CN1886084A

CN1886084A - Disposable, nonwoven cleaning wipes, and kits comprising them

Info

Publication number: CN1886084A
Application number: CNA2004800355484A
Authority: CN
Inventors: K·R·林德; J·J·鲍威尔; N·J·罗杰斯; N·J·波利茨焦; C·M·库尔彦; A·B·詹姆斯
Original assignee: Procter and Gamble Ltd
Current assignee: Procter and Gamble Ltd; Procter and Gamble Co
Priority date: 2003-12-03
Filing date: 2004-12-02
Publication date: 2006-12-27
Also published as: CA2548178A1; WO2005055797A1; CA2548178C; US20050120497A1; EP1696778A1; JP2007516027A

Abstract

The present invention relates to a disposable wipe (10) for cleaning hard surfaces, comprising a cleaning substrate (20) comprising a nonwoven material, the cleaning substrate having a longitudinal axis (x), an upper surface and a lower surface; and at least one attachment means (30); wherein said at least one attachment means is a pocket (30) formed on the upper surface or the lower surface of said cleaning substrate, said pocket covering from about 2% to about 90% of the surface area of said upper surface, and having at least one opening (40). There is also provided a kit comprising the disposable cleaning wipe; and a cleaning implement (60) comprising a mop head (61).

Description

Disposable, nonwoven cleaning wipes and comprise their external member

Technical field

The present invention relates to be applicable to the nonwoven cleaning wipes field of burnisher, to be used for cleaning hard surfaces, is floor, sink, bathtub, shower wall, glass, surface, kitchen, automobile etc. specifically.

Background of invention

Document about the cleaning wipe of cleaning hard surfaces is arranged a lot.Cleaning wipe is as weaving or the existence of non-woven material cleaning piece.Cleaning wipe has various ways, and for example be used for cleaning foil, the pre-wetting cleaning piece of dry dedusting or be used for the absorbability cleaning wipe of moistening cleaning, and as disposable wipe or reusable cleaning piece and exist.The described cleaning wipe in this area typically is rectangular shape.Can perhaps use the hand wiping by finishing clean up task, perhaps utilize cleaning wipe to be detachably connected to burnisher on it with the cleaning wipe wipe surfaces.

In recent years, use the cleaning wipe with the burnisher that comprises elongate shaft portion to become very universal, described elongate shaft portion is rotatably connected on the mophead by universal joint.An embodiment of this type of instrument is SWIFFER ^Burnisher.The mophead of these instruments typically comprises by universal joint and is connected to the rigid support plate of mophead and downside that is positioned at rigid support plate and towards " buffer " or " mat " on surface to be cleaned.For the clean surface, the user at first is connected to cleaning wipe the downside of cushion pad, and by the edge that promotes cleaning piece cleaning piece is detachably connected to the narrow slit structure that is positioned at the gripper shoe top surface, wipe surfaces then.

The rigidity mophead of this type of burnisher typically is rectangular shape, so the cleaning piece of rectangle can be easily and be connected to safely on this mophead.The instrument that comprises this type of mophead typically is used to clean the plane.

Yet the burnisher of existence also comprises the mophead of non-rectangle.In this case, because the mophead of can not suitably fitting, the rectangle cleaning piece is difficult to be connected on the mophead, and is difficult to be kept by mophead.In addition, also there is the burnisher that comprises deformable mophead.This type of burnisher is suitable for cleaning curved surface, for example bathtub or sink.If how the mophead deformable has then aggravated easily and has connected safely and keep the problem of rectangle cleaning piece.

The parts that cleaning wipe is connected on the burnisher mophead are known.As mentioned above, mophead can comprise the cleaning piece edge is pushed narrow slit structure (being typically called " clip " in this area) in it.Be used for other parts that cleaning piece is fixed to mophead are comprised that suspension hook or cover and-loop fastener are (as Velcro ^), clamping device, outstanding, clip, adhesive or their any combination.At least a portion of these attaching parts is positioned on the mophead.

Attaching parts also can be positioned on the cleaning piece separately.For example, in reusable, washable cleaning cloth (cloth of the promptly weaving) field of weaving, the cloth of existence comprises that mophead can insert two pockets in it.In particular cases this, mophead is made up of two rigid elements, and they can pivot along axis, to allow the user rigidity mophead is inserted in two pockets.In case insert, the user need be pushed into mophead ground to form the plane mophead and these two parts are locked in the plan-position.This locking system also can become as time goes by and not be durable, make cloth again can not with mophead secure fit, and the mophead that when it lifts from the surface, also might slip away.The cleaning piece of these types is connected to comprises that the gripper shoe made by a slice and/or the mophead of cushion pad are not obvious, even when the buffer board deformable.In addition, as time goes by, the cloth of these types is dirty and lose its sanitary characteristics.

In addition, the cleaning piece that is impregnated with Cleasing compositions is recently just becoming more and more universal.When impregnated cleaning piece was connected on the mophead, for health and security consideration, expectation reduced and to come in contact with user's skin and being connected of improvement and mophead.

Therefore, a target of the present invention provides the nonwoven cleaning wipes that can be connected in convenient and healthy mode on the burnisher.Another target of the present invention provides the nonwoven cleaning wipes that can be connected to better more firmly on the instrument that especially comprises deformable and/or non-rectangle mophead (being oval specifically and eye shape mophead) on the burnisher.Another target of the present invention provides the clean-up performance with improvement, the nonwoven cleaning wipes that is particularly useful for cleaning in the corner.Another target of the present invention provides the nonwoven cleaning wipes that can remove from burnisher convenient and healthyly.

Summary of the invention

The present invention relates to a kind of disposable wipe of cleaning hard surfaces, described cleaning piece comprises:

-comprising the cleaning substrate of non-woven material, described cleaning substrate has longitudinal axis, upper surface and lower surface; With

-at least one attaching parts;

It is characterized in that described at least one attaching parts are the pockets that form on described cleaning substrate upper surface or lower surface, described pocket cover described upper surface or lower surface surface area about 2% to about 90%, and have at least one opening.

According to another aspect of the present invention, provide to comprise burnisher that contains mophead and the external member that is used for the disposable wipe of cleaning hard surfaces, described external member comprises:

-at least one attaching parts;

According to another aspect of the present invention, a kind of method of cleaning hard surfaces is provided, described method comprises that described cleaning wipe comprises with the step on the described surface of disposable cleaning cleaning piece wiping:

-at least one attaching parts;

Summary of drawings

Fig. 1 is the perspective view with preferred cleaning wipe of half shape pocket.

Fig. 2 is the downside figure with preferred cleaning wipe of half shape pocket.

Fig. 3 is the top view with another preferred cleaning wipe of fundamental triangle pocket.

Fig. 4 has the top view that opening is positioned at another preferred cleaning wipe of the pocket on the longitudinal axis.

Fig. 5 a and 5b are perspective view and the side views that periphery has bonding continuously preferred cleaning wipe.

Fig. 6 is the perspective view that periphery has discontinuous bonding preferred cleaning wipe.

Fig. 7 has a perspective view of the preferred cleaning wipe of shape absorbed layer.

Fig. 8 is the top view of another embodiment of cleaning wipe of the present invention.

Fig. 9 is the top view of the alternative cleaning wipe of the present invention.

Figure 10 is the perspective view of preferred burnisher.

Detailed Description Of The Invention

Definition

Except as otherwise noted, all ratios and percentage number average are by weight.

Term used herein " x-y dimension " refers to be orthogonal to the flat of cleaning wipe or its component thickness Face. Length and the width of the x peacekeeping y dimension corresponding cleaning wipe of difference or cleaning piece parts. Usually, Unite when using when cleaning wipe and burnisher, it will preferably be parallel to the x of cleaning piece Motion (referring to Fig. 1) on the direction of dimension (or length).

Term used herein " z dimension " refers to be orthogonal to the length of cleaning wipe of the present invention or its parts The dimension of degree and width. Therefore z tie up corresponding cleaning wipe or cleaning piece parts thickness (referring to Fig. 1).

" longitudinal axis " of cleaning substrate used herein refer to along the axis of cleaning substrate length, It is the x axle.

Term used herein " layer " refers to member or the parts of cleaning wipe, its key dimension X-y, namely along its length and width. Should understand, term " layer " might not be limited to list The material of layer or monolithic. Therefore, layer can comprise several requisite material type thin slices or fibre Laminated material or the combination of dimension net. Therefore, term " layer " comprises term " multilayer " and " divides Layer ". For the purpose of the present invention, cleaning wipe " on " layer be apart from surface to be cleaned relative Layer far away. On the contrary, term D score layer refers to relatively near clear in distance surface to be cleaned The layer of clean cleaning piece.

" upper surface " used herein is distance surface relatively far away, surface to be cleaned. Work as cleaning When substrate was multilayer, " upper surface " referred to the upper surface on this cleaning substrate upper strata. On the contrary, art Language " lower surface " refers to distance relatively near surface, surface to be cleaned. Usually, " lower surface " Contact surface to be cleaned. When the cleaning substrate was multilayer, " lower surface " referred to this cleaning substrate The lower surface of lower floor.

" shape " used herein refers to the shape that tie up at x-y cleaning wipe or cleaning wipe part Shape, that is, and when watching from the top.

" eye shape " used herein refers to have the basic elliptical shape of two jags, and be described prominent Going out end is positioned on the x axle of basic elliptical shape. So-called " half elliptic " and " half shape " divides Do not refer to half or half the part of basic ellipse or eye shape.

The disposable cleaning cleaning piece

Disposable cleaning cleaning piece (10) comprises for cleaning hard surfaces as described in the present invention Cleaning substrate (20) and at least one are suitable for this cleaning piece is connected to the connecting portion of burnisher Part.

Cleaning wipe of the present invention (10) is disposable. So-called term " disposable " refers to Cleaning piece is designed to the single clean up task, or minority clean up task just, then preferred quilt Discard.

Cleaning substrate of the present invention (20), preferred whole cleaning wipe (10) is made up of non woven fibre or paper.The term non-woven material defines according to the common definition that " Nonwoven Fabrics Handbook " (being published by Association of the Nonwoven Fabric Industry) provides.The paper substrate is defined as the substrate that comprises by mass greater than 50% following fiber content by EDANA (note 1 of ISO9092-EN29092), and described fiber, is more preferably also had less than 0.040g/cm greater than 300 by L/D ratio ³The fiber of density (not comprising the chemical digestion string) is formed.For clarity sake, the definition of nonwoven substrate and paper substrate does not all comprise weaven goods or cloth or sponge.

The cleaning substrate (20) be preferably water and moisture hard surface cleaning composition can partly permeate or all the infiltration.Cleaning piece is preferably pliable and tough, even more preferably cleaning piece also is springy, in case mean and remove the external pressure that applies, cleaning piece can recover its original shapes.

