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A kind of hygroscopic cationic dyeable polyester fiber and its preparation method

A polyester fiber and cationic technology, applied in the field of hygroscopic cationic dyeable polyester fiber and its production, can solve the problems of poor hand feeling, poor light resistance, and strength drop

Inactive Publication Date: 2016-11-30
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the hygroscopic compound is attached to the surface of the cationic dyeable fiber, there are problems such as gradual decrease in strength, poor hand feeling, and poor light resistance during use.

Method used

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  • A kind of hygroscopic cationic dyeable polyester fiber and its preparation method
  • A kind of hygroscopic cationic dyeable polyester fiber and its preparation method
  • A kind of hygroscopic cationic dyeable polyester fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Polyvinylpyrrolidone (PVP) with a K value of 30, bis(2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate and cationic dyeable polyester with a melting point of 230°C are extruded on two shafts On-machine blending and extrusion (φ44mm, L / D:52), in which the amount of PVP added accounts for 3wt% of the polyester fiber, and the amount of diphosphate added is equivalent to 150ppm of the polyester fiber in terms of phosphorus. The temperature of the extruder was set at 245°C in the melting section and 200°C in the kneading section, and the extrusion condition was good. The average dispersion diameter of PVP in the obtained blend was 80nm. The obtained blend is melt-spun at a spinning temperature of 255° C. and a spinning speed of 2500 m / min to obtain as-spun fibers, and then the as-spun fibers are stretched 2.2 times to obtain polyester fibers. After testing, the average dispersion diameter of PVP in the obtained polyester fiber is 80nm, the hygroscopicity paramet...

Embodiment 2～4

[0056] The amount of PVP added relative to the polyester fiber was changed to 5wt%, 10wt%, and 15wt%, and the others were the same as in Example 1. There was no problem in mixing and spinning, and the specific results are shown in Table 1.

Embodiment 5～8

[0062] Fixing is 7wt% relative to the addition of polyester fiber PVP, and changes the addition of two (2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate in terms of P elements relative to the polyester fiber as 50ppm, 250ppm, 350ppm, 450ppm, other with embodiment 1. There was no problem in mixing and spinning, and the specific results are shown in Table 2.

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Abstract

The invention discloses a hygroscopic cationic dyeable polyester fiber and a production method thereof. The polyester fiber mainly contains cationic dyeable polyester, polyvinylpyrrolidone hygroscopic components and a phosphorus heat stabilizer. When blending polyvinylpyrrolidone and cationic polyester, use a two-screw extruder with an L / D of 45 or more for low-temperature blending, and obtain polyester fibers by low-temperature spinning. When added, the polyester fiber finally obtained has good and durable hygroscopicity, good color tone of the fiber, and excellent light fastness, and can be used for underwear or sports clothing.

Description

technical field [0001] The invention relates to a hygroscopic cationic dyeable polyester fiber and a production method thereof. Specifically, a hygroscopic cationic dyeable polyester fiber that can be applied to clothing materials such as underwear and sportswear is obtained by adding a hygroscopic component and a phosphorus heat stabilizer to the cationic dyeable polyester. Background technique [0002] Cationic dyeable polyester fiber is a typical thermoplastic synthetic fiber. Since its invention, it has been widely used in clothing and industry due to its excellent mechanical strength, chemical resistance and heat resistance. [0003] However, the hygroscopicity and desorption of cationic dyeable polyester fibers are extremely low, and they cannot discharge sweat in time when they are in direct contact with the skin or worn close to the skin, resulting in a sticky feeling, which limits the use of cationic dyeable polyester fibers in underwear. on development. [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10D01D5/08
Inventor 樊姚姚范志恒望月克彦
Owner TORAY FIBER RES INST(CHINA) CO LTD