CN108024683A - With the preferably cleaning pad with the performance of water - Google Patents

Abstract

The present invention provides a kind of cleaning pad, the cleaning pad is used to absorb liquid from hard target surface.The cleaning pad has hydrophobicity floor slice and is joined to the core of the floor slice.The core has the absorbent gelling material with gradient distribution wherein so that the pad has specific minimal absorption with water or when common amine oxide clean solution is used together.The smooth bar of hydrophily is joined to the surface faced out of the floor slice.The cleaning pad provides both good absorption and friction coefficient for falling into and being judged and being conducive in clean specified range.Absorbability and friction coefficient cooperate well with water and amine oxide clean solution both of which.

Description

With the preferably cleaning pad with the performance of water

Technical field

The present invention relates to cleaning pad, and relate more specifically to be suitable for absorb the cleaning pad of liquid from hard surface.

Background technology

Attempted to provide absorption liquid, the cleaning pad of such as clean solution this area.Can be all from hard surface Work top such as floor, desk and kitchen absorbs liquid.Related in this area attempt to include US 2003/0300991, 2004/0074520、2011/0041274、6003191、6048123、6245413、6601261、6681434、6701567、 6996871st, 7037569,7096531,7163349,7480956,7458128,7624468,8341797 and 8707505, WO200241746。

But hydrophobicity floor, such as timber floor with aluminum oxide coating layer are difficult to clean.Dark floor and the floor of polishing It is difficult to clean, especially when consumer is without using enough clean solutions.If consumer uses too many clean solution, It not exclusively may be absorbed and be retained by sheet material during cleaning.Friction coefficient between cleaning pad and surface is too low to be caused not Appropriate cleaning, and friction coefficient can cause greatly very much to slide on chip, and cause cleaning to be difficult to manually complete.Some are existing Technology is attempted to consider the independent material and independent assembly of cleaning pad, but does not consider all these how to work together to influence to clean Performance.The present invention solves the problems, such as these.

The content of the invention

In one embodiment, cleaning pad includes pad, which has floor slice and be joined to the core of the floor slice.The core There is absorbent gelling material (AGM) wherein so that the pad have with water or when common clean solution is used together it is specific Minimal absorption.In relevant embodiment, cleaning pad, which can have to fall into be judged, to be conducive in clean specified range Friction coefficient.

In one embodiment, cleaning pad includes hydrophobicity floor slice, which has inward-facing table Face and the surface faced out corresponding thereto.Absorbent cores are joined to the inward-facing surface of floor slice.The smooth bar engagement of hydrophily To the surface faced out of the floor slice.

Brief description of the drawings

Figure 1A is with the top perspective of profile exemplary cleaning pad according to the present invention shown partially.

Figure 1B be with the bottom plan view of the cleaning pad of profile Figure 1A shown partially, and with one attachment Bar, it is truncated for clarity.

Fig. 2 is the schematic vertical cross section intercepted along the line 2-2 of Figure 1B.

Fig. 3 A to Fig. 3 D are the friction coefficient with water and the diagram to the general proportions relation between the absorbability of water.

Fig. 4 A to Fig. 4 F are the absorption with the friction coefficient of representative amine oxide clean solution and to amine oxide clean solution The diagram of general proportions relation between property.

Fig. 5 is the schematic diagram on the floor and stroke patterns for absorbability test.

Fig. 6 is the perspective view for the burnisher that can be used together with the cleaning pad of the present invention, and shows that cleaning pad is in It is removably attached to the position of burnisher.

Embodiment

Referring to Figure 1A, Figure 1B and Fig. 2, cleaning pad of the invention (10) may include multiple layers to provide to being deposited on object table The absorption and storage of cleaning fluid and other liquid on face.Target surface will be described herein as floor, but technology people Member will recognize that the present invention is not limited thereto.Target surface can be any hard surface, the workbench of such as desk or kitchen Face, it is expected that liquid is absorbed and retained from hard surface splashes thing, clean solution etc..

Cleaning pad (10) may include the floor slice (14) of fluid permeable, and the floor slice of the fluid permeable is during cleaning Contact floor and desired friction coefficient is preferably provided during cleaning.Preferably include the absorbent cores (16) of AGM (16A) It is arranged on and is optionally joined to the inward-facing surface of floor slice (14).Smooth bar (12) may be provided at floor slice (14) On the surface faced out.Optionally, tergite (18) it is engageable to the core (16) opposite with floor slice (14) to provide cleaning pad (10) to the attachment of instrument (30).Tergite (18) can have the surface faced out, which has one or more Attachment strip (20) is to be particularly conducive to be attached to instrument (30).Cleaning pad (10) can be general plane and limit X/Y plane and Associated X, Y-axis.When cleaning pad (10) is used on floor, Z axis is perpendicular and for general vertical.

If desired, core (16) can include AGM (16A) to increase the absorptive capacity of cleaning pad (10).AGM (16A) can be The form of particle, it can be distributed in cleaning pad (10) to avoid the quick mode for absorbing simultaneously slow-absorbing fluid, clear to provide The most effective use of clean pad (10).AGM (16A) can also wrap up the dirty liquid absorbed from floor, so as to prevent redeposition.If need Will, absorbing material or fibrous material can be incorporated into core (16).

Cleaning pad (10) is checked in more detail, and cleaning pad (10) may include to be arranged on multiple layers in lamilate.Minimum Or outer layer downwards may include hole to allow liquid to be transmitted by it and promote the shampooing of target surface.Can provide one, two A or more core (16) layer is used to store liquid, and the sandwich layer can include absorbent gelling material.Cleaning pad (10) can have The absorptive capacity of at least 10 grams, 15 grams or 20 grams clean solutions of every gram of dry cleansing pad (10), such as commonly assigned United States Patent (USP) Shown in 6,003,191 and 6,601,261.

