[go: up one dir, main page]

WO2024105544A1 - Article de nettoyage - Google Patents

Article de nettoyage Download PDF

Info

Publication number
WO2024105544A1
WO2024105544A1 PCT/IB2023/061456 IB2023061456W WO2024105544A1 WO 2024105544 A1 WO2024105544 A1 WO 2024105544A1 IB 2023061456 W IB2023061456 W IB 2023061456W WO 2024105544 A1 WO2024105544 A1 WO 2024105544A1
Authority
WO
WIPO (PCT)
Prior art keywords
woven web
fibers
web
cleaning article
woven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2023/061456
Other languages
English (en)
Inventor
Scott J. Tuman
Aditya BANERJI
Myhanh T. Truong
Jeffrey E. ZELINSKY
Timothy J. Anderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to EP23890977.4A priority Critical patent/EP4618822A1/fr
Priority to JP2025528736A priority patent/JP2025537321A/ja
Priority to CN202380079451.6A priority patent/CN120265194A/zh
Priority to KR1020257018742A priority patent/KR20250109712A/ko
Publication of WO2024105544A1 publication Critical patent/WO2024105544A1/fr
Priority to MX2025005692A priority patent/MX2025005692A/es
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16—Cloths; Pads; Sponges
    • 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

Definitions

  • cleaning articles and particularly cleaning articles useful in consumer scouring applications, along with assemblies and methods thereof.
  • Scouring pads are widely used to clean surfaces such as household surfaces, including those in the home as well as vehicular surfaces.
  • the scouring pad is generally used with water and a soap or detergent, with a scouring surface of the scouring pad being used to clean a surface.
  • Such surfaces include dishes, utensils, glasses, pots, pans, grills, walls, floors, countertops, and vehicular surfaces and windows.
  • Scouring materials are produced in many forms, including non-woven webs (for example, the low density non-woven abrasive webs described in U.S. Patent No. 2,958,593 (Hoover et al.)).
  • a web of scouring material may be cut into individual pieces of a size suitable for hand use (for example, the individual rectangular pads described in U.S. Patent No. 2,958,593 (Hoover et al.)) or it may be left to the end user to divide the web into pieces of a convenient size when required (as described, for example, in WO 00/006341 (Mateos et al.) and U.S. Patent No. 5,712,210 (Windisch et al.)).
  • non-scratch scouring pads are sold under the trade designation SCOTCH-BRITE by 3M Company of Saint Paul, Minnesota.
  • a particular non-scratch scouring pad is the SCOTCH-BRITE Dobie Cleaning Pad by 3M Company of Saint Paul, Minnesota, composed of polyurethane foam pad and enclosed in a netting or mesh.
  • non-woven fibers in a construction that has physical characteristics and aesthetics closely resembling conventional foam (i.e., polyurethane) sponges but with significant sustainability advantages.
  • fibrous non-woven webs that are at least partially densified to provide a cleaning article suitable in scrubbing applications without need to be enclosed in a separate netting or mesh.
  • These densified non-woven webs can be made from sustainable or recycled polymers and can overcome technical shortcomings with conventional cleaning articles relating to durability, scouring performance, compression resistance while maintaining adequate flexibility, and hydrophilicity.
  • a cleaning article comprises: a fibrous non-woven web having fibers substantially oriented at an angle of from 45 degrees to 90 degrees relative to a major surface along an interior portion of the fibrous non-woven web, wherein an outer surface of the fibrous non-woven web comprises a densified layer extending across the fibrous non-woven web, the densified layer comprising a coating received in interstices of the fibrous non-woven web, a region of thermally-induced compression, or combination thereof.
  • a cleaning article comprising: a fibrous non-woven web comprising a vertically lapped non-woven web, wherein an outer surface of the cleaning article comprises a densified layer extending across the fibrous non-woven web, the densified layer comprising either a coating received in interstices of the fibrous nonwoven web, a region of thermally-induced compression, or combination thereof, and further wherein the densified layer has a solidity of from 0.2 percent to 10 percent.
  • a method of making a cleaning article comprising: providing a fibrous non-woven web having fibers substantially oriented at an angle of from 45 degrees to 90 degrees along an interior portion of the fibrous non-woven web; and densifying the fibrous non-woven web to obtain a densified layer characterized by a density that is from 10 percent to 1000 percent of its original, undensified solidity, wherein an outer surface of the fibrous non-woven web comprises the densified layer.
  • a cleaning assembly comprising the cleaning article and a substrate having an attachment surface releasably coupled to the cleaning article.
  • FIGS. 1 and 2 are cross-sectional views of precursor materials useful in making the cleaning articles described herein;
  • FIGS. 3-5 are a side elevational views of a cleaning articles according to various exemplary embodiments;
  • FIG. 6 is a schematic showing an exemplary method of making a cleaning article
  • FIG. 7 is a cross-sectional optical micrograph showing a densified non-woven web useful in making a cleaning article
  • FIGS. 8A-D are photographs showing, in plan view, cleaning articles according to four various embodiments.
  • FIGS. 9A-D are photographs showing durability test results on cleaning articles as reported in the Examples.
  • FIGS. 10 and 11 are perspective views of a cleaning assembly in which a cleaning article is releasably coupled to a functional substrate.
  • ambient temperature means at 21 degrees Centigrade
  • Density where applied to a non-woven web, refers to Sponge Density as determined according to the test method in the Examples.
  • substantially means at least 50 percent, at least 55 percent, at least 60 percent, at least 65 percent, at least 70 percent, at least 75 percent, at least 80 percent, at least 85 percent, at least 90 percent, at least 95 percent, at least 97 percent, or 100 percent.
  • the terms “preferred” and “preferably” refer to embodiments described herein that can afford certain benefits, under certain circumstances. However, other embodiments may also be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful and is not intended to exclude other embodiments from the scope of the invention.
  • FIGS. 1 and 2 show cross-sectional views of non-woven webs used as precursor materials in making cleaning articles, the non-woven webs herein designated by the numerals 50 and 60, respectively. These figures are exemplary, and illustrate the differing internal fiber structures of these webs, with the non-woven web 50 made using an air-laid process and the non-woven web 60 made using a vertical lapping process.
  • Each of the non-woven webs 50, 60 can be made from a blend of structural and bonding fibers, each of which can be staple fibers.
  • Structural staple fibers are usually single component in nature. Those useful in the provided articles include, but are not limited to, polyethylene terephthalate (PET), polyamide, wool, polyvinyl chloride and polyolefin, e.g., polypropylene.
  • PET polyethylene terephthalate
  • structural fibers to be made from virgin sources or sustainable sources such as biodegradable, bio-based recyclable, compostable, or made of recycled material. Examples of sustainable materials include natural fibers, naturally derived fibers, recycled synthetic fibers, or biodegradable synthetic fibers.
  • Examples of natural fibers include: bamboo, sisal, agave, coconut, flax, hemp and cotton.
  • Examples of naturally derived fibers include: rayon, rayon from bamboo, polylactide (PLA).
  • Examples of recycled synthetic fibers include: recycled PET, recycled nylon, recycled polyolefins.
