The Solar Textiles project explores approaches for the production of polymers from renewable feedstock and solar energy as the only energy input and in this way contributing towards the development of a sustainable chemical industry. The synthesis of Nylon 6,6 has been selected as a model polymer production process, given the importance of the polymer for a wide range of commercial applications, the large scale of the Nylon market (>6 million tons, >USD 20 billion market) and its high value (3.6-4 USD/kg). This makes Nylon a perfect target for large-scale chemical processes that can be adapted to efficiently operate using renewable feedstocks and energy resources. The proposed approach is focused on the combined solar thermo- and electro-chemical synthesis of hexanediamine (HDA), one of the precursors for Nylon 6,6 synthesis. The process is divided by the spectrally selective absorption of UV and Visible irradiation by photovoltaic (PV) arrays, which drive the electrochemical reduction of aqueous streams of acrylonitrile (ACN) to adiponitrile (ADN) and hydrogen (H2). ACN could be sourced from biomass derivatives and be considered a renewable feedstock. The products of the electrochemical reactors will then be fed to a solar thermochemical reactor, which will use the transmitted infrared (IR) radiation from the PV array in a concentrated fashion to carry out the hydrogenation of ADN to HDA in the gas phase at high temperatures (> 300 ˚C). The reactor design principles and integrated solar chemical synthesis processes developed within this proposal, will become the foundation for the conception of a full production process for Nylon 6,6 only requiring the sun, water and CO2 as input. This is a collaborative between the Laboratory of Renewable Energy Science and Engineering at EPFL, and our group at NYU.