CN110760965A - 一种包芯纱的制备方法 - Google Patents
一种包芯纱的制备方法 Download PDFInfo
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Abstract
本发明公开了一种包芯纱的制备方法,属于纺织制备技术领域。本发明包芯纱中和了天然纤维的特点,使棉纤维的强度和弹性得以增加;本发明利用天然植物纤维制备得到的棉纱浸渍于带有二氧化钛的增强粘合剂后,二氧化钛颗粒在液态,尤其是在极性的介质中,因表面带有电荷就会吸附相反的电荷而形成扩散双电层,使颗粒有效直径增加,使微小颗粒物在通过棉纱时由于静电效应被牢牢吸附在棉纱的孔隙中,所用活性炭是用竹片高温无氧下烧制而成,竹子呈酸性,制备所得活性炭也是酸性的,因而可起到抑菌作用,并且可提高棉纤维的吸湿特性,使其制备的衣物、棉被等具有吸汗能力,穿着更舒适,具有广阔的应用前景。
Description
技术领域
本发明公开了一种包芯纱的制备方法,属于纺织制备技术领域。
背景技术
包芯纱又称复合纱或包覆纱,它是由两种或两种以上的纤维组合而成的一种新型纱线。最初的包芯纱是以棉纤维为皮、涤纶短纤纱为芯开发的短纤维与短纤维包芯纱。新珠线带涤包涤包芯线。
包芯纱一般以强力和弹力都较好的合成纤维长丝为芯丝,外包棉、毛、粘胶纤维等短纤维一起加捻而纺制成的纱。包芯纱兼有长丝芯纱和外包短纤维的优良性能。比较常见的包芯纱有涤棉包芯纱,它以涤纶长丝为芯纱,外包棉纤维。还有氨纶包芯纱,它是以氨纶长丝为芯纱,外包其他纤维制成的纱线。由这种包芯纱制成的针织物或牛仔裤料,穿着时伸缩自如,舒适合体。
主要目的是为了增强棉帆布,并保持棉纤维遇水膨胀而具有的拒水性,利用涤纶在雨中受潮时具有抗拉伸性、抗撕裂性和抗收缩性。现阶段的包芯纱已发展到许多种类型,归纳起来有:短纤维与短纤维包芯纱、化纤长丝与短纤维包芯纱、化纤长丝与化纤长丝包芯纱三大类。目前使用较多的包芯纱一般是以化纤长丝为芯纱,外包各种短纤维而形成的一种独特结构的包芯纱。它的芯纱常用的化纤长丝有涤纶长丝、锦纶长丝、氨纶长丝等。外包短纤维有棉、涤棉、涤纶、锦纶、腈纶及毛纤维等。
包芯纱除了具有特殊的结构以外,还有很多优点,它可以利用芯纱化纤长丝优良的物理性能和外包短纤维的性能和表面特征,充分发挥两种纤维的特长并弥补它们的不足。如涤棉包芯纱可以充分发挥涤纶长丝挺爽、抗折绉、易洗快干的优点,同时又可以发挥外包棉纤维吸湿好、静电少、不易起毛起球的特长。织成的织物易染色整理、穿着舒适,容易洗涤,且色泽鲜艳,美观大方。包芯纱还能在保持和改进织物性能的同时,减轻织物的重量,以及利用化纤长丝和外包纤维的不同化学性能,在织物染整加工时,用化学药品烂去一部分外包纤维,制成具有立体花纹效应的烂花织物等。包芯纱的用途,目前以棉为皮、涤纶为芯的包芯纱用途最广,可用于生产学生服、工作服、衬衣、浴衣面料、裙子面料、被单和装饰布等。
近年来,随着科学技术的迅速发展和人民生活的不断提高,对产品质量和档次的要求日益提高,传统的氨纶包芯纱加工的产品已不能满足人们的单一需求,各种服饰面料的需求量不断增大,其中通过改变包芯纱的成分,如纯棉纱包纱包芯纱,使其具有良好的透气性和独特的花式效果,织物表面呈现出星目颗粒状,立体感极强,质地风格挺括而且柔软,面料具有良好的弹性、悬垂性、抗皱性能等特点,但目前包芯纱还存在成纱强力较低,表面手感粗硬,不易吸水以及弹性较差的缺点。
