CN1705466A - Semi-hydrophobic cover for an absorbent product - Google Patents

Semi-hydrophobic cover for an absorbent product Download PDF

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Publication number
CN1705466A
CN1705466A CN 200380101863 CN200380101863A CN1705466A CN 1705466 A CN1705466 A CN 1705466A CN 200380101863 CN200380101863 CN 200380101863 CN 200380101863 A CN200380101863 A CN 200380101863A CN 1705466 A CN1705466 A CN 1705466A
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CN
China
Prior art keywords
goods
layer
hydrophilic
cladding material
feminine care
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Granted
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CN 200380101863
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Chinese (zh)
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CN100379398C (en
Inventor
M·M·斯罗达
B·D·巴布科克
P·A·米奇莱尔
H·A·索雷博
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Kimberly Clark Worldwide Inc
Kimberly Clark Corp
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Kimberly Clark Worldwide Inc
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Publication of CN1705466A publication Critical patent/CN1705466A/en
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Publication of CN100379398C publication Critical patent/CN100379398C/en
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  • Orthopedics, Nursing, And Contraception (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

An absorbent feminine care article (40) can include a liquid-permeable cover (62); and an absorbent member (66) which is operatively joined with the cover (62). The cover (62) can include a hydrophilic first layer portion (68) operatively joined with a relatively less hydrophilic, second layer portion (30). The second layer portion (30) can be positioned on a bodyside of the article (20); and the first layer portion (28) can be positioned between the second layer portion (30) and the absorbent member (66).

Description

The semi-hydrophobic cover that is used for absorbent products
Technical field
Generality of the present invention relates to absorbing products.More particularly, the present invention relates to absorbability, feminine care goods, as the feminine care pad.
Background technology
The variety of way and the absorbing products various in style that are used for the absorption of health transudate such as menstrual fluid through configured are called optical imaging.For the feminine hygiene health care, prior art provides the feminine hygiene of two kinds of fundamental types to protect product: be developed the sanitary towel that wear the outside on genital area and be developed to be positioned in the vaginal canal and the effusive tampon of prevention menstruation.Trial both architectural feature is incorporated in the equipment of single type hybridization type feminine hygiene protection equipment also the someone advised, but do not see significant acceptance level.The ability that realizes suitable advantage is affected because of more significantly preserving of 26S Proteasome Structure and Function shortcoming.Also advised other less invasive device.This kind equipment has been labia or interlabial equipment, and embodies feature in having some parts, and the latter remains on the outside of wearer's vestibule at least in part.Other even the littler equipment worn at interlabial by female wearer have also been produced.In addition, some arrangement architectures have been arranged, it has taken into account the use of the use of labia or interlabial equipment and other absorbability, feminine hygiene health-care products.
Common feminine hygiene health care system, as previously discussed those can't provide the comfortable and/or absorbability of desired level, especially for slight stream protection.As a result, still need to suck liquid more quickly and provide bigger discreteness simultaneously and the feminine care goods of lower seepage.
Summary
The inventor have realized that in the prior art and in response inherent deficiency and problem, at absorbability, the feminine care goods of exploitation innovation, as having carried out deep research in the absorbability labial pad.In general, the absorbent feminine care goods can comprise the permeability for liquids cladding material; With realize effective bonded absorption component with this cladding material.This cladding material can comprise with the low hydrophilic second layer partly realizes effective bonded hydrophilic ground floor part.Aspect special, second layer part can be configured on the bodyside of goods; And the ground floor part can be between second layer part and absorption component.
In others, this cladding material can comprise with low hydrophilic second nonwoven fabric layer realizes effective bonded hydrophilic first nonwoven fabric layer.In others, first and second nonwoven fabric layers can enough spunlaced one-tenth cloth methods come lamination, and can bore a hole selectively.
By various aspects and the feature of introducing it, goods of the present invention can have been kept the quick suction of liquid, low seepage and low stimulate required comprehensive better.As a result, the present invention can help to improve the absorbability characteristic of goods and help to provide bigger convenience and comfortableness for user.
Accompanying drawing
Above-mentioned and further feature of the present invention, the aspect, the narration below reading of configuration and advantage can obtain after claim and the accompanying drawing understanding better, wherein:
That Fig. 1 has shown is that the part of the representational feminine care goods of the present invention is analysed and observe, push up planar view.
Figure 1A has shown the view of the representative cross section of the feminine care goods of describing in Fig. 1.
Fig. 2 has shown the women's who illustrates external genitalia simplification dissection viewgraph of cross-section typically.
The women's of the environment (as being provided by labial pad) that illustrates the feminine care goods simplification dissection viewgraph of cross-section has been provided Fig. 2 A representativeness.
Fig. 3 representativeness has shown the reduced graph of the placement that illustrates the plug-in type feminine care goods with breach, and this breach is positioned on that part of the most close female clitoris of this article periphery.
Fig. 4 representativeness has shown the top view of a version that illustrates the feminine care goods of arranging with general flat situation.
Fig. 5 representativeness has shown the viewgraph of cross-section that the 5-5 line along it of feminine care goods shown in Figure 4 intercepts.
Fig. 6 representativeness shown illustrate have cover layer, back sheet and be clipped in cover layer and back sheet between submissive assembly or the viewgraph of cross-section of another version of the feminine care goods of element.
Fig. 7 representativeness has shown the top view of an example that illustrates breach, and this breach is positioned on the periphery of the feminine care goods of arranging with general flat situation.
Fig. 8 representativeness has shown the top view of another example that illustrates breach, this breach be positioned on the periphery of another version of the feminine care goods of arranging with general flat situation and
Fig. 9 representativeness has shown the top view that illustrates another example with a plurality of breach, these breach be positioned on the periphery of another version of the feminine care goods of arranging with general flat situation and
Figure 10 representativeness has shown the top view that illustrates another example again with a plurality of breach, these breach be positioned on the periphery of another version of the feminine care goods of arranging with general flat situation and
Figure 11 representativeness has shown the viewgraph of cross-section of another version again that illustrates the feminine care goods.
Figure 12 representativeness has shown the viewgraph of cross-section that illustrates the version of Figure 12 on the position of selected, abundant bending.
Figure 13 for example understands the representative zoomed-in view of another version of the feminine care goods that bend fully along main shaft.
Figure 14 for example understands the enlarged drawing of representational, the exaggeration bend fully along main shaft and caught the goods that are placed in the vestibule by wearer's finger.
Figure 15 has shown the feminine care goods of arranging with general flat situation and have the representative system in one or more lappets (tab) zone.
Figure 16 shows the representative cross section of the feminine care goods with one or more lappets zone.
Figure 17 has shown that representative contrast is by the absorbefacient diagram of the improvement that goods provided of introducing notion of the present invention.
Describe in detail
Also should be noted that, when being used for disclosure thing, wish it is the term of opening from " comprising (comprises) ", " comprising (comprising) " and other term of deriving that the source term " comprises (comprise) " and derives from, it has been stipulated the existence of any described feature, element, integer, step or component and has not been wished to get rid of the existence or the increase of one or more further features, element, integer, step, component or their group.Should notice also being pointed out that in each figure of accompanying drawing, similarly part is represented with identical reference character.
" disposable " is included in single and goes out of use after using and do not wish to be washed and to re-use.
" hydrophilic " described fiber or the fiber surface by the liquid, aqueous institute moistening that contacts with fiber.The degree of wetting of material can and then be explained according to the liquid that involved and the contact angle and the surface tension of material.Being suitable for measuring the equipment of wettability of special fibrous material and technology can be by Cahn SFA-222 surface force analyzer system, or substantially the same system provides.When with this systematic survey, the fiber with the contact angle that is lower than 90 ° is represented as " wettable " or hydrophilic, and the fibring with the contact angle that is equal to or greater than 90 ° is " non-wetable " or hydrophobic.When contrast material, the material ratio that forms big contact angle with water has lower hydrophilic with the material that water forms less contact angle.
Here this term of Shi Yonging " adhesive-bonded fabric or the net width of cloth (web) " refers to have and interweaves (interlaid) into the net but do not resemble in knitted fabric the net width of cloth with the structure of identifiable mode those single fibers into the net or line.The adhesive-bonded fabric or the net width of cloth can form from many methods such as meltblowing method, spunbond method and bonding carding method.The basic weight of adhesive-bonded fabric is represented with micron usually with material/every square yard (osy) of ounce or gram/every square metre (gsm) expression and useful fibre diameter usually.(it is pointed out that and osy be multiply by 33.91 when osy is converted to gsm).
Here this term " meltblown fibers " of Shi Yonging refers to the fiber that formed by following method: the thermoplastic of fusing is passed a plurality of tiny (circular usually) mouthful mould capillary tube be expressed into as the line of fusing or long filament and converge in high flow rate (heat usually) gas (for example air) stream, this air-flow makes the long filament of molten thermoplastic material become very thin and reduces their diameter that this diameter may diminish to the microfibre diameter.Thereafter, the fiber that melts and sprays is entrained and be deposited on and collect the net width of cloth that has formed the meltblown fibers of random dispersion on the surface by high velocity air.These class methods for example are disclosed in people's such as Butin the US patent 3,849,241.Meltblown fibers is continuous or discrete microfibre, be generally less than on the average diameter 10 microns and when being deposited on to collect the surface generally be viscosity when going up.
" spun-bonded fibre " refers to by molten thermoplastic material is extruded formed small diameter fibers as long filament from a plurality of meticulous capillary tube of spinneret.These class methods are disclosed in people's such as people's such as Appel for example US patent 4,340,563 and Matsuki the US patent 3,802,817.This fiber also can have such as those shapes in people's such as for example Hogle US patent 5,277,976, and this patent has been described the fiber with unconventional shape.
Here " the liquid entanglement chydroentangling " of Shi Yonging refers to a kind of process, in this process nonwoven web or nonwoven web the layer under sufficiently high energy level, accept incompressible fluid for example the effect of the liquid stream of water reach the time that is enough to make its fibre matting.When the net width of cloth is supported by network structure, this fluid advantageously from more than the net width of cloth several inches (centimetre) distance with at about 200-5000psig (14-351kg/cm 2Gauge pressure) pressure between uses.This method is described in detail in people's such as Evans the US patent 3,486,168, and this patent is hereby incorporated by reference.The non-woven fabric fiber network width of cloth that carries out the liquid entanglement for example is known as " spun laced process " fabric.
