CN115302874A - 一种含银离子改性纤维的混纺抗菌面料 - Google Patents
一种含银离子改性纤维的混纺抗菌面料 Download PDFInfo
- Publication number
- CN115302874A CN115302874A CN202210710738.1A CN202210710738A CN115302874A CN 115302874 A CN115302874 A CN 115302874A CN 202210710738 A CN202210710738 A CN 202210710738A CN 115302874 A CN115302874 A CN 115302874A
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- CN
- China
- Prior art keywords
- fiber
- layer
- fabric
- textile layer
- silver ion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
本发明公开了一种含银离子改性纤维的混纺抗菌面料,该抗菌面料按质量份数计包括以下组分:银离子改性聚酯纤维:10‑20%,织物复合材料:10‑13%,德绒:15‑20%,余量为常规纤维,以上各组分之和为100%,常规纤维为真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔;该抗菌面料由第一纺织层、第二纺织层、第三纺织层及第四纺织层复合而成,第一纺织层为织物复合材料层,第二纺织层为德绒层,第三纺织层为银离子改性聚酯纤维层,第四纺织层由常规纤维混纺而成;该面料抗菌效果持久,机械性能好,舒适性好,还具有一定的防紫外性能。
Description
技术领域
本发明涉及一种抗菌面料,具体涉及一种含银离子改性纤维的混纺抗菌面料。
背景技术
随着生活质量的提高,越来越多的人意识到健康的重要性,因此人们对服装的要求也越来越高,譬如说服装自带抗菌作用,而普通的面料为单层的织物,功能单一,不具备抗菌的能。
抗菌面料具有良好的安全性,它能防止细菌再生和繁殖,保持织物清洁,抗菌面料是一种特殊功能性面料,是经过抗菌整理或含有抗菌纤维,能够抑制织物上的细菌、真菌生长、繁殖或使其失去活性的一类面料。合格的抗菌面料在抗菌的同时应确保对人体健康无副作用,不对人体皮肤正常菌群产生影响,抗菌面料近几年被广泛运用到纺织品、内衣内裤、户外运动等方面,它具有良好的抗菌作用,在一定程度上避免细菌的繁殖,从而减低被有害微生物侵蚀伤害的风险。再者,能消除因细菌而产生的异味,使织物保持长时间的洁净和干爽,因此,抗菌面料的需求越来越大。
发明内容
本发明所要解决的技术问题是,针对以上现有技术存在的缺点,提出一种含银离子改性纤维的混纺抗菌面料,该面料抗菌效果持久,机械性能好,舒适性好,还具有一定的防紫外性能。
本发明解决以上技术问题的技术方案是:
一种含银离子改性纤维的混纺抗菌面料,该抗菌面料按质量份数计包括以下组分:银离子改性聚酯纤维:10-20%,织物复合材料:10-13%,德绒:15-20%,余量为常规纤维,以上各组分之和为100%,其中:
常规纤维为真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔;
该抗菌面料由第一纺织层、第二纺织层、第三纺织层及第四纺织层复合而成,第一纺织层为织物复合材料层,第二纺织层为德绒层,第三纺织层为银离子改性聚酯纤维层,第四纺织层由常规纤维混纺而成。
本发明进一步限定的技术方案为:
前述含银离子改性纤维的混纺抗菌面料中,银离子改性聚酯纤维的线密度为3.8-4.0dtex,断裂强度为4.7-4.9cN·dtex-1,回潮率4.3-4.5%。
