WO2004001128A1 - Materiau d'essuyage nontisse presentant des proprietes de liberation de sels quaternaires ameliorees - Google Patents

Materiau d'essuyage nontisse presentant des proprietes de liberation de sels quaternaires ameliorees Download PDF

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Publication number
WO2004001128A1
WO2004001128A1 PCT/US2003/019685 US0319685W WO2004001128A1 WO 2004001128 A1 WO2004001128 A1 WO 2004001128A1 US 0319685 W US0319685 W US 0319685W WO 2004001128 A1 WO2004001128 A1 WO 2004001128A1
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WO
WIPO (PCT)
Prior art keywords
chemical
chemical blocking
fibers
blocking material
polyamide
Prior art date
Application number
PCT/US2003/019685
Other languages
English (en)
Inventor
Vaughan Richard Annis
Melissa Cline
Original Assignee
Ahlstrom Windsor Locks Llc
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 Ahlstrom Windsor Locks Llc filed Critical Ahlstrom Windsor Locks Llc
Priority to EP03761238A priority Critical patent/EP1540079A4/fr
Priority to US10/518,180 priority patent/US20050245151A1/en
Priority to AU2003256283A priority patent/AU2003256283A1/en
Publication of WO2004001128A1 publication Critical patent/WO2004001128A1/fr

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/59—Polyamides; Polyimides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/005—Antimicrobial preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43828—Composite fibres sheath-core
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/49—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/46—Compounds containing quaternary nitrogen atoms
    • D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/423—Amino-aldehyde resins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/55—Epoxy resins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/24—Polyesters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2311—Coating or impregnation is a lubricant or a surface friction reducing agent other than specified as improving the "hand" of the fabric or increasing the softness thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2525—Coating or impregnation functions biologically [e.g., insect repellent, antiseptic, insecticide, bactericide, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]

