of the flange portion 12 by about 1 mm to about 3 mm. r, the radius of the
sealing lid 260 may not be increased over the entirety of the circumference of the sealing lid 260.
The radius may be increased over at least half the entire circumference of the sealing lid 260
including the tab 164 at the center such that the cutting can be avoided in a range in which the
cutting of the g lid 260 is likely to be increased due to tensile force from the tab 164.
By the above cturing method, a position at which the circumferential edge
portion 167 of the lower film 162 and the flange portion 12 of the container body 120 are heat-
sealed to each other, and a position at which the upper film 161 and the lower film 162 are heat-
sealed to each other become almost the same as viewed from a direction orthogonal to the
surface of the sealing lid 260 even when alignment is not performed with enhanced accuracy.
Thus, when the tab 164 is pinched and the sealing lid 260 is pulled so as to be separated from the
container body, a portion of the lower film 162 closer to the center of the sealing lid 160 than the
cut 165 is prevented from moving upward together with the upper film 161, as shown in ,
and tensile force transmitted from the tab 164 is likely to be concentrated on the end portion of
the position at which the upper film 161 and the lower film 162 are heat-sealed to each other.
Further, an adhering strength with which the easy peel member of the upper film 161 and the
lower film 162 are adhered to each other is lower than an ng strength with which the lower
film 162 and the flange n 12 of the container body 120 are adhered to each other, and
therefore the upper film 161 is separated from the lower film 162, and the lower film 162 is not
separated from the flange portion 12 of the container body 120. In this case, the adhering
strength is a normal ng strength that is evaluated by generating tensile force in the
direction perpendicular to the adhesion surface.
On the other hand, in a case where the upper film 161 and the lower film 162 are
usly adhered to each other at the circumferential edge portion 166, and thereafter the
circumferential edge portion 167 of the lower film 162 and the flange portion 12 of the container
body 120 are heat-sealed to each other, alignment needs to be performed with enhanced accuracy
in order to align a heat-sealing position at which the lower film 162 and the flange portion 12 are
heat-sealed to each other, with an on position at which the upper film 161 and the lower
film 162 are adhered to each other, as viewed from a direction orthogonal to the surface of the
sealing lid 260. When the accuracy for the alignment is low, the adhesion position may be
displaced outward of the heat-sealing position as shown in (a) of . In this case, when the
tab 164 is pinched up, the lower film 162 is moved upward together with the upper film 161, and
tensile force transmitted from the tab 164 is less likely to be concentrated on an end portion, as a
separation starting position, of an adhesion portion at which the upper film 161 and the lower
film 162 are adhered to each other, and separation of the upper film 161 from the lower film 162
becomes difficult.
In general, the same problem arises in a general packaging container in which a
sealing lid having an upper film and a lower film that are layered is used and only the upper film
is separated when used. (b) of shows an example of a cross-section of a packaging
container in which a container body 1120 is sealed with a sealing lid 1160 in which an upper film
1161 and a lower film 1162 are layered. In this example, a separation layer 1169 is provided
between the upper film 1161 and the lower film 1162. Further, a half cut 1165 is formed in a
tab 1164 on the lower film 1162 side. In such an exemplary case, in a case where the lower
film 1162 is sealed to a flange n 1012 in a state where the half out 1165 is distant from an
outer edge of the flange portion 1012 in the outward direction by a predetermined distance or
longer, since the upper film 1161 and the lower film 1162 are adhered to each other over the
entirety of their surfaces, the lower film 1162 is moved upward together with the upper film 1161
by pinching up the tab 1164. Therefore, tensile force is less likely to be concentrated on the
half cut 1165 ponding to the separation starting position, and separation of the upper film
1161 from the lower film 1162 becomes difficult. Further, in a case where the lower film 1162
is sealed to the flange portion 1012 in a state where the half out 1165 overlaps the upper portion
of the flange portion 1012, the tion starting position is lost. Therefore, even when the tab
1164 is pulled, the upper film 1161 cannot be separated from the lower film 1162. For these
reasons, the half out 1165 needs to be positioned with an enhanced accuracy so as to be distant
from the outer edge of the flange portion 1012 of the container body 1120 in the outward
ion within a predetermined range.
In the present ment, separation of the upper film 161 is facilitated without
performing alignment between the sealing lid 260 and the flange portion 12 with an enhanced
lines 22.
accuracy, and the upper film 161 can t the lower film 162 having the ation
Therefore, strength of the sealing lid 260 itself is enhanced to reduce the number of components,
thereby enabling reduction of production cost. As shown in , es 170 may be
formed in the tab 164 by embossing s after the upper film 161 and the lower film 162 are
sealed to each other, whereby the tab 164 may have such a shape that sliding is less likely to
occur and pinching is facilitated. Further, the shape of the tab 164 is not d thereto, and
may be changed as appropriate.
(Seventh embodiment)
A h embodiment of the present invention will be described. is a
plan View of a sealing lid 360 according to the present embodiment and schematically illustrates
a cross-section thereof taken along a line D-D’. The g lid 360 is formed by the adhesion
region 163 of the sealing lid 260 of the sixth embodiment being formed into an annular shape
instead of the adhesion regions 163 being formed as a plurality of circular s. The center
of the annular shape corresponds to the center of the g lid 360. Further, the tip portion of
the tab 164 is partially adhered in a plurality of circular adhesion regions 169. Description of
the same contents as described for the sixth ment is omitted as appropriate.
In the present embodiment, an exemplary case is described where the diameter of
the sealing lid 360 is 86.8 mm, and the length of each perforation line 22 is 55 mm. r, the
inner diameter for the annular adhesion region 163 is 60 mm, and the outer diameter is 66 mm.
The diameter of each on area of the adhesion regions 169 in the tip n of the tab 164
is 2 mm, and the adhesion areas are ed at intervals of 6 mm.
An adhering strength of the adhesion region 163 preferably ranges from 30N to
70N in the direction parallel to the surface of the sealing lid 360. Since the adhesion region 163
is provided over the entirety of the circumference of an annular portion surrounding the
perforation lines 22, an ng strength can be enhanced in the direction parallel to the surface
of the sealing lid 360. In particular, in a case where the adhering strength ranges from SON to
70N, it was confirmed that, even in the case of the atmospheric pressure or pressure inside the
packaging container 100 being changed, separation of the upper film 161 from the lower film
162 was able to be prevented and the lower film 162 was able to be prevented from being cut,
and transportation by air for about 10 hours was able to be performed under an external pressure
of 0.8 atm.
Since ink, varnish, or the like is not used for adhesion in the sealing lids 260 and
360 of the above embodiments, no odor is generated. Further, since a transparent film is used,
printing can be med with excellent outer appearance, and printing can be also performed
on the upper film 161 or the lower film 162 so as to obtain transparent lity.
In the sealing lid 260, as shown in (a) of , the length of each perforation
line 22 preferably ranges from 50% of the er of the sealing lid 260 to 75% thereof.
When the perforation lines 22 are distant from the circumferential edge portion of the sealing lid
260, resistance to g impact can be enhanced. Further, also in the sealing lid 360, as shown
in (b) of , under the condition that the perforation lines 22 are distant from the inner edge
of the circular adhesion region 163, the length of each perforation line 22 preferably ranges from
50% of the diameter of the sealing lid 360 to 75% thereof. Thus, even when g occurs
during storage, circulation, or the like, the sealing lids 260 and 360 can be prevented from being
cut. For example, when the diameter of the sealing lid was 100 mm and the length of each
perforation line 22 was 78 mm, the sealing lid was cut at a rate of about 10% in a falling test in
which the height was 60 cm and the angle was 45°. r, when the length of each
perforation line 22 was 68 mm, cutting of the sealing lid was not confirmed in the g test.
