What process involves dyeing yarn before it is woven into fabric?

Yarn dyeing is the correct process that involves dyeing yarn before it is woven into fabric. This method allows for precise color application and can create complex patterns, such as stripes or plaids, directly in the yarn before it undergoes the weaving process. The benefit of yarn dyeing is that it allows the fibers to absorb the dye more uniformly and intensely, resulting in vibrant colors and increased colorfastness when the final fabric is created.

In comparison, fabric dyeing typically occurs after the fabric has been woven, which means that the dyeing process affects the entire piece of fabric at once. Piece dyeing also follows this same principle, where an entire length of fabric is dyed after it has been manufactured. Woven dyeing is not a standard term in textile practices and isn't recognized as a specific dyeing process. Thus, yarn dyeing stands out as the correct answer as it uniquely pertains to the dyeing of yarn prior to weaving.