What type of finish is often applied to linen and cotton fabrics to enhance their resistance to wrinkles?

The correct answer is crease resistance. This type of finish specifically targets the fabric’s ability to maintain a smooth appearance by reducing the propensity for wrinkles to form after washing or wearing. Linen and cotton, being natural fibers, are particularly prone to wrinkling; therefore, applying a crease-resistant finish helps to maintain their aesthetic appeal and functionality, making them more desirable for consumers seeking low-maintenance clothing options.

The other finishes mentioned, such as stain resistance, water resistance, and flame resistance, serve different purposes. Stain resistance helps fabrics repel spills and marks, water resistance protects against moisture, and flame resistance enhances safety against igniting. While these finishes can be beneficial in various contexts, they do not specifically address the issue of wrinkling in fabrics like cotton and linen, which is why crease resistance is the most appropriate choice for this question.