因此,发明一种强度高且吸水性好的包芯纱对纺织制备技术领域是很有必要的。
发明内容
本发明主要解决的技术问题,针对目前包芯纱成纱后强力较低,表面手感粗硬,不易吸水以及弹性较差的缺陷,提供了一种包芯纱的制备方法。
为了解决上述技术问题,本发明所采用的技术方案是:
一种包芯纱的制备方法为:
(1)将聚酯长纤维与混合纤维并条集束,浸入装有增强粘合剂的浸渍槽中,对浸渍槽加热升温至120~150℃,从浸渍槽以70~90m/min的速率牵引得到并合纤维;
(2)再将并合纤维进行粗纱工艺,再进行细纱工艺,得到包芯纱;
所述的混合纤维具体制备步骤为:
(1)按重量份数计,取80~120份天然植物纤维置于400~450份质量分数为30%的硫酸溶液中浸泡,控制浸泡温度为50~55℃,浸泡处理时间为1~2h,取出后放入铝锅中,再添加100~120份质量分数为40%的氢氧化钠溶液、50~60份质量分数为4%的多聚磷酸钠溶液、30~40份质量分数为10%的硅酸钠溶液,水浴加热升温至80~90℃,蒸煮2~3h后,过滤,去除滤液得到碱煮纤维;
(2)将废旧棉织品或棉纱边角料混合后用破碎机打碎,得到长度2~3mm的棉质纤维,将上述碱煮纤维与棉质纤维按质量比为1︰4混合,用150~180mL质量分数为10%的盐酸浸泡8~10min后,放入超声机中以25~30kHz的频率超声处理10~15min后,用水冲洗,置于烘箱中,加热升温至100~110℃,干燥10~12h,得到混合纤维;
所述的增强粘合剂具体制备步骤为:
按重量份数计,取4~5份羟丙基二淀粉磷酸酯用70~80份水稀释,加热升温至70~80℃,得到粘性浆料,随后向粘性浆料中加入20~25份纳米二氧化钛、10~15份电气石粉、10~15份氧化锌,搅拌得到增强粘合剂;
所述的聚酯长纤维具体制备步骤为:
(1)取竹片置于马弗炉中,抽去马弗炉中空气,加热升温至1000~1100℃,烧制3~4h,得到竹炭,将竹炭用气流粉碎机粉碎,得到粒径为400~500nm的活性炭粉末,将对苯二甲酸乙二醇酯的母粒与活性炭粉末按质量比为3︰2混合,得到预分散料;
(2)将预分散料置于螺杆挤出机中,熔融挤出制得聚酯熔体,再将将聚酯熔体送入设定温度为230~250℃的纺丝箱体中,在三角形中空喷丝板中喷出聚酯长纤维。
所述的包芯纱具体制备步骤(1)中聚酯长纤维与混合纤维按质量比为1︰2 并条集束。
所述的包芯纱具体制备步骤(1)中并合过程采用“顺牵伸、大隔距、轻定量、低速度”的工艺原则进行。
所述的包芯纱具体制备步骤(1)中并合工艺参数为:头道并条定量10.8~12.8g/5m,后区牵伸1.30~1.35倍,隔距10×18 mm,前张力牵伸1.12倍,二道并条定量9.8~10.9g/5m,后区牵伸1.16~1.20倍,隔距10×16 mm,前张力牵伸1.00倍,头道和二道并条机均采用6根并合。
所述的包芯纱具体制备步骤(2)中粗纱工艺采用轻定量、大隔距的工艺原则。
所述的包芯纱具体制备步骤(2)中粗纱工艺参数:总牵伸7.29倍,后区牵伸1.28倍,捻系数75.7,钳口隔距5.5mm,罗拉隔距29 mm×40 mm,定量4.2g/10m,前罗拉速度227r/min;细纱工艺参数:总牵伸26.56倍,后区牵伸1.21倍,捻系数357,锭速8500~9000r/min,钳口隔距4.0mm,罗拉隔距18mm×35mm,前罗拉速度172 r/min。