Optional top or layer upwardly are tergite (18) and can be that liquid is impermeable, to make absorption liquid Minimization of loss, and if using cleaning pad (10) in the case of without instrument (30), protect the hand of user. Top layer may also provide releasable attachment of the cleaning pad (10) to burnisher (30).Top layer can be by more olefinic films such as LDPE systems Into.Suitable tergite (18) includes the PE/PP films of the base weight with 10gsm to 30gsm.

It is attached to the attachment strips (20) optional for one or more of tergite (18).Attachment strip (20) can include bonding Agent, preferably contact adhesive, or may include ring, which is used for the removable complementary hook being attached on instrument (30).Properly Ring attachment strip (20) may include the lamilate of PE films and nylon ring.

Tergite (18) and floor slice (14) can periphery engagement, as known in the art.The arrangement, which is formed, to be used for securely Keep the bag of core (16).Core (16) can be with the corresponding inward-facing surface juxtaposition of floor slice (14) and tergite (18) and optionally It is joined to the corresponding inward-facing surface of floor slice (14) and tergite (18).

Core (16) may include single layer or two or more layers.If multiple layers are selected to be used for core (16), the width of layer Degree can be with reducing, as shown in the figure close to floor slice (14).Core (16) may include airlaid fibrous and optional geopolymer Fiber, is such as purchased from Glatfelter (York, PA).If selecting two airlaid cellulose core (16) layers, core (16) Each layer can have at least about 75gsm, 100gsm, 125gsm, 150gsm, 175gsm, 200gsm or 225gsm and be less than about The base weight of 300gsm.

Preferably, each layer of core (16) includes AGM (16A).AGM (16A) can absorb at least 10 times of its own weight, 15 times or 20 times.AGM (16A) can be blown into air-flow method core (16) layer during manufacture, as known in the art.Suitably AGM (16A) is purchased from Evonik (Essen, Germany) with trade name Z3070G.Comprising gradient AGM (16A) distribution air-flow into Net materials are purchased from Glatfelter (York, PA).

Gradient distribution AGM (16A) can be realized by using more than one forming head.For example, airfelt/AGM (16A) is raw Producing line can have three forming heads.First can be distributed relative to the relatively great amount of AGM of the cellulose being distributed from this (16A). Second forming head can be distributed is routed to the first AGM relative to a small amount of AGM of cellulose substrate (16A), the wherein mixture On the top of (16A)/cellulose substrate.As needed, forming head as much as possible can be used to repeat the pattern.If need Will, final forming head can distribute pure cellulose and not distribute AGM (16A).In general, layer from each forming head not with phase Adjacent bed mutually mixes.Overlapping layer can be held in position in and provide structural rigidity by adhesives and/or hot adhesion.

Suitable core (16) layer and the conjunction for being used to prepare one or more cores (16) layer with gradient AGM (16A) distributions Suitable apparatus and method are seen in the US 8603622 of mandate on December 10th, 2013.8603622 teachings are by reference It is incorporated herein, the 8th to 14 row of the 5th column teaches suitable core (16) layer, and Fig. 5 to Fig. 6, and the 41st row of the 16th column is extremely The appended discussion of the 59th row of 17th column is taught suitable for preparing the process units of core (16) layer for the present invention.

, can with the juxtaposed lower sandwich layer (16L) of floor slice (14) if selecting two airlaid cellulose core (16) layers The AGM (16A) of about 10 weight % to 20 weight % is included, wherein finding that about 15% is suitable.If it exists, with it is optional The juxtaposed upper sandwich layer (16U) of tergite (18) can include about the AGM (16A) of 20 weight % to about 30 weight %, wherein finding about 25% is suitable.Consider its all layer, total core (16) can include 5 weight % to 50 weight % or 10 weight % to 45 weights The AGM (16A) of % is measured, the amount and gradient distribution for finding AGM (16A) contribute to the present invention.As described herein and claimed, The percentage of AGM (16A) refers in the situation without considering floor slice (14), tergite (18), smooth bar (12) or attachment strip (20) Under, the percentage by weight of the AGM (16A) in specific core (16) layer (16U or 16L).

Each sandwich layer (16L, 16U) and specifically upper sandwich layer (16U) can be further layered to provide the absorbability of bigger Beneficial effect.Upper sandwich layer (16U) can have three layers, as formed.If it exists, the layer can include 0 weight %, 25 Weight % and 50 weight %, with being increased monotonically close to tergite (18), to provide gradient distribution.

Generally it will be desired that being based on absolute value and percentage by weight meter, upper sandwich layer (16U) includes more than lower sandwich layer (16L) More AGM (16A).The arrangement provides following beneficial effect：Gel adhesion in lower sandwich layer (16L) is not exclusively prevented from object table Face absorbs liquid and is upwardly and away from floor slice (14) conveying liquid.

It is based preferably on absolute value or is optionally based on percentage by weight meter, there is provided more any arrangement of AGM (16A) is Suitably.Alternatively, core (16) layer or single core (16) layer can have increased AGM (16A) concentration in z-direction.

As known in the art, with close to tergite (18) provide Z-direction on increased AGM (16A) it is any such Method or arrangement are considered herein as AGM (16A) gradient.It should be appreciated that AGM (16A) gradient can be smooth, comprising One or more progressively increment or any combination of them.

