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Sidel gives insights into PET packaging shapes at Blow Moulding Conference
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Saturday, 04 August, 2018, 08 : 00 AM [IST]
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Cologne
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At the second installment of the Blow Moulding Conference, which was held in Cologne, Germany, recently Sidel gave insights into increased PET packaging shapes opportunities and how to achieve them with precise and reliable heating processes. The focus for the company was SteadyEDGE, a patented base solution for innovative and attractive PET package design variants that ensures a stable and cost-efficient production.
The international conference on technical and business developments in plastic bottles and containers was attended by technical, sales and business experts representing the entire packaging supply chain in Cologne, Germany. This essay of the conference reviewed current and future market trends, assessed the latest innovations in material, technology and product design and shed light on relevant developments in customer requirements and regulations in the field of blow moulding.
It is estimated that last year, approximately 31 million metric tonne of thermoplastic polymers were processed by blow moulding globally. In this advanced and complex industry, brand owners, packaging companies, machinery and tooling manufacturers profit from continuous innovation in materials, process and product design.
Unique base solution
To address the opportunities for PET within the food, home and personal care (FHPC) markets, José Andre, technical sales manager, Sidel, presented the company’s SteadyEDGE packaging solution. Increasing design freedom and simplifying the production of more elegant containers with less curved bases, Sidel SteadyEDGE offers FHPC producers enhanced brand differentiation options together with maximum efficiency.
SteadyEDGE is designed to meet the challenge of producing flat, oval and rectangular containers in PET, which require the specific preferential heating (PH) blow moulding process. SteadyEDGE allows to deliver the optimum material distribution to achieve a top quality package. Its innovative base technology enlarges marketing opportunities for containers with complex shapes and large labelling surfaces.
With Sidel’s 35-plus years of expertise in PET processing, 24 years of experience within preferential heating, 350 machines installed worldwide and over 8,300 bottle designs, the company is the right partner to reduce the weight of bottles while retaining top bottle quality, even with asymmetrically flat PET containers, common in the FHPC market.
Andre highlighted the revolutionary aspects of this packaging solution, saying, “The sharper edges on the container are used to effectively flatten and increase the standing ring area of the base. This leads to an enhanced stability of up to 35 per cent, which in turn makes it possible to speed up the process output by up to 10 per cent.”
“Because bottles are far less likely to fall while being conveyed between several machines, this results in fewer costly stoppages and greatly improved uptime. Additionally, the containers can be lightweighted by up to 10 per cent, improving the material distribution on the base while using less energy. This is coupled with a reduction in blowing pressure, to decreases energy consumption by up to 20 per cent during production, when limitation is linked to base design,” he added.
Quick return on investment
With customers looking to optimise their preform and bottle design in the face of complex container shapes, while simultaneously increasing their production reliability, Sidel is leveraging its extended packaging process know-how to answer the market’s demands. Namely, the specific base design of SteadyEDGE – with a sharp base radius as low as 1mm – is achieved through a patented base mould system, the Base OverStroke System (BOSS).
Andre clarified to Blow Moulding’s attendants how the system works, stating, “BOSS is a piston activated in the blowing phase to stroke the base. This mechanical element allows for the raising and lowering of the base during the bottle-forming process, independent of the opening and closing of the two half-shells of the mould. It provides flexible and versatile production with the option to quickly implement mould changeovers and ensure maximum production and higher bottle quality.”
BOSS is available for both Sidel SBO Universal and Sidel Matrix blowing machines and is already in use by customers in many different parts of the world, with over 14 different bottle designs, a wide set of formats – from 220ml to 1,000ml – and over 300 million containers produced in total.
Compared to standard preferential heating, SteadyEDGE can reduce the packaging weight from 22g to 20g, lower the blowing pressure needed to shape the package base, and increase the output speed. This way, brand owners, co-packers and packaging manufacturers can achieve their return on investment (ROI) in less than a year.
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