Irregular coats are removed in the process of production, and those which fall out during writing are those which could not be removed, and do not cause a problem if such hairs are only a small number. 製造の途中で不揃いな毛などをすいており、書字中に抜けてくるのは抜き出し損ねた残りであって少量であれば問題ない。 |