Floor slice (14) may include with about 20gsm to the about 80gsm and specifically base weights of about 28gsm to 60gsm Discrete apertured non-woven thing.Floor slice (14) can be by hydrophobic and be made of synthetic fibers.Suitable floor slice (14) For the perforate spunbonded non-woven that 60gsm PE/PP are discrete, its with trade name SofSpan purchased from Fitsea (Simpsonville, SC).Floor slice (14) and the contact angle of water can be 101 degree to 180 degree.

Floor slice (14) may include smooth bar (12).Smooth bar (12) can have the width less than floor slice (14), and There can be at least about 10%, 20%, 30%, 40%, 50%, 60% or 70% floor slice (14) width.Smooth bar (12) can With at least 10mm, 20mm, 30mm, 40mm, 50mm, 100mm, 150mm, 200mm, 250mm and less than 70mm, 80mm, The width of the width of 100mm, 200mm or 300mm, wherein 24mm to 44mm are the width of suitable and preferred 34mm.

Smooth bar (12) can be hydrophilic.As used herein, hydrophily means the contact angle with 0 degree to 100 degree, such as As measured by test method shown in this article.Smooth bar (12) can specifically have 30 degree to 100 degree and more specifically 55 degree to 90 degree of contact angle.Smooth bar (12) can include at least 50% hydrophilic cellulose content.

More specifically, suitable smooth bar (12) can include the lamilate of cellulose fiber peacekeeping synthetic fibers.It is it is believed that such Lamilate helps to obtain the performance of cleaning pad as described herein (10).Cellulose fibre thin layer can be faced out above to be carried on floor For friction and absorbability.The relation that synthetic fiber layer may be positioned to contact with floor slice (14) is complete to provide during use Property.

Have found 23gsm paper handkerchiefs and the polypropylene spun-bonded spun lacing things of 17gsm (its with trade name 40gsm Genesis paper handkerchiefs by Suominen (Helsinki, Finland) is sold) it is a kind of suitable smooth bar (12).Another suitable smooth bar (12) 28gsm paper handkerchiefs and the polypropylene spun-bonded spun lacing things of 17gsm can be included, its with trade name 45gsm Hydratexture paper handkerchiefs by Suominen is sold.

Made of these smooth bars (12) cleaning pad (10) be known respectively as in whole Fig. 3 and Fig. 4 Genesis and Hydra [for Hydratexture].Smooth bar (12) is provided entirely on corresponding floor slice (14), wherein paper handkerchief towards Outer and polypropylene is set directly on floor slice (14).

Smooth bar (12) can have less than 0.5mm, 0.4mm or less than 0.3mm and be even substantially the surface line of 0mm Reason.Surface texture is measured as peak to the distance of paddy, it is unrelated with the thickness of smooth bar (12).It is believed that the surface less than 0.5mm Texture can minimize striped during cleaning, specifically when floor is dried, and more specifically when dark floor is dried.

If desired, smooth bar (12) can have the color that the color with floor slice (14) is contrasted.It is this to be arranged as Consumer provides the beneficial effect of the signal of smooth bar (12) and floor slice (14) with difference in functionality.

Referring to whole Fig. 3 A to Fig. 4 F, including Fig. 3 A and Fig. 4 F, tested and represented using corresponding detection method as described herein The absorbability and the coefficient of kinetic friction of property cleaning pad (10).Commercially available cleaning pad (10) is included from or with trade name Dollar General, Grime Boss, Great Value, Kroger, Lola, Price First, Rite Aid, Swiffer and Those of Target purchases, it should be understood that commercially available product can change over time.

It is also tested for four cleaning pads (10) according to the present invention.Two foregoing 34mm of use in these cleaning pads (10) The smooth bars of Genesis (12).Two smooth bars of the foregoing 34mmHydra of use (12) in these cleaning pads (10).According to this hair All four bright cleaning pads (10) utilize absorbent cores (16), the absorbent cores have the air-flow of two celluloses and AGM (16A) into Stratum reticulare (16U), (16L), floor slice (14) and tergite (18).Two cleaning pads (10) for being marked as " Grad " use gradient core (16).Upper sandwich layer (16U) be closer to tergite (18) set and with tergite (18) juxtaposed sandwich layer.Lower sandwich layer (16L) can more lean on Near-earth plate (14) and with floor slice (14) juxtaposition.Technical staff will be recognized that juxtaposition includes contact adjacent component.For test Pad that purpose manufactures and without the AGM (16A) in absorbent cores (16) or smooth bars (12) is respectively labeled as " no AGM " " no bar ".The tool for cleaning pad (10) for representing four data points described and claimed herein is shown in table 1 below Body material.

Table 1

Specific core (16) construction provides the compound gradient distribution of the AGM (16A) of the in-core.Upper sandwich layer (16U) has The AGM of 35 weight %.Lower sandwich layer (16L) has the AGM of 15 weight %.With two or more cores set with contact relation Layer (16U), the core (16) of (16L) can have the distribution of AGM (16A) gradient, its with increasing close to floor slice (14), and with Reduced close to tergite (18).AGM (16A) gradient can be dull or nonmonotonic.

Upper sandwich layer (16U) and/or lower sandwich layer (16L) can have the distribution of AGM (16A) gradient wherein.Likewise, it would be desirable to AGM (16A) is distributed in increase/reduction as described above in sandwich layer (16L) (16U).

