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WO1993014267A1 - Papier absorbant renforce - Google Patents

Papier absorbant renforce Download PDF

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Publication number
WO1993014267A1
WO1993014267A1 PCT/US1993/000205 US9300205W WO9314267A1 WO 1993014267 A1 WO1993014267 A1 WO 1993014267A1 US 9300205 W US9300205 W US 9300205W WO 9314267 A1 WO9314267 A1 WO 9314267A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibers
layer
wood pulp
reinforced
web
Prior art date
Application number
PCT/US1993/000205
Other languages
English (en)
Inventor
James H. Manning
Original Assignee
James River Corporation Of Virginia
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 James River Corporation Of Virginia filed Critical James River Corporation Of Virginia
Publication of WO1993014267A1 publication Critical patent/WO1993014267A1/fr

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
    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers
    • 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
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/10—Composite fibres
    • 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

Definitions

  • the present invention relates to reinforced absorbent paper, especially to reinforced tissue or toweling.
  • Reinforced tissue is typically reinforced off-machine.
  • a reinforced tissue called Kaycel for example, manufactured by Kimberly-Clark Corporation, uses a scrim of fine denier continuous filaments coated with adhesive, which scrim is layered between sheets of tissue and melted.
  • Scrim-reinforced tissue suffers from several disadvantages, including the cost of materials of the scrim itself, the cost of manufacturing the scrim, and the cost of the separate off-machine layering.
  • scrim-reinforced product suffers from poor abrasion resistance manifested in a phenomenon called "windowing".
  • windowing When used as a wipe, small squares of tissue are abraded off of the wipes and remain deposited on, e.g., a patient's skin. If one then examines the wipe, one observes what appear to be small window-like openings in the wipe. This windowing is apparently due to the manner of reinforcing the paper.
  • the scrim reinforces the tissue only at those places where the continuous filaments of the scrim contact the tissue. Hence, a need exists for a reinforced absorbent paper that is less expensive to manufacture and that exhibits greater abrasion resistance.
  • the present invention provides a reinforced paper that is reinforced on-machine, that exhibits good abrasion resistance, and that is economical to manufacture. Additional objects and advantages of the present invention will be apparent from the description, may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the appended claims, and may be learned by practice of the invention.
  • the present invention relates to a reinforced absorbent paper comprising outer surfaces composed predominately of absorbent wood pulp fibers and an inner structure containing sufficient fused thermoplastic fibers to provide a reinforcement structure.
  • a prime economic advantage of the present invention is that the reinforced absorbent paper components can be made entirely on a paper machine - that is, the reinforcement structure can be made by wetlaid processing.
  • a prime product performance advantage of the present invention is that the reinforcement structure tends to be micro-uniform and inobtrusive. By "micro-uniform”, I mean uniform at the level of product usage, as opposed to a scrim-reinforced absorbent paper, which shows areas of high and low (or non-existent) strength when used for instance in a wiping application.
  • One method of making multiple-layer reinforced paper comprises the steps of forming first and second slurries of fibers including wood pulp fibers; forming a third slurry of fibers including long synthetic thermal bonding fibers; wetlaying the first, second, and third slurries to form a layered web having first and second outer layers of fibers including wood pulp fibers and a central layer of fibers including long synthetic fibers contiguous to the first and second layers; and bonding the synthetic fibers of the central layer to each other and to the wood pulp fibers of the first and second outer layer.
  • the present invention comprises the steps of wetlaying first and second two-layer webs, each two-layer web including one bonding fiber layer having thermal bonding fibers; drying the first and second two-layer webs; creping the first and second two-layer webs; positioning the first two-layer web and the second two-layer web so that their respective bonding fiber layers are contiguous to form a two-ply web; and heating the two-ply web to adhere the first and second two-layer webs to each other and to form a bonded reinforcing layer.
  • Fig. 1 is a schematic cross-sectional end view of a three-channel headbox.
  • Fig. 2 is a schematic cross-section of a multiple-channel headbox.
  • Fig. 3 is a diagrammatic illustration of a three-layer stratified web of reinforced paper according to one embodiment of the invention.
  • Fig. 4 is a perspective view of a pair of two-layer webs.
  • Fig. 5 is a perspective view showing the pair of webs of Fig. 4 positioned atop each other.
  • Fig. 6 is a perspective view of a three-layer stratified web of reinforced paper produced from the web of Fig. 5 according to still another embodiment of the invention.
  • All of the alternative methods according to the present invention include the step of forming a slurry of fibers including long synthetic thermal bonding fibers, preferably in accordance with the method taught in U.S. Patents Nos. 4,925,528 and 4,822,452 (incorporated herein by reference).
