CN1241922A - Disposable absorbent article capable of self shaping in use and applied with a topical adhesive to the skin of a wearer - Google Patents
Disposable absorbent article capable of self shaping in use and applied with a topical adhesive to the skin of a wearer Download PDFInfo
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- CN1241922A CN1241922A CN 97180972 CN97180972A CN1241922A CN 1241922 A CN1241922 A CN 1241922A CN 97180972 CN97180972 CN 97180972 CN 97180972 A CN97180972 A CN 97180972A CN 1241922 A CN1241922 A CN 1241922A
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Abstract
The present invention relates to disposable absorbent articles capable of self-shaping in use, particularly sanitary napkins or pantiliners. In particular, the present invention relates to such disposable absorbent articles which are worn by direct attachment to the skin of the wearer in the area where absorption of bodily liquids is desired and which are activated during use to adapt their shape to the negative three-dimensional image of a wearer. The topical adhesive attachment of such articles needs to be secure and pleasing upon application and during use of such articles, yet cause no discomfort upon removal of the article. This is achieved by the present invention selecting the rheological characteristics of adhesives for such articles.
Description
Invention field
Can be when the present invention relates to use from disposable absorbent article, especially sanitary towel, scanties lining or the adult-incontinence articles of be shaped (self shaping).The present invention be more particularly directed to this kind disposable absorbent device, they directly are fixed on the wearer's skin and are worn on the skin part that needs absorb body fluids, and these articles for use are movable so that its shape adapts to the shadow part (negative) of wearer's 3-dimensional image between the operating period.When using and between the operating period, it should be safety and comfortable that the part of these class articles for use sticks with glue agent fixing, thereby can not cause uncomfortable when removing articles for use.The present invention realizes these benefits by the rheological properties of the adhesive selecting these class articles for use and use.
Background technology
The general prior art that locally applies to the disposable absorbent article field on the wearer's skin is especially developed in Band-aid, Gypsum Fibrosum preparata (plaster) and binder field.But these absorbent devices with in case of emergency, for example wound occurred in the wearer's skin usually in this case, need to absorb the body fluid that wound is discharged.In this sense, the performance parameter of absorbent device, as comfortable and use easily and use, painless removal, discreteness are subordinated to aseptic as wound, the standard of treatment support, mechanical protection.And these class wound covering absorbent device great majority are used for this class skin part, before using absorbent device, can remove the chaeta at these positions or not long chaeta or chaeta herein seldom.
The present invention does not relate to the wound covering absorbent device, and relates to absorb the absorbent device of nature from health rather than the effusive body fluid of wound.For example, sanitary towel or the scanties lining that is used for genital area is exactly these class articles for use.Being worn on as the incontinence article of people's genital area or the sweat-blocking pad that is worn on axillary fossa also is theme of the present invention.
These class articles for use are used for wearer's skin part, thus this class position usually growth to have the hair of quite big quantity to remove the requirement of articles for use particularly important easy and painlessly.The articles for use of directly using have been done general disclosure in United States statutory invention registration H 1602 or WO 96/33683.The more details of these class articles for use has been done research in as PCT application WO 95/16424.Disclosed in this document and had the hygienic article that is administered to the body and function adhesive (bodyadhesive) on wearer's side of sanitary towel along whole periphery.The root problem that this document exists mainly is that safety is fixed on the skin, mentions simultaneously and uses the back at the separation problem that wearer is not caused these class articles for use under the undue pain.
The open part of WO 95/16424 comprises the rheology standard of labor body and function adhesive.But this document does not almost relate to the painless removal problem of these class articles for use, because the rheology standard of describing comprises depilation, promptly removes hair (compositions), its by as the STREP MIELE (TM) of Italian Laboratori VajS.p.A sell.The adhesive of the localized immobilization of mentioning in WO 95/16424 comprises that also of today being used for is fixed to pressure-sensitive adhesive on the underwear with sanitary towel.And this document has only been discerned static rheological charactristics, does not promptly describe the dynamic rheology feature of body and function adhesive.
WO 96/13238 discloses the body and function adhesive model that depends on frequency.But disclosed all measured values as on the 9th page, all are to carry out under-60 ℃～+ 120 ℃ temperature and under the actual frequency of 0.1～100 radian per second (rad/s).For the necessary data under the temperature that is applied (about 20 ℃, general bathroom, i.e. storage temperature), used Williams-Landel-Ferry (hereinafter claiming WLF) formula.
