CA2408146A1 - Paper product having improved fuzz-on-edge property - Google Patents

Paper product having improved fuzz-on-edge property Download PDF

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Publication number
CA2408146A1
CA2408146A1 CA002408146A CA2408146A CA2408146A1 CA 2408146 A1 CA2408146 A1 CA 2408146A1 CA 002408146 A CA002408146 A CA 002408146A CA 2408146 A CA2408146 A CA 2408146A CA 2408146 A1 CA2408146 A1 CA 2408146A1
Authority
CA
Canada
Prior art keywords
base web
web
shear
paper product
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002408146A
Other languages
French (fr)
Other versions
CA2408146C (en
Inventor
Brian Klaubert
Paul Arnold
Susan E. Smith
Michael A. Hermans
Phil S. Lin
Robert A. Drew
Patricia Riedl
Peter J. Allen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kimberly Clark Worldwide Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2408146A1 publication Critical patent/CA2408146A1/en
Application granted granted Critical
Publication of CA2408146C publication Critical patent/CA2408146C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/14—Making cellulose wadding, filter or blotting paper
    • D21F11/145—Making cellulose wadding, filter or blotting paper including a through-drying process
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/04—Head boxes of cylinder machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/006—Making patterned paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/14—Making cellulose wadding, filter or blotting paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/005—Mechanical treatment
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/38—Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24446—Wrinkled, creased, crinkled or creped
    • Y10T428/24455—Paper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24446—Wrinkled, creased, crinkled or creped
    • Y10T428/24455—Paper
    • Y10T428/24463—Plural paper components

Abstract

A process for increasing the tactile properties of a base web (38) without adversely effecting the strength of the web (38) is disclosed. In one embodiment, the process includes the steps of placing a base web (38) between a first moving conveyor (60) and a second moving conveyor (62). The conveyors are then wrapped around a shear-inducing roll (64) which creates shear forces that act upon the base web. The shear forces disrupt the web (38), increasing the softness and decreasing the stiffness of the web (38). The shear-inducing roll (64) typically has a relatively small diameter. In some applications, more than one shear-inducing roll (64) may be incorporated into the system.
Base webs (38) made according to the present invention have been found to have improved void-volume and fuzz-on-edge properties.

Claims (40)

