| 摘要 |
Method for opening in a continuous operation fibres containing cellulose. In the method, fiberized raw material with a lignocellulose content is used as the source material, which is in the form of a fibre suspension containing a fibre network. The fibre suspension is transferred in a continuous operation to a pressurized chamber (2, 3, 4, 5), in which the fibre network is dispersed into individual fibres or possibly fibre bunches, by mixing the fibre suspension with a carrier gas. The mixture of carrier gas and fibres or fibre bunches is brought through a rapid pressure drop to a lower pressure, in order to open the fibres. The wall of the fibres to be opened is in a swollen state, the force produced from the effect of the pressure drop on the expanding component in the lumen of the fibres against the fibre wall opens the fibres in an axial direction. The opening of the fibres of the stock promotes the processability of the stock and has an advantageous effect on the properties of the fibres. |
