CN103669110B - Luminous plant fiber and preparation method thereof - Google Patents
Luminous plant fiber and preparation method thereof Download PDFInfo
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- CN103669110B CN103669110B CN201310564439.2A CN201310564439A CN103669110B CN 103669110 B CN103669110 B CN 103669110B CN 201310564439 A CN201310564439 A CN 201310564439A CN 103669110 B CN103669110 B CN 103669110B
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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
The invention belongs to false proof fluorescent fiber technical field, particularly relate to the preparation method of a kind of luminous plant fiber.
Background technology
Along with social economy and the fast development of science and technology, fluorescent fiber is easy to use as one, the method for anti-counterfeit easily distinguished is widely used in banknote, marketable securities, the making of anti-fake certificate and prepares the domain variability such as package anti-counterfeiting material and occupy important market position, needs to continually develop new kind and meets the demand in different application field.Environmental protection, the research and development of anti-counterfeiting technology novel, efficient will become the main flow of false proof fluorescent fiber field development.
The fluorescent fiber sold in the market is essentially all the chemical fibre prepared by fluorescent material with polymer mixed spinning.The fluorescent fiber ru nnability that the method prepares is the best, and complicated process of preparation, and equipment requirements is high.The existing granted patent of the preparation method of other fluorescent fibers such as staining (Li Xuelin. a kind of false proof fluorescent fiber of ultraviolet light double wave: China, [201220562937.4 P] .2013-4-17), the fluorescent fiber preparation methoies such as face coat method, High Speed Airflow Impact, chemic modified method, also in the experimentation stage, do not have the technology of maturation at present.The above fluorescent fiber obtained by fluorescent fiber preparation method is chemical fibre, non-degradable, does not possess environmental-protecting performance.
The features such as lignocellulosic fiber source enriches, and has renewable, reactive, biodegradable, prepare fluorescent fiber with Plant fiber for base material, will fill in the blank in false proof fluorescent fiber field, have wide market prospect and development potentiality.
Summary of the invention
It is an object of the invention to the deficiency overcoming prior art to exist, it is provided that the preparation method of a kind of luminous plant fiber, concrete technical scheme is as follows.
The preparation method of a kind of luminous plant fiber, described preparation method includes: impregnated in organic fluorescent solution by the Plant fiber through pretreatment, takes out the Plant fiber after dipping and filters, and dries, and prepares luminous plant fiber.Described luminous plant fiber has fluorescence property and the ru nnability of excellence.
Optimizing further, described Plant fiber includes protofibre cellulose fiber, regenerated celulose fibre or recycled fiber.
Optimizing further, in described organic fluorescent solution, solute is organic fluorescent substance, and solvent is organic solvent, and described organic fluorescent solution mass concentration is 0.5% ~ 20%.
Optimizing further, the dip time of described dipping is 10 ~ 30min.
Optimizing further, the described drying mode used of drying is vacuum drying, and drying temperature is 40 ~ 80 DEG C.
Further optimization, when Plant fiber is for protofibre cellulose fiber, described pretreatment carries out cold drying for first passing through after defibrination processes, and drying mode is drying at 30 ~ 50 DEG C for air-dried or temperature, and the beating degree that wherein defibrination processes is 20 ~ 35 ° of SR；When Plant fiber is for regenerated celulose fibre or recycled fiber, described pretreatment is for carrying out cold drying process, and drying mode is to dry at 30 ~ 50 DEG C for air-dried or temperature。
Optimizing further, described protofibre cellulose fiber includes the one in needle-leaved wood fibre, broad-leaved wood fiber, cotton fiber, flaxen fiber or bamboo fibre；Described regenerated celulose fibre includes viscose rayon；Described recycled fiber includes wastepaper recycled fiber, useless books and periodicals magazine recycled fiber or old newsprint recycled fiber.
Optimizing further, described organic fluorescent substance is aromatic hydrocarbon and substituent, aryl ethylene and aryl ethane compound, with the one in the outer compound of CN group of ring, five yuan and 6-membered heterocyclic compound, carbonyl compound, naphthalene dicarboxylic acid derivant, benzanthrone derivant, anthraquinone derivative or rhodamine and derivant thereof；Described organic solvent is the one in methanol, ethanol, isopropanol, acetone, ethyl acetate, chloroform, glacial acetic acid, dioxane, carbon tetrachloride, benzene, petroleum ether, toluene, nitromethane, ether, dimethylformamide or dimethyl sulfoxide.
