Test method of core spun yarn quantity and spandex content is discussed.To induce the soybean fiber spandex core spun yarn fineness and spandex content compute formula, use in practicality production.

• 对包芯纱定量和氨纶丝含量的测试方法进行了探讨,推导出大豆纤维氨纶包芯纱特数及其含量的计算公式,可用于实际生产设计和测算。