DESCRIZIONE
The invention provides a core yarn of a tough yarn for knitting and weaving a glove and the other knitted and woven fabric which are suitable for a worker using a cutting tool to wear, are excellent in a flexibility and an economic efficiency, prevent a folded end of a hard fiber from being exposed to apply a sense of discomfort to a wearer, and have a cutting resistance, and a tough yarn which uses the core yarn. A core yarn of a tough yarn is formed by compounding a hard fiber and a molten fiber, and fusion bonding the molten fiber to the hard fiber. Further, the tough yarn is formed by winding a winding yarn to the core yarn. A lower layer fiber may be further included between the hard fiber and the molten fiber.