Carpet Fiber Identification & Construction Flashcards
7 cards from real CCT practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Carpet Fiber Identification & Construction flashcards as text
Which fiber is most prone to 'wicking' (browning that reappears after cleaning) due to its absorbent nature?
Answer: Jute or cotton backing fiber
Jute and cotton backings absorb soil and moisture, which can wick up through the pile as the carpet dries, causing browning or re-soiling at the surface.
What is the function of antimicrobial treatments applied to carpet fiber during manufacturing?
Answer: To inhibit the growth of mold, mildew, and bacteria within the carpet
Antimicrobial treatments (e.g., Microban) are bonded to fibers to slow or prevent microbial growth, reducing odors and potential health hazards.
A 'cut and loop' carpet construction creates its pattern by:
Answer: Combining areas of cut pile tufts and uncut loop pile tufts at different heights
Cut-and-loop carpet achieves texture and pattern by combining cut pile (open tops) and loop pile (closed loops) in the same surface, creating geometric or sculptural designs.
When identifying an unknown carpet fiber using chemical solubility, which solvent dissolves nylon but not polyester?
Answer: Formic acid or phenol
Formic acid (and concentrated phenol) dissolves nylon while leaving polyester largely unaffected, making it a reliable laboratory chemical differentiation test.
Which term describes the number of yarn ends (pile yarns) per inch across the width of a tufted carpet?
Answer: Gauge
Gauge refers to the spacing of needles across the tufting machine width, expressed as the number of needles per inch, determining how many yarn ends appear across the carpet.
What is 'staple fiber' yarn in carpet construction, and what issue is it most associated with?
Answer: Short lengths of fiber spun and twisted into yarn; associated with shedding and fuzzing
Staple fiber consists of short fiber lengths that are spun together into yarn; the loose fiber ends can work free under traffic, causing shedding and fuzzing, especially when new.
A technician finds a carpet where bleach spotting causes no color change. This indicates the carpet is most likely:
Answer: Solution-dyed polypropylene or solution-dyed nylon
Solution-dyed fibers have color molecules locked inside the fiber polymer chain during extrusion, making them immune to bleach and oxidizing agents.