前述含银离子改性纤维的混纺抗菌面料中,德绒的线密度为0.9-1.0dtex,断裂强度为1.37-1.42cN·dtex-1,回潮率2.05-2.10%。
前述含银离子改性纤维的混纺抗菌面料中,常规纤维按质量份数计各原料为:真丝:10-15份,竹纤维:10-13份,莫代尔纤维:15-20份,牛奶蛋白纤维:10-12份,超细旦木代尔:8-11份。
前述含银离子改性纤维的混纺抗菌面料中,织物复合材料的制备方法如下:
(1)织物预处理
将棉织物在使用前放入十二烷基磺酸钠水溶液中,超声1h,去离子水洗涤,再使用无水乙醇超声洗涤30min后,用去离子水洗涤,在80℃的烘箱里干燥1h得空白棉织物,放塑封袋里备用;
(2)溶胶液制备
取硫脲和尿素溶解到无水乙醇中,再加入钛酸丁酯,用6wt%稀硝酸调节其pH为3~4,搅拌均匀,然后将去离子水缓慢滴加到上述溶液中,并继续搅拌20-23min,静置0.8-1h,得到湿凝胶;
(3)负载制得织物复合材料
将步骤(2)得到的溶胶液继续搅拌,待出现丁达尔现象后,将步骤(1)准备好的棉织物浸渍到溶胶液中,浸渍5-7min,将棉织物取出放在干净的玻璃板上,再用同样的玻璃板压上,并在板上施加1kg的重量,1-3min后取出,放在玻璃皿上进行烘干,得到织物复合材料。
技术效果,棉织物负载掺杂Ti O2光催化抗菌机理如下:棉织物上负载的S-N-TiO2光催化材料与细菌悬液混合振荡,在一定的外界条件下(热、光等),释放带负电的电子e-,同时产生带正电的空穴h+;其次,丰富的空穴在水和空气的环境中发生作用,产生了高活性和强氧化能力的过氧离子自由基(·O2-)和羟基自由基(·HO);这些活泼的自由基能与细胞膜上的磷脂分子与膜蛋白发生作用,从而使膜的流动性变差。由于膜的流动性与细胞的生命活动如营养运输、能量代谢等有着至关紧要的联系。当膜的流动性降低,其传递营养物质的功能也降低,由于不能从外界吸收充足的营养物质,细菌的生长就会受到抑制;再者,细胞膜流动性降低的同时细胞膜的粘度就会相应的增加,而细胞膜上又负载着许多活性酶,膜粘度的增加会使酶的活性降低甚至失活,从而引起细胞的代谢功能发生紊乱,直接影响了细胞的增殖;如果这些自由基在细胞膜的周围达到一定浓度,最终会使细胞死亡,从而达到杀菌的目的,为改善所制Ag-N-TiO2纳米抗菌剂与棉织物的结合牢度,以及柔性纺织品不耐高温的问题,采用快速溶胶-凝胶法整理棉织物,使得所制纳米溶胶短时间内在棉纤维表面形成凝胶膜,并通过热处理,二者以共价键或范德华力牢固结合,改善了织物的抗菌耐久性。
前述含银离子改性纤维的混纺抗菌面料中,步骤(3)进行烘干时采用低温烘干的方式进行,具体为:
烘干温度为30℃-40℃,且烘干过程中通过风扇保证气流快速流动,烘干后织物复合材料含水量为32-36%时停止烘干。
技术效果,低温烘干不损坏织物,保证织物的质感,同时织物保证一定的含水量防止过烘干,提高生产率,可省掉重新给湿工序,又提高了产品质量。
前述含银离子改性纤维的混纺抗菌面料中,该抗菌面料按以下步骤制备:
(1)将纳米级银离子与聚酯切片共混纺丝制得银离子改性聚酯纤维,将银离子改性聚酯纤维纺丝,再制成银离子改性聚酯纤维层得到第三纺织层;
(2)将常规纤维即真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔先进行初步松解获得混合均匀的纤维,再进行精开松,并对常规纤维进行梳理,形成单层纤维网,将单层纤维网通过铺网机织成多层纤维网,多层纤维网通过缝制制成第四纺织层;
(3)按顺利将第一纺织层织物复合材料层、第二纺织层德绒层、第三纺织层及第四纺织层叠放好,然后采用压合装置对其进行压合处理,静置后,取下并在80-90℃下热处理,即可得到抗菌面料。
前述含银离子改性纤维的混纺抗菌面料中,常规纤维中的真丝在使用前进行处理,具体为:
(1)用AgNO3溶液和氨水制备银氨溶液;
(2)将芦荟叶片、仙人掌洗净去斑并榨成汁液混合后,加入去离子水,在电炉上加热至沸腾,冷却后过滤,取滤液备用;
