CN113186726A - 抗菌型竹炭纤维飞织鞋面 - Google Patents

抗菌型竹炭纤维飞织鞋面 Download PDF

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CN113186726A
CN113186726A CN202110519546.8A CN202110519546A CN113186726A CN 113186726 A CN113186726 A CN 113186726A CN 202110519546 A CN202110519546 A CN 202110519546A CN 113186726 A CN113186726 A CN 113186726A
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bamboo charcoal
nano silver
charcoal fiber
fiber
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CN113186726B (zh
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陈楷文
陈少伟
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Fujian Yonghua Textile Co ltd
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Abstract

本发明公开了抗菌型竹炭纤维飞织鞋面，纤维包括芯部纳米银竹炭纤维及包覆在芯部纳米银竹炭纤维外周的TPU表层，本发明中改进编织鞋面纤维的结构，以上述组分的纳米银竹炭分散液与粘胶纤维浆粕纺丝形成竹炭纤维，纳米银直接一体成型嵌在竹炭纤维中，并在外周涂覆TPU表层以再度提升纳米银的稳定性，防止纳米银颗粒脱落，此外TPU表层为超临界发泡成型，表层内含多个孔隙道，在行走过程中，编织成型的鞋面受到挤压，TPU表层内空隙道不断受压及复原，使鞋面内气体通过孔隙道快速频繁与芯部的纳米银竹炭纤维接触，以纳米银对其进行杀菌，该结构下的鞋面具有纳米银颗粒稳定不脱落，杀菌效果好的优点。

