Abstract： Optim is dyed with Lanasol CE series dyes by micro-suspension technology, and the dyeing result is compared with that by traditional process. The optimal micro-suspension dyeing process is determined as follows： formic acid 1.5% （owl）, micro-suspension promoter WR1.0% （owf）, micro-suspension promoter TS 0.5 % （owl）, dyestuff 5% （owf）. The results show that micro-suspension dyeing increases the dye uptake percentage and colour fixation rate significantly; improves the handle and bulkiness without damaging the colour fastness of the dyed fabric.
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