CN107512061A - 一种防水透湿纺织品 - Google Patents
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- B32B27/00—Layered products comprising a layer of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2307/00—Properties of the layers or laminate
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Abstract
本发明公开了一种防水透湿纺织品。该纺织品依次包括基布、微多孔聚氨酯树脂膜、采用粘合剂贴合的无孔聚氨酯树脂膜以及里料,其中微多孔聚氨酯树脂膜是通过在基布上涂覆聚氨酯树脂而获得,利用无孔膜贴合工艺和湿法涂层工艺,获得了高耐水压以及高透湿性,而且手感柔软的纺织品,可以用于制作各类特种用途的登山服、冲锋衣、钓鱼服等。
Description
技术领域
本发明涉及一种防水透湿纺织品。
背景技术
目前,市场上的防水透湿纺织品有高密度组织的、涂层加工的,以及贴合加工的等等,种类繁多。
其中高密度组织的纺织品是利用纱线自身排列较紧密,经压光后纱线间的间隙被进一步填充,从而获得一定的耐水压,但一般都在1000Pa以下;而未被完全填充的间隙,又能赋予纺织品较好的透湿度和。
涂层加工的纺织品,包括湿法和干法。湿法涂层可以形成防水、透气的聚氨酯微多孔树脂层,水汽可以通过微多孔结构传导到外面,从而达到透湿的目的,而微多孔结构会影响到耐水压,为了提高耐水压一般考虑加大涂覆量,但这样会使得手感变硬,影响穿着舒适性。如专利文献CN103866579A公开了一种透气防水透湿湿法涂层面料及其加工方法和用途,为了要达到500~8000mmH2O耐水压,需要进行湿法涂层,并且要涂两遍,使树脂膜厚度达到15~35um,但是树脂膜厚度的提高,会导致手感变硬,影响穿着舒适性。
贴合加工的纺织品,采用亲水性聚氨酯无孔膜与面料进行贴合而获得,利用树脂膜的亲水性,将水蒸气传输到面料表面,获得透湿效果,但此类产品在长时间雨淋或者浸湿时,雨水会从表层传导到里层,导致防水性下降。如专利文献CN102687921A公开了一种防水透湿复合面料,该面料通过贴合方法得到,但长时间雨淋或者浸湿,粘合剂容易剥落,影响防水透湿耐久性。
发明内容
本发明的目的在于提供一种防水透湿性优越、手感柔软的纺织品。
本发明的纺织品依次包括基布、微多孔聚氨酯树脂膜、采用粘合剂贴合的无孔聚氨酯树脂膜以及里料,其中前记微多孔聚氨酯树脂膜是通过在基布上涂覆聚氨酯树脂而获得的。
本发明的纺织品,利用无孔膜贴合工艺和湿法涂层工艺,获得了高耐水压以及高透湿性,而且手感柔软。可以用于制作各类特种用途的登山服、冲锋衣、钓鱼服等。
具体实施方式
本发明的纺织品依次包括基布、微多孔聚氨酯树脂膜、采用粘合剂贴合的无孔聚氨酯树脂膜以及里料,其中微多孔聚氨酯树脂膜是通过在基布上涂覆聚氨酯树脂而获得。通过涂层与贴膜结合的加工方法,可以达到较高的耐水压。
本发明中所用基布优选为覆盖系数在2200以上的机织物。如果覆盖系数小于2200的话,纺织品在穿着过程中耐磨性下降,有可能会导致里层的聚氨酯树脂膜出现破损现象。本发明中对于机织物的纤维原料没有特别限定,可以是各种合成纤维、人造纤维等。
本发明所用微多孔聚氨酯膜,是通过在基布上涂覆聚氨酯树脂而获得的,优选其厚度为5~20um、孔径为0.05~5um。如果膜厚低于5um的话,有可能出现耐水压降低的现象;膜厚超过20um的话,手感变硬,有可能会影响到穿着舒适度。孔径小于0.05um的话,不利于水蒸气的传导,透湿性有降低的倾向;而孔径超过5um 的话,耐水压有可能会降低并且出现不稳定的现象。
本发明所用粘合剂优选为聚氨酯、聚丙烯酸酯或聚乙烯醇中的一种或多种。考虑到耐磨性和透湿性,更优选聚氨酯类粘合剂。
本发明中,粘合剂的附着量优选为10~30g/m2。附着量少于10 g/m2的话,在穿着及洗涤过程中,有可能出现膜面剥离不良的现象,导致面料分层。而附着量多于30g/m2的话,不但提高了成本,而且可能出现手感变硬、透湿度下降的问题。
本发明所用无孔聚氨酯树脂膜,其厚度优选为10~20um。如果膜厚低于10um的话,耐水压有下降的趋势;如果膜厚大于20um的话,纺织品手感变硬,同时透湿度有可能受到影响。
本发明所用里料优选为经编针织物或者纬编针织物,包括起毛加工品、摇粒绒等等,此类里料可以进一步提高穿着舒适度并提供一定的保暖效果。经编针织物或者纬编针织物可以避免人体与膜面直接接触,提高了穿着的舒适性;而且与膜面的接触几率降低后,树脂膜的受损几率也会下降,穿着时间被延长。
