TW201033093A - Main container body, packaging container, main container body manufacturing method and manufacturing device - Google Patents

Main container body, packaging container, main container body manufacturing method and manufacturing device Download PDF

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Publication number
TW201033093A
TW201033093A TW098146014A TW98146014A TW201033093A TW 201033093 A TW201033093 A TW 201033093A TW 098146014 A TW098146014 A TW 098146014A TW 98146014 A TW98146014 A TW 98146014A TW 201033093 A TW201033093 A TW 201033093A
Authority
TW
Taiwan
Prior art keywords
container body
opening
sealing
flange
inclined portion
Prior art date
Application number
TW098146014A
Other languages
Chinese (zh)
Inventor
Takahiro Ishiguro
Original Assignee
Idemitsu Unitech Co Ltd
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
Application filed by Idemitsu Unitech Co Ltd filed Critical Idemitsu Unitech Co Ltd
Publication of TW201033093A publication Critical patent/TW201033093A/en

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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
    • 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
    • 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
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/76—Making non-permanent or releasable joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by the joining tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81425—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being stepped, e.g. comprising a shoulder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • 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
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2878—Securing closures on containers by heat-sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Abstract

A packaging container (1) is provided with a flat roughly circular main container body (20), the depression (21) of which stores contents. A lid (30) for closing an opening (22) formed in a flat roughly circular shape in the center of the main container body (20) is heat-sealed to a flange (23) that is disposed on the periphery of the opening. The heat sealing of this flange (23) and the lid (30) is performed at a circular seal part (40). The main container body (20) is formed of a multilayer sheet (25) that is made of a sealing layer (251), an intermediate layer (252) and a base material layer (253). On the inner periphery side of the seal part (40), a resin pocket (33) is formed.

Description

201033093 六、發明說明： 【發明所屬之技術領域】 本發明係有關於一種容器本體、包裝容器、容器本體之 製造方法及製造裝置。 【先前技術】 先前，作為食品類之包裝形態係廣泛使用如下201033093 VI. Description of the Invention: [Technical Field] The present invention relates to a container body, a packaging container, a method of manufacturing the container body, and a manufacturing apparatus. [Prior Art] Previously, as a food packaging form, it was widely used as follows.

器，該加蓋容器係構成為包括於容器本體之開口部周緣設 置有凸緣部之容器本體、以及薄膜狀之蓋材，且，將食品 類收納至容器本體之内部之後，將該容器本體之凸緣部與 蓋材熱封，從而進行密封包裝。 就安全地保存收納於容器内部之食品類之觀點而言此 種加蓋容器必須具有將設於容器本體上之凸緣部與蓋材熱 封，且難以剝離藉由該熱封所形成之密封部之高密封性， ^且必須同時具備開封蓋材時可簡單地自容器本體剝離該 盍材之密封性與易開封性互為相反的特性。 Λ 於此種包裝容器_，開封前之㈣牲較為重要，而另一 ::亦要求開封時之易開封性。因此，一般眾所周知如下 利用改變樹脂材質等，控制容器本體之密封層之密 、強又，以剝離蓋材與容器本體之界面。 2如，於文獻ι(日本專利特開昭63 96_號公報）中 了二開封性容器：其係構成為多層容器本體之層間 ^小於凸緣部與蓋材之接著力，且於凸緣部附近接 熱封部之内側設置有環狀之切斷線。 口 又，於文獻2(日本專利特開作99933號公報）中記載有 145662.doc 201033093 如下容器：其於凸緣面形成傾斜突起部，當將凸緣與蓋材 熱封時，傾斜突起部會熔融擴散而形成樹脂堆積片且於 ^材之最内層覆蓋樹脂堆積片之狀態下以非接著乃至弱接 者狀態連結而成。 進而，於文獻3(日本專利特開昭似⑽號公旬中記載 有如下容器：其於凸緣部具有凸起之彎曲密封面，且於與 蓋材熱封時，於密封面之内外周部之至少一者上形成有隆 起部，並且隆起部以密封中心方向變小之方式形成有槽。 而且，於文獻4(日本專利特開2〇〇1_1〇658號公報）以及文 獻5(曰本專利特開平2-219767號公報）中記載有如下技術： 利用凸型密封盤’對包含多層片材之凸緣部與蓋材進行兩 次熱封，藉此形成樹脂堆積。 然而，文獻1記載之易開封性容器雖得到實用化，但存 在，置切口部及切斷線之步驟及密封位置之精度等技術難 度尚，欠缺通用性之問題。 又，文獻2記載之於凸緣部穩定祕突起収穩定獲得 藉由进封而形成之樹脂堆積均較為困難，並且存在容器之 厚度增加而引起成本增加之問題。 進而於文獻3令’亦難以穩定獲得密封而成之樹脂堆 積’且若於密封之外周側形成樹脂堆積則會導致易開封性 差再者實質上難以實現於密封之外周側不形成樹脂 堆積，因此無法獲得穩定之易開封性。 〜而且X獻4以及文獻5係藉由利用凸型密封盤進行兩次 雄封而形成樹脂堆積，但此種方法於實用令難以穩定地形 145662.doc 201033093 成樹脂堆積’又，難以實現為確保易開封性而於密封之外 周側不形成樹脂堆積。 如上所述’存在無法穩定獲得容器之高密封性及易開封 性而使品質產生不均，或者其製造步驟複雜，欠缺通用性 之問題。 【發明内容】The capping container is configured to include a container body having a flange portion at a periphery of an opening of the container body, and a film-shaped lid member, and after the food is stored in the container body, the container body is configured The flange portion and the lid member are heat-sealed to perform sealed packaging. The capping container must have a heat sealing of the flange portion provided on the container body and the lid member from the viewpoint of safely storing the food stored in the container, and it is difficult to peel off the seal formed by the heat seal. The high sealing property of the part, and the fact that it is necessary to simultaneously peel off the cover material can be easily peeled off from the container body, and the sealing property and the easy opening property of the coffin are opposite to each other. Λ In this packaging container _, the (four) animal before opening is more important, and the other :: also requires easy opening when opening. Therefore, it is generally known that the sealing layer of the container body is controlled to be dense and strong by changing the resin material or the like to peel off the interface between the lid member and the container body. 2, for example, in the document ι (Japanese Patent Laid-Open Publication No. SHO 63 96-A), a two-opening container is constructed such that the interlayer of the multi-layered container body is smaller than the adhesive force of the flange portion and the cover material, and is applied to the flange. An annular cutting line is provided on the inner side of the heat sealing portion near the portion. Further, in the document 2 (Japanese Patent Laid-Open Publication No. No. 99933), there is described a 145662.doc 201033093 container which has an inclined protrusion formed on a flange surface, and when the flange and the cover material are heat-sealed, the inclined protrusion is formed. The resin deposition sheet is melted and diffused to form a resin deposition sheet, and the innermost layer of the material is covered with the resin deposition sheet in a state of not joining or even weakening. Further, in the document 3 (Japanese Patent Laid-Open No. (10)), a container having a convex curved sealing surface at the flange portion and a periphery of the sealing surface when heat-sealed with the lid member is described. A ridge is formed in at least one of the portions, and the ridge portion is formed with a groove so that the center direction of the seal becomes smaller. Further, in the document 4 (Japanese Patent Laid-Open Publication No. Hei 2 〇〇 1 〇 658) and the document 5 (曰Japanese Patent Publication No. Hei 2-219767 discloses a technique in which a flange portion including a multilayer sheet and a lid member are heat-sealed twice by a convex sealing disk to form a resin deposit. Although the described easy-opening container has been put into practical use, there are technical difficulties such as the steps of placing the slit portion and the cutting line and the accuracy of the sealing position, and there is a problem of versatility. Further, the document 2 describes that the flange portion is stable. It is difficult to obtain a resin deposit formed by encapsulation, and there is a problem that the thickness of the container is increased to cause an increase in cost. Further, in the literature 3, it is difficult to stably obtain a sealed resin pile. In addition, if the resin is deposited on the peripheral side of the seal, the easy-opening property is poor, and it is substantially difficult to achieve resin deposition on the outer peripheral side of the seal. Therefore, stable easy-opening property cannot be obtained. Resin accumulation is formed by two male seals by using a convex sealing disc, but this method is difficult to stabilize the terrain by practical use. 145662.doc 201033093 Resin build-up is difficult to achieve in order to ensure easy-opening and seal outside the seal. There is no resin accumulation on the side. As described above, there is a problem that the high sealing property and the easy-opening property of the container cannot be stably obtained, and the quality is uneven, or the manufacturing steps are complicated, and the versatility is lacking.

