WO2018062364A1 - 光ファイバ着色心線、光ファイバケーブル、および光ファイバ着色心線の製造方法 - Google Patents
光ファイバ着色心線、光ファイバケーブル、および光ファイバ着色心線の製造方法 Download PDFInfo
- Publication number
- WO2018062364A1 WO2018062364A1 PCT/JP2017/035146 JP2017035146W WO2018062364A1 WO 2018062364 A1 WO2018062364 A1 WO 2018062364A1 JP 2017035146 W JP2017035146 W JP 2017035146W WO 2018062364 A1 WO2018062364 A1 WO 2018062364A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- layer
- modulus
- young
- primary layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4482—Code or colour marking
-
- 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
- G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
-
- 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
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/56—Processes for repairing optical cables
- G02B6/562—Processes for repairing optical cables locatable, e.g. using magnetic means
Definitions
- the present invention relates to an optical fiber colored core, an optical fiber cable, and a method for manufacturing an optical fiber colored core.
- an optical fiber colored core wire as shown in Patent Document 1 is known.
- the optical fiber colored core includes an optical fiber bare wire, a primary layer covering the bare optical fiber, a secondary layer covering the primary layer, and a colored layer disposed outside the secondary layer.
- the primary layer is formed of a soft material having a small Young's modulus, so that the external force applied to the bare optical fiber can be relieved and an increase in light transmission loss due to the external force can be suppressed.
- positioned on the outer side of a primary layer an optical fiber bare wire and a primary layer can be protected from external force by forming with a high Young's modulus and a hard material.
- the colored layer is colored to identify the optical fiber colored core wires.
- the primary layer described above may be formed of a UV curable resin.
- the UV curable resin serving as the primary layer is cured by irradiating with UV light, the reliability of the optical fiber colored core wire may be lowered due to insufficient curing.
- the present invention has been made in view of such circumstances, and an object thereof is to ensure the reliability of an optical fiber colored core wire in which a primary layer is formed of a UV curable resin.
- an optical fiber colored core wire includes an optical fiber bare wire, a primary layer formed of a UV curable resin covering the bare optical fiber, A secondary layer formed of a UV curable resin covering the primary layer, and a colored layer formed of a colored UV curable resin disposed outside the secondary layer, wherein the Young's modulus of the primary layer is The saturation Young's modulus of the primary layer is 70% or more.
- the reliability of the optical fiber colored core wire in which the primary layer is formed of a UV curable resin can be ensured.
- FIG. 1 is a sectional view of an optical fiber colored core wire according to this embodiment.
- the optical fiber colored core wire 1 includes an optical fiber bare wire 2, a primary layer 3, a secondary layer 4, and a colored layer 5.
- the bare optical fiber 2 is formed of, for example, quartz glass and transmits light.
- the mode field diameter (MFD) of the bare optical fiber 2 is, for example, 8.2 to 9.6 ⁇ m for light having a wavelength of 1310 nm.
- the primary layer 3 is made of a UV curable resin and covers the bare optical fiber 2.
- the secondary layer 4 is formed of a UV curable resin and covers the primary layer 3.
- the colored layer 5 is formed of a colored UV curable resin and is disposed outside the primary layer 3 and the secondary layer 4.
- the specific material of UV curable resin used as the primary layer 3, the secondary layer 4, and the colored layer 5 may mutually be the same, and may differ respectively.
- these UV curable resins for example, acrylate resins can be used.
- the optical fiber colored core wire 1 can be used as, for example, an intermittently fixed optical fiber tape.
- the intermittently fixed type optical fiber tape is an optical fiber tape in which a plurality of optical fiber colored core wires 1 are arranged in parallel and adjacent optical fiber colored core wires 1 are intermittently connected by a plurality of connecting portions.
- the intermittently fixed type optical fiber tape can be rounded in the width direction to be cylindrical or folded. For this reason, a plurality of optical fiber colored core wires 1 can be bundled with high density by using an intermittently fixed type optical fiber tape.
- the optical fiber colored core wire 1 can be used for a loose tube cable, a slot type cable, a ribbon type center tube cable, a wrapping tube cable, a micro duct cable, and the like.
- the micro duct cable is a kind of loose tube cable, in which optical fibers are packed in a thin loose tube at high density. Due to such a structure, a relatively strong lateral pressure acts on the optical fiber colored core wire 1 in the loose tube cable, and the light transmission loss may increase due to microbending.
- the secondary layer 4 or the colored layer 5 is formed of a hard material, and the primary layer 3 is formed of a soft material. It is valid. Thus, by softening the primary layer 3 in contact with the bare optical fiber 2 and hardening the secondary layer 4 or the colored layer 5 located outside the primary layer 3, the bare optical fiber 2 can be effectively removed from external force. Can be protected.
- the Young's modulus of the secondary layer 4 or the colored layer 5 is preferably in the range of 700 MPa to 1400 MPa, for example.
- FIG. 2 is a view showing an example of an optical fiber cable 50 using the optical fiber colored core wire 1.
- the optical fiber cable 50 includes a plurality of optical fiber colored core wires 1, a binding material 53, a wrapping tube 54, a cylindrical sheath 55, a pair of strength members 56, and a pair of tear strings 57. ing.
- the binding material 53 bundles a plurality of optical fiber colored core wires 1.
