| abstract |
SYNTHETIC FIBERS-ESPECIALLY POLYESTER FIBERS, ARE DYED BY MEANS OF A REACTION PRODUCT OF A COMPOUND OF THE FORMULA A-R-B-R'' AND A COMPOUND OF THE FORMULA 1-(Y=),4-(X-N=)-C WHEREIN A IS AN AROMATIC NUCLEUS, B IS AN AROMATIC NUCLEUS OR A QUINOID RING, R IS -NH- OR -N=, R'' IS -OH OR =O, C IS A QUINOID RING, X IS A HALOGEN ATOM AND Y IS =O, =N-X,=N-OCCH3 OR PHENYL-SO2-N= THE DYED FIBERS, OF DARK SHADE, ARE OF EXCELLENT FASTNESS TO LIGHT, SUBLIMATION, WASHING AND DRY-CLEANING. |