JPS61232108A - 密封包装体及びその製造方法 - Google Patents

密封包装体及びその製造方法

Info

Publication number
JPS61232108A
JPS61232108A JP60076153A JP7615385A JPS61232108A JP S61232108 A JPS61232108 A JP S61232108A JP 60076153 A JP60076153 A JP 60076153A JP 7615385 A JP7615385 A JP 7615385A JP S61232108 A JPS61232108 A JP S61232108A
Authority
JP
Japan
Prior art keywords
package
outer edge
heat
inner edge
sealed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP60076153A
Other languages
English (en)
Inventor
朋伸 関口
文昭 永瀬
重松　英世
昭一 牧本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Aluminum KK
Original Assignee
Toyo Aluminum KK
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 Toyo Aluminum KK filed Critical Toyo Aluminum KK
Priority to JP60076153A priority Critical patent/JPS61232108A/ja
Publication of JPS61232108A publication Critical patent/JPS61232108A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/007—Forming single grooves or ribs, e.g. tear lines, weak spots
    • 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
    • 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
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a sinusoidal wave
    • 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
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/223—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a triangle wave or of a sawtooth wave, e.g. zigzagged
    • 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
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/225—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being castellated, e.g. in the form of a square wave or of a rectangular wave
    • 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
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/229—Other specific patterns not provided for in B29C66/221 - B29C66/227
    • 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
    • B29C66/2424—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 a closed polygonal chain
    • B29C66/24243—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 a closed polygonal chain forming a quadrilateral
    • B29C66/24244—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 a closed polygonal chain forming a quadrilateral forming a rectangle
    • B29C66/24245—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 a closed polygonal chain forming a quadrilateral forming a rectangle forming a square
