Carlson has developed a range of support sheets for the retention of filter aid which has been applied both as a pre-coat and as a body feed to the main unfiltered product.
Specially designed for this type of application, these sheets incorporate a number of important features:
Because these support sheets are manufactured from pure cellulose incorporating carefully chosen wet strength resins within the cellulose matrix, the sheet has a high wet strength and is very durable. This allows the sheets to be used time and time again, so minimising costs.
The pore size distribution of the sheet is carefully controlled so that there is an even build up of the filter cake on the sheet. This ensures that filter capacity is maximised and that there is minimum risk of bleed through even the finest of fines, whilst minimising the pressure drop through the filter.
They are very tolerant of pressure transients during the filtration cycle because the formulation used in their manufacture, coupled with the manufacturing process, produces an extremely durable yet flexible sheet.