  • biodegradable synthetic fibers include: viscose and melt processable fibers such as polylactic acid (PLA), polybutylene succinate (PBS), polyglycolic acid, polyester amide, dimer acid polyamide, polyhydroxyalkanoate (PHA), Poly hydroxy butyrate (PHB), a blend of PLA/PBS, a blend of PLA/Dimer acid polyamide, a blend of PBS/dimer acid polyamide, a blend of PHA/PHB, a blend of PHA/PLA and a blend of PHA/PBS.
  • PLA polylactic acid
  • PBS polybutylene succinate
  • PBS polyglycolic acid
  • polyester amide dimer acid polyamide
  • PHA polyhydroxyalkanoate
  • PHB Poly hydroxy butyrate
  • PLA/PBS a blend of PLA/Dimer acid polyamide
  • PBS/dimer acid polyamide a blend of PBS/dimer acid polyamide
  • PHA/PHB a blend of PHA/PL
  • the structural fibers are crimped fibers, preferably having 1 to 10 crimps/centimeter, and more preferably having 1 to 5 crimps/centimeter. In some embodiments, the structural fibers may have at least 1, 1.5, or even 2 crimps/centimeter. In some embodiments, the structural fibers may have up to 10, 5, or even 2 crimps/centimeter.
  • the length of the structural fibers suitable for use in the non-woven webs of the provided articles need not be particularly restricted, and can be from 15 millimeters to 150 millimeters, from 20 millimeters to 75 millimeters, from 25 millimeters to 50 millimeters, or in some embodiments, less than, equal to or greater than 15, 20, 25, 30, 35, 40, 45, 50, 60, 75, 80, 100, 125, or 150 millimeters.
  • the diameter of the structural fibers can vary over a broad range, and such variations can significantly alter physical properties of the stabilized non-woven web. Generally, finer denier fibers decrease the compressive strength of the non-woven web, while larger denier fibers increase the compressive strength of the non-woven web.
  • Useful fiber deniers for the structural fibers can range from 1 to 100 denier, from 1 to 50 denier, or from 1 to 15 denier, with blends or mixtures of fiber deniers often times being employed to obtain desired mechanical properties for the non-woven web.
  • the structural fibers may have at least 1, 3, 6, 15, 50, 60, or even 100 denier. In some embodiments, the structural fibers may have up to 100, 60, 50, 15, 6, 3, or even 1 denier. Small quantities of microfibers, e.g., less than 20 weight percent, preferably melt blown microfibers in the range of from 2 to 10 micrometers, may also be incorporated into the non-woven webs of the provided articles.
  • a variety of bonding fibers are suitable for use in stabilizing the non-woven webs of the provided articles, including amorphous, meltable fibers, adhesive coated fibers which may be discontinuously coated, and bicomponent bonding fibers which have an adhesive component and a support component arranged in a coextensive side-by-side, concentric sheath-core, or elliptical sheath-core configuration along the length of the fiber with the adhesive component forming at least a portion of the outer surface of the bicomponent fiber.
  • the adhesive component of the bondable fibers may be bonded, for example, thermally, by solvent bonding, solvent vapor bonding, and salt bonding.
  • the adhesive component of thermally bonding fibers must be thermally activatable (i.e., meltable) at a temperature below the melt temperature of the structural staple fibers of the non-woven web.
  • a range of bonding fiber sizes can be useful in the provided articles, depending on the desired durability and handling properties.
  • the bonding fiber may have at least 1, 4, or even 15 denier. In some embodiments, the bonding fiber may have up to 15, 4, or even 1 denier. As with the structural fibers, smaller denier bonding fibers tend to decrease the compressive strength of the non-woven web, while larger denier bonding fibers increase the compressive strength.
  • the length of the bonding fiber can be from 15 millimeters to 100 millimeters, from 25 millimeters to 100 millimeters, or from 25 millimeters to 75 millimeters, although fibers as long as 150 millimeters are also useful.
  • the bonding fibers are crimped, having 1 to 10 crimps/centimeter, and more preferably having 2 to 5 crimps/centimeter.
  • adhesive powders and sprays can also be used to bond the structural fibers.
  • One particularly useful bonding fiber for stabilizing the non-woven webs of the provided articles is a crimped sheath-core bonding fiber having a core of crystalline polyethylene terephthalate surrounded by a sheath of an adhesive polymer formed from isophthalate and terephthalate esters.
  • the sheath is heat softenable at a temperature lower than the core material.
  • Certain fibers, such as available under the trade designation MELTY from Unitika Corp, of Osaka, Japan, are particularly useful in preparing the non- woven webs of the provided articles.
  • Other sheath/core adhesive fibers may be used to improve the properties of the non-woven webs of the provided articles. Representative examples include fibers having a higher modulus core to improve resilience of the nonwoven web or fibers having sheaths with better solvent tolerance to improve dry cleanability of the non-woven webs.
  • the non-woven webs preferably contain from 0 to 90 weight percent structural fiber and 10 to 100 weight percent bonding fiber, more preferably from 60 to 90 weight percent structural fiber and 10 to 40 weight percent bonding fiber.
  • the non-woven webs may contain at least 0, 20, 40, 50, 60, 70, 80, or even 90 weight percent structural fiber.
  • the non-woven webs may contain up to 90, 80, 70, 60, 50, 40, 20, or even 0 weight percent structural fiber.
  • the non-woven webs may contain at least 10, 20, 40, 50, 60, 70, 80, 90, or even 100 weight percent bonding fiber.
  • the non-woven webs may contain up to 100, 90, 80, 70, 60, 50, 40, 20, or even 10 weight percent bonding fiber.
  • the non-woven webs of the provided articles can be formed from air-laid webs formed from blends of structural staple fibers and bonding staple fibers. These webs, which can be produced on equipment, such as air-laying equipment, available from Rando Machine Corp., Rand, NY, have a shingled structure which is inherent to the process.
  • FIG. 1 shows a representative cross-section of an air-laid web formed on RANDO WEBBER air-laying equipment.
  • the fibers are laid down in shingles which normally are inclined at an angle of between 10 degrees to 40 degrees, relative to the major surfaces of the web.
  • Some of the most important factors influencing the angle of the shingle include the length of the fiber used to form the web, the type of collector used in the machine, and the basis weight of the web.
  • a web having a lower basis weight generally has a lower shingle angle than a similar web at a higher basis weight.
  • the collector is generally an inclined wire or a perforated metal cylinder, the cylinder being preferred. Smaller diameter cylinders produce webs having a larger shingle angle than large diameter cylinders produce.
  • the length of the web contact zone on the collector i.e., the distance in which the web is in contact with the collector cylinder also affects the shingle angle with a longer distance creating a lower shingle angle.
  • the shingled structure of the web can be used to advantage in creating a web structure that has superior thermal weight efficiency to down and that also has the resiliency of down.
  • the web can adopt a substantially columnar structure which is capable of enduring compressive challenges and providing lower bulk densities than those associated with the starting web.
  • the reconfigured web structure capitalizes on the natural resilience of the fibers by orienting them substantially lengthwise to the compressive forces exerted on the web.
  • the non-woven webs of the provided articles can also be formed from vertically lapped webs formed from blends of structural staple fibers and bonding staple fibers.
