CN110106626A - 复合水刺布及其生产设备 - Google Patents

复合水刺布及其生产设备 Download PDF

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CN110106626A
CN110106626A CN201910267756.5A CN201910267756A CN110106626A CN 110106626 A CN110106626 A CN 110106626A CN 201910267756 A CN201910267756 A CN 201910267756A CN 110106626 A CN110106626 A CN 110106626A
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laced fabric
spun
composite spun
fiber
surface layer
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张磊
张义平
陈德军
张学乾
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Abstract

本发明公开了一种一种复合水刺布及其生产设备，其中，该复合水刺布包括经水刺法工艺缠结复合在一起的底层和面层，其中，所述底层由长度介于38mm‑60mm的合成纤维经第一梳棉机梳理铺网后形成；所述面层由长度介于5mm‑60mm的天然纤维经第二梳棉机梳理铺网后形成。该复合水刺布在拉伸性能、柔软性及质地上均较常规水刺布有较大提升，并且制造成本低。

Description

复合水刺布及其生产设备
技术领域
本发明涉及一种复合无纺布，特别是一种棉纤复合水刺布，该水刺布是通过水刺(spun lace)法使天然纤维和合成纤维相互缠结形成。本发明还涉及用于制造该复合水刺布的设备。
背景技术
目前卫生用品市场纯棉无纺布非常受欢迎，主要因为消费者收入提高，消费能力提高。纯棉织物因为其良好的亲肤性、舒适性深受广大消费者喜爱，因此纯棉无纺布应运而生。但是纯棉价格高，而且干爽度不够，用户体验不够完美，而传统水刺布在亲肤方面都没有纯棉水刺布无纺布效果好。
为此，各大厂家都在解决该问题。中国专利CN2013103116078提供了《一种含棉无纺布及其制造方法》，其通过对化纤无纺布表面铺设纯棉纤维层，通过水刺工艺，使棉纤维贯穿无纺布，从而获得纯棉水刺布的手感，降低成本。
但是，该技术方案仍然存在不足，其需要成品无纺布，所以成本仍然偏高，浪费能源。如何降低成本，造福广大消费者，仍有重大意义。
发明内容
鉴于现有技术存在的上述问题，本发明一个方面的目的在于提供含天然纤维的复合水刺布，该复合水刺布在拉伸性能、柔软性及质地上均较常规水刺布有较大提升，并且制造成本低。
为了实现上述目的，本发明提供的一种复合水刺布，包括经水刺法工艺缠结复合在一起的底层和面层，其中，所述底层由长度介于38mm-60mm的合成纤维经第一梳棉机梳理铺网后形成；所述面层由长度介于5mm-60mm的天然纤维经第二梳棉机梳理铺网后形成。
作为优选，所述合成纤维为聚酯纤维、粘胶纤维或两者的复合纤维。
作为优选，所述天然纤维为棉纤维、蚕丝纤维或羊毛纤维。
作为优选，所述面层的单位面积重量为5～30g/m2。
作为优选，所述底层的单位面积重量为5～30g/m2。
作为优选，所述天然纤维和/或所述合成纤维的细度介于1.2D～12D。
与现有技术比较，本发明可以显著降低成本，扩大纯棉无纺布市场占有率，造福广大消费者。同时本发明提供的复合水刺布，含有棉纤维或其他合成纤维，能够获得优异的亲水性，使得该复合水刺布在作为口罩、纸尿裤等一次性卫生用品构成材料时，可以获得更为干爽的体验。
应当理解，前面的一般描述和以下详细描述都仅是示例性和说明性的，而不是用于限制本公开。
本申请文件提供本公开中描述的技术的各种实现或示例的概述，并不是所公开技术的全部范围或所有特征的全面公开。
附图说明
图1为本发明的复合水刺布的结构示意图。
图2为生产本发明的复合水刺布的设备结构示意图。
主要附图标记：
1…复合水刺布；2…底层；3…面层；10…开包机；11…第一开包机；12…
第二开包机；20…混棉箱；21…第一混棉箱；22…第二混棉箱；30…梳棉机；31…第一梳棉机；32…第二梳棉机；40…成网装置；50…水刺机；60…
烘干机；70……卷绕机。
具体实施方式
以下结合附图对本发明的结构做进一步详细的说明。
为了使得本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，还可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
为了保持本公开实施例的以下说明清楚且简明，本公开省略了已知功能和已知部件的详细说明。