Cleaning substrate (20) can comprise naturally occurring fiber (modification or unmodified) and the synthetic fiber of making.Natural fiber comprises that all are without modification, regeneration or manually produce and natural that obtain and result from those of plant, animal, insect or plant, animal and insect accessory substance.Suitable unmodified/modified natural exists the embodiment of fiber to comprise cotton, Spanish grass (Esparto), bagasse, common and braid wool, flax, silk, wool, wood pulp, chemical modification wood pulp, jute, ethyl cellulose, cellulose acetate, and their combination." synthesizing " used herein is meant that these materials are mainly available from various artificial materials or the natural material of further modifying.The limiting examples that is used for synthetic material of the present invention comprises those that are selected from acetate fiber, acrylic fiber, cellulose ester fiber, modacrylic fiber, Fypro, polyester fiber, polyolefine fiber, vinal, rayon fiber and their combination.Appropriate synthetic materials embodiment comprises acrylic acid, for example Acrilan, Creslan and based on fiber, the Orlon of acrylonitrile; Cellulose ester fiber is cellulose acetate, A Nier and A Xier acetate fiber for example; Polyamide is nylon (as nylon 6, nylon 66, NYLON610 etc.) for example; Polyester is fortrel, Ke Daier and pet fiber, polybutylene terephthalate (PBT) fiber, terylene for example; Polyolefin is polypropylene, polyethylene for example; Polyvinyl acetate ester fiber and their combination.Fiber that these and other is suitable and non-woven material prepared therefrom are generally described in the following document: " the Nonwoven Bonding Method and Materials " of Riedel, NonwovenWorld (1987); The Encyclopedia Americana, the 147th to 153 page of the 11st volume and the 566th to 581 page (1984) of the 26th volume.Appropriate synthetic materials can comprise the solid one pack system (promptly, the chemistry same sex) fiber, multi-constituent fibre are (promptly, every kind of fiber is made of more than one material) (promptly comprise the filament types that two or more are different with multicomponent fibre, and these long filaments are intertwined and form the synthetic fibers of big fiber), and their combination.For example, bicomponent fibre can have core/sheath geometry or configuration arranged side by side.Under any situation, cleaning substrate (20) can comprise the combination of the fiber that contains top listed material, comprises that perhaps they itself comprise the fiber of the combination of top listed material.Under any circumstance, for configuration arranged side by side, core/sheath geometry or solid one pack system configuration, the fiber of cleaning substrate (20) can show to have spiral or spiral or curled configuration, and is especially true for the bicomponent type fiber.Be used for suitable bicomponent fibre of the present invention and can comprise skin/core fibre: polyethylene/polypropylene, poly-ethyl vinyl acetate/polypropylene, polyethylene/polyester, polypropylene/polyester, copolyesters/polyester etc. with following combination of polymers.The especially suitable bi-component thermoplastic fibre that can be used for this paper is to have polypropylene or polyester core, and more low-melting copolyesters, poly-ethyl vinyl acetate or polyethylene sheath those (for example available from Danaklon a/s and Chisso Corp. those).These bicomponent fibres can be concentric or eccentric.Term used herein " with one heart " and " off-centre " are meant whether skin has uniform or uneven thickness in the transverse cross-sectional area that runs through bicomponent fibre.When lower fiber thickness provided bigger compressive strength, eccentric bicomponent fibers was necessary.Preferred bicomponent fibre comprises the copolyalkenamer bicomponent fibre, and this fiber comprises the core that is less than about 81% PETG and is less than the skin of about 51% copolyalkenamer.This type of preferred bicomponent fibre by the Hoechst Celanese Corporation that is positioned at NewJersey with trade name CELBOND ^T-255 sells.The amount of bicomponent fibre preferably changes according to the density of its material therefor.

The method for preparing non-woven material is well known in the art.These non-woven materials generally can make by air lay method, wet-laying method, meltblown, common forming process, spun-bond process or carded method, wherein at first fiber or long filament are cut into Len req from the long filament bar, feed in current or the air-flow, be deposited on then on the screen cloth of the gas that carries fiber or current warp.With its preparation method or form irrelevantly, the gained layer experiences at least a in several bonding operations subsequently, forms the self-sustaining substrate together so that single fiber is anchored on.In the present invention, nonwoven substrate can prepare by several different methods, includes, but are not limited to that gas entanglement method, water entanglement method, thermojunction are legal, carded method, needle point method or any other method known in the art, and the combination of these methods.Yet, also nonwoven substrate can be described as thermoplastic molding's film.

That preferred nonwoven substrate material has quantitatively is about 15gm ^-2To about 220gm ^-2, 15gm more preferably from about ^-2To about 200gm ^-2, even 15gm more preferably from about ^-2To about 110gm ^-2, 15gm most preferably from about ^-2To about 78gm ^-2

Except being used to prepare the fiber of substrate, substrate also can comprise other component or the material that adds on it known in the art, comprises the adhesive of appointment.Any medium of the fiber that is used for interlocking described in term used herein " adhesive ".This type of medium comprises wet-strength resins and dry strength resin.Adding known in the art is that the chemical substance of wet-strength resins is normally necessary, especially for cellulosic-based material.Comprehensive academic dissertation about the wet-strength resins type that adopts in the paper field is found in TAPPI Monograph Series No.29, Wet Strength inpaper and Paperboard, Technical Association of the Pulp and PaperIndustry (New York, 1965).Except wet strength additives, also be necessary to comprise some dry strength additive known in the art and velveteen control additive such as amylum adhesive.The preferred adhesive that is used for the bonded nonwoven material is a polymer adhesive, preferred latex adhesive, more preferably water-based latex adhesive.Can adhesive be administered on the substrate by any method known in the art.Suitable method comprises injection, printing (as flexographic printing), coating (as intaglio printing coating or submerged coating), filler, foaming, floods, soaks into and further extrude (adhesive is forced through pipeline thus and contacts bottoms stream piping simultaneously with substrate), or the combination of these application techniques.

Cleaning piece of the present invention can be used for for example dry dedusting of hard surface, but preferred and Cleasing compositions is united use with the moisturizing cleansing hard surface, for example floor, sink, bathtub, shower wall, glass, surface, kitchen, automobile etc.Therefore, cleaning wipe of the present invention (10) can exist in a variety of forms, for example dry dedusting cleaning piece, the drying that is used for moisturizing cleansing absorb cleaning wipe (10) and (wherein at first Cleasing compositions are applied to the surface, use the cleaning piece wiping should the surface then), pre-wetting cleaning piece or be used for the cleaning wipe (10) of the contact drying of moisturizing cleansing, it comprises for example Cleasing compositions of concentrated solution, paste or gel form, and it need contact and be activated with water.

The cleaning substrate

Cleaning substrate (20) can be individual layer, but is preferably multilayer.Cleaning substrate (20) has longitudinal axis (being the x axle), and comprises upper surface and lower surface.

Cleaning substrate (20) can have multiple shape, includes, but not limited to rectangle, ellipse, eye shape or even more complicated shape.Preferably, cleaning substrate (20) has non-rectangular shape.In a highly preferred embodiment, cleaning substrate (20) has the side (22 by two longitudinal extensions, 23) be connected to the forward position (21) of back along (24), wherein forward position (21) are curved, circle, corrugated, dihedral, or their combination, and preferably have half shape, basic half elliptic, fundamental triangle, or their combination.Preferably, the cleaning substrate (20) forward position (21) have jag be positioned at the cleaning substrate (20) longitudinal axis (being the x axle) on half shape.In another highly preferred embodiment, cleaning substrate (20) is an eye shape.

The length-width ratio that cleaning substrate (20) preferably has is about 3: 1 to about 1.25: 1, more preferably from about 2: 1 to about 1.5: 1.Most preferably, length-width ratio is about 1.75: 1.

Cleaning substrate (20) is preferably multilayer, and comprises the upper and lower.These layers are bonded together to form integrative-structure.Can be bonding in many ways these layers include but not limited to that adhesive is bonding, thermal, ultrasonic bonding etc.Available hand or conventional linear transformation processing method known in the art are combined into cleaning substrate (20) with these layers.

When with adhesive with these layers when being bonded together, typically select adhesive to make and bondingly can in wet environment, keep its intensity, especially when cleaning wipe (10) is saturated by fluid and/or dirt by what this adhesive formed.When two absorbed layers (50) are bonded together, absorbed layer (50) and when articulamentum is bonded together or absorbed layer (50) and the permeable scrubbing layer of liquid are bonded together, the selection of adhesive is even more important.In this case, typically select adhesive to make this adhesive provide and have the bonding of high waterproof, for example, the bonding confining force that has be the dry adhesive intensity level at least about 30%, preferably at least about 50%, more preferably at least about 70%.The bonding strength value can be measured according to ASTM D1876-95 (1995) (T-Peel Test) standard method that part is revised, and it is described in detail in the United States Patent (USP) of announcing on October 19th, 1999 of authorizing Corzani 5,969,025.Can be used for adhesive of the present invention and comprise vinyl emulsion (comprise based on vinyl acetate or other vinyl esters those and scope for having the homopolymers of ethene and/or acrylic monomers (ethylene acrylic)) to copolymer; Can be the acrylic emulsion of homopolymers or copolymer; Comprise by comprising reaction comonomer (monomer that for example comprises functional groups such as carboxyl, hydroxyl, epoxy radicals, acid amides, isocyanates) or by with outside cross-linking agent (for example urea formaldehyde resin, isocyanates, polyalcohol, epoxides, amine and slaine, especially zinc salt) reaction and those the cross-linked binder that generates, described comonomer can cross-linked polymer itself (for example, carboxyl and hydroxyl, epoxy radicals or isocyanate group reaction).This paper adhesive can comprise that also limited amount tackifying resin to improve adhesiveness, for example adds the rosin ester tackifier of hydrogenation in vinyl acetate/ethylene copolymer latex.Other suitable water binder composition comprises those disclosed in the United States Patent (USP) of announcing on October 19th, 1999 of authorizing Corzani 5,969,025.

When cleaning substrate (20) when be multilayer, also can continuous or discontinuous mode bonding at periphery with different layers.Bonding at periphery may be the sole mode that different layers is bonded together, but preferably except described other adhesion mechanism of the application.This means and at first can adopt above-mentioned any method that some layers are held tightly together, then can be by only bonding and extra play is adhered on it to them at periphery.

In an especially preferred embodiment, cleaning substrate (20) comprises fluffy resilient substrate, more preferably cotton-wool substrate.According to TAPPI Association of the NonwovenFabrics Industry, cotton-wool is defined as the fiber of soft big stacking volume.As indicated above, cotton-wool preferably includes synthetic material.So-called " cotton layer " also refers to have high fluffy, high resilience and low-density nonwoven structure at this paper.So-called " low-density " or fluffy resilient non-woven material are meant that at this paper the density of this layer is about 0.00005g/cm ³To about 0.1g/cm ³, preferably about 0.001g/cm ³To about 0.09g/cm ³, and thickness is at 0.775gms/cm ²(5gms/in ²) be down that about 0.1cm is to about 5.0cm.

In preferred embodiment as described in the present invention, cotton layer has at least about 1mm, and preferably about 2mm is to the fluffy degree of about 4mm.In another preferred embodiment as described in the present invention, the density of cotton layer is about 0.00005g/cm ³To about 0.1g/cm ³, preferably about 0.001g/cm ³To about 0.09g/cm ³

In a preferred embodiment, the part cotton fiber can be heat sealed or ultrasonic wave bonding.In an especially preferred embodiment, cleaning substrate (20) comprises the combination of homofil and bicomponent fibre.More particularly, cleaning substrate (20) preferably includes the bicomponent fibre of polyester homofil and polyester core, polyethylene sheath.

Cotton-wool also can comprise natural fiber.Suitable natural fiber as mentioned above.In addition, cotton fiber can be of different sizes, and promptly cotton fiber can comprise the fiber with different average thickness.And the cross section of fiber can be circle, plane, avette, oval or other shape.