  • the furnish may optionally also include an anionic polymer dispersion aid, such as Calgon's Hydraid,
  • the slurry is then wetlaid to form a web comprising said long synthetic fibers.
  • the synthetic fibers are bonded to each other and to the wood pulp fibers.
  • Weighting processing as contemplated herein may be conventional water-based papermaking; it may also be foam-forming, that is, a variant of water-based papermaking in which a substantial amount of the water carrier is replaced by air bubbles engendered by the presence of surfactant.
  • the bonding step may include using a Yankee dryer, passing the web through dryer cans, hot calendering, or through-air drying, all as is known.
  • the bonding step may also include embossing the web before collecting the web on a take-up reel, again as known.
  • the drying step include drying each of two two-layer webs 70 (Fig. 5) on a Yankee dryer so that thermal bonding fiber layer 74 is positioned remote from the Yankee dryer surface. After the two-layer webs 70 are combined into two-ply web 76 (Fig.
  • web 76 may be heated by having the last section of drier cans hot enough or by passing web 76 through a hot calender, a hot embosser, or a through-air dryer in order to bond the thermal bonding fibers.
  • a three-layer web such as web 50 (Fig. 3) also may be heated by those techniques to bond the thermal bonding fibers to each other and to the wood pulp fibers.
  • a three-channel headbox such as that illustrated in Fig. 1, may be used.
  • slurry supply pipes 16, 18, and 20 receive slurries from cross- machine distributors 14 and supply said slurries to mixing chambers 22 and tube banks 24 of headbox 10.
  • slurry from a single source is supplied to pipes 16 and 20, which will result in identical outer layers in the web when it is wet-laid.
  • a different slurry is supplied by pipe 18 to form an inner layer in the web.
  • the slurries from pipes 16, 18, and 20 are kept separate by layering plates 32 and the slurries from the three pipes 16, 18, and 20 to exit at outlet (or "slice") 26.
  • the separation distance between layering plates 32 at slice 26 may be adjusted by slice jack 28 and slice knuckle 30.
  • the composite slurry that issues from the headbox is deposited on e.g., a Fourdrinier wire forming section, a twin-wire machine, or some other conventional papermaking machine.
  • the headbox is a Beloit Concept II headbox such as StrataFlo headbox commercially available from Beloit Corporation.
  • An example of such a headbox is illustrated in Fig. 2, showing tube bank 24 for dividing the total flow of the slurry into multiple thin converging layers, trailing elements 34, and slice 26.
  • Another preferred headbox is the Beloit Contra-Flo.
  • Fig. 3 schematically illustrates a three-layer stratified web 50 having outer wood pulp fiber layers 52 and 56, which are preferably substantially identical to each other, and a central layer 54 of long synthetic fibers positioned between outer layers 52 and 56.
  • outer wood pulp fiber layers 52 and 56 which are preferably substantially identical to each other, and a central layer 54 of long synthetic fibers positioned between outer layers 52 and 56.
  • outer layers 52 and 56 are made from a slurry preferably containing predominantly wood pulp fibers. Substantially any known wood pulp fibers may be used. Central layer 54 is made from a slurry preferably containing predominately long synthetic thermal bonding fibers. Although any synthetic thermal bonding fibers can be used, bicomponent fibers such as sheath/core or side-by-side biocomponent fibers wherein there is a lower melting component and a higher melting component with a significant proportion of the surface of the fiber being the lower melting component, are preferred.
  • Sheath/core bicomponent fibers are generally most preferred because they exhibit a better bonding efficiency than side-by-side bicomponent fibers, and because in some cases side-by-side bicomponent fibers may exhibit an excessive tendency to curl, crimp, or shrink during the heat bonding step. Such three-dimensionalization of the thermal bonding fibers is to be avoided, because as the fibers lose their straightness, they likewise lose ability to reinforce the paper product into which they are incorporated. For this reason, concentric sheath/core bicomponent fibers are much preferred to eccentric ones.
  • Sheath/core bicomponent fibers especially useful according to the present invention are preferably selected from the group consisting of polyethylene/polyester, cop olye s te r/p o ly e s ter , p o lypropy l e n e /p o ly e s te r , and polyethylene/polypropylene. It is preferred that the synthetic fibers be selected from the Celbond family of bicomponent fibers such as K56, T105, or T106 commercially available from Hoechst Celanese.
  • the K56 and T106 fibers are bicomponent fibers having a sheath of polyethylene and a core of polyester and having dimensions of about 10 mm by about 2 denier (that is, about three to four times longer than the wood pulp fibers and about one-half the diameter of the wood pulp fibers).
  • the T105 fiber a biocomponent fiber that is chemically reactive with cellulose, is believed to have a sheath including polyolefin and a core of polyester and has dimensions of about 1/2 inch by about 2 denier.
