CN101955326B - Color fiber manufacturing method and color fiber manufactured thereby - Google Patents
Color fiber manufacturing method and color fiber manufactured thereby Download PDFInfo
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- CN101955326B CN101955326B CN2010102459184A CN201010245918A CN101955326B CN 101955326 B CN101955326 B CN 101955326B CN 2010102459184 A CN2010102459184 A CN 2010102459184A CN 201010245918 A CN201010245918 A CN 201010245918A CN 101955326 B CN101955326 B CN 101955326B
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Abstract
The invention relates to a color fiber manufacturing method and a color fiber manufactured thereby. The method comprises the following steps of: drawing the fiber by using a prefabricated bar, coating the fiber by using a coating cup and performing light curing to form a first coating; putting natural color painting and color painting into a second coating device, coating the fiber coated with the first coating by using a compound coating cup for the second time to form a compound coating with the natural color painting on the inner side and the color painting on the outer side; and performing the light curing for the second time to form a second coating so as to obtain the color fiber. A fiber cladding layer, the first coating and second coating all consist of the natural color painting and the color painting. In the invention, requirements on corresponding equipment and process are low, conditioning is easy, risks of the production are small, and thus manufacturing cost is low and production efficiency is high. The color fiber produced has the combined advantages of an anti-fading fiber and a coloring fiber, the color coating part is greatly thinner than the second coating of the anti-fading fiber, light transmission is high, color and luster are bright, and the second coating of the fiber is more long-lasting in color, small in outer diameter change and uniform.
Description
Technical field
The present invention relates to optical cable manufacturing technology field, relate in particular to a kind of method of manufacture of colored optical fiber.
Background technology
Optical cable is the main delivery means of the various Information Networks of current information society, and wherein optical fiber is the core component of optical cable.Be the optical fiber in identification optical cable or the fibre ribbon, so as in the installation of optical cable, continue, can correctly find required optical fiber rapidly when safeguarding, at present in the industry institute generally the method for employing be to label with color, distinguish different fibers with distinct colors.Make the method for different colours on the fibre ribbon mainly contain painted and two kinds of lock looks at present, it is fine with lock coloured light that the optical fiber of being produced is called colored optical fiber respectively.
Usually the coat of optical fiber has two-layer; Adopt two kinds of different coating respectively: the first layer is a kind of soft buffer coating; Modulus is in 10Mpa, and its function is protection optical fiber and the isolated external stress that can cause little loss on transmission consumption, improve optical fiber tensile strength, make the minimizing microbending loss; The second layer is a kind of tough and tensile coating, and modulus is at hundreds of Mpa, and its function is to improve optical fiber anti-pressure ability and wear-resistant ability, makes it have certain mechanical strength for the enough protections of optical fiber.
Chemical ingredients in the true qualities optical fiber painting of coating is mainly vinyl resin chain prepolymer and Acrylic Acid Monomer and auxiliary agent and light trigger.Wherein vinyl resin prepolymer and monomer are the backbone structure of prescription in the composition, and they have determined the basic physical property of coating, and physical and mechanical propertiess such as the hardness of coating, snappiness are had tangible influence.Light trigger can produce radical under UV light, and the two keys in these radical bump coating make vinyl resin prepolymer and monomer polymerization reaction take place, forms the solid polymer of intersection chain structure then, and this is the process of paint solidification just.The crosslinking degree that final fiber strength depends primarily on the intersection chain is a degree of cure.
