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Nonwovens
Nonwovens - Chemical Bonded
Nonwovens - Composites
Nonwovens - Thermal Bonded
Nonwovens - Thru-air Bonded
Nonwovens - Airlaid
Nonwovens - Carded
Nonwovens - Co-Form
Nonwovens - Lamination
Nonwovens - Meltblown
Nonwovens - Needlepunch
Nonwovens - Slitting
Nonwovens - Spunbond and SMS
Nonwovens - Spunlace / Hydroentangled
Nonwovens - Wetform
Nonwovens - Fiberglass Material
Fiberglass Material
Wet laying is similar to paper production processes, and leaves the strands oriented in random directions. This leads to a similar strength across all direction of the fabric, but the random nature can lead to surface defects which may not be corrected through rolling.
The process involves a dilute slurry of water and fibers being deposited onto a moving wire screen. This is drained to form a web, which is further dewatered, pressed between rollers and then dried. Binding agents are often added at a later stage of the process to improve cohesion.
Fiberglass strands are among the most used components for wet laid applications. However, they do not disperse well in water, presenting challenges which can lead to poor uniformity and weak inter-fiber bonding. While process improvements can solve these issues, monitoring for defects is still very important.
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