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WO2008003343A1 - Procédé permettant de fabriquer une structure absorbante tel du papier multicouche, notamment un mouchoir en papier - Google Patents

Procédé permettant de fabriquer une structure absorbante tel du papier multicouche, notamment un mouchoir en papier Download PDF

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Publication number
WO2008003343A1
WO2008003343A1 PCT/EP2006/006630 EP2006006630W WO2008003343A1 WO 2008003343 A1 WO2008003343 A1 WO 2008003343A1 EP 2006006630 W EP2006006630 W EP 2006006630W WO 2008003343 A1 WO2008003343 A1 WO 2008003343A1
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WO
WIPO (PCT)
Prior art keywords
layer
paper
furnish
fines
strength
Prior art date
Application number
PCT/EP2006/006630
Other languages
English (en)
Inventor
Hans-Jürgen Lamb
Original Assignee
Sca Hygiene Products 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 Sca Hygiene Products Gmbh filed Critical Sca Hygiene Products Gmbh
Priority to PCT/EP2006/006630 priority Critical patent/WO2008003343A1/fr
Publication of WO2008003343A1 publication Critical patent/WO2008003343A1/fr

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002—Tissue paper; Absorbent paper

Definitions

  • the technical field to which the present invention relates is the field of making absorbent structures such as paper and especially tissue paper, including pulp or furnish preparation and paper-making on a paper machine as generally- known in the art .
  • a tissue paper is defined as a soft absorbent paper having a low basis weight.
  • the total basis weight of multiple-ply tissue products is preferably equal to a maximum of 65 g/m 2 , more preferably to a maximum of 50 g/m 2 .
  • Its density is typically below 0.6 g/cm ⁇ , preferably below 0.30 g/cm ⁇ and more preferably between 0.08 and 0.20 g/cm ⁇ .
  • tissue is distinguished from paper production by its extremely low basis weight and its much higher tensile energy absorption index (see DIN EN 12625-4 and DIN EN 12625-5) .
  • Paper and tissue paper also differ in general with regard to the modulus of elasticity that characterizes the stress-strain properties of these planar products as a material parameter.
  • a tissue's high tensile energy absorption index results from the outer or inner creping.
  • the former is produced by compression of the paper web adhering to a drying cylinder as a result of the action of a creping doctor or in the latter instance as a result of a difference e.g. in speed between two wires ("fabrics"). This causes the still moist, plastically deformable paper web to be internally broken up by compression and shearing, thereby rendering it more stretchable under load than an uncreped paper.
  • tissue paper Typical properties include the ready ability to absorb tensile stress energy, their drapability, good textile-like flexibility, a high specific volume with a perceptible thickness, as high a liquid absorbency as possible and a suitable wet and dry strength as well as an interesting optical appearance of the outer product surface.
  • first furnish is comprised of hard wood eucalyptus wood fibers
  • second furnish is made of soft wood fibers.
  • Hard wood fibers made from eucalyptus tend to be softer and more "fuzzy" to the touch and, therefore, often these fiber types are provided on outer surfaces of a paper product.
  • Fractionation is the process by which cellulosic fibers are separated according to their properties.
  • US 6,024,834 is directed to a process of separating, by fractionation, cellulosic fibers that exhibit desired properties such as fiber length and fiber coarseness values.
  • US 4,781,793 discloses a method in a paper manufacturing process for improving the properties of paper using fractionation.
  • the fiber slurry is separated into two components which are stated to contain substantially all of the fibers to be used for paper manufacture.
  • One component contains mainly fiber longer than the average distribution of fiber length in the basic stock, and the other component contains primarily shorter fibers and fines .
  • Fines and short fibers usually are regarded as the least desirable fibers in most fiber slurries. Fines comprise short portions of cellulosic material that do not appreciably contribute to paper softness.
