Nanofiber manufacturing device

a manufacturing device and nanofiber technology, applied in the field of nanofiber manufacturing equipment, can solve the problems of difficult continuous operation of the electrospinning device, increased leak current to an undesirable level, and caused by the breakdown of the insulation between the collector and the case and other members, and achieve the effect of stably producing nanofibers, simple structure and shap
US20130273190A1Inactive Publication Date: 2013-10-17TOPTEC +1
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
TOPTEC
Publication Date
2013-10-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a nanofiber manufacturing apparatus having a plurality of electrospinning units disposed serially along the conveying direction of a long sheet, each electrospinning unit including: a conductive case; a collector attached to the case by means of an insulation member; a nozzle block disposed to face the collector and having a plurality of nozzles from which polymer solution is ejected mounted thereon; a power supply adapted to apply a high voltage to a space between the collector and the nozzle block; an auxiliary belt formed of an insulative porous endless belt located and freely rotated at a position encompassing the collector; and an auxiliary belt driver adapted to rotate the auxiliary belt to a rotating speed corresponding to the conveying speed of the long sheet, wherein the positive electrode of the power supply is connected to the collector, and the negative electrode thereof to the nozzle block and the case, and when the collector is seen from the nozzle block, the outer edge of the insulation member is located more outwardly than the outer edge of the collector, so that if it is assumed that the thickness of the insulation member is a and the distance between the outer edge of the insulation member and the outer edge of the collector is b, it is satisfied that a≧6 mm and a+b≧50 mm.
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Description

CROSS REFERENCE RELATED APPLICATION

[0001] This application claims foreign priority of Japanese Patent Application No. 2010-272078, filed on Dec. 6, 2010 and Korean Patent Application No. 10-2011-0017376, filed on Feb. 25, 2011, which are incorporated by reference in their entirety into this application.TECHNICAL FIELD

[0002] The present invention relates to a nanofiber manufacturing apparatus.BACKGROUND ART

[0003] In conventional practices, there is proposed a nanofiber manufacturing apparatus having a plurality of electrospinning units located along a given conveying direction in which a long sheet is conveyed. Further, as the electrospinning devices used in such nanofiber manufacturing apparatus, there has been proposed Japanese Patent No. 2008-506864 (hereinafter, referred to as cited document) wherein each electrospinning device applies a high voltage to a collector in the state where a nozzle block is grounded, thereby conducting electrospinning.

[0004] FIG. 30 shows an electrospinnin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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