CN113338036A - 复合纱线 - Google Patents

复合纱线 Download PDF

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CN113338036A
CN113338036A CN202110204587.8A CN202110204587A CN113338036A CN 113338036 A CN113338036 A CN 113338036A CN 202110204587 A CN202110204587 A CN 202110204587A CN 113338036 A CN113338036 A CN 113338036A
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composite yarn
polyvinyl butyral
phthalate
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林俊伟
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Abstract

本发明涉及一种复合纱线，其包含一芯部及一鞘部。该芯部是由一热塑性材料所构成，该热塑性材料选自聚酯、聚酰胺、聚丙烯腈或它们的组合；该鞘部包覆该芯部且由一包覆材料所构成，该包覆材料包含聚乙烯醇缩丁醛，该聚乙烯醇缩丁醛根据ASTM D1238标准方法在190℃、2.16kg下测量，具有2克/10分钟至35克/10分钟的熔体流动速率。

Description

复合纱线
技术领域
本发明涉及一种复合纱线，尤指一种芯鞘型复合纱线。
背景技术
以往使用纱线进行织造后，必须对整个织物进行上浆、或在多条纱线的交界处使用热塑性材料进行粘结，之后才可将织物定型，但上述作业会导致整个织造上浆定型制程较为繁复，也容易影响织物的性质，例如可能使织物变得僵硬，影响织物触感或影响织物的型态。再者，一般业界所使用的热塑性材料为聚氯乙烯(polyvinyl chloride，PVC)，具有毒性且无法符合环保的需求。由此可见，纱线或其织造后的上浆、定型制程仍有待被持续研发改进。
相较于无法满足环保要求的聚氯乙烯，聚乙烯醇缩丁醛(polyvinyl butyral，PVB)对环境更为友善，还可由废弃胶合安全玻璃进行回收而获得，非常符合环保与循环经济商业模式的要求。因此，如能将其运用至纱线制作或纱线织造后的上浆定型制程，应有助于解决现有织造制程的缺点。
发明内容
因此，本发明的目的为提供一种有利于定型及增加强度、并符合环保要求的复合纱线。
本发明的复合纱线，包含：一芯部及一鞘部。所述芯部是由一热塑性材料所构成，所述热塑性材料选自下列所组成的群组：聚酯(polyester)、聚酰胺(polyamide)、聚丙烯腈(polyacrylonitrile)和其组合；该鞘部包覆该芯部且由一包覆材料所构成，其中，所述包覆材料包含聚乙烯醇缩丁醛，所述聚乙烯醇缩丁醛根据ASTM D1238标准方法在190℃、2.16kg下测量，具有2克(g)/10分钟(min)至35g/10min的熔体流动速率(melt flow rate,MFR)。
本发明的功效在于：该复合纱线的鞘部完全包覆该芯部，且该鞘部是由包含聚乙烯醇缩丁醛的包覆材料所构成，在后续使用该复合纱线制备织物时能直接透过热熔方式来让织物定型，不需额外进行以胶水或胶膜定型织物的程序，有助于简化织造制程，加上所使用的包覆材料是以聚乙烯醇缩丁醛取代聚氯乙烯，能满足友善环境的要求。此外，由于本发明的聚乙烯醇缩丁醛具有特定的熔体流动速率范围，故可于热熔程序时具有适当的流动性，即便所述包覆材料没有添加增塑剂，仍可使所制得的织物的表面平整、织物触感佳。
优选地，该包覆材料还包含一高分子材料。具体而言，所述高分子材料可包含酚醛树脂(phenol-formaldehyde resin)、环氧树脂(epoxy resin)、热塑性聚氨酯(thermoplastic polyurethane，TPU)、聚甲基丙烯酸甲酯(poly(methyl methacrylate))、乙烯-醋酸乙烯酯共聚物(ethylene-vinyl acetate copolymer，EVA)、甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物(methyl methacrylate-butadiene-styrene copolymer，MBS)、苯乙烯-丁二烯嵌段共聚物(styrene-butadiene block copolymer，SBC)或其任一组合。
更优选地，所述高分子材料为热塑性聚氨酯。当包覆材料包含热塑性聚氨酯时，可更进一步调整所述包覆材料的弹性。在一实施方案中，以所述聚乙烯醇缩丁醛为100重量份，热塑性聚氨酯的含量为大于0重量份至100重量份。
