Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (11): 51-55.doi: 10.13475/j.fzxb.20210303805

• Textile Engineering • Previous Articles     Next Articles

Key technologies for formation of warp T-shape preforms

WEI Xiaoling1, LI Ruixue1, QIN Zhuo1, HU Xinrong2, LIN Fusheng3, LIU Lingshan1, GONG Xiaozhou1()   

  1. 1. College of Textile Science and Engineering, Wuhan Textile University, Wuhan, Hubei 430200, China
    2. Engineering Research Center of Hubei Province for Clothing Information, Wuhan, Hubei 430200, China
    3. Hubei Province 3D Textile Engineering Research Center, Wuhan, Hubei 430200, China
  • Received:2021-03-10 Revised:2021-07-29 Online:2021-11-15 Published:2021-11-29
  • Contact: GONG Xiaozhou E-mail:1493643391@qq.com

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Abstract:

In order to overcome the limitation of the traditional "flattening-restoring" weaving method for preparing three-dimensional textile preforms, T-shape three-dimensional woven fabrics with specified beam height and bottom thickness and one-time forming were woven based on orthogonal organization and warp binding ensuring weaving continuity and integral T-shape preforms.Through optimizing and improving the weaving process, two types of T-shape three-dimensional woven fabrics with binding yarns spanning different weft rows were woven, and the dimensions of different areas were measured. The results show that in a complete tissue cycle, in order to sink the floating line across the bottom area and meet the fabric size requirements, the number of yarns in the bottom area is about half of the total number of yarns. Moreover, when the weft yarn spans two weft yarn rows, the evenness and formability of the fabric surface are better.

Key words: 3-D woven fabric, preform, orthogonal structure, T-shape, formability, composite material

CLC Number: 

  • TB332

Fig.1

Warp section of T-structure woven fabric"

Fig.2

Schematic diagram of orthogonal structure"

Fig.3

Cross section of orthogonal structure. (a)Warp and weft direction chart; (b)Weave diagram"

Fig.4

Warp and weft direction weave cycle diagram of fabric with floating yarn"

Fig.5

Physical image"

Fig.6

Overall T-structure warp and weft yarn trend weave cycle diagram"

Fig.7

Overall T-structure fabric weave diagram"

Fig.8

Physical drawing of fabric ①"

Fig.9

Warp and weft direction weave cycle of junction yarn crossing two weft yarn rows"

Fig.10

Fabric weave diagram spanning two weft rows"

Fig.11

Physical drawing of fabric ②"

Tab.1

Number of warp and weft yarns in different regions"

试样编号 A区域 B区域
Rj Rw Rj Rw
a 22 42 12 22
b 22 42 22 20
c 22 84 22 40

Tab.2

Size of T-structure 3-D woven fabricmm"

织物类型 梁高H1 底面厚度H2 总高度H
织物① 2 4.5 6.5
织物② 3 4.0 7.0
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