Resin Composition for Colored Optical Fiber Coatings to Reduce Color Peeling
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Solution Overview
Problem
Optical fibers with colored resin layers are prone to color peeling, especially when using organic pigments, which complicates the process of removing optical fibers from ribbon materials.
Innovation Solution
A resin composition for colored coating on optical fibers containing a photopolymerizable compound, photopolymerization initiator, and a specific amount of anthracene- or naphthalene-based photosensitizer, along with organic pigments, is used to enhance curing and reduce color peeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If organic pigment is used in colored resin layer, then color identification is achieved, but color peeling occurs during fiber removal from ribbon
Solution Approach 1:
The patent changes the chemical parameters of the resin composition by specifying precise proportions of photopolymerizable compounds (60-90 mass%), photopolymerization initiators (5-30 mass%), and photosensitizers (0.01-3.00 mass%). This parameter optimization ensures complete curing even with organic pigments present, preventing color peeling while maintaining color identification functionality.
Solution Approach 2:
The patent creates a composite resin system combining multiple photopolymerizable compounds (acrylates, epoxies, silicones), photopolymerization initiators, photosensitizers, and organic pigments. This composite formulation achieves synergistic effects where the combined components provide both color identification and resistance to color peeling during fiber handling.
2Reliability
If photosensitizer content is increased to improve curing, then color peeling is reduced, but resin composition complexity increases
Solution Approach 1:
The patent optimizes the photosensitizer content parameter to a specific range (0.01-3.00 parts by mass per 100 parts photopolymerizable compound). This precise parameter control achieves effective curing and color peeling resistance without requiring excessive photosensitizer addition, thereby limiting composition complexity.
3Manufacturing precision
If photopolymerization is enhanced to prevent color peeling, then curing completeness improves, but resin formulation complexity increases
Solution Approach 1:
The patent formulates a composite resin system incorporating multiple photopolymerizable compounds with different curing characteristics (acrylates for rapid curing, epoxies for structural integrity, silicones for flexibility). This composite approach ensures complete and uniform curing throughout the resin layer, preventing color peeling while distributing the formulation complexity across multiple functional components.
Solution Approach 2:
The patent specifies precise parameter ranges for all resin components to achieve optimal curing completeness. The photopolymerizable compounds constitute 60-90 mass%, photopolymerization initiators 5-30 mass%, and photosensitizers 0.01-3.00 mass%, ensuring balanced curing performance without excessive formulation complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The resin composition effectively minimizes color peeling, ensuring stable optical fiber production and handling, even with organic pigments, by optimizing curing with the photosensitizer content and type.
Implementation Method 1
contains a photopolymerizable compound, a photopolymerization initiator, a photosensitizer
Implementation Method 2
the photopolymerization initiator, a photosensitizer, and an organic pigment
Implementation Method 3
the photosensitizer includes at least one selected from the group consisting of an anthracene-based photosensitizer and a naphthalene-based photosensitizer
Data Source
AI summary
A resin composition for colored coating on an optical fiber contains a photopolymerizable compound, a photopolymerization initiator, a photosensitizer, and an organic pigment, in which the photosensitizer includes at least one selected from the group consisting of an anthracene-based photosensitizer and a naphthalene-based photosensitizer, and a content of the photosensitizer is 0.01 parts by mass or more and less than 3.00 parts by mass with respect to 100 parts by mass of the total amount of the photopolymerizable compound.