  • US 2002/0162635 Al teaches a product and process of making an absorbent paper article such as paper products, towels, napkins and the like. It is mentioned that one may supply a single furnish, or slurry, of cellulose fibers. Then, it is possible to separate or fractionate the slurry into at least two portions based upon fiber length in the slurry. Fines are employed in the process of manufacturing the products, and fines are specifically incorporated into an inner layer of the final paper products. Fines, and/or short fibers are used in the process so they may contribute in a positive manner to the final paper product. This use of fines in the inner layers of the products reduces the manufacturing costs and waste produced in the process. A soft paper product with good strength characteristics results from the process.
  • a cellulosic fiber mixture is provided for fractionating the first cellulosic fiber mixture into a second fiber mixture having relatively short fibers and fines, and a third fiber mixture having relatively long fibers.
  • the third fiber mixture may be treated with chemical agents to soften the fibers.
  • the third fiber mixture is provided to a paper machine, thereby forming a paper sheet from the third fiber mixture on a wire former. Then, the step of adding the second fiber mixture to the upper surface of the paper sheet is provided.
  • a method of making a paper product comprises:
  • the first furnish comprises softwood fibers and the second furnish comprises hardwood fibers.
  • the first furnish is used for a strength layer and the second furnish for a softness layer of the paper.
  • the first furnish is fractionated and the separated short fiber fraction is added to the second furnish for the softness layer .
  • an absorbent structure as a paper, especially a tissue paper, consisting of at least two layers, at least one layer as an outer layer being preferably a soft layer (softness layer) and at least one layer as an inner layer or intermediate layer being preferably a layer of high strength (strength layer) comprising the steps of:
  • Tissue paper products such as handkerchiefs, cosmetic wipes, toilet papers, serviettes/napkins or kitchen towels are being distinguished from other paper products by their low basis weight and its significantly improved tensile energy absorption index.
  • the tissue paper contains as main component (in particular at least 80% by weight, relative to the dry weight of the fibrous web) cellulosic fibres, in particular pulp, although a proportional use of modified pulp fibers (e.g. from 10 to 50 weight %, relative to the total weight of the fibers) or the use of synthetic fibers suitable for web making (e.g. from 10 to 30% by weight, relative to the total weight of the fibers) is covered by the invention.
  • the origin of these fibers may be native or recycled.
  • the tissue paper may be creped or uncreped, the use of creped tissue paper being preferred.
  • the tissue paper (or the final tissue paper product obtained therefrom) can be single-ply or multi-ply with two, three, four, five, six or even more plies. Preferred tissue paper products comprise between two and four plies .
  • the tissue paper may be homogeneous or layered, wet-pressed or blow-dried (TAD-dried) .
  • TAD-dried The tissue paper includes, but is not limited to, felt-pressed tissue paper, pattern-densified tissue paper, uncompacted tissue paper or compacted tissue paper .
  • the starting material for the production of the tissue paper usually is a fibrous cellulosic material, in particular pulp.
  • the starting pulps used may relate to primary fibrous materials (raw pulps) or to secondary fibrous materials, whereby a secondary fibrous material is defined as a fibrous raw material recovered from a recycling process.
  • the primary fibrous materials may relate both to a chemically digested pulp and to mechanical pulp such as thermo mechanical pulp (TMP) , chemothermo mechanical pulp (CTMP) or high temperature chemithermomechanical pulp (HTCTMP) .
  • TMP thermo mechanical pulp
  • CMP chemothermo mechanical pulp
  • HTCTMP high temperature chemithermomechanical pulp
  • Synthetic cellulose- containing fibres can also be used. Preference is nevertheless given to the use of pulp from plant material, particularly wood-forming plants. Fibers of softwood (usually originating from conifers), hardwood (usually originating from deciduous trees) or from cotton linters can be used for example.
  • Fibres from esparto (alfa) grass, bagasse (cereal straw, rice straw, bamboo, hemp), kemp fibers, flax, and other woody and cellulosic fiber sources can also be used as raw materials.
  • the corresponding fiber source is chosen in accordance with the desired properties of the end product in a manner known from the prior art. For example, the fibers present in hardwood, which are shorter than those of softwood, lend the final product a higher stability on account of the higher diameter/ length ratio. If softness of the product is to be promoted, which is important e.g. for tissue paper, eucalyptus wood is particularly suitable as a fiber source .
