Colour stability during production of printed ocular prostheses

Printed 3D coloured objects: 3D ink-jet prints colour properties and colour stability

3D ink-jet printing is an additive, powder-based rapid prototyping (RP) process. The 3D printing process described in this overview has been developed by ZCorporation and is based on an ink-jet printing technique. The 3D computer models, created by 3D scanning or in 3D CAD modelling software, are built layer by layer from the basic materials of powder and binders. Due to the basic build princip...

Colour Stability of Thermally Modified Wood during Short-Term Photodegradation

Dry thermal treatments of wood samples were carried out at 160 and 200 °C. After each treatment, the samples were irradiated using a strong UV emitter mercury lamp, and the colour change was then evaluated. For control, untreated samples were also irradiated using the same mercury lamp. Results showed that the extractive content of the wood played an important role in the colour change not only...

The Intra-ocular Colour-filters of Vertebrates.

Colour image reproduction for 3D printing of facial prostheses

In this chapter, using colour 3D printing technology, a 3D colour image reproduction system is detailed for the automated and accurate additive manufacturing of soft tissue facial prostheses. A protocol for 3D colour image reproduction was designed based on six steps of processing. For this specific application, protocols for each sub-process required development and details of each technique a...

Colour quality of facial prostheses in additive manufacturing

Recent progress in additive manufacturing technology has improved the realistic colour reproduction of 3D facial prostheses with computational optimisation of skin colour profiles. The colour appearance of the prosthetic surface depends on both the spectral characteristics of the surfaces and the scene illumination. Considering everyday environments, the colours of prosthetic surfaces should ap...