Abstract: The dyeing apparatus for carrying out laboratory tests comprises a dyeing chamber which can be sealingly coupled to at least one portion of the fabric to be dyed, means being additionally provided for displacing the dyeing liquid, adapted to carry out a sequence of alternate passages of the dyeing liquid through said fabric to be dyed.

Abstract: An improved process for dyeing carpet by intermittently moving the carpet along a path having horizontal and vertical portions. The horizontal portion of the path is immersed in a print form having compartments separated by thin walls and filled with liquid dyes of varying colors, to impart a desired pattern to the fabric. After the horizontal portion of the fabric is withdrawn from the print form, the fabric is moved along its path so that the immersed portion is moved along the vertical portion of the path. A vacuum slot along the vertical portion of the path adjacent the horizontal portion is activated only while the carpet is in motion, and serves to draw the dye toward the backing of the carpet while removing excess dye therefrom. Thereafter the carpet is steamed to set the dyes.

Abstract: A method for dyeing fabric to give pattern comprises clamping the fabric in certain configurations such as a folded configuration and applying dyestuffs which diffuse differentially between the clamps.