EP 3191631 A1 20170719 - DEVICE AND METHOD FOR PREPARING CONTINUOUS NANOFIBROUS YARNS AND BUNDLES FROM ELECTROSPUN FIBERS AND FIBRILS
Title (en)
DEVICE AND METHOD FOR PREPARING CONTINUOUS NANOFIBROUS YARNS AND BUNDLES FROM ELECTROSPUN FIBERS AND FIBRILS
Title (de)
VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG KONTINUIERLICHER NANOFASERGARNE UND BÜNDEL AUS ELEKTROGESPONNENEN FASERN UND FIBRILLEN
Title (fr)
DISPOSITIF ET PROCÉDÉ DE PRÉPARATION DE FILS NANOFIBREUX CONTINUS ET DE FAISCEAUX À PARTIR DE FIBRILLES ET DE FIBRES ÉLECTROFILÉES
Publication
Application
Priority
- GB 201415820 A 20140908
- IB 2015056873 W 20150908
Abstract (en)
[origin: GB2529894A] Apparatus for preparing a continuous nanofibrous yarn comprising an electrocspinning chamber 1 with at least one first opening 3 in the upper region of the chamber to receive a gas and a second opening 14 in the bottom region of said chamber for discharging the gas and the yarn 7; means for creating helical movement of the gas 6 within the chamber; means for introducing a plurality of nanofibres into said chamber, wherein said nanofibres are twisted together by said helical movement of gas; and means for continuously removing said yarn from said camber through the second opening 14. The chamber may be shaped as an inverted cone, a bicone or cylinder; and have a negative pressure within the chamber created via the use of a fan 2 or vacuum pump around the base chamber which preferably creates a horizontal gas flow below the second opening. Alternatively the low pressure can be created by the use of a compressed air across the opening to create a venture effect. The means for introducing the nanofibres are via oppositely charged nozzles 5, and the yarn is preferably wound onto a roller 13. Alternatively the nanofibres are collected on a core yarn (16, fig 3b) that is pulled through the electrospinning chamber.
IPC 8 full level
D01D 5/00 (2006.01); D01H 1/115 (2006.01)
CPC (source: EP GB)
D01D 5/0007 (2013.01 - GB); D01D 5/0061 (2013.01 - EP)
Citation (search report)
See references of WO 2016038539A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
GB 201415820 D0 20141022; GB 2529894 A 20160309; EP 3191631 A1 20170719; EP 3191631 B1 20220831; WO 2016038539 A1 20160317
DOCDB simple family (application)
GB 201415820 A 20140908; EP 15774983 A 20150908; IB 2015056873 W 20150908