Indigo dyeing process

Details Indigo dyeing process Indigo dyeing process

D - Textiles, Paper

06

P

8/51

D06P 1/00 (2006.01) D06P 1/22 (2006.01)

Patent

CA 1098258

297106 ABSTRACT OF THE DISCLOSURE A process and a system for dyeing yarns with indigo dye is disclosed. Previous methods for dyeing yarns with indigo dye have included the necessity of forming multiple ends of yarn into a rope and passing the rope through a series of dye baths followed by an air drying or skying step. The present method avoids the necessity of forming a rope, and avoids the skying step. Yarn is continuously passed in sheet form at least once through an indigo dye solution and thereafter squeezed to remove excess dye solution. The dyed yarns are then passed through an oxidizing liquor to fix the dye to the yarns. The system includes a dye container, means for passing yarns through indigo dye solution in the container, squeezer means for removing excess dye solution from the yarns, an oxidizing container and a means for passing yarns through oxidizing liquor in the oxidiz- ing container.

297106

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