" bonding carding fiber net " refers to the fibrous web made from short fiber, and this short fiber is transferred and passes combing or carding apparatus, and this device separates short fiber or division and alignment and form the generally machine-direction oriented fiber non-woven net width of cloth in the vertical.This material can be bonded in together by the method that comprises point bonding, runs through air-flow bonding, ultrasonic adhesive binder bonding etc. and so on.
" air lay method " is the well-known method that can form the fiber matting layer.In the air lay method, it is separated and be embedded that to deposit to forming screen then in the supply air flow neutralization online to have a fine fibre bundle of the typical length in about 52 millimeters (mm) scopes of about 3-, and the auxiliary of evacuation arranged usually.Random sedimentary fiber is then by for example using hot-air or spray adhesive to be adhered to one another.The air lay rule is as at the US patent No.4 that is issued to people such as Laursen, instruction arranged in 640,810.
" feminine care goods " refer to have carried out for the absorption of health transudate such as urine, menses, vaginal fluid etc. the product of functional configured, as sanitary towel, and knickers liner, tampon, interlabial equipment, microstructure body etc.
" target area " refers to common zone or position of exporting dunghill by the wearer on the personal care product.
With reference to figure 1 and 1A, absorbent feminine care goods 40 can comprise the cladding material 62 of permeability for liquids; With realize effective bonded absorption component 66 with cladding material 62.This cladding material 62 can comprise with low hydrophilic second layer part 30 realizes effective bonded hydrophilic ground floor part 68.Aspect special, second layer part 30 can be configured on the bodyside of goods 20; And ground floor part 28 can be between second layer part 30 and absorption component 66.
In yet another aspect, this cladding material 62 can comprise the single adhesive-bonded fabric of the second main opposed face part of the reverse side that has the first main opposed face part and be in the first main opposed face part.The hydrophilic ground floor part 28 of cladding material can partly be provided by first opposed face; Can partly provide by second opposed face with the low hydrophilic second layer part 30 of cladding material.In addition, hydrophilic first opposed face of cladding material part can comprise surfactant.
On the other hand, cladding material 62 can comprise with low hydrophilic second nonwoven fabric layer, 30 laminations or realize effective bonded hydrophilic first nonwoven fabric layer 28 in addition.For example, the nonwoven fabric layer of cladding material can tangle with liquid, spun laced process operates combination.Second nonwoven fabric layer 30 of cladding material can be positioned on the bodyside of goods 20; And first nonwoven fabric layer 28 of cladding material can be between second nonwoven fabric layer 30 and absorption component 66.Aspect special, in first and second nonwoven fabric layers 28,30 one or both can bore a hole.The additional aspect of cladding material can comprise that configured is hydrophobic second layer part 30 basically.In the architectural feature of making us desireing, the feminine care goods can provide disposable absorbent article through configured.
With reference to figure 2 and 2A, pudendum refers generally to outside female sex organs, comprises nympha, labium majus, clitoris 60 and vestibule 42.The point that vestibule 42 is considered to be in the afterbody that approximately is in external genitalia labial commissure portion 44 begins, extand rearward to back labia associating portion 46 and by bottom 48 circles of vestibule in the interior zone of in labia, determining.Those skilled in the art fully understand, and have between each women with respect to nympha and the relative size of labium majus (both have determined the profile of vestibule 42 relatively) and the various variations for the shape.Yet for the purpose of this narration, this type of difference does not need specially to solve, and recognizes that under any circumstance no matter the feminine care goods are placed among the vestibule 42 with placement that need be between labium majus and relevant nympholabial any this type of consideration.Be positioned at vestibule 42 afterbody be perineum 50, the latter guides to the anus 52 in buttocks 54 zones.Within vestibule 42 itself is main apparatus urogenitalis, for relevant here purpose, the latter be per vaginam mouthfuls 56, urethra hole 58 and clitoris 60 form.Provided the aforementioned simplified summary of this anatomic region and clear, generally vestibule 42 has been thought the zone between back labia associating portion 46 and clitoris 60 for convenience's sake in order to help illustrating.Yet, for the narration more comprehensively of this part of female anatomy, with reference to Henry Gray's Anatomy of the Human Body, Thirtieth American EditionCarmine D.Clemente ed., Lea ﹠amp; Febiger, 1985, at the 1571-1581 page or leaf.
Fig. 3 for example understands representational feminine care goods with diagram method, and labial pad or other interlabial equipment 40 are for example arranged, and it is to show with expansion basically or smooth configuration before in being placed in wearer's vestibule.Interlabial equipment can be chosen wantonly and comprise at least one absorbability assembly.In addition, this interlabial equipment can carry out configured being placed between the labium majus, and can be through configured so that in use stretch at least partially in the vestibule 42 of female wearer.
These feminine care goods, for example labial pad, microstructure body or other interlabial equipment 40 can be arranged in the vestibule 42 at least in part so that stop up vestibule region and blocking-up or the undesirable motion of restrictive substance from the pudendum-vaginal area of women's user effectively in addition effectively effectively.Make us desirably, this interlabial equipment or other feminine care goods can fully be placed in the vestibule region basically.These feminine care goods can be chosen wantonly and carry out configured so that absorbing products to be provided, and it can be used in guarantees that selected liquid sucks and reservation as the expection from vaginal orifice 56 effusive menstrual fluids or other liquid.In addition, the feminine care goods can be chosen absorption and the storage of urinary incontinence device to be used for urine as a type wantonly, and this is that solution minority women incontinence is needed.In special arrangement, the feminine care goods can carry out configured so that hinder the undesirable motion of selected processing material from pudendum-vagina scope effectively, when interlabial equipment is placed in user/wearer's the interlabial space.In another architectural feature, these feminine care goods can be through configured so that be inaccessible effectively and essentially no absorbefacient and be infiltrative effectively and absorbefacient as urine, vaginal fluid etc. for selected processing material at least for common body fluid.When these feminine care goods comprised interlabial equipment, these goods can comprise add-on assemble.For example, interlabial equipment can be attached on the another kind of feminine care goods or carry out configured in addition or the use that combines with another kind of feminine care goods, as is used to keep the feminine care absorbent pad of urine, menses and/or other vaginal fluid.
The example of known interlabial equipment is described in US patent 4,595,392 (title is " INTERLABIAL PAD ", people such as Russell L.Johnson, announcement on June 17th, 1986) and in US patent 4,743,245 (title is " LABIAL SANITARY PAD ", people such as Frederich O.Lassen announced on May 10th, 1988).Whole disclosures of these files are hereby incorporated by reference in the mode that is consistent with this paper.
Inter-labium pad also is described in US patent application serial number No.10/036, and 990, title " LABIAL PAD HAVING A NOTCH ", people such as James J.Hlaban, the application (application attorney docket No.17,694) on the 31st of calendar year 2001 December; With at US patent application serial number No.10/036,635, title " LABIAL PAD HAVING A NOTCH ", people such as Ronald L.Edens, calendar year 2001 December 31 days application (application attorney docket No.17,698).Whole disclosures of these files are hereby incorporated by reference in the mode that is consistent with this paper.
As illustrating in Fig. 4, representative feminine care goods (for example this interlabial equipment 40) can have the main longitudinal axis (L) that generally moves towards along X-direction.Here the term of Shi Yonging " vertically " refers to be positioned at line, axle or the direction of the principal plane of feminine care goods, and work as the feminine care goods just in use, generally (for example align arrangement with vertical plane, approximately be parallel to) vertical plane, this vertical plane is divided the female wearer of standing equally and is health left and right sides two halves.This is vertically generally shown by the x-axle in Fig. 4.These feminine care goods also have main transverse axis (T).The term of Shi Yonging " laterally " here, " side direction " or " y-direction " general reference general with vertical vertical line, axle or direction.This side direction is generally shown by the y axle in Fig. 4, and typically generally is parallel to the representative plane of goods.Should " z-direction " generally be parallel to line, axle or the direction of aforesaid vertical plane typically, and be generally perpendicular to vertically (x axle) and laterally (y axle).The z-direction is generally shown by the z-axle in Fig. 5.It generally is the orientation of pointing to wearer's head that this term " makes progress ", and term " downwards " or " down " generally are the orientations of pointing to wearer's foot.For the discussion here, each layer of feminine care goods, for example, cladding material 62, tergite or retaining pull 64 and/or compliant component 66 (for example Fig. 6), have upwards or in the face of the surface of health and to lower surface, the latter also be described as with upwards or in the face of the surface of the surface opposite of health.Compliance assembly 66 deflection sufficiently, molding, folding and/or be shaped so that required resilience or other compliance to be provided, the selectivity configured that allows the feminine care goods effectively is to satisfy individual's predetermined application.Aspect special, this compliance assembly can be shaped selectively so that realize in wearer's vestibule region that interlabial is put and can be configured to realize the storing of the user decision of feminine care goods in wearer's interlabial space and adaptive as configuration again selectively by wearer individual.The result, the profile of compliance element and feminine care goods can specialized designs in case more effectively with wearer individual's body contour coupling, with can be provided with so that provide special adaptive by the user, thereby the precalculated position that can more effectively keep selected processing material.This compliance assembly 66 can be chosen the absorbability capacity with selected level wantonly, and can do configured with provide work, absorbability matrix or absorbent core.
As described in Fig. 6, representative article (for example illustrational interlabial equipment 40) can comprise the cladding material or the top sheet layer 62 of permeability for liquids, the retaining of liquid impermeability is pulled or back sheet 64 effectively, and the compliance assembly 66 between cladding material and retaining are pulled effectively.This compliance assembly 66 can optional configuration be designed to absorbability matrix or absorbent core, and can have composite construction.As shown in FIG. 7, compliance assembly 66 and goods can have first stub area 70, second stub area 72 respectively separately and be positioned at central area 74 between first and second stub areas 70,72.The feminine care goods have suitable size and shape, so that allow at least a portion of feminine care goods be positioned within the vestibule 42 of female wearer.In addition, these goods can stop up and block selected processing material, menstrual fluid, urine or other health transudate flowing from wearer's vaginal orifice 56 and/or urethral orifice 58 at least in part.
