JPS601179B2 - 樹脂シ−トの熱溶着法 - Google Patents

樹脂シ−トの熱溶着法

Info

Publication number
JPS601179B2
JPS601179B2 JP53065359A JP6535978A JPS601179B2 JP S601179 B2 JPS601179 B2 JP S601179B2 JP 53065359 A JP53065359 A JP 53065359A JP 6535978 A JP6535978 A JP 6535978A JP S601179 B2 JPS601179 B2 JP S601179B2
Authority
JP
Japan
Prior art keywords
sheets
softening temperature
sheet
synthetic resin
resin film
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
JP53065359A
Other languages
English (en)
Other versions
JPS54156078A (en
Inventor
正博 光井
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.)
KAUPATSUKU KK
Original Assignee
KAUPATSUKU 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 KAUPATSUKU KK filed Critical KAUPATSUKU KK
Priority to JP53065359A priority Critical patent/JPS601179B2/ja
Publication of JPS54156078A publication Critical patent/JPS54156078A/ja
Publication of JPS601179B2 publication Critical patent/JPS601179B2/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
    • 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
    • B29C65/02—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
    • 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
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • B29C66/70—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明は、樹脂シート、特に厚手のものを熱落着する方
法の改良に関する。
従来、厚手の複合樹脂シ・−トを熱落着する場合、２枚
の重合した複合樹脂シートを溶着台のゴム坂上に鼓暦し
、ゴム板上の両複合樹脂シートの適宜個所に加熱された
熔着片を両複合樹脂シートの上面側から押し当てて熱圧
し、両複合樹脂シートを熱落着する。
しかし、熱溶着された両複合樹脂シートは、大きく轡曲
してしまい、見栄えの悪いものとなる。本発明の目的は
、樹脂シート、特に厚手のものを熱溶着する場合、樹脂
シートが熱溶着に伴なつて轡曲する量を減少させること
である。
本発明者は、かかる場合に樹脂シートが熱溶着に伴なつ
て大きく轡曲する原因は熱落着の際両樹脂シートの熱的
状態が大きく異なり従って熱による変形状態が大きく異
なることに起因しているのであろうと推察して、加熱溶
着片を押し当てて熱圧する側の複合樹脂シートの外面と
なるシート面に積層する合成樹脂フィルムに軟化温度（
軟化点）の高いものを用い、反対側のそれに軟化温度の
低いものを用いたところ、複合樹脂シートが熱溶着に伴
なつて轡曲する量が減少したのである。
本発明は、上記の実験結果に基いて完成されたものであ
る。即ち、軟化温度の高い合成樹脂フィルムを一方のシ
ート面に積層した複合樹脂シートと、軟化温度の低い合
成樹脂フィルムを一方のシート面に積層した複合樹脂シ
ートとを、両シートの上記合成樹脂フィルム側のシート
面を外側にして重合し、両シートを、軟化温度の高い合
成樹脂フィルム側のシート面側から軟化温度の低い合成
樹脂フィルム側のシート面側へ熱圧して、両シートの外
側のシート面の合成樹脂フィルムのいずれよりも軟化温
度が低い内側のシート面の同種の合成樹脂フィルム同志
を落着することを特徴とする樹脂シートの熱溶着法であ
る。本発明に係る樹脂シートの熱顔着法によると、樹脂
シートが熱溶着に伴なつて費曲する量が少ない。
次に、本発明に係る樹脂シートの熱溶着法を食品の包装
に用いた実施例について説明する。
軟化温度が２２０００で厚さが６０仏のナイロン樹脂フ
ィルムＮと軟化温度が１４００００で厚さが１４０ムの
ポリプロピレン樹脂フィルムｐを積層した複合樹脂シー
トーに短円柱状の深絞り部２をナイロン樹脂フィルムＮ
側に突出して形成し、深絞り部２に短円柱状のハムを挿
隊した複合樹脂シート１と、軟化温度が１６０００で厚
さが６０〆のナイロン樹脂フィルムｎと軟化温度が１４
０ＣＣで厚さが１４０ムのポリプロピレン樹脂フィルム
ｐを積層した複合樹脂シート３を、ポリプロピレン樹脂
フィルムｐ側を内側にして重合し、複合樹脂シートーの
ハムを挿隊した深絞り部２の開□を複合樹脂シート３で
閉鎖し、両複合樹脂シート１，３を溶着台のゴム板上に
深絞り部２を上側にして戴暦し、溶着台上の両複合樹脂
シートー，３の深絞り部２を取り囲む枠形状部４に、温
度１８０００に加熱された溶着片を上側の複合樹脂シー
トーの上面側から押し当てて、両複合樹脂シート１，３
の重合した枠形状部４を上側の軟化温度の高いナイロン
樹脂フィルムＮ側から下側の軟化温度の低いナイロン樹
脂フィルムｎ側へ熱圧し、両複合樹脂シ−ト１，３の枠
形状部４をその内側の溶着性に優れたポリプロピレン樹
脂フィルムｐ，ｐ同志を溶着して熱溶着し、短円柱状の
ハムを両複合樹脂シートー，３で密封包菱する。ハムを
密封包装した両複合樹脂シート１，３は、その枠形状部
４の熱落着に伴なつて轡曲する量が少ない。
樹脂シートの熱溶着においては、樹脂シートの厚さが厚
くなる程、樹脂シートが熱落着に伴なつて轡曲する量が
大きくなり、実用にならなくなる。
従来、実用になるものでは、樹脂シートの厚さは最大１
５０ム弱位である。ところが、本発明の熱落着法による
と、１５０仏を越える厚さ、実施例においては２００仏
の厚さの樹脂シートでも実用になる。
【図面の簡単な説明】
第１図は本発明の実施例の熱熔着法に用いる複合樹脂シ
ートの拡大一部側面図であり、第２図は同例の熱溶着法
を用いてハムを密封包装した状態を示す斜視図である。 １：複合樹脂シート、Ｎ：軟化温度の高いナイロン樹脂
フィルム、ｐ：ポリプロピレン樹脂フィルム、２：深絞
り部、３：複合樹脂シート、ｎ：軟化温度の低いナイロ
ン樹脂フィルム、ｐ：ポリプロピレン樹脂フィルム、４
：枠形状部（溶着部）。オー図 オ２図