Mark according to the present invention and as described above the upper sandwich layer (16U) of two cleaning pads (10) of " Grad " that there is following table AGM (16A) distributions shown in 2.Specifically, upper sandwich layer (16U) includes three layers in the certain layer (16U).The layer carries For the compound AGM (16A) in gradient AGM (16A) distributions and core (16) in the layer (16U).

Table 2

In contrast, commercially available Swiffer WetJet cleaning pads have upper sandwich layer (16U) and lower sandwich layer (16L), with regard to altogether for the AGM of 20.5 weight %, sandwich layer and lower sandwich layer have 15 weight % and 25 respectively on this in core (16) The AGM of weight %.The friction coefficient of this commercially available cleaning pad and water is 0.6 and rubs with amine oxide clean solution It is 0.5 to wipe coefficient.

If there is gradient distribution in sandwich layer (16L) (16U), whether there is gradient AGM in definite whole core (16) When (16A) is distributed, consider using the equivalent layer as an entirety.Therefore, embodiment described and claimed herein by In be in lower sandwich layer (16L) 15% and in upper sandwich layer (16U) for 35 weight % AGM (16A) distribution there is gradient Core (16).It is expected at least 15 weight % between upper sandwich layer (16U) and lower sandwich layer (16L), and preferably 20 weight %, 25 weights Measure the AGM distributions of %, 30 weight % or 40 weight %.

Referring to Fig. 3 A, it has been recognised by the inventors that, in the case where being tested with deionized water, cleaning pad (10) is shown Substantially positive correlation between friction coefficient and absorbability.In concept, two relative rectilinears can be drawn, one from WetJet Extra Power to Grad Hydra, and one from Great Value to no AGM+Hydra.It is such according to the prior art Correlation is unexpected.

Referring to Fig. 3 B, it is possible to find in the case where being tested with deionized water, cleaning pad (10) according to the present invention can have At least 0.45, preferably at least 0.48, more preferably at least 0.5, more preferably at least 0.55, more preferably at least 0.6, it is more excellent Selection of land at least 0.65, but the absorbability less than 1.0,0.9 or 0.8.Judge the absorbability to water in the range of this for cleaning mesh Be it is favourable, without unsuitable AGM (16A) is horizontal and associated cost and material process challenge.

Referring to Fig. 3 C, it is possible to find in the case where being tested with deionized water, cleaning pad (10) according to the present invention can have At least 0.6 [friction coefficient of current WetJet and water are 0.6], preferably at least 0.65, more preferably at least 0.7, but be less than 0.9, and preferably less than 0.8 friction coefficient.Judge that in the range of this be to have for cleaning purpose with the friction coefficient of water Profit, without the unsuitable cleaning under larger friction level, or will not be slided and relatively low on dirt Floor is deficiently cleaned under friction level.

Referring to Fig. 3 D, it is possible to find in the case where being tested with deionized water, be especially desired to cleaning pad according to the present invention (10) can have at least 0.4, more preferably at least 0.5, more preferably at least 0.6, more preferably at least 0.65, more preferably extremely Few 0.7, but it is less than 0.9 or the friction coefficient less than 0.8, and can also have at least 0.45, preferably at least 0.48, more preferably Ground at least 0.5, more preferably at least 0.55, more preferably at least 0.6, more preferably at least 0.65, but less than 1.0,0.9 or 0.8 absorbability.The performance of such cleaning pad (10) is represented by the dash box of Fig. 3 D.

Further to study the performance of cleaning pad according to the present invention (10), cleaning pad is tested with amine oxide clean solution (10), as described herein.It is believed that the cleaning of cleaning pad in use (10) is more accurately represented with amine oxide clean solution test Performance.

Referring to Fig. 4 A, it has been recognised by the inventors that, in the case where being tested with amine oxide clean solution, cleaning pad (10) Show the substantially positive correlation between friction coefficient and absorbability.In concept, can draw three relative rectilinears, one from WetJet Extra Power to Grad Genesis, one from Target II (2) to Rite Aid, and one from Target I to Dollar General.All three lines are respectively provided with substantially similar slope and linear dependence.According to existing Technology, such correlation are unexpected.

Referring to Fig. 4 B, it is possible to find in the case where being tested with amine oxide clean solution, cleaning pad (10) according to the present invention Can have at least 0.35, preferably at least 0.4, more preferably at least 0.45, more preferably at least 0.5, more preferably at least 0.55, but the absorbability to amine oxide clean solution less than 0.9,0.85 or 0.8.Judge being cleaned to amine oxide in the range of this The absorbability of solution is favourable for cleaning purpose, without unsuitable AGM (16A) containing horizontal and associated cost With material process challenge.

Referring to Fig. 4 C, it is possible to find in the case where being tested with amine oxide clean solution, cleaning pad (10) according to the present invention Can be with least 0.5, preferably at least 0.55, more preferably at least 0.6, more preferably at least 0.65, but it is less than 0.9, and Even more preferably less than 0.8, and even more preferably less than 0.75 friction coefficient.Judge in the range of this with amine oxide clean solution Friction coefficient be favourable for cleaning purpose, without the unsuitable cleaning under larger friction level, or Person will not slide on dirt and will not deficiently clean floor under relatively low friction level.

Referring to Fig. 4 D, it is possible to find in the case where being tested with amine oxide clean solution, cleaning pad (10) according to the present invention There can be the absorbability met with lower inequality：

Absorbability>0.7*cof -0.14,

Wherein 0.5<cof<0.85, and

Absorbability<1,

And cof is friction coefficient.

Optionally, 0.55<cof<0.8, or 0.6<cof<0.75.

