Energy-efficient production of weight-optimized oval PET bottles: Henkel opts for preferential heating from KHS

With preferential heating KHS provides an energy-efficient method for producing oval PET bottles with an optimized weight. Not only the food industry but also consumer goods manufacturers such as Henkel are opting for this cutting-edge technology. It also enables complex containers to be economically produced in house, with no need for external procurement. In using preferential heating Henkel improves its ecological footprint and simplifies its logistics and production processes. At its facility in Wassertrüdingen, Germany, the concern has now invested in a KHS stretch blow molder featuring the new technology for its Fa body care brand. Reducing the bottle weight while simultaneously increasing the percentage of recyclate used in the packaging were the key factors that influenced Henkel’s decision to buy.

Henkel has relied on stretch blow molding technology from KHS for decades. The Dortmund system supplier’s tried-and-tested Blomax machines with preferential heating are used to make containers for fabric softener and household detergents in the company’s Laundry & Home Care business unit worldwide – and in Germany now also for shower gel. “With this measure, we’re consistently aiming to further reduce our ecological footprint throughout our value chain,” says Claus Meyer from Henkel Beauty Care.

Thanks to proven KHS technology and a capacity of up to 21,700 bottles per hour, Henkel’s production processes are now even more efficient. The company also benefits from a more flexible logistics setup, confirms Björn von Lengerke, global product account manager at KHS. “You can make the respective containers for the various products yourself. This makes production plans more flexible.” At the same time, fewer resources are used as trucks no longer have to travel lengthy distances – an important consideration when it comes to climate protection.

More sustainable production: reduced weight and use of recyclate

As a reliable partner KHS is helping to make Henkel’s portfolio more sustainable. Thanks to the former’s holistic Bottles & Shapes™ container design consultancy program, the customer’s 250-milliliter bottle now consumes 14% less material than previous versions – while maintaining the required bottle quality. The bottles also consist entirely of recycled PET, with 25% of this what is known as Social Plastic[1]. “We’re planning on also increasing this percentage in other containers in the future in order to make our entire portfolio even more eco-friendly,” says Christian Bauer, managing director of Henkel’s Wassertrüdingen production site. By 2025, for instance,100% of Henkel’s packaging is to be recyclable or reusable.[2]

Even with high recyclate contents of up to 100% extremely oval bottles can be formed, according to KHS expert von Lengerke. “In the preferential heating method preforms are first heated in the heater as they rotate. In the downstream section rotation is then stopped, so that only certain areas of the PET preforms are heated further.” A heater box specially designed for this purpose transfers the required heating energy through opposite heater levels. “This optimizes the material distribution and stability of the bottle,” von Lengerke continues. This process has various advantages not only in the beauty care range but also when processing cleaning agents, laundry detergents or personal care products that are very often filled into oval PET bottles.

[1] Henkel has been in partnership with the Plastic Bank social enterprise since 2017. Under this initiative people in Haiti, the Philippines, Indonesia and Egypt collect plastic from the countryside or beach that is then reprocessed. At collection centers the local population can exchange the plastic waste they have amassed for goods, services or even money.

[2] Products containing materials or residue that compromise their ability to be recycled or could contaminate recycling loops are excluded.

Über die KHS GmbH

The KHS Group is one of the world’s leading manufacturers of filling and packaging systems for the beverage and liquid food industries. Besides the parent company (KHS GmbH) the group includes various subsidiaries outside Germany, with production sites in Ahmedabad (India), Waukesha (USA), Zinacantepec (Mexico), São Paulo (Brazil) and Suzhou (China). It also operates numerous sales and service centers worldwide. KHS manufactures modern filling and packaging systems for the high-capacity range at its headquarters in Dortmund, Germany, and at its factories in Bad Kreuznach, Kleve, Worms and Hamburg. The KHS Group is a wholly owned subsidiary of the SDAX-listed Salzgitter AG corporation. In 2020 the KHS Group and its 5,085 employees achieved a turnover of around €1.130 billion.

Firmenkontakt und Herausgeber der Meldung:

KHS GmbH
Juchostr. 20
44143 Dortmund
Telefon: +49 (231) 569-0
Telefax: +49 (231) 569-1541
http://www.khs.com

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