CN112030542B - 一种铜离子抗菌纱线的生产方法 - Google Patents
一种铜离子抗菌纱线的生产方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
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- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 12
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- 239000004471 Glycine Substances 0.000 claims description 3
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 claims description 3
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 claims description 3
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 claims description 3
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 claims description 3
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 claims description 3
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- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
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- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- XEFQLINVKFYRCS-UHFFFAOYSA-N Triclosan Chemical compound OC1=CC(Cl)=CC=C1OC1=CC=C(Cl)C=C1Cl XEFQLINVKFYRCS-UHFFFAOYSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
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- 150000002357 guanidines Chemical class 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
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- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical compound O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 description 1
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- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
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Abstract
本发明涉及一种铜离子抗菌纱线的生产方法,采用的工装包括能够进行加热的主缸和副缸,连通主缸和副缸的循环管路(3、4),所述的抗菌纱线由纤维素纤维(0)制备,成卷或成缕的纤维素纤维(0)放置在所述的主缸中,其特征在于,包括以下步骤:S1)对纤维素纤维进行碱活化;S2)铜离子接枝处理;S3)清洗、调酸、脱水和烘干;S4)将所述的步骤3)获得的纤维素纤维(0)与普通纤维混合编织,制得所述的铜离子抗菌纱线。本发明的铜离子抗菌纱线的生产方法通过接枝反应让铜离子接枝到纤维素纤维上,在特定的水温和工装下,生产的铜离子纤维具有高耐洗性和耐久的使用寿命。
Description
技术领域
本发明属于纤维后处理技术领域,特别涉及一种铜离子抗菌纱线的生产方法。
背景技术
随着公共卫生事件的频发,特别是2003年SARS事件和2020年新型肺炎时间的发生,人民对于安全舒适生活环境的追求,同时,对使用抗微生物产品安全环保更加注重。纤维素纤维是以棉、粘胶、天丝、麻等材质的天然纤维,具有环保、可再生、吸水性好、舒适性好的特征,广泛应用于纺织行业,用于制作服饰、家居用品、清洁用品、无纺布等领域。随着消费者对健康舒适清洁需求的提高,针对具有抗菌性能的纺织品需求也越来越多。
目前市场上开发了多种类型的抗菌纺织品,包括以银、铜离子、锌为活性组分的无机抗菌剂和以季铵盐、胍类、三氯生、咪唑、异噻唑啉酮为活性组分的有机抗菌剂,采用粘合剂、吸附或缠绕的方式整理到纺织品上,使纺织品具备抗菌活性。以上抗菌技术均存在环保或安全性问题: 1)银抗菌剂,以载体银或高分子银化合物整理到纺织品上,但银作为重金属元素,不能在人体内新陈代谢,对人体和环境均存在安全隐患;2) 铜离子抗菌剂,以铜离子氧化物或有机铜离子化合物整理到纺织品上,铜离子氧化物和有机铜离子化合物均存在较高毒性,对环境存在安全隐患;3)锌抗菌剂,以纳米氧化锌或有机锌化合物整理到纺织品上,具有抗菌效果较差,纳米材料或有机锌对人体和环境均存在安全隐患;4)有机抗菌剂,其大量来自于农药,存在安全隐患,而且在纺织品上耐水洗性能差,易溶出,对健康隐患很大。
现有技术中已有铜离子纤维,是一种新型的功能性纤维,其含有的铜离子表现出广谱抑菌性能,可以有效地抑制细菌、真菌、霉菌和藻类的生长和繁殖。此外,含铜离子织物与皮肤接触时能产生物理作用,刺激肌肤中胶原蛋白的生长。铜离子纤维的使用也相对安全——通过汗液经人体皮肤吸收至体内的铜离子,可以通过人体的正常新陈代谢而排除体外。不过,现有的铜离子纤维仅有化学纤维,或通过后整理工艺将铜离子整理到棉面料,存在耐洗性差的问题。植物纤维具有人体安全性的特性,但植物纤维由于表面极性及内部的多孔结构,易吸收环境水分,导致植物纤维复合材料的吸水吸湿性较强,进而利于细菌和霉菌的滋生与繁殖,降低植物纤维织物的耐久性能和使用寿命。此外,现有技术中的铜离子纤维制备是简单的水煮工艺,人们还粗浅地认为采用沸腾的处理液能更好地使铜离子附着在纤维上。
发明内容
本发明的发明目的是提供一种铜离子抗菌纱线的生产方法,与现有技术相比,本发明的方法通过接枝反应让铜离子接枝到纤维素纤维上,在特定的水温和工装下,生产的铜离子纤维具有高耐洗性和耐久的使用寿命。
本发明的具体技术方案是一种铜离子抗菌纱线的生产方法,采用的工装包括能够进行加热的主缸和副缸,连通主缸和副缸的循环管路,所述的抗菌纱线由纤维素纤维制备,成卷或成缕的纤维素纤维放置在所述的主缸中,其特征在于,包括以下步骤:
S1)对纤维素纤维进行碱活化
S11)将所述的纤维素纤维置于所述的主缸中,加入氢氧化钠或氢氧化钾溶液进行蒸煮,氢氧化钠或氢氧化钾浓度为2-10克/升,蒸煮温度为60-80℃,蒸煮时间为1.5-4小时,
S12)蒸煮完成后,用清水冲洗纤维素纤维至PH值7.0-7.5;
S2)铜离子接枝处理
S21)将硫酸铜离子在副缸中溶解后,加入赖氨酸、甘氨酸、丙氨酸、谷氨酸、天门冬氨酸、精氨酸中的一种或多种,调节PH至7.0-7.5,陈化0.5小时-4小时,铜离子加入量为纤维素纤维重量的0.01-0.1%,
S22)将主缸内的溶液加热至60-90℃,主缸和副缸内的溶液进行循环,蒸煮0.5小时-2小时;