The luminous plant fiber that the present invention prepares is observed under wavelength 365nm uviol lamp, and fiber luminescent properties is good.Luminous plant fiber applications luminous plant fiber in paper making, the paper obtained is evenly distributed, and unstressed configuration material comes off.
Compared with prior art, the invention have the advantages that and technique effect:
Luminous plant fiber prepared by the present invention, except having the fluorescence property that common fluorescent fiber is possessed, has good ru nnability simultaneously, can form well combination with the non-fluorescence Plant fiber in slurry.
Detailed description of the invention
It is embodied as being described further to the present invention below in conjunction with example, but the enforcement of the present invention and protection domain are not limited to this.
Embodiment
1
Experimental raw is the needle-leaved wood fibre in protofibre cellulose fiber.
Organic fluorescent substance N-phenyl-peri acid (belonging to aromatic hydrocarbon substituent) is dissolved in petroleum ether solvent, is configured to the organic fluorescent solution that mass concentration is 0.5%.
Needle-leaved wood fibre defibrination is processed, obtains the needle-leaved wood fibre that beating degree is 20 ° of SR；Needle-leaved wood fibre is air-dried the moisture removed in fiber；Needle-leaved wood fibre after air-drying impregnated in 30min in the organic fluorescent solution of concentration 0.5%, and dipping process uses magnetic agitation stirring at low speed；Take out needle-leaved wood fibre and filter；Needle-leaved wood fibre after filtering is positioned in vacuum drying oven drying, dries temperature 40 DEG C；Luminous plant fiber is obtained after drying.
Luminous plant fiber prepared by the present embodiment is observed under wavelength is 365nm uviol lamp, and fiber is hanced cyan fluorescent, and fiber luminescent properties is good.Being mixed with slurry by this luminous plant fiber, luminous plant fiber is the most dispersed, and in the paper that copy paper obtains, luminous plant fiber is evenly distributed, and does not falls off.
Embodiment
2
Experimental raw is the needle-leaved wood fibre in protofibre cellulose fiber.
Organic fluorescent substance 4-methyl umbelliferone (belonging to carbonyl compound) is dissolved in solvent dimethylformamide, is configured to the organic fluorescent solution that mass concentration is 20%.
Needle-leaved wood fibre defibrination is processed, obtains the needle-leaved wood fibre that beating degree is 35 ° of SR；Needle-leaved wood fibre is positioned over baking oven is dried at 30 DEG C the moisture removed in fiber；Dried needle-leaved wood fibre impregnated in 15min in the organic fluorescent solution of mass concentration 20%, and dipping process does not use magnetic agitation；Take out needle-leaved wood fibre and filter；Needle-leaved wood fibre after filtering is positioned in vacuum drying oven drying, dries temperature 80 DEG C；Luminous plant fiber is obtained after drying.
Luminous plant fiber prepared by the present embodiment is observed under wavelength is 365nm uviol lamp, and fiber is blue-fluorescence, and fiber luminescent properties is good.Being mixed with slurry by this luminous plant fiber, luminous plant fiber is the most dispersed, and in the paper that copy paper obtains, luminous plant fiber is evenly distributed, and does not falls off.
Embodiment
3
Experimental raw is the broad-leaved wood fiber in protofibre cellulose fiber.
Organic fluorescent substance Hirst fluorescent dye 33258(is belonged to five member ring heterocyclic compound) it is dissolved in dimethylsulfoxide solvent, it is configured to the organic fluorescent solution that mass concentration is 10%.
Broad-leaved wood fiber defibrination is processed, obtains the broad-leaved wood fiber that beating degree is 25 ° of SR；Broad-leaved wood fiber is positioned over baking oven is dried at 50 DEG C the moisture removed in fiber；Dried broad-leaved wood fiber impregnated in 20min in the organic fluorescent solution of mass concentration 10%, and dipping process uses magnetic agitation；Take out broad-leaved wood fiber and filter；Broad-leaved wood fiber after filtering is positioned in vacuum drying oven drying, dries temperature 60 C；Luminous plant fiber is obtained after drying.
Luminous plant fiber prepared by the present embodiment is observed under wavelength is 365nm uviol lamp, and fiber is hanced cyan fluorescent, and fiber luminescent properties is good.Being mixed with slurry by this luminous plant fiber, luminous plant fiber is the most dispersed, and in the paper that copy paper obtains, luminous plant fiber is evenly distributed, and does not falls off.