  • chemical raw pulps are also preferred, whereby it is possible to use completely bleached, partially bleached, and unbleached fibers.
  • the chemical raw pulps suitable according to the invention include inter alia, sulphite pulps, kraft pulps (sulphate process).
  • a raw pulp Before a raw pulp is used in the tissue making process, it may also be advantageous to allow further delignification to occur in a separate process step or employ a bleaching process to achieve a more extensive removal of lignin after the cooking process and to obtain a completely cooked pulp.
  • a preferred production process for tissue paper uses
  • a a forming section for wet-laying a slurry of cellulosic fibrous material, typically pulp
  • a headbox and wire section portion comprising a headbox and wire section portion
  • the drying section TAD (through air drying) and/or conventional drying on the Yankee cylinder) that also may include the crepe process for tissues. This is typically followed by
  • the tissue paper can be formed by placing the fibers, in an oriented or random manner, on one of between two continuously revolving wires of a paper-making machine while simultaneously removing the main quantity of water of dilution until dry-solid contents of usually between 12 and 35% are obtained. It is possible to include additives in the paper furnish to improve the wet-strength or dry-strength or other properties of the finished tissue paper.
  • Drying the formed primary fibrous web occurs in one or more steps by mechanical and thermal means until a final dry- solids content of usually about 93 to 97% is obtained.
  • tissue making this stage is followed by the crepe process which crucially influences the properties of the finished tissue product in conventional processes.
  • the conventional dry crepe process involves creping on a drying cylinder having a diameter of usually 3.5 to 6 meter, the so- called Yankee cylinder, by means of a crepe doctor with the aforementioned final dry-solids content of the base (“raw tissue”) paper (wet creping can be used if lower demands are made of the tissue quality) .
  • the creped, final dry base tissue paper is then available for further processing into the paper product or tissue paper product according to the invention.
  • tissue paper can also be manufactured by a special kind of drying within process section b and in this way an improvement in bulk softness of the resulting tissue paper is achieved.
  • This pre-drying process which exists in a variety of subtypes, is termed the TAD (through air drying) technique. It is characterized by the fact that the "primary" fibrous web (like a non-woven) that leaves the sheet making stage is pre-dried to a dry-solids content of between 55 and 99% before final contact drying on the Yankee cylinder by blowing hot air onto the fibrous web and by contact drying of the web.
  • the fibrous web is supported by an air-permeable wire or belt and during its transport is guided over the surface of an air-permeable rotating cylinder drum.
  • Structuring the supporting imprinting fabric or belt makes it possible to produce any pattern of compressed and uncompressed zones achieved by deflection of the fibres in the moist state, followed by pre-drying of the fibres (TAD step) and leading the web through a pressure nip between a pressure roll and the Yankee cylinder surface, thereby resulting in increased mean specific volumes and consequently leading to an increase in bulk softness without decisively decreasing the strength of the fibrous web.
  • the one-ply intermediate products originating from the paper- making machine and made of lightweight paper usually dry- creped on a Yankee cylinder by means of a crepe doctor are generally described as "tissue paper” or more accurately base tissue paper.
  • tissue paper or more accurately base tissue paper.
  • the one-ply base tissue may be built up of one or a plurality of layers respectively.
  • tissue products All one-ply or multi-ply final products made of base tissue and tailored to the end user's needs, i.e. manufactured with a wide variety of requirements in mind, are known as "tissue products" .
  • an intermediate step preferably occurs with so-called doubling in which the base tissue in the finished product's desired number of plies is usually gathered on a common multiply master roll.
