CN103472526A - Colored optical fiber and manufacturing method thereof - Google Patents
Colored optical fiber and manufacturing method thereof Download PDFInfo
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- CN103472526A CN103472526A CN2013104579184A CN201310457918A CN103472526A CN 103472526 A CN103472526 A CN 103472526A CN 2013104579184 A CN2013104579184 A CN 2013104579184A CN 201310457918 A CN201310457918 A CN 201310457918A CN 103472526 A CN103472526 A CN 103472526A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims description 38
- 238000000576 coating method Methods 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000005286 illumination Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 abstract description 12
- 238000004040 coloring Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 3
- 239000011247 coating layer Substances 0.000 abstract 7
- 239000010410 layer Substances 0.000 abstract 3
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 206010009866 Cold sweat Diseases 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000253 optical time-domain reflectometry Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
The invention provides a colored optical fiber and a manufacturing method of the colored optical fiber and relates to the field of optical communication. The colored optical fiber is composed of a bare optical fiber, a first coating layer, a second coating layer and a coloring layer from the inner side to the outer side in sequence. The release force of each coating layer of the colored optical fiber is 1.5N-1.8N. The manufacturing method of the colored optical fiber comprises the steps that the bare optical fiber is coated with the first coating layer and the second coating layer in sequence in the same eye model and solidifying disposing and coloring disposing are conducted in sequence. After optical fibers are combined and an optical fiber belt is obtained, the first coating layer, the second coating layer, the coloring layer and a belt combining layer are easy to strip in an integrated mode, and therefore following belt combination and optical cable production are facilitated. Meanwhile, in the process of production of the optical fiber, the optical fiber is not sticky and can not block the eye model. The manufacturing method of the colored optical fiber is simple and easy to control.
Description
Technical field
Patent of the present invention relates to optical communication field, is specifically related to a kind of colored optical fiber and preparation method thereof.
Background technology
Colored optical fiber is followed successively by bare fibre, coat (the first coat, the second coat) and dyed layer from inside to outside.The first coat and the second coat are generally photoactive coating (UV coating).The coat peeling force refers to the power that the first coat of unit length (50mm) and covering are peeled off, and is used for weighing the stickability between optical fiber the first coat and covering.Fibre ribbon is that multifiber is sticked together with resin glue.The coat peeling force of optical fiber is very large for the hot soarfing performance impact of fibre ribbon.
Along with the development of optical communication industry, the hot soarfing performance of fibre ribbon has been proposed to higher requirement.For example, while being applied to the terminal optical assembly, need to by the coat of fibre ribbon one end (the first coat, the second coat), dyed layer and and belt divest together, covering is made to Fiber Array(FA, fiber array).Optical device producer all can be used the hot soarfing device when producing FA.In order to enhance productivity, optical device producer require coat, dyed layer and and belt can be whole hot soarfing from fibre ribbon from totally.Except optical device, in the detection of optical fiber and in the fusion process after making optical cable, all need the coat of optical fiber is divested, connect the OTDR(checkout equipment with the covering of optical fiber) or welding.
The coat peeling force of optical fiber and the painting method in drawing optical fibers technique have very large relation.Painting method has " dry humidification " and " wet humidification ".Wherein the coating method speed of production of " wet humidification " is fast.The characteristics of " wet humidification " coating method: carry out successively one deck coating, two layers of coating in a glance mould, then solidify simultaneously.Because one deck coating without overcuring, is still " wetting ", therefore named wet humidification.But, current " wet humidification " optical fiber that coating method obtains, its coat peeling force is 2.2N～3N, because the coat peeling force is bigger than normal, the fibre ribbon therefore obtained after such optical fiber ribbon, in the hot soarfing process, coat, dyed layer and and belt can not integral body divest, divest efficiency low.The coat peeling force, lower than the optical fiber of 1N, easily is clamminess in production run, easily stops up the eye mould when painted.
