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Heavy denier polyester industrial yarn and processing apparatus thereof

A technology of polyester industrial yarn and processing device, which is applied in the field of polyester processing, can solve the problems of polyester industrial yarn production, unstable quality indicators, inability to process heavy denier, etc., and achieves stable quality, good product quality stability, and high production efficiency. Effect

Active Publication Date: 2015-09-16
浙江金汇特材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional 4-6-head spinning equipment cannot produce heavy-denier polyester industrial yarn due to insufficient number of spinning heads, direct spinning and stretching, low machine efficiency, and unstable quality indicators. , the method of producing heavy-denier polyester industrial yarn by spinning with multiple heads (12 heads) has not yet appeared

Method used

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  • Heavy denier polyester industrial yarn and processing apparatus thereof
  • Heavy denier polyester industrial yarn and processing apparatus thereof
  • Heavy denier polyester industrial yarn and processing apparatus thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: 12 heads spinning 5000D high-strength polyester industrial yarn

[0038] (1) Solid phase viscosity increase:

[0039] Bright polyester chips with an intrinsic viscosity of 0.64-0.69dl / g are used, transported to the crystallizer, and after being crystallized by hot air at 180°C, the chips are introduced into the solid-phase polymerization tower through a rotary valve, and passed through a temperature of 200-220°C And after 30-38 hours, a high-viscosity polyester chip with an intrinsic viscosity of 0.95-1.05 dl / g was obtained.

[0040] (2) Multi-head spinning:

[0041] combine figure 1 and figure 2, the high-viscosity polyester chips after viscosification are transported to the pre-spinning silo 1, melted by the spinning screw of the screw extruder 2, each spinning position uses 12 spinning heads, and the temperature of the spinning box 3 290~300℃, the melt is metered and filtered by the metering pump, and then sprayed out from the spinneret. After passing...

Embodiment 2

[0050] Example 2: 12 heads spinning 6000D heavy denier polyester industrial yarn

[0051] The setting and working principle of this embodiment are the same as that of Embodiment 1, the difference is that:

[0052] (1) Solid phase viscosity increase:

[0053] Bright polyester chips with an intrinsic viscosity of 0.64-0.69dl / g are used, transported to the crystallizer, and after being crystallized by hot air at 180°C, the chips are introduced into the solid-phase polymerization tower through a rotary valve, and passed through a temperature of 200-220°C And after 30-38 hours, a high-viscosity polyester chip with an intrinsic viscosity of 0.90-1.10 dl / g was obtained.

[0054] (2) Multi-head spinning:

[0055] The melt after solid-phase viscosity increase is transported to each spinning screw, the heating temperature is 285-298°C, the temperature of the spinning box is 290-300°C, each spinning position contains a parallel spinning box, each box The body is equipped with 4 planet...

Embodiment 3

[0060] Example 3: 12 heads spinning 4500D heavy denier polyester industrial yarn

[0061] The setting and working principle of this embodiment are the same as that of Embodiment 1, the difference is that:

[0062] (1) Solid phase viscosity increase:

[0063] Bright polyester chips with an intrinsic viscosity of 0.64-0.69dl / g are used, transported to the crystallizer, and after being crystallized by hot air at 180°C, the chips are introduced into the solid-phase polymerization tower through a rotary valve, and passed through a temperature of 200-220°C And after 30-38 hours, a high-viscosity polyester chip with an intrinsic viscosity of 0.90-1.10 dl / g was obtained.

[0064] (2) Multi-head spinning:

[0065] The melt after solid-phase viscosity increase is transported to each spinning screw, the heating temperature is 285-298°C, the temperature of the spinning box is 290-300°C, each spinning position contains a parallel spinning box, each box The body is equipped with 4 planet...

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Abstract

The present invention relates to a heavy denier polyester industrial yarn and a processing apparatus, and belongs to the technical field of polyester processing. According to the present invention, low viscosity polyester slices are subjected to tackify through a tackifying reactor, high viscosity polyester slices are conveyed into a screw extruder to carry out melt extrusion so as to form a melt, the melt is metered, filtered through a spinning assembly, is discharged through a spinneret plate, is subjected to side air blowing parallel cooling, and then is subjected to bundle collecting, two oiling are performed at the spinning channel outlet, and two-stage drafting one-stage relaxation heat shaping is used, wherein the mechanical speed is 7000 m / min; the fibers after the drafting heat shaping are subjected to winding molding after the network treatment, wherein the winding is adopting a twin-type winding machine to perform twisted winding; and the process method of the present invention adopts the combination of the multi-spinneret spinning drawing and the heavy denier winding, and with the application of the apparatus of the present invention to produce the heavy denier polyester industrial yarn, the advantages of good product quality stability, high production efficiency, energy saving and the like are provided.

Description

technical field [0001] The invention relates to a heavy-denier polyester industrial yarn and a processing device thereof, belonging to the technical field of polyester processing. Background technique [0002] The solid-phase polycondensation melt-spinning process route is generally used at home and abroad to produce polyester industrial yarns, that is, the low-viscosity polyester melt obtained by melt polycondensation is pelletized, dried, crystallized, and solid-phase polycondensed to obtain an intrinsic viscosity of 0.90-1.10dl / g of high-viscosity polyester chips, which are melt-spun with a screw extruder after drying. [0003] Heavy denier polyester industrial yarn refers to polyester industrial yarn with a denier of more than 3000d. Its processing requirements are large melt flow, harsh melting process, uniform and stable melt quality, uniform fiber processing heat history, fine denier spinning-stretching, Coiled and wound. Conventional 4-6-head spinning equipment ca...

Claims

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Application Information

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IPC IPC(8): D01F6/62D01D1/00D01D10/02D01D7/00D01D13/00D01D13/02D01D5/088D01D5/096D01D4/02D01D4/00D01D11/04
Inventor 王建辉高琳刘宇明马建平杨宇龙
Owner 浙江金汇特材料有限公司
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