Archive for December, 2003

Eurocell Profiles: Expanstion of extrusion capacity

Monday, December 29th, 2003

Eurocell Profiles, UK, a window and door profile extruder belonging to the Plastics Converting Division of the Belgian Tessenderlo Group, is investing £4 million in a new extrusion hall, which will be operational by the end of 2004. The extension will increase both production and storage space.
Eurocell Profiles is part of Fairbrook plc, in which Tessenderlo bought a majority stake in 1998, and reckons to be the third largest window frame profile manufacturer in the UK. It makes profiles under the brand names Eurocell and Pinnacle.

Teijin DuPont Films: Expansion of PEN Film Output

Wednesday, December 24th, 2003

Teijin DuPont Films Japan Ltd. is building a second plant for PEN film production. It will start up on the spring. The company says demand is rapidly increasing for PEN film in flexible printed circuits, which substitute for wire harnesses in automobiles. Also, PEN film has been selected as a recording medium for the third-generation LTO (linear tape open) tape-back-up system, which is the next-generation server back-up system to be put on the market next spring.

Linpac Plastics: Purchase of Italian packaging firm

Tuesday, December 23rd, 2003

Linpac Plastics has acquired Italian packaging firm Infia for an undisclosed sum. Infia, a privately owned business, employs 300 people at its sites near Bologna in northern Italy and Valancia in Spain. It is one of Europe’s leading manufacturers of plastic punnets for soft fruit and trays for fruit and produce. The partnership will offer a range of common packaging materials including APET, PP, EPS, PVC films and complex barrier films.

Enercon: New Dyne-A-Mite HP™ 3D surface treater

Tuesday, December 16th, 2003

The new Dyne-A-Mite HP™ is the most effective 3D air plasma surface treater ever offered by Enercon. It consistently delivers up to 200% more surface activation than comparable systems. The system’s unique design generates an aggressive blown arc discharge that is ideal for high line speeds and demanding applications. Its highly effective air plasma treatment eliminates the need for a costly chemical priming and etching processes. This makes the Dyne-A-Mite HP™ a powerful and economical solution for improving surface adhesion on all types of surfaces for printing, painting, coating, bonding, and labeling applications.

The Dyne-A-Mite HPTM treats three-dimensional objects, areas of two-dimensional plastics, and other materials without requiring a grounding element of any kind. Treatment of PE, PP, PET, PMMA, PVC, TPU, vinyl, polystyrene, polycarbonate, and all other types of thermoformed and thermoset plastics are made simple with the Dyne-A-Mite HP™. It is ideal for treating extruded, pultruted, molded, and formed material in the medical, packaging, electronic, industrial, optical, and printing industries. This surface treatment facilitates high quality printing on plastic parts, allows clear readable markings on polymer surfaces and improves the adhesion of labels and coatings.

Dyne-A-Mite HP™ is remarkably easy to operate and is virtually maintenance free. Easy to use, the operator guided front panel controls feature simple Start/Stop treatment buttons. Terminals are available for remote operation and contacts are provided for a Loss of Treatment Indication device. Safe and reliable operation is ensured with external interlock capabilities and a heavy duty blower.

Enercon Industries Corporation, headquartered in Menomonee Falls, WI, is a major manufacturer of equipment for the plastics and packaging industries. The company supplies custom built bare-roll, covered-roll and universal roll corona treating systems, atmospheric plasma treating systems, 3D surface treaters, and 3D plasma treaters for the plastics and rubber industries.
More information is available at

Intek Plastics: Closing of Wisconsin plant

Monday, December 15th, 2003

Extruder Intek Plastics Inc. will shutter a facility in Eau Claire by the end of the first quarter. Eight lines will be transferred from the 51,000-square-foot site in Eau Claire to two plants in Intek´s headquarters city of Hastings, Minn. The move will affect about 60 employees, officials said.

