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
人造丝织物的退浆、煮练、漂白可以与某引起整理工艺同时进行。
Desizing, scouring, and bleaching of man - made fibers may be combined in some finishing operations.
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.
将织物以绳状方式送入煮布锅，煮练用的化学助剂通过泵的加压穿过织物。
The kier is loaded with cloth in rope form and the scouring chemicals are pumped through the cloth.
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