  • the term "long" synthetic fibers means fibers having a length-to-diameter ratio of at least about 500 to 1. In one preferred embodiment, the length-to-diameter ration is at least 800; a length-to-diameter ratio ranging from 1600 to 1 represents the approximate upper limit of typical manufacturing equipment for end use such as wipes. It is preferred that the long synthetic fibers be randomly laid down, nonwoven, cut fibers. The long synthetic fibers should have a length of from about 6 mm to about 30 mm, and should have a size in the range of from about 0.5 denier to about 15 denier.
  • the percentage of the synthetic fibers in the web could range from about 5% to about 60% by weight of the overall absorbent paper product.
  • the synthetic thermal bonding fibers should compose about %5 to about 20% of all the fibers in the web.
  • that layer could include wood pulp fibers or hydrophilic wood pulp, or synthetic fibers such as non-bonding fibers, synthetic pulps, or bonding fibers such as homopolymers or biconstituent fibers.
  • the percentage of wood pulp fibers in the overall product could range from about 40% to about 95% by weight.
  • those layers could include synthetic fibers.
  • the wood pulp fibers should compose at least 50% by weight of all the fibers in the web for end use products such as tissues or wipes. In other words, although it appears that the present invention would yield a reinforced web even if the wood pulp fibers were less than 50% by weight of all the fibers in the web, as the percentage of wood pulp fibers decreases from 50% the resulting web would lose aesthetic properties associated with paper.
  • the method includes making a multiple layer reinforced paper by wet-laying first and second two-layer webs (each such two-layer web including one layer having thermal bonding fibers), drying and then creping the two-layer webs to get loft and softness, and positioning the first two-layer web atop the second two-layer web so that their respective bonding fiber layers are contiguous to form a two-ply web.
  • the two-ply web is heated to adhere the first and second two-layer webs to each other and to thus form a thermally bonded reinforcing layer.
  • each two-layer web 70 is wetlaid and includes a wood pulp fiber layer 72 and a thermal or chemical bonding fiber layer 74.
  • first and second two-layer webs 70 are dried and creped, they are positioned as illustrated in Fig. 5 so that their respective bonding fiber layers 74 are contiguous to form a two-ply web 76.
  • Two-ply web 76 is heated to adhere or bond first and second webs 70 to each other; the respective bonding fiber layers 74 thus form a thermally bonded reinforcing layer 78 as illustrated in Fig. 6, thereby producing a three-layer stratified reinforced paper 80.
  • the percentage of long synthetic fibers in the web could range, again, from about 5% to about 60% by weight; the preferable range is about 5-20% .
  • the desired percentage of such wood pulp and synthetic thermal bonding fibers in the web may vary depending on the end use of the product. For example, for consumer use products in a kitchen (where softness is more desirable than strength), it is preferable to use about 5-10 % synthetic fibers. For commercial use products in a mechanic's shop (where strength is more desirable than softness), it is preferable to use about 20% synthetic fibers.
  • the finished product have a basis weight in the range of about 5 pounds per ream to about 30 pounds per ream (for ream of 3000 square feet). Paper heavier than 30 pounds per ream could be advantageously produced by the method of this invention, although such a heavier paper may not be regarded as tissue. It will be appreciated that the invention is not limited to a reinforced paper having only three layers. A multi-layer reinforced paper having four or even more layers may be produced by the method of the present invention.
  • a stratified web was produced on a pilot scale twin-wire former using a Beloit Contra-Flo three-layer headbox to provide a reinforced tissue.
  • the furnish for the outer layers consisted of 1500 pounds of 50% northern hardwood kraft and 50% northern softwood kraft.
  • the center layer of the three-ply web was 100% DuPont dacron type 271P, a 4.0 denier x 3/4 inch thermal bonding biocomponent fiber, possessing a copolymer PET sheath and a PET core.
  • One hundred fifty pounds of the synthetic fiber was treated in a pulper containing 2000 gallons of 90°F water with 6.7 pounds of a nonionic associative thickener (Acrysol QR- 708, 34% active, Rohm & Haas, Philadelphia, Pa.
  • Table II identifies the TAPPI standard test methods used. The test methods are described in TAPPI standard test methods.
  • Breaking length and geometric mean tensile strength are calculated values.
  • breaking length is the greatest length of paper that would support its own weight. Breaking length (in meters) is calculated from basis weight (in pounds per 3000 square feet) and from the geometric mean tensile strength (in grams per inch), which in turn is calculated from the value for MD & CD strip tensile strength (in grams per inch) as follows:
  • geometric mean tensile strength (calculated from the dry tensile strength values in Table I) is 309 g/in, and the dry breaking length is calculated to be about 312m.
  • geometric mean tensile strength calculated from the wet tensile strength values in Table I is 64 g/in, and the wet breaking length is calculated to be about 65m.
  • the geometric mean tensile strength (calculated from dry tensile strength values in Table I) is 370 g/in, and the dry breaking length is calculated to be about 361m.
  • geometric tensile strength calculated from the wet tensile strength values in Table I is 119 g/in, and the wet breaking length is calculated to be about 116m.

