Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (12): 49-53.doi: 10.13475/j.fzxb.20200503605

• Textile Engineering • Previous Articles     Next Articles

Relations of pore size and distribution characteristics of down-proof fabric with breathability and anti-drilling property

DONG Tiantian, WANG Lei, GAO Weidong()   

  1. Key Laboratory of Eco-Textiles(Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China
  • Received:2020-05-18 Revised:2020-09-05 Online:2020-12-15 Published:2020-12-23
  • Contact: GAO Weidong E-mail:gaowd3@163.com

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Abstract:

In order to develop high-quality down-proof fabrics, and explore the impact mechanism of pore size and distribution characteristics on down-proof fabric, the pore size, permeability and down-proof performance of 10 types of different down-proof fabrics were tested by capillary flow porometer, permeability meter and anti-drilling property tester. The relations between the pore size and distribution characteristics and the breathability and anti-drilling property of the down-proof fabrics were analyzed. The results show that the pore size distribution follows well the normal distribution, and the correlation coefficient between the mean aperture and standard deviation is 0.99. For the down-proof fabrics with the same material and structure, the permeability decreases when the mean pore size gets smaller. The determination coefficient of the fitting equation between the number of pile bored and the mean pore size is 0.94. When the mean pore size is less than 8 μm, the number of drill down penetrating fabric is less than 23. The breathability to drilling ratio (the ratio of permeability and the number of drilled down) is proposed to evaluate comprehensive the anti-drilling property and breathability. It is found that the less the pore size variation coefficient is, the larger the breathability to drilling ratio becomes, and the better comprehensive performance the fabrics have.

Key words: down-proof fabric, pore size distribution, breathability, anti-drilling property, breathability to drilling ratio

CLC Number: 

  • TS101.91

Tab.1

Structural specifications of fabric samples"

面料
编号		 原料 试样组织 线密度/tex 织物密度/(根·(10 cm)-1) 总紧度/%
经纱 纬纱 经纱 纬纱 经向 纬向
1# 棉 涤纶 经缎纹 7.3 5.6 906 630 96.0
2# 棉 涤纶 经缎纹 7.3 5.6 953 768 98.6
3# 棉 涤纶 平纹 14.6 11.8 571 319 88.7
4# 棉 涤纶 平纹 14.6 5.6 571 610 91.4
5# 棉 涤纶 平纹 9.7 8.2 551 512 84.0
6# 棉 棉 经缎纹 4.9 4.9 1 035 933 97.1
7# 棉 棉 经缎纹 5.8 8.1 906 709 94.8
8# 棉 棉 经缎纹 5.8 8.1 906 728 95.2
9# 棉 棉 经缎纹 5.8 8.1 906 748 95.6
10# 棉 棉 平纹 9.7 8.1 551 571 85.0

Fig.1

Sampling diagram"

Fig.2

Pore size distribution of down-proof fabric"

Tab.2

Parameters of fitting equation for normal distribution of pore size distribution of down-proof fabric"

面料编号 孔径均值/μm 标准差/μm R2
1# 7.9 6.5 0.95
2# 5.1 3.3 0.87
3# 4.3 3.7 0.91
4# 11.0 9.5 0.97
5# 11.9 11.0 0.75
6# 5.2 3.5 0.99
7# 10.2 8.3 0.97
8# 8.5 7.3 0.93
9# 5.4 3.8 0.97
10# 12.3 10.5 0.98

Tab.3

Relationship between breathability and mean pore size of down-proof fabric"

面料编号 孔径均值/μm 透气率/(mm·s-1)
1# 7.9 12.8
2# 5.1 11.8
3# 4.3 5.4
4# 11.0 10.0
5# 11.9 9.9
6# 5.2 10.4
7# 10.2 18.0
8# 8.5 16.3
9# 5.4 13.9
10# 12.3 19.3

Tab.4

Relationship between anti-drilling and mean pore size of down-proof fabric"

面料编号 孔径均值/μm 钻绒根数
1# 7.9 22
2# 5.1 15
3# 4.3 9
4# 11.0 35
5# 11.9 42
6# 5.2 10
7# 10.2 23
8# 8.5 21
9# 5.4 11
10# 12.3 50

Fig.3

Relationship between mean pore size and number of drilled piles"

Tab.5

Coefficient of pore size variation and through drilling ratio results of down-proof fabric"

面料编号 变异系数 透钻比
1# 0.819 0.582
2# 0.637 0.787
3# 0.860 0.600
4# 0.865 0.286
5# 0.925 0.236
6# 0.681 1.040
7# 0.813 0.783
8# 0.856 0.776
9# 0.694 1.264
10# 0.856 0.386
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