Tuesday, 04 May 2021 13:55

Making wool great again

Written by  Nigel Malthus
Logan Williams has come up with a way to use NZ wool as the fibre reinforcing in a range of injection-moulding polymers. Supplied/NZ Merino. Logan Williams has come up with a way to use NZ wool as the fibre reinforcing in a range of injection-moulding polymers. Supplied/NZ Merino.

In a world where a vast range of everyday items are made of injection-moulded plastic, Christchurch inventor Logan Williams wants to put New Zealand wool in "pretty much everything".

Williams, who's already had several successful inventions to his name, joined New Zealand Merino as its director of technology and innovation in late 2019. His brief is to find new markets for wool, especially low-value coarse wools.

He has now developed a process to combine wool fibres with various polymers for use in injection-moulding manufacturing.

NZ Merino has launched a subsidiary company, Keravos, with a purpose-built full-scale plant in Hamilton producing the wool-polymer mix in the form of small pellets. This is the standard form of raw material for injection-mould manufacturing around the world. It has the capacity of four tonnes a day.

Williams says it will put wool into industries where it was never thought possible.

"So now you can have a woollen catamaran or a woollen kayak or a woollen cooler bin," he told Rural News.

Keravos is partnering with 17 companies so far to produce a range of items.

The pellets can also be converted into 3D-printing filaments for an even wider potential market.

Named in the Forbes magazine's "30 under 30" list for 2020, Williams has previously developed a method of producing biodegradable materials from didymo, polarised contact lenses for people with photosensitive epilepsy, a medical nebulizer and a methane-handling system taken up by Fonterra.

Williams is scheduled to speak on the wool/polymer development at a major agribusiness event, E Tipu 2021: The Boma NZ Agri Summit, to be held in Christchurch next week. Though not giving too much away, he is promising to have a major new wool-polymer product on display at the event.

$5/KG For Pieces!

The company has also developed a biodegradable version by using a corn-starch derivative as the polymer component.

However, Williams says wool could be mixed with whatever polymr a customer wants. "We can pretty much mix it with any polymer on the planet."

Williams says extensive independent testing has shown that the wool mix is about 20% stronger in both impact and tensile strength between 10% and 30% lighter than polymer alone. If it's biodegradable, it will biodegrade faster with wool in it.

It also has what he calls a "very cool" veneer. The product is about 20% wool on weight but 70% on volume. "Wool's quite light so that 20% weight sounds like nothing," he explains. "But when you're looking at the product and looking what's going in, it's actually a huge amount of wool."

The product was developed primarily in search of a way to use coarse wool, which otherwise has a very low value, and pay a good price for it.

"Our aim is to try and make it profitable and not just like scraping the barrel. It's actually making a decent profit from wool."

Williams says they coud use any type of wool.

"Ideally we take the cheapest wool off the farmer because we're fixing the price at $3/kg for the first two years and $5/kg after that. And we take any type of wool - so dags, bellies, side pieces," he told Rural News.

More like this

Pillow talk takes action

A call from her daughter prompted well-known Hawke's Bay wool broker and enthusiastic wool promoter Philippa Wright to set up a new venture - making wool pillows.

Woolly thinking pays off

Serial entrepreneur Logan Williams will be a guest speaker at this month's East Coast Farming Expo.

Aussie's loss is NZ's gain

In a twist on the usual formula, Australia fears a shortage of shearers in that country after New Zealand shearers return home once our borders reopen.

New wool products seek markets

A new initiative targeting new products and markets for NZ strong wool - with export applications as diverse as cosmetics and printing - has recently been launched.


Time's up

Chris Lewis, a Feds national board member and spokesman on immigration and labour issues for the past two years, will…

Give farmers a chance!

Outgoing Federated Farmers leader Chris Lewis believes successive governments have failed to give farmers the chance to resolve key issues…

NZ ploughmen Ireland bound

Two veteran NZ ploughmen have won themselves a trip to the World Ploughing Championships which is being held in Ireland…

Machinery & Products

A new approach to apprenticeships

By taking a new approach to its apprenticeship programme, agricultural equipment supplier Norwood says it is ensuring farmers’ machinery will…

Buck-Rake does the job

With many self-propelled forage harvester manufacturers offering machines hitting 1000hp, the bottleneck in any harvesting system is always likely to…

Pigtail standards made to last

Feedback from farmers highlighted frustration at the time and cost involved in frequently replacing failed pigtail posts.

» The RNG Weather Report

» Latest Print Issues Online

The Hound

Yeah, right!

OPINION: Your old mate reckons recent ‘research’ carried out by consultants PWC – claiming that ‘actively managed carbon forestry’ creates…

All Claas!

OPINION: Your canine crusader - like many in the sector probably would have - raised an eyebrow when he heard…

» Connect with Rural News

» eNewsletter

Subscribe to our weekly newsletter