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Fluorescent acrylic fiber and preparation method of same

A technology of acrylic fiber and preparation process, applied in fiber treatment, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of poor fluorescence fastness, unsatisfactory fluorescence effect, low utilization rate of fluorescent powder, etc., and achieve high effective utilization rate , Good fluorescence fastness, good fluorescence effect

Active Publication Date: 2017-07-04
南京凯莱智能纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of poor fluorescence fastness, low utilization rate of fluorescent powder and unsatisfactory fluorescent effect of the current fluorescent acrylic fiber, the present invention provides a fluorescent acrylic fiber and its preparation process

Method used

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  • Fluorescent acrylic fiber and preparation method of same

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this embodiment, a fluorescent acrylic fiber is composed of a core layer and a skin layer, the core layer is polyacrylonitrile, and the skin layer is a mixture of fluorescent powder and polyacrylonitrile. Among them, the number average molecular weight of polyacrylonitrile is about 35000, and the fluorescent powder is the powder obtained by milling barium magnesium aluminate activated by europium to 20000 mesh by mechanical ball mill.

[0029] The preparation steps of the fluorescent acrylic fiber of the present embodiment are as follows:

[0030] 1) Preparation of acrylic fiber spinning stock solution: dissolving polyacrylonitrile prepared by solution polymerization in dimethylformamide and degassing and filtering to obtain acrylic fiber spinning stock solution 1; polyacrylonitrile in acrylic fiber spinning stock solution The weight ratio concentration is 28%;

[0031] 2) Spinning: After the acrylic fiber spinning stock solution 1 output by the metering pump is spr...

Embodiment 2

[0035] In this embodiment, a fluorescent acrylic fiber is composed of a core layer and a skin layer, the core layer is polyacrylonitrile, and the skin layer is a mixture of fluorescent powder and polyacrylonitrile. Among them, the number-average molecular weight of polyacrylonitrile is about 45000, and the fluorescent powder is the powder obtained by milling europium-activated yttrium oxide to 25000 mesh with a mechanical ball mill.

[0036] The preparation steps of the fluorescent acrylic fiber of the present embodiment are as follows:

[0037] 1) Preparation of acrylic fiber spinning stock solution: dissolving polyacrylonitrile prepared by solution polymerization in dimethylformamide and degassing and filtering to obtain acrylic fiber spinning stock solution 1; polyacrylonitrile in acrylic fiber spinning stock solution The weight ratio concentration is 33%;

[0038] 2) Spinning: After the acrylic fiber spinning stock solution 1 output by the metering pump is sprayed out from ...

Embodiment 3

[0042] In this embodiment, a fluorescent acrylic fiber is composed of a core layer and a skin layer, the core layer is polyacrylonitrile, and the skin layer is a mixture of fluorescent powder and polyacrylonitrile. Among them, the number-average molecular weight of polyacrylonitrile is about 40,000, and the fluorescent powder is a powder obtained by ball milling terbium-activated aluminate to 23,000 mesh with a mechanical ball mill.

[0043] The preparation steps of the fluorescent acrylic fiber of the present embodiment are as follows:

[0044] 1) Preparation of acrylic fiber spinning stock solution: dissolving polyacrylonitrile prepared by solution polymerization in dimethylformamide and degassing and filtering to obtain acrylic fiber spinning stock solution 1; polyacrylonitrile in acrylic fiber spinning stock solution The weight ratio concentration is 30%;

[0045] 2) Spinning: After the acrylic fiber spinning stock solution 1 output by the metering pump is sprayed out thr...

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Abstract

The invention discloses a fluorescent acrylic fiber and a preparation method of same. The fluorescent acrylic fiber is composed of a core layer and a skin layer, wherein the core layer is polyacrylonitrile and the skin layer is a mixture of fluorescent powder and polyacrylonitrile. The preparation method includes the steps of: 1) preparing an acrylic fiber spinning raw solution; 2) spinning the acrylic fiber; and 3) feeding oil and collecting the acrylic fiber. In the method, with the carrying effect of hot nitrogen gas, the fluorescent powder is adhered to the surface of the acrylic fiber spinning raw solution and then is quickly mixed with the polyacrylonitrile on the surface layer of the acrylic fiber spinning raw solution, so that with solidification and shaping of the acrylic fiber spinning raw solution, the fluorescent powder is fixed on the surface layer of the acrylic fiber, so that the fluorescent acrylic fiber having a core-skin structure is produced. The fluorescent acrylic fiber is independent of effect of a binder, wherein the fluorescent powder is distributed on the surface of the acrylic fiber, so that the product has high fluorescence fastness and fluorescent effect. In addition, the fluorescent powder is high in effective utilization rate, so that production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of chemical fibers, and in particular relates to a fluorescent acrylic fiber and a preparation process thereof. Background technique [0002] Acrylic fiber has a fluffy appearance, soft hand feeling, good light resistance, weather resistance, elasticity and warmth retention, and is known as "artificial wool". Among the raw materials used in wool spinning and artificial fur in my country, acrylic fibers occupy the most important position. The excellent properties of acrylic fiber make it widely used in the three major fields of clothing, apparel and industry. Acrylic fibers can be spun purely or blended with natural fibers according to different application requirements, or woven into blankets, carpets, etc., and can also be blended with cotton, rayon, and other synthetic fibers to be woven into various clothing materials and indoor products. [0003] Fluorescent textiles make the color of the fabric more n...

Claims

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Application Information

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IPC IPC(8): D01F6/54D01F1/10D01F11/06D01D5/34D01D5/04D01D11/00
CPCD01D5/04D01D5/34D01D11/00D01F1/10D01F6/54D01F11/06
Inventor 许云峰
Owner 南京凯莱智能纺织科技有限公司
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