By a great deal of experiments,the misplating problemsof plated knitted fabrics composed of wool and Lycra arediscussed and analyzed.The factors affecting the mis-plating problems on manually operated flat knitting ma...By a great deal of experiments,the misplating problemsof plated knitted fabrics composed of wool and Lycra arediscussed and analyzed.The factors affecting the mis-plating problems on manually operated flat knitting ma-chine include the construction and adjustment of a plat-ing feeder,wool yarn count,feeding tension,takedowntension and the ground fabric structures.Some usefulresults can be derived from these works.展开更多
By means of a torque testing apparatus with heat case and steam, the torque-twist relationship and torque-relaxation of cashmere yarn are investigated in comparison with wool yarn under two conditions of standard stat...By means of a torque testing apparatus with heat case and steam, the torque-twist relationship and torque-relaxation of cashmere yarn are investigated in comparison with wool yarn under two conditions of standard state and heating and steaming state, and the effect of pre-tension on the torque-relaxation of cashmere yarn is also investigated.It shows that (1) the torque of cashmere yarn is lower than that of wool yarn under the same conditions, (2) the torques of wet cashmere and wool yarns are both lower than that of cashmere and wool yarns under standard conditions, (3) the torque hysteresis for cashmere yarn is smaller and its level and rate of torque relaxations are lower than that of wool yarn, and (4) the percentage of residual torque of cashmere yarn increases with increasing pre-tensions (630 cN).展开更多
A method of visual estimate of yarn spinning tension on worsted ring spinning frame is pro-posed. This method is based on pragmatized classical theory of spinning balloon, and is supportedby experimental data.
Plasma etching technique used in the modification of fibres,yarns and fabrics of wool is re-ported.The experimental results show that the method is useful for improving wettability and re-ducing shrinkage of wool,it m...Plasma etching technique used in the modification of fibres,yarns and fabrics of wool is re-ported.The experimental results show that the method is useful for improving wettability and re-ducing shrinkage of wool,it may be used to increase the strength of tops and yarns,and to enhancethe hand and colour of the final products.In addition,the characteristic features of the plasmamodified wool and discussions of possible mechanisms of the action are presented.展开更多
文摘By a great deal of experiments,the misplating problemsof plated knitted fabrics composed of wool and Lycra arediscussed and analyzed.The factors affecting the mis-plating problems on manually operated flat knitting ma-chine include the construction and adjustment of a plat-ing feeder,wool yarn count,feeding tension,takedowntension and the ground fabric structures.Some usefulresults can be derived from these works.
文摘By means of a torque testing apparatus with heat case and steam, the torque-twist relationship and torque-relaxation of cashmere yarn are investigated in comparison with wool yarn under two conditions of standard state and heating and steaming state, and the effect of pre-tension on the torque-relaxation of cashmere yarn is also investigated.It shows that (1) the torque of cashmere yarn is lower than that of wool yarn under the same conditions, (2) the torques of wet cashmere and wool yarns are both lower than that of cashmere and wool yarns under standard conditions, (3) the torque hysteresis for cashmere yarn is smaller and its level and rate of torque relaxations are lower than that of wool yarn, and (4) the percentage of residual torque of cashmere yarn increases with increasing pre-tensions (630 cN).
文摘A method of visual estimate of yarn spinning tension on worsted ring spinning frame is pro-posed. This method is based on pragmatized classical theory of spinning balloon, and is supportedby experimental data.
文摘Plasma etching technique used in the modification of fibres,yarns and fabrics of wool is re-ported.The experimental results show that the method is useful for improving wettability and re-ducing shrinkage of wool,it may be used to increase the strength of tops and yarns,and to enhancethe hand and colour of the final products.In addition,the characteristic features of the plasmamodified wool and discussions of possible mechanisms of the action are presented.
