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Easy-to-dye sea island PTT filament and preparation method thereof

An island and filament technology, applied in filament/line forming, conjugated synthetic polymer rayon, stretch spinning, etc., can solve the problem of uneven color effect of fabrics, high difficulty in process control, and inconsistent dyeing grades. higher question

Pending Publication Date: 2018-06-12
SUZHOU LONGJIE SPECIAL FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, it is also necessary to overcome a series of shortcomings such as insufficient content uniformity of sea-island PTT fibers produced by general blending, low dyeing grade, large elongation unevenness, uneven color effect of fabrics, and high degree of difficulty in process control.

Method used

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  • Easy-to-dye sea island PTT filament and preparation method thereof
  • Easy-to-dye sea island PTT filament and preparation method thereof
  • Easy-to-dye sea island PTT filament and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0100] A sea-island PTT filament that is easy to dye: COPET slices are used as the sea component, and PTT slices and copolyamide masterbatch are used as the island component;

[0101] In the island component, the mass fraction of the copolyamide masterbatch to PTT is 2% to 8%;

[0102] Among them, the copolyamide is first polycondensed from dibasic acid and diamine to make polyamide, and then sulfonate is added to form copolyamide with sulfonic acid groups;

[0103] Wherein the polycondensation process is as follows, using purified terephthalic acid and hexamethylenediamine as basic raw materials, using phosphorous acid and triphenyl phosphate as catalysts, adding a small amount of antioxidant 1010, and pre-condensing, when the reaction reaches 2 hours At this time, from the perspective of stirring power, the viscosity of the system has increased, and at this time, three monomers of bishydroxyethyl isophthalate-5-sodium sulfonate (SIPE) are added. Its reaction formula can be ...

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Abstract

The invention aims to provide an easy-to-dye sea island PTT filament. COPET slices are used as sea components, and PTT slices and copolyamide master batches are used as island components, wherein in the island components, the copolyamide master batches account for 2-8% of PTT by mass; as for copolyamide, first, binary acid and diamine are subjected to condensation polymerization to prepare polyamide, then sulfonate is added, and the copolyamide with sulfonic acid groups is formed. The elongation irregularity of the filament can be controlled below 4%, the utilization rate of dyeing is increased by 29% and increased to 42.6%, the dyeing time is shortened by 15 minutes, the reduction amplitude reaches 37.5%, meanwhile, discharged wastewater can be reduced, resources are saved, and environmental friendliness is realized. The adverse factors of high dyeing cost, high usage amount of dye, poor color fastness of finished products, and influences on the environment in the existing sea islandfilament production are avoided.

Description

technical field [0001] The invention relates to the technical field of chemical fibers, in particular to an easy-to-dye sea-island PTT filament and a preparation method thereof. Background technique [0002] As the achievements of reform and opening up are getting bigger and bigger, the quality of life of the people is improving faster and faster, and people are increasingly yearning for a better life. Everyone's demand for high-quality products is also becoming more and more extensive. With the continuous development of social needs With the development, the demand for textiles with excellent performance is also increasing. At the same time, for the diversity of colors, we also need fabrics to be dyed brightly, which can reflect liveliness and velvet, and reflect the nobility and elegance of clothing. In addition, in terms of wearing performance, it is also necessary to reflect the demand for elasticity, so that the wearing is more comfortable, close-fitting, non-folding, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/12D01F8/14C08G69/28C08G69/26C08G69/48D01D5/088D01D5/16D01D5/36
CPCD01D5/088D01D5/16D01D5/36D01F8/12D01F8/14C08G69/26C08G69/28C08G69/48
Inventor 关乐刘虎易何小林邹凯东郑志刚
Owner SUZHOU LONGJIE SPECIAL FIBER
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