Abstract

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The dyeing of nanocrystalline (NCC) cellulose powder extracted from corn cob (Saleh, 2015) was carried out using Reactive (Procion Violet H-3R), Disperse (Foron YellowS.E 2GL) and Direct (Solophenyl Yellow) dyes. The percentage exhaustion in each case was calculated to determine which of the dyes exhausted best. The fastness of the dyed NCC powder to washing, chlorination and light were also investigated to determine which of the dyes has the best fastness properties and which of the dyes is suitable for application in a particular area. Based on the exhaustion and fastness results, the disperse dye with overall excellent properties was chosen as the best dye for nanocrystalline cellulose dyeing. Fabrics were dyed alongside to serve as a control.

Keywords: Nanocrystalline cellulose powder, dyeing, exhaustion, optical density, stripping,ISO, washing,active chlorine, blue cards, grey scale