WO2014042025A1 - 包装容器および該包装容器に収容された包装製品並びに前記包装容器の製造方法および製造装置 - Google Patents
包装容器および該包装容器に収容された包装製品並びに前記包装容器の製造方法および製造装置 Download PDFInfo
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- WO2014042025A1 WO2014042025A1 PCT/JP2013/073499 JP2013073499W WO2014042025A1 WO 2014042025 A1 WO2014042025 A1 WO 2014042025A1 JP 2013073499 W JP2013073499 W JP 2013073499W WO 2014042025 A1 WO2014042025 A1 WO 2014042025A1
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- Prior art keywords
- lid
- container
- side wall
- chamber
- container body
- Prior art date
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- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
- B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
- B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
- B65B31/025—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
- B65B31/028—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers closed by a lid sealed to the upper rim of the container, e.g. tray-like container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
- B65B61/065—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting by punching out
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
- B65B7/164—Securing by heat-sealing
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- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/34—Trays or like shallow containers
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- 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
- B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
- B65D11/10—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of polygonal cross-section and all parts being permanently connected to each other
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- 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
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
- B65D21/023—Closed containers provided with local cooperating elements in the top and bottom surfaces, e.g. projection and recess
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- 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
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0233—Nestable containers
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- 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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0233—Removable lids or covers without integral tamper element secured by rolling or other plastic deformation
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- 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
- B65D51/16—Closures not otherwise provided for with means for venting air or gas
- B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
- B65D51/1638—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element by means of an element bursting upon a predetermined pressure in the container being exceeded
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- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2069—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
- B65D81/2076—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in an at least partially rigid container
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- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
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- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
- B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
Definitions
- the present invention relates to a packaging container composed of a main body and a base material, which accommodates various foods such as lunch boxes, noodles, and side dishes.
- a lid made of a transparent sheet or film is used for a packaging container for storing food such as lunch boxes, noodles, and side dishes.
- a packaging container for storing food such as lunch boxes, noodles, and side dishes.
- a lid made of a sheet is fitted into an opening of a container main body by internal fitting or external fitting, and the container main body and the lid material are covered with a shrink film.
- a shrink film there are one that covers the entire container body and the cover material with a shrink film, and one that covers a part of the container body and the cover material in a strip shape.
- there exists a thing of the form which fixes a container main body and a cover material with an adhesive tape instead of a shrink film.
- the shape of the opening of the container body is not particularly limited, and an arbitrary shape such as a quadrangle, an ellipse, or a round shape is employed.
- the opening of the container body is provided with a lid material that matches the shape of the opening by internal fitting or external fitting, and the container main body and the lid material are fixed by the shrink film or the adhesive tape. Yes.
- the container body and the lid material are fixed by a shrink film or adhesive tape, but the lid material is in a state of being fitted in the container body.
- the lid material is in a state of being fitted in the container body.
- the liquid material leaks into the gap between the packaging container and the shrink film, resulting in a very poor aesthetic appearance.
- Patent Document 1 As a form capable of enhancing the sealing performance of the packaging container, there is a structure in which a flange portion is provided on the periphery of the opening of the container body, and a lid made of a film is heat sealed on the flange portion (for example, Patent Document 1) ).
- the packaging container which can ensure the sealing property
- a flat shape is known. That is, the packaging container having such a shape can adopt any shape such as a quadrangle, an ellipse, and a round as the shape of the opening of the container body, but the height from the bottom surface of the container body to the flange portion can be adopted. It has a constant and flat tray shape. This is because the flange portion needs to be formed on the same plane for the purpose of heat-sealing the lid member made of a film on the flange portion.
- the present invention is capable of industrial mass production, can ensure sealing, and can display the contents three-dimensionally, a packaging product accommodated in the packaging container, and manufacture of the packaging container It is an object to provide a method and a manufacturing apparatus.
- the present inventors in a packaging container formed by heat-sealing a lid made of a film or sheet on a flange provided at the periphery of the upper end of the side wall of the container body, It has been found that at least a part of the upper end portion of the side wall portion may be located higher than the upper end portions of the other side wall portions.
- the packaging container shown in FIG. 12 (A) is a packaging container having a rectangular bottom surface (91), with one side wall (92) having a triangular roof shape and the remaining other side wall having a rectangular shape. It is.
- the shape of the bottom surface portion (101) is semi-elliptical, and the shape of the side wall portion (102) rising from the straight bottom surface portion is changed to a triangular roof shape and remains. The height of the side wall portion rising from the elliptical portion is constant.
- 14 (A) is a circular packaging container in which the bottom surface portion (111) is partially cut out in a fan shape, and the side wall portion (112) rising from the fan-shaped straight portion is circular.
- the center portion of the bottom wall is the highest and is inclined toward the outer circumferential portion, and the height of the side wall portion standing up from the circumferential portion of the remaining bottom portion is made constant.
- FIGS. 12A, 13A, and 14A As a modification of the packaging container shown in FIGS. 12A, 13A, and 14A, the upper edge of the side wall portion having the high position and the lower edge of the bottom surface side are substantially the same. What was made into the shape was considered. These packaging containers are shown in FIGS. 12 (B), 13 (B), and 14 (B).
- the packaging containers as described above are capable of showing the contents in a three-dimensional manner while ensuring the sealing property, a problem has been found that industrial mass production is difficult. That is, in the conventional packaging container manufacturing apparatus (120) shown in FIG. 15, when the film as the lid is heat-sealed to the flange of the container body, the film is wrinkled and the appearance of the packaging container is impaired. There has occurred.
- the present inventors have found that the following invention is effective and completed the present invention.
- the present invention adopts the following configuration in order to solve the above problems.
- a packaging container having a bottom surface portion and a side wall portion, a container body having a flange on the periphery of the upper end portion of the side wall portion, and a lid material heat-sealed to the flange,
- the lid is made of a film or sheet
- the pair of side wall portions facing each other have the same shape, and at least a part of the upper end portions of the pair of side wall portions is positioned higher than the upper end portions of the other pair of side wall portions facing each other.
- Packaging container is a flat film or sheet when fed from a raw roll or supplied as a sheet raw paper, and follows the shape of the upper edge of the container body before heat sealing or at the time of heat sealing.
- the packaging container according to (1) above which is deformed and heat sealed.
- (3) The shape of the upper end side of the side wall part in which at least a part of the upper end part of the side wall part is higher than the upper end part of the other side wall part is an upwardly convex arc, triangle or trapezoid.
- a packaging container according to any one of the above.
- (6) The packaging container according to (5), wherein a lower edge portion of the protruding portion has substantially the same shape as a corresponding upper edge portion of the side wall portion.
- cover material has a function which the vapor hole provided in the lid
- the packaging container according to any one of the above (1) to (6), which has a function of peeling and opening at a pressure of (9) A packaged product characterized by containing foodstuffs in the packaging container according to any one of (1) to (8) above.
- Packaging including a step of arranging a plurality of container main bodies having a bottom surface portion and a side wall portion and having flanges on the periphery of the upper end portion of the side wall portions, and continuously heat-sealing a lid material on the flange of the container main body.
- a method of manufacturing a container The container body has a pair of side wall portions facing each other in the same shape, and at least a part of the upper end portion of the pair of side wall portions is higher than the other pair of side wall portions facing each other.
- the set of side walls facing the container body are arranged so as to be perpendicular to the conveyance direction of the container body, and conveyed,
- the lid made of a flat film or sheet is fed from a feed roll and sent through a dancer roll, A plate substantially the same as the shape of the upper end of the pair of side walls facing each other is applied to the lid member, and the lid member is heat sealed to the flange of the container body using a heat seal block.
- a heat seal between the flange of the container body and the lid member is performed in a vacuum chamber,
- the vacuum chamber has a chamber body and a chamber lid that abuts on the chamber body, and the shape of the upper edge of the pair of side walls facing the container body and the corresponding upper edge of the side wall of the chamber body.
- a vacuum chamber whose shape is similar to the shape, A cradle for the container body is provided on the chamber body side, The width of the lid member is wider than the width of the container body and narrower than the width of the vacuum chamber, Attaching the container body to the cradle, The lid member deformed into the shape of the upper end side of the pair of side walls facing the plate is sandwiched between the chamber lid and the chamber body to seal the vacuum chamber, After the inside of the vacuum chamber is evacuated and filled with a filling gas, the pressure is adjusted, Heat-sealing the flange of the container body and the lid by a heat seal block provided on the chamber lid side, The method for producing a packaging container according to (10) above, wherein the lid member outside the flange of the packaging container is removed.
- Packaging including a step of arranging and transporting a plurality of container bodies having a bottom surface part and a side wall part and having flanges on the periphery of the upper end part of the side wall part, and continuously heat-sealing the lid material on the flanges of the container body
- the container body has a pair of side wall portions facing each other in the same shape, and at least a part of the upper end portion of the pair of side wall portions is higher than the other pair of side wall portions facing each other.
