EP0972876A2 - Améliorations portant sur des toiles de machine à papier - Google Patents
Améliorations portant sur des toiles de machine à papier Download PDFInfo
- Publication number
- EP0972876A2 EP0972876A2 EP99305526A EP99305526A EP0972876A2 EP 0972876 A2 EP0972876 A2 EP 0972876A2 EP 99305526 A EP99305526 A EP 99305526A EP 99305526 A EP99305526 A EP 99305526A EP 0972876 A2 EP0972876 A2 EP 0972876A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- areas
- fabric according
- fabric
- paper
- 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
Links
Images
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
- D21F11/006—Making patterned paper
-
- 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
- D21F1/0063—Perforated sheets
Definitions
- This invention relates to improvements in papermaking fabrics.
- WO 96/35018 discloses a process of forming patterned or decorative markings on tissues including the use of a forming fabric with areas of relatively slow water drainage. Where a fibre slurry containing both relatively long and relatively short fibres is used, the provision of areas of different water drainage rates causes the markings to be delineated by areas of different fibre composition, or shorter fibre lengths, preferably avoiding areas of slower drainage.
- the areas of relatively slow water drainage are provided by providing additional filaments over or within the fabric weave pattern, or by a film or coating which blocks or fills void space within the fabric. The area does not necessarily protrude from the surface of the fabric.
- An object of this invention therefore is to provide a papermaking fabric which can enable such effects to be achieved.
- a papermaking fabric comprises a paper-contacting surface layer of partially fused particles, the paper-contacting layer having a surface which comprises areas which are proud of or recessed relative to the main plane of the paper-contacting surface.
- the invention provides a fabric comprising a base layer or substrate, having decoratively shaped areas on the web contacting surface, said areas comprising sintered particles which are fused or bonded to the substrate.
- the surface layer is normally supported by a base layer which may be a woven or nonwoven fabric, or a membrane (which may be perforated or in the form of a grid) of nonwoven material such as a sheet of a synthetic plastics material.
- a base layer which may be a woven or nonwoven fabric, or a membrane (which may be perforated or in the form of a grid) of nonwoven material such as a sheet of a synthetic plastics material.
- the surface layer of partially fused particles may include a reinforcing textile structure which is fully or partially embedded in the layer of partially fused particles.
- the partially fused particles may form a sintered matrix, and be composed of sintered polymer or metal particles or fibres, or a mix of particles and fibres.
- the reinforcing textile structure may comprise a woven or nonwoven fabric, or a random but generally uniform dispersion of chopped fibres.
- the fibres or yarns of the reinforcing structure may be bicomponent structures incorporating materials of different melting point.
- the fibres or yarns may preferably have a higher melting point than the reinforcing structure.
- Raised areas may be provided by forming an additional thickness of the sintered matrix having the same density and thus the same drainage flow rate as the main body of the matrix.
- recessed areas may be provided by omission of a thickness of the sintered matrix so that the matrix again has the same density and drainage flow rate as the main body of the matrix.
- the raised and/or recessed areas may be provided by moulding of the paper-contacting surface of the sintered matrix, e.g. using a patterned platten or roller to impress the surface.
- recessed areas will have a greater density and thus reduced drainage flow rate than the main body of the matrix, and raised areas will have a lesser density and thus increased drainage flow rate with respect to the main body of the matrix.
- the fabric is to be used as a dryer fabric, for example in a through-air-dryer, it is to be noted that the air permeability is the relevant quality which is determined by the matrix density, rather than the drainage rate.
- a support or base fabric which can be a woven fabric, a nonwoven fabric, a membrane or perforated or reticulated membrane or a composite of one or more layers of any of the said materials.
- a layer 11 is provided on at least the paper-contacting side of the base fabric 10 which is formed of a layer of sintered particles and/or fibres of a suitable plastics material such as polyethylene or polypropylene or other materials such as set out in EP-A-653512.
- This layer of sintered material has the fabric 10 embedded wholly within it to form a textile reinforcement structure which is shown diagrammatically as a conventional representation of a woven fabric.
- a nonwoven scrim or a dispersion of chopped fibres may be used instead or additionally.
- the paper-contacting surface 13 has a general or median level 14, to which most of the surface conforms. However, selected raised areas 15 stand proud of the surface level 14, whilst other areas 16 are recessed below the surface level 14. These proud and recessed areas preferably form a pattern which will have a decorative or a functional effect on a paper web formed or carried on the surface 13.
- the proud and recessed areas are formed by moulding of the layer 11 during the process of forming the layer, so that extra material is provided in the raised areas 15, whilst less material is provided in the recessed areas 16. Consequently, the sintered material has essentially the same density in the raised areas 15 and in the recessed areas 16 as elsewhere in the layer 11.
- the fabric according to Fig. 1 produces an embossing effect on any tissue or web formed or carried on the fabric due to the effect of the raised and/or lowered areas. Either the raised areas, or the recessed areas may be omitted.
