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A moisture-absorbing and quick-drying stock solution colored fiber and its preparation method

A dope coloring, moisture absorption and quick-drying technology, applied in fiber treatment, melt spinning, stretch spinning, etc., can solve the problems of spinning performance deterioration, poor fabric comfort, poor compatibility, etc., to achieve good comfort, High color fastness and uniform color effect

Active Publication Date: 2020-04-10
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a method for preparing moisture-absorbing and quick-drying dope-colored fibers and a moisture-absorbing and quick-drying dope-colored fiber, so as to solve the problem in the prior art that the dope-colored melt has poor compatibility with the colorant carrier and causes the spinning performance to deteriorate and the problem of poor fabric comfort due to the hydrophobic properties of dope-dyed fibers

Method used

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  • A moisture-absorbing and quick-drying stock solution colored fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The colorant C.I. Solvent Red 138 and polyethylene glycol with a molecular weight of 4000 are added to a screw extruder at a weight ratio of 40:60 and melted and mixed at 80°C to obtain a colorant C.I. Solvent Red 138 with a content of 40wt%. .

[0043] The ethylene terephthalate oligomer with a polymerization degree of 5 from the esterification system is injected with the above-mentioned slurry and 0.05 wt% antimony catalyst equivalent to 10 wt% of its mass, and the material is homogenized by high shear After the pump is mixed evenly, it enters the pre-condensation system for pre-condensation reaction. The temperature of the pre-condensation reaction is 265°C and the reaction time is 90 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.28dL / g.

[0044] The above-mentioned colored prepolymer is filtered through a prepolymer filter and enters a final polycondensation system for final polycondensation reaction. The final polycondensation reaction tem...

Embodiment 2

[0047] Add colorant C.I. solvent blue 83 and polytetramethylene glycol with a molecular weight of 6000 to a screw extruder at a weight ratio of 30:70 and melt and mix at 100°C to obtain colorant C.I. solvent blue 83 with a content of 30wt%. .

[0048] Inject the above-mentioned color paste and 0.1wt% titanium series catalyst equivalent to 15wt% of its mass into the butylene terephthalate oligomer with a polymerization degree of 4 from the esterification system, and the material is homogenized by high shear After the pump is mixed evenly, it enters the pre-condensation system for pre-condensation reaction. The temperature of the pre-condensation reaction is 245°C and the reaction time is 40 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.35dL / g.

[0049] The above-mentioned colored prepolymer is filtered through the prepolymer filter and enters the final polycondensation system for final polycondensation reaction. The final polycondensation reaction temp...

Embodiment 3

[0052] The colorant C.I. Solvent Yellow 167 and polypropylene glycol with a molecular weight of 3000 were added to a screw extruder at a weight ratio of 30:70 and melted and mixed at 60°C to obtain a colorant C.I. Solvent Yellow 167 with a content of 30wt%.

[0053] Inject the propylene glycol terephthalate oligomer with a polymerization degree of 3 from the esterification system into the above-mentioned color paste equivalent to 8 wt% of its mass and 0.2 wt% of titanium-based catalyst, and the materials are mixed by a high-shear homogenizing pump After uniformity, enter the precondensation system for precondensation reaction. The temperature of the precondensation reaction is 240° C. and the reaction time is 75 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.35 dL / g.

[0054] The above-mentioned colored prepolymer is filtered through a prepolymer filter and enters a final polycondensation system for final polycondensation reaction. The final polycondens...

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Abstract

The invention belongs to the technical field of spinning, and particularly relates to a moisture absorption quick-dry stock solution spun-dyed fiber and a preparation method thereof. The preparation method comprises the following steps: (1) feeding a coloring agent and a hydrophilic modifier into a screw extruder, and fusing and mixing in the screw extruder to obtain color paste; (2) injecting thecolor paste into a polyester low polymer pipeline, uniformly mixing with a polyester low polymer from an esterification system, then feeding the mixture into a polycondensation system, and performingpre-polycondensation reaction and final polycondensation reaction to obtain a colored polyester melt; (3) spinning and molding the obtained colored polyester melt with a profiled-section spinneret plate to obtain the moisture absorption quick-dry stock solution spun-dyed fiber. By adopting the moisture absorption quick-dry stock solution spun-dyed fiber and the preparation method thereof, the compatibility problem between a hydrophilic agent and a polyester material is solved effectively; in conjunction with the special-shaped treatment of a fiber section, the polyester fiber prepared in accordance with the method disclosed by the invention has excellent moisture absorption quick-dry properties, high color uniformity, high color fastness and high comfort.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a moisture-absorbing and quick-drying stock solution colored fiber and a preparation method thereof. Background technique [0002] Polyester fiber has the advantages of high breaking strength, stable shape, good crispness, anti-wrinkle and non-ironing, easy to wash and dry, and is an ideal textile fiber. However, due to the good linear state of the polyester molecule, there are no large side chains and branched chains on the molecular chain, and after being stretched and shaped during the spinning process, the molecules are arranged neatly, with high crystallinity, good orientation, and intermolecular gaps. Small, dyes are not easy to penetrate; there are no hygroscopic groups such as hydroxyl and amino groups on the macromolecular chain, only ester groups with less polarity; these structural characteristics also bring poor dyeability, low hygroscopicity, and fabric ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/86C08G63/672D01D5/08D01D5/12D01D5/253D01D10/02D02G1/02D02J1/22D02J13/00
CPCC08G63/672D01D5/08D01D5/12D01D5/253D01D10/02D01F6/86D02G1/0206D02J1/22D02J13/00
Inventor 邱志成李鑫金剑廉志军李志勇赵亮
Owner CHINESE TEXTILE ACAD
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