CN111660639A - 一种医用防护服面料 - Google Patents
一种医用防护服面料 Download PDFInfo
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Abstract
本发明提供了一种医用防护服面料,包括通过粘结点粘合的面层和内层;所述面层由导电纤维与涤纶长丝织造,并经过抗菌、拒水和柔软处理,其厚度为0.2‑0.6μm,所述内层为高分子聚合膜组成,其厚度为5‑15μm;该面料具有优秀的物理性能,强力性能良好,能够重复使用,在多次通过消毒液高温清洗之后,仍然具有优异的防护性能,减少环境污染的同时,降低医护治疗成本。
Description
技术领域
本发明涉及纺织服装面料领域,具体涉及一种医用防护服面料。
背景技术
当今,人们生活水平不断提高,但传染性病毒(菌)对人们的潜在侵入机会并未减少,因此,配备防护服对保护医患人员的身体健康仍然非常重要。
中国专利CN1820670A公开了一种特种医用防护服面料,从外到内依次包括相互粘结的隔离层、防护织物层和保护层,保护层与防护织物层之间通过粘结点粘合;该发明面料不仅具有较强的透气性,还有防血液渗透、防静电、防水、防油、抗菌、透湿等多项功能。
但包括上述专利在内的现有技术中,目前的防护服材料大多为一次性面料,防护服在使用一次过后必须马上处理丢弃,成本高昂,增加了治疗开销。
发明内容
针对上述问题,本发明提供一种能够重复使用,并有效阻隔病人血液、体液和分泌物渗透,以保护医护人员的安全的医用防护服面料。
为了解决上述问题,本发明采用如下技术方案:
一种医用防护服面料,包括通过粘结点粘合的面层和内层;所述面层由导电纤维与涤纶长丝织造,并经过抗菌、拒水和柔软处理,其厚度为0.2-0.6 μm;所述内层为高分子聚合膜组成,其厚度为5-15μm。
在一些实施例中,所述面层由经纱和纬纱机织而成,所述经纱为涤纶长丝,所述纬纱包括涤纶长丝和导电纤维,所述导电纤维每间隔1-5cm设置一根。
在一些实施例中,所述导电纤维为碳纤维。
在一些实施例中,抗菌处理所采用的抗菌剂为纳米银抗菌剂,拒水处理所采用的抗水剂是C6拒水剂、C8拒水剂或有机硅拒水剂中的任意一种,柔软处理所采用的柔软剂为聚酰胺型柔软剂。
在一些实施例中,所述抗菌剂、拒水剂和柔软剂均采用溶于溶剂的方式制备而成。
在一些实施例中,所述溶剂为水,所述抗菌剂与溶剂的质量比为1%-4%,所述拒水剂与溶剂的质量比为2%-8%,所述柔软剂与溶剂的质量比为1%-5%。
在一些实施例中,所述高分子聚合膜为聚四氟乙烯膜、聚氨酯膜或聚乙烯膜中的任意一种。
在一些实施例中,所述高分子聚合膜具有0.1-15μm的透气微孔。
在一些实施例中,所述面层和内层通过反应性聚氨酯进行点状粘合。
本发明提供的医用防护服面料具有如下优点:
1.面料具有优秀的物理性能,强力性能良好,能够重复使用,在多次通过消毒液高温清洗之后,仍然具有优异的防护性能,减少环境污染的同时,能降低医护治疗成本;
2.抗静电性能良好,能够减少医疗电子设备因静电产生的测试误差,保证病人的诊疗效果;
3.具有良好的拒水性和阻隔性,能够有效避免病人体液、血液和分泌物的渗透,降低医护人员感染风险。
附图说明
图1为本发明提供的一种实施例的横截面结构示意图;
图2为本发明提供的实施例与市售面料的断裂强力试验数据;
图3为本发明提供的实施例与市售面料的电荷面密度试验数据;
图4为本发明提供的实施例与市售面料的拒水等级表。
