CN112680019A - Fluorescence identification colored optical fiber and preparation method thereof - Google Patents
Fluorescence identification colored optical fiber and preparation method thereof Download PDFInfo
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- CN112680019A CN112680019A CN201910988748.XA CN201910988748A CN112680019A CN 112680019 A CN112680019 A CN 112680019A CN 201910988748 A CN201910988748 A CN 201910988748A CN 112680019 A CN112680019 A CN 112680019A
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Abstract
The invention discloses a fluorescence identification colored optical fiber and a preparation method thereof, belonging to the field of optical fibers. The colored optical fiber includes: the optical fiber comprises a fiber core, a cladding coated on the outer surface of the fiber core and a coating coated on the outer surface of the cladding; the coating comprises an inner layer, an outer layer and an ink layer, wherein the inner layer, the outer layer and the ink layer are sequentially coated on the outer surface of the coating; the ink layer comprises the following components in percentage by mass: 0.001-2.5% of fluorescent whitening agent, 10-80% of acrylate oligomer, 5-50% of acrylic monomer, 0.1-15% of photoinitiator, 0.01-10% of active amine co-initiator, 0.01-10% of toner, 0.01-10% of flatting agent, 0.01-10% of defoaming agent and 0.01-10% of dispersing agent. The colored optical fiber not only has a fluorescent effect, but also avoids the problem of signal attenuation.
Description
Technical Field
The invention relates to the field of optical fibers, in particular to a fluorescent identification colored optical fiber and a preparation method thereof.
Background
An optical fiber, i.e. an optical fiber, is a transmission medium for transmitting information from one end to the other end based on the principle of total reflection of light, and is generally made of glass or plastic. In the process of installing the optical fiber, the two ends of the optical fiber are not exposed to the external environment, so that the optical fiber is difficult to identify, and the optical fiber is mainly made of glass or plastic, so that the optical fiber cannot be judged by electrical equipment. Therefore, in order to facilitate identification of the optical fiber and splicing of the optical fiber during the cable laying process, identification of the optical fiber is required. At present, the optical fiber is usually colored by coating a layer of optical fiber coloring ink on the outer surface of the optical fiber, so as to perform identification.
The conventional colors of the coloring ink are 12, and if 24-core and above ribbon optical fibers are prepared, the optical fibers with repeated colors need to be processed. Fluorescent dye is added into the optical fiber coloring ink, so that one optical fiber of two optical fibers with repeated colors has a fluorescent effect and can be directly distinguished from the other optical fiber with the same color.
However, the fluorescent dye needs to be ground before adding the fluorescent dye into the optical fiber coloring ink, and the particle size of the fluorescent dye is difficult to be ground below the particle size required by international standards, so that the elasticity of the coating is reduced, the strength is weakened, and the signal attenuation of the prepared colored optical fiber is large.
Disclosure of Invention
The invention provides a fluorescent identification colored optical fiber and a preparation method thereof, which can solve the problems of poor performance, complex identification and large signal attenuation of the colored optical fiber in the related technology. The technical scheme is as follows:
in a first aspect, embodiments of the present invention provide a fluorescence-distinguishable colored optical fiber, including: the optical fiber comprises a fiber core, a cladding coated on the outer surface of the fiber core and a coating coated on the outer surface of the cladding; the coating comprises an inner layer, an outer layer and an ink layer, and the inner layer, the outer layer and the ink layer are sequentially coated on the outer surface of the cladding; the ink layer comprises the following components in percentage by mass: 0.001-2.5% of fluorescent whitening agent, 10-80% of acrylate oligomer, 5-50% of acrylic monomer, 0.1-15% of photoinitiator, 0.01-10% of active amine co-initiator, 0.01-10% of toner, 0.01-10% of flatting agent, 0.01-10% of defoaming agent and 0.01-10% of dispersing agent.
Specifically, the fluorescent brightener preferably includes at least one of stilbene fluorescent brighteners, coumarin fluorescent brighteners, azole fluorescent brighteners, and dicarboximide fluorescent brighteners.
Specifically, preferably, the stilbene fluorescent whitening agent includes at least one of triazine-type stilbene, bisamide-type stilbene and triazole-type stilbene; the coumarin fluorescent whitening agent comprises at least one of 3-carboxycoumarin, 4-methyl-7-aminocoumarin, 3-phenyl-7-aminocoumarin and heterocyclic coumarin; the azole fluorescent whitening agent comprises at least one of benzoxazole, benzimidazole, pyrazoline and other heterocyclic azole fluorescent whitening agents; the fluorescent brightener of the dicarboximide comprises phthalimide or naphthalimide.
Specifically, preferably, the acrylate oligomer includes at least one of epoxy acrylate, urethane acrylate, polyester acrylate, and polyether acrylate.
Specifically, the acrylic monomer preferably includes at least one of 1, 6-hexanediol diacrylate, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, and 2-phenoxyethyl acrylate.
Specifically, preferably, the photoinitiator includes at least one of a radical initiator, a cationic initiator, and an anionic initiator. .
Specifically, the radical initiator preferably includes at least one of 2,4, 6-trimethylbenzoyl diphenylphosphine oxide, 2-isopropylthioxanthone, phenylbis (2,4, 6-trimethylbenzoyl) phosphine oxide, 2, 4-diethylthiazolone, 2-methyl-1- [4- (methylthio) phenyl ] -2- (4-morpholinyl) -1-propanone, 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, and benzophenone.
Specifically, the toner preferably includes titanium dioxide, carbon black, phthalocyanine blue, phthalocyanine green, benzidine yellow, rubine 4B, permanent violet, or permanent red.
Specifically, the leveling agent is preferably at least one of an organosilicon leveling agent and an acrylic leveling agent, and the defoaming agent is at least one of a polyether modified organosilicon defoaming agent and a non-silicon polymer defoaming agent.
In a second aspect, the present invention provides a method for producing the colored optical fiber described above, the method comprising the steps of: mixing acrylate oligomer, acrylic monomer, photoinitiator, active amine co-initiator, toner, flatting agent, defoaming agent and dispersant according to the mass percentage of each component to obtain ink; adding a fluorescent whitening agent into the ink, and uniformly mixing to obtain mixed ink; and coating the mixed ink on the surface of the optical fiber, and curing to obtain the colored optical fiber.
