Heavy metal-containing monoazo dyes

A dyestuff which in the form of its free acid, corresponds to the formula ##STR121## wherein W=a direct bond or a bridge member to a C atom of the naphthalene nucleus C or the benzene nucleus A, wherein the bridge member is ##STR122## wherein R=H or C.sub.1 -C.sub.4 -alkyl,

• Alkylene=C.sub.2 -C.sub.5 -alkylene and
• Arylene=unsubstituted or substituted phenylene, R.sub.1, R.sub.2 and R.sub.3 =H--, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, hydroxyl, halogen, carboxyl, sulphonamido, nitro, arylcarbonylamino, --SO.sub.3 H, --SO.sub.2 --CH.dbd.CH.sub.2 or --SO.sub.2 --CH.sub.2 --CH.sub.2 --Z,
• wherein
• Z=--OSO.sub.3 H, --SSO.sub.3 H, --OPO.sub.3 .sub.2, --OCOC.sub.6 H.sub.5, --OCOCH.sub.3, dialkylamino, or quaternary ammonium,
• R.sub.4 =H or C.sub.1 -C.sub.4 -alkyl which is substituted or substituted by C.sub.1 -C.sub.4 -alkoxy, --OSO.sub.3 H, --SO.sub.3 H, --COOH or hydroxyl,
• X.dbd.a fibre-reactive radical selected from the group consisting of 2,4-dichlorotriazin-6-yl, monochlorotriazinyl, monofluorotriazinyl, trihalogenopyrimidiyl, monohalogenopyrimidinyl, dihalogenopyrimidinyl, vinylsulphonyl and SO.sub.2 CH.sub.2 --CH.sub.2 Z,
• p=1 or 2,
• q=0 or 1,
• 1. m and n=0 or 1,
• k=1 or 2 and
• Me=Cu.