JPS63302027A - 網状シ−ト - Google Patents

網状シ−ト

Info

Publication number
JPS63302027A
JPS63302027A JP62139120A JP13912087A JPS63302027A JP S63302027 A JPS63302027 A JP S63302027A JP 62139120 A JP62139120 A JP 62139120A JP 13912087 A JP13912087 A JP 13912087A JP S63302027 A JPS63302027 A JP S63302027A
Authority
JP
Japan
Prior art keywords
tape
polyolefin resin
melting point
net
sheet
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.)
Granted
Application number
JP62139120A
Other languages
English (en)
Other versions
JPH0511753B2 (ja
Inventor
Keiji Sekiguchi
啓司 関口
Takashi Fukushima
孝 福島
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.)
Diatex Co Ltd
Original Assignee
Diatex Co Ltd
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 Diatex Co Ltd filed Critical Diatex Co Ltd
Priority to JP62139120A priority Critical patent/JPS63302027A/ja
Priority to KR1019880006562A priority patent/KR890000709A/ko
Priority to US07/203,718 priority patent/US4980227A/en
Priority to AU16976/88A priority patent/AU608610B2/en
Priority to JP63182843A priority patent/JPH07106605B2/ja
Publication of JPS63302027A publication Critical patent/JPS63302027A/ja
Publication of JPH0511753B2 publication Critical patent/JPH0511753B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
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    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/587—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads adhesive; fusible
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2503/00—Use of resin-bonded materials as filler
    • B29K2503/04—Inorganic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/046—LDPE, i.e. low density polyethylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2927—Rod, strand, filament or fiber including structurally defined particulate matter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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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】 〔産業上の分野し 本発明は、遮光用量ント、土木用／−ト、果物用コンテ
ナー用シート、穀物乾燥用シート、各種補強剤などの幅
広い用途を有する網状シートに関するものである。
〔従来の技術〕
熱可塑性合成ｌｔ−１１ｉの延伸テープの両側に該延伸
テープよりも低融点の熱可塑性合成樹脂層を設けた多層
テープで織物を製造することはすでに知られている。例
えば、実公昭５３−４９９０２号明ＦＪ’ｆ書には、こ
のようなテープを用いて、織布を織り、外側の熱可塑性
合成樹脂を融点以上の温度で加熱して縦（黄のテープを
熱圧着して織物シートを製造することが開示されている
。
ここで用いる経糸及び緯糸は、多層テープの内部に延伸
テープが１枚設けられたものであるから、該経糸と緯糸
を用いて製造した織物シートは、腰が弱く遮光用量ント
、土木用シート及び各種補強剤などとして用いる場合に
強度不足となるという問題が生じている。また、織物を
織る際や織った織物を保管しておく場合にシートの腰が
弱くシートが歪んだりして、生産製が低下するといった
問題があった。
上記問題を解決するためには、経糸や緯糸を構成する延
伸テープや低融点の熱可塑性合成樹脂層の厚みを厚くす
ることが考えられるが、この方法では所望の強度が得ら
れない。特に、厚い延伸テープを製造すると、得られる
延伸テープの厚みが不均一になるという問題が生じてし
まう。
こ発明が解決しようとする問題点〕 従って、本発明は、腰が強くシート形状の保持製が極め
て優れた網状シートを提供することを目的とする。
〔問題点を解決する手段〕
本発明は、網状シートを構成する経糸又は緯糸としてポ
リオレフィン樹脂製の２枚の延伸テープの間及び外側に
該ポリオレフィン樹脂よりも低融点のポリオレフィン樹
脂層を設けた構造の多層テープを用いると上記問題点を
有効に解決できるとの知見に基づいてなされたのである
。
すなわち、本発明は、ポリオレフィン樹脂製の２枚の延
伸テープの間及び外側に該ポリオレフィン樹脂よりも低
融点のポリオレフィン樹脂層を設けた構造の多層テープ
を経糸又は緯糸とし、残りを前記多層テープ又はポリオ
レフィン樹脂製の１枚の延伸テープの両側に該ポリオレ
