TOYOKALON was developed in 1952, polyvinyl chloride (PVC) fibers and was named TOYOKALON in 1971. It has Excellent "yaki" features, soft touch, unique luster, with a rich hue, good flame retardant properties. The product is divided into 3 categories. T-type, R-type, M-type. It mainly can be used to process into the straight hair, weaving and a variety of  human hair wefts.