EP1100655B1 - Reinigungstücher aus schleifvliesstoffmaterial, insbesondere für hausgebrauch - Google Patents

Reinigungstücher aus schleifvliesstoffmaterial, insbesondere für hausgebrauch Download PDF

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Publication number
EP1100655B1
EP1100655B1 EP99930768A EP99930768A EP1100655B1 EP 1100655 B1 EP1100655 B1 EP 1100655B1 EP 99930768 A EP99930768 A EP 99930768A EP 99930768 A EP99930768 A EP 99930768A EP 1100655 B1 EP1100655 B1 EP 1100655B1
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EP
European Patent Office
Prior art keywords
web
dispenser
pads
package
abrasive
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.)
Expired - Lifetime
Application number
EP99930768A
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English (en)
French (fr)
Other versions
EP1100655A1 (de
Inventor
Maria Del Mar Casado Mateos
Felipe Barandiaran Aldasoro
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 Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of EP1100655A1 publication Critical patent/EP1100655A1/de
Application granted granted Critical
Publication of EP1100655B1 publication Critical patent/EP1100655B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
    • B65D71/08—Wrappers shrunk by heat or under tension, e.g. stretch films or films tensioned by compressed articles
    • 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
    • B24D11/008—Finishing manufactured abrasive sheets, e.g. cutting, deforming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
    • B65D83/0805—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture in a wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/67—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material
    • B65D85/671—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form