Absorbability<0.9 or<0.8, and 0.7 times of friction coefficient can be 0.75-0.8.According to the prior art, it is such not Equation is unexpected.

The cleaning pad (10) for judging to meet the inequality is favourable for cleaning purpose, without unsuitable AGM (16A) level and associated cost and material process challenge, and judge that it is favourable, without in larger friction water Unsuitable cleaning under flat, or will not be slided on dirt and will not be deficiently clear under relatively low friction level Clean floor, wherein：0.5<cof<0.9, and/or 0.35<Absorbability<0.60.

Judge the absorbability to amine oxide clean solution in the range of this be for cleaning purpose it is favourable, without otherwise Appropriate AGM (16A) levels and associated cost and material process challenge.

Referring to Fig. 4 E, the unpredictable linear relationship of four cleaning pads (10) according to the present invention is shown.It is believed that Improved cleaning pad (10) is provided using the not previously known relation.

Referring to Fig. 4 F, the region of figure that cleaning pad (10) according to the present invention may conform to reach the standard grade and be shown between offline.This Class cleaning pad (10) may conform to below equation：Absorbability=0.7*cof+/- 0.1.

Wherein 0.5<cof<0.9, and

Absorbability<1,

And cof is friction coefficient.

Optionally 0.55<cof<0.75, absorbability<0.9 or<0.8, and can be +/- 0.05 around the band of the line.According to The prior art, such equation are unexpected.

Test method

Before any test, will each it be cleaned in controlled chamber under 20 DEG C to 25 DEG C and 40% to 50% relative humidity When pad (10) conditioning at least 24 is small.

Surface texture

While smooth bar (12) remains attached to the remainder of cleaning pad (10), the texture of smooth bar (12) is measured The surface faced out.In a manner of not damaging the texture of floor slice (14) or smooth bar (12), using sharp knife parallel to clear The width dimensions cutting cleaning pad (10) of clean pad (10).From viewed edge sample, so that the cross section of measurable cutting planes regards Figure.

It is smooth to measure that air line distance is measured by the axis along the flat surfaces towards floor perpendicular to smooth bar (12) The surface texture shape characteristic of bar (12), and it is accurate to 0.01mm.Distance to be measured is on the top of the bottom of paddy and adjacent peak Between portion perpendicular to smooth bar (12) plane vertical span, two of which endpoint be located at smooth bar (12) towards floor On surface.Carry out measurement distance using point-to-point measurement function or equivalent.

For each in five different cleaning pads (10), repeat the program and carry out n=1 measurement altogether.By five As a result it is averaged to measure the surface texture of smooth bar (12).

Suitable digital microscope for measuring is the Nikon with Nikon TV camera lenses C-0.6x SMZ1500, it has 2 cameras of Infinity from Lumenera Corporation (Ottawa, Canada).Suitably Survey Software includes INFINITY ANALYZE, the Release 5.0.3 from Lumenera Corporation.

AGM gradients

Predictive miniature X ray computerized tomography [CT] can be used for determining whether core (16) or its layer have gradient AGM (16A) is distributed.The CT record by imaging X-ray absorption of three-dimensional sample.Miniature CT scanner is shone using cone-beam X-ray source Penetrate sample.Radiation is decayed by sample, and the X-ray radiation that scintillator will transmit through is converted to light and passes through detector In array.X-ray attenuation depends greatly on the density of material of sample, therefore finer and close material needs higher energy Measure to penetrate and seem brighter (higher decay), but void area seems dark (relatively low decay).Gray level Strength difference be used to distinguishing different structure in sample, such as synthesis/cellulose fibre, AGM (16A) particle, gap and non- Void area.In rotary sample, two-dimentional (2D) projected image can be gathered from different perspectives, so as to use 3D imaging softwares Create digital three-dimensional (3D) reconstructed picture of sample.Resolution ratio depends on instrument feature, the diameter in the visual field and projection number used.Through The sample data collection of acquisition is visualized and analyzed by one or more image processing software programs, to measure 3D structures and strong Degree.

Absorbability

Use following device measuring absorbability.

Floor mop has the weight of 2.2+/- 0.2kg, without cleaning pad (10) and has shank (34) and head (32).Head (32) is connected to the near-end of shank (34) by ball-and-socket joint or universal joint.

Referring to Fig. 6, head (32) are rectangle, and wherein size is 11.4cm × 27.3cm sizes, and the bizet of 2mm is along 27.3cm Direction extension and in floor side covered with compliance surface, such as EVA.Shank (34) has straight section (34S), wherein should Straight section from the length at ball-and-socket joint or the center of universal joint be 108+/- 2.5cm.The straight section (34S) of shank (34) has at it The grasping part (34G) of far-end, which spends with straight section (34S) into 45+/- 5 is orientated.Grasped by commonly used person When, transition region 5+/- 2cm between the centre distance straight section (34S) and grasping part (34G) of grasping part (34G).At present by interim Swiffer WetJet (30) mop that assignee sells is suitable.

Metronome is set to 70 percussions per minute.

Redwood plank engineering hardwood flooring have 122cm × 91cm size, its with aluminium oxide polyurethane coating simultaneously And spent with the contact angle of deionized water for 100+/- 15.Every piece of plank is 12.1cm wide, has 1mm gaps between adjacent plank. Floor has 60 degree of glossiness readings of the Gloss Unit of 85+/- 5.Plate is alignd parallel to short direction so that every block of plate is at this Extend at least 91cm long in length but do not have seam.It has been found that Home Legend Santos redwood engineering hardwood Plate, UPC 664646301473 are suitable.