  • the blend of structural and binder fibers is first converted into a non-woven web using standard fiber blending and fiber carding equipment known in the art to form a non-woven web.
  • a vertical lapping machine converts the pre-formed nonwoven web into the non-woven mat where the input web is folded the web back and forth onto itself in a vertical manner, resulting in a non-woven mat with a vertically lapped structure that is highly oriented in the z-direction.
  • FIG. 2 shows a representative crosssection of vertically lapped web formed on vertical lapping machine.
  • Such a vertically lapped non-woven mat may be constructed with the use of a machine disclosed in International Publication No. WO 99/61693, and entitled "A DEVICE FOR PERPENDICULAR STRATIFICATION OF PLANARY FIBROUS SHAPES," which is hereby incorporated by reference, the V-Lap Vertical Lapping System manufactured by V- Lap PTY Ltd, Australia and as described for example in W02006/092029, which is hereby incorporated by reference, and STRUTO materials as manufactured using the Struto system (Struto International Inc.) as described in Chapter 2. 12 in Russell S. J.: Handbook of Nonwovens, Woodhead Publishing Limited, Cambridge, England, 2007, which is hereby incorporated by reference.
  • the fiber orientation angles within the vertically lapped non-woven mats are at least above 60 degrees, preferably at least 75 degrees; and most preferably approaching 90 degrees, relative to the major surfaces of the web, as shown in FIG. 2.
  • the fibrous non-woven web has fibers substantially oriented at an angle of from 45 degrees to 90 degrees, from 60 degree to 90 degrees, or from 80 degrees to 90 degrees, relative to a major surface along an interior portion of the non-woven web 50.
  • substantially oriented means that a substantial fraction (or percentage) of the visible fibers have the specified orientation or range thereof when the non-woven web is viewed in cross-section.
  • An “interior portion” of the nonwoven web can be an internal layer representing, for example, the middle 25 percent, middle 50 percent, or middle 75 percent of the non-woven web as defined along its thickness dimension.
  • the substantial orientation of a non-woven web is estimated using a Fiber Verticality Test described herein.
  • a 10.2 cm x 15.3 cm (4 in x 6 in) sample is cut with the long dimension parallel to the machine direction of the web.
  • a photograph is taken of the cross section of the machine direction.
  • the Select Angle Tool in ImageJ software is used to identify 2 vectors along the 15.3 cm side of the sample.
  • the 1 st line is drawn along the flat base parallel to the length of the sample and the 2 nd line is drawn approximately parallel to the middle third of a representative web fiber.
  • Fiber verticality is reported as the angle between the two lines.
  • the line measurements are repeated to have the angles of at least 10 different fibers measured. The substantial orientation of the fibers is calculated based on the measured angles.
  • FIG. 3 shows a cleaning article 100 according to an exemplary embodiment.
  • the article 100 is comprised of the non-woven web 50 having opposed first and second major surfaces 102, 104, where the non-woven web 50 has been subjected to a densification process.
  • the non-woven web 50 includes a densified layer 106 and an undensified layer 108. These layers are co-extensive and bounded along the outer surface of the non-woven web 50 by the first major surface 102 and second major surface 104, respectively.
  • the densified layer 106 and undensified layer 108 are integral parts of the non-woven web 50, with the former having a density greater than that of the latter.
  • Densification of the non-woven web 50 can take place by disposing a coating onto the non-woven web 50, such that the coating is received in interstices of the fibrous nonwoven web 50. Densification can also be achieved by applying heat and pressure simultaneously to the non-woven web 50 to create a region of thermally-induced compression. In a preferred embodiment, both methods above are used to afford a nonwoven web 50 that both includes regions of thermally-induced compression and also has a coating received within its interstices.
  • Coatings to be applied to the non-woven web 50 can be provided by applying a coating composition to the non-woven web 50 that is subsequently hardened to provide a densified layer 106.
  • the coating composition is a curable coating composition prepared from a reactive mixture of a curable binder resin and, optionally, abrasive particles.
  • the abrasive particles can be organic abrasive particles.
  • the thickness of the coated non-woven web may be at least 0.5, 1, or even 1.5 cm. In some embodiments, the thickness of the coated non-woven web may be up to 10, 5, or even 4 cm.
  • the basis weight of the coated non-woven web may be at least 100, 200, 300, 400, 500, or even 600 grams per meter squared (gsm). In some embodiments, the basis weight of the coated non-woven web may be up to 3000, 2500, 2000, 1500, 1000, or even 600 gsm. The basis weight may be impacted by how much coating is applied.
  • the curable binder resin is used to bind the abrasive particles to the non-woven web 50.
  • the curable binder is delivered in the form of a curable binder precursor capable of flowing sufficiently so as to be able to coat the surfaces of the nonwoven web 50.
  • Solidification of the binder precursor may be achieved by curing (e.g., polymerization and/or crosslinking), by drying (e.g., driving off a liquid), and/or by cooling.
  • the binder precursor may be an organic solvent borne, a water-borne, or a 100 percent solids (i.e., substantially solvent free) composition. Both thermoplastic and/or thermosetting polymers, or materials, as well as combinations thereof, may be used as binder precursors.
  • the curable coating is converted into a cured coating.
  • the binder precursor is either a condensation curable resin or an addition polymerizable resin.
  • the binder precursor is a curable organic material.
  • An example of a suitable binder resin is a thermally curable resin.
  • thermally curable resins include, but are not limited to: phenolic resins, urea formaldehyde resins, urethane resins, melamine resins, epoxy resins, bismaleimide binders, vinyl ether resins, aminoplast resins having pendant alpha, beta unsaturated carbonyl groups, acrylate resins, acrylated isocyanurate resins, isocyanurate resins, acrylated urethane resins, acrylated epoxy resins, alkyd resins, and mixtures thereof.
  • the addition polymerizable resins can be ethylenically unsaturated monomers and/or oligomers.
  • Other binders that can be used to adhere the coating, optionally containing abrasive particles, to the non-woven web 50 include, but are not limited to, hide glue, varnish, polyurethane resins, and radiation cured crosslinked acrylate binders.
  • the coating composition includes between 10 weight percent and 90 weight percent resin binder and between 90 weight percent and 10 weight percent organic abrasive particles; particularly between 15 weight percent and 80 weight percent resin binder and between 20 weight percent and 85 weight percent organic abrasive particles; and more particularly between 20 weight percent and 65 weight percent resin binder and between 35 weight percent and 80 weight percent organic abrasive particles.
  • the binder resin may also include one or more mild abrasives.
  • suitable mild abrasives include, but are not limited to talc, calcium carbonate, melamine formaldehyde, calcium silicate, pumice, kaolins, and clay.
  • the mild abrasive is generally employed in an amount up to 50 percent of the dry weight of the binder resin, up to 30 percent of the dry weight of the binder resin, or up to 15 percent of the dry weight of the binder resin.
  • the binder resin formulations can also include a toughening agent.
  • the toughening agent is a polymer latex selected from, for example: vinyl acetate, vinyl chloride, ethylene, styrene butyl acrylate and vinyl ester of versatic acid, polymers, and copolymers.