- the wrapping tube 54 covers the optical fiber colored core wire 1 bundled with the binding material 53.
- the sheath 55 covers the optical fiber colored core wire 1 together with the wrapping tube 54.
- the pair of strength members 56 are embedded in the sheath 55.
- the pair of tear strings 57 are embedded at positions close to the inner peripheral surface in the sheath 55.
- marker protrusions 58 project from the positions where the pair of tear strings 57 are arranged.
- the marker protrusion 58 is formed along the tear string 57 and indicates a position where the tear string 57 is embedded.
- the optical fiber cable 50 may not include the wrapping tube 54, the tensile body 56, the tear string 57, and the marker protrusion 58.
- a bare wire forming process is first performed.
- the optical fiber bare wire 2 is formed.
- the bare optical fiber 2 is drawn out of, for example, a glass base material heated to about 2000 ° C. and formed to have a desired outer diameter.
- the outer diameter of the bare optical fiber 2 is, for example, about several hundred ⁇ m.
- a primary layer forming step is performed.
- a UV curable resin to be the primary layer 3 is applied around the bare optical fiber 2. Thereafter, the applied UV curable resin is irradiated with UV light and cured to form the primary layer 3.
- a secondary layer forming step is performed.
- a UV curable resin that becomes the secondary layer 4 is applied around the primary layer 3. Thereafter, the applied UV curable resin is irradiated with UV light and cured to form the secondary layer 4. In addition, after applying the UV curable resin that becomes the primary layer 3 around the bare optical fiber 2, the UV curable resin that becomes the secondary layer 4 is continuously applied thereon and irradiated with UV light.
- the primary layer 3 and the secondary layer 4 may be cured together. That is, the primary layer forming step and the secondary layer forming step may be performed simultaneously.
- a colored layer forming step is performed.
- a UV curable resin that becomes the colored layer 5 is applied around the secondary layer 4. Thereafter, the applied UV curable resin is irradiated with UV light and cured to form the colored layer 5. Thereby, the optical fiber colored core wire 1 is obtained.
- the optical fiber cable 50 is obtained by accommodating the optical fiber colored core wire 1 in the sheath 55.
- UV light irradiation is performed a plurality of times.
- this inventor discovered that hardening of the primary layer 3 may advance also in the process after a primary layer formation process. Specifically, when the primary layer 3 is not sufficiently cured in the primary layer forming step, the UV light transmitted through the secondary layer 4 and the colored layer 5 is irradiated to the primary layer 3 when the UV light is irradiated in the subsequent step. And the hardening of the primary layer 3 proceeds.
- the Young's modulus of the primary layer 3 becomes hard beyond a desired range, and the light transmission loss may increase due to insufficient effect of the external layer to relax the external force. . Further, due to insufficient curing of the primary layer 3, the primary layer 3 is peeled off from the bare optical fiber 2 when the water contacts the colored optical fiber 1, or the primary layer 3 and the bare optical fiber are separated. In some cases, water bubbles may be interposed between the wire 2 and a side pressure may be applied to the bare optical fiber 2.
- the MFD is 9.1 ⁇ m
- the outer diameter of the bare optical fiber 2 is 125 ⁇ m
- the outer diameter of the primary layer 3 is 190 ⁇ m
- the outer diameter of the secondary layer 4 is 239 ⁇ m in light having a wavelength of 1310 nm.
- the optical fiber colored core wire 1 having an outer diameter of the colored layer 5 of 252 ⁇ m is used.
- the optical fiber colored core wire 1 is compliant with G652D or G657A1 established by, for example, the International Telecommunication Union Telecommunication Standardization Sector (ITU-T).
- the outer diameters of the primary layer 3, the secondary layer 4 and the colored layer 5 described above are design values, and actual dimensions have an error of about ⁇ 3 ⁇ m. Moreover, the said dimension etc. are examples, The result obtained from each example shown in Table 1 is applicable also to the optical fiber colored core wire 1 which changed the dimension and MDF from said value.
- Primary Young's modulus in Table 1 refers to the Young's modulus of the primary layer 3 in each state during the manufacturing process of the optical fiber cable 50.
- “primary Young's modulus before coloring” indicates the Young's modulus of the primary layer 3 after the secondary layer forming step.
- the “primary Young's modulus after coloring” indicates the Young's modulus of the primary layer 3 after the colored layer forming step.
- the Young's modulus of the primary layer 3 is obtained by measuring the strain by applying a shear stress to the primary layer 3 with the bare optical fiber 2 fixed, and drawing a stress-strain curve.
- the Young's modulus of Example 1 For example, focusing on the primary Young's modulus of Example 1, it is 0.50 MPa before coloring and 0.60 MPa after coloring. As described above, the Young's modulus of the primary layer 3 increases as the process proceeds, meaning that the curing of the primary layer 3 is progressing by the UV light transmitted through the secondary layer 4 and the colored layer 5. To do. This tendency is common to Examples 1 to 6 and Comparative Examples 1 to 5.
- the degree of curing is shown together with the value of each primary Young's modulus.
- the degree of cure is the ratio of the primary Young's modulus to the numerical value of the saturated primary Young's modulus described later.
- the primary Young's modulus before coloring in Example 1 is 0.50 MPa
- the saturated primary Young's modulus is 0.70 MPa.
