Acyldihydroxybenzenedisazo dyes for metallized polyolefins

Abstract From the Canadian patent

Disazo dyes of the general formula: are provided where A represents an optionally substituted benzene or naphthalene nucleus, D represents a benzene or naphthalene nucleus which is unsubstituted or mono or disubstituted with any of alkyl of 1-4 carbon atoms, alkoxy of 1-4 carbon atoms or halogen and X is alkyl of 1-4 carbon atoms benzyl or phenyl. The dyes when applied to metallized polyolefin fabrics particularly nickel-containing polypropylene fabrics produce, strong bright shades which are exceptionally fast to light dry, cleaning, crocking, gas and heat.