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The relationship between composite proportion of composite self-twisted yarn and its mechanical properties is studied based on the research method on the relationship of the blending ratio of blended yarn and its mechanical properties. Respectively by curve fitting of testing data of breaking strength and elongation for acrylic/polyester, wool/polyester, ramie/polyester composite self-twisted yarns, fitting correlation coefficient minimum value is 0 . 9 4 , the rest value range is in 0 . 9 9 ~ 1.00, therefore the fitting curve can be used to predict the strength and elongation of composite self-twisted yarns. Through the analysis of the theoretical curve of the strength and elongation for acrylic/polyester, wool/polyester, ramie/polyester composite self-twisted yarns, it is obtained for the composite proportions of the three kinds of composite self-twisted yarns. For acrylic/polyester composite self-twisted yarn it can be in any composite proportion, for wool/polyester composite self-twisted yarn the polyester content should reach more than 6 0% and for ramie/polyester composite self-twisted yarn the polyester content is more than 7 0% so that the yarn properties can meet the processing requirements. [ABSTRACT FROM AUTHOR]

The influence ol process parameters on uniformity of wettability improvement of wool fabric treated by atmospheric pressure plasma jet (APPJ) wettability was explored. The wool fabrics were treated by APPJ under different oxygen flow rate, jet-to-substrate distance and treatment time. The wet-out time of wool fabrics before and after APPJ treatment was measured. The diffusion photos of water drop on wool fabric surface were taken by digital camera. The morphological and chemical changes on the fiber surface were characterized by scanning electron microscopy (SEM) and X-ray photoelectron spectra (XPS) respectively. It was concluded that the uniformity of wettability improvement of wool fabric treated by APPJ increased and then decreased with the increasing oxygen flow rate and jet-to-substrate distance and increased with the increasing treatment time. [ABSTRACT FROM AUTHOR]

Wool woven fabric was treated by HD-1B cold plasma machine to analyze the primary sequence of factors affecting plasma treated wool effect and determine the optimum technology of wool plasma treatment by orthogonal design. The water-absorption time and K/S value of wool fabric were measured. The comprehensive evaluation method was used. The index of water-absorption time and K/S value was respectively converted into the standard score, which was added. It was concluded that the primary sequence was treatment time, reactive output power and gas type. The optimum technology was obtained as the treatment time of 30 s, output power of 55 W and the work gas type of air. [ABSTRACT FROM AUTHOR]

Particle tweed is a fashion leisure fashion fabric suitable for young urban people. In the paper, the process of particle tweed was explored. To ensure grain tweed style characteristics, the three tops of rayon, polyester and polyamide with stable and good quality was spun with silk particles and then plied, which was used as warp(20. 62 tex x2). The plied wool yarn was used as weft(20. 83 tex x2). The warp and weft was woven by rapier. The key technology of every process was introduced. The technological difficulty was analyzed and the corresponding measures were given. The fabric feels soft and active. The unique luster of fabric and the slight particles give a natural feeling of harmony. It is suitable for production of young female fashion. [ABSTRACT FROM AUTHOR]

The popularization and application of water-soluble PVA fiber opened up a new way for light and economic wool fabric. The process of light-weight tweed using the doubled yarn of wool and PVA was investigated. The doubled yam of 35. 7 tex wool and 13. 5 tex PVA as warp was woven with 35. 7 tex wool yarn as weft by Rapier, which could reduce weaving breakage and improve efficiency. The thin tweed was formed by removing PVA and finishing. The key technology of every process was introduced. The technological difficulty was analyzed and the corresponding measures were given. The thin tweed feels thin, smooth, waxy and flexible. It could be made of high fashion. [ABSTRACT FROM AUTHOR]