EP0808387B1 - Procede de fabrication de tissu non crepe seche a l'air traversant sans un tirage ouvert - Google Patents

Procede de fabrication de tissu non crepe seche a l'air traversant sans un tirage ouvert Download PDF

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Publication number
EP0808387B1
EP0808387B1 EP96905286A EP96905286A EP0808387B1 EP 0808387 B1 EP0808387 B1 EP 0808387B1 EP 96905286 A EP96905286 A EP 96905286A EP 96905286 A EP96905286 A EP 96905286A EP 0808387 B1 EP0808387 B1 EP 0808387B1
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EP
European Patent Office
Prior art keywords
fabric
dry
reel
web
per minute
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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.)
Expired - Lifetime
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EP96905286A
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German (de)
English (en)
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EP0808387A1 (fr
Inventor
James Sigward Rugowski
Michael John Rekoske
Philip Sim Lin
Ronald Frederick Gropp
Paul André Benoít Luc M. ARNOLD
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Kimberly Clark Worldwide Inc
Kimberly Clark Corp
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Kimberly Clark Worldwide Inc
Kimberly Clark Corp
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Priority claimed from US08/384,307 external-priority patent/US5591309A/en
Priority claimed from US08/384,306 external-priority patent/US5593545A/en
Application filed by Kimberly Clark Worldwide Inc, Kimberly Clark Corp filed Critical Kimberly Clark Worldwide Inc
Publication of EP0808387A1 publication Critical patent/EP0808387A1/fr
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Publication of EP0808387B1 publication Critical patent/EP0808387B1/fr
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    • 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
    • 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

