U.S. patent application number 13/509178 was filed with the patent office on 2012-09-13 for method of manufacturing packaging container, spout closure, and packaging container.
This patent application is currently assigned to TETRA LAVAL HOLDINGS & FINANCE S.A.. Invention is credited to Masamichi Kaneko.
Application Number | 20120228339 13/509178 |
Document ID | / |
Family ID | 44066660 |
Filed Date | 2012-09-13 |
United States Patent
Application |
20120228339 |
Kind Code |
A1 |
Kaneko; Masamichi |
September 13, 2012 |
METHOD OF MANUFACTURING PACKAGING CONTAINER, SPOUT CLOSURE, AND
PACKAGING CONTAINER
Abstract
Disclosed are a spout stopper with easy open and close operation
when being opened or closed, a packaging container, and a packaging
container manufacturing method. The spout stopper comprises a spout
further comprising a spout tube and base portion, formed by
injection molding and disposed upon a spout hole of a packaging
container that is formed from a webbing laminate packaging
material; a sealed partition of the packaging container that is
capable of being ruptured; and a cap that covers the spout. The cap
is inserted upon the spout tube in a detachable manner, and
comprises a bottom partition, which is partially fused upon the
sealed partition such that the sealed partition is capable of being
ruptured by the cap, and a pull ring, which is for pulling up on
the cap.
Inventors: |
Kaneko; Masamichi;
(Chiyoda-ku, JP) |
Assignee: |
TETRA LAVAL HOLDINGS & FINANCE
S.A.
Pully
CH
|
Family ID: |
44066660 |
Appl. No.: |
13/509178 |
Filed: |
November 30, 2010 |
PCT Filed: |
November 30, 2010 |
PCT NO: |
PCT/JP2010/071320 |
371 Date: |
May 10, 2012 |
Current U.S.
Class: |
222/566 ;
53/452 |
Current CPC
Class: |
B65D 5/749 20130101;
B31B 50/84 20170801; B65B 3/02 20130101; B29C 66/71 20130101; B65B
7/2878 20130101; B29C 45/14336 20130101; B29C 66/83413 20130101;
B29C 65/3656 20130101; B29C 65/36 20130101; B29C 66/71 20130101;
B29C 66/71 20130101; B29C 66/72328 20130101; B29C 2045/0063
20130101; B29C 45/006 20130101; B29C 66/71 20130101; B29C 66/131
20130101; B29C 66/71 20130101; B29L 2031/712 20130101; B29C 66/71
20130101; B29C 45/0081 20130101; B29C 45/14377 20130101; B29L
2031/7166 20130101; B65B 9/20 20130101; B29C 66/72341 20130101;
B29C 66/4322 20130101; B29K 2101/12 20130101; B29C 65/3608
20130101; B29C 66/49 20130101; B29K 2077/00 20130101; B29C 66/72321
20130101; B29C 65/368 20130101; B29C 65/56 20130101; B65B 61/186
20130101; B29C 66/12441 20130101; B29C 65/3644 20130101; B29K
2995/0005 20130101; B29L 2031/565 20130101; B65B 3/045 20130101;
B29C 66/71 20130101; B29K 2067/003 20130101; B29K 2023/12 20130101;
B29K 2023/06 20130101; B29K 2083/00 20130101; B29K 2023/086
20130101; B29K 2023/00 20130101; B29C 66/71 20130101; B29C 66/545
20130101 |
Class at
Publication: |
222/566 ;
53/452 |
International
Class: |
B65D 35/38 20060101
B65D035/38; B65B 3/02 20060101 B65B003/02 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 30, 2009 |
JP |
2009-272989 |
Claims
1. A method of manufacturing a packaging container, which comprises
preparing a web-like laminated packaging material having the
predetermined crease lines, punching the web-like laminated
packaging material for every predetermined interval to form pouring
holes, arranging a first mold having the predetermined cavity to
cover the inner side of the pouring hole corresponding to the inner
side of the container, arranging a second mold having the
predetermined cavity to cover the outside of the pouring hole
corresponding to the outside of the container, injecting melt resin
from a cavity gate into the cavities to form a spout tube and a
spout of a spout closure and a sealed partition, forming the
web-like laminated packaging material into tube shape to form an
overlap of both edges of the packaging material, longitudinal
sealing to the longitudinal direction at the overlap to form a
longitudinal seal zone, filling up with contents in the tube shaped
packaging material, pressing the packaging material to the
transverse direction for each predetermined interval, sealing with
the transversal sealing to form a transversal seal zone, cutting
the packaging material at the transversal seal zone to obtain a
pillow-shaped preformed body, folding up along crease lines to
obtain the packaging container, and arranging and sealing a cap to
cover the spout, characterized by that the spout closure has the
spout having the spout tube provided in the pouring hole of the
packaging container and a base integrated with the spout tube and
joined to the container panel abound the pouring hole, and the
breakable sealed partition provided with the bottom of the spout
tube to seal the spout, the cap covering the spout is detachably
inserted in the spout tube, and the cap has a bottom partition
adhering to and sealed with the top face of the sealed partition on
the undersurface of the cap in order to break the sealed partition,
and a pull ring pulling up the inserted cap.
