Process for dyeing linear polyamides in the melt

A process for dyeing linear polyamides in the melt in which the dyeing is effected by means of a dye salt of a 1:2 chromium complex of a monoazo dye and an amine, having the formula ##STR8## wherein A, A' represents identical or different radicals of azo dyes, which radicals are bound to the Cr atom after 2 protons have been split off by the formation of 2 rings,

• X represents a --COO or --SO.sub.3 group not bound to the Cr atom,
• R.sub.1 represents an alkyl or alkylene group having 1-18 C atoms, a cycloalkyl or cycloalkylene group having 5-6 C atoms, or a phenyl or phenylene group, or said group substituted by halogen atoms or by alkyl group having 1-6 C atoms,
• R.sub.3 represents an H atom, an alkyl or alkylene group having 1-18 C atoms, or a cycloalkyl group having 5-6 C atoms,
• R.sub.2, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 represent hydrogen, alkyl having 1 to 18 C atoms or cycloalkyl having 5 to 6 C atoms,
• m and t represent the numbers 1-3, r=m-1,
• p and q represent 0 or 1, where if R.sub.3 represents a hydrogen atom, q=0;
• and t=p+q+1.