JP5200093B2 - Optical fiber tape core manufacturing method, manufacturing apparatus, and optical fiber tape core and optical fiber cable manufactured by the manufacturing method - Google Patents

Description

  The present invention relates to an optical fiber ribbon manufacturing method, a manufacturing apparatus, an optical fiber ribbon manufactured by the manufacturing method, and an optical fiber cable.

  In recent years, broadbandization has been promoted due to the rapid spread of the Internet and the increase in transmission and reception of large-capacity data, and optical fibers have come to be used as communication lines that meet these requirements. For example, in order to draw an optical fiber into a subscriber's house from an optical fiber cable installed on a utility pole, an optical fiber tape core having a plurality of optical fiber cores in a tape shape is used.

  The optical fiber ribbon is formed by arranging a plurality of optical fibers in a row, and covering and integrating the entire optical fibers with a taped resin. With this type of optical fiber cable, in order to draw the optical fiber core into the customer's house, a part of the sheath of the optical fiber cable is cut out, the optical fiber tape core is taken out, and the intermediate portion of the optical fiber tape core is removed. It is necessary to separate a predetermined optical fiber core wire among a plurality of optical fibers. For this reason, optical fiber tape cores can be easily separated from multi-core (many) optical fiber cores, and optical fiber tape cores are stored in cables when manufacturing optical fiber cables. When doing so, it is required that the single core is difficult to separate.

  In order to satisfy the above requirements, a taped resin that is coated and cured over the entire optical fiber core is intermittently formed in the longitudinal direction of the tape core with a slit that penetrates between the optical fiber cores in the thickness direction as a dividing groove. (For example, it describes in patent document 1). In order to form the dividing groove, by rotating a disc-shaped cutting roller having a cutting blade provided at a predetermined interval on the outer peripheral edge, and running the optical fiber ribbon in the longitudinal direction of the tape. A cutting groove is formed by cutting the taped resin between the optical fiber core wires with the cutting blade.

Japanese Patent No. 4055000 (FIG. 3, FIG. 8, etc.)

  However, in the optical fiber ribbon described in Patent Document 1, since the optical fibers arranged in a row are arranged in contact with each other, the optical fiber core may be damaged by the cutting blade of the cutting roller. There is. Further, in the optical fiber ribbon described in Patent Document 1, since the optical fibers are in contact with each other, when the optical fiber ribbon is torn from the dividing groove, the colored layer of the optical fiber and the tape are formed. Although the resin interface is peeled off, the peeling of the interface occurs with a weak force, so that there is a possibility that single core separation occurs when it is not intended (for example, at the time of manufacturing a tape core or a cable).

  Accordingly, the present invention provides an optical fiber ribbon manufacturing method, a manufacturing apparatus, which can easily separate a single core at the time of drawing in a fiber and does not inadvertently separate a single core when manufacturing a tape core or storing it in a cable. It is another object of the present invention to provide an optical fiber ribbon and an optical fiber cable manufactured by the manufacturing method.

According to the first aspect of the present invention, a plurality of optical fiber cores are arranged in a line with a predetermined gap, and the entire circumference of each optical fiber core is coated with resin or adjacent optical fiber cores. More than half of the circumference of the optical fiber cores of the opposite portions between the wires are coated with resin, and the opposite optical fiber core wires are provided intermittently in the longitudinal direction of the tape core wire Inter-core connection that connects the inter-core separation part and the optical fiber cores with a predetermined gap between them, which are formed as a gap between the opposed optical fiber cores by being connected by the inter-core connection part. And an arrangement step of arranging the plurality of optical fiber cores in a row with a predetermined gap therebetween, and the arrangement step. Later including between each optical fiber core Resin is applied so as to cover the entire circumference of each optical fiber core or to cover a region of the optical fiber core more than half the circumference of the opposite portion between adjacent optical fiber cores. The relationship between the coating step and the thickness Wb of the resin removing member with respect to the separation distance Hd between adjacent optical fiber cores after the coating step is Hd> Wb, and the adjacent optical fiber cores are in a state before the resin is cured. By inserting a resin removing member between the wires to remove the uncured resin, and forming intermittently the inter-core wire separation part serving as the gap in the longitudinal direction of the tape core wire, the core wires are separated between the inter-wire separation parts. An intermittent forming step of forming an inter-connecting portion; an uncured resin is cured after the intermittent forming step; an optical fiber inter-fiber separation distance Hr of the inter-core connecting portion after the uncured resin is cured; and the core wire Optical fiber core Relationship with twice the value 2h taped resin thickness h in the width direction X, is characterized in that a curing step to Hr> 2h and Hr ≦ 100 [mu] m.
The invention according to claim 2 is characterized in that the length of the separation portion between the core wires is within ± 20% of the length of the separation portion between the core wires.

According to a third aspect of the present invention, a plurality of optical fiber cores are arranged in a line with a predetermined gap, and the entire periphery of each optical fiber core is covered with a resin or adjacent optical fiber cores. More than half of the circumference of the optical fiber cores of the opposite portions between the wires are coated with resin, and the opposite optical fiber core wires are provided intermittently in the longitudinal direction of the tape core wire Inter-core connection that connects the inter-core separation part and the optical fiber cores with a predetermined gap between them, which are formed as a gap between the opposed optical fiber cores by being connected by the inter-core connection part. And a plurality of optical fiber cores of a plurality of optical fiber cores arranged in a row at a predetermined interval All of the optical fiber cores including Adjacent optical fiber cores of the resin coated so as to cover an enclosure or to cover a region of more than half the circumference of the optical fiber core wire at a portion opposite to each other between adjacent optical fiber core wires Inserting a resin removing member into the resin between the wires and removing the uncured resin before the resin is cured, and a curing means for curing the applied uncured resin, The thickness Wb of the resin removing member with respect to the separation distance Hd between the adjacent optical fiber cores is set as Hd> Wb, and the separation distance Hr between the optical fiber core wires of the inter-core connection portion after the uncured resin is cured, The relationship between the value 2h, which is twice the taped resin thickness h in the optical fiber core width direction X, of the inter-core separation part is Hr> 2h and Hr ≦ 100 μm .

The invention of claim 4 is characterized in that an optical fiber ribbon produced by the production method according to claim 1 or 2, wherein the optical fiber ribbon.

The invention described in claim 5 is an optical fiber cable in which the optical fiber ribbon manufactured by the method for manufacturing an optical fiber ribbon according to claim 1 or 2 is mounted.