This compliance assembly 66 and therefore these feminine care goods can generally demonstrate the geometry that extends between at interval the one 76 and the 2 78 transverse end areas at a certain distance.Total geometric shape is that following note is finished: compliance assembly 66, with therefore feminine care goods, also comprise between transverse end areas 76, the the one 80 and the 2 82 vertical side at interval at a certain distance between 78, these are generically and collectively referred to as side on every side sometimes here, promptly define those of periphery.
The geometry of compliance assembly 66 is to influence the overall size of feminine care goods (for example interlabial equipment 40) and the key factor of efficient.In general, this compliance assembly 66 can have Breadth Maximum (W Max), measured along the line that generally is parallel to main transverse axis (T) with extending to relative vertical side 82 from a vertical side 80, and minimum widith (W Min), measured along second line that also generally is parallel to main transverse axis (T) with extending to relative vertical side 82 from a vertical side 80.Therefore, compliance assembly 66 can have the minimum width that is not less than about 5mm, is higher than about 70mm most; Though the general width of compliance element can be according to especially general design and its predetermined placement in the vestibule 42 of female wearer of feminine care goods change.Those of skill in the art can easily recognize, some version of compliance assembly 66 and therefore some version of feminine care goods can have and equal its Breadth Maximum (W Max) minimum widith (W Min).Under this type of situation, generally only need reference Breadth Maximum (W Max).
This compliance assembly 66 can have greatest length (L Max), line main longitudinal axis (L) and that extend to another transverse end zone 76,78 from a transverse end zone is measured along generally being parallel to.Therefore, compliance assembly 66 can have and is not less than about 40mm to the length that is not higher than about 120mm; Though the substantial distance of compliance element 66 can be according to especially general design and its predetermined placement in the vestibule 42 of female wearer of feminine care goods change.Those of skill in the art can easily recognize, some version of compliance assembly 66 and therefore some version of feminine care goods can have and equal its greatest length (L Max) minimum length (L Min).In this type of situation, as at least as shown in Fig. 4, general reference greatest length (L only Max).Have and minimum length (L Min) unequal greatest length (L Max) the version of compliance assembly 66 and the version of feminine care goods in Fig. 7 to 10 and Figure 15, illustrate at least.
Be similar to this compliance assembly 66, these feminine care goods 40 can have the Breadth Maximum of about 70mm at the most, and can have the greatest length of about 120mm at the most.In addition, these feminine care goods can have minimum widith that is no less than about 5mm and the minimum length that is no less than about 60mm.
First end regions 70 and second end regions 72 minimally have separately extended the greatest length (L that is equivalent to the compliance assembly in 74 outside transverse end zones 76 and 78 towards compliance assembly 66 respectively from the central area Max) be not less than about 30%; Additionally, be not less than about 20%; Or in addition, be not less than about 10% distance.First end regions 70 and second end regions 72 74 have outwards extended the greatest length (L that is equivalent to the compliance assembly towards the transverse end zone 76 and 78 of compliance assembly 66 from the central area separately to greatest extent respectively Max) be not higher than about 20%; Additionally, be not higher than about 30%; Or in addition, be not higher than about 40% distance.Therefore, stub area 70,72 can occupy the greatest length (L of compliance assembly 66 Max) minimum about 20% to the most about 80%; Though the approximate size of first and second stub areas can be according to especially general design and its predetermined placement in the vestibule 42 of female wearer of feminine care goods change.
These feminine care goods (as interlabial equipment 40) can randomly have enough absorptions and keep scheduled volume and the body fluid of type or the capacity of transudate through configured.This absorptive capacity can be provided by compliance element 66, or can be provided by liquid holding element or absorbent core.This absorbent core can be the part of compliance element 66, maybe can be the element that provides separately that exists with the compliance element.In special architectural feature, absorber can be structure or the closed relatively structure with closure formation of smaller aperture structure.For selected body fluid, as urine or menstrual fluid, this compliance assembly 66 or other absorption component can have the minimum absorptive capacity that is not less than about 1 gram liquid (for example menses analogies)/every gram absorber (1g/g) and can have about 30g/g or more heap(ed) capacity; Though the approximate volume of absorber can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.Those of skill in the art will easily realize: super absorbent polymer or cated super absorbent polymer can be added in the compliance assembly 66, therefore improve absorptive capacity fully.
This compliance assembly 66 have to upper surface or in the face of the surface of health and to lower surface or with this upwards or in the face of the surperficial facing surfaces of health, and can comprise the material that can absorb and/or adsorb and keep one or more health transudates afterwards.Suitable material can generally be a hydrophilic also, and is compressible, mouldable and/or compliance.This compliance assembly 66 can form by those any materials known to the skilled from this area.This type of examples of material comprises, but be not limited to, mixture, absorbent foam, absorbable sponge, super absorbent polymer, cated super absorbent polymer, fibre bundle or the nits of wooden paper pulp fiber, airlaid material, textile fiber, polyester and the polypropylene fibre of the polylayer forest of various natural or synthetic fibers, the cellulose wadding that creases, fluffy cellulose fibre, artificial silk or other material of regenerated cellulose, wooden paper pulp fiber or pulverizing, or the combined material of any equivalent material or these materials.What also be fit to is to give hydrophilic hydrophobic material according to any method that is used for many known methods of this type of purpose.Yet the total absorptive capacity of compliance assembly 66 and the design transudate load and the intended purpose of feminine care goods adapt.In addition, the size of compliance assembly 66 and absorptive capacity can change.Therefore, the size of compliance assembly 66, shape and configuration can change, and for example, absorber can have different thickness, as at least described in Figure 11 and 12, but or the possess hydrophilic property gradient, maybe can contain super absorbent polymer or the like.
Compliance assembly 66 generally has along the measured thickness of the line that generally is parallel to the z-axle (thickness), slide calliper rule thickness (caliper) or height H, as at least as shown in Fig. 5.The minimum thickness of compliance assembly 66 typically is not less than about 0.5mm.Additionally, compliance assembly 66 can have about at the most 10mm or more maximum ga(u)ge; Though about thickness of absorber can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.The slide calliper rule thickness of material is at 0.05psi (3.5g/cm 2) pressure measure down, and can be enough can be from being positioned at Jedburg, the STARRETT bulk tester that the LS Starrett Company LTD of firm of Scotland is purchased is measured by long measure (for example millimeter).Additionally, can use the test set of equivalence basically.
Compliance assembly 66 also can have lower density to help to improve comfortableness.Generally, this absorber can have and is no more than about 0.5g/cm 3Maximal density.Compliance assembly 66 also can have and is not less than about 0.01g/cm 3Minimum density.In addition, the big density of absorber can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.In the arrangement of making us desireing, the density of compliance assembly can be at least about 0.05g/cm 3, and/or can be no more than about 0.2g/cm 3, so that the improvement characteristic to be provided.
Compliance assembly 66 can have the maximum basis weight of about at the most 600 gram/every square metre (gsm).Compliance assembly 66 also can have and is not less than about 0.1g/m 2Minimum basis weight.In addition, the roughly basic weight of absorber can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.The object lesson of suitable absorption body is similar to and is used for KOTEX board knickers liner and can be from Kimberly-ClarkCorporation, Neenah, Wisconsin, coforming (coform) material that the mixture by polypropylene and cellulose fibre that USA obtains is made.
Various materials can be used to form compliance assembly or element 66.In the configuration of being desireed, this material is mouldable effectively with shapable.This type of material can comprise, for example, and perforate or closed-cell foam material, sponge material, fibrous material, gel rubber material, absorbent particles, absorbent particles or the like, and their conjugate.
Optional back sheet or retaining are pulled 64 and typically are present on the bottom surface of compliance assembly 66, and can constitute from any material of desireing.In special arrangement, this tergite or retaining are pulled layer 64 can become liquid impermeability effectively through configured.Make us desirably, it can be ventilative property through configured that this retaining pulls 64.Therefore, retaining is pulled and can be allowed air and water vapour running out of from compliance assembly 66, blocks passing through of health liquid simultaneously.This retaining pull 64 in addition configured for biodegradable basically.Suitable retaining is pulled the polymeric film that examples of material is miniature embossing, and as polyethylene, polypropylene or polyester have minimum thickness that is not less than about 0.025mm and the maximum ga(u)ge that is not more than about 0.13mm.Also can use bicomponent film, and the woven fabric and the adhesive-bonded fabric that become the liquid impermeability through handling.The example of another kind of suitable material is the closed cell polyolefin foam body.Closed-cell polyethylene big gun foam also can use.
This retaining pull 64 can by with all or part of of adjacently situated surfaces bonded to one another keep and compliance assembly 66 between fixed relationship.Known to the skilled various adhesive methods in the prior art field can be used to realize any this type of fixed relationship.The example of these class methods can include, but not limited to ultrasonic Treatment, heat bonding, or binding agent is by various patterns applying between two abutment surfaces.The specific examples that retaining is pulled material be similar on KOTEX board knickers liner, use and can be from Pliant Corporation, Schaumburg, Illinois, the polyethylene film that USA obtains.
Should have upper surface and lower surface by optional top sheet or top layer cladding material 62, wherein upper surface typically contacts wearer's health and accepts the health transudate as configured.In addition, cladding material can become permeability for liquids effectively through configured.Cladding material 62 ideally by flexibility and the non-irritating materials of organizing in the vestibule 42 of female wearer are formed.Here the term of Shi Yonging " flexibility " is meant compliance and that follow body surface easily or the material that responds of easy deformation under external force.
Cladding material 62 can provide compliance and comfortableness for the wearer through configured, and can choose wantonly through configured the guiding of health transudate is left wearer's health and flowed to compliance assembly 66.Cladding material 62 should will seldom or at all not have liquid to be retained in its structure with achieving one's goal, ideally relative comfort and the non-irritating surface that the process configured provides and the bodily tissue in the vestibule 42 of female wearer is close to.Cladding material 62 can be the material that is worked by any, and as membrane material, woven material, non-braided material etc., and their conjugate is formed.In addition, cladding material can be made configured and the health liquid that becomes by contact cladding material surface is penetrated easily.The example of suitable material comprises rayon fabrics, the bonding carding fiber net width of cloth of polyester, polypropylene, polyethylene, nylon or other hot cohesible fiber, polyolefine material, as polypropylene and poly copolymer, linear low density polyethylene, aliphatic (acid) ester such as polylactic acid, polymeric film, the diaphragm of meticulous perforation, net materials etc., and their conjugate.Other example of suitable material is the composite of polymer and nonwoven fabric material.This composite typically generally by polymer-extruded to the net width of cloth of spunbonded materials formed integrated piece form.This permeability for liquids cladding material 62 can be chosen wantonly and contain many holes (not shown), partially or even wholly forms in tectal Z-direction thickness.These holes can, for example, improve body fluid and penetrate into speed in the compliance assembly 66.