2. A method of manufacturing the packaging container according to
claim 1, wherein the bottom partition of the cap has an air hole
which penetrates through top and bottom of the partition, in the
seal step of the cap, after inserting the cap in the spout tube,
via the air hole, a space between the bottom partition and the
sealed partition is evacuated, and the bottom partition is
heat-sealed to the sealed partition.
3. A method of manufacturing the packaging container according to
claim 1, wherein a conductive layer is provided in a seal surface
of the bottom partition and/or the sealed partition, in the seal
step of the cap, after inserting the cap in the spout tube, the
bottom partition adheres to the sealed partition and is heat-sealed
to the sealed partition with induction heating.
4. A method of manufacturing the packaging container according to
claim 1, wherein a barrier film is arranged on an inwall of the
cavity of the first mold, and a barrier layer is formed in at least
the inner surface of the sealed partition.
5. A spout closure comprising a spout having a spout tube provided
in a pouring hole of a packaging container and a base integrated
with the spout tube and joined to a container panel abound the
pouring hole, a breakable sealed partition provided with the bottom
of the spout tube to seal the spout, a cap covering the spout,
characterized by that the cap is detachably inserted in the spout
tube, the cap has a bottom partition adheres to the top face of the
sealed partition and is sealed with the top face of the sealed
partition on the undersurface of the cap in order to break the
sealed partition, and a pull ring pulling up the inserted cap.
6. A spout closure according to claim 5, wherein the cap consists
of the bottom partition, a side wall which fits into an inner
surface of the spout tube, a top panel which covers an upper end of
the spout tube, and an outer wall which covers an outside surface
of the spout tube, the outer wall is provided at least at the side
and the other side where the pull ring pulls up the cap.
7. A spout closure according to claim 5, wherein the outer wall
covers the whole circumferences of the outside surface of the spout
tube, at the side where the pull ring pulls up the cap, is
breakably provided at the unsealing of the pulling.
8. The packaging container, obtained by forming the web-like
laminated packaging material having crease lines into tube shape,
forming an overlap of both edges of the packaging material,
longitudinal sealing to the longitudinal direction at the overlap
to form a longitudinal seal zone, filling up with contents in the
tube shaped packaging material, pressing the packaging material to
the transverse direction for each predetermined interval, sealing
with the transversal sealing to form a transversal seal zone,
cutting the packaging material at the transversal seal zone to
obtain a pillow-shaped preformed body, and folding up along crease
lines to obtain the packaging container, characterized by that the
packaging container has a spout closure comprising a spout having a
spout tube provided in a pouring hole of the packaging container
and a base integrated with the spout tube and joined to the
container panel abound the pouring hole, a breakable sealed
partition provided with the bottom of the spout tube to seal the
spout, and a cap covering the spout, the cap is detachably inserted
in the spout tube, and the cap has a bottom partition adhering to
and sealed with the top face of the sealed partition on the
undersurface of the cap in order to break the sealed partition, and
a pull ring pulling up the inserted cap.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a manufacturing method of a
packaging container filled up with beverages, a spout closure, and
the packaging container.
BACKGROUND ART
[0002] In some containers filled up with liquid food, such as
juices and milk, the containers with the final shape are obtained
by forming web-like packaging laminate material with crease lines
set beforehand into the tube shape, longitudinal sealing to the
longitudinal direction of the tube, filling up with the food
product into the tube shaped packaging material, sealing with the
transversal seal of the transverse direction for each predetermined
interval, cutting in the middle of the transversal seal zone to
obtain the pillowy preformed body, and folding up along the crease
lines.
[0003] The packaging container may have one of the various spout
closures.
[0004] The spout closure consists of a spout provided in the
breakably sealed pouring hole of the packaging container, a cap
covering the spout and the unsealing means built in the spout, for
example, a unsealing edge, a pull ring, etc., and a packaging
container for the fluids has the spout closure.
[0005] (See the patent documents 1 and 2)
[0006] As shown in FIG. 4, the example of the packaging container
equips a cap 11 (FIG. 4 (B)) which covers the spout (not shown)
welded on the pouring hole 42 (FIG. 4 (A)) of the top panel 3 of
the container 14.
