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Method for manufacturing light superfine fiber base cloth

A technology of ultra-fine fibers and manufacturing methods, applied in fiber processing, textiles and papermaking, single-component polyolefin artificial filaments, etc., can solve problems such as failure to meet requirements, heavy leather, etc.

Inactive Publication Date: 2007-01-10
SAN FANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the densities of these two fibers are 1.39 and 1.14 g / cm 3 , than the aforementioned polypropylene density 0.91g / cm 3 52.7% and 25.3% higher respectively, so the leather is still too heavy to meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] With melting index (MI) being 35g / 10min polypropylene ester granules (China Taiwan Fuju Company production) and melting index (MI) being 15g / 10min thermoplastic polyvinyl alcohol ester granules (U.S. Air Products and Chemical Company Production) mixed at a weight ratio of 50:50, and then put into the extruder to mix and melt (the setting of the extruder is: the temperature of the first zone to the fifth zone is controlled at 170°C, 200°C, 220°C, 220°C ℃, 220℃), and then the polymer is extruded from the spinneret at a spinning temperature of 220℃, and a single fiber is produced at a single-hole throughput of 0.5g / min and a coiling speed of 300m / min. It is an unstretched fiber with a density of 15 denier and an island number of about 1000 islands.

[0026] The unstretched yarn is stretched 2.5 times by a heating roller at 70°C, and after creasing, oiling, drying, and cotton cutting, a single fiber with a fineness of 6 deniers, a strength of 2.0g / den, and an elongation of ...

Embodiment 2

[0029] Polypropylene terephthalate grains (produced by Fuju Company, Taiwan, China) that melt index (MI) is 5g / 10min and polyethylene terephthalate grains containing sulfonic acid sodium salt of 0.68 with intrinsic viscosity (IV) Produced by Taiwan Far East Textile Co., Ltd.) into the extruder to melt, use the gear pump to adjust the ratio of the two raw materials to 70:30, and then extrude the polymer from the composite sea-island spinneret at a spinning temperature of 290 ° C, and An undrawn fiber yarn with a single fiber fineness of 9 denier and an island number of 37 islands was produced at a single hole throughput of 1.0 g / min and a take-up speed of 1000 m / min.

[0030] The unstretched yarn is stretched 3 times through a heating roller at 90°C and a hot water tank at 80°C. After creasing, oiling, drying, and cutting cotton, a single fiber with a fineness of 3 deniers and a strength of 4.0g can be obtained / den, fiber cotton with an elongation of 40%.

[0031] The aforeme...

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Abstract

The invention associates to a method preparing supercritical fiber, which includes island component polymer and sea component polymer spinning supercritical fiber. The key point is that island component is polyolefin polymer and sea component is a polymer which is different in solution. The method offers a way to produce a kind of superfine fiber base cloth. Using superfine fiber produced in that way we can get a sort of backing material, and then let sea component of backing material solute to get the superfine fiber base cloth. Because of the feature that island component made from polyolefin polymer is of high bending elasticity and low density, the the superfine fiber base cloth produced in this way can loss weight very much and be up to the thickness when sea component solute.

Description

technical field [0001] The present invention relates to a manufacturing method of lightweight ultrafine fibers and a method for manufacturing lightweight artificial leather and fabrics using the lightweight ultrafine fibers. Background technique [0002] Generally, artificial leather is manufactured by using fibers spun from polymer raw materials to make a non-woven fabric substrate, and then manufacturing the non-woven fabric substrate into artificial leather through several processing steps. In order to make artificial leather lighter than genuine leather or general microfiber artificial leather (referring to artificial leather based on polyamide microfiber or polyester microfiber), the base material of the leather must be lightweight In addition, the fibers of the base material are miniaturized to maintain a genuine leather feel and a plush feel on the surface. [0003] Patent No. 79107562 application "Method for making polyurethane synthetic leather with lightweight pol...

Claims

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Application Information

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IPC IPC(8): D01F6/04D01D5/00
Inventor 王敬堂林孟经冯崇智郑国光林至逸
Owner SAN FANG CHEM IND
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