Acetate is an artificial fibre made from regenerated cellulose, which is usually derived from trees. It is a type of rayon and is usually used as a cheaper substitute for silk. It is not a very durable textile due to its low thermal stability and tendency to lose strength when wet, and thus should be avoided.
Biodegradable, very cheap, shinny, soft, drapes well, breathable, hypoallergenic
Not durable, sensitive to light, melts easily, builds up static
Although semi-synthetic fibres are made of renewable natural resources and are biodegradable, most of them are not considered very environmentally friendly due to their heavily polluting manufacturing process. Other concerns include causing deforestation, when woods are not sourced from environmentally responsible suppliers and are not sustainably harvested. However, still, they are considered more sustainable than conventional synthetic fibres.
More sustainable alternatives
Organic natural fibres, Tencel, EcoVero