Static Control & Web Cleaning REDUCING THE CHARGE:
The importance of static eliminators For many companies in the converting industry, the challenge of how to re- duce static charge is an ever present problem, Fraser Anti-Static discusses
However, there is a growing need for more accurate control when improving production efficiencies. In some cases, a low residual level of charge in a material can actually make subsequent converting or packaging operations run more smoothly, such as polyester films used in capacitors or BOPET films used for high transparency applications. Fraser Anti-Static is a world expert in the control of static electricity, with products sold in over 80 countries worldwide. For a free 30 day trial of any of its electrical range of static eliminators, or to discuss any static issues that you might be having within your business, contact the Fraser technical team on Tel: 01398 331 114 or email:
Sales@fraser-antistatic.co.uk
www.fraser-antistatic.com/en
problems on light film can occur at relatively low voltages of 10,000V, and they can be as high as 100,000V, both the need for and benefit of a static-eliminator are significant. The benefits of static charge reductions are
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obvious; improvements in running speeds, waste management, and an overall reduction in health and safety risks. In most converting applications a 90 per cent reduction in the static charge is sufficient to control and avoid production problems. However, reducing the charge below 1,000V on an extruder or another winding operation is very difficult and needs careful consideration. Nowhere is this challenge more evident than in the recent case of a German extruder and converter, where there was a requirement for the finished reel to have a charge of less than 1,000V. Bruce Clothier, Fraser CEO, explains: “This was a difficult task. Without static control the actual charge generated was between 40 – 50,000V. This may sound like a high charge but it’s not unusual to see voltages of over 100,000V in converting applications.” For this application, Fraser recommended the installation of a NEOS 12L static eliminator bar, with its high power and variable ionisation output. The NEOS 12L was positioned directly over the reel, at a distance of 800mm from the core. Although Fraser would not normally position a bar so far away from the core, this location was preferred by the customer so it did not pose any reel handling issues.
The installation was successful, and as you can 24 March 2018 hen you
consider that manufacturing
see from the picture below, the overall charge was reduced from 40,000V to 690V, well within the 1000V tolerance
specified. The 12L is part of the NEOS range, which according to Clothier is “one of the most advanced suite of static elimination bars in the world.” Fraser believe that the future of static management is flexibility: “As the converting industry continues to evolve, we’re seeing changes in the materials used, an increasing focus upon production efficiencies and ever stricter static tolerances from the end consumer." As a result, the NEOS range also includes the 20 and 30 models, offering between two and four times the level of ionisation power when compared to the 12L. NEOS can offer 100 per cent ionisation coverage, right across the bar, in lengths up to 10m. In the future, the industry will see more static-eliminators like NEOS, that use intelligent monitoring to deliver variable levels of ionisation in response to the charge generated.
KSM – CONTACT CLEANING REBORN
KSM, provider of contact cleaning technologies, has announced the launch of a new website, new branding and substantial enhancements to its product range in terms of functionality, eficiency and design – all of which delivers increased value to customers. Under the Superclean brand, the company’s portfolio of products remove surface contamination at the microscopic level from a wide range of materials used in critical processes in a number of industrial, process and manufacturing environments. By effectively removing contamination, yields can be increased, defects eliminated, wastage reduced and profitability increased. Key sectors for KSM solutions are printed circuit board (PCB) electronics; label printing; cleanrooms; automotive and industrial glass; industrial screen-printing; and industrial film and paper converting. The product range includes: custom web & sheet cleaners, manual cleaning kits, adhesive rolls, replacement cleaning rollers, adhesive floor mats, and hand-held cleaning rollers and IPA wipes. In 2017 KSM became part of the Rainbow
The NEOS 12L Bar (red) positioned about 800mm above the reel core.
Technology Systems group of companies. Rainbow is an innovative design, manufacturing and consumables supply company based in Glasgow. Its projects range from bespoke process automation solutions to the supply of consumables to a wide range of industries. www.rainbow
technology.com
www.convertermag.co.uk
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