Further, the g lid 260 according to a first ation of the present
embodiment where, as shown in a plan view of (a) of , the adhesion regions 163 include
an annular region in addition to a plurality of circular regions to enhance adhesiveness, may be
implemented. Further, as shown in a plan View of (b) of , a part of the annular adhesion
region 163 may be formed as an increased width portion 191 having an increased width, and an
air slit 192 may be formed in the upper film 161 so as to extend from an inner region surrounded
by the annular adhesion region 163 through the inner circumferential edge of the increased width
portion 191 to the inside of the adhesion region 163. The increased width portion 191 and the
air slit 192 are formed near a ng end and a finishing end in the heat-sealing process for the
on region 163. Thus, when the g into a roll shape or the like is performed after the
heat-sealing s, air accumulated in the adhesion region 163 (in-between portion between
the upper film 161 and the lower film 162) can be vented through the air slit 192, to prevent the
seal from being cut. Further, by the air slit 192 being formed in the increased width portion
191, even when positioning accuracy is low, the air slit 192 can be prevented from extending
across the adhesion region 163, to prevent degradation of the quality in the sealing.
Furthermore, in the sealing lid 260 according to a second modification of the
present embodiment, as shown in (a) of , the tab 164 may be welded to the side wall 17 of
the container body 120. In this case, at the tab 164, simultaneously when the lower film 162
and the side wall 17 are welded to each other, the upper film 161 and the lower film 162 are
welded to each other. The welded region of the tab 164 is only the center portion on the tip side
as shown in a plan View of (b) of . In a case where the tab 164 is welded to the side wall
17 of the container body 120, when the tab 164 is removed from the side wall 17 in the case of
opening being attempted by using the tab 164, for example, a resin of the e of the side wall
17 is also d and a trace of opening operation is left, to prevent harassment at shops and
the like.
Further, the following scope of the present invention based on the sixth to the
seventh embodiments can be considered.
A packaging container in which the length of the perforation line ranges from
50% of the diameter of the sealing lid to 75% thereof.
(Eighth embodiment)
An eighth embodiment of the present ion will be bed below. The
present embodiment is different from the seventh embodiment in sealing lid. Also for the
sealing lid, description of the same contents as described for the seventh embodiment is omitted
as appropriate. is a plan View of a sealing lid 460 according to the t embodiment.
The sealing lid 460 is formed by the upper film 161 and the lower film 162 being layered,
similarly to the sealing lid 360. This laminated structure of the films is the same as that
described for the seventh embodiment.
In the lower film 162, the perforation lines 22 extend radially from the center over
a predetermined length. Namely, the perforation lines 22 are formed so as not to reach a
portion near the end n of the outer circumference edge of the sealing lid 460. Further, the
upper film 161 and the lower film 162 are sealed so as to cover the perforation lines 22 in a
circular region, to form the circular on region 163. When the on region 163 having
such a ure is provided, contents are prevented from ng through the perforation lines 22
to enhance its outer appearance and hygiene.
The following scope of the present invention based on the present ment
can be considered.
A packaging container in which the adhesion region of the sealing lid includes a
ar region that covers the ation lines.
(Ninth embodiment)
A ninth embodiment of the present invention will be described. The present
embodiment is different from the seventh embodiment in sealing lid. Also for the sealing lid,
description of the same contents as described for the seventh embodiment is omitted as
appropriate. is a plan View of a sealing lid 560 according to the present embodiment.
The sealing lid 560 is formed such that the sealing lid 360 of the seventh embodiment includes:
the increased width portion 191 formed by a part of the r adhesion region 163 having an
increased width; and the upper film 161 having the air slit 192 that extends from an inner region
surrounded by the adhesion region 163 through the inner circumferential edge of the increased
width portion 191 to the inside of the adhesion region 163. The increased width portion 191
and the air slit 192 are formed near a starting end and a finishing end in the heat-sealing process
for the adhesion region 163. Further, by the air slit 192 being formed in the increased width
portion 191, even when positioning accuracy is low, the air slit 192 can be prevented from
extending across the adhesion region 163, to t degradation of the quality in the sealing.
Further, an adhesion region 1163 is provided so as to extend along the perforation lines 22 from
some portions of the adhesion region 163. The center for the annular portion corresponds to the
center of the sealing lid 560. When the adhesion regions 163 and 1163 having such structures
are ed, contents are prevented from spilling through the perforation lines 22 to enhance its
outer appearance and hygiene, and generation of air accumulation in a region surrounded by the
on regions 163 and 1163 can be reduced. Further, when, for example, the rolling into a
roll shape or the like is performed after the heat-sealing process, air accumulated, in an in-
between region between the upper film 161 and the lower film 162, inside the adhesion region
163 can be vented h the air slit 192, to prevent the seal from being cut. The tip portion of
the tab 164 is partially adhered in a plurality of ar on regions 169.
In the present embodiment, an ary case is described where the diameter of
the sealing lid 560 is 86.8 mm, and the length of each perforation line 22 is 55 mm. Further, the
inner diameter for the annular adhesion region 163 is 60 mm, and the outer diameter is 66 mm.
The diameter of each on area of the adhesion s 169 in the tip portion of the tab 164
is 2 mm, and the adhesion areas are provided at intervals of 6 mm.
The ng strength of the on regions 163 and 1163 preferably ranges
from 30N to 70N in a direction parallel to the surface of the sealing lid 560. The adhesion
region 163 is provided over the entirety of the circumference of the annular portion surrounding
the perforation lines 22, and the adhesion region 1163 is provided over the entirety of the region
of the ation lines 22. ore, the adhering strength can be enhanced in the direction
parallel to the surface of the sealing lid 560.
The following scope of the present invention based on the present embodiment
can be considered.
A packaging container in which the adhesion region of the sealing lid further
includes a region formed so as to cover the perforation lines and extend up to the annular region.
(Tenth embodiment)
A tenth embodiment of the present invention will be described. The present
embodiment is different from the seventh ment in sealing lid. Also for the sealing lid,
description of the same contents as described for the seventh embodiment is d as
appropriate. is a plan View of a sealing lid 660 according to the present embodiment.
The sealing lid 660 is formed such that, in the sealing lid 360 of the seventh embodiment, the
adhesion region 1163 along the perforation lines 22 does not contact with the annular adhesion
region 163. Further, the increased width portion 191 and the air slit 192 are formed. When
the adhesion region 1163 having such a structure is provided, contents are prevented from
spilling h the perforation lines 22, its outer appearance and hygiene are enhanced, and air
accumulated in the adhesion region 1163 can be more assuredly vented, y rolling can be
performed without trouble when the sealing lid 660 is rolled and stored. Further, the tip portion
of the tab 164 is partially adhered in the plurality of circular adhesion regions 169.
The adhering strength of the on regions 163 and 1163 preferably ranges
from 30N to 7ON in a direction parallel to the surface of the sealing lid 660. The adhesion
region 163 is provided over the entirety of the circumference of the annular portion surrounding
the perforation lines 22, and the on region 1163 is provided in a portion of the region of
the perforation lines 22. Therefore, the adhering strength can be enhanced in the direction
parallel to the e of the sealing lid 660.
The following scope of the present invention based on the present embodiment
can be considered.
A packaging container in which the adhesion region of the sealing lid further
includes a region formed so as to cover the perforation lines and so as not to contact with the
r region.
(Eleventh embodiment)
An eleventh embodiment of the t invention will be described. The present
ment is ent from the seventh embodiment in sealing lid. Also for the sealing lid,
description of the same contents as described for the h embodiment is omitted as
riate. is a plan view of a sealing lid 760 according to the present embodiment.
