METHOD OF PRODUCTION OF BAST FIBRE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC D01B1/00 

FIELD: textiles, paper.

SUBSTANCE: invention relates to the field of primary processing of bast plants, namely, to methods of production of bast fibre and devices for their implementation. The method of production of bast fibre comprises supplying material to the processing zone, destruction of stem structure and separation of chaff from the fibres due to intensive sliding bending-fracture, the subsequent separation of bast fibres and the chaff. Feeding the material into the processing zone is carried out under the action of the air stream with creation of the material vibration in it and decrease in the interaction forces of the stems, their parts, fibrous strands. The separation of bast fibres and the chaff is carried out in two stages, on the first of which the enrichment of the chaff-fibre mass is carried out through removal of the chaff, based on differences in the aerodynamic properties of bast fibres and the chaff during the interaction with the airflow. The device comprises a disintegrator of two units of purification, sequentially mounted along the path of the material displacement. In the centre of the disintegrator rotor a cone-shaped divider is mounted. The first purification unit is made in the form of a horizontal plate discharger.

EFFECT: improved fibre quality through reduction of the amount of mechanical actions during its separation from the bast raw material, reduction of energy and material consumption of the device to obtain bast fibres is provided.

8 cl, 1 dwg