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Hygroscopic fine denier/superfine denier nylon masterbatch, nylon and preparation method thereof

A fine-denier nylon and hygroscopicity technology, applied in the field of spinning materials, can solve the problems of unspecified nylon fiber specifications, large amount of moisture-absorbing modifier, and difficult practical operation, etc., to achieve improved dyeing performance, improved moisture absorption and perspiration performance, The effect of improving the moisture absorption rate

Inactive Publication Date: 2010-06-23
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this invention process is complex, easy to cause environmental pollution, and the amount of hygroscopic modifier is large, the cost is high, and it is not easy to operate
In addition, the patent does not point out the specifications of nylon fibers, and there are obvious differences between conventional fibers and fine denier fibers

Method used

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  • Hygroscopic fine denier/superfine denier nylon masterbatch, nylon and preparation method thereof
  • Hygroscopic fine denier/superfine denier nylon masterbatch, nylon and preparation method thereof
  • Hygroscopic fine denier/superfine denier nylon masterbatch, nylon and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Get the raw materials ready: take by weight 1% of the PVP (mass ratio is the mixture of PVP10000 and PVP24000 of 2: 1), 0.5% antioxidant (antioxidant 1010 and antioxidant 168, the ratio is 1 : 1), 0.3% of dispersant 1 (liquid paraffin) and dispersant 2 (PEG600), the ratio is 1:1.

Embodiment 2

[0067] The vacuum-dried nylon 6 slices and masterbatch (moisture content 700ppm) are transported to the twin-screw conventional spinning machine. The supply rate of the nylon slice pump is 30.0g / min, and the masterbatch pump supply flow rate is 1.5g / min. The spinning temperature is 280°C, the screw speed is 18r / min and the screw pressure is 70-80kg / cm 2 Next, the molten mixture is extruded by a screw (including static and dynamic mixers), pumped into the spinneret assembly by metering, filtered through 40-mesh sea sand, and then passed through the spinneret hole (the spinneret hole is characterized by a diameter of 0.25 mm, aspect ratio 2.7) extrusion. Then, in the spinneret ring air blowing device, the temperature of the blown air is 32°C, the humidity is 40% and the wind speed is 0.3m / s. Then the fibers cooled by side blowing are clustered and oiled through the oil mist nozzle. The oiling rate is 0.9%. The guide wheel and the rabbit silk head enter the winding head, and st...

Embodiment 3

[0069] Get the raw materials ready: take by weight 2.4% PVP (mass ratio is the mixture of PVP10000 and PVP24000 of 2: 1), 0.8% antioxidant (antioxidant BHT and antioxidant DLTP, ratio 1: 1), 0.6% of dispersant 1 (liquid paraffin) and dispersant 2 (PEG600), the ratio is 1:1.

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Abstract

The invention belongs to the field of spinning materials, first provides a hygroscopic fine denier / superfine denier nylon masterbatch which is prepared in the way that hygroscopic modifier, antioxidant and dispersing agent are proportionally added into a nylon 6 slice to be melt as well as blended and then be extruded, and the hygroscopic modifier is PVP; and the hygroscopic fine denier / superfine denier nylon masterbatch is proportionally mixed with the nylon 6 slice to carry out melt spinning, then are cooled, bundled and oiled as well as winded, and after twice drafting, hygroscopic fine denier / superfine denier nylon is prepared. The hygroscopic fine denier / superfine denier nylon provided by the invention has the filament number of 0.45 to 1.0dtex, breaking strength of 3.8 to 4.8 cN / dtex, elongation at break of 20 to 40 percent, and the moisture absorption of fibre of 4 to 10 percent, makes up the gap of preparing the hygroscopic fine denier / superfine denier nylon by adopting the conventional spinning method in both home and abroad, and meanwhile, the improved hygroscopicity of the nylon broadens the application range of the nylon.

Description

technical field [0001] The invention belongs to the field of spinning materials, and in particular relates to a special masterbatch for hygroscopic fine denier / ultrafine denier nylon, a preparation method thereof, and hygroscopic fine denier / ultrafine denier nylon prepared therefrom. Background technique [0002] At present, synthetic fibers generally include polyester (polyethylene terephthalate), nylon (polyamide), polypropylene (polypropylene), spandex (polyurethane), acrylic (polyacrylonitrile) and the like. These fibers have different properties and thus different uses. But at present generally take fabric, because its fiber is thicker, feel rough, softness is poor, air permeability is poor, water absorption is poor, easy to pilling. With the improvement of people's living standards, the requirements for textiles are getting higher and higher. To solve these problems, meet people's different requirements, and develop different types, research on new and functional fib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L39/06C08K5/01C08L71/08C08L67/04D01F6/90D01F1/10D01D5/08D01D5/088D01D5/096
Inventor 来国桥郝超伟马清芳蒋剑雄徐怡庄陆达天
Owner HANGZHOU NORMAL UNIVERSITY
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