Cleaning substrate of the present invention (20) preferably includes absorbed layer (50).Absorbed layer (50) comprises any material that can absorb and keep fluid between the operating period.It is preferred that absorbed layer (50) is clipped between upper strata and the lower floor.Typically, absorbed layer (50) comprises nonwoven material.Absorbed layer can include only naturally occurring fiber, includes only synthetic fibers, or the natural any compatible combination that has fiber and synthetic fibers.Can be used for fiber of the present invention and can be hydrophilicly, hydrophobic, perhaps can be the combination of hydrophilic fibers and hydrophobic fiber.Term used herein " hydrophilic " is used to refer to the wetting surface of aqueous fluid that can be deposited thereon.Hydrophily and wetability typically define according to the contact angle and the surface tension of the related fluid and the surface of solids.In the publication of the American Chemical Society that is entitled as " Contact angle, wettability and adhesion " (copyright 1964) that Robert F.Gould writes, this has been carried out detailed discussion.When the contact angle between fluid and surface during less than 90 °, perhaps when fluid is tending towards spontaneous surfacewise spreading out, we can say this surface by fluid wetting (being hydrophilic), these two kinds of conditions coexist usually.On the contrary, if contact angle greater than 90 ° and fluid can not be along the surface spontaneous spreading out, think that then this surface is " hydrophobic ".The concrete selection of hydrophilic fibers or hydrophobic fiber will be depended on other material that is included in cleaning substrate (20) for example different absorbed layers (50).In other words, the fiber person's character will make cleaning substrate (20) demonstration have necessary fluid delay and whole absorption of fluids.Be used for suitable hydrophilic fibers of the present invention and comprise cellulose fibre, modified cellulose fibre, artificial silk, polyester fiber such as hydrophilic nylon (HYDROFIL ^).Suitable hydrophilic fibers also can obtain by making the hydrophobic fiber hydrophiling, for example surfactant is handled or the thermoplastic fibre of silica-treated, and described thermoplastic fibre is derived from for example polyolefin such as polyethylene or polypropylene, polyacrylic acid, polyamide, polystyrene, polyurethane etc.Can by with surfactant for example nonionic or anionic surfactant treatment make the surface of hydrophobic fiber become hydrophilic, for example when the preparation thermoplastic fibre with the surfactant jet fiber, with fiber impregnation in surfactant or comprise the part of surfactant as molten polymer.When fusion with when solidifying, surfactant will be tending towards being retained in the surface of thermoplastic fibre again.Suitable surfactant comprises for example ICI Americas of non-ionic surface active agent, Inc., Wilmington, the Brij that Delaware makes ^76, and by Glyco Chemical, Inc., Greenwich, Connecticut is with Pegosperse ^The various surfactants that trade mark is sold.Except non-ionic surface active agent, also can use anion surfactant.These surfactants can be for example every square centimeter of about 0.2g of thermoplastic fibre be applied to thermoplastic fibre to the content of about 1g.

Suitable wood pulp fibers can for example sulfate process and sulphite process obtain by the chemical method of knowing.It is particularly preferred obtaining these wood pulp celluloses from southern softwood, because their premium absorbency characteristics.These wood pulp celluloses also can be obtained by mechanical means, for example wood fragments, defibrination machinery, heat machinery, chemical machinery and chemistry-Re machinery pulping method.Can utilize regeneration or the secondary wood pulp cellulose, and the bleaching with unbleached wood pulp cellulose.Can be used for another kind of hydrophilic fibers of the present invention is the chemicosolidifying cellulose fibre.Term used herein " chemicosolidifying cellulose fibre " is meant to harden by chemical method and is increased in the cellulose fibre of fiber stiffness under dry and the moisture two kinds of conditions.These class methods can comprise that interpolation for example applies and/or the chemical hardening agent of impregnation of fibers.These class methods also can comprise by changing chemical constitution, for example come sclerotic fiber by the cross-linked polymer chain.

Locate as absorbing structure (or its building block) at fiber, fiber can randomly make up with thermoplastic.During fusing, typically owing to interfibrous capillary pressure gradient, at least a portion of this thermoplastic is moved to the intersection of fiber.These intersections become the bond site of thermoplastic.During cooling, solidify formation at the thermoplastic of these intersections and fibre substrate or fleece are remained on together each bond site in the layer separately.This helps providing additional overall integrity to cleaning wipe (10).Among its multiple effect, in the total compression modulus and the intensity of the bonding increase gained heat bonding member of intersection of fibers.Under the situation of chemicosolidifying cellulose fibre, the fusion of thermoplastic and migration also have the effect that increases gained fleece average pore size, keep fibroreticulate density and quantitative as formed at first simultaneously.This can improve the fluid acquisition characteristic of heat-bondable fibre net when being exposed to fluid at first and when being exposed to fluid subsequently, being because the fluid permeability that improves at first, is because sclerotic fiber keeps the ability of its hardness and thermoplastic to remain adhered to the ability combination of intersection of fibers when wetting and during wet compression when wetting subsequently.In net, the heat-bondable fibre net of sclerotic fiber keeps its initial cumulative volume, but along with the volumetric region that is before occupied by thermoplastic becomes it is opened wide and has increased capillary aperture between average fiber.

Be used for thermoplastic of the present invention and can be any of various ways, comprise particle, fiber, or the combination of particle and fiber.Thermoplastic fibre is owing to the ability that it forms countless inter-fibre-bonds position becomes especially preferred form.Suitable thermoplastic can be made described fibrous every layer principal fiber net or matrix by any thermoplastic polymer of fusion under the temperature that can excessively not damage fiber.Preferably, the fusing point of this thermoplastic will be less than about 90 ℃, preferably between about 75 ℃ and about 175 ℃.Under any circumstance, the fusing point of this thermoplastic should be not less than the temperature that the heat bonding absorbing structure may be stored when being used to clean substrate (20).The fusing point of this thermoplastic typically is not less than about 50 ℃.

Thermoplastic is thermoplastic fibre specifically, can be made by multiple thermoplastic polymer, comprises polyolefin such as polyethylene (PULPEX for example ^) and polypropylene, polyester, copolyesters, polyvinyl acetate, poly-ethyl vinyl acetate, polyvinyl chloride, polyvinylidene chloride, polyacrylic acid, polyamide, copolyamide, polystyrene, polyurethane and any above-mentioned copolymer vinyl chloride/vinyl acetate etc. for example.Depend on required feature, suitable thermoplastic comprises and is made into hydrophilic hydrophobic fiber.Suitable thermoplastic fibre can be made (homofil) by a kind of polymer, perhaps can be made (for example, bicomponent fibre) by more than one polymer.The polymer that comprises skin is different with the polymer that comprises core through being everlasting, typically than melting under its low temperature.Therefore, these bicomponent fibres are owing to the fusion of skin polymer provides heat bonding, simultaneously the required strength characteristic of holding core polymer.The method for preparing the heat-bondable fibre material is described in the United States Patent (USP) 5,607,414 announced on March 4th, 1997 people such as () Richards; With the United States Patent (USP) of announcing on August 27th, 1,996 5,549,589 people such as () Horney (especially referring to the 9th to the 10th hurdle).

That absorbed layer preferably has quantitatively is about 60gm ^-2To about 300gm ^-2, 80gm more preferably from about ^-2To about 200gm ^-2, 90gm most preferably from about ^-2To about 160gm ^-2It preferably is made up of to about 30% bicomponent fibre about 70% to about 90% wood pulp cellulose or other cellulosic material, about 1% to about 30% adhesive and about 1%.

Comprise that in absorbing structure the material (according to the fluid grams of every gram absorbing material) with higher capacity is necessary.Term used herein " superabsorbent material " is meant and the g/g capacity of water is at least about any absorbing material of 15g/g under the confined pressure of about 2.0kPa (0.3psi) when measuring.Contain water basely owing to can be used for most of cleaning fluid of the present invention, superabsorbent material preferably has higher g/g capacity to water or water-based fluid.When superabsorbent material is included in the absorbing structure, absorbing structure will preferably include weight by described absorbing structure at least about 15%, more preferably at least about 20%, also more preferably at least about 25% superabsorbent material.

Comprise the absorbed layer place at cleaning substrate (20), this layer can comprise any above-mentioned material.Similarly, comprise the upper and lower places at cleaning substrate (20), they also can comprise any above-mentioned absorbing material, perhaps can be non-absorbent but in fact fluid is permeable.If upper strata and/or lower floor are absorbefacient, it will typically have the absorbability lower than absorbed layer.The upper and lower can comprise layer material separately, perhaps can be the part of identical layer material, for example are wrapped in absorbed layer layer material on every side.In addition, the upper and lower can comprise the single or multiple lift structure independently of one another, and can comprise annexing ingredient between upper strata and/or lower floor and absorbed layer.

As will explaining after a while, cleaning substrate (20) composition that can be cleaned is wetting in advance.In this embodiment, cleaning substrate (20) preferably includes a plurality of discrete fluid reservoirs." dispersing " used herein fluid reservoir is to be used to comprise fluid, be the reservoir of liquid cleansing composition specifically, described reservoir is separated from each other, if reservoir is located adjacent one another, then can simply separate by the wall of single reservoir, if perhaps reservoir is isolated, then can clean substrate separately by part.

Typically, reservoir can be by running through the bonding or embossing formation of whole absorbing structure thickness.Under individual layer absorbing structure situation, this apparent surface who typically means absorbing structure gathers together at select location.Under multilayer absorbing structure situation, this means that typically the skin with sandwich construction gathers together, and preferably those layers is bonded together at select location.For example, comprise that at absorbing structure upper strata, lower floor and therebetween absorbed layer (50) locate, preferably at select location the upper strata is adhered to lower floor to limit discrete fluid reservoir, the result is the discrete portions that each reservoir will comprise absorbed layer.

Can realize bonding by applying heat and/or pressure or ultrasonic wave.Typically, when when running through the bonding formation reservoir of cleaning substrate (20), do not use the bonding strength of adhesive will be greater than 30 gram forces.

In fact can consider countless many fluid reservoir shape and sizes.For example, the shape of reservoir is optional from circle, square, rectangle, rhombus, ellipse, triangle, hexagon and their combination.Also can consider other shape.Under latter event, reservoir can form by the cementing line of preferably extending between the different sides of cleaning substrate is intersected.For example, cementing line can form acute angle with the side of cleaning substrate, and perhaps they can be basically parallel to those sides extensions.

Preferably, Lin Jin fluid reservoir fluid communication with each other.We say so and be meant that fluid can flow between adjacent reservoirs.Yet in order to realize fluid flow to necessity constraint of cleaning substrate side (22,23), fluid is communicated with and should limits to some extent, to reduce or to avoid being connected to drippage during the burnisher.Can realize that fluid is communicated with by prepare slit between reservoir, this slit can be produced by the method that is used to form reservoir, as described in more detail below.The cross-sectional area that this type of groove has the typical case about 0.0645 to 0.3226cm ²(0.01 to 0.05 square inch), typically about 0.0968 to 0.2903cm ²In the scope of (0.015 to 0.045 square inch).

The preferred adhesive bonding method that is used to form reservoir is described in U.S. Patent application 10/456288 such as (McFall people) of submitting on June 6th, 2003.This method is described in cleaning substrate (20) at this moment and comprises upper strata, lower floor and be clipped under the situation of absorbed layer (50) therebetween, but also is applicable to other absorbing structure.In fact, this method comprises the part compression of cleaning substrate (20), absorbing material is broken and separate (promptly leaving pressure spot), and upper strata and lower floor is kept perfectly.The result be have one clearly passage be used for the upper strata and lower floor is bonded together, preferably the absorbing material of considerably less (if any) is really stayed in the bond site.But the discrete portions of absorbing material is enclosed in the gained fluid reservoir.

In the method, comprise can be by using any material that heat and/or pressure, adhesive or ultrasonic wave are bonded together in the upper and lower.Suitable material comprises foregoing non-woven material; Polymeric material such as the thermoplastic film of the plastic sheeting of porose shaping thermoplastic film, perforate or not perforate and hydroforming; Porous foam, reticulated foams; Cellular thermoplastic film and thermoplastic scrim.Yet if when especially using adhesive or other type bonding, the material except thermoplastic may be preferred.For example, top flat and rear panel can comprise separately by hydrogen bond and be adhered to cellulosic material itself.