This WLF equation is an empirical formula, and only in specific scope effectively, can not be used to be extrapolated to temperature below the glass transition temperature that is lower than polymer adhesive as it, same WLF equation can not be used for based on the numerical value that obtains below the glass transition temperature.About the details of WLF equation and application thereof can find in following document: " Principles ofPolymer processing " (the Polymer Processing principle) of Z.Tadmor and C.G.Gogos, by John Wiley; " Viscoelastic Properties of Polymers " (viscoelastic properties of polymer) of Sons publication or J.D.Ferry is also by John Wiley ﹠amp; Son publishes.Because this disappears from WO 96/13238 already, so can not assess the suitability of disclosed data.
And this document and WO 95/16424 do not disclose the absorbent device that can be shaped when using.
European patent application EP-638 303 has disclosed uses the body and function adhesive so that make the side hoop remain on stand up position on the side hoop of sanitary towel.Switzerland publication number CH-643730 has disclosed the purposes of the sanitary towel with outer chamfered edge, in four bights of outside the body and function adhesive is arranged so that just in time provide the body and function adhesive areas in the outside in the hair growth district of pubis.
Have now found that it is favourable using expanding material (expanding material) in the absorbent article core of absorbent device, because can provide articles for use with the form of thin (plane usually), articles for use expand in use so that present more approaching shape simultaneously, and produce the volume that can store the liquid that will absorb.The representative instance of this class expanding material is so-called sucting wet gel material, is also referred to as superabsorbent material or compression material, and this material loosens from its compressive state during use.The cellulosic structure or the sponge structure of compression, particularly regenerated cellulose sponge material be as US3, and 736,931, US3,512,530, disclose among EP-293208, European application EP-96106724.6 and the EP-96106723.8.
Based on above-mentioned prior art, an object of the present invention is to provide thin, basically put down or plane disposable absorbent article, this articles for use safety is fixed to and is used on the wearer's skin absorbing from the effusive naturally liquid of wearer's body, the disposable absorbent article that articles for use can be shaped during use certainly.But the articles for use that this class is bonded on the health also need painless removal.A further object of the present invention is to guarantee when removing absorbent device, does not have remaining adhesive to stay on wearer's the skin or hair.To be the adhesive used of localized immobilization cause cold or other unacceptable temperature sense using Shi Buhui further object of the present invention, although the temperature difference of adhesive and skin temperature.A further object of the invention provides disposable absorbent article, wears the liquid that will flow to the absorbent device outside and minimizes or eliminate thereby these articles for use discharge the position near wearer's liquid.For the disposable absorbent article that is worn on wearer's crotch portion, this shows as the improved safety that prevents the pollution of surrounding skin tissue and medicated clothing.
Except above-mentioned purpose, reduce or even sanitary towel, scanties lining and the sanpro of eliminating the abnormal smells from the patient that discharges from product also be desirable, because it is applied to a kind of odor seal is provided on the wearer's skin, sealing has prevented the abnormal smells from the patient of the liquid that absorbs or has arrived the outer and abnormal smells from the patient that forms of absorbent device by the liquid that absorbs.
Summary of the invention
The present invention relates to the part sticks with glue agent and is fixed to disposable absorbent article on the wearer of these class articles for use, these articles for use have a surface and the outer surface towards the wearer usually, the articles for use below being worn on medicated clothing, this outer surface is also referred to as the surface towards medicated clothing.These articles for use comprise an absorbent article core structure, this absorbent article core towards the wearer the surface and between the medicated clothing face, be used to absorb nature from the effusive liquid of wearer.Disposable absorbent article of the present invention is included in its adhesive at least a portion on wearer's surface and is used for the part and sticks with glue the skin that agent is fixed to articles for use the wearer.
Absorbent article core of the present invention comprises that articles for use that are used for wearing expand into the parts of three dimensional structure.When liquid was absorbed by absorbent article core, the parts of the articles for use that are used to expand were movable.In particularly preferred embodiment of the present invention, the parts of the articles for use that are used to expand comprise the Boping sheet of the regenerated cellulose sponge of compression.The thickness range of articles for use is the 1-5 millimeter preferably, be more preferably the 1-3 millimeter, it mainly increases thickness rather than other sizes of articles for use thereby the regenerated cellulose sponge sheet of preferred compression expands, and the surface towards the wearer of articles for use is moved to more close wearer, and make its profile adapt to the shadow part (negative) of wearer's 3D shape.In order to adapt to these improved articles for use and wearer's propinquity, preferably the surface towards the wearer of articles for use is provided by top flat, and top flat can expand with the expansion of the parts that adapt to these articles for use that are used to expand.
The labor of the precedence of the normal conditions that occur when being applied to of disposable absorbent article removed these class articles for use has shown the characteristic that must satisfy very special adhesive to realize required performance purpose, and the safety when particularly using is fixed, the safety between the operating period is fixed and last painless removal.The characteristic of having considered in this case be describe material elastic performance elastic modelling quantity and the viscous modulus of the adhering performance of adhesive material is described.