本发明提供的复合水刺布是由水刺法将短纤维状的棉纤维构成的上层和合成纤维构成的下层相互缠结，从而形成无纺布。具体地，如图1和图2所示，本发明提供的一种复合水刺布，包括经水刺法工艺缠结复合在一起的底层和面层，其中，所述底层由长度介于38mm-60mm的合成纤维经第一梳棉机31梳理铺网后形成；所述面层由长度介于5mm-60mm的天然纤维经第二梳棉机32梳理铺网后形成。具体地，在一些实施例中，所述合成纤维为聚酯纤维、粘胶纤维或两者的复合纤维。所述天然纤维为棉纤维、蚕丝纤维或羊毛纤维，优选为棉纤维。
在实际生产中，一般地，所述面层的单位面积重量为5～30g/m2；所述底层的单位面积重量为5～30g/m2。同时可根据需要对纤维细度做合理选择。优选地，所述天然纤维和/或所述合成纤维的细度介于1.2D～12D(D是旦尼尔，指9000米长的纤维束的克数，1tex＝10dtex＝9D)。
图2示出了生产本发明的复合水刺布的设备结构示意图，如图2所示，本发明提供的复合水刺布的生产设备，包括依序设置的开包机10、混棉箱20、梳理机30、成网装置40、水刺机50、烘干机60和卷绕机70，其中，所述开包机10包括对合成纤维进行开包处理的第一开包机11，以及与所述第一开包机11并列设置用于对天然纤维进行开包处理的第二开包机12,；所述混棉箱20包括对所述合成纤维进行混合预处理的第一混棉箱21，以及与所述第一混棉箱21并列设置用于对天然纤维进行混合预处理的第二混棉箱22；所述梳理机30包括对经过预处理的合成纤维进行梳理的第一梳棉机31，以及与所述第一梳棉机31并列设置用于对所述天然纤维进行梳理的第二梳棉机 32；所述成网装置40设置于所述梳棉机30的下料端，用于对经过梳理的合成纤维和所述天然纤维进行铺网操作，以使所述天然纤维构成的面层3层叠在合成纤维构成的底层2之上；所述水刺机50位于所述成网装置40的下料端，用于利用高压产生的多股微细水射流喷射层叠的底层2和面层3，合成纤维以及天然纤维在不同方向高速水射流穿插的水力作用下，相互缠结，从而将所述的面层3固定在底层2上；进一步地，经缠绕固定的水刺布可以通过烘干机60进行烘干，并经过卷绕机70卷绕成布卷。
在利用水刺机50缠结的步骤中，高压水流喷射器将较细的多股水流喷射至所供给输送的面层3与底层2。此外，喷射高压水流时，若由于高压水流的能量，重叠的面层3与底层2相互错离或两者剥离，则缠结处理缺乏稳定性，另外无法获得具有优异的物理性质均一的复合水刺布。因此，优选在喷射水流之前，可考虑在一浸水装置中，将上述重叠的面层3与底层2浸泡于水中。再者，优选在水刺机50处理完成后，再增加减压抽吸设备来抽吸去除水分，以提高下一步骤中烘干机60的干燥效率。
另外，在水刺缠结步骤中，可将重叠的面层3和底层2置于一支撑用筛网上进行水刺工序，筛网并无特别限定，但为了易于进行处理水的排出处理，筛的孔径通常为20～200目。再进一步具体地，在水刺步骤中，上述喷射水流的压力为10～300kg/cm3，优选为60～150kg/cm3。由于筛网的抗弯曲性较低，故而即便压力较低，仍能够缠结网，但若压力未达10kg/cm3，则缠结效果不充分。相反，若超过300kg/cm3，则生成高压水流的成本增大，而且难以进行操作。进行一次以上的喷射，优选为通过三次的喷射而进行缠结。亦即，能够分开使用以缠结为主要目的的高压及大水量的喷射、用于表面精加工的低压及小水量的喷射、以及两者中间的中压喷射。高压流体的形状并无特别限定，但就能量效率方面而言，柱状流较佳。柱状流的剖面形状由喷嘴的剖面形状或喷嘴的喷出口的内部构造决定，可根据网的材质、目的、用途等自由地选择。高压水流喷射的处理速度为1～150m/min，优选为20～100m/min。若处理速度未达1m/min，则生产率低，另外若超过150m/min，则缠结效果不充分。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换以及改进等，均应包含在本发明的保护范围之内。

Claims (6)

1.一种复合水刺布，其特征在于，包括经水刺法工艺缠结复合在一起的底层和面层，其中，所述底层由长度介于38mm-60mm的合成纤维经第一梳棉机梳理铺网后形成；所述面层由长度介于5mm-60mm的天然纤维经第二梳棉机梳理铺网后形成。
2.如权利要求1所述的复合水刺布，其特征在于，所述合成纤维为聚酯纤维、粘胶纤维或两者的复合纤维。
3.如权利要求1所述的复合水刺布，其特征在于，所述天然纤维为棉纤维、蚕丝纤维或羊毛纤维。
4.如权利要求1所述的复合水刺布，其特征在于，所述面层的单位面积重量为5～30g/m2。
5.如权利要求1所述的复合水刺布，其特征在于，所述底层的单位面积重量为5～30g/m2。
6.如权利要求1所述的复合水刺布，其特征在于，所述天然纤维和/或所述合成纤维的细度介于1.2D～12D。
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