JP2005099634A - Optical fiber sheet and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture an optical fiber sheet, having optical connectors of high yield eliminating the need for discarding the entire optical fiber sheet, even though mounting mistake of the optical connectors and wiring mistake of optical fibers occur during the manufacturing process, thereby reducing waste of materials caused by the occurrence of failed parts . <P>SOLUTION: Optical fibers 101 are pasted onto each of a pressure sensitive adhesive layer 12 of a plurality of divided sheets 10 and wired, and the plurality of the divided sheets 10 are mutually arranged in a flat surface manner to form an assembled body. A pressure-sensitive adhesive layer 22 of a total sheet 20, having a shingle pressure adhesive layer that has the size to cover the assembled body and the adhesive layer of the assembled body, are pasted together. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an optical fiber sheet and a manufacturing method thereof, and more particularly to a manufacturing method of an optical fiber sheet with an optical connector.

  The optical fiber sheet is formed by arranging a plurality of optical fibers between two flexible resin sheets of the same size that are bonded together in order to align the optical fibers, align the length, and absorb the extra length. Is.

  Usually, an optical fiber sheet is attached to a pressure-sensitive adhesive layer of a resin sheet having a pressure-sensitive adhesive layer (adhesive layer) on one side with a predetermined wiring pattern. A resin sheet having a pressure-sensitive adhesive layer is bonded and a plurality of optical fibers are sandwiched and fixed between two resin sheets (for example, Patent Document 1).

  An optical fiber sheet with an optical connector is a single-core optical connector such as an SC type at the end of the optical fiber wired to the optical fiber sheet as described above (the end extending outward from the optical fiber sheet). Alternatively, a multi-fiber optical connector such as an MT type is attached and used for wiring in an optical device (for example, Patent Document 2).

  The pressure-sensitive adhesive layer of the resin sheet used for the optical fiber sheet has a relatively strong adhesive strength so that the two resin sheets are bonded together to obtain a sufficient peel strength. For this reason, once the optical fiber is attached to the pressure-sensitive adhesive layer of the resin sheet on one side, it is difficult to remove the optical fiber from the resin sheet without causing damage.

  For this reason, in the manufacturing process of an optical fiber sheet, if a wiring mistake or a mistake in mounting an optical connector after wiring (after bonding) occurs even at one place, the optical fiber sheet becomes a defective product, and the entire It will be destroyed. Therefore, the yield in optical fiber sheet manufacturing is reduced.

  On the other hand, in the optical fiber sheet with an optical connector of Patent Document 2, before attaching the optical fiber to the resin sheet, the optical connector is attached to the optical fiber, and the optical fiber to which the optical connector is attached is connected to the wiring length, The wiring route is adjusted and then sandwiched between resin sheets.

In this optical fiber sheet with an optical connector, it is avoided that the optical fiber sheet becomes a defective product due to an optical connector attachment error. However, since the optical fiber is wired directly on the resin sheet with a strong pressure-sensitive adhesive layer, if a wiring mistake such as the wiring length or wiring route occurs even at one location, it cannot be redone and becomes a defective product. , Will destroy the whole. Such a phenomenon becomes more conspicuous as the number of optical fibers wired to one optical fiber sheet increases, and material waste due to generation of defective products increases.
JP 2001-133639 A JP 2002-67851 A

  The problem to be solved by the present invention is that even if an optical connector attachment error or an optical fiber wiring error occurs in a part of the manufacturing process, the entire optical fiber sheet is not discarded, and the material generated due to the occurrence of defective products An object of the present invention is to manufacture an optical fiber sheet, particularly an optical fiber sheet with an optical connector, with reduced waste and good yield.

  An optical fiber sheet according to the present invention is an assembly in which an optical fiber is bonded and wired to each pressure-sensitive adhesive layer of a plurality of divided sheets, and the plurality of divided sheets are arranged in a plane. The pressure-sensitive adhesive layer of the whole sheet with a pressure-sensitive adhesive layer of a size that can be included is pasted in a state where both pressure-sensitive adhesive layers are pasted together.