[0007] Patent document 1: Japanese Utility Model Laid-Open No.
63-86021
[0008] Patent document 2: Japanese Patent Laid-Open No.
08-183555
DISCLOSURE OF THE INVENTION
Problem to be Solved by the Invention
[0009] In the reclosable spout closure of the conventional
packaging container, at the beginning of using, it is necessary to
remove a cap, to open a sealed part, to remove the sealed part, and
to open a pouring hole, and to reseal with the cap after
pouring.
[0010] Consumers may be complicated by repeating the removing of
the unsealing actions after the removing the cap.
[0011] The present invention meets the above-mentioned necessity
and longing. It is an object to provide a spout closure with simple
unsealing actions at the unsealing, a packaging container, and a
method of manufacturing the packaging container.
Means to Solve the Problem
[0012] The method of manufacturing a packaging container of the
present invention, which solves the problem, which comprises
[0013] preparing a web-like laminated packaging material having the
predetermined crease lines,
[0014] punching the web-like laminated packaging material for every
predetermined interval to form a pouring hole,
[0015] arranging a first mold having the predetermined cavity to
cover the inner side of the pouring hole corresponding to the inner
side of the container,
[0016] arranging a second mold having the predetermined cavity to
cover the outside of the pouring hole corresponding to the outside
of the container,
[0017] injecting melt resin from a cavity gate into the cavities to
form a spout tube and a spout of a spout closure, and a sealed
partition,
[0018] forming the web-like laminated packaging material into tube
shape,
[0019] forming an overlap of both edges of the packaging
material,
[0020] longitudinal sealing to the longitudinal direction at the
overlap to form a longitudinal seal zone,
[0021] filling up with contents in the tube shaped packaging
material,
[0022] pressing the packaging material to the transverse direction
for each predetermined interval,
[0023] sealing with the transversal sealing to form a transversal
seal zone,
[0024] cutting the packaging material at the transversal seal zone
to obtain a pillow-shaped preformed body,
[0025] folding up along crease lines to obtain a packaging
container, and
[0026] arranging and sealing a cap to cover the spout,
is characterized by that
[0027] the spout closure has the spout having the spout tube
provided in the pouring hole of the packaging container and a base
integrated with the spout tube and joined to the container panel
abound the pouring hole, and the breakable sealed partition
provided with the bottom of the spout tube to seal the spout,
[0028] the cap covering the spout is detachably inserted in the
spout tube, and the cap has a bottom partition adhering to and
sealed with the top face of the sealed partition on the
undersurface of the cap in order to break the sealed partition, and
a pull ring pulling up the inserted cap.
[0029] In the preferable embodiment of this invention, the bottom
partition of the cap has an air hole which penetrates through top
and bottom of the partition, in the seal step of the cap, after
inserting the cap in the spout tube, via the air hole, a space
between the bottom partition and the sealed partition is evacuated,
and the bottom partition is heat-sealed to the sealed
partition.
[0030] In the preferable embodiment of this invention, a conductive
layer is provided in a seal surface of the bottom partition and/or
the sealed partition, in the seal step of the cap, after inserting
the cap in the spout tube, the bottom partition adheres to the
sealed partition and is heat-sealed to the sealed partition with
induction heating.
[0031] In the preferable embodiment of this invention, a barrier
film is arranged on an inwall of the cavity of the first mold, and
a barrier layer is formed in at least the inner surface of the
sealed partition.
[0032] The spout closure of this invention comprising the spout
having the spout tube provided in the pouring hole of the packaging
container and a base integrated with the spout tube and joined to
the container panel abound the pouring hole, the breakable sealed
partition provided with the bottom of the spout tube to seal the
spout, the cap covering the spout, is characterized by that the cap
is detachably inserted in the spout tube, the cap has a bottom
partition adheres to the top face of the sealed partition and is
sealed with the top face of the sealed partition on the
undersurface of the cap in order to break the sealed partition, and
a pull ring pulling up the inserted cap.
[0033] In the preferable embodiment of this invention, the cap
consists of the bottom partition, a side wall which fits into an
inner surface of the spout tube, a top panel which covers an upper
end of the spout tube, and an outer wall which covers an outside
surface of the spout tube, the outer wall is provided at least at
the side and the other side where the pull ring pulls up the
cap.
[0034] In the preferable embodiment of this invention, the outer
wall covers the whole circumferences of the outside surface of the
spout tube, at the side where the pull ring pulls up the cap, is
breakably provided at the unsealing of the pulling.