  • the glass transition temperature of the polymers used as toughening agents is typically in the range of 0 degrees to 50 degrees Centigrade.
  • binder resin for special purposes, including, but not limited to: grinding aids, fibers, lubricants, wetting agents, surfactants, pigments, dyes, coupling agents, plasticizers, antistatic agents, antimicrobial agents, and suspending agents.
  • antistatic agents include, but are not limited to, graphite, carbon black, conductive polymers, humectants, and vanadium oxide.
  • the optional organic abrasive particles can be formed from a resin binder.
  • the curable resin binder precursor functions to give bulk material properties to the resulting organic abrasive as well as functions to bind mild abrasives particles, when present, into the organic abrasive to form the organic abrasive particles.
  • the binder can derive from a binder precursor that has been cured.
  • Abrasive agglomerate particles can include abrasive grains that are identical or are different in size.
  • the organic abrasive particles can have any geometry or size and may be precise or irregular and random.
  • the organic abrasive particles can also be precision-shaped grains, such as those described in International Patent Publication No. WO 2019/215571 (Mevissen, et al.).
  • precisely shaped grains may be any three-dimensional shape such as, but not limited to: a pyramid, cone, block, cube, sphere, cylinder, rod, triangle, hexagon, square, and the like.
  • any combination of shapes of abrasive particles may be used in the provided cleaning articles.
  • the organic abrasive particles are precision shaped grains that are triangular in shape, having a length of between 100 and 800 micrometers, a width of between 100 and 800 micrometers, and a depth of between 50 and 500 micrometers.
  • crosslinkers enable crosslinking of binder precursors.
  • Plasticizers are curable binder precursor that can be added to the resin binder system to promote plasticity and reduce brittleness.
  • Mild abrasives can be added to contribute to the flexural modulus of the cured binder system and can also function as a mild abrasive agent.
  • Acid catalysts have the ability to catalyze the reaction of a binder precursor.
  • Surfactants can be used to modify the surface tension of the formulation or function as a cleaning agent.
  • Antimicrobial agents can lend antimicrobial efficacy to the cleaning article.
  • the organic abrasive particles include between 35 to 100 weight percent resin binder, up to 15 weight percent crosslinker, up to 65 weight percent plasticizer, up to 65 weight percent mild-abrasive, up to 10 weight percent acid catalyst, and up to 10 weight percent surfactant.
  • the organic abrasive particles may include between 45 weight percent and 90 weight percent resin binder, up to 10 weight percent crosslinker, between 5 weight percent and 30 weight percent plasticizer, between 5 weight percent and 45 weight percent of a mild abrasive, up to 8 weight percent acid catalyst, and up to 8 weight percent surfactant.
  • the organic abrasive particles may include between 65 weight percent and 85 weight percent resin binder, up to 8 weight percent crosslinker, between 5 weight percent and 20 weight percent plasticizer, between 10 weight percent and 30 weight percent of a mild abrasive, up to 5 weight percent acid catalyst, and up to 5 weight percent surfactant.
  • the organic abrasive particles are made by sequentially adding the components in a mixer and mixing. The components are then cured and crushed to the desired size. In one embodiment, the organic abrasive particles are crushed to a size ranging from 50 to 500 micrometers, and particularly from 100 to 500 micrometers.
  • Precisely shaped particles can be generally made by following the process as described in International Patent Publication No. WO 2019/215571 (Mevissen, et al.). Generally, the precisely shaped particles are made by forming a mixture containing at least a binder precursor.
  • the binder resin may also include a mild abrasive, toughening agents, and other materials added to the binder resin for special purposes, including, but not limited to: grinding aids, fibers, lubricants, wetting agents, surfactants, pigments, dyes, coupling agents, plasticizers, antistatic agents, antimicrobial agents, and suspending agents.
  • the mixture is coated into precisely shaped cavities of a production tool, at least partially curing the binder precursor, and then removing the precisely shaped particles from the cavities of the production tool.
  • the mixture can be formed using any conventional technique such as high shear mixing, air stirring, or tumbling.
  • a vacuum can also be used during mixing so as to minimize air entrapment.
  • the mixture may be introduced into the cavities of the production tool using techniques such as gravity feeding, pumping, die coating, or vacuum drop die coating.
  • the organic abrasive articles must be hard enough to sufficiently clean a surface while minimizing any scratching of the surface.
  • One measurement of hardness is through the Mohs’ scale of mineral hardness.
  • the Mohs’ scale of hardness characterizes the scratch resistance of a mineral through the ability of a harder material to scratch a softer material.
  • the organic abrasive particles used in suitable coating compositions have a Mohs hardness of between 2.0 and 5.0, particularly between 2.0 and 4.0, and more particularly between 2.5 and 3.5.
  • Viscosity modifiers can be used to modify the viscosity of the formulation.
  • Antifoaming agents can be used to defoam the formulation.
  • Pigments can be added to give color to formulation.
  • Antimicrobial agents can lend antimicrobial efficacy to an article and antifungal agents can lend antifungal efficacy to an article.
  • the coating composition may include between 5 weight percent and 90 weight percent resin binder, between 90 weight percent and 10 weight percent organic abrasive particles, up to 10 weight percent viscosity modifier, up to 10 weight percent surfactant, up to 50 weight percent plasticizer, up to 20 weight percent crosslinker, up to 5 weight percent antifoaming agent, up to 50 weight percent mild abrasive, and up to 15 weight percent pigment.
  • the coating composition may include between 15 weight percent and 80 weight percent resin binder, between 20 weight percent and 85 weight percent organic abrasive particles, up to 5 weight percent viscosity modifier, up to 5 weight percent surfactant, up to 30 weight percent plasticizer, up to 10 weight percent crosslinker, up to 3 weight percent antifoaming agent, up to 25 weight percent mild abrasive, and up to 10 weight percent pigment.
  • the coating composition may include between 20 weight percent and 65 weight percent resin binder, between 35 weight percent and 80 weight percent organic abrasive particles, up to 2 weight percent viscosity modifier, up to 3 weight percent surfactant, up to 6 weight percent plasticizer, up to 6 weight percent crosslinker, up to 1 weight percent antifoaming agent, up to 15 weight percent mild abrasive, and up to 5 weight percent pigment.
  • the organic abrasive particles When used in a coating composition, the organic abrasive particles are incorporated into non-woven lofty open mats formed from randomly disposed fibers which are thermal bonded with a binder slurry to be used as cleaning articles, such as scouring pads.
  • the organic abrasive articles can be incorporated into the non-woven web 50 by disposing the coating composition including the organic abrasive particles onto the non-woven web 50 or by disposing a printed abrasive coating including the organic abrasive particles onto the non-woven web 50.
  • the non-woven web 50 is first impregnated with a binder resin.
  • the non-woven web 50 can be impregnated with the binder resin by any known method.
