CN110273210A - 一种具有抗菌功能涤纶包芯纱及制备方法 - Google Patents
一种具有抗菌功能涤纶包芯纱及制备方法 Download PDFInfo
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Abstract
本发明公开了一种抗菌涤纶包芯纱,由芯纱和包覆纱组成,芯纱为壳聚糖载银涤纶纱,包覆纱为氨纶丝。本发明还公开了一种抗菌涤纶包芯纱的制备方法。本发明采用壳聚糖和硝酸银在紫外光的作用下对涤纶纱进行镀银改性,赋予本发明的包芯纱具有杀菌功能;同时壳聚糖可升了涤纶纱线断裂强度和断裂伸长率。由本发明的包芯纱制备而成的面料,既舒适、环保、安全又能杀菌,极大的改善了面料性能。
Description
技术领域
本发明属于功能性服装面料技术领域,特别涉及一种具有抗菌功能涤纶包芯纱及制备方法。
背景技术
涤纶纤维作为应用最广泛的化学纤维,其具有良好的成纤性能和机械性能,强度高、耐光、耐热和耐酸碱性好,具有良好的加工性和易纺性,可纯纺、混纺和交织。涤纶面料耐洗耐磨、免烫抗皱,在服装、家纺、装饰和产品用等领域被广泛应用。然而,涤纶纤维易被脂肪性油污沾污,滋生细菌缺点,因此大大制约了涤纶纤维的应用与发展。
银具有良好的广谱杀菌作用,其普遍用于临床和日常生活用品中的纳米粒子。跟离子形式存在的银相比来说,纳米银尺寸小、比表面积大,与微生物相互接触作用的几率就会增大,抗菌效果就会更强。
近年来,人们对服装面料的舒适性、健康性、安全性和环保性等要求越来越高,对安全高效抗菌服饰的功能需求越来越多;在生活中,人们不可避免的接触到各种各样的细菌、真菌等微生物,这些微生物在合适的外界条件下,会迅速繁殖,并通过接触等方式传播疾病,影响人们的身体健康和正常的工作、学习和生活。进一步研发抗菌涤纶功能性织物,对减少病菌对人类的侵害具有积极的意义,为提高涤纶纤维的穿着舒适性,提高涤纶纤维的应用附加值,通常是对涤纶纤维进行化学或物理方面的改进,进而赋予涤纶纤维较高的抗菌性能。因此,开发一种具备环保的、安全的、具备优良抗菌性能的包芯纱具有重要的意义。
发明内容
为实现上述目的,本发明提供一种具有抗菌功能涤纶包芯纱及制备方法,
为了达到上述目的,本发明是通过以下技术方案实现:
一种抗菌涤纶包芯纱,由芯纱和包覆纱组成,所述芯纱为壳聚糖载银涤纶纱,所述包覆纱为氨纶丝。
进一步地,所述芯纱采用20~40dtex的壳聚糖载银涤纶纱,所述包覆纱的线密度为15~25dtex。
进一步地,所述抗菌涤纶包芯纱中,氨纶丝的重量百分比为60%~80%,壳聚糖载银涤纶纱的质量百分比为20%~40%。
一种抗菌涤纶包芯纱的制备方法,按照下述步骤进行:
步骤1:在搅拌下将壳聚糖加入到有机溶剂中,待壳聚糖完全溶解后,加入硝酸银溶液,在避光条件下搅拌至均匀分散,经紫外线照射获得壳聚糖载银抗菌整理剂;
步骤2:将涤纶纱浸入所述壳聚糖载银抗菌整理剂中,浸渍温度为25℃,浸渍时间为1~3h,二浸二压,得到整理后的壳聚糖载银涤纶纱;
步骤4:将整理后的壳聚糖载银涤纶纱在真空干燥箱内50℃~60℃温度下烘烤0.5~1h,得到烘干的壳聚糖载银涤纶纱;
步骤5:以壳聚糖载银涤纶纱为芯纱,以氨纶丝包裹在外层,形成包芯纱。
进一步地,所述步骤3中的烘干的壳聚糖载银涤纶纱相较于所述步骤2中的涤纶纱的增重率为4%~14%。增重率的计算,用处理后样品干质量减去处理前样品干质量除以处理前样品干质量再乘以百分之百即可计算出增重率。
进一步地,所述步骤1中有机溶剂为2%的乙酸溶液。
进一步地,所述步骤1中壳聚糖用量为2%~5%。
进一步地,所述步骤1中硝酸银溶液的用量为2%~4%。