The technical scheme provided by the invention can at least bring the following beneficial effects:
the fluorescent identification colored optical fiber provided by the embodiment of the invention has the advantages that the fluorescent whitening agent has vinyl bonds or oxazole groups, a fluorescent effect can be generated after light irradiates on the fluorescent whitening agent, and the fluorescent whitening agent cannot influence the elasticity, strength and other properties of the ink layer within the mass percentage range; based on CH in acrylate oligomers2The CHCOOR structure enables the cured ink to have high wear resistance, flexibility and adhesion; based on CH in acrylic monomers2The acrylic monomer has a low molecular weight, so that the acrylic monomer is mixed with the acrylate oligomer with a high molecular weight to effectively reduce the viscosity of the acrylate oligomer, further reduce the viscosity of an ink system and adjust the crosslinking density of the ink system; the photoinitiator can absorb energy with certain wavelength under the irradiation of light, thereby generatingFree radicals, cations and the like, and further can initiate the crosslinking and curing of the ink system; the active amine co-initiator has active alpha-H groups, so that the oxygen inhibition effect of the ink system can be effectively inhibited, and the ink system can achieve a better curing effect; different colors can be provided for the system through toner; based on that the leveling agent can migrate to the surface of the ink layer through compatibility with the oil phase, the interfacial tension of the ink layer is reduced, the ink layer obtains good leveling property, and the surface smoothness of the ink system is improved; the defoaming agent can reduce the surface tension of the ink system, thereby inhibiting the generation of bubbles in the ink system and accelerating the elimination of the generated bubbles; the dispersing agent can form an adsorption layer on the surface of the toner, increase the surface charge of the toner, increase the repulsive force among toner particles, uniformly disperse the toner in a system and further prevent the toner from settling or agglomerating. By the synergistic compounding of the components, the fluorescent identification colored optical fiber provided by the embodiment of the invention not only has a fluorescent effect, but also avoids the problem of signal attenuation; and the fluorescent whitening agent has good compatibility with other components in the ink layer, and can keep the original properties of the ink layer, such as elasticity, strength and the like unchanged.
Detailed Description
Unless defined otherwise, all technical terms used in the examples of the present invention have the same meaning as commonly understood by one of ordinary skill in the art.
Before explaining the embodiments of the present invention in detail, an application scenario of the embodiments of the present invention will be described.
The optical fiber is widely used in the fields of communication, medicine, decoration, automobiles, ships and the like, and has the advantages of wide frequency band, small loss, light weight, high speed, strong anti-interference capability and the like. The optical fiber comprises a bare fiber and a resin coating, wherein the bare fiber comprises a fiber core and a cladding, and the resin coating comprises an inner layer, an outer layer, an ink layer and a ribbon layer. Because the bare fiber is brittle and easy to break and is easy to scratch by moist gas and external force, at least one layer of resin coating is often coated on the surface of the bare fiber, and the coating is helpful for preventing the loss of optical fiber signals, prolonging the service life of the optical fiber and improving the performance of the optical fiber.
As optical fibers enter subscriber loop systems, the demand for fiber core count is increasing due to the increasing demand for fiber speed from the systems, particularly for high core count cable systems and ribbon cable systems, and the demand for 24-core, 36-core, or more ribbon fibers is increasing. Most of the commonly used ribbon optical fibers at present are composed of 12 cores, each of the 12 colors accounts for 1, and if 24 cores or more ribbon optical fibers are prepared, the optical fibers with the same color need to be processed and identified. The processing identification method adopted at present is to add a color ring, i.e. to punch a color ring on one of two optical fibers with the same color, if 36 cores are adopted, 2 color rings are needed to be punched, thus increasing the process flow. In view of the above, embodiments of the present invention provide a colored optical fiber, which can solve the above technical problems.
In a first aspect, embodiments of the present invention provide a fluorescence-distinguishable colored optical fiber, including: the optical fiber comprises a fiber core, a cladding coated on the outer surface of the fiber core and a coating coated on the outer surface of the cladding; the coating comprises an inner layer, an outer layer and an ink layer, wherein the inner layer, the outer layer and the ink layer are sequentially coated on the outer surface of the coating; the ink layer comprises the following components in percentage by mass: 0.001-2.5% of fluorescent whitening agent, 10-80% of acrylate oligomer, 5-50% of acrylic monomer, 0.1-15% of photoinitiator, 0.01-10% of active amine co-initiator, 0.01-10% of toner, 0.01-10% of flatting agent, 0.01-10% of defoaming agent and 0.01-10% of dispersing agent.
The fluorescent identification colored optical fiber provided by the embodiment of the invention has the advantages that the fluorescent whitening agent has vinyl bonds or oxazole groups, a fluorescent effect can be generated after light irradiates on the fluorescent whitening agent, and the fluorescent whitening agent cannot influence the elasticity, strength and other properties of the ink layer within the mass percentage range; based on CH in acrylate oligomers2The CHCOOR structure enables the cured ink to have high wear resistance, flexibility and adhesion; based on CH in acrylic monomers2The CHCOOR structure can effectively reduce the viscosity of an ink system and adjust the crosslinking density of the ink system; the photoinitiator can be irradiated by lightAbsorbing energy with certain wavelength to generate free radicals, cations and the like, and further initiating the cross-linking and curing of the ink system; the active amine co-initiator has active alpha-H groups, so that the oxygen inhibition effect of the ink system can be effectively inhibited, and the ink system can achieve a better curing effect; different colors can be provided for the system through toner; based on that the leveling agent can migrate to the surface of the ink layer through compatibility with the oil phase, the interfacial tension of the ink layer is reduced, the ink layer obtains good leveling property, and the surface smoothness of the ink system is improved; the defoaming agent can reduce the surface tension of the ink system, thereby inhibiting the generation of bubbles in the ink system and accelerating the elimination of the generated bubbles; the dispersing agent can form an adsorption layer on the surface of the toner, increase the surface charge of the toner, increase the repulsive force among toner particles, uniformly disperse the toner in a system and further prevent the toner from settling or agglomerating. By the synergistic compounding of the components, the fluorescent identification colored optical fiber provided by the embodiment of the invention not only has a fluorescent effect, but also avoids the problem of signal attenuation; and the fluorescent whitening agent has good compatibility with other components in the ink layer, and can keep the original properties of the ink layer, such as elasticity, strength and the like unchanged.
