Model Number |
Crepe Bandage |
Crepe Bandage consists of characteristic fabric of plain weave. The warp threads are of wool, with a count not finer than 30 tex and not coarser than 35 tex and of twofold cotton threads with a count, after crepe twisting, not finer than 59 tex, each containing not less than 21 folding turns per cm. The weft threads are of singles cotton thread with a count not finer than 30 tex. The warp threads are arranged one twofold thread S-twist, two wool threads, one twofold thread Z-twist, two wool threads, repeated, together with twofold cotton binding threads at each cut edge. The fabric is clean and reasonably free from weaving defects and contains not more than traces of leaf residue, seed coat and other impurities. Crepe Bandage may be dyed. It is in one continuous length with no joins and has fast edges. For the purpose of this monograph the width is that portion between and including the fast edges of the unstretched bandage.
Content of wool: Not less than 33.3%
Elasticity: The fully-stretched length is not less than twice the unstretched length; the regain length is not more than two-thirds the fully-stretched length.
Threads per 10 cm Warp: cotton, 54 to 66; wool, 108 to 132,
Weight per unit area: not less than 115 g m-2.
|