(3)将步骤(1)的银氨溶液加入到步骤(2)芦荟、仙人掌水浸提取液中,常温下充分反应24h后,得到芦荟仙人掌纳米银胶体溶液;
(4)将桑蚕丝布样浸于胶体溶液中,浴比1:50,在40-60℃下于振荡水浴锅中振荡40-50min,然后取出、清洗、晾干,得到处理后的真丝。
技术效果,本发明采用天然植物芦荟和仙人掌对真丝绸进行功能化改性,以提高真丝绸织物的防紫外性能和抗菌性能,同时不损伤真丝绸原有的优异服用性能,为采用天然植物提取物对纺织面料进行功能化性整理,采用芦荟仙人掌纳米银胶体溶液对真丝绸进行整理,进一步提高了真丝绸的抗菌性能,整理后真丝绸对金黄色葡萄球菌和大肠杆菌的抑菌率分别达到99.7%和99.8%。
前述含银离子改性纤维的混纺抗菌面料中,芦荟仙人掌纳米银胶体溶液中银含量控制在3.6-3.8μg/mL。
本发明的有益效果是:
本发明的常规纤维为真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔,其中竹纤维表面有许多凹槽、裂纹使纤维具有良好的吸湿放湿性,纤维中存在抗菌物质“竹醌”,被誉为“天然抗菌纤维”;真丝的舒适性强提高人体的舒适感;银离子改性聚酯纤维的抗菌效果好,且性能持久;德绒采用现有技术中德国Bayer(拜耳)公司利用干法纺丝技术纺制出了Dralon(德绒),德绒具有狗骨形异形截面,使单丝之间存在较大的毛细管区,水分芯吸能力好,具有手感柔软、抗起毛起球性好、蓬松度高等优点;超细旦木代尔誉为第二肌肤,使用德绒与超细旦木代尔,来满足纱线的柔肤舒适性;将莫代尔纤维、真丝、超细旦木代尔及竹纤维和牛奶蛋白纤维进行混纺,减少了牛奶蛋白纤维纺纱过程中产生的静电现象,进而减少化学纤维牵伸过程中绕罗拉和绕皮辊的现象,能改善纱线的强度,提高纱线的织造性能。
本发明采用多种纤维混纺与多层纺织层进行压合制备面料,不仅使混纺纱线具有柔软舒适、轻薄透气、抗菌除臭等性能,还使织物悬垂性好、丰满度高并具有良好的光泽,该面料在具有吸湿、透气、舒爽的前提下还具有良好的防紫外线、抗菌的功效,生产工艺简单易行。
本发明面料组分中,银离子改性聚酯纤维含量只有10-20%,银离子改性聚酯纤维的成本较高,以10-20%的比例制作面料时即可充分发挥其功能性,在控制成本的时候保证抗菌性。
具体实施方式
实施例1
本实施例提供一种含银离子改性纤维的混纺抗菌面料,该抗菌面料按质量份数计包括以下组分:银离子改性聚酯纤维:10%,织物复合材料:13%,德绒:15%,余量为常规纤维,以上各组分之和为100%,其中:
常规纤维为真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔;
该抗菌面料由第一纺织层、第二纺织层、第三纺织层及第四纺织层复合而成,第一纺织层为织物复合材料层为最外层,第二纺织层为德绒层,第三纺织层为银离子改性聚酯纤维层,第四纺织层由常规纤维混纺而成,最里层贴近皮肤层。
在本实施例中,银离子改性聚酯纤维的线密度为3.9dtex,断裂强度为4.8cN·dtex-1,回潮率4.4%。
在本实施例中,德绒的线密度为1.0dtex,断裂强度为1.39cN·dtex-1,回潮率2.08%。
在本实施例中,常规纤维按质量份数计各原料为:真丝:12份,竹纤维:12份,莫代尔纤维:18份,牛奶蛋白纤维:11份,超细旦木代尔:10份。
上述织物复合材料的制备方法如下:
(1)织物预处理
将棉织物在使用前放入十二烷基磺酸钠水溶液中(2wt%,500ml),超声1h,去离子水洗涤(100ml,2次),再使用无水乙醇(100ml)超声洗涤30min后,用去离子水洗涤(100ml,2次),在80℃的烘箱里干燥1h得空白棉织物,放塑封袋里备用;
(2)溶胶液制备
取硫脲和尿素溶解到无水乙醇中,再加入钛酸丁酯,用6wt%稀硝酸调节其pH为3,搅拌均匀,然后将去离子水缓慢滴加到上述溶液中,并继续搅拌22min,静置0.9h,得到湿凝胶;
