Covering type polyimide film material and preparation method thereof

The invention discloses a covering type polyimide film material and a preparation method thereof, and the covering type polyimide film material is obtained by coating a polyimide film with covering ink and then heating and curing, the covering ink comprises polyester resin, epoxy resin, butanone, ethyl acetate, carbon black, a silane coupling agent, polyamide wax slurry, a dispersing agent, a flatting agent and a curing agent. The carbon black is a component for conventional black ink and can provide an excellent covering power effect for the ink, the blackness and tinting strength of a film coating are improved, and the combination of the organic components and the carbon black can make the grinding and dispersing process easier. According to the covering type polyimide film material disclosed by the invention, a coating is well attached to a base material, the covering type polyimide film material has the conventional advantage of covering ink, and particularly, the solvent resistance of the existing ink is