Knitting is a technique of producing fabric from a strand of yarn or wool. Poplin traditionally consisted of a silk warp with a weft of worsted yarn. Hosiery garments are the product of hosiery fabric produced from hosiery yarn. The fabrics are created by spinning the PET flakes into thread and yarn. Factories produced both cotton yarn and finished textiles. It is based on the conversion of fibre into yarn, yarn into fabric. The cotton yarn and cloth was exported from Bharoch. Embroidery is available with a wide variety of thread or yarn color. Most denim yarn is composed entirely of cotton. There are many forms of yarn dyeing. Byssinosis commonly occurs in workers who are employed in yarn and fabric manufacture industries. The women exclusively make yarn and weave. Individual fibers can be turned into a yarn. Tenacity is the customary measure of strength of a fiber or yarn. Seaweed is used for the production of bio yarn (a textile).