基于环糊精包合技术的棉织物芳香整理测试

研究棉织物的芳香整理工艺.采用多元羧酸交联法对棉织物进行接枝,以聚丙烯酸作为交联剂将β-环糊精接枝到棉织物上.探讨了β-环糊精、聚丙烯酸与次磷酸钠浓度、焙烘温度与时间对织物上β-环糊精含量的影响,测试了经芳香整理后接枝棉织物的皂洗牢度和抗菌性.结果表明:β-环糊精、聚丙烯酸与次磷酸钠浓度、焙烘温度与时间对织物增重率均有影响.认为:经β-环糊精接枝后的棉织物再经浸香整理后具有缓释性能和抗菌性能.     

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。     

抗真菌织物的制备及其织物风格的研究

用乙醇作溶剂,通过浸渍、加热的方法提取丁香药效成分作为天然抗真菌剂,对棉织物进行抗真菌整理,制备抗真菌织物。将抑菌率作为衡量指标,检测整理后棉织物的抗真菌效果,并采用FAST风格仪对整理前后织物的风格进行了测试比较。研究表明:采用丁香抗真菌剂进行抗菌整理,织物对白色念珠菌和红色毛癣菌均有良好的抑制效果,抑菌率达到90%以上,抗菌成分与织物结合紧密,耐洗涤性好。整理后织物的织物的弯曲刚度、剪切刚度变大,手感更加硬挺、丰满,制备的天然抗菌剂可有效地应用于预防皮肤真菌病和改善抗真菌纺织品性能。     

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。     

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.     

针织物的拒水拒油多功能整理

论述了织物的拒水拒油机理，应用纳米材料和有机氟树脂复配的整理剂分别对纯棉、涤棉和纯涤纶针织物进行拒水拒油整理工艺研究，从而确定了最佳整理工艺。采用AATCC-22和AATCC-11标准测试了经优化工艺条件整理的针织物，其拒水拒油性能和耐久性良好，整理后织物的顶破强力稍有提高，但透气性有所下降。     

真丝织物的花椒提取物抑菌整理

采用热回流方法，以水作为溶剂对花椒进行提取，并将其用于真丝织物的抗菌整理，测试了花椒提取物的抑菌性，并评价了整理后面料的抑菌效果。最佳的整理工艺为：提取物质量浓度为20 g/L，浴比1∶20，整理温度80℃，整理时间20 min。用花椒提取物整理后的真丝织物具有良好的抑菌效果，抑菌率可达93.23%。     

药用植物提取物对棉织物抗菌作用的研究

通过精选黄芩、五倍子这2种中草药为实验药材,提取中草药中的有效成分,利用其对棉织物进行功能性改性整理,赋予织物良好的抗菌效果。整个实验过程绿色环保无污染,整理得到的抗菌棉织物对人体无毒副作用,具有较好的环境友好性。研究结果表明:该中草药提取液具有较好的抗菌作用,经中草药提取物进行整理的棉织物对大肠杆菌和金黄色葡萄球菌的抗菌效果较为明显。     

聚磺酸甜菜碱的合成及在棉织物抗菌整理中应用

为实现棉织物的高效持久抗菌功能,制备了一种聚磺酸甜菜碱(PSPB)抗菌整理剂并将其应用于棉织物的抗菌整理。通过单因素分析法,探讨了PSPB质量浓度、浴比、浸泡时间、烘焙温度与烘焙时间对棉织物抑菌圈大小的影响,得到抗菌整理的优化工艺;采用活菌计数法对经优化工艺整理的棉织物进行抗菌性能及耐洗牢度测试。结果表明,抗菌整理的优化工艺条件为:PSPB质量浓度54 g/L,浴比1∶30,浸泡时间50 min,烘焙温度170 ℃,烘焙时间150 s。红外光谱与扫描电镜表征证实PSPB成功合成且成功接枝到棉纤维表面。整理后织物对大肠杆菌与金黄色葡萄球菌的抑菌率分别为99.87%、99.99%,且具有优异的耐洗性能。织物断裂强力及白度测试结果表明,PSPB抗菌棉织物的强力与白度均满足服用要求。     