Adhesive bonding method typically comprises the laminated material feed that will for example comprise upper strata, absorbed layer (50) and lower floor by at least one pair of cylindrical shape roll, and at least one roll has on its surface from the embossing pattern of surperficial outward extending a plurality of projectioies of roll or pattern elements formation.

Another one cylindrical shape roll is as the anvil member, and pattern roller is limited to the roll gap of pressure-biased therebetween with anvil roller.Preferably, anvil is a smooth surface, yet two rollers all can have embossing pattern thereon.The preferred biasing mutually of pattern roller and anvil roller, and have about 140MPa (about 20,000psi) extremely about 1400MPa (about 200, load 000psi).

Pattern roller preferably is driven on identical direction with different speed with anvil roller, makes that to have superficial velocity therebetween poor.The size that the superficial velocity difference preferably has be roller lower surface speed about 2% to about 40%, more preferably between about 2% and about 20%.Anvil roller is preferably with the superficial velocity operation greater than the pattern roller superficial velocity.Yet, also might be used for bonding high linear speed and under the zero velocity difference, take place.

Depend on the character of the fluid reservoir that expectation forms, embossing pattern can be taked various ways, and can be continuous or intermittently.If embossing pattern is continuous, the result will be continuously bonding.If embossing pattern is intermittently, the result will porose or slit be present in bonding in, this will allow the fluid connection between the aforesaid adjacent reservoirs.In this case, can think bonding a plurality of bond site that comprise, their size depends on size, shape and the spacing distance of the projection of forming embossing pattern.Preferably, aspect ratio protruding and the therefore bond site of gained is less than 0.10, more preferably in 0.02 to 0.085 scope, most preferably in 0.03 to 0.083 scope.In context, aspect ratio is defined as the ratio of minor axis and major axis.In addition, be close to interval between the bond site or distance preferably at about 0.038cm extremely in the scope of about 0.127cm (0.015 to 0.05in).

Projection or pattern elements also can be taked the landing surface (be outmost surface) of various ways as projection.Projection has the sidewall of the cylindrical shape roller surface that is not orthogonal to separately usually.For example, preferably, the surface of sidewall and cylindrical shape roll forms greater than 45 ° and less than 90 °, preferably the angle between about 70 ° to 90 °.

The surperficial suitable shape that lands includes, but are not limited to ellipse, circle, rectangle, squares and triangles.The landing surface also can have multiple size, and for example areal extent is about 6.4516mm ²To about 19.3548mm ²(0.0001 square inch to 0.003 square inch), thus the bond site of basic identical area caused.

Randomly, before bonding, absorbed layer can be torn or cut the formation particulate matter, the bonding patterns of the corresponding expectation of its pattern.Yet importantly the material that is selected from of upper strata and lower floor should make them be kept perfectly during this optional cutting step.Cutting can realize that through pair of cylinders shape roll each cylindrical shape roll has the patterned surfaces that is preferably formed by ridge that limits a plurality of lance tooths and paddy thereon by the laminated material that makes absorbed layer (50), upper strata and lower floor.The cylindrical shape roll makes laminated material stand the mechanical strain process, and the power that this process applies is greater than the breaking yield point of absorbed layer (50), but less than the breaking yield point of upper strata and lower floor.Therefore, absorbed layer (50) can be torn and not tear last slice or following sheet to small part.

Each layer that this adhesive bonding method (being described in the people's such as McFall that submitted on June 6th, 2003 U.S. Patent application 10/456288) also can be used for multilayer is cleaned substrate (20) is bonded together, and do not produce fluid reservoir.For example, this adhesive bonding method only can be used at the periphery of layer each layer being bonded together.

The another kind of adhesive bonding method that forms reservoir comprises that ultrasonic wave is bonding, and the suitable equipment that is used for this purposes comprises Branson Ultrasonic Unit Model 900BCA.For example, become arranged in patterns onboard according to the reservoir of expecting the parts for the treatment of bonding cleaning substrate (20), and compress, for example use the pressure of about 207kPa (30psig), simultaneously ultra-sonic welded cleaning substrate (20).

Minimize for the performance that makes absorption reduces, the selection of bond area is important.Foresighted as institute, bond area is big more, the absorption of substrate and therefore the mileage number of substrate reduce many more.Preferably less than 10%, be more preferably less than 5%, along total bond area (in the x-y plane) of whole cleaning substrate most preferably less than 3%.For example, can utilize AutoCad LT 98 softwares to measure bond area according to following method:

1. draw a design.

2. on pattern, move from right to left and from top to bottom, find repetition.

3. to draw the frame that comprises a repetition from top to bottom and from left to right.

4. to the element count in the frame of drawing just now (for example 45).

5. calculate the size of element

(0.025cm * 0.254cm=0.006cm for example ²(0.010in. * 0.1in.=0.001in ²)).

6. the number with the frame interior element multiply by size

(0.006cm for example ²* 45=0.27cm ²(0.001in. * 45=0.045in ²)).

7. in AutoCadLT98, measure the length and the width of front institute picture frame.

8. multiply by length with width

(2.54cm * 5.08cm=13cm for example ²(1in. * 2in.=2in. ²)).

9. use the area of the area of frame divided by element

(0.27cm for example ²/ 13cm ²=0.0207 (0.045in ²/ 2in. ²=0.0225)).

10. multiply by this number to obtain your bond area percentage with 100

(0.0207 * 100=2.07% (0.0225 * 100=2.25%)) for example.

With respect to the bonding degree of depth of the not adhesion area (promptly any bonding before) of cleaning substrate (20) clean ability for consumers' perceptions and actual scouring performance also very important.Preferably, for reaching well balanced between absorbent properties, drippage and the consideration attractive in appearance, the bonding depth factor (BDI) that cleaning substrate (20) has is 0.15, preferably less than 0.10.Average thickness that can be by adhesion area calculates BDI divided by the average thickness of adhesion area not (promptly any bonding before).Typically, the not bond thickness of cleaning substrate (20) is 2mm at least at most, preferred 4mm at most.

When cleaning substrate (20) was multilayer, absorbed layer (50) preferably had and is present in identical shape and the size of all other layers that cleans in the substrate (20).In another preferred embodiment, the size of absorbed layer (50) is less than all other layers that are present in the cleaning substrate (20).Shape can be identical with other layer, but be preferably difformity, more preferably eye shape.In after a while with the most preferred embodiment that is explained in more detail, used cleaning piece is detachably connected to and comprises on the burnisher of shape mophead.In this embodiment, absorbed layer (50) has a shape, and preferably the shape with the burnisher cushion pad is consistent for it.

Clean substrate (20) therein and be multilayer and comprising in those embodiments of absorbed layer, before preferably all layers being bonded together, at first absorbed layer is adhered to the upper strata with adhesive.When absorbed layer (50) during less than all other layers, preferably at first absorbed layer (50) is adhered to the upper strata with adhesive, then all layers except absorbed layer (50) are bonded in periphery continuously or discontinuously.

Attaching parts

Cleaning piece comprises at least one attaching parts as described in the present invention.These attaching parts are to be formed on the upper surface of cleaning substrate (20) or the lower surface and to have the pocket (30) of at least one opening (40), burnisher or at least the part of burnisher can insert in this opening.

Pocket (30) preferably by non-woven material is adhered to the cleaning substrate (20) upper surface or lower surface on form.Preferably this non-woven material is adhered to cleaning substrate (20), between the upper surface of this layer and cleaning substrate (20), stays at least one opening (40).Can at first non-woven material be adhered to cleaning substrate (20), the forward position part with cleaning wipe (10) cuts into definite shape subsequently.Alternatively, non-woven material can have reservation shape, is adhered to cleaning substrate (20) at its periphery place then.The method for optimizing that non-woven material is adhered to the cleaning substrate is the adhesive bonding method that is described in the people's such as McFall that submitted on June 6th, 2003 the U.S. Patent application 10/456288, and this method is above being described.

When pocket is formed on the upper surface, the mophead of burnisher or user's hand can be inserted in this pocket.When pocket is formed on the lower surface, at first mophead or hand are placed on the upper surface, then with pocket-folding on mophead or hand.Pocket helps tractive cleaning substrate more near the lower surface of mophead.Pocket also can be and uses provider tropism.

The combination of aforesaid any non-woven material or non-woven material all can be used for pocket.Preferably, non-woven material is non-absorbent, and comprises the synthetic material than the bigger percentage of non-synthetic material, and has high density.Preferably, non-woven material comprises 50% to 100% synthetic material and 0% to 100% non-synthetic material.Most preferably, non-woven material be spunbonded materials, shaping membrane, any kind spunbond-melt and spray-spunbond compound, the nonwoven structure that melts and sprays film and fiber or scrim.Non-woven material also preferably has some elasticity, thereby this material can stretch on length above 10% of its relaxed state.Importantly, non-woven material must have enough intensity and durability makes it does not torn in use.Non-woven material quantitatively greater than about 15gm ^-2To 100gm ^-2, preferably between 15gm ^-2And 70gm ^-2Between, most preferably between 15gm ^-2And 50gm ^-2Between.The density of non-woven material is preferably greater than 0.1g/cm ³Also can consider to use gauze or polymerization silk screen or mesh grid to form pocket.

Pocket (30) has at least one opening (40).In a preferred embodiment, opening (40) is basically perpendicular to the longitudinal axis of cleaning substrate (20), and promptly opening (40) is tieed up at yz.Opening (40) preferably extends to the whole substantially width of cleaning substrate (20).Aperture position is away from forward position (21), and preferred center near cleaning piece, perhaps back along part towards cleaning piece.Pocket (30) can comprise the additional opening (40) that is parallel to first opening (40), and the position is towards the forward position (21).

In another preferred embodiment, as shown in Figure 4, opening (40) be in yz dimension the position towards the forward position (24) of cleaning substrate (20) or even the opening (40) on this forward position, and in the x-y dimension, clean on the longitudinal axis of substrate (20) and extend.

In another preferred embodiment, the material that forms pocket is adhered to whole peripheries of cleaning substrate, opening and is positioned at the centre of this material in the xy dimension.As shown in Figure 8, this embodiment is the eye shape cleaning wipe with pocket, and described pocket has a shape opening.

Pocket (30) cover cleaning substrate (20) upper strata or down surface layer at least about 2%, but be no more than about 90%.When pocket (30) covers the upper strata or down during the less than 2% of surface layer, pocket (30) will be too little and can not suitably be connected to the burnisher mophead or be held.Therefore, pocket (30) cover cleaning substrate (20) upper strata or down surface layer about 2% to about 90%, preferred about 2% to about 85%, more preferably from about 5% to about 50%, even more preferably from about 10% to about 30%, most preferably from about 20% to about 30%.Most preferably, pocket (30) covers about 25% of cleaning substrate (20) upper strata or following surface layer.

Alternatively, as shown in Figure 9, pocket cover cleaning substrate upper strata or lower floor about 90% to about 100%, and the yz dimension near the back along the place or the back along on have an opening, a slit (41) is arranged in the non-woven material of this external formation pocket.Slit (41) is positioned on the longitudinal axis (being the x axle) of cleaning substrate.Slit (41) by the back along extending to the center of cleaning substrate at least, but preferably cleaning substrate length about 50% to about 98% between extend, more preferably cleaning substrate length about 70% to about 90%, even more preferably from about extend between 70% and about 80%.

