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The material thickness was halved without compromising quality new accessible markets

We developed an innovative CO 2 laser based solution for a non contact web perforator, giving our client, British Polythene, commercial advantage Our client needed to perforate a new thinner plastic web with large holes but standard mechanical methods were inadequate, causing tearing

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The material thickness was halved without compromising quality new accessible markets

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  1. We developed an innovative CO2 laser based solution for a non contact web perforator, giving our client, British Polythene, commercial advantage • Our client needed to perforate a new thinner plastic web with large holes but standard mechanical methods were inadequate, causing tearing • We carried out materials development to optimise the non contact, laser, processing capability without compromising web strength • We developed and installed a fully robust and safety compliant system suitable for unskilled operators • Our unique design of laser perforator, needed to meet the demanding production rates has provided a protectable solution for the client C####-P-### v0.00

  2. Our client gained commercial advantage with quality product meeting environmental requirements and a unique, protected process • The material thickness was halved without compromising quality • new accessible markets • lower disposal taxes • lower material consumption • Our client has patent protection for the solution • we filed on his behalf • the technology can be licensed C####-P-### v0.00

  3. We installed a fully robust and safety compliant system • We installed the system safely with minimal production downtime • We applied our experience in • laser systems • complex optical element design • precision opto mechanics • machine and system control engineering • The system is CE compliant • It is safe for unskilled operators • System safety was challenging: • 1.7kW CO2 laser beam (Class 4) • parts rotating at up to 800rpm • high voltage (many kV) • toxic fumes and aerosols C####-P-### v0.00

  4. We carried out materials development to optimise the processing capability • We modified the material for resonant, ablative cutting • Non blocking cutting of two layers of web simultaneously • No layer adhesion • We maintained mechanical properties with thinner material, almost 1/3 of previous thickness • We used only process and industry compatible materials e.g. clays • 10mm diameter hole • More than 500 holes per second • Wide web: 2.5m wide • Standard line speed: 80m/min C####-P-### v0.00

  5. We developed a robust optical solution to meet the extremely demanding requirements • The optical beam is directed to the web sequentially by a rotating drum • All parts are positioned to better than 20mm • We designed a custom Axicon lens solution to form the beam shape • We selected an optimum but robust laser C####-P-### v0.00

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