| 摘要 |
<p>The invention relates to a process for dyeing natural and synthetic fibre blends with non-ionic chromogens, applicable in the field of textiles. According to the invention, the process consists in subjecting the natural cellulose or proteic component of the fibre blend to a chemical modification, either by impregnation in a bath containing 5...15% modifier, 10...20% moistening agent, 0.2...1% bleeding inhibitor and 64...84% water, at an absorbing rate of 60...100%, followed by storing the so treated wet textile material for 2 hours, or by depletion in a bath containing 5...25% modifier, 0.1...0.2% surface-active agent, up to 8% electrolyte, at a bath ratio of 1:20...1:50 and a temperature of 70...100A C, the bath pH value ranging between 4.5 and 11, followed by drying and fixing the modifier, the modified textile carrier being then dyed with dispersion colours, in aqueous baths, at the boiling temperature, at a bath ratio of 1:30...1:50 and a concentration of the colouring agent of 1...3%, in the presence of 0.1% surface-active agent and 0.1...0.3% accelerator.</p> |
