Fibrous structures

Patent metadata

Field	Value
Publication number	US-11408129-B2
Application number	US-201916708571-A
Country	US
Kind code	B2
Filing date	Dec 10, 2019
Priority date	Dec 10, 2018
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

Abstract

A fibrous structure includes a plurality of discrete wet-formed knuckles extending from a pillow surface of the fibrous structure, wherein the plurality of discrete wet-formed knuckles are arranged in a pattern organized in an X-Y coordinate plane, each of the wet-formed knuckles of the pattern is included within a plurality of rows oriented in an X-direction and a plurality of rows oriented in a Y-direction, and each row in the X-direction is curved in a repeating wave pattern, wherein the repeating wave pattern has an amplitude and a wavelength, and wherein the amplitude is between about 0.75 mm and about 3.0 mm, and the wavelength is between about 25.0 mm and about 125.0 mm.

First claim

What is claimed is:

1. A fibrous structure comprising a plurality of discrete wet-formed knuckles extending from a pillow surface of the fibrous structure, wherein the plurality of discrete wet-formed knuckles are arranged in a pattern organized in an X-Y coordinate plane, each of the wet-formed knuckles of the pattern is included within a plurality of rows oriented in an X-direction and a plurality of rows oriented in a Y-direction, and each row oriented in the X-direction is curved in a repeating wave pattern, wherein the repeating wave pattern has an amplitude and a wavelength, and wherein the amplitude is between about 0.75 mm and about 3.0 mm, and the wavelength is between about 25.0 mm and about 125.0 mm.

2. The fibrous structure of claim 1 , wherein the wave pattern is a sinusoidal wave pattern.

3. The fibrous structure of claim 1 , wherein the amplitude is between about 1.0 mm and about 2.5 mm.

4. The fibrous structure of claim 1 , wherein the wavelength is between about 25.0 mm and about 75.0 mm.

5. The fibrous structure of claim 1 , wherein an amplitude to wavelength ratio is between about 0.025 to about 0.05.

6. The fibrous structure of claim 1 , wherein the plurality of discrete wet-formed knuckles are characterized by:
1) each of the discrete wet-formed knuckles within the pattern have substantially the same shape, and
2) at least two of the plurality of discrete wet-formed knuckles within the pattern have varying size.

7. The fibrous structure of claim 1 , wherein the fibrous structure has a TS7 (which correlates with real material softness) of between about 0.01 dB V 2 rms and about 20.00 dB V 2 rms, and an SST (Slope of the Square Root of Time) rate of between about 1.60 g/sec 0.5 and about 2.50 g/sec 0.5 .

8. The fibrous structure of claim 1 , wherein the fibrous structure has a TS7 of between about 0.01 dB V 2 rms and about 20.00 dB V 2 rms, and a Plate Stiffness of between about 12 N*mm and about 20 N*mm.

9. The fibrous structure of claim 1 , wherein the fibrous structure has a TS7 of between about 0.01 dB V 2 rms and about 20.00 dB V 2 rms, and a Resilient Bulk of between about 85.0 cm 3 /g and about 110.0 cm 3 /g.

10. The fibrous structure of claim 1 , wherein the fibrous structure has a TS7 of between about 0.01 dB V 2 rms and about 20.00 dB V 2 rms, and a Total Wet Tensile of between about 400 g/in and about 900 g/in.

11. A fibrous structure comprising a plurality of discrete wet-formed knuckles extending from a pillow surface of the fibrous structure, wherein the plurality of discrete wet-formed knuckles are arranged in a pattern organized in an X-Y coordinate plane, each of the wet-formed knuckles of the pattern is included within a plurality of rows oriented in an X-direction and a plurality of rows oriented in a Y-direction, and each row oriented in both the X-direction and the Y-direction is curved in a repeating wave pattern, wherein the repeating wave pattern has an amplitude and a wavelength, and wherein the amplitude is between about 0.75 mm and about 3.0 mm, and the wavelength is between about 25.0 mm and about 125.0 mm.

12. The fibrous structure of claim 11 , wherein the wave pattern is a sinusoidal wave pattern.

13. The fibrous structure of claim 11 , wherein the amplitude is between about 1.0 mm and about 2.5 mm.

14. The fibrous structure of claim 11 , wherein the wavelength is between about 25.0 mm and about 75.0 mm.

15. The fibrous structure of claim 11 , wherein an amplitude to wavelength ratio is between about 0.025 to about 0.05.

16. The fibrous structure of claim 11 , wherein the fibrous structure has a TS7 of between about 0.01 dB V 2 rms and about 20.00 dB V 2 rms, and an SST rate of between about 1.60 g/sec 0.5 and about 2.50 g/sec 0.5 .

17. The fibrous structure of claim 11 , wherein the fibrous structure has a TS7 of between about 0.01 dB V 2 rms and about 20.00 dB V 2 rms, and a Plate Stiffness of between about 12 N*mm and about 20 N*mm.

18. The fibrous structure of claim 11 , wherein the fibrous structure has a TS7 of between about 0.01 dB V 2 rms and about 20.00 dB V 2 rms, and a Resilient Bulk of between about 85.0 cm 3 /g and about 110.0 cm 3 /g.

19. The fibrous structure of claim 11 , wherein the fibrous structure has a TS7 of between about 0.01 dB V 2 rms and about 20.00 dB V 2 rms, and a Total Wet Tensile of between about 400 g/in and about 900 g/in.

20. A fibrous structure comprising a plurality of discrete wet-formed pillows forming a pillow surface of the fibrous structure, wherein the plurality of discrete wet-formed pillows are arranged in a pattern organized in an X-Y coordinate plane, each of the wet-formed pillows of the pattern is included within a plurality of rows oriented in an X-direction and a plurality of rows oriented in a Y-direction, and each row oriented in the X-direction is curved in a repeating wave pattern, wherein the repeating wave pattern has an amplitude and a wavelength, and wherein the amplitude is between about 0.75 mm and about 3.0 mm, and the wavelength is between about 25.0 mm and about 125.0 mm.

21. The fibrous structure of claim 20 , wherein the wave pattern is a sinusoidal wave pattern.

22. The fibrous structure of claim 20 , wherein the amplitude is between about 1.0 mm and about 2.5 mm.

23. The fibrous structure of claim 20 , wherein the wavelength is between about 25.0 mm and about 75.0 mm.

24. The fibrous structure of claim 20 , wherein an amplitude to wavelength ratio is between about 0.025 to about 0.05.

Assignees

• Procter & Gamble

Inventors

• Polat Osman
• Redd Charles Allen
• Kien Kathryn Christian
• Bankemper Anthony Paul

Classifications

• D21F11/006

  Making patterned paper · CPC title

• D21H27/002 Primary

  Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00) · CPC title

• D10B2401/00

  Physical properties · CPC title

• D21H27/02 Primary

  Patterned paper (patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00) · 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