Ring spinning elastic weft with high elongation and production process of ring spinning elastic weft

A production process, ring spinning technology, applied in the field of spinning, to achieve the effects of good heat resistance, less weft stop, less loss of strength and extensibility

Inactive Publication Date: 2016-11-23
山东合信科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, weaving elastic weft yarns of radial tire cord cannot meet the requirements of the above four aspects at the same time

Method used

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  • Ring spinning elastic weft with high elongation and production process of ring spinning elastic weft
  • Ring spinning elastic weft with high elongation and production process of ring spinning elastic weft
  • Ring spinning elastic weft with high elongation and production process of ring spinning elastic weft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 A kind of production technology of ring spinning high elongation elastic weft yarn

[0048] The ring-spinning spinning frame is modified, and the hanging wire frame and the wire guide wheel are installed, and the cotton fiber is covered on the outside of PA66UDY. The outsourcing cotton passes through the roving, and is drafted by the roller to make a beard. Through the twisting system of the spinning frame, the cotton fiber is tightly and evenly wound on the outer layer of PA66UDY, and wound on the bobbin to make a spun bobbin. After the bobbin is twisted and twisted, it is processed by an automatic winding machine Cone shape.

[0049] Specifically include the following steps:

[0050] Step 1. Preparation of PA66 undrawn yarn

[0051] The preparation of described PA66 unstretched silk, comprises the following steps:

[0052] Include the following steps:

[0053] (1) Raw material selection

[0054] Use PA66 resin, slice viscosity 2.65-3.1;

[0055] The...

Embodiment 2

[0108] Embodiment 2 A kind of production technology of ring spinning high elongation elastic weft yarn

[0109] Specifically include the following steps:

[0110] Step 1. Preparation of PA66 undrawn yarn

[0111] The preparation method is the same as in Example 1, only the following steps are changed:

[0112] (2) Modification

[0113] The mass ratio of the total mass of the potassium iodide liquid and the copper acetate liquid to the PA66 resin is 1:300.

[0114] (6) Spinning, cooling and forming

[0115] Component preheating temperature: 320°C, metering pump specification: 2.4ml / r×2, metering pump speed: 18 rpm, side blowing wind speed 1.3 m / s, side blowing wind temperature: 25°C, rheumatism 70%.

[0116] (7) Winding

[0117] The filaments are cooled and formed by side blowing and enter the winding machine through the interlayer heat pipe tunnel;

[0118] Upper godet frequency: 70HZ, lower godet frequency: 70HZ, friction roller frequency: 70HZ, reciprocating traverse f...

Embodiment 3

[0142] Embodiment 3 A production process of ring spinning high elongation elastic weft yarn

[0143] Specifically include the following steps:

[0144] Step 1. Preparation of PA66 undrawn yarn

[0145] The preparation method is the same as in Example 1, only the following steps are changed:

[0146] (2) Modification

[0147] The mass ratio of the total mass of the potassium iodide liquid and the copper acetate liquid to the PA66 resin is: 1:700.

[0148] (6) Spinning, cooling and forming

[0149] Component preheating temperature: 323°C, metering pump specification: 2.4ml / r×2, metering pump speed: 18.2 rpm, side blowing wind speed 1.34 m / s, side blowing wind temperature: 26°C, rheumatism 75%.

[0150] (7) Winding

[0151] The filaments are cooled and formed by side blowing and enter the winding machine through the interlayer heat pipe tunnel;

[0152] Upper godet frequency: 72HZ, lower godet frequency: 72HZ, friction roller frequency: 71HZ, reciprocating traverse frequenc...

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Abstract

The invention provides a ring spinning elastic weft with high elongation and a production process of the ring spinning elastic weft with the high elongation. The elastic weft has the fineness being 22 plus or minus 2 S. The production process comprises feeding of PA66 undrawn yarn, yarn spinning and automatic winding, wherein the PA66 undrawn yarn has the fineness being 180 plus or minus 20 dtex; the prepared elastic weft has the fineness being 22 plus or minus 2 S, the single yarn breaking strength being 260 plus or minus 30 cN, the strength CV smaller than 8%, the elongation at break being 330 plus or minus 30% and the elongation CV smaller than 8%. The prepared elastic weft has good heat resistance, and the strength and the extensible performance loss of the elastic weft are small in the heat treatment process of fabric dipping and the like; when the prepared elastic weft is used for weaving radial tire cord fabric, the efficiency is high and little weft stoppage is caused during weaving by the aid of a jet cloth machine; the number of times of weft stoppage of a hundred thousand of weft is 5 or below. The prepared elastic weft can sufficiently keep the texture stability of the cord fabric.

Description

technical field [0001] The invention provides a ring-spun high-elongation elastic weft yarn and a production process thereof, which belong to the technical field of spinning. Background technique [0002] The rate of radialization of tires in my country has grown rapidly. According to industry reports, the rate of radialization of tires in 2006 reached 67.1%. There are two types of radial tires used in the market: nylon and polyester. Nylon yarns are generally made of nylon (PA) 66 industrial silk; the weaving material requirements for weaving radial tire cord fabrics are special--- Must meet the following requirements: [0003] (1) High efficiency and less weft stop when using air-jet cloth machine; (2) High strength and high elongation; (3) Good heat resistance after the cord fabric is fully dipped in glue. During the heat treatment process such as fabric dipping, the strength And the loss of extensibility is small; (4) It can fully maintain the stability of the fabric s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/32
CPCD02G3/328D10B2201/02D10B2331/02D10B2401/061
Inventor 李国栋
Owner 山东合信科技股份有限公司
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