Customised granule colouring solutions
We offer a highly customised granule colouring service. Unlike the traditional process, which involves simply physically adding master colour to the polymer mass to be moulded, this surface coating technology ensures a more uniform colour distribution across the lenses. This process, performed before moulding, allows for the creation of unique and original lenses, perfectly suited to any aesthetic and functional requirement. Thanks to granule colouring, it is possible to obtain uniform lenses, free of streaks or irregularities.


Infinite pigmentations
Our granule colouring treatment before moulding allows you to choose from a wide range of colours, from the most classic to the most original shades, offering an almost infinite range of customisation possibilities. This flexibility in granule colouring is ideal for creating sunglasses or polycarbonate lenses for industrial applications.
Technical parameters and certifications
The quality of our treatments is guaranteed by rigorous monitoring of technical parameters and compliance with current regulations.
Colour density
The amount of dye in the resin is measured to ensure that it matches the desired colour and is uniform throughout the lens.
Colour stability
The colour is tested for resistance to light, heat, and chemicals to ensure it will not fade or alter over time.
Light transmittance
The amount of light passing through the coloured lens is measured to ensure that it does not excessively reduce visibility or alter colour perception.
Regulatory compliance
It is verified that the colouring does not alter the optical properties of the lens and that it complies with current health and safety regulations.
Your vision, our advice: discover our production processes.
Info and contacts
Want to create unique, personalised lenses?
Contact us now for a free quote and personalised consultation. Our team of experts will be happy to help you choose the colour that best suits your needs.