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Porous superfine polyamide 6 fully-drawn yarn, preparation method thereof, and equipment thereof

A fully-drawn yarn and polyamide technology, which is applied in the field of chemical fibers, can solve the problems of inability to realize porous ultra-fine denier polyamide 6 fully-drawn yarn, inability to effectively adjust and control filaments, unstable melt-spinning forming, etc. , to achieve the effect of improving melt mixing uniformity and pressure stability, low cost and low shrinkage

Inactive Publication Date: 2012-06-13
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the existing conventional melt spinning process technology methods and equipment, there are disadvantages in the uniform stability of the spinning and cooling forming of porous ultra-fine denier polyamide 6 primary fibers due to the inability to effectively adjust and control the winding tension of the filaments. factors, the melt spinning formation is unstable, there are many broken ends, the uniformity of the fiber is poor, the uniformity of the dyeing is poor, the product quality is unstable, and it is impossible to realize the full stretch of 55dtex / 144f~75dtex / 144f porous ultra-fine denier polyamide 6 silk production

Method used

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  • Porous superfine polyamide 6 fully-drawn yarn, preparation method thereof, and equipment thereof

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Embodiment 1

[0020] This embodiment provides a new 55dtex / 144f porous ultrafine polyamide 6 fully drawn yarn with excellent production performance. It is based on the production of conventional types of FDY equipment, including pre-crystallization, drying, screw melt extrusion device, install the additive injector on the feed port of the screw melt extrusion device, spinning box, metering pump, spinning assembly, spinneret In the plate spinning device, the Xu Leng heater is installed under the spinneret, and the heating area is 100-120mm in height; the ring blowing cooling device is installed under the Xu Leng heater; the oiling and bundling oil rack is installed under the ring blowing cooling device , The distance from the spinneret is 750±50 mm; the winding forming device includes the first, second and third drafting rolls, pre-network device, network device and winder.

[0021] The production process is as follows:

[0022] The relative viscosity of polyamide 6 chips is 2.70~3.10, the relat...

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Abstract

The invention relates to a porous superfine polyamide 6 fully-drawn yarn, a preparation method thereof, and equipment thereof. According to the invention, existing FDY production equipment is adopted. A raw material polyamide 6 is sliced and dried; an additive is added on line; the material is subject to screw extrusion and melt extrusion; the material is then cured with a gradually cooling manner and a circular air blow cooling manner; with a reasonably selected spinning temperature of 259-262 DEG C, an air temperature in the circular air blowing process of 19-23 DEG C, a humidity of 85-95%, an air velocity of 0.35-0.45m / s, an oiling and clustering position of 700-800mm, and a winding speed of 4100-4600m / min, the porous superfine polyamide 6 fully-drawn yarn product with a specification of 55dtex / 144f-75dtex / 144f is prepared. Flexible operation is adopted in the preparation method. The preparation method is advantaged in simple technology and low production cost. The product is advantaged in stable performance, good yarn evenness, and good coloration property.

Description

Technical field [0001] The invention relates to a novel porous ultrafine polyamide 6 fully drawn yarn, a preparation method and equipment thereof, and belongs to the technical field of chemical fibers. Background technique [0002] The latent characteristics of porous ultra-fine polyamide 6 fully drawn yarn have excellent physical and chemical properties such as high flexibility and soft hand feeling, high moisture and oil absorption, large specific surface area and high density structure. The fabric products have Moisture absorption and breathability, low shrinkage, strong coloring, good folding, strong corrosion resistance, plump and soft touch, easy to wash and dry, non-ironing, good drape, good comfort and other good super-high simulation natural fiber effects, Therefore, it is widely used in medium and high-end consumer markets such as apparel fabrics, bedding, decorative items, and leather products. [0003] At present, conventional polyamide 6 fully drawn filaments are main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/10D01D1/04D01D5/08D01D5/16D01D13/00
Inventor 管新海赵广兵李海涛
Owner SUZHOU UNIV
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