تاثير آنزيم سلولاز در خمير چاپ، هنگام عمليات چاپ بر روي كالاي پنبه اي

In this research, from the combination of both burnt and burnished printing methods, a unique model is presented, in which both methods have been carried out biologically in an operational process at the same time. During printing on the cotton velvet cloth, cellulase enzyme was applied. Before printing, the samples were divided into two groups. The first group consisted of samples which were first printed and then dyed. The second group involved samples which were first dyed and then printed. The samples, after being printed with a printing paste containing cellulase enzyme, were conserved for 2, 4, 6 and 10 days and were then rinsed. Weight loss percentage and also cloth thickness decline due to cellulose hydrolysis were measured by means of cellulase enzyme. In order to study the effect of cellulase enzyme on the articleʹs color and brightness, reflexive spectrophotometry was conducted. The results indicated the removal of piles because of cellulose hydrolysis and, to some extent, the color of the article. The amount of color fading at printed points in the first group was more than that of the second group.