海藻纤维医用敷料及其抗菌改性研究

海藻纤维作为一种新型可再生绿色纤维,具有良好的生物相容性、成膜性、吸湿性等特点,并且在吸收液体后有易揭除的优点,可广泛应用于医用敷料领域。文中首先介绍海藻纤维的特性及结构特点,重点论述纤维混纺织物、非织造布和静电纺纳米纤维膜3类海藻纤维医用敷料的制备工艺;然后对海藻纤维医用敷料不同的抗菌改性方法进行总结,并分别对银离子、壳聚糖、石墨烯及其氧化物和中草药成分抗菌4种改性方法及各自的抗菌机理进行论述;最后指出海藻纤维医用敷料在抗菌改性过程中存在的不足以及未来发展方向。     

海藻纤维的性能与应用

介绍了海藻纤维的特殊“蛋盒结构”及其性能（高吸湿性、易去除性、高透氧性、生物相容性、降解吸收性、高离子吸附性）以及环保的制备方法;阐述了普通型、高吸湿型、抗菌除臭型等医用海藻纤维及其在电磁屏蔽和抗静电、阻燃等方面的作用机理。为开发新型织物提供了依据．     

含银海藻酸盐医用敷料的临床应用

为促进含银海藻酸盐纤维在医疗卫生领域的应用,开发具有高吸湿、强抗菌性的功能性医用敷料,介绍了国际市场上含银海藻酸盐纤维和医用敷料的主要品种、制备方法、产品性能及其应用领域;总结了含银海藻酸盐纤维和医用敷料在慢性伤口护理中控制创面感染增加细菌转阴率、抑制细菌增长减轻患者疼痛、促进伤口愈合缩短治疗周期以及降低治疗费用等方面的优良使用功效;总结了合理使用含银医用敷料过程中需要考虑的因素。结合全球各地的最新临床应用研究成果指出:含银海藻酸盐医用敷料在感染伤口、烧伤创面、手术切口、糖尿病足溃疡伤口、下肢静脉溃疡、压疮等创面护理中的应用价值。     

海藻酸盐纤维在生物医用领域的研究进展

探讨海藻酸盐纤维在生物医用领域的研究现状。介绍了海藻酸盐纤维的结构与性能、生产制备工艺以及在生物医用领域的应用现状;并对海藻酸盐纤维的发展进行了展望。认为:优化海藻酸盐纤维制备工艺,改进海藻酸盐纤维的功能化设计,开发新型高端智能化、仿生化医用纺织品能有效拓展海藻酸盐纤维在生物医用领域的范围。     

海藻纤维针刺复合医用敷料吸湿透气性能的研究

采用海藻纤维、黏胶纤维、涤纶的纤网,通过针刺工艺制备一种新型复合医用敷料。研究不同海藻纤维含量、不同纤网结构的复合医用敷料对液体的吸收性、扩散性以及透湿性和透气性的影响。结果表明:随着海藻纤维含量的增加,复合敷料的吸液量、透湿量及透气性有所提高,防止液体扩散的性能也有所提高;杂乱排列的纤网结构相对于平行排列的纤网结构,吸湿和透气性能都明显提高。     

科技动态

中纺院医用海藻酸盐纤维项目通过科技成果鉴定不久前,由中国纺织科学研究院承担的"医用海藻酸盐纤维的研究及应用开发"项目科技成果鉴定会在北京召开。与会专家认为该项目在原液制备、纺丝过程、纤维后处理及医用产品制备等技术方面具有创新性,开发的海藻酸盐纤维自然卷曲、物理机     

医用海藻酸盐纤维研究项目通过科技成果鉴定

8月5日,中国纺织科学研究院承担的“医用海藻酸盐纤维的研究及应用开发”项目科技成果鉴定会在北京召开。与会专家听取了该院项目组的工作汇报,审核了各项技术资料,认为该项目在原液制备、纺丝过程、纤维后处理及医用产品制备等技术方面具有创新性,开发的海藻酸盐纤维自然卷曲、物理机械性能及医用性能良好。用海藻酸盐纤维开发的医用敷料具...     

医用敷料用海藻纤维国内外研究进展

由海藻酸制成的纤维具有高吸湿性、止血性能、生物相容性好、能促进伤口愈合等特点,因此在医用敷料领域广泛应用。介绍医用敷料用海藻纤维的国内外研究进展,包括三种海藻酸共混纤维的开发现状。     

科技动态

中纺院医用海藻酸盐纤维项目通过科技成果鉴定近日,由中国纺织科学研究院承担的"医用海藻酸盐纤维的研究及应用开发"项目科技成果鉴定会在北京召开。与会专家听取了中纺院项目组的工作汇报,审核了各项技术资料,认为该项目在原液制备、纺丝过程、纤维后处理及医用产品制备等技术方面具有创新性,开发的海藻酸盐纤维自然卷曲、     

海藻酸盐医用敷料的临床应用

本文介绍了国际市场上海藻酸盐医用敷料的主要品种及产品性能,总结了海藻酸盐医用敷料的主要应用领域。结合世界各地对海藻酸盐医用敷料的临床应用研究成果,介绍了该产品特殊的‘凝胶堵塞’性能、促进伤口愈合的性能、止血性能、降低伤口疼痛的性能、抗菌性能以及降低治伤成本的性能。由于海藻酸盐医用敷料有很高的吸湿性和成胶性,在下肢溃疡、烧伤、褥疮、手术伤口等具有高渗出液的伤口的护理中有很高的应用价值。     

