Open AccessInvestigation into the color stripping of the pigment printed cotton fabric using the ozone assisted process: A study on the decolorization and characterization
Author(s) -
Ajinkya Powar,
Anne Perwuelz,
Nemeshwaree Behary,
Le Vinh Hoang,
Thierry Aussenac,
Carmen Loghin,
Stelian Sergiu Maier,
Jing Guan,
Guoqiang Chen
Publication year - 2021
Publication title -
journal of engineered fibers and fabrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.303
H-Index - 29
ISSN - 1558-9250
DOI - 10.1177/1558925021992757
Subject(s) - dyeing , cellulosic ethanol , materials science , pulp and paper industry , ozone , chemical engineering , cellulose fiber , scanning electron microscope , stripping (fiber) , cellulose , composite material , chemistry , fiber , organic chemistry , engineering
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.