フィン）針脂よりも低融点のポリオレフィン樹脂層を設
けた構造のテープとする網状織物シートの経糸と緯糸の
交点が熱融着されていることを特徴とする網状シートを
提供する。
本発明において、経糸及び緯糸として用いる５層構造の
多層テープ及び３層構造の多層テープの芯材を形成する
延伸テープ及び該延伸テープよりも低融点のポリオレフ
ィン樹脂層は、いずれもポリオレフィン樹脂、例えば、
高密度ポリエチレン、低密度ポリエチレン、中密度ポリ
エチレン、ポリプロピレンなどによって形成される。こ
こで、低融点のポリオレフィン樹脂層は、芯材の延伸テ
ープを形成するポリオレフィン樹脂よりも、融点が１５
〜３５℃、好ましくは、２０〜３０℃低い樹脂で形成す
るのがよい。本発明においては、経糸と緯糸の両方とも
が、ポリオレフィン樹ｍｌの２枚の延伸テープの間及び
外側に該ポリオレフィン）封脂よりも低融点のポリオレ
フィン樹脂層を設けた構造の５層テープであるのが好ま
しい。又芯材を高密度ポリエチレン、ポリプロピレンと
し、低融点のｌｔ指層を低密度ポリエチレンとするのが
好ましい。
本発明においては、上記５層テープの２枚の延伸テープ
が異なった材質であってもよいが、製造上同じｔ材質と
するのがよい。
尚、本発明において、芯材の延伸テープ及びその外ｆｆ
］！Ｉに形成する低融点のポリオレフィン樹脂層の厚み
は任意とすることができるが、延伸テープ及び低融点の
ポリオレフィン樹脂層の厚みをそれぞれ１５〜５５μｍ
Ｘ１〜５μｍ、好ましくは、２０〜４５μｍ、２〜４μ
ｍとするのがよい。又複層テープの幅は任意とすること
ができるが、１〜４μｍとするのが望ましい。
本発明で使用する３層構造の多層テープでは両側に前記
低融点のポリオレフィン樹脂層を接着させることによっ
て形成させることができるが、２台の押し出し機を用い
た複合ダイス中で延伸テープとなるポリオレフィン樹脂
の両側に低融点のポリオレフィン樹脂を融着させ、複合
ダイスから押し出して積層テープとした後、これを延伸
して製造するのが好ましい。又、本発明で使用する５層
構造の多層テープは、芯材の２枚の延伸テープの間と外
側に低融点のポリオレフィン樹脂層を接着させることに
よって形成させることができるが、上記３層構造の多層
テープを複合ダイスから押し出して積層テープとした後
、所定の幅にカットしこれを２枚重ね低融点のポリオレ
フィン樹脂層を加熱接着させ、次いでこれを延伸して製
造するのが好ましい。この際、押し出しをインフレーシ
ョンで行ってカットすると簡易に２枚重ねのものが得ら
れるので好ましい。
ここで、芯材の延伸倍率を４〜１２倍、好ましくは５〜
８倍とするのがよい。尚、本発明において、芯材の延伸
テープ及びその外側に形成する低融点のポリオレフィン
（封脂層の厚みは任意とすることができるが、延伸テー
プ及び低融点のポリオレフインド（脂層の堕みをそれぞ
れ１５〜５５μｍ１１〜５μｍ％好ましくは、２０〜４
５μｍ１２〜・１μｍとするのがよい。又５層テープ及
び３層テープの厚みをそれぞれ３５〜１３０μｍ１１７
〜６５μｍ、好ましくは、６０〜９０μｍ、３０〜４５
μｍとするのがよい。なお、多層テープの幅は［壬意と
することができるが１〜４　ｍｍとするのがよい。
本発明の織物シートは、上記の多層テープを経糸及び緯
糸とし織機で織った後、経糸と緯糸の交差点を熱融着し
て製造される。ここで、熱融着は低融点の熱可塑性合成
（☆（脂が溶融するが延伸テープが溶融しない温度で行
う。
本発明の織物シートは、上記の方法により、経糸と緯糸
との間にスペース、例えばＯ，ＯＯ２〜〜１．２　ｃｉ
、好ましくは０．０２〜０．８Ｃイの正方形、直方形な
どのスペースを設けるのがよい。
本発明の織物シートには、織物シートの外側を形成する
低融点の熱可塑性合成樹脂層に無機充填剤を含有させる
ことができる。該無機充填剤としては、酸化珪素、炭酸
カルシウム、タルク、カオリンなどがあげられる。これ
らのうち、酸化珪素、炭酸カルシウムが好ましく、特に
好ましくは酸化珪素であり、低融点のポリオレフィン樹
脂層中に０．１〜１重量％（以下、％と略称する。）、
好ましくは０．４〜０．６％含有させるのがよい。又、
平均粒径が１〜８μｍ好ましくは２〜５μｍの無機充填
剤を用いるのがよい。
〔発明の効果〕
本発明によれば、腰が強くシート形状の保持性が極めて
優れた網状シートを提供することができる。又、本発明
の網状シートは、経糸と緯糸との交差点が接着されてい
るので、使用に際して目庇れしないという特性をも有し
ている。
次に実施例により本発明を説明する。
〔実施例〕
実施例１ 第１図に本発明の網状シートの概略図を又第１図のＡ　
−Ａ断面図を示す。ここで、網状シートｌ：ま、５層構
造の経糸２及び緯糸３から織られており、交点４て熱融
着され経糸と緯糸との間にスペース５が形成されている
。経糸２及び緯糸３は、同一材料で形成されており、該
糸を構成する多層テープ６の断面図を第３図に示すが、
２枚の延伸テープ７．７の間及び外側に延伸テープを構
成するポリオレフィン樹脂よりも低融点のポリオレフィ
ン樹脂層８．８．８が形成されている。
ここで延伸テープ７は、高密度ポリエチレン（融点１３
４、密度０．９６０）を７倍に延伸した厚み３５μｍ：
幅２ｍｍであり、低融点の熱可塑性合成樹脂層８は、低
密度ポリエチレン（融点　１３４℃：密度０．９２０の
厚み２　ｔ−ｔ　ｍ　：幅２　ｍｍのテープである。
上記の多層テープは、次のようにして製造した。
先づ、直径２００　ｍｍのダイスに、高密度ポリエチレ
フ用の押出機と、低密度ポリエチレン用の押出機とを連
結した。低密度ポリエチレンはダイス中で２つに分岐さ
れ、高密度ポリエチレンの両側に配置されて、ダイスか
ら出てくる。これを冷却して３層テープとした後、連続
工程でス’Ｊ　ソ）して２枚重ね、次いて低融点の熱可
塑性合成樹脂層を加熱接着させ、これを延伸して製造し
た。
上記の多層テープを経糸及び緯糸とし織成て織った後、
経糸と緯糸の交差点を１０７℃に加熱して熱融着た。
実施例２ 経糸として高密度ポリエチレン（融点１０９℃、密度０
．９６０）延伸倍率７、厚み３５μｍ、幅２ｍｍの延伸
テープを芯材として用い、その両側に酸化珪素を０．５
重量％添加した低密度ポリエチレン（融点１０９℃、密
度０．９２０）延伸倍率７、厚み３５μｍ、幅２　ｍｍ
のテープを融着した３層構造の多層テープとしたほかは
、実施例１と同様にして網状シートを製造した。
【図面の簡単な説明】
第１図は本発明の網状シートの概略図、第２図：ま第１
図のＡ　−Ａ断面を示す図、第３図は網状シートを構成
する多層テープの断面図である。 図中　２・・・・経糸、３・・・・緯糸、７・・・・延
伸テープ、８・・・・低融点ポリオレフィン樹脂層であ
る。 冊 第１図 第２図 第６図