本發明之目的在於提供一種具備穩定之易開封性及密封 性且可以簡單步驟製造之容器本體、包裝容器、容器本體 之製造方法以及製造裝置。 本發明之容器本體之特徵在於’其係具備收納内容物之 凹部以及自該凹部之開口部而延伸設置之凸緣部者，且包 括至少包含密封層及基材層之兩層之多層片材上述凸緣 部包括：請斜部，其相對於上述開口部之面方向於斜 上方傾斜；以及第2傾斜部，其自上述第1傾斜部之周緣向 外方向延伸設置，且盥卜找笙，减糾 n緣向 部。與上述第1傾斜部交又而形成頂角 於本發明中，容器本體之凸緣部含有第i傾斜 斜部，且因第！傾斜部與第2傾斜部之交又而形成第傾 第1傾斜部係相對於開σ部之面方向 、角。卜 當於凸緣部熱封蓋材時，會在m贫’方傾斜’因此 間之縫隙，因蓋材之密封層=第1傾斜部與蓋材之 显何之莕封層熔融而形成樹 由該樹脂堆積部而使蓋材與第1傾斜部接著广並經 容器本體之第1傾斜部之形狀，而利用通常之二可藉由 僅於密封部之内周緣側簡單地形成樹脂堆積。封方法， 145662.doc 201033093 :成有此種樹脂堆積之包裝容器不僅高密封性優異，且 封部之開封開始側不會形成樹脂堆積，故可維持易開 ;本發明之谷II本體中，較好的是’上述第^傾斜部相 對於上述開口部之面方向以小於90。之角度傾斜，上 :斜部相對於上述開口部之面方向以小於90。之角度第傾 :本發明巾，第1傾斜部以及第2傾斜部係相對於開口部 =方向分別以小於9〇。之角度傾斜。藉此，於凸緣部： ▲密封條而熱封蓋材時’藉由第i傾斜部與第2傾斜部之 二而形成之頂角部將受到密封條按壓，而使凸緣部朝向 邛之角度擴大之方向、即容器本體之外方延伸。此 ，’由於密封條之密封面係沿第2傾斜部而，故 與第1傾斜部之間易形成樹脂堆積部。因此，可容易地^ 造樹脂堆積之形成無不㈣之穩 明之容器本體中，較好的是，上述第 7上述開口部之面方向以15。以上且8〇。以下之角度傾 又’較好的是，上述第2傾斜部相對於上述開口部之面 方向以5以上且3〇。以下之角度傾斜。 ;發月中，由於第i傾斜部係相對上述開 ::1，5:以上且8〇。以下之角度傾斜，故將蓋材載置於凸緣 成樹脂堆積。 部門谷易產生縫隙，從而容易形 145662.doc 201033093 又’由於第2傾斜部係相對上述開口部之面方向以$。以 上且30。以下之角度傾斜，因此將蓋材載置於凸緣部進行 熱封時’蓋材與第2傾斜部之間可穩定地形成密封部。 , 如上所述’因可僅於凸緣部之内周側穩定地形成樹脂堆 積，故可容易地製造品質無不均勻之包裝容器。 於本發明之容器本體中，相對於上述開口部之面方向之 上述第1傾斜部之傾斜角度Α以及上述第2傾斜部之傾斜角 ^ 度Β ’較好的是滿足a g Β之關係。 於本發明中，第丨傾斜部之傾斜角度A具有第2傾斜部之 傾斜角度B以上之角度。藉此，如上述般利用密封條進行 熱封時，密封條之密封面容易沿著第2傾斜部形成，故可 更容易地於蓋材與第1傾斜部之間形成樹脂堆積部。因 此，可確實地於密封部之内周緣側形成樹脂堆積部，故可 提供更穩定之包裝容器。 本發明之包裝容器之特徵在於包括：上述容器本體；以 • 及蓋材，其阻塞上述開口部，並且藉由密封部而使該蓋材 與上述凸緣部之間密封。 • 本發明係關於—種於上述容器本體上熱封蓋材而獲得之 包裝容器者。因此’可實現與上述相同之作用效果。 、於本發明之包裝容器中，較好的是於上述蓋材與上述第 1傾斜部之間包含㈣堆積部，錢由該樹鱗積部而使 上述蓋材與上述第1傾斜部接著。 有月中，在包裝容器之蓋材與第1傾斜部之間形成 有樹知堆積部。所謂上述蓋材與 、4弟1傾斜部之間係指 145662.doc 201033093 二二:周緣側’故藉由形成於此處之樹脂堆積部，而 使包裝谷^密封性優異。另-方面，由於樹脂堆二 並未形成於密封部之外周緣側，故易開封性亦優^ 。 :本發明之包裝容器中，上述樹脂堆積 喙突形狀。 』疋剖面 於本發明中，樹脂堆積部係、形成為剖㈣突形狀 此種形狀，則懸垂於蓋材與 右為 受到内壓，故高密封性更優異;1斜=的樹脂堆積將 會妨礙開封。因此，可維持易開封性。、樹〜堆積部不 於本發明之包裝容器φ，p、+L + — Μ上讀脂堆積部較好的是使上 述谷^本體之上述頂角部之樹脂突出之形狀。 以於以第i傾斜部相對開口部之面方… 以下之傾斜角度，將蓋材載置於 可使樹脂堆積部為於蓋材與第⑽斜部之間具有 側之㈣部之樹脂突出之樹職㈣的形狀。 樹::出部即便於容器内填滿内容物時亦可穩定地形 成且可藉由樹腊堆積部受到内麼而獲得高密封性。 於本發明之包裝容器中， 剝離而開封。 ㈣的疋藉由上述密封層凝聚 任於：發明之包裝容器巾，可於蓋材或容器本體中之至少 _ ^封層上設置剝離層。作為_層，存在凝聚剝 Π刺層間剝離型等’但就開封包裝容器時不易產生被稱 之剝離層不良現象之觀點而言，較好的是設置凝聚剝離型 145662.doc 201033093 據此便可提供一種如下包裝容器：當將熱封著蓋材之包 裝容器開封時’密封層因凝聚破壞而凝聚剝離，故易開封 性優異’並且蓋材與密封層之間不會剝離，故密封性優 異。 本發明之容器本體之製造方法之特徵在於，使用可將上 述凹部成形、且可將上述凸緣部之上述第丨傾斜部以及第2 傾斜部成形的模具，將上述第丨傾斜部以及上述第2傾斜部 • 成形於上述凸緣部。 於本發明中，當使容器本體之凹部成形時，凸緣部之第 1傾斜部以及第2傾斜部亦同時成形。可藉由如此使用模具 實施成形，而確實地製造所需形狀之容器本體。以此方式 獲得之谷器本體於熱封時可確實地形成上述樹脂堆積部， 故可提供穩定且高品質之製品。 本發明之容器本體之製造裝置之特徵在於包括模具，該 模具包含：成形凹部，其係將上述容器本體之凹部成形； 參 第1傾斜面，其設置於上述成形凹部之開口部周緣，且相 對於上述開口部之面方向於斜上方傾斜；以及第2傾斜 面，其係與上述第1傾斜面交又而形成頂角部。 於本發明中，模具之成形凹部係使容器本體之凹部成 ' 形。又，可藉由第1傾斜面以及第2傾斜面，而使上述形狀 之凸緣部成形。僅將多層片材導入於此種製造裝置中並抵 壓於模具，便可簡單地使凸緣部成形。即，可確實地製造 所需形狀之容器本體，故可提供穩定且高品質之製品。 【實施方式】 145662.doc 201033093 以下，基於圖式’對本發明之一實施形態進行說明。 圖1Α以及圖1Β係表示本發明之實施形態之包裝容器之 圖’圖1A係表示利用蓋材密封之狀態之立體圖，圖⑺係 表示包裝容器之一部分被開封之狀態之立體圖。圖2係表 示上述實施形態中密封蓋材之前之容器本體之一部分的放 大剖面圖。圖3係圖1A之ΙΙΙ-ΐπ剖面圖。圖4係表示圖3之包 裝谷器開封之狀態之放大剖面圖。圖5係表示上述實施形 態中製造谷器本體之方法的剖面圖。圖6 A~圖6C係表示上 述實施形態中於凸緣部中密封蓋材之步驟之圖，圖6A係表 示密封前之狀態之剖面圖’圖6B係表示抵壓密封條之狀態 之剖面圖’圖6C係表示密封後之狀態之剖面圖。 [1.包裝容器之構成] 於圖1A中，包裝容器i包括將内容物p收納於凹部以中 之平面大致圓形狀之容器本體20，該容器本體2〇為阻塞於 其中心部形成為平面大致圓形之開口部22，而將蓋材3〇熱 封於開口部22之周緣上所配設的凸緣部23。該凸緣部23與 蓋材30之熱封係藉由環狀之密封部4〇而進行。如圖⑶所 示，包裝谷器1係握持著蓋材3〇之一部分突出之握持部 31，自凸緣部23上將由密封部4〇所密封之蓋材3〇剝離而開 封。 [1-1.容器本體之構成] 如圖2所不’容器本體2〇係由多層片材25而形成，該多 層片材25包含密封層251、中間層252以及基材層253。 密封層251形成熱封於蓋材3〇上之密封部4〇。而且，包 145662.doc •10- 201033093 裝容器1係藉由密封層251凝聚剝離而開封。作為構成此種 密封層251之樹脂，例如可列舉將乙烯-丙烯酸酯_順丁婦二 酸肝共聚物或本乙稀接枝丙稀樹脂中之至少一者择人至取 丙稀糸樹脂中所得之樹脂組成物。於該情形時，相對於 100重量份之聚丙烯系樹脂，乙烯-丙烯酸酯-順丁稀二酸肝 共聚物或苯乙稀接枝丙稀樹脂於較好的是10重量份以.上且 5〇重量份以下、特別好的是15重量份以上且4〇重量份以下 之範圍内添加便可。 中間層252係與密封層251鄰接設置之層，作為構成材 料’例如可使用聚丙烯系樹脂、聚乙烯系樹脂等稀煙系樹 脂或聚苯乙稀系樹脂、聚對苯二甲酸乙二醋（ΡΕΤ， polyethylene terephthalate)等聚酯系樹脂等材料、以及該 等之摻合材料。 基材層253係呈現於容益本體20之外部之層，作為構成 樹脂’可使用聚丙烯系樹脂、聚乙烯系樹脂等烯烴系樹脂 或聚苯乙稀系樹脂、聚對苯二甲酸乙二醋（ΡΕτ)等聚g旨系 樹脂等材料、乙烯乙烯醇共聚物以及該等之摻合材料之單 層片材或積層片材。 於該等積層片材上，亦可於層間設置接著層或氧吸收樹 脂層。作為接著層之構成材料’例如可列舉聚氨醋系或苯 乙烯系之彈性體、順丁烯二酸酐改質聚丙烯以及乙烯乙酸 乙稀醋（EVA，ethylene vinyl acetate)等。又，作為氧吸收 樹脂層，例如可列舉乙烯乙烯醇共聚物（EV〇H，Ethylene_ Vinyl alcohol copolymer)等。 145662.doc •11- 201033093 可藉由共擠出、乾式層壓、擠出層壓、擠出塗佈或該等 之組合，而將上述樹脂製作成包含密封層251/中間層 基材層253之多層片材25。再者，可利用各層之厚度、樹 脂選定及調配比率等’來調節各層之接著強度。 凹部21係藉由收納内容物p之收納部211、以及具有階差 地連續設置於收納部211上且形成凹部21之開口部之階差 . 部212而形成。 如圖3所示，凸緣部23包含：第1傾斜部Mi，其自該階 差部212之周緣延伸設置；以及第2傾斜部，其自第i傾斜 瘳 部231之周緣延伸設置。 第1傾斜部23 1係自階差部212之周緣，相對開口部22之 面方向朝斜上方延伸設置。本實施形態係以相對開口部22 之面方向之傾斜角度A為30。之方式延伸設置。再者，傾斜 角度A較好的是小於90。。 第2傾斜部232係自第1傾斜部231之周緣，相對開口部22 之面方向朝斜下方延伸設置。本實施形態係以相對於開口 部22之面方向之傾斜角度b為15。之方式延伸設置。再者， ® 傾斜角度B較好的是小於90。。 又，較好的是以第1傾斜部23 1以及第2傾斜部232相對開 口部22之面方向而成之傾斜角度a及B為A2 B之方式而形成。 . 藉由以此方式形成之第1傾斜部231以及第2傾斜部23 2之 交叉而形成頂角部233。 [1-2.蓋材之構成] 如圖2所示，蓋材30係藉由包含密封劑層321及外層322 145662.doc •12· 201033093 之兩層構成之積層體32而形成。 密封劑層321係熱封於容器本體20之密封層251上之層。 作為構成密封劑層321之樹脂，例如可使用無規聚丙烯 (RPP，random polypropylene)或嵌段聚丙烯（BPP，block polypropylene)、直鏈狀低密度聚乙婦（LLDPE，Linear Low Density Polyethylene)、聚乙稀等。再者，較好的是，形成 密封劑層321之樹脂之熔融指數（MI，melt index)為3 g/10 分鐘以上且30 g/10分鐘以下之範圍。MI於上述範圍内越 高，則越可穩定地將樹脂堆積部33形成為喙突形狀。 較好的是，密封劑層321之厚度為30 μιη以上且80 μηι以 下之範圍。密封劑層之厚度於上述範圍内越厚，則越可穩 定地將樹脂堆積部33形成為喙突形狀。 外層322可使用聚對苯二曱酸乙二酯（PET)薄膜、雙軸拉 伸尼龍薄膜（O-Ny，Oriented Nylon)等。 再者，蓋材30並不限定為兩層構成，例如亦可為PET12 pm/ONy(雙軸拉伸尼龍）15 pm/L-LDPE(低密度聚乙烯）60 μηι、及 PET12 pm/ONyl5 pm/CPP(casted polypropylene， 無延伸聚丙烯）60 μηι等之層構成。該等積層片材之製造可 藉由共擠出、熱層壓、乾式層壓等而進行，進而亦可藉由 階段性組合該等而進行。 [1-3.包裝容器之構成] 若將上述容器本體20之凸緣部23與蓋材30熱封，則如圖 3所示，於密封層251與密封劑層321之間將形成密封部 40，並且於密封部40之内周緣附近形成樹脂堆積部33。 145662.doc -13- 201033093 密封部40之密封強度必須為剝離蓋材3〇時密封層251與 密封劑層321之間不產生剥離之程度的強度。 樹脂堆積部33係蓋材30之密封劑層321藉由熱封之熱而 炫融，且已炼融之樹脂懸垂，而於蓋材與凸緣部η之第 1傾斜部23 1之間形成為嗓突形狀。 [2.包裝容器之開封] 基於圖4,對此種構成之包裝容器1之開封進行說明。 若握持著經密封之包裝容器1之握持部31，將蓋材3〇向 開封方向拉伸，則於密封部40之開口側端部41附近，容器 本體20之密封層251受到凝聚破壞，從而於密封層251上凝 聚剝離。若該凝聚剝離越過密封部40之内周側端部42而到 達樹脂堆積部33 ’則會於樹脂堆積部33與密封層251之交 界處產生剝離，使得包裝容器1開封。 [3·谷本體之製造裝置] 其次，使用圖5，對製造本實施形態之容器本體2〇之製 造裝置進行說明。 容器本體20可藉由利用塞助真空成形、塞助壓空成形等 眾所周知之方法對多層片材25進行熱成形而形成。 製造裝置5係將多層片材25熱成形為容器本體2〇之裝 置且匕括·模具51，其配置於多層片材25之與形成有開 口部22之側相反之侧；凸緣壓板52，其夾持凸緣部^而配 置於模具51之相反側·’以及插塞53，其形成容器本體2〇之 開口部22。 於模具51上，用以形成容器本體2〇之開口部22之成形凹 145662.doc 201033093 部511形成於中央處，且於該成形凹部511之上端緣形成有 用以使凸緣部23成形之凸緣成形部512。模具51於本實施 形態中係多80 mm之凹用模具。 凸緣成形部512包含：第1傾斜面513，其相對開口部22 之面方向具有30。之傾斜角度；以及第2傾斜面514，其相 對開口部22之面方向具有15。之傾斜角度。藉由該等第1傾 斜面513以及第2傾斜面514，凸緣成形部512可整體形成為 凸狀。 凸緣壓板52係藉由與模具51之凸緣成形部512—併壓住 多層片材25’而使容器本體20之凸緣部23成形者。 凸緣壓板5 2係沿模具5 1之成形凹部5 11之開口部之外緣 形成為環狀，且具有與模具51之凸緣成形部512相對向之 壓板面521。壓板面521包含相對開口部22之面方向具有 30°之傾斜角度之第1整合面521A、以及相對開口部22之面 方向具有15。之傾斜角度之第2整合面521B，以嵌合於凸緣 成形部512，且凸緣壓板52形成為凹狀。 如上所述’形成為凸狀之凸緣成形部512與形成為凹狀 之凸緣Μ板52係介隔多層片材25而嵌合，藉此使凸緣部23 成形。 又，凸緣壓板52可與模具51 —併於1〇艽以上16〇。(：以下 之範圍内進行溫度調節。 進而，凸緣壓板52連結於彈簧54，且可藉由更換為彈簧 常數不同之彈簧來調整壓力。 插塞53係以小於模具51之成形凹部511之直徑形成為大 145662.doc -15- 201033093 致相同形狀’且夾持多層片材25而嵌合於成形凹部5U。 藉由如上所述之製造裝置5,而將多層片材25進給至模 具51與凸緣壓板52以及插塞53之間，並於該狀態下使凸緣 壓板52以及插塞53移動至模具51側，藉此便可於多層片材 25上將用以收納内容物之凹部2丨及凸緣部23 一次成形從 而將容器本體20成形。 [4.包裝容器之製造方法] 其次，對製造本實施形態之包裝容器1之方法進行說明。 首先，將經加熱而軟化之多層片材25導入至上述製造裝 置5中。多層片材25到達模具51之上面側後，使插塞53接 近多層片材25。此時，插塞53與多層片材25所包圍之空間 成為後閉狀態。繼之，將多層片材25預成形，並且一面藉 由設置於插塞53之面向多層片材25之側之未圖示之壓空腔 室注入高壓空氣’使其成為壓空狀態，一面推壓成形凹部 511 ’進行模塞助壓空成形。 又’與該步驟同時地將凸緣壓板52推抵至模具51之凸緣 成形部5 12 ’形成凸緣部23。凸緣壓板52係以使壓力達到 1.5 kg/cm2以上且20 kg/cm2以下之範圍之方式，利用彈簧 54進行調整。若壓力小於1.5 kg/cm2、或超過20 kg/cm2， 則難以使凸緣部23形成為所需之厚度。又，凸緣壓板52之 溫度係以達到10°C以上且160°C以下之範圍内之方式進行 調整。若溫度超過160°C，則將接近密封層251所使用之樹 脂之融點，而可能導致成形自身不穩定。凸緣壓板52之溫 度之更好的範圍係l〇〇°C以上且120°C以下。 145662.doc 16 201033093 其-人，對利用多層片材25而成形之容器本體2〇中，.主 入·填充作為内容物P之液體’並將容器本體2〇之凸緣部 23與蓋材30熱封。 使用圖6A〜圖6C，對熱封之步驟進行說明。首先，於圖 6A中’將容器本體2〇載置於用於熱封之密封台6上並於 凸緣部23之上面載置蓋材30。繼而，如圖6B所示，將經加 熱之環狀之密封條7自蓋材30之上抵壓至凸緣部Μ之頂角 部233。藉此，沿頂角部233之角度變大之方向，第i傾斜 部231以及第2傾斜部232改變角度而使凸緣部23變形，且 密封條7之密封面71介隔蓋材3〇而與第2傾斜部232接觸， 從而形成密封部40。此時，密封劑層321因密封條7之熱而 熔融，且該熔融樹脂以填充密封劑層321與第丨傾斜部 之間之方式垂下，形成喙突形狀之樹脂堆積部33。若於熱 封結束後停止密封條7之按壓，則如圖6(：所示，第i傾斜部 231以及第2傾斜部232恢復原本之形狀，成為蓋材3〇與第i 傾斜部231之間形成有樹脂堆積部33之密封狀態。再者， 藉由密封條7之密封面71，而使凸緣部23之第2傾斜部232 面壓接’形成密封部40，因此密封部4〇之開口侧不會產生 縫隙，故不會形成樹脂堆積。 熱封之接著強度可根據溫度、壓力、時間等熱封條件、 各層之厚度、樹脂選定等而調節。 因此’本實施形態可實現以下之作用效果。 (1)容器本體20之凸緣部23之第1傾斜部231相對開口部 22之面方向以30。之傾斜角度形成，並且第2傾斜部232相 145662.doc •17· 201033093 對開口部22之面方向以15。之傾斜角度形成。若將該凸緣 部23與蓋材30熱封，則蓋材3〇之密封劑層321將熔融垂 下，從而於第1傾斜部231與蓋材30之間形成喙突形狀之樹 脂堆積部33。 該樹脂堆積部33僅形成於凸緣部23之密封部4〇之内周側 端部42側，因此包裝容器1之内壓強度變高，高密封性優 異。又，於開口側端部41側未形成樹脂堆積，故可維持易 開封性。即，可提供高密封性與易開封性均為優異之包裝 容器。 (2) 又於凸緣部23上，相對開口部22之面方向以3〇。之 傾斜角度形成第1傾斜部231，並相對開口部22之面方向以 15。之傾斜角度形成第2傾斜部232，藉此僅利用通常使用 之具有平面之密封條7進行熱封，便可形成上述樹脂堆積 部33。即，即便不調整密封部4〇之位置，亦可簡單地僅於 密封部40之内周側端部42側形成樹脂堆積部33。即，可藉 由簡單之製造方法而製造具備穩定之高密封性以及易開封 性的包裝容器。 (3) 由於可利用普通使用之密封條，故可無需特別之密 封設備，從而削減導入成本，並且亦可無需改變製造方 法’從而穩定地提供包裝容器1。 (4) 由於模具51中設置有用以形成凸緣部23之凸緣成形部 512,故可藉由通常之容器本體之成形方法而簡單成形。 而且，以此方式成形之凸緣部23係以大致固定之厚度形 成，故無需進行調整容器本體2〇之多層片材25以及各層之 145662.doc -18- 201033093 厚度等之複雜調整，因而，可以簡單之步驟進行製造。 又亦可無需為形成樹脂堆積部33而增厚凸緣部23之厚 度’故可降低材料成本以及製造成本。 (5)又’於本實施形態中，不僅使用模具51，而且使用 具有與凸緣成形部512相對向之壓板面521之凸緣壓板52。 可藉由使該凸緣壓板52介隔多層片材25而抵壓至凸緣成形 部512 ’而使凸緣部23之厚度精度提高，從而提供易開封 • 性穩定且高密封性優異之包裝容器。 再者，本發明並非限定於上述實施形態者，於可達成本 發明之目的之範圍内之變形、改良等亦屬於本發明。 例如’上述實施形態係藉由密封層25〗凝聚制離而開封 包裝容器1，但亦可為藉由密封層251與鄰接之中間層252 之界面之界面剝離而開封之構成。 該情形時’較好的是設定為密封層251與蓋材30之剝離 強度大於密封層251與中間層252之剝離強度。例如，將密 • 封層251與中間層252之剝離強度設定於〇.5 kg/15 mm以上 且2.5 kg/15 mm以下之範圍内。若密封層251與中間層252 之剝離強度小於0_5 kg/15 mm，則存在密封性受損之可 能’又’若超過2.5 kg/15 mm ’則無法自中間層252剝離密 . 