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Manufacture method of ultrathin single-fiber polyamide drawn textured yarn (6DTY)

A fine single-fiber nylon and manufacturing method technology, applied in the field of spinning, can solve the problems of limited production capacity and application prospects, unstable product quality, prone to end breakage and wool, etc., to reduce end breakage and DTY wool The effect of silk, ultra-fine single fiber with small fineness and good DTY physical index

Active Publication Date: 2015-03-11
ZHEJIANG YAXING FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the very small single fiber fineness of ultra-fine fibers, problems such as broken ends and wool are prone to occur during the production process of spinning and texturing, resulting in unstable production quality and low yield, which makes the production capacity and application limited prospects
[0005] Therefore, in view of the above-mentioned defects existing in the current prior art, it is necessary to carry out research to provide a solution to solve the defects existing in the prior art, and to avoid the broken ends and wool filaments produced in the production process of microfibers. And other problems, resulting in unstable production quality and low yield, which limits production capacity and application prospects

Method used

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  • Manufacture method of ultrathin single-fiber polyamide drawn textured yarn (6DTY)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A kind of manufacture method of superfine single fiber nylon 6DTY, comprises the following steps:

[0048] a) Melt high-speed spinning: Nylon 6 chips are melted and high-speed spinning, wherein the screw pressure is 110kg / cm 2 , the screw speed is 30r / min, the melt spinning temperature is 255°C, the spinneret holes used are circular, the diameter is 0.15mm, and the aspect ratio is 3.0;

[0049] b) Side blowing cooling: wind temperature 17°C, humidity 90%, wind speed 0.3m / s;

[0050] c) Oiling and clustering: the fibers cooled by side blowing are oiled and clustered through the oil mist nozzle. The oil used is 6% nylon oil pure water emulsion, and the oiling rate is 0.6%;

[0051] d) Winding: the oiled tow passes through the pre-netting device, the godet, and the main network device, and starts winding and spinning at a spinning speed of 4000m / min to obtain POY filaments;

[0052] e) Guide wire heating: the POY filament passes through the guide wire, wire feeding rolle...

Embodiment 2

[0057] A kind of manufacture method of superfine single fiber nylon 6DTY, comprises the following steps:

[0058] a) Melt high-speed spinning: Nylon 6 slices are melted and high-speed spinning, wherein the screw pressure is 115kg / cm 2 , the screw speed is 45r / min, the melt spinning temperature is 263°C, the spinneret holes used are circular, the diameter is 0.25mm, and the aspect ratio is 2.5;

[0059] b) Side blowing cooling: wind temperature 18°C, humidity 95%, wind speed 0.4m / s;

[0060] c) Oiling and clustering: the fibers cooled by side blowing are oiled and clustered through the oil mist nozzle. The oil used is 8% nylon oil pure water emulsion, and the oiling rate is 0.7%;

[0061] d) Winding: the oiled tow passes through the pre-netting device, the godet, and the main network device, and starts winding and spinning at a spinning speed of 4100m / min to obtain POY filaments;

[0062] e) Guide wire heating: the POY filament passes through the guide wire, wire feeding roll...

Embodiment 3

[0067] A kind of manufacture method of superfine single fiber nylon 6DTY is characterized in that, comprises the following steps:

[0068] a) Melt high-speed spinning: Nylon 6 chips are melted and high-speed spun, wherein the screw pressure is 112kg / cm2, the screw speed is 40r / min, the melt spinning temperature is 260°C, and the spinneret holes used are circular, with a diameter of 0.20mm, aspect ratio 2.5;

[0069] b) Side blowing cooling: wind temperature 17°C, humidity 92%, wind speed 0.35m / s;

[0070] c) Oiling and clustering: the fibers cooled by side blowing are oiled and clustered through the oil mist nozzle. The oil used is 7% nylon oil pure water emulsion, and the oiling rate is 0.65%;

[0071] d) Winding: the oiled tow passes through the pre-netting device, the godet, and the main network device, and starts winding and spinning at a spinning speed of 4050m / min to obtain POY filaments;

[0072] e) Guide wire heating: the POY filament passes through the guide wire, w...

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Abstract

The embodiment of the invention discloses a manufacture method of an ultrathin single-fiber polyamide drawn textured yarn (6DTY), which comprises the following steps of: a, melting for high-speed spinning; b, laterally blowing air for cooling; c, oiling and bundling; d, winding; e, heating a conducting wire; f, cooling and false-twisting; and g, drafting to obtain the ultrathin single-fiber polyamide drawn textured yarn (6DTY) with yarn density of 0.40-0.55dtex. According to the invention, the method for manufacturing the ultrathin single-fiber polyamide drawn textured yarn (6DTY) by adopting a direct spinning method is formed through regulation and improvement of parameters such as a spinning assembly, spinning temperature, spinning speed, oiling, heat box temperature, D / Y ration, false twisting disk material and combination, roller speed ratio and the like, and thus the problem of end breaking, broken filaments and the like are solved, the production quality of the ultrathin single-fiber polyamide drawn textured yarn (6DTY) is stable, and the yield of the ultrathin single-fiber polyamide drawn textured yarn (6DTY) is increased.

Description

technical field [0001] The invention belongs to the technical field of spinning, and in particular relates to a method for manufacturing ultrafine single-fiber nylon 6DTY. Background technique [0002] Microfiber has extremely small linear density and high specific surface area, which makes the fabric have high coverage, soft hand feeling and comfortable wearing. As the fiber fineness decreases, the proportion of scattered light reflected by the fiber surface increases. This will make the apparent tone of the fabric darker and softer, and can be made into imitation silk, imitation peach skin, imitation suede, imitation wool and high-density products. At the same time, it can be used to make artificial leather, clean cloth, advanced air filter, dust mask, ski and water ski sportswear, swimsuit and other moisture-permeable and waterproof fabrics. Therefore, superfine fiber has become a hot textile raw material for various textile manufacturers at home and abroad to develop hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/088D01D1/04D01D1/10D01D4/00D01D5/096D02G1/02D02J1/22D02J13/00D01F6/90
Inventor 刘文华陈宜生李秀群张岚岚
Owner ZHEJIANG YAXING FIBER
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