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US20030024950A1 - Inner bag for bag-in-box - Google Patents

Inner bag for bag-in-box Download PDF

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Publication number
US20030024950A1
US20030024950A1 US10/220,057 US22005702A US2003024950A1 US 20030024950 A1 US20030024950 A1 US 20030024950A1 US 22005702 A US22005702 A US 22005702A US 2003024950 A1 US2003024950 A1 US 2003024950A1
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US
United States
Prior art keywords
bag
inner bag
film
box
heat sealed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/220,057
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English (en)
Inventor
Michinori Yoneyama
Makoto Ichikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zacros Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2000056403A external-priority patent/JP4564621B2/ja
Priority claimed from JP2000063866A external-priority patent/JP2001253474A/ja
Application filed by Individual filed Critical Individual
Assigned to FUJIMORI KOGYO CO., LTD. reassignment FUJIMORI KOGYO CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ICHIKAWA, MAKOTO, YONEYAMA, MICHINORI
Publication of US20030024950A1 publication Critical patent/US20030024950A1/en
Abandoned legal-status Critical Current

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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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • 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
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank
    • 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
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank
    • B65D77/065—Spouts, pouring necks or discharging tubes fixed to or integral with the flexible container

Definitions

  • the present invention relates to an improvement for handling of inner bag for bag-in-box comprising an inner bag which is a molded product made of synthetic resin film and an outer box made of cardboard. More in detail, the present invention relates to an improved inner bag for bag-in-box possessing a gazette part.
  • a container composed of an inner bag fabricated by heat sealing of synthetic resin film and an outer box made of cardboard which is prepared for the purpose of filling up, preserving and transferring of fluid such as liquid or powder is commonly called as a bag-in-box, and ones whose capacity are from 5 to 20 liter are broadly used as a container for foods or medicines.
  • These containers are mainly applied for the business use, and actually used as a container for materials of foods or medicines or as a large size container for subdivisional use.
  • the inner bag for bag-in-box can be classified into following two types. That is, one is a molded type inner bag having excellent self-standing ability prepared by a blow molding method or by a vacuum molding method and another one is a film type inner bag which is prepared by thermally sealing of film which is characterized by using smaller amount of synthetic resin. Further, said film type can be classified into a plane bag type and a gazette bag type.
  • a bag of gazette shape has following defect. That is, when the bag is filled up by liquid, since the stress is concentrated to the crossing point of crease of folding part of film located to the side surface and a heat sealed part of upper or lower side, the bag is weak against the stress such as inner pressure.
  • this triangle part disturbs the easiness in handling of the filled up bag, when it is contained into an outer box.
  • the structural feature of a gazette shape inner bag for bag-in-box is characterized as that the side film which is folded from both side edge part to inner side is inserted between a front film and a rear film at the gazette part.
  • a heat sealed part of an upper or lower side is consisted of two heat sealed parts. That is, one is the heat sealed part locating at the center position where the front film and the rear film are faced and said front film is adhered with said rear film directly by heat sealing (this part is called as a heat sealed part), and another one is the heat sealed part locating to the outer side where the front film or the rear film is adhered with the side film by heat sealing.
  • said two heat sealed part are prepared continuously to form a straight line.
  • the surface and the reverse surface of the film which consist of a gazette shape inner bag for bag-in-box are usually made of thermo fusable film, and the films of the side surface are sealed by heat and adhered each other at the folded part of upper or lower side.
  • a laminated film prepared by laminating multi layers so as a biaxial orientated film or a nylon resin layer which are hard to be adhered by heat sealing to be arranged at the surface is used, for the purpose to improve the intensity of inner bag, films of the side surface are not sealed by heat and not adhered each other.
  • the present invention is carried out to dissolve above mentioned problem that a conventional bag-in-box has.
  • the first object of the present invention is to improve the intensity of the inner bag without spoiling the self-standing ability of it when a filled up inner bag for bag-in-box is handled without an outer box.
  • the second object of the present invention is to provide an inner bag for bag-in-box whose easiness in handling and convenience are improved.
  • the first invention is the invention which is preferable to be applied to a gazette shape inner bag for bag-in-box whose side film to be folded is composed of a laminated film prepared by laminating multi layers so as a resin layer which is hard to be adhered by heat sealing is arranged at the surface.