  • the binder resin is roll-coated onto the non-woven web 50 such that the binder resin is received in the interstices of the non-woven web 50.
  • the binder resin can also be spray coated onto a major surface of the nonwoven web such that the binder resin is received in the interstices of the non-woven web 50.
  • the coated non-woven web 50 is then dried and the binder resin is cured.
  • the resulting pre-bonded non-woven web can then be spray coated on at least one major surface with a binder solution containing the organic abrasive crushed particles to provide a scrubbing layer.
  • the coated non-woven web 50 is then dried and the binder is cured, forming a strong abrasive coating on the non-woven web 50.
  • the binder resin When roll-coating, the binder resin may be pushed into the non-woven web 50, for example, using a pressurized nip. The extent of penetration may be selected based on nip pressure, web openness, and resin viscosity. A binder resin that is roll-coated onto the nonwoven web 50 may penetrate at least 50%, 60%, 70%, 80%, 90%, or even 100% of the thickness of the non-woven web 50.
  • the binder resin When spray coating, the binder resin may be atomized and deposited on a surface of the non-woven web 50.
  • the extent of penetration may be selected based on air pressure, web openness, and resin viscosity.
  • a binder resin that is spray coated may penetrate up to 5%, 10%, 15%, 20%, or even 25% of the thickness of the non-woven web 50.
  • Either or both major surfaces of the non-woven web 50 can be coated with the scrubbing layer.
  • Spray coating can be used to impart both enhanced durability of the nonwoven web 50 as well as provide added functionality, such as scrubbing efficacy.
  • a significant technical benefit of providing a discrete scrubbing layer in situ is that a separate adhesive is not needed. Further, this method eliminates the need to cast and laminate a separate scrubbing layer to the non-woven web. Elimination of unnecessary steps and materials can save significant manufacturing costs.
  • a separate scrubbing layer can be laminated to one or both major surfaces of the non-woven web 50 to provide a multilayer cleaning article. Lamination can be achieved by heat sealing or use of a suitable adhesive to bond the scrubbing layer and non-woven web 50 to each other.
  • the additional layer(s) can be used to provide a specialized scrubbing surface and/or enhance further the overall durability of the cleaning article.
  • the aforementioned scrubbing layer need not be particularly limited and can be made from a woven, knitted, non-woven or foam material. Woven, knitted, or non-woven materials can be made from natural, synthetic, or a combination of natural and synthetic fibers. In some embodiments, the wiping material is hydrophilic such that it is capable of holding and retaining water.
  • the scrubbing layer comprises a non-woven web and has a plurality of abrasive particles adhered to the surfaces of the fibers therein.
  • the abrasive particles are incorporated by frothing a liquid make coat precursor, applying the frothed make coat precursor to the fibers of the web, spraying a plurality of fine abrasive particles onto the first side of the web, and then curing the make coat precursor to adhere the abrasive particles to the web.
  • an abrasive slurry could be directly disposed and hardened on the substrate.
  • the abrasive coating can include a binder and any combination of organic and inorganic abrasive particles. Some abrasive particles can have a Mohs’ hardness of 7 or greater dispersed in the binder, while other abrasive particles can have a Mohs’ hardness in the range of 1 to 5 dispersed in the binder. In some embodiments, the former abrasive particles have a median particle size in the range of 20 to 100 micrometers and the latter abrasive particles have a median particle size in the range of greater than 100 micrometers.
  • the densified layer 106 preferably has a solidity sufficient to provide the required web strength to withstand repeated soaking in water and hand scrubbing, while also providing acceptable compressibility, flexibility, and other handling properties.
  • the solidity can be from 0.05 percent to 20 percent, from 0.1 percent to 15 percent, from 0.2 percent to 10 percent, or in some embodiments, less than, equal to, or greater than 0.05 percent, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 percent.
  • the undensified layer can have a solidity of from 0.05 percent to 20 percent, from 0.1 percent to 15 percent, from 0.2 percent to 10 percent, or in some embodiments, less than, equal to, or greater than 0.05 percent, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 percent.
  • Changes in solidity can also be characterized by a corresponding change in web density.
  • the density of the densified layer 106 can be increased by 10 percent to 1000 percent, from 20 percent to 700 percent, from 30 percent to 500 percent, or in some embodiments, less than, equal to, or greater than 10 percent, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800, 850, 900, 950 or 1000 percent that of the undensified layer 108 (i.e., the density of the non-woven web precursor).
  • the densified layer 106 has a depth that extends approximately halfway through the overall thickness of the non-woven web 50.
  • the relative thicknesses of the densified and undensified layers 106, 108 need not be restricted, however.
  • the densified layer can extend to a depth of from 1 percent to 100 percent, from 50 percent to 100 percent, from 75 percent to 100 percent, or in some embodiments, less than, equal to, or greater than 1 percent, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 96, 97, 98, 99, or 100 percent, relative to the overall thickness of the non-woven web 50.
  • the densified layer 106 extends through the entire thickness of the non-woven web 50.
  • the presence of the densified layer 106 can substantially enhance the durability of the non-woven web 50 when the article 100 is used in consumer scrubbing applications.
  • conventional scrubbing pads made from non-woven webs are saturated with soapy water and used to vigorously scrub a surface, the fibers of the web have a tendency to decouple from each other, disentangle, and eventually disintegrate.
  • the densified layer 106 allows the non-woven web 50 to be used directly as a scrubbing pad for kitchen and automotive cleaning without need for encasement in a protective netting or mesh.
  • the outer surface of the article 100 can be the same as the outer surface of the non-woven web 50, in part or in totality. While not required, it is also possible for the provided cleaning articles to be wrapped in such an encasement if so desired.
  • FIG. 4 shows a cleaning article 200 that, like article 100, is derived from the nonwoven web 50.
  • the article 200 differs from the previous article 100 in that the entire thickness of the non-woven web 50 is densified, such that the densified layer 206 represents the entirety of the article 200.
  • This embodiment can provide the greatest degree of durability enhancement to the article 200 overall, while further enabling either the first or second major surface 202, 204 to be used as an effective and durable scrubbing surface.
  • FIG. 7 shows the cross-section of an actual non-woven web that has been densified by compression under heat and pressure as previously described.
  • FIG. 5 shows a cleaning article 300 bearing similarities to the article 200 but having a densified layer 306 that is shaped such that its first major surface 302 extends along a three-dimensional topological pattern, while its second major surface 304 remains planar.
  • the densified layer 306 can be shaped in such a manner that both the first and second major surfaces 302, 304 have a three-dimensional topological pattern.
  • the topological pattern which are exemplified in the Examples and FIGS. 8A-D, can be a replicated cellular pattern of convex and concave regions.
