Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (07): 119-127.doi: 10.13475/j.fzxb.20180703409

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Single-guide water non-fluorinated finishing of cotton spunlace non-woven materials

QI Guorui1, KE Qinfei1, LI Zu'an2, HUANG Zujian2, JIN Xiangyu1, HUANG Chen1()   

  1. 1. School of Textiles, Donghua University, Shanghai 201620, China
    2. Fujian Nanfang Co., Ltd., Nanping, Fujian 353000, China
  • Received:2018-07-16 Revised:2019-04-17 Online:2019-07-15 Published:2019-07-25

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Abstract:

In order to realize the industrialization of pure cotton spunlace non-woven materials single-directional water-free fluorine-free finishing process, self-made atomization equipment and the German fluorine-free water repellent RUCO-DRY ECO with a volume fraction of 0.67% were adopted to one-side water-repellent spray finish the cotton spunlace non-woven materials. This paper studied the physical and mechanical properties, contact angle and moisture management tester(MMT)performance of the materials after finishing for different spray time, discussed the reasons for the little change of physical and mechanical properties and the changes of contact angle and MMT performance, and carried out the diaper surface performance test of the finished cotton spunlace non-woven materials. The results show that its one-way transfer index (AOTC) can reach 1 093%, the liquid water dynamic transfer index (OMMC) can reach 0.960 6. Under the premise of ensuring pure cotton material does not reverse osmosis, the liquid penetration time can reach 4 s.

Key words: self-made spray device, pure cotton spunlace non-woven material, one-sided water repellent, non-fluorine finishing, side layer material of diaper

CLC Number: 

  • TS174.8

Fig.1

Self-made spray device"

Fig.2

Process flow chart"

Tab.1

Carding parameters"

梳理元件 喂给罗拉 锡林 杂乱辊 道夫 成卷
梳理速度/
(m·min-1)		 0.84 251 6.31 7.64 12.54

Tab.2

Spunlace parameters"

水刺工艺 速度/(m·min-1) 顺序 压力/kPa
预水刺 2 正 2 500
第1道 2 正 3 500
第2道 2 正 4 500
第3道 2 正 6 500
第4道 2 正 7 500

Fig.3

Comparison of SEM images before and after water spraying repellent finishing"

Fig.4

Comparison of FI-TR before and after water spraying repellent finishing"

Fig.5

Percentage increase in mass before and after water spraying repellent finishing"

Fig.6

Comparison of maximum breaking strength before and after water spraying repellent finishing. (a)MD direction;(b)CD direction"

Fig.7

Change in pore size before and after spraying finishing. (a)Average aperture; (b) Pore size distribution"

Fig.8

Air permeability changes before and after spraying finishing"

Fig.9

Hydrophobic contact angle before and after spraying finishing. (a) Hydrophilic surface; (b) Hydrophobic surface"

Tab.3

Liquid penetration when spraying time is 20, 25 and 30 s"

喷雾时间/s 方向 t/s B/% A/% C/%
20 ↓ 3.2 26 6 68
↑ 3.2 28 64 8
25 ↓ 4.0 20 5 75
↑ 4.0 25 75 0
30 ↓ 5.2 24 18 58
↑ 5.2 22 78 0

Fig.10

Liquid penetration process"

Tab.4

AOTC and OMMC performance rating table"

评语 单向传递指数
(AOTC)/%		 液态水动态传
递指数(OMMC)
非常差 <-50 0~0.2
差 <-50 0.2~0.4
好 100~200 0.4~0.6
非常好 200~400 0.6~0.8
极好 >400 >0.8

Fig.12

Schematic diagram of MMT for different spraying treatment time"

Fig.11

AOTC and OMMC for different spraying treatment time"

Fig.13

Appearance morphologies of samples A and B topography"

Tab.5

Liquid penetration time, slip amount and moisture return amount of samples A and B"

试样 液体穿透
时间/s		 滑移量/
g		 返湿量/g
A 1.06 0.092 3 0.052 2
B 2.24 0.918 1 0.124 8
A与B比值 0.47 0.10 0.42
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