The size of the cables has become crucial as it directly influences the occupancy costs in installation conduits. The bottom line is that the smaller the diameter, the lower the associated costs for the internet bandwidth distributor. This factor has driven a growing demand for smaller cables, which in turn has necessitated the reduction in size of internal elements, especially the tubes housing the optical fibers.

However, reducing the diameter of the tubes has led to a significant decrease in the thickness of their walls, posing challenges in coloring these components. The identifying function of colors in optical fiber cable tubes has been compromised due to a lack of opacity, causing the tube color to change because its color is masked by the interior fibers when it becomes transparent, making precise identification difficult for installers in certain colors such as red and pink or yellow and orange.

This is where specialized masterbatches have played a crucial role. These materials offer opacity functionality and precise coloring, ensuring that optical fiber cable tubes are opaque and maintain their original visual identification, even with minimal thicknesses.

Leading companies in the development and deployment of telecommunications networks closely collaborate with masterbatch suppliers like Delta Tecnic to adapt to the new technical requirements generated by cable miniaturization. This cooperation has resulted in highly efficient masterbatches capable of maintaining chromatic identification of tubes with reduced thicknesses.

The key to success lies in the ability to disperse high amounts of pigments and reduce masterbatch dosages, while also increasing tube opacity. In the case of Delta Tecnic, this type of masterbatch allows for a reduction in dosages by more than 25% during the extrusion of minimized tubes, ensuring an optimal balance between mechanical properties and material cost reduction.

This technological advancement has paved the way for a new era of smaller, more efficient, and reliable optical fiber cables in the demanding telecommunications market. Continuous innovation and technical excellence in the field of masterbatch are driving the industry forward, facilitating the constant evolution of telecommunications.

Interwire 2025, booth 563

Delta Tecnic, S.A.

Pol. Ind. Molí de les Planes

Carrer Rec Molí de les Planes, s/n

08470 Sant Celoni, Barcelona, Spain

Tel.: +34 938 674 284

deltatec@deltatecnic.com

www.deltatecnic.com