EP2334858A2 - Matériau de lavage comprenant des fibres naturelles - Google Patents

Matériau de lavage comprenant des fibres naturelles

Info

Publication number
EP2334858A2
EP2334858A2 EP09819708A EP09819708A EP2334858A2 EP 2334858 A2 EP2334858 A2 EP 2334858A2 EP 09819708 A EP09819708 A EP 09819708A EP 09819708 A EP09819708 A EP 09819708A EP 2334858 A2 EP2334858 A2 EP 2334858A2
Authority
EP
European Patent Office
Prior art keywords
fibres
web
resin
scouring material
scouring
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.)
Withdrawn
Application number
EP09819708A
Other languages
German (de)
English (en)
Other versions
EP2334858A4 (fr
Inventor
Jeremie Peyras-Carratte
Jean-Marie Coant
Carmen Martin Rivera
Cristobal Martin Bernia
Maria De Los Angeles Alcazar
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
Publication of EP2334858A2 publication Critical patent/EP2334858A2/fr
Publication of EP2334858A4 publication Critical patent/EP2334858A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/001—Manufacture of flexible abrasive materials
    • B24D11/005—Making abrasive webs
    • 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
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • 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
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • 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
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418—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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/549—Polyamides
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/55—Polyesters
    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/66—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions at spaced points or locations
    • 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]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
    • Y10T442/632—A single nonwoven layer comprising non-linear synthetic polymeric strand or fiber material and strand or fiber material not specified as non-linear

Definitions

  • the present disclosure relates to non- woven fibrous scouring materials suitable for use for cleaning surfaces.
  • Scouring materials are produced in many forms, one being as a web of non- woven fibrous material (for example material of the type described in US-A-2 958 593 of Hoover et al). Following manufacture, the web of scouring material may be divided into individual pieces of a size suitable for its intended use.
  • Non-woven fibrous hand pads for domestic use and for more general abrasive applications are available, under the trademark “Scotch-Brite”, from 3M Company of St. Paul, Minnesota, USA, and non-woven fibrous hand pads that provide a very mild scouring action for skin cleansing are available, under the trademark "Buf-puf ', also from 3M Company.
  • Non-woven fibrous scouring materials are also used outside the domestic environment, for example in floor pads such as those available, also under the trademark "Scotch-Brite", from 3M Company.
  • a non-woven fibrous scouring material is preferably a comparatively open material (i.e. it has a comparatively high void volume) so that it can retain debris removed from the surface that is being cleaned and thereby provide an effective cleaning action.
  • a material can also be cleaned very easily by rinsing in water or another suitable liquid, so that it can be re-used.
  • Non-woven fibrous materials having a comparatively high void volume involve forming an open, three-dimensional non-woven web of synthetic fibres, applying a liquid binder resin to the web, and then curing the binder resin to bond the fibres together.
  • a preferred method of applying the binder resin is roll coating, which coats the fibres with the resin substantially continuously throughout the web.
  • this bonded web of fibres typically has a maximum density of 60 kg/m 3 .
  • the characteristics of the bonded web may be such that it can be used without further treatment as a scouring material.
  • abrasive particles can be adhered to the bonded web to enhance the abrasive characteristics of the web.
  • Scouring materials formed solely from natural vegetable fibres include, for example, traditional scourers for domestic use formed from the fibrous parts of gourds or palm leaves. Such traditional scourers have the disadvantage that they cannot be mass- produced to a uniform .standard.
  • J P- ⁇ -1 618 239 (3JvI Innovative Properties Company) describes a method of making a scouring material comprising the steps of: forming a three- dimensional non-woven web of natural fibres contacted with dry particulate material that includes fusible binder particles; exposing the web to conditions that cause the binder particles to form a fiowable liquid binder; arsd then solidifying the liquid binder to form bonds between the fibres of the web and thereby provide a bonded web. Abrasive particles are then adhered to the pre-bonded web by at least a make-coat resin.
