低浓打浆的不足英文

Hunan Genda Fiber Science Mechanical Manufacturing Co.,Ltd. HOME >RESEARCH > DISADVANTAGE OF LC REFINING

Misunderstanding for Cardboard Paper Mills

After waste paper pulp is screened and cleaned, it doesn’t need to be refined any more.

Because of times of drying and  bonding procedures, waste paper fibers are very stiff.

The P and S1 layers have been completely damaged.  The fiber surface has been totally keratinized with no fibrillation. 

The above shows that the bonding strength between waste paper fiber is very bad! To refine the fiber is necessary!

Sometimes, high beating degree mean lots of short fines, it doesn’t mean good fibrillation.

The main function of  LC process is to cut off the fibers and increase the outer fibrillation. 

The above shows that the this kind of pulp cannot be treated by LC refining, but it doesn’t mean that it cannot be refined by HC refining.

The beating degree is very high now the pulp cannot be beated any more

Characteristics and Adverse Effect of Bamboo Pulp by Low Consistency Refining

Bamboo Pulp By Low Consistency Refining
To remove fiber bundles of uncooked pulp needs higher concentration, otherwise
can't reduce the paper dust degree effectively.
To solve the rough feel of the paper needs higher concentration beating, otherwise only increase
Softener dosage to improve paper feel.
Fibrillation and cutting can't get simultaneously.
The Adverse Effects
Poor  pulp drainability, impact speed. Low thickness, impact
production.
With 4% 5% concentration, difficult to reduce fiber wet weight, cause bad feel ;  
when with 2% 3% concentration, not fully keratinization, but beating degree is too high.
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