Definitions

  • the tissue basesheets are generally produced by depositing an aqueous suspension of papermaking fibers onto a forming fabric, dewatering the suspension to form a web, drying the web, and winding the dried web into a roll for subsequent conversion into a particular product form.
  • tissue webs are adhered to a steam-heated Yankee dryer and thereafter dislodged from the surface of the Yankee by contact with a doctor blade (creping) prior to converting to improve the softness and stretch of the sheet.
  • a doctor blade creping
  • soft uncreped throughdried tissue sheets have been disclosed in which the softness and stretch are built into the sheet by other processing methods.
  • the final sheet traverses an "open draw" before being wound into rolls, meaning that the dried sheet is momentarily unsupported before being wound.
  • the sheet In the case of creped sheets, the sheet is dislodged from the creping cylinder and passed unsupported from the creping cylinder to the reel.
  • the sheet leaves the throughdrying fabric, or a subsequent transfer fabric, and also passes unsupported to the reel.
  • these unsupported runs or open draws are a source of sheet breaks and production delay time.
  • the tissue sheets are designed to have high machine direction strengths in order to remain intact during manufacturing. However, such high strengths are often counterproductive in terms of softness and are not desirable to the end user of the product.
  • tissues could be made more efficiently from a waste-and-delay standpoint and the machine direction strength of the final product could be reduced to levels dictated solely by product requirements rather than manufacturing requirements.
  • EP-A-0 617 164 relates to an uncreped throughdried cellulosic web having high smoothness and stretch, which is produced by transferring a newly formed web from the forming fabric to a slower moving, high fiber support transport fabric, transferring the web to a throughdrying fabric and throughdrying the web to a final dryness. Before being wound onto the reel, the web transverses an open draw.
  • WO-A-81/02704 relates to a method for making a creped throughdried tissue, and a paper machine in which the web can be transferred all the way up to the reeling means in a no-draw conduction.
  • tissue sheets having much lower machine direction strengths can be made, thereby providing a means for making tissue sheets that are softer and more "square" in terms of the machine direction and cross-machine direction tensile strengths.
  • Subject matter of the present invention is a method for making an uncreped throughdried tissue as claimed in claims 1 and 4, and a papermaking machine for continuously making an uncreped throughdried paper web as claimed in claims 9 and 10.
  • the dependent claims relate to preferred embodiments thereof.
  • the invention relates to a method for making an uncreped throughdried tissue comprising depositing an aqueous suspension of papermaking fibers onto a forming fabric to form a wet web, transferring the wet web to a throughdrying fabric, throughdrying the web to form a tissue sheet, and transferring the tissue sheet to a reel such that the sheet does not traverse an open draw while being wound onto the reel in the winding nip formed between the reel and a reel drum. Avoidance of the open draw is achieved either by an intermediate transfer to dry end transfer fabrics. This method is particularly advantageous at high machine speeds (about 2000 or about 3000 feet per minute or greater) where a relatively high MD tensile strength is otherwise necessary for the sheet to pass to the reel without periodically breaking.
  • the invention resides in the foregoing method wherein the tissue sheet is: (a) transferred from the throughdrying fabric to a first dry end transfer fabric using a vacuum roll; (b) carried between the first dry end transfer fabric and the top side of a second dry end transfer fabric having a relatively high degree of air permeability about 60 m 3 per minute per m 2 (about 200 cubic feet per minute per square foot)or greater), the underside of which partially wraps around the reel drum; (c) transferred to the top side the second dry end transfer fabric and maintained thereon by air pressure created by an air foil positioned on the underside of the second dry end transfer fabric; and (d) wound onto the reel.
  • the air permeability of the second dry end transfer fabric can be from about 60 to about 150 m 3 per minute per m 2 (about 200 to about 500 cubic feet per minute per square foot), still more specifically from about 90 to about 120 m 3 per minute per m 2 (about 300 to about 400 cubic feet per minute per square foot).
  • Air permeability which is the air flow through a fabric while maintaining a differential air pressure of 1.27 cm (0.5 inch) across the fabric, is described in ASTM test method D737.