  • the method described in kP-A- i 61 S 239 is effective, it requires the use of apparatus that is less widely available ⁇ ban that used to carry ou?
  • the present disclosure provides a scouring material comprising a three-dimensional non- woven web of entangled fibres bonded to one another at mutual contact points, wherein: (i) the fibres comprise natural vegetable fibres in an amount of at least 50% by weight, and crimped synthetic fibres in an amount of at least 5% by weight; (ii) the fibres, throughout the web, have a substantially continuous coating of binder resin; and
  • the web of bonded fibres has a maximum density of 60 kg/m .
  • the scouring material typically has a maximum density of 55 kg/m 3 , more especially a density in the range of from 25 to 45 kg/m 3 .
  • crimped synthetic fibres with the natural vegetable fibres has been found to facilitate the production of a scouring material using the conventional type of manufacturing process described above, especially one in which a binder resin is applied to a web of fibres by roll coating.
  • a method of making a scouring material in accordance with the disclosure may comprise the steps of:
  • the non-woven web of entangled fibres includes heat-sensitive fibres and the method comprises the further step, between steps (a) and (b), of applying heat to the web to form a pre-bonded web in which some at least of the fibres are bonded to one another at mutual contact points by a pre-bond resin provided by the heat-sensitive fibres.
  • the heat-sensitive fibres when present, may contribute at least some of the crimped synthetic fibres in the web of bonded fibres.
  • the cores of the heat-sensitive fibres may contribute at least some of the crimped synthetic fibres in the web of bonded fibres.
  • the term '"natural vegetable fibres'' means fibres derived directly from plants (including trees and bushes); the term “'synthetic fibres” means fibres produced from synthetic polymers, typically by extrusion; arid the term ''roll-coating' * means a process in which a nonwoven fibrous web is passed between rollers that apply resin to the web with sufficient pressure to ensure that the fibres, throughout the web, receive a substantially continuous coating of the resin.
  • Fig. 1 sbows a scouring pad comprising scouring materia! in accordance v ⁇ ith the disclosure
  • FIG. 2 illustrates diagrammatically, and on an enlarged scale, the structure of the scouring pad of Fig. 1 ;
  • FIG. 3 is a diagrammatic illustration of apparatus for making scouring materials in accordance with the disclosure.
  • Fig. 4 is a diagrammatic illustration of another form of apparatus for making scouring materials in accordance wifh the disclosure.
  • Fig. 1 shows a generally-rectangular scouring pad 1 intended for hand use
  • Kig. 2 illustrates the structure of the pad material in greater detail
  • the pad 1 comprises a three- dimensional non-woven web 3 of entangled fibres 5, bonded to one another at mutual contact points 7.
  • the fibres 5, described in greater detail below, comprise at least 5% by weigh? of crimped synthetic fibres and at least 50% by weight of natural vegetable fibres. 1 hroughout the web 3, the fibres 5 have a substantially continuous coating of binder resin (not visible in the drawing).
  • Fig. 2 also shows optional abrasive particles ⁇ adhered to the fibres.
  • the web of fibres 5, including the binder resin but without the abrasive particles ⁇ ⁇ > has a maximum density of 60 kg ⁇ 'm 3 (more preferably, in the case of hand pads for domestic use, a density in the range of from 25 to 45 kg/m ).
  • a scouring pad as shown in Fig. 1 can be Sarninafed to another fype of material, for example a sponge material.
  • a scouring pad as shown in Fig. 1 can be Sarninafed to another fype of material, for example a sponge material.
  • that other material is a natural material (for example, a celiuiosie sponge) or has a comparatively high content of natural material
  • the apparatus illustrated m " Kig. 3 comprises web-forming equipment 10 to which a selected mix of fibres 11 is supplied to be formed into a dry-laid, open, lofty three- dimensional web 12.
  • a preferred type of web is an air-laid web as described in US-A-2 958 593, in which case the web-forrning equipment 10 may be a commercially-available '"Rando- Webber” device available, for example, from the Rando Machine Co. of LORD, N.Y., L r S ⁇ .
