New Lint Cleaner Reduces Cotton Waste
February 19, 2003
A new invention developed by Agricultural Research Service engineer W.
Stanley Anthony reduces the amount of usable cotton typically lost in gins and
increases the weight of a single bale of cotton after ginning by about 10
The device reduces the amount of cotton fiber normally wasted by a gin's
saw lint cleaners. After lint is separated from the seed, lint cleaners remove
foreign matter, moisture and other contaminants that reduce the value of the
crop. The lint-cleaning stage usually results in losses of about 20 pounds per
500-pound cotton bale, according to Anthony, who is the research leader at ARS'
Ginning Research Unit in Stoneville, Miss.
Anthony developed a new lint cleaner that contains an additional saw
cylinder to reprocess fiber that is normally ejected with the waste. The
invention prevents most good fiber from being ejected from the lint cleaner
along with the leaf particles, sticks, stems, seed coat fragments, grass and
bark that must be removed. The cleaning efficiency of the device is equal to
that of a standard lint cleaner. Only one doffing brush cylinder is used to
remove fiber from both saw cylinders. The device performed well in field tests
in a commercial gin during the entire 2002 gin season, according to Anthony.
The enhanced method could help growers increase the value of their
crops. Cotton is the most important textile fiber in the world. It accounts for
more than 40 percent of total world fiber production, according to USDA's
Economic Research Service. The U.S.
cotton industry accounts for more than $25 billion in products and services
The device could also be used to separate fibers from alternative crops,
such as kenaf and flax, which are used in the production of paper and linen.
ARS, the U.S. Department of
Agriculture's chief scientific research agency, has filed a patent on the
invention. The device is available for licensing by the ARS
Office of Technology Transfer.