Definitions

  • the present invention relates to cleaning pads formed from non-woven abrasive web material, and is especially concerned with cleaning pads which are suitable for domestic use.
  • Cleaning pads for domestic use are available in many forms and can be made from many materials, including low density, non-woven abrasive web material of the type described in US-A-2 958 593. Cleaning pads formed from that type of material are conventionally provided to users already pre-cut, and are sold individually or stacked together in a package.
  • One form of pad which is currently available has a thickness of about 1 cm and is formed from a web having a weight of 650 g/m 2 or more.
  • US-A-5 712 210 describes a non-woven abrasive web material in accordance with the preamble of claim 1 and intended for use as a surface conditioning product.
  • the material is provided in the form of a shrink-wrapped roll which is intended to be unwound from the centre, and is sufficiently self-engaging that it will retain itself in rolled-up form.
  • the web material is perforated at intervals so that individual lengths can be detached from the roll as required.
  • alternative packaging and dispensing means for sheets of the material including a Z-fold dispenser.
  • So-called Z-fold dispensers are, in themselves, known for non-abrasive materials such as paper.
  • Spanish Utility Model No. 1 033 650 describes a container for a band of textile material
  • WO96/20884 describes a dispenser in the form of a flexible enclosure in which a non-woven web is disposed in a serpentine manner.
  • the present invention is concerned with providing, in convenient form, cleaning pads of a non-woven abrasive web material, which are particularly suitable for domestic use. Pads of that type can, by their nature, have a limited life and it is of advantage to the user to have a supply which is readily available when required but is conveniently packaged and easy to store.
  • the present invention provides a longitudinally-extending web of lofty, non-woven, abrasive material, comprising fibres having a tenacity of at least 7.0 g/dtex., the web having a thickness less than 1 cm and a weight less than 500 g/m 2 , and being partially cut at intervals along the length of the web along transverse lines enabling the web to be separated readily into pads, each transverse line extending from one side of the web to the other, and being bowed in the direction along the length of the web.
  • the web may be wound into the form of a roll, in which case the roll preferably has a coreless center and is encased in a wrapping whereby the web can be accessed and unwound from the coreless center.
  • the web may be Z-folded at the mid-point regions of the transverse lines, in which case it may be contained in a box-shaped dispenser having a slot-shaped opening through which web material can be withdrawn from within the dispenser.
  • Fig. 1A shows part of a length of non-woven abrasive web material 1.
  • the material is partially pre-cut at intervals along its length, as indicated at 2, so that it can be readily separated into individual pads 3 which are suitable for domestic cleaning purposes, particularly for cleaning cutlery, crockery and cooking utensils, and for cleaning baths and sinks.
  • Non-woven abrasive web materials and methods for their manufacture are described in US-A-2 958 593, to which reference may be made for information on the general nature of the web material 1.
  • the abrasive web is formed by first forming an air-laid web of staple fibres using a "Rando-Webber” machine, commercially available from the Rando Machine Corporation of Cincinnati, N.Y., USA.
  • the fibre web is conveyed to a horizontal two-roll coater, in which a so-called "pre-bond” resin is applied to both sides of the web, following which the web is conveyed to an oven in which the resin is cured.
  • the web is then conveyed to a spray booth in which it is sprayed on one side with a resin/abrasive slurry following which it conveyed again to an oven to cure the slurry resin.
  • the second side of the web is then sprayed with the same resin/abrasive slurry and the web is conveyed yet again to an oven for the final curing step.
  • the spraying of the web with the resin/abrasive slurry can be omitted.
  • the abrasive web material 1 of Fig. 1A has a width suitable for cleaning pads for domestic use, typically in the range of from 5 to 10 cm and has a thickness which is typically in the range of from 2 to 7mm.
  • the transverse cutting lines 2 are spaced apart by a uniform distance, typically in the range of from 5 to 15 cm. As shown in Fig. 1A, the lines 2 do not extend straight across the web 1 but are bowed towards the leading edge 4 of the web.
  • the mid point of each transverse cutting line 2 is located about 1 cm in front of the ends of the line, in the direction towards the leading edge 4 of the web and, at each end, the cutting line straightens out to meet the side edge of the web at a right angle.
  • Figs. 1B and 1C each show alternative shapes of cutting lines 2 which are also bowed towards the leading edge 4 of the web.
  • each cutting line 2 comprises two substantially straight inclined sections, and in Fig. 1C each cutting line 2 comprises a simple curve.
  • the pre-cutting of the web along the lines 2 is intended to leave the pads 3 joined together in such a way that they can be readily separated and, preferably, just leaves the individual pads joined together over a very short distance (typically a few mm) in the centre of the web as indicated at 5.
  • the fibres from which the web 1 is formed are high-tenacity polymeric fibres, particularly polyamide fibres, having a staple length of 40 mm.
  • high-tenacity is meant a tenacity value of at least 7g/dtex.
  • a suitable fibre material is high tenacity, 15 denier nylon fibre.
  • the staple fibres are formed into a fibre web having a weight in the range of from 60 to 80g/m 2 , typically 70g/m 2 , and the fibre web is roll-coated and sprayed as outlined above (and described in greater detail below) to yield an abrasive web which can be rolled up or Z-folded but which has a surface-to-surface engagement force low enough to permit the individual pads, which are of comparatively small dimensions, to be pulled readily from the web in either of those configurations.
  • a pre-bond resin is applied to both sides of the fibre web, in a horizontal two-roll coater, at a wet weight of 133g/m 2 .