所述的混合纤维具体制备步骤(1)中天然植物纤维是亚麻纤维、苎麻纤维的一种。
所述的增强粘合剂具体制备步骤(1)中各原料按重量份数计,包括4~5份羟丙基二淀粉磷酸酯70~80份水、20~25份纳米二氧化钛、10~15份电气石粉、10~15份氧化锌。
所述的聚酯长纤维具体制备步骤(2)中所得聚酯熔体的特性粘度为0.55~0.60dL/g。
本发明的有益效果是:
(1)本发明以天然植物纤维为原料经酸浸、水浴加热条件下碱煮、过滤得到碱煮纤维,将碱煮纤维与棉质纤维相混,用盐酸浸泡中和、超声处理、洗涤干燥得到混合纤维,以竹片为原料在高温无氧条件下烧制得到活性炭,将活性炭与聚酯共混复合得到人造纤维,牵引拉丝时将混合纤维与天然植物纤维共混,浸渍于增强粘合剂中并牵引并合,本发明采用废旧棉织品和棉纱边角废料与其它添加剂再生成混合纤维,与掺杂竹炭活性炭粉的聚酯纤维进行并条集束,再进行粗纱。细纱工艺,得到的包芯纱,本发明包芯纱中和了天然纤维的特点,弥补了棉纤维的缺陷,使棉纤维的强度和弹性得以增加,优化了包芯纱的表面手感;
(2)本发明利用天然植物纤维制备得到的棉纱浸渍于带有二氧化钛的增强粘合剂后,二氧化钛颗粒在液态,尤其是在极性的介质中,因表面带有电荷就会吸附相反的电荷而形成扩散双电层,使颗粒有效直径增加,当颗粒彼此接近时,因各具同性电荷而相斥,有利于分散体系的稳定,纤维表面带负电荷会使作为包覆膜的二氧化钛小颗粒带正电,从而使微小颗粒物在通过棉纱时由于静电效应被牢牢吸附在棉纱的孔隙中,所用活性炭是用竹片高温无氧下烧制而成,竹子呈酸性,制备所得活性炭也是酸性的,因而可起到抑菌作用,并且可提高棉纤维的吸湿特性,使其制备的衣物、棉被等具有吸汗能力,穿着更舒适,具有广阔的应用前景。
具体实施方式
按重量份数计,取80~120份天然植物纤维置于400~450份质量分数为30%的硫酸溶液中浸泡,控制浸泡温度为50~55℃,浸泡处理时间为1~2h,取出后放入铝锅中,再添加100~120份质量分数为40%的氢氧化钠溶液、50~60份质量分数为4%的多聚磷酸钠溶液、30~40份质量分数为10%的硅酸钠溶液,水浴加热升温至80~90℃,蒸煮2~3h后,过滤,去除滤液得到碱煮纤维,所述的天然植物纤维是亚麻纤维、苎麻纤维的一种;将废旧棉织品或棉纱边角料混合后用破碎机打碎,得到长度2~3mm的棉质纤维,将上述碱煮纤维与棉质纤维按质量比为1︰4混合,用150~180mL质量分数为10%的盐酸浸泡8~10min后,放入超声机中以25~30kHz的频率超声处理10~15min后,用水冲洗,置于烘箱中,加热升温至100~110℃,干燥10~12h,得到混合纤维,备用;按重量份数计,取4~5份羟丙基二淀粉磷酸酯用70~80份水稀释,加热升温至70~80℃,得到粘性浆料,随后向粘性浆料中加入20~25份纳米二氧化钛、10~15份电气石粉、10~15份氧化锌搅拌得到增强粘合剂,备用;取竹片置于马弗炉中,抽去马弗炉中空气,加热升温至1000~1100℃,烧制3~4h,得到竹炭,将竹炭用气流粉碎机粉碎,得到粒径为400~500nm的活性炭粉末,