When crude oil goes up, the cost of short fiber goes up, and then goes up. Short fiber raw materials PTA and ethylene glycol, in which PTA comes from crude oil. This week, the international oil price rose for five consecutive days, driving the prices of PTA and ethylene glycol, the raw materials of short fiber, to rise sharply. The rising cost, the increase of factory shutdown and maintenance, the downstream stocking and the spot of polyester staple fiber all increased obviously, which obviously supported the cost of polyester staple fiber.