Island type polyamide 6 fibre and preparing method thereof

A polyamide, island-in-the-sea technology, used in fiber processing, filament/thread forming, conjugated synthetic polymer rayon, etc., can solve problems such as light resistance, poor heat resistance, gray fabric color, and aggravating environmental pollution. , to achieve the effect of overcoming gray color, bright color and lower production cost

Inactive Publication Date: 2008-07-09
张家港保税区长江塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor light resistance and heat resistance of polyamide 6 fiber, in the dyeing of polyamide 6 fiber, the traditional dyeing method will make the color of the fabric gray. Nowadays, the dyeing

Method used

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  • Island type polyamide 6 fibre and preparing method thereof
  • Island type polyamide 6 fibre and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] As shown in Figure 2, 40 parts (weight) of fiber-grade nylon 6 (polyamide 6) slices are sent into the warehouse 1 protected by low-temperature dry air as the first raw material A, so that the moisture content of nylon 6 < 200PPM, and then sent into the first screw extruder 3, and melted and extruded by the first screw extruder 3 to become a spinnable polyamide 6 melt. The melt extrusion process of the first screw extruder 3 is provided with 3 to 5 sections In the heating zone, the heating temperature of each zone is set between 250°C and 280°C (such as 250°C, 260°C, 270°C), and then the polyamide 6 melt is sent to the spinning box 5, and further evenly distributed to the island In the type composite spinning component, it is used as the sea component of the sea-island type polyamide 6 fiber;

[0017] At the same time, send 60 parts (weight) of fiber-grade polyester chips into the drying tower 2 as the second raw material B for drying, and then make fiber-grade polyester...

Embodiment 2

[0020] As shown in Figure 2, 60 parts (weight) of fiber-grade nylon 6 (polyamide 6) slices are sent into the warehouse 1 protected by low-temperature dry air as the first raw material A, so that the moisture content of nylon 6 < 200PPM, and then sent into the first screw extruder 3, and melted and extruded by the first screw extruder 3 to become a spinnable polyamide 6 melt. The melt extrusion process of the first screw extruder 3 is provided with 3 to 5 sections In the heating zone, the heating temperature of each zone is set between 250°C and 280°C (such as 250°C, 260°C, 270°C), and then the polyamide 6 melt is sent to the spinning box 5, and further evenly distributed to the island In the type composite spinning component, it is used as the sea component of the sea-island type polyamide 6 fiber;

[0021] At the same time, send 40 parts (weight) of fiber-grade polyester chips into the drying tower 2 as the second raw material B for drying, then make fiber-grade polyester dry...

Embodiment 3

[0024] As shown in Figure 2, 80 parts (weight) of fiber-grade nylon 6 (polyamide 6) chips are sent into the silo 1 protected by low-temperature dry air as the first raw material A, so that the moisture content of nylon 6 < 200PPM, and then sent into the first screw extruder 3, and melted and extruded by the first screw extruder 3 to become a spinnable polyamide 6 melt. The melt extrusion process of the first screw extruder 3 is provided with 3 to 5 sections In the heating zone, the heating temperature of each zone is set between 250°C and 280°C (such as 250°C, 260°C, 270°C), and then the polyamide 6 melt is sent to the spinning box 5, and further evenly distributed to the island In the type composite spinning component, it is used as the sea component of the sea-island type polyamide 6 fiber;

[0025] At the same time, send 20 parts (weight) of fiber-grade polyester chips into the drying tower 2 as the second raw material B for drying, then make fiber-grade polyester dry chips...

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Abstract

The invention discloses sea-island polyamide 6 fiber whose cost is low, normal dyeing is color and luster and physical-mechanical properties is excellent and process for preparation. Sea-island polyamide 6 fiber comprises sea components which is formed by fiber grade polyamide 6 slices and island components which is formed by at least four fiber bundles, fiber bundles comprise fiber grade polyester slice, and polyamide 6 which is in sea component accounts for 40-80% of the total weight. The invention prepares sea-island polyamide 6 fiber through a pair of screw extruder and sea-island composite spinning assembly, overcomes the shortcoming that color is ashy which is caused by fracture of inner chemical bond when the traditional polyamide 6 fiber is dyeing, and polyamide 6 fiber is led to color and luster when in dyeing. The manufacturing cost is greatly reduced than single nylon through analyzing according to the price difference of polyester and polyamide 6 fiber, while physical-mechanical properties are basically unchanged, therefore the shortcoming of common chemical fibers is fundamentally overcome, and the process for preparation is simple and easy to operate.

Description

technical field [0001] The invention relates to a sea-island type polyamide 6 fiber and a preparation method thereof. Background technique [0002] Polyamide 6 fiber is the earliest synthetic fiber variety for industrial production, and belongs to aliphatic polyamide fiber. At present, polyamide 6 fiber is mainly used to make strong yarn for the production of socks, underwear, sweatshirts and so on. Due to the poor light resistance and heat resistance of polyamide 6 fiber, in the dyeing of polyamide 6 fiber, the traditional dyeing method will make the color of the fabric gray. Nowadays, the dyeing of polyamide 6 fiber fabrics on the market mostly uses additives to make it have Bright color, the shortcoming of above-mentioned method is cost height, has increased the weight of environmental pollution. Contents of the invention [0003] A technical problem to be solved by the present invention is to provide an island-in-the-sea polyamide 6 fiber with low cost, bright color ...

Claims

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Application Information

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IPC IPC(8): D01F8/12D01F8/14D01D5/28
Inventor 张辉陆燕祥
Owner 张家港保税区长江塑化有限公司
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