The sealing lid 760 is formed such that, in the sealing lid 360 of the seventh embodiment, the
adhesion region 1163 is formed as plural ar regions which are point-symmetric with respect
to the center meeting portion of the perforation lines 22, and the plural circular regions are
provided in a circular region including, as its center, the center meeting portion of the perforation
lines 22, so as to be on the perforation lines 22 inside a funnel inner diameter 133. Further, the
increased width portion 191 and the air slit 192 are . When the adhesion region 1163
having such a structure is provided, contents can be prevented from spilling through the
perforation lines 22, its outer appearance and hygiene can be enhanced, air accumulation in the
adhesion region 1163 can be prevented, and air can be sufficiently vented. Therefore, when the
sealing lid 760 is rolled and stored, removal of the seal due to air lation can be prevented.
Further, the tip portion of the tab 164 is partially adhered in the plurality of circular adhesion
regions 169.
The ng strength of the adhesion regions 163 and 1163 preferably ranges
from 30N to 70N in a direction parallel to the surface of the sealing lid 760. Since the adhesion
region 163 is provided over the entirety of the circumference of the annular portion surrounding
the perforation lines 22, and the adhesion region 1163 is ed over the perforation lines 22 as
a plurality of ar regions, adhering strength can be enhanced in the direction parallel to the
surface of the sealing lid 760.
(Twelfth embodiment)
A h embodiment of the present invention will be described. The present
embodiment is different from the seventh embodiment in sealing lid. Also for the sealing lid,
description of the same contents as described for the seventh embodiment is omitted as
appropriate. is a plan view of a g lid 860 according to the present embodiment.
The sealing lid 860 is formed such that, in the sealing lid 360 of the seventh embodiment, the
on region 1163 is formed so as to include: a circular region including, as its , the
center g portion of the ation lines 22; and regions which cover the perforation lines
22, and extend outward from portions inside the inner diameter of the funnel component so as
not to contact with the r region. Further, the increased width portion 191 and the air slit
192 are formed. When the adhesion region 1163 having such a structure is provided, contents
can be prevented from spilling through the perforation lines 22, its outer appearance and hygiene
can be enhanced, and air accumulation can be prevented, thereby facilitating rolling and storage
of the sealing lid 860. Further, in the present embodiment, at the tab 164, the upper film 161
and the lower film 162 are adhered to each other in the region 168 that is a portion, of the tab
164, ing the tip portion thereof. However, another region in which no adhesion is
performed is provided so as to extend across the tab 164. The tip portion of the tab 164 may be
partially adhered in a plurality of circular adhesion regions. The shape of the tip portion of the
tab 164 is not limited to the shape shown in . The same shape as described for the
eighth to the eleventh embodiments may be used.
In the present embodiment, an exemplary case where the er of the sealing
lid 860 is 92 mm, and the length of each perforation line 22 is 67 mm, is bed. r, the
center meeting portion of the perforation lines 22 corresponds to the center of the sealing lid 860.
An angle formed by the adjacent perforation lines 22 that extend radially from the center of the
sealing lid 860, is 60°. The perforation lines 22 are formed as three straight lines. The lengths
of the perforations are 2 mm, 6 mm, 7 mm, 7 mm, 7 mm, 7 mm, 7 mm, 7 mm, 6 mm, and 2 mm
in order, respectively, from the outer side. The length of a portion connecting between adjacent
perforations is 1 mm. The inner diameter for the annular on region 163 is 65 mm and the
outer diameter is 71 mm. Furthermore, the length of the air slit 192 is 4 mm. The adhesion
region 1163 is formed so as to include: one circular area that includes, as its center, the center
meeting portion of the perforation lines 22 and has the diameter of 15 mm; and two adhesion
areas which are on each perforation line 22 and each of which is 16 mm long in the direction
along the perforation line 22 and 9 mm long in the ion orthogonal to the perforation line
22, such that the total number of the adhesion areas of the adhesion region 1163 is seven.
The adhering strength of the adhesion regions 163 and 1163 preferably ranges
from 30N to 70N in a direction parallel to the surface of the sealing lid 860. The on
region 163 is provided over the entirety of the circumference of the annular portion surrounding
the perforation lines 22, and the adhesion region 1163 is provided in regions that cover the
perforation lines 22, and extend from portions inside the inner diameter of the fiinnel component
so as not to contact with the annular region. ore, the adhering strength can be enhanced
in the direction parallel to the surface of the sealing lid 860.
The following scope of the present invention based on the present embodiment
can be considered.
A packaging container in which the adhesion region of the sealing lid further
includes: a circular region including, as its center, the center meeting portion of the perforation
lines; and regions which cover the perforation lines and extend outward from portions inside the
inner diameter of the funnel ent so as not to contact with the annular region.
(Thirteenth embodiment)
A thirteenth embodiment of the present invention will be described. The present
ment is different from the twelfth embodiment in g lid. Also for the sealing lid,
ption of the same contents as described for the twelfth embodiment is omitted as
riate. (a) of is a plan view of a sealing lid 960 according to the present
embodiment, and (b) of schematically rates a cross-section taken along a line E—E’
shown in (a) of . The sealing lid 960 is formed such that, in the sealing lid 860 of the
twelfth embodiment, one adhesion region 1163 is provided, over each perforation line 22, inside
the inner diameter of the funnel component, and one adhesion region 1163 is provided, over each
perforation line 22, outside the inner diameter of the funnel component, instead of regions being
provided, in the sealing lid 860 of the twelfth embodiment, so as to cover the perforation lines 22
of the adhesion region 1163, and extend from portion inside the inner er of the funnel
component so as not to contact with the annular region, and further the adhesion regions 1163 of
the t embodiment are point-symmetric with respect to the center of the sealing lid 960.
When the adhesion region having such a structure is provided, contents are prevented from
spilling through the perforation lines 22, its outer ance and hygiene are enhanced, and the
g strength at the perforation lines 22 is prevented from being excessively ed. In
the present embodiment, at the tab 164, the upper film 161 and the lower film 162 are adhered to
each other in the region 168 that is a portion, of the tab 164, including the tip portion thereof.
However, another region in which no adhesion is performed is provided so as to extend across
the tab 164. The tip portion of the tab 164 may be lly adhered in the plurality of circular
adhesion regions. Further, the shape of the tip portion of the tab 164 is not limited to the shape
shown in , and may be the same shape as described for the eighth to the eleventh
embodiments.
In the t embodiment, an exemplary case where the diameter of the sealing
lid 960 is 92 mm, and the length of each perforation line 22 is 67 mm, is described. The center
meeting n of the perforation lines 22 corresponds to the center of the sealing lid 960. An
angle formed by the adjacent perforation lines 22 that extend radially from the center of the
sealing lid 960 is 60°. The perforation lines 22 are formed as three straight lines. The lengths
of the perforations are 2 mm, 6 mm, 7 mm, 7 mm, 7 mm, 7 mm, 7 mm, 7 mm, 6 mm, and 2 mm
in order, tively, from the outer side. The length of a portion connecting between adjacent
perforations is 1 mm. The inner diameter for the annular adhesion region 163 is 65 mm and the
outer er is 71 mm. The funnel inner diameter 133 is 35.4 mm. The length of the air slit
192 is 4 mm. The adhesion region 1163 is formed so as to include: one circular area that
includes, as its center, the center meeting portion of the perforation lines 22 and has the diameter
of 15 mm; and two areas ed on each perforation line 22 inside the funnel inner diameter,
and two areas provided on each perforation line 22 outside the funnel inner diameter, such that
the total number of the areas of the adhesion region 1163 is thirteen.
The adhering strength of the adhesion regions 163 and 1163 ably ranges
from 30N to 70N in a direction el to the surface of the sealing lid 960. The adhesion
region 163 is provided over the ty of the circumference of the annular portion surrounding
the perforation lines 22, and the adhesion region 1163 is provided over the perforation lines 22
inside and outside the inner diameter of the funnel component. Therefore, the adhering strength
can be enhanced in the direction parallel to the surface of the sealing lid 660.
