The Bleaching of Soybean Fabric by Different Treatments Combined with Ozonation

Abstract

This article is about bleaching of soybean fibers. Although the studies related to dyeing of soybean fibers have been found in the literature, little has been reported on the effect of bleaching. The natural color of soybean protein fibers is pale yellow or cream, and it is therefore usually necessary to bleach them to improve their whiteness. Different bleaching treatments combined with ozonation were performed in order to establish the effect on whiteness, yellowness, lightness, wettability, hydrophility, moisture sorption, and fiber damage properties of knitted soybean fabric. As a result of study, bleaching process combined with ozonation (ozonation + oxidative bleaching + reductive bleaching) supplied soybean fabric with a white appearance (highest whiteness degree), highest hydrophility, and minimal fiber damage.

Keywords:

• Ozone
• Bleaching
• Hydrogen Peroxide
• Oxidative Bleaching
• Reductive Bleaching
• Sodium Dithionite
• Soybean Fibers

ACKNOWLEDGMENT

This study follows the course of the doctoral dissertation “An Investigation the Use of Eco-Friendly New Methods and Technologies at Pretreatment Process of Cellulosic Fibers and New Generated Fibers” presented by Seher Perincek at Ege University, Izmir, Turkey.