Manufacturing and Packaging
Photosensitive composition for 3D printing

Photosensitive composition for 3D printing


A non-toxic photo-polymerizable resin is proposed suitable for use in 3D printing with stereolitographic technique with Digital Light Processing system. The resin is obtained from biocompatible natural products, easily available and inexpensive, easily disposable and biodegradable. These natural products can be vegetable oils, even exhausted vegetable oils.


The stereolithographic 3D printing technique uses a single light beam to polymerize a photosensitive resin, drawing on it fine layers of polymer that are repeated and superimposed until the printing is complete. The advantages offered by this technique are various: high quality surface finishes due to voxels reduced dimensions, fast printing processes and a wide choice of materials to work with. However, the industrial resins currently on the market are composed of very toxic and polluting substances, totally non-bio-compatible, which pose the problem of waste in the processes of 3D printing.

The use of a hoto-polymerizable resin obtained from biocompatible natural materials fits well into a circular economy concept while allowing for of stereolithographic 3D printing benefits.


  • Economic;
  • Easy availability of the raw material;
  • Bio-compatible


  • Medical 3D printing
  • Biological 3D printing


Daniele Dondi



Photo-polymerizable resin; 3D printing; Stereolitographic technique; Biocompatible resins; Exhausted oils.




Università di Pavia 100%

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