- the degree of curing before coloring in Example 1 can be calculated as 0.50 ⁇ 0.70 ⁇ 0.71 (71%). Therefore, in the column of “primary Young's modulus before coloring” in Example 1, a value of 71% indicating the degree of cure is written together with a value of 0.50 MPa.
- “Saturated primary Young's modulus” in Table 1 indicates the saturated Young's modulus of the primary layer 3. More specifically, in a state where the UV curable resin that becomes the primary layer 3 is applied to the bare optical fiber 2, UV light including a wavelength that contributes to the curing reaction is sufficient for the primary layer 3 to completely cure. It means the Young's modulus of the primary layer 3 when only irradiation is performed. For example, in this embodiment, when UV light having a central wavelength of about 365 nm is irradiated to the UV curable resin to be the primary layer 3 at 1 J / cm 2 , the Young layer of the primary layer 3 can be irradiated even if UV light is further irradiated. The rate did not increase.
- This state is defined as a state in which the primary layer 3 is completely cured. Moreover, since the above-mentioned “curing degree” is calculated based on the saturated Young's modulus, it is an index indicating how much the primary layer 3 is cured in each state.
- the “microbend characteristics” in Table 1 indicates the stability of light transmission with respect to the lateral pressure of the optical fiber colored core wire 1. Specifically, in IEC-TR62221 Method-B, the magnitude of the transmission loss of light transmitted through the bare optical fiber 2 under the conditions of tension 1N, sandpaper # 360, length 600 m, bobbin size ⁇ 400 mm It is measured.
- “Cable characteristics” in Table 1 shows the results of measuring the magnitude of light transmission loss when an optical fiber cable was prepared using the optical fiber colored core wire 1.
- the transmission loss of light having a wavelength of 1550 nm is 0.05 dB. If it is less than / km, it is OK (good), and if it is larger, it is NG (bad).
- the numerical value of the above-mentioned micro bend characteristic is large, since the transmission loss of light tends to increase by applying a side pressure to the optical fiber colored core wire 1, the cable characteristic is also likely to deteriorate.
- the value of “microbend characteristics in a colored state” is 0.32 dB / km, which is the largest in Table 1, and the test result of “cable characteristics” is also poor.
- the “ribbon 60 ° C. hot water immersion test” in Table 1 indicates the stability of the ribbon-formed optical fiber colored core wire 1 with respect to water. Specifically, a ribbon formed by connecting 12 optical fiber colored core wires 1 was immersed in warm water at 60 ° C. for 1 month. If the transmission loss of light having a wavelength of 1550 nm is 0.05 dB / km or less in an immersed state or after being taken out from warm water, it is OK (good), and if it is larger, it is NG (bad).
- the optimum numerical range of the primary Young's modulus after coloring will be considered.
- the primary Young's modulus after coloring is high, when an external force is applied to the optical fiber colored core wire 1 after being cabled, the external force applied to the bare optical fiber 2 is insufficiently relaxed and light transmission loss increases. .
- the primary layer 3 that receives external force is greatly deformed, so that the external force applied to the bare optical fiber 2 becomes insufficient, and the light transmission loss increases. To do. Therefore, the optimum numerical range of the primary Young's modulus after coloring can be determined from the test result of the cable characteristics.
- Example 5 in which the value of the primary Young's modulus after coloring is relatively large.
- the test result of the cable characteristics is good.
- the primary Young's modulus after coloring is 0.74 MPa
- Comparative Example 1 which is the second largest after Example 5 has a poor cable characteristic test result. From this result, it is preferable that the primary Young's modulus after coloring is 0.72 MPa or less.
- Example 4 and Comparative Example 5 in which the value of the primary Young's modulus after coloring is relatively small.
- the test result of the cable characteristics is good.
- the primary Young's modulus after coloring is 0.15 MPa
- Comparative Example 5 which is the second smallest after Example 4 has a poor cable characteristic test result. From this result, it is preferable that the primary Young's modulus after coloring is 0.17 MPa or more. From the above consideration, the primary Young's modulus after coloring is preferably in the range of 0.17 MPa to 0.72 MPa.
- the optimum numerical range of the ratio of the primary Young's modulus after coloring to the saturated primary Young's modulus (hereinafter simply referred to as “degree of hardening after coloring”) will be considered.
- degree of hardening after coloring When the degree of cure after coloring is low, when the ribbon 60 ° C. hot water immersion test is performed, the primary layer 3 is eluted in the water in contact with the optical fiber colored core wire 1 and the light transmission loss increases. Therefore, the optimum numerical range of the degree of cure after coloring can be judged from the result of the ribbon 60 ° C. hot water immersion test.
- Example 4 In Table 1, attention is paid to Example 4 and Comparative Example 3 in which the value of the degree of cure after coloring is relatively small.
- Example 4 In Example 4 in which the degree of cure after coloring is 70%, the result of the ribbon 60 ° C. hot water immersion test is good.
- the maximum value of the degree of cure after coloring in Table 1 is 97% of Example 5, but it is considered that elution of the primary layer 3 can be more reliably suppressed when the degree of cure after coloring is greater than 97%. Therefore, the degree of cure after coloring may be greater than 97%.