[0035] The packaging container of this invention, obtained by
forming the web-like laminated packaging material having crease
lines into tube shape, forming an overlap of both edges of the
packaging material, longitudinal sealing to the longitudinal
direction at the overlap to form a longitudinal seal zone, filling
up with contents in the tube shaped packaging material, pressing
the packaging material to the transverse direction for each
predetermined interval, sealing with the transversal sealing to
form a transversal seal zone, cutting the packaging material at the
transversal seal zone to obtain a pillow-shaped preformed body, and
folding up along crease lines to obtain the packaging
container,
is characterized by that
[0036] the packaging container has a spout closure comprising a
spout having a spout tube provided in a pouring hole of the
packaging container and a base integrated with the spout tube and
joined to the container panel abound the pouring hole, a breakable
sealed partition provided with the bottom of the spout tube to seal
the spout, and a cap covering the spout,
[0037] the cap is detachably inserted in the spout tube, and the
cap has a bottom partition adhering to and sealed with the top face
of the sealed partition on the undersurface of the cap in order to
break the sealed partition, and a pull ring pulling up the inserted
cap.
Effect of the Invention
[0038] According to the above present invention, the following
advantageous function are performs and the remarkable effect is
obtained.
[0039] In the method of manufacturing the packaging container of
the present invention, the web-like laminated packaging material
which has the predetermined crease lines is prepared, the web-like
laminated packaging material is punched for every predetermined
interval, and the pouring holes are formed continuously.
[0040] Because of the web-like, the pouring holes can be formed
continuously efficiently, and simply.
[0041] The first mold that has the predetermined cavity is arranged
so that the pouring hole inner side corresponding to the inner side
of the container may be covered, the second mold that has the
predetermined cavity is arranged so that the outside of the pouring
hole corresponding to the outside of the container may be covered,
and the melting resin is injected from the cavity gate to the
cavities, and the spout tube, spout, and the sealed partition of
the spout closure are formed.
[0042] The first mold and the second mold clip the pouring hole of
the web-like laminated packaging material and the cavities
equivalent to the spout tube, the spout, and the sealed partition
are formed.
[0043] With injecting the melting resin into the cavities and
insert molding the spout closure, the spout closure can be formed
and sealed at one step on the packaging material at high speed.
[0044] The web-like laminated packaging material is formed to tube
shape, the overlap is formed in the edge section of the packaging
material, the overlap is longitudinal sealed to the longitudinal
direction, the longitudinal seal zone is formed, and the tube shape
packaging material is formed.
[0045] Subsequently, the tube is filled up with the liquid food
(content), such as the juice and the milk, the packaging material
is pressed and transversal sealed to the transverse direction for
each predetermined interval, the transversal seal zone is formed,
the tube is cut at the transversal seal zone and the pillow-shaped
preforming body is obtained and folded up along the crease lines,
and the packaging container is obtained.
[0046] The cap is arranged and applied to the obtained packaging
container so that the spout may be covered.
[0047] Since the cap is attached to the spout after forming the
container, and filling the liquid food, the shape, the material,
and the structure of the cap have the advantage with the high
flexibility.
[0048] The spout closure comprises the spout having the spout tube
provided in the pouring hole of the packaging container and a base
integrated with the spout tube and joined to the container panel
abound the pouring hole, and the breakable sealed partition
provided with the bottom of the spout tube to seal the spout.
[0049] The spout tube can be open for free passage with the pouring
hole, and the liquid food (content), such as the juice and the
milk, can be smoothly poured out via the pouring hole.
[0050] By the injection molding, the base joins the container panel
integrally on the outside circumference of the pouring hole, and
the base can air-tightly fix the whole spout closure to the
container safely.
[0051] The sealed partition can seal the spout at unused time in
the bottom of the spout tube, and can be breakable by a weaken
line, a brittle line, or the like at unsealing time.
[0052] The cap covering the spout is detachably inserted in the
spout tube, and the cap comprises a bottom partition adhering to
and sealed with the top face of the sealed partition on the
undersurface of the cap in order to break the sealed partition, and
a pull ring pulling up the inserted cap.
[0053] Since the cap covers the spout and the cap is detachably
inserted in the spout tube, the spout is hygienically protected
also at the distribution process or the shop front.
[0054] Since the cap can be detached and attached freely, the
reclosing capacity is assured.
[0055] The inserting in the inside of the spout tube saves the
space compactly in the container, and makes the volume of the whole
spout closure small and slim.
[0056] The bottom partition of the cap adheres to the top face of
the sealed partition at the undersurface of the bottom partition,
and is sealed breakably to the contacted surfaces. When the bottom
partition and pull ring cooperate and the inserted cap is pulled up
with the pull ring at the time of unsealing, the sealed partition
sealed with the bottom partition of the cap can also be pulled
up.
