A method for preventing or. Reduction of the migration of disperse dyes or. Optical brighteners in inue - staining procedure

摘要

1518619 Dyeing and optical brightening of polyester materials BABCOCK-BSH AG 23 Nov 1976 [27 Nov 1975] 48759/76 Headings D1B and DIP Migration of disperse dyes and disperse optical brighteners used in the pad-dyeing or optical brightening of polyester materials or polyester blend fabrics is reduced by paddyeing or optically brightening in presence of a migration inhibitor and then before drying submitting the material to the combined effect of superheated steam and infra-red irradiation such that the moisture reduction in the fabric is from 5 to 50% of its initial moisture content within a period of 30 seconds. Any migration inhibitor natural or synthetic may be used e.g. alginates, locust bean gum or polyacrylic acid amides, polyester and polyester blend mesh fabrics e.g. polyester-cellulose are treated. The materials are subsequently dried by conventional processes.