CN102458206A

CN102458206A - Integral dual functionality cleaning pad

Info

Publication number: CN102458206A
Application number: CN2010800261463A
Authority: CN
Inventors: D·J·彭; C·K·希克森
Original assignee: Procter and Gamble Ltd
Current assignee: Procter and Gamble Ltd; Procter and Gamble Co
Priority date: 2009-06-08
Filing date: 2010-06-08
Publication date: 2012-05-16
Also published as: EP2440101A1; US20100306946A1; WO2010144414A1; US20120023693A1

Abstract

A cleaning pad (20) has a facing sheet (21) joined to a backsheet (22), and an absorbent core (24) disposed between the facing sheet (21) and backsheet (22). The facing sheet (21) is an integral sheet having a first region (12) comprising a plurality of apertures (28), and a second region (14) comprising a plurality of raised protrusions (31). The two different regions (12,14) provide dual functionalities of absorbing (or distributing) liquid, such as a cleaner, and scrubbing, respectively.

Description

Whole dual-use function cleaning pad

Invention field

The present invention relates to floor cleaning pads, more particularly relate to the floor cleaning pads that is used to clean target surface with texturizing surfaces.

Background of invention

Cleaning pad is known by people in the art.This type of pad is used to clean target surface, for example floor or other hard surface.Usually the floor with the pad cleaning comprises malthoid, ceramic tile, wood floors etc.

For simplicity, cleaning pad can be attached to burnisher removedly.Burnisher can have the elongate shaft portion that is used to supply user's grasping.Shank can be linked to head through universal joint usually.As other a kind of selection, shank and head can be fixed relationship, as usually occurring for the ring-type shank.Cleaning pad can be attached to the bottom of head removedly so that during cleaning, move with respect to target surface.Binding can adopt one or more anchor clamps to realize.The anchor clamps that are suitable for can be according to the US 6,305,046 of co-assigned; 6,484,346 and/or 6,651,290 make.As other a kind of selection, said pad can link or adopt the hook-loop fastener to link removedly with the adhesion mode.Suitable cleaning tools, including sales by the assignee Swiffer

Sweeper, Swiffer

WetJet

and Swiffer

SweeperVac

.

This type of cleaning pad also can use with water, perhaps is used for other clean solution with the chip on the solubilising floor.Said pad can be wetted and/or can cleaning fluid be assigned on the floor from reservoir.A method for cleaning and mats from the replaceable cleaning fluid reservoir distribution tools include applicable sales by the assignee of Swiffer WetJet

tool.This kind instrument can be according to the US6 of co-assigned, and 386,392 make.As other a kind of selection; The preparatory moisturizing cleansing pad that is suitable for comprises by this assignee to be sold and according to the US 6 of co-assigned; Swiffer

the Sweeper Wet Cloths of 716,805 manufacturings.

Cleaning pad keeps clean solution is transferred to the chip of pad/possibly be difficult to remove from the floor from the defeated clean solution of dig pass and scouring or the dual-use function of spot.Yet, can not satisfy this dual-use function best through the single surface of cleaning pad.The surface that is suitable for cleaning fluid is seen through therein is not optimum for cleaning chip, and vice versa.

A solution of this problem provides two kinds of material different, and every kind of material all has for the task that liquid is seen through therein or cleans the task of chip and the surface that is optimised.Yet this solution has been brought even more problem.Make sheet have two kinds of materials and increased stock and assembly cost.Assembling may be carried out improperly, thereby causes waste product.Even assembling is correct, the additional step of assembling these two kinds of materials can make to produce as a part of producing cleaning pad and slow down, thereby increases cost once more.

Therefore, need keep punching to make the better cleaning pad.A kind of this type of effort is shown in cleaning pad of the present invention.

Summary of the invention

The present invention includes a kind of cleaning pad that is used to be attached to the head of burnisher.Said pad comprises egative film and the dough sheet that engages with face-to-face relation, has absorbent core between said egative film and the said dough sheet.Said dough sheet comprises integrated piece, and said integrated piece comprises having the first area passed therein in the hole and from it outwards and a plurality of outstanding second area that extends away from core have.