Painted is the method that makes color on the fibre ribbon that present most of optical fiber cable manufacturer uses; Its optical fiber structure such as Fig. 4; A covering is contained at its center, and the covering outer circumferential side is provided with the first true qualities coating and the second true qualities coating, is provided with the colored ink layer at the outer circumferential side of the second true qualities coating.Painted normally at the true qualities optical fiber surface of the completion of wire drawing after the overtension screening; Be coated with once more and be covered with the coloured coloring printing ink of very thin one deck; After UV curing, the optical fiber all surface is just covered by thin and firm polymer layer, and pigmented layer thickness is generally about 5 μ m.Because of pigmented layer is thinner, be easy to solidify, so the pigment ratio is relatively large in the coloring printing ink, colored optical fiber is bright-colored.Because of painted be with received on the dish optical fiber once more unwrapping wire, apply coloring printing ink, UV is received on the wire spool after solidifying again; The diameter of true qualities fibre is wayward; Cause the optical fiber external diameter wider distribution after painted; In addition, whether the clean-up performance of painted mould, the center of flowline the working order of the cleaning of the control of gas, coloring printing ink and degree of uniformity, UV lamp in centering, the control of retractable cable tensile, the color solidification, even the clean situation of true qualities optical fiber to be colored and surrounding working environment; All be to produce dysgenic hidden danger to the optical fiber quality in the coloring process; In case any one details goes wrong, can cause all that optical fiber occurs that bubble is arranged in surface decolouring, the colored optical fiber coating, the pigmented layer concentricity is bad, serious meeting causes optical fiber attenuation to increase or the PMD deterioration.After the colored optical fiber that is up to the standards dispatches from the factory, also often have to overlap to mould and find in the production that pigmented layer fades, even the fine accident that comes off at optical cable construction field optical fibers pigmented layer, breaks also happens occasionally.In sum, although the colored optical fiber color and luster is lucid and lively, paintedly itself also bring " potential threat " for optical fiber.
It is the lock look that another kind makes on the fibre ribbon method of color, 12 kinds of color paints promptly formulating according to international standard, and the second time that color directly is added to optical fiber is in the coat; Its optical fiber structure such as Fig. 5; A covering is contained at its center, and the covering outer circumferential side is provided with the first true qualities coating, is provided with second coloured coating at the outer circumferential side of the first true qualities coating; From wire-drawer-tower, directly pull out coloured optical fiber, do not need again the painted cover that can directly be used for to mould production afterwards.Produce the product that directly obtains because of lock coloured light is fine for wire drawing, so compare with colored optical fiber, outside diameter control is better, and incomparable homogeneity of colored optical fiber and homogeneity are arranged, and also can avoid the improper detrimentally affect that optical fiber is caused of coloring process in addition.Because of the thickness of second coloured coating is about 25 μ m, thick more a lot of than the pigmented layer (5 μ m) of colored optical fiber, so can avoid the phenomenon of decolouring, fade, fading fully.
The fine used coating of lock coloured light, the first layer is similar with the true qualities optical fiber coatings, and the second layer is a colo(u)r coating; Promptly in coating, add suitable pigment; The effect of pigment is to pigment dyeing, makes optical fiber after the second layer applies, just be with color, but simultaneously also can the shield portions UV-light; If select incorrectly, then can cause negative influence to the curing of coating.Because of the fine second layer coating thickness of lock coloured light almost at 25 μ m, how than the thickness of 5 μ m of colored optical fiber pigmented layer a lot, so; Granularity, dispersity and the transparence of the pigment in the colo(u)r coating of the fine usefulness of requirement lock coloured light should make to be coated with color on the strip, can not absorb and cover too much UV-light again; Cause locking the coloring printing ink of the relative colored optical fiber of colo(u)r coating of the fine usefulness of coloured light, wherein the pigment ratio is less, can't add the material of some Gao Liang because of the shading reason; Color is bright inadequately mostly; This can't but be kind of a shortcoming to optical cable construction, the especially piping installation of frequent need under the darker environment of light.In addition, the fine because reason that second layer color layer is thicker of lock coloured light to the second layer solidifying requirements of optical fiber than higher, to the requirement of production technique and equipment also than higher; Like the power of curing oven and UV lamp, the real-time monitoring or the like of intensity of illumination of oxygen concn control, UV lamp in the curing oven silica tube, in addition, the variation of drawing speed, one deck apply the fluctuation of external diameter even degree of stability of service voltage or the like; The capital has influence on the curing of the second color layer coating; In case two layers solidify not enough, two layers with the interface of one deck insecure phenomenon will appear combining, one, two bed interfaces take place then separate; Reduction is to the provide protection of optical fiber; Reduce mechanical fiber optic intensity, thereby and under the bigger situation of temperature variation, shrink asynchronous the unusual of decay index that cause, serious meeting causes disconnected fine.The harshness of this equipment and technology controlling and process requires to be mainly reflected in and to solidify related aspect, has also limited to the popularization of the fine technology of lock coloured light.
