Hybrid fiber compositions and uses in containerboard packaging

Patent metadata

Field	Value
Publication number	US-9816233-B2
Application number	US-201213631183-A
Country	US
Kind code	B2
Filing date	Sep 28, 2012
Priority date	Sep 28, 2012
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

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.

First claim

What is claimed is:

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.

Assignees

• Shi Bo
• Mleziva Mark M
• Thompson Brent M
• Zelenak Robert J
• Kimberly Clark Co

Inventors

• Shi Bo
• Mleziva Mark M
• Thompson Brent M
• Zelenak Robert J

Classifications

• D21H17/30

  Alginic acid or alginates · CPC title

• B65D65/38

  Packaging materials of special type or form · CPC title

• D21H27/10

  Packing paper (packaging materials of special type or form B65D65/38) · CPC title

• D21H13/32

  Alginate fibres · CPC title

• Y10T428/24694

  Parallel corrugations · CPC title