WO2000053835A1 - Torchon - Google Patents

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Publication number
WO2000053835A1
WO2000053835A1 PCT/GB2000/000808 GB0000808W WO0053835A1 WO 2000053835 A1 WO2000053835 A1 WO 2000053835A1 GB 0000808 W GB0000808 W GB 0000808W WO 0053835 A1 WO0053835 A1 WO 0053835A1
Authority
WO
WIPO (PCT)
Prior art keywords
wiper
layer
meltblown
woven
outer layers
Prior art date
Application number
PCT/GB2000/000808
Other languages
English (en)
Inventor
Pat Annable
Original Assignee
Kimberly-Clark Limited
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 Kimberly-Clark Limited filed Critical Kimberly-Clark Limited
Priority to AU29285/00A priority Critical patent/AU2928500A/en
Publication of WO2000053835A1 publication Critical patent/WO2000053835A1/fr

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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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • 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
    • D04H1/544—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
    • D04H1/54—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
    • D04H1/555—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 by ultrasonic heating
    • 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/06—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by welding-together thermoplastic fibres, filaments, or yarns

Definitions

  • This invention relates to a wiper useful for a wide variety of industrial and consumer applications including those in the automotive and electrical industries as well as for general purpose wiping.
  • the invention relates to a soft, low linting wiper having high absorbency.
  • a wide variety of non-woven wiper products are currently employed both for specific applications and general purpose wiping. For many such applications, non-woven wipers can out perform traditional cloth and paper wiping products. However, it is generally desirable to further improve the properties of non-woven wipers, in particular their propensity to linting, their absorbency and conformability .
  • US Patent No. 4,307,143 discloses a non-woven wiper designed to absorb oil and water comprising a low basis weight web of synthetic, thermoplastic microfibres treated with a wetting agent to improve water and oil absorption.
  • US Patent No. 4,041,203 describes a non- woven double layer wiper having high tensile strength comprising an integrated mat of generally discontinuous thermoplastic polymeric microfibres and a web of substantially continuous and randomly deposited molecularly orientated filaments of a thermoplastic polymer.
  • US Patent No. 4,298,649 describes a non-woven disposable wiper intended for use on metal surfaces and having a reduced tendency to accumulate metal chips or other small, sharp foreign objects.
  • the wiper comprises a combination of a meltblown microfibre web laminated to a web of interconnected aligned split filaments.
  • a wiper is described which comprises a meltblown central layer sandwiched between two spun-bonded layers.
  • WO 90/04060 there is described a three layer wiper in which a meltblown layer is sandwiched between a spun-bonded layer and another meltblown layer.
  • a non-woven wiper is described specifically for use in cleaning microelectronic devices. Resistance to linting and a reduction in the sodium ion content of the wiper is achieved using a mixture of wetting agents.
  • meltblown wipers such as that described in US Patent No. 4,307,143, have relatively low air-born lint, these are high linting under 'sticky tape 1 methods such as EDANA lint test and therefore have a tendency to contaminate surfaces during wiping. In particular, it has proved difficult to produce a bulky and hence highly absorbing meltblown wiper whilst maintaining low linting properties.
  • Conventional meltblown wipers also lack the random orientation of fibres and range of fibre sizes required to give clean wiping.
  • a soft, highly absorbent product having low linting properties may be provided by sandwiching at least one highly absorbent meltblown layer between at least two porous, low-linting outer layers. While serving to permit the passage of fluids, e.g. oil, solvents and water, into the inner meltblown layer, the outer layers effectively trap the linting fibres .
  • the outer layers provide strength and low linting properties and by careful selection of the nature of the outer layers may also provide improved absorbency and absorbency rates.
