Question

Among the following systems of drafting, the objective of which is to reduce the friction between adjacent warp ends?

• A. Point
• B. Sateen
• C. Herring-bone
• D. Reversed

Hint:

Sateen weaves have long floats, meaning fewer interlacements, and therefore less friction between adjacent warp yarns. This is what gives sateen its smooth, lustrous surface.

Answer 1

The Correct Option is B

Step 1: Understanding Weave Structures The question options refer to different weave structures, not drafting systems. Drafting in weaving is how the warp yarns are threaded through the heddles, and the weave structure is created through lifting. 
Point/Plain Weave: It is basic weave structure in which each warp yarn interlaced over and under each weft yarn. It has lot of interlacements. 
Sateen Weave: Sateen weaves are characterized by long floats of either warp or weft yarns on the fabric surface. This means that a warp yarn goes over multiple weft yarns before going under one, and vice-versa. This creates a smooth, lustrous surface with fewer interlacement points. Herringbone Weave: A variation of twill weave, characterized by a diagonal pattern, but it doesn't inherently minimize friction between warp ends. Reversed: This is a type of drafting, but not a weave structure, that could reduce friction. 
Step 2: Minimizing Friction: The key to minimizing friction between adjacent warp yarns is to reduce the number of interlacements. Sateen weaves, with their long floats, have the fewest interlacements, thus minimizing friction between warp yarns.