将对苯二甲酸乙二醇酯的母粒与活性炭粉末按质量比为3︰2混合,得到预分散料;将上述预分散料置于螺杆挤出机中,熔融挤出制得聚酯熔体,所得聚酯熔体的特性粘度为0.55~0.60dL/g,再将聚酯熔体送入设定温度为230~250℃的纺丝箱体中,在三角形中空喷丝板中喷出聚酯长纤维;将上述聚酯长纤维与备用混合纤维按质量比为1︰2并条集束,浸入装有备用增强粘合剂的浸渍槽中,对浸渍槽加热升温至120~150℃,从浸渍槽以70~90m/min的速率牵引得到并合纤维,其中并条集束过程采用“顺牵伸、大隔距、轻定量、低速度”的工艺原则,其工艺参数为:头道并条定量10.8~12.8g/5m,后区牵伸1.30~1.35倍,隔距10×18 mm,前张力牵伸1.12倍,二道并条定量9.8~10.9 g/5m,后区牵伸1.16~1.20倍,隔距10×16 mm,前张力牵伸1.00倍,头道和二道并条机均采用6根并合;再将上述并合纤维进行粗纱工艺,采用轻定量、大隔距的工艺原则,其中粗纱工艺参数总牵伸7.29倍,后区牵伸1.28倍,捻系数75.7,钳口隔距5.5mm,罗拉隔距29 mm×40 mm,定量4.2g/10m,前罗拉速度227r/min,再进行细纱工艺,其中细纱工艺参数:总牵伸26.56倍,后区牵伸1.21倍,捻系数357,锭速8500~9000r/min,钳口隔距4.0mm,罗拉隔距18mm×35mm,前罗拉速度172 r/min,得到包芯纱。
实施例1
天然植物纤维:亚麻纤维
混合纤维的制备:
按重量份数计,取80份亚麻纤维置于400份质量分数为30%的硫酸溶液中浸泡,控制浸泡温度为50℃,浸泡处理时间为1h,取出后放入铝锅中,再添加100份质量分数为40%的氢氧化钠溶液、50份质量分数为4%的多聚磷酸钠溶液、30份质量分数为10%的硅酸钠溶液,水浴加热升温至80℃,蒸煮2h后,过滤,去除滤液得到碱煮纤维,所述的天然植物纤维是亚麻纤维、苎麻纤维的一种;
将废旧棉织品或棉纱边角料混合后用破碎机打碎,得到长度2mm的棉质纤维,将上述碱煮纤维与棉质纤维按质量比为1︰4混合,用150mL质量分数为10%的盐酸浸泡8min后,放入超声机中以25kHz的频率超声处理10min后,用水冲洗,置于烘箱中,加热升温至100℃,干燥10h,得到混合纤维,备用;
增强粘合剂的制备:
按重量份数计,取4份羟丙基二淀粉磷酸酯用70份水稀释,加热升温至70℃,得到粘性浆料,随后向粘性浆料中加入20份纳米二氧化钛、10份电气石粉、10份氧化锌搅拌得到增强粘合剂,备用;
聚酯长纤维的制备:
取竹片置于马弗炉中,抽去马弗炉中空气,加热升温至1000℃,烧制3h,得到竹炭,将竹炭用气流粉碎机粉碎,得到粒径为400nm的活性炭粉末,将对苯二甲酸乙二醇酯的母粒与活性炭粉末按质量比为3︰2混合,得到预分散料;
将上述预分散料置于螺杆挤出机中,熔融挤出制得聚酯熔体,所得聚酯熔体的特性粘度为0.55dL/g,再将聚酯熔体送入设定温度为230℃的纺丝箱体中,在三角形中空喷丝板中喷出聚酯长纤维;
包芯纱的制备:
将上述聚酯长纤维与备用混合纤维按质量比为1︰2并条集束,浸入装有备用增强粘合剂的浸渍槽中,对浸渍槽加热升温至120℃,从浸渍槽以70m/min的速率牵引得到并合纤维,其中并条集束过程采用“顺牵伸、大隔距、轻定量、低速度”的工艺原则,其工艺参数为:头道并条定量10.8g/5m,后区牵伸1.30倍,隔距10×18 mm,前张力牵伸1.12倍,二道并条定量9.8 g/5m,后区牵伸1.16倍,隔距10×16 mm,前张力牵伸1.00倍,头道和二道并条机均采用6根并合;
再将上述并合纤维进行粗纱工艺,采用轻定量、大隔距的工艺原则,其中粗纱工艺参数总牵伸7.29倍,后区牵伸1.28倍,捻系数75.7,钳口隔距5.5mm,罗拉隔距29 mm×40 mm,定量4.2g/10m,前罗拉速度227r/min,再进行细纱工艺,其中细纱工艺参数:总牵伸26.56倍,后区牵伸1.21倍,捻系数357,锭速8500r/min,钳口隔距4.0mm,罗拉隔距18mm×35mm,前罗拉速度172 r/min,得到包芯纱。
实施例2
天然植物纤维:亚麻纤维
混合纤维的制备:
按重量份数计,取100份亚麻纤维置于420份质量分数为30%的硫酸溶液中浸泡,控制浸泡温度为52℃,浸泡处理时间为1.5h,取出后放入铝锅中,再添加110份质量分数为40%的氢氧化钠溶液、55份质量分数为4%的多聚磷酸钠溶液、35份质量分数为10%的硅酸钠溶液,水浴加热升温至85℃,蒸煮2.5h后,过滤,去除滤液得到碱煮纤维,所述的天然植物纤维是亚麻纤维、苎麻纤维的一种;
将废旧棉织品或棉纱边角料混合后用破碎机打碎,得到长度2mm的棉质纤维,将上述碱煮纤维与棉质纤维按质量比为1︰4混合,用170mL质量分数为10%的盐酸浸泡9min后,放入超声机中以27kHz的频率超声处理12min后,用水冲洗,置于烘箱中,加热升温至105℃,干燥11h,得到混合纤维,备用;
增强粘合剂的制备:
按重量份数计,取4份羟丙基二淀粉磷酸酯用75份水稀释,加热升温至75℃,得到粘性浆料,随后向粘性浆料中加入22份纳米二氧化钛、12份电气石粉、12份氧化锌搅拌得到增强粘合剂,备用;
聚酯长纤维的制备:
取竹片置于马弗炉中,抽去马弗炉中空气,加热升温至1050℃,烧制3.5h,得到竹炭,将竹炭用气流粉碎机粉碎,得到粒径为450nm的活性炭粉末,将对苯二甲酸乙二醇酯的母粒与活性炭粉末按质量比为3︰2混合,得到预分散料;
将上述预分散料置于螺杆挤出机中,熔融挤出制得聚酯熔体,所得聚酯熔体的特性粘度为0.57dL/g,再将聚酯熔体送入设定温度为240℃的纺丝箱体中,在三角形中空喷丝板中喷出聚酯长纤维;
包芯纱的制备:
将上述聚酯长纤维与备用混合纤维按质量比为1︰2并条集束,浸入装有备用增强粘合剂的浸渍槽中,对浸渍槽加热升温至140℃,从浸渍槽以80m/min的速率牵引得到并合纤维,其中并条集束过程采用“顺牵伸、大隔距、轻定量、低速度”的工艺原则,其工艺参数为:头道并条定量11.8g/5m,后区牵伸1.32倍,隔距10×18 mm,前张力牵伸1.12倍,二道并条定量10.5 g/5m,后区牵伸1.18倍,隔距10×16 mm,前张力牵伸1.00倍,头道和二道并条机均采用6根并合;
再将上述并合纤维进行粗纱工艺,采用轻定量、大隔距的工艺原则,其中粗纱工艺参数总牵伸7.29倍,后区牵伸1.28倍,捻系数75.7,钳口隔距5.5mm,罗拉隔距29 mm×40 mm,定量4.2g/10m,前罗拉速度227r/min,再进行细纱工艺,其中细纱工艺参数:总牵伸26.56倍,后区牵伸1.21倍,捻系数357,锭速8700r/min,钳口隔距4.0mm,罗拉隔距18mm×35mm,前罗拉速度172 r/min,得到包芯纱。
