Machines have been disclosed for forming a button stay side zipper patch and a fly side zipper patch as garment components for later incorporation into garments such as men''s pants; the button stay side machine consists of a combination of elements which takes separate pieces of zipper patch fed either invertingly or directly to a folding device where the patch is folded and pressed, thereafter joined with a zipper string, and in a serging sewing machine the zipper is sewn to the patch; in a zipper ''''gapper'''' device a certain number of zipper teeth are removed from the zipper string and, after a ''''top stop'''' placed on the zipper section string for the button stay side patch, the continuous and chained-together button stay side patch is placed in a cutting device where each individual button stay side zipper patch is cut from the others and thereafter stacked; another embodiment of the button stay side zipper patch machine is provided whereby individual patches are preformed in a ribbon and the ribbon is fed to the serging machine without pickup and folding of the individual patches; thus, the present button stay side machine is comprised of means for feeding an individual patch; means for inverting every other patch, if desired, means for folding each patch, means for pressing; means for feeding and sensing the feed of the zipper; means for serging; means for gapping the sewn button stay side zipper; means for placing a top stop on the zipper; and means for cutting each of the individual button stay side zipper components including means for stacking the same; the fly side zipper patch machine comprises a serging machine including means for feeding a ribbon of patches to the same, and a double needle flat bed sewing machine in-cluding the means for feeding the patches through it and through the serging machine and means for feeding the zipper string whereby the zipper string is sewn on the patch; further the fly side zipper patch machine includes the gapper means, but not the top stop means, and the cutting and stacking means.