Q38: Match the Texturizing methods of yarns given in List-I with... - Textile and Apparel Quality Analysis - Apparel and Textiles Science- ICAR JRF/SRF 2024 | Agrigyan

• Match Yarn Texturizing Processes with Structural Effects:
• Knife edge texturizing $\longrightarrow$ (II) Spiral coil like: Filament yarn is drawn across a heated sharp metal edge, inducing asymmetric differential shrinkage that produces helical spring-like coils.
• Stuffer box crimping $\longrightarrow$ (IV) Saw tooth crimping: Filaments are rammed rapidly into a heated confined chamber, folding yarns into sharp zigzag/sawtooth crimps.
• Air jet texturizing $\longrightarrow$ (I) Loops and curls: Cold supersonic turbulent air jet blows filaments apart, forming randomly entangled surface loops without heat setting.
• Knit-de-knit texturizing $\longrightarrow$ (III) Very pronounced loop / crinkle structure: Filament yarn is knitted into a tight fabric tube, heat-set, and unraveled to impart crinkle crimp.
• Conclusion: (A) - (II), (B) - (IV), (C) - (I), (D) - (III) (Option 3).

Correct option: (3) (A) - (II), (B) - (IV), (C) - (1), (D) ~ (ttl)