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A heavy denier polyester industrial yarn and its processing device

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

Active Publication Date: 2017-07-28
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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  • A heavy denier polyester industrial yarn and its processing device
  • A heavy denier polyester industrial yarn and its processing device
  • A heavy denier polyester industrial yarn and its processing device

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 invention relates to a heavy-denier polyester industrial yarn and a processing device thereof, belonging to the technical field of polyester processing. Thicken the low-viscosity polyester chips through a viscosifying reactor, then send the high-viscosity polyester chips into the screw extruder to melt and extrude to form a melt, which is metered, filtered by the spinning assembly and passed through the spinneret After spraying out, it is cooled by side blowing in parallel and clustered. After two times of oiling at the exit of the spinning tunnel, two-stage drafting and one-stage relaxation heat setting are adopted, and the mechanical speed is 7000m / min; the fibers after drawing and heat setting are passed through After the network is processed, it is wound into shape, and the twin winding machine is used for ply winding. The process method of the present invention is multi-head spinning and stretching, combined with heavy denier winding, and the present invention is used to prepare heavy denier polyester industrial yarn, which has the advantages of good product quality stability, high production efficiency, energy saving and the like.

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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Patent Type & Authority Patents(China)
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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