  According to the optical fiber ribbon manufacturing apparatus of the present invention, after arranging a plurality of optical fiber cores in a row with a predetermined gap, all of the optical fiber cores including between the optical fiber cores are arranged. A resin is applied so as to cover the periphery or to cover a region of the circumference of the optical fiber core at a position opposite to each other between adjacent optical fiber cores, and then the resin is cured. In the state before the insertion, a resin removing member having a predetermined dimensional relationship is inserted between adjacent optical fiber cores to remove uncured resin and intermittently separate the inter-core separating part as a gap in the longitudinal direction of the tape core. When formed, an inter-core connecting portion is formed between the inter-core separating portions in the longitudinal direction of the tape core. After that, when the uncured resin is cured, the optical fiber cores facing each other are connected by an inter-fiber core connecting portion provided intermittently in the longitudinal direction of the tape core, and a gap is formed between the optical fiber cores facing each other. An optical fiber tape core wire is obtained in which the inter-core wire separation portions and the inter-core wire connection portions that connect the optical fiber core wires with a predetermined gap are alternately formed in the longitudinal direction of the tape core wire.

  According to the optical fiber ribbon manufactured in this way, when tearing from the inter-fiber separation part at the time of single-fiber separation, first, a force to tear the inter-fiber connection is required, and then the optical fiber core is colored. The interface of the resin covering the entire circumference of each optical fiber core to be the layer and the taped resin or the resin covering the area of more than half the circumference of the optical fiber cores facing each other between the optical fiber cores is peeled off Since a tearing force is required, single-core separation can be easily performed when the fiber is drawn, and single-core separation is not inadvertently separated when manufacturing the optical fiber cable.

1A and 1B show an optical fiber ribbon of a first embodiment manufactured by the manufacturing method of the present invention, in which FIG. 1A is an enlarged perspective view of a main part thereof, and FIG. FIG. 2 shows a portion including the inter-core-wire connecting portion and the inter-core-wire separation portion of the optical fiber ribbon of FIG. 1, (A) is an enlarged vertical sectional view of the main part, and (B) is a portion of (A). It is a cross-sectional view in the BB line. FIG. 3 is a characteristic diagram showing the results of measuring the tearing force when the optical fiber ribbon of FIG. FIG. 4 shows a comparative example of the present invention in which the optical fiber core wire of the inter-core separation portion is not coated with the taped resin and the optical fiber core wires of the inter-core connection portion are coated with the tape resin. The site | part containing the connection part between core wires and the isolation | separation part between core wires is shown among the optical fiber tapes which are these, (A) is the principal part expanded longitudinal sectional view, (B) is CC line of (A) FIG. FIG. 5 is a characteristic diagram showing the results of measuring the tearing force when the optical fiber ribbon of FIG. FIG. 6 is a schematic configuration diagram of a manufacturing apparatus for manufacturing the optical fiber ribbon shown in FIG. FIG. 7 is a perspective view of an array resin coating apparatus in the manufacturing apparatus of FIG. 8 shows a cross section of each part of FIG. 7, (A) is a cross-sectional view taken along the line DD of FIG. 7, (B) is a cross-sectional view taken along the line EE of FIG. 7, and (C) is a cross-sectional view taken along the line F of FIG. FIG. FIG. 9 shows a method of inserting a resin removing member between adjacent optical fiber cores in a state before the resin is cured in the manufacturing process of the method of the present invention, and removing the uncured resin to form a gap between the core wires as a gap. It is a figure which shows the process of forming intermittently in a core wire longitudinal direction. FIG. 10 is a cross-sectional view showing an example of an optical fiber cable mounted with an optical fiber ribbon manufactured by the method of the present invention. FIG. 11 shows the optical fiber ribbon of the second embodiment manufactured by the manufacturing method of the present invention, (A) is an enlarged perspective view of the main part, and (B) is a cross-section along the GG line of (A). FIG. FIG. 12 shows the optical fiber ribbon of the third embodiment manufactured by the manufacturing method of the present invention, (A) is an enlarged perspective view of the main part thereof, and (B) is a crossing along the line H-H of (A). FIG. FIG. 13 is a cross-sectional view of each part of the array resin coating apparatus used for manufacturing the optical fiber cable of the third embodiment, and (A) is a cross-sectional view of the part corresponding to the line DD in FIG. (B) is sectional drawing of the site | part corresponding to the EE line | wire of FIG. 7, (C) is sectional drawing of the site | part corresponding to the FF line | wire of FIG. FIG. 14 shows the optical fiber ribbon of the fourth embodiment manufactured by the manufacturing method of the present invention, (A) is an enlarged perspective view of the main part, and (B) is a longitudinal section taken along line II of (A). FIG.

Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.
[First Embodiment]
"Structure explanation of optical fiber ribbon"
First, an optical fiber ribbon manufactured by a manufacturing method to which the present invention is applied will be described. 1A and 1B show an optical fiber ribbon of a first embodiment manufactured by the manufacturing method of the present invention, in which FIG. 1A is an enlarged perspective view of a main part thereof, and FIG. FIG. In FIG. 1, the arrow X indicates the width direction of the optical fiber ribbon, the arrow Y indicates the longitudinal direction of the optical fiber ribbon, and the arrow Z indicates the thickness direction of the optical fiber ribbon.

  In the optical fiber ribbon 1 of the present embodiment, a plurality of optical fibers 2 (2A to 2D) are arranged with a predetermined gap S in a row, and the opposite optical fibers 2 are tapes. The inter-core separation part 4 and the optical fiber tape core formed as a gap between the optical fiber cores 2 facing each other by being connected by the inter-core connection part 3 provided intermittently in the longitudinal direction of the core. It is set as the structure which formed alternately the connection part 3 between the core wires which connect the wires 2 with the said predetermined clearance S spaced apart in the tape core wire longitudinal direction. In the present embodiment, an optical fiber ribbon having a four-fiber ribbon structure in which four optical fibers 2A to 2D are arranged in a line is used. Of course, the present invention can also be applied to an optical fiber ribbon having a multi-fiber ribbon structure using five or more optical fibers 2.

  The optical fiber core 2 includes a quartz glass fiber 5 provided in the center, a jacket layer 6 formed by coating the periphery of the silica glass fiber 5 with an ultraviolet curable resin, and the optical fiber cores 2A to 2A. It consists of the colored layer 7 for distinguishing 2D. The optical fiber core 2 has an outer diameter of the quartz glass fiber 5 of 0.125 mm and an overall outer diameter of 0.25 mm according to the standard. The colored layer 7 functions as an outermost coating layer provided on the outermost side of the optical fiber core 2.