封層25 1而導致難以開封。剝離強度之較好範圍係〇.5 kg/15 mm以上且 1.3 kg/15 mm以下。 此時’較好的是密封層251之厚度為ι〇 μιη以上且1〇〇 μιη 以下之範圍’且可根據容器之大小及用途而適當調整。若 成形前之密封層251之厚度小於10 μιη，則與蓋材30密封時 145662.doc -19- 201033093 密封層25 1將不穩定，故難以自中間層252剝離。又，若密 封層251之厚度超過1〇〇 μπι’則因厚度超出需要而不實 用。中間層252之厚度並無特別限定，但較好的是形成於 10 μπι以上之範圍内。若中間層252之厚度小於1〇 μιη，則 存在基材層253與中間層252之間產生剝離之虞。再者，中 間層252之厚度之更好範圍為50 μπι以上。 又，凸緣部23並非限定於上述實施形態之形狀，構成為 熱封時於密封部40之内周側端部42附近形成樹脂堆積部33 便可。例如圖7Α所示，可使階差部212與第1傾斜部231曲 面狀連接，又，亦可使第1傾斜部231與第2傾斜部232曲面 狀連接。又，如圖7Β所示，亦可包含自第2傾斜部232之端 部朝外侧方向延伸設置之端緣部234。 於上述實施形態係藉由熱封之熱而使蓋材側之樹脂熔 融，但亦可為使容器侧之樹脂熔融之構成、或使蓋材側以 及容器側此兩面之樹脂熔融之構成。 又，上述實施形態係使樹脂堆積部33為喙突形狀，但亦 可於第1傾斜部231相對開口部22之面方向呈4〇。以上且8〇。 以下之傾斜角度八丨之狀態下將蓋材3〇載置於凸緣部U上進 行熱封之情形時，如圖8所示，使樹脂堆積部33為於蓋材 30與第1傾斜部231之間具有容器侧之頂角部之樹脂突出之 樹脂突出部34之形狀。而^，可使樹脂堆積部㈣樹脂突 出部34由蓋材30之密封劑層321覆蓋之形狀。 樹脂突出部34即便於容器i内填滿内容物ρ之情形時亦可 穩定地形成，故可藉由樹脂堆積部33受到内壓而獲得較高 145662.doc •20· 201033093 之密封性。 ，進而，上述實施形態係使用凸緣壓板52而使凸緣部23成 形，但亦可為不使用凸緣壓板52之構成。藉此，可藉由簡 單之製造裝置而使容器本體成形。 ，並且，上述實施形態係使包裝容器丨之形狀成為平面圓 形，但並非限定於此，亦可為平面矩形或其他形狀。 [實施例] ❿ 其次，列舉實施例，對本發明進行更詳細說明，但本發 明並不受到該等實施例之記載内容的任何限制。 &lt;容器本體之製造&gt; 藉由通常使用之分配器方式共擠出多層片材製造裝置， 來製造容器本體中使用之片材。片材係以下所示之6層之 多層片材。 1. 密封層： 聚丙烯（Prime Polymer股份有限公司製「E l〇5GM」）7〇 φ 重量。/°與乙烯-丙烯酸酯-順丁烯二酸酐共聚物（曰本 polyethylene製「RexpearlET22〇x」）3〇重量％之混合樹脂 2. 中間層： 聚丙烯（Prime Polymer股份有限公司製「e_1〇5GM」）8〇 - 重量°/〇與聚乙烯（宇部丸善Polyethylene製「R-300」）20重 量％之混合樹脂 3. 接著層1 : 順丁烯二酸酐改質聚丙烯（三菱化學製Γ M〇dicAp P502」） 145662.doc 21 201033093 4.EVOH層：Kuraray股份有限公司製「Evaij」 5·接著層2 :與接著層1相同 6.基材層：與中間層相同 使用上述多層片材’藉由實施形態中所使用之塞助+凸 緣爽具真空壓空成形，而使圖1Α記載之包裝容器成形。各 種條件如下所示。 成形模具：使用輪廓為080之圓型且具有5 mm寬度之模 具凸緣之凹型，分別改變模具凸緣之外周側角度（上述實 施形態之傾斜角度B)以及内周側角度（上述實施形態之傾 斜角度A) ’從而製成容器本體（參照表1：)。 凸緣壓板：具有以嵌合於模具凸緣之方式對應於各模具 凸緣之外周側角度以及内周側角度之壓板面。 &lt;蓋材之密封&gt; 作為蓋材’係使用聚對苯二甲酸乙二酯（PET、12 μηι)/ 雙轴拉伸尼龍（〇Ny、15 μιη)/無延伸聚丙烯（CPP、6〇 μιη) 之層壓薄膜。 使上述層壓薄膜之CPP面接觸於所得之容器本體之凸緣 部，並於溫度190°C、密封壓力150 kg/個、密封時間12秒 之條件下，自PET面抵壓密封條進行熱封使之接著。再 者’密封條使用以下之兩個種類。 Χ·形成為多75〜065之環狀’且具有遍及整個表面均平 坦之接觸面。 Υ.形成為#75~065之環狀，且具有遍及整個表面均平 坦之接觸面’並包含一部分朝裎向外侧以嗓突形狀突出之 145662.doc -22- 201033093 突出部。 〈其他容器&gt; 除了上述包裝容器之外，亦製作日本專利特開平9-99933記載之包裝容器作為比較例！，製作曰本專利特開、， 2-219767記载之包裝容器作為比較例2，製作曰本專利= 開昭63-96060記載之包裝容器作為比較例3。 &lt;評估&gt; 鲁 藉由上述方法而製成以下表1所示之實施例丨〜12、比較 例1〜3之包裝容器，並實施内壓強度測定、開封部中之剝 離強度測定、開封感以及密封調整之難易度之評估。評估 方法以及评估結果如下所示。 1 ·内壓強度測定 使用Sun-kagaku(股）製之破裂強度測定器，並依據 JIS(Japanese Industrial Standards ’ 日本工業標準）_z〇238 進行測試。具體而言，於蓋材之外表面貼附黏著性橡穋薄 ❿ 片，將針插入該黏著性橡膠薄片後送入空氣，測定容器破 裂時之強度。 2 ·剝離強度測定 使用IMADA(股）製之數位測力計，進行依據jhz〇23 8 - 之測試。具體而言’將蓋材經熱封之包裝容器切割成寬15 mm ’相對容器本體之凸緣面以丨35。之角度拉伸蓋材之開 封開始側，測定剝離時之強度。 3.開封感 按照以下之基準進行評估。 145662.doc •23· 201033093 A :全部整齊地開封，開封感亦良好。 B :確認到密封層中產生2 mm以内之毛刺狀之延伸，但 開封良好。 C:密封層中產生2 mm以上之毛刺狀之延伸，雖可勉強 開封但易開封感受損。 4.密封調整之難易度之評估 按照以下之基準進行評估。 A:幾乎無需進行密封調整。 B :需要進行密封溫度等之調整。 C :密封位置及密封條之接觸要求較高精度，故必須調 整位置、接觸、及壓力等，且該等調整所需之密封機亦受 到限制。 [表1]SUMMARY OF THE INVENTION An object of the present invention is to provide a container body, a packaging container, a method for producing a container body, and a manufacturing apparatus which are provided in a simple process and which have stable opening and sealing properties and can be easily manufactured. The container body of the present invention is characterized in that it includes a concave portion for accommodating a content and a flange portion extending from an opening portion of the concave portion, and includes a multilayer sheet including at least two layers of a sealing layer and a substrate layer. The flange portion includes a sloped portion that is inclined obliquely upward with respect to a surface direction of the opening portion, and a second inclined portion that extends outward from a peripheral edge of the first inclined portion, and finds a ridge , reduce the angle of the n edge. The apex angle is formed in addition to the first inclined portion. In the present invention, the flange portion of the container body includes the i-th inclined portion, and the first! The intersection of the inclined portion and the second inclined portion forms a direction and an angle of the first inclined portion with respect to the opening σ portion. When the cover member is heat-sealed to the flange portion, it will be inclined at the side of the m-thickness, and the seal layer of the cover material = the first inclined portion and the cover material, and the seal layer is melted to form a tree. By the resin deposition portion, the lid member and the first inclined portion are widened and passed through the shape of the first inclined portion of the container body, and the resin can be simply formed by merely forming the resin on the inner peripheral side of the sealing portion. Sealing method, 145662.doc 201033093: The packaging container having such resin accumulation is not only excellent in high sealing property, but also does not form resin accumulation on the opening side of the sealing portion, so that it can be easily opened; in the body of the valley II of the present invention, Preferably, the direction of the surface of the first inclined portion with respect to the opening portion is less than 90. The angle is inclined, and the upper portion has a direction of less than 90 with respect to the surface of the opening. The angle of inclination: In the towel of the present invention, the first inclined portion and the second inclined portion are each less than 9 turns with respect to the opening portion = direction. The angle is inclined. Therefore, when the cover member is: ▲ a sealing strip and heat-sealing the lid member, the apex portion formed by the second i-th inclined portion and the second inclined portion is pressed by the sealing strip, and the flange portion is oriented toward the crucible. The direction in which the angle is enlarged, that is, the outside of the container body extends. Therefore, since the sealing surface of the weather strip is along the second inclined portion, a resin deposition portion is easily formed between the first inclined portion and the first inclined portion. Therefore, it is possible to easily form a container body in which the formation of the resin deposition is uniform (4), and it is preferable that the surface direction of the seventh opening portion is 15 . Above and 8〇. It is preferable that the angle of the second inclined portion is 5 or more and 3 turns with respect to the surface direction of the opening. The following angles are tilted. In the month of the month, since the i-th inclined portion is opened relative to the above: ::1, 5: or more and 8 inches. The following angles are inclined, so that the cover material is placed on the flange to form a resin. The department valley is prone to gaps and is easy to form. 145662.doc 201033093 In addition, the second inclined portion is oriented at $ with respect to the surface direction of the opening. Above and 30. Since the following angle is inclined, when the lid member is placed on the flange portion and heat-sealed, the sealing portion can be stably formed between the lid member and the second inclined portion. As described above, the resin can be stably formed only on the inner peripheral side of the flange portion, so that it is possible to easily manufacture a packaging container having no uneven quality. In the container body of the present invention, the inclination angle Α of the first inclined portion with respect to the surface direction of the opening portion and the inclination angle Β ′ of the second inclined portion preferably satisfy the relationship of a g 。 . In the present invention, the inclination angle A of the second inclined portion has an angle equal to or greater than the inclination angle B of the second inclined portion. As a result, when the sealing is performed by the weather strip as described above, the sealing surface of the sealing strip is easily formed along the second inclined portion, so that the resin deposition portion can be more easily formed between the lid member and the first inclined portion. Therefore, the resin deposition portion can be surely formed on the inner peripheral side of the sealing portion, so that a more stable packaging container can be provided. The packaging container of the present invention is characterized by comprising: the container body; and a lid member that blocks the opening portion and seals between the lid member and the flange portion by a sealing portion. • The present invention relates to a packaging container obtained by heat-sealing a cover material on the above-mentioned container body. Therefore, the same effects as described above can be achieved. In the packaging container according to the present invention, preferably, the cover member and the first inclined portion include (4) a stacking portion, and the lid member is connected to the first inclined portion by the tree scale portion. In the middle of the month, a tree-like accumulation portion is formed between the lid member of the packaging container and the first inclined portion. The cover material and the inclined portion of the 4th