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CN111058188B - 天然纤维基无纺布 - Google Patents

天然纤维基无纺布 Download PDF

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CN111058188B
CN111058188B CN201911349269.XA CN201911349269A CN111058188B CN 111058188 B CN111058188 B CN 111058188B CN 201911349269 A CN201911349269 A CN 201911349269A CN 111058188 B CN111058188 B CN 111058188B
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parts
fibers
fiber net
zno nanowire
cotton fiber
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CN111058188A (zh
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王伟
吴晓彪
林一速
祝二斌
苏文庭
林东山
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Fujian Hengan Household Life Article Co Ltd
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Fujian Hengan Hygiene Material Co ltd
Hengan Fujian Holding Group Co Ltd
Fujian Hengan Household Life Article Co Ltd
Hengan China Hygiene Products Co Ltd
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Abstract

本发明公开一种天然纤维基无纺布的制备方法。包括下述步骤：制备复合面层无纺布的步骤包括：11)制备上层竹棉纤网层，其中，上层竹棉纤网层由竹纤维、纯棉纤维、ES纤维组成；12)制备下层麻棉纤网层，下层麻棉纤网层由苎麻纤维、纯棉纤维、ES纤维制成。本发明的无纺布采用了大量的天然纤维，对皮肤的刺激大大的减小，且采用麻棉和竹棉相配合，减少纯棉无纺布吸湿性高，潮感重，干爽性差、透气性不足等问题。

