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Multihole spinneret plate for fusing and spinning filaments

A technology of spinneret and melt spinning, which is applied in the direction of spinneret assembly, filament/thread forming, textile and paper making, etc., which can solve the problem of uneven cooling of spinneret, achieve good cooling effect and improve cooling efficiency , the effect of excellent fiber performance

Active Publication Date: 2016-12-21
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem of uneven cooling of the existing spinneret under the blowing of the surrounding air, and to realize large-scale production spinning, and to provide a new spinneret

Method used

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  • Multihole spinneret plate for fusing and spinning filaments
  • Multihole spinneret plate for fusing and spinning filaments
  • Multihole spinneret plate for fusing and spinning filaments

Examples

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Effect test

Embodiment 1

[0026] A multi-hole spinneret for melt spinning filaments, the spinneret holes on the spinneret are arranged in an elliptical arrangement, the elliptical arrangement means that the centers of the spinneret holes are located on concentric ellipses, and the concentric ellipses are a series of ellipses, all The major axes of the ellipses are collinear and the minor axes are collinear.

[0027] like figure 1 As shown, the ratio of the length of the major axis to the minor axis of the ellipse is 1.3, the distance between adjacent spinneret holes is equal to the diameter of the guide hole of the spinneret hole plus 1.5mm, the spinneret is a circular spinneret, and the circular spinneret The difference between the diameter of the plate and the length of the largest major axis of the series ellipse is 11mm, the diameter of the guide hole of the spinneret hole is 2.0mm, the number of spinneret holes in the spinneret is 374, and the cross-section of the spinneret microholes in the spinn...

Embodiment 2

[0029] A multi-hole spinneret for melt spinning filaments, the spinneret holes on the spinneret are arranged in an elliptical arrangement, the elliptical arrangement means that the centers of the spinneret holes are located on concentric ellipses, and the concentric ellipses are a series of ellipses, all The major axes of the ellipses are collinear and the minor axes are collinear.

[0030] like image 3 As shown, the ratio of the length of the major axis of the ellipse to the length of the minor axis is 1.6, the distance between adjacent spinneret holes is equal to the diameter of the guide hole of the spinneret hole plus 1.5mm, the spinneret is a circular spinneret, and the circular spinneret The difference between the diameter of the plate and the length of the largest major axis of the series ellipse is 11mm, the diameter of the guide hole of the spinneret hole is 2.0mm, the number of spinneret holes in the spinneret is 382, ​​and the cross-section of the spinneret microho...

Embodiment 3

[0035] A multi-hole spinneret for melt spinning filaments, the spinneret holes on the spinneret are arranged in an elliptical arrangement, the elliptical arrangement means that the centers of the spinneret holes are located on concentric ellipses, and the concentric ellipses are a series of ellipses, all The major axes of the ellipses are collinear and the minor axes are collinear.

[0036] The arrangement of the spinneret holes is symmetrical about the major axis, the ratio of the length of the major axis to the minor axis of the ellipse is 1.4, the distance between adjacent spinneret holes is equal to the diameter of the guide hole of the spinneret hole plus 1.6mm, and the spinneret is a circular nozzle. The diameter of the spinneret, the difference between the diameter of the circular spinneret and the length of the largest major axis of the series ellipse is 12mm, the diameter of the guide hole of the spinneret is 1.5mm, the number of spinneret holes of the spinneret is 192...

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Abstract

The invention relates to a multihole spinneret plate for fusing and spinning filaments. Spinneret holes in the spinneret plate are arranged in an oval shape, and oval arrangement is that hole centers of the spinneret holes are located on concentric ovals which are series ovals, the long axes of all the ovals are collinear, and the short axes of all the ovals are collinear. When the active area of the spinneret plate is the same, the number of layers of oval arrangement of the spinneret holes is smaller than the number of layers of circular arrangement, the hole number of oval arrangement of the spinneret holes is larger than the hole number of circular arrangement, cooling of higher degree can be achieved through oval arrangement, and the cooling efficiency is obviously improved.

Description

technical field [0001] The invention belongs to the field of spinnerets, and relates to a porous spinneret for melt spinning filaments, in particular to a porous spinneret for melt spinning filaments with spinneret holes arranged in an ellipse. Background technique [0002] Polyethylene terephthalate (PET) has the characteristics of high mechanical properties, wear resistance, creep resistance and electrical insulation properties, and is rich in raw materials. It is the fastest growing synthetic fiber variety with the largest production capacity in recent years. PET microfiber is a high-tech and high-value-added product with excellent performance and unique style. It has broad application prospects in the fields of medium and high-end fabrics, construction, biomedicine, industrial filtration, military protection, and environmental protection. There are many ways to prepare PET ultrafine fibers, among which the melt spinning method is currently the most widely used in industr...

Claims

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Application Information

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IPC IPC(8): D01D5/253D01D4/02
Inventor 范红卫李文刚王丽丽陈德伟汤方明尹立新丁竹君
Owner JIANGSU HENGLI CHEM FIBER