An investigation into the reaction of bifunctional reactive dye at various pH levels
Year: 1996
Type: article
Abstract: The bifunctional reactive dye Sumifix Supra Blue BRF, which has two different reactive groups (sulphatoethylsulphone and monochlorotriazine), was stored for 1 h at various pH before dyeing. Corresponding experiments were carried out with individual sulphatoethylsulphone and monochlorotriazine reactive dyes. The pH values of the solutions were set firstly by using free inorganic acid or base at 20d̀C and secondly by using various buffer solutions at 20d̀C and 60d̀C. The bifunctional dye always had relatively less unfixed dye than the corresponding monofunctional dyes at the various pH values examined. It is suggested that with this type of bifunctional reactive dyes on dyeing cellulose the sulphatoethylsulphone has the greater role to play in dye fixation.
Authors: Ayse Uygur, Michael Hall
Institutions: Marmara University, University of Greater Manchester
Language: English
Subfield: Building and Construction
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2007544446