Cross section on pocket (30) the x-y dimension preferably has at least one symmetry axis, more preferably has only a symmetry axis.A symmetry axis is positioned on the longitudinal axis of cleaning substrate (20).The shape that pocket (30) preferably has is selected from fundamental triangle, basic half elliptic, half shape, trapezoidal substantially, basic rectangle, or their combination.Yet pocket also can have more complicated shape.In a preferred embodiment, pocket (30) has fundamental triangle, basic half elliptic or half shape.In a highly preferred embodiment, pocket (30) has the tip that is positioned on cleaning substrate (20) longitudinal axis.The latter is especially useful, because its permission is cleaned in the corner.When at least one end that uses mophead as triangle, eye shape or when having the burnisher of any other shape of jag, it also can provide better applying.

In order to help the user that cleaning piece is connected on the burnisher, the non-woven material layer that forms pocket (30) can provide one or more holes, the collar, protuberance, extension or its combination.Alternatively, pocket can be folding in the edge of opening.These features make things convenient for the user to mention non-woven material layer to increase opening (40), just because of this, and the feasible mophead that inserts burnisher easily.Under opening (40) is extruded into cleaning substrate (20) owing to any reason because of non-woven material layer upper surface became too little those situations, this was especially useful.

Although it is preferred that pocket (30) forms as mentioned above, but pocket (30) also can link together them by two angles on the longitudinal axis opposite side of folding rectangle cleaning substrate (20) and with any known method known in the art and form method of attachment such as Velcro ^, adhesive tape, frenulum, clip, anchor clamps, bearing pin etc., or any adhesion mechanism as indicated above.

Pocket also can comprise the non-woven material of stretching.The so-called non-woven material that stretches is meant extensible 10% of its non-relaxed state that surpasses of non-woven material.This will make when cleaning pad is connected to mophead can be better, fit thereon more tightly.

Additional attaching parts

Cleaning piece also can comprise one or more additional attaching parts as described in the present invention, preferably is different from above-mentioned attaching parts.

Be suitable for the attaching parts that cleaning piece of the present invention is connected on the burnisher be, but be not limited to, one or more outstanding (it is with the bearing pins on the corresponding mophead) in the cleaning piece, suspension hook or cover and-loop fastener, adhesive, belt or any other suitable attaching parts known in the art, perhaps their any combination.This also comprises such attaching parts, and the part of these attaching parts is positioned on the cleaning piece, and the appropriate section of these attaching parts is positioned on the mophead of burnisher, for example the snap-fastener system.

These one or more additional attaching parts can be positioned at the forward position (21) of cleaning piece to be located, with the connection of further improvement pocket (30) to burnisher.They also can be positioned at side (22,23) or back along part.Especially the latter is preferred, because in a single day with the mophead insertion pocket (30) of burnisher, it allows to hold and strain cleaning wipe (10), removably cleaning piece is connected on the instrument then.This mode can make cleaning piece adapt to the mophead shape better.

In a highly preferred embodiment, cleaning piece of the present invention comprises cleaning substrate (20), and wherein additional attaching parts are to allow cleaning piece to be connected to the articulamentum of instrument mophead.Be unsuitable for cleaning piece is connected in those embodiments of instrument mophead at absorbed layer (50), articulamentum will be necessary.Articulamentum also can be used as and weakens or prevent that the parts that fluid flows through cleaning wipe (10) upper surface from working, and the cleaning piece integrality of enhancing can be provided.The same with absorbed layer (50), articulamentum can be made up of the single or multiple lift structure, as long as it satisfies the demand.The preferred laminar structure that comprises the nonwoven structure that for example melts and sprays film and fiber that utilizes.In a preferred embodiment, articulamentum is spunbond polypropylene.

When use comprises the burnisher of the mophead with one or more narrow slit structures, pocket (30) is especially useful with the combination of articulamentum, because inserted pocket (30) afterwards at mophead, cleaning wipe (10) can be stowed and be fixing, fixes by carrying out loose-style in the articulamentum propelling narrow slit structure that will be behind the cleaning piece locate along (24) then.

As mentioned above, one or more additional attaching parts preferably are different from pocket.This be will have because not breaking pocket two pockets on the same surface of cleaning substrate (20), producing (promptly one ahead of the curve part and another in the back along part) cleaning piece be connected to the mophead of burnisher will be very difficult or possibility hardly, thereby bring inconvenience to the user.Have only when uniting use, just can on the same surface of cleaning substrate (20), comprise that the cleaning piece of two pockets is connected to mophead with the burnisher of mophead with alterable height shape.Yet, by the non-woven material that use to stretch, two pocket design can be become have not yielding or even the instrument of the mophead of rigidity on work.Yet for realizing this purpose, only can needing, a pocket comprises the draw nonwoven material.The so-called non-woven material that stretches is meant extensible 10% the non-woven material that surpasses its non-relaxed state.Alternatively, cleaning piece can be designed to have the pocket that produces in the forward position of a surface (for example upper surface) part and on other surface back another pocket that produces along part of (for example lower surface).Then one of those pockets should comprise the non-woven material of stretching at least, and preferably the pocket that produces along part in the back should comprise the non-woven material of stretching.This makes the mophead of burnisher can partly insert pocket ahead of the curve, the pocket of edge, back part can be overturn and be folded on the mophead then.

The material that forms pocket (30) also can provide one or more slits, then this slit can with mophead on outstanding corresponding to allowing better applying, and during use cleaning piece is remained on the appropriate location.

The optional feature of cleaning wipe

Cleaning wipe (10) also can comprise one or more supplementary features as described in the present invention, and these features help to finish specific clean up task.

This category feature can be the scouring bar that is connected to cleaning substrate (20) lower surface.This scouring bar can permanently be connected to lower floor, perhaps can be removable viscosity and cleans bar, perhaps can use Velcro ^Connect.This scouring bar can cover whole lower surface, but preferred the covering is less than whole lower surface.In a preferred embodiment, clean bar and be positioned at the forward position part of cleaning piece, and have half-oval shaped, size is equal to or less than the forward position part of this cleaning piece.In addition, a series of little scouring bars can be provided at the forward position part of cleaning piece or be distributed on the whole lower surface of cleaning piece.Cleaning bar is particularly useful for grout and the incrustation scale removed in the bathroom hard surface.Clean bar and be necessary to comprise that abrasive material is to remove obstinate stain.Suitable material comprises through being usually used in making those of scouring pad, typically is the polymer or the polymer blend that contain or do not contain concrete grinding agent.The embodiment of suitable polymers comprises thermoplastic polymer such as polypropylene, high density polyethylene (HDPE), polyester (for example PETG), nylon, polystyrene, and their blend and copolymer.

Except use was present in material in the typical scouring pad, a kind of alternative plan was to use the brush that comprises bristle to clean realizing.This type of bristle typically is made up of the polymer or the polymer blend that contain or do not contain grinding agent.In the field of brush, preferred with its rigidity, hardness and/or durability quilt by the bristle that nylon is made.A kind of preferred nylon brush hair by 3M Corp. with trade name Tynex ^612 nylon are sold.

Another kind method is to use net or scrim material to form and cleans bar.Equally, net or scrim typically are made up of the polymer or the polymer blend that contain or do not contain grinding agent.Net or scrim typically are wrapped in secondary structure on every side so that some stacking volumes to be provided.The shape of net endoporus can include, but not limited to multiple shape as square, rectangle, rhombus, hexagon or their mixing.Typically, the area that the hole in the net is formed is more little, and the scouring ability is strong more.This mainly is that these intersection points are with kiss the earth in fact just owing to have the fact of the crossing point of more wherein scrim material.Except parcel net or scrim, a kind of alternative plan is to be applied directly to secondary structure for example on the non-woven material with melt extruding polymer.In case solidify, this polymer will produce the best hard material of the non-manufactured materials of ratio secondary, and it provides the scouring ability then.

Other suitable material comprises wherein by printing or the discontinuous pattern that forms on substrate provides those of texture.In this regard, durable material (for example synthetic material) can be continuously or discontinuous pattern be printed on the substrate, for example, but be not limited to independent point and/or line and/or tubercle and/or striped and/or cross and/or character, or any possible shape.Similarly, continuous or discontinuous pattern can be printed on the barrier paper, and be transferred on the cleaning substrate (20), it can be used as the scouring bar then.These patterns can be repetition or they can be at random.The embodiment of these durable materials comprises inorganic material, as calcium carbonate and sodium metasilicate particle, and organic polymer, comprise polyethylene, polypropylene, polyester, polyamide (as the nylon variant), and their mixture.In a preferred embodiment, cleaning piece has into the lapped face of texture in a side, this texture is formed by tubercle that is applied in this lip-deep abrasive material and/or striped, uses BareissHHP 2000 sclerometers, and the hardness that abrasive material has is about 40 to about 100Shore D units.Abrasive material can cover its cleaning piece side external surface that is positioned at long-pending about 5% to about 50%.The further use that can be incorporated into the abrasive structure on the cleaning piece of the present invention is disclosed in United States Patent (USP) 4,833, and 003, European patent 0946119 and international publication WO02/090983.

Another alternative plan is to clean bar to comprise grinding agent or coarse particulate matter.Suitable particulate matter comprises available from Polytex ^Thick China ink.Another alternative plan is to clean bar by Velcro ^The collar or suspension hook constitute.

Clean bar and can be the single or multiple lift structure.The preferred bar of cleaning is taked the thin-film material form, and precondition is that they have necessary bending stiffness to withstand the scouring action of repetition.The thickness that suitable thin-film material has usually is at least 50.8 μ m (2mils), uses bending stiffness that Kawabata crooked test instrument measures to be 0.10gcm at least ²/ cm.

Preferred thin-film material is that liquid (being the liquid that comprises dirt specifically) is permeable, but for non-absorbent and have and weaken liquid and return through its structure and the trend on wetting surface to be cleaned again.Therefore, film surface is tending towards keeping dry during clean operation, thereby reduces the film forming and the smear on surface to be cleaned and make the wipe surfaces substantially dry.Preferably, thin-film material comprises and a plurality ofly stretching out and outstanding away from cleaning substrate main body from film surface.Alternatively or additionally, film can comprise a plurality of holes.Can there be multiple shape and/or size in the outstanding and/or hole that forms in above-mentioned thin-film material.

Cleaning wipe (10) can comprise scrubbing layer.When being connected to the mophead of burnisher, this scrubbing layer extends across the lower surface of mophead.The lower floor of cleaning substrate (20) can take the form of scrubbing layer.Typically, scrubbing layer is the outermost layer of cleaning substrate, therefore contact surface to be cleaned during normal clean operation.In this case, in order not damage surface to be cleaned, scrubbing layer must have than cleaning the lower abrasiveness of bar with being necessary.

Scrubbing layer can be the single or multiple lift structure.Material is applicable to scrubbing layer on a large scale, and is for example disclosed among the WO-A-0027271.Specifically, scrubbing layer can comprise and weaving and non-woven material; The thermoplastic film of polymeric material such as porose shaping thermoplastic film, apertured plastic films and hydroforming; Porous foam; Reticulated foams; Cellular thermoplastic film; And thermoplastic scrim.Suitable weaving with non-woven material (for example can comprise natural fiber, wood-fibred or cotton fiber), synthetic fibers such as polyolefin (for example polyethylene, especially high density polyethylene (HDPE) and polypropylene), polyester (for example PETG), polyimides (for example nylon) and synthetic cellulose (RAYON for example ^), polystyrene, with their blend and copolymer, and the combination of natural fiber and synthetic fibers.These type of synthetic fibers can be the known method of manufacturing industry, for example carded method, spun-bond process, meltblown, air lay method, needle point method etc.

