INSTALLATION FOR OBTAINING SORPTION FILTERING NONWOVEN MATERIALS WITH IMPROVED PROPERTIES FROM POLYMER SOLUTIONS BY METHOD OF AERODYNAMIC FORMATION Russian patent published in 2018 - IPC D04H3/16 B01J20/30 

FIELD: non-woven materials.

SUBSTANCE: invention relates to the production of nonwoven materials, namely to an apparatus for producing multi-layer sorption-filtering composite nonwoven materials from polymer solutions by aerodynamic formation. Device for obtaining sorption-filtering non-woven materials from polymer solutions by aerodynamic formation includes a unit for the preparation of spinning solutions, a forming machine with spinning blocks, a washing unit, a dryer for drying the material, and a winding assembly of the finished nonwoven, and includes a system for preventing the pressure pulsation of the spinning liquor supplied to the mold blocks, maintaining the ratio of the maximum spinneret drawing and the minimum spinneret drawing to not more than 1.04, the laying device providing a ratio of the speed of the spinning blocks relative to the speed of the conveyor in the range from 16 to 80, a washing unit equipped with a solvent washing system with water by counterflow and additional circulation circuits, a three-section dryer for dehumidifying the ratio of the set temperature of the first section to the second of 1.2 to 1.3 and the temperature of the second section to the third of 1.3 to 1.4, where the material can be obtained in one step.

EFFECT: installation for obtaining sorption-filtering non-woven materials from polymer solutions is proposed.

1 cl, 3 ex, 8 dwg