  The optical fiber core 2 is covered with a taped resin 8 in order to handle the plurality of optical fiber cores 2A to 2D as one tape. Specifically, in each of the optical fiber cores 2A to 2D, the entire colored layer 7 that is the outermost coating layer is covered with the taped resin 8 over the longitudinal direction of the tape core wire.

  The optical fiber cores 2A to 2D arranged in a row with a predetermined gap S are connected by an inter-core connection part 3 that intermittently connects adjacent optical fiber cores 2 in the longitudinal direction of the tape core. ing. The inter-core-wire connecting portion 3 is made of a taped resin 8 that tapes a plurality of optical fiber cores 2A to 2D, and between the adjacent optical fiber cores 2A and 2B, between 2B and 2C, and between 2C and 2D. Each optical fiber core wire 2 </ b> A to 2 </ b> D is provided to be connected to each gap S.

  In the thickness direction Z of the optical fiber ribbon 1, the inter-core wire connecting part 3 is a thickness of the taped resin 8 that covers the entire circumference of the optical fibers 2 </ b> A to 2 </ b> D to the diameter of the optical fibers 2 </ b> A to 2 </ b> D. It is the thickness which added the dimension of 2 times. Further, the inter-core-wire connecting portion 3 is careless in the longitudinal direction Y of the optical fiber core 1 when the optical fiber ribbon is manufactured or when the optical fiber ribbon is stored in the slot core or the cable storage portion. The length is such that the single core is not separated and the single fiber can be easily separated when the optical fiber is pulled into the optical fiber subscriber's home.

  The inter-core-wire connecting portion 3 is intermittently provided in the longitudinal direction of the tape core and the adjacent optical fibers 2A to 2D are connected to each other, thereby forming a gap between the optical fiber cores 2 facing each other. The inter-core-wire separation part 4 is formed. The inter-core-wire connecting portions 3 and the inter-core-wire separating portions 4 are formed alternately and continuously in the longitudinal direction of the tape core wire, and have a so-called perforation.

  Further, the inter-core-wire connecting portions 3 are not all provided on the same straight line in the width direction X of the optical fiber tape core 1, but are provided in a staggered pattern when viewed from the whole. For example, on the AA line in FIG. 1A, the inter-core connecting portion 3 and the right-end optical fiber core are provided between the leftmost optical fiber core 2A and the adjacent optical fiber core 2B. Between the optical fiber core wire 2C adjacent to the wire 2D and the optical fiber core wire 2C adjacent thereto, an inter-core wire connecting portion 3 is formed on the same straight line. An inter-core separation part 4 is formed instead of the inter-connection part 3. On the A1-A1 line on the rear side, between the leftmost optical fiber core 2A and the adjacent optical fiber core 2B as viewed in the figure, there is an intercore separation part 4, the right end optical fiber 2D and the optical fiber core 2D. Between the adjacent optical fiber cores 2C, the inter-core separation part 4 is formed on the same straight line, while between the adjacent optical fiber cores 2B and 2C at the center, The connecting part 3 between cords is formed. Thereby, the connection part 3 between core wires becomes a staggered pattern when the optical fiber tape core wire 1 is seen from the whole.

  The tearing force when the optical fiber tape core wire 1 configured as described above was actually separated from the single core was obtained. When the optical fiber core wire 2 is torn apart at a constant speed by applying the force F in the direction of separating the optical fiber core wires 2 from each other while holding both sides of the inter-core wire separation portion 4, for example, As shown by a dotted line, a crack occurs in the inter-core-wire connecting portion 3 that connects the adjacent optical fiber core wires 2B. The strongest tearing force is required when the inter-core connecting portion 3 is cracked first. When the inter-core-wire connecting portion 3 is cracked, the inter-core-wire connecting portion 3 is broken. Then, the breakage of the inter-core connecting portion 3 proceeds to the interface between the colored layer 7 and the taped resin 8 of the optical fiber core 2B. During this period (the region L1 in FIG. 2A and the time T1 in FIG. 3), the tearing force becomes the highest. FIG. 3 is a graph showing the tearing force when tearing at a constant speed. The time when the region L1 in FIG. 2A has been torn is displayed as T1 in FIG. Is displayed in FIG. 3 as T2.

  When the crack that has entered the inter-core connecting portion 3 reaches the interface between the colored layer 7 of the optical fiber core 2B and the taped resin 8, the crack progresses in the taped resin 8 in the longitudinal direction of the tape core, and finally the core It reaches the other end which is the tearing end portion opposite to the one end which is the tearing start portion of the line connecting portion 3 and peels off. During this time (the region L2 in FIG. 2A and the time T1 to the time T2 in FIG. 3), the tearing force is smaller than the tearing force in the region L1 of the inter-core-wire connecting portion 3 and constant. It becomes the size. In the region L2 of the inter-core-wire connecting portion 3, the interface between the colored layer 7 and the taped resin 8 is designed to be easily separable when the optical fiber tape core 1 is separated into a single core. The bonding strength between the layer 7 and the taped resin 8 is determined.

  On the other hand, as shown in FIG. 4, the adjacent optical fiber cores 2A and 2B are in contact with each other (there is no gap), and only a part of the optical fiber core cables 2A and 2B is covered with the taped resin 8. The tearing force when the optical fiber ribbon coated with a single core is separated is a large force at the start of tearing (as shown in FIG. 3) because there is no inter-core connecting part 3 as in the previous optical fiber ribbon. As shown in FIG. 5 in the region L3 coated with the taped resin 8 (maximum tearing force generated as a peak until time T1) does not act, and is substantially constant (up to time T3 during this time). It becomes tearing power. FIG. 5 is a graph showing the tearing force when tearing at a constant speed, and the time when the region L3 in FIG. 4 has been torn is indicated as T3 in FIG. In the example of FIG. 4, the breakage proceeds from the interface between the colored layer 7 and the taped resin 8 from the beginning of the tear, and the breakage proceeds along the interface to the end of the entire region L3 of the taped resin 8 to be peeled off. Therefore, it is separated with a smaller force than the structure shown in FIG. As described above, the optical fiber ribbon shown in FIG. 4 can be easily separated in the case of single fiber separation, but it can be accommodated in the slot groove formed in the slot core during the production of the optical fiber ribbon. Sometimes single core separation.

