Preparation method of noctilucent fibers capable of emitting red light in darkness

A technology of luminous fiber and red light, applied in the field of preparation of luminous fiber

Active Publication Date: 2015-06-03
扬州江辉纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far there is no report on the use of SrAl 2 o 4 :Eu 2+ , Dy 3+

Method used

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  • Preparation method of noctilucent fibers capable of emitting red light in darkness
  • Preparation method of noctilucent fibers capable of emitting red light in darkness
  • Preparation method of noctilucent fibers capable of emitting red light in darkness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Provide a kind of preparation method of the luminous fiber that can emit red light in the dark, comprise steps are:

[0022] (1) Preparation of light conversion agent:

[0023] Add 1 part of 3-hydroxy-N,N-dimethylaniline into a container containing 30 parts of deionized water, stir (stirring speed 500 rpm), and add 1 part of 2-hydroxybenzaldehyde under gradual heating conditions , when the temperature rises to 50°C, add 0.02 parts of anhydrous zinc chloride and H 2 SO 4 0.02 parts. Seal the container and react for 18 hours at a constant temperature of 50°C with stirring. Open the container and stir constantly to evaporate the water. Finally, it was dried at 110° C. for half an hour to obtain a light conversion agent.

[0024] (2) Preparation of luminous particles:

[0025] 0.1 part of photoconversion agent prepared in step 1 and SrAl 2 o 4 :Eu 2+ , Dy 3+ 5 parts and 20 parts of polyethylene terephthalate were mixed, melted and granulated to make luminous par...

Embodiment 2

[0028] Provide a kind of preparation method of the luminous fiber that can emit red light in the dark, comprise steps are:

[0029] (1) Preparation of light conversion agent:

[0030] Add 3 parts of 3-hydroxy-N,N-dimethylaniline into a container containing 40 parts of deionized water, stir (stirring speed 550 rpm), and add 3 parts of 2-hydroxybenzaldehyde under gradual heating conditions , when the temperature rises to 50°C, add 0.07 parts of anhydrous zinc chloride and H 2 SO 4 0.07 parts. Seal the container, and react at a constant temperature of 50° C. with stirring for 19 hours. Open the container and stir constantly to evaporate the water. Finally, it was dried at 110° C. for half an hour to obtain a light conversion agent.

[0031] (2) Preparation of luminous particles:

[0032] 0.15 part of the light conversion agent prepared in step (1) was mixed with SrAl 2 o 4 :Eu 2+ , Dy 3+ 7 parts and 26 parts of polycaprolactam were mixed, melted and granulated to make...

Embodiment 3

[0035] Provide a kind of preparation method of the luminous fiber that can emit red light in the dark, comprise steps are:

[0036] (1) Preparation of light conversion agent:

[0037] Add 7 parts of 3-hydroxy-N,N-dimethylaniline into a container containing 50 parts of deionized water, stir (stirring speed 600 rpm), and add 7 parts of 2-hydroxybenzaldehyde under gradual heating conditions , when the temperature rises to 50°C, add 0.1 parts of anhydrous zinc chloride and H 2 SO 4 0.1 part. Seal the container and react at a constant temperature of 50° C. with stirring for 20 hours. Open the container and stir constantly to evaporate the water. Finally, it was dried at 110° C. for half an hour to obtain a light conversion agent.

[0038] (2) Preparation of luminous particles:

[0039] Mix 0.2 parts of the light conversion agent prepared in step (1) with SrAl2O4:Eu2+, 10 parts of Dy3+, and 30 parts of polypropylene to make luminescent particles.

[0040] (3) Baking and drying...

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Abstract

The invention discloses a preparation method of noctilucent fibers capable of emitting red light in darkness. The preparation method comprises the following steps: mixing 2-hydroxybenzaldehyde with 3-hydroxyl-N,N-dimethylaniline which can be dissolved in water to obtain a mixture, heating the mixture, mixing the mixture with anhydrous zinc chloride and sulfuric acid to obtain a mixture I, and carrying out the reaction on the mixture I to obtain a light conversion agent; mixing the light conversion agent with SrAl2O4:Eu<2+>, Dy<3+> and a fiber forming polymer base material to obtain a mixture II, smelting the mixture II, and granulating to obtain noctilucent particles for spinning; and drying the noctilucent particles, then smelting the noctilucent particles and spinning to obtain the noctilucent fibers. The red light emitted by the noctilucent fibers prepared by adopting the preparation method can be maintained for more than ten hours, the highest luminance can reach 3.0cd/m<2>, the emitted red light is one of three basic colors, and the noctilucent fibers can be compounded with one or two of blue light noctilucent fibers and green light noctilucent fibers to prepare luminous colorful noctilucent fibers, so that the important significance can be realized.

Description

technical field [0001] The invention relates to the field of processing and manufacturing of functional textile fibers, in particular to a preparation method of a luminous fiber capable of emitting red light in a dark place. Background technique [0002] Luminous fiber is a new type of fiber that can emit light at night or in the dark. Because of its excellent luminous performance, it has been widely used in recent years. The main application fields include construction and decoration, transportation, night operations, navigation and aviation, etc. In 1998, a German company developed a luminous fiber that uses fiber as a substrate to emit green light under ultraviolet light. In 2002, two companies in the United States developed luminous fibers. Since 2000, Japanese researchers have successively developed skin-core luminous fibers, using luminescent materials as core components (or shell components) and polyester fibers as shell components (or core components). At present, ...

Claims

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Application Information

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IPC IPC(8): D01F1/10D01F6/92D01F6/90D01F6/46C09K11/64
Inventor 葛明桥
Owner 扬州江辉纺织科技有限公司
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