Fibrous cores

Patent metadata

Field	Value
Publication number	US-9561929-B2
Application number	US-201414182333-A
Country	US
Kind code	B2
Filing date	Feb 18, 2014
Priority date	Feb 21, 2013
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

The present disclosure is directed to a fibrous core comprising a fluted layer; and a liner disposed on the fluted layer. The fluted layer and the liner are helically wound defining a longitudinal core axis.

First claim

What is claimed is:

1. A fibrous core, comprising:
a fluted layer; and
a liner disposed on the fluted layer,
wherein the fluted layer and the liner are helically wound defining a longitudinal core axis, and wherein the fluted layer and the liner are in the form of a strip, wherein the strip comprises a leading edge, a trailing edge opposite the leading edge, and a strip axis substantially parallel to at least one of the leading edge and the trailing edge, and wherein the leading edge overlaps the trailing edge to form an overlap portion and a seam on the outer surface of the fibrous core and further wherein the strip comprises at least one compressed portion having a width measured from at least one of a first edge and a second edge toward the strip axis, wherein the plurality of flutes in the at least one compressed portion are compressed.

2. The fibrous core of claim 1 , wherein the fluted layer and the liner form a single face corrugate material.

3. The fibrous core of claim 1 , wherein the overlap portion comprises an overlap width of about ⅛ inch to about 3 inches measured perpendicular from the seam.

4. The fibrous core of claim 1 , wherein the fibrous core has a basis weight of between about 30 lbs/3000 sq. ft. to about 130 lbs/3000 sq. ft.

5. The fibrous core of claim 1 , wherein the fibrous core has an axial strength of greater than about 50N.

6. The fibrous core of claim 1 , wherein the liner has a basis weight of greater than a basis weight of the fluted layer.

7. The fibrous core of claim 1 , wherein the fluted layer comprises a plurality of flutes having a wave-form shape.

8. The fibrous core of claim 7 , wherein the plurality of flutes comprise at least one peak and at least one valley, and wherein an adhesive is disposed on the at least one peak, and wherein a rolled sheet product contacts the at least one peak to removably adhere to the fibrous core.

9. The fibrous core of claim 1 , wherein the fluted layer comprises a plurality of flutes each having a flute axis, wherein the flute axis is at an angle to the longitudinal core axis of the fibrous core and wherein the angle of the flute axis to the longitudinal core axis is from about 0 degrees to about 90 degrees.

10. The fibrous core of claim 1 , wherein the fibrous core further comprises a first open end and a second open end, wherein the first open end is opposite the second open end, and wherein the first open end and second open end defines a length therebetween, wherein the length is between about 2.5 inches and about 12 inches.

11. The fibrous core of claim 1 , wherein the fluted layer comprises a plurality of flutes each having a flute axis, wherein the flute axis is substantially perpendicular to the strip axis.

12. The fibrous core of claim 1 , wherein the fibrous core comprises an adhesive disposed on the outer surface.

13. The fibrous core of claim 1 , wherein the fibrous core comprises an adhesive, and wherein the adhesive substantially covers the seam.

14. The fibrous core of claim 1 , wherein the fibrous core comprises an adhesive, wherein the adhesive extends from the leading edge of the overlap portion to removably bind a rolled sheet product to the fibrous core.

15. The fibrous core of claim 1 , wherein the fibrous core comprises a rolled sheet product rolled about the outer surface of the fibrous core.

16. The fibrous core of claim 1 , wherein the fibrous core comprises a scent composition.

17. The fibrous core of claim 1 , wherein the fluted layer is an outer surface of the fibrous core.

18. A fibrous core, comprising:
an outer surface comprising a fluted layer; and
an inner surface comprising a liner, wherein the liner is disposed on the fluted layer, and wherein the fluted layer and the liner overlap to form an overlap portion and a seam,
an adhesive disposed on the overlap portion; and
one or more indicia disposed on at least one of the fluted layer and the liner;
and wherein the basis weight of the liner is substantially equal to the basis weight of the fluted layer, and wherein the fluted layer and the liner are in the form of a strip, wherein the strip comprises a leading edge, a trailing edge opposite the leading edge, and a strip axis substantially parallel to at least one of the leading edge and the trailing edge, and wherein the leading edge overlaps the trailing edge to form the overlap portion and the seam on the outer surface of the fibrous core and further wherein the strip comprises at least one compressed portion having a width measured from at least one of a first edge and a second edge toward the strip axis, wherein the plurality of flutes in the at least one compressed portion are compressed.

Assignees

• Procter & Gamble

Inventors

• Mellin Andre
• D'Souza Stephen Scott
• Mckibben John Ferney

Classifications

• B31C3/04

  Seam processing · CPC title

• B65H75/10 Primary

  without flanges, e.g. cop tubes · CPC title

• B65H2701/5112

  Paper or plastic sheet material · CPC title

• A47K2010/322

  with means for deodorizing the ambient air · CPC title

• B65H75/182

  Identification means · CPC title