CN109295691A - 一种间位芳纶废纤维处理方法 - Google Patents

一种间位芳纶废纤维处理方法 Download PDF

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CN109295691A
CN109295691A CN201811098424.0A CN201811098424A CN109295691A CN 109295691 A CN109295691 A CN 109295691A CN 201811098424 A CN201811098424 A CN 201811098424A CN 109295691 A CN109295691 A CN 109295691A
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王丽丽
杨威
钟洲
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X-FIPER NEW MATERIAL Co.,Ltd.
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Super Gomez New Materials (huaian) Co Ltd
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Abstract

本发明公开了一种间位芳纶废纤维处理方法，该种间位芳纶废纤维处理方法包括以下步骤：湿化、纤维梳理、预漂白、初漂白、氧化漂白、中和、水洗、脱水干燥和再梳理，间位芳纶废纤维经湿化和梳理后进入到漂白阶段，漂白阶段设置有多级漂白步骤，具体包括预漂白、初漂白、氧化漂白和中和，漂白后的间位芳纶废纤维经水洗干燥和梳理处理。通过上述方式，本发明漂白前的湿化梳理使间位芳纶废纤维原料整齐便于漂白，去除杂质和疵点；设置有预漂白、初漂白和氧化漂白三级漂白步骤，能够达到均匀的漂白效果且不误伤间位芳纶废纤维，降低间位芳纶废纤维的色度，使其达到三等品的标准，提高经济效益。

Description

一种间位芳纶废纤维处理方法
技术领域
本发明涉纺织技术领域，特别是涉及一种间位芳纶废纤维处理方法。
背景技术
间位芳纶是一种开发早、应用广、产量大、发展快的耐高温纤维品种，其总量居特种纤维的第二位。其分子结构为：聚间苯二甲酰间苯二胺是排列规整的锯齿型大分子，在熔融以前就已经分解，玻璃化温度Tg为270℃，在350℃以下不会发生明显的分解和碳化。当温度超过400℃时，纤维逐渐发脆、炭化直至分解，但是不会产生熔滴；在火焰中不延燃，具有较好的阻燃性，极限氧指数LOI为29％—32％，性能极佳。其具有优异的耐高温性，良好的尺寸稳定性，优良的可纺性、防火性和耐腐蚀性。
芳纶是我国发展航天航空和国防军工必不可少的重要材料，也是支撑我国轨道交通、先进汽车、环保、新能源和通讯技术等产业发展的关键基础材料。提升国产回收芳纶废纤维及其复合材料的技术水平，推动应用工程化水平，对推动我国战略性新兴产业的发展、保护生态环境和公众健康都具有重要意义。
发明内容
本发明主要解决的技术问题是提供一种间位芳纶废纤维处理方法，漂白前的湿化梳理使间位芳纶废纤维原料整齐便于漂白，能够达到均匀的漂白效果且不误伤间位芳纶废纤维，降低间位芳纶废纤维度，使其柔软，便于染色。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种间位芳纶废纤维处理方法，该种间位芳纶废纤维处理方法包括以下步骤：
(1)湿化，将间位芳纶废纤维原料和水以1:3的质量比放置到密闭环境中，水以喷雾形式洒于间位芳纶废纤维原料上，时间为12h；
(2)间位芳纶废纤维梳理，双层梳梳理间位芳纶废纤维原料，使间位芳纶废纤维原料整齐便于漂白，去除杂质和疵点；
(3)预漂白，将梳理好的间位芳纶废纤维原料放置到稳定剂DELINOL 9258中，间位芳纶废纤维原料与稳定剂DELINOL 9258比例为1：5～1:20，PH值为6～8,温度为45℃～60℃，时间1h～2h；
(4)初漂白，将步骤(3)得到的间位芳纶废纤维放置到初漂白液中，初漂白液由亚氯酸钠和水组成，调节PH值为3～4，温度为45℃～80℃，时间0.5h～1h；
(5)氧化漂白，将步骤(4)得到的间位芳纶废纤维放置到漂白液中，漂白液由以下质量百分比成分组成：0.15％～0.8％双氧水、0.05％～0.25％稳定剂DELINOL 9258、0.05％～0.25％稳定剂LAVATEX 9188和水，PH值为9～13,温度为75℃～85℃，时间0.5h～1h；
(6)中和，将步骤(4)中的间位芳纶废纤维置于甲酸水溶液中，其质量比为1:5，时间为时间0.5h～1h；
(7)水洗，将中和后的间位芳纶废纤维置于循环水流中清洗，PH值为6～8，温度为50℃～70℃，时间1h～2h；
(8)脱水干燥，将水洗后的间位芳纶废纤维风干，风干后的间位芳纶废纤维置于间位芳纶废纤维烘干机内烘干处理；
(9)再梳理，将水洗后的间位芳纶废纤维通过双层梳进行梳理。
与现有技术相比，本发明的有益效果是：漂白前的湿化梳理使间位芳纶废纤维原料整齐便于漂白，去除杂质和疵点；设置有预漂白、初漂白和氧化漂白三级漂白步骤，能够达到均匀的漂白效果且不误伤间位芳纶废纤维，降低间位芳纶废纤维度，使其柔软，
便于染色。
具体实施方式
下面对本发明较佳实施例进行详细阐述，以使发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。
本发明实施例包括：
一种间位芳纶废纤维处理方法，该种间位芳纶废纤维处理方法包括以下步骤：
(1)湿化，将间位芳纶废纤维原料和水以1:3的质量比放置到密闭环境中，水以喷雾形式洒于间位芳纶废纤维原料上，时间为12h；
(2)间位芳纶废纤维梳理，双层梳梳理间位芳纶废纤维原料，使间位芳纶废纤维原料整齐便于漂白，去除杂质和疵点；
(3)预漂白，将梳理好的间位芳纶废纤维原料放置到稳定剂DELINOL 9258中，间位芳纶废纤维原料与稳定剂DELINOL 9258比例为1：5～1:20，PH值为6～8,温度为45℃～60℃，时间1h～2h；
(4)初漂白，将步骤(3)得到的间位芳纶废纤维放置到初漂白液中，初漂白液由亚氯酸钠和水组成，调节PH值为3～4，温度为45℃～80℃，时间0.5h～1h；
(5)氧化漂白，将步骤(4)得到的间位芳纶废纤维放置到漂白液中，漂白液由以下质量百分比成分组成：0.15％～0.8％双氧水、0.05％～0.25％稳定剂DELINOL 9258、0.05％～0.25％稳定剂LAVATEX 9188和水，PH值为9～13,温度为75℃～85℃，时间0.5h～1h；
(6)中和，将步骤(4)中的间位芳纶废纤维置于甲酸水溶液中，其质量比为1:5，时间为时间0.5h～1h；
(7)水洗，将中和后的间位芳纶废纤维置于循环水流中清洗，PH值为6～8，温度为50℃～70℃，时间1h～2h；
(8)脱水干燥，将水洗后的间位芳纶废纤维风干，风干后的间位芳纶废纤维置于间位芳纶废纤维烘干机内烘干处理；
(9)再梳理，将水洗后的间位芳纶废纤维通过双层梳进行梳理。
本发明一种间位芳纶废纤维处理方法，漂白前的湿化梳理使间位芳纶废纤维原料整齐便于漂白，能够达到均匀的漂白效果且不误伤间位芳纶废纤维，降低间位芳纶废纤维度，使其柔软，便于染色。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (1)

