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Sanodure Fast Gold L (Solid Gold Color)

Fine powder, yellow-brown, heavy metal complex azo dye

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Dyes

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Product Details

1. Dye Technical Parameters
Appearance:Fine powder, yellow-brown
Composition:Heavy metal complex azo dye
Density:600g/l
Solubility:At 20°C, 60g/l
Storage period:Can be stored indefinitely in sealed original packaging
Safety data:See safety data sheet for details.
2. Application Conditions

 
Concentration
Dyeing temperature
Dyeing time
Light color
0.1 - 0.2 g/l
25 - 60°C
10 - 20 min
Medium color
0.3 - 0.5 g/l
25 - 60°C
10 - 20 min
Dark color
1.0 - 3.0 g/l
25 - 60°C
20 - 30 min


Applicable pH:5.5±0.5
pH buffer:It is recommended to add Anodal Dye Buffer to adjust pH to 5.6
Water quality requirements:Best to use deionized water
Sealing requirements:It is recommended to use Anodal® ASL (one-step or two-step)
3. Preparation of Bath Solution
When preparing the bath solution, it must be fully dissolved.
It is best to pre-dissolve in a separate container using 5 times the amount of hot water (80-90°C) compared to the dye. Then, stir the pre-dissolved stock solution into the dyeing bath.
4. Dye Lightfastness
Dark color (12 µm):7-8 (ISO 2135)
5. Instructions

  • This dye colors quickly
  • Unsealed dyeing can be removed with nitric acid.
  • This dye is sensitive to sulfate and aluminum, so workpieces that have been anodized must be thoroughly cleaned before dyeing.

6. Treatment of Waste Dyeing Solution
Waste dyeing solution can be treated with Anodal WT-1, and the following table lists the treatment methods for dyeing waste liquid:

Precipitation method
FeCl3, 40%
(ml/gDye)
Alkaline etching solution
(ml/gDye)
Anodal WT-1
(ml/gDye)
Residual dye in filtrate
(mg/l)
A
5.0 
-
0.8 
12
B
5.0 
-
0.8 
7
C -
5.0 
1.5 10

 

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