发明授权
US4201713A Naphthostyril dyestuffs 失效
萘吡啶染料

Naphthostyril dyestuffs
摘要:
The subject of the invention are dyestuffs of the formula ##STR1## wherein R is hydrogen or a hydrocarbon radicalQ is arylX is .dbd.C(W) -- or .dbd.N--,W is a nitrile ester or amide groups andA represents the remaining members of a heterocyclic radical.The dyestuffs are preferably suitable for dyeing polyester fibres which are dyed in orange, red, violet or bluish shades with good fastness to light.
公开/授权文献
信息查询
0/0