Claims (1)

  1. 【特許請求の範囲】 １ 軟化温度の高い合成樹脂フイルムを一方のシート面
    に積層した複合樹脂シートと、軟化温度の低い合成樹脂
    フイルムを一方のシート面に積層した複合樹脂シートと
    を、両シートの上記合成樹脂フイルム側のシート面を外
    側にして重合し、両シートを、軟化温度の高い合成樹脂
    フイルム側のシート面側から軟化温度の低い合成樹脂フ
    イルム側のシート面側へ熱圧して、両シートの外側のシ
    ート面の合成樹脂フイルムのいずれよりも軟化温度が低
    い内側のシート面の同種の合成樹脂フイルム同志を溶着
    することを特徴とする樹脂シートの熱溶着法。 ２ 両シートの厚さがそれぞれ１５０μを越えることを
    特徴とする特許請求の範囲第１項記載の樹脂シートの熱
    溶着法。
JP53065359A 1978-05-30 1978-05-30 樹脂シ−トの熱溶着法 Expired JPS601179B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53065359A JPS601179B2 (ja) 1978-05-30 1978-05-30 樹脂シ−トの熱溶着法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53065359A JPS601179B2 (ja) 1978-05-30 1978-05-30 樹脂シ−トの熱溶着法

Publications (2)

Publication Number Publication Date
JPS54156078A JPS54156078A (en) 1979-12-08
JPS601179B2 true JPS601179B2 (ja) 1985-01-12

Family

ID=13284678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53065359A Expired JPS601179B2 (ja) 1978-05-30 1978-05-30 樹脂シ−トの熱溶着法

Country Status (1)

Country Link
JP (1) JPS601179B2 (ja)

Also Published As

Publication number Publication date
JPS54156078A (en) 1979-12-08

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