(Fourteenth embodiment)
A fourteenth embodiment of the present invention will be described. The
present ment is different from the thirteenth embodiment in sealing lid. Also for the
sealing lid, description of the same contents as described for the thirteenth embodiment is
d as appropriate. (a) of is a plan view of a sealing lid 1060 according to the
present embodiment. (b) of schematically illustrates a cross-section taken along a line
F—F’ shown in (a) of . The sealing lid 1060 is formed such that, in the sealing lid 960 of
the thirteenth ment, one more adhesion region 1163 is provided over each perforation line
22 inside the inner diameter of the funnel component. In a case where the adhesion region
having such a structure is provided, even when the diameter of the sealing lid is increased,
contents are prevented from spilling through the perforation lines 22, its outer appearance and
hygiene are enhanced, and the opening strength at the perforation lines 22 is prevented from
being excessively enhanced. In the t embodiment, at the tab 164, the upper film 161 and
the lower film 162 are adhered to
each other in the region 168 that is a n, of the tab 164, including the tip portion f.
However, another region in which no on is performed is provided so as to extend across
the tab 164. The tip portion of the tab 164 may be partially adhered in the plurality of circular
adhesion regions. Further, the shape of the tip portion of the tab 164 is not limited to the shape
shown in , and may be the same shape as described for the eighth to the th
embodiments.
In the present embodiment, an exemplary case where the diameter of the sealing
lid 1060 is 108 mm and the length of each perforation line 22 is 84 mm, is described. The
center meeting portion of the perforation lines 22 corresponds to the center of the sealing lid
1060. An angle formed by the adjacent perforation lines 22 that extend radially from the center
of the g lid 1060, is 60°. The perforation lines 22 are formed as three straight lines. The
lengths of the perforations are 5 mm, 5 mm, 9 mm, 9 mm, 9 mm, 9 mm, 9 mm, 9 mm, 5 mm, and
mm in order, respectively, from the outer side. The lengths of portions each connecting
n adjacent perforations are 1 mm, 1 mm, 1 mm, 1 mm, 2 mm, 1 mm, 1 mm, 1 mm, and 1
mm in order, respectively, from the outer side. The inner diameter for the annular adhesion
region 163 is 83 mm and the outer diameter is 89 mm. The length of the air slit 192 is 5 mm.
The adhesion region 1163 is formed so as to include: one ar area that includes, as its center,
the center meeting portion of the perforation lines 22 and has the diameter of 20 mm; and four
adhesion areas provided over each perforation line 22 inside the funnel inner diameter and two
adhesion areas provided over each perforation line 22 outside the fiinnel inner diameter, such
that the total number of the adhesion areas of the adhesion region 1163 is 19. Further, each of
the adhesion areas provided inside and outside the funnel inner diameter is 2 mm long in the
direction along the corresponding ation line 22, is 6 mm long in the direction orthogonal to
the corresponding perforation line 22, and has corners each chamfered so as to have a curved
e with R05. The adhesion areas provided over each perforation line 22 inside and
outside the funnel inner diameter are distant from the center of the sealing lid 1060 by 14.5 mm,
24.5 mm, and 32.5 mm so as to be point-symmetric with respect to the center of the sealing lid
1 060.
The adhering strength of the adhesion regions 163 and 1163 preferably ranges
from 30N to 70N in a direction parallel to the surface of the sealing lid 760. The on
region 163 is provided over the entirety of the circumference of the r portion nding
the perforation lines 22, and the adhesion region 1163 is provided over the perforation lines 22
inside and outside the inner diameter of the fiinnel component. Therefore, the adhering strength
can be enhanced in the direction parallel to the surface of the sealing lid 1060.
In the sealing lids 460 to 1060 according to the above embodiments, since ink,
varnish, and the like are not used for adhesion, no odor is generated. Further, a transparent film
is used, and printing can be performed with excellent outer appearance, and printing can be also
performed on the upper film 161 or the lower film 162 so as to obtain arent lity. In
the sealing lids 360 to 1060 according to the above embodiments, the upper film 161 may further
include a PET layer (having the thickness of 12 pm) on a side closer to the outer side of the
packaging container 100. Further, the lower film 162 may fithher include a barrier film (having
a thickness ranging from 12 um to 100 mm) between the PET layer and the polyethylene layer.
In particular, when food is stored as contents, the PET layer on which printing with ink is
performed is layered over the barrier film layer in the upper film 161 and the lower film 162,
whereby printing can be med with enhanced safety from the Viewpoint of food hygiene.
In the sixth to the fourteenth embodiments, when the upper film 161 is separated
from the lower film 162, the perforation lines 22 gradually become exposed while the separation
progresses. When the g lid is protected by a conventional shrink film or covering cap,
perforation lines become exposed soon by removing the shrink film or covering cap. In a high
land or at a high temperature, pressure inside the packaging container is higher than the external
re. Therefore, in tional arts, the perforation lines may be cut aneously when
the perforation lines become exposed, and the sealing lid may be cut and the ts may be
dispersed. On the other hand, in the present embodiment, the separation gradually progresses
with the lower film 162 being protected by the upper film 161. Therefore, air passes through
the perforation lines 22 t cutting, and difference between air re inside the packaging
ner 100 and air pressure outside the packaging container 100 is eliminated. Thus, the
lower film 162 can be prevented from being cut.
Furthermore, the size of each of the sealing lids 260 to 1060, the number of the
perforation lines 22 of the lower film 162, the length of each perforation line 22 thereof, the
position of the adhesion region 163 and the number of the adhesion regions 163, and the like are
not limited to the exemplary ones described in each embodiment, and may be changed as
appropriate.
An exemplary modification of each embodiment in which the tab 164 of the
sealing lid may be welded to the side wall 17 of the container body 120 may be implemented,
similarly to the second ation of the seventh embodiment. Further, in each embodiment,
the tab 164 may be subjected to embossing process. The shape for the tab 164 is not limited to
any specific shape.
The scopes of the present invention, as indicated below, based on the sixth to the
fourteenth embodiments can be considered.
1. A ing container in which the tab has a projection formed by the upper
film and the lower film being ted to embossing process.
2. A packaging container in which the easy peel member of the upper film is
formed by a polyester—based resin.
3. A packaging container in which the barrier film of the upper film is a film
having an inorganic oxide vapor deposition film or a metal deposition film, or a film formed by
an ethylene-vinylalcohol mer (EVOH), or a polyvinyl alcohol (PVA).
(Fifteenth ment)
A ing container 200 according to the present ment will be
described. is a schematic cross-sectional view of a container body 220 of the
packaging container 200. An outline of the packaging container 200 of the present embodiment
will be described with reference to . The packaging container 200 is the packaging
container in which the container body 220 as described below is used as the container body 120
according to each of the first to the fourteenth embodiments.
The side wall 17 forms a cylindrical shape. The height of the side wall 17 is, for
example, 180 mm, and the outer diameter of the side wall 17 is, for example, 95 mm. The
bottom portion 18 is provided on the lower end side of the side wall 17. For example, the
bottom portion 18 is provided so as to have a height that corresponds to a certain distant from the
lower end of the side wall 17 toward the upper end side. More specifically, the bottom portion
18 is provided so as to be higher than the lower end of the side wall 17 by 8 mm in a direction
toward the upper end side. The outer edge of the bottom portion 18 connects with the inner
side surface of the side wall 17. In , an opening is formed at the upper portion of the
container body 220. As in tional packaging containers, when contents are packaged in
the ing container 200, the opening is sealed, y the inner portion of the packaging
container 200 is hermetically sealed. In an example shown in (a) of , the bottom portion
18 forms a flat e. In an e shown in (b) of , the center portion of the bottom
n 18 projects outward of the container body 220.
is an external view of the bottom portion 18 shown in as viewed
from the outside of the container body 220. In an example shown in , 24 ruled lines
1201 are provided on the outer surface of the bottom portion 18 at regular intervals so as to
radially extend as viewed from the center portion of the bottom portion 18. In this example, the
length of each of the ruled lines 1201 is 12 mm. In , the solid lines in the circle
represent the ruled lines. The number of the ruled lines is calculated such that each of the ruled
lines that radially extend as viewed from the center portion of the bottom portion 18 is one ruled
line. Namely, a set of the ruled lines that are point-symmetric with respect to the center of the
bottom portion 18 is calculated as two ruled lines.