实施例3
天然植物纤维:苎麻纤维
混合纤维的制备:
按重量份数计,取120份苎麻纤维置于450份质量分数为30%的硫酸溶液中浸泡,控制浸泡温度为55℃,浸泡处理时间为2h,取出后放入铝锅中,再添加120份质量分数为40%的氢氧化钠溶液、60份质量分数为4%的多聚磷酸钠溶液、40份质量分数为10%的硅酸钠溶液,水浴加热升温至90℃,蒸煮3h后,过滤,去除滤液得到碱煮纤维,所述的天然植物纤维是亚麻纤维、苎麻纤维的一种;
将废旧棉织品或棉纱边角料混合后用破碎机打碎,得到长度3mm的棉质纤维,将上述碱煮纤维与棉质纤维按质量比为1︰4混合,用180mL质量分数为10%的盐酸浸泡10min后,放入超声机中以30kHz的频率超声处理15min后,用水冲洗,置于烘箱中,加热升温至110℃,干燥12h,得到混合纤维,备用;
增强粘合剂的制备:
按重量份数计,取5份羟丙基二淀粉磷酸酯用80份水稀释,加热升温至80℃,得到粘性浆料,随后向粘性浆料中加入25份纳米二氧化钛、15份电气石粉、15份氧化锌搅拌得到增强粘合剂,备用;
聚酯长纤维的制备:
取竹片置于马弗炉中,抽去马弗炉中空气,加热升温至1100℃,烧制4h,得到竹炭,将竹炭用气流粉碎机粉碎,得到粒径为500nm的活性炭粉末,将对苯二甲酸乙二醇酯的母粒与活性炭粉末按质量比为3︰2混合,得到预分散料;
将上述预分散料置于螺杆挤出机中,熔融挤出制得聚酯熔体,所得聚酯熔体的特性粘度为0.60dL/g,再将聚酯熔体送入设定温度为250℃的纺丝箱体中,在三角形中空喷丝板中喷出聚酯长纤维;
包芯纱的制备:
将上述聚酯长纤维与备用混合纤维按质量比为1︰2并条集束,浸入装有备用增强粘合剂的浸渍槽中,对浸渍槽加热升温至150℃,从浸渍槽以90m/min的速率牵引得到并合纤维,其中并条集束过程采用“顺牵伸、大隔距、轻定量、低速度”的工艺原则,其工艺参数为:头道并条定量12.8g/5m,后区牵伸1.35倍,隔距10×18 mm,前张力牵伸1.12倍,二道并条定量10.9 g/5m,后区牵伸1.20倍,隔距10×16 mm,前张力牵伸1.00倍,头道和二道并条机均采用6根并合;
再将上述并合纤维进行粗纱工艺,采用轻定量、大隔距的工艺原则,其中粗纱工艺参数总牵伸7.29倍,后区牵伸1.28倍,捻系数75.7,钳口隔距5.5mm,罗拉隔距29 mm×40 mm,定量4.2g/10m,前罗拉速度227r/min,再进行细纱工艺,其中细纱工艺参数:总牵伸26.56倍,后区牵伸1.21倍,捻系数357,锭速9000r/min,钳口隔距4.0mm,罗拉隔距18mm×35mm,前罗拉速度172 r/min,得到包芯纱。
对比例1:与实施例2的制备方法基本相同,唯有不同的是缺少混合纤维。
对比例2:与实施例2的制备方法基本相同,唯有不同的是缺少增强粘合剂。
对比例3:杭州某公司生产的包芯纱。
包芯纱强度测试采用HD021N 型电子单纱强力仪参照GB/T3916标准进行检测。
吸水性测试:将包芯纱放置在温度为25℃、相对湿度为60%的环境下静置24h,使其回潮率达到平衡,这时测定包芯纱干重之后把放入水中24h,使其溶胀吸水饱和后,用200目的筛网过滤30min,滤去包芯纱表面过量的水,称量包芯纱重量,计算吸水率。
