METHOD OF PRODUCING SINGLE-TYPE BAST FIBRE Russian patent published in 2016 - IPC D01B1/00 

FIELD: textile.

SUBSTANCE: invention relates to primary processing bast-fibre crops in order to obtain a single-type bast fibre as a raw material for textile industry and can be used in processing bast-fibre crops both in rolls and in square or rectangular piles. It is implemented by that in the proposed method of producing a single-type bast fibre, which involves feeding the material into the processing zone under the action of an air flow with creation of the material vibration therein and reduction of forces of interaction of stems, their sections, fibrous strands, destruction of the stems structure and separating chaff from fibers, separation of bast fibres and the chaff in two steps. At the first step the chaff-and-fibre mass is enriched owing to removing the chaff based on differences of aerodynamic properties of bast fibre and the chaff at interaction with an air jet, bast crops in a roll are subjected to cutting into rectangular portions, their regular feeding, pressing and stapling by cutting the chaff-and-fibre mixture in them before separating the fibres and the chaff, crushing and tillage.

EFFECT: technical result is reduction of the chaff and foreign impurities weight ratio in the obtained single-type bast fibre, higher efficiency of processing, production of a single-type bast fibre with adjustable in a wide range length.

1 cl, 2 dwg