利用不同性能的纤维生产花式线及织物

介绍了利用各种不同特性的纤维,通过传统的纺纱设备生产花式纱线及其织物的几个实例。     

电容式与光电式测量纱线条干均匀度的相关性研究

通过对电容式与光电式测量纱线条干均匀度的原理、方法及测量结果的对比分析,指出两者各自的特点及相关性。     

罗纹机上开发方格效果面料

在罗纹机上编织的织物,利用其强捻和普通捻度棉纱丝光后的反光差距,开发出方格效果针织面料。通过原料选择、编织、染整工艺的综合设计,使弹力针织面料获得了良好的综合性能。     

多组分混纺纱生产中纤维的混和问题(一)

市场需要多组分混纺纱,但纺纱厂中多组分纤维的混和方式落后,文章在分析各种落后混和方式的缺陷以后,提出了比较具体的改进建议与实施方法.     

利用HKV151B型花式捻线机开发花式纱线

通过对花式纱线结构和HKV151B花式捻线机生产原理的分析说明,介绍在HKV151B型花式捻线机上开发花式纱线的工艺实践。     

Selective properties of polyester and cotton/polyester fabrics gamma radiation grafted with different binary mixtures of vinyl monomers

Radiation graft copolymerization of individual and comonomer mixtures of vinyl monomers onto polyester and cotton/polyester fabrics by the mutual method has been investigated. The effect of factors that may affect the grafting yield, such as solvent composition, comonomer mixture composition and radiation dose, have been examined. Suitable conditions that gives the highest graft yield without altering the original properties of the substrates are reported briefly. An attempt was made to determine the graft yield fraction from each monomer in the final graft copolymer in the case of grafting comonomer mixtures by using elemental analysis of nitrogen. Moreover, the results of elemental analysis were used to determine the reactivity ratios of the vinyl monomers. Some selective properties of the graft copolymers of polyester and cotton/polyester with the individual and comonomer mixtures have been investigated. The studied properties are the dye affinity for various dyestuffs and the mechanical properties in terms of tensile strength, elongation at break and Young's modulus. In general and regardless of the system used, grafting improves the dyeability of polyester and cotton/polyester with basic, vat, acid and disperse dyes. Also, it was found that improvement in dyeing and mechanical properties depends essentially on the composition of the graft copolymer and not on the composition of the feed comonomer solution or the total graft yield. © 1999 Society of Chemical Industry     

Stability of X‐ray cellulose crystallite orientation parameters in native cotton with change of location and year of growth

In this article, data on cellulose crystallite orientation parameters measured in terms of the Hermans orientation factor, average angle of orientation (α_m), and 40, 50, and 75% X‐ray angles in respect to the same 13 cotton cultivars grown at different agroclimatic locations and in different crop years in India are presented and discussed. It was observed that whereas the average values of the X‐ray orientation parameters are different for different varieties they remain practically invariant within individual varieties with change of the location of growth. The orientation parameters, therefore, appear to be genetic in origin and independent of the agroclimatic conditions of growth. It is believed that these results can be suitably exploited by cotton breeders in evolving varieties with an increased strength of fibers. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 72: 269–276, 1999     

Improvement of properties of natural polymers with organo–metallic complexes under ultraviolet radiation

Thin polymer films were prepared under ultraviolet radiation with a triacrylated aliphatic urethane oligomer that was diluted with reactive monomers such as N‐vinyl pyrrolidone and tripropylene glycol diacrylate. These films were characterized. The effect of incorporation of a minute amount (>0.15%) of a titanium–pyridine complex and its ligands on the characterization of these polymers was investigated. Cotton and jute yarns were treated with the solutions containing these materials under the UV radiation. The change in tensile properties of the treated natural polymers (cotton and jute) was evaluated, and it was found that the titanium–pyridine‐based complex substantially enhanced the tensile strengths (tenacity) for both cotton and jute. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 72: 1131–1138, 1999     

煮练酶在纯棉粗厚织物前处理中的应用

通过对比实验发现：煮练酶SKD-301堆置工艺较传统前处理更有助于纯棉机织物强力的保护及失重率控制,但对于棉纱质量较差的粗厚织物,尚需借助碱氧煮漂工艺完成PVA浆及棉籽壳的退除。     

The Respiratory Burst Oxidase Homolog Protein D (GhRbohD) Positively Regulates the Cotton Resistance to Verticillium dahliae

Verticillium wilt, mainly caused by a soil-inhabiting fungus Verticillium dahliae, can seriously reduce the yield and quality of cotton. The complex mechanism underlying cotton resistance to Verticillium wilt remains largely unknown. In plants, reactive oxygen species (ROS) mediated by Rbohs is one of the earliest responses of plants to biotic and abiotic stresses. In our previous study, we performed a time-course phospho-proteomic analysis of roots of resistant and susceptible cotton varieties in response to V. dahliae, and found early differentially expressed protein burst oxidase homolog protein D (GhRbohD). However, the role of GhRbohD-mediated ROS in cotton defense against V. dahliae needs further investigation. In this study, we analyzed the function of GhRbohD-mediated resistance of cotton against V. dahliae in vitro and in vivo. Bioinformatics analysis showed that GhRbohD possessed the conservative structural attributes of Rbohs family, 12 members of RbohD out of 57 Rbohs in cotton. The expression of GhRbohD was significantly upregulated after V. dahliae inoculation, peaking at 6 hpi, and the phosphorylation level was also increased. A VIGS test demonstrated that ROS production, NO, H₂O₂ and Ca²⁺ contents of GhRbohD-silenced cotton plants were significantly reduced, and lignin synthesis and callose accumulation were damaged, important reasons for the impairment of GhRbohD-silenced cotton’s defense against V. dahliae. The expression levels of resistance-related genes were downregulated in GhRbohD-silenced cotton by qRT-PCR, mainly involving the lignin metabolism pathway and the jasmonic acid signaling pathway. However, overexpression of GhRbohD enhanced resistance of transgenic Arabidopsis to V. dahliae challenge. Furthermore, Y2H assays were applied to find that GhPBL9 and GhRPL12C may interact with GhRbohD. These results strongly support that GhRbohD activates ROS production to positively regulate the resistance of plants against V. dahliae.