CN104313792A - 一种阻燃性针刺棉及其制备方法 - Google Patents

一种阻燃性针刺棉及其制备方法 Download PDF

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CN104313792A
CN104313792A CN201410481639.6A CN201410481639A CN104313792A CN 104313792 A CN104313792 A CN 104313792A CN 201410481639 A CN201410481639 A CN 201410481639A CN 104313792 A CN104313792 A CN 104313792A
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陈东方
陈洁
潘如如
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DANYANG CHAOCHAO GARMENT Co Ltd
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Abstract

本发明涉及一种阻燃性针刺棉的制备方法,该阻燃性针刺棉由重量比为30-50%的芳纶1313纤维,70-50%的ES纤维制备而成;其生产过程包括选料、开松、梳棉、铺网、针刺、烘箱烘烤、压辊冷却、成型包装等工序;采用一次梳理成型,将梳理后的纤维通过一种一次性摆头,直接一次铺网进入预针刺,经过下刺-上刺-下刺-上刺进入烘箱烘烤,温度为150-190℃,进入烘箱烘定时间为14-25s,压辊冷却定型,冷却温度在-5-20℃。通过上述方法生产的针刺棉,具有良好的阻燃性能,同时有效解决了阻燃材料的熔滴问题,可用作汽车内饰材料。