Definitions

  • the present invention relates generally to a new and improved method for increasing the release of a cationic component of a lotion solution from a nonwoven wet wipe material and the wet wipe comprising cellulose material produced therefrom.
  • Nonwoven fibrous web material is commonly cut into individual wiping sheets. Some cut sheets may be used dry as absorbent wipers. More typically, the individual sheets are soaked or saturated with a chemical lotion suited for an intended end use, stacked and wrapped in a liquid tight package for subsequent dispensing.
  • the chemical lotion often includes emulsifiers, pH buffers, perfumes and the like.
  • the liquid tight packaging maintains the saturated condition of the wiping sheet until use.
  • Such premoistened wiping sheets also called wet wipes or simply, wipes, are commonly used by consumers for cleaning or wiping, particularly when wash water is not readily available or cannot be conveniently used. Absorption capacity of such wiping sheet for lotion solutions is an important property. A high wet tensile strength to resist tearing or puncturing of the wet wipe during dispensing and use is also very desirable. Drapeability and hand of the wet wipe are further important to achieve the "feel" required for customer acceptance.
  • Disinfectant wet wipes include stronger disinfectant materials in amounts sufficient to dispense the disinfectant material to a wiped surface. Use of such wipes may leave a small amount of disinfectant material on the wiped surface. Contact with the disinfectant material, either saturated in the wipe or remaining on the wiped surface, lessens the number of unwanted organisms on the wiped surface.
  • One known group of disinfectant materials are cationic, quaternary ammonium salts such as, for example, dimethyl benzyl ammonium chloride and dimethyl ethylbenzyl ammonium chloride. It has been noted that cellulose containing wipe materials do not fully release all of the components of the lotion saturated therein. Cationic compounds in the lotion are especially retained by cellulose containing wipe materials. This has become particularly a problem with disinfectant wipes, as manufacturers are required to add more than a desired amount of disinfectant material to ensure a sufficient amount of disinfectant material is released to the wiped surface. Overadding such disinfectant material adds cost and may raise environmental and health and safety issues.
  • wet wipes consisting of 100% synthetic materials such as polyester or polyolefins do not retain cationic materials, however, such wet wipes have different, and typically less desirable, performance characteristics as compared to a wet wipe comprising cellulose materials.
  • Wet wipes consisting of 100% synthetic materials, such as polyester and polyolefins, are not encompassed by the present invention.
  • Bicomponent fibers or filaments Fibers or filaments that have been formed by extruding polymer sources from separate extruders and spun together to form a single fiber or filament.
  • two separate polymers are extruded, although a bicomponent fiber or filament encompasses extrusion of the same polymeric material from separate extruders.
  • the extruded polymers are arranged in substantially constantly positioned distinct zones across the cross-section of the bicomponent fibers or filaments and extend substantially continuously along the length of the bicomponent fibers or filaments.
  • the shape of these bicomponent fibers or filaments can be any which is convenient to the producer for the intended end use, e.g., round, trilobal, triangular, dog-boned, flat or hollow.
  • bicomponent fibers or filaments can be symmetric (e.g., sheath/core or side-by-side) or they can be asymmetric (e.g., offset core within sheath; crescent/moon configuration within a fiber having an overall round shape).
  • Cellulose material Manmade (e.g. regenerated cellulose or lyocell and non- manmade (e.g. from natural sources such as woody and non-woody plants) material.
  • Woody plants include, for example, deciduous and coniferous trees.
  • Non-woody plants include, for example, cotton, flax, esparto grass, sisal, abaca, milkweed, straw, jute, hemp, and bagasse.
  • Cellulose material includes fiber, pulp and other forms.
  • Cross machine direction (CD) The direction perpendicular to the machine direction.
  • Denier - A unit used to indicate the fineness of a filament given by the weight in grams for 9,000 meters of filament.
  • a filament of 1 denier has a mass of 1 gram for 9,000 meters of length.
  • Fiber - A material form characterized by an extremely high ratio of length to diameter.
  • Lyocell - Manmade cellulose material obtained by the direct dissolution of cellulose in an organic solvent without the formation of an intermediate compound and subsequent extrusion of the solution of cellulose and organic solvent into a coagulating bath.
  • Machine direction The direction of travel of the forming surface onto which fibers are deposited during formation of a nonwoven web material.
  • Non-thermoplastic material Any material which does not fall within the definition of thermoplastic material.
  • Nonwoven fabric, sheet or web - A material having a structure of individual fibers which are interlaid, but not in an identifiable manner as in a knitted fabric.
  • Nonwoven materials have been formed from many processes such as, for example, meltblowing, spunbonding, water laying, air laying and carding processes.
  • the basis weight of nonwoven fabrics is usually expressed in grams per square meter (gsm) and the fiber fineness is measured in denier.
  • Polymer - Generally includes, for example, homopolymers, copolymers, such as for example, block, graft, random and alternating copolymers, terpolymers, etc, and blends and modifications thereof. Furthermore, unless otherwise specifically limited, the term "polymer” includes all possible geometrical configurations. These configurations include, for example, isotactic, syndiotactic and random symmetries.
