The subject of the present invention is a novel process for the preparation of N-2-n-butyl-3-{4-propoxybenzoyl}-1-benzofuran-5-ylmethanesulfonamide of formula I:and the new intermediates of the preparation process. The sleeve includes both monofilament and multifilament yarns woven in both warp and fill directions. A method includes drawing a substrate through a meniscus at a declination to uniformly deposit spheres on the substrate.