| abstract |
The invention concerns non-woven flame-retarded textile fabric produced by stiffening a formed fabric without the use of a binder and characterized by the fact that the formed fabric in question contains cellulose fibres incorporating at least one phosphoric flame retardant compound. The formed fabric is stiffened preferably using water jets. The products according to the invention have excellent flame resistance and good tear resistance even with low weights per unit surface area. The cellulose fibres can be used on their own or mixed with other fibres, especially non-melting fibres which are resistant to high temperatures. Suitable flame-retardant phosphoric compounds are found in particular in the group including the esters, ester amides and/or amides of pyrophosphoric acid, monothiono-, dithiono- or trithiophosphoric acid, triphosphoric acid, monothiono-, dithiono-, trithiono- and/or pentathiotriphosphoric acid, or of bis-(2-oxo-1,3,2-dioxaphosphinanyl)-oxides, bis-(-2-thiono-1,3,2-dioxaphosphinanyl) oxides, or 2-oxo-1,3,2-dioxaphosphinanyl-2'-thiono-1',3',2'-dioxaphosphinanyl oxides. Bis-(5,5-dimethyl-2-thiono-1,3,2-dioxa-phosphinanyl) oxide is especially suitable. |