JP2018095993A - 自動車装備材用半製品の製造方法 - Google Patents
自動車装備材用半製品の製造方法 Download PDFInfo
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- JP2018095993A JP2018095993A JP2016241154A JP2016241154A JP2018095993A JP 2018095993 A JP2018095993 A JP 2018095993A JP 2016241154 A JP2016241154 A JP 2016241154A JP 2016241154 A JP2016241154 A JP 2016241154A JP 2018095993 A JP2018095993 A JP 2018095993A
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- 239000011265 semifinished product Substances 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 92
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 72
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 50
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229920001577 copolymer Polymers 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000001361 adipic acid Substances 0.000 claims abstract description 16
- 235000011037 adipic acid Nutrition 0.000 claims abstract description 16
- 238000002844 melting Methods 0.000 claims abstract description 15
- 230000008018 melting Effects 0.000 claims abstract description 15
- 238000004080 punching Methods 0.000 claims abstract description 10
- 239000000306 component Substances 0.000 claims description 55
- 239000002131 composite material Substances 0.000 claims description 52
- 239000008358 core component Substances 0.000 claims description 32
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 30
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 27
- 229920001897 terpolymer Polymers 0.000 claims description 4
- 239000000470 constituent Substances 0.000 abstract description 10
- 238000000465 moulding Methods 0.000 abstract description 5
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 238000009987 spinning Methods 0.000 description 14
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 9
- 238000000748 compression moulding Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 150000002009 diols Chemical class 0.000 description 6
- 238000002074 melt spinning Methods 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
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Abstract
【課題】 比較的広い範囲の加熱温度で成型でき、しかも高い剛性を持つ最終製品を得ることができる自動車装備材用半製品の製造方法を提供する。
【解決手段】 この自動車装備材用半製品の製造方法は、芯鞘型複合繊維が集積されている繊維ウェブに、ニードルパンチを施し、芯鞘型複合繊維相互間を三次元的に交絡させるというものである。芯鞘型複合繊維の芯成分はエチレングリコールとテレフタル酸の共重合体よりなる。芯鞘型複合繊維の鞘成分はエチレングリコールとアジピン酸とテレフタル酸を含む共重合体よりなる。芯鞘型複合繊維中の芯成分と鞘成分の重量比は、芯成分:鞘成分=1〜3:1である。芯成分と鞘成分は、同心に配置されている。繊維ウェブは、芯鞘型複合繊維相互間が鞘成分の軟化又は溶融によって接着されている。
【選択図】 なし
Description
芯成分として、エチレングリコールとテレフタル酸の共重合体(融点250℃)を準備した。鞘成分として、エチレングリコール、ジエチレングリコール、アジピン酸、テレフタル酸及びイソフタル酸の共重合体(融点200℃)を準備した。なお、ジオール成分としてのエチレングリコールは98.8モル%でジエチレングリコールは1.2モル%であり、ジカルボン酸成分としてのアジピン酸は18.8モル%でテレフタル酸は78.0モル%でイソフタル酸は3.2モル%である。上記した芯成分と鞘成分の両者を、複合紡糸孔を持つ紡糸装置に供給して、溶融紡糸を行い、芯鞘型複合長繊維を得た。芯成分と鞘成分の重量割合は、芯成分:鞘成分=7:3であった。芯鞘型複合長繊維を得た後、これを紡糸装置の下方に設けたエアーサッカーに導入し、高速で牽引細化した後、公知の開繊装置で開繊させ、移動するスクリーンコンベア上に捕集及び集積させて繊維ウェブを得た。この繊維ウェブを、一対の加熱ロール間に導入し、芯成分を軟化させて芯鞘型複合長繊維相互間を接着させた後、ニードルパンチ装置に搬送し、パンチ密度90本/cm2でニードルパンチを施して、重量525g/m2の自動車装備材用半製品を得た。
