Abstract:
This project report present Comparative study on knit fabric (single jersey, rib and interlock) with
reactive dyes.in this report we have try to show the difference of GSM for knit fabric in different
stage of production. We have seen that in grey fabric GSM is greater than pretreated GSM and after
dyeing GSM is higher than grey and pretreated GSM. For test these fabrics we have done color
fastness test, rubbing fastness test.for dyeing these three different knitted fabrics (single jersey,
interlock, rib) fabrics we used same chemicals. Before fabric dying we measured Gram per square
meter (GSM), Strength, Wales per inch (WPI),then we dyed the fabric and also measured Gram per
square meter (GSM), Strength, color fastness. We took the values by the analysis with grey scale
(color change and staining). This report takes us through all the details of every knowledge and
experience gathered during this internship period.
Description:
Reactive dyes are colored compounds which is capable of reacting chemically with a
substrate to form a covalent dye substrate linkage in fiber such as hydroxyl groups in
cellulose, amino, thinly and hydroxyl groups in wool or amino groups in polyamides.
Between the functional groups bond formation result is high wet fastness properties.
Reactive dyes are most commonly used in dyeing of cellulose like cotton, wool is also
dyeable with reactive dyes. Reactive dyeing is the most important methods for the coloration
of cellulosic fibers.
