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Production method of fine-denier porous super-bright trilobal nylon 6 filament

A production method, trilobal technology, applied in filament/thread forming, clustering of newly extruded filaments, single-component polyamide artificial filaments, etc., to achieve broad market prospects and economic benefits, fabrics feel thick, Good air permeability

Inactive Publication Date: 2017-06-13
CHANGLE LIHENG POLYAMIDE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no report on the production technology of fine denier porous ultra-bright trilobal bright nylon 6 filament. For the production technology of special-shaped fiber: a "spinneret, special-shaped nylon 6 fiber and its preparation method" is disclosed in the prior art. , see the Chinese patent with the publication number: CN106120003A and the publication date: 2016-11-16, a spinneret, including a substrate and at least one spinneret microhole, and the spinneret microhole is arranged on the substrate , the cross-section of the spinneret microhole is a sawtooth structure, the sawtooth structure includes two sawtooth parts, the sawtooth parts include four semicircular arcs with the same radius, and the four semicircular arcs are arranged in sequence, And the two adjacent semicircular arcs are connected by a straight line, and the two serrations are connected to each other to form a symmetrical closed structure. The four semicircular arcs on one serration are connected to the four semicircular arcs on the other serration. Arc one-to-one correspondence setting

Method used

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  • Production method of fine-denier porous super-bright trilobal nylon 6 filament
  • Production method of fine-denier porous super-bright trilobal nylon 6 filament
  • Production method of fine-denier porous super-bright trilobal nylon 6 filament

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Effect test

Embodiment 1

[0031] The production method of trilobal glossy nylon 6 filament with specification 30D / 34F, monofilament fineness 0.89D, profile degree 20% is as follows, process flow reference figure 1 ;

[0032] Spinning-grade nylon 6 slices with a relative viscosity of 2.48±0.02 and a moisture content of ≤500ppm are put into the silo, heated and melted by the screw extruder and sent to the spinning box through the melt distribution pipe; the temperature range of each zone of the screw extruder 242, 247, 250, 252, 252°C;

[0033] The melt enters the spinning assembly in the spinning box, and is sprayed out through the spinneret hole of the three-lobed section. The inner diameter of the spinneret plate is 70mm, and the arrangement of the spinneret holes is "circular", and the hole specification is the same as "capillary hole". As shown in "Characteristics"; the spinning assembly is equipped with five layers of filter screens, a layer of non-woven fabric and a certain proportion of mixed co...

Embodiment 2

[0040] The production method of trilobal glossy nylon 6 filament with specification 40D / 34F, monofilament fineness 1.18D, and profile degree 30% is as follows, and the process flow refers to figure 1 ;

[0041] Spinning-grade nylon 6 slices with a relative viscosity of 2.48±0.02 and a moisture content of ≤500ppm are put into the silo, heated and melted by the screw extruder and sent to the spinning box through the melt distribution pipe; the temperature range of each zone of the screw extruder 242, 247, 250, 252, 252°C;

[0042] The melt enters the spinning assembly in the spinning box, and is sprayed out through the spinneret hole of the three-lobed section. The inner diameter of the spinneret plate is 70mm, and the arrangement of the spinneret holes is "circular", and the hole specification is the same as "capillary hole". As shown in "Characteristics"; the assembly is equipped with five layers of filter screens, a layer of non-woven fabric and a certain proportion of mixed...

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Abstract

The invention provides a production method of fine-denier porous super-bright trilobal nylon 6 filament; spinning-level nylon 6 having relative viscosity of 2.48+ / -0.02 and water content of < / =500 ppm is sliced, slices are charged into a stock bin, a screw extruder serves for heating and melting, and melt is fed into a spinning box through a melt distribution pipe; the melt enters a spinning component from the spinning box and is sprayed via trilobal-section spinneret orifices which hare arranged in 'circular shape'; trilobal-section as-spun fibers are cooled by side blowing, the cooled fibers are oiled via an oil nozzle, and the oiled fibers are fed into a spinning passage; tows are passed through a cold roller, a hot roller, a laying unit and a tension roller for the purpose of one-step winding. The fine-denier porous super-bright trilobal nylon 6 filament has profile degree of 20-30% and denier per filament of 0.8-1.2 D, and is fully, highly breathable and super-bright.

Description

technical field [0001] The invention relates to the technical field of synthetic fibers, in particular to a method for producing fine-denier porous ultra-bright trilobal nylon 6 filaments. Background technique [0002] In recent years, the competition in the chemical fiber industry at home and abroad has become increasingly fierce, and nylon fibers with ordinary circular cross-sections can no longer adapt to market changes and people's requirements. In response to market demand and competition at home and abroad, many companies have continuously developed new nylon varieties, and various fibers with special-shaped cross-sections have emerged as the times require. [0003] At present, there is no report on the production technology of fine denier porous super bright trilobal bright nylon 6 filament. The glossy nylon 6 filaments with trefoil cross-section are mainly found in coarse denier yarns, and the cross-sections of fine denier porous glossy nylon 6 filaments are all tri...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/253D01D7/00D01F6/60
CPCD01D5/253D01D7/00D01F6/60
Inventor 毛行功
Owner CHANGLE LIHENG POLYAMIDE TECH
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