CN114379186A - 易透气排汗的亲肤面料及其制备方法 - Google Patents

易透气排汗的亲肤面料及其制备方法 Download PDF

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CN114379186A
CN114379186A CN202210118273.0A CN202210118273A CN114379186A CN 114379186 A CN114379186 A CN 114379186A CN 202210118273 A CN202210118273 A CN 202210118273A CN 114379186 A CN114379186 A CN 114379186A
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skin
layer
friendly
polyhexamethylene guanidine
fabric
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CN114379186B (zh
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贾右兵
闫韶华
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Zhejiang Aiyimei Clothing Co ltd
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Heze Yuanlinchuan Clothing Co ltd
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    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
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Abstract

本发明公开了一种易透气排汗的亲肤面料及其制备方法，使用一体化工序将抗菌成分和纺织原料结合，采用一步法制备了具有不同亲水‑疏水梯度的易透气排汗的亲肤面料。本发明具有优良透气排汗性能的同时还兼具单向导湿的功能。本发明能够有效避免现有技术中对面料进行后续抗菌处理导致的破坏疏水‑亲水梯度平衡，使面料单向导湿的稳定性得到提升；并且得到的面料具有良好的抗洗涤性，经过多次洗涤后抗菌成分不会流失，仍可发挥良好的抗菌效果。

Description

易透气排汗的亲肤面料及其制备方法
技术领域
本发明涉及纺织品技术领域，尤其涉及一种易透气排汗的亲肤面料及其制备方法。
背景技术
皮肤的排泄功能在维持人体体温平衡的过程中发挥了至关重要的作用。骨骼肌在人体的运动过程中产生的大量热量主要通过排汗从体内散发；高温天气下人体也是通过汗液带走多余热量以维持体温的恒定。汗液从皮肤排出后被衣物吸收，由于衣物的透气排汗性能较差，汗液和热量难以及时散发，会给穿衣者带来潮湿闷热的不适感；另外当人停止运动或进入寒冷环境后，湿润的衣物保暖性能降低，让人愈发感觉寒冷。因此，使衣物具有良好的透气性和排汗能力能够大大增加穿衣者的舒适感。
专利CN 107130441 A提供了一种透气排汗面料，通过在透气层的经纱和纬纱间隔设置并形成透气孔来增加面料的透气性；然而该发明面料为双向导湿模式，实际应用中可能会出现水分回流、排汗性能降低的缺陷。专利CN 110341266 A公开了一种单向导湿织物及其制备方法和应用，通过在基体表面以静电纺丝形成疏水效果较佳的疏水层，使织物获得单向导湿功能；但是该发明面料不具备抗菌能力，实际应用中可能会出现因细菌滋生导致疏水层受破坏的技术问题。
