Absorbent paper product and method for manufacturing such absorbent paper product

Patent metadata

Field	Value
Publication number	US-10344432-B2
Application number	US-201816126528-A
Country	US
Kind code	B2
Filing date	Sep 10, 2018
Priority date	Apr 2, 2014
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A method for manufacturing a paper product including providing a forming fabric and forming a web on the fabric. The forming fabric includes warp knuckles of directly adjacent warp yarns overlapping the cross-machine direction forming a continuous warp knuckle pattern angled to the machine and cross-machine directions. A first line connecting the centers of first two directly adjacent warp knuckles of the continuous warp knuckle pattern is angled to the machine direction at a first angle different from a second angle of a second line connecting the centers of second two directly adjacent warp knuckles of the continuous warp knuckle pattern so that a line connecting the centers of all warp knuckles forming the continuous warp knuckle pattern is non-straight. At least 50% of all the continuous warp knuckle patterns have an overlap of at least three consecutive weft yarns.

First claim

The invention claimed is:

1. A method for manufacturing a paper product, comprising:
providing a forming fabric or a drying fabric, the fabric having a plurality of machine direction oriented warp knuckles formed by warp yarns of the fabric floating over weft yarns of the fabric, wherein warp knuckles of directly adjacent warp yarns overlap in the cross-machine direction forming a continuous warp knuckle pattern angled to the machine and cross-machine directions, wherein a first line connecting the centers of first two directly adjacent warp knuckles of the continuous warp knuckle pattern is angled to the machine direction at a first angle different from a second angle of a second line connecting the centers of second two directly adjacent warp knuckles of the continuous warp knuckle pattern so that a line connecting the centers of all warp knuckles forming the continuous warp knuckle pattern is non-straight, and wherein at least 50% of all the directly adjacent warp knuckles have an overlap of at least three consecutive weft yarns; and
forming or drying a fibrous web on the fabric.

2. The method according to claim 1 , wherein the warp knuckles of the fabric forming the continuous pattern have a float length of at least 4.

3. The method according to claim 1 , wherein the fabric has only weft knuckles with a float length of less than 4.

4. The method according to claim 1 , wherein the float length of at least one of the first two adjacent warp knuckles or the second two adjacent warp knuckles is the same.

5. The method according to claim 1 , wherein the average float length of all warp knuckles forming the continuous pattern in a pattern repeat is 4 to 8.

6. The method according to claim 1 , wherein at least 50 percent of the warp knuckles of a pattern repeat forming the continuous compressed pattern have a float length difference of not more than 25 percent of the average float length of the warp knuckles forming the continuous compressed pattern in the pattern repeat.

7. A method of using a fabric in the manufacture of a paper product, comprising providing the fabric in a paper making machine, the fabric comprising a plurality of machine direction oriented warp knuckles formed by warp yarns of the fabric floating over weft yarns of the fabric, wherein warp knuckles of directly adjacent warp yarns overlap in the cross-machine direction forming a continuous warp knuckle pattern angled to the machine and cross-machine directions, wherein a first line connecting the centers of first two directly adjacent warp knuckles of the continuous warp knuckle pattern is angled to the machine direction at a first angle different from a second angle of a second line connecting the centers of second two directly adjacent warp knuckles of the continuous warp knuckle pattern so that a line connecting the centers of all warp knuckles forming the continuous warp knuckle pattern is non-straight, and wherein at least 50% of all the directly adjacent warp knuckles have an overlap of at least three consecutive weft yarns.

8. The method according to claim 7 , wherein the warp knuckles of the fabric forming the continuous pattern have a float length of at least 4.

9. The method according to claim 7 , wherein the fabric has only weft knuckles formed by the weft yarns of the fabric floating over the warp yarns with a float length of less than 4.

10. The method according to claim 7 , wherein the float length of at least one of the first two directly adjacent warp knuckles or the second two directly adjacent warp knuckles is the same.

11. The method according to claim 7 , wherein the average float length of all warp knuckles forming the continuous pattern in a pattern repeat is 4 to 8.

12. The method according to claim 7 , wherein at least 50 percent of the warp knuckles forming the continuous compressed pattern have a float length difference of not more than 25 percent of the average float length of the warp knuckles forming the continuous compressed pattern in the pattern repeat.

Assignees

• Sca Hygiene Prod Ab

Inventors

• Lamb Hans-Jürgen

Classifications

• D21H27/02 Primary

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• D21F11/006

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• D21F1/0027

  Screen-cloths · CPC title

• D21F11/00

  Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines · CPC title

• D21F1/00

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