The number of the ruled lines 1201 and the length of each ruled line 1201 are not
limited to the exemplary ones as shown in . As other examples, a first, second, and third
modifications of the present ment are shown in and . In an example
shown in (a) of , 12 ruled lines 1201 are provided on the outer surface of the bottom
portion 18 at regular intervals so as to radially extend as viewed from the center portion of the
bottom portion 18. In this example, the length of each of the ruled lines 1201 is 22 mm.
Further, in an example shown in (b) of , 12 ruled lines 1201 each having the length of 30
mm are provided on the outer surface of the bottom portion 18 at regular intervals. In an
example shown in , 8 ruled lines 1201 each having the length of 12 mm and 8 ruled lines
1201 each having the length of 22 mm are provided on the outer surface of the bottom portion 18
at regular intervals such that the ruled line 1201 having the length of 12 mm and the ruled line
1201 having the length of 22 mm are alternately provided. The ruled lines may not be provided
at regular intervals.
The length of each ruled line 1201 may be greater than or equal to 5 mm and less
than 100 mm. The number of the ruled lines 1201 may be greater than or equal to 6 and less
than 30. When the length of each ruled line 1201 is less than the above length, or the number
of the ruled lines 1201 is less than the above , crinkling is likely to occur. On the other
hand, when the length of each ruled line 1201 is greater than the above length, or the number of
the ruled lines 1201 is greater than the above number, rigidity of the bottom portion 18 is
excessively reduced, and the strength of the packaging container is reduced. The number of the
ruled lines 1201 is particularly preferably greater than or equal to 6, and less than 25.
Further, a fourth modification of the present ment may be implemented in
which, in addition to the 12 ruled lines 1201, ar lines 1202 that intersect the 12 ruled lines
1201 may be provided, on the outer surface portion of the bottom n 18, around the center
portion of the bottom portion 18, which ponds to the center of the circular shape formed by
each circular line, as shown in .
In each of the above examples, the ruled lines 1201 are not formed in the center
portion of the bottom portion 18. However, the ruled lines 1201 may pass through the center
portion of the bottom portion 18.
r, in each of the above examples, the bottom portion 18 is circular.
However, the bottom portion 18 may be formed such that the upper and lower flat planes have a
polygonal shape such as a square shape or a regular hexagon. Thus, the shape of the bottom
portion 18 is not limited to any specific shape. The side wall 17 may have its inner side n
connected with the outer edge of the bottom portion 18.
(a) of is a tic cross-sectional view illustrating a portion near the
bottom portion 18 of the packaging container 200 shown in (a) of . In the example
shown in (a) of and (a) of 40, the bottom portion 18 forms a flat surface without
projecting, and the ruled lines 1201 (and/or the lines 1202) are simply formed. (b) of is
a schematic cross—sectional View illustrating a portion near the bottom portion 18 of the
packaging container 200 shown in (b) of . In the example shown in (b) of and
(b) of FIG 40, the center portion of the bottom portion 18 projects outward of the packaging
container 200 by 5 mm as compared to the height of the outer edge of the bottom n 18.
As shown in FIG 35 and , the lower end portion of the side wall 17 is bent inward, and a
planar fixing n that can be bent is provided outside the substantially outer edge of the
bottom portion 18. The fixing portion is inserted into a gap formed by the side wall 17 having
been bent, and the fixing portion and the side wall 17 are thereafter adhered to each other, to fix
the bottom portion 18 to the side wall 17.
(c) of is a schematic cross-sectional view illustrating a modification of a
portion near the bottom portion 18 of the packaging container 200. In an example shown in (c)
of , the fixing n at the outer edge of the bottom portion 18 and the side wall 17 that
sandwiches the fixing portion are adhered to each other so as to reach a predetermined height
from a bending portion, of the side wall 17, which forms the lower end of the packaging
container 200, thereby assuredly sealing the packaging container 200, and a aled portion
230 in which no adhesion is performed is formed thereabove. In this example, the more greatly
the center portion of the bottom n 18 projects outward of the packaging container 200, the
more y the non-sealed portion 230 of the fixing portion at the outer edge of the bottom
portion 18 is ed inward. Therefore, the bottom portion 18 is easily caused to project,
and projection can be increased while crinkling that causes poor outer appearance as described
below can be reduced with enhanced effectiveness. In a region where the fixing n at the
outer edge of the bottom portion 18, and the side wall 17 overlap each other, the length of the
region in which the adhesion is performed preferably ranges from 1 mm to 15 mm, and
particularly preferably ranges from 2 mm to 5 mm. Further, the length of the non-sealed
portion 230 preferably ranges from 1 mm to 8 mm. When the length of the non—sealed portion
230 is less than or equal to 1 m, an effect of reducing crinkling that causes poor outer
appearance is reduced. When the length is greater than or equal to 8 mm, material cost and
production efficiency Of the packaging container 200 become worse.
illustrates a laminated structure of the side wall 17. As shown in , the side wall 17 includes a polyethylene layer 231, a tion film 232, a polyethylene
terephthalate layer 233, paper 234, and a polyethylene layer 235 which are d in order,
respectively, from the inner side toward the outer side of the ing container 200. The side
wall 17 is formed by resin layers, film, and paper as described above. Therefore, the side wall
17 has rigidity and is deformable in the thickness direction or the like to some degree.
illustrates a laminated structure of the bottom portion 18. As shown in
, the bottom portion 18 includes a polyethylene layer 221, a deposition film 222, a gas-
sealing function resin layer 223, a polyethylene layer 224, paper 225, and a polyethylene layer
226 which are layered in order, respectively, from the inner side toward the outer side of the
packaging container 200. The gas—sealing function resin layer is, for example, a resin layer
formed by an ethylene-Vinylalcohol copolymer. The bottom portion 18 is formed by the resin
layers, film, and paper as described above. Therefore, the bottom portion 18 has rigidity, and is
deformable in the ess direction or the like to some degree.
In the examples shown in (b) of , and (b) and (c) of , when the
bottom portion 18 is caused to project, stress generated near the outer edge of the bottom portion
18 is d by the ruled lines 1201 being compressed to reduce their widths, and the stress is
dispersed over the entirety of the bottom portion 18. Further, when the ruled lines 1201 are
provided, for example, crinkling occurs along the ruled lines 1201, whereby the es are
absorbed and become undistinguished. Thus, since generation of es in the bottom portion
18 is reduced, the design of the packaging ner 200 is ted from being degraded and
the bottom portion 18 can be caused to sufiiciently t. On the other hand, when the ruled
lines 1201 are not provided, since stress is concentrated on a n near the outer edge of the
bottom portion, crinkles 1001 are generated as in a bottom portion 1000 shown in ,
whereby the design is degraded, and projection becomes insufficient. In order to more
assuredly reduce tion of crinkles, the non-sealed portion 230 may be provided as shown in
(c) of . Further, in the bottom portion 18 shown in , the circular lines 1202 as
well as the ruled lines 1201 enable reduction of the , and further enables absorption of
Further, even in an environment in which air pressure outside the packaging
container 200 is higher than air pressure thereinside, since the rigidity of the bottom portion 18 is
lower than the rigidity of the side wall 17, projection of the bottom portion 18 is d or the
bottom portion 18 is further recessed toward the inner side of the packaging container 200,
y absorbing difference in air pressure. On the other hand, the side wall 17 having a
distinguishable outer appearance is not deformed. Therefore, the design of the packaging
container 200 is not degraded. For example, the packaging container 200 was filled with
powdery substances of instant coffee at 30°C, and the opening was fter sealed, and the
packaging container 200 was left as it was in an environment in which the temperature was 0°C.
