Composite sheet materials and processes for manufacturing same
Provided are, among other things, systems, methods and techniques for manufacturing sheet material. In one representative embodiment, a sheet of fabric material is positioned across a patterning template that has a number of openings; and the sheet of fabric material and the patterning template are fed through an extrusion device in which extrusion material coats the fabric material and forces the fabric material into the openings in the patterning template, thereby producing a composite sheet material.
1. A method of manufacturing sheet material, comprising:
feeding both a patterning template having a plurality of openings and a base material through a shaping portion of an extrusion device, so that the base material is forced into the openings in the patterning template and a combination of the base material and patterning template is shaped into a composite sheet material, and
wherein the base material and the patterning template are made of different materials.
2. A method according to claim 1 , wherein the patterning template comprises reconstituted leather.
3. A method according to claim 1 , wherein the composite sheet material includes a surface having alternating areas of the base material and the patterning template, and wherein the area of the surface occupied by the patterning template constitutes at least 50% of the total area of the surface.
4. A method according to claim 1 , wherein the composite sheet material includes a substantially flat surface having alternating areas of the base material and the patterning template.
5. A method according to claim 1 , further comprising a step of cutting a piece of the composite sheet material and using the piece as at least a portion of a shoe outsole.
6. A method according to claim 1 , wherein the patterning template remains permanently embedded in the composite sheet material.
7. A method according to claim 6 , wherein the patterning template is formed from a natural material.
8. A method according to claim 1 , wherein the patterning template is formed from a natural material.
9. A method according to claim 1 , wherein the patterning template is dispensed from a roll into the extrusion device.
10. A method according to claim 1 , wherein the patterning template has a lattice structure.
11. A method according to claim 1 , wherein the patterning template is not more than 1 centimeter thick.
12. A method according to claim 1 , wherein the openings extend all the way through the patterning template.
13. A method according to claim 1 , wherein the patterning template includes a two-dimensional array of regularly spaced openings.
14. A method according to claim 1 , wherein the shaping portion of the extrusion device comprises a pair of spaced-apart rollers.
15. A method according to claim 1 , wherein the base material and the patterning template move through the shaping portion of the extrusion device in the same direction.
16. A method according to claim 1 , wherein the base material is deposited onto the patterning template prior to the combination of the base material and the patterning template passing through the shaping portion of the extrusion device.
17. A method according to claim 1 , wherein the composite sheet material includes a bottom surface having alternating areas of the base material and the patterning template, and wherein a top surface of the composite sheet material consists entirely of the base material.