Absorbent paper product having improved embossing
The invention relates to an absorbent paper product, made in particular of tissue paper, that includes at least two plies, at least one of which is embossed according to an embossing pattern that includes projections ( 1, 2, 3 ) with a density of 30 or more per cm 2 . According to the invention, the embossing patterns include at least two adjacent zones whose projections ( 1, 2, 3 ) have, respectively, a different density and/or a different surface area at the peak so as to produce a relief effect on the product.
1. An absorbent paper product made substantially of tissue paper comprising at least two plies with at least one of said at least two plies being embossed according to an embossing pattern that includes projections of a density of at least 30 per cm 2 arranged in zones, each zone including at least 10 projections that are aligned in at least two rows, wherein said embossing pattern further includes at least two of said zones which are adjacent, each zone having a different projection density and/or a different surface area at peaks of said projections so as to produce a relief effect on said product, and wherein a difference in the projections density and/or surface area at the peaks of the projections is greater than 7%, and wherein each peak of the peaks of said projections has a surface area comprising from 0.03 to 0.8 mm 2 .
2. A product according to claim 1 , wherein a ratio between the surface area at the peaks of said projections and the embossed surface area is between 1 and 60%.
3. A product according to claim 2 , wherein the ratio between the surface area at the peaks of said projections and the embossed surface area is between 7 and 45%.
4. A product according to claim 1 , wherein the embossing pattern includes at least one first zone with projections of a first density, whereby said at least one first zone is surrounded by at least one second zone with projections of a second density that is greater than the first density.
5. A product according to claim 1 , wherein the embossing pattern includes at least one linear element.
6. A product according to claim 5 , wherein the at least one linear element defines a geometric grid.
7. A product according to claim 6 , wherein the at least one linear element defines an aesthetic pattern.
8. A product according to claim 5 , wherein the at least one linear element defines an aesthetic pattern.
9. A product according to claim 1 , wherein the at least two plies are assembled together by an adhesive.
10. A product according to claim 1 , wherein said product contains at least two embossed plies.
11. A product according to claim 10 , wherein said product further comprises a third ply which is non-embossed and is arranged between the two embossed plies.