  • the web-forming equipment 10 may be of the type described in WO 05/0 ⁇ -1529 ( Form-Fibre Denmark APS), or of the type available from DOA of I in/, Austria.
  • the fibre mix 1 1 comprises a!
  • the vveb- forming equipment 10 is preferably operated to produce a dry-laid web 12 having a minimum thickness of about 5 mm and a maximum basis weight of about 500 g/mA If the web is intended for conversion into hand pads, a maximum basis weight of about 30(3 g/rn may be preferred. Other web thicknesses and basis weights may, however, be appropriate depending on the required nature of the scouring material that is being produced.
  • Downstream of the web-forming equipment 10 is a conventional rol!-coaiing station 13, where the web 12 passes through the nip between rollers 14 that apply a binder resin 15 from a tank 16 to the web at a metcrcd rate.
  • the pressure excited by the rollers 14 on the web is sufficient Io ensure thai the binder resin penetrates the entire thickness of the web and coats the fibres throughout.
  • the web then passes through dii oven 17 which is operated at a temperature sufficient to cure the binder resin 15 whereby, when the web has emerged from the oven and cooled, the fibres 1 1 are bonded together at their points of contact and, throughout the web (now indicated by the reference 12'), have a substantially continuous coating of the binder resin.
  • the characteristics of the web 12' can be adapted to the intended use of the web.
  • the bonded web 12 " may be suitable without further treatment for use as a scouring material for domestic or cosmetic cleaning. If so, it can be cut into pads of a suitable si/e for the intended use. typically pads of a suitable shape and size for hand-held use. If required, however, the abrasive properties of the web 1 can be enhanced by applying a make-coat resin with optional abrasive particles 9 to the web as shown in Fig, 2, That can be achieved by passing the web 12' through the additional apparatus illustrated in Fig. 3, which comprises successive spray booths 18, 19, each having an associated oven 20, 21.
  • the web passes through the first spray booth 18, one surface of the web is sprayed with a liquid make-coat resin (or a slurry 22 of abrasive particles mixed with the make-coat resin) that is subsequently cured by passing the vveb through the oven 20.
  • the web then passes through the second spray booth 19, in which other surface of the web is sprayed with tbe same liquid make-coat resin, or abrasive-resin slurry, which is then cured by parsing the web through the oven 21.
  • 1 he resulting abrasive web 12" may then be cut into pads of a suitable shape and size as already described above.
  • the second spray booth I L and the associated oven 21 are omitted and the web is turned over after it has left the first oven 20 and is conveyed a second time through the first spray booth 1 K so that the other side of the web can be sprayed.
  • the web then passes for a second time through the oven 20,
  • the web may then be cut into pads of a suitable shape and si/e as already described above.
  • Fig. 4 illustrates a modified form of the apparatus shown in Fig. 3, suitable for use when it is desired to consolidate the web 12 emerging from the web-forming equipment 10 before it passes to tbe roll -coating station 13.
  • the consolidation may be required, for example, if the web 12 cannot be passed directly to the roll-coating station 13 from the web-forming equipment 10 and, consequently, is subjected to additional handling.
  • the apparatus of Fig. 4 differs from that shown in Fig. 3 by the inclusion of an oven 25 between tbe web- forming equipment 10 and the roll-coating station 13. Use of the apparatus of Fig.
  • the fibre mix 1 1 supplied to the web-forming equipment includes heat- sensitive fibres that will melt when the web 12 passes through the oven 25, forming bonds between other fibres in the vveb sufficient to enable the web to withstand any handling that it might receive during its passage to the roll-coating station 13. Thereafter, the process carried out using the apparatus of Fig. 4 is as described above with reference to Fig. 3.
  • Scouring materials can be produced as described above in a variety of thicknesses and basis weights, and can be cut into other shapes, depending on their intended use. Thicker webs, for example, may be cut into discs for use as floor pads,
  • the fibres Any suitable fibres can be used in the apparatus of Figs. 3 and 4, provided they enable a non-woven fibrous material suitable for use as a scouring material to be produced.
