Knowledge of various types of fabric, their cost & width of fabric, is necessary for good sewing. Scissors Shears Pinking Shears Seam ripper Thread clipper Embroidery scissors 2. Needles: The best quality needles are always essential for good sewing. Points must be sharp, smooth and well polished for quick sewing. Select needle according to type of stitches.

4. The filaments are passed through a mild sulfuric acid bath to coagulate them and to remove the copper. 5. The skeins are washed and rinsed. 6. The yarns are sorted according to denier. 3.2 .4 Properties of Rayon: : Shape : Controlled by manufacturer. Diameter varies from 12 to 40 microns.