Atmospheric pressure dyeboarding process

Abstract

Abstract The dyeing of textile materials by first contacting the same with a liquid dye bath which may be either aqueous or essentially nonaqueous and which is maintained at an elevated temperature and then passing the dyed textile goods through a bath of molten metal maintained at a sufficiently elevated temperature that the aqueous portion of the dye bath liquid retained in the goods is converted to vapor and is completely reacted with the goods before the dyed goods leave the bath of molten metal, whereby the goods are expeditiously dyed and the dye liquid is completely exhausted without recourse to the use of superatmospheric pressures. Furthermore, the spent dye liquid no longer presents a pollution problem in the form in which it is discharged from the process.

Inventors

• 👤 Martin S Maltenfort

Bibliographic Details