Fluorescent modified fiber and preparation method thereof

Abstract

The invention provides a fluorescent modified fiber and a preparation method thereof, and relates to the field of fluorescent modified fibers. The fluorescent modified fiber comprises the following components in parts by weight: 60-85 parts of a matrix fiber material, 5-15 parts of a fluorescent dye or a fluorescent compound, 2-6 parts of a durability enhancer, 0.5-2 parts of a dispersing agent, 1-5 parts of nano titanium dioxide particles, 0.5-3 parts of organic silicon resin, 0.5-2 parts of an ultraviolet light absorber, 0.5-2 parts of an antioxidant and 0.5-2 parts of a stabilizer. According to the technical scheme, the preparation method of the fluorescent modified fiber is provided, and the problem of poor durability of the fluorescent dye is effectively solved by reasonably adding the fluorescent dye, the durability enhancer, the dispersing agent, the nano titanium dioxide particles, the organic silicon resin, the ultraviolet light absorber, the antioxidant, the stabilizer and other components in the fiber manufacturing process.

Description

Technical Field

[0001] The invention relates to the technical field of fluorescent modified fibers, in particular to a fluorescent modified fiber and a preparation method thereof. Background Art

[0002] A fluorescent modified fiber is a fiber that emits fluorescence when illuminated by a specific light source by introducing fluorescent dyes or fluorescent compounds during the fiber manufacturing process. Its manufacturing method generally includes the following steps: first, selecting a suitable base fiber material, such as polyester fiber, nylon fiber, etc.; then, adding an appropriate amount of fluorescent dyes or fluorescent compounds during the fiber manufacturing process to ensure that they are evenly distributed in the fiber structure; finally, through spinning, stretching, shaping and other processes, a modified fiber with fluorescent properties is made. The modified fiber can be widely used in textiles, decorative materials, safety signs and other fields, using its fluorescent properties to enhance the functionality and aesthetics of the product.

[0003] Although fluorescent modified fibers have unique optical properties and broad application prospects, their systems also have some defects. Fluorescent dyes or fluorescent compounds have poor durability, and long-term use or exposure to sunlight may cause the fluorescence intensity to weaken or disappear, thus affecting the service life and effect of the product. The addition of fluorescent substances during the manufacturing process may increase production costs, and in some cases, the uniform distribution of fluorescent dyes is difficult to control, resulting in unstable product quality. Certain fluorescent dyes may pose environmental and health risks, and their usage and handling methods need to be strictly controlled. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a fluorescent modified fiber and a method for preparing the same, which solves the problem that the durability of fluorescent dyes or fluorescent compounds is poor, and long-term use or exposure to sunlight may cause the fluorescence intensity to weaken or disappear, thereby affecting the service life and effect of the product; the addition of fluorescent substances during the manufacturing process may increase production costs, and in some cases, the uniform distribution of fluorescent dyes is difficult to control, resulting in unstable product quality.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A fluorescent modified fiber, comprising:

[0008] Matrix fiber material: 60-85 parts by weight, fluorescent dye or fluorescent compound: 5-15 parts by weight, durability enhancer: 2-6 parts by weight, dispersant: 0.5-2 parts by weight, nano titanium dioxide particles: 1-5 parts by weight, silicone resin: 0.5-3 parts by weight, ultraviolet absorber: 0.5-2 parts by weight, antioxidant: 0.5-2 parts by weight, stabilizer: 0.5-2 parts by weight.

[0009] Among them, the base fiber material is polyester fiber or nylon fiber, the durability enhancer is an anti-ultraviolet stabilizer or an antioxidant, the dispersant is a non-ionic surfactant, the ultraviolet absorber is a benzotriazole compound, the antioxidant is a hindered amine compound, and the stabilizer is an organic tin compound.

[0010] Preferably, the fluorescent dye or fluorescent compound is a high-stability fluorescent dye, specifically a combination of one or more of the following: europium complex, terbium complex, coumarin derivative, pyrrolopyrrole dione, the durability enhancer is a benzophenone-type anti-ultraviolet stabilizer, and the antioxidant is a hindered amine antioxidant.