发明内容
有鉴于现有技术的上述缺陷，本发明所解决的技术问题是：(1)提供一种易透气排汗的亲肤面料，使其具备单向导湿的功能；(2)简化在面料中引入抗菌成分的步骤，解决因引入抗菌物质破坏面料原有的疏水-亲水梯度平衡，造成导湿能力的下降的技术问题；(3)针对本发明使用的抗菌物质，制备了一种与之适配的阳离子型水性聚氨酯，解决了水性聚氨酯和改性聚六亚甲基胍结合后出现的因胍基电离不良导致的抗菌效果下降的技术问题。
传统的透气排汗面料一般使用增大与空气接触面积的方式来增加水分的散发速率，从而达到透气排汗的效果；但是这种方式的缺点是水分的运动是双向性的，若环境湿度过大，外界的水分也可以渗入面料之中，大大阻碍了排汗的进行。为了解决这一问题，许多具备单向导湿功能的面料已经问世，通过构建具有不同疏水及亲水梯度的不对称结构，使疏水区和亲水区产生额外压差以实现单向导湿功能；现有技术中通常采用化学整理、表面改性或原位聚合等方式来实现单向导湿目的，但是使用的制造工艺复杂。
普通的单向导湿面料不具备抗菌性能，为了使面料具备抗菌能力，通常需要对面料使用抗菌液整理或引入抗菌涂层。发明人发现，使用此类常规方法赋予单向导湿面料抗菌性能会严重削弱面料的单向导湿能力；由于单向导湿面料需要构建具有不同疏水及亲水梯度的不对称结构，亲水层和疏水层需要具备统一的梯度关系，通过后续进行抗菌液整理的方式引入抗菌物质会破坏面料原有的梯度平衡，造成导湿能力的下降；而抗菌涂层为面料引入了额外的功能层，涂层和原有的疏水层及亲水层难以形成统一的梯度关系，也会导致导湿能力的下降。传统的抗菌物质多为小分子抗菌剂，在实际的生产使用中，小分子抗菌剂粒径小，附着于面料纤维后吸附不牢，经水洗或长期使用容易流失；聚六亚甲基胍作为一种高分子有机物，具有比小分子抗菌剂更长的分子链，且胍基可以和磷脂中的磷酸根形成稳定的八元环，可以穿透细胞膜达到杀菌效果，但是聚六亚甲基胍易溶于水，为了防止使用过程中随水分流失，需要对聚六亚甲基胍进行进一步处理。针对上述技术问题，发明人对聚六亚甲基胍做改性处理通过引入脂溶性分子链段降低水溶性，并将其作为静电纺丝注射液的部分原料，采用纺丝一步制备具有抗菌功能的功能层并作为单向导湿复合层的一部分，进而避免后续额外的抗菌整理操作对面料亲水-疏水梯度平衡的破坏。
水性聚氨酯是一种新型聚氨酯，可以用水代替有机溶剂作为分散介质，有着无污染、安全可靠、机械性能优良、相容性好、易于改性等优点。发明人发现，在纺织面料领域的使用中，水性聚氨酯的渗透性远小于溶剂型聚氨酯，尤其适用于作为需要良好透气排汗性的薄层织物的涂饰剂；相比溶剂型聚氨酯，水性聚氨酯可以改善织物的耐磨性、抗皱性、回弹性、耐水性、耐热性及耐洗涤性，还能提高其染色深度、牢度，发明人遂将水性聚氨酯作为原料，引入面料的制备之中。
一种易透气排汗的亲肤面料，采用下述方法制备而成：
S1将聚氨酯溶于有机溶剂，得到聚氨酯注射液；通过静电纺丝工艺将聚氨酯注射液纺丝成膜，得到亲肤层，备用；
S2将聚乳酸-羟基乙酸共聚物、聚丙烯腈溶于有机溶剂，得到共混物；向共混物中继续加入聚丙烯酸钠，经混合得到混合注射液；通过静电纺丝工艺将混合注射液纺丝成膜，得到排水层，备用；
S3.将脂溶型聚六亚甲基胍改性水性聚氨酯或疏水型聚六亚甲基胍改性阳离子水性聚氨酯溶于水，得到抗菌注射液；通过静电纺丝工艺将抗菌注射液纺丝成膜，得到抗菌层，备用；
S4.由内至外依次将亲肤层、排水层、抗菌层通过热压组合，得到易透气排汗的亲肤面料。
优选的，步骤S1～S3中所述静电纺丝工艺中，注射针头内径为0.35～0.42mm，注射速率为0.05～0.2mL/min，纺丝距离为16～22cm，电压为18～24kV，烘干温度35～50℃，相对湿度20～30％。
