Dyeing or printing synthetic linear polyamide textile materials

    公开(公告)号:GB1106209A

    公开(公告)日:1968-03-13

    申请号:GB3001565

    申请日:1965-07-15

    Applicant: BASF AG

    Abstract: Polyamides, e.g. polycaprolactam and polyhexamethylene diamine adipate are dyed, preferably at 90 DEG to 100 DEG C in weakly alkaline to strong acid conditions in presence of conventional dyeing assistants, using finely divided dispersions of dyes of the general formula wherein R is a substituted or unsubstituted aliphatic or cycloaliphatic radical and B is a radical of a coupling component of the benzene series, e.g. anilines or phenols, the diazo component being derived from a 3 or 4 aminophthalimide. The terms "aliphatic" or "cycloaliphatic radical" include radicals containing other elements besides carbon and hydrogen, e.g. sulphur, nitrogen and oxygen and the radicals R may also contain quaternary ammonium, aromatic, halogen, cyano, carboxylic acid and ester groups, alkoxy, hydroxy, acetyl, benzoyl carbonoyl and sulphonamide groups. R preferably has 1 to 6 carbon atoms. The textiles may be in the form of fibres, flocks, filaments, threads woven fabrics and knitted fabrics.

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