Heavy metals in textile wastewater represent a major environmental problem, and are a potential danger to human health when present on textiles. Furthermore, the presence of some metals influences the production of textiles. Heavy metals are often used as oxidizing agents, as metal complex dyes, dye stripping agents, fastness improvers, and finishers. Thus, they act as hazardous sources through...

This work presents the valorization of Millettia laurentii carpentry sawdust waste into sustainable natural dye for ecological dyeing and functional finishing wool textiles. A simple aqueous extraction method was used to isolate dye, then extracted bio-dye subjected different qualitative quantitative analyses. Wool yarns were dyed in conjunction with metal salts (aluminum sulfate, ferrous coppe...

The acid-base indicator properties of aqueous and ethanol extracts from calyces of H. sabdariffa (Zobo) and a dye obtained from the ripe fruits of Basella alba (Indian spinach), two local plants, were investigated. A purple coloured dye obtained from the ripe fruits of Basella alba showed a λmax at 580nm, absorptivity of 0.2269 and was found to be photochemically unstable. A deep red coloured d...

Newfangled vinylsulfone (VS) based fiberreactive dyes were synthesized and applied to mill desized, bleached and mercerized textile fabric (100% cotton). Padthermosol dyeing method was utilized due to less hazardous environmental affects and high dye fixation to optimize dyeing quality parameters i.e. salt concentration, pH, dyeing time and dyeing temperature. The pretreated and dyed cotton fab...

Using Annosol Reactive Blue DS dye as the colorant, an inkjet printing ink was developed, and its rheological properties dynamic surface tension were evaluated for use in dry heat transfer of patterns on bio-based nylon 56 cotton interwoven fabrics. In particular, effects parameters fabrics investigated. The results revealed that optimal custom-produced are follows: hot pressing at 130 °C under...

A series of disperse dyes, 9,10-anthraquinone containing dithiocarbamate, thiourea and triazole fragments, were prepared via consecutive refunctionalization aminoanthraquinones in our previous studies their structures confirmed by the 1H-, 13C-NMR, IR spectra, LC-MS elemental analysis data. The obtained compounds applied on polyester fabrics exhaustion method at 130?C pH 4.0-5.0, dyeing propert...

Polymeric dyes are composed of optically chromophoric groups bound to or into polymers 1 which offer the advantage of allowing a range of physical properties, such as solubility, absorption, migration, and viscosity, that are tunable. They do not sublime, are nonabrasive,and generally have low toxicity. The range of products possible offered by the joining of the fields of polymer chemistry and...