  • crimped synthetic fibres contribute to the resilience of the web 12 that is produced in the web- forming equipment 10 of the apparatus of Figs. 3 and A, and thus influence the ability of the web to be roll-coated in the station 13 without being crushed to such an extent that its open nature is destroyed.
  • 1 he crimped synthetic fibres should comprise at least 5% by weight of lbe tolai fibre content of the final scouring material, the actual amount being determined having regard to the nature of the other fibres in the fibre mix 11 (particularly the natural vegetable fibres) and the required characteristic 1 !! of the final scouring material
  • Crimped synthetic fibres suitable for use in the fibre mix 1 1 include crimped nylon fibres and crimped polyester fibres. Mixtures of different crimped synthetic fibres may also be used.
  • the ability of the web 12 to resist being crushed in the roll-coating station 13 tends to increase with the amount of synthetic fibre present in the web; Vvith lbe linear density of the crimped synthetic fibres; and with the degree of crimp in the crimped synthetic fibres.
  • the synthetic fibres should have a length in the range normally used for non-woven fibrous webs (typically between 40 and 60 cm), it being known that very long fibres may get trapped in the web-forming equipment 10 and that short fibres tend to reduce the cohesion of the web.
  • at least some of the crimped synthetic fibres have a linear density of at least 15 dtex.
  • the use of crimped synthetic fibres having a linear density of less than 15 dtex is possible, depending on the nature of the other fibres in the fibre mix 1 1 .
  • the degree of crimp in the fibres will he in the range of from about 2 to about 10 crimps per cm.
  • Examples of natural vegetable fibres capable of providing comparatively-resilient open webs even when combined with only comparatively-small amounts of crimped synthetic fibres include:
  • sisal fibres (ii) fibres from the leaves of Agave sisalana (hereinafter referred to as sisal fibres); and (iii) fibres from the tissues surrounding the seed of Co ⁇ -o.i niidfera (hereinafter referred to as coco fibres and also known as coir).
  • fibres may be used and, in some case, the fibres may be mixed with finer natural vegetable fibres, for example, hemp fibres.
  • Heat-sensitive fibres When heat-sensitive fibres are included in the fibre mix 11 as described above with reference to Fig. 4, they should be selected to ensure that they melt and bond to the other fibres in the web at a temperature below that at which those other fibres would be degraded or melted.
  • Heat-sensitive fibres may be cither mono-component or muiti- cornponent Obres,
  • a multi-component fibre is a synthetic fibre having at least a first portion and a second portion, where the first portion has a melting point lower than the second portion.
  • One type of multi-component fibre is a bi-component fibre, examples of which are described in I " S- ⁇ - 5 082 720 of Minnesota Mining and Manufacturing Company.
  • One form of bi-componcnt fibre has a sheath/core structure, where the sheath that surrounds the core has the lower melting point.
  • Another form of multi-component fibre has a layered structure, where one layer has a lower melting point than another layer.
  • the first (lower melting point) portion of a multi-component fibre will melt, while the second (higher melting point) portion remains intact.
  • the first portion tends to collect at junction points where fibres contact one another. Then, upon cooling, the material of the first portion will re-solidify to secure the fibres together.
  • the first (lower melting point) portion of a multi-component fibre may be comprised of such materials as copolyester or polyethylene; and the second portion may be comprised of such materials as polypropylene or polyester.
  • the higher melting point portion may contribute to the content of crimped synthetic fibre in the scouring material produced (see above).
  • the binder resin is the binder resin
  • Any resin known to be suitable for roll-coating and for use in the manufacture of scouring materials can be used in the roll-coating stations 13 of the apparatus shown in Figs. 3 and 4 although, for environmental reasons, water-based resins are preferred.
  • the resin should be selected to provide the scouring material with sufficient flexibility and strength for its intended use, and with the appropriate degree of water and heat resistance.