S3)清洗、调酸、脱水和烘干
对所述的步骤S22)蒸煮后的纤维素纤维进行清洗,清洗至纤维上的铜离子含量为0.007-0.03%,再加入醋酸,调节纤维素纤维PH值至 6.0-7.0后脱水、烘干;
S4)将所述的步骤3)获得的纤维素纤维与普通纤维混合编织,制得所述的铜离子抗菌纱线。
更进一步地,所述的纤维素纤维包括棉、粘胶、天丝、麻等中的一种或多种。
更进一步地,所述的工装还包括上循环管路、循环泵和截止阀,
所述的主缸包括喷管、主缸本体、升降桨叶、升降杆、动密封和直线作动器,所述的喷管从所述的主缸本体外部插入主缸本体内,主缸本体内的喷管上具有均匀布置的通孔,用于向纤维素纤维上喷射铜离子溶液,所述的升降桨叶安装在所述的升降杆并位于主缸本体内,升降杆的上端通过所述的动密封穿出主缸本体并与所述的直线作动器活塞杆的自由端连接,所述的直线作动器能够带动升降杆垂直上下运动,从而驱动升降桨叶上下运动而扰动主缸本体内的溶液,
所述的主缸的喷管的输入端通过所述的上循环管路与所述的副缸连接,所述的上循环管路上安装有所述的循环泵和截止阀。
更进一步地,所述的工装还包括下循环管路,
所述的副缸包括副缸本体、搅拌桨、药剂添加器、垂直滤网和电机,所述的搅拌桨位于所述的副缸本体内,用于将副缸本体的溶液搅拌均匀,所述的垂直滤网的布置方向与副缸本体内溶液上下流动方向一致,用于吸附循环溶液中的杂质,所述的药剂添加器用于在步骤S2)中溶液循环过程调节溶液的成份,所述的电机用于驱动搅拌桨旋转,
所述的下循环管路用于从缸底连通所述的主缸本体和副缸本体。
本发明的有益效果是1)本发明的铜离子抗菌纱线的生产方法,通过对纤维素纤维碱活化和铜离子接枝步骤中的剂量、温度、时间等参数的优化,让铜离子与纤维素纤维接枝时更好地实现了共价键结合,提高了耐洗性,得了安全、环保、舒适的铜离子抗菌纤维素纤维,明显好于以往后整理工艺的抗菌整理方法;2)为实现更好地铜离子接枝效果,颠覆性地不采用常规的沸腾水煮工艺,在加热不沸腾的条件下,采用新型的升降扰流工装,能够使浸泡纤维素纤维的溶液混合均匀,完全模拟了沸腾水煮工艺;3)扰流工装采用升降桨垂直扰流,在反应容器中形成紊流,溶液分散性大大好于旋转桨搅拌的稳定流场形式;4)施加硫酸铜药剂的副缸具有搅拌桨和垂直滤网,不但提高了混合效率,也能滤除影响流动循环的杂质;5)施加硫酸铜药剂的副缸具有药剂添加器,可以在循环接枝反应的过程中调节溶液成份。
本发明的铜离子抗菌纱线的生产方法中的抗菌活性物铜离子来自于植物或食物中,安全、环保。别显好于以往银离子、锌离子、有机抗菌剂纤维。
附图说明
图1为本发明的铜离子抗菌纱线的生产方法实施例采用的工装结构示意图;
图中,喷管11,主缸本体12,升降桨叶13,升降杆14,动密封15,直线作动器16,
下循环管路3,上循环管路4,循环泵5,截止阀6,
副缸本体21,搅拌桨22,药剂添加器23,垂直滤网24,电机25。
具体实施方式
下面结构说明书附图对本发明的具体技术方案作进一步地描述。
本发明的一种铜离子抗菌纱线的生产方法,包括以下步骤:
S1)对纤维素纤维进行碱活化
所述的纤维素纤维包括棉、粘胶、天丝、麻等中的一种或多种。
S11)将所述的纤维素纤维0置于所述的主缸中,加入氢氧化钠或氢氧化钾溶液进行蒸煮。
为得到纤维素纤维进行碱活化的最佳参数,采用系列比较试验进行了分析。通过试验发现蒸煮时间为1.5-4小时,铜离子抗菌纱线具有更好的铜离子耐洗性,可以带来铜离子与纤维的接枝牢度。如下表1所示。
表1
通过试验发现氢氧化钠或氢氧化钾浓度为2-10克/升,能使纤维素纤维0更好地活化,更能保证以下步骤中铜离子接枝后的铜离子残留量。如下表2所示。
表2
通过试验发现蒸煮温度不一致,铜离子的耐洗性不一致,在蒸煮温度 60-80℃,可以带来更好的铜离子与纤维的接枝牢度。如下表3所示。
表3
以上试验是采用了500ppm铜离子,洗涤50次后,测试铜离子的残留量的方法。