Summary of the invention
The purpose of this invention is to provide a kind of colored optical fiber, its coat peeling force is 1.5～1.8 N, adopt the fibre ribbon obtained after this optical fiber ribbon, its first coat, the second coat, dyed layer and and belt be easy to integral body and divest, be beneficial to follow-up and band and optical cable production; Simultaneously, above-mentioned optical fiber in process of production, is not easy to be clamminess, and can not stop up a mould.
Another object of the present invention is to provide the preparation method of above-mentioned colored optical fiber, and the method is simple, is easy to control.
Purpose of the present invention adopts following method to realize.
A kind of colored optical fiber, be followed successively by bare fibre, the first coat, the second coat, dyed layer from inside to outside, and the coat peeling force of described colored optical fiber is 1.5～1.8 N.
The thickness of the first coat is 63 μ m～65 μ m, and the thickness of the second coat is 50 μ m～55 μ m.
A kind of method for preparing described colored optical fiber applies successively the first coat, the second coat by bare fibre in a glance mould, then carries out successively coat and solidifies processing and painted processing, obtains described colored optical fiber.
Described coat solidifies in processing procedure, and the illumination of UV lamp is 11 mw/cm
2～12.5 mw/cm
2, be 0.16s～0.17s set time.
The process of described painted processing is: coat is solidified to the optical fiber coating dyed layer after processing, adopt H type UV lamp to solidify described dyed layer, the illumination of described H type UV lamp is 13 mw/cm
2～15 mw/cm
2, be 0.09s～0.11s the set time of dyed layer.Coat solidifies the optical fiber obtained after processing, and the first coat degree of cure has been controlled at 75%～83%, and the optical fiber coating peeling force is 1.5 N～1.7N.If select D type UV fluorescent tube in coloring process, the degree of cure of painted rear the first coat has reached between 90%～95%, and the optical fiber coating peeling force soars between 2N～3N.The output spectrum of D type UV fluorescent tube mainly concentrates near 385nm, and the radiation intensity when light trigger in pigmented finiss coordinates is about 275W/10nm herein; Because the curing ultimate principle of UV is that ultraviolet ray and light trigger in pigmented finiss coordinate and make in pigmented finiss the result that chemical bond reconfigures, light intensity is stronger comparatively speaking, wavelength is longer, and curing depth is darker.This be also why painted after the degree of cure of the first coat reason that can improve a lot, and if reduce D type UV fluorescent tube intensity, can cause optical fiber coloring layer degree of cure low, dyed layer easily comes off.Therefore, in order to control the optical fiber coating peeling force, the present invention uses H type UV fluorescent tube, its output spectrum mainly concentrates near 260nm, radiation intensity is about 150 W/10nm, can larger impact not arranged to optical fiber the first coat, and the coat peeling force of the colored optical fiber obtained is 1.5N～1.8N.
Beneficial effect:
Colored optical fiber of the present invention, its coat peeling force is 1.5～1.8 N, adopts the fibre ribbon obtained after this optical fiber ribbon, its first coat, the second coat, dyed layer and and belt be easy to integral body and divest, be beneficial to follow-up and band and optical cable production; Simultaneously, above-mentioned optical fiber in process of production, is not easy to be clamminess, and can not stop up a mould.
The preparation method of colored optical fiber of the present invention, simple, be easy to control.
The accompanying drawing explanation
The manufacture process of Fig. 1 true qualities optical fiber, 1-heating furnace wherein, 2-prefabricated rods, 3-cooling cylinder, 4-eye mould, 5-ground floor coat coating, 6-the second coat coating, 7-UV lamp, 8-take-up reel.
Fig. 2 has shown that the production of optical fiber coloring shows process, 9-true qualities optical fiber wherein, the painted eye of 10-mould, 11-take-up end, 12-UV lamp.
Embodiment
The coating of the first coat, its Young modulus is 0.95～1.1 MPa, length growth rate 74～120%, 2.5% strain, viscosity 4700～4900mPas(25 ℃).The coating of the second coat, its Young modulus is 950～1400MPa, length growth rate 15～20%, 2.5% strain, viscosity 5300～5900 mPas(25 ℃ in the time of 25 ℃).
in conjunction with Fig. 1 and 2, present invention is described.
