PETpla.net Insider 04 / 2018

BOTTLE MAKING 31 PET planet Insider Vol. 19 No. 04/18 www.petpla.net BOTTLE MAKING 31 Please order your copy at the PETplanet Insider book shop: www.petpla.net/book3 Stretch Blow Molding Third Edition by Ottmar Brandau € 130,00 374 pages © Copyright Elsevier 2017, 2012 Unique technologies, innovative solutions, comprehensive technical support, high ex- pertise in all kinds of plastics applications. In others words: typical Gneuss. The Big Cleanup 'HʏEKGPV &GEQPVCOKPCVKQP MRS Extrusion gneuss.com NPE Stand W6473 Plast Stand 15 / B11 Plastic Recycling Show Stand B10 Chinaplas Stand 2J31 Bare hands should never touch lamp surfaces, as oil can be transferred on them that leads to burn marks. Should it happen, lamps should be wiped off with alcohol. When it comes to selecting lamps from different suppliers one impor- tant detail is how much of the applied energy is actually converted to infra- red radiation. This has a significant impact on energy consumption and buyers should carefully scrutinise data supplied by manufacturers. Half- round reflectors at the back of the lamps have proven to be a significant improvement in this respect. It should also be noted that athough these lamps emit a wide spectrum of light waves, only some of which are optimal for PET (Chap- ter 6). Near-infrared (NIR) heaters concentrate more of the output in the 1000-nm range, which is especially suitable to penetrate preform walls. Ovens with these heaters can reduce heating time, space requirements, and energy costs, and manufacturers have started to equip their ovens with them.