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JP3587545B2 - 輸液用バッグの製造方法 - Google Patents

輸液用バッグの製造方法 Download PDF

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JP3587545B2
JP3587545B2 JP32319893A JP32319893A JP3587545B2 JP 3587545 B2 JP3587545 B2 JP 3587545B2 JP 32319893 A JP32319893 A JP 32319893A JP 32319893 A JP32319893 A JP 32319893A JP 3587545 B2 JP3587545 B2 JP 3587545B2
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drainage
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JPH07148224A (ja
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辺 正 年 渡
川 俊 二 市
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SB Kawasumi Laboratories Inc
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    • 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
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • 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
    • B29C66/01—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
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B29C66/50—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
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B29C66/53261—Enclosing tubular articles between substantially flat elements
    • B29C66/53262—Enclosing spouts between the walls of bags, e.g. of medical bags
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835—Heat curing adhesives
    • 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
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7148—Blood bags, medical bags

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【０００１】
【産業上の利用分野】
本発明は、袋部材と排液部材とからなる輸液用バッグの製造方法に関し、特に袋部材と排液部材の接着手段を改良した輸液用バッグの製造方法を提供する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
ポリオレフィン製の輸液用バッグは、外部加熱によって熱溶着され製造されているが外部加熱であるため、排液部材と袋部材のように、形状や材質が異なる場合は直接加熱金型と接する袋部材が溶けすぎ、袋部材が肉薄になり溶着部の強度が低下したり、加熱不足により袋部材と排液部材との間に微小の隙間ができ、内容液のリークが発生していた。そこで本発明者は以上の課題を解決するために鋭意検討を重ねた結果次の発明に到達した。
【０００３】
【課題を解決するための手段】
本発明は、次の各工程よりなる袋部材（２）と排液部材（３）の間に袋部材（２）と排液部材（３）の材質よりも融点が低くかつ前記袋部材（２）と前記排液部材（３）の両材質と相溶性の良い材質からなるシート状接着部材（４）を排液部材（３）の基部（９）外周から該基部（９）の両側の袋部材（２）に帯状に連続して融着した輸液用バッグ（１）の製造方法を提供する。
［１］中央に排液部材（３）の基部（９）を挟持する挟持部（６）が形成され、該挟持部（６）に溝部（７）が形成され、前記挟持部（６）の両側に袋部材（２）の押圧面（８）が形成された上下の金型（５、５）の間に、上から順に袋部材（２）／シート状接着部材（４）／排液部材（３）の基部（９）／シート状接着部材（４）／袋部材（２）の各構成部材を配置するとともに、前記袋部材（２）と前記排液部材（３）の基部（９）との間に挟んだ前記シート状接着部材（４）分の肉厚を前記上下の金型（５、５）の溝部（７、７）に吸収することができるように、前記シート状接着部材（４、４）を前記上下の金型（５、５）の前記溝部（７、７）形成位置に配置する工程、
［２］前記上下の金型（５、５）により前記各構成部材を挟持して熱を印加する工程、
【０００４】
削除
【０００５】
【実施例】
図１は本発明により製造される輸液用バッグ１（以下「バッグ１」）の概略図である。バッグ１はポリオレフィン製（例えばポリエチレン、ポリプロピレン等）の袋部材２と袋部材２に融着される排液部材３（袋部材２と同じ材質）より構成されている。排液部材３の基部９には小径部が形成され、当該基部９と袋部材２はその間にシート状接着部材４を介して融着されている。さらに詳述すれば、シート状接着部材４は、排液部材３の基部９外周から該基部９の両側の袋部材２に帯状に連続して融着されている。
【０００６】
シート状接着部材４の材質は、前記袋部材２と排液部材３の材質よりも融点が低くかつこれらの両材質と相溶性の良いものが使用される。融点が排液部材３、袋部材２よりも高いと、ヒートシールにおいて袋部材２のほうが溶けすぎてしまい、ピンホール等の発生につながる。また排液部材３、袋部材２との相溶性が悪いと融点が低く、シート状接着部材４が先に溶けていても接着強度は低いものとなる。
本発明で使用されるシート状接着部材４としては、ポリプロピレン、ポリエチレン、エチレン−酢酸ビニル共重合体、エチレン−アクリル酸エステル共重合体、エチレン−一酸化炭素共重合体、エチレン−αオレフィン共重合体、スチレン系エラストマー、オレフィン系エラストマー、エチレン・メチルメタクリレート、エチレン・アクリル酸エステル・無水マレイン酸共重合体等が良い。より好ましくは融点が１０５℃以下のものが良い。
【０００７】
図２は本発明の輸液用バッグ１の製造方法を示す概略図である。図２において５はヒートシール金型で中央に排液部材３の挟持部６が形成され、該挟持部６に袋部材２と排液液部材３の間にシート状接着部材４を挟んだ分の肉厚を吸収できる程度の溝部７が形成されている。さらに前記挟持部６の両側に袋部材２の押圧面８が形成されている。溝部７を形成することにより、シート状接着部材４の肉厚を確保することができ、熱溶着により溶融した部分を溝部７内に吸収して排液部材３と袋部材２との間からのはみ出しをなくすことができ、排液部材３と袋部材２の接着強度を向上させることができる。
【０００８】
輸液用バッグ１は次の方法により製造される。
（１）前記ヒートシール金型５、５の間に上から袋部材２／シート状接着部材４／排液部材３の基部９／シート状接着部材４／袋部材２の順に配置するとともに、前記袋部材２と前記排液部材３の基部９との間に挟んだ前記シート状接着部材４分の肉厚を前記上下の金型５、５の溝部７、７に吸収することができるように、前記シート状接着部材４、４を前記上下の金型５、５の前記溝部７、７形成位置に配置する。
（２）前記上下の金型５、５により前記各構成部材を挟持して熱を印加し、前記各構成部材を融着する。
【０００９】
【発明の作用効果】
排液部材と袋部材との接着強度を向上させることができ各構成部材の接着部からの液体のリークを防止することができる。
【図面の簡単な説明】
【図１】本発明により製造される輸液用バッグの概略図
【図２】本発明の輸液用バッグの製造方法を示す概略図
【符号の説明】
１ 輸液用バッグ
２ 袋部材
３ 排液部材
４ シート状接着部材
５ ヒートシール金型
６ 排液部材の挟持部
７ 溝部
８ 袋部材の押圧面
９ 基部（小径部）