  • the invention provides a non-woven wiper comprising a meltblown thermoplastic microfibre layer, preferably having a basis weight in the range of from about 5 to 150 g/m 2 , more preferably 20 to 100 g/m 2 , e.g. 30 to 80 g/m 2 , especially 40 to 60 g/m ' , sandwiched between at least two porous, low- linting, preferably non-linting outer layers.
  • at least one of the outer layers is provided by a bonded carded web.
  • the invention provides a process for the preparation of a wiper as herein described, said process comprising laminating a meltblown thermoplastic microfibre layer between at least two porous, low-linting outer layers, preferably wherein at least one of said outer layers is a bonded carded web .
  • the invention provides the use of a wiper as herein described for cleaning surfaces and/or workpieces .
  • the laminate structure of the wiper of the invention permits an increase in the bulk and thus the absorbency of the inner meltblown thermoplastic microfibre layer (hereinafter 'meltblown layer') without the problem of linting.
  • an increase in bulk is achieved by employing process conditions during manufacture which result in a loose assemblage of fibres prone to lint.
  • increasing the bulk of the inner layer does not create more linting fibres since these are effectively trapped within the outer non-linting layers.
  • any increase in the bulk of the inner meltblown layer may reduce its strength, the overall strength of the final laminate product is largely dependent on that of the outer layers which can be selected accordingly.
  • the further synthetic or natural polymers or fibres may be those conventionally employed in the manufacture of meltblown microfibre composite materials and may be selected from cellulose fibres, e.g. pulp and rayon, other thermoplastic polymers, e.g. polyesters and polyamides, cotton fibres. Synthetic polymers may be meltblown along with the polyolefin polymers or added at another suitable stage of the process. Natural polymers or fibres are generally unsuitable for meltblowing and are therefore added to the meltblown polymer at a convenient time after meltblowing.
  • the term 'meltblown layer' encompasses a composite comprising a meltblown polymer component and an additional natural or synthetic, e.g. polymer, component which need not be meltblown.
  • the polyolefin is most preferably polypropylene or a mixture of polypropylene and polyethylene.
  • the average fibre diameter of the microfibres of the meltblown layer may be between 0.1 to 100 ⁇ m, preferably 0.1 to 20 ⁇ m, especially 1 to 10 ⁇ m.
  • the dry thickness of the meltblown layer may be approximately 0.1 to 3 mm, preferably 0.5 to 2 mm, e.g. about 1 mm.
  • the meltblown layer will be bulkier (i.e. thicker) than the outer low-linting layers.
  • the total thickness of the wiper will generally be in the range 0.3 to 7 mm, preferably 0.5 to 1.5 mm.
  • the absorbency of the meltblown layer may be increased by modifying the manufacturing process to incorporate a hydraulic entangling step as described in US Patent No. 4950531.
  • the meltblown layer may also be made by the applicant's "Coform” process described in US Patent Nos. 4100324 and 5350624.
  • a thermoplastic e.g. polypropylene polymer is melted and liquefied and extruded through small volume die tips and attenuated under angled air flow as in analogous meltblown processes.
  • staple fibre or pulp may be separated in a picker and blown towards the extruded polymer such that the polymer becomes an intimate mixture of pulp or staple fibres and polymer.
  • the meltblown layer is treated or coated with a surfactant during extrusion in order to improve its wettability.
  • a surfactant is well known and include a wide variety of ionic and non-ionic surfactants, e.g. dioctylesters of sodium sulfosuccinic acids (e.g. Aerosol OT) , isooctyl phenylpolyethoxy ethanols (e.g. Triton X-100 and X-102) etc.
  • the surfactant may comprise from 0.1 to 10% by weight of the meltblown layer.
  • meltblown layer could itself comprise more than one layer, e.g. two layers, each having different absorption properties.
  • the outer low-linting layers may be made from the same or different polymers. Preferably, these will be made from the same polymer having similar melt temperatures. As mentioned above, it is preferable that at least one of the outer sandwiching layers is a bonded carded web layer. Although it is envisaged that the meltblown layer could be sandwiched between two or more layers, preferably this will be provided between two low-linting layers.
