Part 1 of this chapter covers the chemical development of sulfur dyes and the general principles of their application to cotton. Sulfur dye reduction and oxidation are compared with those of vat dyes. The effect of different chemicals on each part of the dyeing process is discussed with respect. to their cost, benefits and environmental impact.

ZHIYUAN YANG, YANJUN TANG , JUNHUA ZHANG Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, 310018, China State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zheji...

A simple, one-pot method is presented whereby gold nanoparticles coated with a zwitterionic diblock copolymer are incorporated within single crystals of calcite. This may provide a versatile alternative to dyeing crystal with organic molecules and could be extended to create a series of new nanocomposite crystals with novel properties.

Wool fibres have been chemically modified by reduction I chlorination under acidic pH Ipre-swelling in conc. formic acid prior to their dyeing with indigenous reactive dyes of different molecular configurations to enhance the reactive dye uptake on wool fibre substrate. The pretreatment processes are inexpensive, less harmful and less time consuming as against the use of imported special wool r...

The dyeing of non-wovens in fabric form is interest for a range applications especially aesthetics. In this work, needle-punched non-woven fabrics were prepared by employing polyethylene-terephthalate (PET) fibres two different linear density and same mean fibre length four ratios three mass areal densities, while keeping all other process material variables constant. objectives the study to fi...

A method for the application of carbenes as reactive intermediates for surface modification of polymeric substrates has been developed; the efficacy of the process has been demonstrated by irreversible dyeing of polystyrene, polythene, nylon, silica, and controlled pore glass, and to a limited extent, polytetrafluoroethylene.