Seams are often the most sensitive part of a dryer fabric. In general, dryer fabrics are woven flat and seamed later to form an endless belt. The seam consists of formed loops or inserted coils at the two ends of the fabrics which later on are connected together. This spiral is either a monofilament wire. Today, use of one spiral seam is common. The diameter of the spiral wire depends on the channel size formed by the loops.

The major requirements of seams are good tensile strength, wear resistance and nonmoving surface. The seam tensile strength, which is usually lower than that of the polyester fabric, can be increased by proper selection of yarn profiles, yarn materials, and seam construction. If the thickness of the seam is made identical to the polyester fabric. Press-making can be avoided. Wet-making can be avoided if the permeability of the seam and loops/coils are identical with the fabric permeability. The nonmoving will be reached by using a suitable yarn profile and seam construction.

Dryer fabric manufacturers have developed various devices for joining seams. Mainly these devices remove the tension of the seam so that loops/coils can build a channel for an easy inserting of the wire.

Anna
Sales Department
Hebei Defeng Polyester Fiber Co., Ltd
Add: Jingjiu Railway west, wugong town, Raoyang County
TEL: 86-311-67699480
FAX: 86-311-67699480
Website: www.china-polyestermesh.com.
E-mail:anna@china-polyestermesh.com

Tag: dryer fabric, polyester fabric