CN104932053B - Optical fiber coloring core wire - Google Patents
Optical fiber coloring core wire Download PDFInfo
- Publication number
- CN104932053B CN104932053B CN201410554036.4A CN201410554036A CN104932053B CN 104932053 B CN104932053 B CN 104932053B CN 201410554036 A CN201410554036 A CN 201410554036A CN 104932053 B CN104932053 B CN 104932053B
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- Prior art keywords
- optical fiber
- core wire
- pigment
- coloring
- layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The present invention provides the optical fiber coloring core wire that coloring layer is easily identified in a kind of environment darker at night etc..Optical fiber coloring core wire (1) is coated with multilayer resin layer in the periphery for the optical fiber (13) being made of fibre core (11) and covering (12), in the resin layer of multilayer, outermost resin layer is the coloring layer (16) added with pigment, it include the agglutinator of the pigment more than or equal to 1 in every 1cm on the length direction of the optical fiber coloring core wire, the longest of the agglutinator size of the pigment is partially in 3~30 μ ms.
Description
Technical field
The present invention relates to a kind of optical fiber coloring core wire, it is being made of more specifically to a kind of fibre core and covering
It is coated with the optical fiber coloring core wire of the resin layer of multilayer around optical fiber, includes coloring layer in the resin layer of the multilayer.
Background technique
The optical fiber utilized in optical communications forms following constructions, that is, the glass fibre being made of fibre core and covering is by by purple
Main layer and the sublevel cladding that outside line gel-type resin is constituted.Also, in general, in the outer peripheral surface shape for being coated with this 2 layers of optical fiber
Optical fibre core is constituted at the coloring layer added with colorant.It is added with the coloring layer of colorant by being arranged, makes every optical fiber
Identification become easy.The optical fibre core for being provided with the coloring layer is known as optical fiber coloring core wire.
As the coloring layer being arranged in optical fiber coloring core wire, it is known to use the ultraviolet hardening ink added with pigment
Structure.For example, in patent document 1, disclosing following structures, that is, more in the periphery setting for being made of optical fiber fibre core and covering
The resin layer of layer, also, most peripheral is provided with coloring layer, in this configuration, ultraviolet hardening is used as coloring layer
Ink, the ultraviolet hardening ink are to add pigment in epoxy acrylate etc. and formed.
Patent document 1: Japanese Unexamined Patent Publication 3-96907 bulletin
It is provided with the optical fiber coloring core wire of coloring layer, its identification becomes easy according to the color of coloring layer.But at night
Between etc. be difficult to see that coloring layer in darker environment, thus it is not easy to identify optical fiber coloring core wire.At this point, in darker environment
In, even if to optical fiber coloring core wire irradiation light, but the coloring layer in order to identify optical fiber coloring core wire, it is also desirable to irradiation luminous intensity
Biggish light, therefore, in this case, there is also be related to the project of identity in the dark.
Summary of the invention
The present invention proposes that it is darker at night etc. that its purpose is to provide a kind of in view of above-mentioned actual conditions
The optical fiber coloring core wire of coloring layer is easily identified in environment.
Optical fibre core according to the present invention is to be coated with multilayer tree in the periphery for the optical fiber being made of fibre core and covering
The optical fiber coloring core wire of rouge layer, wherein in the resin layer of multilayer, outermost resin layer is the coloring layer added with pigment,
It include the agglutinator of the pigment more than or equal to 1, the pigment in every 1cm on the length direction of the optical fiber coloring core wire
The longest of agglutinator size be partially in 3~30 μ ms.
The effect of invention
In accordance with the invention it is possible to provide it is a kind of at night etc. compared with the optical fiber coloring core for easily identifying coloring layer in dark situation
Line.
Detailed description of the invention
Fig. 1 is the figure for indicating the cross-section structure of an embodiment of optical fiber coloring core wire according to the present invention.
