Process for producing fine denier or superfine denier nylon fibre composition and fine denier or superfine denier nylon fibre

A nylon fiber and composition technology is applied in the field of producing fine denier or ultra-fine denier nylon fibers and the composition of fine denier or ultra-fine denier nylon fibers to achieve good mechanical properties, high elongation at break and easy operation. Effect

Inactive Publication Date: 2008-11-26
PEKING UNIV +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

[0045] Prepare LaCl using a twin-screw extruder according to the ratio in Table 1 3 Additive masterbatch, where the temperatures of each zone of the extruder are: 260°C, 305°C, 290°C and 290°C. .

[0046] Table 1: Contains LaCl 3 additive masterbatch formula

[0047] ingredients

parts by mass

Nylon 6 slices

80

Metal salt LaCl 3

20

Antioxidant (Antioxidant 1010 / Antioxidant 168)

1

PEG600

12

PEG20000

3

[0048] The resulting LaCl 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.

[0049] Then add LaCl 3 The additive masterbatch and nylon 6 chips are mixed at a weight ratio of 8:1000 and melt-spun. The temperatures of the melt in each zone of the screw extruder are 250°C, 270°C, 270°C, and 275°C. The spinning temperature It is 250°C. The...

Embodiment 2

[0051] Prepare fine denier or superfine denier nylon fiber according to the method for embodiment 1, difference is, use twin-screw extruder to prepare EuCl in the ratio of following table 2 3 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%.

[0052] Table 2: EuCl 3 Additive Masterbatch Formulation

[0053] ingredients

Embodiment 3

[0055] Prepare fine denier or superfine denier nylon fiber according to the method for embodiment 1, difference is, use twin-screw extruder to prepare Tb (acetylacetone) in 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 4000 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 / dte, and the elongation at break is 24%.

[0056] Table 3: Tb(Acetylacetone) 3 Additive Masterbatch Formulation

[0057] ingredients

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Abstract

The invention discloses a method for producing a compound of fine denier nylon fiber or super fine denier nylon fiber or producing fine denier nylon fiber or super fine denier nylon fiber. The compound comprises nylon and a lanthanide rare-earth metal compound; wherein the weight of the rare-earth metal in the rare-earth metal compound is between 50ppm to 10 percent based on the weight of nylon used. The method for producing the fine denier nylon fiber or super fine denier nylon fiber is a melt-spinning method, which includes the step of adding a rare-earth metal compound during the process of nylon melt-spinning. Fine denier nylon fiber or super fine denier nylon fiber, the denier of which is smaller than 1, can be obtained by the method.

Description

technical field [0001] The invention relates to the field of spinning materials, in particular to a composition for producing fine-denier or superfine-denier nylon fibers and a method for producing fine-denier or superfine-denier nylon fibers. 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 raisi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/10D01F1/09D01D5/10
Inventor 章成峰来国桥刘玉峰蒋剑雄吴燕婕邱化玉刘毓海徐端平黄昆伍川刘少轩徐利文李慧珍陆达天张秀芹倪勇李荣波马清芳王明超潘庆华赵莹王笃金李维红杨展澜徐怡庄吴瑾光徐光宪徐端夫郝超伟
Owner PEKING UNIV
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