twoorthreeporetypesarepresent ineachofthenine weaves. Theonly twoweaveswithonlyone typeof poresareplainweavewith100%ofpore typeNo. 1 andtwill 2/2with100%ofporetypeNo. 2.Samples wovenintwillweaves–excepttwill2/2–containthree typesofpores, but theonlytwillweave that contains poretypeNo.3isthebrokentwill2/2.Thiscanexplain why broken twill sample at fabrics density 29.3/15