优选的，以重量份计，步骤S1中所述聚氨酯的使用量为6～12份；所述有机溶剂为四氢呋喃，其使用量为8～15份；所述亲肤层的厚度为180～220μm。
优选的，以重量份计，步骤S2中所述聚乳酸-羟基乙酸共聚物的使用量为6～12份；聚丙烯腈的使用量为4～8份；所述有机溶剂为四氢呋喃，其使用量为24～32份；所述聚丙烯酸钠的使用量为1.5～3份；所述排水层的厚度为120～150μm。
优选的，以重量份计，步骤S3中所述脂溶型聚六亚甲基胍改性水性聚氨酯或疏水型聚六亚甲基胍改性阳离子水性聚氨酯的使用量为14～22份；所述水的使用量为16～28份；所述抗菌层的厚度为110～130μm。
优选的，步骤S3中所述脂溶型聚六亚甲基胍改性水性聚氨酯的制备方法如下：
X1以重量份计，1.5～2.5份水中加入0.04～0.09份月桂酸钠，加热升温至85～95℃并混合0.5～2h；继续加入0.018～0.036份聚六亚甲基胍，反应1～3h后冷却至室温，过滤得滤饼、水洗、干燥，得到脂溶型聚六亚甲基胍，备用；
X2以重量份计，将32～40份水性聚氨酯加热至65～75℃，随后加入步骤X1得到的脂溶型聚六亚甲基胍，混合5～20min后冷却至室温，得到脂溶型聚六亚甲基胍改性水性聚氨酯。
胍基有极强的杀灭细菌的能力，而且广谱、高效、并具有长期抑菌作用；但是在使用中发明人发现，将聚六亚甲基胍或者脂溶型聚六亚甲基胍加入水性聚氨酯后，都出现了胍基的电离不充分的技术问题。发明人经过观察分析得出，产生这种现象的原因可能是市场上使用的水性聚氨酯通常为阴离子型或非离子型水性聚氨酯，阴离子型水性聚氨酯和胍基具有强静电吸引作用，两者结合后胍基的电离收到抑制，难以发挥正常抑菌效果；非离子型水性聚氨酯的吸引作用较弱，但是仍然可以使胍基的正常电离都到影响。为此发明人做出进一步改进，在脂溶型聚六亚甲基胍改性水性聚氨酯的基础上制备了一种阳离子水性聚氨酯以适配脂溶型聚六亚甲基胍，从而使胍基能够良好地电离并发挥优良的抗菌效果。
优选的，步骤S3中所述疏水型聚六亚甲基胍改性阳离子水性聚氨酯的制备方法如下：
Y1以重量份计，1.5～2.5份水中加入0.04～0.09份月桂酸钠，加热升温至85～95℃并混合0.5～2h；继续加入0.018～0.036份聚六亚甲基胍，反应1～3h后冷却至室温，过滤得滤饼、水洗、干燥，得到脂溶型聚六亚甲基胍，备用；
Y2无氧环境下，以重量份计，将7.2～10.8份异佛尔酮二异氰酸酯、16.8～25.2份聚醚多元醇、2.6～3.9份1,4-丁二醇、0.01～0.015份二月桂酸二丁基锡混合；混合完成后升温至75～85℃反应0.5～2h；降温至45～60℃并加入2～3份甲基二乙醇胺，混合10～30min；继续升温至65～75℃，首先反应0.5～1h后加入步骤Y1得到的脂溶型聚六亚甲基胍，随后继续反应1～2h；降温至40～50℃，加入1.1～1.6份乙酸，混合10～30min后冷却至室温，得到疏水型聚六亚甲基胍改性阳离子水性聚氨酯。
优选的，步骤S4种所述热压的操作温度为110～130℃，压强为0.2～0.4kg/cm2。
在符合本领域常识的基础上，上述各优选条件，可以任意组合，即得本发明各较佳实施例。
本发明配方中部分原料的介绍及作用如下：
聚六亚甲基胍：一种高分子聚合物，具有良好的抗菌效果。本发明中作为改性原料。
月桂酸钠：一种化学物质，用作香皂、清洗剂、杀虫剂，还用于有机合成。本发明中作为改性原料。
本发明的有益效果：
与现有技术相比，本发明使用一体化工序将抗菌成分和纺织原料结合，采用一步法制备了具有不同亲水-疏水梯度的易透气排汗的亲肤面料，能够有效避免现有技术中对面料进行后续处理导致的破坏疏水-亲水梯度平衡，使面料单向导湿的稳定性得到提升。
相比于现有技术，本发明使用脂溶性长链对聚六亚甲基胍进行改性处理，处理后得到的面料具有良好的抗洗涤性，经过多次洗涤后抗菌成分不会流失，仍可发挥良好的抗菌效果。