  • the important point of the first invention is an inner bag for bag-in-box comprising reinforcing heat sealed parts formed by cutting out side films and sealing a front film with a rear film are provided continuously or closely to heat sealed parts on an upper side and/or a lower side of the inner bag.
  • the front film is adhered by heat sealing with the rear film by cutting out the side films at a corner part or near the corner part.
  • the inner bag for bag-in-box to which a reinforcing heat sealed parts formed by sealing a front film with a rear film are provided has following strong points based on above mentioned structural feature, that is;
  • the amount of the remaining liquid after whole contents in the inner bag is discharged can be reduces by making the inner bag gazette shape having fin parts divided from the containing part by the heat sealed part. And at the forming process of a reinforcing heat sealed part, even if the cutting off width of a side film is wider than the width of an upper or lower heat sealed part, the cut out part is existing in the fin part, and the leaking of the contained liquid does not occur.
  • the second invention is the invention which is desirable to be applied to a gazette shape inner bag for bag-in-box prepared by adhesion by heat sealing of one or more sheets of film and the important point of the invention is illustrated as follows. That is, the important point of the second invention is an inner bag for bag-in-box providing a holding part formed by sealing the front film with the rear film through or without through the side film so that a not sealed part between the films is formed at or near at least one corner part between the films and the heat sealed parts and so that, when a hand is accessed from the side part of the inner bag, fingers are passed to the outside of the inner bag through the not sealed part.
  • the holding part is prepared on both side of the heat sealed part locates at upper and/or lower side. Furthermore, it is more desirable to provide a cut out part prepared by cutting off one part or all part of film of above mentioned not sealed part locating at upper and/or lower side, because the load to be burdened with a finger can be reduced when the bag is held by a hand. Still further, it is desirable to prepare a band shape sealed part at the voluntary position from the edge of the heat sealed part locating at upper and/or lower side to the outer periphery part, prepare a fin part divided by triangle shape and provide a holding part to the triangle fin part. Said triangle fin part which locates at the lower side can be cut off, and by cutting off it, the self standing ability of the inner bag when it is handled without an outer box can be improved.
  • the front film is adhered by heat sealing with the rear film so that a not sealed part is formed at or near at least one corner between the heat sealed part.
  • the inner bag is designed so as the finger can pass through from the not sealed part of the front film and the rear film when a hand is accessed from the side part of the inner bag to the gap between the front film and the side film or the rear film and the side film. Therefore, the bag can be held by hand without burdening the load to fingers. And it is desirable to provide a holding part composed of the heat sealed part of the front film with the rear film to the both side of the heat sealed part so as the inner bag can be held by both hands.
  • a laminate which is prepared so as a resin layer that is hard to be adhered by heat seal such as a polyamide resin layer or a biaxial orientated film to be arranged on the surface is used as the side film, for the purpose to adhere a front film with a rear film by heat seal, a part of the side film is cut off by circular or oval shape (punch hole) and the reverse side of the front film is adhered by heat seal with the reverse side of the rear film without through the side film.
  • punch holes It is desirable to prepare plural punch holes to improve the intensity, and preferably, the distance among punch holes can be make wider and make it a not sealed part so as to allow the insertion of fingers.
  • easiness in handling of the inner bag of the present invention can be improved by forming a holding part prepared by adhering the front film with the rear film by heat seal so as to form a not sealed part between at least one corner part and heat sealed part, and said not sealed part is located at the corner part or near the corner part.
  • films of higher intensity is used and the toughness of the inner bag becomes stronger. Therefore, when a filled up inner bag is picked up by holding a holding part, the film at the not sealed part is bent toward inner side and sometimes a finger is caught between films.
  • a not sealed part is prepared on upper or lower side and prepare a cut out part in a part of said not sealed part.
  • fingers can pass through and can hold the holding part provided to upper or lower side.
  • the handling of the inner bag becomes very easy, that is, easiness in handling, for example, picking out the inner bag from the outer box, carrying the inner bag or discharging the contents from the inner bag is improved. Further, also the work to insert the inner bag filled up with the content to the outer box becomes very easy.