Namely, the packaging container 200 containing the contents was left as it was in an
environment in which air pressure outside the packaging container 200 was higher than air
pressure thereinside. In this case, projection of the bottom portion 18 was reduced, and the side
wall 17 having a distinguishable outer appearance was not deformed. Namely, the design of the
packaging container 200 was not degraded as a whole.
Thus, in the examples shown in (b) of and (b) and (c) of , in a case
where air pressure inside the packaging ner 200 is lower than air pressure thereoutside, the
difference in air pressure is absorbed. ore, the bottom n 18 is caused to project
outward of the packaging container in advance by, for example, supplying air. However, in a
case where, as shown in (a) of and (a) of , the bottom n 18 is not caused to
project in advance, when, for example, packaging containers in which contents are packaged in a
place where the altitude is low are circulated and placed in a place where the altitude is high, and
air pressure inside the packaging container becomes higher than air pressure thereoutside, the
bottom portion 18 projects outward of the ing container without generating crinkles to
absorb difference in air pressure, and projection of the side wall 17 is prevented. Therefore,
difference in air pressure can be ed without ing the design of the packaging
container.
Examples of the present embodiment will be bed below. In a case where
the bottom portion 18 of the container body 220 having no ruled lines and the bottom portions 18
of the container bodies 220 having the ruled lines shown in to were prepared,
when air pressure inside the packaging containers 200 became lower than air pressure
thereoutside, and the bottom portions were recessed, whether or not crinkles were ted in
portions near the outer edges of the bottom portions, was determined. The ination
results are as indicated below in a column of “crinkle that degraded outer ance” in Table 2.
In the column, “+” represents a state where no crinkles were generated, whereas “-” represents a
state where crinkles were generated. In Table 2, a distance of projection of the center portion of
the bottom portion 18 relative to the outer edge thereof is indicated as “depth of projection”.
Further, projection of the bottom portion 18 was formed by supplying air at 1 MPa for 0.2
seconds.
[Table 2]
Whether or not ruled lines Crinkle that degraded outer
Depth of projection (mm)
were provided appearance
No ruled lines were provided
(comparative example)
Ruled lines were provided
( 24 ruled lines each 4.0
having length of 12 mm)
Ruled lines were provided
((a) of 12 ruled lines 5.0
each having length of 22 mm)
Ruled lines were provided
((b) of 12 ruled lines 5.5
each having length of 30 mm)
Ruled lines were provided
(FIG 38 8 ruled lines each
having length of 12 mm + 8
ruled lines each having length
of 22 mm)
Ruled lines were ed
( 12 ruled lines each
having length of 22 mm +
circular lines)
As indicated in Table 2, in the bottom portion having no ruled lines, crinkles were
generated near the outer edge of the bottom portion. On the other hand, in the bottom portions
having the ruled lines shown in to FIG 39, no crinkles were ted near the outer
edges of the bottom portions. Thus, it was confirmed that, when the ruled lines were provided
on the outer surface portion of the bottom portion 18, even when air pressure inside the
packaging container 200 became lower than air re thereoutside, and the bottom portion 18
was recessed, crinkles that degraded the design were not generated near the outer edge of the
bottom portion 18.
Further, the scopes of the present invention, as indicated below, based on the
present embodiment can be considered.
1. A packaging ner in which the length of each ruled line is greater than or
equal to 5 mm and less than 100 mm.
2. A packaging container in which the number of the ruled lines is greater than
or equal to 6 and less than 30.
3. A packaging container in which the bottom portion is formed by a material in
which a polyethylene layer, a tion film, a gas—sealing on resin layer, a polyethylene
layer, paper, and a polyethylene layer are layered in order, respectively, from the inner side
toward the outer side of the packaging container.
4. A packaging container in which the side surface portion is formed by a
material in which a polyethylene layer, a deposition film, a polyethylene terephthalate layer,
the inner side toward the
paper, and a polyethylene layer are layered in order, respectively, from
outer side of the packaging container.
enth embodiment)
A sixteenth embodiment of the present invention will be described below. (a) of
is a plan View of a sticker label 51 according to the present embodiment. Further, (b) of
is a schematic cross—sectional view illustrating a laminated structure of the sticker label
51. The sticker label 51 includes a plurality of recesses 52 formed by curved lines in a planer
shape, at a plurality of portions in the circumferential edge portion. A packaging ner 300
according to the present embodiment is obtained by the sticker label 51 being adhered to a
surface of the g lid, which forms an outer side of the packaging container, in each of the
packaging containers 100 and 200.
In an example shown in , the planar shape of the sticker label 51 is such
that the ferential edge of a circular member having the diameter of 68 mm is cut by 18
circles each having the radius of 1.5 mm at regular intervals, to form the recesses 52. The
recesses 52 are each recessed by 1.5 mm from the circumferential edge of the circular member
toward the center of the circular .
As shown in (b) of , the r label 51 is formed by using synthetic paper
as a base material. The sticker label 51 has, for example, a layer on which printing with ink is
performed, and an OP (Over Print) varnish layer such that, on the synthetic paper, the OP varnish
layer is layered over the layer on which printing with ink is performed. Further, below the
synthetic paper, an adhesive layer is . The adhesive layer is protected by release paper
during storage.
FIG 45 is a ctive view of the packaging container 300 in an exemplary case
where the r label 51 is adhered to the packaging container 100 according to the sixth
embodiment. is a vertical sectional view of the packaging container 300 taken
along a line G-G’ in .
In the t embodiment, the sealing lid 260 is pressed d by the end
portion, on the narrow opening side, of the funnel component 701 , and projection having a
height of, for example, 1 mm is formed concentrically with the sealing lid 260. The diameter of
the sealing lid 260 is 85 mm, and the center of the sealing lid 260 and the center of the sticker
label 51 overlap each other, and the sticker label 51 is adhered so as to cover the projection.
The sticker label 51 has such a shape as to extend downward from its center
portion toward its circumferential edge portion along the sealing lid 260. In this case, a portion,
outward of the tion, of the sticker label 51 is ed, and the Widths of the recesses 52 in
the circumferential direction of the sticker label 51, are reduced. Thus, the circumferential edge
portion of the sticker label 51 is not folded and gathered, thereby reducing generation of crinkles.
Further, repelling force against squeezing is reduced, and a state where the circumferential edge
n of the sticker label 51 is lifted without extending along the sealing lid 260 is less likely to
occur. Since the recesses 52 are formed so as to be arc-shaped, stress due to ing is not
concentrated on specific potions of the recesses 52, as compared to the triangular recesses or the
like, whereby generation of crinkles at the recesses 52 can be further reduced.
As described above, even when the sticker label 51 is adhered to a non-flat
surface including projections, generation of crinkles or lifting is reduced, whereby adhesion to
the sealing lid 260 can be stably performed. Thus, information indicating function and design
representing function of the r label 51 and protecting function for the sealing lid 260 can be
ed. The sticker label 51 is adhered to indicate information or represent design.