- the Young's modulus of the primary layer 3 in the state where the colored layer 5 is formed and becomes the optical fiber colored core wire 1 is preferably set to 70% or more with respect to the saturated Young's modulus of the primary layer 3. . If it does in this way, the hardening degree of the primary layer 3 in the state of the optical fiber colored core wire 1 will reach a sufficient level to satisfy the characteristics of the optical fiber colored core wire 1. Thereby, it can suppress that the primary layer 3 elutes when the optical fiber colored core wire 1 contacts with water. Therefore, an increase in light transmission loss caused by contact of the optical fiber colored core wire 1 with water can be suppressed and reliability can be ensured.
- the primary layer 3 is formed of a material having a saturation Young's modulus of 0.88 MPa or less, even if the primary layer 3 is hardened after the primary layer forming process, the primary layer 3 is not colored with an optical fiber. It becomes soft enough to satisfy the characteristic of 1. Therefore, the external force transmitted to the bare optical fiber 2 can be relaxed and the anti-microbend characteristics can be ensured.
- the Young's modulus of the primary layer 3 in the state of the optical fiber colored core wire 1 is set to 0.72 MPa or less, the transmission loss of light that occurs when a side pressure is applied to the optical fiber colored core wire 1 can be suppressed. In addition, the microbend resistance can be ensured. Further, by setting the Young's modulus to 0.17 MPa or more, it is possible to suppress the relaxation of the external force applied to the bare optical fiber 2 due to the excessively soft primary layer 3.
- the primary layer 3 and the bare optical fiber 2 can be protected from external force or impact.
- the optical fiber cable 50 is preferably manufactured using the optical fiber colored core wire 1 in which the primary layer 3 has a post-coloring curing degree of 70% or more. Thereby, for example, even when water enters the sheath 55, the primary layer 3 can be prevented from peeling from the bare optical fiber 2, and the reliability of the optical fiber cable 50 can be secured.
- the colored layer 5 also serves as the secondary layer 4 so that the primary layer 3 and the colored layer 5 are adjacent to each other. You may do it.
- the primary Young's modulus before coloring refers to the Young's modulus of the primary layer 3 after the primary layer forming step.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
Description
本願は、2016年9月30日に、日本に出願された特願2016-194549号に基づき優先権を主張し、その内容をここに援用する。
図1は、本実施形態に係る光ファイバ着色心線の断面図である。図1に示すように、光ファイバ着色心線1は、光ファイバ裸線2と、プライマリ層3と、セカンダリ層4と、着色層5と、を備えている。
なお、プライマリ層3、セカンダリ層4、および着色層5となるUV硬化型樹脂の具体的な材質は互いに同じであってもよく、それぞれ異なっていてもよい。これらのUV硬化型樹脂としては、例えばアクリレート樹脂などを用いることができる。
次に、プライマリ層形成工程が行われる。プライマリ層形成工程では、光ファイバ裸線2の周囲に、プライマリ層3となるUV硬化型樹脂を塗布する。その後、塗布したUV硬化型樹脂にUV光を照射して硬化させ、プライマリ層3を形成する。
次に、セカンダリ層形成工程が行われる。セカンダリ層形成工程では、プライマリ層3の周囲にセカンダリ層4となるUV硬化型樹脂を塗布する。その後、塗布したUV硬化型樹脂にUV光を照射して硬化させ、セカンダリ層4を形成する。なお、光ファイバ裸線2の周囲にプライマリ層3となるUV硬化型樹脂を塗布後、その上にセカンダリ層4となるUV硬化型樹脂を続けて塗布し、これにUV光を照射することでプライマリ層3およびセカンダリ層4をまとめて硬化させてもよい。つまり、プライマリ層形成工程およびセカンダリ層形成工程は同時に行われてもよい。
次に、光ファイバ着色心線1をシース55の内部に収容することで、光ファイバケーブル50が得られる。
表1の「プライマリヤング率」とは、光ファイバケーブル50の製造工程中の各状態におけるプライマリ層3のヤング率をいう。例えば、「着色前のプライマリヤング率」は、セカンダリ層形成工程後におけるプライマリ層3のヤング率を示す。また、「着色後のプライマリヤング率」は、着色層形成工程後におけるプライマリ層3のヤング率を示す。