- the pair of side wall portions facing the container body are arranged so as to be parallel to the conveyance direction of the container body, and are conveyed,
- the lid made of a flat film or sheet is fed from a feed roll and sent through a dancer roll, In order to make the lid material conform to the shape of the side of the upper end portion of the pair of side wall portions facing each other, slack of the lid material that occurs between the time when the lid material is extended and the flange of the container body is heat sealed.
- a packaging container wherein the lid material is heat-sealed to a flange of the container body using a heat seal block while correcting and adjusting with the dancer roll or another dancer roll different from the dancer roll. Production method.
- a heat seal between the flange of the container body and the lid member is performed in a vacuum chamber
- the vacuum chamber has a chamber body and a chamber lid that comes into contact with the chamber body, and is a vacuum chamber in which a contact surface between the chamber lid and the chamber body is a horizontal plane, A cradle for the container body is provided on the chamber body side, The width of the lid member is wider than the width of the container body and narrower than the width of the vacuum chamber, Attaching the container body to the cradle, The lid material is sandwiched between the chamber lid and the chamber body to seal the vacuum chamber, After the inside of the vacuum chamber is evacuated and filled with a filling gas, the pressure is adjusted, Heat-sealing the flange of the container body and the lid by a heat seal block provided on the chamber lid side, The method for producing a packaging container according to (12) above, wherein the lid material outside the flange of the packaging container is removed.
- Packaging having a means for continuously heat-sealing a lid material on the flange of the container body, by arranging a plurality of container bodies having a bottom surface portion and a side wall portion and having a flange on the periphery of the upper end portion of the side wall portion.
- a container manufacturing apparatus The container body has a pair of side wall portions facing each other in the same shape, and at least a part of the upper end portion of the pair of side wall portions is higher than the other pair of side wall portions facing each other.
- the set of side walls facing the container body are arranged so as to be perpendicular to the conveyance direction of the container body, and conveyed,
- the lid made of a flat film or sheet is fed from a feed roll and sent through a dancer roll,
- a plate substantially the same as the shape of the upper end of the pair of side walls facing each other is applied to the lid member, and the lid member is heat sealed to the flange of the container body using a heat seal block.
- the vacuum chamber has a chamber body and a chamber lid that abuts on the chamber body, and the shape of the upper edge of the pair of side walls facing the container body and the corresponding upper edge of the side wall of the chamber body.
- a vacuum chamber whose shape is similar to the shape, A cradle for the container body is provided on the chamber body side, The width of the lid member is wider than the width of the container body and narrower than the width of the vacuum chamber, Attaching the container body to the cradle, The lid member deformed into the shape of the upper end side of the pair of side walls facing the plate is sandwiched between the chamber lid and the chamber body to seal the vacuum chamber, After the inside of the vacuum chamber is evacuated and filled with a filling gas, the pressure is adjusted, Heat-sealing the flange of the container body and the lid by a heat seal block provided on the chamber lid side, The apparatus for manufacturing a packaging container according to (15), wherein the lid member outside the flange of the packaging container is removed.
- Packaging having means for continuously transferring a plurality of container bodies having a bottom surface portion and a side wall portion and having flanges on the periphery of the upper end portion of the side wall portions, and continuously heat-sealing the lid material on the flanges of the container body
- the container body has a pair of side wall portions facing each other in the same shape, and at least a part of the upper end portion of the pair of side wall portions is higher than the other pair of side wall portions facing each other.
- the pair of side wall portions facing the container body are arranged so as to be parallel to the conveyance direction of the container body, and are conveyed,
- the lid made of a flat film or sheet is fed from a feed roll and sent through a dancer roll, In order to make the lid material conform to the shape of the side of the upper end portion of the pair of side wall portions facing each other, slack of the lid material that occurs between the time when the lid material is extended and the flange of the container body is heat sealed.
- a packaging container wherein the lid material is heat-sealed to a flange of the container body using a heat seal block while correcting and adjusting with the dancer roll or another dancer roll different from the dancer roll. Manufacturing equipment.
- the vacuum chamber has a chamber body and a chamber lid that comes into contact with the chamber body, and is a vacuum chamber in which a contact surface between the chamber lid and the chamber body is a horizontal plane, A cradle for the container body is provided on the chamber body side, The width of the lid member is wider than the width of the container body and narrower than the width of the vacuum chamber, Attaching the container body to the cradle, The lid material is sandwiched between the chamber lid and the chamber body to seal the vacuum chamber, After the inside of the vacuum chamber is evacuated and filled with a filling gas, the pressure is adjusted, Heat-sealing the flange of the container body and the lid by a heat seal block provided on the chamber lid side, The apparatus for manufacturing a packaging container according to (17), wherein the lid member outside the flange of the packaging container is removed. (19) The packaging container manufacturing apparatus according to any one of (15) to (18) above, wherein the heat
- a packaging container capable of showing the contents three-dimensionally while ensuring hermeticity, a packaging product accommodated in the packaging container, a method for producing the packaging container, and A manufacturing apparatus can be provided.
- the packaging container which concerns on this invention is a packaging container which has a bottom face part and a side wall part, and has a container main body which has a flange in the upper end part periphery of the said side wall part, and the cover material heat-sealed by the said flange.
- the lid member is made of a film or a sheet.
- the pair of side wall portions facing each other have the same shape, and at least a part of the upper end portion of the pair of side wall portions is higher than the upper end portion of the other pair of side wall portions facing each other. It is in position.
- the conventional packaging container has a flat structure in which the flange at the periphery of the opening of the container body is provided on the same surface.
- the pair of side wall portions facing each other have the same shape, and at least a part of the upper end portion of the pair of side wall portions is the upper end of the other pair of side wall portions facing each other. Since it is in a position higher than the part, it has a structure in which the flange is not on the same plane, and a three-dimensional feeling can be given while maintaining the sealing performance of the packaging container.
- the height of the portion of the upper end of the set of side walls that is higher than the upper end of the other set of opposing side walls is set when the packaging container of the present invention is placed.
- the height from the placement surface is preferably 1.2 to 2.0 times higher than the height from the placement surface of the upper end portion of the other pair of opposing side wall portions.
- the shape of the packaging container of the present invention is symmetrical, it is possible to provide a sealed container with a three-dimensional feeling while maintaining an atmosphere close to that of a conventional rectangular parallelepiped familiar packaging container. Furthermore, as will be described later, the packaging container of the present invention can be industrially mass-produced without wrinkles on the lid material by improving the conventional packaging container manufacturing apparatus.
- FIG. 1 shows an example of the shape of the container body of the packaging container according to the present invention.
- the container main body shown in FIG. 1 has a bottom surface portion (11) having a quadrangular shape, a pair of opposing side wall portions (12) having a triangular roof shape, and another set of side wall portions (13) remaining. Is a rectangle.
- FIG. 1 shows a triangular container body in which the shape of the side of the upper end of the side wall in which at least a part of the upper end of the side wall is higher than the upper end of the other side wall is convex upward.
- the height of the side wall portion of the container body is not made constant, the pair of side wall portions facing each other has the same shape, and at least a part of the upper end portion of the pair of side wall portions is another set of facing walls.
- the packaging container and the contents can be given a three-dimensional effect by being at a position that is higher than the upper end of the side wall portion to be a vertex.
- the material of the container body is not particularly limited as long as it can form a flange having heat sealability.
- a plastic resin used in a conventional packaging container can be preferably used.
- the lid member may be a film or sheet having heat sealability.
- the flange (14) of the container body may be inclined outward.
- the packaging container of the present invention is provided with a flange on the periphery of the upper end of the side wall of the container body, and the flange is heat sealed with a cover made of a film or a sheet. The effect is demonstrated.
- the packaging container can be completely sealed.
- MAP Modified Atmosphere Packaging
- the lid material can be made highly glossy and highly transparent. Since the packaging container of the present invention employs a film or sheet for the lid, the upper surface of the packaging container can be made highly glossy and highly transparent. As a result, the contents can be shown more clearly, and a feeling of freshness can be given. Moreover, antifogging property can be provided to a packaging container by apply
- the lid material may be a single layer or a laminated layer, but is preferably as thin as possible in order to achieve the above high gloss and high transparency.
- the lid material for example, in the case of a film, a material of about 30 ⁇ m or more and less than 150 ⁇ m, and in the case of a sheet, a material of about 150 ⁇ m or more and 250 ⁇ m or less can be favorably used.
- the lid material is a flat film or sheet when fed out from a raw roll or supplied as a sheet raw paper, and the shape of the upper edge of the container body before or during heat sealing It is preferable that it is deformed so as to be heat-sealed.
- a convex or concave lid obtained by molding a sheet is externally or internally fitted to the container body.