(3)负载制得织物复合材料
将步骤(2)得到的溶胶液继续搅拌,待出现丁达尔现象后,将步骤(1)准备好的棉织物浸渍到溶胶液中,浸渍6min,将棉织物取出放在干净的玻璃板上,再用同样的玻璃板压上,并在板上施加1kg的重量,2min后取出,放在玻璃皿上进行烘干,得到织物复合材料;
进行烘干时采用低温烘干的方式进行,具体为:
烘干温度为35℃,且烘干过程中通过风扇保证气流快速流动,烘干后织物复合材料含水量为34%时停止烘干。
上述抗菌面料按以下步骤制备:
(1)按现有技术将纳米级银离子与聚酯切片共混纺丝制得银离子改性聚酯纤维,将银离子改性聚酯纤维纺丝,再制成银离子改性聚酯纤维层得到第三纺织层;
(2)将常规纤维即真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔先进行初步松解获得混合均匀的纤维,再进行精开松,并对常规纤维进行梳理,形成单层纤维网,将单层纤维网铺网机织成多层纤维网,多层纤维网通过缝制制成第四纺织层;
(3)按顺利将第一纺织层织物复合材料层、第二纺织层德绒层、第三纺织层及第四纺织层叠放好,然后采用压合装置对其进行压合处理,静置后,取下并在85℃下热处理,即可得到抗菌面料。
在本实施例中,常规纤维中的真丝在使用前进行处理,具体为:
(1)用AgNO3溶液和氨水制备银氨溶液,氨水不过量;
(2)将芦荟叶片、仙人掌洗净去斑并榨成汁液混合后,加入去离子水,在电炉上加热至沸腾,冷却后过滤,取滤液备用;
(3)将步骤(1)的银氨溶液加入到步骤(2)芦荟、仙人掌水浸提取液中,常温下充分反应24h后,得到芦荟仙人掌纳米银胶体溶液,芦荟仙人掌纳米银胶体溶液中银含量控制在3.7μg/mL;
(4)将桑蚕丝布样浸于胶体溶液中,浴比1:50,在50℃下于振荡水浴锅中振荡45min,然后取出、清洗、晾干,得到处理后的真丝。
将本实施例的抗菌面料纺织城抗菌纱布,将抗菌纱布洗涤100次后对其抗菌性采用现有技术进行测定,具体数据见表1所示;
表1实施例中抗菌纱布的抑菌数据
由表1可见在有光和避光条件下,抗菌纱布对大肠杆菌、白色念珠菌、金黄色普通球菌菌有优良的抗菌性能。
实施例2
本实施例提供一种含银离子改性纤维的混纺抗菌面料,该抗菌面料按质量份数计包括以下组分:银离子改性聚酯纤维:20%,织物复合材料:10%,德绒:18%,余量为常规纤维,以上各组分之和为100%,其中:
常规纤维为真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔;
该抗菌面料由第一纺织层、第二纺织层、第三纺织层及第四纺织层复合而成,第一纺织层为织物复合材料层为最外层,第二纺织层为德绒层,第三纺织层为银离子改性聚酯纤维层,第四纺织层由常规纤维混纺而成,最里层贴近皮肤层。
在本实施例中,银离子改性聚酯纤维的线密度为3.8-4.0dtex,断裂强度为4.9cN·dtex-1,回潮率4.5%。
在本实施例中,德绒的线密度为1.0dtex,断裂强度为1.42cN·dtex-1,回潮率2.10%。
在本实施例中,常规纤维按质量份数计各原料为:真丝:15份,竹纤维:13份,莫代尔纤维:20份,牛奶蛋白纤维:12份,超细旦木代尔:11份。
上述织物复合材料的制备方法如下:
(1)织物预处理
将棉织物在使用前放入十二烷基磺酸钠水溶液中(2wt%,500ml),超声1h,去离子水洗涤(100ml,3次),再使用无水乙醇(100ml)超声洗涤30min后,用去离子水洗涤(100ml,3次),在80℃的烘箱里干燥1h得空白棉织物,放塑封袋里备用;
(2)溶胶液制备
取硫脲和尿素溶解到无水乙醇中,再加入钛酸丁酯,用6wt%稀硝酸调节其pH为4,搅拌均匀,然后将去离子水缓慢滴加到上述溶液中,并继续搅拌23min,静置1h,得到湿凝胶;
(3)负载制得织物复合材料
