Hybrid fiber compositions and uses in containerboard packaging
The present invention relates to a containerboard packaging material comprising at least one non-wood alternative pulp material wherein said non-wood alternative pulp material is present in an amount of from about 5% to about 100% and wherein said material replaces at least a portion of conventional fiber materials.
1. A containerboard packaging material comprising a paper linerboard and a fiber-based flute, wherein the linerboard comprises:
a first non-wood alternative pulp material selected from the group consisting of corn stover, straw, other land-based natural fibers, and combinations thereof and present in an amount of from about 10% to about 60%, and
a second one non-wood alternative pulp material selected from seaweed and present in an amount of from about 5% to about 30%,
wherein the non-wood alternative pulp material replaces at least a portion of conventional fiber materials.
2. The containerboard packaging material of claim 1 , the linerboard further comprising 85% to 10% hardwood pulp.
3. The containerboard packaging material of claim 1 wherein the seaweed is selected from the group consisting of Gelidium elegance, Gelidium corneum, Gelidium amansii, Gelidium robustum, Gelidium chilense, Gracelaria verrucosa, Eucheuma Cottonii, Eucheuma Spinosum, Beludul , and combinations thereof.
4. The containerboard packaging material of claim 1 , wherein the first non-wood alternative pulp material is wheat straw and the second non-wood alternative pulp material is red algae, with the linerboard comprising from about 20% to about 75% of wheat straw and red algae pulp combined.
5. The containerboard packaging material of claim 1 , the linerboard comprising from about 5% to about 30% seaweed red algae pulp and from about 25% to about 90% hardwood pulp fibers.
6. The containerboard packaging material of claim 1 , wherein the flute comprises corrugated medium that has basis weight from about 90 g/m 2 to about 200 g/m 2 .
7. The containerboard packaging material of claim 1 , further comprising an adhesive selected from the group consisting of starch, polyvinyl acetate, and combinations thereof.
8. The containerboard packaging material of claim 1 , wherein the flute ranges in size from about 105 flutes per meter to about 420 flutes per meter.
9. The containerboard packaging material of claim 7 wherein said material is converted into rigid packaging containers suitable for packaging applications.
10. The containerboard packaging material of claim 1 wherein the ratio of hardwood pulp to non-wood alternative pulp is from about 30:70 to about 5:95.
11. The containerboard packaging material of claim 1 , wherein the straw is selected from the group consisting of wheat, rice, oat, barley, rye, flax, grass, and combinations thereof.
12. The containerboard packaging material of claim 1 , wherein the other land-based natural fibers are selected from the group consisting of flax, bamboo, cotton, jute, hemp, sisal, bagasse, kenaf, hesperaloe, switchgrass, miscanthus, and combinations thereof.