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EP-4734804-A1 - TISSUE PRODUCTS HAVING TEXTURE GENERATED BY A CREPING BLADE

EP4734804A1EP 4734804 A1EP4734804 A1EP 4734804A1EP-4734804-A1

Abstract

A multi-ply tissue product includes two or more wet pressed and creped tissue plies. The multi-ply tissue product defines a first outer surface and a second outer surface opposite the first outer surface. At least the first outer surface defines a three-dimensional surface topography including a plurality of ridges separated by valleys. Each of the plurality of ridges defines a height of 50 µm to 355 µm. Each of the plurality of ridges is spaced apart from an adjacent ridge by a distance of 500 µm to 2,000 µm. The multi-ply tissue product has an average stiffness index of 7.4 to 9.4, and a TS7 value of less than 15.

Inventors

  • Massarotti, Giovanni
  • DYER, THOMAS
  • RILEY, Erin

Assignees

  • Kimberly-Clark Worldwide, Inc.

Dates

Publication Date
20260506
Application Date
20240627

Claims (20)

  1. 1. A multi-ply tissue product comprising: two or more wet pressed and creped tissue plies, the multi-ply tissue product defining a first outer surface and a second outer surface opposite the first outer surface, at least the first outer surface defining a three-dimensional surface topography including a plurality of ridges separated by valleys, wherein: each of the plurality of ridges defines a height of 50 pm to 355 pm, each of the plurality of ridges is spaced apart from an adjacent ridge by a distance of 500 pm to 2,000 pm, the multi-ply tissue product has a stiffness index of 7.4 to 9.4 , and the multi-ply tissue product has a TS7 value of less than 15.
  2. 2. The multi-ply tissue product of claim 1, wherein the three-dimensional surface topography is produced by a textured creping blade.
  3. 3. The multi-ply tissue product of claim 1, wherein the plurality of ridges includes 50 ridges per inch to 12 ridges per inch.
  4. 4. The multi-ply tissue product of claim 1, wherein the plurality of ridges define an indentation spacing of 500 pm to 2,000 pm.
  5. 5. The multi-ply tissue product of claim 1, wherein the two or more wet pressed and creped tissue plies comprise a conventional creping composition.
  6. 6. The multi-ply tissue product of claim 5, wherein the multi-ply tissue product is produced with under 3 milligrams of slough.
  7. 7. The multi-ply tissue product of claim 1 , wherein the second outer surface of the tissue product defines a three-dimensional surface topography including a plurality of ridges separated by valleys.
  8. 8. The multi-ply tissue product of claim 7, wherein the multi-ply tissue product defines a caliper of 375 pm to 630 pm.
  9. 9. The multi-ply tissue product of claim 7, wherein the multi-ply tissue product defines a basis weight of 40 gsm to 42 gsm.
  10. 10. The multi-ply tissue product of claim 7, wherein the multi-ply tissue product defines a geometric mean tensile of 1,200 g/3” to 1,560 g/3”.
  11. 11. The multi-ply tissue product of claim 7, wherein the multi-ply tissue product has a TS750 value of 40 to 112.
  12. 12. The multi-ply tissue product of claim 7, wherein the multi-ply tissue product has a TS750 value of 40 to 65.
  13. 13. The multi-ply tissue product of claim 7, wherein the multi-ply tissue product has a TS7 value of less than 12.
  14. 14. The multi-ply tissue product of claim 1, wherein the multi-ply tissue product has a converted product caliper of 400 microns to 575 microns.
  15. 15. The multi-ply tissue product of claim 1, wherein the two or more wet pressed and creped tissue plies comprise a conventional creping composition.
  16. 16. The multi-ply tissue product of claim 15, wherein the multi-ply tissue product is produced with under 3 milligrams of slough.
  17. 17. A multi-ply tissue product comprising: two or more wet pressed and crcpcd tissue plies, the multi-ply tissue product defining a first outer surface and a second outer surface opposite the first outer surface, at least the first outer surface defining a plurality of ridges formed by a textured creping blade and separated by valleys, wherein: the plurality of ridges includes 50 ridges per inch to 12 ridges per inch, each of the plurality of ridges is spaced apart from an adjacent ridge by a distance of 500 pm to 2,000 pm, the multi-ply tissue product has a geometric mean tensile of 1,100 g/3” to 1,600 g/3”, the multi-ply tissue product has a stiffness index of 7.4 to 9.4, the multi-ply tissue product has a TS750 value greater than 45, and the multi-ply tissue product has a TS7 value of less than 13.
  18. 18. The multi-ply tissue product of claim 17, wherein the second outer surface defines a three-dimensional surface topography including a plurality of ridges separated by valleys.
  19. 19. The multi-ply tissue product of claim 17, wherein the multi-ply tissue product defines a caliper of 375 pm to 630 pm.
  20. 20. The multi-ply tissue product of claim 18, wherein the two or more tissue plies comprise a conventional creping composition, and wherein the three-dimensional surface topography is produced by a textured creping blade.

