Plastic reinforced paper and bag made thereof
AssigneePolynovus Industries, Inc.
InventorJohn Rodish
Life of this patent
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Abstract
Paper provided on one surface with a mesh-like pattern, for example a diamond-shaped pattern, or reinforcing extruded plastic material. The extruded plastic material is applied to the paper surface in the form of a plurality of narrow thin stripes or strands adhering to the surface and penetrating through the mass of the paper due to the porosity of the paper and drawing of the plastic material through the paper during application of the plastic stripes or strands by applying vacuum to the opposite surface of the paper. The reinforced paper of the invention is particularly useful for making good-carrying bags commonly used for carrying groceries and other purchased articles from a store.
Claims21
A reinforced sheet material comprising a substrate and a plurality of relatively narrow pliable stripes of plastic material directly deposited on and adhering to a single surface of said substrate, said stripes forming a permanent closed mesh pattern regularly disposed on said surface, said plastic material forming said pattern being fused to said surface of said substrate where said stripes are located and at least a portion of said plastic material forming said pattern having penetrated into said substrate below said surface substantially directly under said stripes, whereby said substrate remains substantially unchanged where not so provided with said stripes.
A reinforced shopping bag comprising a length of paper having a single surface provided with a permanent regular pattern of stripes of plastic material directly deposited thereon and fused thereto, with at least a portion of said plastic material impregnating said paper directly below said stripes, said regular pattern forming a closed mesh pattern leaving portions of said surface uncoated by said plastic material, and said pattern comprising four parallel substantially wider rectilinear stripes of said plastic material deposited on said surface and joined with portions of said closed mesh pattern, said rectilinear stripes being disposed at each corner of said bag when said length of paper is formed as a rectangular tube for defining said bag with an end of said rectangular tube being folded in the form of flaps attached together by means of an adhesive for forming the bottom panel of said bag.
Dependencies are inferred from the claim text.