In the early 2000s, Vetropack Straža, in Hum na Sutli, Croatia, received an enquiry from a fruit juice producer, who wanted dark blue bottles for one of its products.
However, the quantity of bottles ordered was not large enough to make furnace colouring economically viable.

Instead, Vetropack Straža came up with an alternative solution and implemented a colouring feeder on one of its production lines.
With feeder colouring, colour is added later in the process, directly before forming. This allows for the creation of customised colours even in smaller batches.
It’s a highly controlled process. From preparation and precise dosing to real-time quality control, every step matters to ensure consistent results.

Today, this technology still enables:
- more flexibility,
- faster time-to-market,
- tailored solutions, including UV protection in flint glass.
To learn more about feeder colouring, click here.




