Which treatment is listed for the back of Quilted Fabric #106?

• A. Optically brightened
• B. Bleached
• C. Printed
• D. Colorfast

Answer: (A)

The main idea here is understanding what it means for fabric to be optically brightened. Optically brightened fabric has fluorescent whitening agents added, which absorb ultraviolet light and emit blue light. This makes the material appear whiter and brighter under typical lighting. When the back of Quilted Fabric #106 is described this way, it means the reverse side has been treated to boost brightness, helping the overall appearance of the quilt and making the back easier to see when sewing or inspecting.

Bleached would mean removing color chemically, which isn’t what’s specified here for the back. Printed would indicate a design or pattern applied to the surface, not a brightness treatment. Colorfast refers to how well the dyes resist fading, which is a dye/performance property rather than a finish applied specifically to brighten the fabric back. So optically brightened is the appropriate description for the back.