染苑精萃

楝树提取物对棉织物的抗菌整理,纺织品的高效卫生整理,棉织物免烫整理新方法——Econtrol MXL,医用棉织物的抗菌／拒血复合整理,纳米粒子无机抗菌剂,一种新型的有机硅柔软剂,BTCA免烫织物在洗涤过程中免烫性能的衰变     

抗菌整理剂在棉纺织品上的应用

应用“无机、天然、有机”3种抗菌整理剂对纯棉织物进行功能整理 ,通过抗菌性、耐洗涤性、毒性实验分析 ,证实无机和天然类抗菌剂高效、耐久、安全 ,其综合性能与有机类抗菌剂DC 570 0相当 ,是目前理想的织物抗菌整理剂     

凹土胶体粒子对棉织物的防紫外和抗菌整理

 为研制具有防紫外和抗菌等多功能织物,将凹土粒子整理到棉织物上,采用激光粒度仪、SEM、TG-DTA、荧光光谱等测试手段对凹土的分散及其整理后棉织物的结构与性能进行测试和表征。结果表明：凹土胶体粒子的粒径为100~150nm;凹土粒子可被较好地整理到棉织物的表面,且随着凹土粒子质量分数的提高,织物表面覆盖的凹土粒子多而匀;经凹土胶体粒子整理后,棉织物的结构和热稳定性提高;荧光光谱表明凹土可吸收紫外线,具有良好的防紫外效果;经整理后的棉织物同时具有优异的抗菌性能;凹土粒子整理对棉织物的风格及白度影响不大。     

基于金属酚网络设计的耐久抗菌织物及其性能北大核心

为有效地解决抗菌纺织品的耐久性问题,受贻贝仿生的启发,研究引入金属酚网络单宁酸-铜离子,采用紫外辅助沉积法制备了高效耐久抗菌棉织物,并对其性能进行分析。结果表明:铜离子在织物表面主要以Cu(Ⅱ)的形式存在,整理后的棉织物具有优异的抗菌性及耐久性,在经过30次水洗后,对大肠埃希菌和金黄葡萄球菌的抑菌率均达到99.9%以上,同时织物的断裂强力有所提高,服用性能无明显影响。     

纳米TiO_2功能化纺织品的制备及性能研究

使用自制的纳米TiO_2水溶胶通过后整理工艺对棉织物进行处理得到纳米TiO_2水溶胶整理棉织物,对纳米TiO_2水溶胶整理织物进行了表征,并测试了其对染料的光催化降解性、甲醛降解性能、自清洁性能及抗菌性能。结果表明,纳米TiO_2水溶胶整理棉织物在光辐射条件下对水中的染料和室内空气中的甲醛具有显著的光催化降解作用。且该整理棉织物不仅具有显著的抗菌性,还能对吸附于其表面的老抽污渍进行光催化降解,实现自清洁效应,是一种集光催化、自清洁和抗菌的多功能织物。     

丝素纳米银对棉织物的整理研究

本研究利用丝素中酪氨酸残基来还原银氨络离子得到丝素纳米银水溶液,同时利用制得的丝素纳米银溶液对棉织物进行整理,测试了整理前后棉织物的抗菌性能、耐洗性能以及织物的风格等。结果表明,丝素制得的银纳米粒子平均粒径在10 nm左右,具有良好的均匀性和分散性。整理后的棉织物对大肠杆菌和金黄色葡萄球菌的抑菌率分别达到了99.72%和99.68%,且耐洗性能良好。同时,棉织物表面摩擦系数变小,织物手感变得光滑,获得了丝的质感。     

棉针织物的纳米抗菌整理研究

文中采用纳米级无机抗菌剂对棉织物进行了抗菌整理试验,对整理后的织物进行了抗菌效力测试和服用性能测试,试验结果表明:经整理的织物对金黄色葡萄球菌、大肠杆菌作用5 h后,抑菌率均在90%以上;且其透气性、悬垂性和顶破强力的变化不大.     

载银纳米二氧化钛对棉织物的抗菌性能研究

采用载银纳米二氧化钛整理棉织物,并研究其质星浓度和焙烘温度对抗菌性能的影响,当整理液质量浓度为10 g/L,焙烘温度为130℃时,整理棉织物对金黄色葡萄球菌和大肠杆菌的抑菌率均大于99.00%.测试了其抗菌耐久性,洗涤50次后,对两种细菌的抑菌率仍高于98.00%.探讨了载银纳米二氧化钛的抗菌机理,发现其通过银离子溶出和TiO2光催化达到抗菌效果,且二者间相互促进起到双重抗菌效果.     