In the embodiment of the present invention, the mass percentage of the fluorescent whitening agent is 0.001% to 2.5%, and as an example, the mass percentage of the fluorescent whitening agent may be 0.001%, 0.005%, 0.008%, 0.01%, 0.02%, 0.05%, 0.06%, 0.08%, 0.09%, 0.1%, 0.12%, 0.14%, 0.15%, 0.2%, 0.21%, 0.23%, 0.25%, 0.28%, 0.3%, 0.32%, 0.35%, 0.38%, 0.4%, 0.42%, 0.45%, 0.48%, 0.5%, 0.8%, 0.1%, 0.12%, 0.13%, 1%, 1.05%, 1.1%, 1.15%, 1.2%, 1.5%, 1.8%, 2%, 2.05%, 2.1%, 2.15%, 2.2%, 2.25%, 2.3%, 2.35%, 2.4%, 2.45%, or 2.5%. The mass percentage of the acrylate oligomer is 10% to 80%, and as an example, the mass percentage of the acrylate oligomer may be 10%, 12%, 15%, 18%, 20%, 22%, 25%, 28%, 30%, 32%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, or the like. The mass percentage of the acrylic monomer is 5% to 50%, and as an example, the mass percentage of the acrylic monomer may be 5%, 7%, 8%, 8.5%, 9%, 10%, 11%, 12%, 13%, 15%, 18%, 20%, 25%, 28%, 30%, 32%, 35%, 37%, 38%, 40%, 42%, 45%, 48%, 50%, or the like. The photoinitiator may be 0.1% to 15% by mass, and as an example, the photoinitiator may be 0.1% by mass, 0.5% by mass, 0.8% by mass, 1% by mass, 1.1% by mass, 1.3% by mass, 1.5% by mass, 1.7% by mass, 1.8% by mass, 2% by mass, 2.1% by mass, 2.3% by mass, 2.5% by mass, 3% by mass, 5% by mass, 6% by mass, 7% by mass, 8% by mass, 9% by mass, 10% by mass. The mass percentage of the reactive amine co-initiator is 0.01% to 10%, and as an example, the mass percentage of the reactive amine co-initiator may be 0.01%, 0.03%, 0.05%, 0.1%, 0.12%, 0.15%, 0.17%, 0.18%, 0.2%, 0.21%, 0.23%, 0.25%, 0.3%, 0.32%, 0.35%, 0.4%, 0.45%, 0.5%, 0.7%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.5%, 2.8%, 3%, 3.2%, 3.5%, 3.8%, 4%, 4.2%, 4.5%, 4.8%, 5.2%, 5.5%, 5.8%, 6%, 6.2%, 6.5%, 6.8%, 7%, 8%, 9%, 10%, or the like. The mass percentage of the toner is 0.01% to 10%, and as an example, the mass percentage of the toner may be 0.01%, 0.03%, 0.05%, 0.1%, 0.12%, 0.15%, 0.17%, 0.18%, 0.2%, 0.21%, 0.23%, 0.25%, 0.3%, 0.32%, 0.35%, 0.4%, 0.45%, 0.5%, 0.7%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.5%, 2.8%, 3%, 3.2%, 3.5%, 3.8%, 4%, 4.2%, 4.5%, 4.8%, 5%, 5.2%, 5.5%, 5.8%, 6%, 6.2%, 6.5%, 6.8%, 7%, 8%, 9%, 10%, or the like. The mass percentage of the leveling agent is 0.01% to 10%, and as an example, the mass percentage of the leveling agent may be 0.01%, 0.03%, 0.05%, 0.1%, 0.12%, 0.15%, 0.17%, 0.18%, 0.2%, 0.21%, 0.23%, 0.25%, 0.3%, 0.32%, 0.35%, 0.4%, 0.45%, 0.5%, 0.7%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.5%, 2.8%, 3%, 3.2%, 3.5%, 3.8%, 4%, 4.2%, 4.5%, 4.8%, 5%, 5.2%, 5.5%, 5.8%, 6%, 6.2%, 6.5%, 6.8%, 7%, 8%, 9%, or 10%, or the like. The defoaming agent is 0.01 to 10% by mass, and as an example, the defoaming agent may be 0.01%, 0.03%, 0.05%, 0.1%, 0.12%, 0.15%, 0.17%, 0.18%, 0.2%, 0.21%, 0.23%, 0.25%, 0.3%, 0.32%, 0.35%, 0.4%, 0.45%, 0.5%, 0.7%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.5%, 2.8%, 3%, 3.2%, 3.5%, 3.8%, 4%, 4.2%, 4.5%, 4.8%, 5%, 5.2%, 5.5%, 5.8%, 6%, 6.2%, 6.5%, 6.8%, 7%, 8%, 9%, 10% by mass or the like. The dispersant may be 0.01 to 10% by mass, and as an example, the dispersant may be 0.01%, 0.03%, 0.05%, 0.1%, 0.12%, 0.15%, 0.17%, 0.18%, 0.2%, 0.21%, 0.23%, 0.25%, 0.3%, 0.32%, 0.35%, 0.4%, 0.45%, 0.5%, 0.7%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.5%, 2.8%, 3%, 3.2%, 3.5%, 3.8%, 4%, 4.2%, 4.5%, 4.8%, 5%, 5.2%, 5.5%, 5.8%, 6%, 6.2%, 6.5%, 6.8%, 7%, 8%, 9%, or 10% by mass.
When the components are in the proportion range, the components can cooperate with each other, so that the colored optical fiber has good curing degree, mechanical strength, low attenuation and other properties, and also has a fluorescent effect under the irradiation of ultraviolet light, and is easy to distinguish.
In the examples of the present invention, the degree of cure is the percentage of the acrylate unsaturated groups in the acrylate oligomer reacted to the total acrylate unsaturated groups in the acrylate oligomer. The magnitude of the degree of cure is directly related to the properties of the colored optical fiber produced, such as mechanical properties, in-situ modulus, fatigue strength, and the like. Generally, the higher the degree of cure of a colored optical fiber, the better the overall performance.
Alternatively, the fluorescent whitening agent includes at least one of a stilbene fluorescent whitening agent, a coumarin fluorescent whitening agent, an azole fluorescent whitening agent, and a dicarboximide fluorescent whitening agent.
It should be noted that the fluorescent whitening agent can excite incident light to generate fluorescence, so that the dyed substance can obtain an effect similar to that of fluorite flash, and the substance seen by naked eyes can be white. In the embodiment of the invention, the fluorescent whitening agent can be one of stilbene fluorescent whitening agents; the fluorescent whitening agent can also be a mixture of a stilbene fluorescent whitening agent and a coumarin fluorescent whitening agent, and the mixing ratio can be 1: 1; the fluorescent whitening agent can also be a mixture of three of coumarin fluorescent whitening agent, azole fluorescent whitening agent and dicarboximide fluorescent whitening agent, and the mixing ratio can be 2: 1: 1.
it should be noted that the embodiment of the present invention is not limited to the above combination of fluorescent whitening agents, and the ratio of the selected combination of fluorescent whitening agents is not limited to this.
Optionally, the stilbene fluorescent whitening agent comprises at least one of triazine-type stilbene, bisamide-type stilbene and triazole-type stilbene; the coumarin fluorescent whitening agent comprises at least one of 3-carboxycoumarin, 4-methyl-7-substituted aminocoumarin, 3-phenyl-7-substituted aminocoumarin and heterocyclic coumarin; the azole fluorescent whitening agent comprises at least one of benzoxazole, benzimidazole and pyrazoline heterocyclic azole fluorescent whitening agent; the fluorescent brightener of the dicarboximide type comprises phthalimide or naphthalimide.
