Method for molding shape of bristles of mascara brush for eyelashes, mold used in the method, and mascara brush molded by the method

A method of molding a shape of mascara brush bristles for

• eyelash makeup, the method comprising:
• preparing a mascara brush having brush bristles and iron core, the brush bristles extended in radial directions from the iron core, wherein the iron core is extended in a longitudinal direction;
• seating the brush bristles between a first mold and a second mold,
• wherein the first mold has at least one first molding slot and a first press portion, and the second mold has at least one second molding slot and a second press portion, and
• wherein each of the at least one first molding slot, the first press portion, the at least one second molding slot, and the second press portion is extended in the longitudinal direction;
• compressing the brush bristles by the first mold and the second mold, and forming a high-density brush bristle and a lower-density brush bristle, wherein each of the high-density brush bristle and the lower-density brush bristle is extended in the longitudinal direction, wherein the high-density brush bristle is formed by a compression molding by the first press portion and the second press portion, the lower-density brush bristle is formed by the at least one first molding slot and the at least one second molding slot, and the high-density brush bristle has a higher density than the lower-density brush bristle;
• wherein the step of forming the high-density brush bristle and the lower-density brush bristle comprises heating the first mold and the second mold;
• and
• drying the mascara brush having the high-density brush bristle and the lower-density brush bristle.