与现有技术相比，本发明制备使用了一种水性聚氨酯，能与改性聚六亚甲基胍良好适配使胍基顺利电离，所制备的面料比现有技术具有更良好的抗菌稳定性。
具体实施方式
下面通过实施例的方式进一步说明本发明，但并不因此将本发明限制在所述的实施例范围之中。下列实施例中未注明具体条件的实验方法，按照常规方法和条件，或按照商品说明书选择。
本发明对照例及实施例中部分原材料参数如下：
聚乳酸-羟基乙酸共聚物，CAS号：26780-50-7；
聚六亚甲基胍，CAS号：57028-96-3；
异佛尔酮二异氰酸酯，CAS号：4098-71-9；
聚醚多元醇，CAS号：9003-11-6；
甲基二乙醇胺，CAS号：4767-03-7。
实施例1
一种易透气排汗的亲肤面料，采用下述方法制备而成：
S1将0.8kg聚氨酯溶于1.4kg四氢呋喃，得到聚氨酯注射液；通过静电纺丝工艺将聚氨酯注射液纺丝成膜，得到亲肤层，亲肤层厚度为220μm，备用；
S2将0.75kg聚乳酸-羟基乙酸共聚物、0.45kg聚丙烯腈溶于2.8kg四氢呋喃，得到共混物；向共混物中继续加入0.21kg聚丙烯酸钠，经混合得到混合注射液；通过静电纺丝工艺将混合注射液纺丝成膜，得到排水层，排水层厚度为140μm，备用；
S3.将1.8kg水性聚氨酯、0.0025kg聚六亚甲基胍溶于2.2kg水，得到抗菌注射液；通过静电纺丝工艺将抗菌注射液纺丝成膜，得到抗菌层，抗菌层厚度为110μm，备用；
S4.由内至外依次将亲肤层、排水层、抗菌层通过热压组合，得到易透气排汗的亲肤面料。
步骤S1～S3中所述静电纺丝工艺中，注射针头内径为0.36mm，注射速率为0.08mL/min，纺丝距离为18cm，电压为22kV，烘干温度45℃，相对湿度25％。
步骤S4种所述热压的操作温度为115℃，压强为0.2kg/cm2。
实施例2
一种易透气排汗的亲肤面料，采用下述方法制备而成：
S1将0.8kg聚氨酯溶于1.4kg四氢呋喃，得到聚氨酯注射液；通过静电纺丝工艺将聚氨酯注射液纺丝成膜，得到亲肤层，亲肤层厚度为220μm，备用；
S2将0.75kg聚乳酸-羟基乙酸共聚物、0.45kg聚丙烯腈溶于2.8kg四氢呋喃，得到共混物；向共混物中继续加入0.21kg聚丙烯酸钠，经混合得到混合注射液；通过静电纺丝工艺将混合注射液纺丝成膜，得到排水层，排水层厚度为140μm，备用；
S3.将1.8kg脂溶型聚六亚甲基胍改性水性聚氨酯溶于2.2kg水，得到抗菌注射液；通过静电纺丝工艺将抗菌注射液纺丝成膜，得到抗菌层，抗菌层厚度为110μm，备用；
S4.由内至外依次将亲肤层、排水层、抗菌层通过热压组合，得到易透气排汗的亲肤面料。
步骤S1～S3中所述静电纺丝工艺中，注射针头内径为0.36mm，注射速率为0.08mL/min，纺丝距离为18cm，电压为22kV，烘干温度45℃，相对湿度25％。
所述脂溶型聚六亚甲基胍改性水性聚氨酯的制备方法如下：
X1向0.16kg水中加入0.005kg月桂酸钠，加热升温至85℃并混合1.5h；继续加入0.0025kg聚六亚甲基胍，反应1.5h后冷却至室温，过滤得滤饼、水洗3次、干燥，得到脂溶型聚六亚甲基胍，备用；
X2将3.6kg水性聚氨酯加热至70℃，随后加入步骤X1得到的脂溶型聚六亚甲基胍，以1200rpm的速率混合20min后冷却至室温，得到脂溶型聚六亚甲基胍改性水性聚氨酯。
步骤S4种所述热压的操作温度为115℃，压强为0.2kg/cm2。
实施例3
一种易透气排汗的亲肤面料，采用下述方法制备而成：
S1将0.8kg聚氨酯溶于1.4kg四氢呋喃，得到聚氨酯注射液；通过静电纺丝工艺将聚氨酯注射液纺丝成膜，得到亲肤层，亲肤层厚度为220μm，备用；
