Painting/drawing canvas's enhanced frame substitute system for e.g. painter, has framework made of sheet material, and external smooth cover including external closed face stuck on top of flute and opened face covered with varnish

摘要

The system has a framework made of sheet material i.e. corrugated board material (1). A structure of the sheet material is constituted of small profiles of a flute (4), where the profiles are not lower than four millimeters. An external smooth cover (2) i.e. pure cellulose paper, has an external closed face (2-2) stuck on top of the flute, and an opened face (2-1) i.e. working surface for painting or drawing, constituting an external face of the board material, where the opened face is covered with varnish.