[0057] In the preferable embodiment of this invention, the bottom
partition of the cap has an air hole which penetrates through top
and bottom of the partition, in the seal step of the cap, after
inserting the cap in the spout tube, via the air hole, a space
between the bottom partition and the sealed partition is evacuated,
and the bottom partition is heat-sealed to the sealed
partition.
[0058] In the seal step of the cap, by inserting the cap in the
spout tube and putting the cap under decompression, the air between
the bottom partition and the sealed partition is evacuated via the
air hole, and the bottom partition adheres to the sealed
partition.
[0059] Both can be easily heat sealed by this adhering
condition.
[0060] In the preferable embodiment of this invention, a conductive
layer is provided in the seal surface of the bottom partition
and/or the sealed partition, in the seal step of the cap, after
inserting the cap in the spout tube, the bottom partition adheres
to the sealed partition and is heat-sealed to the sealed partition
with induction heating.
[0061] In the seal step of the cap, the heating needs to give
heating energy from the cap end.
[0062] By forming the conductive layer in the seal surface, and by
using thermoplastic material of the cap, the cap can be precisely
heat sealed with the induction heating.
[0063] The conductive layer can be formed with the two steps
molding by using the thermoplastic resin (polyethylene etc.)
containing the magnetic substance, or with the insertion molding of
a ring shaped conductive film of polyethylene (PE)/aluminum layer
(Al)/PE on the seal surface.
[0064] In the preferable embodiment of this invention, a barrier
film is arranged on an inwall of the cavity of the first mold, and
a barrier layer is formed in at least the inner surface of the
sealed partition.
[0065] Oxygen barrier property protecting the container content
from the exterior can be given to the container.
[0066] The spout closure of this invention comprises the spout
having the spout tube provided about the pouring hole of the
packaging container and a base integrated with the spout tube and
joined to the container panel abound the pouring hole, the
breakable sealed partition provided with the bottom of the spout
tube to seal the spout, and the cap covering the spout.
[0067] The spout tube can be open for free passage with the pouring
hole, and the liquid food (content), such as the juice, the milk or
the like, can be smoothly poured out via the pouring hole.
[0068] By the injection molding, the base joins the container panel
integrally on the outside circumference of the pouring hole, and
the base can air-tightly fix the whole spout closure to the
container safely.
[0069] The sealed partition can seal the spout at unused time in
the bottom of the spout tube, and can be breakable by a weaken
line, a brittle line, or the like at unsealing time.
[0070] Since the cap covers the spout and the cap is detachably
inserted in the spout tube, the spout is protected hygienically
also at the distribution process or the shop front.
[0071] Since the cap can be detached and attached freely, the
reclosing capacity is assured.
[0072] The inserting in the inside of the spout tube saves the
space compactly in the container, and makes the volume of the whole
spout closure small and slim.
[0073] The bottom partition of the cap adheres to the top face of
the sealed partition at the undersurface of the bottom partition,
and is sealed breakably to the contacted surfaces. When the bottom
partition and pull ring cooperate and the inserted cap is pulled up
with the pull ring at the time of unsealing, the sealed partition
sealed with the bottom partition of the cap can also be pulled
up.
[0074] In the preferable embodiment of this invention, the cap
consists of the bottom partition, a side wall which fits into an
inner surface of the spout tube, a top panel which covers an upper
end of the spout tube, and an outer wall which covers an outside
surface of the spout tube, the outer wall is provided at least at
the side and the other side where the pull ring pulls up the
cap.
[0075] The side wall fits in detachably with the inner surface of
the spout tube, and secures the reclosing characteristic of the
cap. The top panel and the outer wall cover the spout tube, and
secure the hygienic characteristic.
[0076] The outer wall which covers an outside surface of the spout
tub is provided at the side and the other side where the pull ring
pulls up the cap, and when pulling up the cap with the pull ring,
the other side outer wall becomes the fulcrum of the pulling-up
rotary motion, and can secure the controlled movement.
[0077] In the preferable embodiment of this invention, the outer
wall covers the whole circumferences of the outside surface of the
spout tube, at the side where the pull ring pulls up the cap, is
breakably provided at the unsealing of the pulling.
[0078] As mentioned above, the other side outer wall becomes the
fulcrum of the pulling-up rotary motion, and can secure the
controlled movement. On the other hand, in this embodiment, the
outer wall of the side where the cap is pulled up with the pull
ring is breakably provided at the time of pulling-unsealing, and it
has smoothly pulling up of the cap with the pull ring, and a
function as the tamper evidence.
[0079] The packaging container of the present invention is provided
from web-shaped packaging material, and is filled up.
