Fabric Brushing or Surface Raising
Some fabrics like velvet have a naturally raised (fuzzy) surface and this is referred to as the nap. The term nap is also used to describe other surfaces that look like the surface of a napped cloth. In the finishing process of manufacturing textiles, after the cloth is woven, it goes through processes such as washing, fulling, raising, and trimming the nap. There are several ways to ‘raise the nap’, most of which involve wire brushes such as raising cards and involved special brushing machines to get the best finish. During raising, the fabric surface is treated with sharp teeth to lift the surface fibres, thereby imparting hairiness, softness and warmth. Flannelette is a well-known example of this type of material. Gateway finishers are specialists in this process.
The benefits of Brushing / Raising Fabric
Fabric brushing or surface raising is an effective way to increase the ability of the fabric to retain heat or provide a thermal barrier. This process is very cost effective and can remove the need to buy more expensive materials to achieve the same tog rating. Gateway are able to offer you a commission brushing / raising service and would be happy to discuss your projects in confidence. Please call Howard on 0115 975 7581
The ability of a fabric to retain heat is indicated by the tog value. The British “T0G” value is the standard measurement of the thermal effectiveness of a fabric (how well it keeps you warm). The higher the number then the more warmth that material will retain.
While most people will be familiar with a tog rating for their duvet they may not be as familiar with a tog rating for the fabric used to manufacture their clothing.
The tog value measurement is carefully controlled and described in a British Standard (BS5335:1991).