machinery | Materials handling
Right: Hawkeye, from Bobst,
helps to cut the number of defects in
metallised film
rejects. Hawkeye checks defects throughout the full reel length and provides immediate live feedback alerts to the operator, pinpointing the exact location of pinhole defects inside the vacuum chamber so that corrective measures can be applied to eliminate them. At the same time, the company says that its K5 Expert metalliser – launched last year at K2016 – can run at speeds of up to 1,200m/min, and applies its coating more efficiently. Because it has a 700mm diameter coating drum,
Bobst says that the machine uses 10-15% less alumini- um during the coating process. Also, a larger chill drum helps to remove the heat of the hot aluminium spray more effectively. It will typically be used for BOPP film, and in
wide-web PP or polyester film plants. The K5 Expert is available in widths of 2.45-3.65m,
and can house increased roll diameters of up to 1,270mm. Bobst says that the total cost of ownership (TCO) of the machine is reduced by 25% compared with other metallisers on the market.
Machine relocation Brückner Servtec recently helped one of its customers to dismantle and relocate an 8.2m wide BOPP line from China to Indonesia. The customer, Lotte Packaging Indonesia, urgently
Below: Brückner Servtec recently helped a customer dismantle and relocate this BOPP line from China to Indonesia
needed to boost production capacity, so Brückner moved the second hand machine to its new location in Jakarta – helping Lotte to add 26,500 tonnes/year of plain and co-extruded BOPP film grades. After dismantling the machine and equipment, more
than 90 containers were shipped from China to Indonesia. Before arrival, Lotte built a new 7,075m² production and warehouse facility. Less than six months after unloading the first boxes, the line was back in production at its new premises – and came onstream at its new location in February 2017. Brückner Servtec says this turnkey project is the
tenth worldwide relocation that it has carried out. Its sister company Brückner Maschinenbau is
presenting a range of innovations at Chinaplas – rang- ing from battery separator film to BOPA. The company says that its BOPP and BOPET film
stretching lines are the widest (up to 10.4m), fastest (above 600m/min) and most productive (up to 65,000 tonnes/year) in the industry. Combined with increased energy and raw material efficiency, its technology can lower film producers’ total cost of ownership (TCO), it says.
Conference highlights Ineos says that its latest range of heat sealant materi- als can help to overcome the ‘sealing paradox’ in BOPP film.
Herve Collette, portfolio and extrusion applications TS&D manager at Ineos in Belgium, told delegates at the recent BOPP Films conference in the USA – organ- ised by Applied Market Information – that many heat sealant materials lie in the critical melting point range in which machine direction orientation (MDO) sticking is a problem.
He said that the company’s latest Eltex P grades help
to break this ‘paradox’ by optimising the balance between seal initiation temperature (SIT) and melting temperature.
In addition, some of the latest grades have improved
surface tension and rheology – allowing more effective metallisation, he said. Neil Morrison, head of research and development at Applied Materials Web Coating in Germany, said that ‘plasma assistance’ could help to boost the effectiveness of ceramic barrier coatings such as aluminium oxide. Using standard methods, a layer of aluminium oxide is applied by generating a gaseous aluminium ‘plume’ and combining it with oxygen gas. These combine on the film surface to form a transparent oxide layer. Morrison said that replacing oxygen gas with plasma
can improve deposition on the surface – as well as allowing greater control over coating thickness.
20 FILM & SHEET EXTRUSION | May 2017
www.filmandsheet.com
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