Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (04): 60-65.doi: 10.13475/j.fzxb.20180305406

• Textile Engineering • Previous Articles     Next Articles

Longitudinal electrical physical properties of spandex weft-knitted conductive fabric

HAN Xiaoxue1,2, MIAO Xuhong1,2()   

  1. 1. Engineering Research Center for Knitting Technology, Ministry of Education, Jiangnan University, Wuxi,Jiangsu 214122, China
    2. School of Textiles and Clothing, Jiangnan University,Wuxi, Jiangsu 214122, China
  • Received:2018-03-22 Revised:2018-11-27 Online:2019-04-15 Published:2019-04-16
  • Contact: MIAO Xuhong E-mail:miaoxuhong@163.com

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Abstract:

In order to investigate the electrical physical properties of spandex weft-knitted conductive fabrics in the longitudinal direction, spandex yarns and silver-plated conductive yarns were used to weave three elastic weft-knitted conductive fabrics of different organizational structures with the transverse column number of 160 and the longitudinal row number of 24, 48 and 74, respectively by a knitting circular knitting machine. The resistance changes of these conductive fabrics in the tensile state were measured, and then the influences of organizational structure and number of longitudinal rows on the electrical physical properties of conductive fabrics were analyzed. The test results show that under the longitudinal stretching conditions, the electrical physical properties of the spandex knitted conductive fabric is similar to that of the spandex warp-knitted conductive fabric. When the transverse column number is the same, the smaller the longitudinal row number, the better the sensitivity of the conductive fabric. When the transverse column number and the longitudinal row number are the same, weft-knitted fabrics have the best sensitivity, followed by 1+1 mock rib fabrics and 2+1 mock rib fabrics.

Key words: weft-knitted fabric, spandex, conductive fabric, longitudinal stretching, electrical physical properties

CLC Number: 

  • TS184.3

Tab.1

Weft-knitted fabric specification"

织物
编号		 织物组织
结构		 纵行数 横密/
(纵行·cm-1)		 纵密/
(横列·cm-1)
A1 24
A2 平针 48 20.0 17.0
A3 74
B1 24
B2 1+1假罗纹 48 14.5 21.0
B3 74
C1 24
C2 2+1假罗纹 48 14.5 25.5
C3 74

Fig.1

Resistance-strain curves of nine types of fabric. (a)Plain stitch fabric; (b)1+1 mock rib fabric;(c)2+1 mock rib fabric"

Fig.2

Coil changes during fabric drawing. (a) Fabric relaxation; (b) Stretching state 1; (c) Stretching state 2; (d) Stretching state 3"

Tab.2

Strain range and sensitivity of fabric"

织物编号 第Ⅰ阶段 第Ⅲ阶段
应变范围/% KⅠ 应变范围/% KⅢ
A1 0~10 362.0 20~45 153.2
A2 0~15 174.3 20~55 72.8
A3 0~20 112.8 30~55 64.2
B1 0~20 194.7 30~60 139.6
B2 0~25 152.0 40~60 153.3
B3 0~40 92.1 45~80 101.0
C1 0~15 133.3 20~50 123.5
C2 0~15 70.0 20~45 79.2
C3 0~20 36.9 25~45 43.7

Fig.3

Physical maps of conductive weft-knitted fabric. (a)A1 front; (b)A1 back; (c)B1 front; (d)B1 back; (e)C1 front; (f)C1 back"

Fig.4

Schematic diagram of contact points distribution of three types of fabric structure. (a) Plain; (b) 1+1 mock rib; (c) 2+1 mock rib"

"

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