Abstract:

In order to achieve the short-period UV-induced grafting dying of polyester (PET) fabric at ambient temperature, 2-methyl-3-buten-2-ol was applied to modify reactive dye to prepare modified dye monomer and the modified dye was then grafted onto alkali treated PET fabrics via UV-induced method. HNMR, ATR and SEM were employed to characterize the chemical structure of PET fabrics before and after modification and dyeing. The change of wearability of PET fabrics before and after dying was analyzed by testing of color depth, rubbing fastness, air permeability, tensile properties and stiffness. The results showed that compared with untreated and dyed PET fabric, alkali-treated and dyed PET fabric possessed good color depth with ΔE of nearly 14, dry?rubbing?fastnesses of Grade 4 and?wet rubbing fastness of Grade 3-4, and slightly decrease in tensile properties, stiffness and air permeability.

Key words: PET fabric, modified reactive dye, alkali treatment, UV-induced grafting, wearability