Influence of Twisting on Linen Fancy Yarn Structure

A study is reported for analysis of periodical effects of linen fancy yarns made in twisting process. The results indicate that the investigated variables are significant in determining the kind of decorative effect. It was concluded that the mathematical model that expresses the relationship between number of combination of two effects: loop/knot and plain knot in the unit of fancy yarn length and technological parameters of fancy yarn manufacture is informative. The received results enable to forecast the geometry of fancy yarn’s effects also permits to design new fancy yarns with optimum structure.     

Potential use of microcapsules in manufacture of fibrous products: A review

The present survey shows that microcapsules are used as effective tools for modification and functionalization of fibrous products. The core and shell materials of microcapsules can comprise various active ingredients in accordance with different requirements of final fibrous products. In this survey, the morphology, functional properties and added values of microcapsules, also such advanced types as nanocapsules, bi-, multifunctional microcapsules, and their applications in smart and other modern products are described. Some relevant applications of microcapsules in industrial processes are briefly discussed. The techniques used to encapsulate the core ingredients are also overviewed. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47066.     

The side effects of UV light stabilizer on properties of polypropylene based composite tape yarn

Initial consuming properties of polypropylene (PP) based composite tape yarns having different portions of ultraviolet (UV) light stabilizer are studied. In many cases, the samples with different portions of UV light stabilizer exhibit changes at level of initial properties, that is, the statistically significant side effects are obtained. When portion of the additive increases, the initial values of width, thickness and linear density of the modified samples are found to be reduced. The additions of UV light stabilizer also generate the statistically significant changes for the most tensile characteristics. The linear and second order polynomial equations are suggested to show the side effects on the properties. Some visual changes in morphology, that is, the differences in smoothness of the surfaces of the samples are also noticed. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 44400.