  • a hole is prepared on upper or lower side, and hereinafter this cut out part can be described as a handle hole. Surrounding the handle hole, the not sealed part can be remained or can not be remained. In a case that the not sealed part is not remained, a hole is formed after all side is sealed by heat and the hole can be used as a handle hole.
  • the present invention for the purpose to prevent the leak of the contents in the inner bag which is caused by preparing the cut out part, it is desirable to prepare a band shape heat sealed part at the voluntary position from the edge of a heat sealed part locating at upper and/or lower side to an outer periphery part, and prepare a fin part divided by triangle shape. And by providing a holding part to the triangle fin part, the contents do not remain in the corner part at the discharging operation, further it acts as a protector of the side film at the transferring operation of the filled up bag-in-box. Further, by cutting off the triangle shape fin part located at the lower side, the self standing stability of the inner bag, which is important when the inner bag is took out, is improved so that the inner bag is easily contained in the outer box.
  • the gazette shape inner bag for bag-in-box of the present invention is the gazette shape bag prepared by inserting a side film which is folded to inner side between the front film and rear film and whose surrounding part is sealed by heat and having tucks at the side part, however, it is possible to use a cylinder shape film instead of the front film, rear film and the side surface film, both sides of the cylindrical film are fold to inner side, and to adhere the upper corner part with the lower corner part by heat sealing without forming a heat sealed part on a side part.
  • FIG. 1 is the plane view of the folded state of one example of the inner bag for bag-in-box of the first invention.
  • FIG. 2 is the plane view of the folded state of the other example of the inner bag for bag-in-box of the first invention.
  • FIG. 3 is the plane view from the bottom of the inner bag for bag-in-box of FIG. 2 in which liquid filled up.
  • FIG. 4 is the plane view of the other example of the inner bag for bag-in-box of the first invention.
  • FIG. 5 is the plane view from the bottom of the inner bag for bag-in-box of FIG. 4 in which liquid is filled up.
  • FIG. 6 is the plane view of the other example of the inner bag for bag-in-box of the first invention.
  • FIG. 7 is the example of the conventional gazette shape inner bag for bag-in-box on which oblique heat sealed parts are formed.
  • FIG. 8 is the example of the conventional gazette shape inner bag for bag-in-box from which the outside parts from oblique heat sealed parts are cut off.
  • FIG. 9 is the plane view from the bottom of the inner bag for bag-in-box of FIG. 7 in which liquid contents is filled up.
  • FIG. 10 is the plane view from the bottom of the inner bag for bag-in-box of FIG. 8 in which liquid is filled up.
  • FIG. 11 is the plane view of the folded state of one example of the inner bag for bag-in-box of the second invention.
  • FIG. 12 is the plane view of the folded state of the other example of the inner bag for bag-in-box of the second invention.
  • FIG. 13 is the plane view of the folded state of the other example of the inner bag for bag-in-box of the second invention to which cut out parts are formed.
  • FIG. 14 is other example of the inner bag for bag-in-box of the second invention showing the plane view of the folded state of the inner bag for bag-in-box of FIG. 13 from which triangle fin parts locating at lower position are cut off.
  • FIG. 15 is the perspective view of the inner bag for bag-in-box of FIG. 14 in which liquid is filled up.
  • FIG. 16 is the other example of the inner bag for bag-in-box of the second invention showing the plane view of the folded state of the inner bag to the corner part of which a punch hole is formed.
  • FIG. 17 is the other example of the inner bag for bag-in-box of the second invention showing the plane view of the folded state of the inner bag which abbreviate to form a heat sealed part at the both sides.
  • FIG. 18 is the other example of the inner bag for bag-in-box of the second invention which abbreviates to form a heat sealed part at the sides, showing the plane view of the folded state of the inner bag.
  • FIG. 19 is the partial plane view of the other example of the inner bag for bag-in-box of the second invention showing the folded state of the inner bag to the corner part and near the heat sealed part of which punch holes are formed.
  • FIG. 20 is the partial plane view of another example of the inner bag for bag-in-box of the second invention showing the folded state of the inner bag to the corner part and near the heat sealed part of which punch holes and also cut out parts are formed.
  • FIG. 21 is the conventional inner bag for bag-in-box with handle parts.
