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    • 10. 发明授权
    • Glass fiber bulk strand roving
    • 玻璃纤维原料粗纱
    • US4802331A
    • 1989-02-07
    • US98914
    • 1987-09-21
    • Jerome P. KlinkHellmut I. Glaser
    • Jerome P. KlinkHellmut I. Glaser
    • D02G1/00D02G3/18D02G3/22D02G3/24D02J1/02
    • D02G3/18D02G1/00
    • A glass fiber bulk strand roving that is made up of a multiplicity of strands, each of which is made up of a plurality of individual fibers, for example, 200 of such fibers. Each strand of the roving has a multiplicity of rather long, axially extending loops, for example, axially extending loops with a calculated length of at least 6 inches, and a multiplicity of shorter, unbroken, cross-axially extending loops that are formed in the axially extending loops of such strands. The axially extending loops and the cross-axially extending loops interengage and intertwine with one another to form a composite entangled structure. The roving of the present invention is made by a process that uses a finger wheel to form axially extending loops in strands and a spinner downstream of the finger wheel. The looped strands from the finger wheel pass through a relatively unrestricted passage in the spinner which imparts a twist to such a looped strands, and then through a relatively restricted outlet orifice that is downstream of the outlet of the spinner. A back-up or puddling of the looped strands occurs in the spinner near the outlet thereof, due to the axial length of the loops in the strands and the restriction in the outlet of the spinner in the form of the outlet orifice, and this back-up or puddling of the looped strands in the spinner, in conjunction with the spinning thereof, results in the formation of the cross-axial loops in the axial loops of the strands.
    • 由多根股线组成的玻璃纤维本体股粗纱,每条股线由多根单根纤维构成,例如200根这样的纤维。 粗纱的每条纱线具有多个相当长的轴向延伸的环,例如具有至少6英寸的计算长度的轴向延伸的环,以及多个较短的,不间断的横向轴向延伸的环,其形成在 这种股线的轴向延伸环。 轴向延伸的环和横向延伸的环彼此相互缠结并缠绕在一起形成复合缠结结构。 本发明的粗纱是通过使用指轮来形成轴向延伸的线圈和在指轮下游的旋转器的方法制成的。 来自指轮的环形绳股通过旋转器中的相对不受限制的通道,该通道向这种环状股线转动,然后通过在旋转器出口下游的相对受限的出口孔口。 由于纱线中的环的轴向长度和出口孔形式的旋转器的出口的限制,在其出口附近的旋转器中发生环状股线的后备或搅拌,并且该背面 在旋转器中的环状股线的一个或多个与其旋转结合导致在股线的轴向环中形成交叉轴向环。