Use of the Novel Synthesized Aqueous Binders for Pigment Printing Cotton Fabrics Using Three Modes of Fixation

Use of the synthesized aqueous polyurethane acrylate (no volatile organic compound emission) binders 1-7, in pigment printing of cotton fabrics using silk screen technique. FT-IR spectra of binders via UV curing show the disappearance of ast C=C and δ: =C-H absorption bands from the spectra chart of cured, which proofed the occurrence of cross linking reaction via terminal free acrylate double bond. Color strength of printed fabrics depends on binders' type and concentration as well as the fixation temperature. The K/S values at lower fixation temperatures on using the prepared binders in the printing paste are better than the K/S of fabric printed with paste including the commercial binder at the same condition ( saving energy& money). The fastness properties of the printed samples depend on the type of binder used. The washing and perspiration ranged from good to excellent for all printed samples. Slightly enhancement in K/S values of printed cotton fabric with increase the concentration of aliphatic polyurethane acrylate binders was noticed. The presence of 1% concentration of polyurethane acrylate binders (1-7) in the cotton pigment printing paste, and either UV curing or microwave cured for 3 min. could be considered as optimum conditions. Improved rubbing fastness results for all the printed samples using the synthesized polyurethane acrylate binders in printed paste and UV cured are noticed as compared to those obtained by the traditional thermal curing technique. The results show that these binders can be used safely in preparing printing paste for printing cotton fabrics using pigment dyes.