  • Regenerated cellulose - Manmade cellulose obtained by chemical treatment of natural cellulose to form a soluble chemical derivative or intermediate compound and subsequent decomposition of the derivative to regenerate the cellulose.
  • Regenerated cellulose includes spun rayon and regenerated cellulose processes include the viscose process, the cuprammonium process and saponification of cellulose acetate.
  • Spunbond nonwoven fabrics - Fabrics formed (usually) in a single process by extruding at least one molten thermoplastic material as filaments from a plurality of fine, usually circular, capillaries of a spinneret. The filaments are partly quenched and then drawn out to reduce fiber denier and increase molecular orientation within the fiber.
  • the filaments are generally continuous and not tacky when they are deposited onto a collecting surface as a fibrous batt.
  • the fibrous batt is then bonded by, for example, thermal bonding, chemical binders, mechanical needling, hydraulic entanglement or combinations thereof, to produce a nonwoven fabric.
  • Tex - A unit used to indicate the fineness of a filament given by the weight in grams for 1 ,000 meters of filament.
  • a filament of 1 tex has a mass of 1 gram for 1 ,000 meters of length.
  • Thermoplastic material A polymer that is fusible, softening when exposed to heat and returning generally to its unsoftened state when cooled to room temperature.
  • Thermoplastic material includes, for example, polyvinyl chloride, some polyesters, polyamide, polyfluorocarbon, polyolefin, some polyurethanes, polystyrene, polyvinyl alcohol, caprolactam, copolymers of ethylene and at least one vinyl monomer (e.g., poly (ethylene vinyl acetate), and acrylic resin.
  • One aspect of the invention comprises method for increasing the release of a cationic component of a chemical lotion from a nonwoven wet wipe material and the wet wipe comprising cellulose material produced therefrom.
  • This method comprises adding a chemical blocking material to nonwoven fabric prior to saturation of the fabric with the lotion.
  • the chemical blocking material is believed to interact with the cellulose material comprising the nonwoven web to prevent chemical bonding of cationic lotion components during subsequent impregnation and storage of the wet wipe.
  • the compositions of the invention may be alternately formulated to comprise, consist of, or consist essentially of, any appropriate components herein disclosed.
  • compositions of the invention may additionally, or alternatively, be formulated so as to be devoid, or substantially free, of any components, materials, ingredients, adjuvants or species used in the prior art compositions or that are otherwise not necessary to the achievement of the function and/or objectives of the present invention.
  • the nonwoven material useful in the present invention comprises about 20% to about 100% percent by weight of at least one cellulose material.
  • the cellulose material can be selected from substantially any class of natural and manmade cellulose materials and blends thereof.
  • the nonwoven material in some variations of the invention may comprise cellulose pulp.
  • the pulp component can be selected from substantially any class of pulp and blends thereof.
  • the pulp is characterized by being entirely natural cellulose fibers and can include cotton as well as wood fibers, although softwood paper making pulp, such as spruce, hemlock, cedar and pine are typically employed.
  • wood pulp comprises about 40% to about 100% of the nonwoven material weight. Hardwood pulp and non-wood pulp, such as hemp and sisal may also be used.
  • the nonwoven material in some variations of the invention may comprise long vegetable fibers and particularly the extremely long, natural, unbeaten fibers such as manila hemp, caroa, flax, jute and Indian hemp. These very long natural fibers supplement the strength characteristics provided by other papermaking materials and, at the same time, provide a limited degree of bulk and absorbency coupled with a natural toughness and burst strength. Accordingly, the manila hemp or comparable fibers may be included in varying amounts.
  • the nonwoven material in some variations of the invention may comprise manmade cellulose material such as rayon fiber, lyocell fiber or combinations thereof.
  • manmade cellulose material comprises about 0% to about 40% by weight of the nonwoven web material.
  • the manmade cellulose material may be comprised of staple length fibers.
  • the manmade cellulose material is comprised of fibers having a length of about 4 mm to about 12 mm and a fineness of about 1.0 denier to about 6.0 denier. As will be appreciated, longer fibers may be used where desired so long as they can be readily dispersed within the aqueous slurry of the other fibers.
  • the nonwoven material in some variations of the invention may comprise synthetic material such as, for example, polyolefin.
  • synthetic material comprises about 0% to about 60% of the nonwoven web material.
  • the synthetic material may be comprised of synthetic pulp or staple length fibers.
  • the synthetic fibers typically have a length of about 4 mm to about 20 mm and a fineness of about 1.0 denier to about 18.0 denier, although other fiber lengths and/or den iers may also be useful in the invention.
  • the nonwoven material in some variations of the invention may comprise bicomponent fibers or filaments.
  • bicomponent fibers or filaments comprise about 0% to about 20% of the nonwoven web material.
  • the bicomponent fibers typically have a length of about 0.6 mm to about 20.0 mm and a fineness of about 1 .5 denier to about 9.0 denier, although other bicomponent fiber lengths and/or deniers may also be useful in the invention.
  • the bicomponent fibers may comprise polymers of, for example, polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET) in any combination.
  • PE/PP, PE/PET, and PET/PET are preferred polymer combinations for the bicomponent fibers, especially when configured as a higher melting point core and a lower melting point sheath.
