In fact, the reason why graphite is to wrap the edge of the graphite itself is conductive, though after the film is to achieve the insulation effect, but in cutting customer required size specifications are cut (die-cut) broken graphite edge will be out If the graphite powder particles in the use of electronic products in the internal heat conduction, in the course of the use of graphite particles if the particles out of the electronic components, will lead to short-circuit electronic components. After heat-sealing graphite flake edge will be better fit in the heat source, but also to prevent the drop of graphite fine powder particles.