Cellulase Activities and Finishing Effects on Cotton Fabrics

The relationships between cellulase activities and theproperties of treated labrics including weight loss,breaking strength,surface thickness and bending rigiditywere investigated.Three cellulases were used to treattwo kinds of cotton fabrics and the results were com-pared to their activities measured towards filter paper,CMC and dewaxed cotton.The results suggested thatamong the three activities,exo activity(measured to-wards dewaxed cotton)be mostly inclined to reflect theactual hydrolytic capability of the cellulase on cotton fab-rics,while endo activity(measured towards CMC)wasof little use in predicting cellulase efflciency in terms ofweight loss.The investigation also suggested that the rel-atively endo-rich cellulase(Cellusoft Plus)was inclinedto give biopolishing effects by cleaning the surface fibrilof fabrics while the exo-rich cellulase(Cellusoft L,alsoknown as total or full cellulase)tended to deliver soften-ing cffects by decreasing the bending and shearing prop-erties.     

纯棉针织物的秦皮天然染料染色

以水为提取剂从中药秦皮中提取天然染料对纯棉针织物进行染色,研究不同媒染方式以及染料质量浓度、染浴pH值、染色温度及时间、媒染剂硫酸亚铁用量等后媒法染色工艺对纯棉针织物染色效果的影响.结果表明,后媒法染色效果最好,秦皮天然染料对纯棉针织物的后媒染染色最佳工艺为：秦皮天然染料质量浓度12g/L,染液pH 4,染色温度90℃,染色时间60min,媒染剂硫酸亚铁用量5g/L.织物经后媒染染色后得色均匀,各项色牢度较好.     

亚麻/彩棉/白棉混纺针织物柔软整理工艺研究

研究亚麻/彩棉/白棉混纺针织物的柔软整理工艺。在亚麻/彩棉/白棉针织物的柔软整理中,采用了纤维素酶、氨基硅油和纤维素酶配合氨基硅油3种整理方法,分别采用不同的柔软整理工艺,通过测试整理后织物柔软性、折皱回复性、悬垂性、抗起毛起球、透气性等服用性能,分析3种方法的柔软整理效果。结果表明：3种整理工艺都能改善织物的柔软性,采用氨基硅油和纤维素酶配合氨基硅油柔软整理效果最好,从整体上看,该工艺整理后的织物的服用性能好于另外两种工艺。     

Evaluation of Woven Fabrics for Comfort Properties in Children’s Summer Wear

This paper evaluates the comfort properties of eightkinds of woven fabric commonly used for children'ssummer wear in Hong Kong,China.Due to the expan-sion of children's wear market and the quality require-ment for parents,objective and subjective measurementsare the main methods used to evaluate the chosen fabricsfor garment deslgners and consumers as reference. Objective measurement was carried out through ex-periments by means of the Kawabata Evaluation Systemfor Fabrics(KES-F).Experimental tests on fabrics in-clude compression,surface,bending,air permeability,thermal and tensile.Subjective measurement was con-ducted by a market research on consumers' opinions onfabrics for children's summer wear in the form of ques-tionnaire survey.These two ways of measurement onfabrics were analyzed and compared. It was found that Fabric Sample 6 which is com-posed of polyester and cotton fibre has the best perfor-mance in terms of its comfort properties.Besides,Sam-ple 4 composes of rayon and cotton fibre also ha     

新型耐碱精练助剂SF应用

棉及棉型织物的漂练,由于各厂家的机器设备不同,所采用的工艺也不同。因此,对精练助剂的要求也不同,特别是我国引进冷轧堆工艺以来,与之配套的助剂虽然很多,但是一般都存在诸多不足。精练剂SF,应用广泛,适用于棉及涤/棉织物冷轧堆工艺,又适合煮练工艺,并有较高的浊点,耐浓碱,各项性能优于或接近国外同类精练剂。     