OMG: Purchase of Xaloy’s European business

Monday, December 15th, 2003

Italian screw system supplier OMG has acquired the European arm of screw and barrel manufacturer Xaloy. Xaloy parent company the Saurer Group of Switzerland announced the sale yesterday at an undisclosed price. A spokeswoman said the sale was made at “book value” and the company did not lose money on the deal. Xaloy has 183 employees and sales of around Euro 19m in Europe. It operates two manufacturing plants in Olten, Switzerland, and Brno in the Czech Republic. The new group will be named Bernex Bimetall and will include OMG facilities in Italy.

Dow Corning: Increase of silanes capacity

Tuesday, December 9th, 2003

Dow Corning Corporation has announced it has increased production of its broad range of silane coupling agents by more than 40 percent to better satisfy customer demand.
The increased capacity is the result of more than $6 million in improvements to the company’s manufacturing processes in the past two years, according to Ken Kaufman, global product line manager, silanes and silica.
“The improvements will provide a dependable supply of high-quality silanes around the world,” Kaufman said. “Customers now have a reliable source whether they’re looking for lower volatility silane solutions, higher purity, or improved consistency of their silanes”

Dow Corning pioneered organosilane technology more than 50 years ago. The company provides product, formulation and application engineering in all families of chlorosilanes and alkoxysilanes—methylchloro, trichloro, alkyl, phenyl, fluoro, as well as functional organosilanes such as amino, styrylamino, epoxy, methacryl, sulfido, and vinyl.
To learn more about the full range of Dow Corning Silanes products, call +44 (0)1676 528000.

Technoplast: Management buy-out

Sunday, December 7th, 2003

The managing director of Austrian extrusion machinery maker Technoplast has acquired the company in a management buy-out from previous owner Feichtner.
Werner Kampichler now controls 95% of the company through Kampichler Holding, while unspecified new investors hold the remaining 5% of the company.
Located in Micheldorf, Technoplast claims to be in second position worldwide in its profile extrusion technology business that involves tooling for the production of window profiles. Kampichler’s declared aim is to make the company, which employs 250 staff, the market leader in both technology and quality.
The company was founded in 1987 and has increased its turnover to E36m in the 2002/2003 financial year. Technoplast forecasts this will rise to E40m for 2003/2004.

EDI: Flat die with unique ‘sculpted’ design

Friday, December 5th, 2003

A new type of flat extrusion die that differs in shape dramatically from conventional dies enables film, sheet, and coating processors to improve productivity and product quality by eliminating a longstanding tradeoff between gauge uniformity and streamlined melt flow, it was announced at NPE 2003 by Extrusion Dies Industries, LLC (EDI), which is exhibiting at Booth 4561.

Called the Contour Die because it has a tapered, ’sculpted’ shape instead of the standard block-like configuration, the new system exhibits die-body deflection that is uniform across the width of the die yet avoids the sacrifice of melt-flow streamlining incurred by earlier ‘constant-deflection’ dies, according to John A. Ulcej, executive vice president of engineering and technology. Ulcej cited these specific benefits:

. Rapid achievement of target gauge. The key advantage of uniform die body deflection is a reduction of the time required to adjust the gauge profiling system. ‘Operators can achieve target gauge several minutes sooner after startup or changes in extrusion rate,’ Ulcej said.

. Low levels of polymer degradation. ‘The superior flow of the Contour Die compared with that of earlier constant-deflection dies is particularly valuable for those running heat-sensitive polymers like PVC,’ noted Ulcej, ‘and for most polymers it provides greater assurance of good-quality product and less likelihood of lip buildup or gels.’

. Fast purges. Streamlined flow helps to speed purges for color or product changes.

. Low levels of scrap. All three improvements cited above manifest themselves in terms of reduced scrap generation.

‘We anticipate that users of the Contour Die will achieve significant reduction in scrap,’
Ulcej said. ‘With conventional dies, scrap is often the major penalty paid for non-uniform die body deflection, as well as for flow hang-ups or dead spots in the manifold. This new die reduces or eliminates both causes of excessive scrap.’