本发明的有益效果是:
本发明的包芯纱以氨纶丝包覆壳聚糖载银涤纶纱组成,采用壳聚糖和硝酸银在紫外光的作用下对涤纶纱进行镀银改性,赋予本发明的包芯纱具有杀菌功能;壳聚糖是无毒无害的材料,因此环保、安全,同时壳聚糖在一定范围内提升了涤纶纱线断裂强度和断裂伸长率。由本发明包芯纱制备而成的面料能显著的杀灭大肠杆菌和金黄色葡萄球菌,既舒适、环保、安全又能抗菌,极大的改善了面料性能。
具体实施方式
为使本发明的目的、特征、优点能够更加的明显和易懂,下面对本发明实施例中的技术方案进行清楚、完整地描述,显然,下面所描述的实施例仅仅是本发明一部分实施例,而非全部实施例。基于本发明中的实施例,本领域的技术人员所获得的所有其他实施例,都属于本发明保护的范围。
实施例1
一种抗菌涤纶包芯纱,由芯纱和包覆纱组成,所述芯纱采用25dtex的壳聚糖载银涤纶纱,所述包覆纱采用线密度为18dtex的氨纶丝。
一种抗菌涤纶包芯纱的制备方法,按照下述步骤进行:
步骤1:在搅拌下将用量为2%的壳聚糖加入到乙酸溶液中,待壳聚糖完全溶解后,加入用量为2%的硝酸银溶液,在避光条件下搅拌0.5h至均匀分散,经紫外线照射1h获得壳聚糖载银抗菌整理剂;
步骤2:将涤纶纱浸入所述壳聚糖载银抗菌整理剂中,浸渍温度为25℃,浸渍时间为1h,二浸二压得到整理后的壳聚糖载银涤纶纱;
步骤4:将整理后的壳聚糖载银涤纶纱在真空红外干燥箱内50℃温度下烘烤1h,得到烘干的壳聚糖载银涤纶纱;
步骤5:以壳聚糖载银涤纶纱为芯纱,以氨纶丝包裹在外层,形成包芯纱。
涤纶纱经过整理、烘干后,所制备的壳聚糖载银涤纶纱增重率为4.25%。
实施例2
一种抗菌涤纶包芯纱,由芯纱和包覆纱组成,所述芯纱采用30dtex的壳聚糖载银涤纶纱,所述包覆纱采用线密度为20dtex的氨纶丝。
一种抗菌涤纶包芯纱的制备方法,按照下述步骤进行:
步骤1:在搅拌下将用量为3%的壳聚糖加入到乙酸溶液中,待壳聚糖完全溶解后,加入用量为2.5%的硝酸银溶液,在避光条件下搅拌0.5h至均匀分散,经紫外线照射1h获得壳聚糖载银抗菌整理剂;
步骤2:将涤纶纱浸入所述壳聚糖载银抗菌整理剂中,浸渍温度为25℃,浸渍时间为0.6h,二浸二压得到整理后的壳聚糖载银涤纶纱;
步骤4:将整理后的壳聚糖载银涤纶纱在真空红外干燥箱内55℃温度下烘烤1h,得到烘干的壳聚糖载银涤纶纱;
步骤5:以壳聚糖载银涤纶纱为芯纱,以氨纶丝包裹在外层,形成包芯纱。
涤纶纱经过整理、烘干后,所制备的壳聚糖载银涤纶纱增重率为5.82%。
实施例3
一种抗菌涤纶包芯纱,由芯纱和包覆纱组成,所述芯纱采用35dtex的壳聚糖载银涤纶纱,所述包覆纱采用线密度为20dtex的氨纶丝。
一种抗菌涤纶包芯纱的制备方法,按照下述步骤进行:
步骤1:在搅拌下将用量为4%的壳聚糖加入到乙酸溶液中,待壳聚糖完全溶解后,加入用量为3%的硝酸银溶液,在避光条件下搅拌0.5h至均匀分散,经紫外线照射1h获得壳聚糖载银抗菌整理剂;
步骤2:将涤纶纱浸入所述壳聚糖载银抗菌整理剂中,浸渍温度为25℃,浸渍时间为1h,二浸二压得到整理后的壳聚糖载银涤纶纱;
步骤4:将整理后的壳聚糖载银涤纶纱在真空红外干燥箱内60℃温度下烘烤1h,得到烘干的壳聚糖载银涤纶纱;
步骤5:以壳聚糖载银涤纶纱为芯纱,以氨纶丝包裹在外层,形成包芯纱。
涤纶纱经过整理、烘干后,所制备的壳聚糖载银涤纶纱增重率为6.74%。
实施例4
一种抗菌涤纶包芯纱,由芯纱和包覆纱组成,所述芯纱采用30dtex的壳聚糖载银涤纶纱,所述包覆纱采用线密度为20dtex的氨纶丝。
一种抗菌涤纶包芯纱的制备方法,按照下述步骤进行:
步骤1:在搅拌下将用量为5%的壳聚糖加入到乙酸溶液中,待壳聚糖完全溶解后,加入用量为4%的硝酸银溶液,在避光条件下搅拌0.5h至均匀分散,经紫外线照射1h获得壳聚糖载银抗菌整理剂;
步骤2:将涤纶纱浸入所述壳聚糖载银抗菌整理剂中,浸渍温度为25℃,浸渍时间为1h,二浸二压得到整理后的壳聚糖载银涤纶纱;
步骤4:将整理后的壳聚糖载银涤纶纱在真空红外干燥箱内55℃温度下烘烤1h,得到烘干的壳聚糖载银涤纶纱;
步骤5:以壳聚糖载银涤纶纱为芯纱,以氨纶丝包裹在外层,形成包芯纱。
涤纶纱经过整理、烘干后,所制备的壳聚糖载银涤纶纱增重率为8.16%。
硝酸银用量对抗菌性能的影响:随硝酸银用量的增加,抑菌圈直径也相应增大,纱线中负载的银含量越来越高,纱线对大肠杆菌和金黄色葡萄球菌的抗菌性越好;相同含量的载银涤纶纱线对大肠杆菌的抑菌圈直径大于金黄色葡萄球菌的抑菌圈直径,也就是说载银纱线对大肠杆菌的抗菌效果要优于金黄色葡萄球菌。
壳聚糖用量对抗菌纱线力学性能的影响:涤纶纱线在生产过程中会使得内部存在一定的空隙,在对纱线进行涂覆的时候,部分涂层液会填充纱线内部的空隙;另一方面是由于壳聚糖溶液在低用量下就有很高的黏度,干燥后由于形成分子内和分子间氢键而易于成膜,所以可以利用壳聚糖的溶解特性将其渗透到纱线内部的同时也涂覆在纤维表面,这样既能增加纤维的拉伸强度,也能改善涤纶纱线的表面亲水性,但是,随着壳聚糖用量的增大,涂层液在纤维表面过多形成较厚的膜,由于壳聚糖本身比较脆,相对于涤纶纤维来说,壳聚糖膜的弹性模量和伸长率均比较小,在外力作用下很容易发生脆断,同时纱线的断裂伸长要远远大于壳聚糖膜,所以在横截面积增大的情况下,受力的主体还是纱线本身,故纱线的断裂强度会降低;也因为壳聚糖膜的增厚,阻碍了纱线的伸长,故伸长率也会降低。
上述虽然对本发明的具体实施方式进行了描述,但并非对本发明保护范围的限制,所属领域技术人员应该明白,在本发明的技术方案的基础上,本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围内。
Claims (7)
1.一种抗菌涤纶包芯纱,由芯纱和包覆纱组成,其特征在于:所述芯纱为壳聚糖载银涤纶纱,所述包覆纱为氨纶丝。
2.根据权利要求1所述的抗菌涤纶包芯纱,其特征在于:所述芯纱采用20~40dtex的壳聚糖载银涤纶纱,所述包覆纱的线密度为15~25dtex。
3.根据权利要求1所述的抗菌涤纶包芯纱,其特征在于:所述抗菌涤纶包芯纱中,氨纶丝的重量百分比为60%~80%,壳聚糖载银涤纶纱的质量百分比为20%~40%。
4.一种抗菌涤纶包芯纱的制备方法,其特征在于:按照下述步骤进行:
步骤1:在搅拌下将壳聚糖加入到有机溶剂中,待壳聚糖完全溶解后,加入硝酸银溶液,在避光条件下搅拌至均匀分散,经紫外线照射获得壳聚糖载银抗菌整理剂;
步骤2:将涤纶纱浸入所述壳聚糖载银抗菌整理剂中,浸渍温度为25℃,浸渍时间为1~3h,二浸二压,得到整理后的壳聚糖载银涤纶纱;
步骤4:将整理后的壳聚糖载银涤纶纱在真空干燥箱内50℃~60℃温度下烘烤0.5~1h,得到烘干的壳聚糖载银涤纶纱;
步骤5:以壳聚糖载银涤纶纱为芯纱,以氨纶丝包裹在外层,形成包芯纱。
5.根据权利要求1所述的抗菌涤纶包芯纱的制备方法,其特征在于:所述步骤3中的烘干的壳聚糖载银涤纶纱相较于所述步骤2中的涤纶纱的增重率为4%~14%。
6.根据权利要求1所述的抗菌涤纶包芯纱的制备方法,其特征在于:所述步骤1中壳聚糖用量为2%~5%。
7.根据权利要求1所述的抗菌涤纶包芯纱的制备方法,其特征在于:所述步骤1中硝酸银溶液的用量为2%~4%。
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