Scrubbing layer to small part includes the hole forming film.Porose shaping membrane is preferred for the permeable scrubbing layer of liquid, because they can see through the aqueous cleaning liquid comprise dirt (comprise dissolving with undissolved particulate matter), but they are for non-absorbent and have and weaken the trend that liquid returns wetting surface to be cleaned again.Therefore, the shaping membrane surface that contacts with surface to be cleaned keeps dry, thereby reduces the film forming and the smear on surface to be cleaned and make the wipe surfaces substantially dry.

When the cleaning substrate is mobile along surface to be cleaned, has porose shaping membrane tapered or funnel type hole (being the upper end diameter of the lower end diameter of finger-hole) and in fact can show to have swabbing action greater than the hole.This helps to make liquid to flow to other layer, for example absorbed layer (50) of cleaning substrate from surface to be cleaned.In addition, in case liquid has been transferred to other layer, absorbed layer (50) for example, hole tapered or funnel type has even the bigger liquid that prevents returns the tendency that arrives surface to be cleaned through scrubbing layer.Therefore, the porose shaping membrane with tapered or funnel type hole is preferred.Suitable porose shaping membrane is described in following patent: the United States Patent (USP) 3,929,135 that is entitled as " Absorptive Structures Having TaperedCapillaries " of authorizing Thompson on December 30th, 1975; Authorize people's such as Mullane the United States Patent (USP) 4,324,246 that is entitled as " Disposable Absorbent Article Having A Stain ResistantTopsheet " April 13 nineteen eighty-two; Authorize people's such as Radel the United States Patent (USP) 4,342,314 that is entitled as " Resilient Plastic Web Exhibiting Fiber-Like Properties " August 3 nineteen eighty-two; Authorized people's such as Ahr the United States Patent (USP) 4 that is entitled as " MacroscopicallyExpanded Three-Dimensional Plastic Web Exhibiting Non-GlossyVisible Surface and Cloth-Like Tactile Impression " on July 31st, 1984,463,045; Authorized the United States Patent (USP) that is entitled as " Multilayer PolymericFilm " 5,006,394 of Baird on April 9th, 1991.Being used for the permeable scrubbing layer of preferred liquid of the present invention is the porose shaping membrane that is described in one or more above patents, and by The Procter ﹠amp; Gamble Company, Cincinnati, Ohio is as DRI-WEAVE ^On sanitary napkin, sell.

In the hard surface cleaning field, although hydrophilic porose shaping membrane can be used as the permeable scrubbing layer of the liquid that cleans substrate, but hydrophobic porose shaping membrane is preferred, returns the process scrubbing layer and arrives lip-deep trend to be cleaned because it will have the liquid of weakening.This can be in the film forming on surface to be cleaned and smear, less dirt is remaining and produce the clean-up performance of improvement faster aspect drying time, and all these all are the very important aspects of hard surface cleaning.Therefore, the present invention clean substrate the permeable scrubbing layer of liquid preferably to small part be hydrophobic porose shaping membrane.Will be appreciated that also scrubbing layer can be made of more than one material.

In a preferred embodiment, the permeable scrubbing layer of liquid be can macroscopic view expansion three-dimensional Plasitc fibers net, preferred contact in use is cleaned and has projection or surface deviation on the scrubbing layer lower surface of hard surface.

When being used to describe three-dimensional Plasitc fibers net, belt and film, term used herein " can macroscopical be expanded " and is meant the surperficial corresponding to fleece, belt and the film that produce with the three-dimensional structure, so that two surface all shows the three-D pattern with described shaped structure, when the vertical range on observer's eye and this fleece plane is about 30cm (about 12 inches time), described pattern is the bore hole finding easily.This type of can macroscopic view expansion fleece, belt and film typically can be by the following method surperficial consistent with described shaped structure: by embossing, promptly show when having mainly the pattern of forming by convex surface when the shaping structure, by depression, promptly show when having mainly the pattern of forming by the capillary network of depression when the shaping structure, perhaps by resin melt directly is expressed on the surface of arbitrary class shaped structure.As a comparison, when being used to describe Plasitc fibers net, belt and film at this paper, term " plane " is meant when when macro-size detects by an unaided eye, the general status of fleece, belt or film.In context, " plane " fleece, belt and film can be included in fleece, belt and the film that one or both sides have the fine scale surface deviation, when observer's eyes and the vertical range between the fleece plane are about 30cm (about 12 inches) or when bigger, described surface deviation is not easy seen by the naked eye.

It is online that surface deviation is created in Plasitc fibers by photoetching technique well known in the art.This type of fleece and the detailed description for preparing this type of fibroreticulate method are disclosed in that on July 31st, 1984 announced by people such as Ahr and transfer The Procter; The United States Patent (USP) 4,463,045 of Gamble Company, it is introduced for your guidance in view of the above.People such as Ahr disclose the top flat that can be used as diaper, sanitary napkin, incontinence device etc. have a surface deviation can macroscopic view expansion three-dimensional network.People such as Ahr prefer having the fleece of surface deviation, are to improve fibroreticulate sense of touch because it is given the outward appearance of the non-gloss of fleece and more resembles cloth by the wearer's sensation that makes diaper, sanitary napkin etc.Yet in the hard surface cleaning field, the outward appearance and the sense of touch of cleaning substrate are very unimportant.Comprise have surface deviation can macroscopic view expansion three-dimensional network the permeable scrubbing layer of liquid cause improved scrubbing layer performance.Surface deviation provides the surface that abrasiveness is more arranged, and it is relevant with the better cleaning performance.The surface deviation that makes up with the hole of tapered or funnel type provides the cleaning cleaning that substrate strengthens, absorbability to reach wetting characteristics again.The permeable scrubbing layer of liquid therefore preferably include contain can the three-dimensional Plasitc fibers net of macroscopic view expansion porose shaping membrane, described Plasitc fibers netting gear has the hole and/or the surface deviation of tapered or funnel type.For improving the ability that the cleaning substrate picks up particulate matter, three-dimensional scrubbing layer is especially preferred.

Be used for another feature of cleaning piece as described in the present invention and provide on the cleaning piece lower surface hydrophilic, it helps Cleasing compositions is sprawled from the teeth outwards.This type of hydrophilic the frictional force that also will increase between cleaning piece and the surface to be cleaned, thus provide some to clean characteristic.

Being readily appreciated that to provide one or more methods of desired structure to combine to form optional scouring material being used to of describing.If the scrubbing substrate As layer exists, its height and open area in the z direction helps control and/or hinders liquid to flow into absorbent core material.The z of scrubbing substrate As layer highly helps to provide the parts of the liquid volume that control contacts with the clean surface, although can control the speed that liquid absorption or fluid transfer to absorbent core material simultaneously.

Cleaning wipe (10) also can be printed, and to improve the attractive in appearance or brand of cleaning piece, perhaps improves user's facility of cleaning piece.So-called printing be meant cleaning piece specifically color perhaps can be printed for example logo, picture or text (for example, operation instruction) by all or part of printing.In addition, can have only pocket (30) to be printed, perhaps have only the upper surface of cleaning substrate (20) to be printed, perhaps both all are printed.When pocket (30) all was printed with the upper surface that cleans substrate (20), preferably they were with different color printings.Especially under the situation that pocket (30) is printed, preferably its color that is printed is different with the remainder of cleaning piece, thinks that the user provides bigger facility.Alternatively, can use the non-woven material (that is, wherein fiber was colored, and perhaps resin was colored, and perhaps non-woven material is colored) of dyeing after making before making the spunbond or shaping membrane of non-woven material before making non-woven material.

The type of nonwoven cleaning wipes

First kind cleaning piece is the absorption cleaning wipe (10) that is used for moisturizing cleansing as described in the present invention.These cleaning pieces are particularly designed for cleaning floor or other hard surface, and unite use with the aqueous cleaning composition that is suitable for cleaning floor.In a preferred embodiment, disposable absorption cleaning wipe (10) comprises the cleaning substrate (20) of multilayer, and comprises absorbed layer (50), the scrubbing layer of choosing wantonly and optional articulamentum.

Absorbed layer (50) is the basic element of character, and it is used to keep any fluid and the dirt that cleaning wipe (10) is absorbed during use.Absorbed layer (50) also should be preferably can keep the material that absorbs and " squeeze out " with quilts such as the dirt avoiding absorbing, clean solutions under typical working pressure.For reaching required total fluid displacement, preferably the material with relative high power capacity (according to the fluid grams of every gram absorbing material) is included in the absorbed layer (50).Therefore, in another preferred embodiment, absorb cleaning wipe (10) and comprise superabsorbent material as indicated above.Because it is water base that the most of cleaning fluids that can be used for cleaning piece of the present invention contain, superabsorbent material preferably has water or the higher g/g capacity of water-based fluid.Just because of this, when uniting when using, absorb cleaning wipe (10) (especially comprise superabsorbent material those) and have enhancement effect, because they are just effectively from surface removal water or group water solution with aqueous cleaning composition.When uniting when using with aqueous cleaning composition, super-absorbent polymer also is useful, because that side that they help to keep cleaning piece to contact dirty face is not moisture, and significantly strengthens the water or the moisture chemical substance capacity of the disposable cleaning cleaning piece (10) that absorbs.In addition, super-absorbent polymer is guaranteed to remain locked in the cleaning piece from the solution that cleaning piece is removed, therefore all other cleaning systems (that is the conventional cleaning system, pre-wetting cleaning piece and the disposable absorption cleaning piece that, lack super-absorbent polymer) can significantly improve drying time relatively.

Optional but preferred scrubbing layer is the part of cleaning wipe (10), it contact dirty face during cleaning, and promptly it is for cleaning the lower floor of substrate (20).Just because of this, the material as scrubbing layer must very durablely make this layer will keep its integrality during cleaning course.In addition, when cleaning wipe (10) and solution were united use, scrubbing layer must can absorb liquid and dirt, and those liquid and dirt are discharged into absorbed layer (50).To guarantee that like this scrubbing layer can constantly remove the other material from surface to be cleaned.No matter used tool has clean solution (promptly under wetting state) or do not have clean solution (promptly under drying regime), except removing particulate matter, scrubbing layer also will help other function, for example polishing, dedusting and polishing surface to be cleaned.Scrubbing layer can be individual layer, or one or more layer can have the sandwich constructions of slit, cleans dirty face and absorbs particulate matter helping.When scrubbing layer when the dirty face, this scrubbing layer and dirt when using (and clean solution) interact, the dirt of loose and emulsification stubbornness, and allow them freely to enter in the absorbed layer (50) of cleaning piece.Scrubbing layer preferably comprises opening (40) (for example slit), and they can be the absorbed layer (50) that bigger particulate fouling freely enters cleaning piece and are collected the approach of providing convenience within it.Low-density structure optimization is as scrubbing layer, to help the absorbed layer (50) that particulate matter is sent to cleaning piece.For required integrality is provided, the material that is particularly useful for scrubbing layer comprise synthetic material for example polyolefin (as polyethylene and polypropylene), polyester, polyamide, synthetic cellulose (as Rayon ^), and their blend.This type of synthetic material can utilize known method manufacturing, for example carded method, spun-bond process, meltblown, air lay method, needle point method etc.Alternatively, can use foregoing scouring bar, scrim or other material of cleaning characteristic is provided.

As indicated above optional but preferred articulamentum allows cleaning piece to be connected to the mophead of instrument.

Compare with the burnisher or the pre-wetting cleaning piece of routine, these disposable wipes are favourable, because their not only loose dirts, and absorb more dirty solution.The result is that the remaining remnants in surface reduce and dry the quickening.These cleaning pieces can be used as free-standing product, but preferred and the tool combinations that comprises mophead, are particularly useful for the cleaning of floor surface.

