CN113279254B - Polyvinylpyrrolidone coating fluorescent yarn and preparation method thereof - Google Patents
Polyvinylpyrrolidone coating fluorescent yarn and preparation method thereof Download PDFInfo
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- CN113279254B CN113279254B CN202110727869.6A CN202110727869A CN113279254B CN 113279254 B CN113279254 B CN 113279254B CN 202110727869 A CN202110727869 A CN 202110727869A CN 113279254 B CN113279254 B CN 113279254B
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- 229920000036 polyvinylpyrrolidone Polymers 0.000 title claims abstract description 79
- 239000001267 polyvinylpyrrolidone Substances 0.000 title claims abstract description 79
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 title claims abstract description 79
- 239000011248 coating agent Substances 0.000 title claims abstract description 14
- 238000000576 coating method Methods 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000004513 sizing Methods 0.000 claims abstract description 44
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 66
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 claims description 26
- 229920000742 Cotton Polymers 0.000 claims description 21
- 239000003999 initiator Substances 0.000 claims description 20
- 238000001035 drying Methods 0.000 claims description 13
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 3
- 229920000297 Rayon Polymers 0.000 claims description 3
- 235000009120 camo Nutrition 0.000 claims description 3
- 235000005607 chanvre indien Nutrition 0.000 claims description 3
- 239000011487 hemp Substances 0.000 claims description 3
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 3
- 238000010526 radical polymerization reaction Methods 0.000 claims 1
- 238000004043 dyeing Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000006116 polymerization reaction Methods 0.000 abstract description 6
- 239000007850 fluorescent dye Substances 0.000 abstract description 4
- 238000004132 cross linking Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- 239000000975 dye Substances 0.000 description 4
- 238000002189 fluorescence spectrum Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920006037 cross link polymer Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 150000003951 lactams Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002073 fluorescence micrograph Methods 0.000 description 1
- 238000000799 fluorescence microscopy Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229920000831 ionic polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
- D06M15/3562—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms containing nitrogen
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Abstract
The invention discloses a preparation method of a polyvinylpyrrolidone coating fluorescent yarn, and belongs to the technical field of yarn processing. In the sizing process, a fluorescent dye and polyvinylpyrrolidone are sequentially coated on the surface of the yarn by adopting a 2-step sizing method to prepare the fluorescent yarn. The method has simple process, and the coating is prepared by polymerization initiated by polyvinylpyrrolidone free radicals, so that the fluorescent slurry is firmly solidified on the surface of the yarn, and the yarn is endowed with corrosion resistance, weather resistance and good level-dyeing property.
Description
Technical Field
The invention belongs to the technical field of yarn processing, and particularly relates to a polyvinylpyrrolidone coating fluorescent yarn and a preparation method thereof.
Background
The fluorescent yarn is a high-visibility product with safety, warning, protection and identification functions, brings convenience to life of people, is more and more widely applied along with the development of technological progress, and is mainly applied to the fields of building decoration, transportation, aviation and navigation, night work, fire emergency, daily life and the like. The existing fluorescent yarn is generally made of cotton fiber, the dye adsorption amount is large in the fluorescent dye dyeing process, the dye and the fiber are only combined through hydrogen bonds and Van der Waals force, and the color fastness of the yarn after fluorescent dyeing is poor. Due to the chemical properties of the cotton fibers, the fluorescent cotton yarns are easily affected by the external temperature and humidity environment, and the corrosion resistance, the strength and the toughness of the fluorescent cotton yarns are poor. Therefore, in order to overcome the defects of the fluorescent cotton yarn in the prior art and simplify the fluorescent yarn preparation process, the invention provides the fluorescent yarn preparation method which is durable, efficient, practical and easy to manufacture.
