Material Analysis
12 görüntüleme
PETG color migration during dyeing
Sorun Belirtisi
The color of PETG products migrates to contacted objects (packaging paper, other plastics), causing contamination.
Neden Analizi
The dye or pigment used has poor migration resistance, residual low-molecular substances carry the color migration, and the processing temperature is insufficient to fully fix it.
Çözüm
Select migration-resistant pigments instead of dyes; increase the processing temperature for full dispersion and fixation; seal-coat the product surface.
Temel Çıkarım
PETG color migration is closely related to colorant selection.
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