Example XI A size utilizing the reaction product of rice starch and 30 percent by weight of N,N-(2,3 epoxypropyl methyl aniline) based upon the weight of the rice starch is prepared in the same manner as set forth in Example X. The size is added to the fibers during their forming while it is at an elevated temperature, i.e. 125 to 135 F for example about 130 F. This is necessary in order to keep a