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High-shrinkage polypropylene/nylon complex ultrafine fiber and production method

A composite fiber and superfine fiber technology, which is applied in the field of fiber production, can solve the problem of not being able to produce composite fibers with high shrinkage rate, and achieve the effect of good shrinkage rate

Active Publication Date: 2015-07-15
NINGBO SANBANG MICROFIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Propylene-nylon composite superfine fiber is often limited by the material properties of polypropylene and nylon, and the shrinkage rate of the composite fiber is also affected to a certain extent. It is often impossible to make a composite fiber with a high shrinkage rate, which brings certain limitations to its application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] This embodiment provides a high-shrinkage polypropylene nylon composite ultrafine fiber, which includes ultrafine polypropylene nylon composite fiber, and the ultrafine polypropylene nylon composite fiber uses ultrafine modified polypropylene fiber as the core thread, and the outer coating is denatured. Composed of nylon fiber layers, the ultrafine modified polypropylene fiber core wire contains 10 parts of polyurethane melt and 2 parts of silica nano-powder materials in every 100 parts by weight of polypropylene melt; the ultrafine modified polypropylene fiber The diameter of the core wire is 0.1 micron, and the modified nylon contains 5 parts by weight of Vistamaxx propylene-based elastomer in the melt of 100 parts by weight of nylon 6, and the diameter of the coated composite fiber is 1 micron.

[0011] A kind of production method of high-shrinkage acrylic composite microfiber provided by the present embodiment comprises adopting the above-mentioned high-shrinkage acr...

Embodiment 2

[0014] The high-shrinkage polypropylene nylon composite superfine fiber provided by this embodiment, the superfine modified polypropylene fiber core line contains 20 parts of polyurethane melt and 5 parts of silica nanometer in every 100 parts by weight of polypropylene melt. Powder material; ultrafine modified polypropylene fiber core wire diameter is controlled at 1.0 micron, and described modified nylon contains 10 parts by weight of Vistamaxx propylene-based elastomer in the melt of 100 parts by weight of nylon 6, covering The final composite fiber diameter is controlled at 4 microns. The production steps are the same as in Example 1.

[0015] Through experimental testing, the elastic recovery rate is 100% when the elongation rate is 10%. And the composite fiber strength reaches 8.0cN / dtex.

Embodiment 3

[0017] The high-shrinkage polypropylene nylon composite superfine fiber provided by this embodiment, the superfine modified polypropylene fiber core line contains 15 parts of polyurethane melt and 3.5 parts of silica nanometer in every 100 parts by weight of polypropylene melt. Powder material; ultrafine modified polypropylene fiber core wire diameter is controlled at 0.5 micron, and described modified nylon contains 8 parts by weight of Vistamaxx propylene-based elastomer in the melt of 100 parts by weight of nylon 6, covering The final composite fiber diameter is controlled at 2 microns. The production steps are the same as in Example 1.

[0018] Through experimental testing, the elastic recovery rate is 100% when the elongation rate is 10%. And the composite fiber strength reaches 7.8cN / dtex.

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Abstract

The invention discloses a high-shrinkage polypropylene / nylon complex ultrafine fiber. The polypropylene / nylon complex ultrafine fiber comprises an ultrafine polypropylene / nylon complex fiber formed by taking an ultrafine modified polypropylene fiber as a center yarn and coating the ultrafine modified polypropylene fiber with a modified nylon fiber layer, wherein the ultrafine modified polypropylene fiber center yarn is formed by containing polyurethane and a silicon dioxide nano-powder material in polypropylene; the modified nylon is formed by containing a Vistamaxx propylene-based elastomer in nylon 6. The high-shrinkage polypropylene / nylon complex ultrafine fiber obtained by a production method provided by the invention has good fiber characteristics of polypropylene and good fiber characteristics of nylon and also shows the elasticity functions of polyurethane and the Vistamaxx propylene-based elastomer. Through experimental tests, the recovery rate of elasticity is 100% when the elongation is 10%. The complex fiber strength reaches 7.5-8.0cN / dtex.

Description

technical field [0001] The invention relates to a fiber production technology, in particular to a high-shrinkage acrylic composite superfine fiber and a production method. Background technique [0002] Propylene-nylon composite ultrafine fiber is often limited by the material properties of polypropylene and nylon, and the shrinkage rate of the composite fiber is also affected to a certain extent. It is often impossible to produce composite fibers with high shrinkage rate, which brings certain limitations to its application. Contents of the invention [0003] The object of the present invention is to provide a high-shrinkage acrylic composite ultra-fine fiber and a production method that not only have a high shrinkage rate but also have the characteristics of the fiber itself in order to solve the above-mentioned deficiencies in the prior art. [0004] In order to achieve the above object, the present invention provides a high-shrinkage propylene nylon composite ultrafine f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/06D01F8/12D01F1/10
Inventor 张永国陈岳
Owner NINGBO SANBANG MICROFIBER