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.

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如果您使用漂白，在5%稀释度的漂白水中浸泡10分钟，然后彻底地漂洗至少六次。

If you use bleach, soak your items for 10 minutes in a 5% bleach dilution, and then rinse at least six times thoroughly.

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其中一个参数是通过第一次漂白获得的地色白度，另一个参数是通过应用荧光增白剂获得的荧光白度工艺。

One of these parameters is ground whiteness which is obtained by first bleaching and another is optical whiteness process by optical brightening agent application.

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