Molding Process
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Metamerism Problem in PCTG Color Matching
Problem Phenomenon
The color display is inconsistent under different light sources (metamerism).
Cause Analysis
The spectral reflectance curve of the colorant does not match the PCTG base material, and the color rendering differs under different light sources.
Solution
Select colorant combinations with small metamerism; compare under multiple light sources.
Key Takeaway
PCTG color matching metamerism is a concern for high-end applications.
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