Some important terms of cotton fibers
Fibrils: The fibrils are composed of smaller
microfibrils,the smallest being of cellulose molecules , which constituents the
cell wall of the cellulose fiber . It has been considered that the
microfibrils of cellulose is the
smallest morphological unit with a diameter of about 3.5 nm , finer
microfibrils may have also diameter less
than 2 nm.
Convolution : The lumen of the growing acts as a channel
through which materials are carried along the fiber . When the ball opens, the
fibers dry. The removal of fluids from the lumen and inter molecular water in
the cellulose during drying causes the cylinderical fibers to form or
convolution. In fully matured fiber there are between 200 to 300 convolutions
per inch.
Dead Fiber: Immature fibers are called dead fibers which
growth came to an end before they were mature. The dry immature fiber does not
show the oval or kidney like cross section . Often immature fiber shows U shaped
cross section.
Neps: Neps are
fiber entanglements that have a hard
central knot that is detectable. The immature thin wall fibers are more
flexible than the thick walled fibers , so that the bend and tangle more easily
forming neps.
Lint: The relatively long fiber lengths ( about 1 inch (25.4
mm) or longer ) on the cotton seed relate to the fiber that are used in textile industries . This raw cotton fiber . which can be spun
into textile yarns are called Lint.
Linters: Some cultivated cotton produce a second layer of
short fuzzy hairs called linters. These linters are used for making special
photographic paper and special paper for money note. It also used as raw
material for acetate fiber.
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