稀土MOF改性棉织物的制备及荧光性能

基于水溶液的层层自组装方法,在棉织物表面以不同芳香酸和稀土阳离子为原料制备稀土金属有机骨(rare earth metal-organic framework,REMOF)材料,得到一系列REMOF改性棉织物。采用X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、扫描电子显微镜(SEM)、荧光光谱分析(PL)以及紫外吸收光谱(UV-vis)对REMOF改性棉织物进行表征分析。荧光强度对比结果表明,当以1,4对苯二甲酸或1,3,5均苯三甲酸为配体时,在324 nm波长激发下改性棉织物于617 nm处出现Eu 3+的特征红色荧光。所有改性棉织物的UPF(ultraviolet protection factor)值均为50^+,T(UV-A)和T(UV-B)值均小于5%,表明改性棉织物具有优良的抗紫外性能。     

低温氧等离子体处理对纯棉织物性能的影响

采用低温氧等离子体对纯棉坯布进行处理并退浆,从微观形态分析了氧等离子处理对退浆效果的影响;分析了氧等离子处理对棉织物弯曲性能和折皱回复性以及强力的改善作用。     

棉织物性能对翻领里外匀的影响

选择翻领常用的11种棉织物面料,采用KES-FB织物风格仪测试面料的24个力学性能指标,并用这11种面料分别制作里外匀为2,3,4mm的3种翻领,将其与原型衣片缝合.邀请5位专业人士对翻领造型打分,选出最佳造型,然后用游标卡尺对最佳造型的外轮廓线和拼缝线的距离进行测量,计算得出最佳里外匀.最后通过回归分析得到面料厚度X1与理想里外匀Y的关系式:Y=0.660X1+2.229;经向平均摩擦因数X2与理想里外匀Y的关系式:Y=6.596X2+1.328.这两个回归方程可用来预测翻领理想里外匀.     

An Improved Heat Transfer Model for Flame Resistant Fabric Used in Thermal Protective Clothing

An improved numerical heat transfer model considering pyrolysis effect is proposed to predict thermal performance of heat-resistant fabric subjected to radiant heat flux. The model incorporates the heat-induced changes in fabric thermophysical properties. The new model has been validated with data from modified Radiant Protective Performance （RPP） tests of flame-resistant cotton fabrics. Comparison with experimental data shows that the predictions of mass loss rates and temperature profiles within the charring material and skin simulant are in reasonably good agreement with the experiments. Results from the numerical model contribute to a better understanding of the heat transfer process within flame-resistant fabrics under high heat flux conditions, and also to establish a systematic method for analyzing heat transfer in other fibrous materials applications.     

Coolmax织物湿舒适性能的灰色聚类分析

对Coolmax织物、棉、涤纶、涤棉织物的芯吸效应、保水率、干燥率、透湿性、透气性进行了测试分析；并通过人体穿着试验对服装的湿舒适性进行了评价；最后利用灰色聚类分析对6种织物的湿舒适性能做了综合评价。结果表明：Coolmax织物的湿舒适性能优于普通涤纶、棉、涤棉织物；客观试验与主观穿着试验的结果具有较好的一致性。     

条件平衡处理对针织物尺寸稳定性的影响分析

介绍了针织物的结构特征、编织工艺、性能特点和针织物的变形机理等内容,根据针织物尺寸稳定性影响因素确定条件平衡处理的实验方案,选取棉和羊毛两种纱线为原料,用针织横机编织,随后进行条件平衡处理,通过多次洗涤后的尺寸变化分析条件平衡处理对针织物尺寸稳定性能的影响。     

Preparation and Characterization of Temperature-Sensitive Hydrogels Composites by Coating Method

In this study,the hydrogels composites with coatings based on a temperature-sensitive linear copolymer of N-tert-butylacrylamide(NTBA)and acrylamide(AAm)on cotton fabrics have been developed.The cotton fabrics were coated using aqueous solution of the linear copolymer,1,2,3,4-butanetertracarboxylic acid(BTCA)as a cross-linker and sodium hypophosphite(SHP)as a catalyst,followed by drying and curing.The effects of cross-linking reaction conditions in coating process on water-impermeable ability of coated cott...     

