Production method of stock solution-colored blue nylon 6 fiber

A technology of dope coloring and production method, which is applied in the direction of fiber treatment, spinning solution degassing, feeding solution to spinneret, etc., which can solve the problems of short service life and meet the requirements of wool, uniform color and high color fastness. Effect

Inactive Publication Date: 2017-07-21
FUJIAN JINGFENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to provide a production method of dope-dyed blue nylon 6 fiber, to solve the problem of short service life of spinning components in the current production process of dope-dyed blue nylon 6 fiber, and to improve dope-dyed blue The continuous production of colored nylon 6 fiber enables the stable production of dope-colored blue nylon 6 fiber, and meets the quality requirements of less fuzz, higher breaking strength, uniform color and high color fastness.

Method used

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  • Production method of stock solution-colored blue nylon 6 fiber
  • Production method of stock solution-colored blue nylon 6 fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of production method of dope dyed blue nylon 6 fiber, comprises the following steps:

[0032] 2.0 parts of blue masterbatch and 98.0 parts of polyamide 6 semi-gloss chips are fully melted and then mixed and extruded. The blue masterbatch is prepared from the following raw materials in parts by weight: 30 parts of blue pigment powder, 10 parts of dispersant 60 parts and 60 parts of polyamide 6 slices, the melting temperature is 261 °C, the melt is accurately metered by the metering pump, enters the spinning assembly, and is spun out to form filaments. The diameter of the spinning cylindrical filter is 15 μm, and the spinning The initial pressure of the assembly is 150bar, the aspect ratio of the spinneret holes on the spinneret plate is 2.5, and then the monomer is sucked, cooled by side blowing, oiled in clusters, network intertwined, and then wound and formed to obtain the coloring of the dope Blue nylon 6 fiber;

[0033] The stock solution dyed blue nylon 6 fi...

Embodiment 2

[0036] A kind of production method of dope dyed blue nylon 6 fiber, comprises the following steps:

[0037] 3.6 parts of blue masterbatch and 96.4 parts of polyamide 6 semi-gloss chips are fully melted and then mixed and extruded. The blue masterbatch includes the following raw materials in parts by weight: 25 parts of blue pigment powder, 5 parts of dispersant 70 parts and 70 parts of polyamide 6 slices, the melting temperature is 260 ° C, the melt is accurately metered by the metering pump, enters the spinning assembly, and is spun out to form filaments. The diameter of the spinning cylindrical filter is 30 μm, and the spinning The initial pressure of the component is 165bar, the aspect ratio of the spinneret hole on the spinneret is 4, and then the monomer is sucked, cooled by side blowing, oiled in clusters, network intertwined, and then wound and formed to obtain the coloring of the dope Blue nylon 6 fiber;

[0038] The stock solution dyed blue nylon 6 fiber (85D / 24F) pr...

Embodiment 3

[0041] A kind of production method of dope dyed blue nylon 6 fiber, comprises the following steps:

[0042] 3.0 parts of blue masterbatch and 97.0 parts of polyamide 6 semi-gloss chips are fully melted and then mixed and extruded. The blue masterbatch is prepared from the following raw materials in parts by weight: 28 parts of blue pigment powder, 8 parts of dispersant 64 parts and 64 parts of polyamide 6 slices, the melting temperature is 261 °C, the melt is accurately metered by the metering pump, enters the spinning assembly, and is spun out to form filaments. The diameter of the spinning cylindrical filter is 15 μm, and the spinning The initial pressure of the assembly is 135bar, the aspect ratio of the spinneret holes on the spinneret plate is 3.5, and then through monomer suction, side blowing cooling, cluster oiling, network intertwining, and then winding to obtain the coloring of the dope Blue nylon 6 fiber, its cross-sectional view is shown in figure 1 ;

[0043] Th...

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Abstract

The invention provides a production method of stock solution-colored blue nylon 6 fiber. The production method comprises the following steps: melting blue masterbatch and polyamide 6 slices according to a weight ratio of (2-4):(96-98), performing mixed extrusion, metering a melt by using a metering pump, enabling the melt to enter a spinning assembly, spraying out to form tows after passing through the spinning assembly, performing single suction, performing side blowing cooling, bundling, oiling, intertwining into a net, and then winding shaping to obtain the stock solution-colored blue nylon 6 fiber. The method has the beneficial effects as follows: through mixed extrusion after the blue masterbatch and the polyamide 6 slices are melted according to a certain ratio, the problem that in the production process of the stock solution-colored blue nylon 6 fiber, the spinning assembly has a short using cycle is solved, the production continuity of the stock solution-colored blue nylon 6 fiber is improved, and stable production of the stock solution-colored blue nylon 6 fiber is ensured; quality requirements such as few broken filaments, high breaking strength, uniform color and luster, high color fastness and the like are met.

Description

technical field [0001] The invention relates to the technical field of chemical fibers, in particular to a production method of dope-dyed blue nylon 6 fibers. Background technique [0002] Dyeing and finishing is the most polluting link in the textile industry. In addition to consuming a large amount of water and chemicals, and discharging polluted wastewater with a high chemical oxygen demand, the combustion of coal or heavy oil used as fuel in the process will also produce carbon dioxide, the main gas that causes the greenhouse effect. [0003] One of the production methods of dope-colored blue nylon 6 fiber is to mix and melt the blue masterbatch and nylon 6 slices during the spinning process, and spin them into blue nylon 6 fibers after spinning. Because the blue nylon 6 fiber dyed by the stock solution is given blue color in the raw material section, the subsequent dyeing and finishing process is omitted, and the discharge of carbon dioxide and 80% of waste water is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/04D01D1/09D01D1/10
CPCD01D1/09D01D1/106D01F1/04D01F6/90
Inventor 刘冰灵金志学宁佐龙
Owner FUJIAN JINGFENG TECH
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