- the packaging container of the present invention deforms and heat-seals the lid made of a flat film or sheet according to the shape of the upper edge of the container body as described above, so that the lid in the outline No molding is required.
- unnecessary members such as a shrink film and an adhesive tape are not necessary, waste can be reduced, and further, it is suitable for weight reduction and environmental support.
- easy-openability can be imparted by adjusting the heat seal strength between the container body and the lid member, or by providing a protruding knob on a part of the end of the lid member.
- the upper edge portion of the side wall portion having the high position and the lower edge portion on the bottom surface side have substantially the same shape.
- the shape of the bottom face part of the container body also becomes three-dimensional, and a three-dimensional feeling can be given by the inside of the packaging container and the contents.
- the shape of the bottom face part of the container body is substantially the same as the shape of the lid on the upper surface of the packaging container, a plurality of packaging containers can be stacked up and down.
- the contents of the packaging container are raised, uneven heating of the food can be prevented when heated in a microwave oven. This is because in the microwave oven, it is easier to warm the upper part than the lower part inside.
- the container body shown in FIG. 2 is an example in which the shape of the bottom surface of the container body shown in FIG. 1 is substantially the same as the shape of the top surface of the packaging container. That is, the shape of the upper edge of the pair of side wall portions (22) facing each other and the shape of the lower edge portion on the bottom surface side is a convex triangle upward, and the shape of the other pair of facing side wall portions (23) facing each other. Is a rectangle.
- the container main body shown in FIG. 3 is a modification of the container main body shown in FIG. 2, and the shape of the upper edge portion and the lower edge portion on the bottom side of the pair of side wall portions (32) facing each other is a square shape.
- the remaining pair of opposing side wall portions (33) are rectangular in shape.
- the container main body shown in FIG. 4 has another set of remaining side walls, with the upper edge of the pair of side walls (42) facing each other and the bottom edge of the lower edge formed in an upwardly convex arc shape.
- the part (43) is rectangular.
- the container main body shown in FIG. 5 has a trapezoidal shape of the upper edge of the pair of side wall portions (52) facing each other and the lower edge portion of the bottom surface side, and the other set of side wall portions (53) is rectangular. Is. In the case of the container main body shown in FIGS. 2 to 5, it becomes easy to put a hand into the space of the bottom surface portion, so that it becomes easy to hold the packaging container and to easily eat the ingredients of the contents.
- the container body of the present invention may have a shape in which a partition is provided on the container body as shown in FIGS. 6 (a) to 6 (e). In this case, two container bodies are provided in succession. Moreover, the upper surface part of the side wall part used as a partition may be heat-sealable with a cover material, and may not be so.
- the packaging container of the present invention has a protrusion that protrudes downward at a position where the bottom surface portion is substantially planar and can be stacked with another packaging container.
- the bottom surface portion substantially flat (horizontal) in this manner, the contents can be easily packed and the contents can be prevented from being displaced.
- a plurality of packaging containers cannot be stacked up and down simply by making the bottom surface portion substantially flat, but a plurality of packaging containers can be stacked by providing a protrusion at a predetermined position of the bottom surface portion. .
- the protrusions are provided, for example, at the four corners of the bottom surface so as to protrude downward from the bottom surface to an extent corresponding to the height difference between the highest position and the lowest position of the upper end of the side wall.
- size which provide the said projection part are not limited to this, What is necessary is just to be provided so that it can be piled up with another packaging container.
- the lower edge part of the said protrusion part (65) is a substantially the same shape as the corresponding upper edge part of a side wall part (62) (63).
- the corresponding upper edge portion of the side wall portions (62) and (63) refers to the upper edge portion above the side wall portions (62) and (63) where the protrusions (65) are provided.
- the protrusion (65) below the side wall (62) having a trapezoidal upper edge is inclined so as to be parallel to the inclination of the upper edge (FIG. 7 (b)).
- the protrusion (65) below the side wall (63) having a horizontal upper edge is horizontal so as to be parallel to the upper edge (FIG. 7 (c)).
- the bottom surface portion (61) is substantially flat (horizontal), and has a protruding portion (65) protruding downward at a position where it can be stacked with another packaging container. 61) There is a space below. This space makes it possible to stack with other packaging containers, and at the same time makes it easier to pick up the packaging containers. In addition, as described above, the heating unevenness of the food can be suppressed when heated in the microwave oven.
- the packaging container of the present invention has a function in which the lid material automatically opens the steam hole provided in the lid material by the pressure of the steam generated when the contents of the packaging container are heated by a microwave oven. Is preferred. Thereby, it can heat with a microwave oven, without peeling a part of film or sheet
- a lid material for example, a film used in Seiro Pack (registered trademark) can be used (see Japanese Patent No. 4,175,583).
- At least a part of the flange and the lid member of the heat-sealed container body has a lower sealing strength than the other parts, and the container is contained in the packaging container. It is also preferable to have a function of peeling and opening with the pressure of steam generated when an object is heated in a microwave oven. In order to do this, for example, the width of a part of the flange provided on the peripheral edge of the side wall of the container body may be narrower than the width of the other part.
- a packaged product such as a lunch box that contains foodstuffs in the packaging container of the present invention is easy to visually recognize the foodstuffs that are the contents, and is excellent in three-dimensional appearance. Furthermore, since the packaging container is sealed, it is excellent in hygiene and the expiration date can be extended.
- the manufacturing method of a packaging container according to the present invention is a manufacturing method of a packaging container including a step of transferring a plurality of container main bodies side by side and continuously heat-sealing a lid material on a flange of the container main body.
- the container body is disposed and transported so that a pair of side wall portions facing each other is perpendicular to the transport direction of the container body.
- a lid member made of a film or sheet is fed from a feed roll and supplied to the upper side of the container body via a dancer roll.
- the lid is formed in the shape of the upper edge of the pair of side wall portions facing the container body. It is preferably deformed into substantially the same shape. In order to do this, a plate having substantially the same shape as the shape of the upper edge of the pair of side walls facing the container body may be brought into contact with the lid member. And the said cover material is heat-sealed to the flange of the said container main body using a heat seal block. Thereby, the packaging container of the said invention can be manufactured continuously.
- the packaging container manufacturing apparatus includes: a means for conveying a plurality of container bodies side by side; a means for feeding the lid material from a feed roll to supply the container body to the upper side of the container body; and a means for heat-sealing the lid material on the flange of the container body.
- a means for conveying a plurality of container bodies side by side a means for feeding the lid material from a feed roll to supply the container body to the upper side of the container body
- a means for heat-sealing the lid material on the flange of the container body Have.
- the means for transporting the container body the container body is disposed and transported so that the pair of side wall portions facing each other are perpendicular to the transport direction.
- the said cover material is supplied to the upper side of a container main body via a dancer roll.
- the plate is provided in order to deform the lid material into a shape substantially the same as the shape of the upper end side of the pair of side wall portions facing the container body.
- the means for heat sealing the lid material is provided with a heat seal block for heat sealing the lid material to the flange of the container body.
- the manufacturing method of the packaging container which concerns on this invention performs the heat seal with the flange of the said container main body, and the said cover material within a vacuum chamber.
- the inside of the packaging container can be controlled to, for example, a nitrogen atmosphere, a nitrogen / carbon dioxide atmosphere, a nitrogen / carbon dioxide / oxygen atmosphere, or the like.
- the vacuum chamber has a chamber main body and a chamber lid that contacts the chamber main body. The shape of the upper edge of the pair of side walls facing the container main body and the corresponding upper end of the side wall of the chamber main body It is possible to use a vacuum chamber having a shape similar to that of the side.
- a cradle for the container body is provided on the chamber body side.
- variety of a cover material is wider than the width
- the vacuum chamber When the vacuum chamber is used in the method for manufacturing a packaging container of the present invention, first, the container body that has been transported is mounted on a cradle, and the lid supplied to the upper side of the container body is a chamber lid and a chamber. Insert between the main body. Then, the vacuum chamber is sealed, the inside of the vacuum chamber is evacuated and filled with a filling gas, and the pressure is adjusted. Thereafter, the flange of the container body and the lid material are heat sealed by a heat seal block provided on the chamber lid side. Finally, the cover material outside the flange of the packaging container is removed by means such as a cutter.
- the packaging container manufacturing method using the vacuum chamber can be performed by a packaging container manufacturing apparatus including the vacuum chamber.
- a plurality of container main bodies are arranged and conveyed.
- the container body is disposed and transported so that the pair of opposing side wall portions are parallel to the transport direction of the container body.
- the lid material is fed from a feed roll and supplied to the upper side of the container body via a dancer roll.
- the slack of the lid material generated between the feeding of the lid material and heat sealing to the flange of the container body is corrected and adjusted by the dancer roll or another dancer roll different from the dancer roll.
- the said cover material can be made to follow the shape of the edge
- the packaging container of the said this invention can be continuously manufactured by heat-sealing the said cover material to the flange of the said container main body using a heat seal block.