将步骤(2)得到的溶胶液继续搅拌,待出现丁达尔现象后,将步骤(1)准备好的棉织物浸渍到溶胶液中,浸渍7min,将棉织物取出放在干净的玻璃板上,再用同样的玻璃板压上,并在板上施加1kg的重量,3min后取出,放在玻璃皿上进行烘干,得到织物复合材料;
进行烘干时采用低温烘干的方式进行,具体为:
烘干温度为40℃,且烘干过程中通过风扇保证气流快速流动,烘干后织物复合材料含水量为36%时停止烘干。
上述抗菌面料按以下步骤制备:
(1)按现有技术将纳米级银离子与聚酯切片共混纺丝制得银离子改性聚酯纤维,将银离子改性聚酯纤维纺丝,再制成银离子改性聚酯纤维层得到第三纺织层;
(2)将常规纤维即真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔先进行初步松解获得混合均匀的纤维,再进行精开松,并对常规纤维进行梳理,形成单层纤维网,将单层纤维网通过铺网机织成多层纤维网,多层纤维网通过缝制制成第四纺织层;
(3)按顺利将第一纺织层织物复合材料层、第二纺织层德绒层、第三纺织层及第四纺织层叠放好,然后采用压合装置对其进行压合处理,静置后,取下并在90℃下热处理,即可得到抗菌面料。
在本实施例中,常规纤维中的真丝在使用前进行处理,具体为:
(1)用AgNO3溶液和氨水制备银氨溶液,氨水不过量;
(2)将芦荟叶片、仙人掌洗净去斑并榨成汁液混合后,加入去离子水,在电炉上加热至沸腾,冷却后过滤,取滤液备用;
(3)将步骤(1)的银氨溶液加入到步骤(2)芦荟、仙人掌水浸提取液中,常温下充分反应24h后,得到芦荟仙人掌纳米银胶体溶液,芦荟仙人掌纳米银胶体溶液中银含量控制在3.8μg/mL;
(4)将桑蚕丝布样浸于胶体溶液中,浴比1:50,在60℃下于振荡水浴锅中振荡50min,然后取出、清洗、晾干,得到处理后的真丝。
将本实施例的抗菌面料纺织城抗菌纱布,将抗菌纱布洗涤100次后对其抗菌性采用现有技术进行测定,具体数据见表2所示;
表2实施例中抗菌纱布的抑菌数据
由表2可见在有光和避光条件下,抗菌纱布对大肠杆菌、白色念珠菌、金黄色普通球菌菌有优良的抗菌性能。
实施例3
本实施例提供一种含银离子改性纤维的混纺抗菌面料,该抗菌面料按质量份数计包括以下组分:银离子改性聚酯纤维:15%,织物复合材料:11%,德绒:20%,余量为常规纤维,以上各组分之和为100%,其中:
常规纤维为真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔;
该抗菌面料由第一纺织层、第二纺织层、第三纺织层及第四纺织层复合而成,第一纺织层为织物复合材料层为最外层,第二纺织层为德绒层,第三纺织层为银离子改性聚酯纤维层,第四纺织层由常规纤维混纺而成,最里层贴近皮肤层。
在本实施例中,银离子改性聚酯纤维的线密度为3.8dtex,断裂强度为4.7cN·dtex-1,回潮率4.3%。
在本实施例中,德绒的线密度为0.9dtex,断裂强度为1.37cN·dtex-1,回潮率2.05%。
在本实施例中,常规纤维按质量份数计各原料为:真丝:10份,竹纤维:10份,莫代尔纤维:15份,牛奶蛋白纤维:10份,超细旦木代尔:8份。
上述织物复合材料的制备方法如下:
(1)织物预处理
将棉织物在使用前放入十二烷基磺酸钠水溶液中(2wt%,500ml),超声1h,去离子水洗涤(100ml,4次),再使用无水乙醇(100ml)超声洗涤30min后,用去离子水洗涤(100ml,4次),在80℃的烘箱里干燥1h得空白棉织物,放塑封袋里备用;
(2)溶胶液制备
取硫脲和尿素溶解到无水乙醇中,再加入钛酸丁酯,用6wt%稀硝酸调节其pH为3,搅拌均匀,然后将去离子水缓慢滴加到上述溶液中,并继续搅拌20min,静置0.8h,得到湿凝胶;
(3)负载制得织物复合材料