Description

抗菌型竹炭纤维飞织鞋面
技术领域
本发明涉及鞋类材质技术领域，具体涉及抗菌型竹炭纤维飞织鞋面。
背景技术
鞋类为生活必需品，其种类众多，在长期行走的过程中，足部易产生汗液，进而滋生细菌、真菌等，导致臭味或脚气等出现，目前而言，除了保持卫生，时常刷洗外，并无其他有效的消灭上述现象的方案出现，但为了减轻或部分消除上述现象，市面上出现杀杀菌型鞋面，如鞋面为多层结构，底层及顶层之间为杀菌层，该结构复杂，不易成型，且较厚不易透气，或在以竹炭纤维编织鞋面，以竹炭纤维的特性进行杀菌，但杀菌能力不能满足需求，或如申请号为CN2007100276721的专利中公开一种竹炭纤维，其以纳米银与粘胶液等纺丝成型纤维，继而可编织成鞋面，但该结构的缺点在于纳米银在纤维上的稳定性依然不够，存在脱落的现象，抗菌持久性差，需改进。
发明内容
为解决上述至少一个技术缺陷，本发明提供了如下技术方案：
本申请文件公开抗菌型竹炭纤维飞织鞋面，所述纤维包括芯部纳米银竹炭纤维及包覆在芯部纳米银竹炭纤维外周的TPU表层，纳米银竹炭纤维为熟成后的粘胶纤维浆粕与纳米银竹炭分散液压送至纺丝机纺丝成型，TPU表层为超临界发泡后成型，其中纳米银竹炭分散液组分包括纳米银5-8％、竹炭粉28-32％、平平加1-3％、EL-40为3-4％、OP-10为1-1.5％，三乙醇胺3-4％、乙二醇8-10％，余量为去离子水。
本发明中改进编织鞋面纤维的结构，以上述组分的纳米银竹炭分散液与粘胶纤维浆粕纺丝形成竹炭纤维，纳米银直接一体成型嵌在竹炭纤维中，并在外周涂覆TPU表层以再度提升纳米银的稳定性，防止纳米银颗粒脱落，此外TPU表层为超临界发泡成型，表层内含多个孔隙道，在行走过程中，编织成型的鞋面受到挤压，TPU表层内空隙道不断受压及复原，使鞋面内气体通过孔隙道快速频繁与芯部的纳米银竹炭纤维接触，以纳米银对其进行杀菌，该结构下的鞋面具有纳米银颗粒稳定不脱落，杀菌效果好的优点。
进一步，TPU表层包括热塑性聚氨酯90-93％、抗氧化及抗紫外剂0.5-0.7％、阻燃剂0.2-0.4％、填充剂1.5-2.1％、润滑剂2-4％，添加抗氧化剂、抗紫外剂、阻燃剂等提高性能，如抗氧化能力、抗紫外线能力、阻燃性能等，加入填充剂提高物理性能，润滑剂使物料混合均匀。
进一步，TPU表层厚度为0.8-1.2mm。
进一步，将TPU材料加入料斗中，挤出机挤出以涂覆在牵引作用下从挤出机机头口型经过的纳米银竹炭纤维上，冷却形成预成型体，之后将预成型体进行超临界发泡形成编织鞋面的纤维。
进一步，超临界发泡参数：发泡压力为40-44MPa，温度50-55℃，时间2-3h，快速释压时间为10-15s，发泡压力在0.1-0.2MPa，发泡温度在150-200℃。
该超临界发泡参数下，可使TPU表层的孔隙增多，且在检测下，该参数下成型的纤维抗菌持久，经放大镜观察发现，表层内的孔隙约60％以上与芯部纤维连通，且芯部纤维上纳米银颗粒稳定性高，不易脱落。
进一步，超临界发泡参数：发泡压力为42-43MPa，温度50-52℃，时间2.5h，快速释压时间为10-15s，发泡压力在0.1-0.2MPa，发泡温度在180-200℃，该参数下约70％以上的孔隙与芯部纤维连通。
进一步，纳米银竹炭分散液组分包括纳米银5％、竹炭粉30％、平平加2％、EL-40为3％、OP-10为1.5％，三乙醇胺3.5％、乙二醇9％，余量为去离子水。
与现有技术相比，本发明的有益效果：
1、本发明改进鞋面编织用纤维的结构及组成，引入超临界发泡的TPU表层，一方面提高纳米银颗粒的稳定性，另一方面通过孔隙道涨缩提高换气频率，使鞋面内气体频繁与芯部内接触，杀菌持久。
具体实施方式
下面结合具体实施例对本发明作进一步说明。
热塑性聚氨酯：热塑性聚氨酯：聚酯型热塑性聚氨酯粒子，以聚酯多元醇、4,4’-二苯基甲烷二异氰酸酯(MDI)和1,4-丁二醇为原料制备，此为常用类型。
实施例1
制备方法如下：
纳米银竹炭分散液组分包括纳米银5％、竹炭粉30％、平平加2％、EL-40为3％、OP-10为1.5％，三乙醇胺3.5％、乙二醇9％，余量为去离子水，混合均匀备用，经研磨机研磨至竹炭粉经不大于0.5μm，纳米银粒径为20-30nm。
将预备好的熟成后的粘胶纤维经过滤后与上述纳米银竹炭分散液混合后压送至纺丝机进行纺丝形成纳米银竹炭纤维，二者压送量依申请号为CN2007100276721的专利中所记载。
编织鞋面纤维的制备：TPU表层包括热塑性聚氨酯90％、抗氧化及抗紫外剂(Cyanox1790、苯甲酸类抗紫外线剂等质量混合)0.5％、阻燃剂(三氧化二锑)0.2％、填充剂(滑石粉)1.5％、润滑剂(聚硅氧烷)2％，将TPU表层各组分混合均匀加入料斗内，干燥并除湿，启动挤出机，将机头预热至190℃，打开牵引，使纳米银竹炭纤维经过机头的口型，TPU组分材料以熔融状的粘流态进入挤出机头，涂覆在纳米银竹炭纤维的外周形成预成型体，此时TPU表层厚度在0.2mm左右。
之后将预成型体放置在高压反应釜中，通入二氧化碳为流体介质，加压升温使流体介质处于超临界状态以溶解至预成型体的TPU表层中，发泡压力为40MPa，温度50-52℃，时间2h，之后快速释压时间为10-12s，将预成型体拿出放置在待发泡的箱体中，发泡压力在0.1-0.12MPa，通入水蒸气，发泡温度在150-155℃，时间为3.5min，此时TPU表层厚度在1.2mm左右，形成编织鞋面的纤维。
将TPU复合线材编织成型鞋面，蒸汽定型。
实施例2
制备方法如下：
纳米银竹炭分散液组分包括纳米银8％、竹炭粉32％、平平加3％、EL-40为4％、OP-10为1.5％，三乙醇胺4％、乙二醇10％，余量为去离子水，混合均匀备用，经研磨机研磨至竹炭粉经不大于0.5μm，纳米银粒径为20-30nm。
将预备好的熟成后的粘胶纤维经过滤后与上述纳米银竹炭分散液混合后压送至纺丝机进行纺丝形成纳米银竹炭纤维，二者压送量依申请号为CN2007100276721的专利中所记载。
编织鞋面纤维的制备：TPU表层包括热塑性聚氨酯93％、抗氧化及抗紫外剂(Cyanox1790、苯甲酸类抗紫外线剂等质量混合)0.7％、阻燃剂(三氧化二锑)0.4％、填充剂(滑石粉)2.1％、润滑剂(聚硅氧烷)4％，将TPU表层各组分混合均匀加入料斗内，干燥并除湿，启动挤出机，将机头预热至190℃，打开牵引，使纳米银竹炭纤维经过机头的口型，TPU组分材料以熔融状的粘流态进入挤出机头，涂覆在纳米银竹炭纤维的外周形成预成型体，此时TPU表层厚度在0.15mm左右。
之后将预成型体放置在高压反应釜中，通入二氧化碳为流体介质，加压升温使流体介质处于超临界状态以溶解至预成型体的TPU表层中，发泡压力为44MPa，温度52-54℃，时间2.5h，之后快速释压时间为12-15s，将预成型体拿出放置在待发泡的箱体中，发泡压力在0.12-0.15MPa，通入水蒸气，发泡温度在155-160℃，时间为3min，此时TPU表层厚度在0.9mm左右，形成编织鞋面的纤维。
将TPU复合线材编织成型鞋面，蒸汽定型。
实施例3
制备方法如下：
纳米银竹炭分散液组分包括纳米银7％、竹炭粉31％、平平加2％、EL-40为3.8％、OP-10为1.2％，三乙醇胺3.8％、乙二醇10％，余量为去离子水，混合均匀备用，经研磨机研磨至竹炭粉经不大于0.5μm，纳米银粒径为20-30nm。
将预备好的熟成后的粘胶纤维经过滤后与上述纳米银竹炭分散液混合后压送至纺丝机进行纺丝形成纳米银竹炭纤维，二者压送量依申请号为CN2007100276721的专利中所记载。
编织鞋面纤维的制备：TPU表层包括热塑性聚氨酯92％、抗氧化及抗紫外剂(Cyanox1790、苯甲酸类抗紫外线剂)0.6％、阻燃剂(三氧化二锑)0.3％、填充剂(滑石粉)1.9％、润滑剂(聚硅氧烷)3％，将TPU表层各组分混合均匀加入料斗内，干燥并除湿，启动挤出机，将机头预热至190℃，打开牵引，使纳米银竹炭纤维经过机头的口型，TPU组分材料以熔融状的粘流态进入挤出机头，涂覆在纳米银竹炭纤维的外周形成预成型体，此时TPU表层厚度在0.2mm左右。
之后将预成型体放置在高压反应釜中，通入二氧化碳为流体介质，加压升温使流体介质处于超临界状态以溶解至预成型体的TPU表层中，发泡压力为42-43MPa，温度50-52℃，时间2h，之后快速释压时间为10-12s，将预成型体拿出放置在待发泡的箱体中，发泡压力在0.1-0.12MPa，通入水蒸气，发泡温度在180-190℃，时间为2.5min，此时TPU表层厚度在1.2mm左右，形成编织鞋面的纤维。
将TPU复合线材编织成型鞋面，蒸汽定型。
对比例1
与实施例3相比，不同之处在于：超临界发泡成型时，参数为发泡压力为38MPa，温度45℃，时间2h，快速释压时间为10-15s，发泡压力在0.1-0.12MPa，发泡温度在130℃，时间30min。
对比例2
以实施例3中纳米银竹炭纤维直接编织成鞋面。
检测
上述鞋面进行不断弯折测试吸附性，发现实施例1-3制备的鞋面的吸附性高于对比例1-2鞋面10％。
直接征集志愿者进行应用检测。
具体而言，征集100名志愿者，分两批，每批人群男女数量相同，男性群体中单个体重差距不超过2公斤，女性群体中单个体重差距不超过2公斤。
进行行走测试，每个人均穿上同样标准的鞋子，在相同环境下每天1.5h内徒步2公里，约为正常上班人员每天所需，持续15天，发现包含实施例1-3制备鞋面的鞋子无异味，包含对比例1制备鞋面的鞋子异味大，包含对比例2制备鞋面的鞋子在前期10天内基本无异味，后期出现异味，经检测对比例2制备的鞋面中纳米银的脱落较多。
以上仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (7)