Effects of cellulosic fibre on physical and rheological properties of starch,gluten and wheat flour

In this study, we report on the effects of cellulose fibres of different particle size on changes to dough water absorption and rheology; and on effects of fibre on starch and gluten, separately, at different levels of fibre incorporation (0.1–10%). Water absorption and dough‐mixing properties were affected with fibre incorporation, with 40‐μm fibre incorporation resulting in greater absorption values. Dough stickiness and extensibility were affected by cellulose fibre particle size, and decreased with increasing fibre addition. Flour or starch and fibre mixtures were evaluated using a Micro ViscoAmlyoGraph (MVAG), and the resulting gel firmness was measured using a texture analyzer. MVAG peak and final viscosities of flour samples decreased with increasing fibre content. Starch–fibre interactions followed a similar trend as flour–fibre treatments. Gluten–fibre interactions were also measured using a Gluten Peak Tester on flour–fibre and gluten–fibre mixtures. Cellulose fibre enhanced the kinetics of gluten aggregation.     

Tencel织物的染整工艺研究

Ｔｅｎｃｅｌ纤维被誉为二十一世纪的绿色纤维,它是一种再生纤维素纤维,但其染整加工特性与传统的纤维素纤维又有所不同,控制纤维的原纤化可以使织物获得独特的风格。     

Fibre breakage during drafting on ring frame

Fibres are subjected to forces while undergoing drafting in any drafting zone. Various factors, such as fibre bulk, roller setting, roller pressure, draft, fibre length, fineness and friction between fibres, affect the magnitude of this force. It is usually considered that the drafting force in the ring frame is too low to have any consequence as far as fibre breakage is concerned. The present investigation, however, shows a substantial increase in short fibre percentage and reduction in upper quartile length, giving a clear evidence of fibre breakage during drafting process.     

Physico-chemical properties of black yak fibre and its modification for blending with jute fibre

Coarse yak fibre remained underutilized due to its higher stiffness, lower co-efficient of friction, and deep black in color. Such fibre was chemically modified to change its color similar to jute fibre. After modification the co-efficient of friction improved to 0.368 from 0.280 in the untreated sample. The improvement in co-efficient of friction and color increased the acceptability of blending of yak fibre with jute fibre. It was possible to blend 75% yak fibre with jute after suitable modification. Jute/yak fibres blended yarns were converted into plain woven fabrics as weft and polyester spun yarn as a warp.     

PTT纤维的性能测试与分析

为探讨PTT纤维的性能特征,系统对比分析了PTT纤维、PA纤维、PTT/PET纤维、PTT/PBT纤维以及高收缩PET纤维共5种纤维的拉伸性能、回弹性能、卷曲性能及沸水收缩性.试验表明,PTT纤维具有优良的弹性回复率,PTT/PET纤维、PTT/PBT纤维的的卷曲性和沸水收缩性能比PTT纤维更为优异,认为在今后PTT纤维的研究中可以尝试对其结构改进,以更好发挥其性能优势.     

防辐射纤维及其织物的发展前景

文章介绍电磁波辐射的危害、防护原理以及几种防电磁辐射纤维：金属镀层纤维、金属纤维及碳纤维、涂覆金属盐纤维、复合型高分子电磁屏蔽纤维和r射线防护纤维,及织物的研究现状与发展趋势。指出具有屏蔽电磁辐射功能的纤维及材料具有广阔的应用前景。     

牛奶蛋白纤维的力学性能测试及应用性能分析

牛奶蛋白纤维是一种新型的绿色纤维,通过对其基本性能测试分析,指出了牛奶蛋白纤维具有良好的可纺性能和穿着服用性能,具有良好的发展前景。     

Dietary fibre content of dry and processed beans

Common beans (Phaseolus vulgaris L.) are a good source of protein, vitamins, minerals and especially dietary fibre. As beans are never eaten raw, the effects of soaking, cooking, soaking–cooking and canning on soluble, insoluble and total dietary fibre contents of beans are studied. Total dietary fibre content was determined by enzyme-gravimetric method. The fraction of insoluble dietary fibre was corrected for the content of resistant starch, determined as part of the total starch in insoluble fibre. The results indicate that thermal processing decreased the insoluble fibre content, and consequently the total dietary fibre content of beans. Soaking and cooking of beans significantly (P⩽0.05) increased the resistant starch content. The data on dietary fibre content of processed food are much more relevant than those of raw food. Thus food composition tables should contain as much data on processed food as possible.     

拉伸细化羊毛纤维染色性能的研究

通过在不同恒温条件下对试样进行不同时间上染率的试验，探讨了拉伸细化羊毛纤维采用兰纳洒脱和兰纳素染料的染色性能。分析了拉伸细化羊毛纤维染色特点，通过对比，优选兰纳洒脱染料作为拉伸细化羊毛低温染色的染料，并且对染色加工中遇到的问题提出了参考意见，从而为合理使用TJGD-ERDOS-02型羊毛拉伸设备获得Optim纤维，为开发拉伸羊毛产品奠定了基础。