摘要 |
A method of fabricating a sheet by papermaking, the sheet including at least one ply of a fiber substrate and at least one ribbon, wherein the ribbon is introduced in a fiber suspension of a vat former papermaking machine enabling the ply to be formed; or in direct contact with the vat former; or in contact with the already-formed ply; the point at which the ribbon is introduced being selected so as to create at least one region of increased thickness or of reduced thickness in the sheet in register with the ribbon, the reduced thickness being due to a reduction in the de-watering of the fiber suspension caused by the ribbon. |