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W

WARP
The yarns that run vertically or lengthwise in woven goods.

WATER GAUGE
See INCHES OF WATER.

WEAR STRIP
Strip of fabric sewn onto the bag to allow for abrasion by another bag or a part of baghouse.

WEAVING
The process of forming a fabric on a loom by interlacing the warp (length-wise yarns) and the filling (cross-wise yarns) with each other.

WEIGHT
Normally indicated as the average weight per square yard of fabric. There is always a manufacturing tolerance on either side of this average weight which may range from 3% to 8% depending on the product. Example: A 16 oz. polyester felt has a weight tolerance of + 1 oz.

WET PROCESS DUST COLLECTOR
A dust collection system that sprays a water mist into the particulate-laden gas stream. The moisture increases particle weight and causes particulate agglomeration, allowing the dust to drop out and clean the air.

WOVEN
A fabric made on a loom by interlacing threads or yarns. Most often smooth and uniform in feel and appearance.