The liquid to be tested of one bottle of taring.

Hand-held triggers sprayer, its each run is sprayed about 1.24 grams.

Balance is accurate to 0.01 gram, it is purchased from Mettler Toledo.

1300 grams of deionized water.

1300 grams of solution, it includes 0.04% amine oxide active material (C10-16 alkyl dimethyls), CAS 70592- 80-2,0.5%EtOH ethanol, and surplus is deionized water.The solution is referred to as amine oxide clean solution in this paper full text, And represent common commercially available clean solution.

80/20 deionized water/aqueous isopropanol.

With 80/20 water/IPA solvent cleans, and paper towel dried is used before each experiment in floor.Weigh sample cleanup pad (10) to determine initial weight using balance.

Referring to Fig. 5, in concept, floor can be divided into 12 squares of 4 × 3 lattice, wherein each square is 30.5cm ×30.5cm.Test surfaces deionized water being sprayed onto in the respective center for four squares being spaced apart as shown in the figure by star On so that the uneven distribution of water occurs.About 2.75g to 3 grams of water is sprayed onto on each square shown in Fig. 5, is being surveyed Take temperature on face 11g to 12 grams of water altogether.Spray bottle is weighed to determine to the amount of liquid being sprayed onto on floor again.

Cleaning pad (10) is attached to mop.If cleaning pad (10) is more than head (32), cleaning pad (10) it is placed in the middle and It is trimmed to fitting so that the edge of cleaning pad (10) will not be folded during test or unsuitable towing.If using smaller Cleaning pad (10), then cleaning pad (10) is centrally placed on head (32).

Start metronome.Mop is forwardly and rearwardly carried out six strokes in each direction, 12 strokes altogether, with from The left-to-right whole floor of covering, as shown in Figure 5.The test is used such as by mop shank (34) application for providing the speed that mops floor Power commonly is mopped floor to carry out for rate, and wherein user does not deliberately increase or decrease compression stress so that the gross weight on floor Keep 2.2+/- 0.5kg.12 strokes of inverted repeat from right to left, to complete once to test back to starting point.In 12 rows During any part of journey, test user is not stepped down on test surfaces, but is from left to right moved, such as in the common condition that mops floor Lower progress.

Using metronome, mopped floor with the speed of 70 strokes per minute.It is metronomic every time tap with from front to back Run length code matching, or vice versa it is as the same, tapped altogether using 24 times to complete single test during stroke.By cleaning pad (10) again It is weighed to determine the amount of liquid absorbed during mopping floor.By the way that the water of absorption divided by dispensing to the water tested on floor and are turned Fractional value is changed into determine the percentage of the water by cleaning pad (10) absorption.

Program n=13 experiment, and result is averaged altogether is repeated for each cleaning pad (10), wherein each Foregoing 80/20 solvent clean floor is used before new experiment.Test n=3 cleaning pad (10) altogether.By three cleaning pads (10) Result it is average to obtain absorbability of the pad for deionized water.Absorbability is recorded as decimal, so as to represent between 0 and 1 simultaneously And include 0 and 1 fraction.

For aforementioned oxidation amine/ethanol solution, repetition includes the program of floor preparation.The solution is (herein referred to as Amine oxide clean solution) represent for test purpose described and claimed herein commercially available clean solution it is normal Use type.

Friction coefficient

The friction coefficient of material is frictional resistance divided by material is pushed to the normal force or vertical force on surface.Friction coefficient is surveyed Method for testing uses friction/stripping tensile tester (model Insight 10, from MTS System Corporation (Eden Prairie, MN) measure the coefficient of kinetic friction.

Offer size is 6.5cm × 11.0cm × 1.5cm and the 203g with hook fastener tests cunning on a bottom surface Plate.The first sample of cleaning pad (10) is attached to test sled using hook.If cleaning is more than test sled, cleaning pad (10) it is placed in the middle and be trimmed to fitting so that the edge of cleaning pad (10) is not folded during test.If using less clear Clean pad (10), then make cleaning pad (10) be centrally placed on test sled.The pressure of test sled is about 2.84g/cm².The pressure Simulate the typical pressure for being applied to cleaning pad (10) by light-duty mop when user cleans floor.

Test surfaces be 15cm wide × 28cm long × 5mm thickness glass plate, its component (component as friction testing equipment Number 100087526) it is purchased from MTS System Corporation.Using foregoing 80/20IPA/ aqueous solutions cleaner assay slide plate and Test surfaces.The instrument is set as follows：

1. " test sled weight " is set as 203g.

2. " data acquisition rate " is set as 20Hz.

3. " starting point " is set as 10mm.

4. " terminal " is set as 130mm.

5. " extension maximum height limit " is set as 135mm.

6. " collet " speed is set as 1000mm/min.

7. load sensor " return " is set to be used to test to starting point.

8. the back edge of the first sample and test sled away from glass test surfaces about 5mm is disposed in the top of glass plate On so that at test sled alignment path center, the quoit of the hook alignment load sensor wherein on test sled.

9. by making cord that test sled are attached to load sensing through pulley and until the fixture in test equipment Device.The fixture on cord is closed to be fixed.

10. 0.5ml test solution is added to glass plate by 1cm using volumetric pipette before sample.Testing solution should Being applied to about 50mm wide (width is defined as perpendicular to the size in the direction of test sled), being multiplied by 20mm long, (length is defined as Parallel to the size in test sled direction in movement) region.Used for absorbability test and PVvalue testing both of which Identical test solution.The absorbability and friction coefficient are tested with water or surveyed with amine oxide clean solution as described herein Examination.

