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

A production method and technology of nylon fiber, applied in fiber treatment, fiber chemical characteristics, filament/thread forming, etc., to achieve the effect of simple process, high strength and good mechanical properties

Active Publication Date: 2011-04-13
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] Prepare MgCl using a twin-screw extruder according to the ratio in Table 1 2 Additive masterbatch, where the temperature of each zone of the extruder is: Zone I is 265°C; Zone II is 305°C; Zone III is 295°C; Zone IV is 295°C.

[0045] Table 1: Contains MgCl 2 additive masterbatch formula

[0046] ingredients

parts by mass

Nylon 6 slices

80

Metal salt MgCl 2

20

Antioxidant (Antioxidant 1010 / Antioxidant 168)

1

Antistatic agent PEG400

12

Antistatic agent PEG20000

5

[0047] The resulting MgCl 2 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.

[0048] Then MgCl 2 The additive masterbatch and nylon 6 chips are mixed at a weight ratio of 5:1000 and melt-spun. The temperatures of the melt in each zone of the screw extruder are 250°C, 27...

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 CaCl in 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%.

[0051] Table 2: CaCl 2 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 Sr(Ac) in the ratio of following table 3 2 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. The mechanical property test shows that the fiber filament strength reaches 3.8cN / dtex, and the elongation at break is 28%.

[0055] Table 3: Sr(Ac) 2 Additive Masterbatch Formulation

[0056] ingredients

[0057] Nylon 6 slices

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Abstract

The invention relates to a fine denier or superfine denier nylon fiber and relevant production methods, which is used for solving the technical problem of providing fine denier or superfine denier nylon fiber sized in smaller than 1 denier and relevant production methods. The fiber is characterized in that: the fiber comprises nylon and compound of effective quantum of a second main group metals and effective quantum of assistant-antioxidant. The production method is characterized in that: the compound of the second main group metal and the nylon are pre-smelted and mixed together to extrude to form, so as to obtain additive shaped in masterbatch particles. The compound of the second main group metal shares 5 to 50 percent of total weight of the additive; then, performing smelting filature for the additive masterbatch particles and nylon; consumption volume of the additive masterbatch particles can make the weight of the second main group metal element comply with the weight of the nylon in proportion.

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 Patents(China)
IPC IPC(8): D01F6/60D01F1/10D01D5/00
Inventor 刘玉峰来国桥邱化玉章成峰吴燕婕李美江刘毓海黄昆陆达天郝超伟刘少轩李慧珍徐怡庄罗蒙贤齐剑李荣波王明超马清芳赵莹王笃金吴瑾光徐端平邓元徐端夫
Owner HANGZHOU NORMAL UNIVERSITY