Supercritical carbon dioxide dyeing technology is used to dye recycled polyester cheese.The dyeing process is optimized,and the dyeing stability is explored.The results show that at a temperature of 120℃ and a pressure of 24 MPa,the maximum K/Svalue can be achieved with Disperse Blue 79 and Disperse Orange 30 for 60 min,and Disperse Red 60 for 90 min.The color fastness of the three dyes reaches Grade 4-5,which meets the requirements of national standards.The reflection rate curve indicates good dyeing stability without obvious intersection.
supercritical carbon dioxide dyeingrecycled polyester cheesedisperse dyesdyeing process
维普
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