图1中,1面层、11导电纤维、2内层。
具体实施方式
本发明提供的医用防护服面料,包括通过粘结点粘合的面层1和内层2;所述面层1由导电纤维11与涤纶长丝织造,并经过抗菌、拒水和柔软处理,其厚度为0.2-0.6μm;所述内层2为高分子聚合膜组成,其厚度为5-15μm。
在本发明的优选实施方式中,所述面层1由经纱和纬纱机织而成,所述经纱为涤纶长丝,所述纬纱包括涤纶长丝和导电纤维11,所述导电纤维11每间隔1-5cm设置一根。
所述导电纤维11为碳纤维,其表面还涂有导电涂层。
抗菌处理所采用的抗菌剂为纳米银抗菌剂,拒水处理所采用的抗水剂是 C6拒水剂、C8拒水剂或有机硅拒水剂中的任意一种,柔软处理所采用的柔软剂为聚酰胺型柔软剂。
所述抗菌剂、拒水剂和柔软剂均采用溶于溶剂的方式制备而成,所述溶剂为水,所述抗菌剂与溶剂的质量比为1%-4%,所述拒水剂与溶剂的质量比为 2%-8%,所述柔软剂与溶剂的质量比为1%-5%。
所述高分子聚合膜为聚四氟乙烯膜、聚氨酯膜或聚乙烯膜中的任意一种,具有0.1-15μm的透气微孔。
所述面层1和内层2通过反应性聚氨酯进行点状粘合。
面层1是由经纱和纬纱机织而成的梭织物,与内层高分子聚合膜贴合,使得面料具有优秀的物理性能,强力性能良好,能够重复使用,在经受含氯消毒液洗涤多次后,仍能保持优异的防护性能。
内层2高分子聚合膜的微孔孔径小于水滴直径,可以防止血液或其它体液渗透,另一方面,微孔的孔径大于水蒸汽分子的直径,水蒸汽分子可以自由通过,使面料具有较好的透湿性能。
为了更好的理解本发明,下面结合实施例对本发明作进一步的描述。
实施例1
面层原料选择全涤150T尼丝纺,织造时每隔1cm放置一根导电纤维,织造得到厚度为0.2μm的面层,使用1%的纳米银抗菌整理剂对面料进行抗菌整理,再使用2%的有机硅拒水剂进行拒水处理,之后使用1%的聚酰胺柔软剂进行柔软处理,通过反应性聚氨酯,点状贴合厚度为5μm、孔径为0.1μm的聚四氟乙烯膜,制得面料A。
实施例2
面层原料选择全涤250T尼丝纺,织造时每隔3cm放置一根导电纤维,织造得到厚度为0.4μm的面层,使用2.5%的纳米银抗菌整理剂对面料进行抗菌整理,再使用5%的C8水剂进行拒水处理,之后使用3%的聚酰胺柔软剂进行柔软处理,通过反应性聚氨酯,点状贴合厚度为10μm、孔径为8μm的聚氨酯膜,制得面料B。
实施例3
面层原料选择全涤300T春亚纺,织造时每隔5cm放置一根导电纤维,织造得到厚度为0.6μm的面层,使用4%的纳米银抗菌整理剂对面料进行抗菌整理,再使用8%的C6水剂进行拒水处理,之后使用5%的聚酰胺柔软剂进行柔软处理,通过反应性聚氨酯,点状贴合厚度为15μm、孔径为15μm的聚乙烯膜,制得面料C。
实施例4
从市场上购得标准医用防护服面料,作为对照面料D。
一、面料断裂强力测试
本测试依据的标准是GB/T3923.1-1997织物拉伸性能第1部分:断裂强力的测定,采用的是条样法即试样整个宽度被夹持器夹持的织物拉伸试验。
使用的测试仪器为:4469型INSTRON万能强力仪。
从面料A、B、C、D上裁取多组样品,分别使用含氯消毒液洗涤0、1、4、 7、10、11次后,干燥处理后,按照GB/T3923.1的要求,将每块样品置于强力仪的夹持钳中,开启仪器,等速拉伸直至断脱,记录断裂强力,所得数据见图2。
二、电荷面密度测试
本测试根据GB/T12703-1991纺织品静电测试方法进行电荷面密度的测试,将试样经过摩擦装置摩擦后投入法拉第筒,从而测量样品的电荷面密度。使用的仪器为滚筒式摩擦机,结果显示仪器为DL-1型数字电量表。