The accompanying drawing summary

Fig. 1 is the top plan view according to cleaning pad of the present invention, and said clean surface upwards towards, partly show with profile.

Fig. 2 is the vertical cross-section diagram along the pad shown in Figure 1 of line 2-2 intercepting.

Fig. 3 is the perspective illustration that is suitable for making of the present invention equipment.

Fig. 4 is the line profile figure of instantaneous sectional view of the dough sheet of expression cleaning pad shown in Figure 2.

Detailed Description Of The Invention

Referring to Fig. 1 and 2, cleaning pad 20 according to the present invention can comprise a plurality of layers of engaging with face-to-face relation with limit the XY plane and with the Z direction of its quadrature.Each layer can comprise according to surface layer of the present invention 21, absorbent core 24 and egative film 22.Randomly, egative film 22 can outwards have the adhesive attachment thing on the surface.

The intersection point place of the axis T that longitudinal axes L that the center that is limited at, the center of cleaning pad 20 is provided with and center are provided with.Longitudinal axes L and axis T limit the two dimensional surface of cleaning pad, shown in embodiment in, said two dimensional surface is associated with horizontal (CD) with vertically (MD) respectively, as this area is common know.

Egative film 22 can be impermeable of any liquid, yet pliable and toughly can give said pad enough intensity.A kind of suitable egative film 22 can be processed by the layered product of spunbond/meltblown fiber, as is known in the art.

Optional core 24 can be and can keep fluid and any layer of delivery of fluids randomly.Fluid can perhaps can be transferred to surface to be cleaned from core 24 from just being transferred to core 24 in clean Surface through surface layer 21.Core 24 also can comprise like absorbent gelling material known in the art to increase its capacity.The pad 20 that is suitable for generally can be according to the United States Patent (USP) 5,960,508 of co-assigned; 6,003,191; 6,101,661 and/or 6,766,552 instruction is made with core 24.If desired, can comprise that the second optional top flat 27 is to improve the intensity of fluid transmission and dough sheet 21.

Surface layer has first area 12 and second area 14, and the first area comprises a plurality of holes, and second area comprises the deformity out of plane that can be a plurality of convexities of outstanding 31.Said two

zones

12,14 distinguish through shape characteristic kind set in each zone.Dough sheet 21 is contacts of cleaning pad 20 in use and cleans the for example assembly on floor of target surface.Dough sheet 21 is whole.So-called whole other expectation assembly that is meant dough sheet 21 or cleaning pad 20 is to be formed and be not to process through two independent assemblies are joined together by single raw material.

Specifically, hole 28 is set at and the extensible first area 12 of passing surface layer 21, the hole can be enough greatly (for example, each at least about 1 to 2mm ²) so that relatively the fluid of thickness flow through surface layer 21 and flow in the absorbent core 24 and less than 8 to 9mm ²So that seepage minimizes.First area 12 can roughly be arranged on the center of cleaning pad 20, and second area 14 can be set at outside the first area 12, or vice versa, makes that second area 14 is placed in the middle to be provided with and first area 12 is arranged on its outside.In another embodiment, first area 12 and second area 14 can be overlapping have hole 28 and plane evagination and go out 31 the two zones to provide.

Embodiment shown in Fig. 1 has following architectural feature: outstanding 31 extend in the Z direction from the neighboring area of cleaning pad, and hole 28 is provided with by placed in the middle simultaneously.This arrangement provides following beneficial effect: the head that is tended to be applied at the center burnisher by the user through the shank of burnisher with the external force of compress mode transmission.Through make Z direction distortion in the XY plane away from the shank setting, compression stress more is evenly distributed in the XY plane.When being used in combination with the cleaning pad 20 of Fig. 1, it is more even to it is believed that this power distribution relatively more uniformly can make across the compression of the head of burnisher.The stress distribution that it is believed that this improvement can be improved the cleaning of target surface then and make the use of cleaning pad 20 more thorough.

