washing fastness

F. is 5%. Their fastness of light and soap washing are better than that of Direct Black BN.

选出其中三只染丝绸，色度5%的黑色与直接黑BN相近，皂洗牢度及耐光牢度都优于直接黑BN。

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Crease resistant finish of natural color cotton fabric with formaldehyde-free Through testing the color fastness to light, soap washing, rubbing and perspiration, we find that its color fastness almost meets dress need.

天然彩棉织物的无甲醛抗皱整理通过对天然彩棉织物的日晒牢度、皂洗牢度、摩擦牢度、汗渍牢度进行试验研究，发现其色牢度基本满足穿着的要求。

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Reactive dyes could combine with fiber to forming covalent bonds, but dyeing fastness was undesirable, especially washing fastness and wet rubbing fastness.

虽然活性染料可与纤维形成共价键，但用其染色后的棉及其混纺织物的色牢度却不尽人意，特别是水洗牢度和湿摩擦牢度。

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Make dyed fabrics with better washing fastness, perspiration fastness, rubbing fastness.

能使染色织物具有更佳的耐水洗牢度, 汗渍牢度, 摩擦牢度.

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