Also can use the cladding material of physiology hydration.Here the term of Shi Yonging " (the physiologically hydrous) of physiology hydration " maintains the tissue of vestibule 42 and a kind of cladding material of the suitable wetting interface between the feminine care goods when being meant in being in the vestibule environment; Satisfied a kind of cladding material of the comfort requirement relevant with fabric or the insertion of fabric like structure body in the moistening bodily tissue environment of vestibule well, remembered the following fact: the feminine care goods can be accepted by the body fluid of vestibule migration and can arrange to guide this body fluid in the absorption component of compliance assembly 66 or other use.Therefore, although before using, non-" hydration " arranged on traditional sense, because this cladding material is exsiccant at this moment, but cladding material 62 has kept in vestibule 42 needed suitable moisture or balance or has not interfered this suitable moisture or equilibrated keeping at least.
Cladding material 62 can be chosen wantonly and comprise inorganic agent so that design the desired properties of cladding material selectively.This inorganic agent can specifically assist to provide or keep the moistening of the home or the assistance raising labial region of labia.This inorganic agent can contain or not contain the skin care active composition.This preparaton can, for example, help to reduce the rubbing action in put procedure or alleviate the drying of the inner surface of wearer's labia.The example of suitable cladding material is disclosed in people's such as F.Lassen US patent No.4, and in 846,824, on July 11st, 1989 was authorized (application attorney docket No.6657.4), and its whole disclosure is introduced into for reference in the mode consistent with this paper.
Randomly, covering 62 can have handling so that handled part has more hydrophilic selected at least part with surfactant on its surf zone.This can allow the easier cladding material 62 that penetrates of body fluid of introducing, the especially processing region of cladding material.This surfactant also can reduce following probability: the body fluid of introducing, as menstrual fluid, flow out from cladding material 62 rather than absorbed by compliance assembly 66.Surfactant can be brokenly or put on discontinuously touch or cladding material 62 surfaces of the upwards body side surface of in addition overlapping compliance assembly 66 on.In the configuration of being desireed, surfactant can be applied on the more hydrophilic relatively layer 28 of cladding material.This surfactant can be evenly distributed on fully in addition touch or at least a portion on the surface of the cladding material of the upper surface of in addition overlapping compliance assembly on.
Yet, be positioned at common hydrophilic cladding material on absorbent core or other absorption component or lining assembly allow under many circumstances liquid from core upwards once more towards wearer's migration and " rewetting " wearer's skin.It can also allow liquid to be deployed into the side of pad from the target area, and the zone of Wu Raning is much larger than the shown zone that goes out of the pad that is for example covered by film like this.These are considered to be in the remarkable negative factor in the design of disposable personal care product, because they can cause the pollution of clothes and bedding and make the wearer feel uncomfortable.
In order to overcome this situation, common absorbing products has comprised that the hydrophobic layer that is placed under the hydrophilic lining is to reduce the ability that liquid upwards moves from the moistening core.For example, common structure has comprised the fiber lining, and wherein hydrophilic perforated nonwoven tissue layer is carried out lamination with liquid entanglement method and hydrophobicity perforated nonwoven tissue layer.In addition, this hydrophilic nonwoven fabric layer has been on the bodyside of goods, and the hydrophobic nonwoven layer has been between hydrophilic nonwoven fabric layer and the absorbing material.For example, referring to US patent application serial number No.09/990,787, title " COVER SHEET FOR PERSONAL CARE PRODUCTS ", application on November 14 calendar year 2001 (application attorney docket No.16,791), it applies for PCT/US02/13530 (application on April 30th, 2002) corresponding to PCT.Also referring to PCT patent publications WO00/71067, title " FLUID INTAKE INTENSIFIER ", on November 30th, 2000 published.
With common inverted configuration, the inventor has been found that it is desirable to the first relative more hydrophilic layer part or layer 28 configured is the absorbability face in the face of clothes of cladding material assembly.In addition, advantageously the second low hydrophilic layer part or layer 30 are arranged as the bodyside part of estimating to contact with the wearer cladding material assembly 62 of placement.Therefore, more hydrophilic layer part 28 can be placed and remain between second layer part 30 and the absorption component 66.This configuration can further improve the absorbance of liquid.
The relatively more hydrophilic layer part 28 of cladding material 62 can be helped to remove liquid and this liquid is guided to absorption component from the bodyside of cladding material towards absorption component 66 placements.In addition, relatively more hydrophilic layer part can help more effectively dispense liquid, imbitition and liquid is distributed on the whole absorption component from the target area of goods.The relatively more hydrophilic layer part 28 of cladding material 62 can also provide more effective pore volumes, and the liquid of introducing can temporarily be stored in the voidage before the absorbability element absorbs.
Cladding material 62 can comprise having the first main opposed face part and the relative second main opposed face adhesive-bonded fabric of single-piece basically partly.The hydrophilic ground floor part 28 of cladding material can partly be provided by first opposed face of adhesive-bonded fabric and the low hydrophilic second layer part 30 of cladding material can partly be provided by second opposed face of fabric.In additional architectural feature, this hydrophilic ground floor part can comprise surfactant.For example, cladding material 62 can be an adhesive-bonded fabric, and it comprises as the covering blank of KOTEX board knickers liner with from Sandler Corporation, the bonding carded web width of cloth of being made up of polypropylene and polyethylene (BCW) that Germany obtains.With the surfactant of the consumption that works (CETIOL1414E surfactant for example, can be from being positioned at Cincinnati, Ohio, the COGNISCORPORATION of company of USA is purchased) put on appointment first opposed face of adhesive-bonded fabric, thus the needed relatively more hydrophilic layer part 28 of cladding material is provided.
Cladding material 62 can additionally comprise first nonwoven fabric layer and second nonwoven fabric layer.First nonwoven fabric layer can carry out configured so that the hydrophilic ground floor part 28 of cladding material to be provided; Can pass through configured so that the low hydrophilic second layer part 30 of cladding material to be provided with second nonwoven fabric layer.Therefore, second nonwoven fabric layer can be positioned on the bodyside of goods, and first nonwoven fabric layer can be between second nonwoven fabric layer and selected absorption component.
Cladding material 62 can be chosen wantonly and comprise the nonwoven fabric layer that is incorporated into effectively on the polymer film, or realizes effectively bonded first polymer film with second polymer film.The specified bodyside layer of cladding material configured effectively is low hydrophilic, with the specified absorption material side layer of cladding material effectively configured be relative more hydrophilic.
Another kind of again configuration can comprise cladding material 62, wherein first perforated nonwoven tissue layer configured and the hydrophilic ground floor part 28 of cladding material is provided; With second perforated nonwoven tissue layer configured and the low hydrophilic second layer part 30 of cladding material is provided.Therefore, the second perforated nonwoven tissue layer can be positioned on the bodyside of goods, and the first perforated nonwoven tissue layer can be between second nonwoven fabric layer and selected absorption component.
When two or more when layer that independently provide are provided cladding material 62, these layers can wait combination by any effective technology such as chemical bonding, heat bonding.Yet, required arrangement can comprise cladding material 62, wherein first nonwoven fabric layer and second nonwoven fabric layer have been laminated on together by a kind of method or are combined together in addition, and this method is carried out the liquid entanglement with first adhesive-bonded fabric and second adhesive-bonded fabric.Therefore, first and second nonwoven fabric layers can come effectively in conjunction with forming composite by using the laminating method that does not involve chemical bonding or heat bonding operation.
Aspect special, first and second layers (28,30) of cladding material 62 a kind of or both can bore a hole.The perforation of low hydrophilic layer 30 can overcome the problem that the tendency that hinders liquid to pass through by low hydrophilic layer is brought.Relatively more the perforation of hydrophilic layer 28 can allow liquid arrive from the body side surface of cladding material 62 for absorbent core provides quick, unimpeded approach.In case liquid passes this hole, this liquid can be deployed under the hydrophobic layer and enter in the absorbent core (for example absorbability compliance element 66).Because this hole is the very little percent of the surface area of multilamellar cladding material 62, be upward through them and the amount of the liquid that goes back significantly less than the amount of the liquid that is upward through common hydrophilic lining.
After the perforation of the component layers of laminated material can be tangled at the liquid of the fiber of cladding element 62, in the process or before carry out, this discusses below.Can align with the hole in the second layer 30 and arrange or do not line up arrangement in hole in the ground floor 28 of cladding material.Make us desirably, the fiber in cladding element liquid after tangling is bored a hole laminated material.Perforation can be undertaken by any method well known in the prior art, forms this material comprising mechanical needle perforation, punching or in the mode that produces hole.This hole also can be used for producing by making of high-pressure water jet, and this carries out finishing when liquid tangles at fabric.The surf zone of lining can produce the zone of opening of 10-50% through perforation, more particularly between 20-40% and more particularly about 25%.
Replace chemical bonding or hot adhesion method, liquid entanglement method can be produced the composite laminates that is substantially free of the melting fiber cross point in conjunction with the use of each layer.This has been avoided hindering the formation than large crumb of the thermoplastic of fluid motion.Water under high pressure entanglement method also is used in and removes non-resistant hydrophilic surface inorganic agent in the course of processing from hydrophobic layer.
This relatively more hydrophilic layer 28 can comprise natural hydrophilic fiber such as cotton and staple fibre, maybe can comprise synthetic fibers, the latter is natural hydrophobic, but has given this fiber hydrophilic after treatment.If this fiber is to be processed into hydrophilic synthetic fibers, then inorganic agent must be durability to withstand the harshness influence that liquid tangles.The whole fibers that do not require this one deck are hydrophilic, as long as this layer mainly is hydrophilic.This layer can be made up of the mixture of fiber.