The second class cleaning piece is pre-wetting cleaning piece as described in the present invention.With the pre-moisturizing cleansing substrate of hard surface cleaning composition (20) that is suitable for cleaning hard surfaces (as ground, bathtub, wall, automobile etc.).This paper substrate can be formed at any one group of natural or synthetic fiber known in the art.The embodiment of useful suitable fibers type comprises paper pulp, Tencel ^Artificial silk, Lenzing AG Rayon ^, little dawn Rayon ^And Lyocell ^, polyethylene, polypropylene, polyester, and their mixture.Can pass through methods known in the art producd fibers, for example air lay method, wet-laying method, meltblown, spun-bond process, carded method, jet net-spraying method, needle point method, air penetration method etc.Nonwoven substrate can be the individual layer cleaning piece or more preferably is bonded together by many layers to be formed to form laminated material.

If non-woven material is the individual layer substrate, preferably it comprises hydrophilic fibers (cellulose or cellulose derivative comprises paper pulp, Rayon ^And Lyocell ^And their mixture) and hydrophobic fiber (synthetic, as to comprise polyethylene, polypropylene, polyester, and their mixture), ratio is about 1: 5 to about 10: 1, more preferably from about 1: 3 to about 5: 1, also more preferably from about 1: 2 to about 3: 1, most preferably from about 1: 1 to about 3: 1.Optional towards the wiping object plane on surface is veined or in other words macroscopical three-dimensional.The individual layer cleaning piece quantitatively be preferably about 35 the gram every square metre of (gm ^-2) to about 200gm ^-2, 40gm more preferably from about ^-2To about 150gm ^-2, 45gm most preferably from about ^-2To 110gm ^-2Load factor promptly adds solution content on the dry nonwoven substrate to restrain every gram, is preferably about 2: 1 to about 7: 1, and more preferably from about 2.5: 1 to about 6: 1, most preferably from about 3: 1 to about 5: 1.

The selection of substrate chemical composition will be depended on the character that required solution discharges from pre-wetting cleaning piece.Given quantitatively reaching under the load factor, hydrophilic fibers absorbs more solution than hydrophobic fiber, and this can cause solution release characteristic lower on the ground.Low release of aqueous cleaning composition is favourable, but because its limiting surface is moistening, helps drying then.Reducing surface wettability also can realize by the control load factor.Secondly, the technical staff will know in comprising the pre-wetting cleaning piece forming process of hard surface cleaning composition, the careful nonwoven substrate parameter of handling can allow that the moistening of control arranged on the surface, and the advantage that provides like this surpasses the aqueous cleaning solution that conventional instrument (sponge, cellulosic bar etc.) is sent.When the nonwoven substrate of selecting was the laminated material of material, this type of advantage can be exaggerated.

In a preferred embodiment; pre-wetting cleaning piece is a multilayer; and comprise the absorbed layer that acts on suitable liquid reservoir and optional but preferably clean or polish layer (it randomly acts on suitable articulamentum) after layer and the optional protection outward, and the optional clean layer of cotton-wool as mentioned above that comprises.With the wetting dried laminated material cleaning piece of hard surface cleaning composition, load factor is about 2: 1 to about 10: 1, more preferably from about 3: 1 to about 8: 1, even more preferably from about 4: 1 to about 7: 1, most preferably from about 4: 1 to about 6: 1.Cleaning or polish layer outward is quantitatively to be about 15gm ^-2To about 100gm ^-2, 20gm more preferably from about ^-2To about 80gm ^-2, 25gm most preferably ^-2To about 75gm ^-2Nonwoven substrate.Outer preferably have the three-dimensional structure of macroscopic view, and randomly comprise scrim material.Outer scrubbing layer randomly comprises about by weight hydrophilic fibers of 0 to 50% and about by weight hydrophobic fiber of 50% to 100%.That interior absorbed layer preferably has quantitatively is about 60gm ^-2To about 300gm ^-2, 80gm more preferably from about ^-2To about 200gm ^-2, 90gm most preferably from about ^-2To about 160gm ^-2It preferably is made up of to about 30% bicomponent fibre the adhesive of about 70% to about 90% wood pulp cellulose or other cellulosic material and/or about 1% to about 30% and/or about 1%.Interior absorbed layer fiber can be any dawn, and has any fibre density.If especially interior absorbed layer is an air lay, fibre density can be adjustment, thus control stay in the amount of aqueous cleaning composition in the absorbed layer.By fibre density, materials chemistry composition and technology in the absorbed layer in handling and clean outward or polish layer quantitatively, the technical staff can wash action control and sends from the teeth outwards wetting by dragging.Interior absorbed layer can be randomly by quantitatively less than 100gm ^-2The spunlaced nonwoven material form, described material comprises about 50% to about 90% cellulosic material and about 10% to about 50% synthetic material.Optional back layer is preferably the thermoplasticity viscose non-woven material of taking on semi-permeable layer.It also can be low quantitatively (preferably less than about 50gm ^-2) polyethylene or polypropylene foil, it can be used as and prevents impermeable film that solution loses from interior absorbed layer or as the articulamentum that is connected to mophead.

Pre-wetting cleaning piece can be impregnated with known hard surface cleaning composition.Hard surface cleaning composition typically is and contains group water solution, and described solution comprises one or more surfactants, solvent, builder, chelating agent, polymer, foam inhibitor, enzyme etc.Suitable surfactant comprises anion surfactant, non-ionic surface active agent, zwitterionic surfactant, amphoteric surfactant and cationic surfactant.The embodiment of anion surfactant includes, but not limited to alkylbenzenesulfonate, alkyl sulfate, alkylsulfonate of straight chain etc.The embodiment of non-ionic surface active agent comprises alkyl ethoxylate, alkyl phenol-ethoxylate, alkyl polyglucoside, alkylated glucamine, sorbitan ester etc.The embodiment of zwitterionic surfactant comprises betaine and sulfobetaines.The embodiment of amphoteric surfactant comprises the material that uses the imidazoles chemical substance to obtain, for example alkyl both sexes glycinate and alkyl imino propionate.The embodiment of cationic surfactant comprises an alkyl, dialkyl group and trialkyl ammonium class surfactant.The all commercially available acquisition of all above-mentioned substances, and be described in McCutcheon the 1st volume: Emulsifiers and Detergents, North American Ed., McCutcheon Division, MC Publishing Co., 1995.

Suitable solvent comprises short chain (for example, the C of ethylene oxide dihydroxylic alcohols and propylene oxide dihydroxylic alcohols ₁-C ₆) derivative, for example monoethylene glycol and diethylene glycol n-hexyl ether, a propane diols, DPG and tripropylene glycol n-butyl ether etc.Suitable builder comprises derived from those of phosphorus source, for example orthophosphates and pyrophosphate, and derived from those of non-phosphorus source, for example nitrilotriacetic acid, S, S-EDDS etc.Suitable chelating agent comprises ethylenediamine tetra-acetic acid and citric acid etc.Suitable polymers comprise its be anion, cation, amphion and non-ionic those.Suitable foam inhibitor comprises the C of siloxane polymer and straight or branched ₁₀-C ₁₈Aliphatic acid or alcohol.Suitable enzyme comprises that lipase, protease, amylase and other become known for the enzyme of catalysis dirt degraded.

The suitable clean solution that is used for pre-wetting cleaning piece comprises about 0.05% C ₁₀Alkyl polyglycoside, about 0.01% ethoxylated castor oil, about 0.02% HMW modified polyethyleneimine, about 1% propylene glycol n-butyl thing and optional assistant agent such as anticorrisive agent and/or spices; And about 99% to about 90% deionized water or demineralized water.

The 3rd class cleaning piece is the cleaning wipe (10) that is impregnated with the Cleasing compositions that needs the water activation as described in the present invention.This cleaning piece comprises cleaning substrate (20) and optional scrubbing substrate As.When comparing with the relative scrubbing substrate As that abrasiveness more arranged, cleaning substrate (20) can provide soft surface.The cleaning piece of these types can be moistening, but is preferably contact drying.So-called " contact drying " is meant that the content of water in the cleaning piece or other solvent does not make cleaning piece feel that contact is moist or moistening, for example contact wet wipe or pre-wetting cleaning piece, wherein substrate impregnated (promptly soaking) is in liquid and common low viscous composition.

As mentioned above, the cleaning substrate comprises absorbed layer, and it acts on suitable liquid reservoir so that cleaning to be provided; Layer after the optional protection, its optional effect is equivalent to articulamentum; With the optional clean layer of cotton-wool as mentioned above that comprises, preferably in order to produce foam during use.Optional back layer is preferably the thermoplasticity viscose non-woven material of taking on semi-permeable layer.It also can be low quantitatively (preferably less than about 50gm ^-2) polyethylene or polypropylene foil, it can be used as and prevents impermeable film that solution loses from interior absorbed layer or as the articulamentum that is connected to mophead.Optional scrubbing substrate As can be foregoing any scouring parts, but is preferably scrubbing layer or scrim.Cleaning substrate and scrubbing substrate As preferably interconnect, and might oppositely connect mutually.Tie point can be the lip-deep any point of cleaning piece, as long as scrubbing substrate As interconnects with cleaning substrate (20).Even more preferably, cleaning substrate and scrubbing substrate As can interconnect near the periphery of scrubbing substrate As and/or cleaning substrate (20).Preferably utilize ultrasonic sealing that substrate is interconnected, yet also can use any other common methods, for example use heat seal, adhesive, stitching and their combination.

Cleasing compositions is preferably the form of concentrated solution, paste or gel.As mentioned above, Cleasing compositions typically comprises one or more surfactants, solvent, builder, chelating agent, polymer, foam inhibitor, enzyme etc." paste " used herein is to comprise 0% Chemical composition that to about 40% water, at 1s ^-1Minimal viscosity under the shear rate is 50 pascal seconds (Pa.s).It is about 40% to be noted that solvent can surpass, but in that event, maximum 40% component can be water.Under a kind of extreme case, paste is the water that only comprises trace, more preferably at least about 1% water, also more preferably at least about 2% water, most preferably at least about the powder or the solid of 3% water.Under another kind of extreme case, paste can comprise up to about 40%, and more preferably from about 5% to about 30%, and more preferably from about 6% to about 25%, also more preferably from about 7% to about 20%, and 7% water content most preferably from about to about 15% water.Accurate water content will depend on the content of other solvent in the paste and required paste rheological properties.The viscosity of paste is inversely proportional to the content liquid that comprises water and other solvent in the composition (25 ℃ time) usually.At 1.0s ^-1Paste viscosity under the shear rate is preferably at least about 75Pa.s, more preferably at least about 100Pa.s, most preferably at least about 150Pa.s.At 1.0s ^-1It is about at the most 10 that paste viscosity under the shear rate is preferably, 000Pa.s, and more preferably about at the most 5000Pa.s, most preferably about at the most 1,000Pa.s.Preferred range of viscosities will depend on concrete paste composition component.Can use any scope of forming by above minimal viscosity content that limits and peak viscosity content.

The 4th class cleaning wipe is dry dedusting cleaning piece.This class cleaning piece can be formed at single non-woven material layer, but is preferably the compound of at least two independent stratums, and these independent stratums preferably are bonded together by water entanglement method.Cleaning piece comprises that randomly scrim is to strengthen the integrality of this cleaning piece.Cleaning piece can randomly comprise the additive that dirt adheres to that improves of low content.The additive level that is added into substrate is preferably between 0.01% and 25%, more preferably between 1% and 15%, even more preferably between 4% and 8%.Suitable additive comprises surfactant, oil, wax, spices, adhesive (comprising contact adhesive) or their combination.The embodiment of dry dedusting sheet is found in United States Patent (USP) 6,645,604.