  • Suitable resins include phenolic resins, polyurethane resins, polyureas, styrene-butadiene rubbers, nitrile rubbers, epoxies, acrylics, and polyisoprene.
  • the resin is preferably water soluble.
  • water soluble resins include modified styrene -butadiene rubbers, polyethylene glycol, polyvinylpyrrolidones, polylactic acid (PLA), polyvinylpyrrolidone/vinyl acetate copolymers, polyvinyl alcohols, carboxymethyl celluloses, hydroxypropyl cellulose starches, polyethylene oxides, polyacrylamides, polyacrylic acids, cellulose ether polymers, polyethyl oxazo lines, esters of polyethylene oxide, esters of polyethylene oxide and polypropylene oxide copolymers, urethanes of polyethylene oxide, and urethanes of polyethylene oxide and polypropylene oxide copolymers.
  • the coating weight of the binder resin may be in the range of from 50 to 300 g/m 2 (dry), more specifically 100 to 200 g/m 2 (dry).
  • the optional make-coat resin or abrasrve-resin slurry typically comprises abrasive particles in an amount in the range of from 30 to 55% by weight.
  • TSu 1 abrasive particles used in the slurp/ can be of any type known to be suitable for scouring materials, taking into account the nature of the surfaces to be cleaned and the abrasive action that the scouring materia] is required to produce.
  • Suitable abrasive materials include inorganic materials, for example aluminium oxide (including ceramic aluminium oxide, heat-treated aluminium oxide, and white-fused aluminium oxide), silicon carbide, tungsten carbide, alumina /irconia, diamond, ceria, cubic boron nitride, silicon nitride, garnet, and combinations thereof.
  • Suitable abrasive materials also include softer, less aggressive materials such as polymeric particles and crushed natural materials
  • Suitable polymeric materials for the abrasive particles include polyamide, polyester, polyvinyl chloride, poly(methacrylic) acid, polymethylmethacrylate, polycarbonate, polystyrene, and melamine-formaldehydc condensates.
  • the abrasive particles should have a particle s ⁇ /e small enough to allow them to penetrate into the bonded web 12' and, subject to that, it is contemplated that abrat>ive agglomerates, for example those described in US-A-4 625 275 and A 7 ⁇ 9 93 ⁇ ⁇ may also be used.
  • the make-coat resits used, with or without the abrasive particles can be any resin known to be suitable for spray-coating and as a make-coat in scouring materials although, for environmental reasons, wafer-based resins are preferred.
  • the resin should be .selected to provide the scouring material with sufficient flexibility and strength for ib intended use, and with the appropriate degree of water and heat resistance.
  • Suitable resins include any of the resins listed above for use in the roll-coating equipment.
  • Preferred resins include water-based phenolic resins (especially for harder-wearing scouring material) and water- based latex resins (especially for nots-serateh scouring materials for use in bathrooms etc.).
  • the coating weight of the make-coat resin may be in the range of from 50 to 400 gsm(wet), more specifically 150 to 250 gsm(wet).
  • Dispersed throughout the binder or make-coat resin, or separately applied following application of the resin may be a crosslinker, filler, catalyst, fragrance, perfume, microcapsules, antibacterial agents, antimicrobial agents, antifungal agents, antifoaming agents, thickeners, or fillers.
  • Scouring materials in accordance with the disclosure arsd methods for producing them, are described in the following non-limiting examples. All parts and percentages arc by weight unless otherwise indicated. The examples used the following materials and equipment:
  • Agave fibres Grade 1 natural fibres from the leaves of Agave lequ ⁇ ' ana plants, available through Vinmexco of Stanton, CA 90680, USA.
  • Sisal fibres natural fibres from the leaves of Agave sisalana pSarsts, available from
  • Coeo fibres also k «owa as eoir: natural fibres from the tissues surrounding the seed of Cocas mu-ifera (the coconut palm), available from AVW Vietnam Ltd of Buggenhout,
  • Curaua fibres natural fibres from the leaves of Ananas lucidus Miller plants, available from Pematec-Triangel do Brazil Ltda. of Sao Bernardo Do Campo, Brazil.
