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Waffle cloth , or sometimes honeycomb cloth , usually made of cotton or microfibre and woven in a way that makes it very absorbent. Waffle weaves also allow air to flow through the fabric so that it dries quickly. Waffle fabrics are made in various weights.
Waffle cloth is used to clean the surfaces in the industry. The fabric surface is textured rather like a cured waffle, so its name. This texture provides more surface area for absorption and cleaning than normal flat surfaces. It was woven with looms.
Source of the article : Wikipedia