FINISHING ON COTTON FABRICS WITH DIMETHYLOL DrnYDROXY ETHYLENEUREA AND DIALKOXY ETHYLENE UREA. Resin finishing to improve the crease resistance of cotton fabrics has beencarried out very often in the textile process, then it is reasonable to use the resin with euco-friendly properties and low freeformaldehyde content during storaging, as well as fulfilling the euco-Iabelling requirement for business commodity in the globalmarket. Dimethylol dihydroxy ethylene urea (DMDHEU) resin has been chosen favorably as crease resistant resin, for havinggood reactivity to cellulose fiber producing good crease recovery. However, resin finishing with DMDHEU has producedreasonable high free formaldehyde, then dialkoxy dihydroxy ethylene urea (DADHEU) was also examined in this researchactivity, as it is produced from modified DMDHEU which replaced methylol group into alkoxy group hoping to be more stableto hydrolysis, reducing the possibility of loosing free formaldehyde in the storaging. As both resins have been considered asthermosetting type, then the curing process has influenced a great deal to its polymerization reactions. The crease resistantfinishing process was carried out by means of varying the curing temperature from 110°C -160 °C with 10°C ranges. Analysisofthermogram from DSC (differential scanning calorimeter) f(irDMDHEU and DADHEU samples has shown the respectedmelting points at 120°C and 130°C, and having the polymerization temperatures at 140°Cand 150°C.Those results have beensupported by the verification of the finished cotton fabrics, demonstrating that the optimum crease recovery angles wasproduced by the fabric with the curing process at 140 °C -150 °C. The breaking strength and its elongation tend to decrease byincreasing curing temperatures. The testing results of loosing free formaldehyde to the finished fabrics cured at optimumtemperatures were 82 ppm from DMDHEU and 5 ppm from DADHEU.Kata kunci : Anti kusut, Bahan tekstiI, Eko-Iabel, DMDHEU, DADDHEU, Suhu pemanas-awetan, Sudut kusut optimum,Kekuatan tarik, Kekuatan mulur. Okay Rukaesih; Balai Besar Litbang Industri TekstilJI. A. Yani 390 Bandung40281 E-mail: texird@bdg.centrin.id