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  • Paper (AREA)

Abstract

L'invention concerne du papier de soie ou serviette en papier absorbant renforcé, multicouche, déposé mouillé comprenant des fibres cellulosiques et synthétiques, longues et droites. Un procédé de fabrication de papier renforcé consiste à former des première et seconde suspensions de fibres cellulosiques, et une troisième suspension de fibres à liaison thermique synthétiques, longues, par dépôt mouillé des trois suspensions afin de former une bande déposée de fibres cellulosiques, et une couche centrale de fibres synthétiques contiguë aux couches externes, et de lier thermiquement les fibres synthétiques entre elles et aux fibres cellulosiques. Selon un autre mode de réalisation de l'invention, le procédé consiste à fabriquer un papier renforcé multicouche par dépôt mouillé des première et seconde bandes double-couche (chaque bande double-couche comportant une couche pourvue de fibres à liaison thermique); à sécher puis à créper les bandes double-couche pour obtenir volume et douceur, et à positionner la première bande double-couche au-dessus de la seconde bande double couche de façon à ce que les couches de fibres de liaison soient contiguës afin de former une bande à double épaisseur. La bande à double épaisseur est chauffée afin de coller les première et seconde bandes double-couche l'une à l'autre et pour former ainsi une couche renforcée à liaison thermique.
PCT/US1993/000205 1992-01-21 1993-01-19 Papier absorbant renforce WO1993014267A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82310392A 1992-01-21 1992-01-21
US823,103 1992-01-21

Publications (1)

