Dyeing device and process using indigo and other colorants
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United States of America Patent
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Nov 22, 2011
Grant Date -
Feb 21, 2008
app pub date -
Jul 27, 2005
filing date -
Jul 29, 2004
priority date (Note) -
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status (Latency Note)
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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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