优选地，该包覆材料还包含一增塑剂。具体而言，所述增塑剂可包含乙酰柠檬酸三丁酯(acetyl tributyl citrate，ATBC)、乙酰柠檬酸三辛酯(acetyl trioctyl citrate，ATOC)、如邻苯二甲酸丁芐酯(butyl benzyl phthalate)等的烷基芐基邻苯二甲酸酯(alkyl benzyl phthalate)、烷基邻苯二甲酸酯(alkyl phthalate)、亚麻籽油(blownlinseed oil)、蓖麻醇酸丁酯(butyl ricinoleate)、蓖麻油(castor oil)、如二己基己二酸酯(dihexyl adipate)、二辛基己二酸酯(dioctyl adipate，DOA)等的二烷基己二酸酯(dialkyl adipate)、如邻苯二甲酸二丁酯(dibutyl phthalate，DBP)、邻苯二甲酸二辛酯(dioctyl phthalate，DOP)等的二烷基邻苯二甲酸酯(dialkyl phthalate)、二异壬基环己烷-二羧酸酯(di-isononyl-cyclohexane-dicarboxylate，DINCH)、乙二醇二丁酸酯(ethylene glycol di-N-butyrate)、磷酸异癸基二苯酯(isodecyl diphenylphosphate)、N-乙基甲苯磺酰胺(N-ethyl toluenesulfonamide)，聚乙二醇(polyethyleneglycol)、磷酸叔丁基苯二苯酯(tert-butylphenyl diphenyl phosphate)，甲苯磺酰胺(toluenesulfonamide)、三芳基磷酸酯掺合物(triaryl phosphate ester blend)、柠檬酸三丁酯(tributyl citrate，TBC)、磷酸三甲苯酯(tricresyl phosphate，TCP)、柠檬酸三乙酯(triethyl citrate，TEC)、三乙二醇(triethylene glycol)、三乙二醇-二-2-乙基己酸酯(triethylene glycol bis(2-ethylhexanoate))、三苯基磷酸酯(triphenylphosphate，TPP)、2-乙基己基二苯基磷酸酯(2-ethylhexyl diphenyl phosphate)或它们的任一组合。
在一实施方案中，以所述聚乙烯醇缩丁醛为100重量份，增塑剂的含量为20重量份至100重量份。
优选地，该聚乙烯醇缩丁醛是由废弃胶合安全玻璃回收所制得。具体而言，由废弃胶合安全玻璃回收聚乙烯醇缩丁醛的工艺包含分离工序和纯化工序。其中，所述分离工序依次为：裁剪废弃胶合安全玻璃沾附杂质的边沿、将前述裁剪后的废弃胶合安全玻璃碾碎、使原有的聚乙烯醇缩丁醛层吸水、接着进行撞击以使大部分玻璃脱落。所述纯化工序依次为：使前述聚乙烯醇缩丁醛层破碎成碎片、进一步分离聚乙烯醇缩丁醛碎片残留的玻璃、接着加入硅酸镁于45℃下进行干燥工序，最后得到回收的聚乙烯醇缩丁醛。
优选地，所述聚乙烯醇缩丁醛的熔体流动速率为7g/10min至15g/10min。
优选地，所述鞘部的厚度为0.08毫米(mm)至5.0mm。更优选地，所述鞘部的厚度为0.08mm至0.9mm。所述鞘部的厚度是由所述复合纱线的半径扣除所述芯部的半径的差值所定义的距离。
在本发明中，所述芯部可为“将两根或两根以上短纤维或长纤维排列成近似平行状态，并沿轴向旋转加捻成具有一定强力和密度的单纱”，或是“由两根或两根以上的单纱捻合而成的股线”。前述单纱或股线是由所述热塑性材料所构成。
在本发明中，所述复合纱线可通过针织、圆织、平织或梭织的方式织成一织物，但不限于此。
在本发明中，前述复合纱线制成的织物，可应用至各类用途，例如窗帘、地毯、遮阳棚、海滩伞、餐桌垫、手机袋等，但不限于此。
附图说明
图1为本发明的一个优选实施例的复合纱线的结构示意图。
具体实施方式
以下配合参考图1并结合本发明的优选实施例，进一步阐述本发明为达成预定发明目的所采取的技术手段。
参阅图1，本发明实施例1的复合纱线1包含一芯部10及一鞘部20。
该芯部10是由多根聚酰胺长纤维捻成的单纱所构成。
该鞘部20包覆该芯部10，且该鞘部20是由一包覆材料所构成，该包覆材料包含聚乙烯醇缩丁醛和增塑剂。以所述聚乙烯醇缩丁醛为100重量份，增塑剂的含量为20重量份。
该聚乙烯醇缩丁醛根据ASTM D1238标准方法在190℃、2.16kg下测量，具有12g/10min的熔体流动速率。
其中，该聚乙烯醇缩丁醛是由废弃胶合安全玻璃回收所制得。
该鞘部20的厚度为0.25mm。
综上所述，本发明复合纱线的鞘部完全包覆该芯部，且该鞘部是由含有聚乙烯醇缩丁醛的包覆材料所构成，而能在后续以所述复合纱线制备织物时直接透过热熔方式来让织物定型，有助于简化织造制程，加上所使用的包覆材料是以聚乙烯醇缩丁醛为主，完全能满足友善环境的要求，故确实能达成本发明的目的。
以上所述仅是本发明的优选实施例而已，并非对本发明做任何形式上的限制，虽然本发明已以优选实施例揭露如上，然而并非用以限定本发明，任何本领域技术人员，在不脱离本发明技术方案的范围内，当可利用上述揭示的技术内容做出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。

