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This work aims on the assessment of mercerizing efficiency as well as the effect of mercerizing condition on physical properties of cotton knit fabric and subsequently the dyeing properties of mercerized textiles. Cotton knit fabrics were mercerized by varying the concentration of caustic soda and the mercerized fabrics were dyed with 3% Reactive dyes by varying dyeing temperature. Mercerizing efficiency was assessed by BAN and physical properties were assessed in terms of moisture regain, tensile strength and brightness of cotton goods. It was found that all the parameters increased with the increase of concentration of NaOH. In terms of color strength and colorfastness properties, it was observed that, with the increment of dyeing time the shade became more prominent with better fastness rating.

In semi solid design, the parameters of the quality of the printed fabric were color fastness, level of print detail, color difference, print coverage, saw-tooth effect, line sharpness etc. Actually, printed fabric quality was evaluated by these parameters. Again, print coverage, saw-tooth effect, line sharpness, etc. were examined by estimating different distances, angles etc. in printed fabric and these factors were compared with image positives. Mesh opening effect on the quality of screen printed fabric was investigated after printing the semi solid design on knit fabric using different mesh count screens and different types of the link. To print semi solid design on knit fabric different types of ink as well as non-identical mesh count was used. Then mesh screen out come on the design and form of printed fabric in screen printing was examined. For the evaluation of semi solid design effect there remains two different methods.The first one is visual assessment and another way is microscope observation. Here, to determine the probability of the amount of ink flowing by the screen, mesh opening area of every screen was considered and it was done from respective digital microscope images.

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