Fig. 2 is to indicate to evaluate optical fiber coloring core according to the size and number of the pigment of the coloring layer in optical fiber coloring core wire
The table of the embodiment of the identity of line.
The explanation of label
1 ... optical fiber coloring core wire, 11 ... fibre cores, 12 ... coverings, 13 ... optical fiber, 14 ... the 1st clads, 15 ... the 2nd claddings
Layer, 16 ... coloring layers.
Specific embodiment
It enumerates first and illustrates embodiments of the present invention.
(1) invention involved in the optical fiber coloring core wire of the application is in the periphery for the optical fiber being made of fibre core and covering
It is coated with the optical fiber coloring core wire of multilayer resin layer, wherein in the resin layer of multilayer, outermost resin layer is added with face
The coloring layer of material includes the solidifying of the pigment more than or equal to 1 in every 1cm on the length direction of the optical fiber coloring core wire
Collect object, the longest of the agglutinator size of the pigment is partially in 3~30 μ ms.It is darker at night etc. thereby, it is possible to provide
The optical fiber coloring core wire of coloring layer is easily identified in environment.
It (2) include less than or equal to described in 50 in every 1cm preferably on the length direction of the optical fiber coloring core wire
The longest of size is partially in the agglutinator of pigment in 3~30 μ ms.
(3) additionally, it is preferred that not including at the longest part for having the size in the coloring layer of the optical fiber coloring core wire
In the agglutinator more than the pigment in 30 μ ms.
(4) additionally, it is preferred that the Young's modulus of the innermost layer in the resin layer of multilayer is less than or equal to 0.8MPa.
Fig. 1 is the figure for indicating the cross-section structure of an embodiment of optical fiber coloring core wire according to the present invention.This reality
It applies optical fiber coloring core wire 1 involved in mode and includes optical fiber 13, be made of fibre core 11 and covering 12；The 1st be made of resin
Clad 14 and the 2nd clad 15, they are successively set on the periphery of optical fiber 13；Coloring layer 16, setting is in the 2nd cladding
On the periphery of layer 15.
The optical fiber 13 being made of fibre core 11 and covering 12 for example forms and by optical fiber base material heating melting and wire drawing.
Being coated on the 1st clad 14 (innermost layer) around optical fiber 13 and the 2nd clad 15 is the different layer of physical property each other, for example,
The Young's modulus of 1st clad 14 is set as lower than the 2nd clad 15 and is flexibly constituted, so that coming from optical fiber coloring core wire 1
The stress of outside buffered at the 1st clad 14.
Coloring layer 16 is formed by ultraviolet hardening ink.Pigment of the addition as colorant in ultraviolet hardening ink.
Above-mentioned structure is the example that can apply optical fiber coloring core wire of the invention.The present invention can be applied to down
State optical fiber coloring core wire, that is, multilayer resin layer is coated with around the optical fiber being made of fibre core and covering, in the resin layer
Outermost layer is provided with the optical fiber coloring core wire of coloring layer.
Embodiment according to the present invention, in above-mentioned optical fiber coloring core wire, when the pigment (face that coloring layer 16 is included
Expect agglutinator) size and number be in regulation in the range of when, if irradiation light in the dark, light reflect on pigment
And it is readily seen that.
(constituent of pigment is aggregated agglutinator of the defined range based on colorant and being formed has the 1 of specific dimensions
A agglutinator) the longest part of size differentiated.The longest part of the size of agglutinator is equivalent to the throwing for agglutinator
The major diameter of the maximum length of the diameter of agglutinator is indicated in diameter projected when its diameter of shadow image definition.
If irradiation light in the dark, the prescribed limit being readily seen that by the reflected light reflected on pigment is such as
Under:
(1) include in every 1cm on the length direction of optical fiber coloring core wire pigment more than or equal to 1 agglutination
The longest of object, the agglutinator size of the pigment is partially in 3~30 μ ms.At this point, if the face added in coloring layer
The size and number of material are in the prescribed limit, then when in darker environment to optical fiber coloring core wire irradiation light, by
In reflection delustering pigment flashing, it is readily seen that therefore, can identify the coloring layer of optical fiber coloring core wire.
