Low-formaldehyde flame retardant and soft finish of cotton fabric
Low-formaldehyde softening and flame retardant finish of cotton fabric are carried out with cross-linking agent PBT-CA, CP flame retardant and epoxy silicone in one bath. The optimum process is determined via single factor experiment as follows: flame retardant CP 400 g/L, PBTCA 80 g/L, epoxy silicone 30 g/L, sulphuric acid 0.75% , adjusting pH value with mo-noethanolamine, and curing at 160 ℃ for 4 min. The finished cotton fabric has good flame retardancy with damaged length of 8.2 cm, afterflame time and afterglow time of 0, improved softness, slightly decreased whiteness and tensile strength, and lower formaldehyde residual of 87.2 mg/kg compared with conventional CP flame retardant finish.
fire proofing finishfire proofing agentsoftenerone bath methodcotton fabric