  • a laminate such as a laminated film or a co-extruded film is used according to the required ability.
  • a laminate to be used a laminate having following structural feature can be mentioned. That is, a film having relatively high mechanical strength such as biaxial orientated polyamide, biaxial orientated polyester or biaxial orientated polypropylene or a resin layer not to be easy sealed by heat e.g. polyamide resin layer is arranged to be the outermost surface layer, and a polyolefin resin layer to be easily sealed by heat such as polyethylene or polypropylene is arranged to be the inmost layer, can be mentioned.
  • an adequate functional film can be voluntarily added to the laminate.
  • a silica evaporated film or copolymer of ethylene-vinylalcohol (EVOH) can be added, and when a light shielding ability is necessary, an aluminum foil or an aluminum evaporated film can be added to the laminate.
  • EVOH ethylene-vinylalcohol
  • adequate multi layered film, which is a laminate is voluntarily selected according to the use.
  • a laminate film composed of polyester, aluminum foil and polyethylene, a co-extruded multi layered film of EVOH and polyethylene or a co-extruded multi layered film of polyamide, EVOH and polyethylene can be mentioned. Further, these films can be used alone or can be used by overlapping with polyethylene single film without sealing, however, not intending to be limited to them.
  • the heat sealed part of upper and/or lower side indicates the part where a front film is directly adhered by heat seal with a rear film at upper and/or lower side.
  • a cut out part is prepared to a side film continuously or closely to said heat sealed part, and a reinforced heat sealed part is formed by adhering a front film with a rear film by heat sealing.
  • any shape such as circular or oval shape can be used, and for the purpose to improve the mechanical strength plural numbers of cut out parts can be prepared. In this case, it is desirable to prepare a cut out part on the corner part or closely to the corner part.
  • FIG. 1 is the plane view of the folded state of one example of the inner bag for bag-in-box of the first invention.
  • 1 is an inner bag
  • 2 is a heat sealed part of the upper side
  • 3 is a heat sealed part of the lower side
  • 4 , 4 ′ are side films which are folded
  • 5 , 5 ′ are reinforcing heat sealed parts which exist closely to the heat sealed part of the upper side
  • 6 is a front film of the inner bag
  • 7 is a heat sealed part which divides a containing part and a fin part.
  • 8 and 10 are a crossing point of the heat sealed part of the lower side and the side film
  • 9 and 11 are crossing point of the heat sealed part of the upper side and the side film
  • 13 is a heat sealed part of the side periphery
  • 14 is a rear film
  • 15 is a spout.
  • FIG. 2 is the case of the inner bag for bag-in-box of FIG. 1 to which a corner heat sealed part 16 is formed by cutting out the side film near the corner point.
  • FIG. 3 is a plane view from the bottom of the inner bag for bag-in-box of FIG. 2 in which liquid is filled up.
  • the reinforced heat sealed part 5 , 5 ′ since the front film and the rear film of the bag are becoming one body, even if the impact is added, the side film near the heat sealed part does not spread and the mechanical strength is improved.
  • FIG. 4 is the shape showing outer part of the heat sealed part 7 which divide a containing part and fin part is cut off.
  • FIG. 5 is the perspective illustration from the bottom side of the inner bag for bag-in-box of FIG. 4 in which liquid is filled up.
  • a front film and a rear film of inner bag are adhered by heat sealing and become one body at the reinforcing heat sealed parts 5 , 5 ′, therefore, even if the impact is added, the side film near the heat sealed part does not spread and the mechanical strength is improved. Further, the inner bag can stand up by itself stable, because the fin part is cut off.
  • FIG. 6 is another example of the present invention. This drawing shows the example that the all fin parts are cut off.
  • FIG. 7 and FIG. 8 are the plane view of the conventional inner bag for bag-in-box.
  • FIG. 9 is the perspective illustration from the bottom side of the inner bag for bag-in-box of FIG. 7 in which liquid is filled up
  • FIG. 10 is the perspective illustration from the bottom side of the inner bag for bag-in-box of FIG. 8 in which liquid is filled up.
  • the inner bag for bag-in-box shown in FIG. 9 and FIG. 10 have a weak point that the side films near the heat sealed part is easily open and the mechanical strength against the inner pressure is not so strong.