The adhering performance of adhesive can be interpreted as representing the index of the agglutinating ability of the fixing rapidly also safety of adhesive.Elastic performance may be interpreted as the index of " hardness " performance of expression adhesive.Its value also is important to good initial fixation.The combination that it is believed that them is the indication of required power when removing.The relation of elastic modelling quantity and viscous modulus is considered to represent that where partly removing energy will be dissipated in the adhesive, and which part can be used for causing removing of reality.
To satisfy initial safety fixing in order to provide, and the safety between the operating period is fixing and easily/the painless disposable absorbent article that needs of removing, the relation of elastic modelling quantity and viscous modulus with and kinetic property be particular importance.
Adhesive has elastic modelling quantity under the temperature of 37 ℃ (100), be abbreviated as G ' 37, has viscous modulus under the temperature of 37 ℃ (100), is abbreviated as G " 37.Adhesive also has dynamic elasticity character, " 37; it is the difference of the G ' 37 under the frequency of G ' 37 under the frequency of 100 radian per seconds and 1 radian per second; adhesive also has dynamic adhering performance; be defined as Δ G " 37 that are defined as Δ G, it is the difference of G " G under the frequency of 37 and 1 radian per second " 37 under the frequency of 100 radian per seconds.
Articles for use of the present invention comprise the topical adhesive that satisfies following condition.
O G ' 37 (1 radian per second) in the scope of 1500-20000Pa, preferred 1500-15000Pa, most preferably 3000-10000Pa;
O G " 37 (1 radian per seconds) in the scope of 100-15000Pa, preferred 100-10000Pa, most preferably 300-5000Pa;
O G ' 37 (1 radian per second)/G " ratio of 37 (1 radian per seconds) in the scope of 2-50,3-30 preferably;
O ratio
Be not less than 0.5, preferably in the scope of 0.7-3, more preferably in the scope of 1-1.8;
O or ratios delta G ' 37/G ' 37 (1 radian per second) are not more than 1.5, preferably are not more than 1, most preferably are not more than 0.8; Perhaps
Δ G ' 37 is not more than 10000Pa, preferably less than 5000Pa, most preferably less than 2000Pa; Perhaps both;
O is the G ' 37/G in the frequency range of 1～100 radian per second at least " 37 ratio should be preferably 2 or bigger, and more preferably 3.3 or bigger, simultaneously at arbitrary place of frequency interval, be no more than about 50, preferred 30;
The o rheological property also can be relevant with the value of glass transition temperature Tg.For body and function adhesive of the present invention (body adhesive), Tg should be more preferably less than-20 ℃, most preferably less than-25 ℃ preferably less than-15 ℃;
The acceptance of o rheological property and the disposable product that contains topical adhesive is also relevant with specific heat capacity.The preferably local specific heat capacity that sticks with glue agent is more preferably less than 3J/g/K, most preferably less than 2J/g/K less than 4J/g/K;
The acceptance of o rheological property and the disposable absorbent article that contains topical adhesive is also relevant with the specific heat conductance of adhesive.Preferably the specific heat conductance is preferably greater than 0.6W/m/K greater than 0.1W/m/K, most preferably greater than 1W/m/K.
If satisfy above-mentioned rheology condition, adhesive also satisfies as competent caking property conditions such as (remaining on the skin to prevent adhesive), and these conditions are important and are conspicuous for those of ordinary skills the commerce application of this class adhesive.The adhesive compound that satisfies above-mentioned standard can be used as the topical adhesive that disposable absorbent article is used, and condition is that they also satisfy between the operating period and generally be used safely in common requirement on people's the skin after removing articles for use.
The comfort of sanitary appearance when contacting also is important, thus adhesive compound preferably clear or white and ice-cold, discomfort when preventing to use.
Above-mentioned rheology standard and other consider that item can satisfy by adhesive compound, this moment compositions comprise 51%～99.5% be the plasticized compound or the component of liquid in the time of 20 ℃, 0.5～20%, preferred 5～15% polymerizable compound or component and a kind of tackifying resin of solvable or swellable in plasticized compound, the amount ranges of this resin is 0～600% of a polymerizable compound weight.Plasticized compound or component are preferably selected from water, alcohol (preferably glycerine), glycol, Polyethylene Glycol, liquid polybutadiene, oil or its combination, and polymerizable compound or component are preferably selected from block-copolymer-thermoplastic elastomer (TPE), styrene-block-copolymer and hydrogenant styrene-block-copolymer simultaneously.
