Forming fabric 2.5 layer

2.5 layer forming fabrics are also known as double layer extra design. Extra support double layer forming fabrics are an extension of double layer fabric developments. Addition of extra strands on forming side enhance fiber support and fines retention. Improved paper surface is obtained without compromising stability and life potential.

2.5 layer forming fabric side 350
Commonly known as 2.5-layer forming fabric, extra support double layer forming fabrics are to further improve the characteristics of double-layer design. It's a standard double layer forming fabric with an additional weft yarn on the sheet side of the fabric. There is an improvement in sheet formation, smoothness, reduction of wire mark and better cleaning of the showers. Extra support double layer forming fabrics are commonly used in newsprint and fine papers production or in applications that use very short fibers.

2.5 layer forming fabrics can be woven in 8, 16 or 24 shaft patterns. The weave design offers a uniform distribution of fibers and provides outstanding drainage capacity as a result of high top surface open area. The large diameter of weft yarns and long crimp on machine side provides excellent wear resistance and runability. The 2.5 layer forming fabric has the features of excellent fiber support, sheet formation and high drainage.

Benefits,
High fiber support and drainage.
Double MD yarn lock on machine side which withstands high MD loads and resists CD ridging.
Increased weft yarn diameter on machine side and long CD crimp provides better life time.
Excellent fiber distribution.
Easy to release the sheets.

Params
Type Warp mesh Weft count Warp dia Weft dia Air permeability FSI DI

2B6408

71.5-72.5 67.5-68.5 0.15 0.18 0.12/0.22 0.22 275 155 25.7
71.5-72.5 65.5-66.5 0.15 0.18 0.12/0.22 0.22 290 152 26.3
71.5-72.5 56.5-57.5 0.15 0.18 0.12/0.22 0.22 370 135 29.0
71.5-72.5 47.5-48.5 0.15 0.18 0.12/0.22 0.22 500 119 33.0

2B5616

62.5-63.5 60.5-61.5 0.17 0.20 0.13/0.30 0.30 285 139 23.9
62.5-63.5 59.5-60.5 0.17 0.20 0.13/0.35 0.35 250 137 20.6
62.5-63.5 53.5-54.5 0.17 0.20 0.13/0.35 0.35 320 126 23.7
62.5-63.5 47.5-48.5 0.17 0.20 0.13/0.35 0.35 380 115 25.1

2B4216

47.0-48.0 47.0-48.0 0.22 0.22 0.13/0.35 0.35 380 107 25.1
47.0-48.0 40.0-41.0 0.22 0.25 0.17/0.40 0.40 445 94 25.1

2B3616

40.5-41.5 38.5-39.5 0.26 0.30 0.20/0.50 0.50 350 89 18.8
40.5-41.5 36.5-37.5 0.26 0.30 0.20/0.50 0.50 400 85 20.4
40.5-41.5 34.5-35.5 0.26 0.30 0.20/0.50 0.50 445 82 21.4