"Structure explanation of manufacturing equipment for manufacturing optical fiber ribbon"
Next, the manufacturing apparatus used with the manufacturing method of the optical fiber ribbon is demonstrated. 6 is a schematic configuration diagram showing the entire manufacturing apparatus, FIG. 7 is a perspective view of an array resin coating apparatus in the manufacturing apparatus of FIG. 6, FIG. 8 is a cross-sectional view of each part of FIG. 7, and FIG. FIG. 9B is a sectional view taken along line E-E in FIG. 7; FIG. 9C is a sectional view taken along line F-F in FIG. 7; and FIG. It is a figure which shows the process of inserting the resin removal member between fiber core wires, removing uncured resin, and forming the inter-core wire separation part which becomes a gap | interval intermittently in a tape core wire longitudinal direction.

  As shown in FIG. 6, the manufacturing apparatus for the optical fiber ribbon has a delivery drum 10 which is a delivery means for delivering a plurality of optical fiber cores 2 (2A to 2D) and an optical fiber core wire 2 at a predetermined pitch. A straightening section 11 which is an arrangement means for arranging the optical fiber core wires 2 in a line with a gap between them, a resin supply section 12 for supplying the taped resin 8, and the taped resin 8 to the optical fiber core wire 2. Between the resin coating portion 13 to be coated to a predetermined thickness and the optical fiber core wire 2 adjacent to each other before the taped resin 8 is cured, a resin removing member is inserted to remove the uncured resin, thereby forming a gap. The inter-fiber separation part forming device 9 for intermittently forming the inter-wire separation part 4 in the longitudinal direction of the tape core, the ultraviolet lamp 14 for curing the taped resin 8, and the optical fiber tape core formed by curing. With take-up drum 15 for winding 1 To have. The straightening section 11, the resin supply section 12, and the resin coating section 13 are integrated to form an array resin coating apparatus 17 as one apparatus.

  In the manufacturing apparatus, when the delivery drum 10 disposed on the rightmost side in FIG. 6 is the fiber delivery side of the optical fiber core wire 2 and the winding drum 15 disposed on the leftmost side is the fiber winding side. In addition, the optical fiber core 2 travels in the direction indicated by the arrow Y from the fiber delivery side to the fiber winding side. The direction of the arrow Y is the fiber traveling direction, and the device component (winding drum 15) disposed on the fiber winding side is forward of the device component (for example, the feeding drum 10) disposed on the fiber feeding side. Is defined as a device component. In the traveling path of the optical fiber core 2, the guide roller 16, the array resin coating device 17, and the core wire are sequentially arranged from the fiber delivery side to the fiber take-up side between the delivery drum 10 and the take-up drum 15. A space separating unit 9, an ultraviolet lamp 14, a concentrating roller 32, and a dancer 34 are arranged.

  As shown in FIG. 6, the delivery drum 10 has the optical fiber core wire 2 (2A to 2D) wound around the drum peripheral surface. The delivery drum 10 is arranged according to the number of optical fiber cores 2. In this embodiment, since four optical fiber core wires 2 are arranged in a row, an optical fiber tape core wire is manufactured, so that four delivery drums 10 are arranged.

  As shown in FIG. 6, a plurality of guide rollers 16 that guide the traveling of the optical fiber core 2 are disposed in front of the delivery drum 10. As shown in FIG. 6, an array resin coating device 17 is disposed in front of the guide roller 16. The array resin coating device 17 is composed of a straightening section 11, a resin supply section 12, and a resin coating section 13 which will be described later, and these are integrated into one apparatus. FIG. 7 shows the overall configuration of the array resin coating device 17.

  As shown in FIG. 7, the array resin coating device 17 is arranged in order from the right fiber delivery side to the left fiber take-up side, in order of the wire-straightening section 11, the resin supply section 12, and the resin coating section 13. It is arranged in the inside. The straightening section 11 is provided at a right side portion (a portion indicated by a DD line) of the housing 18 toward FIG. The resin supply part 12 is provided in the center part (part shown by the EE line) of a housing | casing. The resin coating part 13 is provided in the left side part (part shown by the FF line) of the housing | casing 18 toward FIG.

  As shown in FIG. 7 and FIG. 8 (A), the wire-straightening section 11 forms a gap between the optical fiber core wires 2 at a predetermined pitch and arranges the four optical fiber strands 2A to 2D in a line. To function. The straightening portion 11 has four through holes 19 for running the optical fiber core wires 2A to 2D along the longitudinal direction in the central portion of the casing 18 in the thickness direction. These through holes 19 have a predetermined pitch so that when the four optical fiber cores 2A to 2D are inserted, a gap is formed between the optical fiber cores 2A to 2D for allowing the taped resin 8 to go around. Is provided. For example, when the outer diameters of the optical fiber cores 2A to 2D are 0.25 mm in diameter, the pitch between the optical fiber cores is 360 μm.

  As shown in FIGS. 7 and 8B, the resin supply unit 12 is provided at a position in front of the straightening unit 11. As shown in FIG. 6, the resin supply unit 12 applies and supplies resin to a gap between the optical fiber 2 and the resin tank 27 filled with the resin for forming the tape-formed resin 8. It comprises a resin supply nozzle 28 and a resin pressure adjusting means 29 for adjusting the resin pressure supplied to the gap.

  The resin tank 27 is filled with a resin for forming the taped resin 8. The resin supply nozzle 28 is connected to a resin supply hole 24 formed vertically from the top surface 18a of the casing 18 toward a cavity 20 formed as a resin filling space inside the casing 18. . The resin pressure adjusting means 29 adjusts the resin pressure for supplying the resin in the resin tank 27 from the resin supply nozzle 28 toward the cavity 20. The cavity 20 has a rectangular cross-sectional shape so that the entire periphery of each of the optical fiber core wires 2 </ b> A to 2 </ b> B is covered with the taped resin 8.

  In the resin coating part 13, the inter-core separation part 4 is formed by removing the pre-curing taped resin 8 filled between the adjacent optical fiber cores 2 </ b> A to 2 </ b> D by the inter-core separation part forming device 9 in the subsequent process. The optical fiber cores 2A to 2D are arranged with an interval that allows the resin removing member to enter the gaps between the optical fiber cores 2A to 2D. Moreover, in this resin coating | coated part 13, the cross-sectional shape of the opening part 30 is determined so that the thickness of the taped resin 8 apply | coated to the perimeter of optical fiber core wire 2A-2D may become desired thickness.