  • Such a pattern can be represented by a grid pattern (such as the rectangular grid pattern of FIG. 8B) or a staggered pattern (such as the quilted pattern of FIG. 8C).
  • Other patterns are also possible, including features that are discontinuous and/or randomly distributed.
  • the replicated cellular features of the topological pattern can have a periodicity of from 2 millimeters to 100 millimeters, from 5 millimeters to 40 millimeters, from 10 millimeters to 25 millimeters, or in some embodiments, less than, equal to, or greater than 2 millimeters, 3, 4, 5, 7, 10, 12, 15, 17, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, or 100 millimeters.
  • the topological pattern of the first major surface 302 allows for the surface roughness of the article 100 to be manifested on two very different size scales — the spacing of the fibers within the non-woven web 50, and the periodicity of the of the topological pattern. Since debris such as food or dirt on a surface to be cleaned can be present in very different size scales, a scrubbing pad having roughness on both a fine and coarse size scale can be more effective in removing such debris than the same pad having roughness on only a fine size scale.
  • FIG. 6 depicts an exemplary method for making the article 300.
  • a non-woven web 350 is manufactured using an air-laying or vertically lapping machine 360 and then conveyed on endless belts 362 through a heated oven 364, where a series of patterned roll tools emboss a topological pattern into the non-woven web 350 within the heated oven 364.
  • these tools can be geared and have the same alignment to ensure they are pressing in the same locations on the non-woven web 350 as it passes.
  • a suitable combination of heat and pressure where the non-woven web 350 compressed at a temperature above the softening temperature of one or more of its polymeric components, a permanent topological pattern can be imprinted on the web 350.
  • the web 350 is taken up on a wind roll 368, where it is temporarily stored for later processing, converting, and packaging steps as appropriate.
  • the non-woven web can be manufactured using a lapping machine as described above, trimmed into discrete pieces, and then a topology plate made from copper or other metal can be heated to a suitable temperature and then pressed down onto each of the discrete pieces to emboss the pattern. As above, these discrete pieces can then be further converted into smaller sizes for consumer use and undergo any further processing steps needed to obtain a finished product.
  • FIGS. 10 and 11 depict a cleaning assembly 470.
  • the assembly 470 includes a cleaning article 400 having properties described herein and a substrate 474 releasably coupled to the cleaning article 400 along attachment surface 472.
  • the substrate is functional and includes a handle that facilitates use of the cleaning article in scrubbing a surface.
  • FIG. 10 illustrates the assembly 470 in its assembled configuration
  • FIG. 11 shows the assembly 470 with the cleaning article 400 partially detached from the attachment surface 472 to reveal an exemplary mode of engagement between these components.
  • the cleaning article 400 and substrate 474 are releasably attached to one another along the attachment surface 472.
  • the attachment surface 472 is preferably integral to the substrate 474, but could also be a separate layer permanently bonded to either the article 400 or substrate 474.
  • the attachment surface 472 is part of a separately fabricated shoe or other component that is either permanently or releasably coupled to the handle.
  • the attachment surface 472 includes multiplicity of tiny hooks capable of engaging the non-woven fibers in the article 400 to provide a releasable bond.
  • This “hook-and-loop” type engagement between these structures is capable of holding these bodies together while scrubbing a surface, while allowing for subsequent detachment of the article 400 from the attachment surface 472 for easy disposal, without the need to disengage/de-latch any components from the substrate 474.
  • the fiber loops present near the major surfaces of vertically lapped or air-laid non-woven webs can provide especially effective engagement with suitably sized hook structures.
  • hook structures in a “hook and loop” engagement mechanism are known in the art. Such hook structures can have any of a variety of sizes and shapes, depending on the characteristics of the fibrous non-woven web such as fiber size and solidity. Examples are described in U.S. Patent Publication No. 2001/0016245 (Tuman et al.) and 2003/0009144 (Tanzer et al.) and U.S. Patent Nos. 5,392,498 (Goulait et al.) and 7,014,906 (Tuman et al.)
  • hooks can affect how deeply the hooks penetrate into the non-woven area and engage the loops. Hooks that are too densely packed can interfere with hook and loop engagement, while hooks spaced too far from each other result in fewer hooks engaging. Hooks can also be oriented in a manner that enhances engagement with loops in the nonwoven fibrous web. When the article 400 is pulled away from the hooks, the force required tends to be stronger in the direction parallel to the hooks and weaker in the direction normal to the hooks. In some embodiments, two or more different hook orientations on the attachment surface 472 are used to increase overall pull force along multiple directions. For example, hooks angled along both the lengthwise and transverse directions relative can be preferred over hooks being angled only along the lengthwise direction.
  • the attachment surface 472 can engage with either the densified layer of the article 400 or, alternatively, an undensified layer thereof.
  • the nature of the hook-and-loop engagement between the article 400 and the substrate 474 along densified regions can be significantly different from that along undensified regions.
  • initial retention force was found to be somewhat higher along undensified regions, this retention force tended to decrease quickly with repeated engagement/disengagement cycles.
  • initial retention force was often slightly lower, but high retention force can be well preserved despite repeated hook engagements/disengagements.
  • the densification appears to produce a fiber structure that resists perturbations associated with insertion and removal of the hooks from the attachment structure.
  • a tray was filled with water. Samples were dropped into the tray of water and the time it took for the samples to immerse in water was recorded. No additional force was applied.
  • a 10.2 cm x 15.3 cm (4 in x 6 in) sample was clamped onto a flat test platform by means of a wood perimeter block, with an exposed area of sample surface measuring 8.9 cm x 10.2 cm (3.5 in x 4 in).
  • a test head composed of a 5.08 cm x 5.08 cm (2 in x 2 in) square of a hook material was placed in the center of the sample surface and a 2.25 kg (5 lb) weight was placed on the test head for a duration of 3 seconds to facilitate hook engagement with the web sample.
  • a tensile frame was used to measure peak disengagement force when pulling perpendicular to the web surface at 10 cm/min (3.94 in/min). Hook Loop Engagement was defined as the Maximum Load recorded during the test.
  • the length (1), width (w) and thickness (t) of the samples was measured using a Comparator Gauge.
  • the volume (m 3 ) of the sample was calculated.
  • the sample was then weighed to obtain the material dry weight (g) to the nearest 0.001. Density was calculated by dividing dry weight (g) by volume (m 3 ).
  • a 5.08 cm x 5.08 cm (2 in x 2 in) sample was secured into a tensile frame and compressed at a rate of 10 cm/min (3.94 in/min) with a 10.2 cm x 10.2 cm (4 in x 4 in) compression foot.
  • the sample was preconditioned via two cycles of compression to 50% of the initial sample thickness.
  • the sample was then compressed to 50% of the initial sample thickness a third time and the maximum force required to compress the sample was recorded.