11. start to test by pressing " progress " icon.Load sensor starts to move from back to front, so that towing test Slide plate and test sample.

12. when testing is complete, load sensor stops, and program will show confficient of static friction (ST) and dynamic friction The measurement of coefficient (KI).Record coefficient of kinetic friction measured value.Start the Back button so that test sled is returned to sample Beginning position.Test sled is positioned at initial position.Then press and carry out icon so as to retest.

13. when completing test again, load sensor stops, and program will show the coefficient of kinetic friction.Record the survey Value.

14. return push-button is again started up to send test sled back to initial position.

15. by the way that test sled and test sample are positioned at rear edge come retest as previously described.

16. by each sample test three times.Tested for second and third time, test surfaces do not soak again.

17. calculate the average value of this 3 times measurements

18. repeating the program for n=3 sample, and result is averaged.

Static contact angle

Floor slice (14) upwardly in the case of test cleaning pad (10) so that floor slice (14) peace draw runner (12) is sudden and violent Dew.Tergite (18) is placed on flat horizontal surface.The area of test sample (that is, floor slice (14) or smooth bar (12)) is enough Prevent test droplets to be diffused into the edge of tested sample or prevent drop to be in contact with each other.Do not touched directly during preparation or test Sample test surface is touched to avoid finger pollution.

The static contact angle of floor slice and/or smooth bar is measured using contact angle goniometer.Methods described below is come Come from ASTM D5946-09.

Equipment for measuring contact angle has：(1) liquid distributor, the liquid distributor can be from the tips of distributor Sessile drop (as defined) is hung, (2) sample holder, the sample holder allows sample to keep flat without unexpected wrinkle Or deformation, and sample levels are kept so that surface is measured, the drop that (3) are used to make sample and suspension is in a controlled manner towards that This, to complete measure of the droplet transfer to test surfaces, and (4) with the dress of the contour images of minimal deformation trapping drop Put.Use 5 degree of depression angles so that sight raises 5 degree from horizontal plane, and when being contacted with sample, the baseline of drop clearly may be used See.The equipment has the device for direct angular surveying, such as to the drop size on sample and the graphical analysis of position. It is found that by First Ten Angstroms (Portsmouth, VA) manufacturesDynamic contact angle video system point Analyzer is suitable.It has been found that by First Ten Angstroms suppliesSoftware (Build 362, version 2 .1) It is suitable.Illumination is adjusted, therefore the distinguishable clearly image of software is to extract baseline and drop profile, it is defeated without user Enter.

Test sample is placed on the sample holder of instrument, so that it is guaranteed that sample is kept flat without unexpected wrinkle or change Shape.As the case may be, by contacting the single drop of the μ L deionized waters of 6.5+/- 1.5 from the syringe needle that specification is 22 Distributor is transferred on the surface of sample i.e. floor slice (14) or smooth bar (12).By software with least 20 images/secs The image of rate collection drop profile.When fixed volume reduces the 2% of initial volume, measure between drop and test surfaces Contact angle, in units of degree.If 2% reduction of fixed volume does not occur, such as may occur when test sample does not absorb , then in balance contact angle is measured (as lacking additional wetting and determined by lacking the movement of drop).

Mobile test sample, so as to which next drop is placed on the clean undisturbed region of sample, preferably away from What previously measurement at least 25mm leaves one's post.The test is repeated for n=5 sample altogether.Inspection measurements with observe and measure value from Whether the change of least count to full-scale reading is more than 5 degree.If the results change of n=5 test is not more than 5 degree, by n= 5 results are averaged to produce static contact angle.

If reading change is more than 5 degree, obtains n=20 reading altogether and result is averaged.Then using n=20 Average value.

Instrument (30)

Cleaning pad (10) according to the present invention can manually be used or is used together with burnisher (30).Referring to Fig. 6, this is clear Clean instrument (30) may include for keeping the plastic head (32) of cleaning pad (10) and may be movably coupled to plastic head Extend shank (34).The shank (34) may include metal or plastic tube or solid hopkinson bar.

The head (32) can have surface downwards, and cleaning pad (10) could attach to the surface.Surface downwards can To be generally flat or protrude slightly above.Head (32) can also have surface upwardly.The surface upwardly can have Universal connector Head is connected to head (32) to be conducive to extend shank (34).

Shackle system can be used for the bottom that cleaning pad (10) is directly attached to head.Alternatively, surface upwardly can Mechanism grasping piece such as with resilience is further included, cleaning pad (10) is removably attached to instrument (30).If grasping Part is used together with burnisher (30), then grasping piece can be according to commonly assigned United States Patent (USP) 6,305,046；6,484,346； 6,651,290 and/or D487,173 is manufactured.

Burnisher (30) may also include the reservoir for storing clean solution.Exhaust when clean solution and/or When needing to refill, replaceable reservoir.Reservoir may be provided on the head (32) or shank (34) of burnisher (30). The neck of reservoir can be biased according to commonly assigned United States Patent (USP) 6,390,335.The clean solution being accommodated therein can basis It is prepared by the teachings of commonly assigned United States Patent (USP) 6,814,088.

Burnisher (30) may also include the pump for clean solution to be assigned to target surface such as floor from reservoir. The pump can be battery powered or be operated by line voltage.Alternatively, clean solution can be distributed by gravity stream.Clean solution Clean solution can be provided with the distribution on effective model to target surface by one or more nozzle sprays.