  The inter-core-wire separation part forming device 9 is provided in the vicinity of the outlet of the resin coating part 13 and in front of the ultraviolet lamp 14. In the inter-core-wire separating part forming device 9, the pre-curing filled between the adjacent optical fiber cores 2A and 2B coming out from the outlet of the resin coating part 13 and between 2B and 2C and 2C and 2D, respectively. The interfiber separation part 4 is formed by piercing the resin removing member 31 into the taped resin 8 and removing the taped resin 8.

  The resin removing member 31 has a plate shape having a predetermined thickness Wb and a predetermined length in order to form the inter-core separation part 4 having the gap S between the adjacent optical fiber cores 2A to 2D shown in FIG. It consists of a shutter member. The resin removing member 31 is moved up and down by a drive mechanism (not shown) so as to penetrate the thickness direction of the taped resin 8, and the taped resin filled in the gaps between the optical fiber cores 2A to 2D. 8 is removed to form the inter-core wire separation part 4. Between the optical fiber cores 2A to 2D, the resin removing member 31 can be inserted, and the colored layer 7 is not damaged and is covered with the taped resin 8 so that the colored layer 7 is not exposed. A large gap Hd (see FIG. 9) is required. The gap Hd is a separation distance between adjacent optical fiber cores immediately after resin application and before resin curing, and the relationship with the thickness Wb of the resin removal member 31 is Hd> Wb.

  Of the three resin removing members 31, the resin removing members 31 on both sides move up and down in synchronization. On the other hand, the resin removing member 31 at the center moves up and down with the timing of moving up and down with respect to the resin removing members 31 on both sides. As a result, the inter-core separation portions 4 are formed in a staggered pattern in the width direction of the optical fiber ribbon 1.

  In this embodiment, the separation member 4 between the cords is formed by moving the shutter member up and down to pierce the taped resin 8 before curing and removing the taped resin 8. It is also possible to form the notch between the cords by forming a notch in the portion and rotating the disk to remove the taped resin 8 at the protrusion between the notches (corresponding to the shutter member). By changing the timing of the vertical movement of the shutter member, the diameter of the rotating disk, and the notch shape, the shape and the formation position of the inter-core separation part 4 other than the optical fiber ribbon 1 shown in FIG. It can be changed arbitrarily.

  As shown in FIG. 6, the ultraviolet lamp 14 is provided in front of the inter-core-wire separation part forming device 9. In the present embodiment, two ultraviolet lamps 14 are continuously arranged in series. The ultraviolet lamp 14 is configured such that the intensity of illuminance can be adjusted to cure the taped resin 8 applied according to the traveling speed of the optical fiber core 2.

  Moreover, in the manufacturing apparatus of this embodiment, as shown in FIG. 6, the concentrating roller 32 which is a concentrating means for gathering the pitch between the optical fiber core wires 2 which spreads by putting in and out the resin removing member 31 is provided. It has been. The concentrating roller 32 is disposed in front of the ultraviolet lamp 14 and is provided on the upper side and the lower side of the optical fiber core wire 2, respectively. The optical fiber cores 2 are guided together by guide grooves formed on the two concentrating rollers 32 to be gathered to have a desired arrangement pitch.

  Moreover, in the manufacturing apparatus of this embodiment, as shown in FIG. 6, the dancer 34 for adjusting the winding tension | tensile_strength of the optical fiber core wire 2 is provided. The dancer 34 is composed of a plurality of rollers 35 and applies tension to the traveling optical fiber 2.

  The winding drum 15 finally winds the optical fiber tape core wire 1 formed by curing.

[Description of manufacturing method of optical fiber ribbon]
Next, the manufacturing method of the optical fiber ribbon of this embodiment is demonstrated. The manufacturing method according to the present embodiment includes an arranging step of arranging a plurality of optical fiber cores 2 sent out from the delivery side in a row with a predetermined gap, and a space between the optical fiber cores 2 arranged in a row. A resin application step of applying the taped resin 8 so as to cover the entire periphery of the optical fiber core 2 and a resin removing member between the adjacent optical fiber cores 2 before the taped resin 8 is cured. It includes an intermittent forming step of inserting and removing uncured resin to intermittently form a separation portion between the cords in the longitudinal direction of the tape cord, and a curing step of curing the taped resin 8.

  Below, each process is demonstrated concretely in order of the process which manufactures the optical fiber tape core wire 1. FIG. First, in the arranging step, the optical fiber core wires 2 (2A to 2D) are sent out from the delivery drum 10. The fed optical fiber core 2 is guided by the guide roller 16 and sent to the array resin coating device 17 provided in front of the delivery drum 10. The optical fiber core wires 2 </ b> A to 2 </ b> D sent to the array resin coating device 17 are first arrayed in a line with a predetermined gap in the straightening section 11. The optical fiber cores 2A to 2D are respectively inserted into the through holes 19 formed in the wire-shaping part 11, so that they are arranged with a predetermined gap between the adjacent optical fiber cores 2A to 2D. Will be.

  Then, the optical fiber core wires 2A to 2D arranged in a line are sent to a resin supply unit 12 provided in front of the wire-shaping unit 11, where a resin coating process is performed. In the resin coating process, the taped resin 8 having a predetermined viscosity is filled from the resin tank 27 into the cavity 20 through the resin supply hole 24 from the resin supply nozzle 28. For example, an ultraviolet curable resin is used for the taped resin 8. The resin pressure for supplying the taped resin 8 is appropriately adjusted by a resin pressure adjusting means 29 connected to the resin tank 27.

  When the taped resin 8 is filled in the cavity 20, not only the taped resin 8 enters the gap between the adjacent optical fiber cores 2A to 2D, but the entire circumference of the optical fiber cores 2A to 2D. The inside of the cavity 20 is filled with the taped resin 8 so as to cover the surface. The taped resin 8 applied so as to cover the entire periphery of the optical fiber cores 2 </ b> A to 2 </ b> B is excessive due to the cross-sectional shape of the opening 30 of the resin coating 13 provided in front of the cavity 20. The resin is shaved.

