Durable transfer roll core and method of making and using the same

Patent metadata

Field	Value
Publication number	US-12304773-B2
Application number	US-202117320581-A
Country	US
Kind code	B2
Filing date	May 14, 2021
Priority date	May 15, 2020
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A durable transfer roll core may comprise an elongate body comprising a groove, the elongate body having a longitudinal axis. The groove may comprise a Groove Angle from about 0 to about 90 degrees (relative to the longitudinal axis) and the groove may comprise a Groove Depth greater than about 0.003 inches.

First claim

What is claimed is:

1. A durable transfer roll core, comprising:
an elongate body having a main surface comprising a groove, the elongate body having a longitudinal axis;
wherein the groove comprises a Groove Angle from about 0 to about 85 degrees, relative to the longitudinal axis;
wherein the groove comprises a Groove Depth greater than about 0.003 inches;
wherein a first ridge runs along a first side of the groove;
wherein a second ridge runs along a second side of the groove, wherein the second side is opposite the first side of the groove; and
wherein the first ridge has a ridge height greater than the second ridge.

2. The durable transfer roll core of claim 1 , wherein the groove comprise a Groove Length from about 1 to about 112 inches.

3. The durable transfer roll core of claim 1 , wherein the groove comprise a Groove Length from about 40 to about 55 inches.

4. The durable transfer roll core of claim 1 , wherein the roll is selected from a material consisting of plastic, thermoplastic, metal, carbon filaments, thermoplastic resins, and combinations thereof.

5. The durable transfer roll core of claim 1 , wherein the durable transfer roll core has a Core Length from about 20 to about 110 inches.

6. The durable transfer roll core of claim 1 , wherein the durable transfer roll core has an Outer Core Diameter from about 10 to about 19 inches.

7. The durable transfer roll core of claim 1 , wherein the durable transfer roll core has an Inner Core Diameter from about 9 to about 18 inches.

8. The durable transfer roll core of claim 1 , wherein the durable transfer roll core has a spiral groove pattern.

9. The durable transfer roll core of claim 1 , wherein the durable transfer roll core comprises multiple groove segments.

10. The durable transfer roll core of claim 9 , wherein the multiple groove segments are staggered from each other.

11. The durable transfer roll core of claim 1 , wherein the durable transfer roll core is cylindrical.

12. The durable transfer roll core of claim 1 , wherein the grooves comprise a Groove Width from about 0.01 to about 0.3 inches.

13. The durable transfer roll core of claim 1 , wherein the elongate body comprises ridges.

14. The durable transfer roll core of claim 1 , wherein a first ridge runs along a first side of the groove.

15. The durable transfer roll core of claim 14 , wherein a second ridge runs along a second side of the groove, wherein the second side is opposite the first side of the groove.

16. The durable transfer roll core of claim 1 , wherein the first ridge has a Ridge Height at least 25% greater than the second ridge.

17. The durable transfer roll core of claim 1 , wherein the first ridge has a Ridge Width at least 25% greater than the second ridge.

18. The durable transfer roll core of claim 1 , wherein the Ridge Spacing from the first ridge to the second ridge is from about 0.05 to about 0.4 inches.

19. The durable transfer roll core of claim 1 , wherein the groove comprises a Groove Depth is from about 0.003 to about 0.1.

20. The durable transfer roll core of claim 1 , wherein the roll is selected from a material consisting of high density polyethylene (HDPE), polypropylene random copolymer with modified crystallinity (PP-RCT), polypropylene random copolymer (PP-R), crosslinked polyethylene (PEX), polypropylene, and combinations thereof.

21. The durable transfer roll core of claim 1 , wherein the roll comprises high density polyethylene (HDPE).

22. The durable transfer roll core of claim 1 , wherein the roll is substantially comprised of high density polyethylene (HDPE).

23. The durable transfer roll core of claim 1 , wherein the Groove Angle is from about 10 to about 75 degrees, relative to the longitudinal axis.

24. The durable transfer roll core of claim 1 , wherein the Groove Angle is from about 15 to about 60 degrees, relative to the longitudinal axis.

25. The durable transfer roll core of claim 1 , comprising a Core Material Tensile Strength greater than about 1000 lbf/in 2 (PSI).

26. The durable transfer roll core of claim 1 , comprising an Izod Impact Strength of greater than about 1 ft-lbf/in.

27. A durable transfer roll core, comprising:
an elongate body having a main surface comprising a groove, the elongate body having a longitudinal axis;
wherein the groove comprises a Groove Angle from about 0 to about 85 degrees, relative to the longitudinal axis;
wherein the groove comprises a Groove Depth greater than about 0.003 inches;
wherein a first ridge runs along a first side of the groove;
wherein a second ridge runs along a second side of the groove, wherein the second side is opposite the first side of the groove; and
wherein the first ridge has a Ridge Height at least 25% greater than the second ridge.

28. A durable transfer roll core, comprising:
an elongate body having a main surface comprising a groove, the elongate body having a longitudinal axis;
wherein the groove comprises a Groove Angle from about 0 to about 85 degrees, relative to the longitudinal axis;
wherein the groove comprises a Groove Depth greater than about 0.003 inches;
wherein a first ridge runs along a first side of the groove;
wherein a second ridge runs along a second side of the groove, wherein the second side is opposite the first side of the groove; and
wherein the first ridge has a Ridge Width at least 25% greater than the second ridge.

Assignees

• Procter & Gamble

Inventors

• Watkins Eric James
• Mellin Gustav André
• Lockhart Brad Scott
• Khan Farid A

Classifications

• B65H2701/51

  Cores or reels characterised by the material · CPC title

• B65H2511/21

  Angle · CPC title

• B65H2511/15

  Height, e.g. of stack · CPC title

• B65H2511/14

  Diameter, e.g. of roll or package · CPC title

• B65H2511/12

  Width · CPC title