[0080] The spout closure comprises the spout having the spout tube
provided in the pouring hole of the packaging container and a base
integrated with the spout tube and joined to the container panel
abound the pouring hole, the breakable sealed partition provided
with the bottom of the spout tube to seal the spout, and the cap
covering the spout.
[0081] The cap is detachably inserted in the spout tube, and the
cap has a bottom partition adhering to and sealed with the top face
of the sealed partition on the undersurface of the cap in order to
break the sealed partition, and a pull ring pulling up the inserted
cap.
[0082] The spout tube can smoothly pour out the liquid food through
the pouring hole.
[0083] The base joins the container panel integrally, and the base
can air-tightly fix the spout closure to the container safely.
[0084] The sealed partition can seal the spout at unused time, and
can be breakable at unsealing time.
[0085] The cap protects hygienically the spout at the distribution
process or the shop front.
[0086] Since the cap can be detached and attached freely, the
reclosing capacity is assured.
[0087] The inserting in the inside of the spout tube saves the
space compactly in the container, and makes the volume of the whole
spout closure small and slim.
[0088] When the bottom partition and pull ring cooperate and the
inserted cap is pulled up with the pull ring at the time of
unsealing, the sealed partition sealed with the bottom partition of
the cap can also be pulled up.
BRIEF EXPLANATION OF THE DRAWINGS
[0089] [FIG. 1]
[0090] FIG. 1 is a partial sectional view showing manufacturing
steps of an Example of the spout closure according to this
invention.
[0091] [FIG. 2]
[0092] FIG. 2 is a side view of the cap portion of the Example of
the spout closure according to this invention.
[0093] [FIG. 3]
[0094] FIG. 3 is an outline perspective view of an example of the
packaging filling machine manufacturing a packaging container
according to this invention
[0095] [FIG. 4]
[0096] FIG. 4 is perspective views of an example of a packaging
container without a spout closure (A), and a conventional example
of a packaging container (B).
[0097] [FIG. 5]
[0098] FIG. 5 is a top view of the cap portion of the Example of
the spout closure according to this invention.
[0099] [FIG. 6]
[0100] FIG. 6 is a top view of the opened spout portion of the
Example of the spout closure according to this invention.
[0101] [FIG. 7]
[0102] FIG. 7 is the partial sectional view explaining unsealing
action in the Example of the spout closure according to this
invention.
EXPLANATION OF REFERENCES
[0103] 1. Packaging Material
[0104] 5. Spout Tube
[0105] 6. Base
[0106] 8. Brittle Line
[0107] 9. Sealed Partition
[0108] 10. Spout
[0109] 11. Cap
[0110] 12. Liquid Food
[0111] 13. Conduct Layer (Seal Layer)
[0112] 14. Container
[0113] 15. First Mold
[0114] 16. Second Mold
[0115] 17. Gate
[0116] 23. Groove
[0117] 24. Ridge
[0118] 25. Bottom Partition
[0119] 26. Air Hole
[0120] 27. Pull Ring
[0121] 29. Top Panel
[0122] 30. Outer Wall
THE BEST MODE FOR THE INVENTION
[0123] Preferred embodiments of the present invention will
hereinafter be described in detail with reference to the attached
drawings.
[0124] By means of the packaging-filling machine shown in FIG. 3,
the Example of the packaging container is manufactured. In the
example of the machine, the web-like packaging laminating material
1 is loaded in the reel state into the packaging-filling machine.
The packaging laminating material 1 comprises flexible laminate in
which a paper substrate and polyethylene resin on both sides of the
paper are laminated, a barrier layer, such as the aluminum foil, is
formed between the paper substrate and a film, and printings for
the exterior are applied before the forming to the corresponding
surface of the packaging container 14.
[0125] The packaging laminated material 1 is continuously conveyed
by a feeder as a conveying means, through bending rollers, damper
rollers, etc., the web-like packaging laminated material 1 is
punched with a punching device 40 for every predetermined interval,
and pouring holes are formed.
[0126] Then, the spout portion of the spout closure on the pouring
hole is formed by the injection-molding device 41 for forming the
spout portion of the spout closure. The sectional view of the
pouring hole 42 formed in the packaging laminated material 1 is
shown in FIG. 1 (A).
[0127] With reference to FIG. 1 (B) which is the sectional view
showing injection molding of the Example of the spout closure with
an injection molding device 41, the step of injection molding of
the spout of the spout closure of the Example according to this
invention is explained.
[0128] The spout portion of the spout closure is formed, in this
example of the injection-molding device 41 for forming the spout
portion of the spout closure.
