Patent ID: 9192226
Filing Date: 2015-11-24
Classification: A45D,A46D

Abstract:
1. A method for manufacturing a bristle head for a brush, comprising, a first step of obtaining a fiber bundle by reeling up a melt-spun synthetic fiber; a second step of obtaining a unit fiber bundle by cutting said fiber bundle in a direction perpendicular to a longitudinal direction; a third step of forming a tapered shape at a tip portion of each fiber included in said unit fiber bundle; a fourth step of forming a bristle head by isolating a part of said unit fiber bundle; and a fifth step of forming a conductive portion including a conductive material on a surface of each fiber by immersing said bristle head in a treatment bath accommodating a treatment liquid, wherein said treatment liquid is an aqueous solution containing at least one type of metal ion selected from the group consisting of Cu