| abstract |
The use of a lyocell fiber in a product comprising a non-woven substrate and a liquid containing a compound with a quaternary ammonium salt, wherein said lyocell fiber is contained in said non-woven substrate, characterized in that said fiber of lyocell contains an essentially water-insoluble salt incorporated into said fiber in an amount of from 1% by weight to 10% by weight, based on the weight of the dry fiber, wherein said salt has a solubility in water of less than 15 ° C to 25 ° C of 5 g / l or less, such as 3 g / l or less, 1 g / l or less, preferably less than 0.1 g / l, and wherein said salt is soluble under acidic conditions. |