从兔毛织物的掉毛规律研究兔毛产品的加工及开发

用不同磨料对不同配比、不同捻度、不同组织密度、不同机织物组织、不同纺纱系统等制得的兔毛织物，进行模拟掉毛试验，探讨了各种条件下兔毛的掉毛规律．在兔毛产品开发上应注意配毛时兔毛及与其混纺原料的质量和品种，既可开发粗纺呢绒兔毛产品，也可开发精纺及半精纺兔毛产品，也可采用棉纺系统或毛棉混合系统进行加工。     

纤维素酶的活力与棉纤维的失重

研究了纤维素酶活力与织物失重率、断裂强力、表面厚度和弯曲刚度的关系.用三种纤维素酶处理两种全棉织物,将处理结果(失重率等)与以滤纸、CMC、脱脂棉为底物测得的酶活力相比较.结果表明,脱脂棉酶活最能反映纤维素酶对棉织物的水解能力,而CMC酶活与酶的实际水解能力不存在明显的依赖关系.研究还表明,外切酶活较高的Cellu-soft L有利于使织物柔软,内切酶活较高的Cellusoft Plus有利于生物抛光.     

纱线捻度对针织面料服用性能的影响分析

实验以纬平针组织为研究对象,采用24tex纯棉纱线为原料,科学地选取具有一定代表性的纱线捻度值进行加捻实验,通过KH-868／KR-838型针织横机编织形成相应织物。对由不同纱线捻度值形成的针织物进行服用性能测试,包括透气性、悬垂性、起毛起球性、拉伸断裂性能,以分析不同的纱线捻度对针织面料服用舒适性能产生的重要影响。实验得出,对于S捻的24tex纯棉并捻纱线,纱线捻度值在4r／10cm时,织物的力学性能、透气性、柔软性和悬垂性等均达到较理想水平。     

织物洗涤防污测试评价的探讨

提出了洗涤过程中异种纤维对织物粘附的概念，并用模拟洗涤装置测试了腈纶和棉纤维对１０种涤纶试样的粘附率，分析了由于纤维的粘附给织物表面带来的问题．     

棉针织物硫化染料练染一浴两步法

研究了棉针织物硫化染料染色的工艺参数及其对染品染色深度、染色牢度等的影响,确定了棉针织物硫化染料练染一浴两步法适宜的染色工艺.实验表明:新工艺除染色深度稍低外,染品在皂洗牢度,干、湿摩擦牢度等方面均能达到两浴两步法的水平.     

麻织物力学性能探讨

麻纤维是世界上最早被人类所使用的天然纤维,在耐用、保健以及舒适性能等方面具有其他纤维难以比拟的优势。论文选取亚麻、苎麻、罗布麻、棉及混纺织物进行对比研究,分析了麻织物的拉伸、撕破、顶破、耐磨等力学性能,得出了几种不同麻织物的力学性能,为更好地开发不同麻类纺织品提供了理论依据。     

Finishing Effect on Warmth Property of Cotton/Kapok Blended Knitted Fabric

Nowadays,more and more natural or functional fibers are being investigated due to their utilization in thermal underwear.Kapok fiber is one of the natural cellulosic fibers whose source is the kapok plant. It has hollow body and sealed tail,which exhibits desirable features required for functional textiles of this nature. In this study,cotton / kapok( 80 /20 by mass) blended yarn with two types of yarn size 18. 5 and 14. 8 tex,respectively are knitted into plain stitches. The fabrics are undergone with an optimal preparation plan according to orthogonal design. Then,after dyeing and softening,fabric properties including thermal and water-vapour resistances, wicking property, pilling behaviour, and surface morphology,are tested and scrutinized for their candidacy for thermal underwear. The results showed that cotton / kapok blended fabrics have good thermal resistance which is significantly higher than those of cotton / modal blended fabrics,and the same water vapour resistance compared with cotton / modal blended fabrics which are normally used as underwear. Cotton / modal blended knitted fabrics has better pilling grade than cotton / kapok blended fabrics. Meanwhile, the cotton / kapok blends fabrics have good wicking property. Collectively,it was concluded that cotton / kapok blended fabric was appropriate for thermal underwear. However,the main limitation of these fabrics is their pilling properties.     

水针缠结合成革基布工艺及性能

讨论了水刺法、针刺法非织造布的成网工艺,以及水针能量对聚酯纤维和聚酯/聚酞胺分裂型纤维的合成革基布物理机械性能的影响.结果表明,聚酯/聚酸胺分裂型纤维的水刺基布具有优异性能.