threads 62 from a source 64 the machine 60 stitches into the carrier web 12 parallel rows of stitches which are spaced have stitch lengths along the rows and produce loops 14 in the pattern shown and described with reference to fig1 the stitched carrier web 12 is then coated on its side opposite the loops 14 by an extender 66 to form the layer of adhesive 20 and provide a backing structure 68 subsequently after the backing structure 68 has been dried and slit to a desired width which steps have not been shown but which are schematically allowed for by the break lines 70 the backing structure 68 is coated at station 72 with make resin electrostatically coated with abrasive grains 16 at station 73 and then further coated with size resin to complete the layer of bonding material 18 and dried at station 74 to form the finished coated abrasive material 10 as a specific non limiting example of the sheet material 10 of fig1 and 2 a white confil u2122 wetlaid nonwoven fabric comprising a blend of cellulose and polyester fibers bonded with a polymer believed to be an acrylate adhesive purchased as style 1213033 white confil wetlaid fabric from international paper company was used as the carrier web 12 that carrier web 12 was stitched on a 14 gauge malimo u2122 type malipol stitch knitting machine operated in its single bar mode with 3 millimeter pile sinkers to produce 14 evenly spaced rows of stitches per inch in a cross web direction and to form 12 stitches per inch along each row and to form.