1. A process for producing base webs comprising:
forming a base web containing pulp fibers;
placing said base web between a first moving conveyor and a second moving conveyor;
guiding said first moving conveyor and said second moving conveyor around at least one shear-inducing element while said base web is positioned between said conveyors, said first and second conveyors being sufficiently wrapped around said at least one shear-inducing element so as to create shear forces that act upon the base web and increase the softness of the web.
2. A process as defined in claim 1, wherein said shear-inducing element comprises a roll having a diameter of less than about 10 inches.
3. A process as defined in claim 1, wherein said first and second conveyors are guided around a first support roll prior to said shear-inducing element and around a second support roll after said shear-inducing element, each of said first and second support rolls including a center that is located in a common plane, said shear-inducing element being positioned in between said first and said second support rolls and positioned a preselected distance from said plane.
4. A process as defined in claim 1, wherein said first moving conveyor and said second moving conveyor are guided around at least two shear-inducing elements.
5. A process as defined in claim 1, wherein said base web comprises a stratified web.
6. A process as defined in claim 1, wherein said base web is a stratified web including a middle layer positioned between a first outer layer and a second outer layer, said first and second outer layers having a greater tensile strength than said middle layer.
7. A process as defined in claim 1, wherein said base web is a stratified web including a middle layer positioned between a first outer layer and a second outer layer, said middle layer having a tensile strength greater than said first and second outer layers.
8. A process as defined in claim 1, wherein said base web comprises a single ply web having a basis weight of at least 20 gsm.
9. A process as defined in claim 1, wherein said base web when guided around said shear-inducing element has a moisture content of less than about 10% by weight.
10. A process as defined in claim 1, wherein said first moving conveyor and said second moving conveyor are under a tension of at least 5 pounds per linear inch when guided around said shear-inducing element.
11. A process as defined in claim 1, wherein said first and second conveyors are wrapped around at least 3 shear-inducing elements.
12. A process as defined in claim 1, wherein said first and second conveyors are wrapped around at least 5 shear-inducing elements.
13. A process as defined in claim 1, wherein said first and second conveyors are wrapped around said shear-inducing element at least 30°.
14. A process as defined in claim 1, wherein said shear-inducing element has an effective diameter of less than about 7 inches.
15. A process as defined in claim 1, wherein said shear-inducing element has an effective diameter of from about 2 inches to about 5 inches.
16. A process as defined in claim 1, wherein said first conveyor and said second conveyor are wrapped around said shear-inducing element at least 50°.
17. A paper product comprising:
a nonwoven base web, said base web containing pulp fibers, said base web having a void volume greater than 12 g/g.
18. A paper product as defined in claim 17, wherein said base web has a basis weight of greater than 20 gsm.
19. A paper product as defined in claim 17, wherein said base web has a basis weight of greater than 30 gsm.
20. A paper product as defined in claim 17, wherein said paper product comprises a single-ply product.
21. A paper product as defined in claim 17, wherein said base web has a geometric mean tensile strength of greater than about 170 g/in.
22. A paper product as defined in claim 17, wherein said base web has a geometric mean tensile strength of greater than about 200 g/in.
23. A paper product as defined in claim 17, wherein said base web has a fuzz-on-edge of greater than about 2.2 mm/mm.
24. A paper product as defined in claim 17, wherein said base web has a fuzz-on-edge of greater than about 2.5 mm/mm.
25. A paper product as defined in claim 17, wherein said base web has a basis weight of greater than about 25 gsm, has a geometric mean tensile strength of greater than about 170 g/in, and has a fuzz-on-edge of greater than about 2.2 mm/mm.
26. A paper product as defined in claim 17, wherein said base web comprises an uncreped, through-air-dried web.
27. A paper product comprising:
a nonwoven base web, said base web containing pulp fibers, said base web having a fuzz-on-edge of greater than about 2.2 mm/mm.
28. A paper product as defined in claim 27, wherein said base web has a basis weight of greater than 20 gsm.
29. A paper product as defined in claim 28, wherein said base web has a void volume greater than 12 g/g.
30. A paper product as defined in claim 27, wherein said base web has a fuzz-on-edge of greater than about 2.5 mm/mm.
31. A paper product as defined in claim 27, wherein said paper product comprises a single-ply product.
32. A paper product as defined in claim 27, wherein said base web has a geometric mean tensile strength of greater than about 170 g/in.
33. A paper product as defined in claim 27, wherein said base web has a geometric mean tensile strength of greater than about 200 g/in.
34. A paper product as defined in claim 27, wherein said base web comprises an uncreped, through-air-dried web.
35. A process for producing base webs comprising:
forming a base web containing pulp fibers; and subjecting said base web to a shearing force in an amount sufficient to increase the void volume of said base web, said base web having a void volume of greater than 12 g/g.
36. A process as defined in claim 35, wherein said base web is subjected to said shearing force in an amount sufficient to also increase the fuzz-on-edge properties of the web, said base web having a fuzz-on-edge in an amount of at least 2.2 mm/mm.
37. A process as defined in claim 35, wherein said base web has a moisture content of less than about 10% by weight when subjected to said shearing force.
38. A process as defined in claim 35, wherein said base web comprises a single-ply web, said base web having a basis weight of at least about 20 gsm.
39. A process as defined in claim 35, wherein said base web is subjected to said shearing force by placing said base web in between a first moving conveyor and a second moving conveyor, and guiding said first moving conveyor and said second moving conveyor around a shear-inducing roll while said base web is positioned between said conveyors.
40. A process as defined in claim 39, wherein said first and second conveyors are wrapped around said shear-inducing roll at least 50°.
CA002408146A 2000-05-12 2001-05-11 Paper product having improved fuzz-on-edge property Expired - Fee Related CA2408146C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US20408300P 2000-05-12 2000-05-12
US60/204,083 2000-05-12
PCT/US2001/040715 WO2001085438A2 (en) 2000-05-12 2001-05-11 Process for increasing the softness of base webs and products made therefrom

Publications (2)

Publication Number Publication Date
CA2408146A1 true CA2408146A1 (en) 2001-11-15
CA2408146C CA2408146C (en) 2010-02-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002408146A Expired - Fee Related CA2408146C (en) 2000-05-12 2001-05-11 Paper product having improved fuzz-on-edge property

Country Status (11)

Country Link
US (2) US6585855B2 (en)
EP (1) EP1282506B1 (en)
KR (1) KR100849313B1 (en)
CN (1) CN1171721C (en)
AR (1) AR036068A1 (en)
AU (2) AU2001259850B8 (en)
BR (1) BR0110772B1 (en)
CA (1) CA2408146C (en)
DE (2) DE60140492D1 (en)
MX (1) MXPA02011058A (en)
WO (1) WO2001085438A2 (en)

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EP1282506A2 (en) 2003-02-12
CA2408146C (en) 2010-02-02
AU2001259850B2 (en) 2004-12-16
AR036068A1 (en) 2004-08-11
BR0110772B1 (en) 2011-01-25
DE60135214D1 (en) 2008-09-18
AU2001259850B8 (en) 2013-01-24
WO2001085438A2 (en) 2001-11-15
US6607638B2 (en) 2003-08-19
BR0110772A (en) 2003-09-30
CN1171721C (en) 2004-10-20
US20020088592A1 (en) 2002-07-11
KR100849313B1 (en) 2008-07-29
AU5985001A (en) 2001-11-20
KR20030009483A (en) 2003-01-29
US20030000664A1 (en) 2003-01-02
WO2001085438A3 (en) 2002-06-20
CN1429147A (en) 2003-07-09
DE60140492D1 (en) 2009-12-24
US6585855B2 (en) 2003-07-01
EP1282506B1 (en) 2008-08-06
MXPA02011058A (en) 2003-03-10

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