Process for the pad-dyeing or printing of textile material consisting of polyester or polyamide fibres or filaments, with dispersion dyes and conjoint use of methylene chloride

摘要

Textile material of polyester or polyamide fibres or filaments is dyed or printed with aqueous padding liquors or printing pastes which contain at least one dispersion dye and is then, directly or after an intermediate drying, brought into contact with liquid methylene chloride. The liquid methylene chloride is applied to the textile material in a separate step by atomising, spraying, brushing, padding, slop-padding or application of a foam thereof. The textile good is then allowed to dwell in order to fix the dye. In respect of dye utilisation (exhaustion), depth of colour and fastness properties the cold fixing process is at least as good as processes which require more expensive apparatus and more energy (for example thermosol or high temperature processes).