  • the second outer layer may comprise a bonded carded web layer or a spun-bonded layer.
  • an outer spun-bonded layer often imparts a slippery feel to the product and the product lacks tactile properties, it is preferred that both outer sandwiching layers should comprise a bonded carded web.
  • Spun-bonded materials are produced by extruding thermoplastic polymer through a spinneret to form continuous fibres and then drawing and laying the fibres to form a random web.
  • Bonded carded web fibres are produced by combing out a blend of natural and/or synthetic staple fibres of discrete fibre lengths to form a more or less unidirectionally orientated web.
  • the outer bonded carded web layer comprises a natural or synthetic polymer or fibre in addition to a polyolefin then it is preferred that the polyolefin is present in at least 50% by weight of the outer layer, preferably 80% by weight.
  • a preferred bonded carded web outer layer comprises 80% by weight polypropylene and 20% by weight of rayon.
  • the polyolefin is preferably polypropylene or a mixture of polypropylene and polyethylene.
  • an outer layer is a spun-bonded layer
  • natural or synthetic polymers or fibres are not normally added in addition to the polyolefin.
  • Any spun- bonded layer will preferably consist entirely of polyolefin.
  • Preferred polyolefins include C 2 ..- 10 polyolefins or ⁇ copolymers thereof, especially polyethylene and most especially polypropylene.
  • the fibres therein should be approximately 10 to 50 microns in diameter and 10 to 100 mm, especially 30 to
  • the outer layer is a spun-bonded layer
  • the fibres of the spun-bonded layer should preferably be between 5 to 25 microns in diameter although fibres of other diameters could be employed.
  • the outer layer should be low-linting, preferably non-linting, non-abrasive and add strength to the wiper. It should also give rise to a wiper which has a soft, pleasant feel, which is tactile and which may also aid in the absorption of liquid into the wiper. As mentioned above, a high bulk meltblown layer tends to reduce the strength of the meltblown layer.
  • the outer layers are intended to counteract this potential loss in strength.
  • a bonded carded web outer layer gives rise to a product having high tensile strength, in particular in the machine direction (MD) .
  • Each outer layer may have substantially the same thickness or alternatively may be of different thicknesses.
  • Each outer layer will preferably have a dry thickness in the range of 0.1 to 2 mm, preferably 0.2 to 0.8 mm.
  • the two outer layers will generally comprise 30 to 50% by weight of the product and 30 to 50% by thickness.
  • the outer layer may also be treated with a surfactant for wettability. Suitable surfactants include those described in relation to the meltblown layer. Typically, these will be ionic or non-ionic surfactants, e.g. Aerosol OT, Triton X-100 and X-102 etc.
  • the web comprises a thermoplastic component as one of the staple fibres, e.g. polyolefin, which allows thermal bonding to be achieved either all over the web or at discrete points.
  • the basis weight of the bonded carded web layer is preferably 10 to 30 g/m 2 , especially 15 to 20 g/m 2 .
  • Spun-bonded outer layers are generally manufactured from low MFR polypropylene which may give rise to a slippery hydrophobic feel on the wiper surface.
  • the ratio of meltblown layer to outer layers will be readily determined by the person skilled in the art.
  • the outer layer comprises between 20 to 60%, especially 30 to 45% by weight of the wiper weight.
  • the stiffness in the machine direction of the wiper is 1 to 8, especially 3 to 5 measured according to the Shirley Institute Stiffness test method.
  • the stiffness in the cross direction of the wiper is preferably 1 to 8, especially 2 to 4 measured according to the Shirley test mentioned above.
  • the wiper may have a water absorbency capacity of 200 to 600%, preferably 350 to 450% by weight and oil absorbency of 300 to 800%, preferably 500 to 650% by weight .
  • the outer and meltblown layers of the product are preferably laminated together by a patterned application of heat and pressure, i.e. by thermal bonding, or by ultrasonic bonding.