Prefabricated rods 2 is heated in heating furnace 1, then, by cooling barrel 3, obtained bare fibre.The structure of bare fibre is fibre core, covering from the inside to the outside.Bare fibre is passed through to an eye mould 4 with the speed of 1500m/min～1800m/min, successively apply the first coat and the second coat in this mould.After bare fibre has applied the first coat and the second coat, adopt UV lamp 7 to carry out coat and solidify processing, obtain true qualities optical fiber.Coat solidifies while processing, and optical fiber is 11 mw/cm by four illumination successively
2uV lamp (D type), set time 0.17s, optical fiber is taken turns around to fiber reel by straining pulley, dancer afterwards.
Painted processing: true qualities optical fiber 9 passes through painted eye mould 10 with the speed of 1500m/min～1800m/min, applies dyed layer, by three illumination, is then 15 mw/cm successively
2h type UV lamp 12 solidify dyed layer, be 0.09s the set time of dyed layer.Take turns around to fiber reel by dancer afterwards, obtain colored optical fiber of the present invention.The coat peeling force of this colored optical fiber is 1.5N, and the thickness of the first coat is at 63 μ m, and the thickness of the second coat is at 50 μ m.
Prefabricated rods is heated in heating furnace, then, by cooling barrel, obtained bare fibre.The structure of bare fibre is fibre core, covering from the inside to the outside.Bare fibre is passed through to an eye mould with the speed of 1500m/min～1800m/min, successively apply the first coat and the second coat in this mould.After bare fibre has applied the first coat and the second coat, adopt the UV lamp to carry out coat and solidify processing, obtain true qualities optical fiber.Coat solidifies while processing, and optical fiber is 12.5 mw/cm by four illumination successively
2uV lamp (D type), set time 0.16s, optical fiber is taken turns around to fiber reel by straining pulley, dancer afterwards.
Painted processing: true qualities optical fiber passes through painted mould with the speed of 1500m/min～1800m/min, applies dyed layer, by three illumination, is then 13 mw/cm successively
2h type UV lamp solidify dyed layer, dyed layer set time is 0.11s.Take turns on the fiber reel that detours by dancer afterwards, obtain colored optical fiber of the present invention.The coat peeling force of this colored optical fiber is 1.6 N, and the thickness of the first coat is 64 μ m, and the thickness of the second coat is 52 μ m.
Prefabricated rods is heated in heating furnace, then, by cooling barrel, obtained bare fibre.The structure of bare fibre is fibre core, covering from the inside to the outside.Bare fibre is passed through to an eye mould with the speed of 1500m/min～1800m/min, successively apply the first coat and the second coat in this mould.After bare fibre has applied the first coat and the second coat, adopt the UV lamp to carry out coat and solidify processing, obtain true qualities optical fiber.Coat solidifies while processing, and optical fiber is 11.5 mw/cm by four illumination successively
2uV lamp (D type), set time 0.165s, optical fiber is taken turns around to fiber reel by straining pulley, dancer afterwards.
Painted processing: true qualities optical fiber passes through painted mould with the speed of 1500m/min～1800m/min, applies dyed layer, by three illumination, is then 14 mw/cm successively
2h type UV lamp solidify dyed layer, dyed layer set time is 0.10s.Take turns on the fiber reel that detours by dancer afterwards, obtain colored optical fiber of the present invention.The coat peeling force of this colored optical fiber is 1.8 N, and the thickness of the first coat is 65 μ m, and the thickness of the second coat is 55 μ m.
The optical fiber that embodiment 1-3 is obtained adopts common process band: the grand and band machine of anti-generation, and the speed of each root optical fiber is 300m/min, and 2 600wUV lamps are cured, and the output power of each UV lamp is rated power 70%, and be 0.12S set time.And obtain fibre ribbon after band technique.During this fibre ribbon hot soarfing, the first coat, the second coat, dyed layer and and belt be easy to integral body and divest, be beneficial to follow-up and band and optical cable production.