In the embodiment of the present invention, the stilbene fluorescent whitening agent may be one of triazine-type stilbene; the stilbene fluorescent whitening agent can also be a mixture of diamide stilbene and triazole stilbene, and the mixing ratio can be 1: 1. the coumarin fluorescent whitening agent can be 3-carboxyl coumarin; the coumarin fluorescent whitening agent can also be a mixture of 3-phenyl-7-substituted aminocoumarin and heterocyclic coumarin, and the mixing ratio can be 2: 1. the azole fluorescent whitening agent is not limited to the several heterocyclic azole fluorescent whitening agents provided by the embodiments of the present invention, wherein the azole fluorescent whitening agent can be one of benzoxazole; the azole fluorescent whitening agent may be a mixture of two of benzimidazole and pyrazoline, and may be, for example, 1: 1.5. the dicarboximide fluorescent whitening agent can be one of phthalimides; the fluorescent brightener of the dicarboximide type may be a mixture of two of phthalimide and naphthalimide, and the mixing ratio may be, for example, 1.2: 1.
it should be noted that, in the embodiment of the present invention, which combination is selected for the stilbene fluorescent whitening agent, the coumarin fluorescent whitening agent, the azole fluorescent whitening agent, and the dicarboximide fluorescent whitening agent is not limited thereto, and the ratio between the selected combination of the components of the fluorescent whitening agent is not limited thereto.
Optionally, the acrylate oligomer comprises at least one of an epoxy acrylate, a urethane acrylate, a polyester acrylate, and a polyether acrylate.
It is noted that the acrylate oligomer determines the abrasion resistance, flexibility and adhesion of the cured ink. These acrylate oligomers are all CH2The cure rate of the colored optical fiber provided by the embodiments of the present invention can be significantly improved after curing. Illustratively, the acrylate oligomer in the colored optical fiber provided by the embodiment of the present invention may be one of epoxy acrylates; the acrylate oligomer may also be a mixture of both epoxy acrylate and urethane acrylate, and the mixing ratio may be, for example, 7: 6; the acrylate oligomer may also be a mixture of both epoxy acrylate and polyether acrylate, and illustratively, the mixing ratio may be 4: 3 or 5: 9 or 28: 45, a first step of; the acrylate oligomer may be a mixture of both epoxy acrylate and polyester acrylate, and may be mixed in a ratio of, for example, 1: 1 or 3: 4.
it should be noted that the embodiment of the present invention is not limited to the combination of the above acrylate oligomers, and the ratio of the selected combination of the components of the acrylate oligomers is not limited to this.
Preferably, when the ink layer of the colored optical fiber is required to have high strength and high weather resistance, the acrylateThe oligomer is at least one of epoxy acrylate or urethane acrylate. Since both acrylate oligomers contain acrylic functionality, i.e., both acrylate oligomers are CH2The cured acrylate oligomer has high strength and high weather resistance, so that the ink layer has high strength and high weather resistance, and the colored optical fiber has high strength and high weather resistance.
Alternatively, the acrylic monomer includes at least one of 1, 6-hexanediol diacrylate, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, and 2-phenoxyethyl acrylate.
Acrylic monomers are important organic synthetic raw materials and synthetic resin monomers, and are vinyl monomers having a very high polymerization rate. The main structure of the acrylic monomers provided by the embodiment of the invention is CH2The CHCOOR can effectively reduce the viscosity of the ink system and adjust the crosslinking density of the ink system.
For example, the acrylic monomer in the colored optical fiber provided by the embodiment of the present invention may be one of 1, 6-hexanediol diacrylate; the acrylic monomer may be a mixture of 1, 6-hexanediol diacrylate and pentaerythritol tetraacrylate, and the mixing ratio may be, for example, 3: 4; the acrylic monomer may be a mixture of 1, 6-hexanediol diacrylate and trimethylolpropane triacrylate, and the mixing ratio may be, for example, 5: 11 or 1: 1 or 10: 7 or 5: 8 or 5: 8.5.
it should be noted that the embodiment of the present invention is not limited to the combinations of the acrylic monomers, and the ratio of the combinations of the components of the selected acrylic monomers is not limited to this.
Optionally, the photoinitiator comprises at least one of a free radical initiator, a cationic initiator, and an anionic initiator.
The photoinitiator is also called a photosensitizer or a photocuring agent, and is a compound capable of absorbing energy with a certain wavelength in an ultraviolet region (250-420 nm) or a visible light region (400-800 nm) to generate free radicals, cations and the like so as to initiate polymerization, crosslinking and curing of monomers. By adding the photoinitiator in the ink layer, the crosslinking degree of the ink system can be increased, and the curing degree of the ink system is further improved. Illustratively, the photoinitiator in the colored optical fiber provided by the embodiment of the invention can be one of free radical initiators; the photoinitiator may also be a mixture of both a radical initiator and a cationic initiator, and, for example, the mixing ratio may be 2: 1.
it should be noted that the embodiment of the present invention is not limited to the combination of the above photoinitiators, and the ratio between the combination of the components of the selected photoinitiator is not limited thereto.
Alternatively, the free radical initiator comprises at least one of 2,4, 6-trimethylbenzoyldiphenylphosphine oxide, 2-isopropylthioxanthone, phenylbis (2,4, 6-trimethylbenzoyl) phosphine oxide, 2, 4-diethylthiazolone, 2-methyl-1- [4- (methylthio) phenyl ] -2- (4-morpholinyl) -1-propanone, 1-hydroxycyclohexylphenylketone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, and benzophenone.
It should be noted that the radical initiator absorbs energy with a certain wavelength in the ultraviolet region or visible region to generate radicals, thereby initiating the polymerization of the monomer to crosslink the cured compound. Compared with cationic initiators and anionic initiators, the free radical initiator has a faster curing speed and is more suitable for being used in optical fiber coating systems needing high-speed curing. Illustratively, the radical initiator in the colored optical fiber provided by the embodiment of the present invention may be one of 2,4, 6-trimethylbenzoyldiphenylphosphine oxide; the free radical initiator can also be a mixture of three components of 2,4, 6-trimethylbenzoyl diphenyl phosphine oxide, 1-hydroxycyclohexyl phenyl ketone and benzophenone, and the mixing ratio is 2: 3: 2; the free radical initiator can also be a mixture of three of 2,4, 6-trimethylbenzoyl diphenyl phosphine oxide, 2-methyl-1- [4- (methylthio) phenyl ] -2- (4-morpholinyl) -1-acetone and benzophenone in a mixing ratio of 2: 2: 3 or 2: 2: 2.5; the free radical initiator can also be a mixture of three of 2,4, 6-trimethylbenzoyl diphenyl phosphine oxide, 2-hydroxy-2-methyl-1-phenyl-1-acetone and benzophenone in a mixing ratio of 2: 2: 3; the free radical initiator can also be a mixture of three of 2-methyl-1- [4- (methylthio) phenyl ] -2- (4-morpholinyl) -1-acetone, 2-hydroxy-2-methyl-1-phenyl-1-acetone and benzophenone in a mixing ratio of 3: 2: 3.
it should be noted that the embodiment of the present invention is not limited to the above-mentioned combination of the radical initiators, and the ratio of the selected combination of the components of the radical initiator is not limited thereto.