  In the optical fiber sheet according to the present invention, preferably, the divided sheet is composed of only a pressure-sensitive adhesive layer, and an optical fiber is attached and wired on one surface of the pressure-sensitive adhesive layer to attach the whole sheet. The other sheet of the pressure-sensitive adhesive layer was bonded to the other surface of the pressure-sensitive adhesive layer with another pressure-sensitive adhesive layer having a size capable of enclosing the assembly. In the state, it is pasted.

  In the optical fiber sheet according to the present invention, the divided sheets are laminated in a multilayer between the two sheets to form an optical fiber sheet having a multilayer structure.

  Moreover, the optical fiber sheet by this invention has the optical connector attached to the edge part of the said optical fiber.

  An optical fiber sheet manufacturing method according to the present invention includes a step of attaching and wiring an optical fiber to each pressure-sensitive adhesive layer of a plurality of divided sheets, and arranging the plurality of divided sheets in a plane and mutually A flat sheet is attached to the pressure-sensitive adhesive layer of the entire sheet with a pressure-sensitive adhesive layer of a size that can cover all of the pressure-sensitive adhesive layers in a state where both pressure-sensitive adhesive layers are bonded to each other. Process.

  Also, in the method for manufacturing an optical fiber sheet according to the present invention, an optical fiber is attached to each pressure-sensitive adhesive layer of a plurality of divided sheets having a structure having a pressure-sensitive adhesive layer on one surface of a release paper, and wiring is performed. The step and the plurality of divided sheets are arranged in plane with each other, and the divided sheets in a plane arrangement are formed on the pressure-sensitive adhesive layer of the entire sheet with a pressure-sensitive adhesive layer having a size capable of enclosing the whole. In the state where both pressure-sensitive adhesive layers are bonded to each other, the step of affixing and the release sheet of the pressure-sensitive adhesive layer of the split sheet after peeling off the release sheet of the split sheet after peeling off the release sheet A second sheet with a pressure-sensitive adhesive layer of a size that can cover the entire planar arrangement of the plurality of divided sheets, in a state where the two pressure-sensitive adhesive layers are bonded together. Attaching.

  In the optical fiber sheet manufacturing method according to the present invention, an optical connector is attached to an end of the optical fiber before the divided sheet is bonded to the whole sheet.

  According to the optical fiber sheet and the manufacturing method thereof according to the present invention, since the optical fiber wiring is performed on the divided sheet divided into a plurality of parts, an optical connector wiring error or an optical fiber wiring error is caused during the manufacturing process. Even if it occurs, the sheet can be discarded in units of divided sheets, and it is not necessary to discard the entire optical fiber sheet. Thereby, waste of materials due to generation of defective products is reduced, and an optical fiber sheet, in particular, an optical fiber sheet with an optical connector can be manufactured with a high yield.

  One embodiment of an optical fiber sheet and a manufacturing method thereof according to the present invention will be described with reference to FIGS.

  First, as shown in FIG. 1 (a), a structure having a pressure-sensitive adhesive layer 12 made of an adhesive such as rubber or acrylic on one surface of a release paper (release sheet) 11, for example, A plurality of divided sheets 10 made of double-sided adhesive tape (sheet) are prepared. Then, the plurality of optical fibers 101 are each arranged in a predetermined wiring pattern, and are grouped into the same number as the number of the divided sheets 10, and for each group, the pressure-sensitive adhesive layer 12 of the corresponding divided sheet 10. Press on.

  As a result, as shown in FIGS. 1B and 2, the optical fibers 101 are each attached and wired to each of the plurality of divided sheets 10 with a predetermined wiring pattern.

  As shown in FIG. 2, the optical fiber 101 that is bonded to the pressure-sensitive adhesive layer 12 of the divided sheet 10 is wired with the multi-fiber ribbon 100 less than the number of cores of the multi-fiber ribbon 100. In this embodiment, the optical fiber is a single-core optical fiber.

