Process for the continuous dyeing and/or finishing of wet textile webs

Claim 1

A process for applying in a continuous and level manner an aqueous impregnating liquor containing at least one treatment agent to a water-wet textile web comprising the steps of partially dewatering the water-wet textile web down to a certain residual moisture content, continuously measuring the moisture content of the web after the dewatering step and before the liquor is applied thereto, continuously passing the dewatered web through an impregnating trough over a liquor exchange unit therein, continuously applying the liquor over the width of the web by at least partially replacing the moisture already present in the textile material by passing circulating impregnated liquor through the web until a predetermine quantity of impregnating liquor is absorbed by the web, partially dewatering the textile web down to a certain residual moisture content after the application of liquor thereto, constantly measuring the moisture content of the web after the second dewatering step, controlling the moisture content of the web from the measured values such that the moisture content after the second dewatering step is higher than after the first dewatering step, and compensating for the reduction in concentration of treatment agent in the impregnating liquor, due to the liquor being diluted, and the decrease in liquor volume, due to absorption of liquid by the textile material by metering liquor to the impregnating trough as a function of the measured difference in liquor after the first and second dewatering steps.