body 1 are referred to as 145662.doc 201033093 22: the peripheral side is formed by the resin deposition portion formed therein, and the package is excellent in sealing property. On the other hand, since the resin pile 2 is not formed on the peripheral side of the sealing portion, the easy-opening property is also excellent. In the packaging container of the present invention, the resin is deposited in a conical shape. In the present invention, the resin deposition portion is formed into a shape of a cross-sectional shape, and the shape is formed by the internal pressure of the lid member and the right side, so that the high sealing property is more excellent; Obstruction of opening. Therefore, the easy-opening property can be maintained. The tree-to-stacking portion is not in the packaging container φ, p, +L + - Μ of the present invention, and the fat-receiving portion is preferably a shape in which the resin of the apex portion of the body of the above-mentioned valley is protruded. The lid member is placed on the surface of the opening portion of the i-th inclined portion with respect to the opening, and the resin is placed so that the resin deposition portion is a resin protruding from the (four) portion between the lid member and the (10) oblique portion. The shape of the tree (four). Tree: The outlet can be stably formed even when the contents of the container are filled with the contents, and can be highly sealed by the inside of the tree wax accumulation portion. In the packaging container of the present invention, it is peeled off and opened. (4) The crucible is agglomerated by the sealing layer. The packaging container of the invention may be provided with a release layer on at least the sealing layer of the lid member or the container body. As the _ layer, there is a cohesive stripping layer between the layers, but it is not easy to produce a peeling layer when opening the packaging container. It is preferable to provide a cohesive stripping type 145662.doc 201033093 Provided is a packaging container which, when the packaging container for heat-sealing a lid member is unsealed, 'the sealing layer is agglomerated and peeled off due to aggregation failure, so that the sealing property is excellent, and the lid member and the sealing layer are not peeled off, so that the sealing property is excellent. . In the method of manufacturing a container body according to the present invention, the first inclined portion and the first portion are formed by using a mold that can form the concave portion and can form the second inclined portion and the second inclined portion of the flange portion. 2 inclined portion • formed on the flange portion. In the present invention, when the concave portion of the container body is formed, the first inclined portion and the second inclined portion of the flange portion are simultaneously molded. The container body of the desired shape can be reliably produced by performing the molding using the mold as described above. The bar body obtained in this manner can surely form the above-mentioned resin deposition portion at the time of heat sealing, so that a stable and high-quality product can be provided. The apparatus for manufacturing a container body according to the present invention is characterized by comprising a mold comprising: a forming recess for forming a concave portion of the container body; and a first inclined surface provided at a periphery of the opening portion of the forming concave portion, and opposite The surface of the opening is inclined obliquely upward; and the second inclined surface is formed to intersect with the first inclined surface to form a vertex. In the present invention, the forming recess of the mold is such that the concave portion of the container body is shaped. Further, the flange portion of the above shape can be formed by the first inclined surface and the second inclined surface. The flange portion can be easily formed by simply introducing the multilayer sheet into such a manufacturing apparatus and pressing against the mold. Namely, the container body of a desired shape can be reliably produced, so that a stable and high-quality product can be provided. [Embodiment] 145662.doc 201033093 Hereinafter, an embodiment of the present invention will be described based on the drawings. Fig. 1A and Fig. 1 are views showing a packaging container according to an embodiment of the present invention. Fig. 1A is a perspective view showing a state in which a lid member is sealed, and Fig. 7 is a perspective view showing a state in which one portion of the packaging container is unsealed. Fig. 2 is an enlarged cross-sectional view showing a portion of the container body before sealing the lid member in the above embodiment. Figure 3 is a cross-sectional view of the ΙΙΙ-ΐπ of Figure 1A. Fig. 4 is an enlarged cross-sectional view showing the state in which the packaged bag of Fig. 3 is opened. Fig. 5 is a cross-sectional view showing the method of manufacturing the stem body in the above embodiment. 6A to 6C are views showing a step of sealing the lid member in the flange portion in the embodiment, and Fig. 6A is a cross-sectional view showing a state before sealing. Fig. 6B is a cross-sectional view showing a state in which the sealing strip is pressed. Fig. 6C is a cross-sectional view showing a state after sealing. [1. Configuration of packaging container] In Fig. 1A, the packaging container i includes a container body 20 in which a content p is received in a substantially circular shape in a plane in which a concave portion is formed, and the container body 2 is formed to be flat at a central portion thereof. The lid portion 3 is heat-sealed to the flange portion 23 provided on the periphery of the opening portion 22 by the substantially circular opening portion 22. The heat sealing of the flange portion 23 and the lid member 30 is performed by the annular sealing portion 4〇. As shown in Fig. 3, the packaging bar 1 holds the grip portion 31 which is partially protruded from the lid member 3, and the lid member 3, which is sealed by the sealing portion 4, is peeled off from the flange portion 23 to be opened. [1-1. Configuration of Container Body] As shown in Fig. 2, the container body 2 is formed of a multilayer sheet 25 including a sealing layer 251, an intermediate layer 252, and a base material layer 253. The sealing layer 251 forms a sealing portion 4 that is heat-sealed on the lid member 3. Further, the package 145662.doc •10-201033093 The container 1 is unsealed by the sealing layer 251 being agglomerated and peeled off. As the resin constituting the sealing layer 251, for example, at least one of ethylene-acrylate-cis-butanyl-hepatic acid copolymer or the present ethylene-grafted acryl resin can be selected to be taken into the acryl resin. The resulting resin composition. In this case, the ethylene-acrylate-cis-succinic acid liver copolymer or the styrene-grafted propylene resin is preferably 10 parts by weight with respect to 100 parts by weight of the polypropylene-based resin. It is sufficient to add 5 parts by weight or less, particularly preferably 15 parts by weight or more and 4 parts by weight or less. The intermediate layer 252 is a layer provided adjacent to the sealing layer 251, and as the constituent material, for example, a flax-type resin such as a polypropylene resin or a polyethylene resin, a polystyrene resin, or a polyethylene terephthalate may be used. Materials such as polyester resins such as (polyethylene terephthalate), and the like. The base material layer 253 is a layer which is provided outside the margin body 20, and as the constituent resin, an olefin resin such as a polypropylene resin or a polyethylene resin or a polystyrene resin or polyethylene terephthalate can be used. A material such as vinegar (ΡΕτ), a material such as a resin, an ethylene vinyl alcohol copolymer, and a single layer sheet or a laminated sheet of the blended materials. On the laminated sheets, an adhesive layer or an oxygen absorbing resin layer may be provided between the layers. The constituent material of the adhesive layer exemplifies, for example, a polyurethane-based or styrene-based elastomer, a maleic anhydride-modified polypropylene, and an ethylene vinyl acetate (EVA). Further, examples of the oxygen absorbing resin layer include an ethylene vinyl alcohol copolymer (EV〇H, Ethylene_ Vinyl alcohol copolymer). 