EP1808528A1 - Toile de machine à papier dotée d'un revêtement antiadhérent - Google Patents

Toile de machine à papier dotée d'un revêtement antiadhérent Download PDF

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Publication number
EP1808528A1
EP1808528A1 EP20070100593 EP07100593A EP1808528A1 EP 1808528 A1 EP1808528 A1 EP 1808528A1 EP 20070100593 EP20070100593 EP 20070100593 EP 07100593 A EP07100593 A EP 07100593A EP 1808528 A1 EP1808528 A1 EP 1808528A1
Authority
EP
European Patent Office
Prior art keywords
fabric
paper
surface matrix
paper side
complex
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.)
Withdrawn
Application number
EP20070100593
Other languages
German (de)
English (en)
Inventor
Robert Crook
Sanjay Patel
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1808528A1 publication Critical patent/EP1808528A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths
    • 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
    • D21F1/0027—Screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/083—Multi-layer felts
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/086—Substantially impermeable for transferring fibrous webs
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]

Definitions

  • the present invention relates to paper machine fabrics.
  • Paper machine fabrics are conventionally used in the manufacture of paper towels, facial tissue, bathroom tissue, table napkins and the like.
  • U.S. Pat. Nos. 6,017,417 and 6,331,230 and Publication WO 01/44568 describe the manufacture of tissue and the like using through-air drying.
  • a slurry of cellulosic fibers is fed onto a forming fabric or between two forming fabrics, where the paper web is formed and partially dewatered before the web is transferred, often via a transfer fabric, to a through-air drying (TAD) fabric for further water removal by way of one or multiple TAD units.
  • TAD through-air drying
  • the web is then fed by way of the TAD fabric to a presser roll where a nip is formed between the TAD fabric and a Yankee cylinder.
  • the paper web transfers to the Yankee cylinder where further drying and creping takes place.
  • the Yankee cylinder is removed, thus eliminating the pressing nip.
  • the web is transferred from the TAD fabric to a further fabric.
  • a significant problem with the use of a chemical release agent is the fact that the agent remains in the recycled white water system.
  • Most modern paper machines tend to have closed water systems, and so the water that is removed from the cellulosic stock during the papermaking process and the reclaimed fabric shower water is collected, recycled and then reused as shower water and also to dilute the new cellulosic stock.
  • the water is stored in holding tanks. In these tanks, minute beads of chemical release agent coalesce into larger globules. It is extremely difficult to separate the chemical release agent from the water and the globules end up coating these tanks, which finally make their way back into the system.
  • the globules find their way into the cellulosic stock, there are potentially a number of problems, all of which result in a reduction of paper quality and machine operating efficiency.
  • thermoset polyurethane TPU
  • hydrophobic materials hydrophobic materials
  • a paper machine fabric which comprises a fabric having a roll side and a paper side and a surface matrix on the paper side; and a chrome complex treatment on the surface matrix.
  • the chrome complex treatment serves to enhance release properties of the fabric without requiring sanding of the fabric and without using materials which interfere with the complex paper system and/or the paper making machine itself. Further, the treatment is applied in a water based system, and chemically reacts with the surface of the fabric.
  • the chrome complex treatment can preferably be an organic metal complex, preferably a fatty acid metal complex.
  • Figure 1 schematically illustrates a fabric having a coating according to the invention.
  • the invention relates to fabric for papermaking machines and, more particularly, to a treatment for such fabric which improves the release properties of the fabric.
  • the treatment according to the invention is applied to the paper side of a fabric, preferably a fabric 10 having a base 12 and batt layers 14, 16 attached at each side of base 12.
  • a surface matrix 18 can be attached to or otherwise defined on a surface of batt layer 14, and the treatment 20 according to the invention is preferably applied at least to surface matrix 18.
  • the surface treatment comprises a water based system containing a chrome complex.
  • a chrome complex is a family of products marketed by Dupont under the trademark Quillon®, certain examples of which include chromium pentahydroxy(tetradecanoato)di-; tetradecanoato chromic chloride hydroxide; octadecanoato chromic chloride hydroxide and others.
  • the treatment composition can be applied in relatively low concentrations, for example at concentrations of less than 10% volume, preferably at concentrations of less than 2% volume.
  • the composition can be applied using known techniques such as spray or kiss roll application.
  • the composition is preferably dried and cured, preferably at a temperature of about 100°C plus or minus about 50°C. This leads to chemical reaction of the composition with the fabric which leads to desirable release properties of the fabric. It is believed that the composition reacts with the polar groups of the fabric, and when cured the complex forms an insoluble layer of a polymerized chromium network chemically bonded to the substrate. Hydrophobic fatty acid chains of the composition are left oriented away from the surface of the substrate, giving rise to a unique and unexpected release property.
  • the treatment according to the present invention can advantageously be applied to various papermaking machine clothing or fabric and other industrial fabrics, for example including forming fabrics, press fabrics, impermeable press belts, dryer fabrics, TAD and other industrial fabrics, and can be applied to rolls and sleeves.
  • composition of the present invention can also be engineered with other aqueous polymer systems such as poly vinyl alcohol (PVA) or poly vinyl acetate (PVAc) to provide control over surface energy, wetting behavior and the like.
  • PVA poly vinyl alcohol
  • PVAc poly vinyl acetate
  • a particular advantage of the present invention is that the fabric does not need to be sanded or ground or otherwise treated in a potentially harmful way in order to apply the composition.
  • the water based system which is preferably used to apply the composition is environmentally friendly, and does not contaminate the white water of the process or the wet cellulosic material.
  • An impermeable press belt having a 1.0 mm thick surface matrix consisting of TPU and embedded nylon fibers is treated using Quilon S and/or Quilon L solution.
  • the solution is applied by spray and/or kiss roll application at concentrations of 0-10% by volume, and then dried and cured at 100°C. Following this treatment, the treated fabrics were tested and surface energy dropped by approximately 20% as compared to the normal TPU. Thus, the treated fabric has a marked improvement in release properties.
EP20070100593 2006-01-17 2007-01-16 Toile de machine à papier dotée d'un revêtement antiadhérent Withdrawn EP1808528A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75965006P 2006-01-17 2006-01-17

