Steel and other metal items which contaminate wool bales can cause expensive damage to scouring and other processing machinery. Photo / NZW
Steel and other metal items which contaminate wool bales can cause expensive damage to scouring and other processing machinery. Photo / NZW
Southern wool classers have received a big tick for their efforts to reduce contamination in wool bales.
New Zealand Woolscouring Ltd has released statistics covering July 2019 to June 2020, on contamination and what they found in wool bales.
There were 724 incidents of contamination in bales in the NorthIsland, compared with 159 in the South Island.
That included plastic, cardboard, stock feed and fertiliser bags, press bars, shearing combs, hooks, wire, rubber, clothing, glass, rubbish and spray cans.
The lower figures in the South could be because wool classers were used more in southern sheds than in the North Island, NZW chief operating officer Tony Cunningham said.
Clothing is among the items found in wool bales in the past year. Photo / NZW
"If contamination goes through the scouring process, then machinery repairs and lost production could be quite a big cost to the company.
"We are pretty good at detecting metal but non-metal product is a big issue. The risk of having plastic imbedded in carpet is a big risk."
He has seen clothing, including hoodies and moccasins, going through.
"I have found an intact $10 note, full bottles of beer and a clock that stopped at 10am, so it must have fallen in the bale at smoko time."
NZWCA executive officer Bruce Abbott, of Mosgiel, said the care by wool classers, as well as training shed staff, had a big influence on what happened in southern sheds.
