D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
D01B1/10—Separating vegetable fibres from stalks or leaves
D—TEXTILES; PAPER
D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
D01C1/00—Treatment of vegetable material
D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
