This course would cover the fundamentals conventional printing, the complexities and limitations. Introduce the concept of transfer printing and mainly cover the sublimation transfer printing which is commercially being used. The next logical development in textile printing has been the direct digital printing of textiles. The concept, the advantage,principles of ink-jet technology, complexities involved, general machinery, the inks and requirements of pre- and post treatments.
INTENDED AUDIENCE :Students, teachers and persons working in textile industry, textile chemical processing PREREQUISITES : Should have basic knowledge of dyeing and printing, would help if has studied courses in textile chemical processing.l INDUSTRY SUPPORT : Not any in particular, All textile processing industries would value
Week 1: Recall conventional printing, colourants: dyes and pigments Week 2: Thickeners, viscosity, rheology, discharge –resist style Week 3:Transfer printing, transfer paper printing, dyes and inks Week 4: Mechanism of sublimation transfer, Free path length , general machinery Week 5: Introduction to digital printing, ink-jet printing principles: continuous jetting Week 6: Drop-on-demand principle, general machinery Week 7: Pre-treatment, ink-types and substrate, pigment inks Week 8: Disperse inks, acid inks , reactive inks