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A device and method for preparing superfine fiber bundles by melt blown method

A technology of ultra-fine fiber and melt-blown method, which is applied in the field of fiber manufacturing, can solve the problems of low strength, inability to use alone, and inability to use the properties of fiber bundles, etc., to achieve the effect of improving fiber strength and avoiding bonding

Active Publication Date: 2019-08-30
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Melt-blown ultra-fine fibers are thermoplastic materials that are melted under the blowing of high-speed hot air and stretched extremely to form ultra-fine fibers. However, because of its ultra-fineness, its strength is very low and it cannot be used alone, which greatly limits Expanded the scope of use of melt-blown microfibers
The usual melt-blown device lays the net directly to form a melt-blown cloth after the superfine fibers are sprayed out, and cannot collect single fibers or fiber bundles, so the properties of the fiber bundles cannot be utilized

Method used

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  • A device and method for preparing superfine fiber bundles by melt blown method
  • A device and method for preparing superfine fiber bundles by melt blown method
  • A device and method for preparing superfine fiber bundles by melt blown method

Examples

Experimental program
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Effect test

Embodiment 1

[0075] A device for preparing superfine fiber bundles by melt blown method. The hopper of the melt blown device is connected to the screw extruder pipe, the metering pump is connected to the screw extruder and the melt blown die head, and the hot air is distributed on both sides of the spinneret hole, cooling When the clustering device adopts the first embodiment, the cold air box 2 is set under the spinneret of the melt blown die head, the screen receiving device 3 is below the cold side blowing, and the bell-mouth cluster is placed horizontally on the screen at a certain angle to travel direction, the screen receiving device 3 is driven along the width direction of the meltblown device 1 from the end far away from the horn-mouth clusterer to the end close to the horn-mouth clusterer, and the microfiber bundles are further bundled by the horn-mouth clusterer sent to the collection unit. When the cooling and clustering device adopts the second embodiment, the cold air box 2 is...

Embodiment 2

[0078] A device for preparing superfine fiber bundles by melt blown method. The hopper of the melt blown device is connected to the screw extruder pipe, the metering pump is connected to the screw extruder and the melt blown die head, and the hot air is distributed on both sides of the spinneret hole, cooling When the clustering device adopts the first embodiment, the cold air box 2 is set under the spinneret of the melt blown die head, the screen receiving device 3 is below the cold side blowing, and the bell-mouth cluster is placed horizontally on the screen at a certain angle to travel direction, the screen receiving device 3 is driven along the width direction of the meltblown device 1 from the end far away from the horn-mouth clusterer to the end close to the horn-mouth clusterer, and the microfiber bundles are further bundled by the horn-mouth clusterer sent to the collection unit. When the cooling and clustering device adopts the second embodiment, the cold air box 2 is...

Embodiment 3

[0081] A device for preparing superfine fiber bundles by melt blown method. The hopper of the melt blown device is connected to the screw extruder pipe, the metering pump is connected to the screw extruder and the melt blown die head, and the hot air is distributed on both sides of the spinneret hole, cooling When the clustering device adopts the first embodiment, the cold air box 2 is set under the spinneret of the melt blown die head, the screen receiving device 3 is below the cold side blowing, and the bell-mouth cluster is placed horizontally on the screen at a certain angle to travel direction, the screen receiving device 3 is driven along the width direction of the meltblown device 1 from the end far away from the horn-mouth clusterer to the end close to the horn-mouth clusterer, and the microfiber bundles are further bundled by the horn-mouth clusterer sent to the collection unit. When the cooling and clustering device adopts the second embodiment, the cold air box 2 is...

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Abstract

The invention relates to a device and method for preparing a superfine fiber bundle by means of a melt-blowing method. The device comprises a melt-blowing unit, a cooling and bundling unit and a collecting unit. The cooling and bundling unit is arranged under the melt-blowing unit and cools and bundles superfine fibers sprayed by the melt-blowing unit; the cooling and bundling unit has two embodiments, for the first embodiment, the cooling and bundling unit comprises a packaged air conditioner and a bundling unit, and the bundling unit is arranged under the packaged air conditioner and bundles cooled superfine fibers; for the second embodiment, the cooling and bundling unit comprises a packaged air conditioner, a screen receiving unit and a bundling unit, and the screen receiving unit carries out transmission to the bundling unit in the breadth direction of the melt-blowing die head in the melt-blowing unit. According to the invention, by adding a cold side blowing unit, the cooling of melt-blown fibers is accelerated, the melt-blown fibers are prevented from being bonded, the screen moves in the direction being perpendicular to the breadth direction of a fiber web in a conventional non-woven fabric preparation method, the screen moves in the breadth direction of the fiber web in the method provided by the invention, or after being cooled, the superfine fibers are directly bundled, and collection of the melt-blown superfine fiber bundle is achieved.

Description

technical field [0001] The invention relates to the field of fiber manufacturing, in particular to a device and method for preparing superfine fiber bundles by using a melt blown method. Background technique [0002] Melt-blown ultra-fine fibers are thermoplastic materials that are melted under the blowing of high-speed hot air and stretched extremely to form ultra-fine fibers. However, because of its ultra-fineness, its strength is very low and it cannot be used alone, which greatly limits The scope of use of melt-blown microfibers has been expanded. The usual melt-blown device lays the net directly to form a melt-blown cloth after the ultrafine fibers are sprayed out, and cannot collect single fibers or fiber bundles, so the properties of the fiber bundles cannot be utilized. The melt-blown fiber bundle is an aggregate of countless melt-blown fibers, so it has a very large specific surface area, and then has a very good filtration and adsorption effect, and can also make ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/08D01D5/092D01D7/00
Inventor 邹汉涛王冰张荣波易长海韦炜周阳左丹英
Owner WUHAN TEXTILE UNIV
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