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Jet fiber electrostatic electret and fiber stretching device and method for melt-blown fabrics

A non-woven fabric, electrostatic electret technology, applied in the directions of non-woven fabric, melt spinning, fiber processing, etc., can solve the problems of high cost and poor electrostatic electret effect, and achieve the effect of good density and good blocking

Active Publication Date: 2020-11-10
江科
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The original melt-blown nonwoven fabric generally adopts the high-voltage electrostatic corona electret method after the cloth is formed, but the electrostatic electret effect of this method is not good. The original melt-blown process generally produces fibers with a size of 2 to 10 microns. It is very difficult to increase the fiber fineness and the cost is very high. For this reason, those skilled in the art have proposed a device and method for spraying fiber electrostatic electret and fiber stretching of melt-blown nonwovens

Method used

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  • Jet fiber electrostatic electret and fiber stretching device and method for melt-blown fabrics
  • Jet fiber electrostatic electret and fiber stretching device and method for melt-blown fabrics
  • Jet fiber electrostatic electret and fiber stretching device and method for melt-blown fabrics

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] see figure 1 , the present invention provides a technical solution: a melt-blown nonwoven fabric spray fiber electrostatic electret and fiber stretching device, including:

[0037] Screw extruder 1, used for hot-melt extrusion processing of raw materials for producing melt-blown cloth;

[0038] The melt filter 2 is connected in series with the discharge port of the screw extruder 1, and is used to filter the melt produced by the screw extruder 1;

[0...

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Abstract

The invention discloses a jet fiber electrostatic electret and fiber stretching device and method for melt-blown fabrics, and relates to the technical field of melt-blown fabric production. A mesh belt receiving device is arranged at a position close to a first needle-shaped corona electret strip and a second needle-shaped corona electret strip; an insulating air draft device is arranged in the mesh belt receiving device, a plurality of high-voltage electrode plates are fixedly arranged at an air inlet of the insulating air draft device, a plurality of fine air passing holes are formed in eachhigh-voltage electrode plate, and the input ends of the high-voltage electrode plates are electrically connected with the output end of a third high-voltage electrostatic generator. By adding staticelectricity twice, the static electricity of melt-blown cloth can be better, and besides, the melt-blown cloth can achieve multiple melt-blown layers after the static electricity is added twice; in addition, an air suction device and a static stretching device are arranged at the bottom, so that sprayed melt-blown fibers can achieve the stretching effect again, and the diameter of the melt-blown fibers reaches the nanometer level.

Description

technical field [0001] The invention relates to the technical field of melt-blown nonwoven fabric production, in particular to a melt-blown nonwoven fabric spraying fiber electrostatic electret and fiber stretching device and method. Background technique [0002] The combination of electrospinning technology, corona electrostatic electret process, and meltblown method improves the electrostatic capacity of the meltblown cloth, so that the jetted fiber starts to electret high-voltage static electricity after it comes out of the spinneret of the meltblown die head, and the high-voltage static electricity Cool the melt-blown fibers for stretching to increase the fineness of the melt-blown fibers. Existing experiments have proved that the fiber fineness can reach up to 300 nanometers. [0003] The original melt-blown nonwoven fabric generally adopts the high-voltage electrostatic corona electret method after the cloth is formed, but the electrostatic electret effect of this meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/098D01D5/00D04H1/728D04H3/02D06M10/00
CPCD01D5/098D01D5/0985D01D5/0023D01D5/0092D04H1/728D04H3/02D06M10/00Y02P70/62
Inventor 江科
Owner 江科
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