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Studies of Negative Pressure and Cleaning Condition Effects on Gathering for Ramie Compact Spinning with a Suction Groove

Research and development

Authors:

• Ma Hong-Cai
  Key Lab of Textile Science & Technology, Ministry of Edycation, Dong Hua University, Shanghai, P. R. China
• Ma Hong-Cai
  College of Textile and Clothing Engineering, Dezhou University, Dezhou, P. R. China
• Ma Hong-Cai
  College of Textiles, Dong Hua University, Shanghai, P. R. China
• Cheng Long-Di
  Key Lab of Textile Science & Technology, Ministry of Edycation, Dong Hua University, Shanghai, P. R. China
• Cheng Long-Di
  College of Textiles, Dong Hua University, Shanghai, P. R. China
• Yan Gui-Xiang
  Hunan Huasheng Dongting Flax Industry Ltd, Hunan, P. R. China
• Xu Shi-Ping
  Dechang Precision Textile Machinery Co., Ltd, Zhejiang, P. R. China

Full text

Abstract: The application of the compact spinning technique with a suction groove could reduce the spinning triangle to a minimum and dramatically decrease the hairiness of ramie yarn. The change range of negative pressure was discussed when the hairiness index was reduced to a minimum for the best gathering effect. The relationship between the doffing time and hairiness index of compact yarn was studied. When the suction groove was not cleaned, the spinning times influenced the fibre number accumulated inside the suction groove. The cleaning suction groove made airflow run smoothly, and the gathering effect of fibres was basically unchanged; thus the hairiness index of yarn rarely fluctuated. For compact yarn compared with 100% 27.8 tex traditional ring-spun yarn, the 4 mm hairiness index and above decreases by more than 79.72%. The result shows that ramie compact spinning with a suction groove could gather edge fibres effectively and reduce harmful hairiness markedly.

Tags:

suction groove, compact spinning, ramie, negative pressure, hairiness index.

Citation:

Ma H-C, Cheng L-D, Yan G-X, Xu S-P. Studies of Negative Pressure and Cleaning Condition Effects on Gathering for Ramie Compact Spinning with a Suction Groove. FIBRES & TEXTILES in Eastern Europe 2014; 22, 3(105): 54-57.

Published in issue no 3 (105) / 2014, pages 54–57.