Therefore, even for a small amount of production lots, ation or design unique to the lots
can be easily indicated by individual printing on the sticker labels. Further, since the sealing lid
260 is protected by the sticker label 51, strength of the sealing lid 260 can be d, thereby
enabling reduction in cost. Furthermore, for the same reason as described above, even when
the sticker label 51 is adhered to a non—flat surface including recesses, generation of crinkles or
lifting can be similarly d.
The r label 51 can be adhered to the sealing lid 260 by using a typical
sticker labeler. Since the recesses 52 are not formed into a straight line shape but are formed
into an arc shape, the sticker label 51 is less likely to be caught by the sticker labeler as
compared to a case where the recesses 52 are formed into rectangular shapes or the like.
Therefore, failure in adhesion is less likely to occur.
The size and the shape of the sticker label 51 are not d to those bed
above. When the diameter of the sealing lid 260 is greater than or equal to 50 mm and not
greater than 100 mm, the diameter of the sticker label 51 is preferably greater than or equal to 40
mm and not greater than 100 m, such that the size of the sticker label 51 is not greater than the
size of the sealing lid 260.
The shape and the number of the recesses 52 of the sticker label 51 are not limited
to those described above. The shape and the number f can be selected as appropriate
depending on, for example, a degree of projection or recess of the sealing lid 260, the shape of
the sealing lid 260, and the size of the sticker label 51. For example, when the g lid 260
includes a recess having a depth that is greater than or equal to 1 mm and not greater than 5 mm,
or a projection having a height that is greater than or equal to 1 mm and not greater than 5 mm,
the recesses 52 are ably formed into arc shapes having an equal radius that is greater than
or equal to 1 mm and not greater than 5mm, in the case of the sticker label 51 being a ar
member having a er that is greater than or equal to 40 mm and not greater than 100 mm.
Further, from the Viewpoint of the number of the recesses 52, the number of the recesses 52 is
preferably r than or equal to 8 and not greater than 24. From the viewpoint of als
for positioning, the recesses 52 are ably spaced from each other along the circumferential
edge of the sticker label 51 at regular intervals such that the recesses 52 are spaced from each
other by a distance that is greater than or equal to 5 mm and not greater than 10 mm. When the
radius of each recess 52 or the number of the recesses 52 is reduced so as to be less than that
described above, or the intervals for positioning is increased so as to be greater than those
described above, the effect is less likely to be obtained. When the radius of each recess 52 or
the number of the recesses 52 is increased so as to be greater than that described above, or the
intervals for positioning are reduced so as to be less than those described above, the area of the
sticker label 51 is reduced, and an indication region by printing is reduced. Further, the
recessed width of each recess 52 from the circumferential edge of the circular member toward
the center of the circular member is preferably equal to about the radius of the arc of each recess
52. Thus, the width of each recess 52 along the circumferential direction of the circular
member can be increased, and the width squeezed when the sticker label 51 is adhered can be
increased. The recesses 52 of the sticker label 51 may be formed into a curved-line shape, other
than an arc shape, by which stress is less likely to be concentrated and the recess is less likely to
be caught by a sticker labeler.
The sticker label 51 is ably formed by using, as a base material, synthetic
paper the size of which is less than or equal to 100 um, so as to extend well along the projection
or recess of the sealing lid 260. For example, YUPO (registered trademark) synthetic paper,
manufactured by YUPO ATION, having the thickness of 80 um can be used, and, for
example, a high-adhesion type adhesive PATl can be used as the adhesive layer. The synthetic
base
paper is more rigid and stretchable than paper or resin films, and is preferably used as a
material of the sticker label 51 to be adhered to a surface including projection or recess.
The packaging container to which the r label 51 is to be adhered is not
limited to the packaging ner 300 described above. The sticker label 51 may be adhered to
other packaging containers or objects other than packaging containers when the sticker label 51
can be adhered by an adhesive of the sticker label 51. Further, the sticker label 51 can be
d to flat surfaces.
Further, the scopes of the present invention, as indicated below, based on the
present ment can be considered.
1. A packaging container in which a planar shape of the sticker label is such that
recesses are formed into arc shapes having an equal radius that is greater than or equal to 1 mm
and not greater than 5 mm, and the recesses are formed in a circumferential edge of a ar
member having a diameter that is greater than or equal to 40 mm and not greater than 100 m
such that the recesses are spaced from each other at regular intervals by a distance that is greater
than or equal to 5 mm and not greater than 10 mm.
2. A ing container in which a planar shape of the sticker label is such that
recesses are formed into arc shapes having an equal radius that is greater than or equal to 1 mm
and not greater than 5 mm, and the es are formed in a ferential edge of a circular
member having a diameter that is greater than or equal to 40 mm and not greater than 100 mm,
and the number of the recesses is greater than or equal to 8 and not greater than 24.
The embodiments of the present invention have been described above.
However, in each of the embodiments, modification, replacements, ons, and omissions of
the components can be made as appropriate. In addition, components bed in each
embodiment can be combined to provide a new embodiment.
INDUSTRIAL APPLICABILITY
The present invention is, for example, useful for packaging containers used for
transferring fluid substances such as powdery, granular, and liquid substances from one case to
another case, and for funnel components for use in the packaging containers.
DESCRIPTION OF THE REFERENCE CHARACTERS
12 flange portion
17 side wall
18 bottom n
plate member
2 1 circumferential portion
22 perforation line
24 contact portion
on portion
1 sticker label
52 recess
100 packaging container
1 01 funnel component
102 funnel portion
103 discharge portion
104 side wall portion
105 opening
106 opening portion
107 ruled line
120 container body
133 funnel inner diameter
150 contents
160 sealing lid
160B sealing lid
161 upper film
162 lower film
163 adhesion region
164 tab
165 cut
166 circumferential edge portion
167 circumferential edge portion
168 region
169 adhesion region
170 recess
171 upper-side film member
172 lower-side film member
191 increased width portion
192 air slit
200 packaging container
203 intermediate product
206 folded portion
220 ner body
221 polyethylene layer
222 tion film
223 gas-sealing function resin layer
224 hylene layer
225 paper
226 polyethylene layer
230 non—sealed portion
23 1 polyethylene layer
232 deposition film
233 polyethylene terephthalate layer
234 paper
23 5 polyethylene layer
260 sealing lid
300 packaging container
301 funnel component
360 sealing lid
406 folded portion
460 sealing lid
501 funnel component
502 funnel portion
503 discharge portion
504 side wall portion
506 opening portion
508 groove
512 first d portion
522 second d n
560 sealing lid
606 folded portion
660 sealing lid
701 funnel component
704 side wall portion
707 ruled line
710 tank
71 1 opening
7 12 rubber member
71 3 opening member
760 sealing lid
860 sealing lid
901 sticker label
91 0 packaging container
920 container body
960 sealing lid
1000 bottom n
1001 crinkle
1012 flangeporfion
1060 sealing lid
1120 conunnerbody
1160 sealing lid
1161 upperfflni
1162 lower film
1163 adhesion region
1164 tab
1165 half out
1169 separation layer
1201 mled line
1202 line
1960 sealing lid
Claims (25)
- [Claim 1] A packaging container, comprising: a cylindrical container body having an open end, a bottom portion and a side wall; a funnel component; and a sealing lid, that seals the open end of the container body, and is cut by an external pressing force, wherein the funnel ent is fitted into the cylindrical container body such that a narrow opening side portion is directed towards an open end side of the container body, the funnel component comprising: a funnel portion having a diameter that is increased from the narrow opening side toward a wide opening side; a tubular discharge portion that connects with an end portion on the narrow opening side; and a cylindrical side wall n that surrounds an opening portion, on the wide g side, of the fiinnel portion, connects with the funnel portion, and is fitted into the container body, wherein the funnel portion, the discharge portion, and the side wall portion are integrally formed by using a sheet member including paper and a sealant layer, and a folded portion formed by the sheet member being folded back and welded over an entire circumference is provided at an opening portion of the discharge portion.