Be more typically, preferred body and function adhesive is that part is hydrophobic at least, and is preferred 60%, and more preferably the adhesive of 80% weight is made of hydrophobic components, and it is hydrophilic most preferably not having a kind of material in the adhesive, and promptly it is made by hydrophobic components fully.
In particularly preferred embodiment of the present invention, adhesive covers less than 20%, perhaps even be more preferably less than the surface towards the wearer of 10% absorbent device.The present invention is the most favourable to be to be applied to sanitary towel or scanties lining field.
Detailed Description Of The Invention
The present invention relates in use can be from being shaped and can directly applying to disposable absorbent article on the user skin.These articles for use avoid staiing, improving the physiological comfort of user to the medicated clothing that body fluid has absorbability, protection user, and produce easily and pack.Describe disposable absorbent article below with reference to sanitary towel or menopad, but term " disposable absorbent article " comprises medicated underpants lining, adult-incontinence articles or perspiration pad.Term used herein " sanitary towel " refers near be worn on the perineal region and planned to absorb and hold the multiple body fluid (as vagina Excreta, menstruation and/or urine) of discharging from health and once using the back to plan to throw away by the women articles for use.This disposable absorbent article preferably approaches, and more preferably 1～5mm is thick, can be flat basically before use.
Term used herein " being flat basically " refer to one with the opposite plane that is formed in have it mainly to stretch articles for use.In a preferred embodiment, the absorbent article core of flat substantially articles for use has constant thickness, perhaps at least absorbent article core with the vertical direction of absorbent article core itself on shapeless.This does not get rid of the general complications of absorbent article core.According to the present invention, product can depart from the degree of definitely flat shape, and the shaping that product had benefited between the operating period is conspicuous for those of ordinary skills.
Term used in the present invention " use " refers to time period of beginning when contacting with the human body of user when absorbent device is actual.
Term used herein " connection " or " fixing " comprise wherein that first parts are directly connected to the configuration of second parts and wherein by first parts are connected on the intermediate member, thereby intermediate member is connected to the configuration that first parts on second parts are connected to second parts indirectly.
Part is positioned between the outer lip of wearer's vestibule, vestibule that part is positioned at the wearer part also within the scope of the invention, and it is possible needing only localized immobilization.Term used in the present invention " pudendum " refers to outside visible female reproduction district, and is limited to labium majus, nympha, clitoris and vestibule.
An embodiment preferred, sanitary towel of the present invention comprise liquid thoroughly top flat, be connected to liquid-tight egative film and the absorbent article core between top flat and egative film on the top flat.In this embodiment preferred, absorbent article core comprises the regenerated cellulose sponge material of compression.Sanitary towel has two first type surfaces, with Body contact or towards wearer's surface with towards or contact the surface of medicated clothing.Absorbent article core also has accordingly towards wearer's surface with towards the surface of medicated clothing.
There are two centrages in sanitary towel, a longitudinal centre line and with the vertical cross central line of longitudinal centre line.Term used in the present invention " vertically " refers to line, axle or the direction in the sanitary towel plane, and this plane is divided into the vertical plane consistent (or almost parallel) of left and right sides two halves usually with the wearer's who stands that will wear sanitary towel health.Term used herein " laterally " or " side direction " are interchangeable, refer to be positioned at plane and common and vertical vertical line, axle or the direction of sanitary towel.The Z direction is perpendicular to the vertical and horizontal of sanitary towel, and protruding from the plane of sanitary towel, and it is limited by longitudinal centre line and cross central line.
The three dimensional structure of sanitary towel is wherein to make SANITARY NAPKIN CONSTRUCTION expand (at least in part) so that the health of the user of closer fitting in the Z direction.This expansion preferably occur in sanitary towel from towards the surface of medicated clothing on the direction on wearer's surface.Particularly preferably be the three dimensional structure with convex configuration, this configuration includes, but is not limited to type of falling U-or the type of falling V-.The shape of cross section of middle body with sanitary towel of these configurations more matches with general wearer's labia.
Top flat is submissive, soft feel and non-stimulated to wearer's skin.Top flat also can have elastic performance, makes it extensible in one or two direction or its whole extension of some part of top flat.In addition, top flat is a liquid, allows liquid (as menstruation and/or urine) to see through its thickness easily.Suitable top flat can be made by many materials, as weaving or non-woven material; The thermoplastic film of polymeric material such as porous formed thermoplastic film, porous plastic film and hydroforming; And the rare gauze of thermoplasticity.Suitable weaving and non-woven material can by natural fiber (as wood or cotton fiber), synthetic fibers (as polymer fiber such as polyester, polypropylene or polyethylene fibre) or natural and synthetic fibers or two-/combination of many-component fibre makes.
