PACKAGING | TECHNOLOGY
offers injection moulding machines pre-configured for closures. The exhibition machine is based on the Elios platform and is pre-configured for efficient production of beverage closures.
An all-electric clamping unit with a dry cycle time of 1.4 seconds enables fast cycle times of less than 2 seconds. An optimised barrier screw allows a smaller injection unit to be used. The new design ensures a higher plasticising performance and a better degree of homogenisation.
Weight issue In its collaboration with Netstal at NPE, StackTeck said its mould technology delivered a high level of thin-walling by combining its Thin Recess Injection Molding (Trim) with seven sequentially controlled valve gates. “We set out to establish a new standard in moulding PET containers using at least 30% content of hard-to-fill PET with a high IV level mixed with a high volume, easier-filling low IV PET resin with the intention that customers would be able to run the same part using 30% rPET,” said Vincent Trava- glini, CEO of StackTeck. Some of its customers on
the PET preform side of the business are running 100% rPET for beverage applica- tions, and this points the way towards adding PCR capability for thin-wall containers, he said. The hot runner used for this mould incorporates Yudo’s ISO technology t o enable tightly spaced valve gated drops on the bottom
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of the container, while incorporating independent control of valve gate timing to suit optimal filling of the part. The hot runner is custom designed for high pressure injection, with thermal profiled nozzles and a balanced thermal man- agement approach. The IML automation system was also supplied by StackTeck, including side entry robotics, as well as a
downstream vision inspec- tion system and down- stream stacking. Separate to this, Stack-
Teck says its Trim technol- ogy has helped customers to save around 1.65 million lbs of material per year. In a recent example, a life cycle assessment (LCA) was performed on a rectangular thin-wall food packaging container. The LCA assessed the environmental impact
resulting from lightweight- ing a 1-litre container using Trim technology for a single production stack mould. Jeff Ngai, director of engineering at StackTeck, said: “In this study, a 21% weight reduction – from 28g to 22g – resulted in a 19.5% reduction in the carbon footprint of the whole process, from resin extrac- tion to end-of-life of the product.”
� + performance GrapheneXcel
Broadway’s new additive masterbatch brings the remarkable properties of graphene to plastic manufacturing.
GrapheneXcel enhances the performance of plastic components used in various industries, including automotive, defence, packaging, and consumer goods. Polymer-specific carrier systems provide compatibility with a wide range of plastics, including polyolefins, TPU and PET.
The many benefits of GrapheneXcel
✓ Enhanced mechanical strength and impact resistance ✓ Increased elastic modulus and durability ✓ Weight reductions (through thin-walling) ✓ Impressive barrier properties ✓ Improved thermal and electrical conductivity ✓ Favourable processing qualities ✓ FREE trials and short lead times ✓ Manufactured and distributed from Broadway’s UK site
Get in touch to discuss your requirements +44 (0)1986 834 181 |
sales@broadwaycolours.com
sales@broadwaycolours.com
Broadway is an ISO certified, UK materials specialist. Our high-quality colourants, effects and additives improve the appearance, performance, sustainability and value of plastics.
MASTERBATCH / COMPOUNDS / ROTO POWDER
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