  • a 10.2 cm (4 in) diameter 18-gauge stainless steel panel was coated with a food soil mixture made up of 120 grams whole milk, 120 grams cream cheese, 20 grams flour, and 100 grams of granulated sugar.
  • the coated panel was baked in an oven at 230°C for 14 minutes with the final coated weight less than 0.5 grams.
  • a 6.4 cm (2.5 in) diameter sample was inserted into the holder of a Schiefer Tester and tested the coated food soil panel at 250 rpm for 75 cycles under a load of 2.25 kg with water applied to the surface of the circular coated panel at a rate of 60-80 drops per minute. After 75 cycles the weight loss of the panel was measured in the total mass (in milligrams) of food soil removed.
  • a sample was placed in a heated soapy water at approximately 65 °C with vigorous mechanical agitation for a minimum of 30 min. Durability was determined by visual observation of the material.
  • Non-woven web samples were prepared by an air-laying or vertical lapping technology.
  • the non-woven web samples (EX 1-5, EX 12-13, and CE4) are composed of fibers that are per-made, short-cut, and crimped.
  • the fibers which are obtained in tightly packed “bales” are first run through an opener where the fibers (structural and binder fibers) are blended on a percent weight basis.
  • An example of a suitable opener is a Reiter Bale Opener (Bracker, France).
  • the fibers are then individualized in a fiber opening equipment.
  • An example of a suitable fiber opening equipment is a Hergeth Hollingsworth carding machine (Aachen, Germany).
  • the fibers are then conveyed to an air-laid machine.
  • An example of a suitable air-laid machine is a Rando Webber (Macedon, NY). Optimization of the air-laid machine input parameters enables achieving shingle angles between 60° to 90° whereby the fibers in the non-woven webs are substantially oriented in the z-direction.
  • the output from the non-woven webs samples (EX 1-5, EX 12-13, and CE4) prepared by the air-laid machine range in basis weight of from about 200 gsm to about 500 gsm at thicknesses of up to about 2.5 cm prior to densification or coating (Web Basis Weight).
  • the blend of structural and binder fibers are first converted into a non-woven web using standard fiber blending and fiber carding equipment known in the art to form a non-woven web.
  • the resulting non-woven web are then fed into a vertical lapping machine that folded the web back and forth onto itself, resulting in a non-woven mat (EX6-11 and CE5) with a vertically lapped structure that is highly oriented in the z-direction.
  • a suitable vertical lapping machine is the V-Lap Vertical Lapping System (V-Lap PTY Ltd, Australia) or a Struto machine (Struto International Inc.).
  • the non-woven mats are then thermally bonded by passing the nonwoven web through a through-air oven.
  • rolls of vertically lapped webs purchased from Structured Fibers Inc. are used for additional postprocessing.
  • Such a vertically lapped material may be constructed with the use of a machine disclosed in International Publication No. WO 99/61693, and entitled "A DEVICE FOR PERPENDICULAR STRATIFICATION OF PLANARY FIBROUS SHAPES," which is hereby incorporated by reference, the V-Lap Vertical Lapping System manufactured by V-Lap PTY Ltd, Australia and as described for example in W02006/092029, which is hereby incorporated by reference, and STRUTO materials as manufactured using the Struto system (Struto International Inc.) as described in Chapter 2.12 in Russell S.
  • the non-woven webs samples prepared by the vertical lapping range in basis weight of from about 400 gsm to about 600 gsm at thicknesses of up to about 2.5 cm prior to densification or coating (Web Basis Weight).
  • Densification coatings identified in the Preparatory Examples were applied to the specific samples as identified in Table 3 by using rolling, spraying, or both methods/techniques. Roll coating occurred first if the samples were both roll and spray coated. The coatings were dried by passing the samples twice through an oven at specific temperatures and time intervals. The first pass was used to dry the roll coat and the second pass was used to dry the spray coat. For samples with only one coating, the sample was passed twice through the oven to dry. For CE4, CE5, EX2, EX3 and EX6, the first and second pass temperature was 180°C for a total time of 316 seconds. For EXI, the first and second pass temperature was 150°C for a total time of 158 seconds.
  • the first pass temperature was 177°C and the second pass temperature was 190°C for a total time of 450 seconds.
  • Thermal densification occurred by passing the sample twice through an oven at a specific temperature and time interval.
  • Sample physical properties e.g., thickness, basis weight, etc.
  • densification details are also represented in Table 3.
  • the densification pattern created for EX 10 is represented in FIG. 8B and EXI 1 is represented in FIG. 8C.
  • FIG. 8A and FIG. 8D are other patterns envisioned for the cleaning articles but were not embodied in the Examples. Table 3 : Sample Compositions
  • CE1 - CE5, EXI - EX3, and EX6 underwent Immersion testing, and the results are represented in Table 4.
  • Table 4 Immersion Test Results CE1 - CE5, EXI - EX3, and EX6 - EX8, underwent Compression testing, and the results are represented in Table 5.
  • CE4 and EX2 underwent Durability Efficacy testing, and the results are visualized in FIG 9.
  • CE4 before the test is represented in FIG. 9A and after the test is represented in FIG. 9B.
  • EX2 before the test is represented in FIG. 9C and after the test is represented in FIG. 9D.
  • EX 13 underwent Hook-and-Loop Engagement testing.
  • the Hook and Loop Engagement Force (N) for EX 13 was U N.
  • EX 13 underwent Cleaning Efficacy testing.
  • the Cleaning Efficacy (mg) For EX13 was 120 mg.
  • a cleaning article comprising: a fibrous non-woven web having fibers substantially oriented at an angle of from 45 degrees to 90 degrees relative to a major surface along an interior portion of the fibrous non-woven web, wherein an outer surface of the fibrous non-woven web comprises a densified layer extending across the fibrous non-woven web, the densified layer comprising a coating received in interstices of the fibrous non-woven web, a region of thermally-induced compression, or combination thereof.
  • a cleaning article comprising: a fibrous non-woven web comprising a vertically lapped non-woven web, wherein an outer surface of the cleaning article comprises a densified layer extending across the fibrous non-woven web, the densified layer comprising either a coating received in interstices of the fibrous non-woven web, a region of thermally-induced compression, or combination thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention concerne des articles de nettoyage qui comprennent une bande non tissée fibreuse qui peut être une bande non tissée à chevauchement vertical ou une bande non tissée ayant des fibres sensiblement orientées à un angle de 45 degrés à 90 degrés par rapport à une surface principale le long d'une partie intérieure de la bande non tissée fibreuse. Une surface externe de la bande non tissée fibreuse comprend une couche densifiée s'étendant à travers la bande non tissée fibreuse, la couche densifiée comprenant un revêtement reçu dans des interstices de la bande non tissée fibreuse, une région de compression induite thermiquement ou une combinaison associée.
PCT/IB2023/061456 2022-11-17 2023-11-13 Article de nettoyage Ceased WO2024105544A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP23890977.4A EP4618822A1 (fr) 2022-11-17 2023-11-13 Article de nettoyage
JP2025528736A JP2025537321A (ja) 2022-11-17 2023-11-13 清掃用物品
CN202380079451.6A CN120265194A (zh) 2022-11-17 2023-11-13 清洁制品
KR1020257018742A KR20250109712A (ko) 2022-11-17 2023-11-13 세정 물품
MX2025005692A MX2025005692A (es) 2022-11-17 2025-05-15 Articulo de limpieza