Outstanding 31 can be set in the second area 14 of surface layer 21.In general, so-called " outside the plane " is meant on " Z " direction and extends, and be as shown in Figure 2.In Fig. 2, outstanding 31 ratios with exaggeration show, still should not think to have specific size restrictions.Unique design of the size to outstanding 31 considers it is relevant those of clean up task with expectation.For specific surface layer 21, possible is, and outstanding 31 height (Z direction) can be uniformly; In other embodiments, alterable heightization is for example through increasing greatly along with the distance apart from longitudinal centre line L becomes.Outstanding 31 can extend about 0.5 to about 4 millimeters on the Z direction, and about 1 to about 3 millimeters.In one embodiment, outstanding 31 generally are set at the outside of first area 12, as shown in Figure 1.

As illustrated in fig. 1 and 2, outstanding 31 can comprise the convex ridge of predetermined length, and said predetermined length ratio is like the length much shorter of the cleaning pad that records along longitudinal centre line.In an embodiment as shown in Figure 1, outstanding 31 be with outstanding 31 form the pattern of diamond shape regular pattern be provided with, each diamond shape includes a plurality of outstanding 31.Like this, outstanding 31 can help the scouring ability.In general, each outstanding 31 machine-direction oriented length that records that can have along them, said length between the length of the cleaning pad that records along longitudinal axis 1% and 50% between.Each outstanding 31 can have spacing on the XY plane, make from the first area 12 any part not have not interrupting channel to any vertical side of cleaning pad 20.

For the surface layer on disposable absorbent article and the cleaning pad 20, surface layer 21 can comprise like non-woven material known in the art.Absorbent core 24 can comprise absorbent material and thin-film material respectively similarly with egative film 22, as known in the art.The second optional surface layer can be used as Distribution Layer with distributing fluids on the XY direction.

Dual clean beneficial effect part of the present invention is owing to the hole 28 and outstanding 31 of the zone of dispersion that forms surface layer 21.Hole 28 provides the unimpeded relatively fluid of cleaning fluid and even viscous fluid to flow.Outstanding 31 of convexity can be served as a plurality of independent fluid obstacle things; Any free fluid that each fluid obstacle thing all effectively postpones to have the trend that flows out surface layer 21 when cleaning pad 20 is used flows, and does not form the overall obstruction that fluid is assigned to the Outboard Sections of cleaning pad 20.In addition, outstanding 31 can play texturing cleaning piece springy work in order to help removing chip from target surface.

As shown in Figure 2, hole 28 makes fluid flow cross surface layer 21.Usually, the inner surface of surface layer 21 contacts with absorbent core 24 to flow in the core 24 with allowing fluid high-effective.Outstanding 31 of hole 28 and discrete projecting parts also can add elasticity ductility to surface layer 21.

Although all protruding outstanding 31 are shown as alignment in the vertical, yet protruding outstanding 31 can be orientated by any desired configuration.Hole 28 and other pattern of outstanding 31 comprise that for example the zone of dispersion at cleaning pad 20 centers has the hole all within the scope of the invention, and zone of dispersion does not extend to any periphery edge.Equally, hole 28 can present the striated pattern with outstanding 31, and said striped roughly in the horizontal, in the vertical, orientation or with their combination alignment diagonally.First area 12 can comprise cleaning pad 20 width about 30% to about 90%, perhaps about 40% to about 80%.