- the manufacturing apparatus as a conveying means for conveying a plurality of container main bodies side by side, arranges and conveys the pair of opposing side wall portions parallel to the conveying direction of the container main body. Have means. Moreover, it has a means which feeds the said cover material from a delivery roll, and supplies it to the upper side of the said container main body via a dancer roll. Then, the slack of the lid material that occurs during the period from the feeding of the lid material to the flange of the container main body is corrected and adjusted using the dancer roll or another dancer roll different from the dancer roll. Have means.
- the said cover material can be made to follow the shape of the edge
- heat sealing between the flange of the container body and the lid member can be performed in a vacuum chamber, thereby enabling MAP (Modified Atmosphere Packaging).
- MAP Modified Atmosphere Packaging
- a vacuum chamber having a chamber main body and a chamber lid in contact with the chamber main body, and a contact surface between the chamber lid and the chamber main body being a horizontal plane can be used.
- a container body cradle is provided on the chamber body side as in the case of the vacuum chamber described above, and the width of the lid member is wider than the width of the container body, and It is preferably narrower than the width of the vacuum chamber.
- a case where a vacuum chamber in which the contact surface between the chamber lid and the chamber body is a horizontal surface is used will be described below.
- the container body is placed and transported so that a pair of side wall portions facing each other are parallel to the transport direction of the container body, and the container body transported to a predetermined position is mounted on a receiving base.
- the lid material supplied with the slack adjusted by the dancer roll is sandwiched between the chamber lid and the chamber body.
- it is the same as the above-described method, and it is only necessary to deaerate the inside of the vacuum chamber, fill the gas, adjust the pressure, and heat seal the flange of the container body and the lid.
- Such a packaging container manufacturing method is implemented by a packaging container manufacturing apparatus in which a vacuum chamber in which a contact surface between the chamber lid and the chamber body is a horizontal surface is applied to the manufacturing apparatus according to another aspect of the present invention. Can do.
- the heat seal block since a heater is embedded in the heat seal block, it is difficult to process the heat seal block into a complicated shape.
- the shape of the upper edge of the pair of side walls facing each other as in the present invention corresponds to the flange of a packaging container having a triangular roof shape, a trapezoidal shape, a square shape, or the like.
- a heat seal block that can be divided into right and left with the apex portion as a boundary may be used.
- a heat seal block that can be divided into three parts, a flat part and inclined parts on both sides thereof, is used, and the angle of each apex part is adjusted and joined. Good.
- each sheet base paper is attached to each container body. It is possible to employ a manufacturing method and a manufacturing apparatus that cover and heat-seal.
- FIG. 8 An example of the configuration of the packaging container manufacturing apparatus according to the present invention is shown in FIG.
- the apparatus shown in FIG. 8 heats the lid material to the container body in which the shape of the bottom surface portion is a quadrangle and the pair of side wall portions facing each other is a triangular roof shape and the other pair of side wall portions are rectangular. It is an example of the apparatus which seals.
- the container body is transported by placing the pair of opposing side walls of the triangular roof shape at right angles to the transport direction of the container body. And it is an apparatus which heat-seals a cover material to the flange of a container main body using a heat seal block.
- the container body (701) has a pair of opposing side walls having a triangular roof shape on the conveyor (703) so as to be perpendicular to the transport direction of the container body. ) Are transported side by side.
- a cover material (702) made of a film or a sheet is fed from a feed roll (704) and sent through a dancer roll (705).
- a plate (not shown) substantially the same as the triangular roof shape of the pair of side wall portions facing each other of the container main body is applied to the lid member to adjust the shape of the lid member.
- the flange of the container main body and the lid member are sandwiched between the cradle (707) provided at the lower part of the container main body and the heat seal block (708) provided above the pedestal and heat-welded.
- the shapes of the cradle and the heat seal block may be appropriately changed according to the shape of the packaging container to be manufactured.
- the lid material is cut at a slightly outer portion of the flange of the container body to complete the packaging container of the present invention.
- the lid material may be cut by a cutter (709) arranged in accordance with the shape of the upper surface portion of the packaging container, and the shape of the cutter may be appropriately changed according to the shape of the packaging container.
- the finished packaging container (710) is collected by a conveyor (711), and the cut out lid member (712) is sent as it is through a roll and collected by winding.
- FIG. 9 is a diagram showing an example of the configuration of the vacuum chamber.
- the vacuum chamber includes a chamber main body (751) and a chamber lid (752) that can come into contact with the chamber main body (751).
- the chamber body (751) is provided with a container cradle (753) on which the container body is mounted.
- Heat sealing between the flange of the container body and the lid material is performed in this vacuum chamber.
- the lid material is applied with a plate as shown in the first embodiment, and the upper end of the pair of side wall portions of the container body facing each other. It is conveyed while being deformed into the shape of the side. For this reason, it is preferable that the shape of the upper end side of the pair of side wall portions facing each other and the shape of the upper end side of the corresponding side wall portion of the chamber body (751) are similar.
- a vacuum chamber including such a chamber body (751) and a chamber lid (752) that can come into contact with the chamber body, the flange and lid of the container body in the vacuum chamber without wrinkling the lid material. It becomes possible to heat-seal the material.
- the width of the lid member is wider than the width of the container body in the short direction and narrower than the width of the vacuum chamber in the short direction. Due to such a width of the lid material, when the lid material is sandwiched between the chamber body (751) and the chamber lid (752), both ends in the width direction of the lid material are in contact with the vacuum chamber in the vacuum chamber. Therefore, a gap is formed, and the internal space of the chamber main body (751) portion and the internal space of the chamber lid (752) portion are electrically connected to perform deaeration and gas replacement.
- the container main body is mounted on the container cradle (753) of the chamber main body (751), and a plate is placed between the chamber main body (751) and the chamber lid (752) to confront each other.
- a lid member transformed into the shape of the upper edge of the pair of side wall portions is supplied.
- a vacuum chamber is sealed by sandwiching a lid material between the chamber body (751) and the chamber lid (752).
- the filling gas may be appropriately selected from nitrogen gas, nitrogen / carbon dioxide mixed gas, nitrogen / carbon dioxide / oxygen mixed gas, and the like.
- the heat seal block (754) provided on the chamber lid (752) side is lowered to heat seal the flange of the container body and the lid material.
- the packaging chamber according to the present invention can be obtained by opening the vacuum chamber and removing the cover material outside the flange of the packaging container.
- the process after the vacuum chamber is opened may be performed in the same manner as in the first embodiment, and the cover member outside the flange can be removed by the above-described cutter (709) or the like.
- the lid member may be provided with a part that can be separated along the shape of the flange of the container body in advance.
- FIG. 10 shows another example of the configuration of the packaging container manufacturing apparatus according to the present invention.
- the apparatus shown in FIG. 10 has a container body in which the shape of the bottom surface portion is a quadrangle and the pair of side wall portions facing each other is a triangular roof shape, and the other set of side wall portions is a rectangular shape. It is an example of the apparatus which arrange
- the container body (801) has a pair of opposing side walls having a triangular roof shape that are parallel to the transport direction of the container body on the conveyor (803). ) Are transported side by side.
- a cover member (802) made of a film or a sheet is fed from a feed roll (804) and sent through a dancer roll (805).
- the slack of the lid material that occurs between the feeding of the lid material and the heat sealing to the flange of the container body is performed. Correction and adjustment are performed by the dancer roll (806).
- the lid material can be adapted to the shape of the side of the upper end portion of the pair of side walls facing each other, and the flange of the container body and the lid material It is possible to prevent the cover material from being wrinkled when heat-sealing.
- the flange of the container main body and the lid material are sandwiched between the cradle (807) provided at the lower part of the container main body and the heat seal block (808) provided thereabove, and are thermally welded.
- the shapes of the cradle and the heat seal block may be appropriately changed according to the shape of the packaging container to be manufactured.
- the lid material is cut at a slightly outer portion of the flange of the container body to complete the packaging container of the present invention.
- the lid material may be cut by a cutter (809) arranged in accordance with the shape of the upper surface portion of the packaging container, and the shape of the cutter may be appropriately changed according to the shape of the packaging container.
- the finished packaging container (810) is collected by the conveyor (811), and the cut lid member (812) is sent as it is through the roll and collected by winding.
- FIG. 11 is a diagram showing an example of the configuration of the vacuum chamber.
- the vacuum chamber includes a chamber main body (851) and a chamber lid (852) that can come into contact with the chamber body, and a sealed vacuum chamber is formed by bringing them into contact with each other.
- the contact surface on which the chamber body (851) and the chamber lid (852) contact is a horizontal surface.
- a lid member is supplied between the chamber body (851) and the chamber lid (852), and the width of the lid member is wider than the longitudinal width of the container body and the longitudinal direction of the vacuum chamber. It is narrower than the width.