While manufacturers running heat-sensitive polymers or requiring frequent product changeovers are obvious beneficiaries of the Contour Die, Ulcej noted, ‘virtually every processor of film, sheet, or coatings can use this new system to improve productivity and quality.’

Key to Constant Deflection: ‘Engineer the Die from the Inside Out’

The manifold of a flat extrusion die is a flow channel that is machined between the upper and lower halves, or bodies, of the die and whose function is to develop uniform flow and to distribute the melt to its final product width. Die-body deflection is caused by the pressure of the molten polymer that the extruder continuously charges into the manifold. Multiplied across the entire area of the manifold, this pressure (typically in the range of 1000-4000 p.s.i., or 70-280 kg per sq. m) generates thousands of pounds of force, enough to deflect heavy steel die bodies.

This deflection is non-uniform in a die with a standard coathanger manifold (so-called because its back walls, on either side of the melt entry port, are positioned at an angle to the die exit rather than parallel to it, forming two sides of a triangle). The result of this non-uniformity is a tendency for center flow to be too heavy and flow at the ends to be too light; operators need several minutes to correct for this problem in order to achieve an acceptable product. In the interval, substantial scrap is generated.

Previous designs for constant-deflection dies solved this problem with manifolds that had straight backlines, parallel to the die exit, but they did not provide the degree of flow streamlining available with a coathanger manifold. Melt flowing through such dies stood a greater chance of encountering hang-ups or dead spots that cause polymer degradation and retard purges for color change.

‘In designing the Contour Die, we started with a standard coathanger manifold and engineered the rest of the die around it,’ Ulcej said. ‘Since there is a pressure gradient across the width of the manifold from the center to the ends, we built in extra die-body thickness where the force was greater and did the reverse where there was less force. The result is a sculpted configuration that is smaller and tapered at the ends.’

In developing the new die, EDI employed sophisticated three-dimensional engineering software and computerized manufacturing systems, including a five-axis machining center. ‘These capabilities enabled us to turn die manufacturing upside-down,’ Ulcej said. ‘Instead of starting and ending with two steel rectangles because it is easier to build conventional dies that way, we had the freedom to design the die in a way that would optimize its performance.’

For more information: [email protected]

DuPont: High-performance film for food packaging

Friday, December 5th, 2003

Montorsi Francesco & Figli SpA, part of the Veronesi Group and an Italian leader in processed meat, has worked with DuPont Packaging & Industrial Polymers () to develop a new high-performance film for flow-packing AIA brand roasted turkey breast.

This new solution, which is also used by Montorsi to package other food specialities, relies on the proprietary features and performance of DuPont™ Surlyn brand resin. It offers maximum hygiene, an excellent secondary seal with perfect adhesion to the meat, a high barrier against gas, resistance to pasteurising temperatures, and excellent features in terms of brilliance and transparency.

The packaging film, which contains polyamide and EVOH, features a sealing coat made of a special zinc-based Surlyn resin, which has several particularly important properties for this specific application.

“We were looking for a packaging material that could offer the best possible performance in terms of secondary seal,” says Agnese Prete, head of packaging department at Montorsi. “In changing the type of packaging used for several of our products sold to delis and catering businesses, which we protected in the past using heat-shrink packaging, we sought a vacuum flow-pack that would adhere perfectly to the meat. We didn’t want the liquid that can ooze from the cooked meat to move about inside the package. The types of metallocene polyethylene we tested were unable to satisfy this requirement.”

“The film also had to be able to resist pasteurisation without any problems, a treatment that requires temperatures of up to 90 °C. Moreover, it also had to offer a high barrier to oxygen and, of course, be suitable for direct contact with food,” adds Prete. The key to the solution came from a film made with a zinc-based grade of DuPont Surlyn, which yields a packaging film that can be wrapped around the meat like a second skin.

The DuPont material has a high melting point and can stand pasteurisation temperatures without any problems. Moreover, it complies with the standards in force in the European Union and in the US for direct contact with food. Thanks to the use of polyamide and EVOH, this new film is thinner, yet offers the same shelf life as the packaging used previously.