Claims (2)

    【特許請求の範囲】
  1. （１）ポリオレフィン樹脂製の２枚の延伸テープの間及
    び外側に該ポリオレフィン樹脂よりも低融点のポリオレ
    フィン樹脂層を設けた構造の多層テープを経糸又は緯糸
    とし、残りを前記多層テープ又はポリオレフィン樹脂製
    の１枚の延伸テープの両側に該ポリオレフィン樹脂より
    も低融点のポリオレフィン樹脂層を設けた構造のテープ
    とする網状織物シートの経糸と緯糸の交点が熱融着され
    ていることを特徴とする網状シート。
  2. （２）経糸と緯糸の両方ともが、ポリオレフィン樹脂製
    の２枚の延伸テープの間及び外側に該ポリオレフィン樹
    脂よりも低融点のポリオレフィン樹脂層を設けた構造の
    多層テープである特許請求の範囲第（１）項記載の網状
    シート。
JP62139120A 1987-06-03 1987-06-03 網状シ−ト Granted JPS63302027A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62139120A JPS63302027A (ja) 1987-06-03 1987-06-03 網状シ−ト
KR1019880006562A KR890000709A (ko) 1987-06-03 1988-06-01 그물상 시이트 및 그의 제조용 복합층사 제조방법
US07/203,718 US4980227A (en) 1987-06-03 1988-06-02 Netlike sheet and method for producing multilayer yarn for producing the same
AU16976/88A AU608610B2 (en) 1987-06-03 1988-06-02 Netlike sheet and method for producing multilayer yarn for producing the same
JP63182843A JPH07106605B2 (ja) 1987-06-03 1988-07-22 ５層テープの製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62139120A JPS63302027A (ja) 1987-06-03 1987-06-03 網状シ−ト

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP63182843A Division JPH07106605B2 (ja) 1987-06-03 1988-07-22 ５層テープの製造方法

Publications (2)

Publication Number Publication Date
JPS63302027A true JPS63302027A (ja) 1988-12-08
JPH0511753B2 JPH0511753B2 (ja) 1993-02-16

Family

ID=15237967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62139120A Granted JPS63302027A (ja) 1987-06-03 1987-06-03 網状シ−ト

Country Status (4)

Country Link
US (1) US4980227A (ja)
JP (1) JPS63302027A (ja)
KR (1) KR890000709A (ja)
AU (1) AU608610B2 (ja)

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Also Published As

Publication number Publication date
US4980227A (en) 1990-12-25
JPH0511753B2 (ja) 1993-02-16
KR890000709A (ko) 1989-03-16
AU1697688A (en) 1988-12-08
AU608610B2 (en) 1991-04-11

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