The used preferred top flat of the present invention is selected from the nonwoven top flat and the porous formed film top flat of high loft usually.Porous formed film especially is preferred in the top flat, because they can see through bodily exudate, and does not absorb them, and liquid is returned and the trend of returning wet wearer's skin reduces.Therefore, the surface of the formed film that contacts with the wearer keeps dry, and therefore reduces health and is stain, for the wearer provides a more comfortable sensation.Suitable formed film is at USP 3,929, and 135, be described among USP 4,324,246, USP 4,342,314, USP 4,463,045 and the USP 5,006,394.The porous formed film top flat of particularly preferred microcosmic is at USP 4,609,518 and USP 4,629,643 in done disclosure.The used preferred top flat of the present invention comprises the formed film of describing in above-mentioned one or more patent, and by The Procter ﹠amp; (Cincinnati Ohio) sells with " DRI-WEAVE " in sanitary towel Gamble Company.
The present invention also considers not have the monophasic fluid passage and distributes, and only some top flat contains the top flat of fluid passage.To such an extent as to this class top flat has central authorities' liquid thoroughly of the fluid passage top flat of distribution like this usually, and periphery liquid thoroughly.
The surface towards the wearer of formed film top flat can be thereby that the hydrophilic flowing fluid ratio body surface that helps is not the hydrophilic top flat that sees through quickly.In a preferred embodiment, surfactant is joined in the polymeric material of formed film top flat, described in PCT publication number WO 93/09741.In addition, can handle that it is become is hydrophilic with surfactant to the surface towards the wearer of top flat, as US 4,950,254 is described.
Another kind of alternative plan is so-called hydridization top flat, and this top flat combines fibrous and membrane structure.The useful especially embodiment of this class hydridization top flat has been done disclosure in PCT publication number WO 93/09744, WO 93/11725 or WO 93/11726.
When relating to top flat, consider multiple structure or single layer structure.A kind of multilamellar design that hydridization top flat above-mentioned comes to this, but consider that also other multilamellar top flat is as the secondary top flat design of advocating peace.
Preferably, when sanitary towel expand into three dimensional structure, top flat of the present invention can expand.When tensile material own is made under the expansion piece applied force effect of top flat by the regenerated cellulose sponge that is compressing, can realize this expansion.In a preferred embodiment, pleat or folding with convenient required expansion is set on top flat.In addition, expanding layer can constitute whole absorbent article core.
The wettability power of absorbent article core should be compatible with the body fluid load of the expection of absorbent device, comprises the volume that expansion produced by expanding layer.
Substantially the unexpansive hygroscopic part of absorbent article core (if exist) can be any compressible usually, resilience, non-stimulated and can absorb and retain the hygroscopic part of body fluid to wearer's skin.Hygroscopic part can be made by the multiple imbibition material that is usually used in disposable absorbent article.
In an especially preferred embodiment, the hygroscopic part of absorbent article core contains material by the air lay of heat bonding longitudinal folding twice and the moisture absorption lamination that forms on himself, and contains the particle of sucting wet gel material between lamination.
Absorbent article core contains the expanding layer of the sanitary towel that is used to expand and closely contact and intercept liquid early in case stopping leak leaks and contamination so that flow out the zone with liquid when wearing sanitary towel.In a preferred embodiment, the swelling by expanding layer provides expansion, during wearing by the beginning absorb body fluids activate inflation.Expanding layer can contain anyly can carry out this expansible material, and as fibrous material or foam structure, they have been compressed or have entered the state that volume reduces the volume after it begins to be exposed to liquid.This includes, but is not limited to particularly fibrous substrate, comprises the superabsorbent fiber, is suspended in the fiber that is coated with sucting wet gel material, the compression foam that comes from natural or artificial source or sponge or compression peat bog in the substrate of compression rebound fiber.
Can use (but not too preferred) other moisture absorption swollen material according to the present invention, as granule sucting wet gel material or superabsorbent material, undecomposable but form stable filamentary structure, as adherent polymer network or rare gauze.
When absorb body fluids with subsequently after the swelling, the expanding layer material must keep soft, submissive, comfortable and resilience.The ability of following the body configuration will provide with the tight of outside genital area of women's user and contact.This helps provides better fluid from the conveying of user in expanding layer.
Preferably expanding layer forms that the surperficial at least a portion towards the absorbent article core of top flat.Preferably, expanding layer contains otch towards wearer's surface or its at it at least one of the surface of medicated clothing, and it can be arranged with the intersecting lens of a series of closures or disconnection.
Term used herein " otch " refers to the opening in the layer of surface; Otch can run through the whole thickness of this layer, can not be divided into two or more separated portions to this layer but be intended to them.