Fig. 3 shows the equipment that is used to make the surface layer of the present invention 21 that is applicable to confession cleaning pad 20.Surface layer 21 can be on equipment 100 be formed by the two-dimentional nonwoven precursor web 200 of general plane; Said equipment can be used to carry out continuous fleece processing with respect to vertical (MD) and horizontal (CD) orientation, as known usually in the field of non-woven webs.Precursor web 200 had formed a plurality of fusion weakening parts 115 in presumptive area before getting into roll gap 116.Fusion weakening part 115 emerges in presumptive area through in the presumptive area of fleece 200, carrying out the focus calendering, and presumptive area is corresponding to the first area 12 of surface layer 21, that is, wherein final expectation has the zone in hole 28.Each fusion weakening part 115 of presumptive area can be roughly elongated and/or is directed in the vertical.When the stretching in the horizontal in that part of with zone 113 is corresponding of equipment 100, fusion weakening part 115 breaks and forms hole 28.Fusion weakening part 115 can be restricted to the center of fleece 200, that is, and and corresponding to the first area, center 12 of cleaning pad among Fig. 1 20.

Equipment 100 can comprise pair of

rolls

102 and 104, and each roller all rotates around the A that parallels to the axis, and equipment 100 is similar to the equipment described in the following patent in many aspects: the United States Patent (USP) 5,916,661 of authorizing people's such as Chappell co-assigned; 5,628,097 and 5,518,801 and the U.S.2004/0127875 that announces with people's such as Hammons name.Through the two is combined in the equipment with in a surface layer 21, form hole 28 with outstanding 31 the two, cleaning pad 20 of the present invention provides significant cleaning and the fluid treatment beneficial effect that is superior to the prior art cleaning pad.In addition, this type of surface layer 21 provides these beneficial effects of getting along good with monolithic floor surface 21, thereby further provides convenience and cheap manufacturing.

Equipment 100 shown in Figure 3 can comprise roller 102, and it has the ridge 106 of a plurality of circumferential extensions of being opened in 108 minutes by groove, as disclosed in the above-mentioned patent and as knowing in " ring-rolling " field.Second roller 104 that is meshing with each other comprises first area 113, and the first area has the roller 102 of coupling basically and has the ridge of being opened in 108 minutes by groove 106.

Roller

102 and 104 intermeshing ridge 106 increase progressively stretch precursor web 200 to form hole 28 with groove 108, like United States Patent (USP) 5,916, and disclosed that kind in 661 and 5,628,097.Certainly, before the roll gap 116 of precursor web 200 access arrangements 100, fusion atenuator region 115 forms in precursor web 200.

Except zone 113, roller 104 also can have two zones 111, and zone 111 comprises the ridge with tooth 110, and toothed ridge was opened by groove in 112 minutes.The ridge 106 of roller 102 is meshing with each other to form outstanding 31 of second area 14 with the groove 112 of roller 104.About 0.7 to 13 millimeter, particularly about 1.5 millimeters pitch can be used to second area 14.About 0.7 to 13 millimeter, particularly about 2.5 millimeters pitch can be used to first area 12.Roller 102,103 can have about 0.5 to 26 millimeter engagement amount, and is irrelevant with pitch.

Surface layer 21 has first area 12, and it limits through having a plurality of isolated holes 28 on the both sides of surface layer 21.Second area 14 outstanding 31 limits the said outstanding integral body extension that can be the fiber of precursor web 200 what separate on a plurality of spaces.

An advantage of the above equipment 100 is that surface layer 21 can use online production of other production equipment that is used to produce this based article on the production line.The unit operations that disclosed equipment 100 can be used as existing production line is for example made.As unit operations, this kind equipment 100 can be by modularization so that it can easily be replaced.When as the production line of cleaning pad 20 a part of, need be wide more a lot of as the roller 102,104 of element than product self, thus relatively easy installation is provided and removes.Therefore, the various patterns of can minimum interference realizing first area 12 and second area 14.

Fig. 4 shows the line profile figure according to exemplary cleaning pad 20 of the present invention.In this embodiment, first area 12 roughly is provided with respect to cleaning pad 20 between two parties.Second area 14 is set at the outside of first area 12, is in from first area 12 to extend to the zone with the longitudinal edge adjacent areas of cleaning pad 20.

In the second area 14 outstanding 31 is used for cleaning or the chip that gets loose from target surface.28 in hole in the first area 12 is used for absorbing the liquid cleaner that is deposited on the target surface and chip is retained on the cleaning pad 20.Pad 20 then can be dropped with chip.