Claims (1)

  1. 次の各工程よりなる袋部材（２）と排液部材（３）の間に袋部材（２）と排液部材（３）の材質よりも融点が低くかつ前記袋部材（２）と前記排液部材（３）の両材質と相溶性の良い材質からなるシート状接着部材（４）を排液部材（３）の基部（９）外周から該基部（９）の両側の袋部材（２）に帯状に連続して融着した輸液用バッグ（１）の製造方法。
    ［１］中央に排液部材（３）の基部（９）を挟持する挟持部（６）が形成され、該挟持部（６）に溝部（７）が形成され、前記挟持部（６）の両側に袋部材（２）の押圧面（８）が形成された上下の金型（５、５）の間に、上から順に袋部材（２）／シート状接着部材（４）／排液部材（３）の基部（９）／シート状接着部材（４）／袋部材（２）の各構成部材を配置するとともに、前記袋部材（２）と前記排液部材（３）の基部（９）との間に挟んだ前記シート状接着部材（４）分の肉厚を前記上下の金型（５、５）の溝部（７、７）に吸収することができるように、前記シート状接着部材（４、４）を前記上下の金型（５、５）の前記溝部（７、７）形成位置に配置する工程、
    ［２］前記上下の金型（５、５）により前記各構成部材を挟持して熱を印加する工程、
JP32319893A 1993-11-29 1993-11-29 輸液用バッグの製造方法 Expired - Fee Related JP3587545B2 (ja)

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CN116534437A (zh) * 2023-05-29 2023-08-04 广州立白企业集团有限公司 一种用于软包装的旋盖嘴及含有其的包装袋

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JP2022541770A (ja) * 2019-07-22 2022-09-27 テルモ株式会社 血液バッグシステム及びその製造方法
JP7457786B2 (ja) 2019-07-22 2024-03-28 テルモ株式会社 血液バッグシステム

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