[0129] In this device, it has the predetermined cavity so that the
inner side of the pouring hole corresponding to the container inner
side may be covered, the first mold 15 that placed, preferably, the
gas barrier film in inwall is arranged, and the second mold 16 that
has the predetermined cavity is arranged so that the outside of the
pouring hole corresponding to the container outside may be covered.
Melt resin (polyolefin, such as the polyethylene and the
polypropylene etc.) is injected from the cavity gate 17 to the
cavity, the spout tube 5 and the spout 10 of the spout closure are
formed, and the gas barrier film is preferably integrated.
[0130] The sectional view of the followings is shown in FIG. 1 (C):
The spout 10 having the spout tube 5 provided in the pouring hole
42 of the packaging material 1, and the base 6 integrated with the
spout tube 5 to join to the container wall at the periphery area of
the pouring hole; and the sealed partition 9 provided with the
bottom of the spout tube so that the spout 10 might be sealed and
can be broken.
[0131] The brittle line 8 at the periphery of the sealed partition
9 is breakably formed.
[0132] As shown in FIG. 3, the packaging laminated material is fed
to the sealing tape applicator 3, and the sealing tape is applied
along one edge of the packaging laminated material 1 by the sealing
tape applicator.
[0133] When joining the sealing tape to the edge of the web shaped
packaging laminated material 1, the sealing tape is applied to the
web shaped packaging laminated material, the pressure roller is
arranged and pushed on the one side, and the pressure by the
pressure roller is received in another side, and the counter roller
is arranged in the another side so that it may be countered, it may
press down and support the tape.
[0134] When the packaging laminated material is conveyed, the
rotating pressure roller and the counter roller push the overlap
part of the packaging laminated material and the sealing tape, and
the overlap of the longitudinal seal is sealed.
[0135] The packaging laminated material 1 is fed to the
sterilization bath 4, and is sterilized with sterilization liquid,
such as the hydrogen peroxide, in the sterilization bath 4. The
packaging laminated material 1 is fed to the aseptic chamber (not
shown), after feeding to the air knife and being dried with the air
knife. And the packaging laminated material 1 is gradually changed
by the forming rings 7, and is made into tube shape (cylindrical)
shape. The packaging laminated material 1 is sealed to the
longitudinal direction by the longitudinal seal device 20, and the
packaging laminated material 1 is filled up with the fluid food
supplied via filling pipes (not shown).
[0136] When the edge sections of the packaging laminated material
formed into tube shape is pushed and longitudinal sealed with the
sealing tape by the longitudinal seal device 20, the one edge of
the web shaped packaging laminated material is overlapped on
another edge, and the pressure roller is arranged in the one side,
enabling free rotation, and pushes them, the counter roller
receiving the pressure by the pressure roller in another side is
arranged, enabling free rotation, so that it may counter against
the pressure roller, press and support, and the overlap of the
longitudinal seal is sealed.
[0137] The tube shape packaging laminated material is guided with
the roller, and is fed to the transversal seal device (not shown),
and is pushed and sealed in the transversal direction, and the
packaging laminated material transversally sealed is cut with the
knife etc., and the pillow-shaped preforming body 21 is formed.
[0138] The pillow-shaped preforming body 21 is formed into the
final shape by the final folder (not shown), and the packaging
container 14 with fluid food is obtained.
[0139] The appearance perspective view of the example of the
packaging container having no spout closure in the pouring hole 42
is shown in FIG. 4 (A). The perspective view of the conventional
example of the packaging container is shown in FIG. 4 (B).
[0140] In this embodiment, the spout closure (not shown) is formed
in the top panel 3 of the packaging container 14, and the cross
section of the spout 10 of the spout closure covered with the cap
11 is shown in FIG. 1 (D). The liquid food 12 is filled up with, in
this embodiment, into the inside of the container 14.
[0141] In the downstream of the production line of the final
folder, the cap applicator (not shown) is equipped, in the example
shown in FIG. 1.
[0142] The appearance that the cap is arranged and applied to the
obtained packaging filled container so that the spout may be
covered are shown in FIGS. 1 (E) and (F). In this embodiment, the
cap 11 is inserted and applied by the cap applicator from the
upwards (container outside) into the spout tube 5 of the spout 10
on the top panel of the packaging container 14.
[0143] In this embodiment, in the seal step of the cap of having
the conductive layer 13 in the sealing surface of the bottom
partition of the cap 11, after inserting the cap 11 in the spout
tube 5 of the spout 10, the bottom partition is adhered to the
sealed partitions, is heat sealed by induction heating, and the
sealing surface 13 is formed.
