Textile Engineering · Textile Technology
Which of the following statements accurately defines the specific technological process of 'melt spinning' utilized in the manufacturing of synthetic fibers such as nylon?
- 1Raw multifilament strands are combined, twisted into heavier threads, and subsequently boiled with soap and water to remove the protective natural gum.
- 2Harvested plant stalks are soaked in water to break down pectin and then crushed to separate the inner fibrous material from the woody outer stem.
- 3Solid polymer chips or pellets are melted and extruded through a spinneret into cool air, where the extruded filaments rapidly solidify to provide strength and fineness.✓
- 4Raw cellulose is treated with strong alkali and carbon disulfide to form a thick solution, which is then forced through a spinneret into an acid bath to regenerate into fibers.
Correct answer
Solid polymer chips or pellets are melted and extruded through a spinneret into cool air, where the extruded filaments rapidly solidify to provide strength and fineness.
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