Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (03): 110-115.doi: 10.13475/j.fzxb.20210304906

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Dyeing process for polyester fabrics with continuous pad dyeing method

HE Yingting1,2, LI Min1,2, WANG Ruifeng1,2, WANG Chunxia2, FU Shaohai1,2,3()   

  1. 1. Jiangsu Engineering Research Center for Digital Textile Inkjet Printing, Wuxi, Jiangsu 214122, China
    2. Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China
    3. National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian, Shandong 271000, China
  • Received:2021-03-12 Revised:2021-11-24 Online:2022-03-15 Published:2022-03-29
  • Contact: FU Shaohai E-mail:shaohaifu@hotmail.com

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Abstract:

In view of the energy consumption and wastewater treatment in the production of polyester dyeing caused by reduction cleaning for color fastness improvement, C.I. Disperse Blue 291 dispersion were prepared and was applied for continuous pad dyeing of polyester fabrics. The influence of dispersing property and particle size of C.I. Disperse Blue 291 dispersion on K/S value of dyed fabric was studied, the influence of adding adhesive, anti-migration agent and penetrant on dyeing effect of polyester fabric was analyzed, the influence of cationic fixing agent on color fastness of dyed polyester fabric was discussed, and the thermal performance and strength of dyed polyester fabric was analyzed. Experimental results show that the levelness, color fastness and K/S value of the dyed polyester fabric is improved, the dyed fabrics exhibit excellent dry rubbing fastness (5 grade), wet rubbing fastness (4-5 grade) and washing fastness (5 grade) as well as significant reduction of chemical oxygen demand (54.7%), the thermal performance and strength of the fabrics are virtually unaffected.

Key words: polyester fabric, pad dyeing, color performance, color fastness, chemical oxygen demand

CLC Number: 

  • TS193.5

Fig.1

Dyeing process"

Fig.2

Dispersion property of C.I. Disperse Blue 291. (a) Zeta potential; (b) Viscosity and shear stress"

Fig.3

Relationship between dispersion particle size and K/S value of dyed polyester fabric"

Tab.1

Effects of reagents type and dosage on color parameters and color fastness of dyed polyester fabric"

助剂 ΔE值 K/S值 耐摩擦色牢度/级 耐皂洗色牢度/级 皂洗残液
吸光度
种类 质量分数/% 干 湿 沾色 变色
防泳移剂PA 0 2.25 37.46 3~4 2 3~4 4 0.301
3 1.46 36.52 4 1~2 3~4 4~5 0.315
5 1.38 36.02 4~5 2 3~4 5 0.384
7 1.37 36.94 4~5 2~3 3~4 5 0.342
9 1.37 37.36 4 2~3 3~4 4~5 0.337
黏合剂DM-5128 0 1.20 37.08 3 2~3 3 4 0.521
3 1.25 34.29 4~5 3~4 3~4 5 0.283
5 1.28 38.28 4~5 3~4 3~4 5 0.257
7 1.26 38.03 4~5 4 4 5 0.221
9 0.99 34.83 4~5 4 4 5 0.180
渗透剂DXA-603 0 1.26 38.03 4~5 4 4 5 0.221
0.5 1.19 41.65 4~5 4 4 5 0.181
1 1.20 41.81 4~5 4 4 4~5 0.227
2 1.25 41.35 4~5 4 3~4 4~5 0.186
3 1.39 40.47 4~5 4 3~4 4~5 0.197

Tab.2

Effect of cationic agent on color fastness and COD value of dyed polyester fabric"

固色剂
质量分数/%		 耐摩擦色牢度/级 耐皂洗色牢度/级 COD值/
(mg·L-1)
干 湿 沾色 变色
0.0 4~5 4 4 5 444.6
0.6 5 4~5 4~5 5 286.4
1.0 5 4~5 5 5 235.2
2.0 5 4~5 5 5 212.7
3.0 5 4~5 5 5 201.4

Fig.4

Color effect of blank and dyed samples. (a) Front of blank sample; (b) Front of dyed sample (c) Fluff of blank sample; (d) Fluff of dyed sample"

Tab.3

K/S value, color fastness and COD value of washing residue of samples"

样布 K/S值 耐摩擦色
牢度/级		 耐皂洗色
牢度/级		 COD值/
(mg·L-1)
干 湿 沾色 变色
空白样 62.08 3 2~3 3 4 263.4
染色样 41.65 4~5 4 4 5 444.6
阳离子改性样 40.23 5 4~5 5 5 201.4

Fig.5

TG(a), DTG(b) and DSC(c) curves of original sample and dyed sample"

Tab.4

Effect of dyeing process on breaking strength of polyester fabrics"

试样 断裂强力/N 断裂强力损失率/%
经向 纬向 经向 纬向
原样 1 347 1 377 — —
染色样 1 849 1 325.5 -37.27 3.74
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