对针织坯布生产中常见的布面起毛和“中央线”疵点产生的原因进行了分析，并从机械、生产及技术等角度提出了一些改善措施。
This paper analyses the reasons of facing and "Central Line" fault in producing gray knits and puts forward some countermeasures from the aspects of machine, production and technique.
分析了油丝筒子纱染色的特点及在染色中可能产生的疵点和预防措施，并着重论述了油丝筒子纱染色的工艺及应用。
The characteristics of package dyeing of scutching tow are analyzed and possible defects associated with it as well as preventive measures are also given.
通过试验分析了美棉的物理性能，美棉纤维成熟度好，纺纱过程中杂质易排除，因而成纱疵点明显减少；
Physical property of American cotton was analyzed through test, American cotton fiber has good maturity, and the impurities were easy to excluded, so the yarn defects were obvious reduced.
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