| Factor | The value of the factor | ||
|---|---|---|---|
| Sizing | |||
| Paraffin emulsion (%) | 8–10 | ||
| Aqueous solution of sulfuric acid | 4–4.2 | ||
| Felting and shaping of the carpet | |||
| Concentration of wood fiber in the total mass (%) | 1.5 | ||
| Carpet temperature (°C) | 48 | ||
| Acidity in the pressure box (pH) | 4.2 | ||
| Carpet humidity (%) | 76 | ||
| Pressing modes | |||
| Mode | Spin | Drying | Tempering |
| Duration (sec) | 90 | 300 | 40 |
| Pressure (MPa) | 29 | 70 | 24 |
| Temperature (°C) | 190 | ||