145662.doc • 11- 201033093 The above resin may be formed to include a sealing layer 251/intermediate substrate layer 253 by coextrusion, dry lamination, extrusion lamination, extrusion coating, or a combination thereof. Multilayer sheet 25. Further, the thickness of each layer, the resin selection and the blending ratio, etc. can be used to adjust the adhesion strength of each layer. The recessed portion 21 is formed by a housing portion 211 that accommodates the content p and a step portion 212 that is continuously provided on the housing portion 211 with a step and that forms an opening portion of the recess portion 21. As shown in Fig. 3, the flange portion 23 includes a first inclined portion Mi extending from the periphery of the step portion 212, and a second inclined portion extending from the periphery of the i-th inclined portion 231. The first inclined portion 23 1 is formed from the periphery of the step portion 212 and extends obliquely upward with respect to the surface of the opening portion 22. In the present embodiment, the inclination angle A with respect to the surface direction of the opening portion 22 is 30. The way to extend the settings. Further, the inclination angle A is preferably less than 90. . The second inclined portion 232 is extended from the peripheral edge of the first inclined portion 231 toward the surface of the opening portion 22 obliquely downward. In the present embodiment, the inclination angle b with respect to the surface direction of the opening portion 22 is 15. The way to extend the settings. Furthermore, the inclination angle B of the ® is preferably less than 90. . Further, it is preferable that the inclination angles a and B of the first inclined portion 23 1 and the second inclined portion 232 with respect to the surface direction of the opening portion 22 are A2 B . The apex portion 233 is formed by the intersection of the first inclined portion 231 and the second inclined portion 23 2 formed in this manner. [1-2. Configuration of Cover Material] As shown in FIG. 2, the cover member 30 is formed by a laminate body 32 including a sealant layer 321 and an outer layer 322 145662.doc • 12· 201033093. The sealant layer 321 is a layer that is heat sealed to the sealing layer 251 of the container body 20. As the resin constituting the sealant layer 321, for example, a random polypropylene (RPP) or a block polypropylene (BPP), a linear low density polyether (LLDPE) can be used. , polyethylene, etc. Further, it is preferred that the resin forming the sealant layer 321 has a melt index (MI, melt index) of 3 g/10 min or more and 30 g/10 min or less. The higher the MI is in the above range, the more stably the resin deposition portion 33 is formed into a conical shape. Preferably, the thickness of the sealant layer 321 is in the range of 30 μm or more and 80 μm or less. The thicker the thickness of the sealant layer is in the above range, the more stably the resin deposited portion 33 is formed into a conical shape. As the outer layer 322, a polyethylene terephthalate (PET) film, a biaxially stretched nylon film (O-Ny, Oriented Nylon), or the like can be used. Furthermore, the cover material 30 is not limited to a two-layer structure, and may be, for example, PET12 pm/ONy (biaxially stretched nylon) 15 pm/L-LDPE (low density polyethylene) 60 μηι, and PET12 pm/ONyl5 pm. /CPP (casted polypropylene), layer structure of 60 μηι. The production of the laminated sheets can be carried out by co-extrusion, heat lamination, dry lamination, or the like, or can be carried out by combining them in stages. [1-3. Configuration of Packaging Container] When the flange portion 23 of the container body 20 and the lid member 30 are heat-sealed, a sealing portion is formed between the sealing layer 251 and the sealant layer 321 as shown in FIG. 40, and a resin deposition portion 33 is formed in the vicinity of the inner periphery of the sealing portion 40. 145662.doc -13- 201033093 The sealing strength of the sealing portion 40 must be such a degree that peeling does not occur between the sealing layer 251 and the sealant layer 321 when the cover member 3 is peeled off. The resin deposition portion 33 is formed by the heat seal heat of the sealant layer 321 of the cover member 30, and the resin that has been fused is suspended, and is formed between the lid member and the first inclined portion 23 1 of the flange portion η. For the shape of the condyle. [2. Unsealing of packaging container] The opening of the packaging container 1 having such a configuration will be described based on Fig. 4 . When the grip portion 31 of the sealed packaging container 1 is gripped and the lid member 3 is stretched in the unsealing direction, the sealing layer 251 of the container body 20 is agglomerated and destroyed in the vicinity of the opening-side end portion 41 of the sealing portion 40. Thereby, the peeling is agglomerated on the sealing layer 251. When the agglomeration peels over the inner peripheral side end portion 42 of the sealing portion 40 and reaches the resin deposition portion 33', peeling occurs at the boundary between the resin deposition portion 33 and the sealing layer 251, so that the packaging container 1 is opened. [3. Manufacturing apparatus of the grain body] Next, a manufacturing apparatus for manufacturing the container body 2 of the present embodiment will be described with reference to Fig. 5 . The container body 20 can be formed by thermoforming the multilayer sheet 25 by a well-known method such as plug-assisted vacuum forming or plug-assisted pressure forming. The manufacturing apparatus 5 is a device for thermoforming the multilayer sheet 25 into the container body 2, and includes a mold 51 disposed on the side of the multilayer sheet 25 opposite to the side on which the opening 22 is formed; the flange pressing plate 52, The clamping flange portion is disposed on the opposite side of the mold 51, and the plug 53, which forms the opening portion 22 of the container body 2. On the mold 51, a forming recess 145662.doc 201033093 portion 511 for forming the opening portion 22 of the container body 2 is formed at the center, and a convex portion for forming the flange portion 23 is formed at the upper edge of the forming recess 511. Edge forming portion 512. The mold 51 is a concave mold of 80 mm in this embodiment. The flange forming portion 512 includes a first inclined surface 513 having a surface direction 30 with respect to the opening portion 22 . The inclination angle of the second inclined surface 514 has 15 with respect to the surface direction of the opening portion 22. The angle of inclination. The flange forming portion 512 can be formed in a convex shape as a whole by the first inclined surface 513 and the second inclined surface 514. The flange pressing plate 52 is formed by molding the flange portion 23 of the container body 20 by pressing the plurality of sheets 25' with the flange forming portion 512 of the mold 51. The flange pressing plate 52 is formed in an annular shape along the outer edge of the opening of the forming recess 511 of the mold 51, and has a platen surface 521 opposed to the flange forming portion 512 of the mold 51. The platen surface 521 includes a first integration surface 521A having an inclination angle of 30° with respect to the surface direction of the opening portion 22, and a surface 15 having a surface area of 15 with respect to the opening portion 22. The second integrated surface 521B of the inclined angle is fitted to the flange forming portion 512, and the flange pressing plate 52 is formed in a concave shape. As described above, the flange forming portion 512 formed in a convex shape and the flange gusset 52 formed in a concave shape are fitted to each other via the multilayer sheet 25, whereby the flange portion 23 is molded. Further, the flange pressing plate 52 can be combined with the mold 51 at 16 turns or more. (The temperature is adjusted in the following range. Further, the flange pressing plate 52 is coupled to the spring 54, and the pressure can be adjusted by replacing the spring having a different spring constant. The plug 53 is smaller than the diameter of the forming recess 511 of the mold 51. The 145662.doc -15-201033093 is formed into the same shape and the multi-layer sheet 25 is sandwiched and fitted into the forming recess 5U. The multilayer sheet 25 is fed to the mold 51 by the manufacturing apparatus 5 as described above. Between the flange pressing plate 52 and the plug 53, the flange pressing plate 52 and the plug 53 are moved to the side of the mold 51 in this state, whereby the recess for accommodating the contents can be placed on the multilayer sheet 25. 