Textile Engineering · Weaving Technology
Which of the following statements most accurately defines the specific operational mechanism that enables a Jacquard loom to produce large, intricate figured designs?
- 1It relies heavily on an expanded series of heald frames wherein each individual heald wire conforms strictly to the vertical movement of its corresponding shaft, raising and falling together.
- 2It manipulates parallel alignment by threading paired warp yarns through a specialized needle supported by two heddles, forcing them to cross before the filling is inserted.
- 3It incorporates a mechanical cam attachment that raises or lowers up to forty heald shafts through a specialized plastic tape with punched holes to generate geometric forms.
- 4It bypasses the use of conventional harness frames entirely, utilizing an overhead head mechanism that controls thousands of heald wires to lift warp yarns completely independently of one another.✓
Correct answer
It bypasses the use of conventional harness frames entirely, utilizing an overhead head mechanism that controls thousands of heald wires to lift warp yarns completely independently of one another.
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