Fancy, complex or novelty yarns (the three terms are synonymous) are usually uneven in size, varied in color, or modified in appearance by the presence of irregularities deliberately produced during their manufacture.

• 花式线通常具有变化的条干、变化的色彩,或在加工过程中生成一些不规则的外观。花式单纱是在生产中加上粗结或结子而构成的。