  • Celbond T-105, a 12.7 mm by 3 denier PE/polyester bicomponent fiber available from Kosa of Spartanburg S.C. is an example of one bicomponent fiber found useful in the invention.
  • the nonwoven fabric useful in the present invention may be prepared by, for example, fluid laying, air laying, carding or combinations thereof such as spunlacing.
  • the fluid laying process involves the general steps of forming a fluid dispersion of the requisite material, depositing the dispersed material on a forming surface in the form of a continuous sheet-like mat and drying the mat to form a web material.
  • the dispersion may be formed in a conventional manner to provide a furnish comprising water, cellulose material and optionally other fibers and/or pulp.
  • the total concentration of cellulose material and fibers in the furnish will be a function of the equipment used, desired equipment processing parameters and desired resulting nonwoven material properties.
  • other known papermaking aids and treatments can be incorporated into the invention.
  • dispersing agents or wet strength agents may be incorporated into the furnish.
  • These materials constitute only a minor portion of the furnish, typically less than one percent by weight, and facilitate uniform fiber deposition while providing the web in its wet condition with sufficient strength for subsequent handling.
  • These agents may include natural materials, such as guar gum, karaya gum and the like as well as man-made resin additives.
  • fibers are dispersed in air and the air suspension of fibers is drawn to a forming surface. Fibers are retained on the forming surface to form a nonwoven web material that is accumulated.
  • fibers are processed through a machine comprising sets of cards to form a nonwoven web material.
  • the nonwoven fabric useful in the present invention may also be prepared by entangling cellulose material into, for example, a spunbond web material of thermoplastic filaments. Entanglement of the cellulose material can be achieved by, for example, hydroentanglement.
  • the nonwoven fabric useful in the present invention includes multi phase materials prepared by successively wet laying subsequent furnishes over the first laid down furnish and multi layer web materials.
  • the nonwoven fabric useful in the present invention may be hydroentangled.
  • Hydroentanglement treatment entangles together the fibers forming the web material.
  • Hydroentanglement is advantageous for developing a desirable cloth-like structure, for improving bulk of the resulting nonwoven material, for increasing tensile strength of the resulting nonwoven material and, in some cases, for improving fluid absorption characteristics of the resulting nonwoven material.
  • the hydroentangling operation is carried out in the manner set forth in U.S. Patent No. 5,009,747 to Viazmensky et al, the disclosure of which is incorporated by reference herein. While the Viazmensky patent relates to a nonwoven web material having a different fiber content, the hydroentangling operation described therein can efficaciously be employed with the present web material.
  • the entanglement process can be carried out on the forming wire and advantageously using total energy input of about 0.01 to about 0.20 horsepower-hours per pound of web (Hp-hr/lb). It should be understood that energy inputs greater than 0.20 Hp-hr/lb can be used in the practice of the invention.
  • hydroentanglement is performed while the mat is still somewhat wet and prior to a final drying operation so that the resulting web material will have desired wet strength characteristics without significantly hampering or detracting from the high absorbency characteristics imparted to the web by the hydroentangling operation.
  • Some embodiments of the inventive web material include the addition of one or more chemical binders to increase strength of the nonwoven substrate.
  • Suitable materials for use as a binder include, for example, acrylics, SBRs, and ethylene vinyl acetates latexes.
  • the binder can be added at any convenient time, for example in the furnish or after production of the nonwoven web, for example by using a size press.
  • One aspect of the invention comprises a method of increasing the release of cationic components from a lotion solution saturated into the nonwoven wet wipe material.
  • This method comprises adding a chemical blocking material to a nonwoven material prior to saturation of the lotion solution into the nonwoven material.
  • the chemical blocking material unexpectedly reduces the amount of cationic lotion component retained on the wet wipe saturated with the lotion solution.
  • the chemical blocking material is believed to interact with the cellulose material in the web to prevent chemical bonding of cationic lotion components during saturation and storage of the wet wipe.
  • Advantageous chemical blocking materials useful in this aspect of the invention include, for example, polyamide-epichlorohydrin resin; polyamide resin; melamine resin; high molecular weight cationic chemical material such as fabric softener or other quaternary compounds.
  • polyamide-epichlorohydrin resin useful in the invention is a cationic, water soluble, thermosetting reaction product of epichlorohydrin and polyamide sold under the tradename KYMENE by Hercules Chemical Company.
  • the chemical blocking material used must not deleteriously affect the properties such as, for example, absorption capacity, wet strength and "feel" that are desirable for use in a wet wipe application.
  • the polyamide-epichlorohydrin resin is advantageously used in this respect as a chemical blocking material in the present invention.
  • High molecular weight cationic materials such as fabric softeners may undesirably lessen the strength of wet laid nonwoven materials.
  • the amount of chemical blocking material added must be sufficient to lessen chemical bonding of cationic lotion components with cellulose material of the nonwoven web, but must not be so great as to deleteriously affect nonwoven sheet properties that are desirable for use in a wet wipe application.
