Road Map for Wet Processing of Microdenier Polyester Fabric and Relevant Studies on its Dyeability

摘要

In the present paper, the advantages and disadvantages of microdenier polyester fabrics along with its problems and challenges associated with its wet processing,(including dyeing), have been breifly dealt with. Due to the delicate nature, low torsional and flexural rigidity, higher exposed surface area, higher rate of initial dye strike, etc., microdenier polyester fabrics pose certain difficulties in its wet processing, particularly in dyeing. The major problems in the wet processing of microfilament polyester fabrics have been mentioned and corresponding measures needed in case of its preparatory chemical processing, selection of suitable disperse dyes, dye auxiliaries, dyeing methods/machinery and post-treatment techniques, are highlighted based on the results of some of our recent studies to meet these challenges. A detailed study of our present research work on effect of different category of disperse dyes for efficient dyeing of microdenier polyester fabric has been reported. The main highlights of some of our study-results are also focussed on weight reduction treatment, solvent pre-treatment, dyeing methods including dye selection and post-dyed finishing treatments using some uv-absorbers and amino silicone finishess that are suitable for wet processing of polyester microfilament fabrics.