  • Heat-sensitrve fibres bi -component polyester fibres having, a linear density of 72 dtex and a length of 53 mm, available from Fiber Innovation Technology, Inc. of Johnson City,
  • Polyamide fibres nylon 6.6 fibres having a linear density of 22 dtex and a length of
  • Water-based acrylic resin Acrodur 3558 resin, available from BASF of Ludwigshafen, Germany.
  • Abrasive particles grade P400 aluminium oxide particles available, under the trade designation "Corundum FRPL”, from Treibacher Schleifsch AG of Villach, Austria.
  • Roll coating apparatus equipment available, under the trade designation PSI-33737, from CAVITEC AG of Tobel, Germany.
  • Ovens through-air bonding ovens available from CAVITEC AG of Tobel, Germany.
  • Spray equipment Spray guns (type A25 with type 227T nozzles) available, under the trade name "Kremlin”, from KREMLIN REXON of Stains, France.
  • a fibre mixture comprising, by weight, 80% agave fibres and 20% heat-sensitive fibres (72 dtex linear density) was used in the pilot scale "Rando Webber" to form a non-woven web of fibres having a thickness of about 25 mm and a basis weight of about 400 g/m 2 .
  • the web was then passed through an oven which was operated at a temperature of 140 0 C.
  • the web had a dwell time of 3 minutes in the oven to soften the heat-sensitive fibres so that, when the web left the oven and cooled, some of the fibres in the web were bonded together, giving the web a greater degree of cohesion.
  • the pre-bonded web was then passed between the rolls of the roll-coating apparatus in which it was impregnated with the latex resin.
  • the web was passed once again through an oven, operated this time at 17O 0 C.
  • the web had a dwell time of 8 minutes in the oven to cure the resin and was then allowed to cool forming a bonded web.
  • Example 2 Example 1 was repeated, except that the agave fibres were replaced with sisal fibres
  • Example 1 was repeated, except that the latex resin applied by the roll coating apparatus was replaced by the acrylic resin.
  • a fibre mixture comprising, by weight, 80% agave fibres and 20% polyamide fibres was used in the industrial scale "Rando Webber" to form a non-woven web of fibres.
  • the web was produced under operating conditions similar to those used to produce non- woven webs of synthetic fibres for scouring materials and had a basis weight of about 220 g/m 2'
  • Example 10 The web was then passed between the rolls of the roll-coating apparatus in which it was impregnated with the latex resin. The web was then passed through an oven which was operated at a temperature of 150 0 C to cure the resin, the dwell time of the web in the oven being about 1 minute. The web was then allowed to cool, forming a bonded web.
  • Example 10 The web was then passed between the rolls of the roll-coating apparatus in which it was impregnated with the latex resin. The web was then passed through an oven which was operated at a temperature of 150 0 C to cure the resin, the dwell time of the web in the oven being about 1 minute. The web was then allowed to cool, forming a bonded web.
  • Example 10 Example 10
  • Example 9 was repeated except that the fibre mixture comprised, by weight, 60% agave fibres and 40% polyamide fibres and was used in the industrial scale "Rando Webber" to form a non- woven web of fibres having a basis weight of about 215 g/m 2'
  • Example 1 was repeated except that the fibre mixture comprised, by weight, 70% agave fibres, 15% polyamide fibres and 15% heat-sensitive fibres (15 dtex linear density) and was used in the "DOAWebber" to form a non- woven web of fibres having a thickness of about 10 mm and basis weight of about 200 g/m 2 .
  • the webs of Examples 1 to 3 exhibited only a limited decrease in thickness as a result of the roll-coating step. In each case, the open structure of the web was retained sufficiently to provide samples suitable for use as a scouring material. Of these webs, that of Example 1 exhibited the lowest decrease in thickness as a result of the roll-coating step.