S2将0.75kg聚乳酸-羟基乙酸共聚物、0.45kg聚丙烯腈溶于2.8kg四氢呋喃，得到共混物；向共混物中继续加入0.21kg聚丙烯酸钠，经混合得到混合注射液；通过静电纺丝工艺将混合注射液纺丝成膜，得到排水层，排水层厚度为140μm，备用；
S3.将1.8kg聚六亚甲基胍改性阳离子水性聚氨酯溶于2.2kg水，得到抗菌注射液；通过静电纺丝工艺将抗菌注射液纺丝成膜，得到抗菌层，抗菌层厚度为110μm，备用；
S4.由内至外依次将亲肤层、排水层、抗菌层通过热压组合，得到易透气排汗的亲肤面料。
步骤S1～S3中所述静电纺丝工艺中，注射针头内径为0.36mm，注射速率为0.08mL/min，纺丝距离为18cm，电压为22kV，烘干温度45℃，相对湿度25％。
所述聚六亚甲基胍改性阳离子水性聚氨酯的制备方法如下：
氮气保护下，将1.08kg异佛尔酮二异氰酸酯、2.52kg聚醚多元醇、0.39kg 1,4-丁二醇、0.0015kg二月桂酸二丁基锡混合；混合完成后升温至85℃反应1.5h；降温至55℃并加入0.25kg甲基二乙醇胺，混合20min；继续升温至75℃，首先反应0.5h后加入0.0025kg聚六亚甲基胍，随后继续反应2h；降温至40℃，加入0.13kg乙酸，混合15min后冷却至室温，得到聚六亚甲基胍改性阳离子水性聚氨酯。
步骤S4种所述热压的操作温度为115℃，压强为0.2kg/cm2。
实施例4
一种易透气排汗的亲肤面料，采用下述方法制备而成：
S1将0.8kg聚氨酯溶于1.4kg四氢呋喃，得到聚氨酯注射液；通过静电纺丝工艺将聚氨酯注射液纺丝成膜，得到亲肤层，亲肤层厚度为220μm，备用；
S2将0.75kg聚乳酸-羟基乙酸共聚物、0.45kg聚丙烯腈溶于2.8kg四氢呋喃，得到共混物；向共混物中继续加入0.21kg聚丙烯酸钠，经混合得到混合注射液；通过静电纺丝工艺将混合注射液纺丝成膜，得到排水层，排水层厚度为140μm，备用；
S3.将1.8kg疏水型聚六亚甲基胍改性阳离子水性聚氨酯溶于2.2kg水，得到抗菌注射液；通过静电纺丝工艺将抗菌注射液纺丝成膜，得到抗菌层，抗菌层厚度为110μm，备用；
S4.由内至外依次将亲肤层、排水层、抗菌层通过热压组合，得到易透气排汗的亲肤面料。
步骤S1～S3中所述静电纺丝工艺中，注射针头内径为0.36mm，注射速率为0.08mL/min，纺丝距离为18cm，电压为22kV，烘干温度45℃，相对湿度25％。
所述疏水型聚六亚甲基胍改性阳离子水性聚氨酯的制备方法如下：
Y1向0.16kg水中加入0.005kg月桂酸钠，加热升温至85℃并混合1.5h；继续加入0.0025kg聚六亚甲基胍，反应1.5h后冷却至室温，过滤得滤饼、水洗3次、干燥，得到脂溶型聚六亚甲基胍，备用；
Y2氮气保护下，将1.08kg异佛尔酮二异氰酸酯、2.52kg聚醚多元醇、0.39kg 1,4-丁二醇、0.0015kg二月桂酸二丁基锡混合；混合完成后升温至85℃反应1.5h；降温至55℃并加入0.25kg甲基二乙醇胺，混合20min；继续升温至75℃，首先反应0.5h后加入步骤Y1得到的脂溶型聚六亚甲基胍，随后继续反应2h；降温至40℃，加入0.13kg乙酸，混合15min后冷却至室温，得到疏水型聚六亚甲基胍改性阳离子水性聚氨酯。
步骤S4种所述热压的操作温度为115℃，压强为0.2kg/cm2。
对照例1
一种易透气排汗的亲肤面料，采用下述方法制备而成：
S1将0.8kg聚氨酯溶于1.4kg四氢呋喃，得到聚氨酯注射液；通过静电纺丝工艺将聚氨酯注射液纺丝成膜，得到亲肤层，亲肤层厚度为220μm，备用；
S2将0.75kg聚乳酸-羟基乙酸共聚物、0.45kg聚丙烯腈溶于2.8kg四氢呋喃，得到共混物；向共混物中继续加入0.21kg聚丙烯酸钠，经混合得到混合注射液；通过静电纺丝工艺将混合注射液纺丝成膜，得到排水层，排水层厚度为140μm，备用；