Description

一种阻燃性针刺棉及其制备方法
技术领域
本发明涉及针刺棉的制备工艺,具体为一种阻燃性针刺棉及其制备方法。
背景技术
纤维制品燃烧引起的火灾己成为现代社会重大灾害之一,对由火灾引起的死亡事故进行调查的结果表明,由室内装饰品及纺织品引起的火灾占第一位,同时研究发现,可燃性纺织品燃烧时释放的有害气体对人体的危害程度大大超过阻燃性纺织品。近年来,随着人们消费水平的提高,汽车的人均拥有量也迅速增大,汽车内饰材料的需求也与日俱增,内饰材料的消耗也巨大。汽车用的内饰材料的安全指标要求较高,其中阻燃性是这些指标中的重要指标之一。
现有的阻燃纤维一般有几类,一类是天然纤维,天然纤维只能依靠后处理方法达到阻燃要求;还有一类为合成纤维,它可以通过在纺丝液中添加阻燃剂等办法制得阻燃纤维;再有一类是特殊纤维,例如碳纤维等。但这些纤维不足之处主要是,阻燃效果不好,产品熔点低,易着火,部分有毒,且应用范围狭窄,成本高等,而特殊纤维受适用范围和价格的限制。因此,阻燃纤维的开发现状还难以达到使用要求。
目前世界上所用的反应型阻燃剂主要是磷系化合物,磷系阻燃剂共聚法制得的磷系共聚阻燃涤纶已能达到理想的阻燃效果 但是阻燃涤纶存在着严重的熔滴问题: 一方面,熔滴可能导致火焰蔓延到其他地方,引起更大火灾;另一方面,容易引起烫伤烧伤等二次伤害。如何有效地解决涤纶熔滴仍是目前的一个难题。
芳纶1313纤维的耐高温和阻燃性能明显优于其他普通纤维,属于难燃纤维,其不会在空气中燃烧,也不助燃,具有自熄性,是目前技术较为成熟使用最为广泛的阻燃纤维。
ES纤维,即低熔点双组份复合纤维,是差别化纤维一种。ES纤维为双组分皮芯结构复合纤维,皮层组织熔点低且柔软性好,芯层组织则熔点高、强度高。这种纤维经过热处理后,皮层一部分熔融而起粘结作用,其余仍保留纤维状态,同时具有热收缩率小的特征。该纤维特别适合用作热风穿透工艺生产卫生材料、保暖填充料、过滤材料等产品。
发明内容
本发明的目的在于改进现有技术的不足,提供一种具有阻燃性能的用于汽车内饰材料的针刺棉。
为解决上述技术问题,本发明提供了一种阻燃性针刺棉,其组分及其质量百分比为:芳纶1313纤维30-50% ,ES纤维70-50%;
上述阻燃性针刺棉的制备方法,主要步骤如下: 
(1) 将芳纶1313纤维与ES纤维两种原料按照规定的比例混合;
(2)将混合后的原料通过开松机进行开松;
(3)将开松后的混合物进行纤维梳理;
(4)用梳理后的纤维进行铺网;
(5)对成网后的纤维进行预针刺,然后进行主针刺,形成一定厚度的针刺棉;
(6) 进入烘箱内烘烤,烘箱由电热丝加热,烘烤温度150-190℃,时间14-25秒;
(7)将经过烘箱的产品通过冷却机,冷却温度为-5-20℃,将对从烘箱里出来的棉进行冷却定型,使棉层更具有蓬松度;
(8)成型:对照产品要求对烘箱出来的棉进行切割、裁边,与此同时进行卷筒并包装。
其中,所述铺网中,采用一种一次性摆头,一次成型,不需叠加,一次多层铺网,缩短工艺流程。
其中,在所述针刺中,为了使得针刺过程顺利进行,在正常针刺之前先进行一个预针刺过程,即预刺机的植针密度较小,针深较大,其主要目的是对高度蓬松且纤网间抱合力小的纤网。然后对纤网先后进行下针刺和上针刺两个针刺过程,这样可以使得制成的针刺棉强度、密度和弹性的综合性能优越。
其中,所述烘箱采用电热丝加热,相比油加热更为直接,热能利用率高,该烘箱的生产成本比油加热节省45%,同时改善了生产环境,解决了之前锅炉对环境的影响以及严重耗能的情况,利于实现清洁生产,节约资源,环保无污染。
本发明的技术效果:
(1)本发明的阻燃性针刺棉,采用芳纶1313纤维和ES纤维制成,芳纶1313纤维属于难燃纤维,其不会在空气中燃烧,也不助燃,具有自熄性,是目前技术较为成熟使用最为广泛的阻燃纤维。因此,采用采用芳纶1313纤维和ES纤维混合生产针刺棉,可使产品具有良好的阻燃性能,同时有效解决了阻燃材料的熔滴问题;
(2)生产方法采用一种一次性摆头,一次多层铺网,能够缩短生产流程,减少消耗,适于产业化生产。
具体实施方式
实施例1
本实施例的阻燃性针刺棉,其组分及其质量百分比为:芳纶1313纤维40% ,ES纤维60%。该阻燃性针刺棉的制备方法,其步骤包括:
(1)按质量百分比取40%的芳纶1313纤维和60%的ES纤维进行均匀混合,采取多层平铺的方式喂入开松机,以保证能均匀地按照配方比例供棉;
(2)将混合后的原料经过开松机均匀的开松,通过输棉风机输送给下道工序;
(3)开松后纤维由吸风机吸入与梳理机相连的棉箱内储存,由棉箱喂入梳棉机上进行梳理;
(4)经梳理机梳理后的纤维通过铺网机一次多层叠加铺网,形成均匀的多层棉网,铺设宽度为0.6m,单层厚度为0.002m,输送给后道工序;
(5)对成网后的纤维进行预针刺,然后进行主针刺,采用下刺-上刺-下刺-上刺进行,形成一定厚度的针刺棉;
(6)经过烘箱,使棉层达到定型的效果,烘烤温度175℃,时间17秒; 
(7)将经过烘箱的产品通过冷却机,冷却温度为15℃,将对从烘箱里出来的棉进行冷却定型,使棉层更具有蓬松度;
(8)成型:对照产品要求对烘箱出来的棉进行切割、裁边,与此同时进行卷筒并包装。
按GB/T17591-2006《阻燃织物》标准检验,面料燃烧特征为炭化,无滴落物,测试续燃时间和阴燃时间均为0秒。
实施例2
本实施例的阻燃性针刺棉,其组分及其质量百分比为:芳纶1313纤维50% ,ES纤维50%。该阻燃性针刺棉的制备方法,其步骤包括:
(1)按质量百分比取50%的芳纶1313纤维和60%的ES纤维进行均匀混合,采取多层平铺的方式喂入开松机,以保证能均匀地按照配方比例供棉;
(2)将混合后的原料经过开松机均匀的开松,通过输棉风机输送给下道工序;
(3)开松后纤维由吸风机吸入与梳理机相连的棉箱内储存,由棉箱喂入梳棉机上进行梳理;
(4)经梳理机梳理后的纤维通过铺网机一次多层叠加铺网,形成均匀的多层棉网,铺设宽度为0.6m,单层厚度为0.002m,输送给后道工序;
(5)对成网后的纤维进行预针刺,然后进行主针刺,采用下刺-上刺-下刺-上刺进行,形成一定厚度的针刺棉;
(6)经过烘箱,使棉层达到定型的效果,烘烤温度185℃,时间15秒; 
(7)将经过烘箱的产品通过冷却机,冷却温度为13℃,将对从烘箱里出来的棉进行冷却定型,使棉层更具有蓬松度;
(8)成型:对照产品要求对烘箱出来的棉进行切割、裁边,与此同时进行卷筒并包装。
按GB/T17591-2006《阻燃织物》标准检验,面料燃烧特征为炭化,无滴落物,测试续燃时间和阴燃时间均为0秒。