弹性测试采用织物弹性试验机与织物弹性回复率测试仪进行检测。
表1:包芯纱性能测定结果
检测项目 | 实例1 | 实例2 | 实例3 | 对比例1 | 对比例2 | 对比例3 |
单纱断裂强力(cN) | 4710.6 | 4711.5 | 4712.3 | 2564.5 | 2832.8 | 2845.9 |
断裂伸长率(%) | 10.24 | 10.26 | 10.32 | 7.12 | 7.23 | 7.56 |
表面手感 | 柔顺 | 柔顺 | 柔顺 | 粗硬 | 粗硬 | 粗硬 |
吸水率/% | 380.3 | 382.4 | 385.2 | 255.4 | 265.8 | 304.3 |
纵向弹性恢复率(%) | 94.5 | 94.7 | 94.9 | 75.4 | 75.6 | 80.3 |
横向弹性恢复率(%) | 95.0 | 95.2 | 95.3 | 72.0 | 72.3 | 78.5 |
综合上述,从表1可以看出本发明的包芯纱强力高,表面手感好,吸水率高,易吸水,弹性好,纵向和横向弹性恢复率高,具有广阔应用前景。
以上所述仅为本发明的较佳方式,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (9)
1.一种包芯纱的制备方法,其特征在于具体制备步骤为:
(1)将聚酯长纤维与混合纤维并条集束,浸入装有增强粘合剂的浸渍槽中,对浸渍槽加热升温至120~150℃,从浸渍槽以70~90m/min的速率牵引得到并合纤维;
(2)再将并合纤维进行粗纱工艺,再进行细纱工艺,得到包芯纱;
所述的混合纤维具体制备步骤为:
(1)按重量份数计,取80~120份天然植物纤维置于400~450份质量分数为30%的硫酸溶液中浸泡,控制浸泡温度为50~55℃,浸泡处理时间为1~2h,取出后放入铝锅中,再添加100~120份质量分数为40%的氢氧化钠溶液、50~60份质量分数为4%的多聚磷酸钠溶液、30~40份质量分数为10%的硅酸钠溶液,水浴加热升温至80~90℃,蒸煮2~3h后,过滤,去除滤液得到碱煮纤维;
(2)将废旧棉织品或棉纱边角料混合后用破碎机打碎,得到长度2~3mm的棉质纤维,将上述碱煮纤维与棉质纤维按质量比为1︰4混合,用150~180mL质量分数为10%的盐酸浸泡8~10min后,放入超声机中以25~30kHz的频率超声处理10~15min后,用水冲洗,置于烘箱中,加热升温至100~110℃,干燥10~12h,得到混合纤维;
所述的增强粘合剂具体制备步骤为:
按重量份数计,取4~5份羟丙基二淀粉磷酸酯用70~80份水稀释,加热升温至70~80℃,得到粘性浆料,随后向粘性浆料中加入20~25份纳米二氧化钛、10~15份电气石粉、10~15份氧化锌,搅拌得到增强粘合剂;
所述的聚酯长纤维具体制备步骤为:
(1)取竹片置于马弗炉中,抽去马弗炉中空气,加热升温至1000~1100℃,烧制3~4h,得到竹炭,将竹炭用气流粉碎机粉碎,得到粒径为400~500nm的活性炭粉末,将对苯二甲酸乙二醇酯的母粒与活性炭粉末按质量比为3︰2混合,得到预分散料;
(2)将预分散料置于螺杆挤出机中,熔融挤出制得聚酯熔体,再将将聚酯熔体送入设定温度为230~250℃的纺丝箱体中,在三角形中空喷丝板中喷出聚酯长纤维。
