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| Direct Orange S |
| Alias：Direct Orange S；Aizen Primula Orange SH（HCC） |
| Color index：C.I. Direct Orange 26(29150) |
| English name：Direct Orange S；Aizen Primula Orange SH（HCC）；Atlantic Direct Fast Orange SF （ATL）；Diacotton Fast Orange S（MCI）；Direct Fast Orange S（NSK）；Direct Orange S （CNC）；Direct Orange SE （CKC）；Kayafect Orange S（KYK）；Kayaku Direct FAST Orange S（KYK）；Levacell Orange S（BAY）；Mitsui Direct Fast Orange S（MDW）；Shangdirect Orange S（SHD）；Solophenyl Orange D-SE（CGY）. |
Structural formula： |
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Process flows ： |
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| Characters：Red brown powder and soluble in water to become orange brown with red light. Solubility is 10g／L. |
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| Quality standard 津 Q /HG 2—255—83 |
Index name |
Index |
Apperance coloured light strength，分 Color fastness in wool wool fabrics impurity content insoluble in water，% moisture content，% fineness（60 meshes residue content），%
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red brown equal powder 100±3 of standard products similar to standard products accord to standard products ≤1 ≤5 ≤5
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| Use： It is used in silk, wool and other fabrics dyeing, and used in paper slurry dyeing. |
| Application performance：Colour fastness(grade) in cotton fabrics： |
Solarization |
Soaping |
Water leaching |
Perspiration |
Ironing |
Friction |
Acid and alkali resistance |
fading |
staining |
fading |
staining |
fading |
staining |
dry |
wet |
sulphuric acid |
acetic acid |
sodium carbonate |
3～4 |
3～4 |
1～2 |
4 |
2 |
4 |
2～3 |
4 |
4～5 |
3 |
2 |
4 |
4 |
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