Description

TISSUE PRODUCTS HAVING TEXTURE GENERATED BY A CREPING BLADE BACKGROUND This disclosure relates to absorbent tissue products, such as paper towels, facial tissues, bath tissues and other similar products, that are designed to include several important properties. For example, the products should have good bulk, a soft feel, and be highly absorbent. In addition, the products should also have sufficient strength for the particular application and environment in which they are to be used. Some absorbent tissue products are produced using a creping process to increase bulk and improve softness. For example, in the creping process, a creping adhesive may be sprayed onto a rotating drum, such as a Yankee dryer. A tissue web is then adhered to an outside surface of the drum, and a creping blade is used to remove the tissue web from the surface of the drum. Creping the web from the drum compacts the web and can break fiber-to-fiber bonds, which increases the bulk and softness of the product. SUMMARY In some aspects, the techniques described herein relate to a multi-ply tissue product including: two or more wet pressed and crcpcd tissue plies, the multi-ply tissue product defining a first outer surface and a second outer surface opposite the first outer surface, at least the first outer surface defining a three-dimensional surface topography including a plurality of ridges separated by valleys, wherein: each of the plurality of ridges defines a height of 50 pm to 355 pm, each of the plurality of ridges is spaced apart from an adjacent ridge by a distance of 500 pm to 2,000 pm, the multi-ply tissue product has a stiffness index of 7.4 to 9.4 , and the multi-ply tissue product has a TS7 value of less than 15. In some aspects, the techniques described herein relate to a multi-ply tissue product including: two or more wet pressed and creped tissue plies, the multi-ply tissue product defining a first outer surface and a second outer surface opposite the first outer surface, at least the first outer surface defining a plurality of ridges formed by a textured creping blade and separated by valleys, wherein: the plurality of ridges includes 50 ridges per inch to 12 ridges per inch, each of the plurality of ridges is spaced apart from an adjacent ridge by a distance of 500 pm to 2,000 m, the multi-ply tissue product has a geometric mean tensile of 1 ,100 g/3" to 1 ,600 g/3", the multi-ply tissue product has a stiffness index of 7.4 to 9.4, the multi-ply tissue product has a TS750 value greater than 45, and the multi-ply tissue product has a TS7 value of less than 13. In some aspects, the techniques described herein relate to a method including: applying a creping composition to a Yankee dryer drum; applying a first tissue ply to the Yankee dryer drum; creping the first tissue ply from the Yankee dryer drum with a textured creping blade; applying a second tissue ply to the Yankee dryer drum; creping the second tissue ply from the Yankee dryer drum with the textured creping blade; and marrying the first tissue ply and the second tissue ply to create a multi-ply tissue product having a stiffness index of 7.4 to 9.4, a TS750 value of 40 to 112, and a TS7 value of less than 15. This summary is illustrative only and is not intended to be in any way limiting. Other aspects, features, and advantages of the devices or processes described herein will become apparent in the detailed description set forth herein, taken in conjunction with the accompanying figures, wherein like reference numerals refer to like elements. BRIEF DESCRIPTION OF DRAWINGS Various implementations are explained in even greater detail in the following drawings. The drawings are merely exemplary and certain features may be used singularly or in combination with other features. The drawings are not necessarily drawn to scale. FIG. 1 is a schematic representation of a wet pressed creped tissue web forming system, according to some implementations. FIG. 2 is a schematic representation of another wet pressed creped tissue web forming system, according to some implementations. FIG. 3 is a schematic representation of another wet pressed creped tissue web forming system, according to some implementations. FIG. 4 is a schematic representation of a device for forming a multi-layered stratified pulp furnish, according to some implementations. FIG. 5 is a schematic representation of an embossing system, according to some implementations. FIG. 6 is a schematic representation of a creping blade, according to some implementations . FIG. 7 is a graph showing TS7 versus TS750 for tissue products created according to some implementations. FIG. 8 is a graph showing GMT versus caliper in microns for tissue products created according to some implementations. FIG. 9 is a graph showing Geometric Mean Tensile versus Geometric Mean Slope for tissue products produced by systems and methods described herein, according to some implementations . FIG. 10 is a graph showing Stiffness Inde