Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (01): 40-45.doi: 10.13475/j.fzxb.20180102006

• Textile Engineering • Previous Articles     Next Articles

Contact spinning based on simplified embeddable and locatable system and properties of spun ramie yarn

FU Chiyu1, WANG Cancan1, HE Mantang1, XIA Zhigang1,2()   

  1. 1. College of Textile Science and Engineering, Wuhan Textile University, Wuhan, Hubei 430200, China
    2. State Key Laboratory Base of New Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan, Hubei 430200, China
  • Received:2018-01-06 Revised:2018-10-11 Online:2019-01-15 Published:2019-01-18
  • Contact: XIA Zhigang E-mail:zhigang_xia1983@hotmail.com

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Abstract:

In order to solve the high rigidity and excessive hairiness of ramie fiber products and operation inconvenience of four-components embeddable and locatable spinning (ELS), a contact spinning based on simplified embeddable and locatable system was provided by simplifiying embeddable components and adding sponge contact device during twisting part. Yarn formation mechanisms were theoretically analyzed for the S-ELS, dry contact S-ELS, and wet contact S-ELS. By modification on ring spinning frame, the ramie yarns spun by different methods were compared. The results show that compared with the S-ELS and dry contact spinning for S-ELS, wet contact spinning of S-ELS can online soften the ramie fibers to facilitate fiber twisting and wrapping, producing the optimum qualified ramie yarns with the lowest hairiness and the highest strength.

Key words: ramie yarn, contact simplified embeddable and locatable spinning, yarn property, wet spinning

CLC Number: 

  • TS104.7

Fig.1

Component process schematic diagram of S-ELS"

Fig.2

Models of S-ELS. (a) S-ELS system model; (b) Dry contact S-ELS model; (c) Wet contact S-ELS model and relative position of sponge contactor and yarn"

Fig.3

Filament feeding device(a) and groove holding device(b)"

Fig.4

Appearance images of S-ELS yarns."

Tab.1

Hairiness of yarns根/(10 m)"

纱线
名称		 纺纱
方案		 不同长度毛羽数 T S
1 mm 2 mm 3 mm 4 mm 5 mm 7 mm 10 mm 12 mm
管
纱		 方案A 712.6±29.6 284.9±25.4 159.9±17.0 101.7±13.7 61.5±9.8 23.3±3.3 5.6±2.5 2.1±1.6 1351.6±103.0 354.1±48.0
方案B 392.9±25.9 125.5±13.8 58.4±8.3 32.8±5.3 19.2±6.8 6.5±3.2 1.5±1.9 0.5±1.2 637.3±66.4 118.9±26.6
方案C 82.7±22.7 23.4±7.4 10.4±4.3 6.0±2.9 2.3±1.1 0.7±0.6 0.1±0.3 0.0±0.0 125.6±39.4 19.5±9.3
筒
纱		 方案A 1107.7±80.3 517.3±45.0 313.3±10.8 196.7±12.1 136.7±16.7 60.3±10.6 14.0±2.0 10.7±3.1 2356.7±180.4 731.7±55.1
方案B 683.3±12.0 241.7±29.2 153.0±9.8 123.7±9.7 84.0±10.6 46.3±7.0 12.7±2.3 10.0±1.0 1354.7±81.7 429.7±40.5
方案C 387.0±35.6 210.7±22.0 141.3±16.6 110.7±2.3 78.7±4.0 37.7±2.5 11.3±2.1 7.3±2.1 984.7±87.2 387.0±29.6

Tab.2

Tensile properties of S-ELS yarns"

纺纱
方案		 断裂强力 断裂伸长率
平均值/cN CV值/% 平均值/% CV值/%
方案A 211.86 21.48 3.67 21.95
方案B 221.69 7.41 3.86 19.92
方案C 232.84 14.94 3.27 15.96

Tab.3

Evenness properties of S-ELS yarns"

纺纱
方案		 条干
CV值/%		 纱疵/(个·km-1)
细节(-50%) 粗节(+50%) 棉结(+200%)
方案A 27.59 1 140.0 920.0 870.0
方案B 30.27 1 745.0 1 620.0 2 980.0
方案C 29.92 1 375.0 1 495.0 2 160.0
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