TresClean - High ThRoughput lasEr texturing of Self-CLEANing and antibacterial surfaces

About the Project:

Project Acronym - TresClean

Project Title - High ThRoughput lasEr texturing of Self-CLEANing and antibacterial surfaces

Project Number - 687613

Start date - 01/03/2016

Duration in Months - 54

Call Identifier - H2020-ICT-2015

Topic - ICT-27-2015 Photonics KET

Aim:

The aim of TresClean is to demonstrate high-throughput laser-based manufacturing applied to the production of plastic and metal component parts of consumer white goods and liquid filling machines respectively through the development of a novel industrial use of high-average power pulsed lasers in combination with high-performance optical devices and beam delivery systems.

 

The technical field in which the objectives defined in ICT 27 will be applied and turned into a feasible industrial application is the development of fluid repellent and antibacterial surfaces. The motivation for the project is to go far beyond the state of the art in laser surface texturing and to gain industrial relevance by applying such a technique over large areas of machine parts or tools. As a consequence, the gap between the lab-tested feasibility of these laser-treated surfaces and the production for real applications will be bridged. Among the numerous industrial applications which can gain from functionalized surfaces the project is focused on the cleanliness and the asepticity of machine parts for the food industry and home appliances to deliver easier maintenance and longer service life of the laser treated components by making them superhydrophobic and thus enabling other highly desirable functionalities, such as anti-corrosion, antibiofouling, anti-microbial, and low friction resistance.

​Objectives:

  • Development of surface topographies with fluid repellent and antibacterial properties over large areas (>500cm² for food industry, >5000cm² home appliance) (objective 1).

  • High throughput processing technologies for functional surfaces (DLIP and LIPPS) with USP laser sources with an overall structuring rate of up to 40mm²/s.(objective 2).

  • High average power ultra-short pulsed laser systems at 1030 nm wavelength integrated with fast synchronisation to scanner technology:

    • High pulse energy (3.3 mJ), low repetition rate (300 kHz) up to 1kW average power with up to 45% of optical efficiency (objective 3).

    • Low pulse energy (50 μJ), high repetition rate (10MHz) up to 500W average power (objective 4). 

  • High efficiency frequency conversion (Second Harmonic Generation and Third Harmonic Generation) for shorter wavelengths (515nm, 343nm) with average output power of 500W @515nm and 100W@343nm (objective 5).
  • Fast scanning technology for beam movement (200 m/s) and high throughput production to support lasers up to 20 MHz with high average power up to 1kW. (objective 6).
  • To master and control the upscaling of productivity for anti-microbial surfaces obtained by laser processing (objective 7). 

Achievements: 

  • Identification of ultrashort pulsed laser texturing as a suitable technique for producing antibacterial surfaces

  • Application of laser texturing to generate different topographies, characterized by feature size ranging from a few hundreds of nm to tens of µm

  • Identification of suitable surface topographies to reach super-hydrophobic and antibacterial effects.

  • Development of a high power laser delivering 1kW of output power and >3mJ of pulse energy, including the demonstration of high-power visible (green) and UV radiations with more than 600W and 200W power respectively.   

  • Development of a scanning system with processing speeds of up to several hundred m/s, improved resolution and sufficient accuracy to support laser power up to 1kW.

  • Upscaling of the TresClean laser texturing technique to produce structures with a laser repetition rate of 10 MHz, at a scanning speed of 200 m/s in a field size of 200x200 mm.

  • Transfer of nanoscale topographies on polymers by injection molding.

  • Generation of functionalised surfaces onto free-form components such as metal pipes. 

Project Video:

  • The project video is available on the TresClean YouTube channel​

  • It is designed to give an accessible overview of the project objectives and applications of the technology being developed

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The TresClean project is an initiative of the Photonics Public Private Partnership and has received funding from the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement No. 687613