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Fine denier or ultra-fine denier nylon fibre and producing method thereof

A technology of nylon fiber and production method, which is applied in the field of spinning materials to achieve the effects of good mechanical properties, high elongation at break and easy operation

Inactive Publication Date: 2008-02-13
HANGZHOU NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, as far as the mentioned prior art is concerned, nylon fibers cannot be reasonably fine or ultra-fine denier, and the denier of the resulting fiber is still generally at least greater than 1 denier.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Use the twin-screw extruder to prepare LiCl additive masterbatch according to the ratio in Table 1, where the temperature of each zone of the extruder is: 265°C for zone I; 305°C for zone II; 295°C for zone III; 295°C for zone IV .

[0045] Table 1: LiCl-containing additive masterbatch formulation

[0046] ingredients

parts by mass

Nylon 6 slices

80

Metal salt LiCl

20

Antioxidant (Antioxidant 1010 / Antioxidant 168)

1

Antistatic agent PEG600

12

Antistatic agent PEG20000

3

[0047] The obtained LiCl additive masterbatch and nylon 6 slices were dried in a vacuum oven to remove moisture and small molecular substances. The drying temperature is between 90-100°C, and the drying time is 24-48 hours.

[0048] Then mix the additive masterbatch of LiCl with nylon 6 slices at a weight ratio of 5:1000 and then carry out melt spinning. The temperatures of the melt in each zone of the screw ex...

Embodiment 2

[0050] Prepare fine denier or superfine denier nylon fiber according to the method for embodiment 1, difference is, use twin-screw extruder to prepare K in the ratio of following table 2 2 SO 4 Additive masterbatch, the weight ratio of additive masterbatch and nylon 6 chips is 1:1000. The spinning temperature is 255°C, and the winding speed is 1400m / min. A fine-denier nylon fiber with a fineness of 0.70 denier was obtained. In the mechanical property test, the fiber filament strength reaches 4.0cN / dtex, and the elongation at break is 19%.

[0051] Table 2: K 2 SO 4 Additive Masterbatch Formulation

[0052] ingredients

Embodiment 3

[0054] Prepare fine denier or superfine denier nylon fiber according to the method for embodiment 1, difference is, use twin-screw extruder to prepare NaBr additive masterbatch in the ratio of following table 3, the weight ratio of additive masterbatch and nylon 6 chips is 5: 100, the spinning temperature is 255°C, and the winding speed is 4000m / min. A fine-denier nylon fiber with a fineness of 0.40 denier was obtained. In the mechanical property test, the fiber filament strength reaches 3.9cN / dte, and the elongation at break is 24%.

[0055] Table 3: NaRr additive masterbatch formula

[0056] ingredients

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Abstract

The invention relates to a micro or super micro nylon fiber and a method of making the fiber. The technical problems the invention needs to solve is to provide a micro or super micro nylon fiber with the fiber number which can be fewer than 1 denier and the method of making the fiber. The fiber of the invention is characterized in that the fiber contains nylon, a first main group metal chemical compound in an effective amount and an auxiliary agent-antioxidizing agent also in an effective amount. The making method of the invention is characterized in that the first main group metal chemical compound and the nylon are melted in advance, mixed together, extruded and shaped, and an additive in agglomerate shape is obtained, wherein, the first main group metal chemical compound accounts for 5 to 50percent of the total weight of the additive; and then the additive agglomerates and the nylon are melted and spinned, and the consumption of the additive agglomerates must make the ration of the weight of the first main group metal element to that of the nylon is consistent.

Description

technical field [0001] The invention relates to the field of spinning materials, in particular to a fine-denier or ultra-fine-denier nylon fiber and a production method thereof. Background technique [0002] Generally speaking, the polymer materials that can be spun include nylon (polyamide), polypropylene (polypropylene), polyester (polyethylene terephthalate) and acrylic (polyacrylonitrile). These materials can be spun to form filaments for use in the textile industry. Melt spinning is a commonly used spinning method, and fiber filaments suitable for spinning can be obtained by melt spinning. Generally, fiber filaments obtained by the melt spinning method can reach a fineness degree (fineness) of several deniers. The products obtained by weaving and weaving with such fiber filaments, such as clothing fabrics, have many advantages, so the market application space is broad. [0003] Yet along with the raising of people's living standard, also more and more higher to the r...

Claims

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Application Information

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IPC IPC(8): D01F6/60D01F1/10D01D5/08
Inventor 来国桥吴燕婕蒋剑雄章成峰刘毓海彭家建黄昆刘少轩李慧珍陈利民刘玉峰张秀芹李龙波王明超齐帆赵莹王笃金徐怡庄杨展澜吴瑾光徐端夫
Owner HANGZHOU NORMAL UNIVERSITY
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