JP6302057B2 - 自動車内装用クッション部材 - Google Patents
自動車内装用クッション部材 Download PDFInfo
- Publication number
- JP6302057B2 JP6302057B2 JP2016525264A JP2016525264A JP6302057B2 JP 6302057 B2 JP6302057 B2 JP 6302057B2 JP 2016525264 A JP2016525264 A JP 2016525264A JP 2016525264 A JP2016525264 A JP 2016525264A JP 6302057 B2 JP6302057 B2 JP 6302057B2
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- pct
- fiber
- cushion member
- poly
- terephthalate
- 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.)
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- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 10
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/12—Vehicles
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
- Seats For Vehicles (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Multicomponent Fibers (AREA)
Description
ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)素材の繊維(融点290℃)80重量%及び低融点ポリブチレンテレフタレート(PBT)繊維(融点225℃)20重量%を混繊し、ニードルパンチ方式により不織布プレフォームを得、前記混繊されたウェブを上下温度が200℃に保たれ、ベルト速度が1.0m/minのダブルベルトプレスにおいて熱接着させて繊維状基材を確保した。
ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)素材の繊維(融点290℃)80重量%に、低融点ポリブチレンテレフタレート(PBT)繊維(融点225℃)10重量%及びコーポリ(1,4−シクロヘキサンジメチレンテレフタレート(co−PCT)繊維(融点220℃)10重量%を混繊した以外は、前記実施例1の方法と同様にしてクッション部材を製造した。
ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)樹脂及びポリプロピレン(PP)樹脂を個別の紡糸ノズルに流入させて紡糸速度600m/minの紡糸条件下で溶融紡糸した後、3.5倍延伸し、120℃において熱処理してポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)/ポリプロピレン(PP)の芯鞘型複合繊維を製造した。このとき、ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)樹脂及びポリプロピレン(PP)樹脂間の混合比は、70:30の重量比であった。
ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)樹脂及びポリプロピレン(PP)樹脂をサイドバイサイド型紡糸ノズル付き押出器に入れて溶融紡糸した以外は、前記実施例3の紡糸条件と同様にしてサイドバイサイド型の複合繊維を製造し、前記実施例3の方法と同様にして繊維状基材を形成した。
ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)素材の繊維(融点290℃)を含有する実施例1の繊維状基材の片面に、ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)/ポリブチレンテレフタレート(PBT)のスペーサー生地を積層し、その上部にポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)素材の繊維(融点290℃)を含有する前記繊維状基材をさらに積層し、熱プレスを用いて層間接着させてクッション部材を製造した。
前記実施例5の多層構造において、積層された繊維状基材を300回/mim/cm2のニードルパンチした後、200℃の熱風接着方式を用いて製造した以外は、実施例5の方法と同様にしてクッション部材を製造した。
ポリエチレンテレフタレート(ポリエチレンテレフタレート(PET))繊維(ウンジンケミカル社製、単糸繊度7デニール)に、低融点ポリエチレンテレフタレート(PET)(単糸繊度6デニール)を8:2の重量比で混繊して繊維ウェブを形成した以外は、前記実施例1の方法と同様にしてクッション部材を製造した。
実施例1〜実施例4において製造されたクッション部材の重量及び厚さを測定し、その結果を下記表1に示す。
前記実施例1〜実施例6において製造されたクッション部材に対して、硬度、圧縮永久収縮率、空気透過度、圧縮回復率などを測定してクッション材に活用可能であるか否かを判定した。
13、13’…スペーサー生地
100…ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)素材の繊維
200…バインダー繊維
1’…クッション部材
Claims (7)
- 繊維状基材が少なくとも2層以上積層された繊維ウェブと、
前記繊維ウェブの層間に挿入されて層間接着されたスペーサー生地と、を備え、
前記繊維状基材は、ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)素材の繊維に、ポリブチレンテレフタレート(PBT)、コーポリ(1,4−シクロヘキサンジメチレンテレフタレート)(co−PCT)及びポリプロピレン(PP)よりなる群から選ばれるいずれか一種の素材のバインダー繊維が混合されたものであり、
前記スペーサー生地は、PCT素材の繊維の主成分と、PBT、co−PCT及びPPよりなる群から選ばれるいずれか1つの副成分と、からなることを特徴とする自動車内装用クッション部材。 - 繊維状基材が少なくとも2層以上積層された繊維ウェブと、
前記繊維ウェブの層間に挿入されて層間接着されたスペーサー生地と、を備え、
前記繊維状基材は、ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)素材の繊維の第1の成分、及びポリブチレンテレフタレート(PBT)、コーポリ(1,4−シクロヘキサンジメチレンテレフタレート)(co−PCT)及びポリプロピレン(PP)よりなる群から選ばれるいずれか一種の素材のバインダー繊維の第2の成分が紡糸された複合繊維により構成されており、
前記スペーサー生地は、PCT素材の繊維の主成分と、PBT、co−PCT及びPPよりなる群から選ばれるいずれか1つの副成分と、からなることを特徴とする自動車内装用クッション部材。 - 前記複合繊維が、芯部に第1の成分が紡糸され、且つ、鞘部に第2の成分が紡糸された芯鞘型またはスキンコア型であることを特徴とする請求項2に記載の前記自動車内装用クッション部材。
- 前記複合繊維が、第1の成分及び第2の成分がそれぞれのサイドに配列されたサイドバイサイド型であることを特徴とする請求項2に記載の前記自動車内装用クッション部材。
- 前記バインダー繊維が、5〜95重量%含有されることを特徴とする請求項1または請求項2に記載の前記自動車内装用クッション部材。
- 前記バインダー繊維が、ポリ(1,4−シクロヘキサンジメチレンテレフタレート)(PCT)素材の繊維に比べて、溶融温度が20℃以上低い低融点繊維であることを特徴とする請求項1または請求項2に記載の前記自動車内装用クッション部材。
- 前記スペーサー生地が、熱接着方式とニードルパンチ方式のいずれかまたはこれらの組み合わせによって層間接着されることを特徴とする請求項1に記載の前記自動車内装用クッション部材。
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