The elementary fibers are bound together end to end by pectin
to form bundles. Each bundle consists of 10–40 individual fibers,
that are about 20–30 mm long and 0.015–0.020 mm in diameter.
The fiber lengths vary depending on the position in the stem.
The bundles that are oval in shape display high quality while
those irregularly shaped show poor quality (Van Sumere, 1992).
Linseed straw offers low-grade fibers, which cannot be used for
fine linen textile. Therefore for years, linseed straw was treated
as a by-product, which was burned or chopped to spread on
fields. However, recently linseed fiber has managed to meet the
demands of the composite and specialty paper industry by providing
value-added products and in this way might improve farming
economy.