| 摘要 |
In the nonwoven of the invention, the linen fibres are in a highly dissociated state and the binder consists of natural linen cements. The dynamometric strength index is of the order of 20 N/m.g. or higher. The main use is as a biodegradable horticultural mulch. Its manufacture consists of forming a fibrous lap from hackled flax by successive carding, matting, and possibly needling operations, subjecting the fibrous lap to the action of an aqueous solution for attacking and partially eliminating the natural linen cements, passing the treated lap, impregnated with the aqueous solution, between two pressure rolls at, for example, a pressure of 30 to 50 kg/m<2>, and drying the linen nonwoven thus obtained. |
