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

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

Inactive Publication Date: 2010-11-03
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 twin screw extruder to prepare GaCl according to the ratio of Table 1 below 3 Additive masterbatch, where the temperature of each zone of the extruder is: I zone is 260°C; II zone is 300°C; III zone is 290°C; IV zone is 290°C.

[0045] Table 1: Containing GaCl 3 Additive masterbatch formula

[0046] Ingredients

Mass parts

Nylon 6 slices

80

Metal salt GaCl 3

20

Antioxidant (antioxidant 1010 / antioxidant 168)

1

Antistatic agent PEG600

12

Antistatic agent PEG20000

3

[0047] The resulting GaCl 3 The additive masterbatch and nylon 6 chips are dried in a vacuum oven to remove water and small molecules. The drying temperature is between 90 and 100°C, and the drying time is between 24 and 48 hours. Then add GaCl 3 The additive masterbatch is mixed with nylon 6 chips at a weight ratio of 5:1000.

[0048] In melt spinning, the temperature of the melt in each zone of the screw extruder is 250°C, 270°C, 270°C, 275°C, and the spinning temperature is 250°C. The sp...

Embodiment 2

[0050] Prepare fine denier or superfine denier nylon fibers according to the method of Example 1. The difference is that the ratio of the following table 2 is used to prepare SnCl using a twin screw extruder 2 The additive masterbatch, the weight ratio of the additive masterbatch to nylon 6 chips is 1:1000, the spinning temperature is 255°C, the winding speed is 1400m / min, and the obtained winding yarn is hot drawn on a drafting machine by 1.20 times. A fine-denier nylon fiber with a fineness of 0.70 denier was obtained. The mechanical properties test fiber filament strength reaches 4.0cN / dtex, and the elongation at break is 19%.

[0051] Table 2: SnCl 2 Additive masterbatch formula

[0052] Ingredients

Embodiment 3

[0054] Prepare fine denier or superfine denier nylon fibers according to the method of Example 1, the difference is that the ratio of the following table 3 is used to prepare BiCl using a twin screw extruder 3 The additive masterbatch, the weight ratio of the additive masterbatch to nylon 6 chips is 5:100, the spinning temperature is 255°C, and the winding speed is 1500m / min. A fine-denier nylon fiber with a fineness of 0.40 denier was obtained. The mechanical properties test the fiber strength to reach 3.9cN / dtex, and the elongation at break is 24%.

[0055] Table 3: BiCl 3 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 third, a fourth or a fifth 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 a third, a fourth or a fifth 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 third, the fourth or the fifth 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.

Description

Technical field [0001] The invention relates to the field of spinning materials, in particular to a fine denier or superfine denier nylon fiber and a production method thereof. Background technique [0002] Generally speaking, the woven polymer materials 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, the fiber filaments obtained by the melt spinning method can reach the fineness (fineness) of several deniers. Products that are woven and woven with fiber filaments of this size, such as clothing fabrics, have many advantages, so the market has a broad application space. [0003] However, with the improvement of people's living standards, the requirements for textiles are getting higher a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/60D01F1/10D01D5/08
Inventor 邱化玉徐怡庄来国桥徐利文吴燕婕章成峰刘毓海李志芳黄昆刘少轩李慧珍厉嘉云刘玉峰张秀芹李龙波王明超陆达天马清芳张国栋赵莹王笃金吴瑾光徐端夫
Owner HANGZHOU NORMAL UNIVERSITY