[0011] Preferably, the nano titanium dioxide particles have the following characteristics: a particle size of 10-100 nanometers, excellent photocatalytic activity and photostability, the silicone resin is a fluorinated siloxane compound that can enhance the wear resistance and water resistance of the fiber, the ultraviolet absorber is a benzotriazole compound, such as 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, the antioxidant is a hindered amine compound, such as N,N'-bis(2,2,6,6-tetramethylpiperidinyl)methylene-1,2-dihydrophthalimide, and the stabilizer is an organic tin compound, such as dibutyltin dilaurate.

[0012] A method for preparing fluorescent modified fibers comprises the following steps:

[0013] a. Providing a matrix fiber material: 60-85 parts by weight;

[0014] b. Prepare a fluorescent dye or fluorescent compound solution: dissolve 5-15 parts by weight of a fluorescent dye or fluorescent compound in an appropriate amount of solvent and stir for 30 minutes;

[0015] c. Adding a durability enhancer: Add 2-6 parts by weight of a durability enhancer to the fluorescent dye solution and stir for 30 minutes;

[0016] d. Adding a dispersant: adding 0.5-2 parts by weight of a dispersant to the solution and treating with an ultrasonic dispersing device for 20 minutes;

[0017] e. Add nano titanium dioxide particles: add 1-5 parts by weight of nano titanium dioxide particles to the solution and continue stirring for 1 hour;

[0018] f. Adding silicone resin: 0.5-3 parts by weight of silicone resin was added to the solution and mixed evenly for 30 minutes;

[0019] g. Add UV absorber: add 0.5-2 parts by weight of UV absorber to the solution and stir for 30 minutes;

[0020] h. Add antioxidant: add 0.5-2 parts by weight of antioxidant to the solution and stir for 30 minutes;

[0021] i. Add stabilizer: add 0.5-2 parts by weight of stabilizer to the solution and stir for 30 minutes;

[0022] j. Mixed solution: Mix all the above ingredients evenly to form a modified solution;

[0023] k. Coating the base fiber material: coating the modified solution on the base fiber material by dipping or spraying, the dipping time is 10-30 minutes;

[0024] 1. Spinning, stretching and shaping: Spinning is carried out through a spinning device, the spinning temperature is controlled at 200-250°C, the stretching ratio is 1.5-3.0 times, and the shaping temperature is 100-150°C to produce fluorescent modified fibers.

[0025] Preferably, the preparation temperature of the modified solution is controlled within the range of 25-35° C. to ensure the stability of the fluorescent dye or fluorescent compound, and the solvent used is a mixed solvent of ethanol and water in a ratio of 1:1 to improve dissolution efficiency and uniformity.

[0026] Preferably, the nano titanium dioxide particles are added by a stepwise addition method, and are stirred evenly for 15 minutes after each addition to ensure uniform distribution of the particles.

[0027] Preferably, the spinning speed in the spinning process is controlled at 500-1000 m / min to ensure the mechanical properties and surface quality of the fiber, and the stretching process is carried out in an environment with a temperature of 80-120° C. to enhance the strength and elasticity of the fiber.

[0028] Preferably, the fluorescent modified fiber is subjected to an ultraviolet aging test to evaluate its fluorescence durability and light stability.

[0029] (III) Beneficial effects

[0030] The present invention provides a fluorescent modified fiber and a preparation method thereof, which has the following beneficial effects:

[0031] This technical solution provides a method for preparing fluorescent modified fibers, which effectively solves the problem of poor durability of fluorescent dyes by rationally adding fluorescent dyes, durability enhancers, dispersants, nano titanium dioxide particles, silicone resins, ultraviolet absorbers, antioxidants and stabilizers during the fiber manufacturing process. Ultrasonic dispersion technology and gradual addition method ensure uniform distribution of each component in the fiber, improve the fluorescence intensity and stability of the fiber, so that it can still maintain a good fluorescence effect after long-term use or exposure to sunlight, thereby extending the service life of the product.