S3.将1.8kg水性聚氨酯溶于2.2kg水，得到外界接触层注射液；通过静电纺丝工艺将抗菌注射液纺丝成膜，得到外界接触层，外界接触层厚度为110μm，备用；
S4.由内至外依次将亲肤层、排水层、外界接触层通过热压组合，得到易透气排汗的亲肤面料。
步骤S1～S3中所述静电纺丝工艺中，注射针头内径为0.36mm，注射速率为0.08mL/min，纺丝距离为18cm，电压为22kV，烘干温度45℃，相对湿度25％。
步骤S4种所述热压的操作温度为115℃，压强为0.2kg/cm2。
测试例1
易透气排汗的亲肤面料的抗菌性能测试参考GB/T 20944.2-2007《纺织品抗菌性能的评价第2部分：吸收法》中的具体要求进行。每实施例或对照例的取样分为3组，每组取3个尺寸为10cm×10cm的小样，将小样平均剪成2块。三组样品中，第一组不进行洗涤操作，第二组洗涤50次，第三组洗涤100次，对三组样品进行抗菌性能测试。洗涤方法参考GB/T8629-2017《纺织品试验用家庭洗涤和干燥程序》中的具体要求进行，使用C型标准洗衣机，洗涤程序编号为4N。抑菌率结果按要求取算数平均值并修约至整数位。易透气排汗的亲肤面料的抗菌性能测试结果见表1。
表1
Figure BDA0003497364850000131
Figure BDA0003497364850000141
注：表中标注的数字0、50、100为洗涤次数。
根据《纺织品抗菌性能的评价第2部分：吸收法》中的定义，当抑菌率≥90％，样品具有抗菌效果；当或抑菌率≥99％，样品具有良好的抗菌效果。通过上述实施例和对照例的对比可以看出，实施例4具有最佳的抗菌效果，经多次洗涤仍然可以保持抗菌的稳定性。其原因可能在于，聚六亚甲基胍经改性处理后引入脂溶性分子链段降低水溶性，在水分存在下不易溶于水中而流失，可以耐受多次洗涤；同时改性后的聚六亚甲基胍与自制的阳离子水性聚氨酯适配性好，在细菌存在的环境中，胍基能够正常电离并发挥抑菌效果。实施例3相比于实施例2具有更高的初始抗菌效果，原因可能在于实施例3中抗菌成分的胍基电离要易于实施例2；但是实施例3经洗涤后抗菌效果损失的程度要大于实施例2，原因可能在于聚六亚甲基胍洗涤时溶于水后流失，造成抗菌效果的降低。
测试例2
易透气排汗的亲肤面料的透气性能测试采用的方法及步骤参考GB/T 5453-1997《纺织品织物透气性的测定》，每实施例或对照例测试5件试样，试样测试面积为20cm2，测试压降为100Pa，结果按要求取算术平均值。易透气排汗的亲肤面料的速干性能测试参照GB/T21655.1-2008《纺织品吸湿速干性的评定第1部分：单项组合试验法》的具体要求进行，每实施例或对照例测试5件试样，试样平整并无褶皱，尺寸为15cm×15cm，测试结果按要求取算术平均值，同时观察并标注面料导湿的形式。易透气排汗的亲肤面料的透气性能及速干性能测试结果见表2。
表2
Figure BDA0003497364850000151
根据国标中的定义，当面料透气率≧180mm/s，面料具有优良的透气性能；当蒸发速率≧0.18g/h，面料具有优良的排汗性能。通过上述实施例和对照例的测试结果可以看出，使用静电纺丝工艺制备的具有三层结构的易透气排汗的亲肤面料在满足单向导湿的同时，还兼具了优良的透气性和排汗性。产生这种现象的原因可能在于，静电纺丝工艺可以制备厚度轻薄的面料，有利于气体和水分的交换；以亲肤层、排水层、抗菌层构建的三层结构具有不同疏水及亲水梯度，这种不对称结构能够有效地吸收和泵送水分。

Claims (10)

1.一种易透气排汗的亲肤面料的制备方法，其特征在于：将脂溶型聚六亚甲基胍改性水性聚氨酯通过静电纺丝成膜，即抗菌层；通过热压将亲肤层、排水层、抗菌层结合，得所述易透气排汗的亲肤面料；所述亲肤面料由内至外依次为亲肤层、排水层、抗菌层。