  Next, an intermittent forming process is performed on the optical fiber core wires 2 </ b> A to 2 </ b> D exiting from the outlet of the resin coating portion 13. In the inter-core separation part forming device 9, the resin removing member 31 is moved up and down between adjacent optical fiber cores 2 </ b> A to 2 </ b> D in a state before the resin is cured, and then pulled up, so that the tape of the part The cored wire separation part 4 is formed by removing the resin 8 and forming a gap. Then, by repeating the operation in which the resin removing member 31 is continuously inserted into and removed from the taped resin 8 in accordance with the linear velocity of the optical fiber cores 2A to 2D, the inter-core separation part 4 and the inter-fiber connection part 3 are alternately formed in the longitudinal direction of the tape core wire.

  Next, a curing step is performed in which the taped resin 8 covered with the optical fiber cores 2A to 2D is irradiated with ultraviolet rays to be cured. In the curing step, ultraviolet rays are irradiated by the ultraviolet lamp 14 disposed in front of the array resin coating device 17. When the taped resin 8 is irradiated with ultraviolet rays, the taped resin 8 that has received the ultraviolet rays is cured. Each optical fiber core wire 2 is narrowed to a predetermined pitch by the concentrating roller 32 provided in front of the ultraviolet lamp 14 to narrow the pitch spread by inserting and removing the resin removing member 31.

  The optical fiber ribbon 1 obtained by curing the taped resin 8 is wound around the winding drum 15 with the winding tension adjusted by the dancer 34. By being wound around the winding drum 15, the manufacturing process for manufacturing the optical fiber ribbon 1 is completed.

  In the manufacturing method of the optical fiber ribbon of the present embodiment, a plurality of optical fiber cores 2A to 2D are arranged in a row with a predetermined gap, and then each of the optical fiber ribbons 2A to 2D including each of the optical fiber cores 2A to 2D. The taped resin 8 is applied so as to cover the entire circumference of the optical fiber cores 2A to 2D, and then the resin is removed between the adjacent optical fiber cores 2A to 2D before the taped resin 8 is cured. When the member 31 is inserted and the uncured resin is removed to form the inter-core separation part 4 intermittently in the longitudinal direction of the tape core, the core between the inter-core separation parts 4 in the longitudinal direction of the tape. A line connecting portion 3 is formed. Thereafter, when the uncured resin is cured, the optical fiber cores 2A to 2D facing each other are connected by the inter-core connection part 3 provided intermittently in the longitudinal direction of the tape core, and the optical fiber cores facing each other. 2 A to 2 D are formed as gaps between the inter-core wire separation portions 4 and the optical fiber core wires 2 A to 2 D are alternately connected in the longitudinal direction of the tape core wire. The formed optical fiber ribbon 1 is obtained.

  According to the optical fiber ribbon 1 manufactured as described above, when tearing from the inter-fiber separation part 4 at the time of single-fiber separation, first, a force for tearing the inter-core connection part 3 is required, and then the optical fiber core. Since a tearing force is required to peel off the interface between the taped resin 8 covering the entire circumference of each of the optical fiber core wires 2A to 2D to be the colored layer 7 of the wires 2A to 2D and the taped resin 8, the fiber to the home Single-core separation can be easily performed at the time of drawing, and single-core separation is not inadvertently performed at the time of manufacturing an optical fiber cable.

[About optical fiber cable]
An optical fiber cable can be obtained by housing the optical fiber ribbon 1 manufactured as described above in a slot core. For example, as shown in FIG. 10 (A), in a plurality of slot grooves 38 formed in a U-shaped cross section around the outer periphery of a slot core 37 having a strength member 36 at the center in the longitudinal direction of the tape core. A plurality of the optical fiber ribbons 1 are stacked and stored, and then the outer surface of the slot core 37 is covered with the press-wound tape 39 so as to cover the opening of the slot groove 38, and is an outer cover by extrusion molding. By forming the sheath 40, an optical fiber cable 41 is obtained.

  In this optical fiber cable 41, when the optical fiber tape core wire 1 is stored in the slot groove 38, it can be stored without causing a single core separation. It can be stored neatly aligned. Further, when drawing the optical fiber core 2 into the subscriber's home, the work of tearing the sheath 40 and taking out the optical fiber tape core 1 from the slot groove 38 becomes easy. If the optical fiber cores 2 are separated from each other in the slot groove 38, it becomes difficult to take out the desired optical fiber tape core 1 due to entanglement. However, the present invention eliminates such a problem. be able to. Further, in the optical fiber cable 41 of the present invention, since the single optical fiber can be easily separated at the time of intermediate separation of the optical fiber tape core wire 1 taken out, the workability of the operator can be improved.

  The optical fiber ribbon 1 housed in the slot groove 38 may be a wide optical fiber ribbon 1 having a multi-fiber ribbon structure exceeding 4 cores as shown in FIG. 10B. . In order to store the optical fiber ribbon 1 in the slot groove 38, it is stored in a folded state. Further, the structure of the optical fiber cable is such that a press-wound tape 45 is interposed so as to cover the opening of the slot groove 44 of the slot core 43 having a C-shaped cross section having a strength member 42 as shown in FIG. A C slot type optical fiber cable 47 in which the entire slot core is covered with a sheath 46 may be used. In addition, as shown in FIG. 10D, the structure of the optical fiber cable includes a cable main body 53 having a tensile strength body 51 and a tear string 52 via a neck portion 50 on a support wire portion 49 having a support wire 48. An integrated slotless optical fiber cable 54 may be used. 10 (C) and 10 (D), a plurality of the optical fiber ribbons of the present invention may be stacked and stored as in FIG. 10 (A).

[Example 1]
Below, rewinding evaluation was implemented with respect to the optical fiber tape core wire obtained by manufacturing with two kinds of manufacturing methods. The first manufacturing method employs the manufacturing method of the present invention in which the four optical fiber cores 2A to 2D are arranged in a line at a pitch of 360 μm and the optical fiber core wires 2A to 2D are run in parallel with a gap between them. did. In the second manufacturing method, after coating the taped resin in a state where the optical fiber cores 2A to 2D are in contact with each other, the resin removing member 31 is inserted and removed between the adjacent optical fiber cores 2A to 2D. A space separation part 4 was formed.

  The tape manufacturing conditions common to the first and second manufacturing methods are as follows. The linear velocity of traveling between the delivery drum 10 and the take-up drum 15 is 600 m / min, and the lengths in the longitudinal direction of the tape core wire of the inter-core wire separation portion 4 and the inter-core wire connection portion 3 are 200 mm and 100 mm, respectively. One pitch in the longitudinal direction of the tape core wire of the inter-core wire connecting portion 3 is 300 mm, and the thickness width Wb of the resin removing member 31 is 80 μm.

