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    • 12. 发明授权
    • Process for making soil and stain resistant carpet fiber
    • 制作防污染地毯纤维的方法
    • US5464584A
    • 1995-11-07
    • US289056
    • 1994-08-04
    • Ling Yeh
    • Ling Yeh
    • D01D5/24D01D5/253D01F6/60D06M13/213D06M15/277D06M15/41D02J1/08D06M15/19
    • D06M15/412D01D5/24D01D5/253D01F6/60D06M13/213D06M15/277D06M7/00D06M2200/40
    • A method for producing carpet yarn produces yarn having substantial soil hiding, soil repelling and resistance to staining with acid dye characteristics. The yarn is made by forming at least one hollow trilobal fiber from a molten nylon polymer having an amine end group level below about 25 meq/kg, the fiber having a modification ratio of about 2 and a void volume of at least 3%; quenching the formed fiber sufficiently to solidify the molten nylon; immediately after quenching, at a yarn speed of at least 300 mpm, finishing the fiber with spin finish containing fluorochemical; fully drawing the finished fiber; texturing the finished yarn by a hot fluid texturing process; and subsequently, applying to the textured yarn a sulfonated stainblocker, the stainblocker being heated to at least 50.degree. C. and applied while the fiber temperature is at least about 100.degree. C. in the stainblocker application step. The yarn travels at a rate sufficient to permit fixation of the stainblocker while minimizing penetration of stainblocker into the yarn.
    • 一种生产地毯纱线的方法产生具有显着的土壤隐蔽性,排斥性和耐酸性染色特性的纱线。 通过从胺端基水平低于约25meq / kg的熔融尼龙聚合物形成至少一种中空三叶形纤维,纤维具有约2的修饰率和至少3%的空隙体积来制造纱线; 使形成的纤维充分淬火以使熔融尼龙固化; 在淬火后立即以至少300mpm的纱线速度,用包含含氟化合物的旋涂完成纤维; 完成成品纤维的拉丝; 通过热流体纹理过程对成品纱线进行纹理化; 随后,在变形纱线上施加磺化污渍阻挡剂,将防污剂加热至至少50℃,并在防污染剂施加步骤中纤维温度至少为约100℃下施用。 纱线以足以允许防污剂固定的速率行进,同时最小化防污剂渗透到纱线中。