  • the invention resides in the foregoing method wherein the tissue sheet is: (a) transferred from the throughdrying fabric to a first dry end transfer fabric using a vacuum roll; (b) carried between the first dry end transfer fabric and the top side of a second dry end transfer fabric having an air permeability of about 30 m 3 per minute per m 2 (about 100 cubic feet per minute per square foot)or less, the underside of which partially wraps around the reel drum; (c) transferred to the top side the second dry end transfer fabric; and (d) wound onto the reel.
  • the air permeability of the second dry end transfer fabric can be from 0 to about 30 m 3 per minute per m 2 (0 to about 100 cubic feet per minute per square foot), more specifically from about 7.5 to about 30 m 3 per minute per m 2 (about 25 to about 100 cubic feet per minute) per square foot, still more specifically from about 15 to about 30 m 3 per minute per m 2 (about 50 to about 100 cubic feet) per minute per square foot.
  • the invention relates to a papermaking machine for continuously making uncreped throughdried paper webs comprising:
  • the invention resides in the foregoing papermaking machine wherein the means for transferring the web from the throughdrying fabric to the reel comprises: (a) a continuous first dry-end transfer fabric positioned adjacent to the throughdryer fabric to enable transfer of the dried web to the first dry-end transfer fabric; (b) a continuous loop of a second dry-end transfer fabric positioned adjacent to the first dry-end transfer fabric such that the dried web is sandwiched between the first and second dry-end transfer fabrics, wherein said second dry-end transfer fabric loops around the reel drum and has an air permeability of about 30 m 3 per minute per m 2 (about 100 cubic feet per minute per square foot) or less.
  • FIG. 1 shown is a schematic flow diagram of a representative throughdrying process for making uncreped throughdried tissues. Shown is the headbox 1 which deposits an aqueous suspension of papermaking fibers onto inner forming fabric 3 as it traverses the forming roll 4. Outer forming fabric 5 serves to contain the web while it passes over the forming roll and sheds some of the water. The wet web 6 is then transferred from the inner forming fabric to a wet end transfer fabric 8 with the aid of a vacuum transfer shoe 9. This transfer is preferably carried out with the transfer fabric travelling at a slower speed than the forming fabric (rush transfer) to impart stretch into the final tissue sheet. The wet web is then transferred to the throughdrying fabric 11 with the assistance of a vacuum transfer roll 12.
  • the throughdrying fabric carries the web over the throughdryer 13, blows hot air through the web to dry it while preserving bulk.
  • the dried tissue sheet 15 is then transferred to a first dry end transfer fabric 16 with the aid of vacuum transfer roll 17.
  • the tissue sheet shortly after transfer is sandwiched between the first dry end transfer fabric and a second dry end transfer fabric 18 to positively control the sheet path.
  • the tissue sheet leaves the transfer fabrics and traverses an open draw designated by reference number 20, at which point the sheet is unsupported.
  • the sheet then passes through the winding nip between the reel drum 22 and the reel 23 and is wound into a roll of tissue 25 for subsequent converting, such as slitting, cutting, folding and packaging.
  • FIG 2 is a schematic flow diagram of process in accordance with this invention, in which the open draw leading to the reel is eliminated.
  • the front end of the process is the same as shown in Figure 1.
  • a first dry end transfer fabric 16 With the aid of a vacuum transfer roll 17.
  • Suitable fabrics for use as the first dry end transfer fabric 16 include, without limitation, a wide variety of fabrics such as Asten 934, Asten 939, Albany 59M, Albany Duotex DD207, Lindsay 543 and the like.
  • the tissue sheet is then compressed between the first dry end transfer fabric and a second dry end transfer fabric 18, which has a greater air permeability than that of the first dry end transfer fabric and which wraps around the reel drum 22.
  • Suitable second dry end transfer fabrics include, without limitation, Asten 960 (air permeability of about 90-120 (about 300-400)), Appleton Mills style Q53F (air permeability of about 120 (about 400)), Appleton Mills style Q53KY (air permeability of about 60 (about 200)), Albany Duotex A81 and Appleton Mills style HC200 (air permeability of about 60 (about 200)). Because of the air flow through the lower fabric caused by roll 31, the sheet transfers to the second dry end transfer fabric 18. It is retained on the top surface of the second dry end transfer fabric by air pressure generated by the presence of an air foil 30 on the underside of the fabric. The tissue sheet is then carried to the winding nip formed between the reel drum and the reel 23 and wound into a roll 25.
  • Figure 3 respresents another embodiment of the method of this invention, similar to that illustrated in Figure 2 but in which the permeability of the second transfer fabric is much lower than the corresponding fabric used for the method of Figure 2.
