SADFA 2 Printing Technology

stock-photo-8628668-silkscreen-ink-or-paint Pigments
Pigment printing of cotton and viscose rayon and their blends with polyester.

Reactive Dyes
Printing of cotton and viscose rayon with reactive dyes by both all-in and two stage processes.

Vat Dyes
Printing of cotton and viscose rayon with vat dyes by both all-in and two stage methods.

Printing of Polyamide
Printing of polyamide substrates with acid and premetallised dyes.

Printing of Polyester
Printing of polyester with disperse dyes by both conventional and heat-transfer systems.

Printing of Acrylics
Printing of acrylic and modacrylic fibres with basic dyes. Handling of knitted fabrics in printing and finishing.

Discharge and Resist Printing
An explanation of the principles, controls and methods of discharge and resist printing.

Fixation and Aftertreatment
Description of steaming, baking and flash-ageing processes. The importance of control and consistency. Mechanisms of fixation of various dye classes. The use of aftertreatment processes such as cationic fixing agents and the application of softeners and syntans.