Which type of backing structure is associated with "greige goods"?

The term "greige goods" refers to fabric that is in its raw state, having not yet undergone any finishing processes. This raw state is typically associated with the primary backing structure of carpet. The primary backing serves as the foundational layer of the carpet, providing initial stability and support for the tufts of yarn or fibers.

In the carpet manufacturing process, the primary backing is where the yarns are initially attached. This backing is crucial for the strength and integrity of the carpet as it is the layer that will ultimately hold the fibers in place. Greige goods, therefore, signify the state of the carpet before any additional treatment or finishing has been applied, making it appropriate to associate this term with primary backing structures.

Other backing types mentioned, such as secondary, reinforced, and completed backing, represent further stages or enhancements in the carpet production process but do not pertain specifically to the initial, untreated form of the material as "greige goods" does.