Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (07): 58-63.doi: 10.13475/j.fzxb.20180902806

• Textile Engineering • Previous Articles     Next Articles

Pressure reduction property of warp-knitted spacer fabric

CHEN Meiyu1, SUN Runjun1, ZHANG Changqi2, LIU Xianfeng1   

  1. 1. School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
    2. Institute of Quartermaster Engineering Technology, Chinese Academy of Military Sciences, Beijing 100190, China
  • Received:2018-09-12 Revised:2019-02-28 Online:2019-07-15 Published:2019-07-25

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Abstract:

In order to investigate the quantitative relationship between the pressure reduction property and the structural parameters of a warp-knitted spacer fabric, the interaction mechanism between human body stress and spacer fabric during compression was analyzed theoretically. The relationship between the pressure on the human body and its structural parameters of a spacer fabric during compression was also investigated. The theoretical equation between the structural parameters and the pressure reduction property of a spacer fabric were found out, including spacer filament diameter, arrangement density of spacer filaments, spacer fabric thickness and so on. Furthermore, the compression experiments with a self-designed spherical indenter were applied to verify the relationship between the pressure reduction property and the main three structural parameters of a spacer fabric. The results indicate that the pressure on the human body of a spacer fabric during compression correlates with the spacer filament diameter in a power function, and with the spacer fabric thickness and the arrangement density of spacer filaments in an inverse and proportional function relation, respectively.

Key words: warp-knitted spacer fabric, pressure reduction property, spacer filament diameter, spacer fabric thickness, arrangement density of spacer filament

CLC Number: 

  • TS186.1

Fig.1

Schematic diagram of warp-knitted spacer fabric compressed by spherical ball"

Fig.2

Schematic diagram of a spherical crown"

Tab.1

Main structural parameters of warp-knitted spacer fabric samples"

样品
编号		 织物
厚度/
mm		 间隔丝
直径/
mm		 间隔丝
排列密度/
(根·cm-2)		 间隔丝垫
纱角度/
(°)
1# 12.6 0.100 67 30
2# 12.4 0.128 68 28
3# 12.5 0.164 66 29
4# 12.6 0.178 65 27
5# 12.3 0.219 70 30
6# 11.2 0.178 67 28
7# 14.4 0.178 69 29
8# 18.5 0.178 68 30
9# 20.4 0.178 67 30
10# 12.5 0.178 53 32
11# 12.7 0.178 87 29
12# 12.6 0.178 106 27
13# 12.8 0.178 132 28

Fig.3

Schematic diagram of designed spherical indenter"

Fig.4

Influence of spacer filament diameter on pressure reduction property of warp-knitted spacer fabrics"

Fig.5

Influence of spacer fabric thickness on pressure reduction property of warp-knitted spacer fabrics"

Fig.6

Influence of arrangement density of spacer filaments on pressure reduction property of warp-knitted spacer fabrics"

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