  A multi-fiber optical connector 102 is attached to the end portion 100 </ b> A of the multi-fiber ribbon 100. The tips 101A and 101B of the single optical fiber 101 extend outward from the first sheet 10, and the optical connector 103 for a single core is attached to the tips 101A and 101B.

  The optical connectors 102 and 103 are attached before the optical fiber 101 is attached and wired on the pressure-sensitive adhesive layer 12 of the divided sheet 10 or the optical fiber 101 is attached on the pressure-sensitive adhesive layer 12 of the divided sheet 10. This is performed before pasting of the entire sheet 20 to be described later in any of the pasted and wired states.

  As a result, even if an attachment error of the optical connectors 102 and 103 or a wiring error of the optical fiber 101 occurs, the sheet is discarded by the unit of the divided sheet 10 in which the error has occurred, and it is not necessary to discard the entire optical fiber sheet.

  The optical fiber is not limited to one having both ends attached to the connector, and the optical connector may be attached to only one of the multi-core side or the single-core side, and the other may be the pigtail fiber.

  Next, as shown in FIG. 1 (c), the plurality of divided sheets 10 to which the optical fibers 101 with the optical connectors 102 and 103 attached are attached and wired are turned upside down, and the plurality of divided sheets are divided. Sheets 10 are arranged in a plane. Then, a whole sheet 20 with a pressure-sensitive adhesive layer 22 having a size capable of enclosing the whole is prepared, and as shown in FIG. 1 (d), the pressure-sensitive adhesive of the whole sheet 20 is prepared. The entire divided sheet 10 (aggregate) in a planar arrangement is bonded to the layer 22 in a state where the pressure-sensitive adhesive layers 12 and 22 of both the divided sheet 10 and the entire sheet 20 are bonded together.

  The entire sheet 20 has a pressure-sensitive adhesive layer 22 on one entire surface of a sheet base material 21. The pressure-sensitive adhesive layer 22 is composed of a pressure-sensitive adhesive having viscoelastic properties at room temperature, such as rubber-based or acrylic-based.

  The sheet base material 21 is made of a resin having flexibility, and the material and thickness thereof are determined according to the required workability, scratch resistance, waist strength (bending rigidity), and tensile strength. It is appropriately selected in consideration of the rate.

  Examples of the sheet base material 21 include polyimide, polyethylene terephthalate, low density or high density polyethylene, polypropylene, polyester, nylon 6, nylon 66, ethylene-tetrafluoroethylene copolymer, poly-4-methylbenten, and polyvinylidene chloride. Films such as plasticized polyvinyl chloride, polyether ester copolymer, ethylene-vinyl acetate copolymer, and flexible polyurethane are used.

  Next, as shown in FIG. 1E, the release paper 11 of each of the plurality of divided sheets 10 is peeled off.

  Next, as shown in FIG. 1 (f), another pressure-sensitive adhesive layer 32 having a size capable of covering the entire planar arrangement (aggregate) of the plurality of divided sheets 10 is provided. 1 is prepared, and as shown in FIG. 1 (g), on the release paper release surface (upper surface in FIG. 1) of the pressure sensitive adhesive layer 12 of the divided sheet 10 after release paper release, The whole sheet 30 is stuck in a state where the pressure-sensitive adhesive layers 12 and 32 of both the divided sheet 10 and the whole sheet 30 are stuck together.

  As a result, as shown in FIG. 3, an optical fiber sheet in which a plurality of optical fibers 101 with optical connectors 102 and 103 are sandwiched between the entire sheets 20 and 30 is completed.

  As described above, in the optical fiber sheet according to this embodiment, wiring of the optical fiber 101 is performed with respect to the divided sheet 10 divided into a plurality of parts. Even if a wiring mistake of 101 occurs, the sheet can be discarded in units of 10 divided sheets, and it is not necessary to discard the entire optical fiber sheet. An optical fiber sheet with an optical connector can be manufactured.