- the lid member is sandwiched between the chamber body (851) and the chamber lid (852), a gap is formed in the vacuum chamber without both ends in the width direction of the lid member coming into contact with the vacuum chamber.
- the internal space of the (851) portion and the internal space of the chamber lid (852) portion are brought into conduction so that deaeration and gas replacement can be performed.
- the chamber body (851) is provided with a container cradle (853) on which the container body is mounted, and the chamber lid (852) is provided with a heat seal block (854).
- the container body is mounted on the container cradle (853) provided in the chamber body (851), and the lid is placed between the chamber body (851) and the chamber lid (852). Supply materials. Then, the chamber body (851) and the chamber lid (852) are closed to sandwich the lid material, and the vacuum chamber is sealed. In this state, the inside of the vacuum chamber is evacuated to form a vacuum, and then a filling gas is filled to adjust the pressure.
- the filling gas may be appropriately selected from nitrogen gas, nitrogen / carbon dioxide mixed gas, nitrogen / carbon dioxide / oxygen mixed gas, and the like.
- the heat seal block (854) provided on the chamber lid (852) side is lowered to heat seal the flange of the container body and the lid material.
- the packaging chamber according to the present invention can be obtained by opening the vacuum chamber and removing the cover material outside the flange of the packaging container.
- the process after the vacuum chamber is opened may be performed in the same manner as in the third embodiment, and the cover member outside the flange can be removed by the above-described cutter (809) or the like. It is also preferable to previously provide the lid member with a portion that can be separated along the shape of the flange of the container body.
- an example of an apparatus for manufacturing a packaging container having a pair of side wall portions facing each other having a triangular roof shape has been described.
- the shape of the side is an upwardly convex arc shape, trapezoidal shape, square shape, or the like, it can be manufactured by appropriately changing the shapes of the plate, the cradle, the heat seal block, and the cutter. Further, by making it possible to divide and join the heat seal block as described above, it is possible to easily form a heat seal block that matches the shape of the packaging container.
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Abstract
Description
例えば、シートからなる蓋材を内嵌合または外嵌合で容器本体の開口部にはめ込み、シュリンクフィルムで容器本体と蓋材とを覆う形態のものがある。このような形態の包装容器の場合には、容器本体と蓋材の全体をシュリンクフィルムで覆うものと、容器本体と蓋材の一部を帯状に覆うものとがある。また、シュリンクフィルムの代わりに粘着テープによって容器本体と蓋材とを固定する形態のものもある。
前記蓋材はフィルムまたはシートからなり、
対峙する一組の側壁部が同一形状であって、該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部の上端部よりも高い位置にあることを特徴とする包装容器。
(2)前記蓋材は、原反ロールから繰り出されるかまたは枚葉原紙として供給される時には平面状のフィルムまたはシートであって、ヒートシール前またはヒートシール時に容器本体の上端縁の形状に沿うように変形されてヒートシールされてなることを特徴とする上記(1)に記載の包装容器。
(3)前記側壁部の上端部の少なくとも一部が他の側壁部の上端部よりも高い位置にある側壁部の上端の辺の形状が、上方向に凸の円弧、三角形または台形であることを特徴とする上記(1)又は(2)に記載の包装容器。
(4)前記高い位置を有する側壁部の上縁部と底面側の下縁部とが略同一形状であることを特徴とする上記(1)~(3)のいずれかに記載の包装容器。
(5)前記底面部が、略平面状であって、かつ、他の包装容器と積み重ね可能となる位置に下方向に突き出した突起部を有することを特徴とする上記(1)~(3)のいずれかに記載の包装容器。
(6)前記突起部の下縁部が、前記側壁部の対応する上縁部と略同一形状であることを特徴とする上記(5)に記載の包装容器。
(7)前記蓋材は、前記包装容器の収容物を電子レンジで加熱した際に発生する蒸気の圧力で蓋材に設けた蒸気孔が自動開孔する機能を有することを特徴とする上記(1)~(6)のいずれかに記載の包装容器。
(8)前記ヒートシールされた容器本体のフランジと蓋材との少なくとも一部が、他の部分よりもシール強度が弱く、前記包装容器内の収容物を電子レンジで加熱した際に発生する蒸気の圧力で剥離して開孔する機能を有することを特徴とする上記(1)~(6)のいずれかに記載の包装容器。
(9)上記(1)~(8)のいずれかに記載の包装容器に食材を収容してなることを特徴とする包装製品。
(10)底面部と側壁部とを有し前記側壁部の上端部周縁にフランジを有する容器本体を複数並べて搬送し、前記容器本体のフランジに蓋材を連続的にヒートシールする工程を含む包装容器の製造方法であって、
前記容器本体は、対峙する一組の側壁部が同一形状であって該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部よりも高い位置にあり、
前記容器本体を前記対峙する一組の側壁部が容器本体の搬送方向に対して直角になるように配置して搬送し、
平面状のフィルムまたはシートからなる前記蓋材を繰り出しロールから繰り出してダンサロールを介して送り、
前記対峙する一組の側壁部の上端の辺の形状と略同一のプレートを前記蓋材に当てて、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールすることを特徴とする包装容器の製造方法。
(11)前記容器本体のフランジと前記蓋材とのヒートシールを真空チャンバー内で行い、
前記真空チャンバーはチャンバー本体とこれと当接するチャンバー蓋とを有し、前記容器本体の対峙する一組の側壁部の上端の辺の形状とこれに対応するチャンバー本体の側壁部の上端の辺の形状とが相似形状である真空チャンバーであり、
前記チャンバー本体側には前記容器本体の受け台が設けられており、
前記蓋材の幅は、前記容器本体の幅よりも広く、かつ前記真空チャンバーの幅よりも狭いものであって、
前記容器本体を前記受け台に装着し、
前記プレートを当てられて前記対峙する一組の側壁部の上端の辺の形状に変形された前記蓋材を、前記チャンバー蓋と前記チャンバー本体とで挟み込んで真空チャンバーを密閉し、
前記真空チャンバー内を脱気して充填用ガスを充填し、圧力を調整した後に、
前記チャンバー蓋側に設けられたヒートシールブロックによって前記容器本体のフランジと前記蓋材とをヒートシールし、
包装容器のフランジの外側の前記蓋材を除去することを特徴とする上記(10)に記載の包装容器の製造方法。
(12)底面部と側壁部とを有し前記側壁部の上端部周縁にフランジを有する容器本体を複数並べて搬送し、前記容器本体のフランジに蓋材を連続的にヒートシールする工程を含む包装容器の製造方法であって、