  • FIG. 11 is the plane view of the folded state of the inner bag for bag-in-box of the second invention.
  • 17 is the not sealed part
  • 2 is the heat sealed part of the upper side
  • 3 is the heat sealed part of the lower side
  • 13 is the heat sealed part of the side periphery
  • 12 and 12 ′ are the folding line of the side film
  • 15 is the spout
  • 4 is the side film
  • 6 is the front film.
  • this inner bag for bag-in-box when a hand is inserted from the side part, a finger can pass through from the not sealed part 17 and can hold the corner heat sealed part.
  • the lower side it is also possible to prepare a not sealed part and to seal it.
  • FIG. 12 is the plane view of the folded state of the inner bag for bag-in-box of another Example of the present invention.
  • 18 is a cut out part and 7 is a oblique heat sealed part.
  • FIG. 12 is the Example to avoid said problem and to reduce the load to the finger by preparing a cut out part (handle hole) 18 .
  • a heat sealed part 7 is prepared obliquely from the edge part of the heat sealed part to the outer periphery part.
  • FIG. 13 is the plane view of the other Example of the present invention, to the lower part of which a oblique heat sealed part 7 is prepared.
  • FIG. 14 is the plane view of the inner bag for bag-in-box from which a triangle shape fin part formed by preparing a oblique heat sealed part at the lower side. And by cutting off said triangle shape fin part, the self-standing ability of the inner bag filled up with liquid is improved.
  • FIG. 15 is the perspective view of the inner bag for bag-in-box of FIG. 14 in which liquid is filled up. It is clearly understand from FIG. 15 that the film locating at the both side of the upper heat sealed part can expand to front and rear direction, and the filled up inner bag can be easily lifted by inserting fingers into handle holes. If the handling holes are not prepared, it is not so easy to lift the large capacity inner bag of 20 liter around, because the high load is burdened to the fingers.
  • FIG. 16 is the plane view of the inner bag for bag-in-box using a laminate arranging a resin layer which is hard to be sealed by heat on the surface as a side film.
  • a punch hole is prepared at the corner of the side film, the front film and rear film forms the reinforcing heat sealed part 16 by being sealed by heat together with without sealing the side film throughout the punch hole, and a cut out part 18 can be prepared between a heat sealed part and a corner heat sealed part so as the cut out part acts as a handle.
  • FIGS. 17 and 18 are the plane view showing the other examples of the present invention. These examples are showing the cases abbreviating the sealing of the side part.
  • These bags show the following case, that is, the both ends of the cylindrical film such as an inflation tube or a cylindrical tube formed by back sealing method is folded to inner side so as to form tucks and upper and lower part are adhered by heat sealing.
  • FIG. 17 shows an example that a handle hole is prepared at the upper triangle shape fin part of the inner bag that abbreviating the preparation of the sealing at the side part, further another handle hole is also prepared at the lower triangle shape fin part of the inner bag.
  • FIG. 18 shows an example that a reinforcing heat sealed part 16 is prepared by a punch hole closely to the upper corner and a handling hole is prepared at the upper triangle shape fin part, further, the lower triangle shape fin part is cut off.
  • FIGS. 19 and 20 are the partial plane view showing the other examples of the present invention.
  • FIG. 19 shows an example that a reinforcing heat sealed part 16 is prepared by a punch hole at the corner part and closely to the end of the heat sealed part by making a punch hole
  • FIG. 20 shows an example that a cut out part 18 is prepared between reinforcing heat sealed part 16 prepared by two punch holes shown in FIG. 19.
  • FIG. 19 since the part between two holes is not sealed, it is possible to hold the bag for bag-in-box by piercing fingers throughout this not sealed part. As shown in FIG. 20, the bag for bag-in-box can be hold more easily by preparing a cut out part 18 .
  • Example A and B of the present invention corresponding to FIG. 2 and FIG. 4 and Comparative Example C and D corresponding to FIG. 7 and FIG. 8 which are the conventional type container.
  • the self-standing ability and the intensity for dropping of these containers are compared.