It (2) include more than 50 sizes in every 1cm on the length direction of optical fiber coloring core wire in (1)
When longest is partially in the agglutinator of the pigment in the range of 3~30 μm, and
It (3) include that the longest of size is partially in more than the face in 30 μ ms in the coloring layer of optical fiber coloring core wire
When the agglutinator of material, the coloring layer of optical fiber coloring core wire is easily identified, but transmits loss and deteriorates, since this point is not preferred
Scheme.
The also Young's modulus by the 1st clad 14 being coated on around optical fiber 13 is lost in the transmission of optical fiber coloring core wire
Influence, if the Young's modulus of the 1st clad 14 is more than 0.8MPa, transmit loss sometimes more than 0.05dB/km.
(embodiment)
Fig. 2 is to indicate to evaluate optical fiber coloring core according to the size and number of the pigment of the coloring layer in optical fiber coloring core wire
The table of the embodiment of the identity of line.Sample No.1~6,8 are the embodiment that the coloring layer added with pigment is arranged, sample No.7
It is comparative example, sample No.7 has stepped construction identical with embodiment, and not including in outermost layer has pigment agglutinator.
Core diameter in each sample is 10 μm, and cladding diameter is 125 μm, and the diameter of the resin layer other than coloring layer is 245 μ
M, the diameter comprising the optical fiber coloring core wire including coloring layer are 255 μm.In addition, in all samples added with pigment,
The pigment concentration (concentration of the solid state component relative to ultraviolet hardening ink) of chromatograph is identical.
Herein, will there is the optical fiber coloring core wire of the coloring layer added with pigment to intercept 1cm in the longitudinal direction, with
The longest part of the size of the agglutinator for the pigment for including in chromatograph be less than 3 μm, 3~30 μm, the mode more than 30 μm carries out
It distinguishes, the quantity of microscope statistics pigment agglutinator is used to each distinguished in this way.
Then, to every kind of sample of the quantity for the agglutinator for counting pigment, identity is had rated.The evaluation of identity is
In the dark using the LED of 80 lumen brightness to sample irradiation light, if can identify that evaluation result is set as A by naked eyes,
If cannot identify, evaluation result is set as B.
In addition, transmission loss is also evaluated to every kind of sample.Herein, in the optical fiber coloring core above or equal to 10km
The coil of wire be wound on column diameter be 250mm, width be on the spool of 250mm in the state of, utilize optical time domain reflectometer (OTDR；
Optical Time Domain Reflectometry) (wavelength 1550nm) measurement transmission loss, calculate △ α=(measure object
Sample transmission loss-common optical fibre core (not including pigment agglutinator) transmission loss).Also, △ α≤
In the case where 0.05dB/km, evaluation result is good and is set as A, and in the case where △ α > 0.05dB/km, evaluation result is not
Sufficiently it is set as B.
It include more than or equal to 1 ruler in every 1cm on optical fiber coloring core wire length direction in above-mentioned evaluation result
The identity of sample No.1,3,4,5,6,8 of the pigment agglutinator that very little longest is partially in 3~30 μ ms is good.
At this point, transmission loss increases, and still, the identity of optical fiber as a purpose is good in sample No.6,8.If also considered
Transmission loss, then it is long in optical fiber coloring core wire to be preferably partially in the pigment agglutinator in 3~30 μ ms in the longest of size
It spends to exist in every 1cm on direction and is less than or equal to 50, and the Young's modulus of the 1st clad is less than or equal to 0.8MPa.In addition,
Under the conditions described above, the longest in the coloring layer of optical fiber coloring core wire not comprising size is partially in more than in 30 μ ms
The identity of sample No.1,4,5,6,8 of pigment agglutinator be good.In addition, do not include pigment agglutinator sample No.7,
Sample No.2 in every 1cm comprising 1 pigment less than 3 μm can not identify optical fiber under the same conditions.