Claims (8)

1.一种复合纱线，其包含：
一芯部，所述芯部是由一热塑性材料所构成，所述热塑性材料选自下列所组成的群组：聚酯、聚酰胺、聚丙烯腈和其组合；及
一鞘部，所述鞘部包覆所述芯部且由一包覆材料所构成，其中，所述包覆材料包含聚乙烯醇缩丁醛，所述聚乙烯醇缩丁醛根据ASTM D1238标准方法在190℃、2.16kg下测量，具有2克/10分钟至35克/10分钟的熔体流动速率。
2.根据权利要求1所述的复合纱线，其特征在于，所述鞘部的厚度为0.08毫米至5.0毫米。
3.根据权利要求1所述的复合纱线，其特征在于，所述鞘部的厚度为0.08毫米至0.9毫米。
4.根据权利要求1所述的复合纱线，其特征在于，所述包覆材料进一步包含一热塑性聚氨酯。
5.根据权利要求4所述的复合纱线，其特征在于，以所述聚乙烯醇缩丁醛为100重量份，所述热塑性聚氨酯的含量为大于0重量份至100重量份。
6.根据权利要求1所述的复合纱线，其特征在于，所述包覆材料进一步包含一增塑剂。
7.根据权利要求6所述的复合纱线，其特征在于，以所述聚乙烯醇缩丁醛为100重量份，所述增塑剂的含量为20重量份至100重量份。
8.根据权利要求1至7中任一项所述的复合纱线，其特征在于，所述聚乙烯醇缩丁醛根据ASTM D1238标准方法在190℃、2.16kg下测量，具有7克/10分钟至15克/10分钟的熔体流动速率。
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