- a papermachine fabric comprises a base layer 20, which may be any one of the options suggested in the description of Fig. 1 above.
- the base layer 20 carries a layer 21 which consists of a layer of sintered particles and/or fibres of a suitable plastics material, or of a sintered metal, as discussed in EP-A-653512.
- the base layer 10 comprises a reinforcing fabric 22 which is wholly embedded within the sintered layer 21 and may be a woven or nonwoven fabric, or a dispersion of chopped fibres, but is shown as a conventional representation of a woven fabric.
- Layer 21 has a paper-contacting surface 23 which has a general or median plane 24. The surface 23 carries raised areas 25, and recessed areas 26, as in Fig. 1.
- these areas are formed by embossing the layer 21 after formation using a roller or platten press. Consequently the parts of layer 21 below raised areas 25 are less densely compressed than the main part of the layer 21, and the parts of layer 21 below recessed areas 26 are more densely compressed than the main part of the layer 21. This is symbolised by less dense hatching of the raised parts and more dense hatching of the recessed parts.
- the air permeability and water drainage flow rate are differentially effected, so that the fabric not only embosses any tissue formed or carried thereon, but also introduces marking due to different fibre deposition patterns.
- Fig. 3 illustrates a third embodiment, where discrete areas 30 of sintered particles and/or fibres of metal or plastics material are bonded direct to a base layer 31.
- the base layer 31 may again be a substrate comprised of a woven or nonwoven fabric, or a membrane, or a composite of such layers.
- the general or median level 32 of the paper-contacting face of the fabric is provided by the substrate, and raised areas are provided by the discrete areas 30.
- the present invention allows an embossing fabric to be made by a quick single step process and due to integral formation of the decoratively shaped areas from the material forming the web-contacting surface, the resistance of the areas to delamination is increased.
- the sintered areas offer greater resistance to wear than the materials used in the prior art referred to above, and thus the initial distinction of the embossed pattern is maintained over a much greater period.
- Drainage or permeability is varied in the decoratively shaped areas in a highly controlled manner by varying the density of the sintered material.
Landscapes
- Laminated Bodies (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9815142 | 1998-07-14 | ||
GBGB9815142.6A GB9815142D0 (en) | 1998-07-14 | 1998-07-14 | Improvements in papermaking fabrics |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0972876A2 true EP0972876A2 (fr) | 2000-01-19 |
EP0972876A3 EP0972876A3 (fr) | 2001-02-07 |
EP0972876B1 EP0972876B1 (fr) | 2004-01-28 |
Family
ID=10835406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99305526A Expired - Lifetime EP0972876B1 (fr) | 1998-07-14 | 1999-07-12 | Améliorations portant sur des toiles de machine à papier |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0972876B1 (fr) |
AT (1) | ATE258617T1 (fr) |
DE (1) | DE69914413T2 (fr) |
GB (1) | GB9815142D0 (fr) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7514030B2 (en) | 2002-12-30 | 2009-04-07 | Albany International Corp. | Fabric characteristics by flat calendering |
WO2009141134A1 (fr) * | 2008-05-20 | 2009-11-26 | Hans Grossmann | Tamis d'égouttage pour cylindre aspirant d'une machine de fabrication de papier, pour la production de papier à filigrane |
WO2010088359A1 (fr) * | 2009-01-28 | 2010-08-05 | Georgia-Pacific Consumer Products Lp | Feuille absorbante crêpée sur bande, de poids spécifique local variable, préparée à l'aide d'une bande polymérique perforée |
US8388812B2 (en) | 2008-12-12 | 2013-03-05 | Albany International Corp. | Industrial fabric including spirally wound material strips |
US8454800B2 (en) | 2009-01-28 | 2013-06-04 | Albany International Corp. | Industrial fabric for producing tissue and towel products, and method of making thereof |
US8728280B2 (en) | 2008-12-12 | 2014-05-20 | Albany International Corp. | Industrial fabric including spirally wound material strips with reinforcement |
US8758569B2 (en) | 2008-09-11 | 2014-06-24 | Albany International Corp. | Permeable belt for nonwovens production |
US8764943B2 (en) | 2008-12-12 | 2014-07-01 | Albany International Corp. | Industrial fabric including spirally wound material strips with reinforcement |
US8822009B2 (en) | 2008-09-11 | 2014-09-02 | Albany International Corp. | Industrial fabric, and method of making thereof |