Disclosure of Invention
The invention provides a method for preparing fluorescent yarn by a slashing method. The fluorescent dye and polyvinylpyrrolidone (PVP) are coated on the surface of the yarn, and then a high molecular weight linear PVP or a reticular cross-linked PVP polymer coating is coated on the surface of the fiber by utilizing the cross-linking reaction of the PVP, so that the fluorescent dye is firmly combined with the yarn, and the fluorescent yarn with corrosion resistance, weather resistance and good level-dyeing property is prepared.
The polyvinyl pyrrolidone cross-linked coating fluorescent yarn is characterized in that the surface of the yarn is coated with a polyvinyl pyrrolidone polymer, and fluorescein is arranged between the yarn and a polyvinyl pyrrolidone intermediate layer.
Further, in the above technical scheme, the yarn includes cotton yarn or hemp and viscose yarn containing hydroxyl.
A preparation method of a polyvinylpyrrolidone cross-linked coating fluorescent yarn comprises the following process flows: the method comprises the following steps of:
(1) preparing fluorescent slurry: respectively preparing a fluorescein/ethanol solution and a PVP/ethanol solution; stirring the PVP/ethanol solution at 80-90 ℃, cooling the PVP/ethanol solution to room temperature, mixing the PVP/ethanol solution with the fluorescein/ethanol solution according to the volume ratio of 4:1-3:2, and stirring to obtain fluorescent slurry;
(2) preparing an initiator solution;
(3) sizing the yarn, wherein the sizing is the fluorescent sizing prepared in the step (1), and the fluorescein/PVP is adsorbed on the surface of the yarn;
(4) secondly, sizing the slashing, wherein the sizing agent is the initiator solution prepared in the step (2), the initiator initiates PVP polymerization, so that high-molecular-weight linear PVP or reticular cross-linked PVP polymer is coated on the surface of the slashing, and fluorescein is arranged in a middle layer between the slashing and the PVP polymer; and drying to obtain the fluorescent yarn.
Further, in the technical scheme, the concentration of the fluorescein in the fluorescent slurry obtained in the step (1) is 5-10g/L, the concentration of the polyvinylpyrrolidone is 10-30g/L, and the stirring time is 2-4 h.
Further, in the above technical scheme, the initiator in step (2) includes persulfate and azobisisobutyronitrile, and the concentration of the initiator solution is 0.5-1 wt%.
Further, in the above technical scheme, the one-pass sizing condition is as follows: the sizing speed is 70-80m/min, the temperature of the slurry is 80-90 ℃, and the drying temperature is 70-80 ℃.
Further, in the above technical scheme, the two sizing yarn conditions are as follows: the sizing speed is 70-80m/min, the temperature of the pulp is 80-90 ℃, and the drying temperature is 70-80 ℃.
The invention has the beneficial effects that:
1. cellulose fiber molecular structures such as cotton, hemp, viscose and the like contain hydroxyl functional groups, and fluorescein molecular structures contain carbonyl functional groups. The molecular chain of PVP contains a lactam group with 40 dipole moment and larger polarity, and strong bonding force is formed between the lactam group and organic functional groups such as hydroxyl, amino and carboxyl. The binding force enables fluorescein molecules and PVP molecules to be fixed on cotton fiber molecules by virtue of hydrogen bonds. The addition of PVP macromolecules weakens the initial dye-uptake rate of the dye, improves the dye level dyeing effect on the fiber, and has uniform yarn color.
2. PVP is a non-ionic polymer compound. The PVP is easy to generate partial cross-linking to generate linear or reticular cross-linking PVP with large molecular weight under the action of an initiator (such as persulfate and azobisisobutyronitrile), the cross-linking PVP has better water resistance and weather resistance, the corrosion resistance of the material is improved, the service life of the material is prolonged, and the prepared fluorescent yarn is particularly suitable for the fields of outdoor building decoration, traffic transportation, aviation and navigation, night operation, fire emergency and the like. Meanwhile, the cross-linked PVP coating does not influence the fluorescent effect, and the corrosion resistance, the water resistance and the color fastness of the fluorescent yarn are improved.
