对于这种表面着色的特殊要求，一般染色工艺是达不到的。
With this special requirement of surface colouration, general dyeing process is not available.
如果面料的白度足够且能用以染色和印花的话，一般就不再需要洗涤和漂白了。
Scouring is not required and bleaching is usually also unnecessary since the whiteness is usually sufficient for dyeing and printing.
研究表明，一般情况下，活性染料的染色盐效应随着活性染料荷质比的增大而增强，但染料分子量过大或过小时例外。
Based on research it indicated that salt sensitivity strengthened with the increase of the ratio of electronic charge to quality except for extra large and small molecular weight of dye.
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