FR3024166A1 (fr) * | 2014-07-24 | 2016-01-29 | Kerquest | Procede de fabrication d'un objet a matrice fibreuse et objet obtenu |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996035018A1 (fr) | 1995-05-05 | 1996-11-07 | Kimberly-Clark Worldwide, Inc. | Formation decorative de papier mousseline |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH509465A (de) * | 1970-06-18 | 1971-07-15 | Marx Gmbh J J | Gewebe- oder Vliesband, insbesondere Nass- oder Trockenfilz für Papier- und Zellstoffmaschinen |
EP0653235A1 (fr) * | 1993-11-16 | 1995-05-17 | Scapa Group Plc | Filtre |
ATE163453T1 (de) * | 1993-11-16 | 1998-03-15 | Scapa Group Plc | Papiermaschinenbespannung |
GB9717215D0 (en) * | 1997-08-15 | 1997-10-22 | Scapa Group Plc | Papermaking felts |
-
1998
- 1998-07-14 GB GBGB9815142.6A patent/GB9815142D0/en not_active Ceased
-
1999
- 1999-07-12 AT AT99305526T patent/ATE258617T1/de not_active IP Right Cessation
- 1999-07-12 EP EP99305526A patent/EP0972876B1/fr not_active Expired - Lifetime
- 1999-07-12 DE DE69914413T patent/DE69914413T2/de not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996035018A1 (fr) | 1995-05-05 | 1996-11-07 | Kimberly-Clark Worldwide, Inc. | Formation decorative de papier mousseline |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7514030B2 (en) | 2002-12-30 | 2009-04-07 | Albany International Corp. | Fabric characteristics by flat calendering |
US8968516B2 (en) | 2004-04-14 | 2015-03-03 | Georgia-Pacific Consumer Products Lp | Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt |
US9388534B2 (en) | 2004-04-14 | 2016-07-12 | Georgia-Pacific Consumer Products Lp | Method of making a belt-creped, absorbent cellulosic sheet with a perforated belt |
US9017517B2 (en) | 2004-04-14 | 2015-04-28 | Georgia-Pacific Consumer Products Lp | Method of making a belt-creped, absorbent cellulosic sheet with a perforated belt |
WO2009141134A1 (fr) * | 2008-05-20 | 2009-11-26 | Hans Grossmann | Tamis d'égouttage pour cylindre aspirant d'une machine de fabrication de papier, pour la production de papier à filigrane |
US9453303B2 (en) | 2008-09-11 | 2016-09-27 | Albany International Corp. | Permeable belt for the manufacture of tissue, towel and nonwovens |
US8758569B2 (en) | 2008-09-11 | 2014-06-24 | Albany International Corp. | Permeable belt for nonwovens production |
US8822009B2 (en) | 2008-09-11 | 2014-09-02 | Albany International Corp. | Industrial fabric, and method of making thereof |
US8388812B2 (en) | 2008-12-12 | 2013-03-05 | Albany International Corp. | Industrial fabric including spirally wound material strips |
US8394239B2 (en) | 2008-12-12 | 2013-03-12 | Albany International Corp. | Industrial fabric including spirally wound material strips |
US8728280B2 (en) | 2008-12-12 | 2014-05-20 | Albany International Corp. | Industrial fabric including spirally wound material strips with reinforcement |
US8764943B2 (en) | 2008-12-12 | 2014-07-01 | Albany International Corp. | Industrial fabric including spirally wound material strips with reinforcement |
US8454800B2 (en) | 2009-01-28 | 2013-06-04 | Albany International Corp. | Industrial fabric for producing tissue and towel products, and method of making thereof |
EA020811B1 (ru) * | 2009-01-28 | 2015-01-30 | Джорджия-Пэсифик Консьюмер Продактс Лп | Крепированный лентой впитывающий лист с варьирующейся локальной основной массой, полученный с использованием перфорированной полимерной ленты |
US8852397B2 (en) | 2009-01-28 | 2014-10-07 | Georgia-Pacific Consumer Products Lp | Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt |
US8801903B2 (en) | 2009-01-28 | 2014-08-12 | Albany International Corp. | Industrial fabric for producing tissue and towel products, and method of making thereof |
US8652300B2 (en) | 2009-01-28 | 2014-02-18 | Georgia-Pacific Consumer Products Lp | Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt |
WO2010088359A1 (fr) * | 2009-01-28 | 2010-08-05 | Georgia-Pacific Consumer Products Lp | Feuille absorbante crêpée sur bande, de poids spécifique local variable, préparée à l'aide d'une bande polymérique perforée |
US9903070B2 (en) | 2009-01-28 | 2018-02-27 | Albany International Corp. | Industrial fabric for production of nonwovens, and method of making thereof |
FR3024166A1 (fr) * | 2014-07-24 | 2016-01-29 | Kerquest | Procede de fabrication d'un objet a matrice fibreuse et objet obtenu |
Also Published As
Publication number | Publication date |
---|---|
DE69914413D1 (de) | 2004-03-04 |
GB9815142D0 (en) | 1998-09-09 |
ATE258617T1 (de) | 2004-02-15 |
DE69914413T2 (de) | 2005-06-23 |
EP0972876A3 (fr) | 2001-02-07 |
EP0972876B1 (fr) | 2004-01-28 |
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