Thereby the intersecting lens of a series of closures is wherein to arrange their the continuous fully each other arrangements of these lines with the form of network.In the intersecting lens of a series of disconnections, line can intersect forming closed profile such as square, circular, hexagon, but does not form interconnective network.
The expanding layer of absorbent article core preferably also comprises its body-facing surface or the hole at least one of the surface of medicated clothing.The hole is elongated to more than 30% of thickness, preferred more than 50%, more preferably more than 80% of expanding layer.It also is possible having the hole of different thickness distribution in the not same district of expanding layer.The whole thickness of expanding layer also can be run through in the hole.
Be arranged on expanding layer towards wearer's lip-deep otch and hole be that the initial fluid that discharges is collected in rapidly in the hole in conjunction with effect, the hole is used for the initial bigger surface area of collecting fluidic bigger space and being used for absorption fluids for expanding layer provides.Begin to accept fluidic expanding layer zone than other regional swelling of expanding layer many, thereby be adapted to wearer's 3D shape on the profile.
In a preferred embodiment of the present invention, expanding layer contains the regenerated cellulosic sponge sheet of compression.Regenerated cellulosic sponge is a material known in the art; The case description of suitable material is in USP3,954,493, french patent application FR-A-2,203,827 and European patent EP-B-0293208 in.Regenerated cellulosic sponge is the sponge that contains the material of cellulose skeleton.The example of this class sponge also contains sponge that is made of cellulose derivative (as viscose glue, cellulose ether and cellulose esters) and the sponge that is made of those mixtures of material except that the sponge that is made of cellulose itself.
Only as giving an example, regenerated cellulosic sponge can be by the mixture preparation of viscose solution that reinforcing fibre is arranged and pore (porogenic) chemical compound, as Na
2SO
410H
2The crystal of O or another kind of crystal with alkali metal salt of the high water of crystallization of content, the size in final hole is relevant with the crystalline size of salt.Viscose solution can be by the extruding mould extruding in required cross section, cohesion then.Wash material with water after the regeneration so that eliminate salt and other possible soluble compounds, dry then and (if desired) is compressed into required density.
The regenerated cellulosic sponge of compression has network structure, and this network structure contains by eliminating the bubble that sodium sulfate crystal produces.The regenerated cellulosic sponge material of compression can be buied in a variety of forms, as with different densities, thickness and quantitative layer or sheet; The dry density value that is used for compression material of the present invention is 0.1～1 gram per centimeter
3, and thickness range is 0.2～5 millimeter.
The swelling of the regenerated cellulosic sponge material of compressing when absorbing liquid occurs in compression direction substantially, and recovers the aperture of raw foam before compression again; It has produced under wet condition not can disruptive void volume, therefore makes material can collect the fluid of further release rapidly.
The regenerated cellulosic sponge sheet absorption fluids rapidly of compression, its volume increase to its 2～20 times of volume when compressing, normally 5～15 times.The volume increase is basically corresponding to the swelling of compression direction.
Absorbent structure of the present invention can comprise other optional feature that exists usually in the moisture absorption net.Rare gauze (scrim) of reinforcement for example, can be set in each layer of absorbent structure or between each layer.To such an extent as to rare gauze that this class is strengthened should have the interface barrier that such configuration can not form FLUID TRANSPORTATION.If when having the structural integrity that occurs usually as the heat bonding result, concerning the absorbent structure of heat bonding, it is normally unwanted that this strengthens rare gauze.
Be included in the absorbent structure core of the present invention and preferred are odor control agents near main or secondary liquid distribution layer or as another parts of its part.Optional active carbon or active carbon and other odor control agent that is coated with odor control agent, zeolite that described odor control agent is particularly suitable or the clay material of adding in the absorbent structure.These parts can any suitable form add, but add with discrete particulate forms usually.
The used preferred abnormal smells from the patient control system of the present invention comprises following combination: i) silicon dioxide, AGM and zeolite, and preferred ratio is 5: 1: 1～1: 1: 5, most preferably is 3: 1: 1～1: 1: 3, ii) zeolite, active carbon and AGM; Iii) silicon dioxide and AGM, preferred ratio is 5: 1～1: 5, is more preferably 3: 1～1: 3, iv) zeolite and AGM; V) silicon dioxide and zeolite, preferred ratio is 1: 5～5: 1, is more preferably 1: 3～3: 1; Vi) chelating agen, particularly edetate; And vii) chelating agen and abnormal smells from the patient control system i)～v) in any combination, preferred ratio is 1: 10～10: 1, is more preferably 1: 5～5: 1, most preferably is 1: 3～3: 1.