Alternatively, the toner includes titanium dioxide, carbon black, phthalocyanine blue, phthalocyanine green, benzidine yellow, rubine 4B, permanent violet, or permanent red.
The toner is divided into organic toner and inorganic toner, which mainly provide different colors for the system, wherein the organic toner is an organic mixture composed of hydrocarbon, and has bright color and high tinting strength, and the inorganic toner is a toner which does not contain metal or organic matter, and has the advantages of strong covering power, solvent resistance, heat resistance, high dispersibility and the like. The titanium dioxide provided in the embodiment of the invention is inorganic toner, and the carbon black, the phthalocyanine blue, the phthalocyanine green, the benzidine yellow, the precious red 4B, the permanent violet or the permanent red are organic toner. For example, the toner in the colored optical fiber provided by the embodiment of the invention can be phthalocyanine blue; the toner may also be one of phthalocyanine green; the toner can also be one of permanent red; the toner may also be one of carbon black; the toner can also be one of benzidine yellow; the toner can also be one of titanium dioxide; the toner can also be a mixture of titanium dioxide, benzidine yellow and permanent red, and the mixing proportion can be 5: 4: 1; the toner can also be a mixture of titanium dioxide, phthalocyanine blue and green, and the mixing proportion can be 5: 2: 3.
it should be noted that the embodiment of the present invention is not limited to the combination of the selected toners, and the ratio between the selected toner components is not limited to this.
Optionally, in the case that the leveling agent is an organic silicon leveling agent or an acrylic leveling agent, the defoaming agent is a polyether modified organic silicon defoaming agent or a non-silicon polymer defoaming agent.
It should be noted that the leveling agent is a commonly used paint additive, which can promote the paint to form a flat, smooth and uniform coating film in the drying film-forming process. The organic silicon leveling agent or the acrylic leveling agent provided by the embodiment of the invention migrates to the surface of the ink layer through compatibility, so that the surface properties such as the interfacial tension of the ink layer are influenced, and the ink layer obtains good leveling property. For example, the leveling agent in the colored optical fiber provided by the embodiment of the present invention may be one of organic silicon leveling agents; the leveling agent can be a mixture of an organic silicon leveling agent and an acrylic leveling agent, and the mixing ratio can be 1: 1. the embodiment of the present invention is not limited to the combination of the leveling agents, and the ratio of the combination of the components of the leveling agent is not limited to the combination.
As an example, the silicone-based leveling agent may be polydimethylsiloxane, polyether polyester-modified organosiloxane, or the like. The acrylic leveling agent may be an acrylate leveling agent or the like.
Alternatively, the defoaming agent is a substance that suppresses the generation of foam or eliminates foam that has been generated. The two defoaming agents provided in the embodiment of the invention not only can rapidly destroy the generated foam, but also can prevent the foam from generating again in a relatively long time. Illustratively, the defoaming agent in the colored optical fiber provided by the embodiment of the present invention may be one of polyether modified silicone defoaming agents; the defoaming agent can also be a mixture of a polyether modified organic silicon defoaming agent and a non-silicon polymer defoaming agent, and the mixing ratio can be 1: 1. the embodiment of the present invention is not limited to the combination of the above-mentioned defoaming agents, and the ratio of the combination of the components of the defoaming agent is not limited to this.
Optionally, the polyether modified silicone defoaming agent is obtained by adding a polyether chain segment into siloxane molecules, so that the polyether modified silicone defoaming agent has the advantages of being capable of inhibiting foaming of silicone and being high in defoaming speed, and also has the advantages of being capable of resisting acid and alkali, resisting high temperature and the like.
Optionally, the active amine co-initiator can effectively inhibit the ink system from generating an oxygen inhibition effect, so that the ink system achieves a better curing effect. Illustratively, the reactive amine co-initiator in the colored optical fiber provided by the embodiments of the present invention may be an acrylated reactive amine co-initiator.
Based on the above, in the colored optical fiber provided by the embodiment of the invention, each component can fully exert its own effect, and cooperate with other components, so that the colored optical fiber has a fluorescence effect, and can generate a fluorescence phenomenon under the irradiation of a light source with a wavelength of 300-400nm, thereby achieving an effect of easy identification and avoiding the problem of signal attenuation of the colored optical fiber.
In a second aspect, the present invention provides a method for producing the colored optical fiber, the method comprising the steps of: mixing acrylate oligomer, acrylic monomer, photoinitiator, active amine co-initiator, toner, flatting agent, defoaming agent and dispersant according to the mass percentage of each component to obtain ink; adding a fluorescent whitening agent into the ink, and uniformly mixing to obtain mixed ink; and coating the mixed ink on the surface of the optical fiber, and curing to obtain the colored optical fiber.
It should be noted that the optical fiber in the manufacturing process refers to an optical fiber that has been coated with an inner layer and an outer layer.
The mixing sequence can be that acrylate oligomer, acrylic monomer, photoinitiator, active amine co-initiator, toner, leveling agent, defoaming agent and dispersant are added in sequence and mixed; the mixing sequence can also be that firstly the acrylate oligomer and the acrylic monomer are added, and then the toner, the flatting agent, the defoaming agent, the dispersing agent, the photoinitiator and the active amine co-initiator are added in sequence. The mixing sequence in the embodiment of the present invention is not limited to this. The preparation method of the colored optical fiber has simple operation process and easy control, thereby being suitable for large-scale industrial production.
In order to make the technical solutions and advantages of the present invention clearer, the following will explain in detail by means of alternative embodiments.
