A water/cottonseed oil bath with controllable dye sorption for high dyeing quality and minimum discharges

JOURNAL OF CLEANER PRODUCTION

卷:236

Article

Mu, Bingnan¹  Liu, Linyun²  Li, Wei¹  Yang, Yiqi^1,3,4 

[1] Univ Nebraska Lincoln, Dept Text Merchandising & Fash Design, 234 HECO Bldg, Lincoln, NE 68583 USA

[2] Jiangnan Univ, Minist Educ, Key Lab Sci & Technol Ecotext, 1800 Lihu Rd, Wuxi 214122, Jiangsu, Peoples R China

[3] Univ Nebraska Lincoln, Dept Biol Syst Engn, 234 HECO Bldg, Lincoln, NE 68583 USA

[4] Univ Nebraska Lincoln, Nebraska Ctr Mat & Nanosci, 234 HECO Bldg, Lincoln, NE 68583 USA

关键词: Controllable emulsion dyeing;    Cottonseed oil;    High fixation;    Reactive dyes;    Cleaning dyeing;    Low discharge;   

DOI  :  10.1016/j.jclepro.2019.07.041

来源: Elsevier

【 摘 要 】

We developed a clean reactive dyeing system for industrialization by controlled demulsification of the dyeing medium containing cottonseed oil. Low dye fixation and high pollution are the major problems of conventional aqueous reactive dyeing. Current alternative dyeing technologies have their deficiencies such as undesired dyeing quality and toxic discharges. Semi-stable emulsion dyeing could achieve high levelness and fixation of dyes by adjusting the demulsification speed of dyeing medium and water content in the system on a pilot scale. Compared to aqueous dyeing, up to 47% dyes could be saved to obtain the same shade in semi-stable emulsion dyeing. Dyeing levelness of emulsion dyeing has no significant difference from that of aqueous dyeing. Dye discharge using the semi-stable emulsion system was reduced by 90%. Discharges of salt and dispersing agents were eliminated. More than 99.8% of cottonseed oil could be recycled. (C) 2019 Elsevier Ltd. All rights reserved.

【 授权许可】

Free