If using replaceable reservoir, replaceable reservoir can be inverted to provide the gravity of clean solution Stream.Or clean solution can be pumped into distribution nozzle.Reservoir can be bottle, and can be made of plastics such as polyolefin.Clearly Clean instrument (30) can have a sleeve (36), the sleeve removedly receiving bottle or other reservoirs.Burnisher (30) can have Pin, it is optionally located in sleeve (36) to receive the clean solution from bottle.Bottle can have and be able to can be worn with the pin of pin complementation Permeable membrane, and it is resealed to prevent clean solution worthless drippage during the insertion and removal of replaceable reservoir. Alternatively or in addition, if it is desired, may also provide instrument (30), its be used to delivering the vapor to cleaning pad (10) and/or Floor or other target surfaces.

Therefore, the reservoir of suitable clean solution and accessory can according to commonly assigned United States Patent (USP) 6,386,392,7, 172,099；D388,705；D484,804；The teachings of D485,178 manufacture.Suitable burnisher (30) can be according to altogether With the United States Patent (USP) 5,888,006 transferred the possession of；5,960,508；5,988,920；6,045,622；6,101,661；6,142,750； 6,579,023；6,601,261；6,722,806；6,766,552；The teachings of D477,701 and/or D487,174 are made Make.Steam utility (30) can be manufactured according to 2013/0319463 commonly assigned teachings.

Dimension disclosed herein and value are not understood as being strictly limited to cited exact numerical.On the contrary, unless in addition Indicate, otherwise each such dimension is intended to indicate that described value and around the functionally equivalent scope of the value.For example, it is disclosed It is intended to indicate that " about 40mm ", no matter whether term " about " is explicitly shown for the size of " 40mm ".Each model disclosed herein All endpoints including the scope are enclosed, no matter are disclosed within the range or the part as relevant range.Such same range Two endpoints can be disclosed as wider or more close limit endpoint.Common mathematical symbol>With<Respectively represent be greater than or equal to and It is less than or equal to, and the endpoint including being shown in hereafter equation and inequality.

Unless expressly excluded or in other words limited, otherwise by every herein cited document, including any intersection Quote or related patents or application, full text are herein incorporated by reference.The reference of any document be not to its as with this Invent any disclosure or the herein accreditation of the claimed prior art, or be not to its own or with it is any other The combination proposition of bibliography or multiple bibliography, the accreditation for suggesting or disclosing any aspect of the invention.In addition, work as this hair Any implication or definition contradiction of same term in any implication of bright middle term or definition and the file being incorporated by reference When, the implication for assigning the term in the present invention or definition should be obeyed.

Although specific embodiments of the present invention have had been illustrated and described, to those skilled in the art It is readily apparent that a number of other change and modifications can be made in the case where not departing from spirit and scope of the present invention.Therefore, originally Text is intended to cover all such changes and modifications belonged in the scope of the invention in appended claims.

Claims (15)

1. a kind of cleaning pad (10), the cleaning pad include：

The floor slice (14) of fluid permeable, and

Absorbent cores (16), the absorbent cores and the floor slice (14) juxtaposition, and absorbent gelling material is included wherein, it is special Sign is that the cleaning pad (10) has 0.48 to 1 absorbability to water.

2. cleaning pad (10) according to claim 1, it is characterised in that the cleaning pad has 0.5 to 1 suction to water The property received.

3. cleaning pad (10) according to claim 2, it is characterised in that the cleaning pad is with 0.55 to 0.9 to water Absorbability.

4. cleaning pad (10) according to any one of the preceding claims, it is characterised in that the cleaning pad have 0.6 to 0.9 friction coefficient with water.

5. cleaning pad (10) according to any one of the preceding claims, the cleaning pad includes 5 weight % to 50 weights Measure the AGM (16A) of %.

6. cleaning pad (10) according to claim 5, gradient of the cleaning pad with AGM (16A) is distributed, wherein AGM (16A) percentage reduces with close to the floor slice (14).

7. cleaning pad (10) according to any one of the preceding claims, it is characterised in that the cleaning pad have 0.4 to 0.9 absorbability to amine oxide clean solution.

8. a kind of cleaning pad (10), the cleaning pad include：

The floor slice (14) of fluid permeable, and

Absorbent cores (16), the absorbent cores and the floor slice (14) juxtaposition, and absorbent gelling material is included wherein, it is described Cleaning pad (10) has 0.35 to 1 absorbability to amine oxide clean solution.

9. cleaning pad (10) according to claim 7, wherein the absorbability to amine oxide clean solution for 0.4 to 0.9。

10. cleaning pad (10) according to claim 8, wherein the absorbability to amine oxide clean solution for 0.4 to 0.65。

11. the cleaning pad (10) according to claim 8,9 and 10, the cleaning pad with 0.5 to 0.9 it is clear with amine oxide The friction coefficient of clean solution.

12. the cleaning pad (10) according to claim 8,9,10 and 11, it is characterised in that the cleaning pad has 0.5 to 1 The absorbability to water.

13. the cleaning pad (10) according to claim 8,9,10,11 and 12, the cleaning pad includes 5 weight % to 50 weights Measure the AGM (16A) of %.

14. cleaning pad (10) according to claim 13, gradient of the cleaning pad with AGM (16A) is distributed, wherein AGM (16A) percentages reduce with close to the floor slice (14).

15. cleaning pad (10) according to any one of the preceding claims, wherein the floor slice of the fluid permeable (14) there is the surface faced out, and be characterized in that the cleaning pad (10) further includes and be joined to the floor slice (14) The smooth bar of hydrophily (12) on the surface faced out.