Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (8): 40-47.doi: 10.13475/j.fzxb.20180300308

• Textile Engineering • Previous Articles     Next Articles

Appearance and performance of linen/colored polyester wrapping composite yarn

AO Limin1(), TANG Wen2, WANG Ailin3   

  1. 1. College of Material and Textile Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
    2. College of Business, Jiaxing University, Jiaxing, Zhejiang 314001, China
    3. Jiaxing Benseyama Co., Ltd., Jiaxing, Zhejiang 314000, China
  • Received:2018-03-01 Revised:2019-05-10 Online:2019-08-15 Published:2019-08-16

Abstract:

In order to investigate the color mixing characteristics of linen/colored polyester wrapping composite yarn and the influence of wrapping twist on color mixing effect and composite yarn properties, using colored polyester interlaced yarns as the outer wrapping yarns and the linen bleached yarn as the core yarns, composite yarns with different colors and wrapping twists were spun. The appearance characteristics of the composite yarns were analyzed, and the tensile properties, unevenness, yarn faults and hairiness of the composite yarns were tested and comparative analyzed. The results show that the composite yarns have the characteristics of bast color, wrapping twists are great at the slubs, presenting a light color, and twists are small at the thin places of core linen yarn, presenting a deep color, the composite yarn shows weak segment-colored effect along the longitudinal direction of the composite yarn. The color mixing texture and color depth of the composite yarn can be changed by changing the wrapping twist. The wrapping combination can improve the breaking strength and elongation of linen yarn, enhance yarn unevenness and reduce yarn defects and hairiness. When the wrapping composite yarn is stretched, non-simultaneous fracture may happen between the core yarn and the outer wrapping yarn, but the probability of occurrence will decrease as the wrapping twist increases.

Key words: linen/polyester wrapping composite yarn, wrapping twist, color mixing effect, composite yarn property, weak segment-colored, non-simultaneous fracture

CLC Number: 

  • TS104.7

Fig.1

Diagram of spinning process"

Fig.2

Yarn appearances of colored polyester yarn (a) and their composite yarn (b)"

Fig.3

Show boards of linen yarn and 3 kinds of colored composite yarn(partial). (a) Linen yarn; (b) Navy blue; (c) Royal blue; (d) Bright red"

Fig.4

Show boards of hemp-gray wrapped yarn with different wrapping twist(partial). (a)368 twist/m; (b)532 twist/m;(c)611 twist/m;(d)718 twist/m"

Fig.5

Typical tensile curve of non-simultaneous fracture"

Fig.6

Breaking process of outer wrapped yarn after broken of core yarn"

Tab. 1

Test results of tensile fracture"

包缠
捻度/
(捻·m-1)
断裂
强力/
cN
断裂
伸长/
mm
不同时断
裂百分
比/%
第2次断
裂强力/
cN
第2次断
裂伸长/
mm
368 744.52 9.84 88 193.80 43.80
532 748.16 9.50 28 193.58 33.39
611 699.68 9.81 24 197.04 32.36
718 669.58 10.08 8 199.18 28.27
涤纶丝 197.32 155.59
亚麻纱 624.14 8.48

Tab. 2

Test results of yarn unevenness, defects and hairiness"

包缠
捻度/
(捻·m-1)
条干
CVm/
%
疵点/(个·km-1) 毛羽值
H/
(mm·cm-1)
细节
(-50%)
粗节
(+50%)
粗节
(+100%)
棉结
(+400%)
368 29.92 1 268.3 2 106.7 390.0 110.0 1.69
532 29.20 1 066.7 1 896.7 365.0 78.3 1.55
611 29.79 1 075.0 1 755.0 362.5 95.0 1.44
718 27.27 845.0 1 395.0 197.5 27.5 1.21
亚麻纱 35.65 3 791.7 2 966.7 656.7 140.0 2.45
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