CONTACT US

Derech Ha'Atsmaut 39, Haifa 3303320, Israel

FOLLOW US

  • LinkedIn - White Circle
  • YouTube - White Circle

​© 2019 by NanoFine Technologies

Technology

Yellow gold jewelry articles are composed of an alloy containing several metals such as: gold, silver, copper, zinc. Such alloying is required to obtain reasonable mechanical properties and hereby mechanical stability. However, alloying with non-gold elements results in shifting the alloy color and appearance from the original pure gold color and hence obtaining pale-yellow colors in low-karat jewelry.

Commercially available master alloys are used to alloy the gold to get karat gold alloys usually in the range between 22K and 9K. The color shift from pure gold color depends on the karat and on the master alloy composition. Therefore, one can obtain same karat alloy in two (or more) different colors, using different master alloys.

Up to date, no master alloy can provide pure gold color or similar.

NanoFine enables jewelry manufacturers to enrich their articles
towards a wide range of rich yellow colors
without applying any coating!

NanoFine’s technology is based on surface chemical reactions occurring on the jewelry surface. Our machinery provides precise control on such reactions and hereby enables jewelry manufacturers to enrich and precisely choose the output color of their jewelry items

In addition, our machinery works with a single NanoFine material (Nano-P01D) to provide the entire range of colors.

21k

different master alloys

18k

different master alloys

21k - EK212A

Initial color

21k - EK212A

NanoFine colors range

18k - P20x10

Initial color

18k - P20x10

NanoFine colors range