  • Suitable low air permeability fabrics for this embodiment include, without limitation, Asten 960 dryer fabric (air permeability of about 15-30 (about 50-100)), COFPA Mononap NP 50 dryer felt (air permeability of about 15 (about 50)) and Appleton Mills dryer felt style H53FH (air permeability of about 22.5 (about 75)).
  • Figure 4 is a plot showing the geometric mean tensile strength per ply versus MD tensile strength per ply (expressed as grams-force per 3 inches of sample width) for a variety of commercial facial tissues, bathroom tissues and towels, as well as several examples produced by this invention. Numbers “1", “2” and “3” denote commercially available one, two and three-ply facial, bath and towel products. Letters "A-E” refer to tissue products made in Example 1. Data points A and B specifically demonstrate the ability of this invention to consistently produce and reel up tissue webs of low strength. While other low-strength tissues exist, it is commonly known within the industry that their production typically involves reduced machine speed and efficiency. This invention allows the production of such tissues at high speed 914.4 m per minute (3000 feet per minute) or greater) with little, or no, less in efficiency due to dry-end sheet breaks.
  • the eucalyptus fibers Prior to formation, the eucalyptus fibers were pulped for 15 minutes at 10 percent consistency and dewatered to 30-40 percent consistency. The pulp was then fed to a tiaule shaft disperser operated at 90°C (194°F) with a power input of 3.2 horsepower-days per ton (2.6 kilowatt-days per tonne). Subsequent to dispersing, a softening agent (Berocell 596) was added to the pulp in the amount of 15 pounds of Berocell per tonne of dry fiber (0.75 weight percent).
  • a softening agent (Berocell 596) was added to the pulp in the amount of 15 pounds of Berocell per tonne of dry fiber (0.75 weight percent).
  • the softwood fibers were pulped for 30 minutes at 7 percent consistency and diluted to 3.5 percent consistency after pulping, while the dispersed, debonded eucalyptus fibers were diluted to 3.5 percent consistency.
  • the overall layered sheet weight was split 30%/40%/30% among the dispersed eucalyptus/refined softwood/dispersed eucalyptus layers.
  • the center layer was refined to levels required to achieve target strength values, while the outer layers provided the surface softness and bulk. Parez 63INC was added to the center layer at 5.0 kilograms (11 pounds) per tonne of pulp based on the center layer.
  • a three-layer headbox was used to form the wet web with the refined northern softwood kraft stock in the center layer of the headbox to produce a single center layer for the three-layered product described.
  • Turbulence-generating inserts-recessed about 75 millimeters (3 inches) from the slice and layer dividers extending about 150 millimeters (6 inches) beyond the slice were employed.
  • the net slice opening was about 31 millimeters (1.22 inch), with water flow in the center layer approximately two times that in each outer layer.
  • the consistency of the stock fed to the headbox was about 0.1 weight percent.
  • the resulting three-layered sheet was formed on a twin-wire, suction form roll, former with forming fabrics (5 and 3 in Figure 1) being Asten 866 and Asten 856 fabrics, respectively.
  • the speed of the forming fabrics was 15.2 meters per second.
  • the newly-formed web was then dewatered to a consistency of about 20-27 percent using vacuum suction from below the forming fabric before being transferred to the transfer fabric, which was travelling at 11.7 meters per second (30% rush transfer).
  • the transfer fabric was an Albany Duotex R-12. A vacuum shoe pulling about 150-380 millimeters (6-15 inches) of mercury vacuum was used to transfer the web to the transfer fabric.
  • the web was then transferred to a throughdrying fabric (Lindsay Wire T-216-3).
  • the throughdrying fabric was travelling at a speed of about 11.7 meters per second about 2200 feet per minute.
  • the web was carried over a Honeycomb throughdryer operating at a temperature of about 175°C. (350°F) and dried to final dryness of about 98 percent consistency.
  • the web was then taken to the reel with no opportunity for open draws according to the high permeability fabric scheme illustrated in Figure 2.
  • the first dry end transfer fabric was an Asten 960 while the second dry end transfer fabric was an Albany Duotex A81.
  • the second dry end transfer fabric had an air permeability of 125 m 3 per minute per m 2 (410 cubic feet per minute per square foot) at 1.27 cm (0.5 inch) of water pressure differential.
  • a foil was required under the second dry end transfer fabric at the point of separation of the first and second dry end transfer fabrics. This foil created a low pressure area under the second dry end transfer fabric and caused the sheet to follow this fabric.

