Jet dyeing machine

Abstract

An improved low liquid gentle jet dyeing machine which has a pressure vessel with one or more inner chambers located interior to and spaced from the interior edges of the pressure vessel. An endless rope of fabric is contained within each inner chamber. The fabric is plaited to form a plug in the inner chamber. A rotatable perforated barrel reel lifts the fabric from this plug through the outlet of the inner chamber. The fabric then enters a jet dyeing chamber which contains a parallel flow non-clog venturi disposed so as to gently impregnate the fabric with dye liquid. The fabric exits the jet dyeing chamber through a cloth discharge tube which is disposed to convey the fabric to the entrance of the inner chamber in such a way that the angular change of direction of the fabric is minimized. The side walls and floor of the inner chamber are perforated, with the number of side wall perforations being greater toward the chamber entrance and lesser toward the chamber outlet. As the fabric leaves the cloth discharge tube and contacts the inner chamber, the dye liquid leaves the fabric through the perforations of the inner chamber. A plastic liner is placed along the floor of the inner chamber in order to assist the movement of the plug of fabric from the entrance to the outlet of the inner chamber. The inner chamber has a cross section which increases in depth from the entrance to the outlet to allow the fabric plug to progress from the entrance to the outlet with less and less binding. Beneath the vessel is a pump suction header which maximizes the net positive suction pressure for the pump which recirculates the dye from the pressure vessel to the non-clog jet venturi.