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

A technology of nylon fiber and production method, which is applied in the field of spinning materials and achieves the effects of simple process, high strength and good mechanical properties

Active Publication Date: 2008-03-12
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 ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The ratio of the following table 1 was prepared using a twin-screw extruder to prepare KAl(SO 4 ) 2 Additive masterbatch, where the temperatures of each zone of the extruder are: 260°C, 305°C, 290°C and 290°C.

[0045] Table 1: Containing KAl(SO 4 ) 2 additive masterbatch formula

[0046] ingredients

[0047] The obtained KAl(SO 4 ) 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. Then KAl(SO 4 ) 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, 270°C, 270°C, and 275°C. The spinning temperature It is 250°C. The spinneret hole diameter used is 0.35mm, the length is 0.7mm, and the winding speed is 1700m / min. It can obtain fine-denier nylon fibers with a winding fineness of 0.79 de...

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 NaCl and LaCl according to the ratio of following table 2 3 The additive masterbatch of the mixture (mixing weight ratio 1:1), the weight ratio of the additive masterbatch and nylon 6 chips is 1:1000, the spinning temperature is 255°C, and the winding speed is 1400m / min. 1.20 times hot drawing on the drawing machine. 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: NaCl and LaCl 3 Additive Masterbatch Formulation for Mixtures

[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 NaBr and CaCl according to the ratio of following table 3 2 The additive masterbatch of the mixture, 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%.

[0054] Table 3: NaBr and CaCl 2 Additive Masterbatch Formulation for Mixtures

[0055] ingredients

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Abstract

The invention relates to a fine denier or super fine denier nylon fiber as well as relevant production method. The invention needs to solve the technical problem of providing a fine denier or super fine denier nylon fiber sized in smaller than 1 denier and relevant production methods. The invention fiber is characterized in that the fiber comprises nylon and a mixture of effective quantum of metal compound and effective quantum of assistant-antioxidant. The invented production method is as follows: Perform pre-smelting for the metal compound mixture and the nylon before mixing together and extrude to form additive shaped in masterbatch particles. The metal compound mixture shares 5 to 50 percent of total weight of additive; then, perform smelting filature for the additive masterbatch particles and nylon together.

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): D01F6/60D01F1/10
Inventor 徐怡庄邱化玉来国桥刘毓海吴燕婕徐利文章成峰黄昆刘少轩李慧珍刘玉峰盛春荠齐剑李龙波王明超马清芳徐端平潘庆华赵莹王笃金李维红吴瑾光徐端夫
Owner HANGZHOU NORMAL UNIVERSITY
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