Warp-Faced and Weft-Faced Twill Constructions
topic
Warp-faced twills with notation 2/1 or 3/1 show predominantly warp yarn on the fabric face, with the warp covering 67 to 75 percent of the face surface creating the characteristic warp-dominant character of denim and gabardine fabrics where warp yarn colour and lustre dominate, while weft-faced twills with notation 1/2 or 1/3 expose weft yarn on the face, with equal twill using 2/2 notation creating balanced diagonal presentation where warp and weft contribute equally to both faces.
Role
Determines the visual character and surface properties of twill fabrics through the face balance between warp and weft exposure, with warp-faced twill construction enabling denim production where warp yarn is dyed indigo and weft is undyed so the blue face characteristic of denim comes from warp dominance, and with weft-faced constructions being used where weft yarn quality or colour is to be featured on the fabric face.