1.抗菌型竹炭纤维飞织鞋面，其特征在于，所述纤维包括芯部纳米银竹炭纤维及包覆在芯部纳米银竹炭纤维外周的TPU表层，纳米银竹炭纤维为熟成后的粘胶纤维浆粕与纳米银竹炭分散液压送至纺丝机纺丝成型，TPU表层为超临界发泡后成型，其中纳米银竹炭分散液组分包括纳米银5-8％、竹炭粉28-32％、平平加1-3％、EL-40为3-4％、OP-10为1-1.5％，三乙醇胺3-4％、乙二醇8-10％，余量为去离子水。
2.如权利要求1所述的抗菌型竹炭纤维飞织鞋面，其特征在于：TPU表层包括热塑性聚氨酯90-93％、抗氧化及抗紫外剂0.5-0.7％、阻燃剂0.2-0.4％、填充剂1.5-2.1％、润滑剂2-4％。
3.如权利要求2所述的抗菌型竹炭纤维飞织鞋面，其特征在于：TPU表层厚度为0.8-1.2mm。
4.如权利要求2所述的抗菌型竹炭纤维飞织鞋面，其特征在于：将TPU材料加入料斗中，挤出机挤出以涂覆在牵引作用下从挤出机机头口型经过的纳米银竹炭纤维上，冷却形成预成型体，之后将预成型体进行超临界发泡形成编织鞋面的纤维。
5.如权利要求4所述的抗菌型竹炭纤维飞织鞋面，其特征在于：超临界发泡参数：发泡压力为40-44MPa，温度50-55℃，时间2-3h，快速释压时间为10-15s，发泡压力在0.1-0.2MPa，发泡温度在150-200℃。
6.如权利要求5所述的抗菌型竹炭纤维飞织鞋面，其特征在于：超临界发泡参数：发泡压力为42-43MPa，温度50-52℃，时间2.5h，快速释压时间为10-15s，发泡压力在0.1-0.2MPa，发泡温度在180-200℃。
7.如权利要求1所述的抗菌型竹炭纤维飞织鞋面，其特征在于：纳米银竹炭分散液组分包括纳米银5％、竹炭粉30％、平平加2％、EL-40为3％、OP-10为1.5％，三乙醇胺3.5％、乙二醇9％，余量为去离子水。
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