Summary of the invention
The object of the present invention is to provide a kind of loose and have lock look characteristics, a method of manufacture of the lucid and lively a kind of colored optical fiber that is easy to recognize of optical fiber color and luster simultaneously to two layers of condition of cure requirement.It is realized through following technical proposals:
Said method is; The prefabricated rods drawing optic fibre is coated with through one deck and forms first coating through photocuring again after inflammatory blepharoedema applies, and when carrying out second layer coating, true qualities coating and colo(u)r coating place second coating unit; The above-mentioned optical fiber that is coated with first coating carries out applying the second time through the compound inflammatory blepharoedema that is coated with; Forming the inboard is that the true qualities coating outside is the compound coating of colo(u)r coating, solidify to form second coating through secondary light again, obtains said colored optical fiber.
The further design of said method is; Optical fiber external diameter through solidifying to form first coating is preferably: 195 ± 3 μ m; Then the inboard true qualities paint thickness of second coating is preferably 17～19 μ m; The chrominance section thickness in the outside is preferably 6～8 μ m, and the coating pressure of pairing true qualities coating is preferably 2.8～4.4kg/cm
3, the coating pressure of colo(u)r coating is preferably 2.0～3.5kg.
The further design of said method is that said secondary light solidified UV light is 140～180mW/cm according to intensity
2
The further design of said method is; The said compound inflammatory blepharoedema that is coated with is formed by true qualities coating mould and colo(u)r coating die assembly; Be close to the front end of true qualities coating mould by said optical fiber heading colo(u)r coating mould in the mill, the optic fibre hole coaxial line in the two said paint cups, said optical fiber travels forward along optic fibre hole; Coating in the true qualities paint cup applies earlier; Form this inboard in second coating chromatograph, the coating in the colo(u)r coating mould applies again, forms the color layer in the outside in second coating.
The colored optical fiber that aforesaid method makes; The covering that comprises the center of being arranged at be arranged on first coating of covering outer circumferential side and be arranged on second coating of the first coating outer circumferential side, it is characterized in that said second coating is made up of with the coloured coating of being close to this true qualities coating outer circumferential side the true qualities coating of all sides in being in.
Said colored optical fiber further designs, and said true qualities coat-thickness is 17～19 μ m, and coloured coating thickness is 6～8 μ m.
The present invention locks the second fine coating of coloured light relatively because of the chrominance section that contains pigment particles and approaches manyly; Be merely 1/4～1/3 thickness of whole second coatings; So it is fine good a lot of that the light transmission of second coating of this optical fiber will be locked coloured light, like this, even in equipment and processing requirement not so under the exacting terms; Second coating also can be solidified fully, realizes higher degree of cure.And just because of the thinner thickness of chrominance section, the pigment ratio can suitably be adjusted in the colo(u)r coating, also can suitably add the material of some Gao Liang, realizes the bright of optical fiber integrally color and luster.
Because second coating adopts two look cladding processes, two are coated with the web mould is assemblied in same being coated with in the inflammatory blepharoedema, so the concentricity of the color layer in second coating and this chromatograph is apparently higher than the painted again situation of true qualities optical fiber.Diameter control is identical with the true qualities fibre, and is so the external diameter index of colored optical fiber also will be superior to colored optical fiber, close with common true qualities optical fiber.
The present invention will carry out to second coating layer portion that color part on the optical fiber advances to optical fiber; Not only obtain having concurrently the advantage of lock coloured light fibre and colored optical fiber; Avoid its weak point, and improved production efficiency, reduced the risk in producing; Reduce production costs, make that the gained colored optical fiber becomes that color is more lasting, color and luster more light, external diameter changes littler product more uniformly.
Description of drawings
Fig. 1 is the schematic block diagram of the inventive method.
Fig. 2 is the structural representation of compound cup.
