Dyeing device and process using indigo and other colorants

Details Dyeing device and process using indigo and other colorants Dyeing device and process using indigo and other colorants

2005-07-27

2011-11-22

Perrin, Joseph L (Department: 1711)

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Special forms and forming

C008S149300, C008S150000, C068S00500D, C068S007000, C068S009000

Reexamination Certificate

active

08060963

ABSTRACT:
A continuous dyeing device and related processes using indigo and/or other colorants for warp yarn chains and/or for fabrics, equipped with at least a first and a second dyeing compartments containing dyeing baths, the first and second dyeing compartments being enclosed, at least partially, in a hermetically sealed chamber. The device also includes at least one squeezing element interposed between the two dyeing compartments and a plurality of cylinders for heating and/or dehydrating the yarn and or the fabric, thereby increasing the diffusion and the absorption of the colorant. The cylinders are positioned downstream of the first dyeing compartment and squeezing element.

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