DM12O 1st Edition Lecture 8 Outline of Last Lecture I Woven Fabrics Outline of Current Lecture II Plain weaves A Basket weaves III Twill weaves IV Broken twill weave V Satin Weave Current Lecture Plain Weave Simplest most used weave each warp yarn passes alternately over one and the under one filling yarns for the whole length of the fabric Firm construction wear well ravel less Offer a good background for printed and decorative designs More wrinkle Low tearing strength Weaves Filling yarns are thicker than warp yarns also called unbalanced fabrics ribbed fabricswarp ride and filling rid Basket Weave Two or more warp yarns interlace two or more filling yarns the groups of yarns interlace in plain weave sequence 2x2 most common decorative weave due to low durability easily shrink difficult to sew low shape stability End uses monks cloths hopsacking Twill Weave Left hand twill lines run upward to the left Right hand twill diagonals run upward to the right In a 2 1 twill each warp yarn passes over the filling yarns and then under the filling yarns Every warp yarn interlaces in the same order Each of one or more filling yarns high or one or more filling yarns lower These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute If one filling yarn is higher the weave 45 degrees right hand twill Broken Twill Weave Combine right and left hand twills chevron pattern Satin Weave Five shaft warp face satin weave Five shaft filing face satin weave Five shaft warp face satin weave on graph paper Five shaft filling face satin weave on graph paper Satin Weave Fabric Makes strongest fabric Most yarns per inch Fewest interlacing Special Fabric Weave Pile weave Dobby Pattern Design contains simple geometric forms Jacquard pattern design that contains detailed intricate motifs Clip spot pattern extra yarns interlace then float until pattern is repeated Major Concerns For Manufacturers Cost of raw materials Capital costs Costs of energy Opportunities in Weaving Industry Enhanced mill flexibility Quicker response to demand shifts Development of niche Joint ventures Increase productivity Improved ability to use new fiber yarns and finishes