本发明各项性能的定义及测试方法如下:
(1)覆盖系数
覆盖系数= ×经密度(根/inch)+×纬密度(根/inch)。
(2)厚度
使用SEM观察面料断面进行判断。
(3)手感评价
关于蓬松感、柔软感等手感的评价,一般采用10名熟练者的评价结果(共有4个等级)
◎:优 ;○:良; △:一般;×:差。
(4)耐水压
根据JIS L1O92 B 2009「纤维制品的防水性实验方法」进行测试。
(5)透湿度
根据JIS L1099 B 2006「纤维制品的透湿度实验方法」进行测试。
(6)剥离强力
根据JIS L1089 2007「纤维制品的剥离强度实验方法」进行测试。
(7)耐磨性
根据JIS L 1096 1999 E法「马丁代尔织物耐磨性」进行测试,磨2万次,确认破损有无。○:无破损,×:有破损。
实施例1
将经纱70D尼龙、纬纱160D尼龙的平纹织物通过如下的加工工程:坯布→精练→染色→防水定型→压光,制得经纬密为232*68根/inch的机织物作为基布使用,其覆盖系数为2795;
接着在上述基布的压光面上采用湿法涂层的方法涂覆一层厚度为15um 的微多孔聚氨酯树脂层获得涂层品;
然后选用厚度为15um的无孔亲水聚氨酯树脂膜与上述涂层品进行贴合,贴合条件:120℃*10m/min、粘合剂聚氨酯树脂的附着量为15g/m2,在温度40℃、湿度70%条件下熟成24h,获得半成品;
最后选用经编针织物作为里料与上述半成品的另一面贴合,具体贴合条件同第一次贴合条件,得到本发明的防水透湿纺织品。具体性能如表1所示。
实施例2
将经纱70D尼龙、纬纱160D尼龙的平纹织物通过如下的加工工程:坯布→精练→染色→防水定型→压光,制得经纬密为232*68根/inch的机织物作为基布使用,其覆盖系数为2795;
接着在上述基布的压光面上采用湿法涂层的方法涂覆一层厚度为5um 的微多孔聚氨酯树脂层获得涂层品;
然后选用厚度为10um的无孔亲水聚氨酯树脂膜与上述涂层品进行贴合,贴合条件:120℃*10m/min、粘合剂聚氨酯树脂的附着量为15g/m2,在温度40℃、湿度70%条件下熟成24h,获得半成品;
最后选用经编针织物作为里料与上述半成品的另一面贴合,具体贴合条件同第一次贴合条件,得到本发明的防水透湿纺织品。具体性能如表1所示。
实施例3
将经纱70D尼龙、纬纱160D尼龙的平纹织物通过如下的加工工程:坯布→精练→染色→防水定型→压光,制得经纬密为232*68根/inch的机织物作为基布使用,其覆盖系数为2795;
接着在上述基布的压光面上采用湿法涂层的方法涂覆一层厚度为20um 的微多孔聚氨酯树脂层获得涂层品;
然后选用厚度为20um的无孔亲水聚氨酯树脂膜与上述涂层品进行贴合,贴合条件:120℃*10m/min、粘合剂聚丙烯酸酯树脂的附着量为15g/m2,在温度40℃、湿度70%条件下熟成24h,获得半成品;
最后选用经编针织物作为里料与上述半成品的另一面贴合,具体贴合条件同第一次贴合条件,得到本发明的防水透湿纺织品。具体性能如表1所示。
实施例4
将经纱70D尼龙、纬纱160D尼龙的平纹织物通过如下的加工工程:坯布→精练→染色→防水定型→压光,制得经纬密为232*68根/inch的机织物作为基布使用,其覆盖系数为2795;
接着在上述基布的压光面上采用湿法涂层的方法涂覆一层厚度为15um的微多孔聚氨酯树脂层获得涂层品;
然后选用厚度为12um的无孔亲水聚氨酯树脂膜与上述涂层品进行贴合,贴合条件:120℃*10m/min、粘合剂聚乙烯醇树脂的附着量为20g/m2,在温度40℃、湿度70%条件下熟成24h,获得半成品;
最后选用摇粒绒作为里料与上述半成品的另一面贴合,具体贴合条件同第一次贴合条件,得到本发明的防水透湿纺织品。具体性能如表1所示。
实施例5
将经纱150D涤纶、纬纱160DPE涤纶的平纹织物通过如下的加工工程:坯布→精练→染色→防水定型→压光,制得经纬密为196*68根/inch的机织物作为基布使用,其覆盖系数为2500;
接着在上述基布的压光面上采用湿法涂层的方法涂覆一层厚度为15um 的微多孔聚氨酯树脂层获得涂层品;
然后选用厚度为12um的无孔亲水聚氨酯树脂膜与上述涂层品进行贴合,贴合条件:120℃*10m/min、粘合剂聚氨酯树脂的附着量为20g/m2,在温度40℃、湿度70%条件下熟成24h,获得半成品;
最后选用摇粒绒作为里料与上述半成品的另一面贴合,具体贴合条件同第一次贴合条件,得到本发明的防水透湿纺织品。具体性能如表1所示。
实施例6
