pH is the measure of acidity or alkalinity of a substance. On a scale of 0-14, 7 is neutral (neither acid nor alkaline). Lower than 7 is acidic (gives up a hydrogen atom when added to water) and...
Crepe effect appears in direction of the warp and achieved by alternate S and Z, or slack, tension, or different degrees of twist. Originally a wool crepe but now made of silk and rayon. It is much...
Usually caused by finishing. Woven filling yarns lien in an arc across fabric width: in knits the course lines lie in an arc across width of goods. Critical on stripes or patterns and not as...
An imperfection, characterized by a ridge or mark running in the crosswise or lengthwise directions of the fabric. Barrés can be caused by tension variations in the knitting process, poor quality...
Also called gassing, singeing is a process applied to both yarns and fabrics to produce an even surface by burning off projecting fibres, yarn ends, and fuzz. This is accomplished by passing the...