Final answer:
The fabric with horizontal weft slubs imitating shantung silk on one side and a satin weave on the other is slub satin. Slub satin combines the texture of shantung with the sheen of satin, reflecting the historic art of silk weaving and the industrial evolution of fabric production.
Step-by-step explanation:
The fabric that has horizontal (weft) slubs that imitate spun shantung silk evident on one side with a satin weave on the other is known as d) Slub satin. This type of fabric incorporates the texture of shantung silk with the lustrous finish of satin, resulting in a material that has a distinctive and elegant appearance. Historically, silk weaving in China is a process that dates back over 4,000 years, with silk being a major trade commodity along the Silk Road. The production of such fabrics has evolved from manual labor on small looms to large-scale industrial manufacturing during the industrial revolution, yet the essence of traditional weaving and textures like those found in slub satin has been preserved in various textiles around the world.