Bio-on units will develop links between the future PHA plant and other production sites in the area – which have yet to be identified. “The PHA revolution is already a reality, and those who want to implement radically green technologies and shift towards sustainable production systems have no more excuses,” said Marco Astorri, president and CEO of Bio-on.

Chinaplas exhibitors show green credentials

There was a large packaging presence at Chinaplas – including a focus on bioplastics.

Hubei Guanghe Biotechnology, for instance, displayed a fully

biodegradable material – GH7-1-360 – and a bio-based material with a biogenic carbon content of almost 20% (JH330-D16A0). Both were developed in collaboration with the Changchun Institute of Applied Chemistry at the Chinese Academy of Sciences. The materials, designed for courier bags and bubble courier bags, have passed the European DIN Certco’s certification for fully biodegradable and bio-based products. NatureWorks showcased a new generation of tea and coffee bags made of Ingeo PLA-based biopolymer, which is not only compostable but also helps improve consumer experience in terms of flavour and aroma – with better organoleptic properties. The product is applicable to various fields. And Jandi’s Industrial showed its manufacturing line for

biodegradable T-shirt bags, where the steps of processing raw materials, film blowing, printing, bag manufacturing, recycling of residual materials and automatic packing all take place in a single production line. As hot films are immediately processed, it makes for high sealing quality. The residual materials are also recycled immediately.

At the same time, bio-based and compostable material from Suzhou Hanfeng New Material offers new ways of making traditional products. Its technology for blending PLA with PBAT creates a material that can used to make products including green courier bags, supermarket shopping bags, bags on a roll and flat-top bags.

CLICK ON THE LINKS FOR MORE INFORMATION: � (Hubei Guanghe) � � (Jandi’s) � (Suzhou Hangfeng)

20 FILM & SHEET EXTRUSION | July/August 2019

Preventing leakage Delegates at the recent AMI Thin Wall Packaging conference in Cologne, Germany, heard how biodegradable plastic could help to reduce the amount of thin wall packaging that escapes the recycling process. Hery Randrianantoandro, vice president of sales and marketing at UK-based Polymateria, said that the company’s Biotransformation technology can create polymers that biodegrade in the natural environment. He said that Polymateria’s specially designed masterbatch can be added to polymers at a 1-2% loading during manufacturing. The masterbatch is different for each plastic, but it is optimised for polyolefins such as PP and L/LDPE. If it leaks into the environment, the polymer will biodegrade under the influence of air, water, light, heat and microbes. The masterbatch works by adding ‘pre biotic

activators’ into the polymer. These draw in microbes, which help to break down the polymer, he said. The broken-down chains are then able to decay naturally. There are two variants of the technology:

Cycle+, for when recycling options are available; and DegrAid, when they are not. The technology is currently available for

applications including shrink wrap, thermoformed punnets and thin polyethylene bags, such as those used in supermarkets to hold loose fruit and vegetables. In the short term, the company intends to expand the technology to BOPP and PE composites – such as stand-up pouches. Longer term research will focus on PE and PET packaging, and as a way of improving the biodegradability of PLA.


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