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Thermochromic vinylon fibers and preparation method thereof

A thermochromic, vinylon fiber technology, applied in fiber processing, fiber chemical characteristics, light/infrared/X-ray fiber processing, etc. High degree, conducive to promotion and use, good effect

Active Publication Date: 2017-06-13
ZHEJIANG FENGHE TEXTILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems that the mechanical properties of the fiber are affected by the preparation of thermochromic vinylon by homogeneous mixing, and the service life of the thermochromic vinylon is easily affected by the effect of light, heat and washing after the finishing coating, the present invention provides a thermochromic vinylon fiber and its preparation method

Method used

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  • Thermochromic vinylon fibers and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0028] In this embodiment, the surface layer of a thermochromic vinylon fiber is coated with a low-temperature color-changing reversible thermochromic pigment (central particle diameter is 0.1 μm, commercially available). The preparation steps of the thermochromic vinylon fiber are as follows:

[0029] 1) Preparation of vinylon spinning solution: dissolving the washed polyvinyl alcohol slices in water at 90° C. to obtain vinylon spinning solution 1, the concentration of polyvinyl alcohol in the vinylon spinning solution 1 is 20% by weight;

[0030] 2) Spinning: The vinylon spinning liquid 1 output by the metering pump is sprayed out from the spinneret 2 and enters the spinning tunnel 3, and the industrial nitrogen carrying the low-temperature color-changing reversible thermochromic pigment enters the spinning tunnel from the air inlet 4 3. Blow out from the air outlet 5, and the vinylon spinning solution 1 from the spinning tunnel 3 is introduced into the coagulation bath 6 to ...

Embodiment 2

[0034] In this embodiment, the surface layer of a thermochromic vinylon fiber is coated with a hand-feeling color-changing reversible thermochromic pigment (central particle size is 1.0 μm, commercially available). The preparation steps of the thermochromic vinylon fiber are as follows:

[0035] 1) Preparation of vinylon spinning solution: dissolving the washed polyvinyl alcohol slices in water at 99° C. to obtain vinylon spinning solution 1. The weight percent concentration of polyvinyl alcohol in the vinylon spinning solution 1 is 25%;

[0036] 2) Spinning: The vinylon spinning liquid 1 output by the metering pump is sprayed out through the spinneret 2, and then enters the spinning tunnel 3, and the industrial nitrogen carrying the color-changing reversible thermochromic pigment enters the spinning tunnel through the air inlet 4 3. Blow out from the air outlet 5, and the vinylon spinning liquid 1 coming out of the spinning shaft 3 is introduced into the coagulation bath 6 to ...

Embodiment 3

[0040] In this embodiment, the surface layer of a thermochromic vinylon fiber is coated with a high-temperature color-changing reversible thermochromic pigment (central particle diameter is 0.5 μm, commercially available). The preparation steps of the thermochromic vinylon fiber are as follows:

[0041] 1) Preparation of vinylon spinning solution: dissolving the washed polyvinyl alcohol slices in water at 95°C to obtain vinylon spinning solution 1, the concentration of polyvinyl alcohol in the vinylon spinning solution 1 is 23% by weight;

[0042] 2) Spinning: The vinylon spinning liquid 1 output by the metering pump is sprayed out from the spinneret 2 and enters the spinning tunnel 3, and the industrial nitrogen carrying the high-temperature color-changing reversible thermochromic pigment enters the spinning tunnel from the air inlet 4 3. Blow out from the air outlet 5, and the vinylon spinning liquid 1 coming out of the spinning shaft 3 is introduced into the coagulation bath...

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Abstract

The invention discloses thermochromic vinylon fibers and a preparation method thereof. The surface layers of the thermochromic vinylon fibers are coated with reversible thermochromic pigments. The preparation method comprises steps as follows: 1), preparation of a vinylon spinning solution; 2), spinning; 3), postprocessing. A spinning channel and an ultraviolet radiation zone are added to common wet spinning equipment, under the carrying action of industrial nitrogen, the reversible thermochromic pigments are bonded to the surface of the vinylon spinning solution and rapidly mixed with polyvinyl alcohol on the surface layer of the vinylon spinning solution, uniform distribution and grafting immobilization of the reversible thermochromic pigments on the surface layers of vinylon fibers are realized under the actions of curing molding of the vinylon spinning solution, formalizing treatment and high-energy ultraviolet radiation, and vinylon fibers have the characteristics of good reversible thermochromic effect and high fastness.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a thermochromic vinylon fiber and a preparation method thereof. Background technique [0002] Vinylon is the trade name of polyvinyl acetal fiber. Its performance is close to that of cotton. It is known as "synthetic cotton". It is the most hygroscopic variety among existing synthetic fibers and has a wide range of applications. Thermochromic textiles have developed rapidly in recent years, and their products show different colors in different temperature environments, showing unprecedented interest. In addition to being interesting, thermochromic textiles also have the function of keeping warm and constant temperature. For example, when the temperature drops outdoors, the fabric will take on a dark color, which is good for absorbing sunlight energy to keep warm; when the temperature rises, the fabric will become light-colored or colorless, which is good for sunlight...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/06D01D10/00D01F6/50D01F1/04D06M13/127D06M10/00
CPCD01D5/06D01D10/00D01F1/04D01F6/50D06M10/001D06M13/127
Inventor 许云峰
Owner ZHEJIANG FENGHE TEXTILE CO LTD
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