Development auxiliaries for dyeing polyester with disperse dyes at low temperatures

17th World Textile Conference AUTEX 2017 - Shaping the Future of Textiles

Carrion-Fite, F.J.^1 ; Radei, S.^1

Institute for Textile Research and Industrial Cooperation of Terrassa (INTEXTER), Department of Materials Science and Metalurgical Engineering (CMEM), Section in the Field of Textile Engineering (SAET), Universitat Politecnica de Catalunya (UPC), Colom 15, Terrassa, Barcelona

08222, Spain^1

关键词: Biodegradable carriers;    Disperse dyes;    Energy expense;    Expensive equipments;    High molecular weight;    Low temperatures;    Polyester dyeings;    Undesirable effects;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/254/8/082006/pdf
DOI  :  10.1088/1757-899X/254/8/082006

来源: IOP

【 摘 要 】

High-molecular weight organic compounds known as carriers are widely used to expedite polyester dyeing at atmospheric pressure at 100 °C. However, carriers are usually poorly biodegradable and can partially plasticize fibres. Also, dyeing at temperatures above 100 °C in the absence of a carrier entails using expensive equipment. In this work, we developed an alternative method for dyeing polyester at temperatures below 100 °C that reduces energy expenses, dispenses with the need to invest in new equipment and avoids the undesirable effects of non-biodegradable carriers. The method uses disperse dyes in a microemulsion containing a low proportion of a non-toxic organic solvent and either of two alternative development auxiliaries (coumarin and o-vanillin) that is prepared with the aid of ultrasound.