  • the materials of these inner bag are the double bag using linear polyethylene mono film of 60 ⁇ m thickness as an inner layer and using laminated film composed of 15 ⁇ m thickness nylon film/60 ⁇ m thickness linear polyethylene mono film as an outer layer.
  • the capacity of the inner bag is united to 20 liter.
  • the first invention is an inner bag for bag-in-box comprising reinforcing heat sealed parts formed by cutting out side films and sealing a front film with a rear film are provided continuously or closely to heat sealed parts on an upper side and/or a lower side of the inner bag. And according to the first invention, when abnormal stress caused by careless falling down of the inner bag is loaded to the bag, it is possible to prevent the breaking of the side films near the heat sealed part on an upper side or a lower side and can reduce the load to the top heat sealed part without spoiling the self-standing ability of the container, that is the substantial mechanical strength of the bag can be improved.
  • the present invention at the corner part or near the corner part, side films are cut off and a front film is adhered by heat sealing with a rear film, and by this structural feature, the damage of a side film caused by the contact with the inner surface of an outer box can be prevented. And, since the heat sealed parts at the corner part can be used as the handling part, it is convenience for loading and unloading of the filled up inner bag from the outer box, transferring of the filled up inner bag or for discharging of the contents contained in the inner box.
  • the upper fin part does not have influence on the self-standing ability of the inner box directly, it is possible to be cut off as well as the lower fin part so as to improve the self-standing ability by making the center of gravity lower, or not to be cut off so as to be used as a handle part when the bag is handled. Furthermore, it is possible to prepare a partial heat sealed part or a full heat sealed part.
  • the heat sealed part in the corner part can be used as a handle part, consequently it brings excellent effects such as easy work, good handling and convenience in cases when a filled up inner bag is lifted without an outer box, transferred or the contained liquid is discharged.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
US10/220,057 2000-03-01 2001-03-01 Inner bag for bag-in-box Abandoned US20030024950A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000056403A JP4564621B2 (ja) 2000-03-01 2000-03-01 バッグインボックス用内袋
JP2000063866A JP2001253474A (ja) 2000-03-08 2000-03-08 バッグインボックス内袋
PCT/JP2001/001579 WO2001064536A1 (fr) 2000-03-01 2001-03-01 Sachet interieur d'une caisse-outre

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EP (1) EP1277666B1 (fr)
AT (1) ATE370077T1 (fr)
AU (1) AU2001236030A1 (fr)
DE (1) DE60129948D1 (fr)
WO (1) WO2001064536A1 (fr)

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US20050017011A1 (en) * 2002-07-24 2005-01-27 Andrews Jared P. Beverage container
US20060062952A1 (en) * 2003-12-19 2006-03-23 Pepsico, Inc. Dispensing package
US20090283553A1 (en) * 2008-05-19 2009-11-19 Vong Hoss Modular constructed regulated fluid dispensing device
US20090283540A1 (en) * 2008-05-19 2009-11-19 Jason Morgan Kelly Regulated fluid dispensing device and method of dispensing a carbonated beverage
US20090283579A1 (en) * 2008-05-19 2009-11-19 Kelly Jason M Regulated fluid dispensing system packaging
US20090283554A1 (en) * 2008-05-19 2009-11-19 Jason Morgan Kelly Regulated fluid dispensing device and method of dispensing a carbonated beverage
US20100129008A1 (en) * 2008-07-15 2010-05-27 David Bellmore Laminate for a bag for flowable material having an oriented polypropylene, and a bag made therefrom
CN106470910A (zh) * 2014-06-26 2017-03-01 通用电气健康护理生物科学股份公司 具有角板的袋焊缝