Fig. 3 is an optical fiber structure synoptic diagram of the present invention.
Fig. 4 is the colored optical fiber structural representation.
Fig. 5 is the fine structural representation of lock coloured light.
Among the figure, prefabricated rods in 1 process furnace, 2 cooling cylinders, 3 bare fibre measuring apparatus of diameter, 4 one deck coating units; 5 one coating feeder systems, 6 one deck UV lamp boxes, 7 one deck measuring apparatus of diameter, 8 two layers of coating unit, 9 two layers of true qualities coating feeder system; 10 2 layers of colo(u)r coating feeder system, 11 2 layers of UV lamp box, 12 2 layers of measuring apparatus of diameter, 13 optical fiber take-up reels, 14 prefabricated rods heater control system; 15 1 coating temperature and pressure system, 16 one decks apply diameter control system, 17 2 layers of true qualities coating temperature and pressure system, 18 2 layers of colo(u)r coating temperature and pressure system, 19 2 layers apply diameter control system; 20 computingmachine master control systems, 31 coverings, 32 first coatings, 33a true qualities coating, 33b coloured coating; 41 coverings, 42 first true qualities coatings, 43 second true qualities coatings, 44 pigmented layers, 51 coverings; 52 first true qualities coatings, 53 second coloured coatings, 810 true qualities coating moulds, 811 optic fibre holes; 813 true qualities coating apply the storehouse, 820 colo(u)r coating moulds, and 821 optic fibre holes, 823 colo(u)r coatinges apply the storehouse.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Map 1; Prefabricated rods 1 is drawn into optical fiber through 2000 ℃ heat in the process furnace; After cooling cylinder 2 coolings, measure the bare fibre diameter at bare fibre measuring apparatus of diameter 3, be coated with inflammatory blepharoedema 4 by one deck afterwards and carry out applying the first time; Being coated with inflammatory blepharoedema 4 provides the coating of certain temperature and pressure, this system 5 to receive 20 controls of computingmachine master control system by a coating feeder system 5.One deck applies the back and solidifies through one deck UV lamp box 6, forms the first true qualities coating.Optical fiber after solidifying carries out the measurement that one deck applies diameter at one deck measuring apparatus of diameter 7, requires diameter at 195 ± 3 μ m.Carry out the coating of the second layer again; The second layer applies that used compound to be coated with inflammatory blepharoedema 8 as shown in Figure 2; It is combined by true qualities coating mould 810 and colo(u)r coating mould 820; Be close to the front end of true qualities coating mould 810, optic fibre hole 811,821 coaxial lines in two paint cups by optical fiber heading colo(u)r coating mould 820 in the mill.True qualities coating and colo(u)r coating get into corresponding true qualities coating coating storehouse 813 through true qualities coating pipeline 812 and colo(u)r coating pipeline 822 and apply storehouse 823 with colo(u)r coating; Optical fiber travels forward along optic fibre hole 811,821; In the true qualities paint cup, apply the coating in storehouse 813 earlier; Form this inboard in second coating chromatograph, in the colo(u)r coating cup, apply the coating in storehouse 823 again, form the color layer in the outside in second coating.The coating of true qualities and colo(u)r coating provides coating respectively by two layers of true qualities coating feeder system 9 and two layers of colo(u)r coating feeder system 10 respectively during coating.After two layers of coating were accomplished, optical fiber got into two layers of UV lamp box 11 and is cured, and it is 140～180mW/cm according to intensity that ultra-violet curing uses UV light
2Carry out the measurement of optical fiber external diameter by two layers of measuring apparatus of diameter 12 more afterwards; The thickness of second layer coating is 25 μ m, is the composite bed that contains true qualities and color layer, wherein inboard about 17～19 μ m of true qualities segment thickness; About 6～8 μ m of chrominance section thickness in the outside, contained chromatic part only accounts for the sub-fraction of second coating.The coating pressure of corresponding true qualities coating is at 2.8～4.4kg/cm
3, preferred 3.5kg/cm
3The coating pressure of colo(u)r coating is at 2.0～3.5kg, preferred 2.9kg/cm
3Form optical fiber as shown in Figure 3 at last; The covering 31 that this optical fiber comprises the center of being arranged at be arranged on first coating 32 of covering outer circumferential side and be arranged on second coating of the first coating outer circumferential side, second coating 3 is made up of with the coloured coating 33b that is close to this true qualities coating outer circumferential side the true qualities coating 33a of all sides in being in.The optical fiber of processing is wound on the take-up reel 13 at last.