  • the polyamide- epichlorohydrin resin is advantageously used in amounts ranging from about 1.0% to about 5.0% or more based on weight of cellulose material in the nonwoven web.
  • the polyamide-epichlorohydrin resin is used in amounts ranging from about 1.5% to about 5.0% or more based on weight of cellulose material in the nonwoven web.
  • the chemical blocking material is preferably added during furnish preparation in wet laid nonwoven materials. Addition of some chemical blocking materials, for example polyamide-epichlorohydrin resin, during furnish preparation at amounts greater than about 2% may lead to processing problems during wet laying of the furnish. It is believed that addition of a chemical blocking material to a wet laid nonwoven material in amounts greater than 2% may be more efficaciously carried out using a spray application or a size press application. The chemical blocking material can be added to air laid or carded nonwoven sheet via a size press or spray application.
  • absorptive capacity refers to the capacity of the material to absorb liquid (i.e., water or aqueous solution) over a period of time and is related to the total amount of liquid absorbed and held by a material at its point of saturation.
  • the total absorptive capacity is generally determined by measuring the increase in the weight of the sample material resulting from the absorption of a liquid. More particularly, to test for absorptive capacity, a 3 inch by 3 inch sample is preweighed and saturated by soaking in water for 60 seconds. The saturated sample is suspended by one corner within a 1 ,500 ml covered beaker containing 200 ml of water. The sample is allowed to hang suspended for 10 minutes. After hanging for 10 minutes the saturated sample is weighed. Absorptive capacity is calculated using the following formula:
  • Disposable wet wipes of the type described in the application will typically have an absorptive capacity of at least 300 percent, with most webs having an absorptive capacity of about 500 percent and more.
  • Cationic component release can be evaluated by the following procedure.
  • the concentration of cationic component in a test solution is measured using an appropriate known analytical technique.
  • a fixed amount of a test solution (3.5 grams of liquid/gram of nonwoven material) having a known concentration of a cationic component is poured onto the nonwoven material and allowed to equilibrate for a predetermined period of time (e.g 24 hours, 1 week, 1 month). After the equilibration period, the test solution is squeezed and collected from the nonwoven material.
  • the concentration of cationic component is measured in the expressed test solution.
  • the amount of cationic component in the test solution minus the amount of cationic component in the expressed solution is equal to the amount of cationic component retained on nonwoven material.
  • EXAMPLE 1 A series of nonwoven substrates were produced on a pilot paper forming machine at different levels of polyamide epichlorohydrin addition. Samples were formed using a fiber furnish composed of 20 % 8 mm x 1.5 denier viscose rayon fiber, 10 % Celbond T-105 Y 2 " x 3.0 denier bicomponent fiber, 5% 10mm x 1.5 dpf polyester fiber and a blend of 65% wood pulp that consisted of 66% Irving northern softwood and 33% Brunswick Southern Pine.
  • Hercules Chemical Co. was added to the furnish while in the pulper. Addition rates were controlled to yield samples containing 0%, 0.4%, 0.8%, 1.2%, 1.8% and 2.4% active Kymene LX based on weight of the cellulose portion of the furnish (both rayon and wood pulp).
  • the furnish was laid on a paper forming machine samples having a speed of 75 fpm to provide substrate samples having an ultimate basis weight of 47 gm/m 2 .
  • the wet substrates were water jet entangled using two injectors, containing nozzle strips having 51 holes/inch, with the orifice diameter at 92 microns.
  • the nozzle pressures were set at 400 and 450 psi.
  • the settings provided an entanglement energy input of about 0.0331 HP-hr/lb.
  • the substrate samples were then dried on rotary steam drying cans with a maximum temperature of 300 degrees Fahrenheit to provide wiping substrates comprising different amounts of polyamide epichlorohydrin.
  • the wiping substrates were cut to provide samples and each sample was saturated with a solution containing BZK (a blend of Dimethyl Benzl Ammonium
  • Chloride and Dimethyl Ethylbenzyl Ammonium Chloride having a concentration of 0.29% of cationic, quaternary ammonium salts. After 5 days of equilibrating solution was expressed from the saturated wipe and tested to determine how much quaternary compound remained in solution and how much was retained by the cellulose.
  • a two phase wiping material can be prepared by dispersing about 20% polypropylene fibers, about 20% polyester fibers, about 60% wood pulp and about 2% polyamide-epichlorohydrin resin (based on weight of the pulp) in water to form a furnish.
  • the prepared furnish can be divided into two portions.
  • the first furnish portion can be provided through the headbox and onto the forming fabric of an inclined fourdrinier papermaking machine.
  • the second furnish portion can be provided through a second headbox displaced downstream from the first headbox and onto the previously laid first furnish to form a two phase wet mat.
  • the wet mat can be supported on the forming fabric and passed under water jet entanglement nozzles during the entanglement operation.
  • the entangled wet mat can then be dried on steam heated rotary drying cans as is known.
  • the 2% addition of polyamide-epichlorohydrin resin interacts with the cellulose wood pulp and prevents chemical bonding of cationic lotion components thereto, providing increased release of the cationic lotion components.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Biomedical Technology (AREA)
  • Mechanical Engineering (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Nonwoven Fabrics (AREA)
  • Paper (AREA)

