Which type of fiber is sensitive to sunlight and damages easily with prolonged exposure?

The correct answer identifies acrylic fibers as being sensitive to sunlight and prone to damage with prolonged exposure. Acrylic fibers are known for their bright colors and soft texture, making them popular in a variety of upholstery applications. However, they lack the same level of UV resistance that other synthetic fibers possess. This characteristic makes acrylic more susceptible to fading and degradation when exposed to direct sunlight over an extended period.

In contrast, polyester is generally more resistant to UV light, which makes it a better choice for outdoor applications. Olefin fibers are also known for their durability in outdoor settings, exhibiting excellent resistance to fading and mildew. Wool, while a natural protein fiber, can be relatively resilient but is typically more prone to damage from moisture and pests than from UV exposure specifically. Thus, the identification of acrylic as sensitive to sunlight aligns well with its known properties in the context of upholstery and fabric maintenance.