Publication Number Publication Date
WO1993014267A1 true WO1993014267A1 (fr) 1993-07-22

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PCT/US1993/000205 WO1993014267A1 (fr) 1992-01-21 1993-01-19 Papier absorbant renforce

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EP (1) EP0575601A1 (fr)
WO (1) WO1993014267A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996041054A1 (fr) * 1995-06-07 1996-12-19 Kimberly-Clark Worldwide, Inc. Bandes fibreuses doublement recrepees, presentant un grande capacite d'absorption de l'eau
WO1998046825A1 (fr) * 1997-04-17 1998-10-22 Kimberly-Clark Worldwide, Inc. Produit d'essuyage crepe contenant des fibres de liaison
WO1999025924A1 (fr) * 1997-11-14 1999-05-27 Kimberly-Clark Worldwide, Inc. Tissu de base absorbant les liquides
WO2004072373A1 (fr) * 2003-02-06 2004-08-26 The Procter & Gamble Company Procede de fabrication d'une structure fibreuse comprenant des fibres de cellulose et synthetiques
US7041196B2 (en) 2003-02-06 2006-05-09 The Procter & Gamble Company Process for making a fibrous structure comprising cellulosic and synthetic fibers
US7052580B2 (en) 2003-02-06 2006-05-30 The Procter & Gamble Company Unitary fibrous structure comprising cellulosic and synthetic fibers
US7067038B2 (en) 2003-02-06 2006-06-27 The Procter & Gamble Company Process for making unitary fibrous structure comprising randomly distributed cellulosic fibers and non-randomly distributed synthetic fibers
FR2920027A1 (fr) * 2007-08-13 2009-02-20 Mickael Julien Amann Papier hygienique renforce au centre
WO2016048943A1 (fr) * 2014-09-24 2016-03-31 Georgia-Pacific Consumer Products Lp Produits de type lingettes humides préalablement humidifiées sous forme de rouleau perforé, constitués de substrats à base de tissu
US11255051B2 (en) 2017-11-29 2022-02-22 Kimberly-Clark Worldwide, Inc. Fibrous sheet with improved properties
US11371188B2 (en) 2017-12-31 2022-06-28 Paptic Oy Method of producing a fibrous product and a fibrous product
CN114892443A (zh) * 2022-05-05 2022-08-12 华南理工大学 一种高强高透层间增韧合成纤维纸基材料及其制备方法和应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1546479A1 (de) * 1964-10-08 1970-02-26 Schickedanz Ver Papierwerk Bakteriendichte Papiere fuer hygienische Zwecke
US4913773A (en) * 1987-01-14 1990-04-03 James River-Norwalk, Inc. Method of manufacture of paperboard
EP0465203A1 (fr) * 1990-07-02 1992-01-08 Hoechst Celanese Corporation Nappe améliorée non tissée liée formée humide contenant fibres bi-composants LLDPE inclus
EP0480724A1 (fr) * 1990-10-12 1992-04-15 James River Corporation Of Virginia Renforcement de non-tissés déposés par jet d'air

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1546479A1 (de) * 1964-10-08 1970-02-26 Schickedanz Ver Papierwerk Bakteriendichte Papiere fuer hygienische Zwecke
US4913773A (en) * 1987-01-14 1990-04-03 James River-Norwalk, Inc. Method of manufacture of paperboard
EP0465203A1 (fr) * 1990-07-02 1992-01-08 Hoechst Celanese Corporation Nappe améliorée non tissée liée formée humide contenant fibres bi-composants LLDPE inclus
EP0480724A1 (fr) * 1990-10-12 1992-04-15 James River Corporation Of Virginia Renforcement de non-tissés déposés par jet d'air