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • 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
    • B29C66/81415—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 bevelled
    • B29C66/81417—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 bevelled being V-shaped
    • 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
    • B29C66/81415—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 bevelled
    • B29C66/81419—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 bevelled and flat
    • 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
    • B29C66/81422—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 convex
    • 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
    • B29C66/81427—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 ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、袋や使い捨て容器などで開口部が熱封緘さ
れた密封包装体及びその製造方法に関する。
〔従来の技術〕
例えば、容器本体の開口部を蓋で熱封緘した包装体に対
する要請の一つとして、手で開封容易なことがある。こ
れは、手で簡単に蓋を剥離できるということであり、そ
の為には、一般に剥離強度が１．０〜２．０ＫＦ／１５
５ｍに設計されている。
一方；熱水処理や運搬などの取扱い甲に、熱誠が外れる
のは不都合なことであるから、容易に剥離しないことも
要請される。例えば、日本農林規格（ＪＡＳ）によれば
、レトルト食品の表示を行なう場合には、パウチ状態で
封緘部の試料を１５膳巾で切り出して剥離強度を測定し
た場合、２．３　Ｋ９以上なければならないとされてい
る。云うまでもなく、これは手で容易に剥離できる限度
を越えている。
〔発明の課題〕
上記の２つの要請にさらに検討を加えると、密封包装体
の流通過程などで熱封緘部に力が加わるのは、内容物に
よってであること、即ち内部から熱封緘部を剥離するよ
うな力が加わり、従って、熱封緘部の内側からの剥離強
度が大きい程、内容物を保護する機能が優れており、ま
た、開封の際には、熱封緘部の外側から剥離力を加える
ので、外側からの剥離強度を弱くすると、開封が容易に
なることが分る。
そこで、この発明の課題は、熱封緘部の内側からの剥離
強度が大きく外側からの剥離強度が小さい密封包装体の
構造を提供することである。
〔課題の解決手段〕
上記の課題解決の為、この発明によれば、包装体の開口
部近辺に設けた熱封緘部に、加圧加熱によって凹条を形
成し、その凹条の断面形状を外側縁から内側縁の方向に
次第に深くなるようにし、かつ外側縁をジグザグの屈曲
線として内側縁をはゾ滑らかな線状としたものである。
さらに、上記のような熱封緘部を形成するため、ヒート
シールを行なう上型又は下型に凸条を形成し、この凸条
の断面形状を、凸条の外側縁から内側縁に次第に高くな
るようにし、かつ内側縁をはゾ滑らかな線状、外側縁を
ジグザグの屈曲線とし、このような熱板でヒートシール
を行なって密封包装体を形成したのである。
〔作用〕
上記のような上型及び下型でヒートシールを行なうと、
凸条の外側縁から内側縁の方向に次第に加圧力が増加す
るので、接着強度が大きくなり、また外側縁を連続的に
屈曲させであるので剥離方向に対して外側縁の接着線が
ジグザグ状になって内側縁よりも外側縁の方向からの剥
離強度が小さくなり、従って開口部の外側からは容易に
開封することができる一方、包装体の内部からは容易に
剥離しない熱封緘部が得られる。
〔実施例〕
まず、包装体を密封する為のヒートシーラ熱板について
説明する。
第１図及び第２図は、四角形の容器本体に蓋をヒートシ
ールするのに用いる熱板を示している。
図示のように、上型１０の印圧面１１には凸条１２が設
けられ、下型２０の印圧面２１は平坦になっている。図
中、Ｈはヒータである。
上記凸条１２の断面形状は、その外側縁１３から内側縁
１４の方向に次第に高さが大きくなるようにしである。
なお、第４図（イ）に示すように、外側縁１３から次第
に高さが大きくなるが、途中で平坦になってそのま＼内
側縁１４まで延びるような断面形状であってもよく、ま
た第４図（ロ）に示すように、一度頂点１６に達した後
、内側縁１４に向って次第に高さが小さくなるような形
状であってもよい。この場合には、頂点１６から内側縁
１４に向うスロープの方が外側縁１３に向うスロープよ
りも急であるのが好ましい。
次に、上記内側縁１４は、第２図、第３図のように、屈
曲のないはゾ滑らかな線状（多少の屈曲があってもよい