将经纱40D尼龙、纬纱40D尼龙的平纹织物通过如下的加工工程:坯布→精练→染色→防水定型→压光,制得经纬密为250*161根/inch的机织物作为基布使用,其覆盖系数为2600;
接着在上述基布的压光面上采用湿法涂层的方法涂覆一层厚度为10um 的微多孔聚氨酯树脂层获得涂层品;
然后选用厚度为12um的无孔亲水聚氨酯树脂膜与上述涂层品进行贴合,贴合条件:120℃*10m/min、粘合剂聚氨酯树脂的附着量为10g/m2,在温度40℃、湿度70%条件下熟成24h,获得半成品;
最后选用经编网眼作为里料与上述半成品的另一面贴合,具体贴合条件同第一次贴合条件,得到本发明的防水透湿纺织品。具体性能如表1所示。
比较例1
将经纱70D尼龙、纬纱160D尼龙的平纹织物通过如下的加工工程:坯布→精练→染色→防水定型→压光,制得经纬密为232*68根/inch的机织物作为基布使用,其覆盖系数为2795;
接着在上述基布的压光面上采用湿法涂层的方法涂覆一层厚度为3um 的微多孔聚氨酯树脂层获得涂层品;
然后选用厚度为6um的无孔亲水聚氨酯树脂膜与上述涂层品进行贴合,贴合条件:120℃*10m/min、粘合剂聚氨酯树脂的附着量为6g/m2,在温度40℃、湿度70%条件下熟成24h,获得半成品;
最后选用针织经编作为里料与上述半成品的另一面贴合,具体贴合条件同第一次贴合条件,得到本发明的防水透湿纺织品。具体性能如表1所示。
比较例2
将经纱70D尼龙、纬纱160D尼龙的平纹织物通过如下的加工工程:坯布→精练→染色→防水定型→压光,制得经纬密为232*68根/inch的机织物作为基布使用,其覆盖系数为2795;
接着在上述基布的压光面上采用湿法涂层的方法涂覆一层厚度为25um 的微多孔聚氨酯树脂层获得涂层品;
然后选用厚度为35um的无孔亲水聚氨酯树脂膜与上述涂层品进行贴合,贴合条件:120℃*10m/min、粘合剂聚氨酯树脂的附着量为35g/m2,在温度40℃、湿度70%条件下熟成24h,获得半成品;
最后选用摇粒绒作为里料与上述半成品的另一面贴合,具体贴合条件同第一次贴合条件,得到本发明的防水透湿纺织品。具体性能如表1所示。
比较例3
将经纱70D尼龙、纬纱160D尼龙的平纹织物通过如下的加工工程:坯布→精练→染色→防水定型→压光,制得经纬密为160*68根/inch的机织物作为基布使用,其覆盖系数为2194;
接着在上述基布的压光面上采用湿法涂层的方法涂覆一层厚度为15um 的微多孔聚氨酯树脂层获得涂层品;
然后选用厚度为15um的无孔亲水聚氨酯树脂膜与上述涂层品进行贴合,贴合条件:120℃*10m/min、粘合剂聚氨酯树脂的附着量为15g/m2,在温度40℃、湿度70%条件下熟成24h,获得半成品;
最后选用针织经编作为里料与上述半成品的另一面贴合,具体贴合条件同第一次贴合条件,得到本发明的防水透湿纺织品。具体性能如表1所示。
表1
Claims (7)
1.一种防水透湿纺织品,其特征是:该纺织品依次包括基布、微多孔聚氨酯树脂膜、采用粘合剂贴合的无孔聚氨酯树脂膜以及里料,其中所述微多孔聚氨酯树脂膜是通过在基布上涂覆聚氨酯树脂而获得。
2.根据权利要求1所述的防水透湿纺织品,其特征是:所述基布为覆盖系数在2200以上的机织物。
3.根据权利要求1所述的防水透湿纺织品,其特征是:所述微多孔聚氨酯树脂膜的厚度为5~20um、孔径为0.05~5um。
4.根据权利要求1所述的防水透湿纺织品,其特征是:所述粘合剂的成分为聚氨酯、聚丙烯酸酯或者聚乙烯醇。
5.根据权利要求4所述的防水透湿纺织品,其特征是:所述粘合剂的附着量为10~30g/m2。
6.根据权利要求1所述的防水透湿纺织品,其特征是:所述无孔聚氨酯树脂膜的厚度为10~20um。
7.根据权利要求1所述的防水透湿纺织品,其特征是:所述里料为经编针织物或者纬编针织物。
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CN112571898A (zh) * | 2020-12-14 | 2021-03-30 | 苏州八玺纺织有限公司 | 一种抗菌除臭保温型登山服面料及其制备方法 |
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CN110667214A (zh) * | 2019-11-07 | 2020-01-10 | 吴江市卓品纺织有限公司 | 一种防水透气医用四面弹布 |
CN112571898A (zh) * | 2020-12-14 | 2021-03-30 | 苏州八玺纺织有限公司 | 一种抗菌除臭保温型登山服面料及其制备方法 |
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