上記プライマリ層3のヤング率は、光ファイバ裸線2を固定した状態でプライマリ層3に対してせん断応力を与えてひずみを測定し、応力-ひずみ曲線を描くことで求められる。
なお、先述のマイクロベンド特性の数値が大きい場合、光ファイバ着色心線1に側圧が印加することで光の伝達損失が増大しやすいため、ケーブル特性も低下しやすい。例えば、比較例2は「着色状態でのマイクロベンド特性」の数値が0.32dB/kmであり表1中で最も大きく、「ケーブル特性」の試験結果も不良となっている。
次に、着色後のプライマリヤング率の最適な数値範囲について考察する。
着色後のプライマリヤング率が高い場合は、ケーブル化して光ファイバ着色心線1に外力が加わった場合に、光ファイバ裸線2に加わる外力の緩和が不充分となり、光の伝達損失が増加する。また、着色後のプライマリヤング率が過剰に低い場合も、外力を受けたプライマリ層3が大きく変形することで、光ファイバ裸線2に加わる外力の緩和が不充分となり、光の伝達損失が増加する。従って、着色後のプライマリヤング率の最適な数値範囲は、ケーブル特性の試験結果から判断することができる。
以上の考察により、着色後のプライマリヤング率は0.17MPa以上0.72MPa以下の範囲であることが好ましい。
次に、着色後のプライマリヤング率の飽和プライマリヤング率に対する割合(以下、単に「着色後硬化度」という)の最適な数値範囲について考察する。
着色後硬化度が低い場合、リボン60℃温水浸漬試験の実施時に、光ファイバ着色心線1に接触した水にプライマリ層3が溶出し、光の伝達損失が大きくなる。従って、着色後硬化度の最適な数値範囲は、リボン60℃温水浸漬試験の結果から判断することができる。
着色後硬化度が70%である実施例4は、リボン60℃温水浸漬試験の結果が良好となっている。一方、着色後硬化度が実施例4の次に小さく68%である比較例3のリボン60℃温水浸漬試験の結果は不良となっている。この結果から、着色後硬化度は70%以上であることが好ましい。
なお、表1における着色後硬化度の最大値は実施例5の97%であるが、着色後硬化度が97%より大きい場合、プライマリ層3の溶出をより確実に抑えられると考えられる。従って、着色後硬化度は97%より大きくてもよい。
次に、飽和プライマリヤング率の最適な数値範囲について考察する。
表1の比較例2に着目すると、着色後硬化度が80%であり、比較的大きいにもかかわらず、ケーブル特性が不良となっている。これは、飽和プライマリヤング率が1.10MPaであり比較的大きく、硬い材質をプライマリ層3として用いているためであると考えられる。
ここで、表1のうち、飽和プライマリヤング率が比較例2の次に大きいのは、実施例3の0.88MPaであり、実施例3のケーブル特性は良好となっている。
この結果から、プライマリ層3の飽和ヤング率は0.88MPa以下であることが好ましい。
Claims (8)
- 光ファイバ裸線と、
前記光ファイバ裸線を覆うUV硬化型樹脂により形成されたプライマリ層と、
前記プライマリ層を覆うUV硬化型樹脂により形成されたセカンダリ層と、
前記セカンダリ層の外側に配置され、着色されたUV硬化型樹脂により形成された着色層と、を備え、
前記プライマリ層のヤング率が、前記プライマリ層の飽和ヤング率に対して70%以上である、光ファイバ着色心線。 - 前記プライマリ層の飽和ヤング率が0.88MPa以下である、請求項1に記載の光ファイバ着色心線。
- 前記プライマリ層のヤング率が、0.17MPa以上0.72MPa以下である、請求項1または2に記載の光ファイバ着色心線。
- 前記着色層のヤング率が700MPa以上1400MPa以下である、請求項1から3のいずれか1項に記載の光ファイバ着色心線。
- 前記セカンダリ層のヤング率が、700MPa以上1400MPa以下である、請求項1から3のいずれか1項に記載の光ファイバ着色心線。
- 請求項1から請求項5のいずれか1項に記載の光ファイバ着色心線と、
前記光ファイバ着色心線を内部に収容するシースと、を備える光ファイバケーブル。 - 光ファイバ裸線を形成する裸線形成工程と、
前記光ファイバ裸線の周囲にUV硬化型樹脂を塗布し、UV光を照射してプライマリ層を形成するプライマリ層形成工程と、
前記プライマリ層の周囲にUV硬化型樹脂を塗布し、UV光を照射して着色層を形成する着色層形成工程と、を有し、
前記着色層形成工程後の前記プライマリ層のヤング率が、前記プライマリ層の飽和ヤング率に対して70%以上である、光ファイバ着色心線の製造方法。 - 光ファイバ裸線と、
前記光ファイバ裸線を覆うUV硬化型樹脂により形成されたプライマリ層と、
前記プライマリ層の外側に配置され、着色されたUV硬化型樹脂により形成された着色層と、を備え、
前記プライマリ層のヤング率が、前記プライマリ層の飽和ヤング率に対して70%以上である、光ファイバ着色心線。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020197008861A KR102325812B1 (ko) | 2016-09-30 | 2017-09-28 | 광섬유 착색 심선, 광섬유 케이블 및 광섬유 착색 심선의 제조 방법 |
| CA3038632A CA3038632C (en) | 2016-09-30 | 2017-09-28 | Optical fiber colored core wire, optical fiber cable, and method of manufacturing optical fiber colored core wire |
| JP2018542838A JP6841836B2 (ja) | 2016-09-30 | 2017-09-28 | 光ファイバ着色心線の製造方法および光ファイバケーブルの製造方法 |
| EP17856313.6A EP3521883A4 (en) | 2016-09-30 | 2017-09-28 | Optical fiber colored core, optical fiber cable, and method for manufacturing optical fiber colored core |
| CN201780053298.4A CN109643000A (zh) | 2016-09-30 | 2017-09-28 | 光纤着色芯线、光纤电缆以及光纤着色芯线的制造方法 |
| AU2017338241A AU2017338241A1 (en) | 2016-09-30 | 2017-09-28 | Optical fiber colored core wire, optical fiber cable, and method of manufacturing optical fiber colored core wire |
| US16/337,858 US10838159B2 (en) | 2016-09-30 | 2017-09-28 | Optical fiber colored core wire, optical fiber cable, and method of manufacturing optical fiber colored core wire |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-194549 | 2016-09-30 | ||