  • Example 6 The web of Example 6 indicated that the use of a different water-based resin for the roll- coating step also did not produce any significant change in the results.
  • Example 11 exhibited very little change in thickness as a result of the roll- coating step.
  • the open structure of the web was retained sufficiently to provide samples suitable for use as a scouring material. It was also observed that less dust was produced during the web-forming process.
  • non-woven fibrous scouring materials comprising a substantial amount of natural vegetable fibres can be produced using a conventional process (in some case; * one that involves the formation of a pre-bonded web), through an appropriate selection of the natural vegetable fibres employed and by including, with the natural fibres, an appropriate amount of crimped synthetic fibres.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L’invention concerne un matériau de lavage composé d’un voile non-tissé tridimensionnel (3) de fibres entrelacées (5) liées les unes aux autres en des points de contact (7) mutuels. Les fibres comprennent des fibres végétales naturelles à raison d’au moins 50 % en poids, et des fibres synthétiques ondulées à raison d’au moins 5 % en poids. Les fibres, tout le long de la bande, présentent un revêtement sensiblement continu de résine liante; et le voile de fibres liées présente une densité maximale de 60 kg/m3. Un procédé de fabrication du matériau de lavage comprend les étapes consistant à : former un voile non-tissé tridimensionnel de fibres entrelacées; enduire le voile au rouleau d’une résine liante; et faire durcir la résine liante pour former le matériau de lavage.
EP09819708A 2008-10-06 2009-10-05 Matériau de lavage comprenant des fibres naturelles Withdrawn EP2334858A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0818186A GB0818186D0 (en) 2008-10-06 2008-10-06 Scouring material comprising natural fibres
PCT/US2009/059511 WO2010042430A2 (fr) 2008-10-06 2009-10-05 Matériau de lavage comprenant des fibres naturelles

Publications (2)

Publication Number Publication Date
EP2334858A2 true EP2334858A2 (fr) 2011-06-22
EP2334858A4 EP2334858A4 (fr) 2012-03-07

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US (1) US20100087117A1 (fr)
EP (1) EP2334858A4 (fr)
CN (1) CN102227527A (fr)
GB (1) GB0818186D0 (fr)
WO (1) WO2010042430A2 (fr)

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GB0603875D0 (en) * 2006-02-28 2006-04-05 3M Innovative Properties Co Wear indicator for a flocked scouring material
US11261568B2 (en) 2016-10-27 2022-03-01 Kimberly-Clark Worldwide, Inc. High bulk wet-pressed agave tissue
AU2016427801B2 (en) * 2016-10-27 2021-11-04 Kimberly-Clark Worldwide, Inc. High strength and low stiffness agave tissue
US20200157734A1 (en) * 2017-06-29 2020-05-21 3M Innovative Properties Company Nonwoven article and method of making the same
ES1222384Y (es) * 2018-11-19 2019-03-21 Endeiza Rozas Itziar Esponja de fibra vegetal para uso doméstico
FR3114008B1 (fr) * 2020-09-11 2023-12-08 Swm Luxembourg Sarl Filtre pour article à fumer ou vapoter comprenant un substrat nontissé
FR3114009B1 (fr) * 2020-09-11 2023-01-06 Swm Luxembourg Sarl Filtre pour article à fumer ou vapoter comprenant un substrat nontissé
JP2023551364A (ja) * 2020-10-30 2023-12-08 ナイキ イノベイト シーブイ 非対称面複合不織テキスタイル及びその製造方法
CN112779667A (zh) * 2021-01-28 2021-05-11 苏州咔乐日用品有限公司 纤维清洁片及其制备方法

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Also Published As

Publication number Publication date
WO2010042430A3 (fr) 2010-08-12
US20100087117A1 (en) 2010-04-08
WO2010042430A2 (fr) 2010-04-15
CN102227527A (zh) 2011-10-26
EP2334858A4 (fr) 2012-03-07
GB0818186D0 (en) 2008-11-12

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