Publications (1)

Publication Number Publication Date
EP1808528A1 true EP1808528A1 (fr) 2007-07-18

Family

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Family Applications (1)

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EP20070100593 Withdrawn EP1808528A1 (fr) 2006-01-17 2007-01-16 Toile de machine à papier dotée d'un revêtement antiadhérent

Country Status (2)

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US (1) US20070167099A1 (fr)
EP (1) EP1808528A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7500295B2 (en) * 2006-07-05 2009-03-10 American Linc, Llc System, apparatus, and method of reducing production loss having a counterband
DE102007019960A1 (de) * 2007-04-27 2008-11-06 Voith Patent Gmbh Verbesserungen bei Transferbändern, Hintergrund der Erfindung
AU2008251023B2 (en) * 2007-05-15 2013-02-07 Chronologic Pty Ltd Method and system for reducing triggering latency in universal serial bus data acquisition
WO2010030298A1 (fr) 2008-09-11 2010-03-18 Albany International Corp. Bande perméable pour la fabrication de mouchoirs, serviettes ou non-tissés
US8822009B2 (en) 2008-09-11 2014-09-02 Albany International Corp. Industrial fabric, and method of making thereof
US8764943B2 (en) 2008-12-12 2014-07-01 Albany International Corp. Industrial fabric including spirally wound material strips with reinforcement
US8728280B2 (en) 2008-12-12 2014-05-20 Albany International Corp. Industrial fabric including spirally wound material strips with reinforcement
KR101659370B1 (ko) * 2008-12-12 2016-09-23 알바니 인터내셔널 코포레이션 나선형으로 감은 재료 스트립들을 포함하는 산업용 직물
PL2391768T3 (pl) * 2009-01-28 2021-11-15 Albany International Corp. Tkanina papiernicza do wytwarzania wyrobów bibułkowych i ręcznikowych, oraz system i sposób wytwarzania takich tkanin

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839142A (en) 1971-09-20 1974-10-01 Wiggins Teape Res Dev Forming non-woven fibrous material
US4759976A (en) 1987-04-30 1988-07-26 Albany International Corp. Forming fabric structure to resist rewet of the paper sheet
US6017417A (en) 1994-04-12 2000-01-25 Kimberly-Clark Worldwide, Inc. Method of making soft tissue products
WO2001044568A1 (fr) 1999-12-16 2001-06-21 Valmet-Karlstad Ab Machine a fabriquer le papier a air traversant simplifiee possedant une section de formation entre deux toiles
US6331230B1 (en) 1997-10-31 2001-12-18 Kimberly-Clark Worldwide, Inc. Method for making soft tissue

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2273040A (en) * 1940-09-26 1942-02-17 Du Pont Chemical process and product
US3177113A (en) * 1963-08-27 1965-04-06 Ultra Plating Corp Chromium coated papermaking wire
US3490925A (en) * 1967-03-15 1970-01-20 Diamond Shamrock Corp Water repellent
US4138417A (en) * 1975-12-17 1979-02-06 Asahi Glass Company, Ltd. Process for producing perfluorocarboxylic acid
EP1068387A2 (fr) * 1998-03-24 2001-01-17 Avantgarb LLC Tissus et autres matieres modifiees, procedes d'obtention

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839142A (en) 1971-09-20 1974-10-01 Wiggins Teape Res Dev Forming non-woven fibrous material
US4759976A (en) 1987-04-30 1988-07-26 Albany International Corp. Forming fabric structure to resist rewet of the paper sheet
US6017417A (en) 1994-04-12 2000-01-25 Kimberly-Clark Worldwide, Inc. Method of making soft tissue products
US6331230B1 (en) 1997-10-31 2001-12-18 Kimberly-Clark Worldwide, Inc. Method for making soft tissue
WO2001044568A1 (fr) 1999-12-16 2001-06-21 Valmet-Karlstad Ab Machine a fabriquer le papier a air traversant simplifiee possedant une section de formation entre deux toiles

Also Published As

Publication number Publication date
US20070167099A1 (en) 2007-07-19

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