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Abstract

L'invention concerne un procédé de fabrication de tissus non crêpés séchés à l'air traversant, dans lequel la feuille de tissu séchée (15) est entièrement supportée par une toile (18) jusqu'à la bobine (23). Ce procédé supprime le tirage ouvert entre le sécheur à air traversant (13) et la bobine (23) et élimine ainsi les interruptions de feuille habituellement associées à de tels tirages ouverts. En outre, il permet de réduire la puissance du sens marche de la feuille car celui-ci n'a plus besoin de puissance supplémentaire pour franchir le tirage ouvert habituellement présent dans les processus actuels. La réduction de la puissance du sens marche permet à son tour de produire des feuilles plus carrées et moins rigides, ce qui améliore les propriétés tactiles du produit.

Claims (10)

  1. Procédé de fabrication d'un papier absorbant mince séché par soufflage transversal et non crêpé, comprenant le dépôt d'une suspension aqueuse de fibres papetières sur une toile de formation (3) pour former une nappe humide (6), le transfert de la nappe humide (6) sur une toile de séchage par soufflage transversal (11), le séchage par soufflage transversal de la nappe (6) pour former une feuille de papier absorbant mince, et le transfert de la feuille de papier absorbant mince sur un enrouleur (23) de telle sorte que la feuille ne traverse pas une zone non supportée tandis qu'elle est enroulée sur l'enrouleur (23) dans l'espace d'enroulage formé entre l'enrouleur (23) et un tambour d'enrouleur (22),
       la feuille de papier absorbant mince étant :
    (a) transférée depuis la toile de séchage par soufflage transversal (11) jusque sur une première toile de transfert côté extrémité sèche (16) en utilisant un rouleau à vide (17) ;
    (b) transportée entre la première toile de transfert côté extrémité sèche (16) et la face supérieure d'une seconde toile de transfert côté extrémité sèche (18), dont la face inférieure enveloppe partiellement le tambour d'enrouleur (22) ;
    (c) transférée vers la face supérieure de la seconde toile de transfert côté extrémité sèche (18) et maintenue sur celle-ci par la pression de l'air créée par une lame d'air (30) positionnée sur la face inférieure de la seconde toile de transfert côté extrémité sèche (18) ; et
    (d) enroulée sur l'enrouleur (23), et
       la perméabilité à l'air de la seconde toile de transfert côté extrémité sèche (18) étant d'environ 60 m3/min./m2 (environ 200 pieds3/min./pied2) ou davantage.
  2. Procédé selon la revendication 1, dans lequel la perméabilité à l'air de la seconde toile de transfert côté extrémité sèche (18) est comprise entre environ 60 m3/min./m2 et environ 150 m3/min./m2 (entre environ 200 et environ 500 pieds3/min./pied2).
  3. Procédé selon la revendication 1, dans lequel la perméabilité à l'air de la seconde toile de transfert côté extrémité sèche (18) est comprise entre environ 90 m3/min./m2 et environ 120 m3/min./m2 (entre environ 300 et environ 400 pieds3/min./pied2).
  4. Procédé de fabrication d'un papier absorbant mince séché par soufflage transversal et non crêpé, comprenant le dépôt d'une suspension aqueuse de fibres papetières sur une toile de formation (3) pour former une nappe humide (6), le transfert de la nappe humide (6) sur une toile de séchage par soufflage transversal (11), le séchage par soufflage transversal de la nappe (6) pour former une feuille de papier absorbant mince, et le transfert de la feuille de papier absorbant mince sur un enrouleur (23) de telle sorte que la feuille ne traverse pas une zone non supportée tandis qu'elle est enroulée sur l'enrouleur (23) dans l'espace d'enroulage formé entre l'enrouleur (23) et un tambour d'enrouleur (22),
       la feuille de papier absorbant mince étant :
    (a) transférée depuis la toile de séchage par soufflage transversal (11) jusque sur une première toile de transfert côté extrémité sèche (16) en utilisant un rouleau à vide (17) ;
    (b) transportée entre la première toile de transfert côté extrémité sèche (16) et la face supérieure d'une seconde toile de transfert côté extrémité sèche (18), dont la face inférieure enveloppe partiellement le tambour d'enrouleur (22) ;
    (c) transférée vers la face supérieure de la seconde toile de transfert côté extrémité sèche (18) ; et
    (d) enroulée sur l'enrouleur (23), et
       la perméabilité à l'air de la seconde toile de transfert côté extrémité sèche (18) étant d'environ 30 m3/min./m2 (environ 100 pieds3/min./pied2) ou moins.
  5. Procédé selon la revendication 4, dans lequel la perméabilité à l'air de la seconde toile de transfert côté extrémité sèche (18) est comprise entre environ 7,5 m3/min./m2 et environ 30 m3/min./m2 (entre environ 25 et environ 100 pieds3/min./pied2).
  6. Procédé selon la revendication 4, dans lequel la perméabilité à l'air de la seconde toile de transfert côté extrémité sèche (18) est comprise entre environ 15 m3/min./m2 et environ 30 m3/min./m2 (entre environ 50 et environ 100 pieds3/min./pied2).
  7. Procédé selon la revendication 1, dans lequel la vitesse de la feuille de papier absorbant mince est d'environ 600 m/min. (environ 2 000 pieds/min.) ou davantage.
  8. Procédé selon la revendication 1, dans lequel la vitesse de la feuille de papier absorbant mince est d'environ 900 m/min. (environ 3 000 pieds/min.) ou davantage.
  9. Machine à papier pour la fabrication continue d'une nappe de papier séchée par soufflage transversal et non crêpée, comprenant :
    (a) une caisse d'arrivée (1) pour déposer une suspension aqueuse de fibres papetières sur un treillis de formation ;
    (b) une toile de formation (3) continue pour recevoir la suspension aqueuse de fibres papetières et former une nappe humide (6) ;
