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How the slub yarn is formed? 


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Slub yarn is formed through various methods as described in the research papers. The process involves simulating fiber arrangement in a slub strand, preventing cross-embedding among fibers, and twisting the slub strand into slub yarn using a roller-collet twisting model . Another method includes creating a slub yarn with a length and variable diameter structure, incorporating a wire core, flame-retardant fiber bundle, coating protection layer, and bamboo joint sections with different diameters . Additionally, a preparation method involves using heart yarn, decoration yarn, heat treatment, false twisting, and sizing to create functional two-color slub yarn with controllable bamboo joint characteristics . Furthermore, a production process of regenerated polyester slub yarn includes compounding yarn, heating treatment, cooling, twisting, and finishing processes . These methods result in the production of unique and visually appealing slub yarn varieties.

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The slub yarn is formed by compounding regenerated polyester yarns, heating, cooling, twisting, shaping, oiling, and winding processes, resulting in the production of attractive and high-performance polyester slub DTY.
The slub yarn with length and variable diameter structure is formed by combining a wire core, flame-retardant fiber bundle, coating protection layer, and bamboo joint sections with varying diameters.
The slub yarn is formed by feeding heart and decoration yarns through rollers, heat treatment, false twisting, sizing, and winding, creating two-color fancy yarn with controlled characteristics.
Slub yarn is formed by simulating fiber arrangement in slub strands, followed by twisting using a roller-collet twisting model in ABAQUS software, replicating real slub yarn appearance.

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