芯成分として、実施例1で用いた共重合体を準備した。鞘成分として、エチレングリコールとテレフタル酸とイソフタル酸の三元共重合体(融点230℃)を準備した。この両者を、複合紡糸孔を持つ紡糸装置に供給して、溶融紡糸を行い、芯鞘型複合長繊維を得た。芯成分と鞘成分の重量割合は、芯成分:鞘成分=6:4であった。芯鞘型複合長繊維を得た後、これを紡糸装置の下方に設けたエアーサッカーに導入し、高速で牽引細化した後、公知の開繊装置で開繊させ、移動するスクリーンコンベア上に捕集及び集積させて繊維ウェブを得た。この繊維ウェブを、一対の加熱ロール間に導入し、芯成分を軟化させて芯鞘型複合長繊維相互間を接着させた後、ニードルパンチ装置に搬送し、パンチ密度90本/cm2でニードルパンチを施して、重量500g/m2の自動車装備材用半製品を得た。
芯鞘型複合短繊維(ユニチカ株式会社製、品番「2080」、繊度が4.4デシテックスで、繊維長:51mmで、芯成分:鞘成分=1:1であり、鞘成分の融点が200℃である芯鞘型複合短繊維)を準備した。なお、この芯鞘型複合短繊維の芯成分は、実施例1で用いた共重合体と同一のものであり、鞘成分は、エチレングリコールとテレフタル酸とイソフタル酸の三元共重合体であるが、イソフタル酸の混合割合の多いものであり、融点が低いものである。この芯鞘型複合短繊維をカード機にて開繊及び集積して、繊維ウェブを得た後、直ちにニードルパンチ装置に搬送し、パンチ密度90本/cm2でニードルパンチを施して、重量500g/m2の自動車装備材用半製品を得た。
芯成分として、エチレングリコールとテレフタル酸の共重合体(融点250℃)を準備した。鞘成分として、エチレングリコール、ジエチレングリコール、アジピン酸、テレフタル酸及びイソフタル酸の共重合体(融点200℃)を準備した。なお、ジオール成分としてのエチレングリコールは98.8モル%でジエチレングリコールは1.2モル%であり、ジカルボン酸成分としてのアジピン酸は18.8モル%でテレフタル酸は78.0モル%でイソフタル酸は3.2モル%である。上記した芯成分と鞘成分の両者を、複合紡糸孔を持つ紡糸装置に供給して、溶融紡糸を行い、芯鞘型複合長繊維を得た。芯成分と鞘成分の重量割合は、芯成分:鞘成分=7:3であった。芯鞘型複合長繊維を得た後、これを紡糸装置の下方に設けたエアーサッカーに導入し、高速で牽引細化した後、公知の開繊装置で開繊させ、移動するスクリーンコンベア上に捕集及び集積させて繊維ウェブを得た。この繊維ウェブを、一対の加熱ロール間に導入し、鞘成分を軟化させて芯鞘型複合長繊維相互間を接着させた後、ニードルパンチ装置に搬送し、パンチ密度90本/cm2でニードルパンチを施して、重量525g/m2の自動車装備材用半製品を得た。
芯成分として、実施例1で用いた共重合体を準備した。鞘成分として、エチレングリコールとテレフタル酸とイソフタル酸の三元共重合体(融点230℃)を準備した。この両者を、複合紡糸孔を持つ紡糸装置に供給して、溶融紡糸を行い、芯鞘型複合長繊維を得た。芯成分と鞘成分の重量割合は、芯成分:鞘成分=6:4であった。芯鞘型複合長繊維を得た後、これを紡糸装置の下方に設けたエアーサッカーに導入し、高速で牽引細化した後、公知の開繊装置で開繊させ、移動するスクリーンコンベア上に捕集及び集積させて繊維ウェブを得た。この繊維ウェブを、一対の加熱ロール間に導入し、鞘成分を軟化させて芯鞘型複合長繊維相互間を接着させた後、ニードルパンチ装置に搬送し、パンチ密度90本/cm2でニードルパンチを施して、重量500g/m2の自動車装備材用半製品を得た。
Claims (9)
- 芯成分がエチレングリコールとテレフタル酸からなる共重合体よりなり、鞘成分がエチレングリコールとアジピン酸とテレフタル酸を含む共重合体よりなる芯鞘型複合繊維が集積されてなる繊維ウェブに、ニードルパンチを施すことにより、該芯鞘型複合繊維相互間を三次元的に交絡させることを特徴とする自動車装備材用半製品の製造方法。
- 鞘成分が、エチレングリコール、アジピン酸、テレフタル酸、イソフタル酸及びジエチレングリコールからなる共重合体である請求項1記載の自動車装備材用半製品の製造方法。
- 芯成分と鞘成分の重量比が、芯成分:鞘成分=1〜3:1である請求項1記載の自動車装備材用半製品の製造方法。
- 芯鞘型複合繊維中において、芯成分と鞘成分とが同心に配置されている請求項1記載の自動車装備材用半製品の製造方法。
- 芯鞘型複合繊維が、芯鞘型複合長繊維又は芯鞘型複合短繊維である請求項1記載の自動車装備材用半製品の製造方法。
- 繊維ウェブ中の芯鞘型複合繊維相互間が、鞘成分の軟化又は溶融によって、接着されている請求項1記載の自動車装備材用半製品の製造方法。
- 自動車装備材が自動車の下面を覆うアンダーカバーである請求項1記載の自動車装備材用半製品の製造方法。
- 芯成分がエチレングリコールとテレフタル酸の共重合体よりなり、鞘成分がエチレングリコールとアジピン酸とイソフタル酸を含む三元共重合体よりなる芯鞘型複合繊維が集積されてなる繊維ウェブを得る工程、
前記繊維ウェブに、ニードルパンチを施すことにより、前記芯鞘型複合繊維相互間を三次元的に交絡させて自動車装備材用半製品を得る工程、
及び前記自動車装備材用半製品に加熱及び圧縮を施す工程を具備することを特徴とする自動車装備材の製造方法。 - 鞘成分が、エチレングリコール、アジピン酸、テレフタル酸、イソフタル酸及びジエチレングリコールからなる共重合体である請求項8記載の自動車装備材の製造方法。
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CN201780076527.4A CN110062827A (zh) | 2016-12-13 | 2017-12-12 | 汽车装备用半成品的制造方法 |
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JP6671690B2 (ja) * | 2017-04-19 | 2020-03-25 | ユニチカ株式会社 | 繊維ボードの製造方法 |
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