Abstract: Apparatus suitable for carrying out the coloring of synthetic textile materials by a vacuum transfer printing process, the apparatus comprising means for bringing the textile material into contact with the printed surface of a carrier material which has been printed with a water-insoluble dyestuff, means for subjecting the textile material and printed carrier material while in such contact to a pressure of not more than 100 mm. of mercury, and means for heating the textile material and the printed carrier material while subjected to the said pressure to a temperature above 100.degree. C.

Abstract: A sealing apparatus which enables web material to be passed through a gap in a wall includes a plurality of main rollers in the gap in sequential contact between which the web material passes, an auxiliary roller in contact with the first and last main rollers, and a pressure-loaded bearing block mounted in a housing which forms part of the walls surrounding the gap, the coefficient of expansion of the bearing block being greater than the coefficient of expansion of the housing, and means for heating the bearing block.

Abstract: An apparatus for effecting the coloration of synthetic textile materials, at a reduced pressure, by a transfer process which comprises a pair of opposed rigid platens mounted for relative movement towards and away from each other, means for heating at least one of said platens to a temperature above 100.degree.

Abstract: An improved sealing apparatus for permitting the continuous passage of a web material through a gap in a wall separating two zones at different pressures while minimizing the flow of air from one zone to the other.

Abstract: An apparatus for the colouration of textile materials with a gaseous stream containing a dyestuff, or dyestuffs, in vapour form, which comprises means for passing a hot stream of inert gas over a dyestuff and means for allowing the resulting stream of gas containing dyestuff vapour to impinge on the textile material, in particular an apparatus comprising a reservoir for containing an inert gas under pressure, said reservoir being connected to a tube fitted with heaters, said tube containing a receptacle for the dyestuff, and the other end of the tube being fitted with a jet from which issues the stream of inert gas containing a dyestuff vapour. The apparatus is preferably used for colouring synthetic textile materials with volatile Disperse Dyestuffs.