3. The technical scheme of the invention is simple and feasible, fiber dyeing is not needed, and large-scale fluorescent yarn production can be realized on a yarn machine. The obtained yarn has corrosion resistance, weather resistance and good level dyeing property.
Drawings
FIG. 1 shows photographs of fluorescent yarn and ordinary yarn under fluorescent lamp (A) and ultraviolet lamp (B).
Fig. 2 is a fluorescence micrograph of a fluorescent yarn.
FIG. 3 is a SEM image of a fluorescent yarn; wherein (A) is fluorescent yarn with magnification of 500, and (B) is fluorescent yarn with magnification of 3000.
FIG. 4 is a graph of fluorescent yarn spectral analysis.
FIG. 5 is a graph of the fluorescent yarn spectra after water washing.
Detailed Description
The following non-limiting examples will allow one of ordinary skill in the art to more fully understand the present invention, but are not intended to limit the invention in any way.
The embodiment of the invention selects the following materials and devices:
sizing equipment: adopting a GA392 type electronic single-yarn sizing machine, a Tongyuan spinning machine company Limited in Jiangyin;
scanning Electron Microscope (SEM): a super-high resolution thermal field emission scanning electron microscope JSM-780DF, Japanese Electron JEDL; drying the fluorescent yarn, adhering the fluorescent yarn on a special aluminum plate, plating a platinum film on the surface of the yarn by using an ion sputtering coating instrument, and finally observing by using a scanning electron microscope and keeping an image;
and (3) strength test: YG061F/PC type single yarn strength tester, Laizhou electronic instruments, Inc. is selected;
fluorescence spectrum: the device adopts an F-7000 type fluorescence spectrometer, Guangzhou Beitu scientific and technology limited company, and a 450W xenon lamp is used for exciting a sample at the wavelength of 460 nm;
fluorescence microscopy: the device is selected from M-FL-CKX53 biomicroscope, Olympus, Japan.
Example 1
Preparing fluorescent slurry: 20g/L fluorescein/ethanol solution and 30g/L PVP/ethanol solution are prepared. The PVP/ethanol solution was stirred at 90 ℃ for 2 h. And cooling the PVP/ethanol solution, mixing the cooled PVP/ethanol solution with the fluorescein/ethanol solution according to the volume ratio of 4:1, and stirring for 2 hours to obtain the fluorescent slurry.
Preparing an initiator solution: 1.0 wt% azobisisobutyronitrile/ethanol solution was prepared.
Preparing fluorescent cotton yarn: sizing cotton yarn at one step, wherein the size is fluorescent size, the sizing speed is 70m/min, the size temperature is 80 ℃, the drying temperature is 70 ℃, and the fluorescein/PVP is adsorbed on the surface of the cotton yarn. And secondly, sizing, wherein the sizing is an initiator solution, the sizing speed is 70m/min, the temperature of the sizing is 90 ℃, the drying temperature is 70 ℃, and the initiator initiates PVP (polyvinyl pyrrolidone) cross-linking polymerization. And (3) coating the PVP cross-linked polymer on the surface of the cotton yarn through polymerization, and placing fluorescein in the middle layer between the yarn and the cross-linked PVP to obtain the fluorescent yarn.
The appearance of the prepared fluorescent yarn is shown in fig. 2, and under ultraviolet light, the yarn shows yellow green fluorescence. The photograph under the fluorescent fiberscope is shown in FIG. 4 and shows yellow-green fluorescence. The yarn surface SEM is shown in fig. 3, with the fiber surface coated. As shown in Table 1, the resulting fluorescent yarn was tested to have a yarn breaking strength of 17.8cN/tex and an elongation at break of 4.61%. The breaking strength was increased as compared with the base yarn (11.8cN/tex), and the elongation at break was decreased as compared with the base yarn (6.81%).