柠檬酸和壳聚糖对棉织物抗菌整理的研究

针对柠檬酸和壳聚糖在棉织物抗菌整理中的应用,研究了壳聚糖的浓度对棉织物抗菌性的影响,多元羧酸的含量对壳聚糖固着率的影响及焙烘温度对壳聚糖固着率和白度的影响;并对整理后棉织物的性能进行了测试分析。结果表明,用柠檬酸和壳聚糖的混合液对棉织物进行抗菌整理的效果是明显的,整理后棉织物的耐久定型和折皱回复率都有提高,而且经反复洗涤后,其抗菌性仍达到80%以上。     

纳米银整理棉织物的制备及其抗菌性能

利用柠檬酸三钠和硝酸银溶液制备纳米Ag整理棉织物,通过X射线衍射仪、扫描电镜和X射线光电子能谱仪对纳米Ag整理棉织物进行表征。考察了柠檬酸三钠与硝酸银物质的量比、温度及浸泡时间对棉织物中Ag质量分数及棉织物抗菌性能的影响。结果表明,棉织物中Ag质量分数和棉织物抗菌性能随着柠檬酸三钠与硝酸银物质的量比的增大先增大后减小,随温度的升高及浸泡时间的延长而增大。当柠檬酸三钠与硝酸银物质的量比为5、温度为80℃、浸泡时间为60 min时,抗菌棉织物对革兰氏阴性菌和革兰氏阳性菌的抑菌圈直径分别达到2.7、2.3 mm。洗涤5次后,纳米Ag整理棉织物仍具有较好的抗菌活性。     

改性活性棉织物的纳米银原位组装抗菌整理

为实现纳米银在棉织物上的定向原位组装,以及纳米银抗菌纺织品的绿色、简便、高效、可循环的加工工艺,通过对棉织物进行氧化处理并接枝"核-壳"结构的改性聚酰胺超支化聚合物,制备了具有主动捕捉银离子、还原银离子、控制纳米银粒径、固着纳米银功能的活性棉织物。利用改性活性棉织物进行纳米银原位组装,对整理后的棉织物进行了表征,测试了其抗菌性能及耐洗性。结果表明:通过氧化、接枝处理能够将聚合物接枝到棉织物上,并且棉织物的活性改性处理对织物的力学性能影响不大。改性后的活性棉织物能够进行连续加工整理,整理过程实现零排放。整理后的棉织物纤维表面分布着大量5~25 nm的纳米银颗粒,其对金黄色葡萄球菌和大肠杆菌的抑菌率均在99.9%以上,且具有优异的耐洗牢度。     

甜菜碱聚合物的合成及其在棉织物抗菌整理中的应用

为解决现有甜菜碱抗菌剂在棉织物整理中抗菌效果不足的问题,制备了一种聚磺酸甜菜碱(PSPB-Am-AGE)抗菌整理剂并应用于棉织物的抗菌整理。利用正交试验分析了合成抗菌剂的温度、时间、引发剂用量和反应单体配比对其抑菌率的影响;采用活菌计数法测试了抗菌剂的最低抑菌浓度、抗菌整理后棉织物的抗菌性能及耐洗牢度。试验结果表明:合成该抗菌剂的最优工艺为反应温度70 ℃、反应时间4 h,甜菜碱与丙烯酰胺的量比为 2∶1,引发剂2%;PSPB-Am-AGE对大肠杆菌与金黄色葡萄球菌的最低抑菌质量浓度为2.625 g/L;红外谱图与扫描电子显微镜表征结果表明,PSPB-Am-AGE成功接枝到织物表面。整理后织物对大肠杆菌和金黄色葡萄球菌的抑菌率分别为96.25%和99.79%,经30次洗涤后抑菌率仍超过90%,耐洗涤性能优于AAA级抗菌纺织品。     

Fabrication of photochromic,hydrophobic, antibacterial,and ultraviolet-blocking cotton fabric using silica nanoparticles functionalized with a photochromic dye