Claims (5)
1. a colored optical fiber, be followed successively by bare fibre, the first coat, the second coat, dyed layer from inside to outside, and the coat peeling force that it is characterized in that described colored optical fiber is 1.5～1.8 N.
2. colored optical fiber according to claim 1, the thickness that it is characterized in that the first coat is 63 μ m～65 μ m, the thickness of the second coat is 50 μ m～55 μ m.
3. a method for preparing the described colored optical fiber of claim 1, is characterized in that: bare fibre is applied successively to the first coat, the second coat in a glance mould, then carry out successively coat and solidify processing and painted processing, obtain described colored optical fiber.
4. prepare according to claim 3 the method for colored optical fiber, it is characterized in that: described coat solidifies in processing procedure, and the illumination of UV lamp is 11 mw/cm
2～12.5 mw/cm
2, be 0.16s～0.17s set time.
5. prepare according to claim 4 the method for colored optical fiber, it is characterized in that: the process of described painted processing is: coat is solidified to the optical fiber coating dyed layer after processing, adopt H type UV lamp to solidify described dyed layer, the illumination of described H type UV lamp is 13 mw/cm
2～15 mw/cm
2, be 0.09s～0.11s the set time of dyed layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104579184A CN103472526A (en) | 2013-09-30 | 2013-09-30 | Colored optical fiber and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104579184A CN103472526A (en) | 2013-09-30 | 2013-09-30 | Colored optical fiber and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459911A (en) * | 2014-12-12 | 2015-03-25 | 中天日立光缆有限公司 | Large-capacity and small-diameter optical fiber OPGW and production method thereof |
| CN106091993A (en) * | 2016-06-29 | 2016-11-09 | 南京华信藤仓光通信有限公司 | Reduce the method and device that optical fiber coloring is uneven |
| CN106116183A (en) * | 2016-06-23 | 2016-11-16 | 南京华信藤仓光通信有限公司 | A kind of preparation method of hot soarfing optical fiber |
| CN106952688A (en) * | 2016-10-25 | 2017-07-14 | 常熟共益信息科技有限公司 | A kind of preparation method of spring sheathed structure optoelectrical cable |
| CN107741619A (en) * | 2017-11-30 | 2018-02-27 | 长飞光纤光缆股份有限公司 | A kind of optical cable colours two sets of integrated tinuous productions |
| CN110304822A (en) * | 2019-07-16 | 2019-10-08 | 成都中住光纤有限公司 | A kind of manufacturing method and its manufacturing equipment of easy-peel coated optical fiber |
| CN112551916A (en) * | 2020-10-12 | 2021-03-26 | 浙江联飞光纤光缆有限公司 | UV circulating curing device and process |
| CN114755763A (en) * | 2022-03-30 | 2022-07-15 | 长飞光纤光缆股份有限公司 | Online fiber fusion penetration method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295334A2 (en) * | 1987-06-16 | 1988-12-21 | kabelmetal electro GmbH | Method for the colour coding of an optical waveguide |
| US6208790B1 (en) * | 1999-01-28 | 2001-03-27 | The Stewart Group, Inc. | Ultra violet light curable polymer matrix for tight-buffering optical fibers |
| CN1457328A (en) * | 2001-02-20 | 2003-11-19 | 住友电气工业株式会社 | Coated optical fiber, optical fiber ribbon using the same, and optical fiber component |
| CN101238399A (en) * | 2005-08-04 | 2008-08-06 | 康宁光缆系统有限公司 | Mechanically strippable upcoated optical fiber |
