Cotton Mercerized saree is a Handwoven design originated from pure cotton saree produced by the weavers of Fulia, West Bengal. Extra weft technique used to design the motifs on the body, and pallu. The mercerized cotton are embedded with each part of weaves.
Mercerisation is a textile finishing treatment for cellulose fabric and yarn, mainly cotton and flax, which improves dye uptake and tear strength, reduces fabric shrinkage, and imparts a silk-like luster.
The process was devised about 1844 by John Mercer who treated cotton with solutions of sodium hydroxide followed by washing. Mercer observed that the treated fabrics shrank, had increased tensile strength, and an increased affinity for dyes. In the original process of Mercer, no tension was applied. The product was termed fulled cotton, a nod to the process of fulling in woven wool fabric. Mercer regarded the increased affinity for dyes as the most important technical aspect. Mercer also experimented with sulfuric acid and zinc chloride solutions and discovered the parchmentising effect of sulfuric acid.