这样,发现并在不是在氢氧化钠或氢氧化钾100℃沸腾时,能够带来更好铜离子残留和接枝牢靠度,提高抗菌纱线铜离子的耐洗性。现有技术中一般都认为将溶液煮沸才能带来更好的化学处理效果。不过,如果溶液不沸腾,可能造成纤维素纤维0不能均匀活化,于是采用附图1所示的一种工装对溶液进行扰动。现有技术中一般采用搅拌桨进行化学药剂的分散。但是,搅拌桨只能在反应容器中产生均匀的流场,在本发明方法的实际应用条件下,可能造成纤维素纤维0活化的不均匀。在为更好地实施本发明的方法,采用升降桨叶13对反应容器内的溶液进行扰动,能够产成不规则的紊流,能够使溶液在反应容器内分布地更均匀,更好地活化纤维素纤维0。
在本发明方法的一个实施例中,采用的工装包括能够进行加热的主缸、副缸、下循环管路3、上循环管路4、循环泵5和截止阀6,所述的抗菌纱线由纤维素纤维0制备,成卷或成缕的纤维素纤维0放置在所述的主缸中。
所述的主缸包括喷管11、主缸本体12、升降桨叶13、升降杆14、动密封15和直线作动器16,所述的喷管11从所述的主缸本体12外部插入主缸本体12内,主缸本体12内的喷管11上具有均匀布置的通孔,用于向纤维素纤维0上喷射铜离子溶液,所述的升降桨叶13安装在所述的升降杆14并位于主缸本体12内,升降杆14的上端通过所述的动密封15 穿出主缸本体12并与所述的直线作动器16活塞杆的自由端连接,所述的直线作动器16能够带动升降杆14垂直上下运动,从而驱动升降桨叶 13上下运动而扰动主缸本体12内的溶液。直线作动器16可以为动力源可以是气动、液压或电动。
所述的副缸包括副缸本体21、搅拌桨22、药剂添加器23、垂直滤网 24和电机25,所述的搅拌桨22位于所述的副缸本体21内,用于将副缸本体21的溶液搅拌均匀,所述的垂直滤网24的布置方向与副缸本体21 内溶液上下流动方向一致,用于吸附循环溶液中的杂质,所述的药剂添加器23用于在步骤S2中溶液循环过程调节溶液的成份,所述的电机25 用于驱动搅拌桨22旋转。
所述的主缸的喷管11的输入端通过所述的上循环管路4与所述的副缸连接,所述的上循环管路4上安装有所述的循环泵5和截止阀6,所述的下循环管路3用于从缸底连通所述的主缸本体12和副缸本体21。
S12)蒸煮完成后,用清水冲洗纤维素纤维0至PH至7.0-7.5;
S2)铜离子接枝处理
S21)将食品级的硫酸铜离子在副缸中溶解后,加入食品级的赖氨酸、甘氨酸、丙氨酸、谷氨酸、天门冬氨酸、精氨酸中的一种或多种,调节 PH至7.0-7.5,陈化0.5小时-4小时,铜离子加入量为纤维素纤维(0) 重量的0.01-0.1%,对应的铜离子浓度为100ppm-1000ppm。在循环之前,主缸里放置已经经以上步骤碱活化的纤维素纤维0,并加入适量的用于循环的清水。
试验证明调节副缸中溶液不同的PH值,对铜离子与纤维素纤维接枝的牢度也有一定的影响,PH在7.0-7.5时,铜离子和纤维素纤维的接枝牢度最高。如下表4所示。
表4
PH值 | 铜的残留量(ppm) |
4.0 | 50 |
4.5 | 60 |
5.0 | 105 |
5.5 | 112 |
6.0 | 116 |
6.5 | 150 |
7.0 | 260 |
7.5 | 280 |
8.0 | 140 |
8.5 | 100 |
S22)将主缸内的溶液加热至60-90℃,主缸和副缸内的溶液进行循环,蒸煮0.5小时-2小时;试验证明铜离子加入时采用不同的温度加入,铜离子的接枝牢度会表现不一致。实际也发现不要使溶液沸腾,能带来更好地铜离子的接枝牢度。如下表5所示。
表5
铜离子加入时的温度(℃) | 铜的残留量(ppm) |
30 | 60 |
50 | 80 |
60 | 220 |
80 | 230 |
100 | 90 |
以上PH值和温度对接枝牢固度的影响的试验,采用了500ppm铜离子,调节不同的PH值以及采用不同的加入温度,洗涤50次后,测试铜离子的残留量。
S3)清洗、调酸、脱水和烘干