Fiber (making the second low hydrophilic layer 30 from it) can comprise natural hydrophobic fibre, as synthetic polymeric fibers.Do not require that this second layer is a hydrophobicity, as long as the second layer is low hydrophilic.More particularly, the second layer wishes than ground floor lower hydrophilic is arranged.The second layer can be from the fiber of single type, or the mixture of fiber makes.As mentioned above, the liquid entanglement procedure also can be used in the course of processing from the not durable hydrophilic surface conditioning agent that applies before hydrophobic layer is removed, and it is hydrophobic therefore it to be become once more.
Can make from any on-woven making method well known in the prior art for fiber matting layer used in the present invention, comprising the carding method of air lay method, spunbond method, meltblowing method and short fiber.Each nonwoven fabric layer can have individual layer, and basic weight arrives about 3osy (about 8.5g/m at about 0.25 ounce/every square yard (osy) 2To about 102g/m 2) in the scope.
Synthetic fibers comprise from polyolefin, polyamide, polyester, acrylic resin, LYOCELL regenerated cellulose, those fibers that Lenzing viscose rayon yarn and any other suitable hydrophobic synthetic fibre well known by persons skilled in the art are made.Many polyolefin can be used for fiber production, the ASPUN  681 1A linear low density polyethylene of polyethylene such as Dow Chemical for example, and 2553 LLDPE and 25355 and 12350 high density polyethylene (HDPE)s are these type of suitable polymers.This polyethylene has, respectively, and about 26,40,25 and 12 melt flow rate (MFR).The polypropylene of fiber formation usefulness comprises the T-1001 of Kolon Glotec, the PF304 of the ESCORENE PD 3445 of Exxon ChemicalCompany and Montell Chemical Co..Other polyolefin also is available.Have than the low melting point polymer component fibers, image conjugate and biconstitutent fibre are fit to use equally.This type of fiber comprises the conjugate fibre of polyolefin, polyamide and polyesters, as the core-skin type conjugate fibre that obtains with trade name T-255 and T-256 from KoSa Inc. (Charlotte, North Carolina).
Natural fiber comprises Pilus Caprae seu Ovis, cotton, Caulis et Folium Lini, hemp and wood pulp.Wood pulp comprise the fluffy level of standard softwood as CR-1654 (US Alliance Pulp Mills, Coosa, Alabama).Paper pulp can modification, with the inherent character of fortifying fibre and their processing characteristics.
Relatively more hydrophilic layer wishes to make from hydrophilic fibre, and can comprise the mixture of hydrophilic fibre and a spot of hydrophobic fibre.This hydrophilic fibre should be with about 50-100%, more particularly 70-100wt% and more particularly the amount existence of 80-100wt%.
This low hydrophilic layer mainly has hydrophobicity or low hydrophilic fiber.The low cost of polypropylene fibre makes it become the good selection of this series products, and can use the polypropylene fibre of similar 100wt% consumption.The mixture that polypropylene and other fiber resemble PET is feasible equally.
In special architectural feature, cladding material 62 can comprise the spun laced process material.This spun laced process cladding material can comprise the adhesive-bonded fabric of mechanical adhesion, and wherein the fiber of cellulosic net tangles by means of the tiny jet of air or liquid, to realize the interlocking of fiber and fibre structure.This method usually is called as the entanglement method.If water is as Working liquids, then this method is called liquid entanglement method.Compare with other adhesive-bonded fabric, the entanglement material has significant textile-like performance.Additionally, the performance of entanglement material can be by suitably selecting the type of fiber, fibre blend, the entanglement degree is used for the structure of the base material of Muller's fibers matter net in entanglement procedure, or the like change easily.
For purpose of the present invention, the method of fibre blend and manufacturing is selected spun laced process cladding material production fluid body perforation in next life, that liquid tangles, wherein the one side of cladding material mainly comprises the fiber of hydrophilic nmature, and the another side of cladding material mainly comprises the fiber of low hydrophilic nmature.Therefore, the one side of cladding material will have more hydrophilic than the another side of cladding material.Utilize the contact angle test of water to can be used in the hydrophilic nmature of measuring material." hydrophilic " material is general to form 90 degree or the following contact angle of 90 degree with water, and " hydrophobicity " material general with water formation greater than 90 contact angles of spending.When contrast material, the material ratio that forms big contact angle with water has lower hydrophilic with the material that water forms less contact angle.
Because the small size of labia or microstructure system product, and in the process of wearing its orientation, importantly it utilizes its absorptive capacity as much as possible.In the process of wearing, the microstructure body is worn bendingly, and wherein lappet faces down rather than be smooth.Therefore, if the not performance effectively of the suction of microstructure body and distribution function, then gravity can cause too early seepage.Because the existence of rayon fiber on a side of PET/PP fiber and the existence that allows to lead to some holes of artificial silk layer in its lower section, make this PET/PP aspect to wearer's health if cladding material is orientated on absorbing products, then still can realize fluidic quick suction.With cladding material orientation so that relatively more hydrophilic side (for example artificial silk side) is that the improvement of fluid on the whole absorbent core of product distributes in the face of the advantage of the absorbent core of microstructure body.Allow relatively more hydrophilic side (for example artificial silk side) can have better interaction in the face of absorbent core between cladding material and absorbing material.This artificial silk or other hydrophilic fibre can directly contact at least a portion of absorption component, and also can help from the health side of cladding material to the continuous hydrophilic gradient of absorbent core.Therefore, this microstructure body more can be displaced fluid from the top PET/PP layer of cladding material, absorbs along artificial silk layer generation core sucting action with by cotton/artificial silk absorbing material.
In the configuration of being desireed, the part that works at least of cladding material 62 directly contacts with compliance, absorbability assembly 66 with cloth postpone basically through configured.Cladding material 62 can by with all or part of of adjacently situated surfaces bonded to one another keep and compliance assembly 66 between fixed relationship.Known to the skilled various adhesive methods in the prior art field can be used to realize any this type of fixed relationship.The example of these class methods comprises, but be not limited to, binding agent applies with various patterns between two abutment surfaces, the various piece of the abutment surface of the various piece at least of the abutment surface of absorbing material and cladding material is tangled, or allow the various piece at least of abutment surface of cladding material be fused on the various piece of abutment surface of absorbing material.
Cladding material 62 typically remains on the upper surface of compliance assembly 66, but additionally can surround and this absorbing material of corral partially or even wholly.Additionally, cladding material 62 and this retaining are pulled 64 and can be had the periphery outside the periphery that extends outwardly into compliance assembly 66 and can be combined together to form outer ledge zone 84 at periphery, as at least as shown in Fig. 6.By utilizing known technology, for example gluing, shrinkage, heat-sealing etc., this marginal area 84 can intactly form, and makes the whole periphery of compliance assembly 66 be drawn a circle to approve by their joint portion.Additionally, cladding material 62 and retaining are pulled 64 and can be divided the ground combination in peripheral upper portion along the selected portion of whole periphery.In order at utmost to reduce the wearer's of feminine care goods the stimulation and/or the probability of discomfort, what require marginal area 84 and these feminine care goods is soft with this edge next-door neighbour's zone at least, compressible and be obedient to.Make us desirably, this marginal area 84 can have the minimum widith that is not less than about 0.5mm and can have the Breadth Maximum of about 10mm at the most.In addition, the general width of any marginal portion can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.In other optional embodiments, cladding material 62 and/or retaining are pulled 64 and can be had the periphery that links to each other basically with the periphery of compliance assembly 66.
Be positioned on the main longitudinal axis (L) of compliance assembly 66 or be arranged essentially parallel to this main longitudinal axis (L), also optional have a required bending axis.Required bending axis generally moves towards in the vertical, promptly along the x-direction, and with selected distance and this main longitudinal axis (L) off-center.Make us desirably, required bending axis is arranged along this main longitudinal axis (L) alignment.Additionally, bending axis can extend to the greatest length (L that is equivalent to compliance assembly 66 Max) about 40-100%.Required bending axis can be naturally from the size of compliance assembly 66, shape, and/or configuration forms, or the compliance assembly can possess the axle that weakens or zone to produce required bending axis.Required bending axis also can form by any technology as known in the art, comprising, for example, line, pre-folded is cut slit, embossing etc.Though required bending axis here is described to be present on the compliance assembly 66, those skilled in the art easily recognize, required bending axis can be at cladding material 62, retaining pull 64 and/or this absorbing material in form; Pull middle formation at cladding material and this retaining; In cladding material and this absorbing material, form; Or retaining pull with absorbing material in form.When existing, required bending axis typically allow feminine care goods (for example interlabial equipment 40) in the vestibule 42 that is positioned over female wearer before more easily the bending.
The feminine care goods also have along the measured thickness of the line that generally is parallel to the z-axle (thickness), and slide calliper rule thickness (caliper) or height H are as at least as shown in Fig. 5 and 6.The minimum thickness of feminine care goods can be to be not less than about 0.5mm; The highest thickness can be about at the most 10mm; Though the roughly thickness of feminine care goods can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.
Feminine care goods (for example interlabial equipment 40) can be chosen wantonly and carry out configured, in the vestibule 42 that is placed on female wearer before, along being in or to be parallel to an axle of main longitudinal axis (L) folding, as at least at Figure 12, shown in 13 and 14.When along this axle when folding, these feminine care goods will form recess 92, prevent from the time of in the feminine care goods are placed on vestibule 42 that the wearer from pointing to tarnish.In case insert, the feminine care goods tend to launch fill this vestibule and therefore keep the upper surface of feminine care goods to contact with the bodily tissue of vestibule 42 with attempt.These feminine care goods can be also when folding institute along axle resilience skew takes place, with the unfolded trend of raising feminine care goods.Additionally, the compliance assembly 66 of feminine care goods can become thicker along its longitudinal edge, as shown in Figure 12 and 13, therefore the biasing effect has been described also as at least, if desire, it typically allows the upper surface of feminine care goods touch the tissue of vestibule 42.Yet here the feminine care goods of Miao Shuing keep contacting with the bodily tissue of the vestibule 42 of female wearer without any need for additional architectural feature.The natural moist surface of the tissue of vestibule 42 typically demonstrates the tendency that maintenance contacts with the upper surface of feminine care goods.
As indicated such, the wearer can be along folding these feminine care goods of axle that are in or are parallel to main longitudinal axis (L) before being placed on the feminine care goods in the vestibule 42.This wearer can, therefore, folding feminine care goods are remained on vertical side, as at least as shown in Figure 14.These feminine care goods are applied power and are placed in the vestibule 42 with being in by the finger in the folding formed recess 92 of feminine care goods by the wearer then.
