Adjustable roller for positioning of plastics, comprises a flexible synthetic material layer having juxtaposition of annular edges

摘要

The annular edges are surrounded by a ring and a thin rigid ring is coupled with the principal ring. The ring having a thickness lower than the annular edges. The synthetic material having the shore hardness A is 40-60. The intermediate layer comprises a conduit, which is covered by synthetic material protecting layer with a hardness higher than the intermediate layer and the another layer of a rigid material includes a module of elasticity, which is greater than 10 GPa. Independent claims are included for: (1) a process; and (2) a graining method using the above roller.