前記容器本体は、対峙する一組の側壁部が同一形状であって該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部よりも高い位置にあり、
前記容器本体を前記対峙する一組の側壁部が容器本体の搬送方向に対して平行になるように配置して搬送し、
平面状のフィルムまたはシートからなる前記蓋材を繰り出しロールから繰り出してダンサロールを介して送り、
前記蓋材を前記対峙する一組の側壁部の上端部の辺の形状に沿わせるために、蓋材の繰り出しから前記容器本体のフランジにヒートシールするまでの間に発生する蓋材の弛みを前記ダンサロール又は前記ダンサロールとは別のもう一つのダンサロールで補正調節しつつ、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールすることを特徴とする包装容器の製造方法。
(13)前記容器本体のフランジと前記蓋材とのヒートシールを真空チャンバー内で行い、
前記真空チャンバーはチャンバー本体とこれと当接するチャンバー蓋とを有し、チャンバー蓋とチャンバー本体との当接面が水平面となる真空チャンバーであり、
前記チャンバー本体側には前記容器本体の受け台が設けられており、
前記蓋材の幅は、前記容器本体の幅よりも広く、かつ前記真空チャンバーの幅よりも狭いものであって、
前記容器本体を前記受け台に装着し、
前記蓋材を、前記チャンバー蓋と前記チャンバー本体とで挟み込んで真空チャンバーを密閉し、
前記真空チャンバー内を脱気して充填用ガスを充填し、圧力を調整した後に、
前記チャンバー蓋側に設けられたヒートシールブロックによって前記容器本体のフランジと前記蓋材とをヒートシールし、
包装容器のフランジの外側の前記蓋材を除去することを特徴とする上記(12)に記載の包装容器の製造方法。
(14)前記ヒートシールブロックが、分割及び接合が可能であることを特徴とする上記(10)~(13)のいずれかに記載の包装容器の製造方法。
(15)底面部と側壁部とを有し前記側壁部の上端部周縁にフランジを有する容器本体を複数並べて搬送し、前記容器本体のフランジに蓋材を連続的にヒートシールする手段を有する包装容器の製造装置であって、
前記容器本体は、対峙する一組の側壁部が同一形状であって該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部よりも高い位置にあり、
前記容器本体を前記対峙する一組の側壁部が容器本体の搬送方向に対して直角になるように配置して搬送し、
平面状のフィルムまたはシートからなる前記蓋材を繰り出しロールから繰り出してダンサロールを介して送り、
前記対峙する一組の側壁部の上端の辺の形状と略同一のプレートを前記蓋材に当てて、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールすることを特徴とする包装容器の製造装置。
(16)前記容器本体のフランジと前記蓋材とのヒートシールを真空チャンバー内で行い、
前記真空チャンバーはチャンバー本体とこれと当接するチャンバー蓋とを有し、前記容器本体の対峙する一組の側壁部の上端の辺の形状とこれに対応するチャンバー本体の側壁部の上端の辺の形状とが相似形状である真空チャンバーであり、
前記チャンバー本体側には前記容器本体の受け台が設けられており、
前記蓋材の幅は、前記容器本体の幅よりも広く、かつ前記真空チャンバーの幅よりも狭いものであって、
前記容器本体を前記受け台に装着し、
前記プレートを当てられて前記対峙する一組の側壁部の上端の辺の形状に変形された前記蓋材を、前記チャンバー蓋と前記チャンバー本体とで挟み込んで真空チャンバーを密閉し、
前記真空チャンバー内を脱気して充填用ガスを充填し、圧力を調整した後に、
前記チャンバー蓋側に設けられたヒートシールブロックによって前記容器本体のフランジと前記蓋材とをヒートシールし、
包装容器のフランジの外側の前記蓋材を除去することを特徴とする上記(15)に記載の包装容器の製造装置。
(17)底面部と側壁部とを有し前記側壁部の上端部周縁にフランジを有する容器本体を複数並べて搬送し、前記容器本体のフランジに蓋材を連続的にヒートシールする手段を有する包装容器の製造装置であって、
前記容器本体は、対峙する一組の側壁部が同一形状であって該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部よりも高い位置にあり、
前記容器本体を前記対峙する一組の側壁部が容器本体の搬送方向に対して平行になるように配置して搬送し、
平面状のフィルムまたはシートからなる前記蓋材を繰り出しロールから繰り出してダンサロールを介して送り、
前記蓋材を前記対峙する一組の側壁部の上端部の辺の形状に沿わせるために、蓋材の繰り出しから前記容器本体のフランジにヒートシールするまでの間に発生する蓋材の弛みを前記ダンサロール又は前記ダンサロールとは別のもう一つのダンサロールで補正調節しつつ、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールする
ことを特徴とする包装容器の製造装置。
(18)前記容器本体のフランジと前記蓋材とのヒートシールを真空チャンバー内で行い、
前記真空チャンバーはチャンバー本体とこれと当接するチャンバー蓋とを有し、チャンバー蓋とチャンバー本体との当接面が水平面となる真空チャンバーであり、
前記チャンバー本体側には前記容器本体の受け台が設けられており、
前記蓋材の幅は、前記容器本体の幅よりも広く、かつ前記真空チャンバーの幅よりも狭いものであって、
前記容器本体を前記受け台に装着し、
前記蓋材を、前記チャンバー蓋と前記チャンバー本体とで挟み込んで真空チャンバーを密閉し、
前記真空チャンバー内を脱気して充填用ガスを充填し、圧力を調整した後に、
前記チャンバー蓋側に設けられたヒートシールブロックによって前記容器本体のフランジと前記蓋材とをヒートシールし、
包装容器のフランジの外側の前記蓋材を除去することを特徴とする上記(17)に記載の包装容器の製造装置。
(19)前記ヒートシールブロックが、分割及び接合が可能であることを特徴とする上記(15)~(18)のいずれかに記載の包装容器の製造装置。
前述のように従来の包装容器は容器本体の開口部周縁のフランジが同一面上に設けられていて平坦な構造をしていた。これに対し、本発明の包装容器は、対峙する一組の側壁部が同一形状であって、該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部の上端部よりも高い位置にあるため、フランジが同一平面上にないという構造をしており、包装容器の密封性を保ちつつ立体感を持たせることができる。
なお、前記一組の側壁部の上端部において、前記他の一組の対峙する側壁部の上端部よりも高い位置にある部分の高さは、本発明の包装容器を載置した場合に載置面からの高さが、前記他の一組の対峙する側壁部の上端部の載置面からの高さよりも1.2倍~2.0倍高いことが好ましい。
従来の包装容器は、シートを成形して得た凸型又は凹型の蓋を容器本体に外嵌合あるいは内嵌合させることが通常であった。これに対し、本発明の包装容器は、上記のように平面状のフィルムまたはシートからなる蓋材を容器本体の上端縁の形状に合わせて変形してヒートシールすることから、アウトラインでの蓋材成形が不要である。また、シュリンクフィルムや粘着テープといった余分な部材も不要であるため廃棄物を減らすことができ、更に、軽量化や環境対応にも適している。
図4に示す容器本体は、対峙する一組の側壁部(42)の上縁部と底面側の下縁部の形状を上方向に凸の円弧形にして、残る他の一組の側壁部(43)を長方形にしたものである。図5に示す容器本体は、対峙する一組の側壁部(52)の上縁部と底面側の下縁部の形状を台形にし、残る他の一組の側壁部(53)を長方形にしたものである。図2~図5に示す容器本体の場合には、底面部の空間に手を入れやすくなるため、包装容器を持ち易くなり、内容物の食材を食べ易くなる。
このような蓋材としては、例えば、せいろパック(登録商標)に使用されているフィルムを利用することができる(特許第4817583号公報参照)。
前記本発明に係る包装容器の製造方法の一態様においては、前記容器本体の対峙する一組の側壁部が容器本体の搬送方向に対して直角になるように容器本体を配置して搬送する。
フィルム又はシートからなる蓋材は、繰り出しロールから繰り出されてダンサロールを介して前記容器本体の上側に供給される。また、前記蓋材にシワを発生させずに蓋材と容器本体のフランジとをヒートシールさせるためには、前記蓋材が、前記容器本体の対峙する一組の側壁部の上端の辺の形状と略同一形状に変形させられていることが好ましい。このようにするためには、前記容器本体の対峙する一組の側壁部の上端の辺の形状と略同一形状のプレートを前記蓋材に接触させればよい。
そして、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールする。これにより前記本発明の包装容器を連続的に製造することができる。
前記包装容器の製造装置は、容器本体を複数並べて搬送する手段と、蓋材を繰り出しロールから繰り出して容器本体の上側に供給する手段と、容器本体のフランジに蓋材をヒートシールする手段とを有する。
容器本体を搬送する手段においては、容器本体の対峙する一組の側壁部が搬送方向に対して直角となるように容器本体を配置して搬送する。前記蓋材はダンサロールを介して容器本体の上側に供給される。また、蓋材を容器本体の対峙する一組の側壁部の上端の辺の形状と略同一の形状に変形させるために、前記のプレートが設けられている。
蓋材をヒートシールする手段には、容器本体のフランジに蓋材をヒートシールするためにヒートシールブロックが設けられている。
前記真空チャンバーとしては、チャンバー本体と、これと当接するチャンバー蓋とを有し、前記容器本体の対峙する一組の側壁部の上端の辺の形状とこれに対応するチャンバー本体の側壁部の上端の辺の形状とが相似形状である真空チャンバーを用いることができる。また、前記チャンバー本体側には容器本体の受け台が設けられていることが好ましい。真空チャンバーを用いる場合、蓋材の幅は、容器本体の幅よりも広く、かつ真空チャンバーの幅よりも狭いことが好ましい。
前記真空チャンバーを用いる包装容器の製造方法は、前記真空チャンバーを備える包装容器の製造装置によって実施をすることができる。
