Ultrafine fiber with high color fastness and manufacturing method thereof

A high color fastness, ultra-fine fiber technology, used in fiber processing, textiles and papermaking, conjugated synthetic polymer rayon, etc., can solve the problem of narrow selection of fiber materials, difficulty in processing and recycling, and large loss of raw materials. problems, to achieve the effect of improved color fastness and dyeing depth, excellent hand feel characteristics, and low cost

Inactive Publication Date: 2009-06-03
段宏伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of this method is too high, the selection of fiber materials is too narrow, and it also pollutes the environment
[0005] At present, most people produce colored microfibers by producing sea-island fibers and dyeing them, but there are certain problems in them. A large amount of industrial wastewater is produced. Due to the presence of a large number of relatively stable benzene rings in the wastewater, it is difficult to completely treat and recycle it in industry. If it is discharged once the treatment is not fully up to standard, it will have a negative impact on the environment; 2. Since the proportion of sea components in sea-island fibers is about 20%, about 20% of sea components must be dissolved to produce sea-island microfibers, so the loss of raw materials is relatively large, and the cost of raw materials for production is relatively high , uneconomical

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for manufacturing colored superfine fibers with high color fastness, the steps are as follows:

[0030] 1. Add 150 grams of Papilion Yellow S-4G and 20 grams of oxidized polyethylene wax to 1000 grams of polyethylene terephthalate with a melting point of 245 ° C to make a colored masterbatch;

[0031] 2. Dry 38 grams of colored masterbatch, 800 grams of polyethylene terephthalate, and 200 grams of polyamide 6 at 100°C, 70°C, and 160°C respectively to reduce the moisture content to 25-50PPM; The colored masterbatch is continuously added to 800 grams of polyethylene terephthalate through the color injection machine and mixed evenly;

[0032]3. Using twin-screw conjugate spinning machine, send polyethylene terephthalate with colored masterbatch to one screw extruder for melting, and send polyamide 6 to another screw extruder for extrusion Melting in the machine, using conjugate spinning, the two melts are sent to the composite spinning box through their respectiv...

Embodiment 2

[0037] A kind of manufacture method of high color fastness black superfine fiber, its step is as follows:

[0038] 1. Add 300 grams of carbon black and 30 grams of polyethylene wax to 1000 grams of polyethylene terephthalate with a melting point of 250 ° C to make a black masterbatch;

[0039] 2. Dry 40 grams of colored masterbatch, 700 grams of polyethylene terephthalate, and 300 grams of polyamide 6 at 90°C, 70°C, and 170°C respectively to reduce the moisture content to 25-50PPM. The dried black masterbatch is continuously added to 700 grams of polyethylene terephthalate through the color injection machine and mixed evenly;

[0040] 3. Adopt twin-screw conjugate spinning machine, send polyethylene terephthalate with black masterbatch to one screw extruder for melting, and send polyamide 6 to another screw extruder for extrusion Melting in the machine; the two melts are sent to the composite spinning box through their respective pipelines and boxes, and the primary black com...

Embodiment 3

[0045] A kind of manufacture method of colored superfine fiber with high color fastness, its steps are as follows:

[0046] 1. Add 150 grams of Papilion Blue S-GL and 20 grams of oxidized polyethylene wax to 1000 grams of polyethylene terephthalate with a melting point of 245 ° C to make colored masterbatches;

[0047] 2. Dry 38 grams of colored masterbatch, 800 grams of polyethylene terephthalate, and 200 grams of polyamide 6 at 100°C, 70°C, and 160°C respectively to reduce the moisture content to 25-50PPM; The colored masterbatch is continuously added to 800 grams of polyethylene terephthalate through the color injection machine and mixed evenly;

[0048] 3. Using a twin-screw conjugate spinning machine, the polyethylene terephthalate with colored masterbatch is sent to a screw extruder for melting, and the dried polyamide 6 is sent to another screw The two melts are melted in the extruder; the two melts are sent to the composite spinning box through their respective pipeli...

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Abstract

The invention relates to ultrafine fiber with high color fastness and a manufacturing method thereof. The method comprises the steps of adding 3-40% coloring agent into a polymer powder to make into colored stock particles; adding the colored stock particles into spinning polymer polyester and/or polyamide in a ratio of 0.2-15%, and mixing; melt extruding the spinning polymer with a conjugate spinning machine, and coiling to obtain colored POY composite fiber; stretching and false-twist texturing to obtain colored fiber with high color fastness; and splitting with a basic hydrolysis method to obtain colored ultrafine fiber with high color fastness. The colored ultrafine fiber with high color fastness has excellent handfeel and color fastness to washing and light, and contains mass-colored dyeing components, so as to dispense with dyeing after being made into a textile. The colored ultrafine fiber has the advantages of simple process, low cost, low pollution, small product color difference, good color fastness, low fading liability, wide color spectra, and vivid and bright color.

Description

technical field [0001] The invention belongs to the technical field of chemical fibers, and relates to a production method for producing superfine fibers by conjugate spinning, in particular to a colored superfine fiber with high color fastness and a production method. Background technique [0002] At present, the manufacturing methods of superfine fiber filaments mainly include the following types: direct spinning method, polyester-nylon conjugate spinning method, stripping conjugate spinning method and multi-layer conjugate spinning method. Microfiber is a high-tech fiber with high added value, which has many uses. As medium and high-end clothing fabrics, microfibers are mainly used for imitation silk, imitation buckskin, imitation jeanette, combed wool-like fabric, high-density fabric, synthetic leather base cloth, and efficient cleaning cloth. In recent years, the application of microfibers in furniture, decorative materials and industrial textiles has also made great p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/12D01F1/04D01F1/06D01D5/30D01D5/253D02G1/02
Inventor 段宏伟邢立华罗根利
Owner 段宏伟
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