Well the description says
Why would you only want to cut the top layer of several? Sounds like bad translation to me.
@UttaRetch that would be for the chenille I mentioned. Look up "faux chenille ". Sorry, hard to link on this tablet.
Three to six layers of fabric are stitched together, quilted if you will, by sewing parallel lines from 3/8" to 3/4" inches apart. You then slit between the rows of stitching all but the bottom layer. Usually the stitching is on the bias to the fabric grain. Run through the washer and dryer the cut edges bloom up.
Can be lovely. Used for quilting, scatter rugs and some garments. The best I've seen was a silk scarf done with multiple layers on each side of a long rectangle and the layers slashed on each side leaving the base rectangle scarf intact. Just stunning.