发明名称 Brush for powder cosmetics
摘要 A brush for powder cosmetics has S strands and Z strands of synthetic fiber hair materials at its tip. The brush for powder cosmetics is characterized in that the twisting pitches of S strands and Z strands at the brush tip part are 10 mm to 30 mm and when the tip of the brush is deflected to trap a cheek color, face powder, powder foundation or other powder cosmetic to be contained in the brush tip part, the powder can be trapped evenly over nearly the entire surfaces at the ends of brush hair materials.
申请公布号 US9326589(B2) 申请公布日期 2016.05.03
申请号 US201113985844 申请日期 2011.02.16
申请人 Nakamura Kenji;Nakamura Koji 发明人 Nakamura Kenji;Nakamura Koji
分类号 A46B9/02;A46B9/06;A46D1/00 主分类号 A46B9/02
代理机构 Knobbe, Martens Olson & Bear LLP 代理人 Knobbe, Martens Olson & Bear LLP
主权项 1. A makeup brush for powder cosmetics having S strands and Z strands of synthetic fiber hair materials at its tip, said makeup brush for powder cosmetics characterized in that wherein twisting pitches of S strands and Z strands of the hair materials are 10 mm to 30 mm and when the tip of the brush is deflected to trap the powder cosmetic to be contained in the brush tip part, the powder is evenly trapped over nearly entire surfaces at ends of brush hair materials, wherein the synthetic fiber hair materials are tapered by alkali treatment such that fine irregularities are chemically created on surfaces of the tapered hair materials, and said synthetic fiber hair materials have tensile characteristics of 20 cN/dtex to 40 cN/dtex in initial modulus and 35% to 95% in rate of recovery after 20% stretching.
地址 Osaka JP