Organic if the textile consists of other material than synthetic fibres, which
is inorganic. Organic fibres provide nutrients for the mould spores.
Spores are caught in the textile fibres together with damp and dirt –which contains even more nutrients. Therefore the moulds establish it faster.
Constantly recurring mould is a problem as long as the spores and remainder of spores is left in the fibres. Sun blinds and textiles must be disinfected with Bensaltenside, which sterilizes the mould and the affections stops within a day. New affections are impossible.