Fine denier nylon 66 full-draft fiber spinning production process

A production process and full drafting technology, which is applied in the field of spinning production process of fine denier nylon 66 fully drafted fiber, can solve problems such as failure to meet user requirements, and achieve a high degree of automation, mature technology and excellent product quality. Effect

Active Publication Date: 2010-10-27
BEIJING SANLIAN HOPE TEXTILE & CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic nylon 6 products and a small amount of ny

Method used

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  • Fine denier nylon 66 full-draft fiber spinning production process
  • Fine denier nylon 66 full-draft fiber spinning production process
  • Fine denier nylon 66 full-draft fiber spinning production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The fine denier nylon 66 full-drawn fiber spinning process is further explained in conjunction with the process flow chart.

[0024] Spinning equipment and supporting devices, including chip conveying and drying device 1, screw extruder 2, measuring head 3, melt distribution pipe 4, spinning box 5, spinning metering pump 6, spinning assembly 7, side blower Device 8, oiling device 9, winding machine 10 and biphenyl steam generator 11.

[0025] Technological process: 1005kg (calculated as 1000kg product) of nylon 66 slices dried by drying tower 1 enters screw extruder 2, and is extruded and melted to become spinnable nylon 66 melt. , divided into five temperature control zones, the heating temperature of the first zone is 290°C, the heating temperature of the second zone is 295°C, the heating temperature of the third zone is 290°C, the heating temperature of the fourth zone is 288°C, the heating temperature of the fifth zone is 288°C, and it comes out of the screw extrude...

Embodiment 2

[0028] 1) 1000kg of dry nylon 66 slices (calculated as 1000kg product) are heated, extruded and melted into a melt in a screw extruder with a rotation speed of 80 rpm and a heating temperature of 265°C. The screw extruder is divided into Five temperature control zones, the heating temperature of the first zone is 293°C, the heating temperature of the second zone is 300°C, the heating temperature of the third zone is 293°C, the heating temperature of the fourth zone is 290°C, the heating temperature of the fifth zone is 290°C, and the nylon produced by the screw extruder 66 The melt temperature is 290°C,

[0029] 2) Nylon 66 melt is insulated by a gas-phase heat medium in the melt pipeline, delivered to the spinning box by a pipeline of equal length outside the box and metered by a spinning metering pump. The supply of the metering pump is 10 g / min, and its rotation Count 30 revolutions per minute, and then distribute the nylon 66 melt evenly to the spinning assembly through th...

Embodiment 3

[0034] 1) 1015kg of dried nylon 66 slices (calculated as 1000kg product) are heated, extruded, and melted into a melt in a screw extruder with a rotation speed of 30 rpm and a heating temperature of 245°C. The screw extruder is divided into Five temperature control zones, the heating temperature of the first zone is 286°C, the heating temperature of the second zone is 290°C, the heating temperature of the third zone is 286°C, the heating temperature of the fourth zone is 285°C, the heating temperature of the fifth zone is 285°C, and the nylon produced by the screw extruder The temperature of the 66 melt is 285°C. 2) The nylon 66 melt is kept warm in the melt pipeline by a gas-phase heat medium, and is delivered to the spinning box by a pipeline of equal length outside the box. It is metered by the spinning metering pump, and the metering pump supplies The amount is 1 g / min, and the number of revolutions is 10 revolutions / min, and then the nylon 66 melt is evenly distributed to ...

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Abstract

The invention relates to a fine denier nylon 66 full-draft fiber spinning production process, which is characterized by comprising the following steps of: 1) slicing dry nylon 66, heating, extruding and melting into a melt; 2) preserving heat of the melt, and uniformly distributing the melt into a spinning assembly; 3) making the melt in the spinning assembly enter a sand cup, and filling metal sand in the sand cup; 4) spraying from spinneret plates on the bottom of the spinning assembly under high pressure to form fiber yarns; and 5) performing bundling and oiling on cooled and formed filament bundles, passing through a spinning channel, passing through wound pretangle and tangle, performing high-speed and high-rate draft, and winding into spinning cakes on a winder to form fiber filament bundles.

Description

technical field [0001] The invention belongs to the preparation and production process of nylon 66 fiber, in particular to a spinning production process of fine-denier nylon 66 fully drawn fiber. Background technique [0002] Nylon fiber is the second largest variety of synthetic fiber in the world, and the third largest variety of synthetic fiber in my country. With the improvement of people's living standards, people's demand for textile raw materials is becoming more and more differentiated, high-end, and personalized. At present, domestic nylon 6 products and a small amount of conventional nylon 66 products cannot meet the requirements of users. The invention provides a production process for producing fine-denier nylon 66 fully drawn fibers with deniers lower than 22 decitex. Contents of the invention [0003] The object of the present invention is to provide a kind of fine-denier nylon 66 fully drawn fiber production process. [0004] The present invention is reali...

Claims

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Application Information

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IPC IPC(8): D01D5/08D01D5/088D01D5/096D01D1/06D01D5/12D01D13/00
Inventor 刘迪李德和于佩霖
Owner BEIJING SANLIAN HOPE TEXTILE & CHEM TECH
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