| JP2016194549 | 2016-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018062364A1 true WO2018062364A1 (ja) | 2018-04-05 |
Family
ID=61762840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2017/035146 Ceased WO2018062364A1 (ja) | 2016-09-30 | 2017-09-28 | 光ファイバ着色心線、光ファイバケーブル、および光ファイバ着色心線の製造方法 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10838159B2 (ja) |
| EP (1) | EP3521883A4 (ja) |
| JP (1) | JP6841836B2 (ja) |
| KR (1) | KR102325812B1 (ja) |
| CN (1) | CN109643000A (ja) |
| AU (1) | AU2017338241A1 (ja) |
| CA (1) | CA3038632C (ja) |
| WO (1) | WO2018062364A1 (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022092089A1 (ja) * | 2020-10-29 | 2022-05-05 | 古河電気工業株式会社 | 光ファイバ着色心線、光ファイバリボン、単心ファイバの集合体ケーブル、リボンケーブルおよびこれらの製造方法 |
| WO2022191097A1 (ja) | 2021-03-10 | 2022-09-15 | 古河電気工業株式会社 | 光ファイバ着色心線、光ファイバリボン、単心ファイバの集合体ケーブル、光ファイバリボンケーブル、およびこれらの製造方法 |
| WO2022264873A1 (ja) * | 2021-06-14 | 2022-12-22 | 古河電気工業株式会社 | 光ファイバ着色心線、光ファイバリボン、光ファイバリボンケーブル、およびこれらの製造方法 |
| JP2023081056A (ja) * | 2021-11-30 | 2023-06-09 | 古河電気工業株式会社 | 光ファイバリボン及び光ファイバリボンの製造方法 |
| JP2023109095A (ja) * | 2022-01-26 | 2023-08-07 | 古河電気工業株式会社 | 光ファイバリボン及び光ファイバリボンの製造方法 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6841836B2 (ja) | 2016-09-30 | 2021-03-10 | 株式会社フジクラ | 光ファイバ着色心線の製造方法および光ファイバケーブルの製造方法 |
| KR102326802B1 (ko) * | 2016-09-30 | 2021-11-15 | 가부시키가이샤후지쿠라 | 광섬유 리본, 광섬유 케이블, 및 광섬유 리본의 제조 방법 |
| EP4102275A4 (en) * | 2020-02-07 | 2024-03-06 | Fujikura Ltd. | OPTICAL FIBER CABLE AND METHOD FOR MANUFACTURING OPTICAL FIBER CABLE |
| CN113979648A (zh) * | 2021-12-24 | 2022-01-28 | 南京华信藤仓光通信有限公司 | 一种光模块用光纤带的制造方法 |
| US11757960B1 (en) | 2022-02-23 | 2023-09-12 | Iheartmedia Management Services, Inc. | Disaster recovery in media broadcast system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62202842A (ja) * | 1986-03-03 | 1987-09-07 | Nippon Telegr & Teleph Corp <Ntt> | 紫外線硬化樹脂被覆光フアイバの高速被覆方法 |
| JPH0769686A (ja) * | 1993-08-31 | 1995-03-14 | Dainippon Ink & Chem Inc | 光ファイバ被覆用紫外線硬化型樹脂組成物 |
| JP2011128377A (ja) * | 2009-12-17 | 2011-06-30 | Furukawa Electric Co Ltd:The | 光ファイバ心線 |
| US20110274397A1 (en) * | 2010-05-05 | 2011-11-10 | Ofs Fitel, Llc | Tight-buffered optical fiber having improved fiber access |
| JP2013134477A (ja) | 2011-12-27 | 2013-07-08 | Furukawa Electric Co Ltd:The | 光ファイバ着色心線、光ファイバテープ心線および光ファイバケーブル |
| JP2015086087A (ja) * | 2013-10-29 | 2015-05-07 | 古河電気工業株式会社 | オーバーコート心線及び当該オーバーコート心線を備えた光ファイバケーブル |
| JP2016194549A (ja) | 2015-03-31 | 2016-11-17 | キヤノン株式会社 | ステージ装置および顕微鏡 |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62202842U (ja) * | 1986-06-18 | 1987-12-24 | ||
| JPH01212255A (ja) | 1988-02-19 | 1989-08-25 | Fujikura Ltd | 光ファイバの被覆方法および被覆装置 |
| JPH0560953A (ja) | 1991-09-03 | 1993-03-12 | Sumitomo Electric Ind Ltd | 光伝送用ガラスフアイバ |
| JPH07267687A (ja) | 1994-03-31 | 1995-10-17 | Fujikura Ltd | 光ファイバの被覆方法 |
| JP2928723B2 (ja) | 1994-04-15 | 1999-08-03 | 株式会社フジクラ | 光ファイバの製法 |
| JPH092844A (ja) | 1995-06-16 | 1997-01-07 | Fujikura Ltd | 光ファイバ素線の製法 |
| US6553169B2 (en) | 2000-11-29 | 2003-04-22 | Corning Incorporated | Optical fiber coating compositions and coated optical fibers |
| US6907175B2 (en) | 2001-02-20 | 2005-06-14 | Sumitomo Electric Industries, Ltd. | Coated optical fiber, optical fiber tape core using it and optical fiber unit |
| WO2003100495A1 (fr) | 2002-05-28 | 2003-12-04 | Sumitomo Electric Industries, Ltd. | Bague de gainage pour fibres optiques |