2丨 and the flange portion 23 are molded once to form the container body 20. [4. Method of Manufacturing Packaging Container] Next, a method of manufacturing the packaging container 1 of the present embodiment will be described. First, a plurality of layers which are softened by heating are used. The sheet 25 is introduced into the above-described manufacturing apparatus 5. After the multilayer sheet 25 reaches the upper surface side of the mold 51, the plug 53 is brought close to the multilayer sheet 25. At this time, the space surrounded by the plug 53 and the multilayer sheet 25 becomes Closed state. The material 25 is preformed, and the high pressure air is injected into the pressure chamber (not shown) provided on the side of the plug 53 facing the multilayer sheet 25 to be in a vacuum state, and the forming recess 511' is pressed. The plug assists the air forming. Further, the flange pressing portion 52 is pushed against the flange forming portion 51' of the mold 51 at the same time as the step to form the flange portion 23. The flange pressing plate 52 is used to bring the pressure to 1.5 kg/ The adjustment of the range of cm2 or more and 20 kg/cm2 or less is performed by the spring 54. If the pressure is less than 1.5 kg/cm2 or more than 20 kg/cm2, it is difficult to form the flange portion 23 to a desired thickness. The temperature of the flange pressing plate 52 is adjusted so as to be in the range of 10 ° C or more and 160 ° C or less. If the temperature exceeds 160 ° C, the melting point of the resin used for the sealing layer 251 is approached, which may result in The forming itself is unstable. The temperature of the flange pressing plate 52 is more preferably in the range of 10 ° C or more and 120 ° C or less. 145662.doc 16 201033093 The container body 2 formed by using the multilayer sheet 25 In the middle, the main infill and fill the liquid as the content P' The flange portion 23 of the main body 2 is heat-sealed to the lid member 30. The step of heat sealing will be described with reference to Figs. 6A to 6C. First, in Fig. 6A, the container body 2 is placed in a heat seal. The lid member 30 is placed on the sealing table 6 on the flange portion 23. Then, as shown in Fig. 6B, the heated annular sealing strip 7 is pressed from the upper surface of the lid member 30 to the flange portion. The apex portion 233. Thereby, the y-inclined portion 231 and the second inclined portion 232 are angled to deform the flange portion 23 in the direction in which the angle of the apex portion 233 is increased, and the sealing surface 71 of the sealing strip 7 is introduced. The cover member 3 is in contact with the second inclined portion 232 to form the sealing portion 40. At this time, the sealant layer 321 is melted by the heat of the weather strip 7, and the molten resin hangs down between the sealant layer 321 and the second inclined portion to form a resin deposit portion 33 having a conical shape. When the sealing of the weather strip 7 is stopped after the heat sealing is completed, the i-th inclined portion 231 and the second inclined portion 232 return to the original shape as shown in FIG. 6 (the same), and become the lid member 3〇 and the i-th inclined portion 231. The sealing state of the resin deposition portion 33 is formed therebetween. Further, the sealing portion 71 of the sealing strip 7 is pressed against the surface of the second inclined portion 232 of the flange portion 23 to form the sealing portion 40. Therefore, the sealing portion 4〇 There is no gap on the opening side, so resin deposition does not occur. The heat-sealing strength can be adjusted according to heat sealing conditions such as temperature, pressure, time, thickness of each layer, resin selection, etc. Therefore, the present embodiment can realize the following (1) The first inclined portion 231 of the flange portion 23 of the container body 20 is formed at an inclination angle of 30 with respect to the surface direction of the opening portion 22, and the second inclined portion 232 is 145662.doc • 17· 201033093 The direction of the surface of the opening 22 is formed at an inclination angle of 15. When the flange portion 23 and the lid member 30 are heat-sealed, the sealant layer 321 of the lid member 3 is melted and suspended, so that the first inclined portion 231 is 141. A resin deposition portion 33 having a conical shape is formed between the lid member 30. Since the fat accumulation portion 33 is formed only on the inner circumferential side end portion 42 side of the sealing portion 4A of the flange portion 23, the internal pressure of the packaging container 1 is increased, and the high sealing property is excellent. Further, the opening side end portion 41 side is provided. Since the resin is not formed, the easy-opening property can be maintained. That is, a packaging container excellent in both high sealing property and easy-opening property can be provided. (2) On the flange portion 23, the direction of the surface of the opening portion 22 is 3 The first inclined portion 231 is formed at an inclination angle, and the second inclined portion 232 is formed at an inclination angle of 15 with respect to the surface direction of the opening portion 22, whereby heat sealing is performed only by the sealing strip 7 having a flat surface which is generally used. The resin deposition portion 33 can be formed, that is, the resin deposition portion 33 can be formed only on the inner circumferential side end portion 42 side of the sealing portion 40 without adjusting the position of the sealing portion 4〇. According to the manufacturing method, a packaging container having a stable high sealing property and easy-opening property is manufactured. (3) Since a sealing strip which is generally used can be used, special sealing equipment is not required, thereby reducing the introduction cost and eliminating the need to change the manufacturing. Method 'and thus steady The packaging container 1 is provided. (4) Since the flange 51 is formed in the mold 51 to form the flange portion 23, it can be easily formed by a usual molding method of the container body. Since the flange portion 23 is formed to have a substantially constant thickness, it is not necessary to adjust the thickness of the multilayer sheet 25 of the container main body 2 and the thickness of each layer, such as 145662.doc -18-201033093. Therefore, the flange portion 23 can be manufactured in a simple procedure. Further, it is not necessary to increase the thickness of the flange portion 23 for forming the resin deposition portion 33, so that the material cost and the manufacturing cost can be reduced. (5) In the present embodiment, not only the mold 51 but also the convex portion is used. The edge forming portion 512 is opposed to the flange pressing plate 52 of the platen surface 521. The flange portion 23 can be pressed against the flange forming portion 512' by interposing the plurality of sheets 25 to improve the thickness precision of the flange portion 23, thereby providing a package which is easy to open and has excellent sealing properties. container. Further, the present invention is not limited to the above-described embodiments, and modifications, improvements, etc. within the scope of the object of the invention are also included in the present invention. For example, in the above embodiment, the packaging container 1 is unsealed by the sealing layer 25, but the sealing container 251 may be unsealed by the interface between the sealing layer 251 and the adjacent intermediate layer 252. In this case, it is preferable to set the peeling strength of the sealing layer 251 and the lid member 30 to be larger than the peeling strength of the sealing layer 251 and the intermediate layer 252. For example, the peel strength of the seal layer 251 and the intermediate layer 252 is set to be in the range of 〇.5 kg/15 mm or more and 2.5 kg/15 mm or less. If the peeling strength of the sealing layer 251 and the intermediate layer 252 is less than 0_5 kg/15 mm, there is a possibility that the sealing property is impaired 'again' if it exceeds 2.5 kg/15 mm', the peeling cannot be removed from the intermediate layer 252. The sealing layer 25 1 It is difficult to open the seal. The preferred range of peel strength is 55 kg/15 mm and 1.3 kg/15 mm or less. At this time, it is preferable that the thickness of the sealing layer 251 is ι 〇 μη or more and a range of 1 〇〇 μηη or less and can be appropriately adjusted depending on the size and use of the container. If the thickness of the sealing layer 251 before molding is less than 10 μm, the sealing layer 25 1 will be unstable when it is sealed with the lid member 30, so that it is difficult to peel off from the intermediate layer 252. Further, if the thickness of the sealing layer 251 exceeds 1 〇〇 μπι', the thickness is out of necessity and is not practical. The thickness of the intermediate layer 252 is not particularly limited, but is preferably formed in a range of 10 μm or more. If the thickness of the intermediate layer 252 is less than 1 μm, there is a possibility that peeling occurs between the base layer 253 and the intermediate layer 252. Further, the thickness of the intermediate layer 252 is preferably in the range of 50 μm or more. In addition, the flange portion 23 is not limited to the shape of the above-described embodiment, and the resin deposition portion 33 may be formed in the vicinity of the inner circumferential side end portion 42 of the sealing portion 40 during heat sealing. For example, as shown in Fig. 7A, the step portion 212 may be curvedly connected to the first inclined portion 231, or the first inclined portion 231 may be curvedly connected to the second inclined portion 232. Further, as shown in Fig. 7A, an edge portion 234 extending from the end portion of the second inclined portion 232 in the outer direction may be included. In the above embodiment, the resin on the lid member side is melted by heat of heat sealing, but the resin on the container side may be melted or the resin on both sides of the lid side and the container side may be melted. Further, in the above embodiment, the resin deposition portion 33 has a conical shape, but the first inclined portion 231 may be formed in a direction of 4 Å with respect to the surface of the opening portion 22. Above and 8〇. When the lid member 3 is placed on the flange portion U and heat-sealed in the state of the following inclination angles, as shown in FIG. 8, the resin deposition portion 33 is used for the lid member 30 and the first inclined portion. 