Abstract

Selon la présente invention, des voiles fibreux qui retiennent moins de constituants de lotion cationique sont obtenues par traitement des fibres du voile à l'aide d'une solution constituée d'un matériau de blocage chimique avant humectation de la bande à l'aide d'une lotion chimique contenant le constituant de lotion cationique. Le matériau de blocage chimique peut comprendre au moins une résine polyamide-épichlorohydrine; une résine polyamide; une résine mélamine; ou un composé chimique cationique de poids moléculaire élevé. La bande ainsi obtenue peut être utilisée dans la fabrication de lingettes humides et notamment de lingettes humides désinfectantes.
PCT/US2003/019685 2002-06-21 2003-06-20 Materiau d'essuyage nontisse presentant des proprietes de liberation de sels quaternaires ameliorees WO2004001128A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03761238A EP1540079A4 (fr) 2002-06-21 2003-06-20 Materiau d'essuyage nontisse presentant des proprietes de liberation de sels quaternaires ameliorees
US10/518,180 US20050245151A1 (en) 2002-06-21 2003-06-20 Nonwoven wiping material with improved quaternary salt release properties
AU2003256283A AU2003256283A1 (en) 2002-06-21 2003-06-20 Nonwoven wiping material with improved quaternary salt release properties

Applications Claiming Priority (2)

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US39059902P 2002-06-21 2002-06-21
US60/390,599 2002-06-21

