Apparatus for steaming printed fabrics

In an apparatus for treating printed fabrics in which air is circulated and at least a portion of the circulating air circulates between intermediate levels with respect to the height of the treating chamber, the improvement which comprises a double wall static structure, constituting the treating environment, said structure defining in the interior thereof a chamber opened at the bottom, having a saddle roof (10), double vertical side walls (12) and double vertical front wall (14), gaps formed by said double walls (16, 18, 20), perforated ducts (22) for emitting steam into a water pool at the base of said gaps in the vertical side walls and vertical front walls to the top of said chamber under said saddle roof, ports (28) in said saddle roof for introducing said steam from the top to the bottom into said treating environment, at least one operating assembly located in at least a portion of the side walls of the static structure, means for introducing air at the base of said operating assembly, said operating assembly including mechanical means effective to cause the air to circulate through a circuit looped through said operating assembly, said assembly including radiator means (42) for applying thermal energy to the air circulating through said circuit, and a supply system adapted to supply selectively liquid and/or gaseous substances and power means effective to supply said radiator means with thermal energy, said supply system being effective to be put in an operative or inoperative position to selectively set said apparatus to operate, by saturated steam or superheated steam, or by hot air.