| JP2004012679A (ja) * | 2002-06-05 | 2004-01-15 | Fujikura Ltd | 視認性細径光ファイバ素線 |
| US6804442B1 (en) | 2002-06-07 | 2004-10-12 | Fujikura Ltd. | Optical fiber and optical fiber cable having a first jacket layer and a second jacket layer and a coefficient of thermal expansion selecting method |
| EP1596234A4 (en) * | 2003-02-20 | 2006-03-22 | Sumitomo Electric Industries | COATED OPTICAL FIBER AND COATED OPTICAL FIBER WITH CONNECTOR |
| JP2005162522A (ja) | 2003-12-01 | 2005-06-23 | Sumitomo Electric Ind Ltd | 被覆線条体の製造方法、及び被覆線条体製造装置 |
| JP2006084770A (ja) * | 2004-09-16 | 2006-03-30 | Hitachi Cable Ltd | 着色被覆光ファイバ心線及びその製造方法 |
| JP2006113448A (ja) | 2004-10-18 | 2006-04-27 | Hitachi Cable Ltd | 光ファイバ心線及びその製造方法 |
| JP2007333795A (ja) | 2006-06-12 | 2007-12-27 | Furukawa Electric Co Ltd:The | 光ファイバ心線及びその製造方法 |
| JP5041450B2 (ja) | 2010-11-24 | 2012-10-03 | 古河電気工業株式会社 | 光ファイバ着色心線 |
| JP5654945B2 (ja) | 2011-05-09 | 2015-01-14 | 株式会社フジクラ | 光ユニット |
| JP5417406B2 (ja) | 2011-10-12 | 2014-02-12 | 株式会社フジクラ | 光ファイバ素線の製造方法 |
| JP5564026B2 (ja) * | 2011-10-18 | 2014-07-30 | 株式会社フジクラ | 光ファイバテープ心線及びその光ファイバテープ心線を収納した光ファイバケーブル |
| JP5294357B2 (ja) | 2012-02-15 | 2013-09-18 | 古河電気工業株式会社 | 光ファイバ着色心線、光ファイバテープ心線及び光ファイバケーブル |
| JP5465741B2 (ja) * | 2012-02-17 | 2014-04-09 | 古河電気工業株式会社 | 光ファイバ心線、光ファイバテープ心線および光ケーブル |
| US9678247B2 (en) | 2012-05-08 | 2017-06-13 | Corning Incorporated | Primary optical fiber coating composition containing non-radiation curable component |
| KR101512881B1 (ko) | 2012-05-31 | 2015-04-16 | 주식회사 엘지화학 | 가스 차단 필름 및 이의 제조방법 |
| JP5790942B2 (ja) * | 2012-06-22 | 2015-10-07 | 住友電気工業株式会社 | 光ファイバ素線 |
| JP6106253B1 (ja) | 2015-12-04 | 2017-03-29 | 株式会社フジクラ | 光ファイバテープ、光ファイバテープの製造方法、及び間欠固定型光ファイバテープの連結部の形成に用いられる紫外線硬化樹脂組成物 |
| KR102326802B1 (ko) | 2016-09-30 | 2021-11-15 | 가부시키가이샤후지쿠라 | 광섬유 리본, 광섬유 케이블, 및 광섬유 리본의 제조 방법 |
| JP6841836B2 (ja) | 2016-09-30 | 2021-03-10 | 株式会社フジクラ | 光ファイバ着色心線の製造方法および光ファイバケーブルの製造方法 |
| CA3088032A1 (en) | 2018-01-15 | 2019-07-18 | Prysmian S.P.A. | A method for producing a flexible optical fiber ribbon and said ribbon. |
-
2017
- 2017-09-28 JP JP2018542838A patent/JP6841836B2/ja active Active
- 2017-09-28 CN CN201780053298.4A patent/CN109643000A/zh active Pending
- 2017-09-28 EP EP17856313.6A patent/EP3521883A4/en not_active Withdrawn
- 2017-09-28 US US16/337,858 patent/US10838159B2/en active Active
- 2017-09-28 CA CA3038632A patent/CA3038632C/en active Active
- 2017-09-28 WO PCT/JP2017/035146 patent/WO2018062364A1/ja not_active Ceased
- 2017-09-28 AU AU2017338241A patent/AU2017338241A1/en not_active Abandoned
- 2017-09-28 KR KR1020197008861A patent/KR102325812B1/ko active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62202842A (ja) * | 1986-03-03 | 1987-09-07 | Nippon Telegr & Teleph Corp <Ntt> | 紫外線硬化樹脂被覆光フアイバの高速被覆方法 |
| JPH0769686A (ja) * | 1993-08-31 | 1995-03-14 | Dainippon Ink & Chem Inc | 光ファイバ被覆用紫外線硬化型樹脂組成物 |
| JP2011128377A (ja) * | 2009-12-17 | 2011-06-30 | Furukawa Electric Co Ltd:The | 光ファイバ心線 |
| US20110274397A1 (en) * | 2010-05-05 | 2011-11-10 | Ofs Fitel, Llc | Tight-buffered optical fiber having improved fiber access |
| JP2013134477A (ja) | 2011-12-27 | 2013-07-08 | Furukawa Electric Co Ltd:The | 光ファイバ着色心線、光ファイバテープ心線および光ファイバケーブル |
