The results showed that ultrasonic/alkali system could effectively resolve the oligomer problems in PTT fiber dyeing and improve the dye uptake and color depth to some degree.

• 结果表明,超声波/碱协同处理能有效地解决PTT聚酯纤维染色中的低聚物问题,且上染率和表观颜色深度也有所提高。