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996041054A1 (fr) * 1995-06-07 1996-12-19 Kimberly-Clark Worldwide, Inc. Bandes fibreuses doublement recrepees, presentant un grande capacite d'absorption de l'eau
US5674590A (en) * 1995-06-07 1997-10-07 Kimberly-Clark Tissue Company High water absorbent double-recreped fibrous webs
US5885418A (en) * 1995-06-07 1999-03-23 Kimberly-Clark Worldwide, Inc. High water absorbent double-recreped fibrous webs
WO1998046825A1 (fr) * 1997-04-17 1998-10-22 Kimberly-Clark Worldwide, Inc. Produit d'essuyage crepe contenant des fibres de liaison
US6214146B1 (en) 1997-04-17 2001-04-10 Kimberly-Clark Worldwide, Inc. Creped wiping product containing binder fibers
US6534151B2 (en) 1997-04-17 2003-03-18 Kimberly-Clark Worldwide, Inc. Creped wiping product containing binder fibers
WO1999025924A1 (fr) * 1997-11-14 1999-05-27 Kimberly-Clark Worldwide, Inc. Tissu de base absorbant les liquides
US7214293B2 (en) 2003-02-06 2007-05-08 The Procter & Gamble Company Process for making a unitary fibrous structure comprising cellulosic and synthetic fibers
US7645359B2 (en) 2003-02-06 2010-01-12 The Procter & Gamble Company Process for making a fibrous structure comprising cellulosic and synthetic fibers
US7045026B2 (en) 2003-02-06 2006-05-16 The Procter & Gamble Company Process for making a fibrous structure comprising cellulosic and synthetic fibers
US7052580B2 (en) 2003-02-06 2006-05-30 The Procter & Gamble Company Unitary fibrous structure comprising cellulosic and synthetic fibers
US7067038B2 (en) 2003-02-06 2006-06-27 The Procter & Gamble Company Process for making unitary fibrous structure comprising randomly distributed cellulosic fibers and non-randomly distributed synthetic fibers
WO2004072373A1 (fr) * 2003-02-06 2004-08-26 The Procter & Gamble Company Procede de fabrication d'une structure fibreuse comprenant des fibres de cellulose et synthetiques
US7354502B2 (en) 2003-02-06 2008-04-08 The Procter & Gamble Company Method for making a fibrous structure comprising cellulosic and synthetic fibers
US7396436B2 (en) 2003-02-06 2008-07-08 The Procter & Gamble Company Unitary fibrous structure comprising randomly distributed cellulosic and non-randomly distributed synthetic fibers
US7918951B2 (en) 2003-02-06 2011-04-05 The Procter & Gamble Company Process for making a fibrous structure comprising cellulosic and synthetic fibers
US7041196B2 (en) 2003-02-06 2006-05-09 The Procter & Gamble Company Process for making a fibrous structure comprising cellulosic and synthetic fibers
CN1745215B (zh) * 2003-02-06 2010-05-26 宝洁公司 用于制造包括纤维素和合成纤维的纤维结构的方法
FR2920027A1 (fr) * 2007-08-13 2009-02-20 Mickael Julien Amann Papier hygienique renforce au centre
WO2016048943A1 (fr) * 2014-09-24 2016-03-31 Georgia-Pacific Consumer Products Lp Produits de type lingettes humides préalablement humidifiées sous forme de rouleau perforé, constitués de substrats à base de tissu
US10351998B2 (en) 2014-09-24 2019-07-16 Gpcp Ip Holdings Llc Pre-moistened wet wipe products in perforated roll form made of tissue based substrates
US11255051B2 (en) 2017-11-29 2022-02-22 Kimberly-Clark Worldwide, Inc. Fibrous sheet with improved properties
US12043963B2 (en) 2017-11-29 2024-07-23 Kimberly-Clark Worldwide, Inc. Fibrous sheet with improved properties
US11371188B2 (en) 2017-12-31 2022-06-28 Paptic Oy Method of producing a fibrous product and a fibrous product
EP3732040B1 (fr) 2017-12-31 2023-06-07 Paptic OY Procédé de production de produit fibreux et produit fibreux
US11828025B2 (en) 2017-12-31 2023-11-28 Paptic Oy Method of producing a fibrous product and a fibrous product
CN114892443A (zh) * 2022-05-05 2022-08-12 华南理工大学 一种高强高透层间增韧合成纤维纸基材料及其制备方法和应用

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