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Special-shaped polyamide 6 filament and preparation method thereof

A nylon and special-shaped technology, which is applied in the field of special-shaped nylon 6 filaments and its preparation, can solve the problems of moisture absorption and perspiration, poor bulkiness, poor luster of nylon 6 filaments, and insufficient color, and achieve a large reflective effect and enhance capillary effect of effect

Active Publication Date: 2020-03-31
FUJIAN JINJIANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the commonly used special-shaped nylon 6 filaments have improved gloss and moisture absorption to varying degrees compared with circular cross-sections, but nylon 6 filaments with triangular and trilobal cross-sections have poor moisture absorption and perspiration and bulkiness. , Nylon 6 filament with I-shaped section has poor luster, and the color after dyeing is not bright enough

Method used

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  • Special-shaped polyamide 6 filament and preparation method thereof
  • Special-shaped polyamide 6 filament and preparation method thereof

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preparation example Construction

[0019] Please refer to Figure 1 to Figure 2 Shown, the preparation method of a kind of special-shaped nylon 6 filament of the present invention, comprises the following steps:

[0020] Step 1, mixing and melting nylon 6 dry slices with a relative viscosity of 2.30-2.50 and color masterbatch to obtain a nylon 6 melt;

[0021] Step 2, extruding the nylon 6 melt obtained in step 1 through the spinneret micro-holes on the spinneret to obtain nylon 6 filament tow;

[0022] Step 3. The nylon 6 filament tow obtained in step 2 is sequentially subjected to monomer suction, side blowing cooling, cluster oiling, stretching and setting, and network interlacing, and then winding and forming to obtain special-shaped nylon 6 filament;

[0023] The spinneret includes a substrate and at least one spinneret microhole, the spinneret microhole is arranged on the substrate, the cross section of the spinneret microhole is trilobal, and the two adjacent blades The included angle is 120°, and the ...

Embodiment 1

[0039] A preparation method of special-shaped nylon 6 filaments, specifically comprising the following steps:

[0040] Step 1, mixing and melting nylon 6 dry slices with a relative viscosity of 2.30-2.50 and black masterbatch to obtain a nylon 6 black melt;

[0041] Step 2, extruding the nylon 6 melt obtained in step 1 through the spinneret micro-holes on the spinneret to obtain nylon 6 black filament tow;

[0042] Step 3. The nylon 6 filament tow obtained in step 2 is sequentially subjected to monomer suction, side blowing cooling, cluster oiling, stretching and setting, and network interlacing, and then winding and forming to obtain special-shaped black nylon 6 filament;

[0043] The spinneret includes a substrate and at least one spinneret microhole, the spinneret microhole is arranged on the substrate, the cross section of the spinneret microhole is trilobal, and the two adjacent blades The included angle is 120°, and the shape and size of each blade are the same; the bla...

Embodiment 2

[0047] A preparation method of special-shaped nylon 6 filaments, specifically comprising the following steps:

[0048] Step 1, mixing, melting, kneading, compressing and extruding nylon 6 dry slices with a relative viscosity of 2.30-2.50 and fluorescent white masterbatch to obtain a nylon 6 fluorescent white melt;

[0049] Step 2, extruding the nylon 6 melt obtained in step 1 through the spinneret micro-holes on the spinneret to obtain nylon 6 fluorescent white filament tow;

[0050] Step 3. The nylon 6 filament tow obtained in step 2 is sequentially subjected to monomer suction, side blowing cooling, cluster oiling, stretching and shaping, and network interlacing, and then winding to obtain special-shaped fluorescent white nylon 6 filament;

[0051] The spinneret includes a substrate and at least one spinneret microhole, the spinneret microhole is arranged on the substrate, the cross section of the spinneret microhole is trilobal, and the two adjacent blades The included ang...

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Abstract

The invention discloses a special-shaped polyamide 6 filament and a preparation method thereof, and relates to a chemical fiber technology. The preparation method is characterized in that the special-shaped polyamide 6 filament is prepared by improving a spinneret plate structure and matching with a method for coloring a polyamide 6 filament with a stock solution; a spinneret plate comprises a base plate and at least one spinneret micropore; the spinneret micropore is formed in the base plate; the cross section of the spinneret micropore is trilobal; an included angle between two adjacent blades is 120 degrees; the shape and the size of each blade are the same; the blade is of a cross-shaped structure; and the end part of the cross-shaped structure is in a circular arc shape. According tothe special-shaped polyamide 6 filament and the preparation method thereof provided by the invention, the shape of the spinneret plate is changed, and the spinning process of the polyamide 6 filamentcolored by the stock solution is optimized, so that the specific surface area of fibers and the cohesive property between monofilaments are increased to lock pigment or dye powder in the polyamide 6 filament colored by the stock solution, and the fibers can present full color and luster, are high in fastness to washing, and also have moisture absorption and sweat releasing functions.

Description

technical field [0001] The invention relates to chemical fiber technology, in particular to a special-shaped nylon 6 filament and a preparation method thereof. Background technique [0002] Nylon is widely used in the garment industry due to its excellent physical properties. In recent years, the research on nylon 6 filaments, especially the research on differentiated nylon 6 filaments that can meet people's needs, has developed rapidly. [0003] The cross-section of conventional nylon 6 filament is circular, and the special-shaped nylon 6 filament is nylon with non-circular cross-section. The research direction of special-shaped nylon 6 filaments is to increase the specific surface area of ​​nylon 6 filaments, that is, through the design of special-shaped cross-sections, grooves are introduced into the outer contour of the surface of nylon 6 filaments to enhance the capillary effect. The design of different cross-sectional shapes can make nylon 6 6. The luster, feel, hygr...

Claims

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Application Information

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IPC IPC(8): D01F6/90D01F1/04D01F1/06D01D5/253D01D13/00
CPCD01F6/90D01F1/04D01F1/06D01D5/253D01D13/00
Inventor 刘冰灵韦飞金志学杨胜安
Owner FUJIAN JINJIANG TECH
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