が）をなし、外側縁１３は、ジグザグの屈曲線を形成し
、その長さは、内側縁１４よりも３０％以上長くなって
いる。
上記外側縁１３の屈曲線は、山形状に限らず、第５図（
イ）（ロ）（／→に）に示すように、種々の形状をとる
ことができ、これらの組合せであってもよい。また、第
５図画）に示すように、外側縁１３の一部（山と山との
間）が内側縁１４と一致していてもよい。
さらに、上記外側縁１３は、第２図のように、必ずしも
全周にわたってジグザグに屈曲している必要はなく、開
封部以外の周縁部、例えばコーナ部１５（隅角部）は、
鎖線で示すように、滑らかなカーブになっていてもよい
。
上記ヒートシーラ熱板の全体形状は、図示のものに限ら
ない。包装体が容器であれば、三角形、円形、楕円形な
どの容器形状に対応してそれぞれの形状を採用すべきで
ある。また、包装体が袋であれば、上型下型とも単に直
線状のものでよい。
なお、上述の凸条１２は、下型２ｏに設けてもよい。さ
らに上型又は下型の凸条に対応して、相手型にシリコー
ンゴムの様な弾性体を載置してもよい。
上述のような熱板を用いて、包装体を密封する方法を第
６図及び第８図に示す。
図示のように、容器本体３０のフランジ３１に、蓋４ｏ
を載せ、下型２ｏでフランジ３１の下面を支持しながら
、上型１０の印圧面１１で蓋４０の上面から加圧加熱し
てヒートシールを行なうと、第７図に示すように、熱封
緘部に上型１０の凸条１２の形状に応じた凹条４１が形
成される。
上記凹条４１は、蓋４０が容器本体３０の材料の復元性
、保形性、ヒートシール条件などによって、同一の熱板
によっても、その形状は必ずしも同一にならないが、ヒ
ートシール置換には、凹条の断面形状が、その外側縁４
２から内側縁４３の方向に次第に深くなり、かつ外側縁
４２の輪郭が内側縁よ３よりも３０％以上高いジグザグ
屈曲線を画いている。また、内側縁４３は、容器本体（
資）の開口部３２と平面的にみてはゾ相似形で屈曲の少
ない滑らかな線を画いている。
なお、外側縁４２が内側縁４３の長さよりも３０％以上
長くなければ、外側からの剥離、即ち開封容易性が良好
とならない。外側縁４２の屈曲が少ないからである。
第８図に示すように、通常の平坦な印圧面１１′を有す
る上型１０′でヒートシールした°後、同図（０１のよ
うに、凸条１２を有する上型１０でヒートシールしても
よく、或はその順序を逆にしてもよい。
上記容器本体３０及び蓋４０の材料は、熱融着可能で、
ある程度の柔軟性があれば、種々のものを選択すること
ができる。単体であっても複合材であってもよい。例え
ば、蓋４０は、アルミニウム箔のような基材４４に接着
剤層４５を設けたもの、容器本体３０は、合成樹脂の成
形品などである。
密封包装体は、上記のようないわゆる容器に限らず、平
袋、自立袋のような袋、箱などの形態であってもよい。
以下、さらに詳細な実施例と比較例を挙げる。
厚さ５００μのポリプロピレンシートを加熱成形して内
容積１８００Ｈの角形容器を作成した。
また、厚さ５０μの軟質アルミニウム箔と３５μの変性
高密度ポリエチレンフィルムを熱硬化性ウレタン接着剤
で貼り合わせた後、上記容器の開口部に合せた形状に打
ち抜いて蓋を作成した。
上記容器に水を充填し、蓋を載置して、最大高さ２ｒｒ
ｕｎ、巾３ｒＩｍで外側縁が山形のジグザグ形状をもつ
凸条を設けた上型を有する熱板によってヒートシールを
行なった。条件は、温度２００℃、圧力３１’ｆ／ｃｉ
、時間１秒である。この密封容器をさらに１２０℃で３
０分、レトルト殺菌した。
比較例として、同様の容器及び蓋を用い、同様の条件で
従来の平坦な熱板を用いてヒートシールを行ない、同様
にレトルト殺菌した。
いずれの場合も、手で容易に蓋を剥離することができた
が、熱封緘部から１５履巾の試料を切り出して内側（容
器内部側）からの剥離強度をみると、実施例のものは２
．５〜４．　ＯＹｌ／　１５　ｒｅ、比較例のものは、
０．９〜１．２に？／１５団であった。
〔効果〕
この発明によれば、以上の様に、密封包装体の熱封緘部
に、加熱加圧によって凹条を形成し、その断面形状を外
側縁から内側線に向って次第に深くなるようにし、かつ
内側縁をはゾ滑らかな線状外側縁を屈曲線としたので、
包装体の外側からの剥離強度が弱くなり、容易に開封す
ることができ　　　。
る一方、内側からの剥離強度が大きくなって、内容物を
充分保護することができ、従来では全く見　　　−られ
なかった強い密封性と開封容易性を付与することが可能
となる。
また、このような包装体の製造方法においては従来とほ
とんど同じ工程で済むのでコスト面での負坦がなく、し
かも従来方法では得られなかった優れた性能の包装体が
得られる。
【図面の簡単な説明】
第１図はヒートシーラ熱板の断面線図、第２図は同上の
上型の平面線図、第３図は上型の一部拡大斜視図、第４
図は同上の４−４線に沿った拡大断面図、第５図は上型
に設けた凸条の輪郭を示す平面線図、第６図は容器の密
封方法を示す部分拡大断面図、第７図は密封容器の断面
線図、第８図は第６図の他の密封方法を示す部分拡大断
面図である。 １ｏ・・・上型、１１・・・印圧面、１２・・・凸条、
１３・・・凸条の外側縁、１４・・・凸条の内側縁、２
０・・・下型、２１・・・印圧面、３ｏ・・・密封本体
、３１・・・フランジ、４０・・・蓋、４１・・・凹条
、４２・・・凹条の外側縁、４３・・・凹条の内側縁 特許出願人　　東洋アルミニウム株式会社同　代理人　
　弁理士　　鎌　１）文　二第１図 粂 第５図 第６図 第７図 第８図

