Optical fibers and optical fiber ribbons
Patent Information
- Application Number
- JP2025540674
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Priority Date
- 2023-08-15
- Filing Date
- 2024-08-08
- Publication Date
- 2025-02-20
Claims
1. A glass fiber comprising a core and a cladding, A primary resin layer that is in contact with and covers the glass fiber, A secondary resin layer covering the primary resin layer, The secondary resin layer comprises a colored resin layer covering the aforementioned secondary resin layer, The colored resin layer comprises a cured product of a resin composition containing a photopolymerizable compound, a photopolymerization initiator, and surface-treated copper phthalocyanine particles. An optical fiber in which the content of the surface-treated copper phthalocyanine particles is 0.1% by mass or more and 10% by mass or less, based on the total amount of the resin composition.
2. A glass fiber comprising a core and a cladding, A primary resin layer that is in contact with and covers the glass fiber, The system comprises a secondary resin layer covering the primary resin layer, The secondary resin layer comprises a cured product of a resin composition containing a photopolymerizable compound, a photopolymerization initiator, and surface-treated copper phthalocyanine particles. An optical fiber in which the content of the surface-treated copper phthalocyanine particles is 0.1% by mass or more and 10% by mass or less, based on the total amount of the resin composition.
3. The optical fiber according to claim 1 or claim 2, wherein the surface-treated copper phthalocyanine particles have a surface treatment layer derived from a rosin compound containing at least one selected from the group consisting of abietic acid, dehydroabietic acid, and tetrahydroabietic acid.
4. The optical fiber according to claim 1 or claim 2, wherein the amount of the surface treatment layer in the surface-treated copper phthalocyanine particles is 1% by mass or more and 20% by mass or less.
5. The optical fiber according to claim 1 or claim 2, wherein the photopolymerizable compound comprises epoxy di(meth)acrylate.
6. An optical fiber ribbon comprising a plurality of optical fibers as described in claim 1, arranged in parallel and coated with a ribbon resin.
7. An optical fiber ribbon comprising a plurality of optical fibers as described in claim 2, arranged in parallel and coated with a ribbon resin.