Chemical treatment and adhesion in internally reinforced rayon fibers

by Modh, Haresh A.

The purpose of this research is to develop a sheath-core bigeneric composite fiber or yarn in which a previously oriented core fiber or yarn is coated by a skin of a second material. These composite materials exhibit properties similar to those of commercial blends of rayon and synthetic fibers. The diameter of the nylon 6 monofilament core fiber was forty-three microns and the coating applied to it was one micron. Polypropylene yarn was also coated with viscose and its properties tested. Strong adhesion between the core and skin is necessary for the durability of skin material on the core fiber. A chemical treatment of acid and bleach solutions on the nylon monofilament was used to improved adhesion of the skin material to the core fiber.