As at least at Fig. 3, shown in 7 to 10 and 15, compliance assembly 66 and therefore the feminine care goods can be provided at least one breach 100 that extends internally from periphery.Here the term of Shi Yonging " breach " refers to the periphery along material, the layer of material, the space that distributes on other composite of the laminated material of material or material, depression or hollow region.Because the compliance assembly 66 and the therefore a lot of possible geometry of feminine care goods, may show hardly where this breach 100 should be arranged on go the feminine care goods of particular configuration design and can't find out that these special feminine care goods are among use.Yet, determine, when be at least the feminine care goods near that part of clitoris 60 time, breach 100 can help farthest to realize a kind of probability: when the feminine care goods are placed in the vestibule 42 of female wearer, the feminine care goods will keep and the female wearer clitoris between big spacing relation.This spaced relationship can farthest reduce following probability: therefore the tactiosensible clitoris 60 of feminine care goods prevents caused zest of too much contact and perhaps painful frictional property effect between clitoris and feminine care goods.
In addition, introducing and the desirable gap regions of desirable gap regions in the feminine care goods can both allow the wearer control the use of feminine care goods better near the setting of clitoris.In aspect special, gap regions can be made configured and be on wearer's urethra in ordinary and common use avoiding basically.After the configured, these feminine care goods can more effectively maintain the position in vestibule after the process neutralization of urinating like this.As a result, when the feminine care goods were removed and/or replace, the wearer can have more controls.In addition, these feminine care goods can automatically or uncontrollably not break away from from vestibule in the process of urinating and when need changing.More controls to the disengaging of feminine care goods can make these goods use more convenient and more economically.
Also determine, when gap regions 100 be positioned at least the feminine care goods near the periphery of that part of perineum 50 on the time, this breach can help farthest to reduce following probability: the feminine care goods produce stimulation during with responsive perineal region.This is considered to for some wearer is important, when perineal region be extremely sensitiveization or because in birth process, tear or cut sth. askew and when sewing up, they use this feminine care goods in a minute puerperium.Yet it should be noted that even nonparous those wearers that promptly perineal region is not subjected to or experiences stretching, tears or cut sth. askew, and may have extremely sensitive perineal region yet in birth process.
Compliance assembly 66 and therefore these feminine care goods can comprise from the transverse end zone at least one breach 100 that 76,78 at least one periphery extends internally.This breach 100 can, for example, be in or be adjacent to the main longitudinal axis (L) of compliance assembly 66 basically.Additionally, this breach 100 can be in or be adjacent to required bending axis basically.This breach 100 also can make women's care article for compliance assembly 66 provides nature bending or crooked line, when along this line bending or bending, and more easily bending or crooked.When having at least one breach 100 in the periphery that is in each relative transverse end zone 76,78, this is considered to especially like this when compliance assembly 66 (for example according at least at Fig. 9,10 with shown in 15).As shown in, compliance assembly 66 and/or this goods can have at least two breach 100 that are in the article periphery.For example, on the axle of goods or the opposite end of line or near this opposite end, a breach (for example Figure 16) can be arranged.In the time of when these feminine care goods are placed in the vestibule and on breach 100 is near the periphery in the transverse end zone of clitoris 60 at least, this configuration can help at utmost to reduce the probability of the tactiosensible clitoris in feminine care goods zest ground.
Though this paper front is described as can be randomly being bent along the axle that is in or be parallel to main longitudinal axis, feminine care goods (for example interlabial equipment 40) also can be the vestibule 42 that is placed on female wearer in before along being in or being parallel to spool being bent of main transverse axis (T).When along this axle when folding, these feminine care goods typically form recess 92, prevent from the time of in the feminine care goods are placed on vestibule 42 that the wearer from pointing to tarnish.In case insert, the feminine care goods tend to launch fill this vestibule and therefore keep the upper surface of feminine care goods to contact with the tissue of vestibule 42 with attempt.These feminine care goods can be also when folding institute along axle resilience skew takes place, with the unfolded trend of raising feminine care goods.Therefore additionally, the compliance assembly 66 of feminine care goods can become thicker along its transverse end zone 76,78, has also demonstrated the biasing effect, and if necessary, it typically allows the upper surface of feminine care goods touch the tissue of vestibule 42.Yet here the feminine care goods of Miao Shuing keep contacting with the tissue of the vestibule 42 of female wearer without any need for additional architectural feature.The natural moist surface of the tissue of vestibule 42 typically demonstrates the tendency that maintenance contacts with the upper surface of feminine care goods.
At another version, compliance assembly 66 and therefore feminine care goods comprise at least one breach 100 that extends internally from least one periphery of vertical side 80,82.This breach 100 can, for example, be in or be adjacent to the main transverse axis (T) of compliance assembly 66 basically.This breach 100 also can make women's care article for compliance assembly 66 provides nature bending or crooked line, when along this transverse axis or line bending or bending, and more easily bending or crooked.When having at least one breach 100 in the periphery that is in each relative vertical side 80,82, this is considered to especially like this when compliance assembly 66 (at least at a version shown in Figure 10).When these feminine care goods were placed in the vestibule, breach 100 in the time of on being near the periphery of vertical side of clitoris 60 at least, at utmost reduced the probability of the tactiosensible clitoris in feminine care goods zest ground.
Make us desirably, the size of this breach 100 is enough at utmost reduce following probability: when the feminine care goods suitably were placed in the vestibule 42 of female wearer, the feminine care goods kept zests to contact with clitoris 60 and/or perineum 50, as required.In other words, this breach 100 wishes to have a kind of size that is enough at utmost reduce following probability: as required, when the feminine care goods suitably are placed in the vestibule 42 of female wearer, the feminine care goods will keep and clitoris 60 and/or perineum 50 between abundant spaced relationship.
This breach 100 suitable peripheries from compliance assembly 66 certain depth that extends internally is according to the result who approximately vertically measures with the periphery of absorbing material, terminal edge.For example, this breach 100 can have the lowest depth that is not less than about 2mm and can have the depth capacity of about 30mm at the most; Though the approximate depth of breach can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.
This breach 100 also has certain width, and its wideest part is typically at least along the circumferential distribution of compliance assembly 66.Make us desirably, this breach 100 has the Breadth Maximum of about 30mm at the most and is not more than the minimum widith of about 0.5mm; Though the width that causes of breach can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.
When according to described here when making configured, this breach 100 can have various geometries, comprising U-shaped, and V-arrangement, W shape, semicircle or their various combinations.Several examples of possible breach 100 geometries are shown in several figure.Yet, nonrestrictive and only be the several examples that are suitable in many geometries of breach 100 described here when it will be appreciated by those skilled in the art that here the breach geometry of confirming.
Breach 100 of the present invention can be positioned on the periphery of the compliance assembly 66 with various geometries and therefore have on the periphery of feminine care goods of various geometries.The example of this type of geometry of the assembly of these goods and goods can include, but not limited to rectangle, and is avette, ellipse, rhomboid, circle, semicircle, triangle, square, teardrop shape, rhombus, polygon, butterfly, pyriform, heart, or the like, and their any effective combination.
Suitable interlabial equipment also is described in the US patent application serial number No.10/036 of people's such as Heather A.Sorebo title for " LABIAL PAD HAVING A TAB ", in 981, and the application (attorney No.17,692) on the 31st of calendar year 2001 December.Whole disclosures of these files are hereby incorporated by reference in the mode that is consistent with this paper.
For Figure 15 and 16, feminine care goods (for example interlabial equipment 40) can comprise from least one vertical side 80,82 outward extending at least one storing of feminine care goods and remove the lappet zone 94 of usefulness.As required, each lappet zone can comprise or not comprise the correspondent section of absorbent material 96.Although such lappet 94 conceptive for feminine care goods such as labial pad storing and to remove be effective, but can believe, at least two lappets 94 and 94 ', promptly each the vertical side 80,82 from the feminine care goods extends a lappet, in the storing of feminine care goods with to remove be more effective.Therefore, in the following discussion, unless otherwise mentioned, these feminine care goods can have at least two lappets 94,94 '.Although optional, this lappet 94,94 ' can be identical, or more suitably, is mirror image each other.Therefore, the narration of first lappet will be the corresponding narration of any other lappet.So clearer in order to show, the discussion of any other lappet will be removed.Corresponding element is represented by reference number and the reference number that adds apostrophe in the accompanying drawings.
Stretch out from vertical side 80,82 of feminine care goods, this lappet 94 can have any suitable configuration.The non-limitative example of the shape of lappet 94 comprises: avette, and ellipse, rhomboid, rectangle, triangle, rhombus, circle, semicircle, or analogous shape, and their any conjugate.This lappet 94 can integrally form with the feminine care goods or it can be the element that provides separately that is attached on the feminine care goods.One of ordinary skill in the art will readily recognize that when lappet 94 was the individual component that is incorporated on the feminine care goods, this lappet can come combination by many known methods, merge comprising fusing, bonding, or other combination.This phrase " integrally forms " and means lappet 94 is cladding materials 62, and retaining pulls 64, the continuous extension of compliance assembly 66 or similar assembly, and the continuous extension of this type of combination of components thing.
This lappet 94 has along the line measured lengths of the main longitudinal axis that generally is parallel to the feminine care goods (L) with along the measured width of line of the main transverse axis (T) that generally is parallel to the feminine care goods.This lappet 94 has enough sizes to assist women's user and be placed on the feminine care goods in the vestibule 42 and randomly, the feminine care goods to be taken out from vestibule.This phrase " enough sizes " means this lappet 94 and can catch between forefinger and thumb, if or when two lappets are for example arranged, between forefinger and thumb and middle finger and forefinger, catch.Typically, the length 94 of lappet is not more than the greatest length (L of compliance assembly 66 Max).Those of skill in the art will readily appreciate that the length of lappet 94 will be according to especially the general design and the predetermined placement of feminine care goods in the vestibule 42 of women's user of feminine care goods change.
Except that having length, this lappet 94 also has width.Those of skill in the art will readily appreciate that the width of lappet 94 will be according to especially the general design and the predetermined placement of feminine care goods in the vestibule 42 of women's user of feminine care goods change.