It should be noted that the optical brightener and the photoinitiator referred to in the following optional examples are respectively given by the following abbreviations:
2, 5-bis- (5-tert-butyl-2-benzoxazolyl) thiophene: an optical brightener OB;
ethyl 5, 6-benzocoumarin-3-carboxylate: a fluorescent whitening agent PEB;
sodium 4,4 '-bis- (6-anilino-4-morpholine-1, 3, 5-triazine-2-amino) -stilbene 2,2' -disulfonate: fluorescent whitening agent DMS;
2,4, 6-trimethylbenzoyldiphenylphosphine oxide: TPO;
2-methyl-1- [4- (methylthio) phenyl ] -2- (4-morpholinyl) -1-propanone: 907;
benzophenone: BP;
1-hydroxycyclohexyl phenyl ketone: 184, a first electrode;
2-hydroxy-2-methyl-1-phenyl-1-propanone: 1173.
example 1
This example 1 provides a green colored ink for preparing a fluorescence-distinguishable colored optical fiber, wherein the colored ink includes 1% by mass of a fluorescent whitening agent OB, and the composition of the colored ink is shown in table 1 below:
TABLE 1
Example 2
This example 2 provides a green colored ink for preparing a fluorescence-distinguishable colored optical fiber, wherein the colored ink includes 2% by mass of a fluorescent whitening agent PEB, and the composition of the colored ink is shown in table 2 below:
TABLE 2
Example 3
This example provides a green colored ink for preparing a fluorescence identifiable colored optical fiber, wherein the colored ink comprises 40% by mass of an acrylate oligomer, and the composition of the colored ink is shown in table 3 below:
TABLE 3
Example 4
This example provides a green colored ink for preparing a fluorescence identifiable colored optical fiber, wherein the colored ink comprises 30% by mass of an acrylate oligomer, and the composition of the colored ink is shown in table 4 below:
TABLE 4
Comparative example 1
The present comparative example 1 provides a green colored ink for preparing a fluorescence-distinguishable colored optical fiber, wherein the colored ink contains no fluorescent whitening agent and the composition of the colored ink is shown in the following table 5:
TABLE 5
Comparative example 2
This comparative example 2 provides a prior art green pigmented ink for making a pigmented optical fiber, wherein the pigmented ink includes 2% by weight of a fluorescent toner, and the composition of the pigmented ink is shown in table 6 below:
TABLE 6
Comparative example 3
This comparative example 3 provides a blue colored ink for preparing a fluorescence-distinguishable colored optical fiber, wherein the colored ink comprises 2.5% by mass of a fluorescent whitening agent PEB, and the composition of the colored ink is shown in table 7 below:
TABLE 7
The inks obtained in examples 1 to 4 and comparative examples 1 to 3 were applied to the surface of an optical fiber by a fiber coloring machine using a UV lamp of 7500W (Watt) power at a speed of 1200m/min (m/min) at a diameter of 0.260mm (mm) to perform coloring and curing, thereby obtaining a colored optical fiber capable of fluorescent identification.
The obtained fluorescent-identifiable colored optical fibers were subjected to performance tests, wherein the abbreviated symbols of the test items in the examples are shown in table 8, and all the test methods are as follows:
TABLE 8
| Parameter code | Performance test parameters |
| V | Elongation at break (ink system) |
| d | Particle size (ink system) |
| G1200 | Production speed 1200m/min curing degree (colored optical fiber) |
| G1500 | Production speed 1500m/min curing degree (colored optical fiber) |
| a | Optical fiber signal attenuation at 1550nm |
Wherein, the performance parameter test conditions are as follows:
elongation at break:
reference is made to GB/T1040.1-2006, GB/T1040.2-2006 and GB/T1040.3-2006. The standard environment of the preparation of the sample, the regulation of the state of the sample and the test meets the following requirements:
a) and (3) test environment: (23 + -1) deg.C;
a) relative humidity: (50 ± 5)%;
b) coating the ink sample on a clean glass plate to prepare a film;
c) sample thickness: (75 ± 10) m (meter);
d) sample size: 80mm × 10 mm;
e) curing radiation energy: adopts double-sided curing, and the front side is more than or equal to 1.0J/cm2(Joule/square centimeter) and back surface of more than or equal to 1.0J/cm2；
f) Stretching speed: 5mm/min (mm/min).
Particle size:
the method is carried out at a temperature of 23 +/-2 ℃ by using a 0-25 mu m (micrometer) scraper fineness meter.
Degree of cure of colored optical fiber at drawing speed of 1200 m/min:
scanning the infrared spectrum of the ink by an infrared spectrometer, integrating the absorption peak of 1410cm-1 in the infrared spectrum, then integrating the standard absorption peak (such as the absorption peak of 1730 cm-1), and setting the integral ratio of the areas of the two absorption peaks S1410/S1730 as: AU liquid;
stacking the colored optical fiber with the drawing speed of 1200m/min into 8 layers, scanning the infrared spectrum by an infrared spectrometer, integrating the absorption peak of 1410cm < -1 > in the infrared spectrum, then integrating the standard absorption peak (such as the absorption peak of 1730cm < -1 >), and determining the integration ratio S1410/S1730 of the areas of the two absorption peaks as: AU samples;
the calculation formula of the degree of solidification is as follows: (AU liquid-AU sample)/AU liquid) 100%;
wherein the test temperature is (23 +/-1) DEG C.
Degree of cure of colored optical fiber at drawing speed of 1500 m/min:
scanning the infrared spectrum of the ink by an infrared spectrometer, integrating the absorption peak of 1410cm-1 in the infrared spectrum, then integrating the standard absorption peak (such as the absorption peak of 1730 cm-1), and setting the integral ratio of the areas of the two absorption peaks S1410/S1730 as: AU liquid;
stacking the colored optical fibers with the drawing speed of 1500m/min into 8 layers, scanning the infrared spectrum by an infrared spectrometer, integrating the absorption peak of 1410cm & lt-1 & gt in the infrared spectrum, then integrating the standard absorption peak (such as the absorption peak of 1730cm & lt-1 & gt), and determining the integration ratio S1410/S1730 of the areas of the two absorption peaks as: AU samples;
the calculation formula of the degree of solidification is as follows: (AU liquid-AU sample)/AU liquid 100%;
wherein the test temperature is (23 +/-1) DEG C.
Signal attenuation of the colored fiber at 1550nm band:
1) preparation of a length of not shorter than 1km (kilometer) or longer (generally one colored fiber reel length: 25km), both ends of the colored optical fiber sample were stripped of the coating layer, placed in an optical fiber jig, and a flat end face was cut out with a special optical fiber cutter.
2) Connecting the outer end optical fiber of the test coloring optical fiber disc with the transmitting end of the instrument through a special fixture, connecting the inner end optical fiber of the test coloring optical fiber disc with the receiving end of the instrument through the special fixture, checking the focusing state of the light receiving end, and adjusting the position and the focal length if the curve is not in the center of the screen or the end surface of the coloring optical fiber is not clear enough.
3) A small ring with the radius of 30mm is punched at the injection end of the colored optical fiber, the influence of an LP11 mode is filtered, and the transmission power at the moment is tested. Keeping the injection state of the light source unchanged (a small ring with the radius of 30mm is formed at the injection end of the colored optical fiber), cutting the tested colored optical fiber sample into a sample with the length of 2m, connecting the colored optical fiber to the receiving end of the instrument through a special clamp, checking the focusing state of the light receiving end, and adjusting the position and the focal length if the curve is not in the middle of the screen or the end face of the colored optical fiber is not clear enough.
4) The transmission power at this time is tested. And comparing the two transmission power test curves, and analyzing and processing data to obtain the attenuation spectrum characteristic of the colored optical fiber in the 1550nm waveband.