The thickness of this color part and chrominance section is mainly by die size decision in above-mentioned second coating, but during under special circumstances like velocity variations, the optical fiber external diameter might change thereupon, but can make the optical fiber external diameter reach specialized range through system's adjusting.Acceptability limit 245 ± 5 μ m like the optical fiber external diameter; And the scope of the goal-setting value of optical fiber external diameter (245 ± 3 μ m) is narrow than acceptability limit; Like this; Apply diameter control system 19 when measuring apparatus of diameter 12 detects the optical fiber external diameter that exceeds target value and detected value is reached two layers, apply diameter control system 19 by two layers and carry out the relatively judgement of detected value and target value (245 ± 3 μ m), judged result is transferred to computingmachine master control system 20; Then computingmachine master control system 20 sends instruction, again by two layers of true qualities coating temperature and pressure system 17,18 regulate two layers of true qualities coating feeder system 9 coating pressure so that two layers of diameter be returned in the target range.
Claims (5)
1. the method for manufacture of a colored optical fiber, prefabricated rods drawing optic fibre are coated with through one deck and form first coating through photocuring again after inflammatory blepharoedema applies, and it is characterized in that carrying out the second layer when applying; True qualities coating and colo(u)r coating place second to be coated with inflammatory blepharoedema, and the above-mentioned optical fiber that is coated with first coating carries out applying the second time through the compound inflammatory blepharoedema that is coated with, and forming the inboard is that the true qualities coating outside is the compound coating of colo(u)r coating; Solidify to form second coating through secondary light again; Obtain said colored optical fiber, the said compound inflammatory blepharoedema that is coated with is formed by true qualities coating mould and colo(u)r coating die assembly, is close to the front end of true qualities coating mould by said optical fiber heading colo(u)r coating mould in the mill; Optic fibre hole coaxial line in the two said coating moulds; Said optical fiber travels forward along optic fibre hole, and the coating in true qualities coating mould applies earlier, forms this inboard in second coating chromatograph; Coating in the colo(u)r coating mould applies again, forms the color layer in the outside in second coating.
2. the method for manufacture of a kind of colored optical fiber according to claim 1 is characterized in that the optical fiber outside diameter control is at 195 ± 3 μ m when photocuring forms first coating, and when carrying out second layer coating, the coating pressure of true qualities coating remains at 2.8～4.4kg/cm
3, the coating pressure of colo(u)r coating is at 2.0～3.5kg/cm
3
3. according to the method for manufacture of the said a kind of colored optical fiber of claim 1, it is characterized in that said secondary light solidified UV light is 140～180mW/cm according to intensity
2
4. the colored optical fiber that makes of method of manufacture according to claim 1; The covering that comprises the center of being arranged at be arranged on first coating of covering outer circumferential side and be arranged on second coating of the first coating outer circumferential side, it is characterized in that said second coating is made up of with the coloured coating of being close to this true qualities coating outer circumferential side the true qualities coating of all sides in being in.
5. colored optical fiber according to claim 4 is characterized in that said true qualities coat-thickness is 17～19 μ m, and coloured coating thickness is 6～8 μ m.