The size of lappet 94 only is subjected to the restriction of the stress-strain characteristics of lappet material.Make us desirably, be used for lappet 94, any material in 94 ' is soft, compressible and be obedient to and therefore be similar to cladding material 62 at fluid permeability, the retaining of liquid impermeability pull 64 and/or compliance assembly 66 in the material that uses.Any this type of material wishes to do configured at utmost to reduce the wearer's of feminine care goods the stimulation and/or the probability of discomfort.In addition, the lappet material should have enough intensity and integrity and so that lappet is booked goods is placed on one's body the wearer.
This lappet 94 can be provided with on all places of vertical side 80,82 of feminine care goods.For feminine care goods 40 described here, this lappet 94 can be positioned in first end regions, 70, the second end regions 72 or the central area 74.Second lappet 94 ' is in first end regions, 70, the second end regions 72 or the central area 74 along relative vertical side 80,82 simultaneously.Generally, when lappet 94 when the special area 70,72,74 of vertical side 80,82 stretches out, any second lappet 94 ' typically stretches out from the respective regions 70,72,74 of relative vertical side 80,82.Also should point out, depend on the length of lappet 94, this lappet can cover in the zone described here 70,72,74 more than one.Lappet described here 94,94 ' catches lappet to assist that labial pad is placed on chance in the vestibule for female wearer provides.In addition, lappet 94,94 ' also catches lappet to take out the chance of labial pad and therefore at utmost reduced following probability with assistance for female wearer provides: the female wearer finger will touch the surface of facing health of the labial pad that may stain.
Other suitable interlabial device description is the US patent application serial number No.10/038 of " LABIAL PAD HAVING VARIOUS MEANS " at people's such as James J.Hlaban title, in 973, the application (attorney No.17,693) on the 31st of calendar year 2001 December.Whole disclosures of these files are hereby incorporated by reference in the mode that is consistent with this paper.
Compliance assembly 66 and feminine care goods can, for example, comprise the structure of putting improvement in performance, the latter farthest reduces those a part of surface areas that contact with bottom 48 vestibule 42 the feminine care goods when being placed in the vestibule of female wearer through design with convenient feminine care goods.Farthest reducing those a part of surface areas that contact with bottom 48 vestibule 42 the feminine care goods is considered to prevent contact caused stimulation and perhaps painful friction effect with the bottom of vestibule by the feminine care goods.For example, put improved structure and can comprise at least one slit that is on the axle, this axle is in or is parallel to and is adjacent to main longitudinal axis (L).This puts improved structure can comprise single continuous slit or a series of slit, and selected advance can be extended along the length of absorbing material.For example, this advance can have about 80% minimum of the length that is not less than compliance assembly 66 and be not more than about 100% maximum of the length of compliance assembly 66.Additionally, put improved structure and can comprise at least one slit that is on the axle, this axle is in or is parallel to and is adjacent to main transverse axis (T).Therefore, this type of configuration can also comprise single slit or a plurality of slit.When the selected configuration of putting improved structure was introduced a series of slit, each slit can be to separate with selected spacing distance and adjacent slit.For example, this spacing distance can have the minima of about 2mm and the maximum of about 15mm.
This puts improved structure can also have the degree of depth that runs through compliance assembly 66 thickness.Substantial distance, width and/or the degree of depth of putting improved structure can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.
In another configuration, compliance assembly 66 and feminine care goods can comprise deformation structure, and when the feminine care goods bent and are placed in the vestibule, this structure allowed the feminine care goods follow the effective surface area of vestibule 42 basically." effective surface area " of this phrase vestibule 42 is meant that part of the contact feminine care goods of vestibule.By following the effective surface area of vestibule 42 basically, in use the feminine care goods seldom are ejected and are left vestibule when bending and being placed in the vestibule 42.In addition, by following the effective surface area of vestibule 42 basically, the feminine care goods can help farthest to reduce the probability of seepage.In special arrangement, deformation structure can comprise that at least one slit of being on the axle and randomly, selected a plurality of slits, this axle are in or are parallel to and are adjacent to main longitudinal axis (L).No matter single continuous slit or a series of slit, the substantial distance of deformation structure and/or the degree of depth can be according to especially the general design and the predetermined arrangement of this feminine care goods in the vestibule 42 of female wearer of feminine care goods change.When introducing a series of slit, each slit of deformation structure can separate to the distance of about 15mm and adjacent slit with about 2mm.
If the feminine care goods are bent, then female wearer randomly bent this goods along an axle that is in or be parallel to main transverse axis (T) before being placed on the feminine care goods in the vestibule 42.In this type of situation, therefore the wearer remained on the transverse end zone with the feminine care goods of bending before being placed on the feminine care goods in the vestibule 42.Consider this type of situation, therefore the position of deformation structure can change.
In other arrangement, compliance assembly 66 and feminine care goods can comprise that liquid sucks the improvement structure.This liquid sucks the improvement structure and can help to increase the surface area of compliance assembly 66 and can allow body fluid absorb more quickly in the compliance assembly 66, compares with the identical feminine care goods that do not contain this class I liquid I suction improvement structure.This liquid sucks and improves that structure can allow the fast Absorption of the health transudate be scheduled to but not had upper surface when compliance assembly 66 be smooth or spill basically and be close to vagina 56 or the typical liquid that run into during 58 mouthfuls in urethra sucks and limits.In special arrangement, liquid suck to improve structure can comprise that at least one slit of being on the axle and randomly, a plurality of slits, this axle are in or are parallel to and are adjacent to main longitudinal axis (L).
The title that the additional examples of interlabial equipment has been disclosed in people's such as Ronald L.Edens calendar year 2001 December 31 days application (application attorney docket No.17,696) is the US patent application serial number No.10/037 of " LABIAL PAD ", in 276; With the title in people's such as Deanna R.Kathumbi-Jackson calendar year 2001 December 31 days application (application attorney docket No.17,697) be the U.S. Patent Application Serial Number No.10/038 of " LABIAL PAD ", in 971.Whole disclosures of these files are hereby incorporated by reference in the mode that is consistent with this paper.
Except the length and width of considering labial pad or other interlabial equipment, the labial pad of surface area in improvement is placed on the female wearer vestibule of labial pad or other interlabial equipment comfortable and adaptive on also play an important role.The effective surface area of female vestibule can be little to about 275 square millimeters, or even littler, this depends on the women.In addition, the effective surface area of female vestibule can arrive about 3,800 square millimeters greatly, or even bigger, this depends on the women.Be meant that part that is used for the vestibule surface that contacts with feminine care goods (be similar to those feminine care goods described here or comprise this feminine care goods) for the use of the phrase " effective surface area " of vestibule.Though relatively large variation is arranged on the effective surface area of female vestibule, a lot of female vestibule can have at about 700mm 2To about 3,100mm 2Effective surface area in the scope.By the surface area of the upper surface of compliance assembly 66 and the effective surface area of female wearer vestibule are mated basically, the feminine care goods can be made configured so that demonstrate improved effect when maintaining desired location in vestibule 42.As a result, these feminine care goods can provide the better coverage rate of vestibule, can at utmost reduce the potentiality of seepage better, and can provide improved comfort level for this wearer.When wishing to keep the desired location of feminine care goods in the vestibule of female wearer under the situation that is not having additional detent mechanism (cord for example, body adhesives, garment-adhesive, band, sanitary towel, tampon, underwear etc.), this is a particular importance.
The following example is used to provide more understood in detail of the present invention, and does not wish to limit the scope of the invention particularly.
Embodiment 1
The absorbent feminine care goods of present embodiment comprise the retaining pulls, cladding material, and be clipped in the retaining pull and cladding material between compliance absorbent core element.
The cladding material that comprises twin-layered laminate has top or bodyside in the face of layer and bottom or absorbing material side layer after making.This bodyside first nonwoven fabric layer is 0.47osy (16.5g/m 2) carding fiber net, have 73wt%PET and 27wt% polypropylene (PP) fiber.This absorption material side second nonwoven fabric layer is 0.40osy (13.5g/m 2) carding fiber net and have 90wt% artificial silk, natural hydrophilic fiber and 10wt% polyethylene terephthalate (PET) fiber.These layers are at 435-725psi (30-51kgf/cm 2) water pressure under carry out that liquid tangles and utilize (the 41kgf/cm at 580psi then 2) under operability processing bore a hole about 50 holes/every cm be provided 2Hole concentration.These have about 0.06mm diameter or about 0.3mm 2Area.This hole is rhombohedral roughly, because grid (the laminated material support thereon) is rhombohedral.Supporting dielectric with other shape will cause other shape and size in hole.In the present invention, the cladding material material is arranged discriminatively and makes that relatively more hydrophilic artificial silk leafing is opened wearer's health and the close health of low hydrophilic PET/PP layer.
Embodiment 2
The absorbent feminine care goods of present embodiment comprise the retaining pulls, cladding material, and be clipped in the retaining pull and cladding material between compliance absorbent core element.These goods comprise following:
Vendor name and address
Cladding material 30-g/m 2BAIKSAN Spunlace YK30H5 Baiksan Co., Ltd. 1234, Jeongwang-dong, Siheong-si, Kyunggi-do, Korea
Absorbing material The 60%BBA-14 cotton; With 40% LENZING Code, 8257 staple fibres.Middle-sized microstructure system product contain the absorbing material of 0.75-1.0 gram.The microstructure system product of long size contain the absorbing material of 0.9-1.3 gram. BBA Nonwovens 100 Elm Street Walpole；Massachusetts, U.S.A. Acordis Kelheim GmbH Regensberger Strasse 109 93309 Kelheim Germany.
Baffle plate PLIANT, XC3-999-1521.0. white, polyethylene film Pliant Corporation 1701 1st Avenue Chippewa Falls, Wisconsin, U.S.A.
Binding agent NATIONAL STARCH, 34-5610. is with 5-9g/m 2The binding agent that additional amount applies. ??National?Starch?and ??Chemical?Co. ??10?Finderne?Avenue ??Bridgewater，New?Jersey， ??U.S.A. ??14351?Hwy21 ??Enoree，South?Carolina， ??U.S.A.