[0032] The production process adopted by this method is simple and efficient, and large-scale production can be achieved using existing spinning, stretching, and shaping equipment, thereby reducing production costs. At the same time, by subjecting the matrix fiber material to plasma treatment and vacuum filtration and other process steps, the adhesion and uniformity of the modified solution are further improved, and the quality stability and mechanical properties of the final product are ensured. Overall, this technical solution not only improves the functionality and durability of the fluorescent modified fiber, but also has good economy and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the internal structure of the present invention. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] like Figure 1 As shown, an embodiment of the present invention provides a fluorescent modified fiber, including: a base fiber material: 60 parts by weight, a fluorescent dye or a fluorescent compound: 5 parts by weight, a durability enhancer: 2 parts by weight, a dispersant: 0.5 parts by weight, nano titanium dioxide particles: 1 part by weight, a silicone resin: 0.5 parts by weight, an ultraviolet absorber: 0.5 parts by weight, an antioxidant: 0.5 parts by weight, and a stabilizer: 0.5 parts by weight.

[0037] The base fiber material is polyester fiber or nylon fiber, the durability enhancer is an anti-ultraviolet stabilizer or an antioxidant, the dispersant is a non-ionic surfactant, the ultraviolet absorber is a benzotriazole compound, the antioxidant is a hindered amine compound, the stabilizer is an organic tin compound, and the fluorescent dye or fluorescent compound is a high-stability fluorescent dye, specifically a combination of one or more of the following: europium complex, terbium complex, coumarin derivative, pyrrolopyrrole dione, the durability enhancer is a benzophenone anti-ultraviolet stabilizer, and the antioxidant is a hindered amine antioxidant. Nano titanium dioxide particles have the following characteristics: particle size is 10-100 nanometers, with excellent photocatalytic activity and light stability, silicone resin is a fluorinated siloxane compound, which can enhance the wear resistance and water resistance of the fiber, ultraviolet absorber is a benzotriazole compound, such as 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, antioxidant is a hindered amine compound, such as N,N'-bis(2,2,6,6-tetramethylpiperidinyl)methylene-1,2-dihydrophthalimide, stabilizer is an organic tin compound, such as dibutyltin dilaurate.

[0038] A method for preparing fluorescent modified fibers comprises the following steps:

[0039] a. Provide base fiber material: 60-85 parts by weight.

[0040] b. Prepare fluorescent dye or fluorescent compound solution: dissolve 5-15 parts by weight of fluorescent dye or fluorescent compound in an appropriate amount of solvent and stir for 30 minutes. The fluorescent modified fiber is subjected to ultraviolet aging test to evaluate its fluorescence durability and light stability.

[0041] c. Adding a durability enhancer: Add 2-6 parts by weight of a durability enhancer to the fluorescent dye solution and stir evenly for 30 minutes.

[0042] d. Adding a dispersant: Add 0.5-2 parts by weight of a dispersant to the solution and treat with an ultrasonic dispersing device for 20 minutes.

[0043] e. Adding nano titanium dioxide particles: Add 1-5 parts by weight of nano titanium dioxide particles to the solution and continue stirring for 1 hour. The nano titanium dioxide particles are added stepwise, and stirred evenly for 15 minutes after each addition to ensure uniform distribution of the particles.

[0044] f. Adding silicone resin: Add 0.5-3 parts by weight of silicone resin to the solution and mix evenly for 30 minutes.

[0045] g. Adding UV absorber: Add 0.5-2 parts by weight of UV absorber to the solution and stir for 30 minutes.

[0046] h. Add antioxidant: Add 0.5-2 parts by weight of antioxidant to the solution and stir for 30 minutes.

[0047] i. Add stabilizer: Add 0.5-2 parts by weight of stabilizer to the solution and stir for 30 minutes.

[0048] j. Mixed solution: Mix all the above ingredients evenly to form a modified solution.

[0049] k. Coating the base fiber material: Coat the modified solution on the base fiber material by dipping or spraying. The dipping time is 10-30 minutes. The preparation temperature of the modified solution is controlled within the range of 25-35°C to ensure the stability of the fluorescent dye or fluorescent compound. The solvent used is a mixed solvent of ethanol and water in a ratio of 1:1 to improve the dissolution efficiency and uniformity.

