Abstract: Needlepoint sheet having channel perforations with octagonal upper and lower openings. Thread drawn through a channel in a diagonal direction is pulled over a flat surface which widens the area covered by the thread. The needlepoint sheet is made of a polymeric material. The perforations are preferably formed into a plurality of aligned rows for receiving the thread. Each channel is enclosed by eight sides which form octagonal upper and lower openings. The width of each of the sides is substantially equal. In a preferred embodiment of the invention each of the sides form a plane, and the height of each of the side planes is substantially equal. In a preferred embodiment of the invention each of the side planes merge along a curved portion of the wall. This distributes the stress during bending of the needlepoint sheet, and reduces cracking and breakage thereof. In use thread is extended through the channels.

Abstract: A method and materials for sewing craft sheets of plastic canvas is disclosed wherein an adhesive backed transparent film sheet having a grid pattern thereon color coded to form a picture is affixed to a plastic canvas having a grid pattern the same size as the grid pattern on the sheet. The grid on the transparent sheet is aligned with the grid of the plastic canvas and the grid is then cut to the shape of the picture on the transparent sheet. The person can then stitch the picture, following the color code marks on the transparent sheet grid.

Abstract: A needlepoint sheet of flexible plastic material having a plurality of aligned rows of perforations for receiving thread-like material such as yarn therethrough. The sheet has at least one flat face which has pattern indicia imprinted directly on the flat face so that one may needlepoint a design in accordance with the pattern indicia or in accordance with instructions utilized in combination with the pattern indicia. The pattern indicia may take on the form of a pattern needlepoint design on the flat surface of the needlepoint sheet or it may consist of indicia on the border of the flat face at spaced intervals to assist one in locating specific perforations in the sheet for sewing a needlepoint design thereon. The side walls of each of the perforations are preferably in the form of a pyramid frustrum.

Abstract: An injection mold for molding plastic needlepoint sheets which have a plurality of aligned rows of perforations which define plastic threads therebetween in a lattice configuration. The mold has engageable top and bottom mold body halves with open uniform mold channels formed in each half in a lattice configuration wherein the channel lattices of the mold halves cooperatively mate with each other upon engagement to define a mold cavity therebetween for the molding of a needlepoint sheet. The lattice channels in the mold body halves are constructed whereby the lattice channels in one half define a greater total volume than that of the other half, such that the greater volume of plastic to be molded in the mold cavity is received in the ejection half of the mold. In order to facilitate removal of the molded sheet from the mold, the lattice mold channels in the mold body halves are contoured to define a resultant cross section of the thread of a needlepoint sheet to be molded which is polygonal.