Neutral Size Rosin can size paper in neutral conditions and facilitates the use of calcium carbonate as filler, thereby improving optical properties. Loss in brightness associated with acid sizing is efficiently controlled by Neutral Size Rosin.
LGS-P-NS20 is effectivesize for pulp stock in ph range 5.5 to 6 with Poly aluminium chloride (PAC)/alum as fixing agent.
LGS-P-NS20 is effective where water hardness is>100ppm. And suitable for fast sizing on high speed machine.
Advantages of neutral size over acid size :
- Reduction in corrosion scaling/deposition.
- Use of 15 to 20% calcium carbonate as filler.
- Increased production due to smooth paper m/c run In absence of foam
- Shade variation is drastically reduced.
- Stronger, longer lasting sheet, improved brightness & printability.