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| CN2010102459184A CN101955326B (en) | 2010-08-05 | 2010-08-05 | Color fiber manufacturing method and color fiber manufactured thereby |
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| CN2010102459184A CN101955326B (en) | 2010-08-05 | 2010-08-05 | Color fiber manufacturing method and color fiber manufactured thereby |
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| CN101955326A CN101955326A (en) | 2011-01-26 |
| CN101955326B true CN101955326B (en) | 2012-10-31 |
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| CN103707524B (en) * | 2013-12-20 | 2016-02-03 | 上海晓宝增强塑料有限公司 | A kind of optical cable reinforcement and process units thereof and method |
| CN103641335B (en) * | 2013-12-24 | 2016-05-25 | 南京华信藤仓光通信有限公司 | The method of fibre diameter after twice coating of a kind of control |
| CN104385552B (en) * | 2014-09-25 | 2016-08-17 | 烽火通信科技股份有限公司 | A kind of double-colored optical fiber coloring mould |
| CN110845155B (en) * | 2019-11-21 | 2023-10-20 | 江苏永鼎股份有限公司 | Optical fiber bundle coating die, optical fiber bundle coating curing process and equipment |
| CN111825328A (en) * | 2020-07-28 | 2020-10-27 | 江苏华脉光电科技有限公司 | Device for producing color optical fiber by centralized feeding |
| CN113292257A (en) * | 2021-05-08 | 2021-08-24 | 通鼎互联信息股份有限公司 | Device and method for eliminating optical fiber coating bubbles on line |
| CN113698111A (en) * | 2021-10-19 | 2021-11-26 | 江东科技有限公司 | Optical fiber drawing coating device and coating method |
| CN114276026B (en) * | 2021-11-25 | 2024-03-22 | 中天科技光纤有限公司 | Optical fiber preparation method and equipment |
| CN116514413B (en) * | 2023-05-22 | 2023-12-05 | 上海昱品通信科技股份有限公司 | Open type wet-to-wet coating device for optical fiber drawing |
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| CN1444062A (en) * | 2001-11-06 | 2003-09-24 | 株式会社藤仓 | Coated optical fibre and mfg. method and device |
| CN1513010A (en) * | 2001-06-01 | 2004-07-14 | ���Ͽع�����˾ | Colored radiation-curable compositions |
| CN1519598A (en) * | 2003-01-24 | 2004-08-11 | 深圳市海川实业股份有限公司 | Optical fiber covered by colour coating |
| CN101238399A (en) * | 2005-08-04 | 2008-08-06 | 康宁光缆系统有限公司 | Mechanically strippable upcoated optical fiber |
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|---|---|---|---|---|
| CN1513010A (en) * | 2001-06-01 | 2004-07-14 | ���Ͽع�����˾ | Colored radiation-curable compositions |
| CN1962709A (en) * | 2001-06-01 | 2007-05-16 | 阿尔卡特公司 | Radiation-curable composition with simultaneous color formation during cure |
| CN1444062A (en) * | 2001-11-06 | 2003-09-24 | 株式会社藤仓 | Coated optical fibre and mfg. method and device |
| CN1519598A (en) * | 2003-01-24 | 2004-08-11 | 深圳市海川实业股份有限公司 | Optical fiber covered by colour coating |
| CN101238399A (en) * | 2005-08-04 | 2008-08-06 | 康宁光缆系统有限公司 | Mechanically strippable upcoated optical fiber |
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Address after: 210038 No. 76, Xingang Avenue, Nanjing economic and Technological Development Zone, Nanjing, Jiangsu Patentee after: NANJING WASIN FUJIKURA OPTICAL COMMUNICATION LTD. Address before: 210038 No. 76, Xingang Avenue, Nanjing economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: Nanjing Fiberhome Fujikura Optical Communication Ltd. |
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Effective date of registration: 20201023 Address after: 311300 Qing Ke village, Jincheng Street, Ling'an District, Hangzhou, Zhejiang Patentee after: HANGZHOU JINLONG OPTICAL CABLE Co.,Ltd. Address before: 210038 No. 76, Xingang Avenue, Nanjing economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING WASIN FUJIKURA OPTICAL COMMUNICATION Ltd. |
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Effective date of registration: 20210129 Address after: 210038 No. 76 Xingang Avenue, Nanjing economic and Technological Development Zone, Jiangsu Patentee after: NANJING WASIN FUJIKURA OPTICAL COMMUNICATION Ltd. Address before: 311300 Qing Ke village, Jincheng Street, Ling'an District, Hangzhou, Zhejiang Patentee before: HANGZHOU JINLONG OPTICAL CABLE Co.,Ltd. |