The external member that comprises cleaning wipe (10) and burnisher

Cleaning wipe of the present invention (10) is preferably united use with burnisher, but also available hand (be about to hand and be inserted in the pocket (30), then the dirty face of wiping).Therefore, according to another aspect of the present invention, provide a kind of external member, it comprises:

-comprise the burnisher (60) of mophead (61); With

-disposable cleaning cleaning piece (10), described cleaning wipe (10) comprising:

-comprising the cleaning substrate (20) of non-woven material, described cleaning substrate (20) has longitudinal axis, upper surface and lower surface; With

-at least one attaching parts;

It is characterized in that described at least one attaching parts are the pockets (30) that form on described cleaning substrate (20) upper surface, described pocket (30) cover described upper surface surface area about 2% to about 90%, and have at least one opening (40).

The mophead that burnisher comprises can be rigidity, maybe can being badly deformed of can partly being out of shape.Mophead, the especially shape of mophead lower surface area are preferably circle, ellipse, eye shape, flatiron shape, triangle, square, rectangle, trapezoidal, pentagon or hexagon.In a highly preferred embodiment, burnisher comprise a shape, the deformable mophead.Mophead preferably is connected to shank by universal street corner.But mophead can comprise one or more attaching parts that loose-style ground connects cleaning piece that are used for as described in the present invention.Preferably, attaching parts are narrow slit structures on edge behind the contiguous eye shape mophead of position.

Preferably, one deck of pad has the shape identical with mophead, and the user can see during being connected to mophead.This purpose is the plain mode that instrument that mophead is navigated to is provided to the user.This is even more important to the non-rectangle cleaning piece, wherein cleaning piece to misplace the satisfaction that can cause product low or the result is undesirable.Randomly, this location can provide by pad being adhered in the shape identical with mophead or by using color or printing with the indication shape.Randomly, this location also can provide by the chemical substance (if chemical substance is dry paste or gel specifically) that can be impregnated into cleaning piece.Randomly, the forward position of the responsible mophead of these localization methods or back are along the location is provided.Owing to there is not the confusion of placement, localization method allows consumer's reciprocation less and cleaning piece, so the placement of mophead is improved with being connected.

Preferred burnisher as shown in figure 10 is described in the U.S. Patent application series of all submitting in about 3 days at 2003 9 60/499851 and 60/49985.

In the most preferred embodiment, external member comprises:

-comprising burnisher deformable, eye shape mophead, the described mophead position on edge, approaching back, surface thereon comprises that a narrow slit structure is with the cleaning piece that keeps clean (10); With

-comprise the cleaning wipe (10) of half shape forward position part and half the shape pocket (30) consistent with the shape of half shape forward position part, and comprise attaching parts, also comprise and eye shape absorbed layer (50) that eye shape mophead is consistent.

The most preferred embodiment provides best user's facility, cleaning piece to connect (removing with cleaning piece), and clean-up performance, is particularly useful for cleaning curved surface and cleans in the corner.In addition, when the mophead deformable, the power that is transferred to mophead and finally is transferred to cleaning piece from the consumer is lower than indeformable mophead.Mophead is yielding more, and the power of transfer more less and to clean used electricity few more.When using an end to have the mophead of narrow slit structure, because the end is more yielding because of cutting away the space that is used for narrow slit structure, the power of mophead end will be littler.Therefore, when uniting use with cleaning piece of the present invention, because the cleaning power of deformable mophead maximum possible, it will be favourable along a narrow slit structure is arranged that the forward position does not have narrow slit structure and back.This method allows very simply to connect mechanism, offers the stronger cleaning beneficial effect in place, consumer forward position simultaneously.In addition, this embodiment preferred provides improved hair pick up beneficial effect by the deformability of mophead.

In addition, the Breadth Maximum that preferably has of cleaning substrate (20) equal or be at least mophead Breadth Maximum and mophead side height twice add with.The length that preferably has of cleaning substrate (20) less times greater than (20mm at most) mophead maximum length and eye shape mophead top height twice add and.

Clean method

As mentioned above, cleaning piece of the present invention is preferred for cleaning hard surfaces (existing plane has curved surface again), for example floor, sink, bathtub, shower wall, glass, surface, kitchen, automobile etc.

Therefore, as described herein, provide the method for cleaning hard surfaces, described method comprises that described cleaning wipe (10) comprising with the step on disposable cleaning cleaning piece (10) the described surface of wiping:

-at least one attaching parts;

The packing of cleaning wipe

Preferably be wrapped in a pile cleaning wipe of the present invention (10) in the container or flow-wrapped in, both all have the opening (40) of Reclosable.Pile up cleaning piece and make when packing is opened, can utilize pocket (30) at the top.Cleaning piece can non-FOLD AND PACK, but preferred folding, more preferably three folding, most preferably two-folds.When cleaning wipe (10) was the cleaning wipe (10) of pre-wetting cleaning piece or the contact drying that floods Cleasing compositions, the latter was especially useful.By these cleaning pieces of two-fold, can reduce or even prevent contacting between the Cleasing compositions of a cleaning piece and another cleaning piece.Because prevented the direct contact between skin and the Cleasing compositions, it also can be the beneficial effect that the consumer provides safe and sanitary.

The opening of Reclosable is preferred enough big, with can preferably easily insert by opening to the small part mophead in the mophead of permission burnisher or the applying import bag.If necessary, before mophead was inserted pocket, the user can mention the non-woven material that forms pocket.This makes the user can easily mophead be connected to the still cleaning wipe in packing.In case mophead is fitted in the import bag, the mophead that the user can have cleaning wipe takes out from packing, then with the fixing cleaning piece of optional secondary attaching parts.This makes and can be prevented from contacting of user's skin that this is most important in pre-wetting cleaning piece situation.

Embodiment

A kind of following making of cleaning wipe that is impregnated with Cleasing compositions:

-at first, cut available from BBA Nonwovens GreenBay, the 70gm of WI ^-2The careless heat bonding material of 80% polypropylene, 20% artificial silk, make that length is that 273mm and width are 154mm.This structure is called a layer A.

-then, will be available from Buckeye Absorbent Products, Memphis, the 150gm of TN ^-2The absorbed layer of 82% paper pulp, 18% polyethylene/PETG (PE/PET) bi-component air lay core cut into the eye shape that 230mm is long and 110mm is wide.Then this core ultrasonic wave is adhered to the Nonwoven available from First Quality, Great Neck, the 15gm of NY ^-2100% spunbond egative film on.Cuts these materials and make that length is that 273mm and width are 154mm, and eye shape top is apart from cleaning piece forward position 27mm, behind the cleaning piece along 16mm.This shape layer should make it apart from each other side 19.5mm between two parties.This structure is called a layer B.

-next, layer A is placed on layer B, make core contact with careless heat bonding material.Be called a layer C with this structure this moment.

-next, turning layer C makes 15gm ^-2Aspect up.Be called a layer D with this structure this moment.

-next, will be available from First Quality Nonwoven, Great Neck, the 34gm of NY ^-2100% polypropylene spunbond material band be placed on the forward position of layer E.This material should be 85mm and takes advantage of 154mm.Be called a layer E with this structure this moment.

-next, use the bonding adhesive layer E of coming of ultrasonic wave, make the shape of half shape of forward position generation and the remainder of pad all be bonded together.This moment 34gm ^-2Spunbonded materials should cover about 25% pad.

-next, cutting around the jointing material of locating ahead of the curve.

-last, the clean solution of 30 grams is added on the pad, described clean solution comprises the modified polyethyleneimine of 0.05% C10 alkyl polyglycoside, 0.01% ethoxylated castor oil, 0.02% HMW, 1% propylene glycol n-butyl thing, and remaining is a deionized water.This is final pre-wetting pad.

Claims

1. disposable wipe (10) that is used for cleaning hard surfaces, described disposable wipe comprises:

-at least one attaching parts; Be characterised in that

Described at least one attaching parts are the pockets (30) that form on the upper surface of described cleaning substrate (20) or lower surface, described pocket (30) cover described upper surface or lower surface surface area about 2% to about 90%, and have at least one opening (40).

2. the described cleaning piece of each claim (10) as described above, wherein said pocket (30) has the tip that is positioned on the described longitudinal axis.

3. the described cleaning piece of each claim (10) as described above, wherein said pocket (30) have and are selected from following shape: fundamental triangle, basic half elliptic, half shape, trapezoidal substantially, basic rectangle, or their combination.

4. the described cleaning piece of each claim (10) as described above, wherein said at least one opening (40) is basically perpendicular to the described longitudinal axis of described cleaning substrate (20).

5. as the described cleaning piece of claim 1 to 3 (10), wherein said at least one opening (40) is positioned on the described longitudinal axis of described cleaning substrate (20) at least in part.

6. the described cleaning piece of each claim (10) as described above, wherein said pocket (30) covers about 5% to about 50% of described upper surface or lower surface surface area.

7. the described cleaning piece of each claim (10) as described above, wherein said pocket (30) covers about 10% to about 30% of described upper surface or lower surface surface area.

8. the described cleaning piece of each claim (10) as described above, wherein said pocket (30) covers about 25% of described upper surface or lower surface surface area.

9. the described cleaning piece of each claim (10) as described above, wherein said cleaning piece comprises one or more additional attaching parts.

10. cleaning piece as claimed in claim 9 (10), wherein said one or more additional attaching parts are articulamentums.

11. the described cleaning piece of each claim (10) as described above, wherein said cleaning substrate (20) comprises absorbed layer (50).

12. cleaning piece as claimed in claim 11 (10), wherein said absorbed layer (50) are eye shape.

13. the described cleaning piece of each claim (10) as described above, wherein said cleaning piece comprises absorbed layer (50), articulamentum and optional scrubbing layer, and wherein two or more layer is bonding at described periphery.

14. the described cleaning piece of each claim (10) as described above, wherein said cleaning piece is impregnated with Cleasing compositions.

15. cleaning piece as claimed in claim 14 (10), wherein said Cleasing compositions are concentrated solution, paste or gel.

16. an external member, described external member comprises:

-comprise the burnisher (60) of mophead (61); With

-at least one described cleaning wipe of each claim (10) as described above.

17. external member as claimed in claim 16, wherein said mophead (61) are eye shape, and are deformable.

18. external member as claimed in claim 17, wherein said cleaning wipe (10) comprise the absorbed layer (50) of a shape, described eye shape is consistent with the shape of described mophead.

19. external member as claimed in claim 17, wherein said burnisher (60) comprise that one is used for cleaning wipe (10) is remained on narrow slit structure on the upper surface of described mophead (61), the back edge of the contiguous described mophead in the position of described narrow slit structure; And the forward position part that wherein said cleaning wipe (10) comprises half shape with consistent half the shape pocket (30) of described half shape forward position partial shape, and comprise articulamentum, also comprise the shape absorbed layer (50) consistent with described eye shape mophead (61).

20. the method for a cleaning hard surfaces, described method comprise the step with surface as described in the described disposable cleaning cleaning piece of claim 1 to 15 (10) wiping.

21. one kind will be connected to method on the burnisher (60) with mophead as the described cleaning wipe of claim 1 to 15 (10), described method comprises inserts step in the described pocket (30) with described mophead (61).

22. a disposable wipe that is used for cleaning hard surfaces, described disposable wipe comprises:

-at least one attaching parts; Be characterised in that

Described at least one attaching parts are the pockets (30) that form on described cleaning substrate (20) upper surface, described pocket (30) cover described upper surface surface area about 90% to about 100%, and have opening and the slit on described longitudinal axis perpendicular to described longitudinal axis.