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Luminescent plant fiber and preparation method thereof

A plant fiber and fiber technology, which is applied in the field of preparation of luminescent plant fibers, can solve the problems of no environmental protection performance and non-degradability, and achieve the effects of good papermaking performance, uniform distribution and good luminous performance.

Active Publication Date: 2017-01-11
广州市华年新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fluorescent fibers prepared by the above-mentioned fluorescent fiber preparation methods are all chemical fibers, which are not degradable and do not have environmental protection performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The experimental raw material is softwood fiber in virgin cellulose fiber.

[0020] The organic fluorescent substance N-phenyl-1-naphthylamine-8-sulfonic acid (belonging to aromatic hydrocarbon substitutes) was dissolved in petroleum ether solvent to prepare an organic fluorescent solution with a mass concentration of 0.5%.

[0021] The coniferous wood fiber is refined to obtain a coniferous wood fiber with a beating degree of 20°SR; the coniferous wood fiber is air-dried to remove moisture in the fiber; the air-dried coniferous wood fiber is immersed in an organic fluorescent solution with a concentration of 0.5% for 30min, The dipping process uses magnetic stirring at low speed; the coniferous wood fiber is taken out and filtered; the filtered coniferous wood fiber is placed in a vacuum drying oven for drying at a drying temperature of 40°C; and the luminescent plant fiber is obtained after drying.

[0022] The luminescent plant fiber prepared in this example was obse...

Embodiment 2

[0024] The experimental raw material is softwood fiber in virgin cellulose fiber.

[0025] The organic fluorescent substance 4-methylumbelliferone (belonging to carbonyl compounds) was dissolved in dimethylformamide solvent to prepare an organic fluorescent solution with a mass concentration of 20%.

[0026] Refining the coniferous wood fibers to obtain coniferous wood fibers with a beating degree of 35°SR; placing the coniferous wood fibers in an oven at 30°C to dry the moisture in the fibers; impregnating the dried coniferous wood fibers in a concentration of 20% organic fluorescent solution for 15 minutes, without magnetic stirring during the impregnation process; take out the coniferous wood fibers and filter; place the filtered coniferous wood fibers in a vacuum drying oven for drying at a drying temperature of 80°C; obtain luminescence after drying plant fibres.

[0027] The luminescent plant fiber prepared in this example is observed under an ultraviolet lamp with a wa...

Embodiment 3

[0029] The experimental raw material is hardwood fiber in virgin cellulose fiber.

[0030] The organic fluorescent substance Hoechst fluorescent dye 33258 (a five-membered heterocyclic compound) was dissolved in dimethyl sulfoxide solvent to prepare an organic fluorescent solution with a mass concentration of 10%.

[0031] Refining the hardwood fibers to obtain hardwood fibers with a beating degree of 25°SR; placing the hardwood fibers in an oven at 50°C to dry the moisture in the fibers; impregnating the dried hardwood fibers in a mass concentration of 10% organic fluorescent solution for 20 minutes, using magnetic stirring during the impregnation process; take out the hardwood fiber and filter it; place the filtered hardwood fiber in a vacuum drying oven for drying at a drying temperature of 60°C; get a luminescent plant after drying fiber.

[0032] The luminescent plant fiber prepared in this example was observed under an ultraviolet lamp with a wavelength of 365 nm, and t...

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Abstract

The invention discloses a luminous plant fiber and a preparation method thereof, and belongs to the technical field of anti-counterfeiting fluorescent fibers. The preparation method comprises the following steps: impregnating the pretreated plant fiber in an organic fluorescent solution; and filtering and drying the taken impregnated plant fiber to obtain the luminous plant fiber, wherein the plant fiber comprises a native cellulose fiber, a regenerated cellulose fiber or a recycled fiber; in the organic fluorescent solution, a solute is an organic fluorescent substance, and a solvent is an organic solvent; the impregnation time lasts for 10-30 minutes; the drying mode is vacuum drying. The luminous plant fiber disclosed by the invention has an excellent fluorescence property and processability.

Description

technical field [0001] The invention belongs to the technical field of anti-counterfeiting fluorescent fibers, and in particular relates to a preparation method of luminescent plant fibers. Background technique [0002] With the rapid development of social economy and science and technology, fluorescent fibers are widely used in the fields of banknotes, securities, anti-counterfeiting certificates and packaging anti-counterfeiting materials as an easy-to-use and easy-to-identify anti-counterfeiting method, and occupy an important market position. It is necessary to continuously develop new varieties to meet the needs of different application fields. The research and development of environmentally friendly, new and efficient anti-counterfeiting technology will become the mainstream in the field of anti-counterfeiting fluorescent fibers. [0003] The fluorescent fibers currently on the market are basically chemical fibers made by mixing fluorescent substances with polymers an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/30D21H11/14D21C1/00D21D1/20D21H11/12
Inventor 陈港张俊奇方志强
Owner 广州市华年新材料科技有限公司
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