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

A technology of nylon fiber and production method, applied in the field of spinning materials, to achieve the effects of simple process, 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

[0043] Prepare GaCl using a twin-screw extruder according to the ratio in Table 1 3 Additive masterbatch, where the temperature of each zone of the extruder is: 260°C for zone I; 300°C for zone II; 290°C for zone III; 290°C for zone IV.

[0044] Table 1: Containing GaCl 3 additive masterbatch formula

[0045] ingredients

parts by mass

Nylon 6 slices

80

metal salt GaCl 3

20

Antioxidant (Antioxidant 1010 / Antioxidant 168)

1

Antistatic agent PEG600

12

Antistatic agent PEG20000

3

[0046] GaCl 3 The additive masterbatch and nylon 6 chips are 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. Then GaCl 3 The additive masterbatch is mixed with nylon 6 chips at a weight ratio of 5:1000

[0047] For melt spinning, the temperature of the melt in each zone of the screw extruder is 250°C, 270°C, 270°C, 275...

Embodiment 2

[0049] Prepare fine denier or superfine denier nylon fiber according to the method for embodiment 1, difference is, use twin-screw extruder to prepare SnCl according to the ratio of following table 2 2 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%.

[0050] Table 2: SnCl 2 Additive Masterbatch Formulation

[0051] ingredients

Embodiment 3

[0053] Prepare fine denier or superfine denier nylon fiber according to the method for embodiment 1, difference is, use twin-screw extruder to prepare BiCl according to the ratio of following table 3 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 1500 m / 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 / dtex, and the elongation at break is 24%.

[0054] Table 3: BiCl 3 Additive Masterbatch Formulation

[0055] ingredients

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Abstract

The invention relates to a fine denier or ultrafine denier nylon fiber and a production method thereof. The technical problem to be solved by the present invention is to provide a fine denier or ultrafine denier nylon fiber with a fineness less than 1 denier and a production method thereof. The fiber of the present invention is characterized in that the fiber contains nylon and an effective amount of a compound of the third main group or the fourth main group or the fifth main group metal and an effective amount of an auxiliary agent-antioxidant. The production method of the present invention is characterized in that the compound of the third main group or the fourth main group or the fifth main group metal is pre-melted, blended and extruded with nylon to obtain the additive in the form of a masterbatch, wherein the third main group or the fourth main group Or the compound of the metal of the fifth main group accounts for 5-50% of the total weight of the additive; then the additive masterbatch is melt-spun together with nylon.

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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Patent Type & Authority Applications(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