[0050] l. Spinning, stretching and shaping: Spinning is carried out through spinning equipment, the spinning temperature is controlled at 200-250℃, the stretching ratio is 1.5-3.0 times, and the shaping temperature is 100-150℃ to make fluorescent modified fibers. The spinning speed during the spinning process is controlled at 500-1000 meters / minute to ensure the mechanical properties and surface quality of the fibers. The stretching process is carried out in an environment with a temperature of 80-120℃ to enhance the strength and elasticity of the fibers.

[0051] Embodiment 2:

[0052] like Figure 1 As shown, an embodiment of the present invention provides a fluorescent modified fiber, including: a base fiber material: 70 parts by weight, a fluorescent dye or a fluorescent compound: 10 parts by weight, a durability enhancer: 4 parts by weight, a dispersant: 1 part by weight, nano titanium dioxide particles: 3 parts by weight, a silicone resin: 2 parts by weight, an ultraviolet absorber: 1 part by weight, an antioxidant: 1 part by weight, and a stabilizer: 1 part by weight.

[0053] The base fiber material is polyester fiber or nylon fiber, the durability enhancer is an anti-ultraviolet stabilizer or an antioxidant, the dispersant is a non-ionic surfactant, the ultraviolet absorber is a benzotriazole compound, the antioxidant is a hindered amine compound, the stabilizer is an organic tin compound, and the fluorescent dye or fluorescent compound is a high-stability fluorescent dye, specifically a combination of one or more of the following: europium complex, terbium complex, coumarin derivative, pyrrolopyrrole dione, the durability enhancer is a benzophenone anti-ultraviolet stabilizer, and the antioxidant is a hindered amine antioxidant. Nano titanium dioxide particles have the following characteristics: particle size is 10-100 nanometers, with excellent photocatalytic activity and light stability, silicone resin is a fluorinated siloxane compound, which can enhance the wear resistance and water resistance of the fiber, ultraviolet absorber is a benzotriazole compound, such as 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, antioxidant is a hindered amine compound, such as N,N'-bis(2,2,6,6-tetramethylpiperidinyl)methylene-1,2-dihydrophthalimide, stabilizer is an organic tin compound, such as dibutyltin dilaurate.

[0054] Embodiment three:

[0055] like Figure 1 As shown, an embodiment of the present invention provides a fluorescent modified fiber, including: base fiber material: 85 parts by weight, fluorescent dye or fluorescent compound: 15 parts by weight, durability enhancer: 6 parts by weight, dispersant: 2 parts by weight, nano titanium dioxide particles: 5 parts by weight, silicone resin: 3 parts by weight, ultraviolet absorber: 2 parts by weight, antioxidant: 2 parts by weight, stabilizer: 2 parts by weight.

[0056] The base fiber material is polyester fiber or nylon fiber, the durability enhancer is an anti-ultraviolet stabilizer or an antioxidant, the dispersant is a non-ionic surfactant, the ultraviolet absorber is a benzotriazole compound, the antioxidant is a hindered amine compound, the stabilizer is an organic tin compound, and the fluorescent dye or fluorescent compound is a high-stability fluorescent dye, specifically a combination of one or more of the following: europium complex, terbium complex, coumarin derivative, pyrrolopyrrole dione, the durability enhancer is a benzophenone anti-ultraviolet stabilizer, and the antioxidant is a hindered amine antioxidant. Nano titanium dioxide particles have the following characteristics: particle size is 10-100 nanometers, with excellent photocatalytic activity and light stability, silicone resin is a fluorinated siloxane compound, which can enhance the wear resistance and water resistance of the fiber, ultraviolet absorber is a benzotriazole compound, such as 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, antioxidant is a hindered amine compound, such as N,N'-bis(2,2,6,6-tetramethylpiperidinyl)methylene-1,2-dihydrophthalimide, stabilizer is an organic tin compound, such as dibutyltin dilaurate.

