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Net-shaped filament and production method thereof

A manufacturing method and monofilament technology, applied in melt spinning, stretch spinning, textiles and papermaking, etc., can solve the problems of thick monofilament and softness difficult to meet the use requirements, and achieve the effect of improving softness

Inactive Publication Date: 2016-09-28
马海燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the field of engineering construction, generally thick monofilament bundles are used as materials, but due to the relatively thick monofilament, its softness is difficult to meet the use requirements

Method used

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  • Net-shaped filament and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] refer to figure 1 , the polypropylene with a melt index of 6g / 10min (test temperature 250°C, load: 2.16kg) is fed into a screw extruder to melt, and then extruded into a wide film through a die, after liquid cooling, heat stretching, heat setting, opening Netting, winding, and finished products; liquid cooling is water cooling, and the liquid cooling temperature is 40°C; the heat stretching temperature is 120-200°C, and the stretching ratio is 2.5-4.9 times; the heat setting temperature is 150-220°C; The obtained product has a thickness of 0.04 mm, a width of 3 cm, and a mesh length of 1.5 cm; the strength of the product is 5.5 cN / dtex.

Embodiment 2

[0036] Feed polypropylene with a melt index of 6g / 10min (test temperature 250°C, load: 2.16kg) into a screw extruder to melt, then extrude it into a wide film through a die, and undergo liquid cooling, heat stretching, heat setting, and mesh opening , coiled, and made into a finished product; the liquid cooling is water cooling, and the liquid cooling temperature is 40°C; the heat stretching temperature is 120-200°C, and the stretching ratio is 2.5-4.9 times; the heat setting temperature is 150-220°C; The obtained product has a thickness of 0.08 mm, a width of 3 cm, and a mesh length of 3 cm; the strength of the product is 5.2 cN / dtex.

Embodiment 3

[0038] Feed polypropylene with a melt index of 15g / 10min (test temperature 250°C, load: 2.16kg) into a screw extruder to melt, and then extrude it into a wide film through a die, after liquid cooling, heat stretching, heat setting, and mesh opening , coiled, and made into a finished product; the liquid cooling is water cooling, and the liquid cooling temperature is 40°C; the heat stretching temperature is 120-200°C, and the stretching ratio is 2.5-4.9 times; the heat setting temperature is 150-220°C; The obtained product has a thickness of 0.1 mm, a width of 8 cm, and a mesh length of 5 cm; the strength of the product is 5.3 cN / dtex.

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Abstract

The application discloses a mesh monofilament and a manufacturing method thereof, wherein the mesh monofilament includes a fiber-forming polymer, the fiber-forming polymer is polypropylene, the melt index of polypropylene is 5-30g / 10min, and the thickness of the monofilament is 0.03-0.2mm, the monofilament is provided with a mesh, the length of the mesh is 1-5cm, the strength of the monofilament is 4.0-6.5cN / dtex, and the manufacturing method of the mesh monofilament is to send polypropylene into the screw to extrude Melting out of the machine; extruding the melted melt into a wide film through a die; liquid cooling the wide film, heat stretching, heat setting, opening, and winding to make a finished product. The obtained mesh monofilament has improved softness of the monofilament.

Description

technical field [0001] The present disclosure generally relates to the field of monofilaments, and in particular to a mesh monofilament and a manufacturing method thereof. Background technique [0002] A single filament with a small count produced by a single-hole spinneret in chemical fiber production. Its fineness is thicker than that of single filament in multifilament. The melted synthetic resin is condensed through the thin stream of raw liquid extruded from the capillary of the spinneret. Or use a multi-hole spinneret (for example, up to 50 holes) to spin, and then wind it into a monofilament bobbin through untwisted stretching and splitting. 200-300 tex (2-3 lbs) thick synthetic fiber monofilament can be used as fishing net line and rope. Slightly thinner monofilaments can be used as artificial bristles. Finer monofilaments are generally 1-1.3 tex (450-600 lbs), sometimes as thin as 0.6 tex (1000 lbs), and can be processed into elastic yarns for making elastic sto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D5/088D01D5/12D01D10/02
CPCD01D5/08D01D5/0885D01D5/12D01D10/02
Inventor 马海燕
Owner 马海燕
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