从面料A、B、C、D上裁取多组样品,分别使用含氯消毒液洗涤0、1、4、 7、10、11次后,干燥处理后,将样品的缝制成套状,在温度为20℃、相对湿度为38%的环境下放置24小时。将绝缘棒插入缝好的套内,放置于垫板上,双手持缠有标准布的摩擦棒两端,由前端向体侧一方摩擦样品,约1s摩擦一次,连续五次。然后握住绝缘棒的一端,在摩擦装置上使棒与垫板保持平行地由垫板上揭离,并迅速投入摩擦机内,从数字电量表上读取实际测出的电荷量,除以样品摩擦面积,得电荷面密度,所得数据见图3。
三、拒水试验
拒水试验用于衡量织物表面不被水沾湿的能力,GB/T4745-1997是针对该性能的测试方法。其原理是将蒸馏水或去离子水注入漏斗喷淋试样,观察表面沾湿情况,然后按评级样照和评级标准文字评定拒水等级。
从面料A、B、C、D上裁取多组样品,分别使用含氯消毒液洗涤0、1、4、 7、10、11次后,干燥处理后,在空气温度为20℃、相对湿度为65%的条件下放置24小时。夹紧试样,放在支架上,将250mL水迅速平稳地注入漏斗,将试样与夹持器同时取下,敲打两次后观察其湿润程度,确定拒水等级,所得结果见图4。级别越高,材料表面越不容易沾水。
由测试数据可知,虽然市售面料也具有相当的断裂强力、电荷面密度及拒水等级,但是市售面料在洗涤过后,其性能数据大幅下降,难以满足防护服的使用需求;反观本发明提供的实施例,在多次洗涤后仍然保持有较大的断裂强力、更低的电荷面密度和更优的拒水等级,至少可以反复使用十次,大大降低了医疗成本。
本领域的技术人员可以明确,在不脱离本发明的总体精神以及构思的情形下,可以做出对于以上实施例的各种变型。其均落入本发明的保护范围之内。本发明的保护方案以本发明所附的权利要求书为准。
Claims (9)
1.一种医用防护服面料,其特征在于,包括通过粘结点粘合的面层和内层;所述面层由导电纤维与涤纶长丝织造,并经过抗菌、拒水和柔软处理,其厚度为0.2-0.6μm;所述内层为高分子聚合膜组成,其厚度为5-15μm。
2.根据权利要求1所述的医用防护服面料,其特征在于,所述面层由经纱和纬纱机织而成,所述经纱为涤纶长丝,所述纬纱包括涤纶长丝和导电纤维,所述导电纤维每间隔1-5cm设置一根。
3.根据权利要求2所述的医用防护服面料,其特征在于,所述导电纤维为碳纤维。
4.根据权利要求1所述的医用防护服面料,其特征在于,抗菌处理所采用的抗菌剂为纳米银抗菌剂,拒水处理所采用的抗水剂是C6拒水剂、C8拒水剂或有机硅拒水剂中的任意一种,柔软处理所采用的柔软剂为聚酰胺型柔软剂。
5.根据权利要求4所述的医用防护服面料,其特征在于,所述抗菌剂、拒水剂和柔软剂均采用溶于溶剂的方式制备而成。
6.根据权利要求5所述的医用防护服面料,其特征在于,所述溶剂为水,所述抗菌剂与溶剂的质量比为1%-4%,所述拒水剂与溶剂的质量比为2%-8%,所述柔软剂与溶剂的质量比为1%-5%。
7.根据权利要求1所述的医用防护服面料,其特征在于,所述高分子聚合膜为聚四氟乙烯膜、聚氨酯膜或聚乙烯膜中的任意一种。
8.根据权利要求7所述的医用防护服面料,其特征在于,所述高分子聚合膜具有0.1-15μm的透气微孔。
9.根据权利要求1所述的医用防护服面料,其特征在于,所述面层和内层通过反应性聚氨酯进行点状粘合。
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