SPOTLIGHT Sustainable packaging
Making packaging that doesn’t cost the Earth
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lobally, companies are seeking opportunities to reduce waste and the carbon footprint of their products. This has
increased demand for environmentally- responsible packaging, and the manufacturing company Futamura has become the world’s largest producer of sustainable cellulose packaging fi lms, including its leading NatureFlex range. The production of sustainable fi lms
requires precise monitoring and control of process conditions. Highly accurate temperature and humidity measurement is therefore essential, particularly during the fi lm drying process and when fi nished products are stored. Futamura UK uses Vaisala measurement equipment across its site, including Vaisala HUMICAP humidity and temperature transmitters HMT360 in its coating towers inside its conditioners. The coating towers contain solvents that are fl ammable, so the products used in these areas must be certifi ed for the Ex environment. The Vaisala HMT360 transmitters, now superseded by the ATEX-certifi ed HMT370EX, are intrinsically safe, making them ideal for hazardous areas like these. Vaisala measurement instruments can also be found on Futamura UK’s casting machines, installed in the dryer ducting, measuring humidity and temperature. The Vaisala humidity and temperature meter Series HMT330 is designed to provide highly accurate measurements in demanding industrial applications. These transmitters control a valve which manages the amount of steam that goes into the dryers, allowing the humidity to be maintained at the drying set-point needed for each type of fi lm. Moisture content is a signifi cant factor in the properties of the fi nal fi lm, so accurate control is important to ensure product quality and minimise waste. The HMT330 is an older model, so, seeking to future- proof its measurement instrumentation, Futamura contacted Vaisala for advice. A member of Vaisala’s technical sales team visited Futamura’s UK site in Wigton, Cumbria, to demonstrate the benefi ts of
8 February 2024 | Automation Futamura Vaisala Indigo transmitters
switching to Vaisala’s Indigo platform and discuss options with Electrical Engineering Chargehand, David Carr, and Technical Engineers David Mansergh and Chris Reid. “We described the applications for the HMT330 series instruments and the Vaisala representative suggested we try the Indigo520 display with a relative humidity and temperature probe HMP5,” explains David Carr. “We were more than happy with the suggestion. His vast product knowledge and expertise in engineering and process systems was a huge benefi t in the decision making process. He also went through the calibration process and explained how to set up the equipment with our electrical engineers. Vaisala’s service and support have been fi rst class – they have gone above and beyond to help us.”
Ease of installation and operation The Indigo520 can connect with two separate probes simultaneously and has a simple, clear, intuitive touchscreen display. Futamura particularly appreciates
the screen size and easy-to-read graphs, as well as the ability to swap out probes for calibration. It has also been advantageous that the new HMP5 probes work mechanically in the same way as the previous devices, with which they were already very familiar. The key benefi t of using Vaisala’s
measurement instruments in Futamura’s manufacturing process is that they enable accurate control of the production process, which ensures consistent product quality and reduces waste.
Carr said: “Futamura has been using
Vaisala measurement instruments for many years, helping us ensure the quality of our sustainable packaging fi lms, and we will continue to do so in the future. When you fi nd products and a company that we trust, it makes good business sense to continue the relationship. As a plant we like to standardise because it makes spares management and equipment replacement simpler. It’s safe to say that Vaisala is our brand of choice because of product reliability and ease of installation and operation.”
automationmagazine.co.uk
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