Embossed multi-ply tissue product

Patent metadata

Field	Value
Publication number	US-11280051-B2
Application number	US-201917259674-A
Country	US
Kind code	B2
Filing date	Sep 24, 2019
Priority date	Sep 28, 2018
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

Disclosed are multi-ply embossed tissue products having improved softness, strength, embossment clarity and/or embossment height compared to prior art embossed tissue products. The multi-ply tissue products may comprise an embossed tissue ply having a basis weight less than about 25 grams per square meter (gsm) and relatively deep embossments, such as an embossment height from about 500 to about 1,000 μm and relatively narrow bottom portions compared to top portions. The combination of these elements provides an aesthetically pleasing and well-defined embossment, while improving important tissue product properties such as sheet and roll bulk and softness.

First claim

What is claimed is:

1. An embossed multi-ply tissue product comprising a first ply having a first surface and a plurality of discrete, spaced apart, dot embossments disposed thereon and a plurality of dome-like structures disposed between the spaced apart dot embossments and a second ply having a first surface and a plurality of discrete embossments disposed thereon, each of the discrete embossments bounded by spaced apart dot embossments and in registration with a dome-like structure, wherein the dot embossments have a height (H 100 ) greater than 500 μm and an average width at 25% height (W 25 ) less than about 600 μm and a ratio of average width at 100% height (W 100 ) to W 25 from about 3.00 to about 4.00.

2. The embossed multi-ply tissue product of claim 1 wherein the tissue product has a geometric mean tensile (GMT) strength from about 800 to about 1,700 g/3″.

3. The embossed multi-ply tissue product of claim 1 wherein the tissue product consists of three plies and has a basis weight from about 30 to about 50 grams per square meter (gsm) and a sheet bulk from about 7.0 to about 11.0 cubic centimeters per gram (cc/g).

4. The embossed multi-ply tissue product of claim 1 further comprising unembossed regions having an upper surface lying in a first tissue product surface plane and the dome-like structure having an upper surface lying in a second tissue product surface plane, wherein the second tissue product surface plane is at least 100 μm above the first tissue product surface plane.

5. The embossed multi-ply tissue product of claim 1 wherein the tissue product is spirally wound around a core to yield a rolled tissue product having a roll bulk from about 8.0 to about 13.0 cc/g.

6. The embossed multi-ply tissue product of claim 1 wherein the dot embossments have a H 100 from 700 to about 1,000 μm.

7. The embossed multi-ply tissue product of claim 1 wherein the dot embossments have a ratio of average width at 50% height (W 50 ) to W 25 greater than about 1.40.

8. The embossed multi-ply tissue product of claim 1 wherein the tissue product has a basis weight of about 60 gsm or less and a geometric mean tensile (GMT) strength less than about 1,500 g/3″ and the dot embossments have a ratio of average width at 50% height (W 50 ) less than about 1,000 μm and an average height at 50% (H 50 ) greater than about 350 μm.

Assignees

• Kimberly Clark Co

Inventors

• Satake Neto Tsutama
• Duran Jorge Alonso
• Câmara Mileo Patricia

Classifications

• B31F2201/0735

  Pattern inclined with respect to the axis of the roller · CPC title

• B32B3/28

  characterised by a layer comprising a deformed thin sheet {, i.e. the layer having its entire thickness deformed out of the plane}, e.g. corrugated, crumpled (B32B29/08 takes precedence) · CPC title

• B31F2201/0761

  Multi-layered · CPC title

• B31F2201/0733

  Pattern · CPC title

• B31F1/07

  Embossing {, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles}({B31F1/128 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 title