    (c) une toile de transfert (8) continue, positionnée adjacente à la toile de formation pour permettre à la nappe humide (6) de passer de la toile de formation (3) à la toile de transfert (8) ;
    (d) un moyen (9) pour effectuer le transfert de la nappe humide (6) de la toile de formation (3) à la toile de transfert (8) ;
    (e) un cylindre de séchage par soufflage transversal (13) rotatif pour sécher la nappe humide (6) ;
    (f) une toile de séchage par soufflage transversal (11) continue qui enveloppe au moins partiellement le séchoir par soufflage transversal (13) et est positionnée adjacente à la toile de transfert (8) pour permettre le transfert de la nappe humide (6) depuis la toile de transfert (8) jusque sur la toile de séchage par soufflage transversal (11) ;
    (g) un moyen (12) pour procéder au transfert de la nappe humide (6) depuis la toile de transfert (8) jusque sur la toile de séchage par soufflage transversal (11) ;
    (h) un enrouleur (23) rotatif pour enrouler la nappe séchée ;
    (i) un tambour d'enrouleur (22) adjacent à l'enrouleur pour aider à l'enroulage de la nappe séchée ; et
    (j) un moyen pour transférer la nappe séchée depuis la toile de séchage par soufflage transversal (11) jusque sur l'enrouleur (23) sans zone non supportée,
       le moyen de transfert de la nappe depuis la toile de séchage par soufflage transversal (11) jusque sur l'enrouleur (23) comprenant :
    (a) une première toile de transfert côté extrémité sèche (16) continue positionnée adjacente à la toile de séchage par soufflage transversal (11) pour permettre le transfert de la nappe séchée vers la première toile de transfert côté extrémité sèche (16) ;
       caractérisé en ce qu'il est prévu :
    (b) une boucle continue d'une seconde toile de transfert côté extrémité sèche (18) positionnée adjacente à la première toile de transfert côté extrémité sèche (16) de telle sorte que la nappe séchée est prise en sandwich entre les première et seconde toiles de transfert côté extrémité sèche (16,18), ladite seconde toile de transfert côté extrémité sèche (18) faisant une boucle autour du tambour d'enrouleur (22) et ayant une perméabilité à l'air d'environ 60 m3/min./m2 (environ 200 pieds3/min./pied2) ou plus ; et
    (c) une lame d'air (30) positionnée entre la boucle de la seconde toile de transfert côté extrémité sèche (18) et adjacente à la seconde toile de transfert côté extrémité sèche (18), lame qui crée une pression d'air pour maintenir la nappe séchée en contact avec la seconde toile de transfert côté extrémité sèche (18).
  10. Machine à papier pour la fabrication continue d'une nappe de papier séchée par soufflage transversal et non crêpée, comprenant :
    (a) une caisse d'arrivée (1) pour déposer une suspension aqueuse de fibres papetières sur un treillis de formation ;
    (b) une toile de formation (3) continue pour recevoir la suspension aqueuse de fibres papetières et former une nappe humide (6) ;
    (c) une toile de transfert (8) continue, positionnée adjacente à la toile de formation pour permettre à la nappe humide (6) de passer de la toile de formation (3) à la toile de transfert (8) ;
    (d) un moyen (9) pour effectuer le transfert de la nappe humide (6) de la toile de formation (3) à la toile de transfert (8) ;
    (e) un cylindre de séchage par soufflage transversal (13) rotatif pour sécher la nappe humide (6) ;
    (f) une toile de séchage par soufflage transversal (11) continue qui enveloppe au moins partiellement le séchoir par soufflage transversal (12) et est positionné adjacent à la toile de transfert (8) pour permettre le transfert de la nappe humide (6) depuis la toile de transfert (8) jusque sur la toile de séchage par soufflage transversal (11) ;
    (g) un moyen (12) pour procéder au transfert de la nappe humide (6) depuis la toile de transfert (8) jusque sur la toile de séchage par soufflage transversal (11) ;
    (h) un enrouleur (23) rotatif pour enrouler la nappe séchée ;
    (i) un tambour d'enrouleur (22) adjacent à l'enrouleur pour aider à l'enroulag de la nappe séchée ; et
    (j) un moyen pour transférer la nappe séchée depuis la toile de séchage par soufflage transversal (11) jusque sur l'enrouleur (23) sans zone non supportée,
       le moyen de transfert de la nappe depuis la toile de séchage par soufflage transversal (11) jusque sur l'enrouleur (23) comprenant :
    (a) une première toile de transfert côté extrémité sèche (16) continue positionnée adjacente à la toile de séchage par soufflage transversal (11) pour permettre le transfert de la nappe séchée vers la première toile de transfert côté extrémité sèche (16) ;
       caractérisé en ce qu'il est prévu :
    (b) une boucle continue d'une seconde toile de transfert côté extrémité sèche (18) positionnée adjacente à la première toile de transfert côté extrémité sèche (16) de telle sorte que la nappe séchée est prise en sandwich entre les première et seconde toiles de transfert côté extrémité sèche (16,18), ladite seconde toile de transfert côté extrémité sèche (18) faisant une boucle autour du tambour d'enrouleur (22) et ayant une perméabilité à l'air d'environ 30 m3/min./m2 (environ 100 pieds3/min./pied2) ou moins.
EP96905286A 1995-02-06 1996-01-26 Procede de fabrication de tissu non crepe seche a l'air traversant sans un tirage ouvert Expired - Lifetime EP0808387B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US384307 1995-02-06
US08/384,307 US5591309A (en) 1995-02-06 1995-02-06 Papermaking machine for making uncreped throughdried tissue sheets
US384306 1995-02-06
US08/384,306 US5593545A (en) 1995-02-06 1995-02-06 Method for making uncreped throughdried tissue products without an open draw
PCT/US1996/001244 WO1996024718A1 (fr) 1995-02-06 1996-01-26 Procede de fabrication de tissu non crepe seche a l'air traversant sans un tirage ouvert