2.根据权利要求1所述的一种包芯纱的制备方法,其特征在于:所述的包芯纱具体制备步骤(1)中聚酯长纤维与混合纤维按质量比为1︰2 并条集束。
3.根据权利要求1所述的一种包芯纱的制备方法,其特征在于:所述的包芯纱具体制备步骤(1)中并合过程采用“顺牵伸、大隔距、轻定量、低速度”的工艺原则进行。
4.根据权利要求1所述的一种包芯纱的制备方法,其特征在于:所述的包芯纱具体制备步骤(1)中并合工艺参数为:头道并条定量10.8~12.8g/5m,后区牵伸1.30~1.35倍,隔距10×18 mm,前张力牵伸1.12倍,二道并条定量9.8~10.9 g/5m,后区牵伸1.16~1.20倍,隔距10×16 mm,前张力牵伸1.00倍,头道和二道并条机均采用6根并合。
5.根据权利要求1所述的一种包芯纱的制备方法,其特征在于:所述的包芯纱具
体制备步骤(2)中粗纱工艺采用轻定量、大隔距的工艺原则。
6.根据权利要求1所述的一种包芯纱的制备方法,其特征在于:所述的包芯纱具体制备步骤(2)中粗纱工艺参数:总牵伸7.29倍,后区牵伸1.28倍,捻系数75.7,钳口隔距5.5mm,罗拉隔距29 mm×40 mm,定量4.2g/10m,前罗拉速度227r/min;细纱工艺参数:总牵伸26.56倍,后区牵伸1.21倍,捻系数357,锭速8500~9000r/min,钳口隔距4.0mm,罗拉隔距18mm×35mm,前罗拉速度172
r/min。
7.根据权利要求1所述的一种包芯纱的制备方法,其特征在于:所述的混合纤维具体制
备步骤(1)中天然植物纤维是亚麻纤维、苎麻纤维的一种。
8.根据权利要求1所述的一种包芯纱的制备方法,其特征在于:所述的增强粘合剂具体制备步骤(1)中各原料按重量份数计,包括4~5份羟丙基二淀粉磷酸酯70~80份水、20~25份纳米二氧化钛、10~15份电气石粉、10~15份氧化锌。
9.根据权利要求1所述的一种包芯纱的制备方法,其特征在于:所述的聚酯长纤维具体制备步骤(2)中所得聚酯熔体的特性粘度为0.55~0.60dL/g。
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CN112127155A (zh) * | 2020-09-27 | 2020-12-25 | 安徽荣业纺织有限公司 | 一种改善棉麻织物在服用过程中易起毛的处理工艺 |
CN112301491A (zh) * | 2020-09-27 | 2021-02-02 | 江西金源纺织有限公司 | 一种微胶粒改进型涤棉复合纱及其制备方法 |
CN112680845B (zh) * | 2020-12-05 | 2022-02-01 | 安徽富颍纺织科技股份有限公司 | 一种防水抗菌的混纺再生棉纱 |
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CN112127155A (zh) * | 2020-09-27 | 2020-12-25 | 安徽荣业纺织有限公司 | 一种改善棉麻织物在服用过程中易起毛的处理工艺 |
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