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Photochromic Composite Fiber

A composite fiber, photochromic technology, applied in the direction of fiber processing, fiber chemical characteristics, conjugated synthetic polymer rayon, etc., can solve the problems of easy decolorization, poor weather resistance, low color fastness, etc., to improve spinning The effect of speed and fiber strength, strong weather resistance, excellent mechanical properties

Active Publication Date: 2021-09-14
TIANJIN UVOS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of existing composite fibers such as poor weather resistance, low color fastness, and easy decolorization, and to provide a photochromic composite fiber

Method used

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  • Photochromic Composite Fiber
  • Photochromic Composite Fiber
  • Photochromic Composite Fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] (1) The skin layer material is made of polyethylene terephthalate for drying and crystallization, the drying temperature is 200°C, so that the moisture content after drying is less than 30ppm, and then add 2% of the airtightness enhancer diisopropyl oxide according to the mass ratio , 0.5% flame retardant, and 0.4% softener are evenly mixed to obtain the leather layer material.

[0104] (2) Carry out drying and crystallization of the core material polypropylene, the drying temperature is 200°C, so that the moisture content after drying is less than 30ppm, and then add 5% of photochromic dye, 0.5% of dispersant, and 0.12% of coupling agent according to the mass ratio, 0.3% heat stabilizer, 0.09% antioxidant, 1% sensitizer, after mixing evenly, the core layer material can be obtained.

[0105] (3) Carry out spinning through the process of melt spinning, adjust the temperature of each zone of the torque rheometer and the screw extruder, wherein the screw temperature of the...

Embodiment 2

[0111] (1) The skin layer material polypropylene is dried and crystallized so that the moisture content after drying is less than 50ppm, and then the air tightness enhancer polyethylene naphthalate 1%, flame retardant 0.2%, and softener are added according to the mass ratio 0.04% can be obtained after mixing evenly.

[0112] (2) Dry and crystallize the core material polyethylene, so that the moisture content after drying is less than 50ppm, and then add 5% of photochromic dye, 0.2% of dispersant, 0.02% of coupling agent, and 0.03% of heat stabilizer according to the mass ratio , 0.01% of antioxidant, 0.1% of sensitizer, the core layer material can be obtained after mixing evenly.

[0113] (3) Spin through the process of melt spinning, adjust the temperature of each zone of the torque rheometer and the screw extruder, respectively extrude the core material and the skin layer material with photochromic dye, and then pass through the melt distribution pipe The mass ratio of the ...

Embodiment 3

[0118] (1) Dry and crystallize polycaprolactam as the skin layer material so that the moisture content after drying is less than 50ppm, then add 1% air tightness enhancer and 0.3% softener according to the mass ratio and mix evenly to obtain the skin layer material.

[0119] (2) Dry and crystallize the low-melting point polyester as the core material, so that the moisture content after drying is less than 50ppm, and then add 8% of photochromic dye, 0.4% of dispersant, 0.11% of coupling agent, and heat stabilizer according to the mass ratio 0.2%, 0.07% antioxidant, 2% sensitizer, after mixing evenly, the core layer material can be obtained.

[0120] (3) Spin through the process of melt spinning, adjust the temperature of each zone of the torque rheometer and the screw extruder, respectively extrude the core material and the skin layer material with photochromic dye, and then pass through the melt distribution pipe The metering is to control the mass ratio of the skin layer to t...

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Abstract

The invention provides a photochromic composite fiber, which includes a skin layer and a core layer, the skin layer is a fiber-forming polymer, and an appropriate flame retardant, a softening agent and an airtightness enhancer are added, and the core layer is a thermoplastic fiber-forming polymer substances, and add photochromic dyes, antioxidants, spinning aids, thermal stabilizers, and sensitizers in a certain proportion. The fiber is doped with photochromic materials and functional additives in the core material, and then a skin-core composite structure is constructed by melt spinning, and the core layer is encapsulated with a skin layer containing functional additives, thereby improving the optical properties of the core material. The stability of the chromogenic material is higher than 4000μW / cm in ultraviolet light 2 , temperature 40°C, accelerated aging test under normal humidity conditions, its discoloration ability can be maintained for 70‑110 hours, and it has excellent photochromic properties, fast response time, strong repeatability, long service life, and excellent mechanical properties.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a photochromic composite fiber. Background technique [0002] The advancement of social productivity and the rapid development of science and technology have put forward higher requirements for the traditional performance of textiles, and at the same time there are more and more demands for the functionality of textiles. Traditional functional fibers can no longer meet people's needs for comfort and functionality, and photochromic fibers have emerged as the times require. Photochromic fibers have unique visual effects, which can not only meet consumers' pursuit of novelty, diversity and change in clothing colors, but also can be widely used in anti-counterfeiting, advertising, military camouflage and other fields. The principle of photochromic fiber is mainly divided into two types: one is to use liquid crystal spinning to make fiber, which contains liquid crystal structure, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/14D01F8/06D01F1/10D01F1/06D01F8/12D01D5/34
CPCD01D5/34D01F1/06D01F1/10D01F8/06D01F8/12D01F8/14
Inventor 李伟吴边鹏李浩铭边俊民
Owner TIANJIN UVOS TECH CO LTD
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