まず、前記の製造方法と同様に、容器本体を複数並べて搬送する。このとき、前記対峙する一組の側壁部が容器本体の搬送方向に対して平行になるように前記容器本体を配置して搬送する。
前記蓋材は、繰り出しロールから繰り出してダンサロールを介して前記容器本体の上側に供給する。このとき、蓋材の繰り出しから前記容器本体のフランジにヒートシールするまでの間に発生する蓋材の弛みを、前記ダンサロール又は前記ダンサロールとは別のもう一つのダンサロールで補正調節する。これにより、前記蓋材を前記対峙する一組の側壁部の上端部の辺の形状に沿わせることができる。
そして、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールすることで、前記本発明の包装容器を連続的に製造することができる。
本発明の別の態様に係る製造装置は、容器本体を複数並べて搬送する搬送手段として、前記対峙する一組の側壁部が容器本体の搬送方向に対して平行になるように配置して搬送する手段を有する。
また、前記蓋材を繰り出しロールから繰り出してダンサロールを介して前記容器本体の上側に供給する手段を有する。そして、蓋材の繰り出しから前記容器本体のフランジにヒートシールするまでの間に発生する蓋材の弛みを、前記ダンサロール又は前記ダンサロールとは別のもう一つのダンサロールを用いて補正調節する手段を有する。これにより、前記蓋材を前記対峙する一組の側壁部の上端部の辺の形状に沿わせることができる。
更に、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールする手段を有する。
このときの真空チャンバーとしては、チャンバー本体とこれと当接するチャンバー蓋とを有し、チャンバー蓋とチャンバー本体との当接面が水平面となる真空チャンバーを用いることができる。また、この真空チャンバーの場合にも、前述の真空チャンバーと同様にチャンバー本体側に容器本体の受け台が設けられていることが好ましく、蓋材の幅は、容器本体の幅よりも広く、かつ真空チャンバーの幅よりも狭いことが好ましい。
まず、容器本体の対峙する一組の側壁部が容器本体の搬送方向に対して平行になるように前記容器本体を配置して搬送し、所定位置に搬送された容器本体を受け台に装着する。また、ダンサロールによって弛みが調節されて供給された蓋材を、チャンバー蓋とチャンバー本体とで挟み込む。後は、前述の方法と同様であり、真空チャンバー内の脱気、ガスの充填、圧力の調整を行い、容器本体のフランジと蓋材とをヒートシールすればよい。
このような包装容器の製造方法は、前記本発明の別の態様に係る製造装置に、前記チャンバー蓋とチャンバー本体との当接面が水平面となる真空チャンバーを適用した包装容器の製造装置によって実施をすることができる。
このため、前記ヒートシールブロックは分割及び接合が可能となっていることが好ましい。例えば、三角屋根形やへの字形の包装容器を製造する場合には、頂点部分を境に左右に分割可能なヒートシールブロックを用いればよい。このようなヒートシールブロックを接合して用いることで接合部分の角度合わせが容易であり、包装容器の形状と対応するヒートシールブロックを簡便に得ることが出来る。同様に、台形型の包装容器を製造する場合には、平坦部とその両側の傾斜部との3つ部分に分割可能なヒートシールブロックを用い、各頂点部分の角度を調節して接合すればよい。
本発明に係る包装容器の製造装置の構成の一例を図8に示す。図8に示す装置は、底面部の形状が四角形であって対峙する一組の側壁部の形状が三角屋根形であり残る他の一組の側壁部が長方形である容器本体に蓋材をヒートシールする装置の例である。容器本体は、前記三角屋根形の対峙する一組の側壁部が容器本体の搬送方向に対して直角になるように配置して搬送される。そして、ヒートシールブロックを用いて容器本体のフランジに蓋材をヒートシールする装置である。
出来上がった包装容器(710)はコンベア(711)により回収され、切り抜かれた蓋材(712)はそのままロールを介して送られ、巻き取ることにより回収される。
前記実施の形態1に示した包装容器の製造装置において、容器本体のフランジと蓋材とのヒートシールを真空チャンバー内で行う構成の製造装置の例について以下に説明する。
図9は真空チャンバーの構成の一例を示す図である。図9に示すように真空チャンバーはチャンバー本体(751)と、これに当接可能なチャンバー蓋(752)とを備えており、両者を当接することで密閉された真空チャンバーが形成される。また、チャンバー本体(751)には前記容器本体が装着される容器受け台(753)が設けられている。
なお、真空チャンバーを開放後の工程は実施の形態1と同様に行えばよく、フランジの外側の蓋材の除去は前述のカッター(709)等により行うことが可能である。また、実施の形態1と同様に蓋材には容器本体のフランジの形状に沿って切り離し可能な部分を事前に設けておくことも可能である。
本発明に係る包装容器の製造装置の構成の別の一例を図10に示す。図10に示す装置は、底面部の形状が四角形であって対峙する一組の側壁部の形状が三角屋根形であり残る他の一組の側壁部が長方形である容器本体を、前記三角屋根形の対峙する一組の側壁部が容器本体の搬送方向に対して平行になるように配置して搬送する装置の例である。
出来上がった包装容器(810)はコンベア(811)により回収され、切り抜かれた蓋材(812)はそのままロールを介して送られ、巻き取ることにより回収される。
前記実施の形態3に示した包装容器の製造装置において、容器本体のフランジと蓋材とのヒートシールを真空チャンバー内で行う構成の製造装置の例について説明する。
図11は真空チャンバーの構成の一例を示す図である。図11に示すように真空チャンバーはチャンバー本体(851)と、これに当接可能なチャンバー蓋(852)とを備えており、両者を当接することで密閉された真空チャンバーが形成される。図11に示すようにチャンバー本体(851)とチャンバー蓋(852)とが当接する当接面は水平面となっている。
なお、真空チャンバーを開放後の工程は実施の形態3と同様に行えばよく、フランジの外側の蓋材の除去は前述のカッター(809)等により行うことが可能である。容器本体のフランジの形状に沿って切り離し可能な部分を事前に蓋材に設けておくことも好ましい。
12、22、32、42、52、62 対峙する一組の側壁部
13、23、33、43、53、63 他の一組の対峙する側壁部
14、24、34、44、54、64 フランジ
65 突起部
701、801 容器本体
702、802 蓋材
703、803 コンベア
704、804 繰り出しロール
705、805 ダンサロール
706 蓋材の角度を調整する治具
806 ダンサロール
707、807 受け台
708、808 ヒートシールブロック
709、809 カッター
710、810 包装容器
711、811 コンベア
712、812 切り抜かれた蓋材
751、851 チャンバー本体
752、852 チャンバー蓋
753、853 容器受け台
754、854 ヒートシールブロック
91、101、111 底面部
92、102、112 1つの側壁部
94、104、114 フランジ
120 従来の製造装置
Claims (19)
- 底面部と側壁部とを有し前記側壁部の上端部周縁にフランジを有する容器本体と、前記フランジにヒートシールされた蓋材とを有する包装容器であって、
前記蓋材はフィルムまたはシートからなり、
対峙する一組の側壁部が同一形状であって、該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部の上端部よりも高い位置にあることを特徴とする包装容器。 - 前記蓋材は、原反ロールから繰り出されるかまたは枚葉原紙として供給される時には平面状のフィルムまたはシートであって、ヒートシール前またはヒートシール時に容器本体の上端縁の形状に沿うように変形されてヒートシールされてなることを特徴とする請求項1に記載の包装容器。
- 前記側壁部の上端部の少なくとも一部が他の側壁部の上端部よりも高い位置にある側壁部の上端の辺の形状が、上方向に凸の円弧、三角形または台形であることを特徴とする請求項1又は2に記載の包装容器。
- 前記高い位置を有する側壁部の上縁部と底面側の下縁部とが略同一形状であることを特徴とする請求項1~3のいずれかに記載の包装容器。
- 前記底面部が、略平面状であって、かつ、他の包装容器と積み重ね可能となる位置に下方向に突き出した突起部を有することを特徴とする請求項1~3のいずれかに記載の包装容器。
- 前記突起部の下縁部が、前記側壁部の対応する上縁部と略同一形状であることを特徴とする請求項5に記載の包装容器。
- 前記蓋材は、前記包装容器の収容物を電子レンジで加熱した際に発生する蒸気の圧力で蓋材に設けた蒸気孔が自動開孔する機能を有することを特徴とする請求項1~6のいずれかに記載の包装容器。
- 前記ヒートシールされた容器本体のフランジと蓋材との少なくとも一部が、他の部分よりもシール強度が弱く、前記包装容器内の収容物を電子レンジで加熱した際に発生する蒸気の圧力で剥離して開孔する機能を有することを特徴とする請求項1~6のいずれかに記載の包装容器。
- 請求項1~8のいずれかに記載の包装容器に食材を収容してなることを特徴とする包装製品。
- 底面部と側壁部とを有し前記側壁部の上端部周縁にフランジを有する容器本体を複数並べて搬送し、前記容器本体のフランジに蓋材を連続的にヒートシールする工程を含む包装容器の製造方法であって、
前記容器本体は、対峙する一組の側壁部が同一形状であって該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部よりも高い位置にあり、
前記容器本体を前記対峙する一組の側壁部が容器本体の搬送方向に対して直角になるように配置して搬送し、
平面状のフィルムまたはシートからなる前記蓋材を繰り出しロールから繰り出してダンサロールを介して送り、
前記対峙する一組の側壁部の上端の辺の形状と略同一のプレートを前記蓋材に当てて、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールすることを特徴とする包装容器の製造方法。 - 前記容器本体のフランジと前記蓋材とのヒートシールを真空チャンバー内で行い、
