煮练是利用烧碱和其他煮练助剂与果胶质、蜡状物质、含氮物质、棉籽壳发生化学降解反应或乳化作用、膨化作用等，经水洗后使杂质从织物上退除。
n. scouring
misc. boiling off
... Desizing 退浆 Scouring 煮练（洗涤） How to judge—Test degree of whiteness 用白度的测试等级确认漂白效果 ...
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Secondly, through the comparative trials about several kinds of scouring technology,the most optimum technology was given to solve the leak problem of linen fabric. Thetechnical process: padding in the alkaline scouring solution→open-width steaming→washing→drying.
2、通过几种煮练工艺的分析，经试验优选出解决亚麻织物漏白的最优工艺，其工艺流程为：浸轧煮练碱液→平幅汽蒸→水洗→烘干。
参考来源 - 亚麻织物前处理工艺研究·2,447,543篇论文数据，部分数据来源于NoteExpress
在药棉的生产中，煮练和漂白是关键工序，可使纤维洁白柔软且具有良好的吸水性。
Scouring and bleaching are key steps in the production of absorbent cotton, which make the fiber white and soft with good absorbency.
煮练是一个对纤维、纱线、织物的清洁除杂过程。
Scouring is a cleaning process used to remove impurities from fibers, yarns or cloth.
这是一个液态加工过程，煮练有时是在压力和煮沸条件下进行的。
This is an aqueous process, and is sometimes done under pressure at the boil.
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