| CN102033263A (en) * | 2010-12-22 | 2011-04-27 | 南京烽火藤仓光通信有限公司 | Miniature optical fiber |
| CN102147494A (en) * | 2010-02-04 | 2011-08-10 | Ofs飞泰尔有限责任公司 | Optical fiber coatings for reducing microbend losses |
| US20130011108A1 (en) * | 2011-07-06 | 2013-01-10 | Ofs Fitel, Llc | UV Curable Acrylate Buffer Coating for Optical Fiber |
-
2013
- 2013-09-30 CN CN2013104579184A patent/CN103472526A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295334A2 (en) * | 1987-06-16 | 1988-12-21 | kabelmetal electro GmbH | Method for the colour coding of an optical waveguide |
| US6208790B1 (en) * | 1999-01-28 | 2001-03-27 | The Stewart Group, Inc. | Ultra violet light curable polymer matrix for tight-buffering optical fibers |
| CN1457328A (en) * | 2001-02-20 | 2003-11-19 | 住友电气工业株式会社 | Coated optical fiber, optical fiber ribbon using the same, and optical fiber component |
| CN101238399A (en) * | 2005-08-04 | 2008-08-06 | 康宁光缆系统有限公司 | Mechanically strippable upcoated optical fiber |
| CN102147494A (en) * | 2010-02-04 | 2011-08-10 | Ofs飞泰尔有限责任公司 | Optical fiber coatings for reducing microbend losses |
| CN102033263A (en) * | 2010-12-22 | 2011-04-27 | 南京烽火藤仓光通信有限公司 | Miniature optical fiber |
| US20130011108A1 (en) * | 2011-07-06 | 2013-01-10 | Ofs Fitel, Llc | UV Curable Acrylate Buffer Coating for Optical Fiber |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459911A (en) * | 2014-12-12 | 2015-03-25 | 中天日立光缆有限公司 | Large-capacity and small-diameter optical fiber OPGW and production method thereof |
| CN104459911B (en) * | 2014-12-12 | 2019-05-07 | 中天电力光缆有限公司 | Large capacity small diameter fiber OPGW and its production method |
| CN106116183A (en) * | 2016-06-23 | 2016-11-16 | 南京华信藤仓光通信有限公司 | A kind of preparation method of hot soarfing optical fiber |
| CN106116183B (en) * | 2016-06-23 | 2018-07-03 | 南京华信藤仓光通信有限公司 | A kind of preparation method of hot soarfing optical fiber |
| CN106091993A (en) * | 2016-06-29 | 2016-11-09 | 南京华信藤仓光通信有限公司 | Reduce the method and device that optical fiber coloring is uneven |
| CN106952688A (en) * | 2016-10-25 | 2017-07-14 | 常熟共益信息科技有限公司 | A kind of preparation method of spring sheathed structure optoelectrical cable |
| CN106952688B (en) * | 2016-10-25 | 2018-11-16 | 江苏欣达通信科技股份有限公司 | A kind of production method of spring sheathed structure optoelectrical cable |
| CN107741619A (en) * | 2017-11-30 | 2018-02-27 | 长飞光纤光缆股份有限公司 | A kind of optical cable colours two sets of integrated tinuous productions |
| CN110304822A (en) * | 2019-07-16 | 2019-10-08 | 成都中住光纤有限公司 | A kind of manufacturing method and its manufacturing equipment of easy-peel coated optical fiber |
| CN112551916A (en) * | 2020-10-12 | 2021-03-26 | 浙江联飞光纤光缆有限公司 | UV circulating curing device and process |
| CN114755763A (en) * | 2022-03-30 | 2022-07-15 | 长飞光纤光缆股份有限公司 | Online fiber fusion penetration method |
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Address after: 210038 No. 76, Xingang Avenue, Nanjing economic and Technological Development Zone, Nanjing, Jiangsu Applicant after: NANJING WASIN FUJIKURA OPTICAL COMMUNICATION LTD. Address before: 210038 No. 76, Xingang Avenue, Nanjing economic and Technological Development Zone, Nanjing, Jiangsu Applicant before: Nanjing Fiberhome Fujikura Optical Communication Ltd. |
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Application publication date: 20131225 |