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表2 色牢度数据（一次洗涤后）
Chart 2 Fastness Data
(after 1st Washing)

普通氨纶
General

易染氨纶
Easy to Dye

可染氨纶
Dyeable

L

80.761

78.239

64.408

A

6.843

11.995

34.863

B

36.772

44.162

74.94

△L

-2.521

-16.352

△a

5.152

28.019

△b

7.39

38.168

△E

9.355

50.092

注：△L为色调变化，在对比色牢度时，负值越低表明相对的色牢度越高
Note: △L means variation of color, the lower the negative value, the higher of the fastness