The properties of the inks and colored optical fibers measured during the test are shown in table 9 below:
TABLE 9
| Sample (I) | V | d | G1200 | G1500 | a |
| Example 1 | 8％ | 0.7μm | 92％ | 89％ | 0.175db |
| Example 2 | 9％ | 0.6μm | 91％ | 88％ | 0.186db |
| Example 3 | 7％ | 0.6μm | 90％ | 88％ | 0.174db |
| Example 4 | 8％ | 0.7μm | 90％ | 88％ | 0.177db |
| Comparative example 1 | 4％ | 0.7μm | 85％ | 83％ | 0.223db |
| Comparative example 2 | 4％ | 3.5μm | 80％ | 77％ | 0.780db |
| Comparative example 3 | 8％ | 0.8μm | 82％ | 79％ | 0.245db |
By comparing examples 1, 2, 3 and 4 with comparative example 1, it can be seen that in comparative example 1 where the acrylate oligomer content is 30%, the elongation at break V of the colored optical fiber is lower, the degrees of curing G1200 and G1500 are lower, and the signal attenuation a is higher, and thus it can be seen that when the acrylate oligomer content should be lower than 30% by mass of the formulation, the ink system has no advantage in performance, and when the acrylate oligomer content in the ink system described in the present invention is in the range of 35% to 80%, the elongation at break V of the colored optical fiber is faster, the degrees of curing G1200 and G1500 are higher, and the signal attenuation a is lower.
By comparing examples 1, 2, 3 and 4 with comparative example 2, it can be seen that the fluorescent green powder added in comparative example 2 has a particle diameter d increased by more than 5 times compared with examples 1 to 4, an elongation at break V decreased by more than 40%, and the degrees of curing G1200 and G1500 were also significantly smaller, and the signal attenuation a was significantly increased.
Therefore, the ink provided by the embodiment of the invention has a lower particle size and a higher elongation at break V, and the colored optical fiber provided by the embodiment of the invention also has better curing degree and attenuation performance.
As can be seen from Table 9, in comparative example 3 in which the amount of the fluorescent whitening agent added was 3%, the degrees of cure G1200 and G1500 and the signal attenuation a of the colored optical fiber were also slightly affected.
Therefore, the fluorescent whitening agent in the colored optical fiber provided by the embodiment of the invention can be well compatible with the ink system, and the addition amount of the fluorescent whitening agent is less than 3%, and the colored optical fiber still has lower signal attenuation a, and is preferably not more than 2.5%.
The fluorescent whitening agent with the mass percentage is added for more clear expression, so that the colored optical fiber can obviously generate a fluorescent effect, and the colored optical fiber is further identified and distinguished. Further description is provided by examples 5-20.
The base optical fibers A and B used in examples 5 to 20 below were each an optical fiber having an inner and outer coating layer.
The optical fiber A is a self-made optical fiber, the fiber core and the cladding of the optical fiber A are made of silicon dioxide, and the inner layer coating of the optical fiber A is an optical fiber inner layer coated with resin series products KG 100-1D; the outer coating is an optical fiber outer coating resin series product KG 200-2. The diameter of the fiber was about 245 μm. The optical fiber B is a self-made optical fiber, the material of the fiber core and the material of the cladding are both silicon dioxide, and the inner layer coating of the optical fiber is the optical fiber inner layer coated with the resin series product KG 100-1Y-1; the outer coating is an optical fiber outer coating resin series product KG 200-2Y. The diameter of the fiber was about 245 μm.
Example 5
This example 5 provides a fluorescence-recognizable colored optical fiber with a blue ink layer as the outermost layer and a fluorescent whitening agent in the ink layer, and the preparation method thereof is as follows:
35% of epoxy acrylate, 30% of urethane acrylate, 9% of 1, 6-hexanediol diacrylate, 12% of pentaerythritol tetraacrylate, 2% of TPO, 3% of 184, 2% of BP, 3% of an active amine co-initiator, 2% of phthalocyanine blue, 0.5% of polydimethylsiloxane, 0.5% of an acrylate leveling agent and 0.5% of a BYK-163 dispersing agent are mixed in percentage by mass to obtain a blue ink 1 bottle for preparing an ink layer. And taking out the half bottle of blue ink, adding 0.5 mass percent of fluorescent brightener PEB into the taken-out half bottle of blue ink, uniformly stirring to obtain mixed ink, and finishing coloring and curing the mixed ink on the surface of a part of the optical fiber A by using a UV lamp tube with 7500W power through an optical fiber coloring machine at the speed of 1200m/min and the diameter of 0.260mm to form the fluorescent recognizable blue colored optical fiber containing the fluorescent brightener PEB, wherein the part of the optical fiber A is replaced by a No. 1 optical fiber. And (3) carrying out coloring and curing on the surface of a part of the B optical fiber by using a UV lamp tube with the power of 7500W through an optical fiber coloring machine by using the half bottle blue ink without adding the fluorescent whitening agent PEB at the speed of 1200m/min and the diameter of 0.260mm to obtain a common blue optical fiber, and replacing the part of the B optical fiber by a No. 2 optical fiber.
The optical fiber A which is not coated with blue ink, the optical fiber B which is not coated with blue ink, the optical fiber No. 1 and the optical fiber No. 2 are respectively irradiated by using a fluorescence detection pen with the wavelength of 330-410nm, and the results are as follows: no. 1 optical fiber shows blue fluorescence under the fluorescence detection pen, and the A optical fiber, the B optical fiber and the No. 2 optical fiber have no obvious change under the fluorescence detection pen. Therefore, the colored optical fiber provided by the embodiment of the invention can perform fluorescence identification.
Example 6-example 11
The fluorescence effects of colored optical fibers prepared according to the method for preparing colored optical fibers of example 5, using inks of different colors, containing the same amount of fluorescent whitening agent or different amounts of fluorescent whitening agent, are shown in examples 6-11. The ink compositions used in examples 6 to 11 were prepared according to the mother liquor 1 shown in Table 10 except that the ink compositions used in examples 6 to 11 were different in terms of the mass percentages of the toner and the fluorescent whitening agent.
Watch 10
The specific differences and final test results in examples 6-11 can be seen in table 11.
TABLE 11
It can be seen from table 11 that, regardless of whether the color of the toner in the ink layer is the same or not, the content of the fluorescent whitening agent is the same or not, as long as the ink layer of the colored optical fiber contains the fluorescent whitening agent, when the fluorescent detection pen is used for irradiation, the colored optical fiber has a fluorescent effect, and the identification is convenient.
Examples 12 to 19
The fluorescent effect of colored optical fibers prepared according to the method for preparing colored optical fibers in example 5, using inks of different colors, with different amounts of fluorescent whitening agent, is shown in examples 12-19. The ink compositions used in examples 12-19 were formulated as mother liquor 2 in Table 12, except that the optical brightener and the optical brightener were different in mass percent of the ink.