Publications (2)

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EP0808387A1 EP0808387A1 (fr) 1997-11-26
EP0808387B1 true EP0808387B1 (fr) 2003-04-16

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EP96905286A Expired - Lifetime EP0808387B1 (fr) 1995-02-06 1996-01-26 Procede de fabrication de tissu non crepe seche a l'air traversant sans un tirage ouvert

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EP (1) EP0808387B1 (fr)
JP (1) JPH10513235A (fr)
KR (1) KR100407211B1 (fr)
AU (1) AU692070B2 (fr)
BR (1) BR9607126A (fr)
CA (1) CA2144801C (fr)
DE (1) DE69627478T2 (fr)
WO (1) WO1996024718A1 (fr)

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US6183601B1 (en) 1999-02-03 2001-02-06 Kimberly-Clark Worldwide, Inc. Method of calendering a sheet material web carried by a fabric
US7056572B1 (en) * 2000-10-05 2006-06-06 Kimberly-Clark Worldwide, Inc. Thin, soft bath tissue having a bulky feel
US6740200B2 (en) * 2001-12-19 2004-05-25 Kimberly-Clark Worldwide, Inc. Methods and system for manufacturing and finishing web products at high speed without reeling and unwinding
US6743334B2 (en) 2002-06-11 2004-06-01 Metso Paper Karlstad Aktiebolag (Ab) Method and apparatus for making a tissue paper with improved tactile qualities while improving the reel-up process for a high bulk web
US7300543B2 (en) * 2003-12-23 2007-11-27 Kimberly-Clark Worldwide, Inc. Tissue products having high durability and a deep discontinuous pocket structure
US7294229B2 (en) * 2003-12-23 2007-11-13 Kimberly-Clark Worldwide, Inc. Tissue products having substantially equal machine direction and cross-machine direction mechanical properties

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GB753325A (en) * 1953-08-11 1956-07-25 Bowaters Dev & Res Ltd Papermaking machines
GB1389992A (en) * 1973-04-19 1975-04-09 Valmet Oy Machine for making tissue paper
US4359827B1 (en) * 1979-11-05 1994-03-29 Keith V Thomas High speed paper drying
FI60583C (fi) * 1980-03-18 1982-02-10 Valmet Oy Foerfarande och anordning foer framstaellning av kreppad pappersbana
US4356059A (en) * 1981-11-16 1982-10-26 Crown Zellerbach Corporation High bulk papermaking system
US4440597A (en) * 1982-03-15 1984-04-03 The Procter & Gamble Company Wet-microcontracted paper and concomitant process
US5048589A (en) * 1988-05-18 1991-09-17 Kimberly-Clark Corporation Non-creped hand or wiper towel
CA2098326A1 (fr) * 1993-03-24 1994-09-25 Steven A. Engel Procede de fabrication de feuilles de papier doux, non crepe et completement seche

Also Published As

Publication number Publication date
CA2144801C (fr) 2008-01-15
BR9607126A (pt) 1997-11-04
WO1996024718A1 (fr) 1996-08-15
EP0808387A1 (fr) 1997-11-26
CA2144801A1 (fr) 1996-08-07
KR100407211B1 (ko) 2004-01-24
DE69627478T2 (de) 2003-10-30
AU4909296A (en) 1996-08-27
KR19980701951A (ko) 1998-06-25
DE69627478D1 (de) 2003-05-22
JPH10513235A (ja) 1998-12-15
AU692070B2 (en) 1998-05-28

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