高长径比银纳米线的制备及其应用

应用多元醇法制备银纳米线(AgNWs),分析影响银纳米线形貌的原因,并测试最佳条件下合成的AgNWs的外观形貌、化学结构、结晶性能,然后将AgNWs分散到无水乙醇中,对棉织物进行整理,最后采用浸渍-烘干法将AgNWs整理到已经过等离子体预处理的棉织物表面,对整理后的棉织物进行抗紫外性能、导电性、抗菌性能测试。结果表明：合成的最佳AgNWs最长可达127.54μm,平均76.72μm,长径比为1189;等离子体处理提高了棉织物对AgNWs的附着性能;AgNWs整理可使棉织物方块电阻低至5.67Ω/sq, AgNWs质量浓度为10 g/L时,UPF值可达65.9,能够满足抗紫外标准,同时整理的棉织物能够形成明显的抑菌圈,具有抗菌效果。实验制备的棉织物具有多功能特性,可作为功能性织物进一步开发应用。     

Functional finishing of cotton fabrics using graphene oxide nanosheets decorated with titanium dioxide nanoparticles

This study examined an innovative approach for imparting multi-functional properties, i.e. self-cleaning, electrical conductivity, ultraviolet (UV) blocking as well as antimicrobial properties onto cotton fabric. Graphene oxide/TiO₂ nanocomposites were successfully prepared, by a simple method of mixing and sonication, and used for multi-functional treatment of cotton fabrics by dip-drying technique. The physicochemical properties of the prepared samples were characterized with field emission scanning electron microscope, transmission electron microscope, X-ray diffraction, and X-ray photoelectron spectroscopy. Self-cleaning performance, electrical resistance, antimicrobial properties, and UV blocking activity of treated fabrics were also assessed. The coated cotton fabrics with graphene oxide/TiO₂ nanocomposite showed excellent photocatalytic self-cleaning activity measured by degradation of methylene blue in aqueous solution under sunlight irradiation. Results showed that the electrical conductivity of the graphene oxide/titanium dioxide nanocomposite-coated fabrics was improved significantly after sunlight irradiation. Moreover, the nanocomposite finished cotton fabric demonstrated proper antimicrobial properties and UV blocking activity.     

The effects of chitosan antimicrobial treatments on the physical and mechanical properties and wear performances of highly elastic fabrics used for burn scar management

As exerted pressures play a critical role on highly elastic fabrics on performances of pressure garments in burn scar management, they should also protect their physical and mechanical properties after chemical treatments. Samples were treated with chitosan to achieve antimicrobial property for further designs to help rehabilitation. In this study, the physical, mechanical properties and wear performances of chitosan treated highly elastic fabrics in comparison with untreated control samples were investigated. Results showed that a small significant decrease was observed for air permeability, bursting strength and drapeability while a small significant increase was observed for stiffness (CD, MD). The elasticity of the fabrics was protected during 90 days observation with time-dependent fabric growth analysis. The moisture regain of the fabric samples showed a small significant increase. Antimicrobial tests showed that all treated samples have a very good antimicrobial activity.     

聚酯/棉混纺织物染色及其抗菌性的改善

纺织化学的研究进展已实现通过表面改性赋予纺织品抗菌活性。旨在利用γ射线和壳聚糖作为天然阳离子试剂的环保工艺处理聚酯/棉混纺织物,对其抗菌活性进行评估和改善。同时研究该处理对拉伸强力、伸长率和折皱回复角等物理性能的影响。基于所用处理,选用不同阴离子型染料（直接、活性、酸性）上染聚酯/棉织物。     

Determination of silver release from antibacterial finished cotton and polyester fabrics into water

Silver compounds have extensive use among the antimicrobial agents in textiles. Silver particles are released into the water during washing processes in particular and they are released from the textile in time due to use. In this work, silver ion release from cotton and polyester antimicrobial fabrics which are the most widely used textiles have been studied. Two well-known silver-based commercial agents and silver-doped calcium phosphate powder-based antibacterial finishing agent which was developed in our previous work were applied to the fabric samples. The release of silver from the fabric samples during washing and incubation was determined by ICP-OES. The effects of fabric composition, time and laundering process on the silver release were studied. It was found that significant amount of silver was released from textile fabrics during washing due to the mechanical forces exerted on the fabrics. The total released silver varied from 73.43 to 92.27% for cotton fabrics and 76.49 to 89.70% for PES fabrics after 20 washing cycles. Results also showed that calcium phosphate can reduce the amount of silver release significantly. It was also found that even a smaller quantity of nanosilver particles was sufficient for strong antibacterial activity.     

