Method for preparing wood dissolving pulp by modifying true color unbleached wood pulp
A technology of dissolving pulp and natural color, applied in pulp beating/refining method, pulp dehydration, papermaking, etc., can solve the problems of poor quality, high production cost, long production cycle, etc., and achieve wide application, short process and long production cycle short effect
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Embodiment 1
[0021] Embodiment 1: produce filament wood pulp
[0022] Production process of filament wood pulp:
[0023] A. Wood pulp (board) is sent to the dehydrator for further dehydration in the machine after being disintegrated by the hydraulic pulper. After meeting the process requirements, it enters the double-screw roller refiner in the machine for further dehydration in the machine. After dehydration, add The liquid medicine should be mixed evenly, and its liquid ratio should be controlled.
[0024] B. The slurry is mixed evenly and the liquid ratio is well controlled, sent out from the discharge port, and sent to the digester by the conveyor.
[0025] C. After entering the digester, heat to continue cooking.
[0026] D. After the cooking is completed, the materials are discharged, and the processes of washing, bleaching, acid treatment, concentration, impurity removal, and copying are carried out.
[0027] Its process conditions are as follows:
[0028]Enter the hydraulic pul...
Embodiment 2
[0037] Embodiment 2: Production and preparation of short silk pulp
[0038] The process is:
[0039] A. Wood pulp (board) is sent to the dehydrator for further dehydration in the machine after being disintegrated by the hydraulic pulper. After meeting the process requirements, it enters the double-screw roller refiner in the machine for further dehydration in the machine. After dehydration, add The liquid medicine should be mixed evenly, and its liquid ratio should be controlled.
[0040] B. The slurry is mixed evenly and the liquid ratio is well controlled, sent out from the discharge port, and sent to the digester by the conveyor.
[0041] C. After entering the digester, heat to continue cooking.
[0042] D. After the cooking is completed, the materials are discharged, and the processes of washing, bleaching, acid treatment, concentration, impurity removal, and copying are carried out.
[0043] Its process conditions are as follows:
[0044] Enter the hydraulic pulper to...
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