1.一种间位芳纶废纤维处理方法，其特征在于：该种间位芳纶废纤维处理方法包括以下步骤：
(1)湿化，将间位芳纶废纤维和水以1:3的质量比放置到密闭环境中，水以喷雾形式洒于间位芳纶废纤维上，时间为12h；
(2)间位芳纶废纤维梳理，双层梳梳理间位芳纶废纤维原料；
(3)预漂白，将梳理好的间位芳纶废纤维原料放置到稳定剂DELINOL 9258中，间位芳纶废纤维原料与稳定剂DELINOL 9258比例为1：5～1:20，PH值为6～8,温度为45℃～60℃，时间1h～2h；
(4)初漂白，将步骤(3)得到的间位芳纶废纤维放置到初漂白液中，初漂白液由亚氯酸钠和水组成，调节PH值为3～4，温度为45℃～80℃，时间0.5h～1h；
(5)氧化漂白，将步骤(4)得到的间位芳纶废纤维放置到漂白液中，漂白液由以下质量百分比成分组成：0.15％～0.8％双氧水、0.05％～0.25％稳定剂DELINOL 9258、0.05％～0.25％稳定剂LAVATEX 9188和水，PH值为9～13,温度为75℃～85℃，时间0.5h～1h；
(6)中和，将步骤(4)中的间位芳纶废纤维置于甲酸水溶液中，其质量比为1:5，时间为时间0.5h～1h；
(7)水洗，将中和后的间位芳纶废纤维置于循环水流中清洗，PH值为6～8，温度为50℃～70℃，时间1h～2h；
(8)脱水干燥，将水洗后的间位芳纶废纤维风干，风干后的间位芳纶废纤维置于纤维烘干机内烘干处理；
(9)再梳理，将水洗后的间位芳纶废纤维通过双层梳进行梳理。
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CN102605501A (zh) * 2012-03-28 2012-07-25 东嘉麻棉(常州)有限公司 亚麻混纺制造工艺
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