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Twill is a type of textile weave with a pattern of diagonal parallel ribs (in contrast with a satin and plain weave). This is done by passing the weft thread over one or more warp threads and then under two or more warp threads and so on, with a "step" or offset between rows to create the characteristic diagonal pattern. Because of this structure, twill generally drapes well. == Classification == Twill weaves can be classified from four points of view: * According to the way of construction *# Warp-way: 3/1 warp way twill, etc. *# Weft-way: 2/3 weft way twill, etc. * According to the direction of twill lines on the face of the fabric *# S – Twill or left-hand twill weave: 2/1 S, etc. *# Z – Twill or right hand twill weave: 3/2 Z, etc. * According to the face yarn (warp or weft) *# Warp face twill weave: 4/2 S, etc. *# Weft face twill weave: 1/3 Z, etc. *# Double face twill weave: 3/3 Z, etc. * According to the nature of the produced twill line *# Simple twill weave: ½ S, 3/1 Z etc. *# Expanded twill weave: 4/3 S, 3/2 Z, etc. *# Multiple twill weave: (2 3)/(3 1) S, etc. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「twill」の詳細全文を読む スポンサード リンク
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