ON THE DURABLE FLAME RESIST FINISHING WITH THPC (TETRAXIS (HYDROXYMETYL) PHOSPHONIUM CHLORIDE) AND ITS PRECONDENSATE FOR POLYESTER COTTON BLENDED FABRICS
1979 Volume 35 Issue 3 Pages T131-T138
Details
1979 Volume 35 Issue 3 Pages T131-T138
Polyester cotton blended fabrics (E/C) were flame resistant-finished with THPC and its precondensates (THPC-PCD) by the pad-dry-cure process and the ammonia gas-cure process. The laundering durability of the flame resistance, the fixation percentage and retention % for laundering of the treated E/C were measured, and the following results were obtained.
Both fixation and retention % of THPC-PCD are higher than those of THPC monomer. THPC-PCD-II (synthesized from THPC, urea and melamine as shown Table 1) is more effective than THPC-PCD-1 (from THPC and urea). The fixation % of these flameretardants on E/C (65/35) is the highest when urea-methylolmelamine was used as a fixing agents. The fixing agents are in the order of fixing ability as, urea-methylolmelamine>urea>ammonia
The reaction mechanism of THPC-PCD in the fixing process was discussed on IR absorption spectra.
