Absorbent paper product and method for manufacturing such absorbent paper product

Abstract

A paper product including a fibrous web manufactured in a paper making machine including a fabric is disclosed. The web has a first and an opposite second side. At least one of the first and second sides of the web has, in a pattern repeat, a number of longitudinal, machine direction oriented compressed areas with a first density of fibers and a number of machine direction oriented bulky areas with a second density of fibers lower than the first density. The compressed areas correspond to machine direction oriented warp knuckles of warp yarns floating over weft yarns, and adjacent compressed areas, corresponding to warp knuckles of directly adjacent warp yarns, overlap in the cross-machine direction forming a continuous compressed pattern angled to the machine and cross-machine directions. A first line connects the centers of first two directly adjacent compressed areas of the continuous compressed pattern at a first angle different from a second angle of a second line connecting the centers of second two directly adjacent compressed areas of the continuous compressed pattern so that a line connecting the centers of all compressed areas forming the continuous compressed pattern is non-straight.

Description

CROSS-REFERENCE TO PRIOR APPLICATION[0001]This application is a §371 National Stage Application of PCT International Application No. PCT / EP2014 / 056595 filed Apr. 2, 2016, which is incorporated herein in its entirety.TECHNICAL FIELD[0002]The present disclosure relates to the manufacture of a paper product, particularly an absorbent paper product, such as a hygiene or wiping product. In general, the disclosure relates to structuring a fibrous web, constituting a part of the paper product, by means of a fabric or wire used in the papermaking process (the terms “wire” and “fabric” are used synonymously throughout the application).[0003]The fibrous web may be made of tissue paper or nonwoven. Fibrous webs of the same or a different material may be combined in the final paper product.[0004]A tissue paper is defined as a soft absorbent paper having a low basis weight. One generally selects a basis weight of 8 to 40 g / m2, especially 10 to 25 g / m2 per ply. The total basis weight of multiple-...

AI Technical Summary

Benefits of technology

The patent text describes a method for making a paper product with a distinct pattern that looks soft and bulky. The pattern is made during the papermaking process and helps to support the softness and absorbency of the paper. The pattern is designed in a way that it is less harmonized and less strict in its appearance, which improves the soft and absorbent perception of the user without compromising the paper's absorbency, wet strength, or bulk. The outer contour of the pattern is wavy or curved, which further enhances the soft and bulky appearance. Additionally, the fibrous web is subject to a creping process, which creates cross-machine wrinkles that are delimited by compressed areas of adjacent patterns. This disinegrates the visual geometric strictness of the pattern and improves the soft and bulky perception of the paper product.

Problems solved by technology

This relatively uniform and strict geometric arrangement is not capable of providing the fibrous web as such with a unique patterning which would make the paper product clearly distinguishable from other products.

Additionally, also this kind of patterning gives the fibrous web a relatively stiff outer appearance which is perceived negative by the consumer.

On the other hand, the converting processes add on the manufacturing costs and, therefore, increase the price of the products.

This is particularly disadvantageous when considering products of the lower price segment, such as one ply paper products including only one fibrous web or ply, respectively.

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