Description

天然纤维基无纺布
技术领域
本发明涉及一种天然纤维基无纺布。
背景技术
现有技术面层材料多采用化工原料无纺布或纯棉无纺布构成。目前面层主要采用普通热风、纺粘、热轧等无纺布经过油剂处理，可以实现干爽性好，吸收快，但仍存在皮肤刺激的风险。目前消费者倾向于天然材料面层的无纺布，而纯棉无纺布存在吸湿性高，潮感重，干爽性差、透气性不足问题。
发明内容
为克服上述缺陷，本发明的目的在于提供一种天然纤维基无纺布。
为达到上述目的，本发明的天然纤维基无纺布的制备方法，包括下述步骤：
制备复合面层无纺布的步骤包括：
11)制备上层竹棉纤网层，其中，上层竹棉纤网层由竹纤维、纯棉纤维、ES纤维组成；
12)制备下层麻棉纤网层，下层麻棉纤网层由苎麻纤维、纯棉纤维、ES纤维制成。
进一步的，所述的上层竹棉纤网层做通过凉感剂进行凉感处理。
进一步的所述的上层竹棉纤网层与麻棉纤网层通过低熔点ES纤维热轧节点复合而成。
进一步的所述的苎麻纤维经过下述改性处理：
氧化酶处理，纤维素端羧基被氧化为醛基，枝接超支化氨基端聚酰胺，亲水性氨基硅氧烷，硅烷偶联剂(如γ-氨丙基三乙氧基硅烷)，使麻纤维柔化与卷曲度改性。
进一步的，所述的苎麻纤维、纯棉纤维、ES纤维的重量份比例为：30：60：10。
进一步的，还包括用功能性护理整理剂进行整理的步骤。
进一步的，所述的功能性护理整理剂的制备方法为：
71)制备ZnO纳米线分散液
在含有甘油1-2份、羧甲基纤维素0.2-1份、聚丙烯酸钠1-2份、聚乙烯吡咯烷酮3-5份的水溶液分散体系中加入单烷氧基型钛酸酯偶联亲水改性剂1-2份，搅拌均匀后，缓慢加入10-30份的表面处理后的ZnO纳米线，制备成亲水型ZnO纳米线分散液；
72)制备香精自包裹微胶囊
将10-20份香精添加至含有C12-15链烷醇聚醚-12 1-5份数、聚乙烯醇1-3份数、羟甲基纤维素1-3份、羧甲基纤维素钠0.1-0.5份、果胶0.5-2份、聚乙烯吡咯烷酮1-2份、聚丙烯酸钠体系1-2份中形成香精自包裹微胶囊；
73)将制备香精自包裹微胶囊投入到制备ZnO纳米线分散液中充分混合。
74)将混合后的溶液喷涂在下层麻棉纤网层上。
进一步的，ZnO纳米线表面处理方法为：
81)将ZnO纳米线分散至浓度为0.5％氨基酸水溶液中浸泡1-5分钟，氨基酸为pI大于>7的组氨酸(pI＝7.59)或赖氨酸(pI＝9.74)或二者的组合物；由于ZnO在水溶液中由于羟基作用而带负电荷，在pH小于等电点pI时氨基酸带正电荷，氨基酸吸附于ZnO纳米线部分表面。
82)将浸泡后ZnO纳米线取出干燥；
83)利用浓度0.1-1％的HF对干燥后ZnO纳米线进行刻蚀，以形成多个缺陷点；
84)将刻蚀后的后ZnO纳米线再次分散于pH大于pI的氢氧化钠解吸。
本发明的无纺布采用了大量的天然纤维，对皮肤的刺激大大的减小，且采用麻棉和竹棉相配合，减少纯棉无纺布吸湿性高，潮感重，干爽性差、透气性不足等问题。
具体实施方式
实施例1
本实施例中的天然纤维基无纺布的制备方法：
1)制备上层竹棉纤网层，其中，包括竹纤维,纯棉纤维，ES纤维组成，10gsm-15gsm；
采用水刺工艺制备，在过程中(凉感矿物质微乳悬浮液)做凉感处理，增强面层表层的凉感。凉感悬浮液采用珍珠粉、玉石粉等凉感物质，稳定体系包括柠檬酸、分散剂(甲基纤维素/羧甲基纤维素等)、聚丙烯酸酯交联剂、抗氧化剂。
2)制备下层麻棉纤网层，苎麻纤维：纯棉纤维：ES纤维(协同改善柔软与卷曲性)＝30：60:10组成10gsm-25gsm，水刺工艺。
下层麻棉纤网层具有导湿，透气，下层快速扩散，兼具导流层作用。
其中，苎麻纤维应做改性处理,,采用生物酶(纤维素酶与果胶酶)去除果胶及减小结晶度,生物酶缓冲溶液采取弱碱性稳定体系,磷酸钠/氢二钠或磷酸钠/氢二钾,柠檬酸/EDTA螯合金属离子稳定酶活性；之后进一步末端纤维素酶处理(苎麻表面抛光)。
实施例2
本实施例中的天然纤维基无纺布的制备方法：
1)制备上层竹棉纤网层，其中，包括竹纤维,纯棉纤维，ES纤维组成，10gsm-15gsm；
采用水刺工艺制备，在过程中(凉感矿物质微乳悬浮液)做凉感处理，增强面层表层的凉感。凉感悬浮液采用珍珠粉、玉石粉等凉感物质，稳定体系包括柠檬酸、分散剂(甲基纤维素/羧甲基纤维素等)、聚丙烯酸酯交联剂、抗氧化剂。
2)制备下层麻棉纤网层，苎麻纤维：纯棉纤维：ES纤维(协同改善柔软与卷曲性)＝30：60：10组成10gsm-25gsm，水刺工艺。
下层麻棉纤网层具有导湿，透气，下层快速扩散，兼具导流层作用。
在制备过程中，对下层麻棉纤网层进行功能性液体进行喷涂处理，其中功能性液体是将制备的功能性微胶囊加入ZnO纳米线分散液中；将混合后的溶液喷涂在下层麻棉纤网层。功能性液体的制作方法为：
1)制备ZnO纳米线分散液
在含有甘油1-2份、羧甲基纤维素0.2-1份、聚丙烯酸钠1-2份、聚乙烯吡咯烷酮3-5份的水溶液分散体系中加入单烷氧基型钛酸酯偶联亲水改性剂1-2份，搅拌均匀后，缓慢加入10-30份的表面处理后的ZnO纳米线，制备成亲水型ZnO纳米线分散液；
2)制备香精自包裹微胶囊
将10-20份香精添加至含有C12-15链烷醇聚醚-12 1-5份数、聚乙烯醇1-3份数、羟甲基纤维素1-3份、羧甲基纤维素钠0.1-0.5份、果胶0.5-2份、聚乙烯吡咯烷酮1-2份、聚丙烯酸钠体系1-2份中形成香精自包裹微胶囊；
3)将制备香精自包裹微胶囊投入到制备ZnO纳米线分散液中充分混合。
4)通过喷涂的形式将纳米线溶液喷涂在上层纤维网层的下表面或下层纤网层的上表面。
所述的ZnO纳米线的处理方法为：
11)将ZnO纳米线分散至浓度为0.5％氨基酸水溶液中浸泡1-5分钟，氨基酸为pI大于>7的组氨酸(pI＝7.59)或赖氨酸(pI＝9.74)或二者的组合物；由于ZnO在水溶液中由于羟基作用而带负电荷，在pH小于等电点pI时氨基酸带正电荷，氨基酸吸附于ZnO纳米线部分表面。
12)将浸泡后ZnO纳米线取出干燥；
13)利用浓度0.1-1％的HF对干燥后ZnO纳米线进行刻蚀，以形成多个缺陷点；
14)将刻蚀后的后ZnO纳米线再次分散于pH大于pI的氢氧化钠解吸。
上述的香精可以为普通香精，也可以其它功能香精，如：香茅油、茶树油、柠檬桉叶油、艾叶油、薰衣草油、薄荷油中的一种或几种的组合。