  Note that the bonding boundary between the pressure-sensitive adhesive layers 12 and 22 and the pressure-sensitive adhesive layers 12 and 32 may be almost unknown due to the bonding between the equivalent pressure-sensitive adhesive layers.

  As another embodiment, after the step of FIG. 1 (e), another divided sheet 10 with optical fiber wiring is bonded to the release paper release surface of the pressure-sensitive adhesive layer 12 of the divided sheet 10, By attaching the whole sheet 30 to the release paper release surface of the adhesive layer 12, as shown in FIG. 4, a multilayered optical fiber sheet can be obtained.

  Also in this case, since the wiring of the optical fiber 101 is all performed on the divided sheet 10 divided into a plurality of parts, an error in mounting the optical connectors 102 and 103 and a wiring error in the optical fiber 101 occur in the manufacturing process. However, the sheet discarding may be performed in units of 10 divided sheets, and it is not necessary to discard the entire optical fiber sheet, the material waste due to the generation of defective products is reduced, and an optical fiber sheet having a multilayer structure can be manufactured with a high yield.

  Next, another embodiment of the optical fiber sheet and the manufacturing method thereof according to the present invention will be described with reference to FIGS. In FIG. 5, parts corresponding to those in FIG. 1 are denoted by the same reference numerals as those in FIG.

  First, as shown in FIG. 5A, a plurality of divided sheets having a structure having a pressure-sensitive adhesive layer 42 made of an adhesive such as rubber or acrylic on one surface of a sheet base material 41. Prepare 40. Then, the plurality of optical fibers 101 are each arranged in a predetermined wiring pattern, and are grouped into the same number as the number of the divided sheets 40, and the pressure-sensitive adhesive layer 42 of the corresponding divided sheet 40 is assigned to each group. Press on.

  As a result, as shown in FIG. 5B, the optical fibers 101 are attached and wired to each of the plurality of divided sheets 40 with a predetermined wiring pattern.

  The sheet base material 41 of the divided sheet 40 is made of a resin having flexibility like the sheet base material 21 of the entire sheet 20, and the material and thickness thereof are required for workability and scratch resistance. Depending on the strength of the waist (flexural rigidity) and the tensile strength, the Young's modulus is taken into consideration.

  As the sheet base material 41, for example, polyimide, polyethylene terephthalate, low-density or high-density polyethylene, polypropylene, polyester, nylon 6, nylon 66, ethylene-tetrafluoroethylene copolymer, poly-4, etc. -Films such as methylbenten, polyvinylidene chloride, plasticized polyvinyl chloride, polyether ester copolymer, ethylene-vinyl acetate copolymer, flexible polyurethane are used.

  Also in this embodiment, although not shown, an optical connector is attached to the end of the optical fiber tape 101 or the like. This optical connector is also attached before the optical fiber 101 is pasted and wired on the pressure-sensitive adhesive layer 42 of the divided sheet 40, or the optical fiber 101 is pasted and wired on the pressure-sensitive adhesive layer 42 of the split sheet 40. In any of the above states, this is performed before the entire sheet 20 described later is bonded.

  As a result, even if an optical connector attachment error or an optical fiber 101 wiring error occurs, the sheet is discarded in units of the divided sheet 40 in which the error has occurred, and it is not necessary to discard the entire optical fiber sheet.

  Next, as shown in FIG. 5C, the plurality of divided sheets 40 to which the optical fiber 101 with the optical connector attached is attached and wired are turned upside down, and the plurality of divided sheets 40 are turned upside down. Plane each other. And the whole sheet | seat 20 with the pressure sensitive adhesive layer 22 of the magnitude | size which can enclose the whole is prepared, and as FIG.5 (d) shows, the pressure sensitive adhesive of this whole sheet | seat 20 is shown. The entire divided sheet 40 (aggregate) arranged in a plane is bonded to the layer 22 in a state where the pressure-sensitive adhesive layers 42 and 22 of both the divided sheet 40 and the entire sheet 20 are bonded together.

