Abstract

In this research, the process of dyeing polyester/cotton fabrics usingdisperse/reactive dyestuffs in one method dyeing processes was investigated. Inthe order to improve the adhesion of chitin to the surface of polyester/cotton fibers,pre-treatment in NaOH solutions was performed. The colour and rubbing fastnessproperties of the chitin-deposited polyester/cotton fabrics were assessed. Thecolour difference between the dyed blank samples and samples dyed in NaOH and/or different viscosity chitin treatment was estimated. The data obtained showsthat it is possible to dye polyester/cotton fabrics finished by chitin with only onedisperses/reactive dyestuff. The dyed samples showed good rubbing and washingcolour fastness properties within the range of colour change. The colour strength ofthe dyed samples increased with the increased deposition of chitin on the fabric.

Key words: Disperse/reactive dyestuff, one bath method, polyester/cotton fabric,chitin biopolymer, sulphatoethylsulphonyl.