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Reactive Dyes for Single-Bath and Single-Stage Dyeing of Polyester-Cellulose Blends

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Abstract:

Cellulose fibres were dyed with selected dyes containing 3’-carboxypirydyno-triazine reactive systems. The dyeing processes were carried out at a temperature of 130 oC in phosphate buffers within a pH range of 6-8. It was found that the degree of dye exhaustion and degree of dye fixation with cellulose fibre are high, which confirms the usefulness of these dyes for dyeing cellulose fibres in a neutral medium at the specific temperature while dyeing polyester fibres (130 oC). The results indicate the possibility of using dyes of this type in mixtures with disperse dyes for the single-bath and single-stage dyeing of polyester-cellulose blends.

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Reactive dyes, 3’-carboxypirydyno-triazine reactive dyes, exhaust dyeing of cotton, dyeing cotton-polyester blends

Published in issue no 6 (54) / 2005, pages 75–78.

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