  • the processing step from the base tissue that has already been optionally wound up in several plies to the finished tissue product occurs in processing machines which include operations such as repeated smoothing of the tissue, edge embossing, to an extent combined with full area and/or local application of adhesive to produce ply adhesion of the individual plies (base tissue) to be combined together, as well as longitudinal cut, folding, cross cut, placement and bringing together a plurality of individual tissues and their packaging as well as bringing them together to form larger surrounding packaging or bundles.
  • the individual paper ply webs can also be pre-embossed and then combined in a roll gap according to the foot-to-foot or nested methods.
  • short fiber/ fines fraction shall be understood to mean only such a fiber fraction which provides the shorter mean fiber length after fractionating in comparison with the basic stock.
  • the mean fiber length of the "short fiber/fines fraction” is preferably at ⁇ 1,0 mm, more preferably ⁇ 0,8 mm and most preferably ⁇ 0,6 mm.
  • the mean fiber length can be determined by using so-called optical fiber length analysers (described in TAPPI method T271) . Optical fiber length analysers count the number of fibers that produce a discrete digital response from the measuring sensors. It is pointed out here that a "short fiber/fines fraction" does not mean the same as the wording "short fiber pulp", by which usually “hardwood pulp” is to be understood.
  • each fibrous material consists of fibers of different lengths, wherein, by fractionating each fibrous material is separated in fractions of different lengths.
  • fiber length distribution since the length of the individual fibers is not even constant when the type of wood and the pulping methods are the same.
  • Long fibers usually are fibers of a length > 1,8 mm and “short fibers” are fibers of a length of ⁇ 1,0 mm.
  • Long fibers usually are fibers of a length > 1,8 mm and "short fibers” are fibers of a length of ⁇ 1,0 mm.
  • “Fines” are of a length of about 0,2 mm and less.
  • Softness, haptic, absorption speed, absorption capacity, thickness etc. are negatively influenced by fines.
  • the positive impact fines can have is on strength.
  • the fines are coming with a pulp or are additionally generated by e.g. refining of the pulp.
  • Tissue, especially when it is layered can have two different functional layers, one layer is supposed to deliver strength to the tissue, normally this is a so-called hood-layer, because it is positioned near the hoodside of the tissue, the other layer is the so-called Yankee-layer, because it is positioned near the Yankee-side of the tissue and should improve softness, haptic, absorption speed and capacity, and thickness.
  • all kind of pulp contains fines even without any refining.
  • the best pulps for softness e.g. eucalyptus fibers
  • CTMP- fibers absorption
  • softness, haptic, absorption speed and capacity, thickness and strength are improved in the tissue paper product.
  • the afore-mentioned advantageous effect of the present invention is again reduced.
  • white water coming from a forming section is characterized by a high content of short fibers/fines (e.g. as a result of low retention) , which results in an undesirable increase of these short fibers/fines in the furnishes upstream the headbox. Therefore, a realistic and surprising effect is achieved for improving strength and softness when a retention-aid is added to at least one of the two furnishes upstream of the headbox, whereby the short fibers/fines content in the white water is reduced.
  • the retention-aid is added to the strength layer to increase the content of the short fibers/fines in this layer and to reduce the short fibers/ fines content in the softness layer.
  • retention-aid refers to a process chemical compound supporting the retention of solid particles within a suspension on a sieve or wire, thereby improving the runability of the drying process and reducing abrasion of the material of the sieve or wire.
  • Retention-aids are especially used during the process of papermaking in order to improve formation of the paper web.
  • Useful retention-aids are e.g. inorganic products such as aluminium sulfate (Bentonit) , natural products such as cationic starch or synthetic organic polymers such as polyacrylic amide, polyethyleneimine, polyamido amine or polyethyleneoxide .
  • Fig. 1 is a schematic view showing a method for manufacturing two-layer paper
  • Fig. 2 shows a similar schematic view of a method for manufacturing two-layer paper according to another embodiment
  • Fig. 3-1, 3-2 and 3-3 graphs show by curves the fiber length distributions of long fiber furnish and short fiber furnish.
  • Fig. 1 and Fig. 2 are showing views being self-explanatory. As far as the methods for manufacturing paper and tissue are concerned the methods contain the usual paper and tissue manufacturing steps. Nevertheless, for simplicity reasons, the steps shown in Figs. 1 and 2 are only focussed on the essential features of the present invention.
