Textile Engineering · Weaving Technology
Which of the following statements accurately characterizes the fundamental structural deviation and specific mechanical execution required to construct a Leno weave?
- 1It necessitates the arrangement of interlacing points to allow floating yarns to slip and obscure parallel binding points, compressing fine yarns into a given space using multiple heald shafts.
- 2It intentionally disrupts the parallel orientation of warp ends by utilizing a doup attachment, compelling one yarn of a pair to cross over its counterpart within the same reed dent prior to weft insertion.✓
- 3It relies on a specialized mechanism to slacken yarns from an extra beam while the ground warp remains under tension, causing adjacent yarns to cross and form raised loops after successive filling insertions.
- 4It utilizes a patterned mechanical attachment with punched tapes to independently raise or lower heavy warp yarns, systematically floating them across groups of three or more parallel ground yarns.
Correct answer
It intentionally disrupts the parallel orientation of warp ends by utilizing a doup attachment, compelling one yarn of a pair to cross over its counterpart within the same reed dent prior to weft insertion.
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