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A device and method for ring spinning using melt-blown ultrafine fibers

A superfine fiber and ring spinning technology, applied in the field of fiber manufacturing, can solve the problems of antibacterial, heat insulation, sound absorption, limited filtration and adsorption, limited improvement of yarn specific surface area, and easy damage of superfine fibers. Achieve high meltblown fiber content, low yarn strength and good evenness

Active Publication Date: 2019-06-25
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low strength and brittleness of ultrafine fibers, if they pass through the rubbing rollers of the rubbing roller mechanism before twisting, the ultrafine fibers that are simply covered on the surface of the filaments or yarns and whose frictional cohesion is not strong are easily damaged. ; and although there are microfibers on the surface of the yarn, because only the outer layer is superfine fibers, the specific surface area of ​​the final yarn is limited, and the effects of functions such as antibacterial, heat insulation, sound absorption, and filter adsorption are also Limited; moreover, microfibers are short fibers, and the yarns formed by wrapping them on the surface of filaments or yarns and twisting them have many hairiness and unevenness

Method used

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  • A device and method for ring spinning using melt-blown ultrafine fibers
  • A device and method for ring spinning using melt-blown ultrafine fibers
  • A device and method for ring spinning using melt-blown ultrafine fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A kind of method that utilizes superfine fiber to carry out ring spinning, comprises the following steps:

[0074] (1) Preparation of ultrafine fibers: After the PP pellets enter the hopper of the melt blown device, they are melted by the screw extruder, and the metering pump is quantitatively sprayed out from the spinneret. The temperatures in the four zones of the screw extruder are 260°C, 260°C °C, 270 °C, 270 °C. The extruded melt-blown ultrafine fibers are first drawn and thinned rapidly under the hot air on both sides. The temperature of the hot air is 220°C, the pressure of the hot air is 0.5MPa, and the speed of the melt-blown is 10m / min. After the fiber is drawn by hot air, it is cooled in the cold air box. The temperature of the cooling air is 8°C, and the flow rate of the cooling air is 15000m 3 / h, the cooling wind pressure is 1500Pa, the wind speed is 2m / s, and the average diameter of the obtained ultrafine fibers is 1 μm.

[0075] (2) Cooling and cluster...

Embodiment 2

[0080] (1) Preparation of ultrafine fibers: After the PP pellets enter the hopper of the melt blown device, they are melted by the screw extruder, and the metering pump is quantitatively sprayed out from the spinneret. The temperatures in the four zones of the screw extruder are 260°C, 260°C °C, 270 °C, 270 °C. The extruded melt-blown ultrafine fibers are first drawn and thinned rapidly under the hot air on both sides. The temperature of the hot air is 220°C, the pressure of the hot air is 0.5MPa, and the speed of the melt-blown is 10m / min. After the fiber is drawn by hot air, it is cooled in the cold air box. The temperature of the cooling air is 8°C, and the flow rate of the cooling air is 15000m 3 / h, the cooling wind pressure is 1500Pa, the wind speed is 2m / s, and the average diameter of the obtained ultrafine fibers is 1 μm.

[0081] (2) Cooling and clustering the melt-blown ultrafine fibers: when the cooling and clustering device adopts the first embodiment, the melt-bl...

Embodiment 3

[0086] (1) Preparation of ultrafine fibers: After the PP pellets enter the hopper of the melt blown device, they are melted by the screw extruder, and the metering pump is quantitatively sprayed out from the spinneret. The temperatures in the four zones of the screw extruder are 260°C, 260°C °C, 270 °C, 270 °C. The extruded melt-blown ultrafine fibers are first drawn and thinned rapidly under the hot air on both sides. The temperature of the hot air is 220°C, the pressure of the hot air is 0.5MPa, and the speed of the melt-blown is 10m / min. After the fiber is drawn by hot air, it is cooled in the cold air box. The temperature of the cooling air is 8°C, and the flow rate of the cooling air is 15000m 3 / h, the cooling wind pressure is 1500Pa, the wind speed is 2m / s, and the average diameter of the obtained ultrafine fibers is 1 μm.

[0087] (2) Cooling and clustering the melt-blown ultrafine fibers: when the cooling and clustering device adopts the first embodiment, the melt-bl...

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Abstract

The invention relates to an apparatus and method for ring spinning via melt-blown superfine fibers. The apparatus comprises a melt blowing device, a cooling bundling device, a twisting device and a ring spinning device; the melt blowing device is used for preparing melt-blown superfine fibers and conveying the melt-blown superfine fibers to the cooling bundling device; the cooling bundling device is disposed below the melt blowing device and is used for cooling and bundling the superfine fibers blown by the melt blowing device; the twisting device is used for twisting the melt-blown superfine fibers bundled; the ring spinning device is used for spinning the melt-blown fibers into superfine fiber yarns by means of ring spinning. Superfine fibers are spun directly into yarns or core-spun yarns, the melt-blown fiber content is high, the specific surface area is large, the fineness and quality are good, and the yarns have the good functions such as heat insulation, sound absorption, filtration and adsorption; the fibers have good cohesive friction, the spun yarns have little hair and good evenness.

Description

technical field [0001] The invention relates to the field of fiber manufacturing, in particular to a device and method for ring spinning using melt-blown ultrafine fibers. 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. Ultrafine fiber bundles are aggregates of countless ultrafine fibers, so they have a very large specific surface area, and then have a very good filtration and adsorption effect, and can also make up for the proble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H1/02D01D7/00D01D5/092
CPCD01D5/092D01D7/00D01H1/02
Inventor 邹汉涛王冰左丹英易长海周阳张荣波徐杰
Owner WUHAN TEXTILE UNIV
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