2.根据权利要求1所述的易透气排汗的亲肤面料的制备方法，其特征在于，所述脂溶型聚六亚甲基胍改性水性聚氨酯的制备方法为：向水中加入月桂酸钠，加热升温至85～95℃并混合0.5～2h；继续加入聚六亚甲基胍，反应1～3h后冷却至室温，过滤得滤饼；水洗、干燥，得到脂溶型聚六亚甲基胍；将水性聚氨酯加热至65～75℃，随后加入脂溶型聚六亚甲基胍，混合5～20min后冷却至室温，得到脂溶型聚六亚甲基胍改性水性聚氨酯。
3.一种易透气排汗的亲肤面料的制备方法，其特征在于：将疏水型聚六亚甲基胍改性阳离子水性聚氨酯通过静电纺丝成膜，即抗菌层；通过热压将亲肤层、排水层、抗菌层结合，得所述易透气排汗的亲肤面料；所述亲肤面料由内至外依次为亲肤层、排水层、抗菌层。
4.根据权利要求3所述的易透气排汗的亲肤面料的制备方法，其特征在于：所述疏水型聚六亚甲基胍改性阳离子水性聚氨酯的制备方法为：向水中加入月桂酸钠，加热升温至85～95℃并混合0.5～2h；继续加入聚六亚甲基胍，反应1～3h后冷却至室温，过滤得滤饼；水洗、干燥，得到脂溶型聚六亚甲基胍；在无氧环境下，将异佛尔酮二异氰酸酯、聚醚多元醇、1,4-丁二醇、二月桂酸二丁基锡混合均匀；升温至75～85℃反应0.5～2h；降温至45～60℃并加入甲基二乙醇胺，混合10～30min；继续升温至65～75℃，先反应0.5～1h后加入脂溶型聚六亚甲基胍，随后继续反应1～2h；降温至40～50℃，再加入乙酸，混合10～30min后冷却至室温，得到疏水型聚六亚甲基胍改性阳离子水性聚氨酯。
5.根据权利要求1～4任一项所述的易透气排汗的亲肤面料的制备方法，其特征在于，包括下述步骤：
S1将聚氨酯溶于有机溶剂，得到聚氨酯注射液；通过静电纺丝工艺将聚氨酯注射液纺丝成膜，得到亲肤层，备用；
S2将聚乳酸-羟基乙酸共聚物、聚丙烯腈溶于有机溶剂，得到共混物；向共混物中继续加入聚丙烯酸钠，经混合得到混合注射液；通过静电纺丝工艺将混合注射液纺丝成膜，得到排水层，备用；
S3.将脂溶型聚六亚甲基胍改性水性聚氨酯或疏水型聚六亚甲基胍改性阳离子水性聚氨酯溶于水，得到抗菌注射液；通过静电纺丝工艺将抗菌注射液纺丝成膜，得到抗菌层，备用；
S4.由内至外依次将亲肤层、排水层、抗菌层通过热压组合，得到易透气排汗的亲肤面料。
6.根据权利要求5所述的一种易透气排汗的亲肤面料的制备方法，其特征在于：步骤S1～S3中所述静电纺丝工艺中，注射针头内径为0.35～0.42mm，注射速率为0.05～0.2mL/min，纺丝距离为16～22cm，电压为18～24kV，烘干温度35～50℃，相对湿度20～30％。
7.根据权利要求5所述的一种易透气排汗的亲肤面料的制备方法，其特征在于：以重量份计，步骤S1中所述聚氨酯的使用量为6～12份；所述有机溶剂为四氢呋喃，其使用量为8～15份；所述亲肤层的厚度为180～220μm。
8.根据权利要求5所述的一种易透气排汗的亲肤面料的制备方法，其特征在于：以重量份计，步骤S2中所述聚乳酸-羟基乙酸共聚物的使用量为6～12份；聚丙烯腈的使用量为4～8份；所述有机溶剂为四氢呋喃，其使用量为24～32份；所述聚丙烯酸钠的使用量为1.5～3份；所述排水层的厚度为120～150μm。
9.根据权利要求5所述的一种易透气排汗的亲肤面料的制备方法，其特征在于：以重量份计，步骤S3中所述脂溶型聚六亚甲基胍改性水性聚氨酯或疏水型聚六亚甲基胍改性阳离子水性聚氨酯的使用量为14～22份；所述水的使用量为16～28份；所述抗菌层的厚度为110～130μm。
10.一种易透气排汗的亲肤面料，其特征在于：采用如权利要求书1～9任一项所述的方法制备而成。
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