INFLUENCE OF THE AMOUNT OF THE BTCA ON THE EFFECTIVENESS CROSSLINKING

Abstract

Cellulosic textiles mainly cotton fibers, are finished in order to improve their properties, dimensional stability and crease resistance play a considerably important role. These properties can be satisfactory achieved by cross-linking agents, which react with hydroxyl groups of cellulose fibers. Esterification between polycarboxylic acids and cotton cellulosic has been investigated since long ago. Over the past few years, there has been an attention on application of nanoparticles with cross-linking agents to impart other properties to the fabric, such as antimicrobial, flame retardant, water repellency or UV protective. The present study is aimed at imparting polyfunctional finishes on cotton fabrics using polycarboxylic acids (PCAs) which are able to crosslinking with cellulose. 1,2,3,4-butane tetra carboxylic acid (BTCA) have been selected and applied using different concentration on 100% cotton fabrics using pad-dry-cure process. This work is focused on studying the influence of the BTCA concentration on the wrinkle recovery and flexural rigidity behavior. We studied the modification, the wrinkle recovery angle and flexural rigidity. The results of each sample have been compared with the results of the untreated fabric and, as expected, it could be observed differences in behaviour depending on the concentration used. Results from instrumental techniques, showed that the treated sample with 80 g/L BTCA and 40 g/L NaH2PO2 is the best effectiveness of all treated fabrics.

Keywords

• cotton
• BTCA
• crosslinking agents
• flexural rigidity
• wrikle recovery