Stretch Blow Molding
All-Plastic Paint Cans Challenge Steel
After considerable success in Europe, all-plastic gallon paint cans are spilling into North America’s retail paint market more quickly than was anticipated just a few months ago.
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NPE News Wrap-Up: Blow Molding
Long-stroke machines go rotary, all-electrics grow larger,and PET bottles get a new “glass” coating. Visitors to the show got to see all these and more.
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Blow Molding - Higher Output Vies With Flexibility
The emphasis in blow molding equipment introductions at NPE 2003 is on higher output capability and greater versatility to take on emerging markets.
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All-Electrics & Stretch-Blow Get Top Billing
Energy efficiency and production cost savings were dominant themes of the blow molding exhibits at K 2001. A handful of new all-electric machines aroused intense interest, though they are aimed primarily at niche markets. And in two-stage (reheat) PET stretch-blow molding, the focus was on boosting output per cavity.
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On-Line PET Bottle Thickness Gauging Brings Responsive Process Control
Maintaining desired wall thickness in the neck, shoulder, wall, and base of a PET bottle is a continuing challenge to blow molders, says Chris Robinson, head of quality assurance at the Bowling Green, Ohio, plant of Southeastern Container (SEC) Group Inc.
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Blow Molding Gets Green Light in Detroit
Technical blow molding is changing the contours of automotive interior trim, load-bearing floors, seat-back systems, and under-hood ducting. Favorable economics, process refinements, and the emergence of tailored materials and equipment are taking the brakes off blow molding's earlier limits, and pointing a way to cost cutting.
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Blow Molding (K 2001 Preview)
One cluster of blow molding innovations on display at K 2001 will address the need for more versatile single-stage injection stretch-blow molding (ISBM) machines. A thirst for energy savings underlies plans to launch all-electric units for PET and HDPE containers. Also in the limelight are advances in large-part technical blow molding.
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See-Through Plastic Cans Enliven Paint Packaging
Improved technologies for molding see-through plastic paint cans—both clear stretch-blow molded PET and translucent injection molded PP—are adding dash to paint marketing in the U.K. These trends present a lively example to the U.S., where gray steel cans still dominate the shelves in retail paint packaging.
Read MoreMove Over BLOW MOLDING: Make Way for Thermoformed Gas Tanks
On the surface, the technology free-for-all feels like 1992 all over again. That was the first time makers of blow molded gas tanks faced California emissions standards that their technology couldn’t meet. The six-layer blow molded gas tank won that round, but today’s tanks won’t pass far tougher emissions standards coming in 2003 and 2004.
Read MoreBlow Molding
Examples of the growing trend toward all-electric blow molding machines for packaging will either be physically present or shown in videos and brochures at NPE. Superior accuracy, repeatability, speed, quietness, cleanliness, and energy efficiency are all claimed for the five new all-electric models being presented by four firms at the show.
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