CN110241621A - 一种用莱赛尔纤维制备的无纺布及其制备方法 - Google Patents
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Abstract
本发明涉及一种用莱赛尔纤维制备的无纺布及其制备方法,以莱赛尔纤维为原料,采用气流成网机制取纤维网,然后将纤维网在胶液槽中进行浸胶,最后将纤维网在烘燥机中进行烘燥,得到厚度为100~300μm的莱赛尔纤维无纺布。本发明以莱赛尔纤维为原料,采用化学粘合工艺将其制备为无纺布;该工艺具有制备简单、清洁环保等优点,对莱赛尔纤维是适用的,具有较好的推广价值。
Description
技术领域
本发明属于无纺布技术领域,具体涉及一种用莱赛尔纤维制备的无纺布及其制备方法。
背景技术
目前,很多纤维都被制备为无纺布,如:聚丙烯纤维、棉纤维、麻纤维等。无纺布具有很多优点,其具有生产工艺流程短、生产速度快、成本低、用途广等特点,其广泛应用于医疗卫生、服装辅料、家庭装修等行业。无纺布制备的方法较多,如:针刺加固工艺、水刺加固工艺、热粘合工艺、化学粘合工艺、纺丝成网工艺和熔喷工艺等。
无纺布具有很多优点,其受到广泛的研究,特别是各种不同的纤维原料被应用制备为无纺布,赋予无纺布更多的性能特点,从而其在越来越多的领域受到关注,如:中国发明专利申请号201620800922.5公布了一种防霉抗菌无纺布及设有其的地板、壁纸、进门垫结构,该专利的无纺布以涤纶纤维、丙纶纤维、芳纶纤维、聚酰胺纤维制成;中国发明专利申请号201811078532.1公布了一种管式膜用聚酰胺无纺布的制备方法,该无纺布以聚酰亚胺和涤纶纤维组成。文献调研发现,很多纤维都成功被应用于制备为无纺布,但用莱赛尔纤维为原料制备为无纺布的研究鲜有报道。莱赛尔纤维是一种新型纤维,其具有优良的强力性能、棉纤维的舒适性、粘胶纤维的悬垂性、色彩鲜艳性、真丝的柔软手感和优雅光泽等优点。因此,将莱赛尔纤维制备为无纺布具有重要意义,用莱赛尔纤维制备得到的无纺布具有广阔的应用前景。
发明内容
本发明的目的是克服以往技术的不足,提供一种用莱赛尔纤维制备的无纺布及其制备方法。
本发明的目的在于提供一种用莱赛尔纤维制备的无纺布,该无纺布以莱赛尔纤维为原料,通过气流法成网、纤维网的浸胶、烘燥等工艺制得。
本发明的另一个目的在于提供上述所述一种用莱赛尔纤维制备的无纺布的制备方法,所述方法包含如下步骤:
(1)纤维成网:莱赛尔纤维采用气流成网机制取网纤,将莱赛尔纤维喂入高速回转的刺辊,进一步梳理成单纤维;在刺辊的离心力和气流联合作用下,纤维从锯齿上脱落,凝聚在成网帘上,形成纤维网,以8~12m/min的速度向前传输;
(2)纤维网的浸胶:将步骤(1)制备的纤维网在胶液槽中进行浸胶,胶液选用固含量为10~20%的聚乙烯醇水溶液;
(3)纤维网的烘燥:采用穿透式烘燥方式对步骤(2)处理的纤维网在烘燥机中进行烘燥,得到厚度为100~300μm的莱赛尔纤维无纺布。
优选地,所述步骤(1)中莱赛尔纤维流密度为:3~4g/m3。
优选地,所述步骤(2)中浸胶时间为30~60min。
优选地,所述步骤(3)中烘燥分三个阶段,第一阶段为预烘,预烘温度为40~60℃,预烘时间为30~60min;第二阶段烘燥温度为60~90℃,烘燥时间为30~60min;第三阶段烘燥温度为120~140℃,烘燥时间为30~60min。
本发明具有如下显著特点:
(1)本发明以莱赛尔纤维为原料,采用化学粘合工艺将其制备为无纺布;该工艺具有制备简单、清洁环保等优点,对莱赛尔纤维是适用的。
(2)以莱赛尔纤维制备的无纺布具有莱赛尔纤维的诸多优点,如:优良的强力性能、棉纤维的舒适性、粘胶纤维的悬垂性和色彩鲜艳性、真丝的柔软手感和优雅光泽等。
(3)本发明拓展了莱赛尔纤维的应用领域,以其制备的无纺布必将得到更进一步的发展与推广。
具体实施方式
以下所述实施例详细说明了本发明。
实施例1
在本实施例中,一种用莱赛尔纤维制备的无纺布采用如下方法制备而成,包括如下步骤:
(1)纤维成网:莱赛尔纤维采用气流成网机制取网纤,将莱赛尔纤维喂入高速回转的刺辊,进一步梳理成单纤维;在刺辊的离心力和气流联合作用下,纤维从锯齿上脱落,凝聚在成网帘上,形成纤维网,以10m/min的速度向前传输,莱赛尔纤维流密度为:3.4g/m3。
