Process and apparatus for continuous dyeing of cellulosic circular knits
AssigneeDyStar Textilfarben GmbH & Co.
InventorsUwe Mrotzeck, Andreas Schrell, Thomas Nauroschat, Erol Ozcan, Alfred Tressel
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AssigneeDyStar Textilfarben GmbH & Co.
InventorsUwe Mrotzeck, Andreas Schrell, Thomas Nauroschat, Erol Ozcan, Alfred Tressel
Estimating the term…
A dyeing process comprises continuous dyeing of cellulosic circular knit, which comprises impregnating a rope of said circular knit with an aqueous liquor comprising one or more dissolved and/or dispersed dyes, any necessary fixing alkali and optionally further assistants at a temperature between 20 and 95.degree. C., squeezing off said impregnated rope and subsequently feeding said squeezed-off rope without intermediary drying into an apparatus in which said rope is opened out into a crease-free state and said dye is fixed in an unsaturated steam/air mixture which is at 100 to 160.degree. C. at an autogenous wet temperature of the moist rope of between 50 and 95.degree. C. and a fixing time of at least 20 seconds.
A process for continuous dyeing of a cellulosic circular knit, which comprises impregnating a rope of said circular knit with an aqueous liquor comprising one or more dissolved and/or dispersed dyes, any necessary fixing alkali and optionally further assistants at a temperature between 20 and 95.degree. C., squeezing off said impregnated rope and subsequently feeding said squeezed-off rope without intermediary drying into an apparatus in which said rope is opened out into a crease-free state and said dye is fixed in an unsaturated steam/air mixture which is at 100 to 160.degree. C. at an autogenous wet temperature of the moist rope of between 50 and 95.degree. C. and the fixing time is at least 20 seconds.
Dependencies are inferred from the claim text.