Fibers such as caustic-treated non-round polyester fibers are prepared having certain lubricants strongly adhered to the surfaces thereof. These fibers are prepared by contacting the fibers, such as immediately prior to a crimping means, with a suitable heated hydrophilic lubricant in a processing...http://www.google.com.au/patents/US5677058?utm_source=gb-gplus-sharePatent US5677058 - Lubricant impregnated fibers and processes for preparation thereof