Latest and Greatest in Wool Research
Compiled by Ashlene Fitzsimons 

Counting sheep isn’t the only way they help us sleep….

Recent studies have shown that a woollen under blanket can increase the amount of REM sleep and that a woollen duvet can lead to 25 per cent more stage 4 sleep (the deepest and most restful stage).  Other findings were that the relative humidity is much lower under a wool blanket.  Wool absorbs moisture vapour, keeping the wearer cool in humid conditions.  (Source: Farmers Guardian. Tonbridge: Feb 6, 2004. Pg. 20)

Non-Shrink Sheep
Scientists in Australia are working hard to develop new and improved sheep.  These “non-shrink” sheep will produce non-shrink, fully washable wool for the clothing industry.  This will allow people to wash wool along with the rest of their clothes, without the special care that is required now.  This same technology could eventually be used to create sheep’s wool that is stretchy, less scratchy, coloured or even glow-in-the-dark. (Source: Douglas, FoxNew Scientist. London: Dec 20, 2003-Jan 9 2004. Vol. 180, Iss. 2426-2428; pg. 68)

 If You’re Not Into GM Sheep…Try Non-Shrink Wool
Scientists in Japan have developed “Bio Tech Wool”, a new type of wool that can be washed in water without fear of shrinkage.  This process involves dipping the wool in protein dissolving enzymes, which is more durable than the conventional shrink proofing process of coating the fibres with resin.  The resultant wool repels water, and can be washed in a conventional washing machine.  (Source: Pacific Research Consulting.  Cosmetics & Toiletries & Household Marketing News in Japan. Tokyo: Jan 25, 2004.  Vol. 26, Iss. 1; pg. 1) 

Branching Out in Wool Research
Scientists in Australia and New Zealand are conducting new research into the molecular events that underlie wool development, which could improve wool production and profits. They are investigating whether the genetic basis of 'secondary' wool follicle development- -and a phenomenon known as 'branching' - can eventually be used to produce more fine-grade wool.  Studies have shown that sheep with finer wool have a greater percentage of branched follicles; however, as many as 25 per cent of these branched follicles may not mature to produce fibres.  If scientists can successfully intervene and increase fibre production, it will reduce fibre diameter in the long term.
(Source: CSIROnline.  Media Release - Ref PR04_124 - Jul 19, 2004. www.csiro.au)

 No Wool? No Problem!
Agricultural Research Service scientists are determining which breeds can be mated to produce “easy-care” sheep that do not require shearing.  This would increase profits for farmers interested in producing sheep meat exclusively rather than wool.  The experimental breeding is a combination of 2 hair breeds (Katahdin and Dorper) and 2 wool breeds (Rambouillet and Dorset).  This will hopefully help those farmers whose costs for shearing exceeds the price at which the wool can be sold.  (Source: David Elstein. Agricultural Research.  Washington: Apr. 2003. Vol. 51, Iss. 4; pg. 7) 

Greasy Wool is Right
This study looked at the possibility of using wool-based nonwoven material as absorbent for an oil spill cleanup.  The roughness of the wool fibre surface has an important role in oil sorption, and wool absorbed a significantly higher amount of oil than other investigated nonwoven materials.  Recycled wool-based nonwoven material showed good sorption properties and adequate reusability, indicating that it would be a viable alternative to synthetic materials that have poor biodegradability.  (Source: Maja M Radetic et al. Environmental Science & Technology.  Easton:  Mar 1, 2003. Vol. 37, Iss. 5; pg. 1008) 


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