Verfahren und Vorrichtung zum Fixieren von Farbstoffen

摘要

1,211,385. Fixation of dyes on textiles. FARBWERKE HOECHST A.G. 16 Nov., 1967 [16 Nov., 1966; 11 April, 1967; 15 April, 1967], No. 52241/67. Headings D1B and D1L. Dyed textile material is treated in a pressure chamber 1 with steam at an excess pressure of 0.5-5.0 amos. while in wound-up condition on a hollow roller 4, with perforated mantle 3, the end faces of the roller being sealed and combined with pipes 5, and the roller being rotatable by motor 6. Steam feed pipes 7 pass steam through a sump 8 having an outlet tap 11. The pressure chamber may also have a vacuum device 10 and heating installations 12, e.g. electrically heated coils. Steam may also be passed through the roller by pipes 9. The textile material may be of synthetic, regenerated or natural fibres or mixtures thereof.