前記真空チャンバーはチャンバー本体とこれと当接するチャンバー蓋とを有し、前記容器本体の対峙する一組の側壁部の上端の辺の形状とこれに対応するチャンバー本体の側壁部の上端の辺の形状とが相似形状である真空チャンバーであり、
前記チャンバー本体側には前記容器本体の受け台が設けられており、
前記蓋材の幅は、前記容器本体の幅よりも広く、かつ前記真空チャンバーの幅よりも狭いものであって、
前記容器本体を前記受け台に装着し、
前記プレートを当てられて前記対峙する一組の側壁部の上端の辺の形状に変形された前記蓋材を、前記チャンバー蓋と前記チャンバー本体とで挟み込んで真空チャンバーを密閉し、
前記真空チャンバー内を脱気して充填用ガスを充填し、圧力を調整した後に、
前記チャンバー蓋側に設けられたヒートシールブロックによって前記容器本体のフランジと前記蓋材とをヒートシールし、
包装容器のフランジの外側の前記蓋材を除去することを特徴とする請求項10に記載の包装容器の製造方法。 - 底面部と側壁部とを有し前記側壁部の上端部周縁にフランジを有する容器本体を複数並べて搬送し、前記容器本体のフランジに蓋材を連続的にヒートシールする工程を含む包装容器の製造方法であって、
前記容器本体は、対峙する一組の側壁部が同一形状であって該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部よりも高い位置にあり、
前記容器本体を前記対峙する一組の側壁部が容器本体の搬送方向に対して平行になるように配置して搬送し、
平面状のフィルムまたはシートからなる前記蓋材を繰り出しロールから繰り出してダンサロールを介して送り、
前記蓋材を前記対峙する一組の側壁部の上端部の辺の形状に沿わせるために、蓋材の繰り出しから前記容器本体のフランジにヒートシールするまでの間に発生する蓋材の弛みを前記ダンサロール又は前記ダンサロールとは別のもう一つのダンサロールで補正調節しつつ、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールすることを特徴とする包装容器の製造方法。 - 前記容器本体のフランジと前記蓋材とのヒートシールを真空チャンバー内で行い、
前記真空チャンバーはチャンバー本体とこれと当接するチャンバー蓋とを有し、チャンバー蓋とチャンバー本体との当接面が水平面となる真空チャンバーであり、
前記チャンバー本体側には前記容器本体の受け台が設けられており、
前記蓋材の幅は、前記容器本体の幅よりも広く、かつ前記真空チャンバーの幅よりも狭いものであって、
前記容器本体を前記受け台に装着し、
前記蓋材を、前記チャンバー蓋と前記チャンバー本体とで挟み込んで真空チャンバーを密閉し、
前記真空チャンバー内を脱気して充填用ガスを充填し、圧力を調整した後に、
前記チャンバー蓋側に設けられたヒートシールブロックによって前記容器本体のフランジと前記蓋材とをヒートシールし、
包装容器のフランジの外側の前記蓋材を除去することを特徴とする請求項12に記載の包装容器の製造方法。 - 前記ヒートシールブロックが、分割及び接合が可能であることを特徴とする請求項10~13のいずれかに記載の包装容器の製造方法。
- 底面部と側壁部とを有し前記側壁部の上端部周縁にフランジを有する容器本体を複数並べて搬送し、前記容器本体のフランジに蓋材を連続的にヒートシールする手段を有する包装容器の製造装置であって、
前記容器本体は、対峙する一組の側壁部が同一形状であって該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部よりも高い位置にあり、
前記容器本体を前記対峙する一組の側壁部が容器本体の搬送方向に対して直角になるように配置して搬送し、
平面状のフィルムまたはシートからなる前記蓋材を繰り出しロールから繰り出してダンサロールを介して送り、
前記対峙する一組の側壁部の上端の辺の形状と略同一のプレートを前記蓋材に当てて、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールすることを特徴とする包装容器の製造装置。 - 前記容器本体のフランジと前記蓋材とのヒートシールを真空チャンバー内で行い、
前記真空チャンバーはチャンバー本体とこれと当接するチャンバー蓋とを有し、前記容器本体の対峙する一組の側壁部の上端の辺の形状とこれに対応するチャンバー本体の側壁部の上端の辺の形状とが相似形状である真空チャンバーであり、
前記チャンバー本体側には前記容器本体の受け台が設けられており、
前記蓋材の幅は、前記容器本体の幅よりも広く、かつ前記真空チャンバーの幅よりも狭いものであって、
前記容器本体を前記受け台に装着し、
前記プレートを当てられて前記対峙する一組の側壁部の上端の辺の形状に変形された前記蓋材を、前記チャンバー蓋と前記チャンバー本体とで挟み込んで真空チャンバーを密閉し、
前記真空チャンバー内を脱気して充填用ガスを充填し、圧力を調整した後に、
前記チャンバー蓋側に設けられたヒートシールブロックによって前記容器本体のフランジと前記蓋材とをヒートシールし、
包装容器のフランジの外側の前記蓋材を除去することを特徴とする請求項15に記載の包装容器の製造装置。 - 底面部と側壁部とを有し前記側壁部の上端部周縁にフランジを有する容器本体を複数並べて搬送し、前記容器本体のフランジに蓋材を連続的にヒートシールする手段を有する包装容器の製造装置であって、
前記容器本体は、対峙する一組の側壁部が同一形状であって該一組の側壁部の上端部の少なくとも一部が他の一組の対峙する側壁部よりも高い位置にあり、
前記容器本体を前記対峙する一組の側壁部が容器本体の搬送方向に対して平行になるように配置して搬送し、
平面状のフィルムまたはシートからなる前記蓋材を繰り出しロールから繰り出してダンサロールを介して送り、
前記蓋材を前記対峙する一組の側壁部の上端部の辺の形状に沿わせるために、蓋材の繰り出しから前記容器本体のフランジにヒートシールするまでの間に発生する蓋材の弛みを前記ダンサロール又は前記ダンサロールとは別のもう一つのダンサロールで補正調節しつつ、ヒートシールブロックを用いて、前記容器本体のフランジに前記蓋材をヒートシールする
ことを特徴とする包装容器の製造装置。 - 前記容器本体のフランジと前記蓋材とのヒートシールを真空チャンバー内で行い、
前記真空チャンバーはチャンバー本体とこれと当接するチャンバー蓋とを有し、チャンバー蓋とチャンバー本体との当接面が水平面となる真空チャンバーであり、
前記チャンバー本体側には前記容器本体の受け台が設けられており、
前記蓋材の幅は、前記容器本体の幅よりも広く、かつ前記真空チャンバーの幅よりも狭いものであって、
前記容器本体を前記受け台に装着し、
前記蓋材を、前記チャンバー蓋と前記チャンバー本体とで挟み込んで真空チャンバーを密閉し、
前記真空チャンバー内を脱気して充填用ガスを充填し、圧力を調整した後に、
前記チャンバー蓋側に設けられたヒートシールブロックによって前記容器本体のフランジと前記蓋材とをヒートシールし、
包装容器のフランジの外側の前記蓋材を除去することを特徴とする請求項17に記載の包装容器の製造装置。 - 前記ヒートシールブロックが、分割及び接合が可能であることを特徴とする請求項15~18に記載の包装容器の製造装置。
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- 2013-09-02 EP EP13837912.8A patent/EP2902338A4/en not_active Withdrawn
- 2013-09-02 US US14/425,959 patent/US20150217925A1/en not_active Abandoned
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JP2014189336A (ja) * | 2013-03-27 | 2014-10-06 | Multivac Sepp Haggenmueller Gmbh & Co Kg | トレイ封止機及びその操作方法 |
JP2017525631A (ja) * | 2014-08-28 | 2017-09-07 | グラクソスミスクライン・リミテッド・ライアビリティ・カンパニーGlaxoSmithKline LLC | パッケージおよび熱溶着デバイス |
EP3186159A4 (en) * | 2014-08-28 | 2018-04-11 | GlaxoSmithKline LLC | Package and heat sealing device |
US10391717B2 (en) | 2014-08-28 | 2019-08-27 | GlaxoSmithKline, LLC | Package and heat sealing device |
JP2017128389A (ja) * | 2016-01-15 | 2017-07-27 | 大日本印刷株式会社 | 包装容器およびそれに用いる容器本体 |
JP2019077472A (ja) * | 2017-10-25 | 2019-05-23 | 株式会社彫刻プラスト | 包装容器およびその製造方法 |
JP7018622B2 (ja) | 2017-10-25 | 2022-02-14 | 株式会社彫刻プラスト | 包装容器およびその製造方法 |
JP2020050366A (ja) * | 2018-09-25 | 2020-04-02 | 株式会社彫刻プラスト | 包装体の製造方法 |
JP7239141B2 (ja) | 2018-09-25 | 2023-03-14 | 株式会社彫刻プラスト | 包装体の製造方法 |
Also Published As
Publication number | Publication date |
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JP6276187B2 (ja) | 2018-02-07 |
EP2902338A4 (en) | 2016-05-25 |
EP2902338A1 (en) | 2015-08-05 |
US20150217925A1 (en) | 2015-08-06 |
US20170001787A1 (en) | 2017-01-05 |
JPWO2014042025A1 (ja) | 2016-08-18 |
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