JPS6055361B2 - 製袋充填包装におけるスパウト装着方法 - Google Patents

製袋充填包装におけるスパウト装着方法

Info

Publication number
JPS6055361B2
JPS6055361B2 JP54095945A JP9594579A JPS6055361B2 JP S6055361 B2 JPS6055361 B2 JP S6055361B2 JP 54095945 A JP54095945 A JP 54095945A JP 9594579 A JP9594579 A JP 9594579A JP S6055361 B2 JPS6055361 B2 JP S6055361B2
Authority
JP
Japan
Prior art keywords
film
spout
bag making
filling
attaching
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.)
Expired
Application number
JP54095945A
Other languages
English (en)
Other versions
JPS5623404A (en
Inventor
誠 久保田
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.)
CKD Corp
Original Assignee
CKD Corp
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 CKD Corp filed Critical CKD Corp
Priority to JP54095945A priority Critical patent/JPS6055361B2/ja
Publication of JPS5623404A publication Critical patent/JPS5623404A/ja
Publication of JPS6055361B2 publication Critical patent/JPS6055361B2/ja
Expired 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
    • B29C65/02—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
    • B29C65/02—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
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8246—Pressure tests, e.g. hydrostatic pressure tests
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
    • B29C66/4742—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat said single elements being spouts
    • B29C66/47421—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat said single elements being spouts said spouts comprising flanges
    • 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
    • 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
    • B29C66/83—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
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0009—Cutting out
    • B29C2793/0018—Cutting out for making a hole
    • 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
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Description

【発明の詳細な説明】 本発明は、製袋充填包装工程において、製袋および充填
工程と、包装用フィルムにスパウトを装着する工程とを
一貫した工程に構成したことを特徴とする製袋充填包装
におけるスパウト装着方法に関する。
製袋充填方式によつて包装された液体状の飲料または調
味料は、一旦開封すると再密封が困難であるので、一部
を使用した場合でも全部を取出す必要が生ずる。
このため予め袋体にスパウト（注ぎ口）を取付けておい
て、適時スパウトの栓を開閉するようにしたスパウト付
のものがあるが、袋体にスパウトを取付ける工程は必ず
しも信頼性の高いものではなく、取付部の密着不良など
によつて液洩れが生ずる虞れがあつた。このため従来は
スパウト取付後の袋体を別工程で検査し、選別する工程
が必要であつて、スパウト取付工程と、製袋および充填
工程は一貫して行なえない不都合があり、したがつてこ
の種の製袋充填包装においては製造能率が向上しない欠
点があつた。本発明の目的は、スパウトを必要とする従
来の製袋充填包装における欠点を排除させることであり
、そのために、信頼性の高いスパウト装着手段を得て、
スパウトの取付けと製袋および充填工程とを一貫作業と
して行なわせるように構成したことにある。
本発明は、包装袋を製造する工程に先立つて包装袋用フ
ィルムにスパウトを装着する方法において、該フィルム
の上下に配置したパンチおよびダイイによつて該フィル
ムにスパウト装着用の孔をあけ、該フィルムの孔内にス
パウトを一個ずつ供’給し、ヒータを内蔵した上型と下
型とを該フィルムの上下に組合せ配置して該フィルム上
のスパウト周縁部を挾圧して該フィルムに溶着固定し、
該スパウトを被うカップ状の上型を該フィルムの片面に
圧接してフィルムのどちらか１面側で該スパ・ウトを囲
む空間を真空引きし、該空間内の圧力の変動を検出して
該スパウトと該フィルムとの接合部での洩れを検知する
ように検出されている。
以下図面を参照して本発明の実施例について説明する。
材料となるフィルムｆを水平方向に送り出し、まず穿孔
工程１においてスパウト取付用の孔ｈを穿孔する。
すなわち組を成すパンチ１１とダイ１２とをフィルムｆ
の上下に対向して組合せ配置し、孔ｈをフィルムの流れ
方向へ所定の間隔で打抜く。次のスパウト供給工程２で
は、穿孔された孔ｈに対してスパウトｓを供給する。該
スパウトｓはパーツフィーダ２１によつて１個ずつ供給
され、蓋Ｕが螺合された開閉用口ｔを下に向けた逆さ姿
勢で前記孔ｈに自動的に嵌合される。孔に嵌合されたス
パウトは次の溶着工程３に送られる。
この溶着工程は、第２図にも示すようにヒータ３２を内
蔵した上型３１と、該上型に組合う下型３３とが、フィ
ルムの上下の位置に対向配置され、シリンダ（図示せず
）等の作動により圧接されて、フィルムｆとスパウトｓ
の接合面を熱溶着する。溶着工程を経たスパウトは、次
の検査工程４に移動する。検査工程は第３図にも示すよ
うに空間４２を有するカップ状の上型４１と、該上型４
１の周縁に組合う下型４３とがシリンダ（図示せず）の
作動によつて圧接され、上型の空間４２を密封空間に保
持する。
前記空間４２には真空装置（図示せ−ず）を接続した排
気管４４と、真空スイッチ４５とが連通接続してあり、
該空間４２が密封されたと同時に真空装置によつて空間
内が真空引きされる。したがつてスパウトｓとフィルム
ｆとの溶着状態が完全である場合は、真空引と共に前記
空間！４２内の圧力は次第に低下し、やがて真空スイッ
チ４５が作動して密封状態を確認させる。しかるにスパ
ウトとフィルムとの溶着状態が不完全である場合は、真
空引きと同時にフィルムの下側空気が前記空間４２内へ
吸い込まれ、この空気洩れによつて空間４２内の圧力が
高まらないため真空スイッチ４５が作動せず、溶着の不
完全状態が検知される。検査工程４を経たフィルムは製
袋および充填工程５に送られて公知の製袋作業および充
填作業が行なわれるが、検査工程４で溶着不良が検知さ
れ”た場合は、充填装置に信号を指令して充填を行なわ
せない。
なお本発明法に組合せる製袋充填装置は、製袋器５１ど
充填バイブ５２とを一体にした公知の竪型の装置を使用
し側縁シール装置５３および端縁シール装置５４により
製袋と充填とを同時に行なうようにする。本発明のスパ
ウト取付け工程における四つの作業工程は等間隔で配置
され、フィルムｆが１ビットずつ間欠的に送られて各工
程が処理される。
また製袋、充填工程も前記スパウト取付け工程と同期し
て行なわれる。のように本発明法によれば、スパウトの
装着と製袋、充填を一貫作業として自動的に行なうこと
ができるので、製造能率は著しく向上する。
【図面の簡単な説明】
第１図は本発明によるスパウト装着工程と製袋、充填工
程の全体構成を示す斜視説明図、第２図はスパウト溶着
工程の断面説明図、第３図は検査工程の断面説明図。 １：穿孔工程、２：スパウト供給工程、３：溶着工程、
４：検査工程、５：製袋、充填工程、ｆ：フイルム、ｓ
：スパウト。