Claims (1)

1.一种天然纤维基无纺布的制备方法，其特征在于，所述的方法包括制备复合面层无纺布的步骤：
1）制备上层竹棉纤网层，其中，上层竹棉纤网层由竹纤维、纯棉纤维、ES纤维组成；
2）制备下层麻棉纤网层，下层麻棉纤网层由苎麻纤维、纯棉纤维、ES纤维制成；
还包括用功能性护理整理剂进行整理的步骤；
所述的功能性护理整理剂的整理步骤为：
1）制备ZnO纳米线分散液
在含有甘油1-2份、羧甲基纤维素0.2-1份、聚丙烯酸钠1-2份、聚乙烯吡咯烷酮3-5份的水溶液分散体系中加入单烷氧基型钛酸酯偶联亲水改性剂1-2份，搅拌均匀后，缓慢加入10-30份的表面处理后的ZnO纳米线，制备成亲水型ZnO纳米线分散液；
2）制备香精自包裹微胶囊
将10-20份香精添加至含有C12-15链烷醇聚醚-12 1-5份数、聚乙烯醇1-3份数、羟甲基纤维素1-3份、羧甲基纤维素钠0.1-0.5份、果胶0.5-2份、聚乙烯吡咯烷酮1-2份、聚丙烯酸钠1-2份体系中形成香精自包裹微胶囊；
3）将制备的香精自包裹微胶囊投入到制备好的ZnO纳米线分散液中充分混合；
4）将混合后的溶液喷涂在下层麻棉纤网层上；
ZnO纳米线表面处理方法为：
1）将ZnO纳米线分散至浓度为0.5%氨基酸水溶液中浸泡1-5分钟，氨基酸为pI大于7的组氨酸（pI=7.59)或赖氨酸（pI=9.74）或二者的组合物；由于ZnO在水溶液中由于羟基作用而带负电荷，在pH小于等电点pI时氨基酸带正电荷，氨基酸吸附于ZnO纳米线部分表面；
2）将浸泡后ZnO纳米线取出干燥；
3）利用浓度0.1-1%的HF对干燥后ZnO纳米线进行刻蚀，以形成多个缺陷点；
4）将刻蚀后的后ZnO纳米线再次分散于pH大于pI的氢氧化钠解吸。
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