棉织物生物盾AM500整理

生物盾AM 500,即3-（三甲氧基甲硅烷基）-丙基-二甲基十二烷基氯化铵,可通过冷轧堆工艺应用于棉织物,利用AATCC 147革兰氏染色法和浊度测试法定量分析生物盾AM 500对棉织物的抗菌活性。     

纳米银整理抗菌织物耐洗性及皮肤刺激性的评价

为考察抗菌织物的耐洗性及皮肤刺激性,以经纳米银整理的抗菌丝织物为实验对象,采用琼脂平皿扩散法和吸收法对其抗菌性能进行定性和定量实验,采用电感耦合等离子体质谱仪(ICP-MS)测定样品的金属溶出量,同时利用EPI-MODEL人体皮肤模型,对织物水萃取液的皮肤刺激性进行初步研究。结果显示:在洗涤50次后,样品对大肠杆菌8099和金黄色葡萄球菌ATCC6538的抗菌率依然在99%以上,具有良好的耐洗性能;织物水萃取液对皮肤无刺激性,较为安全。     

荷叶中抑菌成分的提取及其抑菌活性的研究

以乙醇溶液对荷叶进行抽提试验,得到了荷叶提取物;用荷叶提取物对几种常见的食品微生物进行抑菌活性测定,结果表明,荷叶的抑菌作用显著,且对大多数供试菌的MIC（最低抑菌浓度）值小于或等于8％。［实验结果同时表明了荷叶提取物在中、弱碱性条件下抑菌活性最强,并能耐受高温短时及超高温瞬时的热处理。     

Antioxidant and antimicrobial properties of various solvent extracts from Impatiens balsamina L. stems

The antioxidant and antimicrobial activities as well as the quantity of phenolic substances of Impatiens balsamina L. stem extracts obtained with various solvent were determined in this study. All of the extracts possessed moderate antioxidant potential in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging and reducing power assays. Antimicrobial activity was estimated using the cylinder-plate and agar dilution methods against four bacterial and six fungal strains. The extracts showed good antimicrobial activity especially antifungal activity against all of the tested microorganisms. The total phenolic and flavonoid contents ranged from 2.88 to 13.63 mg gallic acid equivalents/g dried extract and 0.98 to 7.87 mg quercetin equivalents/g dried extract, respectively. The results presented here indicate that the I. balsamina stem extracts have antioxidant and antimicrobial properties and are therefore a potential source of antioxidant and antimicrobial agents for the food and pharmaceutical industries. PRACTICAL APPLICATION: Our work indicates that the I. balsamina stem may be a good candidate as natural antioxidant and antimicrobial agents. It can be applied in food industry for preservation.     

Effect of microwave curing on antimicrobial activity of chitosan biguanidine hydrochloride treated wool fabrics

An alternative microwave curing system was used for curing chitosan biguanidine hydrochloride treated wool fabric to study its effects on the antimicrobial activity of the fabric. The effects of microwave curing at different irradiation power and treatment time on the physical properties of wool fabrics and the adsorption rate of chitosan biguanidine hydrochloride on wool fabrics has been examined. Comparisons were made between conventionally cured wool fabric and microwave‐cured wool fabric treated with chitosan biguanidine hydrochloride. The influence of microwave curing on the efficiency of crosslinking was studied by using scanning electron microscopy and Fourier transform infrared spectroscopy. Microwave‐cured samples showed a higher degree of crosslinking than conventionally cured samples without high losses in strength properties. Antimicrobial properties and the durability of the finish after repeated laundering results also supported the higher degree of crosslinking that occurred in microwave curing.     

Studying the magnetic,antibacterial, and catalytic activity properties of DBD/iron oxide nanoparticle-treated cotton fabric

In this study, the cotton fabrics were modified with dielectric barrier discharge (DBD). Untreated and DBD-treated cotton fabrics were printed with magnetic nanoparticles (γ-Fe₂O₃ nanoparticles). Argon was used as the working gas. The crystal structure, morphology, and magnetic nature of printed fabrics were investigated by X-ray diffraction, Scanning Electron Microscopy, and vibrating-sample magnetometry (VSM). The catalytic activity of the treated samples for wastewater treatment was studied. The effect of γ-Fe₂O₃ nanoparticles on the antibacterial activity of DBD-treated cotton fabric was also investigated. The results showed that DBD-treated samples can absorb more nanoparticles than untreated samples. The antibacterial activity of the DBD/γ-Fe₂O_3-treated samples, which was analyzed by the bacteria counting test, was increased considerably.