[0144] In this embodiment, in the seal step of the cap of having
the air hole 26 in which the bottom partition 25 of the cap 11
penetrates through the upper and lower sides of the partition,
after inserting the cap 11 in the spout tube 5, via the air hole
26, the space of the bottom partition 25 and the sealed partition 9
is evacuated, and they are adhered and heat sealed.
[0145] In the seal step of the cap, by putting the cap 11 under
reduced pressure, the air between the bottom partition and the
sealed partition is evacuated via the air hole 26, and the bottom
partition 25 adheres to the sealed partition 9. The partitions are
heat sealed under the adhesion condition.
[0146] In the preferable embodiment, the barrier film can be
arranged on the inwall of the cavity of the first mold 15, and the
barrier layer can be formed in at least the inner surface of the
sealed partition. The oxygen barrier property which protects the
container content from the outside can be given to the
container.
[0147] The film according to this embodiment may be the film
laminated with possible materials having the gas barrier
characteristic. The material which has the gas barrier
characteristic is the barrier property packaging material which has
the block out characteristic about the gas, such as the oxygen,
aroma, etc., including metallic foil, such as the aluminum, the
ethylene-vinyl alcohol copolymer (EVOH), polyamide, such as the
nylon, (PA), the plastic film that vapor-deposited the silicon
oxide (SiOx) etc., the polyethylene terephthalate (PET), etc.
[0148] The spout closure of the embodiment, as shown in FIG. 1 (F),
comprises the spout 10 having the spout tube 5 provided in the
pouring hole 42 of the packaging container 14 and a base 6
integrated with the spout tube 5 and joined to the container panel
abound the pouring hole, the breakable sealed partition 9 provided
with the bottom of the spout tube to seal the spout 10, and the cap
11 covering the spout 10.
[0149] The spout tube 5 can be open for free passage with the
pouring hole 42, and the liquid food, such as the juice, the milk
or the like, can be smoothly poured out via the pouring hole
42.
[0150] By the injection molding, the base 6 joins the container
panel integrally on the outside circumference of the pouring hole
42, and the base air-tightly fixes the whole spout closure to the
container 14 safely. The sealed partition 9 seals the spout 10 at
unused time in the bottom of the spout tube, and is breakable by a
brittle line 8 at unsealing time.
[0151] Since the cap 11 covers the spout 10 and the cap 11 is
detachably inserted in the spout tube 5, the spout is protected
hygienically also at the distribution process or the shop
front.
[0152] Since the cap can be detached and attached freely, the cap
can be reclosed.
[0153] The bottom partition 25 of the cap adheres to the top face
of the sealed partition 9 at the undersurface of the bottom
partition 25, and is sealed breakably to the contacted
surfaces.
[0154] When the bottom partition 25 and the pull ring 27 cooperate
and the inserted cap 11 is pulled up with the pull ring 27 at the
time of unsealing, the sealed partition 9 sealed with the bottom
partition 25 of the cap 11 is also pulled up.
[0155] In the embodiment, the cap consists of the bottom partition,
a side wall 28 which fits into an inner surface of the spout tube,
a top panel which covers an upper end of the spout tube, and an
outer wall 30 which covers an outside surface of the spout tube,
the outer wall 30 is provided at the side and the other side where
the pull ring pulls up the cap 11.
[0156] The side wall 28 fits in detachably with the inner surface
of the spout tube 5, and secures the reclosing characteristic of
the cap. The top panel 29 and the outer wall 30 cover the spout
tube, and secure the hygienic characteristic.
[0157] The outer wall 30 which covers an outside surface of the
spout tub is provided at the side and the other side where the pull
ring 27 pulls up the cap 11, and when pulling up the cap with the
pull ring, the other side outer wall becomes the fulcrum of the
pulling-up rotary motion, and secures the controlled movement.
[0158] In the preferable embodiment, the outer wall 30 covers the
whole circumferences of the outside surface of the spout tube 5, at
the side where the pull ring 27 pulls up the cap 11, is breakably
provided at the pulling-unsealing.
[0159] In this case, the other side outer wall 30 becomes the
fulcrum of the pulling-up rotary motion, and secures the controlled
movement. On the other hand, the outer wall 30a of the side where
the cap is pulled up with the pull ring is breakably provided at
the time of the pulling-unsealing, and it has smoothly pulling up
of the cap 11 with the pull ring 27, and a function as the tamper
evidence.
[0160] The present invention is not limited to the above-mentioned
embodiment, and it is possible to make it deform variously based on
the object of the present invention, and it does not eliminate them
from the scope of the present invention.
INDUSTRIAL APPLICABILITY
[0161] This invention can apply the manufacturing of the packaging
container for beverages with the spout closure packed and filled
with the beverages, such as the juice and the milk.
* * * * *