  As a result, an optical fiber sheet in which a plurality of optical fibers 101 with optical connectors are sandwiched between the aggregate of divided sheets 40 and the entire sheet 20 is completed.

  As described above, even in the optical fiber sheet according to this embodiment, wiring of the optical fiber 101 is performed on the divided sheet 40 divided into a plurality of parts. Even if a wiring mistake 101 occurs, the sheet can be discarded in units of 40 divided sheets, and it is not necessary to discard the entire optical fiber sheet. An optical fiber sheet with an optical connector can be manufactured.

(A)-(g) is a figure which shows one Embodiment of the process of the optical fiber sheet by this invention, and its manufacturing method. It is a top view of the division sheet in the optical fiber sheet by one embodiment. It is a top view of the optical fiber sheet by one embodiment. It is a figure which shows other embodiment of the optical fiber sheet by this invention. (A)-(d) is a figure which shows other embodiment of the process of the optical fiber sheet by this invention, and its manufacturing method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Split sheet 12 Pressure sensitive adhesive layer 20 Whole sheet 22 Pressure sensitive adhesive layer 30 Whole sheet 32 Pressure sensitive adhesive layer 40 Split sheet 42 Pressure sensitive adhesive layer 101 Optical fiber 102 Optical connector 103 Optical connector

Claims (7)

  An optical fiber is bonded and wired to each pressure-sensitive adhesive layer of a plurality of divided sheets, and an assembly in which the plurality of divided sheets are arranged in a plane is a single sheet having a size that can encompass the aggregate. An optical fiber sheet, wherein the pressure sensitive adhesive layer of the whole sheet with a pressure sensitive adhesive layer is pasted in a state where both pressure sensitive adhesive layers are pasted together.   The divided sheet is composed of only a pressure-sensitive adhesive layer, an optical fiber is attached to one surface of the pressure-sensitive adhesive layer, and the whole sheet is attached to the other surface of the pressure-sensitive adhesive layer. On the surface, the whole sheet with another pressure-sensitive adhesive layer of a size capable of enclosing the aggregate is pasted in a state where both pressure-sensitive adhesive layers are pasted together The optical fiber sheet according to claim 1.   3. The optical fiber sheet according to claim 2, wherein the divided sheets are laminated in a multilayer between the two sheets. The optical fiber sheet according to any one of claims 1 to 3, wherein an optical connector is attached to an end portion of the optical fiber.
Production method. A step of attaching an optical fiber to each pressure-sensitive adhesive layer of a plurality of divided sheets and wiring;
The plurality of divided sheets are arranged in a plane with each other, and the two divided sheets are arranged on the pressure-sensitive adhesive layer of the entire sheet with a pressure-sensitive adhesive layer having a size capable of enclosing the whole. In the state where the pressure sensitive adhesive layers are bonded together,
The manufacturing method of the optical fiber sheet characterized by including these. A step of attaching an optical fiber to each pressure-sensitive adhesive layer of a plurality of divided sheets having a structure having a pressure-sensitive adhesive layer on one side of a release paper, and wiring;
The plurality of divided sheets are arranged in a plane with each other, and the two divided sheets are arranged on the pressure-sensitive adhesive layer of the entire sheet with a pressure-sensitive adhesive layer having a size capable of enclosing the whole. In the state where the pressure sensitive adhesive layers are bonded together,
The release sheet of the split sheet is peeled off, and the release sheet release surface of the pressure-sensitive adhesive layer of the split sheet after release of the release sheet is another size that can encompass the entire planar arrangement of the plurality of split sheets. A step of attaching the whole sheet with a pressure-sensitive adhesive layer in a state where both pressure-sensitive adhesive layers are bonded together,
An optical fiber sheet manufacturing method comprising:   7. The method of manufacturing an optical fiber sheet according to claim 5, wherein an optical connector is attached to an end of the optical fiber before the divided sheet is bonded to the whole sheet.

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