The longest part for the pigment agglutinator for including in the coloring layer of optical fiber coloring core wire is more than the knowledge of 30 μm of No.3
Other property is good, but transmits and be lost more than 0.05dB/km, the side of being not preferred in the case where the requirement of transmission loss is relatively tight
Case.
As a result, when the quantity of the agglutinator of pigment and size are in prescribed limit, if in the dark to optical fiber coloring
The irradiation luminous intensity of core wire reaches the light of certain level, even not adding unrecognized environment in the case where pigment then,
It can identify the coloring layer of optical fiber coloring core wire.
Claims (5)
1. a kind of optical fiber coloring core wire is coated with multilayer resin layer in the periphery for the optical fiber being made of fibre core and covering,
In,
In the resin layer of multilayer, outermost resin layer is the coloring layer added with pigment,
It include the agglutinator of the pigment more than or equal to 1 in every 1cm on the length direction of the optical fiber coloring core wire, it should
The longest of the agglutinator size of pigment is partially in 3~30 μ ms,
Using the LED of 80 lumen brightness in the dark to the optical fiber coloring core wire irradiation light, can be identified by naked eyes described
Optical fiber coloring core wire.
2. optical fiber coloring core wire according to claim 1, wherein
It include less than or equal to the longest portion of 50 sizes in every 1cm on the length direction of the optical fiber coloring core wire
Divide the agglutinator of the pigment in the range of 3~30 μm.
3. optical fiber coloring core wire according to claim 1 or 2, wherein
The longest that not including in the coloring layer of the optical fiber coloring core wire has the size is partially in more than in 30 μ ms
Pigment agglutinator.
4. optical fiber coloring core wire according to claim 2, which is characterized in that the Young of the innermost layer in the resin layer of multilayer
Modulus is less than or equal to 0.8MPa.
5. optical fiber coloring core wire according to claim 3, which is characterized in that the Young of the innermost layer in the resin layer of multilayer
Modulus is less than or equal to 0.8MPa.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-053041 | 2014-03-17 | ||
| JP2014053041A JP2015176015A (en) | 2014-03-17 | 2014-03-17 | Optical fiber coloring core wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104932053A CN104932053A (en) | 2015-09-23 |
| CN104932053B true CN104932053B (en) | 2019-07-19 |
Family
ID=54119296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410554036.4A Active CN104932053B (en) | 2014-03-17 | 2014-10-17 | Optical fiber coloring core wire |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015176015A (en) |
| CN (1) | CN104932053B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303419A (en) * | 1998-05-28 | 2001-07-11 | Dsm有限公司 | Radiation-curable ink composition for coating optical glass fibers |
| CN103229083A (en) * | 2010-11-24 | 2013-07-31 | 古河电气工业株式会社 | Pigmented fiber optic cable core |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002368298A1 (en) * | 2002-10-23 | 2004-05-13 | Pirelli And C. S.P.A. | Optical fiber with thermoplastic material based coating |
| JP5255690B2 (en) * | 2011-12-27 | 2013-08-07 | 古河電気工業株式会社 | Optical fiber colored core, optical fiber tape, and optical fiber cable |
-
2014
- 2014-03-17 JP JP2014053041A patent/JP2015176015A/en active Pending
- 2014-10-17 CN CN201410554036.4A patent/CN104932053B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303419A (en) * | 1998-05-28 | 2001-07-11 | Dsm有限公司 | Radiation-curable ink composition for coating optical glass fibers |
| CN103229083A (en) * | 2010-11-24 | 2013-07-31 | 古河电气工业株式会社 | Pigmented fiber optic cable core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104932053A (en) | 2015-09-23 |
| JP2015176015A (en) | 2015-10-05 |
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