Unit for cutting thin films of synthetic material

A system comprising a thin layer of synthetic material;

• and a unit for cutting said thin layer of synthetic material, said unit comprising on one hand a worktable for receiving said thin layer of synthetic material and on the other hand a cutting head including a shoe having a smooth bearing surface and a cutting member that projects from said smooth bearing surface, said smooth bearing surface being intended to be applied against said thin layer of synthetic material, while said shoe is moved substantially parallel to said worktable along predefined trajectories so that said cutting member can cut said thin layer of synthetic material;
• wherein said cutting member comprises a sonotrode and a transducer, said worktable comprises a non-slip coating having a static coefficient of friction in relation to said synthetic material, said smooth bearing surface has a dynamic coefficient of friction in relation to said synthetic material, said dynamic coefficient of friction is lower than said static coefficient of friction so as to be able to hold said layer of synthetic material in a fixed position against said worktable when said shoe is made to slide over said layer of synthetic material, and said smooth bearing surface is continuous.