Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (06): 121-126.doi: 10.13475/j.fzxb.20210310207

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Research on treatment of hemp/jute interlaced fabric with sodium pyrophosphate and compound enzyme

ZHANG Yi1(), GAO Jinxia2, YU Chongwen3   

  1. 1. Zhejiang Industry Polytechnic College, Shaoxing, Zhejiang 312000, China
    2. Shaoxing Touzhen Textile Co., Ltd., Shaoxing, Zhejiang 312000, China
    3. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2021-03-31 Revised:2022-03-25 Online:2022-06-15 Published:2022-07-15

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Abstract:

The hemp/jute interlaced fabric is stiff in handle and polluted in alkali boiling chlorine bleaching. It is proposed to combined process with the sodium pyrophosphate and composite enzyme (laccase/acidic xylanase), taking the fabric weight loss ratio, fabric tensile strength(warp direction), bending length and wicking height as evaluation index, the single factor experiments and orthogonal test.Under the above optimal scheme,carried out the infrared spectrum test and performance comparison of the fabrics treated.The optimal process scheme was obtained as follows: the mass concentration of sodium pyrophosphate was 9 g/L, the treatment time was 90 min, the treatment temperature was 80 ℃, the mass concentration of laccase was 7.5 g/L, the mass concentration of acid xylanase was 6.0 g/L, the treatment time was 90 min, and the pH value was 5.0. The results showed that under the optimum solution, the fabric weight loss ratio was 18.26%, fabric tensile strength(warp direction) was 780 N,bending length reduced 24.82%, capillary effect increased 46.4%; the process can achieve the effect of alkali boiling chlorine bleaching (or alkali oxygen one bath), ecological and environmental protection,which has the potential of market development.

Key words: hemp, sodium pyrophosphate, jute, laccase, stiffness, weight loss ratio

CLC Number: 

  • TS102

Tab.1

Effect of mass concentration of sodium pyrophosphate on fabric properties"

焦磷酸钠质量
浓度/(g·L-1)		 织物质量减
少率/%		 织物断裂强
力(经向)/N		 弯曲长
度/cm		 芯吸高
度/mm
7 8.35 930 4.14 87.8
8 10.29 870 3.88 95.7
9 11.57 790 3.58 106.9
10 11.63 700 3.55 108.2
11 11.69 610 3.54 108.8

Tab.2

Effect of the treat times of sodium pyrophosphate on fabric properties"

处理时
间/min		 织物质量
减少率/%		 织物断裂强
力(经向)/N		 弯曲长
度/cm		 芯吸高
度/mm
45 7.29 950 4.18 85.5
60 8.55 900 4.01 91.4
75 9.38 830 3.94 97.6
90 11.55 780 3.60 107.1
105 11.21 770 3.66 106.5

Tab.3

Effect of the treat temperatures of sodium pyrophosphate on fabric properties"

处理温
度/℃		 织物质量减
少率/%		 织物断裂强
力(经向)/N		 弯曲长
度/cm		 芯吸高
度/mm
50 9.21 890 3.86 90.5
60 10.27 850 3.79 97.8
70 10.82 800 3.66 103.5
80 11.57 770 3.58 106.9
90 8.18 970 4.20 88.7

Tab.4

Factors and levels of orthogonal test with complex enzyme treatment"

水平 A
漆酶质量浓
度/(g·L-1)		 B
酸性木聚糖酶
质量浓度/(g·L-1)		 C
处理时
间/min		 D
处理液
pH值
1 6.5 5.0 60 4.5
2 7.5 6.0 75 5.0
3 8.5 7.0 90 5.5

Tab.5

Orthogonal design and results analysis with complex enzyme treatment"