US9751656B2 (en) 2015-02-27 2017-09-05 Lbp Manufacturing Llc Beverage container
US10919680B1 (en) 2018-10-08 2021-02-16 Packaging Corporation Of America Liquid beverage container
CN113226943A (zh) * 2018-12-26 2021-08-06 恩特格里斯公司 用于外包装组合件的衬里
US11110032B2 (en) * 2016-11-25 2021-09-07 Sartorius Stedim Fmt Sas Fillable 3D flexible pouch for biopharmaceutical fluids, and method for producing such a pouch
US20220348383A1 (en) * 2021-04-30 2022-11-03 Packsize Llc Envelope and template for forming same
US11691799B2 (en) 2018-10-05 2023-07-04 Dow Global Technologies Llc Bag-in-box assembly
USD1039043S1 (en) 2021-05-28 2024-08-13 Packsize Llc Corrugated envelope

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CN103648920B (zh) 2011-03-01 2016-10-05 高级技术材料公司 嵌套的吹塑内衬和外包装及其制造方法
CN105314219A (zh) * 2014-06-26 2016-02-10 青岛海尔空调器有限总公司 一种包装袋及其制造方法和设备
JP5916921B2 (ja) * 2015-05-14 2016-05-11 日鉄住金ドラム株式会社 缶容器の自動封入用内袋
FR3053586A1 (fr) * 2016-07-08 2018-01-12 Sartorius Stedim Fmt Sas Poche souple 3d a emplir pour fluides biopharmaceutiques, et procede pour realiser une telle poche

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Cited By (29)

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US20030134059A1 (en) * 1996-05-13 2003-07-17 Andrews Jared P. Beverage container
US20050017011A1 (en) * 2002-07-24 2005-01-27 Andrews Jared P. Beverage container
US7077309B2 (en) * 2002-07-24 2006-07-18 J & M Coffee Container Company, Inc. Beverage container
US20060062952A1 (en) * 2003-12-19 2006-03-23 Pepsico, Inc. Dispensing package
US7204950B2 (en) 2003-12-19 2007-04-17 Pepsico, Inc. Dispensing package
US8186569B2 (en) 2008-05-19 2012-05-29 Millercoors, Llc Regulated fluid dispensing system packaging
US20090283540A1 (en) * 2008-05-19 2009-11-19 Jason Morgan Kelly Regulated fluid dispensing device and method of dispensing a carbonated beverage
US20090283579A1 (en) * 2008-05-19 2009-11-19 Kelly Jason M Regulated fluid dispensing system packaging
US20090283554A1 (en) * 2008-05-19 2009-11-19 Jason Morgan Kelly Regulated fluid dispensing device and method of dispensing a carbonated beverage
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US8191740B2 (en) 2008-05-19 2012-06-05 Millercoors, Llc Modular constructed regulated fluid dispensing device
US20100129008A1 (en) * 2008-07-15 2010-05-27 David Bellmore Laminate for a bag for flowable material having an oriented polypropylene, and a bag made therefrom
CN106470910A (zh) * 2014-06-26 2017-03-01 通用电气健康护理生物科学股份公司 具有角板的袋焊缝
US11084627B2 (en) 2014-06-26 2021-08-10 Cytiva Sweden Ab Bag weld with gusset
US9751656B2 (en) 2015-02-27 2017-09-05 Lbp Manufacturing Llc Beverage container
US11110032B2 (en) * 2016-11-25 2021-09-07 Sartorius Stedim Fmt Sas Fillable 3D flexible pouch for biopharmaceutical fluids, and method for producing such a pouch
US11691799B2 (en) 2018-10-05 2023-07-04 Dow Global Technologies Llc Bag-in-box assembly
US10919680B1 (en) 2018-10-08 2021-02-16 Packaging Corporation Of America Liquid beverage container
CN113226943A (zh) * 2018-12-26 2021-08-06 恩特格里斯公司 用于外包装组合件的衬里
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US20230112424A1 (en) * 2018-12-26 2023-04-13 Entegris, Inc. Liner for an overpack assembly
US12304715B2 (en) * 2018-12-26 2025-05-20 Entegris, Inc. Liner for an overpack assembly
US20220348383A1 (en) * 2021-04-30 2022-11-03 Packsize Llc Envelope and template for forming same
US12252298B2 (en) * 2021-04-30 2025-03-18 Packsize Llc Envelope and template for forming same
USD1039043S1 (en) 2021-05-28 2024-08-13 Packsize Llc Corrugated envelope

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DE60129948D1 (de) 2007-09-27
WO2001064536A1 (fr) 2001-09-07
EP1277666A4 (fr) 2006-01-04
AU2001236030A1 (en) 2001-09-12
EP1277666B1 (fr) 2007-08-15
ATE370077T1 (de) 2007-09-15
EP1277666A1 (fr) 2003-01-22

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