| 摘要 |
<p>1280858 Dyeing polyesters BADISCHE ANILIN-& SODA-FABRIK AG 19 Nov 1969 [20 Nov 1968] 56625/69 Heading D1B [Also in Division C4] Polyesters are dyed with azlactone dyestuffs of the general formula: wherein R is H, Cl, Br, methyl, ethyl, methoxy or ethoxy; R<SP>1</SP> is H, Cl, methyl or methoxy, and R<SP>2</SP> is H, Cl, Br, methyl, ethyl, methoxy or ethoxy. High temperature and thermosol methods may be used and mixtures of dyes may be used at about 100‹C in the presence of carriers. Green-, red- and brown-yellow shades are obtained.</p> |
