Sanodure Olive Brown 2R
Olive Brown 2R is a uniform water-soluble dye suitable for aluminum anodizing adsorption dyeing. Olive Brown 2R is particularly suitable for military products and is mainly used to blend into different shades of black. This dye can be used to mix with other colors, for example: to imitate overall coloring or electrolytic coloring, and it has good price competitiveness for indoor use, recommended only for indoor applications.
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Olive Brown 2R is a uniform water-soluble dye suitable for aluminum anodizing adsorption dyeing. Olive Brown 2R is particularly suitable for military products and is mainly used to blend colors to create different shades of black.
This dye can be used to blend with other colors, for example: to imitate overall coloring or electrolytic coloring, and it has good price competitiveness for indoor use, recommended only for indoor applications.
1. Dye Technical Parameters
Appearance:Granular, black-brown
Composition:Metal azo dye complex
Density:600 g/l
Solubility:At 20°C, 30g/l
Storage period:Under sealed original packaging, it can actually be stored permanently.
Safety data:See the Safety Data Sheet (MSDS) for details.
2. Application Conditions
| Concentration | Dyeing temperature | Dyeing time | |
| Light color | 0.05 - 0.2 g/l | 25 - 60°C | 10 - 20 min |
| Medium color | 0.3 - 0.8 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 adjustment:It is recommended to add Anodal Dye Buffer to adjust to pH 5.6.
Water quality requirements:Deionized water is recommended.
Sealing requirements:Anodal® ASL is recommended.
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 five 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
Dark color (12 µm):6 (ISO 2135)
5. Instructions
Ion sensitivity:This dye is very sensitive to aluminum and sulfate ions; workpieces that have been anodized must be thoroughly cleaned before dyeing.
Room temperature dyeing:Dyeing in a bath solution at 20 °C / 68 °F is more stable than at 60 °C / 140 °F. However, the dyeing concentration and time must be increased accordingly.
Dye removal:Undyed dye cannot actually be removed with dilute nitric acid or dilute sulfuric acid. The best removal method is with 10% dilute nitric acid + 5% potassium permanganate. After treatment, it should be neutralized in a 5% sodium bisulfite solution for 1-5 minutes.
Color blending:The following dyes are most suitable for blending with Olive Brown 2R.
|
Blending dye
|
Resulting color after blending
|
|
GrayNLLiquid
|
Olive Gray
|
|
Brown2LW
|
Green bronze
|
|
Solid bronzeL
|
Red bronze
|
|
Black2LW
|
Anthracite gray
|
6. Treatment of Waste Dyeing Solution
Waste dyeing solution can be treated with Anodal WT-1; the table below lists the treatment methods for dyeing wastewater:
| Precipitation method |
FeCl3, 40%
(Dye)ml/g Alkaline etching solution
|
Anodal WT-1
(Dye)ml/g Alkaline etching solution
|
Residual dye in filtrate
(Dye)ml/g Alkaline etching solution
|
)
(Dye)mg/l0.7
|
| A | 3.0 | - | < |
1.41
|
| B | 3.0 | - | < |
1.40.1
|
| C | - | 3.0 | 1,4 | 1.40.2 |
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