Claims (4)

1.一种阻燃性针刺棉的制备方法,其特征在于:所述阻燃性针刺棉包括重量百分比为芳纶1313纤维30-50%、ES纤维70-50%,将上述纤维按照以下步骤制备: 
(1) 将芳纶1313纤维与ES纤维两种原料按照规定的比例混合;
(2)将混合后的原料通过开松机进行开松;
(3)将开松后的混合物进行纤维梳理;
(4)用梳理后的纤维进行铺网;
(5)对成网后的纤维进行预针刺,然后进行主针刺,形成一定厚度的针刺棉;
(6) 进入烘箱内烘烤,烘箱由电热丝加热,烘烤温度150-190℃,时间14-25秒;
(7)将经过烘箱的产品通过冷却机,冷却温度为-5-20℃,将对从烘箱里出来的棉进行冷却定型,使棉层更具有蓬松度;
(8)成型:对照产品要求对烘箱出来的棉进行切割、裁边,与此同时进行卷筒并包装。
2.如权利1所述的一种阻燃性针刺棉的制备方法,其特征在于:所述的铺网中,采用一种一次性摆头,一次成型,不需叠加多层铺网,缩短工艺流程。
3.如权利1所述的一种阻燃性针刺棉的制备方法,其特征在于:所述的针刺中,为了使得针刺过程顺利进行,在正常针刺之前先进行一个预针刺过程,即预刺机的植针密度较小,针深较大,其主要目的是对高度蓬松且纤网间抱合力小的纤网;然后对纤网先后进行下针刺和上针刺两个针刺过程,这样可以使得制成的针刺棉强度、密度和弹性的综合性能优越。
4.如权利1所述的一种阻燃性针刺棉的制备方法,其特征在于:所述的烘箱采用电热丝加热,相比油加热更为直接,热能利用率高,该烘箱的生产成本比油加热节省45%,同时改善了生产环境,解决了之前锅炉对环境的影响以及严重耗能的情况,利于实现清洁生产,节约资源,环保无污染。
CN201410481639.6A 2014-09-20 2014-09-20 一种阻燃性针刺棉及其制备方法 Pending CN104313792A (zh)

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CN104611835A (zh) * 2015-02-13 2015-05-13 上海特安纶纤维有限公司 包含含砜基的芳香族聚合物纤维的絮片及其制备方法
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CN114687064A (zh) * 2020-12-30 2022-07-01 无锡市正龙无纺布有限公司 一种车厢保温防火材料
CN115652652A (zh) * 2022-11-14 2023-01-31 东华大学 一种烟气过滤型阻燃保暖絮片及其制备方法
CN116200877A (zh) * 2023-01-09 2023-06-02 桐乡市健民过滤材料有限公司 一种可水洗的阻燃滤材的制造方法

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