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EP3144376A1 (fr) * 2015-09-16 2017-03-22 Lenzing Aktiengesellschaft Utilisation d'une fibre lyocell
WO2018132684A1 (fr) * 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Matériau non tissé pour le nettoyage et la désinfection de surfaces
WO2018132688A1 (fr) * 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Matériau non tissé de nettoyage et de désinfection de surfaces
WO2018132692A1 (fr) * 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Matériau non tissé pour le nettoyage et la désinfection de surfaces
WO2018184048A1 (fr) * 2017-04-03 2018-10-11 Lenzing Ag Bande non tissée conçue pour être utilisée comme substrat de lingettes
WO2018184040A1 (fr) * 2017-04-03 2018-10-11 Lenzing Ag Bande non tissée conçue pour être utilisée dans une lingette de nettoyage et de désinfection
EP3910102A1 (fr) * 2020-05-12 2021-11-17 Glatfelter Gernsbach GmbH Étoffe non tissée contenant un agent de désinfection et son procédé de production

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US8859481B2 (en) * 2005-12-15 2014-10-14 Kimberly-Clark Worldwide, Inc. Wiper for use with disinfectants
DE202010018072U1 (de) * 2010-10-22 2013-12-02 Albaad Deutschland Gmbh Feuchtes Waschmitteltuch
US8809213B2 (en) * 2011-02-14 2014-08-19 Tietex International, Ltd Applicator for sanitizing and/or disinfecting solution
US9926654B2 (en) 2012-09-05 2018-03-27 Gpcp Ip Holdings Llc Nonwoven fabrics comprised of individualized bast fibers
BR112015022238A2 (pt) 2013-03-15 2017-07-18 Georgia Pacific Consumer Products Lp tecidos não urdidos de fibras liberianas individualizadas curtas e produtos feitos a partir destes
MX367539B (es) 2013-03-15 2019-08-26 Gpcp Ip Holdings Llc Sustrato de limpieza dispersable en agua.
US11130933B2 (en) 2016-01-20 2021-09-28 Rockline Industries, Inc. Wet wipes containing hydroxy acetophenone and cocamidopropyl PG dimonium chloride phosphate
US11660363B2 (en) * 2016-05-12 2023-05-30 Michael McGrade Beverage can sanitizer

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3144376A1 (fr) * 2015-09-16 2017-03-22 Lenzing Aktiengesellschaft Utilisation d'une fibre lyocell
WO2017046044A1 (fr) * 2015-09-16 2017-03-23 Lenzing Aktiengesellschaft Utilisation d'une fibre lyocell
CN107949630A (zh) * 2015-09-16 2018-04-20 连津格股份公司 莱塞尔纤维的用途
RU2720084C2 (ru) * 2015-09-16 2020-04-24 Ленцинг Акциенгезелльшафт Применение лиоцельного волокна
TWI705171B (zh) * 2015-09-16 2020-09-21 奧地利商蘭仁股份有限公司 萊賽爾（ｌｙｏｃｅｌｌ）纖維之用途
WO2018132684A1 (fr) * 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Matériau non tissé pour le nettoyage et la désinfection de surfaces
WO2018132688A1 (fr) * 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Matériau non tissé de nettoyage et de désinfection de surfaces
WO2018132692A1 (fr) * 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Matériau non tissé pour le nettoyage et la désinfection de surfaces
WO2018184048A1 (fr) * 2017-04-03 2018-10-11 Lenzing Ag Bande non tissée conçue pour être utilisée comme substrat de lingettes
WO2018184040A1 (fr) * 2017-04-03 2018-10-11 Lenzing Ag Bande non tissée conçue pour être utilisée dans une lingette de nettoyage et de désinfection
EP3910102A1 (fr) * 2020-05-12 2021-11-17 Glatfelter Gernsbach GmbH Étoffe non tissée contenant un agent de désinfection et son procédé de production
WO2021228868A1 (fr) * 2020-05-12 2021-11-18 Glatfelter Gernsbach Gmbh Non-tissé contenant un agent désinfectant et son procédé de production

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US20050245151A1 (en) 2005-11-03
AU2003256283A1 (en) 2004-01-06
EP1540079A1 (fr) 2005-06-15

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