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US202263426227P 2022-11-17 2022-11-17
US63/426,227 2022-11-17
US202263432280P 2022-12-13 2022-12-13
US63/432,280 2022-12-13
US202363444441P 2023-02-09 2023-02-09
US63/444,441 2023-02-09

Publications (1)

Publication Number Publication Date
WO2024105544A1 true WO2024105544A1 (fr) 2024-05-23

Family

ID=91084013

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2023/061456 Ceased WO2024105544A1 (fr) 2022-11-17 2023-11-13 Article de nettoyage

Country Status (7)

Country Link
EP (1) EP4618822A1 (fr)
JP (1) JP2025537321A (fr)
KR (1) KR20250109712A (fr)
CN (1) CN120265194A (fr)
MX (1) MX2025005692A (fr)
TW (1) TW202440025A (fr)
WO (1) WO2024105544A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1140427B1 (fr) * 1998-12-22 2005-07-06 3M Innovative Properties Company Articles abrasifs non tisses et leur procede de preparation
WO2011008481A2 (fr) * 2009-06-30 2011-01-20 3M Innovative Properties Company Article de nettoyage de surface composite
WO2013003650A2 (fr) * 2011-06-30 2013-01-03 Saint-Gobain Abrasives, Inc. Article abrasif non tissé à durée de vie prolongée
CN216585501U (zh) * 2021-07-15 2022-05-24 佛山市裕丰无纺布有限公司 一种吸油吸尘无纺布
CN115003895A (zh) * 2020-01-27 2022-09-02 泽费罗斯股份有限公司 建筑地板衬垫

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1140427B1 (fr) * 1998-12-22 2005-07-06 3M Innovative Properties Company Articles abrasifs non tisses et leur procede de preparation
WO2011008481A2 (fr) * 2009-06-30 2011-01-20 3M Innovative Properties Company Article de nettoyage de surface composite
WO2013003650A2 (fr) * 2011-06-30 2013-01-03 Saint-Gobain Abrasives, Inc. Article abrasif non tissé à durée de vie prolongée
CN115003895A (zh) * 2020-01-27 2022-09-02 泽费罗斯股份有限公司 建筑地板衬垫
CN216585501U (zh) * 2021-07-15 2022-05-24 佛山市裕丰无纺布有限公司 一种吸油吸尘无纺布

Also Published As

Publication number Publication date
EP4618822A1 (fr) 2025-09-24
KR20250109712A (ko) 2025-07-17
MX2025005692A (es) 2025-06-02
CN120265194A (zh) 2025-07-04
JP2025537321A (ja) 2025-11-14
TW202440025A (zh) 2024-10-16

Similar Documents

Publication Publication Date Title
US5363604A (en) Entangled continuous filament nonwoven scouring articles and methods of making same
AU615796B2 (en) Hand scouring pad
US5025596A (en) Hand scouring pad
US20040074520A1 (en) Double sided cleaning implement
RU2651439C2 (ru) Чистящее изделие и способы его изготовления и применения
US20140202494A1 (en) Nonwoven melamine fiber surface preparation and cleaning material
JP2000508926A (ja) 磨き物品およびその製法
US20160000291A1 (en) Nonwoven articles comprising abrasive particles
EP1996061A2 (fr) Tampon nettoyeur de surface de preparation de nourriture chauffee
US9085838B2 (en) Floor mat article
TW200520719A (en) Disposable cleaning implement
EP1238621A1 (fr) Ustensile de nettoyage à double face
US20160000292A1 (en) Nonwoven articles comprising abrasive particles
WO2024105544A1 (fr) Article de nettoyage
JP2022518581A (ja) 擦り磨きパッド
JP2022518582A (ja) 持続可能な擦り磨きパッド
WO2024161328A1 (fr) Article abrasif
KR20200011419A (ko) 장식 입자를 갖는 세정 물품
AU2002254017A1 (en) Double-sided cleaning implement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23890977

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: MX/A/2025/005692

Country of ref document: MX

Ref document number: 202380079451.6

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 2025528736

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 202547047286

Country of ref document: IN

Ref document number: 2025528736

Country of ref document: JP

WWP Wipo information: published in national office

Ref document number: MX/A/2025/005692

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 1020257018742

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 202547047286

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2023890977

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2023890977

Country of ref document: EP

Effective date: 20250617

WWP Wipo information: published in national office

Ref document number: 202380079451.6

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 1020257018742

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2023890977

Country of ref document: EP