Embodiment
4
Experimental raw is the cotton fiber in protofibre cellulose fiber.
Rhodamine B organic fluorescent substance is dissolved in alcohol solvent, is configured to the organic fluorescent solution that mass concentration is 5%.
Cotton fiber defibrination is processed, obtains the cotton fiber that beating degree is 20 ° of SR；Cotton fiber is air-dried the moisture removed in fiber；Cotton fiber after air-drying impregnated in 10min in the organic fluorescent solution of mass concentration 5%, and dipping process uses magnetic agitation stirring at low speed；Take out cotton fiber and filter；Cotton fiber after filtering is positioned in vacuum drying oven drying, dries temperature 50 C；Luminous plant fiber is obtained after drying.
Luminous plant fiber prepared by the present embodiment is observed under wavelength is 365nm uviol lamp, and fiber takes on a red color fluorescence, and fiber luminescent properties is good.Being mixed with slurry by this luminous plant fiber, luminous plant fiber is the most dispersed, and in the paper that copy paper obtains, luminous plant fiber is evenly distributed, and does not falls off.
Embodiment
5
Experimental raw is the viscose rayon in regenerated celulose fibre.
Organic fluorescent substance 7-amino-4-methylcoumarin (belonging to 6-membered heterocyclic compound) is dissolved in ethanol, is configured to the organic fluorescent solution that mass concentration is 15%.
Viscose rayon is positioned over baking oven is dried at 40 DEG C the moisture removed in fiber；Dried viscose rayon impregnated in 30min in the organic fluorescent solution of mass concentration 15%, and dipping process does not use magnetic agitation；Take out viscose rayon and filter；Viscose rayon after filtering is positioned in vacuum drying oven drying, dries temperature 80 DEG C；Luminous plant fiber is obtained after drying.
Luminous plant fiber prepared by the present embodiment is observed under wavelength is 365nm uviol lamp, and fiber is blue-fluorescence, and fiber luminescent properties is good.Being mixed with slurry by this luminous plant fiber, luminous plant fiber is the most dispersed, and in the paper that copy paper obtains, luminous plant fiber is evenly distributed, and does not falls off.
Embodiment
6
Experimental raw is the wastepaper recycled fiber in recycled fiber.
Rhodamine B organic fluorescent substance is dissolved in alcohol solvent, is configured to the organic fluorescent solution that mass concentration is 10%.
Wastepaper recycled fiber is air-dried the moisture removed in fiber；Wastepaper recycled fiber after air-drying impregnated in 20min in the organic fluorescent solution of mass concentration 10%, and dipping process uses magnetic agitation stirring at low speed；Take out wastepaper recycled fiber and filter；Wastepaper recycled fiber after filtering is positioned in vacuum drying oven drying, dries temperature 50 C；Luminous plant fiber is obtained after drying.
Luminous plant fiber prepared by the present embodiment is observed under wavelength is 365nm uviol lamp, and fiber takes on a red color fluorescence, and fiber luminescent properties is good.Being mixed with slurry by this luminous plant fiber, luminous plant fiber is the most dispersed, and in the paper that copy paper obtains, luminous plant fiber is evenly distributed, and does not falls off.
Claims (6)
1. the preparation method of a luminous plant fiber, it is characterised in that the step of described preparation method is as follows:
(1) Plant fiber through pretreatment be impregnated in organic fluorescent solution；When Plant fiber is for protofibre cellulose fiber, described pretreatment carries out cold drying for first passing through after defibrination processes, and drying mode is to dry at 30 ~ 50 DEG C for air-dried or temperature, and the beating degree that wherein defibrination processes is 20 ~ 35 ° of SR；When Plant fiber is for regenerated celulose fibre or recycled fiber, described pretreatment is for carrying out cold drying process, and drying mode is to dry at 30 ~ 50 DEG C for air-dried or temperature；Described protofibre cellulose fiber includes the one in needle-leaved wood fibre, broad-leaved wood fiber, cotton fiber, flaxen fiber or bamboo fibre；Described regenerated celulose fibre includes viscose rayon；Described recycled fiber includes wastepaper recycled fiber, useless books and periodicals magazine recycled fiber or old newsprint recycled fiber；In described organic fluorescent solution, solute is organic fluorescent substance, and solvent is organic solvent, and described organic fluorescent solution mass concentration is 0.5% ~ 20%；
(2) take out the Plant fiber after impregnating and filter, drying, preparing luminous plant fiber；Obtained luminous plant fiber can apply to paper making, and in the paper obtained, luminous plant fiber is evenly distributed, and unstressed configuration material comes off.