TABLE 12
The specific differences and final test results in examples 12-19 can be seen in table 13.
Watch 13
As can be seen from table 13, when the ink layer of the colored optical fiber contains the fluorescent whitening agent, no matter whether the type and content of the fluorescent whitening agent are the same or not, the colored optical fiber has a fluorescent effect when irradiated by the fluorescent detection pen, which is convenient for identification.
Example 20
This example 20 provides a method for preparing 24-core ribbon fiber comprising conventional 12-color ink and 12 colors of ink with fluorescent whitening agent added, which comprises the following steps:
35% of epoxy acrylate, 30% of urethane acrylate, 9% of 1, 6-hexanediol diacrylate, 12% of pentaerythritol tetraacrylate, 2% of TPO, 3% of 184, 2% of BP, 3% of an active amine co-initiator, 2% of a toner, 0.5% of polydimethylsiloxane, 0.5% of an acrylate leveling agent and 0.5% of a BYK-163 dispersing agent are mixed in percentage by mass to obtain each bottle of the 12-color ink for preparing the ink layer. Respectively taking out 12 color inks in half bottles, adding a fluorescent brightener into the 12 color inks in the half bottles, uniformly stirring to obtain mixed ink, carrying out coloring and curing on the surface of the optical fiber A by using a UV lamp tube with the power of 7500W through an optical fiber coloring machine at the diameter of 0.260mm and the speed of 1200m/min, carrying out coloring and curing on the surface of the optical fiber B by using a UV lamp tube with the power of 7500W through an optical fiber coloring machine at the diameter of 0.260mm and the speed of 1200m/min, and then carrying out 24-core optical fiber preparation through an optical fiber ribbon combining machine on 12 types of optical fibers A and 12 types of optical fibers B which are prepared. Wherein, the mass percentage of the fluorescent whitening agent added to each optical fiber ink layer is 0.5%. The 24-core ribbon fiber prepared in this example 20 was irradiated using a fluorescence detection pen with a wavelength of 330-410 nm. The detection results are as follows: in the 24-core ribbon optical fiber, the 12-color A colored optical fiber added with the fluorescent whitening agent shows blue fluorescence under a fluorescence detection pen, and the 12-color B colored optical fiber not added with the fluorescent whitening agent has no obvious change under the fluorescence detection pen. It can be seen that the colored optical fiber provided by the embodiment of the present invention can easily distinguish the 24-core ribbon optical fiber.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A fluorescently distinguishable colored optical fiber, said colored optical fiber comprising: the optical fiber comprises a fiber core, a cladding coated on the outer surface of the fiber core and a coating coated on the outer surface of the cladding;
the coating comprises an inner layer, an outer layer and an ink layer, and the inner layer, the outer layer and the ink layer are sequentially coated on the outer surface of the cladding;
the ink layer comprises the following components in percentage by mass: 0.001-2.5% of fluorescent whitening agent, 10-80% of acrylate oligomer, 5-50% of acrylic monomer, 0.1-15% of photoinitiator, 0.01-10% of active amine co-initiator, 0.01-10% of toner, 0.01-10% of flatting agent, 0.01-10% of defoaming agent and 0.01-10% of dispersing agent.
2. The colored optical fiber according to claim 1, wherein the fluorescent whitening agent comprises at least one of a stilbene fluorescent whitening agent, a coumarin fluorescent whitening agent, an azole fluorescent whitening agent, and a dicarboximide fluorescent whitening agent.
3. The colored optical fiber according to claim 2, wherein the stilbene fluorescent whitening agent comprises at least one of triazine type stilbene, bisamide type stilbene and triazole type stilbene;
the coumarin fluorescent whitening agent comprises at least one of 3-carboxycoumarin, 4-methyl-7-aminocoumarin, 3-phenyl-7-aminocoumarin and heterocyclic coumarin;
the azole fluorescent whitening agent comprises at least one of benzoxazole, benzimidazole and pyrazoline heterocyclic azole fluorescent whitening agent;
the fluorescent brightener of the dicarboximide comprises phthalimide or naphthalimide.
4. The colored optical fiber of claim 1, wherein the acrylate oligomer comprises at least one of an epoxy acrylate, a urethane acrylate, a polyester acrylate, and a polyether acrylate.
5. The colored optical fiber of claim 1, wherein the acrylic monomer comprises at least one of 1, 6-hexanediol diacrylate, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, and 2-phenoxyethyl acrylate.
6. The colored optical fiber of claim 1, wherein the photoinitiator comprises at least one of a free radical initiator, a cationic initiator, and an anionic initiator.
7. The colored optical fiber of claim 6, wherein the free radical initiator comprises at least one of 2,4, 6-trimethylbenzoyldiphenylphosphine oxide, 2-isopropylthioxanthone, phenylbis (2,4, 6-trimethylbenzoyl) phosphine oxide, 2, 4-diethylthiazolone, 2-methyl-1- [4- (methylthio) phenyl ] -2- (4-morpholinyl) -1-propanone, 1-hydroxycyclohexylphenylketone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, and benzophenone.
8. The colored optical fiber of claim 1, wherein the toner comprises titanium dioxide, carbon black, phthalocyanine blue, phthalocyanine green, benzidine yellow, rubine 4B, permanent violet, or permanent red.
9. The colored optical fiber according to claim 1, wherein the leveling agent is an organic silicon-based leveling agent or an acrylic leveling agent, and the defoaming agent is a polyether-modified organic silicon-based defoaming agent or a non-silicon-based polymer defoaming agent.
10. A method of making a fluorescent-distinguishable colored optical fiber, for use in making the colored optical fiber of any one of claims 1-9, comprising the steps of:
mixing acrylate oligomer, acrylic monomer, photoinitiator, active amine co-initiator, toner, flatting agent, defoaming agent and dispersant according to the mass percentage of each component to obtain ink;
adding a fluorescent whitening agent into the ink, and uniformly mixing to obtain mixed ink;
and coating the mixed ink on the surface of the optical fiber, and curing to obtain the colored optical fiber.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI838041B (en) | 2021-12-30 | 2024-04-01 | 大陸商上海飛凱材料科技股份有限公司 | Light-shielding composition and preparation method thereof, display device |
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| CN107474608A (en) * | 2017-08-23 | 2017-12-15 | 江苏富春江光电有限公司 | A kind of visible at night optical fiber |
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| JPH01138520A (en) * | 1987-11-26 | 1989-05-31 | Sumitomo Electric Ind Ltd | Optical fiber |
| CN106010144A (en) * | 2016-06-20 | 2016-10-12 | 上海飞凯光电材料股份有限公司 | UV-LED-curing optical fiber coating resin and preparing method and application thereof |
| US20170371122A1 (en) * | 2016-06-28 | 2017-12-28 | Corning Incorporated | Fiber marking with optical brighteners |
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