  • a patterned application of heat and pressure i.e. by thermal bonding, or by ultrasonic bonding.
  • Such embossing or pattern bonding processes are well known to those skilled in the art.
  • pattern bonding may be carried out by a process substantially as described in any of US Design Patent Nos. 264,512, 239,566 and US Patent No. 3, 855, 046.
  • Suitable embossing/pattern bonding conditions will depend on the specific nature of the wiper, but in general a bond pattern of approximately 2 to 50 pins/cm 2 (pin heads 0.018 cm 2 ) giving approximately 4 to 20 bonds/cm 2 for a coverage of 5 to 25% of the wiper surface area may be used.
  • Ultrasonic bonding may be employed to bond materials which are difficult to bond thermally.
  • the wiper is provided with a number of holes or apertures to improve absorbency. These may constitute between 1 and 40%, preferably 1 to 30% of the area of the wiper and may penetrate only the outer layer, may partially penetrate both the outer and meltblown layer or may penetrate through the entire width of the wiper. Normally, the apertures or perforations will penetrate through the wiper. The apertures aid in picking up small particles.
  • the apertures are conveniently introduced at the embossing stage and may be formed using the process described in European Patent Publication No. 080383. A process for forming the wiper of the present invention will now be described although this process is of course one of a variety of processes suitable for wiper preparation.
  • meltblowing die (1) deposits microfibres onto inclined moving outer layer (2) coming from feeder roll (3) .
  • the outer layer (2) is supported on inclined wire (4) , the wire being supported by rollers (5) which may be driven by conventional means.
  • Surfactant spraying (not shown) may occur at this point.
  • Outer layer (6) from feeder roll (7) is laid on top of meltblown layer (8) via turning roller (9) .
  • the combination is bonded by heat and pressure at embossing point (10) between a patterned roller (11) and roller (12) .
  • roller (12) comprises tiny pins and rotates slightly faster than patterned roller (11) hence introducing tiny holes into the laminate.
  • Laminate (13) is rolled into a parent roll (14) which may be slit into component wipers as required (not shown) .
  • the wiper laminate of the invention may be further treated with standard chemicals such as flame retardant finishes, antistatic agents, fragrances etc.
  • An adhesive should preferably be present in the meltblown layer since this will aid binding to the outer layers and further serve to prevent linting.
  • the wiper in accordance with the invention may be used for a variety of industrial and consumer applications, including those in the automotive and electrical industries as well as for general purpose wiping.
  • the wiper is particularly useful for mopping up oils, solvents and water and may be used in smooth and critical surface wiping, and in wiping industrial machines, machine parts and tools.
  • the wipers of the invention may be re-usable or disposable although where the wiper is employed to mop up oil or solvent, it is preferred that the wiper is simply thrown away after use. Where the wiper is used to mop up water, the wiper may be rinsed, dried and re-used. In this regard, a laminate having two bonded carded web outer layers has a greater ability to reabsorb liquid after having been used and wrung out .
  • Figure 1 shows an apparatus for the manufacture of a wiper in accordance with the invention.
  • Figure 2 shows a representation of a wiper of the invention.
  • Figures 3 and 4 illustrate the results of lint tests carried out on products in accordance with the invention and conventional meltblown materials.
  • Example 1
  • Raw materials used were polypropylene (400 MFR) sourced from Borealis (520 ML) .
  • Bonded carded web at a basis weight of 16 g/m 2 was supplied by Lohmann and was composed of 100% polypropylene staple fibre at a denier of 2.2 and a fibre length of 40 mm.
  • the bonded carded web was thermally point bonded.
  • the structure was made by unwinding one layer of bonded carded web onto a wire where the extruded meltblown was then laid directly onto the bonded carded web.
  • the process conditions for the meltblown being such that high bulk and absorbency were attained at a throughput of e.g. 15PIH and forming height of 17 inches from the forming wire.
  • the line speed was adjusted to attain a basis weight of the meltblown layer of 50 g/m 2 .