Fluorescence spectra As shown in FIG. 5, the fluorescent yarn achieved a maximum emission wavelength at 540nm, peaking at 655. Washing the fluorescent yarns with 25 ℃ deionized water at different time intervals of 3 min; and dried at room temperature. After washing for different lengths of time, the fluorescent powder still has high fluorescence intensity after washing for 10 times.
TABLE 1 yarn Strength test results
Example 2
Preparing fluorescent slurry: 15g/L fluorescein/ethanol solution and 15g/L PVP/ethanol solution were prepared. The PVP/ethanol solution was stirred at 90 ℃ for 2 h. And cooling the PVP/ethanol solution, mixing the cooled PVP/ethanol solution with the fluorescein/ethanol solution according to the volume ratio of 3:2, and stirring for 2 hours to obtain the fluorescent slurry.
Preparing an initiator solution: 0.5 wt% azobisisobutyronitrile/ethanol solution was prepared.
Preparing fluorescent cotton yarn: and sizing the cotton yarn at the first time, wherein the sizing is fluorescent sizing, the sizing speed is 75m/min, the temperature of the sizing is 90 ℃, the drying temperature is 70 ℃, and the fluorescein/PVP is adsorbed on the surface of the cotton yarn. And secondly, sizing, wherein the sizing is initiator solution, the sizing speed is 75m/min, the temperature of the sizing is 90 ℃, the drying temperature is 70 ℃, and the initiator initiates PVP (polyvinyl pyrrolidone) crosslinking polymerization. Coating macromolecular or reticular PVP cross-linked polymer on the surface of cotton yarn, and placing fluorescein in the middle layer between the yarn and the cross-linked PVP to obtain the fluorescent yarn. The fluorescence spectrum shows that the fluorescent yarn obtains a maximum emission wavelength peak value of 536.
Example 3
Preparing fluorescent slurry: a15 g/L fluorescein/ethanol solution and a 20g/L PVP/ethanol solution were prepared. The PVP/ethanol solution was stirred at 90 ℃ for 2 h. And cooling the PVP/ethanol solution, mixing the cooled PVP/ethanol solution with the fluorescein/ethanol solution according to the volume ratio of 4:1, and stirring for 2 hours to obtain the fluorescent slurry.
Preparing an initiator solution: 1.0 wt% sodium persulfate/ethanol solution was prepared.
Preparing fluorescent cotton yarn: sizing cotton yarn at the first time, wherein the sizing is fluorescent sizing, the sizing speed is 80m/min, the temperature of the sizing is 90 ℃, the drying temperature is 70 ℃, and the fluorescein/PVP is adsorbed on the surface of the cotton yarn. And secondly, sizing, wherein the sizing is an initiator solution, the sizing speed is 80m/min, the temperature of the sizing is 90 ℃, the drying temperature is 70 ℃, and the initiator initiates PVP (polyvinyl pyrrolidone) cross-linking polymerization. Coating macromolecular or reticular PVP cross-linked polymer on the surface of cotton yarn, and placing fluorescein in the middle layer between the yarn and the cross-linked PVP to obtain the fluorescent yarn. The fluorescence spectrum shows that the maximum emission wavelength peak value of the fluorescent yarn reaches 574.