According to the present invention, the consumption that joins the abnormal smells from the patient control system of absorbent device can be definite by those of ordinary skills easily, and depend on the desired use of absorbent device, and consider the size of absorbent device.Absorbent device contains 5～400gm usually
-2, more preferably 100～300gm
-2, 150～250gm most preferably
-2The described abnormal smells from the patient control system of weight.For example, sanitary towel or scanties lining can contain 0.25～5g, preferred 0.4～3g, the described abnormal smells from the patient control system of 0.5～2.5g most preferably.
Egative film prevents mainly that moisture absorption is got wet with the transudate that retains in the absorbent structure and contacts the article of absorbent product, as short underpants, medicated underpants, nightwear and underwear.Egative film is impenetrable liquid (as menstruation and/or urine) preferably, and is preferably made by thin plastic, although also can use the liquid-tight material of other flexibility.Term used herein " flexibility " refers to submissive, and the material of the general shape of easy and human body and profile phase applying.Egative film also can have elastic performance, makes it extensible in one or two direction.
Egative film extends through whole absorbent structure usually, can be by fold a part that extends on the top flat and form top flat along absorbent structure.Therefore, US4, the disclosed top flat configuration in 342,314 (the 16th hurdles, 47-62 is capable) can be issued to the situation that top flat carries out perforate need not selectivity.
Egative film can close the non-woven material of weaving or non-woven material, thin polymer film such as polyethylene or polyacrylic thermoplastic film, composite such as plated film.Egative film is the polyethylene film of the about 0.012mm of thickness (0.5 mil)～0.051mm (2.0 mil) preferably.
Exemplary polyethylene film by Clopay Corporation (Cincinnati, Ohio) trade mark of Sheng Chaning is P18-1401 and Ethyl Corporation, (Terre Haute, Indiana) trade mark of Sheng Chaning is XP-39385 to Visqueen Division.Egative film preferably carries out embossing and/or delustring to be handled so that the outward appearance that more resembles fabric to be provided.
Preferably, egative film is by being porous steam at least, but preferably air permeable provide breathability to absorbent device, but under the situation of the major function of not sacrificing egative film.Egative film can be a laminated material, as the combination of microporous membrane, non-woven material and/or porous formed film.Breathability (if desired) can be limited to the peripheral of egative film or it can be along whole egative film.
The used suitable breathable backsheet of the present invention can be selected from all breathable backsheets as known in the art.In principle, two types breathable backsheet is arranged, promptly gas-pervious and liquid-tight monolayer breathable backsheet and have two-layer at least egative film, this two-layer combining provides gas-pervious and liquid-tight.The term " liquid-tight " that the present invention is used for breathable backsheet only relates to prevention liquid from the effusive barrier of articles for use.In principle, do not think and to enter fluid removal in the articles for use by breathable backsheet outside this term.
The used suitable monolayer breathable backsheet of the present invention comprises those as describing those in GB A 2 184 389, GBA2 184 390, GBA 2 184 391, US 4 591 523, US 3 989 867, US 3 156242 and EP application number 95120653.1.
Suitable bilayer that the present invention is used or multi-layered gas-permeable egative film comprise those that those are exemplified in US 3 881 489, US 4 341 216, US 4 713 068, US 4 818 600, EPO 203 821, EPO 710471, EPO 710 472, European Patent Application No. 95120647.3,95120652.3,95120653.1 and 96830097.0.
The egative film that satisfies defined requirement in European Patent Application No. 96830343.8 is particularly preferred, and more preferably wherein absorbent device generally also satisfies wherein described requirement.The adhesive that localized immobilization is used
Articles for use of the present invention described above are directly used on the skin of user.Particularly, sanitary towel is used in the fluid discharge district genital area on every side by general women's user.The term that the present invention uses " skin " not only relates to the concrete skin of user really, and comprises mucous tissue and the common hair that occurs at the genital area of sanitary towel's user.
For articles for use of the present invention being fixed on the skin of user, also be necessary at the adhesive (as being called the body and function adhesive) that on the specific region on the top flat of wearer's articles for use, provides localized immobilization to use.
Can consider the different designs of this aspect, thereby still preferred periphery along top flat provides the body and function adhesive to stay the zone line of the articles for use that do not have adhesive.Thereby this will the most suitably make things convenient for the top flat of liquid thoroughly that does not have adhesive above the placement of articles for use be placed on the body fluid release aperture near, to such an extent as to do not have possibility leak or the situation of overflowing under, the liquid of release is transported in the absorbent structure of absorbent device immediately.
But, the body and function adhesive is arranged on the circle of closure on the periphery of top flat and there is no need, but it can be arranged in the zone that increases progressively as point or discrete line, thereby the separation between the different fixing position provides additional comfortableness for the wearer of these class articles for use.
