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Complete-extinction thin and light meshy polyamide fiber 6 draw textured yarn (DTY) manufacture method

A manufacturing method and full extinction technology, applied in the field of spinning, can solve the problems of reduced full package rate, increased yarn breakage rate, and many floating yarns, and achieve the effect of improving the service life

Active Publication Date: 2013-04-17
浙江亚特新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 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 avoid causing many floating threads and broken threads of the fine-denier light network nylon 6DTY in full extinction. The head rate increases, the full package rate decreases, the post-processed yarn has uneven bulkiness, poor network uniformity, many stiff spots, and low strength

Method used

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  • Complete-extinction thin and light meshy polyamide fiber 6 draw textured yarn (DTY) manufacture method

Examples

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Embodiment 1

[0040] A kind of manufacturing method of full-dull fine-denier light network nylon 6DTY comprises the following steps:

[0041] a) Melt high-speed spinning: Full-dull nylon 6 slices are melted and high-speed spinning, wherein the screw pressure is 115kg / cm 2 , the screw speed is 30r / min, and the melt spinning temperature is 252°C; the spinneret hole of the spinneret used is circular, with a diameter of 0.30mm and an aspect ratio of 2.5;

[0042] b) Side blowing cooling: wind temperature 16°C, humidity 90%, wind speed 0.40m / s;

[0043] 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%;

[0044] 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 4200m / min to obtain POY filaments;

[0045] e) Guide wire heating: the POY filament pas...

Embodiment 2

[0051] A kind of manufacturing method of full-dull fine-denier light network nylon 6DTY comprises the following steps:

[0052] a) Melt high-speed spinning: Full-dull nylon 6 slices are melted and high-speed spinning, wherein the screw pressure is 125kg / cm 2 , the screw speed is 45r / min, and the melt spinning temperature is 260°C; the spinneret hole of the spinneret used is circular, with a diameter of 0.25mm and an aspect ratio of 3.0;

[0053] b) Side blowing cooling: wind temperature 18°C, humidity 95%, wind speed 0.6m / s;

[0054] 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%;

[0055] 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 4300m / min to obtain POY filaments;

[0056] e) Guide wire heating: the POY filament pass...

Embodiment 3

[0062] A kind of manufacture method of full matt fine denier light network nylon 6DTY is characterized in that, comprises the following steps:

[0063] a) Melt high-speed spinning: Full-dull nylon 6 slices are melted and high-speed spinning, wherein the screw pressure is 120kg / cm 2 , the screw speed is 35r / min, and the melt spinning temperature is 255°C; the spinneret hole of the spinneret used is circular, with a diameter of 0.27mm and an aspect ratio of 3.0;

[0064] b) Side blowing cooling: wind temperature 17°C, humidity 92%, wind speed 0.45m / s;

[0065] 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%;

[0066] 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 4250m / min to obtain POY filaments;

[0067] e) Guide wire heat...

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Abstract

An embodiment of the invention discloses a complete-extinction thin and light meshy polyamide fiber 6 draw textured yarn (DTY) manufacture method. The method comprises the following steps of (a) fusion and high-speed spinning, (b) lateral blowing and cooling, (c) oil coating and beam concentration, (d) winding, (e) fiber guiding and heating, (f) cooling and false twisting, (g) drafting, and finally complete-extinction thin and light meshy polyamide fiber 6 DTY is obtained. By adjusting selection of a spinneret plate, the spinning temperature, cooling conditions, spinning speed, oil coating rate, winding speed and the like, the problems including much floating fiber, multiple broken ends and low full barrel rate in the complete extinction thin and light meshy polyamide fiber 6 DTY production process, uneven filling power, poor mesh evenness, much rigor-point broken filament and low in strength of post-processed yarns are solved, the product production quality is stable, and the rate of finished products is high.

Description

technical field [0001] The invention belongs to the technical field of spinning, and in particular relates to a method for manufacturing full-dull fine-denier light network nylon 6DTY. Background technique [0002] According to the matting agent titanium dioxide TiO in nylon chips 2 Depending on the content, nylon chips are generally divided into bright, semi-dull and full-dull. TiO in large bright slices 2 0% mass fraction, TiO in semi-dull slices 2 The mass fraction is 0.30%+0.05%, TiO in full extinction slice 2 The mass fraction is as high as 2.5%±0.1%. The main difference between semi-dull slices and full-dull slices is that TiO 2 The content is different, the latter is more than 8 times of the former. Full-dull slicing not only reduces the reflection and flickering of the fibers, but also makes the subsequent fibers have the advantages of soft luster, good deep dyeing, high fabric drape, and strong shielding performance, which can meet the needs of making high-end...

Claims

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Application Information

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IPC IPC(8): D01D5/088D01D1/04D01D1/10D01D4/00D02G1/02D02J13/00D02J1/22D01F6/90
Inventor 刘文华陈宜生李秀群张岚岚
Owner 浙江亚特新材料有限公司
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