Claims (6)
1. The polyvinyl pyrrolidone coated fluorescent yarn is characterized in that the surface of the fluorescent yarn is coated with a polyvinyl pyrrolidone polymer, and fluorescein is arranged between the yarn and the polyvinyl pyrrolidone polymer;
the process flow of the polyvinylpyrrolidone coating fluorescent yarn is as follows: the method comprises the following steps of raw yarn-first slashing-second slashing-fluorescent yarn:
(1) preparing fluorescent slurry: respectively preparing a fluorescein/ethanol solution and a polyvinylpyrrolidone/ethanol solution; stirring the polyvinylpyrrolidone/ethanol solution at 80-90 ℃, cooling the polyvinylpyrrolidone/ethanol solution to room temperature, mixing the polyvinylpyrrolidone/ethanol solution with the fluorescein/ethanol solution according to the volume ratio of 4:1-3:2, and stirring to obtain fluorescent slurry;
(2) preparing an initiator solution;
(3) sizing, namely fluorescent sizing prepared in the step (1), and adsorbing fluorescein/polyvinylpyrrolidone on the surface of the yarn;
(4) secondly, sizing the slashing, wherein the sizing is an initiator solution prepared in the step (2), the initiator initiates the free radical polymerization of polyvinylpyrrolidone, so that the high molecular weight linear polyvinylpyrrolidone or the reticular cross-linked polyvinylpyrrolidone polymer is coated on the surface of the yarn, and the fluorescein is arranged in the middle layer between the yarn and the polyvinylpyrrolidone polymer; and drying to obtain the fluorescent yarn.
2. The polyvinylpyrrolidone coated fluorescent yarn of claim 1, wherein the yarn comprises cotton or hydroxyl group-containing hemp or viscose yarn.
3. The polyvinylpyrrolidone coated fluorescent yarn of claim 1, wherein the concentration of fluorescein in the fluorescent slurry obtained in step (1) is 5-10g/L, the concentration of polyvinylpyrrolidone in the fluorescent slurry is 15-30g/L, and the stirring time is 2-4 h.
4. A polyvinylpyrrolidone coated fluorescent yarn according to claim 1, wherein the initiator of step (2) comprises persulfate, azobisisobutyronitrile and the concentration of the initiator solution is 0.5-1.0 wt%.
5. The polyvinylpyrrolidone coated fluorescent yarn of claim 1, wherein one sizing condition is: the sizing speed is 70-80m/min, the temperature of the slurry is 80-90 ℃, and the drying temperature is 70-80 ℃.
6. A polyvinylpyrrolidone coated fluorescent yarn according to claim 1, characterized in that the two size yarn conditions are: the sizing speed is 70-80m/min, the temperature of the slurry is 80-90 ℃, and the drying temperature is 70-80 ℃.
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US5824413A (en) * | 1996-07-15 | 1998-10-20 | Ppg Industries, Inc. | Secondary coating for fiber strands, coated strand reinforcements, reinforced polymeric composites and a method of reinforcing a polymeric material |
CN102627783A (en) * | 2012-04-20 | 2012-08-08 | 北京化工大学 | Crosslinked polyethylene pyrrolidone-base fluorescent composite thin film and preparation method thereof |
CN108103812A (en) * | 2017-12-30 | 2018-06-01 | 常州文诺纺织品有限公司 | A kind of preparation method of environment protecting plant type cotton fibre color fixing agent |
CN109322149A (en) * | 2018-09-29 | 2019-02-12 | 南京工业大学 | A kind of preparation method of degradable, multicolor luminous fiber |
CN111116813A (en) * | 2019-12-30 | 2020-05-08 | 河北工业大学 | Preparation method of fluorescent microspheres based on crosslinked polymer |
CN111511240A (en) * | 2017-10-27 | 2020-08-07 | 耐克创新有限合伙公司 | Articles comprising coated fibers and methods of making coated fibers and articles |
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Patent Citations (6)
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US5824413A (en) * | 1996-07-15 | 1998-10-20 | Ppg Industries, Inc. | Secondary coating for fiber strands, coated strand reinforcements, reinforced polymeric composites and a method of reinforcing a polymeric material |
CN102627783A (en) * | 2012-04-20 | 2012-08-08 | 北京化工大学 | Crosslinked polyethylene pyrrolidone-base fluorescent composite thin film and preparation method thereof |
CN111511240A (en) * | 2017-10-27 | 2020-08-07 | 耐克创新有限合伙公司 | Articles comprising coated fibers and methods of making coated fibers and articles |
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