| JP2015086087A (ja) * | 2013-10-29 | 2015-05-07 | 古河電気工業株式会社 | オーバーコート心線及び当該オーバーコート心線を備えた光ファイバケーブル |
| JP2016194549A (ja) | 2015-03-31 | 2016-11-17 | キヤノン株式会社 | ステージ装置および顕微鏡 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3521883A4 |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022092089A1 (ja) * | 2020-10-29 | 2022-05-05 | 古河電気工業株式会社 | 光ファイバ着色心線、光ファイバリボン、単心ファイバの集合体ケーブル、リボンケーブルおよびこれらの製造方法 |
| JPWO2022092089A1 (ja) * | 2020-10-29 | 2022-05-05 | ||
| JP7688041B2 (ja) | 2020-10-29 | 2025-06-03 | 古河電気工業株式会社 | 光ファイバ着色心線、光ファイバリボン、単心ファイバの集合体ケーブル、リボンケーブルおよびこれらの製造方法 |
| WO2022191097A1 (ja) | 2021-03-10 | 2022-09-15 | 古河電気工業株式会社 | 光ファイバ着色心線、光ファイバリボン、単心ファイバの集合体ケーブル、光ファイバリボンケーブル、およびこれらの製造方法 |
| JPWO2022191097A1 (ja) * | 2021-03-10 | 2022-09-15 | ||
| WO2022264873A1 (ja) * | 2021-06-14 | 2022-12-22 | 古河電気工業株式会社 | 光ファイバ着色心線、光ファイバリボン、光ファイバリボンケーブル、およびこれらの製造方法 |
| JP2023081056A (ja) * | 2021-11-30 | 2023-06-09 | 古河電気工業株式会社 | 光ファイバリボン及び光ファイバリボンの製造方法 |
| JP7640440B2 (ja) | 2021-11-30 | 2025-03-05 | 古河電気工業株式会社 | 光ファイバリボン及び光ファイバリボンの製造方法 |
| JP2023109095A (ja) * | 2022-01-26 | 2023-08-07 | 古河電気工業株式会社 | 光ファイバリボン及び光ファイバリボンの製造方法 |
| JP7704693B2 (ja) | 2022-01-26 | 2025-07-08 | 古河電気工業株式会社 | 光ファイバリボン及び光ファイバリボンの製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA3038632C (en) | 2021-05-18 |
| AU2017338241A1 (en) | 2019-04-18 |
| KR20190041007A (ko) | 2019-04-19 |
| JPWO2018062364A1 (ja) | 2019-03-28 |
| US20200026012A1 (en) | 2020-01-23 |
| EP3521883A4 (en) | 2020-05-13 |
| EP3521883A1 (en) | 2019-08-07 |
| CN109643000A (zh) | 2019-04-16 |
| JP6841836B2 (ja) | 2021-03-10 |
| US10838159B2 (en) | 2020-11-17 |
| CA3038632A1 (en) | 2018-04-05 |
| KR102325812B1 (ko) | 2021-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6841836B2 (ja) | 光ファイバ着色心線の製造方法および光ファイバケーブルの製造方法 | |
| JP6841837B2 (ja) | 光ファイバリボンの製造方法および光ファイバケーブルの製造方法 | |
| CN102057309B (zh) | 光纤缆线以及光纤带 | |
| JP6273847B2 (ja) | 光ファイバおよび光ケーブル | |
| TWI703358B (zh) | 光纖及光纖帶心線 | |
| US11415769B2 (en) | Intermittent connection-type optical fiber tape core wire, optical fiber cable, and method for manufacturing intermittent connection-type optical fiber tape core wire | |
| CN101848878A (zh) | 用于制造光纤的方法以及这样获得的光纤 | |
| JP2011232733A (ja) | 光ファイバテープ心線、光ファイバケーブル、及び光ファイバテープ心線の製造方法 | |
| JPH09113773A (ja) | 光ファイバテープ心線 | |
| JP2007293257A (ja) | 光ファイバコイルおよびその製造方法 | |
| JP2006113103A (ja) | 着色光ファイバ | |
| WO2022131099A1 (ja) | 光ファイバテープ心線 | |
| JP4172626B2 (ja) | 光ファイバテープ心線 | |
| JP3291177B2 (ja) | チューブ付き光ファイバ心線の端末部 | |
| JPH11311726A (ja) | 光ファイバテープ心線 | |
| JP2005221839A (ja) | 光ファイバ素線及び光ファイバテープ | |
| JPH03163505A (ja) | 光ファイバ心線 | |
| JP2005200267A (ja) | 光ファイバ素線 | |
| JPH11194242A (ja) | 光ファイバ心線 | |
| JP2014137439A (ja) | 単心光ファイバ心線のリボン化方法 | |
| JPH03131549A (ja) | 光ファイバ心線の処理方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENP | Entry into the national phase |
Ref document number: 2018542838 Country of ref document: JP Kind code of ref document: A |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17856313 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 3038632 Country of ref document: CA Ref document number: 20197008861 Country of ref document: KR Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2017338241 Country of ref document: AU Date of ref document: 20170928 Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 2017856313 Country of ref document: EP Effective date: 20190430 |