▎ 摘　　要

NOVELTY - providing printing on a plastic film uniformly printed graphene comprises printing ink by printing ink pipe, pipe, printing ink pipe comprises the graphene for printing ink pipe body for transporting and printing ink. printing ink pipe body the middle of one side of the outer cylindrical surface is formed through cutting flow ink groove, ink flow groove edge is flat and forms a cutting notch edge, flow ink groove and the other side to form the graphene outflow edge printing ink flow for printing of, printing ink flow below cutting notch while, graphene directly printed on the plastic film from a lower edge printing ink flow. to avoid the problem of hole blocking, uneven printing and printing quality of existing printing ink pipe flowing through hole caused by low; the printing ink flow is gradually reduced from the two ends to the middle to convenient for graphene printed out symmetrical arc edge structure forming a continuous curtain, this kind of symmetrical arc-shaped edge structure when graphene flows can form a continuous curtain to ensure printing the uniform graphene layer on the plastic film, improve the printing quality.