  • the pre-bond resin has the following general composition, by weight: Water 34.5% Antifoaming agent 0.2% Pigment 7.6% Resin 57.7%
  • any suitable resin known for use in the production of non-woven abrasive materials can be used in the above composition, typically a phenolic resin.
  • any suitable antifoaming agent known for use in the production of non-woven abrasive materials can be used in the above composition, typically an aqueous emulsion of dimethil-polysiloxane
  • the "wet" web After passing through the two-roll coater, the "wet" web is conveyed to an oven at a temperature of 165 - 170°C, to initiate curing of the pre-bond resin.
  • a resin/abrasive slurry is then sprayed onto one side of the mat at a wet weight of 376g/m 2 .
  • the resin/abrasive slurry has the following general composition, by weight: Water 22.25% Pigment 3.85% Soft abrasive 29.0% Resin 45.0%
  • the resin used may be as described above for the pre-bond resin.
  • the soft abrasive may comprise any suitable abrasive material having a Mohs hardness of 7 or less and is preferably an organic polymeric material, for example polyester, poly(vinyl chloride), poly(methacrylic acid), polymethylmethacrylate, polycarbonate, polystyrene, and particles of thermosetting polymers such as melamine-formaldehyde condensates.
  • the particle size of the abrasive material can be any desired size but typical sizes are from an average diameter of about 400 ⁇ m down to an average diameter of about 50 ⁇ m. After spraying, the web is conveyed to an oven at a temperature of about 175°C, to cure the slurry resin.
  • a resin/abrasive slurry having the same composition is then sprayed onto the other side of the web, at the same wet weight, and the resin is cured under the same conditions.
  • the cured web was then wound on a winding mandrel to form a large ("jumbo") roll of non-woven abrasive material which is subsequently slit longitudinally into strips, 7.5 cm wide.
  • the strips are then pre-cut transversely, as shown at 2 in Fig. 1A, at intervals of 10 cm.
  • Example 1 The method of Example 1 is followed, except that the pre-bond resin has the following general composition, by weight: Water 38.6% Antifoaming agent 0.3% Pigment 1.8% Resin 59.3% and the resin/abrasive slurry has the following composition by weight: Water 14.3% Pigment/colour 4.23% Resin 20.5% Soft inorganic abrasive 10.0% Hard abrasive 51.0%
  • the soft abrasive may comprise any suitable inorganic abrasive material having a Mohs hardness of 7 or less, for example garnet, flint, silica, pumice, and calcium carbonate.
  • the hard abrasive may comprise any suitable abrasive material having a Mohs hardness of 8 or more, for example silicon carbide, aluminium oxide, topaz, fused alumina-zirconia, boron nitride, tungsten carbide, corundum, and silicon nitride.
  • Example 1 The method of Example 1 is followed, except that the pre-bond resin has the following general composition, by weight: Water 38.2% Antifoaming agent 0.3% Pigment 2.1% Resin 59.4% and the resin/abrasive slurry has the following composition by weight: Water 20.3% Pigment 2.1% Resin 27.6% Hard abrasive 50.0%
  • the resins and the antifoaming agent used may be as described above for Example 1, and the hard abrasive may be as described above for Example 2.
  • the pre-cut web strips of Examples 1 to 3 can be packaged as a large roll (shown in Fig. 2), or can be divided into shorter lengths comprising about 10 to 15 of the pads 3 (Figs. 1A-1C) and then packaged.
  • a preferred configuration in which such a shorter length is packaged is a Z-folded configuration shown in Figs. 3 and 4.
  • the web is folded at the mid-point region 5 of each transverse cut line 2 as in Fig. 1A, for example, to form stack 6 in which each layer 7 comprises a single pad 3 and is joined to the layer below by the uncut portion 5 at the end of the pad. Because the cut lines 2 are curved, the ends of alternate pads in the stack are aligned, as can be seen from Fig. 4.
  • Suitable packages for a Z-folded web are illustrated in Figs. 5 and 6.
  • the web is contained in a box the dimensions of which are just slightly greater than the dimensions of the stack 6 so that the latter is comfortably contained.
  • the box 8 of Fig. 5 is taller and shorter than the box 9 of Fig. 6, and is thus able to contain a greater number of shorter pads.
  • Each box has a slot 10 in its top face 11, through which the web I can be withdrawn.
  • Fig. 7 also shows a Z-folded web contained within a box 12 but, in this case, one side of the box is cut away to show the stack 6 inside.
  • the pad 3 which forms the top layer of the stack 6 projects partly through the slot 10 in the top face of the box and, when that pad is required for use, it is pulled from the box followed by the next pad to which it is still joined by the uncut web portion 5 as shown in Fig. 1A, for example.
  • the user detaches the first pad by simply breaking the connecting portion 5.
  • the surface-to-surface engagement force of the pads 3 is low enough to permit one layer of the stack 6 within the box to disengage comparatively easily from the next, and allow the pads to be withdrawn from the box as described.
  • the boxes 8, 9 and 12 can be formed from any suitable material for example cardboard which is preferably treated (for example, plasticized) to resist moisture.
  • Fig. 8 An alternative package for a length of web comprising about 10 to 15 pads is illustrated in Fig. 8.
  • the web is in the form of a coreless roll 13 which is contained within a transparent shrink wrap 14.
  • the shrink wrap 14 forms a package which is about 6 cm in diameter with a hole 15 of about 3 cm in diameter at one end.
  • Pads are withdrawn from the package from the centre of the roll, as illustrated in Fig. 7 which shows the centremost pad 3 projecting from the package.
  • that pad is required for use, it is pulled from the package followed by the next pad to which it is still joined by the uncut web portion 5.
  • the user detaches the first pad by simply breaking the connecting portion 5.
  • the surface-to-surface engagement force of the pads 3 is low enough to permit the centremost pad within the package to disengage comparatively easily from the surrounding roll, and allow the pads to be withdrawn from the box as described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Woven Fabrics (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Detergent Compositions (AREA)
  • Nonwoven Fabrics (AREA)