对所述的步骤S22)蒸煮后的纤维素纤维(0)进行清洗,清洗至纤维上的铜离子含量为0.007-0.03%,再加入醋酸,调节纤维素纤维(0)PH 值至6.0-7.0后脱水、烘干;
S4)将所述的步骤3)获得的纤维素纤维(0)与普通纤维混合编织,制得所述的铜离子抗菌纱线。
采用本发明的方法最终制得的铜离子抗菌纱线性能优异,具有高耐洗性,安全、环保、舒适。其性能如下表6所示。
表6
虽然本发明已经以较佳实施例公开如上,但实施例并不是用来限定本发明的。在不脱离本发明之精神和范围内,所做的任何等效变化或润饰,同样属于本发明之保护范围。因此本发明的保护范围应当以本申请的权利要求所界定的内容为标准。
Claims (4)
1.一种铜离子抗菌纱线的生产方法,采用的工装包括能够进行加热的主缸和副缸,连通主缸和副缸的循环管路(3、4),所述的抗菌纱线由纤维素纤维(0)制备,成卷或成缕的纤维素纤维(0)放置在所述的主缸中,其特征在于,包括以下步骤:
S1) 对纤维素纤维进行碱活化
S11)将所述的纤维素纤维(0)置于所述的主缸中,加入氢氧化钠或氢氧化钾溶液进行蒸煮,氢氧化钠或氢氧化钾浓度为2-10克/升,蒸煮温度为60-80℃,蒸煮时间为1.5-4小时,
S12)蒸煮完成后,用清水冲洗纤维素纤维(0)至pH 值7.0-7.5;
S2)铜离子接枝处理
S21)将硫酸铜离子在副缸中溶解后,加入赖氨酸、甘氨酸、丙氨酸、谷氨酸、天门冬氨酸、精氨酸中的一种或多种,调节pH 至7.0-7.5,陈化0.5小时-4小时,铜离子加入量为纤维素纤维(0)重量的0.01-0.1%,
S22)将主缸内的溶液加热至60-90℃,主缸和副缸内的溶液进行循环,蒸煮0.5小时-2小时;
S3)清洗、调酸、脱水和烘干
对所述的步骤S22)蒸煮后的纤维素纤维(0)进行清洗,清洗至纤维上的铜离子含量为0.007-0.03%,再加入醋酸,调节纤维素纤维(0)pH 值至6.0-7.0后脱水、烘干;
S4)将所述的步骤S3)获得的纤维素纤维(0)与普通纤维混合编织,制得所述的铜离子抗菌纱线。
2.如权利要求1所述的一种铜离子抗菌纱线的生产方法,其特征在于,所述的纤维素纤维包括棉、粘胶、天丝、麻中的一种或多种。
3.如权利要求1所述的一种铜离子抗菌纱线的生产方法,其特征在于,
所述的工装还包括上循环管路(4)、循环泵(5)和截止阀(6),
所述的主缸包括喷管(11)、主缸本体(12)、升降桨叶(13)、升降杆(14)、动密封(15)和直线作动器(16),所述的喷管(11)从所述的主缸本体(12)外部插入主缸本体(12)内,主缸本体(12)内的喷管(11)上具有均匀布置的通孔,用于向纤维素纤维(0)上喷射铜离子溶液,所述的升降桨叶(13)安装在所述的升降杆(14)并位于主缸本体(12)内,升降杆(14)的上端通过所述的动密封(15)穿出主缸本体(12)并与所述的直线作动器(16)活塞杆的自由端连接,所述的直线作动器(16)能够带动升降杆(14)垂直上下运动,从而驱动升降桨叶(13)上下运动而扰动主缸本体(12)内的溶液,
所述的主缸的喷管(11)的输入端通过所述的上循环管路(4)与所述的副缸连接,所述的上循环管路(4)上安装有所述的循环泵(5)和截止阀(6)。
4.如权利要求3所述的一种铜离子抗菌纱线的生产方法,其特征在于,
所述的工装还包括下循环管路(3),
所述的副缸包括副缸本体(21)、搅拌桨(22)、药剂添加器(23)、垂直滤网(24)和电机(25),所述的搅拌桨(22)位于所述的副缸本体(21)内,用于将副缸本体(21)的溶液搅拌均匀,所述的垂直滤网(24)的布置方向与副缸本体(21)内溶液上下流动方向一致,用于吸附循环溶液中的杂质,所述的药剂添加器(23)用于在步骤S2)中溶液循环过程调节溶液的成份,所述的电机(25)用于驱动搅拌桨(22)旋转,
所述的下循环管路(3)用于从缸底连通所述的主缸本体(12)和副缸本体(21)。
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