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Two-component polyester sheath core compound fibre and production method

A composite fiber and two-component technology, applied in fiber processing, conjugated synthetic polymer artificial filament, filament/thread forming, etc., can solve the problem of insufficient vividness of disperse dyes, high refractive index of fiber matrix, and poor dyeing performance And other problems, to achieve the effects of significant impermeability, easy dyeing, and good fabric performance

Inactive Publication Date: 2007-02-14
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
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AI Technical Summary

Problems solved by technology

However, compared with natural fibers and other synthetic fibers, the dyeing performance is poor, and it can only be dyed with disperse dyes. Poor color development is its biggest shortcoming
The reasons for the poor color development of general polyester are: 1. The fiber matrix has a high refractive index, the surface is smooth, and light is easy to reflect on the fiber surface; 2. The disperse dye used in polyester dyeing is not bright enough.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] 1. Extrude 60-80% by weight (example 60%, 70%, 80%) of super-dull chips with a titanium dioxide content of 5-10% (example 5%, 6.35%, 10%) through the first component screw Extruder, the temperature of each zone of the extruder is between 280-295 degrees (for example, 280°C, 288°C, 295°C), so that it melts into a molten state, flows to the metering pump, and presses it into the component after metering, and distributes it in the component core component;

[0016] 2. 20~40% (example 40%, 30%, 20%) parts by weight of cationic dyeable polyester chips are passed through the second component screw extruder, and the temperature in each district of the extruder is between 280-295 degrees (example 280°C, 288°C, 295°C), make it melt into a molten state, flow to the metering pump, press it into the component after accurate metering, and distribute it into the leather component in the component; the cationic dyeable polyester chips are for A copolymer of phthalic acid, ethylene gl...

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PUM

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Abstract

The invention discloses bi-component polyester sheath core complex fiber and its producing method. The core is ultra complete extinction polyester with 5-10% titanium dioxide. The sheath is polyester with dye-ability cationic dyes. The method includes the following steps: putting the sheath and core respectively; distributing into assembly; mixing and extruding by nozzle plate; spinning. The invention uses cationic dyeable polyester to increase fabric dye-ability and color emissivity, titanium dioxide to improve fiber permeability resistance. The produced fiber which can be used to make swimming cloth has the advantages of good fabric performance, color emissivity, permeability resistance etc. The technology is simple and easy to operate.

Description

Technical field: [0001] The invention relates to a sheath-core conjugate fiber and a production method thereof. Background technique: [0002] Ordinary polyester has many characteristics such as high strength, superior mechanical properties, and easy processing. However, compared with natural fibers and other synthetic fibers, the dyeing performance is poor, and it can only be dyed with disperse dyes. Poor color development is its biggest shortcoming. The reasons for the poor color development of general polyester are: 1. The fiber matrix has a high refractive index, the surface is smooth, and light is easy to reflect on the fiber surface; 2. The disperse dyes used in polyester dyeing are not bright enough. Since 1930, various countries have devoted themselves to the development of polyester chips dyeable with cationic dyes. If cationic dyeable polyester chips are used, they can be dyed with cationic dyes at normal temperature and pressure. Invention content: [0003] T...

Claims

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Application Information

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IPC IPC(8): D01D5/34D01F1/02D01F8/14
Inventor 戴家欣卢瑜佐藤正幸
Owner TORAY FIBER RES INST(CHINA) CO LTD
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