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    • 3. 发明授权
    • Production of a fabric containing polyethylene terephthalate fibers
having a reduced tendency to pill
    • 生产含有降低药丸倾向的聚对苯二甲酸乙二醇酯纤维的织物
    • US4666454A
    • 1987-05-19
    • US773765
    • 1985-09-09
    • Ronald N. DeMartinoJeffrey T. LangleyRobert D. Johnson
    • Ronald N. DeMartinoJeffrey T. LangleyRobert D. Johnson
    • C08G63/672D01F6/86D06P3/54C04B41/30
    • D01F6/86C08G63/672D06P3/54Y10S8/922
    • A fabric comprising polyethylene terephthalate fibers which exhibits a reduced tendency to pill upon encountering surface abrasion is formed on an expeditious basis. During the polymerization of the monomers required to form the polyethylene terephthalate, a quantity of polyethylene glycol (as described) is copolymerized therewith to form a polymer which exhibits a substantial intrinsic viscosity (as described). Following the melt-extrusion of the polymer to form fibers and fabric formation, the fabric is subjected to a dye bath at an elevated temperature wherein it is dyed, and the intrinsic viscosity of the polymer is reduced (as described). The presence of units derived from polyethylene glycol within the polymer chain has been found to lead to such intrinsic viscosity reduction within the dye bath. Accordingly, the resulting polyethylene terephthalate fibers present in the fabric tend to exhibit a strength which is closer to that of natural fibers such as cotton, and the tendency of the fabric to retain undesirable pills is greatly reduced.
    • 在快速的基础上形成包含聚对苯二甲酸乙二醇酯纤维的织物,其在遇到表面磨损时表现出降低的药丸倾向。 在形成聚对苯二甲酸乙二醇酯所需的单体的聚合期间,将一定量的聚乙二醇(如所述)与其共聚以形成显示特性粘度(如所述)的聚合物。 在聚合物熔融挤出以形成纤维和织物形成之后,将织物在升高的温度下进行染色浴,其中染色,聚合物的特性粘度降低(如所述)。 发现聚合物链内衍生自聚乙二醇的单元的存在导致在染浴中的这种特性粘度降低。 因此,存在于织物中的所得聚对苯二甲酸乙二醇酯纤维倾向于表现出更接近天然纤维如棉花的强度,并且织物保留不期望的丸剂的趋势大大降低。