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Preferential heating is the name of an energy-efficient process from KHS for the weight-optimised production of oval PET bottles. Henkel has now invested in a KHS stretch blow-moulding machine with preferential heating for its personal care brand Fa for the first time.
In addition to the food industry, consumer goods producers such as Henkel are now relying on modern technology. It makes it possible, to produce complex containers economically in-house. External purchasing is no longer necessary. Henkel is thus improving its ecological footprint and simplifying logistics and production processes at the same time. For the Wassertrüdingen site, the Group has now invested in a KHS stretch blow-moulding machine with preferential heating for its Fa personal care brand for the first time. The Reduction in bottle weight and simultaneous increase in the proportion of recycled packaging were the main drivers behind the purchase decision.
Henkel has been using stretch blow moulding technology from the company for decades. KHS. The proven Blomax-machines with preferential heating are used worldwide for the production of containers in which fabric softeners and household cleaners are filled in the Laundry & Home Care business unit - and now also for shower gels in Germany.
"We are thus consistently pursuing the goal of further reducing the ecological footprint along our value chain." Claus Meyer, Henkel Beauty Care
Thanks to the proven KHS technology and an output of up to 21,700 bottles per hour production processes are now even more efficient. Henkel benefits from more flexible logistics, as Björn von Lengerke, Global Product Account Manager at KHS, confirms: "We can produce the respective containers for different products ourselves. This allows production plans to be organised more flexibly." At the same time reduces resource consumption by eliminating longer transport distances by lorry - an important aspect of climate protection measures.
Weight reduction and use of recycled materials
As a partner, KHS supports the sustainable positioning of the portfolio. With the help of Bottles & Shapesthe holistic consulting programme for container design, Achieve material savings of 14 per cent for the 250 millilitre size compared to the previous containers - while maintaining the required bottle quality. The bottles are also made from 100 per cent recycled PET - 25 per cent of which is so-called social plastic. "We are planning to increase this value for other containers in the future in order to make our entire portfolio even more environmentally friendly," says Christian Bauer, Managing Director at the Wassertrüdingen site. By 2025, for example, 100 per cent of Henkel's packaging is to be recyclable or reusable.
Even with high recycled content of up to 100 per cent According to KHS expert von Lengerke, it is possible to mould extremely oval bottles: "In the preferential heating process, preforms are first heated in the oven while rotating. Rotation is then stopped in the downstream section so that only certain areas of the PET blank are heated further." A specially developed heating box transfers the required heating energy through opposing radiator levels. "This optimises the material distribution and stability of the bottle", von Lengerke continues. This process offers advantages not only in the beauty care sector, but also in the processing of cleaning agents, detergents and personal care products, which are often filled in oval PET packaging.
SourceKHS : KHS
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