Mulch material and method of making the same

Claim 1

In a method of making a sheet of mulch material comprising the steps of providing a sheet of polymeric material having openings passing therethrough and opposed sides one of which is to face the ground on which said sheet of mulch material is to be disposed, and providing a sheet of fabric material to be coextensive with and be secured to said one side of said sheet of polymeric material, the improvement comprising the steps of forming each said opening of said sheet of polymeric material to have a diameter no larger than approximately 0.05 of a millimeter in length and said sheet of fabric material to have a plurality of fiber means bonded together and defining spaces between adjacent fiber means so that each said space is no larger than approximately 0.045 of a millimeter in length whereby at least four fiber means completely overlap each of the largest said openings of said sheet of polymeric material to tend to prevent plant growth through said openings, said step of providing said sheet of fabric material comprising the steps of forming said sheet of fabric material of polymeric material, and heat bonding said sheet of fabric material to said one side of said sheet of polymeric material.