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Basic dyes series
Direct dyes series
Acid dyes
Acid dyes series
L-Valine methyl ester hydrochloride
4-Aminoacetanilide
Permanent Yellow 83
Benzidine Yellow G
Sodium 3-Nitrobenzenesulfonate
Rhodamine B Liquid
Violet Liquid

Direct Sky Blue 5B
Alias：Direct Sky Blue B
Color index：C.I. Direct Blue 15 (24400)
English name：Direct Sky Blue 5B；Aizen Direct Sky Blue 5BH（HCC）；Atlantic Sky Blue A（ATL）；Atlantic Paper Sky Blue M（ATL）；Cartasol Blue 2GF（S）；Derma Blue R（S）；Diacotton Sky Blue 5B（MCI）；Diapaper Blue G（MCI）；Direct Sky Blue 5B（CNC，NSK）；Kayafect Blue C（KYK）；Kayafect Blue Y（KYK）；Kayaku Direct Sky Blue 5B（KYK）；levacell Blue S（BAY）；Mitsui Direct Sky Blue 5B（MDW）；Pergasol Blue RA，RAW（CGY）；Shangdirect Sky Blue 5B（SHD）.
Structural formula：
Process flows ：
Characters：Blue powder and soluble in water to become red light blue solution. Solubity is 60g/l. insoluble in organic solvent.

Quality standard HG 2—307—82

Index name	Index
Apperance strength，separated coloured light Color fastness in wool wool fabrics impurity content insoluble in water，% moisture content，% fineness（80 meshes residual content），%	blue equal powder 100±3 of standard products similar to standard products accord to standard products ≤0.8 ≤8 ≤5

Use：Mainly used in cotton and others dyeing, and get good dyeing. It can be used in cotton and viscous direct printing.

Application performance：Colour fastness(grade) in cotton fabrics：

Dyeing dept
h%

Solarization

Water leaching

40℃Soaping

Perspiration

Ironing

Friction

sulphuric acid resistance

fading

staining

fading

staining

fading

staining

fading

staining

dry

wet

0.5 1.5 3

1 1～2 2

2～3 2～3 2～3

2 1～2 1～2

2～3 2 2

3 2～3 2～3

3～4 3～4 3～4

4 2～3 1～2

4～5 4 4

- - -

4～5 4 4

3～4 3 2～3

3 3 3