Seems like rayon requires a witches brew of chemicals in its production.
From Wikipedia:
Rayon is a
synthetic fiber, made from natural sources of regenerated
cellulose, such as wood and related agricultural products. It has the same molecular structure as cellulose. It is also called
Viscose. Many types and grades of viscose fibers and films exist. Some imitate the feel and texture of
natural fibers such as
silk,
wool,
cotton, and
linen. The types that resemble silk are often called
artificial silk.
The fibre is used to make textiles for clothing and other purposes. Rayon production involves
solubilizing cellulose to allow turning the fibers into required form. Three common ways to solubilize are the
Cupro process, not in use today, using
ammoniacal solutions of copper salts; the Viscose process, the most common today, using
alkali and
carbon sulfide; and the
Lyocell process, using
amine oxide. The last avoids the neurotoxic carbon sulfide of the viscose process but is also more expensive.
Back when I was still stocking up, I bought nearly a pallet of cotton bacon, so I'll be using that for the foreseeable future.
In the discussion above, I'm surprised no one has tried turkey bacon.