  In the rewinding evaluation, it is evaluated whether or not the optical fiber core wire 2 is separated or disconnected when the manufactured optical fiber tape core wire is wound around another drum. In the optical fiber ribbon manufactured by the second manufacturing method, single-fiber separation and disconnection were observed in the optical fiber 2. This is presumably because the optical fiber core wire 2 was broken due to cracks in the fiber due to the resin removing member 31 occurring at several locations in the longitudinal direction of the tape core wire. Single-fiber separation is considered to be because unintended tearing occurred during rewinding because the tearing force at the connecting portion between the core wires was small. On the other hand, in the second manufacturing method, disconnection of the optical fiber core wire 2 did not occur.

[Second Embodiment]
FIG. 11 shows the optical fiber ribbon of the second embodiment manufactured by the manufacturing method of the present invention, (A) is an enlarged perspective view of the main part, and (B) is a GG line of (A). It is a cross-sectional view. In the optical fiber ribbon 1 of the second embodiment, the thickness of the inter-cord wire connecting portion 3 is thinner than that of the optical fiber ribbon in FIG. In order to manufacture the optical fiber ribbon 1 having this shape, it can be easily manufactured by changing the shape of the opening 30 of the resin coating 13 shown in FIG.

  In the optical fiber ribbon 1 of the second embodiment, similar to the optical fiber ribbon of FIG. 1 described above, when tearing from the inter-fiber separator 4 during single-fiber separation, first, the inter-fiber connection 3 is connected. A tearing force is required, and then the tearing force to peel off the interface of the taped resin 8 covering the entire periphery of each of the optical fiber cores 2A to 2D to be the taped resin 8 and the colored layer 7 of the optical fiber cores 2A to 2D Therefore, single fiber separation can be easily performed when the fiber is drawn, and single fiber separation is not inadvertently separated when mounted on a cable.

[Third Embodiment]
FIG. 12 shows the optical fiber ribbon of the third embodiment manufactured by the manufacturing method of the present invention, (A) is an enlarged perspective view of the main part thereof, and (B) is a crossing along the line H-H of (A). FIG. In the optical fiber ribbon 1 of the third embodiment, unlike the optical fiber ribbon of FIG. 1, the circumference of the optical fiber 2 at the opposing portion between the adjacent optical fibers 2 </ b> A to 2 </ b> D. The taped resin 8 is applied so as to cover more than half of the region.

  Specifically, in the area where the leftmost optical fiber core 2A and the adjacent optical fiber core 2B face each other as viewed in FIG. 12, a region of half or more of the circumference of the leftmost optical fiber core 2A is formed. The optical fiber core 2 </ b> B adjacent to the optical fiber core wire 2 </ b> B is covered with the taped resin 8 so as to be covered. However, in the leftmost optical fiber core wire 2A, a part of the colored layer 7 is exposed.

  Similarly, in the area where the optical fiber core 2D at the right end and the adjacent optical fiber core 2C adjacent to each other in FIG. 12 face each other, a region of half or more of the circumference of the optical fiber core 2D at the right end is covered. Thus, the entire periphery of the optical fiber core 2C adjacent thereto is covered with the taped resin 8. However, in the rightmost optical fiber core wire 2D, a part of the colored layer 7 is exposed.

  In the optical fiber ribbon 1 of the third embodiment, similar to the optical fiber ribbon of FIG. 1 described above, when tearing from the inter-fiber separator 4 at the time of single-core separation, first, the inter-fiber connection 3 is connected. A tape is required that requires a tearing force, and then covers the colored layer 7 of the optical fiber cores 2A to 2D and the region of the optical fiber cores 2A to 2D opposite to each other at a half or more of the circumference of the optical fiber core 2 Since a tearing force that peels off the interface of the resin 8 is required, the single core can be easily separated when the fiber is drawn, and the single core is not carelessly separated when mounted on the cable.

  In the third embodiment, even if the entire circumference of the optical fiber core 2 is not covered with the taped resin 8, the circumferential half of the optical fiber core 2 in the opposite portions of the optical fiber cores 2A to 2D is opposed. Since the above region is covered with the taped resin 8, the taped resin 8 is coated so as to grip the optical fiber core wire 2, so that the bonding strength of the opposing parts is increased, and the single unit is inadvertently inadvertent. Heart separation is suppressed.

  In order to manufacture the optical fiber ribbon 1 of the third embodiment, the shapes of the resin supply unit 12 and the resin coating unit 13 in the array resin coating apparatus 17 used in the first embodiment are shown in FIGS. Change to the shape shown in C). In addition, the shape of the wire-straightening part 11 may be the same shape as 1st Embodiment.

[Fourth Embodiment]
FIG. 14 shows an optical fiber ribbon of a fourth embodiment manufactured by the manufacturing method of the present invention, (A) is an enlarged perspective view of the main part, and (B) is a cross-section taken along line II in (A). FIG. In the optical fiber ribbon 1 shown in FIG. 14, the thickness of the inter-core connection part 3 is thinner than that of the optical fiber ribbon shown in FIG. 12. In order to manufacture the optical fiber ribbon 1 having this shape, it can be easily manufactured by changing the shape of the opening 30 of the resin coating 13 shown in FIG.

  According to the optical fiber ribbon 1 of the fourth embodiment, similar to the optical fiber ribbon of the third embodiment, when tearing from the inter-fiber separator 4 at the time of single-core separation, first, the inter-fiber connection 3 After that, a region more than half the circumference of the optical fiber core 2 in the opposite portion between the colored layers 7 of the optical fiber cores 2A to 2D and the adjacent optical fiber cores 2A to 2D is required. Since a tearing force for peeling the interface with the coated taped resin 8 is required, the single-core can be easily separated when the fiber is drawn, and the single-core is not carelessly separated when stored in the cable.

[Example 2]
Here, the optical fiber ribbons of the second embodiment shown in FIG. 11 were manufactured under the conditions shown in Table 1 (Conditions 1 to 6), and the obtained optical fiber ribbons were evaluated. In the evaluation, whether or not the separation portion between the cords was created, whether single-core separation or disconnection occurred during the rewinding test, or whether the fusion splicing was possible was evaluated.