In embodiment 2, the spun laced process mulch carries out liquid and tangles and bore a hole, and comprises artificial silk, polypropylene (PP) and poly-(ethylene glycol terephthalate) or PET.Two kinds of original fibers net width of cloth are used for being manufactured on the fibrous layer of cladding material.It is 100% staple fibre that the first cellulosic net sheet of first nonwoven fabric layer is provided.Provide the second cellulosic net sheet of second nonwoven fabric layer to comprise 72.7%PET and 27.3%PP.In the present invention, the cladding material material is arranged discriminatively and makes that relatively more hydrophilic artificial silk leafing is opened wearer's health and the close health of low hydrophilic PET/PP layer.Total basic weight of final cladding material is 30g/m 2Cladding material has 13.5g/m 2Staple fibre (total cladding material 45%), 12g/m 2PET (total cladding material 40%), and 4.5g/m 2PP (total cladding material 15%).
Tangle and after the liquid perforation procedure finishes at liquid, component layers becomes the mixing that partly interweaves, but the rayon fiber of first nonwoven fabric layer is mainly on the side of cladding material and the PET/PP fiber of second nonwoven fabric layer mainly on another opposite side at cladding material.Have the ground floor side (below be called " staple fibre side ") of the rayon fiber of the content of preponderating and have more hydrophilic relatively than the second layer side of the low hydrophilic PP/PET fiber that contains the content of preponderating (below be called " PET/PP side ").The first relative more hydrophilic layer of the double-deck semi-hydrophobic spun laced process of present embodiment is made up of 100% rayon fiber.The second low hydrophilic layer is fibrous by 72.7%PET fiber and 27.3%PP.
For having the cladding material of the staple fibre layer (more hydrophilic layer) towards absorbing material through configured, the liquid respiratory time reduces unexpectedly, as shown in the table 1.
Table 1: use the Double Gush test of the 2-ml dunghill of menses analogies
Average respiratory time (second) 1 stDunghill ??STD Average respiratory time (second) 2 ndDunghill ??STD
??22gsm?Sandler ??BCW ??5.06 ??.84 ??19.18 ??1.08
Untreated spun laced process fabric (staple fibre is to absorbing material) ??2.99 ??.03 ??16.56 ??1.10
Spun laced process fabric (staple fibre is to health) ??2.67 ??.06 ??16.31 ??1.70
The STD=standard deviation.
Time between first and second dunghills is 9 seconds.
Although do not wish to be subjected to the constraint of any special theory, can believe, because staple fibre is natural wick material, allow this hydrophilic (staple fibre) layer avoid health and can help to guide fluid to enter in the absorbent core near absorbent core element 66.This absorbent core element 66 was by 60: 40 (cottons: staple fibre) form, and can be based upon the transmission of continuous liquid basically between cladding material and the absorbency fiber in absorbent core and other absorbent material, therefore improve the capillarity between cladding material 62 and absorption component 66.Allow hydrophilic layer away from health with near absorption component 66, cladding material 62 can help to increase the voidage that can use for liquid, because rayon fiber can provide vacation-pulse or provisional-storage areas, penetrate in the absorbent core element 66 until liquid.
Bench run with the menses analogies shows, allows the staple fibre aspect cause more effective utilization of absorbing material to the particular orientation of the spun laced process cladding material of absorbent core.The speed that liquid sucks is improved.In addition, more substantial liquid can be absorbed before the seepage and staining size and can reduce on cladding material.Figure 17 provides when with the test of menses analogies, and the correlated diagram summary of liquid capacity of the interlabial equipment of various cladding materials/orientation is arranged.Product size, absorbability mixture (cotton: staple fibre), identical with whole microstructure system product of being tested with the basic weight of absorbing material.Liquid flow rate is 0.75mL/ minute, discharges from the pipe than the high 0.5cm of microstructure system product.Stop liquid flows and is recorded in the cumulative volume of the liquid that breakthrough exports when microstructure system product beginnings seepage.
From the diagram of Figure 17, can find out to have and allow the microstructure system product of the spun laced process cladding material that the staple fibre aspect is orientated health before seepage, can not absorb the liquid of as much.Since the PET/PP layer has lower hydrophilic than staple fibre layer, some liquid pass the PET/PP layer and enter into absorbent core before along staple fibre layer generation wicking.At last, this staple fibre layer will become saturated before absorbent core and liquid can pour off from the surface of microstructure system product, cause too early seepage.
On the contrary, make spun laced process cladding material orientation will cause initially sucking fast and less seepage by allowing the staple fibre layer avoid health.With reference to Figure 17, have and the microstructure system product of the cladding material that the staple fibre aspect is orientated absorbent core can be absorbed those goods of health than the staple fibre aspect more many liquid.
Also write down the specification that stains size for the code name of being tested with Folded Miniform Intake and Distribution Test (codes).Product is stained with 3mL menses analogies with the flow velocity of 0.75ml/min.Measurement products stains size then.The result provides in table 2.
Table 2: the pollution dimensional measurement after the total dunghill of 3-mL
Employed cladding material MD pollutes length CD pollutes length
??Sandler?BCW?22gsm ??1.3cm ??3.4cm
Spun laced process fabric (in the face of the staple fibre of absorbing material) ??1.3cm ??1.6cm
Spun laced process fabric (in the face of the staple fibre of health) ??2.1cm ??2.1cm
MD=is along main longitudinal axis L
CD=is along main transverse axis T
Microstructure system product with big ratio that CD-pollutes and MD-pollutes tend to keep less fluid before seepage.This CD-pollution/MD-pollute ratio dry straightly corresponding to the result who in Figure 17, sees.
Though the present invention very at length is illustrated and describes with reference to its some embodiment, other is arranged and configuration also is possible and is considered within the scope of the invention.Therefore, the spirit and scope of claims should not be limited to specifying and narrating of wherein contained embodiment.

Claims (12)

1. the absorbent feminine care goods comprise
The cladding material of permeability for liquids; With realize effective bonded absorption component with described cladding material;
Wherein
This cladding material comprises with the low hydrophilic second layer partly realizes effective bonded hydrophilic ground floor part;
The second layer partly is positioned on the bodyside of described goods; With
Ground floor partly is between described second layer part and the described absorption component.
2. the goods of claim 1, wherein
The described hydrophilic ground floor of cladding material partly comprises first nonwoven fabric layer;
The described low hydrophilic second layer of cladding material partly comprises second nonwoven fabric layer;
Described second nonwoven fabric layer is positioned on the bodyside of described goods; With
Described first nonwoven fabric layer is between second nonwoven fabric layer and the described absorption component.
3. the goods of claim 1, wherein
The described hydrophilic ground floor of cladding material partly comprises the first perforated nonwoven tissue layer;
The described low hydrophilic second layer of cladding material partly comprises the second perforated nonwoven tissue layer;
The described second perforated nonwoven tissue layer is positioned on the bodyside of described goods; With
The described first perforated nonwoven tissue layer is between described second nonwoven fabric layer and the described absorption component.
4. the goods of claim 1, wherein
This cladding material comprises having first opposed face part and relative second opposed face adhesive-bonded fabric partly;
This hydrophilic ground floor partly is partly to be provided by described first opposed face; With
The described low hydrophilic second layer partly is partly to be provided by described second opposed face.
5. the goods of claim 4, wherein said hydrophilic ground floor partly comprises surfactant.
6. the goods of claim 1 further comprise keeping off and pull; And wherein said absorption component is clipped between cladding material and retaining pull.
7. the goods of claim 1, wherein said ground floor partly comprises the hole, the described second layer comprises the arrangement of aliging with the hole of described second layer part basically of the hole of hole and described ground floor part.
8. the goods of claim 1, wherein said first and second layer segments come lamination according to spunlaced one-tenth cloth method.
9. the goods of claim 2, wherein cladding material comprises first nonwoven fabric layer that contains cut staple, natural hydrophilic fiber, this hydrophilic fibre has carried out the liquid entanglement and has formed laminated material with second nonwoven fabric layer that comprises low hydrophilic fibre, and wherein said laminated material is to bore a hole with the hole area of 10-50%.
10. the goods of claim 9, wherein said ground floor comprises hydrophilic fibre, this fiber is selected from staple fibre, paper pulp, cotton, natural hydrophilic fiber and their mixture.
11. the goods of claim 9, the wherein said second layer comprise the fiber that the polymer from be selected from polyolefin, polyester, acrylic resin and their mixture is made.
12. the goods of claim 1, wherein
These goods provide labial pad through configured; With
The described hydrophilic ground floor of cladding material partly comprises the first hydrophilic perforated nonwoven tissue layer;
The described low hydrophilic second layer of cladding material partly comprises the low hydrophilic second perforated nonwoven tissue layer; With
This first and second nonwoven fabric layer carries out lamination according to spunlaced one-tenth cloth method.
CNB2003801018638A 2002-11-06 2003-10-22 Semi-hydrophobic cover for an absorbent product Expired - Fee Related CN100379398C (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN105919730A (en) * 2008-02-15 2016-09-07 宝洁公司 Absorbent article
CN109394428A (en) * 2018-12-21 2019-03-01 浙江珍琦护理用品有限公司 A kind of paper diaper and its manufacturing method with super large punching cotton surface layer

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JP3058533B2 (en) * 1993-04-27 2000-07-04 ユニ・チャーム株式会社 Surface sheet for body fluid absorbent article and method for producing the same
CA2203795C (en) * 1994-11-02 2001-12-11 Paul Dennis Trokhan Method of producing nonwoven fabrics
US5693037A (en) * 1995-04-21 1997-12-02 The Procter & Gamble Company Absorbent articles having improved surfactant-treated hydrophilic topsheets
EP0749738B1 (en) * 1995-06-19 1999-11-17 The Procter & Gamble Company Sanitary articles with dual layer film topsheet having a selected distribution of large apertures
US5885265A (en) * 1995-11-22 1999-03-23 The Procter & Gamble Company Water dispersible and flushable interlabial absorbent structure
JP3587677B2 (en) * 1998-03-26 2004-11-10 ユニ・チャーム株式会社 Liquid permeable surface sheet for body fluid absorbing articles
EP0953324A1 (en) * 1998-04-28 1999-11-03 The Procter & Gamble Company Apertured laminate web

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105919730A (en) * 2008-02-15 2016-09-07 宝洁公司 Absorbent article
CN109394428A (en) * 2018-12-21 2019-03-01 浙江珍琦护理用品有限公司 A kind of paper diaper and its manufacturing method with super large punching cotton surface layer

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