将步骤(2)得到的溶胶液继续搅拌,待出现丁达尔现象后,将步骤(1)准备好的棉织物浸渍到溶胶液中,浸渍5min,将棉织物取出放在干净的玻璃板上,再用同样的玻璃板压上,并在板上施加1kg的重量,1min后取出,放在玻璃皿上进行烘干,得到织物复合材料;
进行烘干时采用低温烘干的方式进行,具体为:
烘干温度为30℃,且烘干过程中通过风扇保证气流快速流动,烘干后织物复合材料含水量为32%时停止烘干。
上述抗菌面料按以下步骤制备:
(1)按现有技术将纳米级银离子与聚酯切片共混纺丝制得银离子改性聚酯纤维,将银离子改性聚酯纤维纺丝,再制成银离子改性聚酯纤维层得到第三纺织层;
(2)将常规纤维即真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔先进行初步松解获得混合均匀的纤维,再进行精开松,并对常规纤维进行梳理,形成单层纤维网,将单层纤维网通过铺网机织成多层纤维网,多层纤维网通过缝制制成第四纺织层;
(3)按顺利将第一纺织层织物复合材料层、第二纺织层德绒层、第三纺织层及第四纺织层叠放好,然后采用压合装置对其进行压合处理,静置后,取下并在80℃下热处理,即可得到抗菌面料。
在本实施例中,常规纤维中的真丝在使用前进行处理,具体为:
(1)用AgNO3溶液和氨水制备银氨溶液,氨水不过量;
(2)将芦荟叶片、仙人掌洗净去斑并榨成汁液混合后,加入去离子水,在电炉上加热至沸腾,冷却后过滤,取滤液备用;
(3)将步骤(1)的银氨溶液加入到步骤(2)芦荟、仙人掌水浸提取液中,常温下充分反应24h后,得到芦荟仙人掌纳米银胶体溶液,芦荟仙人掌纳米银胶体溶液中银含量控制在3.6μg/mL;
(4)将桑蚕丝布样浸于胶体溶液中,浴比1:50,在40℃下于振荡水浴锅中振荡40min,然后取出、清洗、晾干,得到处理后的真丝。
在对真丝进行处理时严格选定芦荟仙人掌纳米银胶体溶液中银含量控制在3.6μg/mL,即浓度控制在3.6μg/mL,制备不同浓度的芦荟纳米银胶体溶液,各取2mL注入到8mL菌悬液中。将该菌悬液在37℃±1℃的振荡器中密封振荡培养6h后,将混合液倒入比色皿中,测量其在546nm处的吸光度(Abs),比较细菌生长情况,所用芦荟纳米银胶体溶液的浓度为0μg/mL、3.3μg/mL、3.4μg/mL、3.5μg/mL、3.6μg/mL、3.7μg/mL、3.8μg/mL、3.9μg/mL、4.0μg/mL,用混合液546nm处的紫外吸光度值(Abs)来表示细菌的生长情况,比较得出纳米银胶体溶液的抑菌性随着胶体溶液中含银量的增加而提高。当含银量达到3.6μg/mL时,溶液的抑菌能力不再随着含银量的增加而提高,即达到了最佳的抑菌性能,银量3.6μg/mL的溶液与不含银的空白溶液在24h内的抑菌性能的对比,仅加入空白溶液的菌悬液在546nm处的紫外吸光度值(Abs)在10h内迅速提高,表明该菌悬液中大肠杆菌和金黄色葡萄球菌的繁殖都很旺盛,而加入纳米银胶体溶液的菌悬液其546nm处的Abs值在24h内几乎无变化且略有下降,表明该菌悬液中大肠杆菌和金黄色葡萄球菌的繁殖都得到了抑制,即浓度为3.6μg/mL的芦荟纳米银胶体溶液有很好的抑菌性能。
将本实施例的抗菌面料纺织城抗菌纱布,将抗菌纱布洗涤100次后对其抗菌性采用现有技术进行测定,具体数据见表3所示;
表3实施例中抗菌纱布的抑菌数据
由表3可见在有光和避光条件下,抗菌纱布对大肠杆菌、白色念珠菌、金黄色普通球菌菌有优良的抗菌性能。
除上述实施例外,本发明还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案,均落在本发明要求的保护范围。
Claims (9)
1.一种含银离子改性纤维的混纺抗菌面料,其特征在于,该抗菌面料按质量份数计包括以下组分:银离子改性聚酯纤维:10-20%,织物复合材料:10-13%,德绒:15-20%,余量为常规纤维,以上各组分之和为100%,其中:
所述常规纤维为真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔;
