JP2010253045A5 - - Google Patents

Claims (5)

第１の樹脂製の筆軸の先端に、該筆軸と同軸状に前記第１の樹脂より軟らかい第２の樹脂製の筆毛部が取着一体化された化粧料塗布具において、前記筆毛部は、前記筆軸先端に取着される基端部と、前記基端部の前端面から前方に延出する複数本の筆毛とを備えた樹脂の射出一体成形体として構成されるとともに、前記各筆毛は、横断面略円形で、先端側ほど細いテーパ形状で、先端に丸みが設けられた化粧料塗布具であって、
前記筆毛部は、前記基端部成形用の固定側金型に対し軸方向に接近離反動作可能な可動側金型で成形されたもので、
前記筆毛部の基端部前端面には、左右方向等ピッチに筆毛を配置した筆毛の配列が上下方向等間隔に、かつ上下に隣接する配列を構成する各筆毛が左右方向に半ピッチずれるように配置されて、隣り合う筆毛が略等間隔に配置されており、
前記筆毛部は、前記筆毛の配列に沿った密着面を有し、該密着面には、筆毛を縦割りにした形状に整合する筆毛成形用キャビティ画成用の細い溝が形成された、複数の分割金型を積層一体化した可動側金型によって成形されたことを特徴とする化粧料塗布具。 In the cosmetic applicator , a second resin brush portion, softer than the first resin and coaxially attached to the tip of the first resin brush shaft, is attached and integrated. The bristle portion is configured as a resin injection-integrated molded body including a base end portion attached to the tip end of the brush shaft and a plurality of brush brushes extending forward from a front end surface of the base end portion. And each of the brushes is a cosmetic applicator having a substantially circular cross section, a tapered shape that is narrower toward the tip, and a rounded tip .
The brush portion is molded with a movable side mold capable of moving toward and away from the fixed side mold for molding the base end portion in the axial direction.
On the front end surface of the base end portion of the brush portion, the brush arrays in which the brushes are arranged at equal pitches in the left-right direction are equally spaced in the vertical direction, and the brushes constituting the vertically adjacent array are in the left-right direction Arranged so as to be shifted by a half pitch, adjacent brushes are arranged at approximately equal intervals,
The brush portion has a contact surface along the arrangement of the brushes, and the contact surface is formed with a narrow groove for defining a cavity for forming a brush that matches a vertically divided shape of the brush. A cosmetic applicator characterized by being formed by a movable mold in which a plurality of divided molds are laminated and integrated . 前記筆毛部には、太い筆毛と細い筆毛とが混在することを特徴とする請求項１に記載の化粧料塗布具。 The cosmetic applicator according to claim 1, wherein a thick brush and a thin brush are mixed in the brush portion. 前記筆毛部には、太い筆毛と細い筆毛とが略均等に分布することを特徴とする請求項２に記載の化粧料塗布具。 The cosmetic applicator according to claim 2, wherein thick brush hairs and thin brush hairs are distributed substantially uniformly in the brush portion. 前記筆毛部の外側寄りに太い筆毛が配置され、その内側寄りに細い筆毛が配置されたことを特徴とする請求項２に記載の化粧料塗布具。 The cosmetic applicator according to claim 2, wherein a thick brush is disposed near the outside of the brush portion, and a thin brush is disposed near the inside. 前記筆毛部の外側寄りに細い筆毛が配置され、その内側寄りに太い筆毛が配置されたことを特徴とする請求項２に記載の化粧料塗布具。 The cosmetic applicator according to claim 2, wherein a thin brush is disposed near the outside of the brush portion, and a thick brush is disposed near the inside.