FIELD: textile industry; preparation of flax fiber for blending with other fibers. SUBSTANCE: method provides for carding of flax fiber, formation of fibrous product in form of sliver or lap, its straightening, stretching, supplying to cutting zone and cutting, straightening and stretching of fibrous product are performed with the help of supporting conveyor moving in direction of motion of fibrous product with speed which is 1.11-1.16 times as low as that of rotation of supplying rolls with specific linear density of layer of fibrous product equalling 8-10 ktex/cm. EFFECT: increased quality of stapled flax fiber and higher productivity of equipment in its further processing due to reduced scattering of fiber length from preset range of fiber sizes. 1 dwg
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