Which drying method uses alternating layers of wood and absorbent blotting paper during drying?

Which drying method uses alternating layers of wood and absorbent blotting paper during drying?

• A. Air-drying
• B. Desiccant drying
• C. Pressing
• D. Freeze-drying

Answer: (C)

This method relies on using pressure with absorbent layers to pull moisture out of the material. By stacking alternating layers of wood and blotting paper and then applying weight or pressure, water is driven toward the surfaces where the blotting paper can wick it away. The blotting paper acts as a moisture-absorbing conduit, keeping the layers from sticking together and helping moisture move evenly from the interior to the exterior. This combination speeds up drying and reduces internal stress, compared with simply leaving the wood to dry in air. In contrast, air-drying relies on passive evaporation into the surrounding air; desiccant drying uses drying agents placed with the material to absorb moisture; and freeze-drying removes moisture by sublimation under vacuum at low temperatures—none of these use alternating layers with absorbent blotting paper and applied pressure in the same way.

This method relies on using pressure with absorbent layers to pull moisture out of the material. By stacking alternating layers of wood and blotting paper and then applying weight or pressure, water is driven toward the surfaces where the blotting paper can wick it away. The blotting paper acts as a moisture-absorbing conduit, keeping the layers from sticking together and helping moisture move evenly from the interior to the exterior. This combination speeds up drying and reduces internal stress, compared with simply leaving the wood to dry in air.

In contrast, air-drying relies on passive evaporation into the surrounding air; desiccant drying uses drying agents placed with the material to absorb moisture; and freeze-drying removes moisture by sublimation under vacuum at low temperatures—none of these use alternating layers with absorbent blotting paper and applied pressure in the same way.