Wavelength-Shift Composite Light-Storing Powder for Heat-Resistant Fibers
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Solution Overview
Problem
Conventional light-storing fibers have high production costs, limited heat resistance, and monotonous color emission, with insufficient wash durability and filament processing capabilities, limiting their application scope and competitiveness.
Innovation Solution
A wavelength-shift composite light-storing powder is created by embedding metal ions of inorganic metal oxides into the structure defects of light-storing materials through high-speed collisions in extremely low temperatures, enabling multi-wavelength light emission and enhancing heat resistance and wash durability by forming a composite light-storing fiber with rare earth elements and inorganic metal oxides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high content of light-storing powder (about 30% by weight) is used in conventional light-storing fiber, then luminance performance is improved, but production cost increases and production efficiency decreases
Solution Approach 1:
The patent creates a composite light-storing powder system combining rare earth element-containing phosphor particles (providing luminance) with inorganic metal oxide particles (providing heat resistance and processability). This composite structure allows the light-storing fiber to achieve good luminance performance with reduced powder content (below 30% by weight), thereby improving production efficiency and reducing costs while maintaining performance through the synergistic effects of the composite materials.
2Illumination intensity
If high content of light-storing powder is used, then luminance performance is improved, but heat resistance for spinning and yarning processes deteriorates
Solution Approach 1:
The inorganic metal oxide particles (such as alumina, silica, or titania) serve as a heat-resistant matrix or support structure within the composite light-storing powder. These metal oxides have high melting points and thermal stability, enabling the light-storing fiber to withstand the high temperatures of spinning and yarning processes while maintaining structural integrity and luminance performance.
Solution Approach 2:
The patent modifies the thermal parameters of the light-storing powder by incorporating inorganic metal oxides with high thermal stability. This changes the temperature resistance characteristics of the composite material, allowing it to maintain its luminance properties and structural stability at elevated temperatures during fiber processing operations.
3Ease of manufacture
If conventional light-storing fiber is used, then production is simplified, but wash durability and filament processing capability deteriorate
Solution Approach 1:
The inorganic metal oxide component in the composite light-storing powder provides chemical stability and durability against washing and mechanical processing. The metal oxide particles form a stable composite structure with the phosphor particles, preventing degradation during washing cycles and filament processing, thereby improving wash durability and processing capability while maintaining ease of manufacture through a straightforward composite powder formulation.
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 solution achieves multi-color light emission, increased heat resistance, and wash durability, reducing the Denier number and amount of light-storing material used, while maintaining luminance and extending the fiber's application in various industries such as textiles and safety products.
Implementation Method 1
to cause photon jump across energy gap, to produce the composite light-storing powder of cool color series light wavelength
Implementation Method 2
through high speed collisions in an environment of extremely low temperature, so that the metal ions of inorganic metal oxide can be imbedded into the structure defects
Data Source
AI summary
A wavelength-shift composite light-storing powder and method of manufacturing and applying the same. Wherein, inorganic metal oxide and light-storing material containing rare earth elements are made to collide at high speed in an environment of extremely low temperature. The collision process makes said inorganic metal oxide to produce fusion reaction on surface of said light-storing material, that causes changes of lattice structure, to generate photon shift phenomenon and produce said wavelength-shift composite light-storing powder. Said composite light-storing powder is apt to engage cross-linked structure of thermoplastic polymer in a high temperature blending process, to achieve even distribution. Finally, through a filament process to produce successfully light-storing fibers capable of emitting lights of various wavelengths, to raise its heat resistance and wash durability.