26 here the air jet nozzle 26 has a mechanism which uniformly jets a predetermined amount of the warm air in a uniform width in the width direction by adjusting the width of the blowing ports the distance between the blowing ports and the fibers f 2 etc the air jet nozzle 26 is configured so that the warm air is substantially uniformly jetted over the entire width of the laminate formed by the fibers f 2 the fibers f 2 can be formed so as to be the shape of the nonwoven fabric 1 according to the present embodiment by the suction function and the jetting function by the suction drum 22 and the air jet nozzle 26 the temperature of the warm air jetted from the air jet nozzle 26 is higher than the melting point of the fibers f 2 however the temperature of the warm air is adjusted not to be too high in order to prevent the nonwoven fabric 1 from being too stiff after the nonwoven fabric 1 is completed further the velocity of the warm air is determined so as to form the fibers f 2 into a desired shape generally the temperature and the velocity of the warm air jetted from the air jet nozzle 26 differ according to the material of the fibers to be used the basis weight the shape of the nonwoven fabric 1 after completion etc however the optimal temperature and velocity are preferably determined for example by experiments etc for example the temperature of the warm air jetted from the air jet nozzle 26 ranges preferably from 80 u00b0 c to 400 u00b0 c and the velocity thereof ranges preferably from 10 to 200 m.