- [Claim 2] A packaging container ing to claim 1, wherein the funnel portion includes a first tapered portion on the wide opening side, and a second d portion that is closer to the narrow g side than the first tapered portion is, a taper angle of the second tapered portion is greater than a taper angle of the first tapered portion.
- [Claim 3] A packaging container according to claim 1 or claim 2, wherein the folded portion of the sheet member has a corrugated edge.
- [Claim 4] A packaging ner according to any one of claims 1 to 3, wherein an g portion, on the narrow opening side, of the funnel component projects from a plane of the container body including the open end of the container body, and a projecting distance is greater than 0 mm and less than or equal to 2 mm.
- [Claim 5] A packaging container according to any one of claims 1 to 4, wherein the g lid es perforation lines.
- [Claim 6] A packaging container according to claim 5, n adhesion portions are formed in regions each of which is between the perforation lines, and is not on the perforation lines formed on the sealing lid, and, at the adhesion portions, the opening portion, on the narrow opening side, of the filnnel portion is partially adhered to the sealing lid.
- [Claim 7] A packaging container according to claim 5 or claim 6, wherein the sealing lid includes: a lower film that has a circumferential edge portion which is sealed to an opening portion of the container body to seal the container body, that has the perforation lines which are provided in a center portion other than the circumferential edge n so as to radially extend, and that is to be cut by being externally pressed; and an upper film that is adhered to the lower film over the entire circumference of the circumferential edge portion of the lower film and in at least one adhesion region that is partially formed in a region which does not include the perforation lines of the center portion, such that the upper film is separable from the lower film.
- [Claim 8] A packaging ner according to claim 7, wherein the adhesion region for the sealing lid includes a plurality of circular regions that are point—symmetric with t to a center meeting n of the perforation lines.
- [Claim 9] A packaging container according to claim 5 or claim 6, wherein the sealing lid includes a lower film that has a circumferential edge portion which is sealed to an opening portion of the container body to seal the ner body, that has the perforation lines which are provided in a center portion other than the circumferential edge portion so as to ly extend, and that is to be cut by being ally pressed; and an upper film that is adhered to the lower film over the entire circumference of the circumferential edge portion of the lower film and in at least one adhesion region that is formed in at least a portion of a region which includes the perforation lines of the center portion, such that the upper film is separable from the lower film.
- [Claim 10] A packaging container according to any one of claims 7 to 9, wherein the on region for the sealing lid includes an annular region that surrounds the ation lines.
- [Claim 11] A packaging container according to claim 10, wherein the annular region includes an increased width portion in which a width is partially greater than another portion, and the upper film has an air slit that passes through an inner circumferential edge portion of the increased width portion.
- [Claim 12] A packaging ner according to claim 10 or claim 11, wherein the adhesion region for the sealing lid further includes a circular region that has, as a center thereof, the center meeting portion of the ation lines, and a plurality of circular regions that are on the perforation lines inside an inner diameter of the funnel component and that are point-symmetric with respect to the center meeting portion of the perforation lines.
- [Claim 13] A packaging ner according to claim 10 or claim 11, wherein the adhesion region for the sealing lid further includes a circular region that has, as a center thereof, the center meeting portion of the perforation lines, and one region formed on each perforation line inside an inner diameter of the funnel component and one region formed on each perforation line outside the inner diameter of the funnel component, such that the regions formed on each ation line inside and e the inner diameter of the funnel component are point—symmetric with respect to the center meeting portion of the perforation lines.
- [Claim 14] A packaging container according to claim 10 or claim 11, wherein the adhesion region for the sealing lid further includes a circular region that has, as a center thereof, the center meeting portion of the perforation lines, and two regions formed on each ation line inside an inner diameter of the funnel component and one region formed on each perforation line outside the inner diameter of the funnel component, such that the regions formed on each perforation line inside and outside the inner diameter of the funnel component are point- ric with respect to the center g portion of the perforation lines.
- [Claim 15] A packaging container according to any one of claims 7 to 14, wherein the sealing lid further includes a tab that extends from a portion of the circumferential edge portion, and the upper film and the lower film are adhered to each other in a part a region of the tab including a tip thereof, and the lower film is cut across the tab in a region other than the part of the region.
- [Claim 16] A packaging ner according to claim 15, wherein the tab is welded to the side wall of the container body.
- [Claim 17] A packaging container according to any one of claims 7 to 16, wherein the upper film includes a ted structure having a barrier film and an easy peel member, and the lower film includes a laminated structure having a polyethylene thalate layer and a polyethylene layer.
- [Claim 18] A packaging container according to claim 17, wherein the sealing lid is pressed along an outer edge of the opening n of the container body and welded to the opening portion.
- [Claim 19] A ing container according to claim 18, wherein the sealing lid includes a region in which the upper film and the lower film are not welded to each other, in a portion outward of a region where the sealing lid and the opening portion of the container body are welded to each other.
- [Claim 20] A packaging container according to any one of claims 1 to 19, wherein a rigidity of the side wall is higher than a rigidity of the bottom n, and a plurality of ruled lines are provided on an outer surface portion of the bottom portion so as to radially extend as viewed from a center portion of the bottom portion.
- [Claim 21] A packaging container according to claim 20, wherein the bottom portion projects outward of the packaging container.
- [Claim 22] A packaging container ing to claim 20 or claim 21, wherein an outer edge portion of the bottom portion and a lower end portion of the side wall overlap each other in a state where the lower end portion of the side wall is folded back inward to ch the outer edge portion of the bottom portion, and includes a non-sealed portion that is formed such that a portion, of an overlapping region, which is higher than a predetermined height is not sealed in a state where a portion, of the overlapping region, ranging from a folding—back position to the predetermined height is
- [Claim 23] A packaging container according to any one of claims 20 to 22, wherein the ruled lines are y spaced from each other.
- [Claim 24] A packaging container according to any one of claims 1 to 23, further sing a sticker label having, in a part of a circumferential edge portion, a plurality of recesses each formed in a curved line in a planer shape, and the sticker label is adhered to a surface of the sealing lid, which forms an outer side of the packaging container.
- [Claim 25] A packaging container substantially as herein bed or exemplified, with reference to the drawings.
Applications Claiming Priority (17)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011197665A JP6031740B2 (en) | 2011-09-09 | 2011-09-09 | Funnel parts, packaging containers using funnel parts |
JP2011-197667 | 2011-09-09 | ||
JP2011-197665 | 2011-09-09 | ||
JP2011-197666 | 2011-09-09 | ||
JP2011197666 | 2011-09-09 | ||
JP2011197667 | 2011-09-09 | ||
JP2012-019134 | 2012-01-31 | ||
JP2012019135A JP5906771B2 (en) | 2011-09-09 | 2012-01-31 | Packaging container |
JP2012-019135 | 2012-01-31 | ||
JP2012019134A JP5962037B2 (en) | 2011-09-09 | 2012-01-31 | Packaging container |
JP2012-021063 | 2012-02-02 | ||
JP2012021063A JP6031773B2 (en) | 2012-02-02 | 2012-02-02 | Packaging container and manufacturing method thereof |
JP2012092340A JP6031808B2 (en) | 2012-04-13 | 2012-04-13 | Packaging container |
JP2012-092340 | 2012-04-13 | ||
JP2012173274A JP5660337B2 (en) | 2012-08-03 | 2012-08-03 | Stickers and packaging containers |
JP2012-173274 | 2012-08-03 | ||
PCT/JP2012/005675 WO2013035339A1 (en) | 2011-09-09 | 2012-09-07 | Funnel part and packaging container using funnel part |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ622498A NZ622498A (en) | 2015-11-27 |
NZ622498B2 true NZ622498B2 (en) | 2016-03-01 |
Family
ID=
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