Investigation into the color stripping of the pigment printed cotton fabric using the ozone assisted process: A study on the decolorization and characterization

Autor: Guoqiang Chen, Le vinh Hoang, Jinping Guan, Thierry Aussenac, Ajinkya Powar, Nemeshwaree Behary, Anne Perwuelz, Carmen Loghin, Stelian Sergiu Maier
Přispěvatelé: Transformations et Agro-ressources (UT&A), UniLaSalle
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of Engineered Fibers and Fabrics
Journal of Engineered Fibers and Fabrics, 2021, 16, pp.155892502199275. ⟨10.1177/1558925021992757⟩
ISSN: 1558-9250
DOI: 10.1177/1558925021992757⟩
Popis: International audience; Color stripping is one of the most convenient ways to rectify the various shade faults occurred during printing or dyeing process of textiles. But, the conventional chemical assisted process poses serious risk of the environmental pollution. Secondly, the chemical recycling of the cellulosic fibers may be disrupted due to the presence of the impurities like colorants, finishes, and the additives in the discarded textiles. So, there is a need to study ways to remove such impurities from the discarded cellulosic textiles in a sustainable manner. This work examines the decolorization of the pigment prints on cellulosic fabrics at pilot scale using an ozone-assisted process. The effect of varying pH, ozone concentration and the treatment time on the decolorization of the pigment prints was optimized using the response surface methodology technique. The effects of ozonation process parameters on the mechanical properties of cellulosic cotton fabric were measured. Decolorization of pigment printed samples was studied with respect to the surface effects by a scanning electron microscopy (SEM), and the chemical removal effects of ozonation treatment were studied using X-ray photoelectron spectroscopy. The possible mechanism regarding the action of ozone for the decolorization is discussed.
Databáze: OpenAIRE