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Dyes for Anodized Aluminium // Alumon Orange AGN




Alumon Orange AGN

                                                (Technical Data Sheet)

 Alumon orange AGN is azo dye (metal complex) having all round fastness. This dye basically used for Jewellery. This is unsuitable for exterior building elements. 

Chemical Properties:

                          Physical Form           :  Dry Powder

               

                             Appearance               :  Dark Orange Powder

 

                            Chemical Class         :  Metalized  azo dye.

 

                             Light Fatness          : Good

 

                            Heat Fastness         : Good

 

Anodizing recommendation :

    

Applicable condition are as:

Coating Thickness     : 10-25 microns

Concentration            : 3 – 4 g/l

Temperatures           : 55 – 60 C

pH                             : 5.5 +-   0.5

Buffer                       : the bath must be buffered with 8 g/l sodium acetate tri hydrate 0.4 ml/l acetic acid

                                      for pH 5.5    

Time                         : 10-15 Minute.

Water Quality           : preferably de –ionized; dyeing is also possible in tap water, but 

                                   this can reduce the service life of dye bath

SEALING:

The dyed oxide film must be properly sealed properly using a hot sealing salt ANO SEAL CA-350 for best result.

 

Other Recommendation:

1) Ammonium compounds shall not be used for controlling of the pH or to buffer dye   

     bath solution.

2) The presence of ammonium compounds in the sealing solution may cause

     leaching and loss of color.

3) Use sodium acetate for dye buffer.

4) Adequate care to be taken for proper rinsing to control drag-in for optimum tank life.

5) Dye may be dissolved separately outside the dye bath. Use demineralized water for   

     better dye bath stability.

6)  The life of dye bath is reduced by water containing ammonium.

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