Preparation process of fine-denier high-strength polyester fiber

A high-strength fiber, preparation technology, applied in fiber processing, spinneret assembly, single-component polyester rayon, etc. Filament and broken ends, stable production results

Inactive Publication Date: 2019-01-11
CHANGSHU POLYESTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is to provide a preparation process of polyester fine denier high-strength fiber, which can ensure the stable spinning and solve the problems of easy occurrence of wool and broken ends of the fiber. The product is stable in production and has good softness. The processed polyester fine denier high-strength fiber has achieved the effect of multifilament fineness, which can replace high-value products such as real silk

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of preparation technology of polyester fine denier high-strength fiber, described polyester superfine fiber is 30D polyester fine denier high-strength fiber, and its preparation process comprises the following steps:

[0024] (100) Melting: Polyester chips are used as raw materials and melted into a spinning dope by a screw; the temperature at the time of melting is 272°C, which can effectively improve the fluidity and spinnability of the spinning dope;

[0025] (200) Metering and spinning: the spinning stock solution is sprayed out and spun from a 12-hole spinneret after the flow rate is adjusted by a metering pump to obtain fiber tow; a slow cooling and heating device is installed under the spinneret, and the The temperature of the slow cooling heating device is 8°C-12°C higher than the surface temperature of the spinneret; in this embodiment, the temperature of the spinneret surface is controlled at 293°C, and the temperature of the slow cooling heating device ...

Embodiment 2

[0032] A kind of preparation technology of polyester fine denier high-strength fiber, described polyester superfine fiber is 30D polyester fine denier high-strength fiber, and its preparation process comprises the following steps:

[0033] (100) Melting: Polyester chips are used as raw materials and melted into spinning dope by screw; the temperature at the time of melting is 273°C, which can effectively improve the fluidity and spinnability of spinning dope;

[0034] (200) Metering and spinning: the spinning stock solution is sprayed out and spun from a 12-hole spinneret after the flow rate is adjusted by a metering pump to obtain fiber tow; a slow cooling and heating device is installed under the spinneret, and the The temperature of the slow cooling heating device is 8°C-12°C higher than the surface temperature of the spinneret; in this embodiment, the temperature of the spinneret surface is controlled at 294°C, and the temperature of the slow cooling heating device The tem...

Embodiment 3

[0041] A kind of preparation technology of polyester fine denier high-strength fiber, described polyester superfine fiber is 30D polyester fine denier high-strength fiber, and its preparation process comprises the following steps:

[0042] (100) Melting: Polyester chips are used as raw materials and melted into spinning dope by screw; the temperature at the time of melting is 275°C, which can effectively improve the fluidity and spinnability of spinning dope;

[0043] (200) Metering and spinning: the spinning stock solution is sprayed out and spun from a 12-hole spinneret after the flow rate is adjusted by a metering pump to obtain fiber tow; a slow cooling and heating device is installed under the spinneret, and the The temperature of the slow cooling heating device is 8°C-12°C higher than the surface temperature of the spinneret; in this embodiment, the temperature of the spinneret surface is controlled at 295°C, and the temperature of the slow cooling heating device The tem...

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Abstract

The invention discloses a preparation process of a fine-denier high-strength polyester fiber, which includes the following steps: melting; metering and spinning; cooling and oiling; pre-interlacing; stretching and finalizing; main interlacing; and winding into a finished product. A 12-hole spinneret is used for spinning. A slow-cooling heating device is installed below the spinneret, and the temperature of the slow-cooling heating device is 8-12 DEG C higher than the surface temperature of the spinneret. Hot air equipment is used for cooling by means of circular blowing. Double oil nozzles areused for oiling, and the oiling rate is 0.85-0.95. Three pairs of rollers are used for draw-forming, and the drawing ratio is 1.75-1.85. The winding speed is 2450-2500m / min. Through the scheme, a stable spinning process is ensured, and the problem that fibers are prone to wool and broken ends is solved. Therefore, the production of the product is stable, the product is of high softness, and the fine-denier high-strength polyester fiber obtained achieves the effect of fine multifilament and can replace high-value products such as silk.

Description

technical field [0001] The invention relates to the field of polyester preparation, in particular to a preparation process of polyester fine denier high-strength fiber. Background technique [0002] With the rapid development of the textile industry, more patterns of fabrics emerge in an endless stream, and corresponding types of fiber raw materials are derived thereupon. Due to the fineness of the single filament, the stiffness of the polyester fine denier fiber is reduced, and the resulting fabric feels extremely soft. At the same time, it can also increase the layered structure of the filament, increase the specific surface area and capillary effect, and the internal reflection light of the fiber is finely distributed on the surface. , so that it has a silky elegant luster, and has good moisture absorption and moisture dissipation. Microfiber has many advantages such as softness, anti-pilling, easy care, good hair uprightness, high density and breathability, etc., which ...

Claims

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Application Information

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IPC IPC(8): D01D5/084D01D5/092D01D5/16D01D4/02D01F6/62
CPCD01D4/02D01D5/084D01D5/092D01D5/16D01F6/62
Inventor 顾洪达
Owner CHANGSHU POLYESTER
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