Method and apparatus for making curled decorative grass
View Patent ↗Curled decorative grass having a variety of configurations and methods for making such decorative grass is provided which, because of its increased bulk, can also be used as a packing material, an animal bedding, cat litter, mulch for soil and a media for plants. The curled decorative grass is produced by curling a substantially flat sheet of material and thereafter cutting the resulting curled sheet of material, or by cutting a pre-curled material.
1. A method for making curled decorative grass comprising the steps of:
providing a sheet or web of material capable of having a curl imparted thereto;
slitting the sheet or web of material to provide a plurality of side-by-side strips of material; and
drawing the plurality of side-by-side strips of material over at least one curl bar so as to produce a curled decorative grass having at least one of a substantially clock spring configuration and a compression tension spring configuration, wherein the at least one curl bar is provided with a curling edge, and wherein an angle of a portion of the curling edge of the at least one curl bar relative to a direction of travel of the plurality of side-by-side strips of material is different from an angle of another portion of the curling edge of the curl bar relative to the direction of travel of the plurality of side-by-side strips of material.
2. The method of claim 1 wherein, in the step of drawing the plurality of side-by-side strips of material over at least one curl bar, the plurality of side-by-side strips of material are maintained under tension while drawn over the at least one curl bar to ensure proper angular disposition of the plurality of side-by-side strips of material over the at least one curl bar, and wherein, in the step of slitting the sheet or web of material, the sheet or web of material is maintained under tension while slitting the sheet or web of material.
3. The method of claim 1 wherein the step of drawing the plurality of side-by-side strips of material over at least one curl bar further comprises cutting the plurality of side-by-side strips of material to provide curled decorative grass.
4. The method of claim 3 further comprising the step of:
passing the plurality of side-by-side strips of material through a restraining assembly after the plurality of side-by-side strips of material are drawn over at least one curl bar and prior to cutting the plurality of side-by-side strips of material so as to maintain the plurality of side-by-side strips of material in a substantially planar or flattened condition, thereby enhancing uniformity of the curled decorative grass.
5. The method of claim 1 wherein, in the step of slitting the sheet or web of material, the plurality of side-by-side strips of material are attached via at least one attach point.
6. The method of claim 1 wherein, in the step of providing a sheet or web of material, the sheet or web of material is selected from the group consisting of paper, polymeric film, laminated polymeric film, wax paper, paper having a shape-sustaining agent applied to at least one side thereof and paper having a lacquer applied to at least one side thereof.
7. The method of claim 1 wherein, in the step of providing a sheet or web of material, the sheet or web of material is provided with at least one of a printed pattern and an embossed pattern on at least a portion of one surface thereof such that at least a substantial portion of the curled decorative grass formed therefrom contains at least a portion of the printed pattern and/or embossed pattern.