231 has a shape of a resin protruding portion 34 protruding from the resin at the corner portion of the container side. Further, the resin deposition portion (4) may be formed in a shape in which the resin projecting portion 34 is covered by the sealant layer 321 of the lid member 30. The resin projecting portion 34 can be stably formed even when the contents of the container i are filled with the contents ρ. Therefore, the resin deposition portion 33 can be subjected to internal pressure to obtain a high sealing property of 145662.doc • 20· 201033093. Further, in the above embodiment, the flange portion 23 is formed by using the flange pressing plate 52, but the flange pressing plate 52 may not be used. Thereby, the container body can be formed by a simple manufacturing apparatus. Further, in the above embodiment, the shape of the packaging container 成为 is a flat circular shape, but the shape is not limited thereto, and may be a flat rectangular shape or another shape. [Examples] The present invention will be described in more detail by way of examples, but the present invention is not limited by the description of the examples. &lt;Manufacturing of Container Body&gt; A sheet used in a container body is manufactured by coextruding a multilayer sheet manufacturing apparatus by a commonly used dispenser. The sheet is a 6-layer multilayer sheet as shown below. 1. Sealing layer: Polypropylene ("El〇5GM" manufactured by Prime Polymer Co., Ltd.) 7 〇 φ by weight. /° and ethylene-acrylate-maleic anhydride copolymer ("Rexpearl ET22") from poly poly poly 〇 〇 〇 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Pri Pri Pri Pri Pri Pri 5 GM") 8 〇 - Weight ° / 〇 and polyethylene (Ube Maru-Poly Polyethylene "R-300") 20% by weight of mixed resin 3. Next layer 1: Maleic anhydride modified polypropylene (Mitsubishi Chemical Γ M〇dicAp P502") 145662.doc 21 201033093 4.EVOH layer: "Evaij" manufactured by Kuraray Co., Ltd. 5. Adhesive layer 2: same as the subsequent layer 1. 6. Substrate layer: The same as the intermediate layer, the above-mentioned multilayer sheet is used. The packaging container shown in Fig. 1A was molded by the vacuum assist molding using the plug-in + flange-cooling method used in the embodiment. The various conditions are as follows. Molding mold: a concave shape of a mold flange having a circular shape of 080 and having a width of 5 mm is used, and the outer peripheral side angle (the inclined angle B of the above embodiment) and the inner peripheral side angle of the mold flange are respectively changed (the above embodiment) The angle of inclination A) 'to make the container body (refer to Table 1:). Flange platen: a platen surface having an angle corresponding to the outer peripheral side and an inner peripheral side of each of the die flanges so as to be fitted to the die flange. &lt;Sealing of lid material&gt; As a lid material, polyethylene terephthalate (PET, 12 μηι) / biaxially stretched nylon (〇Ny, 15 μm) / non-stretched polypropylene (CPP, 6) was used.层压μιη) laminated film. The CPP surface of the laminated film is brought into contact with the flange portion of the obtained container body, and the heat is pressed against the sealing strip from the PET surface under the conditions of a temperature of 190 ° C, a sealing pressure of 150 kg / piece, and a sealing time of 12 seconds. The seal is followed. Furthermore, the seal strip uses the following two types. Χ· is formed into a ring shape of more than 75 to 065 and has a flat contact surface which is flat over the entire surface.形成. Formed as a ring of #75-065, and having a flat contact surface that is flat over the entire surface and including a portion of the protrusion 145662.doc -22-201033093 protruding toward the outer side in a condyle shape. <Other Containers> In addition to the above-described packaging containers, a packaging container described in Japanese Patent Laid-Open No. Hei 9-99933 is also prepared as a comparative example! As a comparative example 2, a packaging container described in Japanese Patent Laid-Open No. 2-219767 was prepared, and a packaging container described in Japanese Patent Laid-Open No. Hei 63-96060 was prepared as Comparative Example 3. &lt;Evaluation&gt; The packaging containers of Examples 丨 to 12 and Comparative Examples 1 to 3 shown in Table 1 below were prepared by the above method, and the internal pressure strength measurement, the peel strength measurement in the unsealing portion, and the unsealing were performed. Assessment of the feel and ease of sealing adjustment. The evaluation method and evaluation results are as follows. 1 . Measurement of internal pressure strength A burst strength tester manufactured by Sun-kagaku Co., Ltd. was used, and tested according to JIS (Japanese Industrial Standards) _z〇238. Specifically, an adhesive rubber sheet was attached to the outer surface of the lid member, and the needle was inserted into the adhesive sheet to feed air, and the strength of the container was measured. 2· Peel strength measurement The test according to jhz〇23 8 - was performed using a digital dynamometer manufactured by IMADA. Specifically, the heat-sealed packaging container of the lid material was cut into a width of 15 mm ' with respect to the flange face of the container body to 丨 35. The opening of the lid material was stretched at an angle to measure the strength at the time of peeling. 3. Unpacking The evaluation is based on the following criteria. 145662.doc •23· 201033093 A : All of them are neatly opened, and the feeling of opening is also good. B: A burr-like extension of 2 mm or less was confirmed in the sealing layer, but the opening was good. C: A burr-like extension of 2 mm or more is generated in the sealing layer, and although it is barely openable, the opening feeling is easily damaged. 4. Evaluation of the difficulty of sealing adjustments The evaluation is based on the following criteria. A: There is almost no need to make a seal adjustment. B: Adjustment of sealing temperature, etc. is required. C: The contact position of the sealing position and the sealing strip require high precision, so the position, contact, pressure, etc. must be adjusted, and the sealing machine required for these adjustments is also limited. [Table 1]

條件 評估結果 外周 内周 内壓 開封 侧角度 侧角度 密封條 強度 強度 開封感 調整 ΒΠ A(°) (MPa) (kg/15 mm) 實施例1 10 30 X 0.101 0.51 B A 實施例2 15 30 X 0.095 0.55 B A 實施例3 30 30 X 0.098 0.53 B A 實施例4 15 30 X 0.111 0.56 B A 實施例5 15 40 X 0.105 0.58 B A 實施例6 15 60 X 0,096 0.54 B A 實施例7 15 80 X 0.098 0.52 B A 實施例8 15 60 Y 0.097 0.42 A A 實施例9 45 30 X 0.096 1,24 C A 實施例10 2 30 X 0.094 0.82 C A 實施例11 15 10 X 0.035 0.57 B A 實施例12 15 85 X 0.032 0.53 C A 比較例1 - - - 0.081 0.82 C B 比較例2 - - - 0.088 1.26 C C 比較例3 - - - 0.125 0.34 A C 145662.doc •24- 201033093 根據表1可知，於實施例1〜8中，内壓強度、開封強度、 開封感以及密封調整可獲得良好之結果。特別是於實施例 8中因使用密封條γ，而獲得更良好之開封感。 又，於實施例9中由於内周側角度a小於外周側角度B， 因此開封強度略大。於實施例1〇中由於外周侧角度B較 小，因此開封強度略大。於實施例u中由於内周側角度A 較小，因此内壓強度略微低下。於實施例12中由於内周側 角度A較大，因此内壓強度略微低下。然而，實施例9〜12 中’密封調整良好，故可通用性製造。 另一方面，於比較例1以及比較例2中，開封強度以及開 封感較差’於比較例3中雖内壓強度以及開封強度於實用 方面並無問題，但於該等比較例中難以進行密封調 整。 【圖式簡單說明】 圖1A係表示本發明之實施形態之包裝容器藉由蓋材而密 封之狀態的立體圖； 圖1B係表示本發明之實施形態之包裝容器且包裝容器之 一部分被開封之狀態的立體圖； 圖2係表示於上述實施形態中密封蓋材之前之容器本體 之一部分的放大剖面圖； 圖3係圖1A之III-III剖面圖； 圖4係表示圖3之包裝容器開封後之狀態之放大剖面圖； 圖5係表示上述實施形態中製造容器本體之方法之剖面 圃， 145662.doc -25- 201033093 圖6A係表示上述實施形態中於凸緣部上密封蓋材之前之 狀態的剖面圖； 圖6B係表示±述實施形態中抵壓密封條以於凸緣部上密 封蓋材之狀態的剖面圖； 圖6C係表示上述實施形態中於凸緣部上密封蓋材後之狀 態的剖面圖； 圖7 A係表示本發明之其他實施形態之容器本體之一部分 的放大剖面圖； 圖7B係表示本發明之進而其他實施形態之容器本體之一 部分的放大剖面圖；及 圖8係表示本發明之另一進而其他實施形態之容器本體 之一部分的放大剖面圖。 