METHOD OF MAKING BUNDLES OF ACETATE FIBRE AND ACETATE BUNDLES MADE USING SAID METHOD Russian patent published in 2011 - IPC D01D5/96 D01F2/24 

FIELD: chemistry.

SUBSTANCE: method of making a bundle from acetate fibre involves a step for obtaining initial liquid by dissolving a starting polymer in a solvent, a spinning step on which the initial liquid is released from a draw plate, and the said solvent is evaporated in a heated medium, a moistening and corrugating step from which a primary bundle of fibres is obtained, having moisture content of 23-50 wt %, a step for primary drying at temperature equal to or higher than boiling point of the said solvent, but not higher than 85°C, and a step for secondary drying on which further drying is carried out until achieving the desired moisture content, thus obtaining the said bundle of acetate fibres. Disclosed also is an acetate bundle made using said method, in which solvent content is less than 0.10 wt %.

EFFECT: invention enables obtaining acetate bundles with very low solvent content and with high production efficiency.

4 cl, 3 dwg, 2 tbl