OPTIMIZING CURING CONDITIONS IN FLAME RETARDANT TREATMENT FOR COTTON FABRIC

Abstract

The study of the influence of curing conditions on the properties of the cotton fabric treated with Pyrovatex CP New (PR) and Knittex FFRC was carried out with 10 experiments. The central composite designs type face centered (CCF) was used to design experiments. In these experiments, the curing temperature was varied from 160o C to 180o C and the curing time from 60-120 seconds. The chemical uptake rate, vertical flammability characteristics, LOI value, tensile strength of the untreated and treated samples were determined. Based on the results, 5 response models between the determined properties of the treated fabric and two studied variables were found. From these models, the optimal curing temperature and time were found with the highest fire resistance efficiency and minimum loss for the mechanical properties. They are 180o C and 113.7 seconds