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    • 5. 发明授权
    • Brush filaments
    • 刷丝
    • US5313909A
    • 1994-05-24
    • US971784
    • 1992-11-05
    • Mingchih M. TsengPhilip J. Sweeney
    • Mingchih M. TsengPhilip J. Sweeney
    • A46B3/22A46D1/00A46D1/04A61C17/00D01D5/34D01F8/12G01D13/00A46B9/06
    • A46B15/001A46D1/00A46D1/023D01D5/34D01F8/12
    • The invention provides novel, improved wear indicating brush filaments and novel, improved coextrusion process for their manufacture. Essentially, the filaments of the present invention are coextruded filaments which include a longitudinal surface providing a boundary about the cross-sectional area of the filament and the longitudinal surface and/or the cross-sectional area presents a two colored region adapted to provide a visual signal indicative of wear in response to filament use. The filaments can be natural or synthetic materials. In filaments of the present invention, the colored region provides an initial color or color intensity viewable to the user. As wear is produced by continuing use of the filaments, the intensity of the colored region changes to a point which signals the user that the filament no longer provides the requisite performance characteristics for effectively performing its assigned function.
    • 本发明提供新颖的,改进的磨损指示刷丝,以及用于其制造的新型改进的共挤出方法。 基本上,本发明的长丝是共挤出的长丝,其包括提供围绕长丝的横截面面积的边界的纵向表面和/或横截面区域呈现适于提供视觉的两个着色区域 指示响应于灯丝使用时的磨损的信号。 长丝可以是天然或合成材料。 在本发明的细丝中,着色区域提供可以看到用户的初始颜色或颜色强度。 当通过持续使用长丝产生磨损时,着色区域的强度变化到向使用者发出指示灯丝不再提供用于有效地执行其分配功能的必要性能特征的点。