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JCR In-Store Jewellery Cleaning System Advanced Troubleshooting Guide

 

Appearance

 

Probable cause and recommendations to resolve the problem

 

Yellow to dark brown patches and staining

 

It is possible that residues left by previous chemical cleaning could cause staining particularly in folds, stone settings, hollows etc. It is conceivable that the residue of these chemicals will leach out during cleaning with the JCR process complicating and contaminating the solution.

 

If the item has been cleaned using chemicals, we recommend that the item has an initial cleaning of at least two 40 sec cycles followed by gentle brushing and a thorough rinse in clean water. Subsequent cleans will only require a 2 or 3 second dip followed by thorough rinse.

 

 

Dull or scratched surface

 

It is not possible for the JCR System to damage the surface.

 

Previous damage will be revealed once the surface has been cleaned.

 

Damage can be caused by chemical cleaning dips and impregnated polishing cloths. Chemical dips are usually acidic and very reactive. They will damage the polished surface, eroding it microscopically each time it is done. Polishing cloths will pick up large abrasive particles and oil from handling and can scratch fine surfaces.

 

Yellow patches left around stones

 

This could be as a result of chemicals leaching out of the setting as described above. This will be cleared by initially giving the item two or three cycles of 30 seconds, and then brushing with the washout brush supplied. Subsequent cleans will only need two or three seconds of processing.

 

Black in crevices

 

An initial cleaning will be needed using two or three 40 second cycles then brush gently with the washout brush, rinse in distilled water and pat dry. Subsequent cleans will take only two or three seconds.

 

The item can be placed in an ultrasonic tank if preferred to brushing.

 

Replace the electrolyte frequently when undertaking initial cleaning.

 

Burn marks

 

 

Insufficient cleaning of the surface

 

 

Very tarnished items not coming up white and bright

 

 

Appearance

 

Probable cause and recommendations to resolve the problem

 

Yellow to brown staining on bright silver surface

 

When chemically patinated pieces are processed by the JCR system, metal ions will be released from the blackening chemicals into the electrolyte solution.  If the concentration is allowed to build up, the metal ions will plate out onto the surface of the item being cleaned.  It will be seen as a yellow to black stain. This is not a problem on the dark areas, but is undesirable on the bright polished areas.  Fortunately, the silver dipping hook will act as an indicator as its normally white surface will become coloured.

 

There will be a build up of contaminants in the electrolyte solution, as described above, and this is unavoidable. It is vitally important to keep the solution fresh.  Keep the dipping hook clean as it will show a mild discolouration if there is a problem with the solution.

 

Should the bright surface of the jewellery or dipping hook become coloured it can be simply wiped with a soft cloth charged with a little fine jewellers rouge.  The electrolyte solution will need to be changed much more frequently than when cleaning untreated surfaces. Experience of the process will provide a guide as to when the solution is replaced.

 

 

 

 

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JCR Solutions, PH: 07 5535 1939, U2/53 Township Drive, Burleigh Heads, Queensland

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