Multiple ply paper wiping product having a soft side and a textured side

• US 20030121628A1
• Filed: 12/31/2001
• Published: 07/03/2003
• Est. Priority Date: 12/31/2001
• Status: Active Grant

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Barta, Thomas, Paquot, Laurent, Mills, Russell P., Behm, Rick
• Granted Patent: US 6,649,025 B2
• Time in Patent Office: Days
• US Class Current: 162/125
• CPC Class Codes: B31F 1/07 Embossing , i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profilesB31F1/128 takes precedence; corrugating B31F1/20; embossing in combination with printing B41F19/02, B41M1/24; typewriters for embossing B41J3/38; stamping in combination with deforming B41K3/36
• CPC Class Codes: B31F 2201/0733 Pattern
• CPC Class Codes: B31F 2201/0764 the layers being nested
• CPC Class Codes: B32B 29/00 Layered products comprising a layer of paper or cardboard
• CPC Class Codes: D21F 11/14 Making cellulose wadding, filter or blotting paper
• CPC Class Codes: D21F 11/145 including a through-drying process
• CPC Class Codes: D21H 27/40 at least one of the sheets being non-planar, e.g. crêped crêping or corrugating paper B31F
• CPC Class Codes: Y10T 156/1023 Surface deformation only [e.g., embossing]
• CPC Class Codes: Y10T 428/24455 Paper
• CPC Class Codes: Y10T 428/24463 Plural paper components
• CPC Class Codes: Y10T 428/24479 including variation in thickness
• CPC Class Codes: Y10T 428/24562 Interlaminar spaces
• CPC Class Codes: Y10T 428/24612 Composite web or sheet
• CPC Class Codes: Y10T 428/24826 Spot bonds connect components
• CPC Class Codes: Y10T 428/24942 including components having same physical characteristic in differing degree

Abstract

A laminate wiping product is disclosed. The wiping product includes a first outer ply that has a textured surface. For example, the first outer ply can be an uncreped throughdried paper web having a three-dimensional conformation. The second outer ply, on the other hand, can be a smoother and softer web. The plies are laminated together by any suitable process. In one embodiment, the plies are embossed and nested together to form the final product.

Claims

1. A paper wiping product comprising:

a first outer ply comprising an uncreped, throughdried paper web, said first outer ply having a basis weight of from about 15 gsm to about 80 gsm and a textured surface having an Overall Surface Depth of greater than about 0.1 mm; and

a second outer ply bound to said first outer ply, said second outer ply comprising a paper web, said second outer ply having a basis weight less than said first outer ply, said second outer ply comprising softwood fibers and hardwood fibers and having surfaces less textured than the textured surface of the first outer ply.

2. A paper wiping product as defined in claim 1, wherein said product consists essentially of said first outer ply and said second outer ply.

3. A paper wiping product as defined in claim 1, wherein said first outer ply and said second outer ply are secured together by an adhesive.

4. A paper wiping product as defined in claim 3, wherein said adhesive comprises polyvinyl alcohol, an acetate, or a starch.

5. A paper wiping product as defined in claim 1, wherein said first outer ply is embossed and nested together with said second outer ply.

6. A paper wiping product as defined in claim 1, wherein said first outer ply and said second outer ply are in a pin-to-pin relationship.

7. A paper wiping product as defined in claim 1, wherein said textured surface has an Overall Surface Depth of from about 0.2 mm to about 0.6 mm.

9. A paper wiping product as defined in claim 1, wherein said first outer ply comprises at least about 50% by weight softwood fibers.

10. A paper wiping product as defined in claim 9, wherein said first outer ply comprises up to 30% by weight high-yield fibers.

11. A paper wiping product as defined in claim 1, wherein said second outer ply comprises a creped tissue web.

12. A paper wiping product as defined in claim 11, wherein said creped second outer ply is also throughdried.

13. A paper wiping product as defined in claim 1, wherein said second outer ply comprises an uncreped throughdried tissue web.

14. A paper wiping product as defined in claim 1, wherein said second out ply comprises at least 50% by weight eucalyptus fibers.

15. A paper wiping product as defined in claim 1, wherein said first outer ply has a density of less than about 0.3 g/cm³.

8. A paper wiping product as defined in 1, wherein said first outer ply has a basis weight of from about 20 gsm to about 27 gsm, said second outer ply having a basis weight of from about 19 gsm to about 23 gsm.

16. A process for producing a laminated wiping product comprising:

forming a paper web from an aqueous slurry of fibers;

throughdrying said paper web without creping said paper web, said paper web having a basis weight of from about 20 gsm to about 80 gsm, said paper web being dried on a throughdrying fabric having from about 5 to about 300 impression knuckles per square inch, said knuckles being raised at least 0.005 inches above the plane of the fabric, wherein, during drying, the paper web is macroscopically rearranged to conform to the surface of the throughdrying fabric to form a textured surface on the web;

and laminating said paper web to an embossed tissue web, said tissue web comprising softwood fibers and hardwood fibers.

17. A process as defined in claim 16, wherein the formed textured surface of the paper web has an Overall Surface Depth of greater than about 0.2 mm, the textured surface forming an exterior surface of the laminated wiping product.

18. A process as defined in claim 16, wherein the paper web comprises softwood fibers and high-yield fibers, said high-yield fibers being present in the web in an amount up to about 30% by weight.

19. A process as defined in claim 16, wherein the paper web is secured to the embossed tissue web by a binder material.

20. A process as defined in claim 18, wherein the tissue web comprises softwood fibers, hardwood fibers and high-yield fibers.

21. A process as defined in claim 16, wherein the tissue web has a basis weight less than the basis weight of the paper web.

22. A process as defined in claim 16, wherein the paper web and the tissue web are embossed and nested together during the laminating step.

23. A process as defined in claim 16, wherein the tissue web comprised a creped web.

24. A process as defined in claim 23, wherein the tissue web is throughdried.

25. A paper wiping product comprising:

a first outer ply comprising an uncreped, throughdried paper web, the first outer ply having a basis weight of at least 15 gsm, the paper web comprising softwood fibers and high-yield fibers, said first outer ply including a textured surface defining an exterior surface of the wiping product, the textured surface having an Overall Surface Depth of greater than about 0.1 mm; and

a second outer ply secured to said first outer ply by a binder material, said second outer ply comprising a paper web containing high-yield fibers and fibers selected from the group consisting of softwood fibers, hardwood fibers and mixtures thereof, said second outer ply having a basis weight less than said first outer ply.

26. A paper wiping product as defined in claim 25, wherein the first outer ply is embossed and nested together with the second outer ply.

27. A paper wiping product as defined in claim 25, wherein the second outer ply includes a surface that defines an exterior surface of the paper wiping product, the surface of the second outer ply being less textured than the textured surface of the first outer ply.

28. A paper wiping product as defined in claim 25, wherein the first outer ply has a basis weight of from about 20 gsm to about 27 gsm, and said second outer ply has a basis weight of from about 19 gsm to about 23 gsm.

29. A paper wiping product as defined in claim 25, wherein the second outer ply is creped and embossed.

30. A paper wiping product as defined in claim 25, wherein the first outer ply has a density of less than about 0.3 g/cm³.