试验号 A B C D 质量
减少
率/
%		 断裂
强力
(经
向)/
N		 弯曲
长度/
cm		 芯吸
高度/
mm
1 1 1 1 1 6.83 730 3.53 105.8
2 1 2 2 2 7.78 710 3.46 109.3
3 1 3 3 3 9.02 670 3.33 112.1
4 2 1 2 3 8.37 640 3.30 112.9
5 2 2 3 1 10.14 610 3.16 117.6
6 2 3 1 2 11.36 580 3.10 115.6
7 3 1 3 2 12.25 570 3.03 121.0
8 3 2 1 3 13.54 530 3.01 123.8
9 3 3 2 1 14.38 500 3.06 128.7
质量
减少
率		 K ¯ 1 7.87 9.15 10.57 10.45
K ¯ 2 9.95 10.48 10.17 10.46
K ¯ 3 13.39 11.58 10.47 10.31
R 5.52 2.43 0.40 0.15
断裂
强力
(经向)		 K ¯ 1 703 647 613 613
K ¯ 2 610 617 617 620
K ¯ 3 533 583 617 613
R 170 63 3 7
弯曲
长度		 K ¯ 1 3.44 3.29 3.21 3.25
K ¯ 2 3.19 3.21 3.27 3.20
K ¯ 3 3.03 3.17 3.16 3.21
R 0.41 0.12 0.11 0.05
芯吸
高度		 K ¯ 1 109.0 113.2 115.0 117.3
K ¯ 2 115.3 116.9 116.9 115.3
K ¯ 3 124.5 118.8 116.8 116.2
R 15.5 5.7 1.9 2.0

Tab.6

Analysis of variance"

方差来源 偏差平方和 自由度 F值 F临界值 显著性
A 16.51 2 412.7 F0.90(2,2)
=9.00		 显著
B 8.93 2 223.2 显著
C 0.26 2 6.50 不显著
D(误差) 0.04 2
A 444.53 2 32.7 F0.90(2,2)
=9.00		 显著
B 139.26 2 10.3 显著
C(误差) 13.56 2
D 62.88 2 4.7 不显著
A 0.228 2 45.6 F0.90(2,2)
=9.00		 显著
B 0.022 2 4.40 不显著
C 0.015 2 3.0 不显著
D(误差) 0.005 2
A 261.2 2 42.8 F0.90(2,2)
=9.00		 显著
B 48.1 2 7.9 不显著
C 7.5 2 1.2 不显著
D(误差) 6.1 2

Tab.7

Component content of hemp yarn and jute yarn before or after treatment%"

纱线
类别		 脂蜡
质		 水溶
物		 果胶 半纤
维素		 木质
素		 纤维
素
未处理大麻 1.58 7.37 3.95 16.58 11.19 59.33
处理后大麻 0.36 0.22 1.07 4.35 4.49 89.51
未处理黄麻 0.89 3.32 0.75 19.42 18.04 57.58
处理后黄麻 0.45 0.51 0.12 6.29 10.37 82.26

Fig.1

Infrared spectrum of two yarns before or after treatment.(a)Hemp yarn; (b)Jute yarn"

Fig.2

SEM images on surface of two yarns before and after treatment(×1 000).(a)Hemp yarns before treatment;(b)Hemp yarns after treatment;(c)Jute yarns before treatment;(d)Jute yarns after treatment"

Tab.8

Comparison of properties between treated and untreated on the hemp/jute interlaced fabric"

处理类型 织物质量
减少率%		 织物断裂强
力(经向)/N		 弯曲长
度/cm		 芯吸高
度/mm
未处理 0 940 4.23 80.5
焦磷酸钠处理 11.57 880 3.58 106.8
焦磷酸钠和复
合酶联合处理		 18.26 780 3.18 117.6

Tab.9

Dosage of chemical auxiliaries for different process"

工艺类别 化学助剂及质量浓度
碱煮氯漂 NaOH 4.5 g/L,NaClO 2.5 g/L,JFC 1.0 g/L,浴比1∶10
碱氧一浴 NaOH 6.8 g/L,H2O2 4.5 g/L,JFC 1.0 g/L,浴比1∶10
复合酶制剂 漆酶18 g/L,酸性木聚糖酶15.5 g/L,浴比1∶10
生化联合 NaOH 3.9 g/L,漆酶9 g/L,酸性木聚糖酶7 g/L,浴比1∶10
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