A sheet of paper begins in the forming section, where a mixture of 99% water and 1% cellulose fiber is introduced evenly across a forming screen/fabric, which acts as both a sheet conveyor and a dewatering device.

It is here that the paper sheet is formed and the initial water removal occurs. As the fabric moves, water drains through it, while the fibers and fillers that form the sheet remain on top. Today, forming fabrics have an average operating life of 45 to 60 days.

Paper machine forming screens/fabrics are designed to retain as much fiber and other furnish components as possible while allowing water to drain through them as quickly as possible.

These fabrics are typically produced from monofilament strands or yarns that are woven together in a pattern that can be classified by their fabric style (or weave); mesh, count, and diameter; surface topography; and air permeability.

According to the weaving, paper making fabrics can be divided into:

• 4-shed single layer fabrics (used in making culture paper, printing paper and packing paper)
• 5-shed single layer fabrics (used in making printed toilet paper, culture paper and packing paper)
• 8-shed single layer fabrics (mainly used to making bag paper, kraft paper, sheet lined board, corrugated paper and cardboard paper)
• 7-shed double layer fabrics
• 8-shed double layer fabrics
• 8-shed double and a half layer fabrics
• 16-shed double and a half layer fabrics

• Long service life, wear resistance, the net loss is low
• High fatigue resistance, acid, weak alkali resistance
• The mesh mark light, forming quality is good
• Light weight, easy to transport, set net easy operation

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