该抗菌面料由第一纺织层、第二纺织层、第三纺织层及第四纺织层复合而成,所述第一纺织层为织物复合材料层,所述第二纺织层为德绒层,所述第三纺织层为银离子改性聚酯纤维层,所述第四纺织层由常规纤维混纺而成。
2.根据权利要求1所述的含银离子改性纤维的混纺抗菌面料,其特征在于:所述银离子改性聚酯纤维的线密度为3.8-4.0dtex,断裂强度为4.7-4.9cN·dtex-1,回潮率4.3-4.5%。
3.根据权利要求1所述的含银离子改性纤维的混纺抗菌面料,其特征在于:所述德绒的线密度为0.9-1.0dtex,断裂强度为1.37-1.42cN·dtex-1,回潮率2.05-2.10%。
4.根据权利要求1所述的含银离子改性纤维的混纺抗菌面料,其特征在于:所述常规纤维按质量份数计各原料为:真丝:10-15份,竹纤维:10-13份,莫代尔纤维:15-20份,牛奶蛋白纤维:10-12份,超细旦木代尔:8-11份。
5.根据权利要求1所述的含银离子改性纤维的混纺抗菌面料,其特征在于:所述织物复合材料的制备方法如下:
(1)织物预处理
将棉织物在使用前放入十二烷基磺酸钠水溶液中,超声 1 h,去离子水洗涤,再使用无水乙醇超声洗涤 30 min 后,用去离子水洗涤,在 80 °C 的烘箱里干燥 1h 得空白棉织物,放塑封袋里备用;
(2)溶胶液制备
取硫脲和尿素溶解到无水乙醇中,再加入钛酸丁酯,用6wt%稀硝酸调节其 pH 为 3~4,搅拌均匀,然后将去离子水缓慢滴加到上述溶液中,并继续搅拌 20-23min,静置 0.8-1h,得到湿凝胶;
(3)负载制得织物复合材料
将步骤(2)得到的溶胶液继续搅拌,待出现丁达尔现象后,将步骤(1)准备好的棉织物浸渍到溶胶液中,浸渍5-7min,将棉织物取出放在干净的玻璃板上,再用同样的玻璃板压上,并在板上施加1kg的重量,1-3min后取出,放在玻璃皿上进行烘干,得到织物复合材料。
6.根据权利要求5所述的含银离子改性纤维的混纺抗菌面料,其特征在于:步骤(3)进行烘干时采用低温烘干的方式进行,具体为:
烘干温度为30℃-40℃,且烘干过程中通过风扇保证气流快速流动,烘干后织物复合材料含水量为32-36%时停止烘干。
7.根据权利要求1所述的含银离子改性纤维的混纺抗菌面料,其特征在于,该抗菌面料按以下步骤制备:
(1)将纳米级银离子与聚酯切片共混纺丝制得银离子改性聚酯纤维,将银离子改性聚酯纤维纺丝,再制成银离子改性聚酯纤维层得到第三纺织层;
(2)将常规纤维即真丝、竹纤维、莫代尔纤维、牛奶蛋白纤维及超细旦木代尔先进行初步松解获得混合均匀的纤维,再进行精开松,并对常规纤维进行梳理,形成单层纤维网,将单层纤维网通过铺网机织成多层纤维网,多层纤维网通过缝制制成第四纺织层;
(3)按顺利将第一纺织层织物复合材料层、第二纺织层德绒层、第三纺织层及第四纺织层叠放好,然后采用压合装置对其进行压合处理,静置后,取下并在80-90℃下热处理,即可得到抗菌面料。
8.根据权利要求7所述的含银离子改性纤维的混纺抗菌面料,其特征在于:常规纤维中的真丝在使用前进行处理,具体为:
(1)用AgNO3溶液和氨水制备银氨溶液;
(2)将芦荟叶片、仙人掌洗净去斑并榨成汁液混合后,加入去离子水,在电炉上加热至沸腾,冷却后过滤,取滤液备用;
(3)将步骤(1)的银氨溶液加入到步骤(2)芦荟、仙人掌水浸提取液中,常温下充分反应24h 后,得到芦荟仙人掌纳米银胶体溶液;
(4)将桑蚕丝布样浸于胶体溶液中,浴比 1:50,在 40-60℃下于振荡水浴锅中振荡40-50min,然后取出、清洗、晾干,得到处理后的真丝。
9.根据权利要求8所述的含银离子改性纤维的混纺抗菌面料,其特征在于:所述芦荟仙人掌纳米银胶体溶液中银含量控制在3.6-3.8μg/mL。
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