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Ultra-fine denier nylon stable fiber production method

A production method and ultra-fine denier technology are applied in the field of synthetic fibers to achieve the effects of cost reduction, expansion of application scope and simple process

Active Publication Date: 2010-03-17
南通久润网络科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved in the present invention is that the production of ultra-fine nylon can be easily realized on conventional spinning equipment, and the performance of the spun ultra-fine nylon is stable, easy to dye, the production cost is greatly reduced, and it is easy to be widely popularized and applied

Method used

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  • Ultra-fine denier nylon stable fiber production method

Examples

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Embodiment 1

[0063] See figure 1 , this example follows the steps below.

[0064] 1) Spinning, on the twin-screw melt spinning equipment, add masterbatch and nylon 6 chips to mix, extrude the melted mixture into the spinneret assembly through the screw, and extrude through the spinneret holes after filtering through sea sand, Form tow; the amount of masterbatch added is 5% of the total weight of the two raw materials;

[0065] The raw material used in this example is nylon 6 chips, the relative viscosity is 2.47±0.02, and the density is 1.14g / cm 3 , and the melting point is 215~222°C. The special masterbatch is based on nylon 6 slices, adding 0.5% antioxidant - antioxidant 168 and antioxidant 1010 (the weight ratio of the two is 1:1), and 0.5% dispersant - poly Ethylene glycol, 0.5% stabilizer--liquid paraffin, 4% modifier--K 2 SO 4 and SrCl 2 (The weight ratio of the two is 1:3) Melt extrusion and granulation on a twin-screw extruder, the melt flow index of the obtained masterbatch ...

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Abstract

The invention relates to an ultra-fine denier nylon stable fiber production method which solves technical problems that a conventional spinning device can produce ultra-fine denier nylon, the spun ultra-fine nylon has stable performance and is easily dyed, and the production cost is substantially reduced. The production method comprises the following steps: (1) spinning, on a double-screw melt-spinning device, master batches are added and mixed with nylon slices to lead that the content of the master batches is 1-10%, the melt mixture fusant is extruded into a spinning pack by a screw, filtered by sea sand and squeezed out by a spinneret orifice to form silk flock, wherein the diameter of the spinneret orifice is 0.15-0.35mm and the length-diameter is 2-4; the pressure of the screw is 80-100kg / cm<2>; sea sand is 60 meshes, 80 meshes or 100 meshes; and a filter screen is 250 meshes or 400 meshes; (2) cooling; (3) oiling and winding; (4) bundling; (5) oil immersion; (6) drawing; (7) curling; (8) loosing and heat shaping; (9) cutting, obtaining the product.

Description

technical field [0001] The invention relates to a synthetic fiber, in particular to a method for producing superfine denier nylon staple fiber by a conventional spinning method. Background technique [0002] The unique structural properties of microfibers are attracting more and more people's interest, and the research on this type of fibers has also been carried out rapidly and extensively. At present, there are several methods for producing ultrafine fibers, including conventional spinning improvement method, sea-island composite spinning method, stripping composite spinning and other methods. The conventional spinning improvement method is a method of transforming the traditional spinning method by selecting raw materials with suitable relative molecular weight, optimizing the spinning process and other conditions, and carrying out necessary key equipment transformation. This method has the characteristics of simple equipment, simple post-processing process, low producti...

Claims

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Application Information

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IPC IPC(8): D01D5/10D01D11/00D02G1/00D02J1/22D01G1/04D01F6/90D01F1/10
Inventor 来国桥郝超伟马清芳蒋剑雄徐怡庄陆达天
Owner 南通久润网络科技有限公司
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