(2)纤维网的浸渍:将步骤(1)制备的纤维网在胶液槽中进行浸胶,浸胶时间为45min,胶液选用固含量为15%的聚乙烯醇水溶液。
(3)纤维网的烘燥:采用穿透式烘燥方式对步骤(2)处理的纤维网在烘燥机中进行烘燥,烘燥分三个阶段,第一阶段为预烘,预烘温度为50℃,预烘时间为45min;第二阶段烘燥温度为75℃,烘燥时间为45min;第三阶段烘燥温度为130℃,烘燥时间为45min;最后,得到厚度为180~220μm的莱赛尔纤维无纺布。
实施例2
在本实施例中,一种用莱赛尔纤维制备的无纺布采用如下方法制备而成,包括如下步骤:
(1)纤维成网:莱赛尔纤维采用气流成网机制取网纤,将莱赛尔纤维喂入高速回转的刺辊,进一步梳理成单纤维;在刺辊的离心力和气流联合作用下,纤维从锯齿上脱落,凝聚在成网帘上,形成纤维网,以10m/min的速度向前传输,莱赛尔纤维流密度为:3.1g/m3;
(2)纤维网的浸渍:将步骤(1)制备的纤维网在胶液槽中进行浸胶,浸胶时间为30min,胶液选用固含量为10%的聚乙烯醇水溶液;
(3)纤维网的烘燥:采用穿透式烘燥方式对步骤(2)处理的纤维网在烘燥机中进行烘燥,烘燥分三个阶段,第一阶段为预烘,预烘温度为40℃,预烘时间为30min;第二阶段烘燥温度为60℃,烘燥时间为30min;第三阶段烘燥温度为120℃,烘燥时间为30min;最后,得到厚度为170~210μm的莱赛尔纤维无纺布。
实施例3
在本实施例中,一种用莱赛尔纤维制备的无纺布采用如下方法制备而成,包括如下步骤:
(1)纤维成网:莱赛尔纤维采用气流成网机制取网纤,将莱赛尔纤维喂入高速回转的刺辊,进一步梳理成单纤维;在刺辊的离心力和气流联合作用下,纤维从锯齿上脱落,凝聚在成网帘上,形成纤维网,以12m/min的速度向前传输,莱赛尔纤维流密度为:3.8g/m3;
(2)纤维网的浸渍:将步骤(1)制备的纤维网在胶液槽中进行浸胶,浸胶时间为60min,胶液选用固含量为20%的聚乙烯醇水溶液;
(3)纤维网的烘燥:采用穿透式烘燥方式对步骤(2)处理的纤维网在烘燥机中进行烘燥,烘燥分三个阶段,第一阶段为预烘,预烘温度为60℃,预烘时间为60min;第二阶段烘燥温度为90℃,烘燥时间为60min;第三阶段烘燥温度为140℃,烘燥时间为60min;最后,得到厚度为190~260μm的莱赛尔纤维无纺布。
Claims (5)
1.一种用莱赛尔纤维制备的无纺布的制备方法,其特征在于,所述制备方法为:
(1)纤维成网:莱赛尔纤维采用气流成网机制取网纤,将莱赛尔纤维喂入高速回转的刺辊,梳理成单纤维;在刺辊的离心力和气流联合作用下,纤维从锯齿上脱落,凝聚在成网帘上,形成纤维网,以8~12m/min的速度向前传输;
(2)纤维网的浸胶:将步骤(1)制备的纤维网在胶液槽中进行浸胶,胶液选用固含量为10~20%的聚乙烯醇水溶液;
(3)纤维网的烘燥:采用穿透式烘燥方式对步骤(2)处理的纤维网在烘燥机中进行烘燥,得到厚度为100~300μm的莱赛尔纤维无纺布。
2.根据权利要求1所述的一种用莱赛尔纤维制备的无纺布的制备方法,其特征在于:所述步骤(1)中莱赛尔纤维流密度为:3~4g/m3。
3.根据权利要求1所述的一种用莱赛尔纤维制备的无纺布的制备方法,其特征在于:所述步骤(2)中浸胶时间为30~60min。
4.根据权利要求1所述的一种用莱赛尔纤维制备的无纺布的制备方法,其特征在于:所述步骤(3)中烘燥分三个阶段,第一阶段为预烘,预烘温度为40~60℃,预烘时间为30~60min;第二阶段烘燥温度为60~90℃,烘燥时间为30~60min;第三阶段烘燥温度为120~140℃,烘燥时间为30~60min。
5.一种用莱赛尔纤维制备的无纺布,其特征在于,采用权利要求1-4中任一项所述的一种用莱赛尔纤维制备的无纺布的制备方法制备而成。
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CN115354442B (zh) * | 2022-08-09 | 2023-10-20 | 肥城泰西无纺材料有限公司 | 一种莱赛尔纤维絮片及其制备方法和应用 |
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