JPH07148224A - 輸液用バッグ及びその製造方法 - Google Patents

輸液用バッグ及びその製造方法

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Publication number
JPH07148224A
JPH07148224A JP32319893A JP32319893A JPH07148224A JP H07148224 A JPH07148224 A JP H07148224A JP 32319893 A JP32319893 A JP 32319893A JP 32319893 A JP32319893 A JP 32319893A JP H07148224 A JPH07148224 A JP H07148224A
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JP
Japan
Prior art keywords
bag
drainage
constituent members
adhesive
bag member
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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.)
Granted
Application number
JP32319893A
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English (en)
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JP3587545B2 (ja
Inventor
Masatoshi Watanabe
辺 正 年 渡
Shunji Ichikawa
川 俊 二 市
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.)
SB Kawasumi Laboratories Inc
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Kawasumi Laboratories Inc
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Priority to JP32319893A priority Critical patent/JP3587545B2/ja
Publication of JPH07148224A publication Critical patent/JPH07148224A/ja
Application granted granted Critical
Publication of JP3587545B2 publication Critical patent/JP3587545B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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

Landscapes

  • 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)

Abstract

(57)【要約】 （修正有） 【目的】袋部材と排液部材とからなる輸液用バッグに関
し、特に袋部材と排液部材の接着手段を改良した輸液用
バッグおよびその製造方法を提供する。 【構成】［１］袋部材と袋部材に融着される排液部材よ
り構成される輸液用バッグにおいて、袋部材と排液部材
の間に袋部材と排液部材の構成部材よりも融点が低くか
つ前記構成部材と相溶性の良い構成部材からなる接着部
材を介して袋部材と排液部材を融着した輸液用バッグ。
［２］（１）中央に排液部材の挟持部が形成され、該挟
持部に溝部が形成され、前記挟持部の両側に袋部材の押
圧面が形成された上下の金型の間に、上から順に袋部材
／接着部材／排液部材／接着部材／袋部材の各構成部材
を配置する工程、（２）前記上下の金型より前記各構成
部材を挟持して熱を印加する工程、（３）前記各構成部
材の溶融部分を前記溝部に吸収する工程、（４）前記各
構成部材を融着する工程、から成る製造方法。

Description

【発明の詳細な説明】
【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およびその製造方法を提
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】
［１］本発明は袋部材と袋部材に融着される排液部材よ
り構成される輸液用バッグにおいて、袋部材と排液部材
の間に袋部材と排液部材の構成部材よりも融点が低くか
つ前記構成部材と相溶性の良い構成部材からなる接着部
材を介して袋部材と排液部材を融着した輸液用バッグを
提供する。
【０００４】［２］本発明は次の各工程よりなる輸液用
バッグの製造方法を提供する。 （１）中央に排液部材の挟持部が形成され、該挟持部に
溝部が形成され、前記挟持部の両側に袋部材の押圧面が
形成された上下の金型の間に、上から順に袋部材／接着
部材／排液部材／接着部材／袋部材の各構成部材を配置
する工程、（２）前記上下の金型より前記各構成部材を
挟持して熱を印加する工程、（３）前記各構成部材の溶
融部分を前記溝部に吸収する工程、（４）前記各構成部
材を融着する工程、
【０００５】
【実施例】図１は本発明の輸液用バッグ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の基部には小径部
９が形成され、小径部９と袋部材２はその間に接着部材
４を介在することにより融着されている。
【０００６】接着部材４の構成部材は、前記袋部材２と
排液部材３の構成部材よりも融点が低くかつこれらの各
構成部材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、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接着部材と
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、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接着部材４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】バッグ１は次の方法により製造される。ヒ
ートシール金型５、５の間に上から袋部材２／接着部材
４／排液部材３／接着部材４／袋部材２の順に配置し
て、上下の金型より挟持して、熱を印加し、前記各構成
部材の溶融部分を前記溝部７に吸収させ、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】本発明の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
【符合の説明】 １ 輸液用バッグ ２ 袋部材 ３ 排液部材 ４ 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 小径部
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｌ 22:00 23:00

Claims (2)

    【特許請求の範囲】
  1. 【請求項１】 袋部材と袋部材に融着される排液部材よ
    り構成される輸液用バッグにおいて、袋部材と排液部材
    の間に袋部材と排液部材の構成部材よりも融点が低くか
    つ前記構成部材と相溶性の良い構成部材からなる接着部
    材を介して袋部材と排液部材を融着したことを特徴とす
    る輸液用バッグ。
  2. 【請求項２】 次の各工程よりなる輸液用バッグの製造
    方法。 （１）中央に排液部材の挟持部が形成され、該挟持部に
    溝部が形成され、前記挟持部の両側に袋部材の押圧面が
    形成された上下の金型の間に、上から順に袋部材／接着
    部材／排液部材／接着部材／袋部材の各構成部材を配置
    する工程、（２）前記上下の金型より前記各構成部材を
    挟持して熱を印加する工程、（３）前記各構成部材の溶
    融部分を前記溝部に吸収する工程、（４）前記各構成部
    材を融着する工程、
JP32319893A 1993-11-29 1993-11-29 輸液用バッグの製造方法 Expired - Fee Related JP3587545B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32319893A JP3587545B2 (ja) 1993-11-29 1993-11-29 輸液用バッグの製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32319893A JP3587545B2 (ja) 1993-11-29 1993-11-29 輸液用バッグの製造方法

Publications (2)

Publication Number Publication Date
JPH07148224A true JPH07148224A (ja) 1995-06-13
JP3587545B2 JP3587545B2 (ja) 2004-11-10

Family

ID=18152150

Family Applications (1)

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Country Status (1)

Country Link
JP (1) JP3587545B2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
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