  • layer 3 also of bonded carded web was unwound and the 3 layered structure entered the embossing station where patterned pin and smooth anvil rollers point bonded the layers to produce a laminated structure with good bulk, absorbency, softness and lint parameters.
  • the combination had a basis weight of 82g/m 2 and had properties as follows.
  • the "SMS" wiper contains an inner meltblown layer sandwiched between two spun- bonded layers.
  • the basis weight of the spun-bonded layers is 15 g/m 2
  • the basis weight of the meltblown layer is 50 g/m 2
  • the basis weight of the laminate is 80 g/m .
  • the "BMB” wiper contains an inner meltblown layer sandwiched between two bonded carded web layers .
  • the bonded carded web layers comprise 80% polypropylene (denier 2.2, length 40 mm and 20% rayon (denier 1.7, length 40 mm) .
  • the basis weight of the bonded carded web layers is 16 g/m 2
  • the basis weight of the meltblown layer is 50 g/m 2
  • the basis weight of the laminate is 82 g/m 2 .
  • Sample strips of constant length and width are cut and held vertically in a water bath for a fixed length of time (15 or 45 seconds) .
  • the level the water has reached up the strip at that time is measured from the water surface .
  • the "BMB” laminate has a higher water vertical wickability than the "SMS” laminate.
  • Mop Up capacity is a measure of the ability of the laminate to reabsorb liquid after having been used and wrung out. Higher values indicate more capacity for reabsorption . Saturated samples, in oil or water, are drained on porous felts to remove excess liquid and then folded and twisted 180° to displace excess liquid. The difference in weight between the saturated and twisted sample is the weight available for re-absorption of liquid. In Table 3 this weight is expressed as a percentage of the dry weight of the laminate.
  • BMB laminates show a greater capacity for reabsorption .
  • BCW Bonded Carded Web
  • 'BMB' Bonded Carded Web
  • ' BMS ' BCW/meltblown/spunbond
  • BMS Roll 20 Lohmann BCW/50 gsm meltblown/Corovin spunbond
  • BMB Roll 23 Litovel BCW/50 gsm meltblown/Litovel BCW
  • BMS Roll 25 Litovel BCW/50 gsm meltblown/Corovin spunbond
  • the properties of the 3 -layer wiper samples in accordance with the invention were compared to Kimtex Plus and Kimtex Classic (these are single layer 100% polypropylene meltblown products with differing basis weights available from Kimberly-Clark Corporation, USA) .
  • the basis weight of the different 3 -layer wiper samples varied from 85 to 92 gsm.
  • the 3 -layer wiper samples had a similar basis weight to Kimtex Classic.
  • a GELBO lint test was carried out according to the test method described in the Institue of Environmental Science IES-RP-CC004.2. The samples were ordered in lint performance, from best to worst: Roll 25 BMS; Roll 23 BMB; Roll 20 BMS; Kimtex Classic; Kimtex Plus.
  • the 3 -layer wiper samples had the same Canadian crush as Kimtex Classic.
  • Kimtex Plus had a Canadian crush value 27% higher than the other samples.
  • Taber abrasion This test determines the resistance of nonwoven articles to pressure and abrasion. The test was carried out using a Taber abrader according to Method 5306 Federal Test Method Standard No. 191. A. Taber abrasion depends on the basis weight of the sample. It was expected that the higher the basis weight the more revolutions are required to damage the sample.
  • Kimtex Plus being the heaviest product had the highest resistance to abrasion. Kimtex Plus had 18% higher taber abrasion than the 3 -layer wiper samples. However, the 3 -layer wiper samples had on average 45% higher taber abrasion than Kimtex Classic.
  • the 3 -layer wiper had a higher resistance to abrasion than a meltblown wiper.
  • All 3 -layer wiper samples were at least twice as strong in the machine direction (MD) than the Kimtex Plus and Classic samples. This improvement in strength was due to MD alignment of the BCW fibres.
  • BMS samples had higher cross direction (CD) strength than BMB or Kimtex samples because the spunbond had a higher CD strength than BCW and meltblown samples.
  • 3-layer wiper samples had better lint, taber abrasion, tensile strength, water and oil capacities and water and oil rates properties than Kimtex Classic. Canadian crush was the only property that was the same for 3-layer wipers and Kimtex Classic .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Abstract