The aim of this work was the fabrication of cotton fabric with multifunctional properties such as photochromic, hydrophobicity, antibacterial, and ultraviolet (UV) blocking. In this regard, a mixture of silica nanoparticles with spirooxazine as a photochromic dye first applied on the cotton fabric, and then, the fabric surface was coated with an alkylsilane compound. The homogenous distribution of silica and silica/spirooxazine hybrid on the cotton fibers was established by field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray mapping. X-ray diffraction patterns confirmed the amorphous nature of the hybrid on the treated cotton fabric. The photochromic effect of the fabrics was measured after 5-min sunlight irradiation. Other characteristics of treated fabrics, such as antibacterial activity, hydrophobic properties, and UV-blocking activity, were also assessed. The results indicated that adding silica nanoparticles to spirooxazine had a tangible effect on photochromic activity of treated cotton fabrics and its photochromic performance was higher than that of the photochromic dye. The fabric showed stable hydrophobicity with static water contact angle values of 141.2° ± 1°. Moreover, the coated cotton fabric demonstrated proper antibacterial properties and UV-blocking activity.     

抗菌和防细菌黏附整理剂在棉织物改性中的应用

为制备同时具有抗菌和防细菌黏附功能的棉织物,采用光控葡萄糖氧化酶体系引发自由基聚合反应,分别以[2-(甲基丙烯酰基氧基)乙基]二甲基-(3-磺酸丙基)氢氧化铵(SBMA)或甲基丙烯酸二甲氨基乙酯(DMAEMA)与3-(异丁烯酰氧)丙基三甲氧基硅烷(TMSPMA)聚合,得到防细菌黏附聚合物P(TMSPMA-co-SBMA)和抗菌聚合物P(TMSPMA-co-DMAEMA)。然后,通过浸渍-焙烘法将2种聚合物单独或共同整理到棉织物上。测试了整理织物的化学结构、表面元素含量、抗菌性能、防死/活细菌黏附性能等。结果表明:2种聚合物成功整理到棉织物上;抗菌整理棉织物抑菌率达到99.9%,表面较多死细菌;防细菌黏附整理棉织物具有85%以上抑菌率,表面黏附的死/活细菌均较少;抗菌防细菌黏附棉织物抑菌率与防活细菌黏附率达到98%和81%以上,且织物表面可防止死细菌黏附。     

A novel multifunctional cotton fabric using ZrO2 NPs/urea/CTAB/MA/SHP: introducing flame retardant,photoactive and antibacterial properties

This study was aimed to investigate the possibility of producing multifunctional properties on cotton fabric using ZrO₂ nanoparticles along with cetyltrimethylammonium bromide (CTAB) and urea. Maleic acid was also used as a cross-linking agent in the presence of sodium hypophosphite as the catalyst to stabilize fabric from creasing and nanoparticles on the fabric surface. The flame retardant properties of the treated samples were examined using char length and thermogravimetry analysis. The self-cleaning properties of treated cotton fabrics were also analyzed based on the discoloration of methylene blue under sunlight irradiation. The antibacterial activities of treated fabrics were examined against Escherichia coli through counting method. The surface of the treated cotton and microstructure of nanoparticles were characterized by scanning electron microscopy and transmission electron microscopy. Introducing urea as a nitrogen source enhanced both the flame retardant and photoactivity of the nano-ZrO₂-treated fabric. Moreover, incorporating CTAB in the finishing formulation exhibited the satisfactory antibacterial properties on the treated fabrics.     

纳米银的可控制备及对棉织物的抗菌整理

利用改性聚酰胺超支化聚合物（PNP）在水溶液中制备纳米银,探讨了其还原、控制制备纳米银的机理,研究了所制备的纳米银水溶液的抗菌性能,并利用PNP在棉织物中原位控制生成纳米银,以实现对棉织物的抗菌整理。结果表明：PNP中的氨基能够主动诱捕、还原银离子,并通过PNP的分子网络结构对纳米银的生成起控制作用。通过调节银离子的量,制备了平均粒径分别为13.23、4.34、2.66 nm的纳米银水溶液,所制备的纳米银水溶液最小抑菌浓度为2 mg/L。利用PNP原位控制生成纳米银整理的棉织物具有优异的抗菌性能,其对金黄色葡萄球菌和大肠杆菌的抑菌率均在99 %以上,并具有优异的耐洗牢度。     

