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Polyamide fiber package and production method thereof

A polyamide fiber and production method technology, applied in the field of polyamide materials, can solve the problems of insignificant effect, sagging, affecting the spinning effect and fiber quality, etc., and achieve the effect of avoiding relaxation and softening or sagging and stable production.

Active Publication Date: 2017-06-13
CATHAY R&D CENT CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although long carbon chain polyamide belongs to polyamide, it is not easy to cool after spinning in the same spinning and winding forming process, resulting in the phenomenon that the winding yarn is prone to loosening, softening or edge collapse on the winding roller. Affect spinning effect and fiber quality
In order to improve the above problems, many improvements have been made to the spinning method in the prior art, but the effects are not obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109]Embodiment one: (UDY)

[0110] The present embodiment provides a kind of production method of polyamide fiber package, specifically comprises the following steps:

[0111] (1), polyamide resin chips (polyamide 510) are heated to a molten state in a single-screw extruder after drying, and are ejected through the spinneret of the spinneret (the draw ratio of the spinneret is 80) to obtain primary silk;

[0112] (2), adopt side blowing (air temperature is 28 ℃) to cool and oil the as-spun silk, form polyamide fiber tow;

[0113] (3), make the polyamide fiber tow enter winding roll under the drive of two godet rollers (lower godet roller and upper godet roller) through spinning tunnel (length is 12m), by this winding roller pair The polyamide fiber tow is wound, the ambient temperature during winding is 18°C, the ambient humidity is 60%, and the winding speed of the winding roller is 1000m / min, finally forming a polyamide fiber package with a full volume ratio of 100 %. ...

Embodiment 2

[0115] Embodiment two: (POY)

[0116] The present embodiment provides a kind of production method of polyamide fiber package, specifically comprises the following steps:

[0117] (1), polyamide resin chips (polyamide 511) are heated to a molten state in a single-screw extruder after drying, and are ejected through the spinneret of the spinneret (the draw ratio of the spinneret is 200) to obtain primary silk;

[0118] (2), adopt side blowing (air temperature is 15 ℃) to cool and oil the as-spun silk, form polyamide fiber tow;

[0119] (3), make the polyamide fiber tow enter winding roll under the drive of two godet rollers (lower godet roller and upper godet roller) through spinning tunnel (length is 8m), by this winding roller pair The polyamide fiber tow is wound, the ambient temperature during winding is 25°C, the ambient humidity is 80%, and the winding speed of the winding roller is 4300m / min, finally forming a polyamide fiber package with a full volume ratio of 100 %. ...

Embodiment 3

[0121] Embodiment three: (FDY)

[0122] The present embodiment provides a kind of production method of polyamide fiber package, specifically comprises the following steps:

[0123] (1), polyamide resin chips (polyamide 513) are dried and heated to a molten state in a single-screw extruder, and ejected through the spinneret of the spinneret (the draw ratio of the spinneret is 120) to obtain primary silk;

[0124] (2), adopt ring blowing (air temperature is 20 ℃) ​​to cool as-spun silk, form polyamide fiber tow;

[0125] (3), make the polyamide fiber tow enter the winding room through the spinning tunnel (length is 10m), first pass through the first pair of hot rollers, wrap 8 turns, then pass through the second pair of hot rollers, wrap 6 turns, and draw The multiple is 3.5 times, the ambient temperature during winding is 20°C, the ambient humidity is 70%, and the winding speed of the winding roller is 4500m / min, finally forming a polyamide fiber package with a full volume ra...

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PUM

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Abstract

The invention provides a polyamide fiber package and a production method thereof. The production method comprises steps as follows: polyamide fiber bundles are wound, and the polyamide fiber package is obtained; the temperature of the environment of a winding roller during winding is 18-25 DEG C. According to the method, phenomenon of high probability of loosening, softening or edge subsiding of long-carbon-chain polyamide in production of winding molding can be avoided, so that stable production at different winding speeds can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of polyamide materials, and relates to a polyamide fiber package and a production method thereof. Background technique [0002] Polyamide fiber is one of the earliest synthetic fibers put into industrial production in the world, and it is also a main type of synthetic fiber. Polyamide fiber refers to a type of synthetic fiber whose main chains of fiber macromolecules are connected by amide bonds. There are many varieties of polyamide fibers, and the most widely used ones in industrial production and application are still polyamide 6 and polyamide 66. [0003] In addition to most of the general properties of general polyamides (such as wear resistance and compression resistance, lubricity, solvent resistance and ease of processing), long carbon chain polyamides also have high toughness and flexibility, excellent electrical properties and Unique properties such as wear resistance. Especially the fabric made ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H57/14B65H54/02D01F6/60D01F6/90D01F1/10C08G69/26C08G69/28
CPCB65H54/02B65H57/14B65H2701/3132C08G69/26C08G69/28D01F1/10D01F6/60D01F6/90
Inventor 孙朝续徐晓辰秦兵兵刘修才
Owner CATHAY R&D CENT CO LTD