Table 2. Physical properties of polyester & acrylic microfibres with different
linear densities [8,9,15,16].
Type of fibre
Property
Polyester Acrylic
Linear density, dtex 1.3 0.8 1.3 0.5 0.5 0.8
Length, mm 38 32 32 40 32 40
Tenacity, cN/dtex 6.32 5.53 3.6 4.92 2.8 3.8
Elongation at
break, % 19.5 19.5 32 24.9 20-30 30