METHOD OF MAKING A BARK BOARD Russian patent published in 2024 - IPC B27N3/04 

FIELD: various technological processes.

SUBSTANCE: invention relates to production of compacted board materials from coniferous wood raw material debarking wastes without binding substances for construction, furniture and woodworking industries as a finishing and structural finishing material. Method of making bark board includes cavitation treatment with 25–35 cycles of wood raw material in hydrodynamic disperser, hot pressing. At that, wood raw material used is coniferous wood debarking wastes, which before cavitation treatment are crushed to fraction of 2–5 mm and subjected to preliminary soaking in water with temperature of 20±2 °C for 120–180 minutes.

EFFECT: improved physical and mechanical properties of environmentally friendly water-resistant board materials, reduced power consumption of the hydrodynamic treatment process.

1 cl, 2 tbl