Claims (2)

    【特許請求の範囲】
  1. （１）開口部が熱封緘によつて密封された包装体におい
    て、熱封緘部に加熱加圧によつて凹条が形成され、この
    凹条の断面が、凹条の外側縁から内側縁の方向に次第に
    深くなるようにし、かつ内側縁がほゞ滑らかな線状で外
    側縁が屈曲線を画くようにしたことを特徴とする密封包
    装体。
  2. （２）包装体内に内容物を収納した後、その開口部をヒ
    ートシーラ熱板で熱封緘して密封包装体を製造する方法
    において、上記熱板の上型又は下型には凸条が設けられ
    、この凸条はその外側縁から内側縁に次第に高さが大き
    くなり、かつ内側縁はほゞ滑らかな線状で外側縁が屈曲
    線をなし、この上型及び下型を用いて包装体の開口部近
    辺を加熱加圧することを特徴とする密封包装体の製造方
    法。
JP60076153A 1985-04-08 1985-04-08 密封包装体及びその製造方法 Pending JPS61232108A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60076153A JPS61232108A (ja) 1985-04-08 1985-04-08 密封包装体及びその製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60076153A JPS61232108A (ja) 1985-04-08 1985-04-08 密封包装体及びその製造方法

Publications (1)

Publication Number Publication Date
JPS61232108A true JPS61232108A (ja) 1986-10-16

Family

ID=13597079

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JPS61232108A (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05213375A (ja) * 1992-01-23 1993-08-24 Sun A Chem Ind Co Ltd 易開封性密封包装体の製造方法および易開封性密封包装体
JP2002114271A (ja) * 2000-07-31 2002-04-16 Metal Color:Kk 易開封性を有する熱封緘用蓋材
JP2006231139A (ja) * 2005-02-23 2006-09-07 Gs Yuasa Corporation:Kk 膜エレメント
JP2012254823A (ja) * 2011-06-10 2012-12-27 Showa Denko Packaging Co Ltd 密封容器のヒートシール方法および装置
WO2014065353A1 (ja) * 2012-10-25 2014-05-01 出光ユニテック株式会社 シール盤、シール方法、シール装置、および容器
WO2015002106A1 (ja) * 2013-07-01 2015-01-08 サントリー食品インターナショナル株式会社 シールヘッドおよび同シールヘッドを用いて封止された容器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS577975A (en) * 1980-06-17 1982-01-16 Matsushita Electric Ind Co Ltd Sollar battery

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS577975A (en) * 1980-06-17 1982-01-16 Matsushita Electric Ind Co Ltd Sollar battery

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05213375A (ja) * 1992-01-23 1993-08-24 Sun A Chem Ind Co Ltd 易開封性密封包装体の製造方法および易開封性密封包装体
JP2002114271A (ja) * 2000-07-31 2002-04-16 Metal Color:Kk 易開封性を有する熱封緘用蓋材
JP2006231139A (ja) * 2005-02-23 2006-09-07 Gs Yuasa Corporation:Kk 膜エレメント
JP2012254823A (ja) * 2011-06-10 2012-12-27 Showa Denko Packaging Co Ltd 密封容器のヒートシール方法および装置
WO2014065353A1 (ja) * 2012-10-25 2014-05-01 出光ユニテック株式会社 シール盤、シール方法、シール装置、および容器
WO2015002106A1 (ja) * 2013-07-01 2015-01-08 サントリー食品インターナショナル株式会社 シールヘッドおよび同シールヘッドを用いて封止された容器
JP2015009881A (ja) * 2013-07-01 2015-01-19 大日本印刷株式会社 シールヘッドおよび同シールヘッドを用いて封止された容器
CN105473452A (zh) * 2013-07-01 2016-04-06 三得利食品饮料株式会社 密封头及使用该密封头而被密封的容器
US9902545B2 (en) 2013-07-01 2018-02-27 Suntory Beverage & Food Limited Seal head and container sealed with using the seal head
TWI622530B (zh) * 2013-07-01 2018-05-01 三得利食品飲料股份有限公司 密封頭及使用該密封頭進行封裝之容器

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