Dimension disclosed herein is not intended to be understood that strictly to be limited to described exact value with other value.On the contrary, except as otherwise noted, each such value all is intended to represent the value of being quoted and centers on the scope that is equal on the function of this value.For example, the dimension that is disclosed as " 40mm " is intended to expression " about 40mm ".

Only if clearly get rid of or in other words restriction to some extent, each file of quoting among this paper comprises any cross reference or related patent U.S. Patent No. or patent application, all incorporates this paper in full into way of reference in view of the above.To quoting of any document all be not to recognize that its be this paper disclosed or receive claims protections any invention prior art or admit that it proposes, advises or disclose any this type of to invent independently or with the mode with any combination of any other one or more lists of references.In addition, if any implication or the definition conflict mutually of same term in any implication of term or definition and any document of incorporating this paper with way of reference in this document will be as the criterion with the implication or the definition of giving that term in this document.

Although illustrate and described particular of the present invention, it should be apparent to those skilled in the art that and under the situation that does not break away from essence of the present invention and scope, can make many other change and modification.Therefore, accompanying claims is intended to contain all these changes and the modification that is in the scope of the invention.

Claims

1. cleaning pad (20) that is used to be attached to the head of burnisher, said pad comprises:

Egative film (22) and dough sheet (21) with face-to-face relation joint; Has absorbent core (24) between said egative film (22) and the said dough sheet (21); It is characterized in that; Said dough sheet (21) comprises integrated piece, and said integrated piece comprises the first area (12) that has the hole and pass therein and have the second area (14) of a plurality of outstanding (31) that said a plurality of outstanding (31) outwards and away from said core (24) extend from said second area (14).

2. cleaning pad as claimed in claim 1 (20); It is characterized in that; Said cleaning pad (20) is the essentially rectangular shape; It is isolated than short that it has two isolated longer edges and two, and it is isolated than short that each in said egative film and the said dough sheet all has two isolated longer edges and two, and the said longer edges of said egative film extends outwardly into outside the said longer edges of said dough sheet.

3. cleaning pad as claimed in claim 2 (20) is characterized in that, the border is positioned between said first area (12) and the said second area (14), and the said border between the second area (14) of said first area (12) and said adjacency is straight basically.

4. like claim 2 and 3 described cleaning pads (20), it is characterized in that in the middle of two second areas (14), wherein in each said second area (14) is all with each said longer edges and put said first area (12).

5. like claim 2,3 and 4 described cleaning pads (20), it is characterized in that the width between said longer edges and said first area (12) is 30% to 90% of a said width.

6. like the described cleaning pad of aforementioned each claim (20), it is characterized in that said first area (12) and said second area (14) are adjacency.

7. as the described cleaning pad of aforementioned each claim (20), it is characterized in that said first area (12) have hole (28), and aperture area about 1 to the scope of about 9 square millimeters/hole.

8. as the described cleaning pad of aforementioned each claim (20), it is characterized in that said second area (14) has and stretches out about 0.5 to about 4 millimeters outstanding (31).

9. like the described cleaning pad of aforementioned each claim (20), it is characterized in that said first area (12) and said second area (14) are overlapping.

10. like the described cleaning pad of aforementioned each claim (20), it is characterized in that said first area (12) limit said second area (14) basically.

11. like claim 1,2,3,4,5,6,7 and 8 described cleaning pads (20), it is characterized in that, said first area (12) and said second area (14) do not had said a plurality of outstanding (31) and do not have said hole (28) but visual discrimination the zone separately.

12. cleaning pad as claimed in claim 11 (20) is characterized in that, said second area (14) limits said first area (12) basically.

13., it is characterized in that said pad is by wetting in advance like the described cleaning pad of aforementioned each claim (20).

14. as the described cleaning pad of aforementioned each claim (20); Said cleaning pad is attached to burnisher removedly; Said instrument comprises shank and the head that is attached to said shank, and wherein, the said egative film (22) of said cleaning pad (20) is attached to said head.