Extrusion & Post
6 visualizações
Uneven dyeing of PET fiber
Fenómeno do problema
After PET fiber dyeing, color flowers and color differences appear, and color fastness is poor.
Análise das causas
Fiber crystallinity and orientation degree are uneven, causing dye uptake differences; spinning cooling conditions fluctuate; draw ratios are inconsistent.
Solução
Stabilize spinning process parameters (temperature, cooling air, speed); control draw ratio consistency; select color masterbatch with good dispersibility.
Conclusão principal
PET fiber dyeing uniformity depends on the uniformity of the fiber microstructure.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!