Claims (1)

    【特許請求の範囲】
  1. １ 包装袋を製造する工程に先立つて包装袋用フィルム
    にスパウトを装着する方法において、該フィルムの上下
    に配置したパンチおよびダイによつて該フィルムにスパ
    ウト装着用の孔をあけ、該フィルムの孔内にスパウトを
    一個ずつ供給し、ヒータを内蔵した上型と下型とを該フ
    ィルムの上下に組合せ配置して該フィルム上のスパウト
    周縁部を挾圧して該フィルムに溶着固定し、該スパウト
    を被うカップ状の上型を該フィルムの片面に圧接してフ
    ィルムのどちらか１面側でスパウトを囲む空間を真空引
    きし、該空間内の圧力の変動を検出して該スパウトと該
    フィルムとの接合部での洩れを検出することを特徴とす
    る製袋充填包装におけるスパウト装着方法。
JP54095945A 1979-07-27 1979-07-27 製袋充填包装におけるスパウト装着方法 Expired JPS6055361B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54095945A JPS6055361B2 (ja) 1979-07-27 1979-07-27 製袋充填包装におけるスパウト装着方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54095945A JPS6055361B2 (ja) 1979-07-27 1979-07-27 製袋充填包装におけるスパウト装着方法

Publications (2)

Publication Number Publication Date
JPS5623404A JPS5623404A (en) 1981-03-05
JPS6055361B2 true JPS6055361B2 (ja) 1985-12-04

Family

ID=14151391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54095945A Expired JPS6055361B2 (ja) 1979-07-27 1979-07-27 製袋充填包装におけるスパウト装着方法

Country Status (1)

Country Link
JP (1) JPS6055361B2 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152131A (ja) * 1983-02-14 1984-08-30 ユニチカ株式会社 口栓付きフイルム包装物の製造装置
CN105644865B (zh) * 2016-03-23 2018-11-16 佛山科学技术学院 一种壶嘴安装方法及装置
JP6849429B2 (ja) * 2016-12-27 2021-03-24 大倉工業株式会社 フィルムと接合部材の接合方法及びそれに用いられる受台

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JPS5623404A (en) 1981-03-05

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