Claims (13)

  1. Weniger als 1 cm starke und weniger als 500 g/m2 schwere voluminöse Schleifvliesstoffbahn (1) mit in Bahnlängsrichtung in Abständen voneinander als Querlinien (2) angebrachten Teilschnittlinien, an denen die Bahn leicht in Pads (3) trennbar ist, wobei die Querlinien jeweils von einer Bahnkante zur anderen verlaufen, dadurch gekennzeichnet, daß die Bahn aus Fasern mit einer Feinheitsfestigkeit von mindestens 7,0 g/dtex besteht und daß die Querlinien jeweils bogenförmig in Bahnlängsrichtung verlaufen.
  2. Bahn nach Anspruch 1, bei der es sich bei den Fasern um Polyamidfasern handelt.
  3. Bahn nach Anspruch 1 oder 2, bei der die Bahn an der bogenförmigen Linie mit Ausnahme eines Mittelpunktbereichs (5) der Linie völlig durchschnitten ist.
  4. Bahn nach einem der vorhergehenden Ansprüche als rollenförmiger Wickel.
  5. Bahn nach Anspruch 4, bei der die Rolle kernlos aufgewickelt ist und von einer Hülle umgeben wird, durch welche hindurch die Bahn ergriffen und abgewickelt werden kann.
  6. Bahn nach Anspruch 3, bei der die Bahn in den Mittelpunktbereichen der Querlinien Z-förmig gefaltet ist.
  7. Bahn nach einem der vorhergehenden Ansprüche, bei der die Bahn eine Breite von 5 bis 10 cm aufweist.
  8. Bahn nach einem der vorhergehenden Ansprüche, bei der die querverlaufenden Teilschnittlinien in Bahnlängsrichtung 5 bis 15 cm voneinander beabstandet angebracht sind.
  9. Bahn nach einem der vorhergehenden Ansprüche, bei der die Bahn 2 bis 7 mm stark ist.
  10. Spenderpackung mit einem eine Bahn gemäß Anspruch 6 enthaltenden kastenförmigen Spender (8, 9, 12) mit einer schlitzförmigen Öffnung (10), über welche Bahnmaterial aus dem Spender abgezogen werden kann.
  11. Packung nach Anspruch 10, bei der die Öffnung in einer mit der Oberseite der Z-förmig gefalteten Bahn parallel und benachbart angeordneten Seite des Spenders angebracht ist und quer zur Bahn verläuft.
  12. Packung nach Anspruch 11, bei der die Öffnung mittig in der besagten Seite des Spenders angebracht ist.
  13. Packung nach einem der Ansprüche 10 bis 12, bei der der Spender zur Aufnahme einer 10 bis 15 Pads entsprechenden Länge der Z-förmig gefalteten Bahn ausreichend tief ausgeführt ist.
EP99930768A 1998-07-31 1999-06-28 Reinigungstücher aus schleifvliesstoffmaterial, insbesondere für hausgebrauch Expired - Lifetime EP1100655B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9816681 1998-07-31
GBGB9816681.2A GB9816681D0 (en) 1998-07-31 1998-07-31 Cleaning pads formed from non-woven abrasive web material,especially for domestic use
PCT/US1999/014539 WO2000006341A1 (en) 1998-07-31 1999-06-28 Cleaning pads formed from non-woven abrasive web material, especially for domestic use

Publications (2)

Publication Number Publication Date
EP1100655A1 EP1100655A1 (de) 2001-05-23
EP1100655B1 true EP1100655B1 (de) 2002-09-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99930768A Expired - Lifetime EP1100655B1 (de) 1998-07-31 1999-06-28 Reinigungstücher aus schleifvliesstoffmaterial, insbesondere für hausgebrauch

Country Status (11)

Country Link
EP (1) EP1100655B1 (de)
AT (1) ATE223788T1 (de)
AU (1) AU4722899A (de)
BR (1) BR9912623A (de)
CO (1) CO5100953A1 (de)
ES (1) ES2183577T3 (de)
GB (1) GB9816681D0 (de)
PE (1) PE20000897A1 (de)
PT (1) PT1100655E (de)
TR (1) TR200100310T2 (de)
WO (1) WO2000006341A1 (de)

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CN113226945A (zh) * 2018-12-19 2021-08-06 3M创新有限公司 环形磨料带分配器
JP2022518582A (ja) 2019-01-29 2022-03-15 スリーエム イノベイティブ プロパティズ カンパニー 持続可能な擦り磨きパッド
CN113423320A (zh) 2019-01-29 2021-09-21 3M创新有限公司 擦洗垫
CN115867564A (zh) 2020-07-14 2023-03-28 先锋国际良种公司 杀昆虫蛋白及其使用方法
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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ATE223788T1 (de) 2002-09-15
PE20000897A1 (es) 2000-09-14
AU4722899A (en) 2000-02-21
PT1100655E (pt) 2002-12-31
WO2000006341A1 (en) 2000-02-10
GB9816681D0 (en) 1998-09-30
CO5100953A1 (es) 2001-11-27
BR9912623A (pt) 2001-04-24
ES2183577T3 (es) 2003-03-16
EP1100655A1 (de) 2001-05-23
TR200100310T2 (tr) 2001-07-23

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