METHOD OF PREPARING NONWOVEN FILTERING MATERIAL FROM POLYMER MELT Russian patent published in 1995 - IPC

Abstract RU 2041994 C1

FIELD: chemical industry. SUBSTANCE: method involves polymer extrusion through the cone spinneret, then thread of twisted air flow jet which is twisted preliminary in cone chamber under pressure exceeding pressure out of chamber by 1.2-1.9-fold, oriented in the space as rings which are put in layers on the receptacle surface with reciprocation motion possibility. EFFECT: enhanced effectiveness of forming. 2 cl, 1 dwg

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RU 2 041 994 C1

Authors

Alferov M.Ja.

Dates

1995-08-20Published

1991-08-29Filed