Abstract: There is effected an accelerated direct neutralization in-situ of the substrates which are impregnated with alkaline hydroxide which is free or fixed on the cellulose, by contact with a neutralizing fluid containing carbon dioxide in a gaseous, aqueous or combined phase, this fluid being introduced in accordance with requirements related to the quantity of alkali to be neutralized. The process may be used in the textile industry in continuous and discontinuous treatments and is adaptable to all types of textile machines employing an aqueous method.

Abstract: Apparatus for dyeing a length of fabric includes a chamber having a pair of cylinders, between which the fabric is held as it is dyed by dye emitted from an apertured pipe positioned between the cylinders. Adjacent to these cylinders are washers and a steam box. The length of fabric is formed into a loop on the cylinders and on a drive roll, and it is passed through the dyeing station where it is dyed. Heating elements and washing means are also provided in the chamber.