The preparation method of luminous plant fiber the most according to claim 1, it is characterised in that: described Plant fiber includes protofibre cellulose fiber, regenerated celulose fibre or recycled fiber.
The preparation method of luminous plant fiber the most according to claim 1, it is characterised in that: the dip time of described dipping is 10 ~ 30min.
The preparation method of luminous plant fiber the most according to claim 1, it is characterised in that: the described drying mode used of drying is vacuum drying, and drying temperature is 40 ~ 80 DEG C.
The preparation method of luminous plant fiber the most according to claim 1, it is characterised in that: described organic fluorescent substance is aromatic hydrocarbon and substituent thereof, with the one in the outer compound of CN group of ring, five yuan and 6-membered heterocyclic compound, carbonyl compound, benzanthrone derivant, anthraquinone derivative or rhodamine and derivant thereof；Described organic solvent is the one in methanol, ethanol, isopropanol, acetone, ethyl acetate, chloroform, glacial acetic acid, dioxane, carbon tetrachloride, benzene, petroleum ether, toluene, nitromethane, ether, dimethylformamide or dimethyl sulfoxide.
6. the luminous plant fiber prepared by preparation method described in any one of claim 1-5, this luminous plant fiber can apply to paper making, and in the paper obtained, luminous plant fiber is evenly distributed, and unstressed configuration material comes off.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105442057A (en) * | 2015-11-11 | 2016-03-30 | 六安市华龙麻纺工艺制品有限公司 | Fluorescence processing method for preparing hemp fibers |
| CN108425276A (en) * | 2018-03-21 | 2018-08-21 | 保定钞票纸业有限公司 | A kind of cheque paper and preparation method thereof with irregular punctate fluorescence anti-false fiber |
| CN108642860B (en) * | 2018-04-26 | 2021-08-27 | 深圳市裕同包装科技股份有限公司 | Environment-friendly biomass-based rare earth down-conversion fluorescent fiber and preparation method thereof |
| CN108708220A (en) * | 2018-05-20 | 2018-10-26 | 复旦大学 | A kind of anti-fake hand-made paper of double wave length fluorescent and its production method |
| CN113957748B (en) * | 2021-10-28 | 2023-01-20 | 山东天和纸业有限公司 | Fiber and fluorescence anti-counterfeiting paper and preparation method thereof |
| CN114150408B (en) * | 2021-12-15 | 2023-06-20 | 张家港市华益纺织有限公司 | Luminous yarn processing device containing optical fiber and spinning technology thereof |
| CN116575230A (en) * | 2023-05-19 | 2023-08-11 | 华南理工大学 | Plant-based quantum dot composite fluorescent fiber and preparation method and application thereof |
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| CN101304872A (en) * | 2005-09-23 | 2008-11-12 | 生态涂料公司 | Combination for impregnating paper articles and natural fibre, as well as method, technique and apparatus thereof |
| CN202881745U (en) * | 2012-10-30 | 2013-04-17 | 李雪林 | Ultraviolet double-wavelength anti-fake fluorescent fiber |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304872A (en) * | 2005-09-23 | 2008-11-12 | 生态涂料公司 | Combination for impregnating paper articles and natural fibre, as well as method, technique and apparatus thereof |
| CN202881745U (en) * | 2012-10-30 | 2013-04-17 | 李雪林 | Ultraviolet double-wavelength anti-fake fluorescent fiber |
Non-Patent Citations (1)
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| 王喜华.荧光性植物纤维的制备及其应用研究.《工程科技I辑》.2012,(第1期),第17页，34、35、38、41页. * |
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Effective date of registration: 20170428 Address after: 510360 Guangdong, Liwan District, Fangcun Avenue West Dapeng street, Dapeng garden, room No. 201, No. 7 Patentee after: Guangzhou City, China new Mstar Technology Ltd Address before: 511458 Guangdong city of Guangzhou province Nansha District City Ring South Road No. 25 Hua University Guangzhou Research Institute Patentee before: South China University of Technology |
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