氧化石墨烯协同TiO2/SiO2改性涤/棉织物的抗菌持久性与服用性

为解决单一TiO₂改性涤/棉织物在可见光下光催化效率低、抗菌活性弱且不持久等问题,采用氧化石墨烯协同TiO₂/SiO₂掺杂复合改性涤/棉织物。利用场发射显微镜、明暗条件下的抗菌性实验、纺织品色牢度实验、拉伸断裂测试和弯曲性能测试等手段对复合改性前后织物的微观形貌、抗菌性及抗菌持久性、服用性能等进行分析评价。结果表明:在可见光下,TiO₂/SiO₂/氧化石墨烯复合改性织物表面纳米粒子涂覆均匀,抑菌率在99%以上,复合改性织物在15次水洗后其抑菌率仍保持为98.5%;虽然改性后织物的拉伸断裂性能、透气性能、手感等都有一定程度的损失,但损失影响不大。     

新型纳米银抗菌棉织物的制备及其性能检测

利用纤维素大分子自身的还原性和分散性,原位还原硝酸银溶液,制备得到了纳米银抗菌棉织物。采用紫外一可见分光光度计（UV-vis）、原子吸收光谱（AAS）、分光仪等测试了反应时间对棉织物表面银负载量和织物色差的影响,并进一步评价了所得纳米银棉织物的抗菌活性以及其细胞毒性。结果表明,处理后织物在422nm处存在光吸收峰,说明织物表面沉积颗粒为纳米银粒子,且均匀分布在织物纤维表面;当反应时间由10min延长至50min时,织物表面银粒子负载量由0．6890mg／g增加至1．3561mg／g,而织物颜色由原来的白色逐渐变为浅黄色。抗菌活性测试表明,纳米银抗菌棉织物具有优良的抗菌效果及耐洗涤性能,经20次循环洗涤后,其对大肠杆菌和金黄葡萄球菌的抑菌率仍分别高达98．5％和94．3％。细胞毒性测试表明,此抗菌织物对小鼠MC3T3-E1细胞为低毒性材料,细胞相容性较好。     

Plasma sputtering as a novel method for improving fastness and antibacterial properties of dyed cotton fabrics

Improving the fastness properties and antibacterial activity of dyed cotton samples is the main goal of this research work. First, cotton fabrics were dyed with various types of dyestuffs such as direct, vat, and reactive. Then, prepared samples were sputtered using plasma sputtering system for 15?s by silver and copper. In this study, we have used a DC magnetron sputtering system for deposition of metal nanolayer on the surface of samples. Samples were placed on the anode. The cathode particles were scattered by attacking active ions, radicals, and electrons. After plasma treatment, the reflection factor of sputtered samples was measured using reflective spectrophotometer. Also wash and light fastness properties of both sputtered and non-sputtered samples were compared according to ISO standards. The antibacterial efficiency was determined by bacterial counting test. The antibacterial properties of the fabrics were connected with the presence of metal on their surface. Silver or copper particles were deposited on the surface of cotton samples, and the antibacterial activity has been developed, through incorporation of metal nanoparticles on fabric surfaces. The results show that sputtering technique can be a novel method for improving the fastness properties of dyed cotton samples.     

Biopolishing and cyclodextrin derivative grafting on cellulosic fabric for incorporation of antibacterial agent thymol

Antibacterial textiles were developed and replenished with innovative technologies for durable activity of the antibacterial agent. Inclusion complex formation property of cyclodextrin and their derivatives were utilized for better durability of antibacterial, insect repellent and cosmetic textiles. In this work cellulase treatment process was performed on organic cotton to improve the grafting yield of the cyclodextrin derivative monochlorotriazinyl-β-cyclodextrin (MCT-β-CD). Thymol, an antibacterial compound was incorporated into MCT-β-CD grafted organic cotton to bring enhanced antibacterial property with improved durability. UV–visible and Fourier transform infrared analysis confirmed the incorporation of thymol into cyclodextrin. Scanning electron microscope and energy dispersive X-ray analysis confirmed the morphological and structural changes occurred on the fabric. High performance liquid chromatographic analysis (HPLC) quantified the thymol content on the fabric. Agar diffusion test was performed on fabrics against Staphylococcus aureus and Escherichia coli and their durability to washing cycles was also investigated. Biopolishing, a cellulase enzyme treatment has remarkably raised the grafting yield of MCT-β-CD on fabric. The inclusion of thymol on biopolished MCT-β-CD grafted fabric facilitated durability to the antibacterial property of fabric upon repeated washing process.