[0057] Table 1:

[0058]

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluorescent modified fiber, characterized in that: include: Matrix fiber material: 60-85 parts by weight, fluorescent dye or fluorescent compound: 5-15 parts by weight, durability enhancer: 2-6 parts by weight, dispersant: 0.5-2 parts by weight, nano titanium dioxide particles: 1-5 parts by weight, silicone resin: 0.5-3 parts by weight, ultraviolet absorber: 0.5-2 parts by weight, antioxidant: 0.5-2 parts by weight, stabilizer: 0.5-2 parts by weight. Among them, the base fiber material is polyester fiber or nylon fiber, the durability enhancer is an anti-ultraviolet stabilizer or an antioxidant, the dispersant is a non-ionic surfactant, the ultraviolet absorber is a benzotriazole compound, the antioxidant is a hindered amine compound, and the stabilizer is an organic tin compound.

2. A fluorescent modified fiber according to claim 1, characterized in that: The fluorescent dye or fluorescent compound is a high-stability fluorescent dye, specifically a combination of one or more of the following: europium complex, terbium complex, coumarin derivative, pyrrolopyrrole dione, the durability enhancer is a benzophenone-type anti-ultraviolet stabilizer, and the antioxidant is a hindered amine antioxidant.

3. The fluorescent modified fiber according to claim 1, characterized in that: The nano titanium dioxide particles have the following characteristics: a particle size of 10-100 nanometers, excellent photocatalytic activity and light stability, the silicone resin is a fluorine-containing silicone compound, which can enhance the wear resistance and water resistance of the fiber, the ultraviolet absorber is a benzotriazole compound, such as 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, the antioxidant is a hindered amine compound, such as N,N'-bis(2,2,6,6-tetramethylpiperidinyl)methylene-1,2-dihydrophthalimide, and the stabilizer is an organic tin compound, such as dibutyltin dilaurate.

4. A method for preparing fluorescent modified fibers, characterized in that: The following steps are involved: a. Providing a matrix fiber material: 60-85 parts by weight; b. Prepare a fluorescent dye or fluorescent compound solution: dissolve 5-15 parts by weight of a fluorescent dye or fluorescent compound in an appropriate amount of solvent and stir for 30 minutes; c. Adding a durability enhancer: Add 2-6 parts by weight of a durability enhancer to the fluorescent dye solution and stir for 30 minutes; d. Adding a dispersant: adding 0.5-2 parts by weight of a dispersant to the solution and treating with an ultrasonic dispersing device for 20 minutes; e. Add nano titanium dioxide particles: add 1-5 parts by weight of nano titanium dioxide particles to the solution and continue stirring for 1 hour; f. Adding silicone resin: 0.5-3 parts by weight of silicone resin was added to the solution and mixed evenly for 30 minutes; g. Add UV absorber: add 0.5-2 parts by weight of UV absorber to the solution and stir for 30 minutes; h. Add antioxidant: add 0.5-2 parts by weight of antioxidant to the solution and stir for 30 minutes; i. Add stabilizer: add 0.5-2 parts by weight of stabilizer to the solution and stir for 30 minutes; j. Mixed solution: Mix all the above ingredients evenly to form a modified solution; k. Coating the base fiber material: coating the modified solution on the base fiber material by dipping or spraying, the dipping time is 10-30 minutes; 1. Spinning, stretching and shaping: Spinning is carried out through a spinning device, the spinning temperature is controlled at 200-250°C, the stretching ratio is 1.5-3.0 times, and the shaping temperature is 100-150°C to produce fluorescent modified fibers.

5. A fluorescent modified fiber according to claim 4, characterized in that: The preparation temperature of the modified solution is controlled within the range of 25-35° C. to ensure the stability of the fluorescent dye or fluorescent compound. The solvent used is a mixed solvent of ethanol and water in a ratio of 1:1 to improve dissolution efficiency and uniformity.

6. A fluorescent modified fiber according to claim 4, characterized in that: The nano titanium dioxide particles are added by a stepwise addition method, and are stirred evenly for 15 minutes after each addition to ensure uniform distribution of the particles.

7. The fluorescent modified fiber according to claim 4, characterized in that: The spinning speed in the spinning process is controlled at 500-1000 m / min to ensure the mechanical properties and surface quality of the fiber, and the stretching process is carried out in an environment with a temperature of 80-120° C. to enhance the strength and elasticity of the fiber.

8. The fluorescent modified fiber according to claim 4, characterized in that: The fluorescent modified fiber was subjected to UV aging test to evaluate its fluorescence durability and light stability.

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