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Sanodure® Orange RL          Homogeneous, water soluble dyestuff for the adsorptive dyeing of anodised aluminium.    The main applications for Sanodure® Orange RL are:     · Indoor  · Jewel

Sanodure® Orange RL 
Homogeneous, water soluble dyestuff for the adsorptive dyeing of anodised aluminium. 
The main applications for Sanodure® Orange RL are:  
· Indoor 
· Jewellery 
Only recommended for interior use. 


1. Dye-specific Data 
Commercial form: fine granules 
Chemical character: Azo-dyestuff, unmetallized 
Bulking volume: 700 g/l 
Solubility in water: 40 g/l at 20°C 
Storage stability: practically unlimited, in closed original containers   
Ecotoxicological data: see safety data sheet.  
2. Application conditions  
Concentration, dyeing temperature and time 
 Concentration Dyeing temperature Dyeing time 
Bright shades 0.05 - 0.2 g/l 25 - 60°C 10 - 20 min 
Medium shades 0.3 - 0.8 g/l 25 - 60°C 10 - 20 min 
Dark shades 1.0 - 3.0 g/l 25 - 60°C 20 - 40 min 
pH-value: 6,0 +/- 0,5 
Water quality: preferably deionised 
Sealing: preferably with Anodal® ASL(one or two stage sealing). 
3. Setting the Dyebath 
When setting the dyebath, care must be taken that the dyestuff is well dissolved.   
Dissolve the dye preferably with hot water (80°C) in a separate container (approx. 5 parts water 
to 1 part dye). Then this mother solution will be added to the dyebath while stirring. 
4. Lightfastness of the Dyeings 
 Lightfastness of dark dyeings (12  µm): Note  5-6  (ISO 2135). 
 5. Special remarks 
- The dyestuff dyes very extensively. 
- Unsealed dyeings are virtually unstrippable in diluted nitric or sulphuric acid.  
  They can be  stripped in nitric acid 10 % + potassium permanganate 5 %.  
  After the treatment in Potassium permanganate, neutralization must be carried out for 1-5 min     
  in a sodium bisulphite 5 % solution. 
 - The dyebaths are sensitive to aluminium; anodized objects should therefore be 
  rinsed thoroughly before dyeing.  
- Prevention of mould formation  
  An addition of an antimicrobial product can inhibit mould formation for a long time.  
  We recommend the addition of Nipacide CI 15 (See Technical Information) 25 – 50 mg/l. 
6. Disposal of the dyebaths 
Spent dyebaths can be readily precipitated with Anodal® WT-1 Liquid. The method is 
described in detail in the Technical Information bulletin for Anodal® WT-1 Liquid. 
The table below shows the additions required for precipitating Sanodure® Orange RL. 
Precipitation FeCl3, 40% Etching lye Anodal
® WT-1 Residual dye    
method ml/g dye Liquid in the filtrate    
ml/g dye ml/g dye mg/l 
A 2,0 - 0,9 < 1 
B 2,0 - 0,9 ~ 7 
C - 2.0 1.5 ~ 9 
 Many of their dyestuffs, pigments and chemicals are patented by Clariant in numerous industrial countries. 
® Trademark of Clariant registered in numerous countries. 
®* Trademark registered in numerous countries and licensed to Clariant. 
®+ Other Manufacturer's registered trade mark 
The signs ®, ®* and ®+ appear only at the first mention of the product. 
The information and recommendations presented here were compiled with the utmost care, but cannot be extended to cover 
every possible case. They are intended to serve as non-binding guidelines and must be adapted to the prevailing conditions.

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