Cette invention se rapporte à un torchon en non-tissé, qui comprend une couche de microfibre thermoplastique de fusion-soufflage, prise en sandwich entre deux couches extérieures poreuses à faible peluchage, au moins l'une de ces couches extérieures étant formée par une bande cardée liée. Un tel torchon est utilisable pour le nettoyage de surfaces et/ou de pièces.
PCT/GB2000/000808 1999-03-05 2000-03-06 Torchon WO2000053835A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU29285/00A AU2928500A (en) 1999-03-05 2000-03-06 Wiper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9905159.1 1999-03-05
GBGB9905159.1A GB9905159D0 (en) 1999-03-05 1999-03-05 Wiper

Publications (1)

Publication Number Publication Date
WO2000053835A1 true WO2000053835A1 (fr) 2000-09-14

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AU (1) AU2928500A (fr)
GB (1) GB9905159D0 (fr)
WO (1) WO2000053835A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003070004A1 (fr) * 2002-02-15 2003-08-28 William Hoge Consulting Tampon de nettoyage antimicrobien comprenant de l'argent metallique comme agent oligodynamique
US20090270824A1 (en) * 2008-04-28 2009-10-29 Precision Fabrics Group, Inc. Surgical towels with reduced lint particle generation

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US4906513A (en) * 1988-10-03 1990-03-06 Kimberly-Clark Corporation Nonwoven wiper laminate
US5080951A (en) * 1989-08-03 1992-01-14 Guthrie David W Nonwoven fabric
EP0472992A1 (fr) * 1990-08-10 1992-03-04 Kimberly-Clark Corporation Chiffon non-tissé et procédé pour sa réalisation
US5169712A (en) * 1991-08-23 1992-12-08 Amoco Corporation Porous film composites
US5229191A (en) * 1991-11-20 1993-07-20 Fiberweb North America, Inc. Composite nonwoven fabrics and method of making same
US5415925A (en) * 1992-06-10 1995-05-16 Fiberweb North America, Inc. Gamma structure composite nonwoven fabric comprising at least two nonwoven webs adhesively bonded by a lightweight adhesive web
EP0754796A1 (fr) * 1995-06-07 1997-01-22 Fiberweb North America, Inc. Etoffes non-tissées statifiées et procédé pour la production
WO1998003713A1 (fr) * 1996-07-24 1998-01-29 Kimberly-Clark Worldwide, Inc. Chiffons humides d'une plus grande douceur
WO1998055295A1 (fr) * 1997-06-05 1998-12-10 Bba Nonwovens Simpsonville, Inc. Composite de grande resistance pour nettoyage de bebe

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4906513A (en) * 1988-10-03 1990-03-06 Kimberly-Clark Corporation Nonwoven wiper laminate
US5080951A (en) * 1989-08-03 1992-01-14 Guthrie David W Nonwoven fabric
EP0472992A1 (fr) * 1990-08-10 1992-03-04 Kimberly-Clark Corporation Chiffon non-tissé et procédé pour sa réalisation
US5169712A (en) * 1991-08-23 1992-12-08 Amoco Corporation Porous film composites
US5229191A (en) * 1991-11-20 1993-07-20 Fiberweb North America, Inc. Composite nonwoven fabrics and method of making same
US5415925A (en) * 1992-06-10 1995-05-16 Fiberweb North America, Inc. Gamma structure composite nonwoven fabric comprising at least two nonwoven webs adhesively bonded by a lightweight adhesive web
EP0754796A1 (fr) * 1995-06-07 1997-01-22 Fiberweb North America, Inc. Etoffes non-tissées statifiées et procédé pour la production
WO1998003713A1 (fr) * 1996-07-24 1998-01-29 Kimberly-Clark Worldwide, Inc. Chiffons humides d'une plus grande douceur
WO1998055295A1 (fr) * 1997-06-05 1998-12-10 Bba Nonwovens Simpsonville, Inc. Composite de grande resistance pour nettoyage de bebe

Cited By (3)

* Cited by examiner, † Cited by third party
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WO2003070004A1 (fr) * 2002-02-15 2003-08-28 William Hoge Consulting Tampon de nettoyage antimicrobien comprenant de l'argent metallique comme agent oligodynamique
US20090270824A1 (en) * 2008-04-28 2009-10-29 Precision Fabrics Group, Inc. Surgical towels with reduced lint particle generation
US9913762B2 (en) 2008-04-28 2018-03-13 Precision Fabrics Group, Inc. Surgical towels with reduced lint particle generation

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GB9905159D0 (en) 1999-04-28
AU2928500A (en) 2000-09-28

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