  • the embodiments are illustrated for a two-layer paper and especially a two-layer tissue paper manufactured in a tissue paper-making machine optionally including wet creped or dry creped or through-air-drying (TAD) or any other manufacturing process.
  • TAD through-air-drying
  • the first furnish is destined for the strength layer of the paper, independently on the fact whether a two-layer paper or a multi-layer paper with more than two layers is manufactured.
  • the second furnish is destined for the softness layer being an outer layer.
  • For the first furnish primarily softwood pulp is used and primarily for the second furnish hardwood pulp is used.
  • the second furnish is fractionated and the such achieved short fibers/fines fraction is added to the first furnish in order to achieve in the manufactured paper a strength layer of higher strength.
  • This causes simultaneously the manufacture of a softness layer of higher softness .
  • Fractionating can be accomplished by standard processes, e.g. by screening in a screen cylinder. Fractionating should be carried out using a suitable fractionating device such as e.g. low-consistence washers, intermediate-consistency washers, high-consistency washers flotation cells, flotation machines, centrifugal cleaners, pressure screens and gravity screens.
  • Fig. 3-1 is illustrated the fiber length distribution of a hardwood furnish (second furnish) and a softwood furnish (first furnish).
  • the hardwood furnish is fractionated leading to a short fiber/ fines fraction and a long fiber fraction (Fig. 3-2).
  • the short fiber/fines fraction is being transferred to the softwood furnish (first furnish) , thereby resulting in a mixture of softwood refined and hardwood short fiber/fines fraction (Fig. 3-3) .
  • Fig. 3-1, 3-2 and 3-3 show the essential features of the invention.
  • hood side and the Yankee side are indicated, which relates to the Yankee dryer and the position of the strength layer and the softness layer respectively in relation to the hood surrounding the Yankee cylinder and the Yankee cylinder itself. If a TAD-dryer is present in the paper machine the hood side is similar to the air side and the Yankee side is similar to the dryer side with respect to the TAD fabric running through the TAD drying section of the paper machine.
  • the Table is self-explanatory and is not to be described in all detail. Strength is presented by dry tensile strength and dry breaking length and the Table 1 shows different results under different circumstances.
  • the desintegrator time indicates the time used for disintegrating the cellulose pulp. Softwood refers to is long fibrous pine sulfate and eucalyptus is hardwood pulp.
  • Table 1 shows that according to the invention (lab number 26- 2) the addition of 10% hardwood short fiber/fines fraction from the second furnish (softness layer) to the first furnish (strength layer) leads to higher strength.
  • softwood pulp is used for strength layer of paper and hardwood pulp for softness layer of a multi- layer paper, wherein strength layer means that strength is of priority and softness layer that softness is of priority.
  • Fig.2 is a schematic view similar to the view in Fig.l, added by two separate layers within one headbox for each furnish and a former of the paper machine.
  • the white water from the former is returned to each furnish for dilution.
  • a retention aid is added to the first furnish and optionally also to the second furnish. This is an essential feature in contrast to the method illustrated in Fig.l.
  • the increase of the fines content in the Yankee layer caused by the dilution with white water I is from 3.3% (d) to 7.5% (f)) . Accordingly, the fines content in the Hood layer increases from 11.8% (c)) to 15.7% (e) ) due to the dilution of the stock with white water I.
  • fractionating according to the invention results in an increasing difference of the fines content between the Hood layer and the Yankee layer of 0.1% (7.4% - 7.3% : no fractionation) to 1.1% (7.9% - 6.8% : fractionation) .
  • This difference can further be increased by adding retention-aids thereby raising the retention of from 60% to 95%.
  • the resulting difference is now 5.2% (10.1% - 4.9%) instead of 1.1% for a retention of 60%.
  • retention-aids can be added to the strength layer (c)) as well as to the softness layer (d) ) .
  • retention-aids should preferably be added to the strength layer (c)) .
  • Retention-aids are normally added in an amount of approximately lOOg up to 50Og per ton of fibers.