  In the evaluation of whether or not the separation part between the cords has been created, the separation part between the cords for continuous 100 pitches is measured, and the length of the separation part between the cords is ± 20% of the length of the separation part between the cords. It was measured whether it was within. Of the 100 pitches, 90 or more pitches were evaluated as ◯ and less than 90 pitches were evaluated as x when the location was within ± 20% of the target inter-core separation length. Moreover, in order to form the separation part between core wires, it formed by rotating the rotary blade which provided the resin removal member in the disk. In Table 1, the fiber coloring diameter represents the diameter of the optical fiber core (the diameter of the entire optical fiber including the direct color layer 7), the die represents the resin coating portion 13, and the die outlet represents the resin coating portion 13. Represents the exit.

According to this experimental result, if the relationship between the optical fiber core separation distance Hd at the die exit surface and the thickness Wb of the resin removing member 31 is Hd> Wb (Conditions 1 to 5), the optical fiber core An optical fiber ribbon can be manufactured without damaging the wire. In the optical fiber ribbon manufactured under the condition 6, since the relationship of Hd <Wb is satisfied, the connecting portion between the cores is separated during the rewinding test, and the single core is separated or disconnected. Also, according to this experimental result, 2 of the taped resin thickness h in the X direction, which is the width direction of the optical fiber separation part, and the optical fiber separation distance Hr of the optical fiber connection part after curing the taped resin. If the relationship with the double value 2h is Hr> 2h and Hr ≦ 100 μm (conditions 2 to 4 and 6), the inter-core separation part can be produced, but otherwise (conditions 1 and 5) It is not possible to produce an interspace. Moreover, if the fiber pitch of the connection part between core wires is 375 micrometers or less (conditions 2-4), batch fusion | fusion connection will be attained .

  INDUSTRIAL APPLICABILITY The present invention can be used for an optical fiber tape core obtained by joining and integrating a plurality of optical fiber cores with a resin and arranging them in a line.

DESCRIPTION OF SYMBOLS 1 ... Optical fiber tape core wire 2 (2A-2D) ... Optical fiber core wire 3 ... Connection part between core wires 4 ... Separation part between core wires 5 ... Quartz glass fiber 6 ... Outer coating layer 7 ... Colored layer 8 ... Tape formation Resin 9 ... Inter-core wire separation part forming device 10 ... Sending drum 11 ... Wire-shaping part 12 ... Resin supply part 13 ... Resin coating part 14 ... Ultraviolet lamp 15 ... Winding drum 17 ... Array resin coating device 27 ... Resin tank 28 ... Resin supply nozzle 29 ... Resin pressure adjusting means 31 ... Resin removing member 32 ... Concentration roller

Claims (5)

A plurality of optical fiber cores are arranged in a row with a predetermined gap, and the entire periphery of each optical fiber core is covered with a resin, or the opposite portions of adjacent portions between adjacent optical fiber cores are arranged. More than half of the circumference of the optical fiber core wire is coated with resin, and the optical fiber core wires facing each other are connected by an inter-fiber core connecting portion provided intermittently in the longitudinal direction of the tape core wire. Thus, the inter-core separation part formed as a gap between the optical fiber cores opposed to each other and the inter-core connection part for connecting the optical fiber cores with the predetermined gap therebetween in the longitudinal direction of the tape core. A method of manufacturing alternately formed optical fiber ribbons,
An arranging step of arranging the plurality of optical fiber core wires in a row with a predetermined gap;
Half of the circumference of the optical fiber core so as to cover the entire circumference of each optical fiber core wire, including between the optical fiber core wires after the placement step, or at the opposite portion between adjacent optical fiber core wires An application step of applying a resin so as to cover the above region;
The relationship between the distance Hd between the optical fiber cores adjacent to each other after the coating step and the thickness Wb of the resin removing member is Hd> Wb, and the resin between the adjacent optical fiber cores is in a state before the resin is cured. By inserting a removing member to remove uncured resin and intermittently forming an inter-core separating portion that becomes the gap in the longitudinal direction of the tape core wire, the inter-core connecting portion is provided between the inter-core separating portions. An intermittent forming step to form;
After the intermittent forming step, the uncured resin is cured, and after the uncured resin is cured , the optical fiber core wire separation distance Hr of the inter-core connection portion and the optical fiber core width direction X of the inter-core separation portion. A method of manufacturing an optical fiber ribbon comprising a curing step in which the relationship between the taped resin thickness h and the value 2h of 2 is Hr> 2h and Hr ≦ 100 μm . It is a manufacturing method of the optical fiber tape cable core according to claim 1,
The method of manufacturing an optical fiber ribbon, wherein the length of the separation portion between the core wires is within ± 20% of the length of the separation portion between the core wires. A plurality of optical fiber cores are arranged in a row with a predetermined gap, and the entire periphery of each optical fiber core is covered with a resin, or the opposite portions of adjacent portions between adjacent optical fiber cores are arranged. More than half of the circumference of the optical fiber core wire is coated with resin, and the optical fiber core wires facing each other are connected by an inter-fiber core connecting portion provided intermittently in the longitudinal direction of the tape core wire. Thus, the inter-core separation part formed as a gap between the optical fiber cores opposed to each other and the inter-core connection part for connecting the optical fiber cores with the predetermined gap therebetween in the longitudinal direction of the tape core. A manufacturing device for manufacturing alternately formed optical fiber ribbons,
Cover the entire circumference of each optical fiber core, including between the optical fiber cores of a plurality of optical fiber cores arranged in a row at a predetermined interval, or between adjacent optical fiber cores A resin removing member is inserted into the resin between adjacent optical fiber cores of the resin applied so as to cover a region of the circumference of the optical fiber core wire of the opposite portions at least half of the circumference. An inter-core separation part forming device for removing uncured resin before the resin is cured ;
Curing means for curing the applied uncured resin;
With
The thickness Wb of the resin removing member with respect to the separation distance Hd between the adjacent optical fiber cores is set as Hd> Wb, the separation distance Hr between the optical fiber cores of the inter-core connection part after curing the uncured resin, An optical fiber tape core wire having a relationship between a value 2h which is twice the taped resin thickness h in the optical fiber core width direction X of the inter-core wire separation portion is Hr> 2h and Hr ≦ 100 μm manufacturing device. Claim 1 or 2 optical fiber ribbon, wherein the kite is manufactured by the manufacturing method of the optical fiber ribbon according. An optical fiber cable mounted with an optical fiber ribbon manufactured by the method for manufacturing an optical fiber ribbon according to claim 1 or 2 .

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