【主要元件符號說明】 1 包裝容器 5 製造裝置 6 密封台 7 密封條 20 容器本體 21 凹部 22 開口部 23 凸緣部 25 多層片材 30 蓋材 31 握持部 145662.doc 201033093Conditional evaluation results Peripheral inner circumference pressure open side angle side angle seal strip strength strength unsealing feeling adjustment ΒΠ A (°) (MPa) (kg/15 mm) Example 1 10 30 X 0.101 0.51 BA Example 2 15 30 X 0.095 0.55 BA Example 3 30 30 X 0.098 0.53 BA Example 4 15 30 X 0.111 0.56 BA Example 5 15 40 X 0.105 0.58 BA Example 6 15 60 X 0,096 0.54 BA Example 7 15 80 X 0.098 0.52 BA Example 8 15 60 Y 0.097 0.42 AA Example 9 45 30 X 0.096 1,24 CA Example 10 2 30 X 0.094 0.82 CA Example 11 15 10 X 0.035 0.57 BA Example 12 15 85 X 0.032 0.53 CA Comparative Example 1 - - - 0.081 0.82 CB Comparative Example 2 - - - 0.088 1.26 CC Comparative Example 3 - - - 0.125 0.34 AC 145662.doc • 24-201033093 According to Table 1, in Examples 1 to 8, internal pressure strength, unsealing strength, and opening feeling And seal adjustments give good results. In particular, in Example 8, a seal γ was used to obtain a better opening feeling. Further, in the ninth embodiment, since the inner peripheral side angle a is smaller than the outer peripheral side angle B, the unsealing strength is slightly large. In the first embodiment, since the outer peripheral side angle B is small, the unsealing strength is slightly large. In the example u, since the inner peripheral side angle A is small, the internal pressure strength is slightly lowered. In the embodiment 12, since the inner peripheral side angle A is large, the internal pressure strength is slightly lowered. However, in Examples 9 to 12, the seal adjustment was good, so that it was produced in a versatility. On the other hand, in Comparative Example 1 and Comparative Example 2, the opening strength and the opening feeling were poor. In Comparative Example 3, although the internal pressure strength and the opening strength were not practical, they were difficult to seal in the comparative examples. Adjustment. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a perspective view showing a state in which a packaging container according to an embodiment of the present invention is sealed by a lid member; Fig. 1B is a view showing a packaging container according to an embodiment of the present invention and a part of the packaging container is unsealed; Figure 2 is an enlarged cross-sectional view showing a portion of the container body before sealing the lid member in the above embodiment; Figure 3 is a sectional view taken along line III-III of Figure 1A; and Figure 4 is a view showing the packaging container of Figure 3 after opening Fig. 5 is a cross-sectional view showing a method of manufacturing the container body in the above embodiment, 145662.doc - 25 - 201033093. Fig. 6A is a view showing a state before sealing the lid member on the flange portion in the above embodiment. Fig. 6B is a cross-sectional view showing a state in which the sealing member is pressed against the flange portion in the embodiment, and Fig. 6C shows a state in which the lid member is sealed on the flange portion in the embodiment. Figure 7A is an enlarged cross-sectional view showing a portion of a container body according to another embodiment of the present invention; and Figure 7B is a view showing a container according to still another embodiment of the present invention. An enlarged cross-sectional view of a portion of the body; and Fig. 8 is an enlarged cross-sectional view showing a portion of the container body according to still another embodiment of the present invention. [Description of main component symbols] 1 Packaging container 5 Manufacturing device 6 Sealing table 7 Sealing strip 20 Container body 21 Recessed portion 22 Opening portion 23 Flange portion 25 Multi-layer sheet 30 Cover material 31 Grip portion 145662.doc 201033093

32 積層體 33 樹脂堆積部 34 樹脂突出部 40 密封部 41 開口侧端部 42 内周側端部 51 模具 52 凸緣壓板 53 插塞 54 彈簧 71 密封面 211 收納部 212 階差部 231 第1傾斜部 232 第2傾斜部 233 頂角部 251 密封層 252 中間層 253 基材層 321 密封劑層 322 外層 511 成形凹部 512 凸緣成形部 513 第1傾斜面 145662.doc -27- 201033093 514 第2傾斜面 521 壓板面 521A 第1整合面 521B 第2整合面 A、A1、B 傾斜角度 P 内容物 145662.doc32 laminated body 33 Resin deposition portion 34 Resin protruding portion 40 Sealing portion 41 Opening side end portion 42 Inner peripheral side end portion 51 Mold 52 Flange pressure plate 53 Plug 54 Spring 71 Sealing surface 211 Storage portion 212 Step portion 231 First tilt Portion 232 second inclined portion 233 top corner portion 251 sealing layer 252 intermediate layer 253 base material layer 321 sealant layer 322 outer layer 511 forming concave portion 512 flange forming portion 513 first inclined surface 145662.doc -27- 201033093 514 second tilt Face 521 Platen surface 521A 1st integration surface 521B 2nd integration surface A, A1, B Angle of inclination P Content 145662.doc

Claims (1)

201033093 七、申請專利範圍： 1. 一種容器本體’其特徵在於： 凹部之開口部延 其係具備收納内容物之凹部以及自兮 伸設置之凸緣部者，且包括 至少包含密封層及基材層之兩層之多層片材 上述凸緣部包括： 口°卩之面方向於斜上方 弟1傾斜部’其相對於上述開 傾斜；以及201033093 VII. Patent application scope: 1. A container body characterized in that: the opening portion of the concave portion is provided with a concave portion for accommodating the content and a flange portion for self-extension, and includes at least a sealing layer and a substrate The above-mentioned flange portion of the two-layered multilayer sheet includes: the surface of the mouth is inclined obliquely upward, and the inclined portion is inclined with respect to the opening; 緣向外方向延伸 角部。 第2傾斜部，其自上述第1傾斜部之周 設置，且與上述第i傾斜部交叉而形成頂 2.如請求項1之容器本體，其中 上述第1傾斜部係相對於上述開口部之面方向以小於 9〇。之角度傾斜，上述第2傾斜部係相對於上述開口部之 面方向以小於90。之角度傾斜。 3.如請求項！之容器本體，其中 上述第1傾斜部係相對於上述開口部之面方向以15。以 上且80。以下之角度傾斜。 4. 如請求項1之容器本體，其中 上述第2傾斜部係相對於上述開口部之面方向以5。以上 且30。以下之角度傾斜。 5. 如請求項1之容器本體，其中 相對於上述開口部之面方向之上述第1傾斜部之傾斜 角度A以及上述第2傾斜部之傾斜角度b，滿足A2B之關 係0 145662.doc 201033093 6. 種包裝容器，其特徵在於包括： 如叫求項1至5中任一項之容器本體；以及 蓋材，其阻塞上述開口部，並且藉 與上述凸緣部之間。 了部來费封其 如請求項6之包裝容器，其中 於上述蓋材與上述第1傾斜部之間包含樹脂堆積邻·日 著經由該樹脂堆積部而將上述蓋材與上述第!傾斜部接 8·如請求項7之包裝容器，其中 上述樹脂堆積部係為剖面喙突形狀。 9. 如請求項7之包裝容器，其中 上述樹脂堆積部係使上述容器本體之上 脂突出之形狀。 10, 如請求項6之包裝容器，其中 藉由上述密封層凝聚剝離而予以開封。 一種容器本體之製造方法，其特徵在於： 其係如請求項1至5中任一項之容器本體之製造方法且 其係使用可將上述凹部成形、並且可將上述凸緣部之 上述第1傾斜部以及第2傾斜部成形之模具，將上述第i 傾斜部以及上述第2傾斜部成形於上述凸緣部。 12· —種容器本體之製造裝置，其特徵在於： 其係如請求項1至5中任一項之容器本體之製造裝置且 其包括模具，該模具包含：成形凹部，其係將上述容 器本體之凹部成形；第1傾斜面，其設置於上述成形凹 145662.doc 201033093 部之開口部周緣，且相對於上述開口部之面方向於斜上 方傾斜；以及第2傾斜面，其係與上述第1傾斜面交叉而 形成頂角部。The edge extends outward from the corner. The second inclined portion is provided from the periphery of the first inclined portion and intersects with the first i-inclined portion to form a top portion. The container body according to claim 1, wherein the first inclined portion is opposite to the opening portion The face direction is less than 9 inches. The angle is inclined, and the second inclined portion is less than 90 with respect to the surface of the opening. The angle is inclined. 3. As requested! In the container body, the first inclined portion is 15 with respect to the surface direction of the opening. Above and 80. The following angles are tilted. 4. The container body according to claim 1, wherein the second inclined portion is five with respect to a surface direction of the opening. Above and 30. The following angles are tilted. 5. The container body according to claim 1, wherein the inclination angle A of the first inclined portion with respect to the surface direction of the opening portion and the inclination angle b of the second inclined portion satisfy the relationship of A2B. 0 145662.doc 201033093 6 A packaging container, comprising: the container body of any one of claims 1 to 5; and a lid member that blocks the opening portion and is interposed between the flange portions. The packaging container according to claim 6, wherein the cover member and the first inclined portion are formed by the resin deposition portion between the cover member and the first inclined portion. The packaging container according to claim 7, wherein the resin deposition portion has a cross-sectional shape. 9. The packaging container according to claim 7, wherein the resin deposition portion has a shape in which the upper portion of the container body protrudes. 10. The packaging container of claim 6, wherein the sealing layer is unsealed by the sealing layer. A method of manufacturing a container body according to any one of claims 1 to 5, wherein the concave portion is formed and the first portion of the flange portion is The inclined portion and the mold for molding the second inclined portion form the i-th inclined portion and the second inclined portion on the flange portion. A manufacturing apparatus for a container body, comprising: the manufacturing apparatus of the container body according to any one of claims 1 to 5, and comprising a mold, the mold comprising: a forming recess, wherein the container body is The first inclined surface is provided on the peripheral edge of the opening of the forming recess 145662.doc 201033093, and is inclined obliquely upward with respect to the surface direction of the opening; and the second inclined surface is the same as the above 1 The inclined faces intersect to form a top corner portion. # 145662.doc# 145662.doc
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