Sanodal Red B3LW (Red)
Red B3LW is a uniform, water-soluble dye with excellent lightfastness, weather resistance, and heat resistance, suitable for both indoor and outdoor use.
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Product Details
Red B3LW is a uniform, water-soluble dye with excellent lightfastness, weather resistance, and heat resistance, suitable for both indoor and outdoor use.
1. Dye Technical Parameters
Appearance:Red granules
Composition:Heavy metal azo complexes
Density:600g/l
Solubility:150g/l, 20°C
Storage period:Can be stored for 10 years in sealed original packaging
Safety data:See the Safety Data Sheet (MSDS)
2. Application Conditions
|
Concentration
|
Dyeing temperature
|
Dyeing time
|
|
|
Standard film thickness (12um)
|
0.05 - 5g/l
|
25 - 60℃
|
10 - 20min
|
|
SanodalFilm thickness (25um)
|
4 - 5g/l
|
55 - 60℃
|
30 - 40min
|
Applicable pH:5.5±0.5
pH adjustment:It is recommended to add Anodal Dye Buffer to adjust to pH 5.6
Water quality requirements:Deionized water
Sealing requirements:It is recommended to use Anodal® ASL (one-step or two-step)
3. Bath Solution Preparation
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 dye in hot water (80-90°C). Then, stir the pre-dissolved stock solution into the dyeing bath.
4. Dye Lightfastness
Red B3LW has excellent lightfastness.
Lightfastness:Grade >8 (ISO 2135).
5. Instructions
- Undyed areas can be removed with 30% diluted nitric acid. The best removal method is with 10% diluted nitric acid + 5% potassium permanganate. After treatment, neutralize in a 5% sodium bisulfite solution for 1-5 minutes.
- This dye is sensitive to sulfate and aluminum; workpieces that have been anodized must be thoroughly cleaned before dyeing.
Preventing Mold Growth:Adding a biocide can inhibit mold growth for a long time. It is recommended to use 25-50mg/L Nipacide Cl 15 MV (for details, please refer to relevant technical documentation).
6. Treatment of Waste Dyeing Liquor
Waste dyeing liquor can be treated with Anodal WT-1; the table below lists the treatment methods for dyeing waste liquid:
| Precipitation method |
FeCl3, 40%
(ml/g Dye)
|
Alkali etching solution
(ml/g Dye)
|
Anodal WT-1
(ml/g Dye)
|
Residual dye in filtrate
(mg/l)
|
| A | 4.0 | - |
0.4
|
<1
|
| B | 4.0 | - |
0.4
|
~1.5
|
| C | - | 4.0 | 0.8 |
~ 80
|
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