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Abstract

La présente invention concerne un procédé de fabrication de papier multicouche, dans lequel une couche correspond à une couche résistante offrant principalement des caractéristiques de résistance et l'une des couches au moins est une couche souple offrant des caractéristiques de souplesse. Le fractionnement de la composition destinée à la couche souple permet d'accroître la souplesse, la résistance, l'haptique, la vitesse et la capacité d'absorption, ainsi que l'épaisseur grâce à l'ajout de courtes fibres/fines fractionnées à l'autre composition destinée à une couche résistante.
PCT/EP2006/006630 2006-07-06 2006-07-06 Procédé permettant de fabriquer une structure absorbante tel du papier multicouche, notamment un mouchoir en papier WO2008003343A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/EP2006/006630 WO2008003343A1 (fr) 2006-07-06 2006-07-06 Procédé permettant de fabriquer une structure absorbante tel du papier multicouche, notamment un mouchoir en papier

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Application Number Priority Date Filing Date Title
PCT/EP2006/006630 WO2008003343A1 (fr) 2006-07-06 2006-07-06 Procédé permettant de fabriquer une structure absorbante tel du papier multicouche, notamment un mouchoir en papier

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Cited By (8)

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US8894813B2 (en) 2012-08-17 2014-11-25 Kimberly-Clark Worldwide, Inc. Absorbent barrier tissue
US9222224B2 (en) 2011-09-21 2015-12-29 Kimberly-Clark Worldwide, Inc. Tissue product comprising bamboo
US9283730B2 (en) 2012-08-17 2016-03-15 Kimberly-Clark Worldwide, Inc. High basis weight creped tissue
WO2017165790A1 (fr) * 2016-03-24 2017-09-28 The Procter & Gamble Company Procédé de production de produits serviettes et mouchoirs solides et doux
US9951477B2 (en) 2012-08-17 2018-04-24 Kimberly-Clark Worldwide, Inc. High basis weight tissue with low slough
US9976260B2 (en) 2015-03-20 2018-05-22 Kimberly-Clark Worldwide, Inc. Soft high basis weight tissue
US11035078B2 (en) 2018-03-07 2021-06-15 Gpcp Ip Holdings Llc Low lint multi-ply paper products having a first stratified base sheet and a second stratified base sheet
US11053643B2 (en) 2017-02-22 2021-07-06 Kimberly-Clark Worldwide, Inc. Layered tissue comprising non-wood fibers

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US20030121629A1 (en) * 2001-12-19 2003-07-03 Kimberly-Clark Worldwide, Inc. Use of fractionated fiber furnishes in the manufacture of tissue products, and products produced thereby

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US4781793A (en) * 1986-07-04 1988-11-01 Valmet Oy Method for improving paper properties in multiply paper using long and short fiber layers
US6024834A (en) * 1996-12-17 2000-02-15 Kimberly-Clark Worldwide, Inc. Fractionation process for cellulosic fibers
US5785813A (en) * 1997-02-24 1998-07-28 Kimberly-Clark Worldwide Inc. Method of treating a papermaking furnish for making soft tissue
US20020162635A1 (en) * 2000-06-30 2002-11-07 Hsu Jay C. Softer and higher strength paper products and methods of making such products
US20030121629A1 (en) * 2001-12-19 2003-07-03 Kimberly-Clark Worldwide, Inc. Use of fractionated fiber furnishes in the manufacture of tissue products, and products produced thereby

Cited By (19)

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Publication number Priority date Publication date Assignee Title
US9222224B2 (en) 2011-09-21 2015-12-29 Kimberly-Clark Worldwide, Inc. Tissue product comprising bamboo
US9410291B2 (en) 2011-09-21 2016-08-09 Kimberly-Clark Worldwide, Inc. Tissue product comprising bamboo
US9283730B2 (en) 2012-08-17 2016-03-15 Kimberly-Clark Worldwide, Inc. High basis weight creped tissue
US9499942B2 (en) 2012-08-17 2016-11-22 Kimberly-Clark Worldwide, Inc. High basis weight creped tissue
US9951477B2 (en) 2012-08-17 2018-04-24 Kimberly-Clark Worldwide, Inc. High basis weight tissue with low slough
US8894813B2 (en) 2012-08-17 2014-11-25 Kimberly-Clark Worldwide, Inc. Absorbent barrier tissue
US11028539B2 (en) 2015-03-20 2021-06-08 Kimberly-Clark Worldwide, Inc. Soft high basis weight tissue
US11634869B2 (en) 2015-03-20 2023-04-25 Kimberly-Clark Worldwide, Inc. Soft high basis weight tissue
US9976260B2 (en) 2015-03-20 2018-05-22 Kimberly-Clark Worldwide, Inc. Soft high basis weight tissue
US10544546B2 (en) 2015-03-20 2020-01-28 Kimberly-Clark Worldwide, Inc. Soft high basis weight tissue
US11001972B2 (en) 2015-03-20 2021-05-11 Kimberly-Clark Worldwide, Inc. Soft high basis weight tissue
US10385508B2 (en) 2016-03-24 2019-08-20 The Procter & Gamble Company Process for producing strong and soft tissue and towel products
US11047090B2 (en) 2016-03-24 2021-06-29 The Procter & Gamble Company Process for producing strong and soft tissue and towel products
WO2017165790A1 (fr) * 2016-03-24 2017-09-28 The Procter & Gamble Company Procédé de production de produits serviettes et mouchoirs solides et doux
US11834787B2 (en) 2016-03-24 2023-12-05 The Procter & Gamble Company Process for producing strong and soft tissue and towel products
US11053643B2 (en) 2017-02-22 2021-07-06 Kimberly-Clark Worldwide, Inc. Layered tissue comprising non-wood fibers
US11634870B2 (en) 2017-02-22 2023-04-25 Kimberly-Clark Worldwide, Inc. Layered tissue comprising non-wood fibers
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