In order to satisfy purpose of the present invention, should consider following content.The physics of body and function adhesive, rheology and adhesive property
Even use the body and function adhesive at human body skin hair and viscosity tissue, as pressure-sensitive adhesive, be understood that the most distinctive rheologic behavio(u)r of body and function adhesive compound, can only regard typical pressure-sensitive adhesive (PSA hereinafter referred to as) with great difficulty as according to this class material of discriminating.
In fact, known to the those of ordinary skill of adhesive area, the feature that PSA is different from the tool characteristic of other material that can temporarily cling article (as water) is its rheological parameters, particularly elastic modulus G ' along with the frequency change of the stress that is applied is very big.More specifically, when the frequency of the stress that is applied during from typical bonding frequency change to typical releasing bonding frequency, promptly during hereinafter described 1 radian per second to 100 radian per second, the size of the G ' of PSA can increase more than the several magnitude.
Therefore, can draw by under given frequency values, provide rheological parameters particularly the value of the G ' material that will plan to use to be defined as " adhesive " be unallowed.This may make the people misread, because under the situation that lacks other characteristic, may comprise the material that does not have actual value.Therefore, it is believed that and think that rheological properties must consider that item is a basis with kinetics.
This be not only applicable to elastic modulus G ', and ", therefore also be applicable to tan (δ)=G "/G ' that is applicable to viscous modulus G.Well-knownly be that not only the variation of G ' is bigger for typical PSA under the frequency of being considered, and G " variation bigger; G " may level off to G ', perhaps even bigger than G ', promptly tan (δ) approximately or even greater than 1, particularly removing under the agglutinating typical frequency.
Do not wish to accept the end of opinion, this can be interpreted as meaning that major part is used for removing agglutinating energy expenditure internal friction (causing that therefore it is not effective removing on the bonding), although should cause showing as very big cohesive force on the fact macroscopic view.
As mentioned above, the material that is used as body and function adhesive of the present invention has rheological properties, and they are as measuring under 37 ℃ of reference temperatures of body temperature He under a series of frequencies.Have now found that, when being applied to the body and function adhesive on the articles for use, under lower frequency, forming the adhesive contact, and bonding takes place to remove under the speed of removing articles for use.This speed represents with frequency 100 radian per seconds, and has now found that the low frequency that forms adhesive bonds is on the order of magnitude of 1 radian per second.Therefore, the used frequency range of the present invention is 1～100 radian per second.
And should be noted in the discussion above that G ' and G under the applying frequency of getting 1 radian per second under 37 ℃ the temperature ".In the practical application of articles for use of the present invention, the variations in temperature of body and function adhesive is very big when the physical holding of the stock temperature of articles for use and use.As the temperature that stores near the warmer the stew can should approach 0 ℃ and be stored in the storeroom or the temperature in the bathroom that do not have heating but window winter up to 37 ℃.But, because articles for use of the present invention directly are applied on the skin, those of ordinary skills have little specific heat capacity with selecting (as preferably less than 4J/g/K, be more preferably less than 3J/g/K, most preferably less than 2J/g/K) adhesive compound, the actual temperature of body and function adhesive will reach very soon 37 ℃ or even before using by wearer's preheating.Therefore, it is believed that the bonding characteristic of the most suitable selection adhesive under body temperature.
For good bonding condition is provided, promptly under the frequency of 1 radian per second, the absolute value of elastic modelling quantity should be too not high, otherwise adhesive too hard and can not closely connect or be molded into it will adherent surface on." valuable especially good bonding also is important to G on the human body to being applied directly to so that have to have lower absolute value, and material keeps soft and can mildly be bonded on the skin simultaneously.
" 37 (1 radian per seconds) are important to ratio G ' 37/G, to guarantee that these two values are equilibrated when being administered to disposable absorbent article on the skin.Simultaneously, in the frequency range of being considered, need the absolute change of restriction G ' 37.Therefore, should keep Δ G ' 37 (being G ' 37 (100 radian per second)-G ' 37 (1 radian per second)) less with the ratio of G ' 37 (1 radian per second), so that between the whole operating period, keep disposable absorbent article safety to be fixed on the wearer, and can not cause during this or removing/uncomfortable when peeling off.This also can represent with absolute value by Δ G ' 37 is remained on below the particular value.
Importantly, ratio
Need enough greatly so that the kinetic property with a kind of like this relation (that is, provide during use safety bonding and use the end of term to provide painless and remove easily) maintenance elasticity and viscous modulus to be provided.
At last, those of ordinary skills will appreciate that also glass transition temperature Tg, specific heat capacity and the specific heat conductance of adhesive compound are the useful parameters that is limited with the body and function adhesive of usefulness more comprehensively.
Should satisfy following feature:
O G ' 37 (1 radian per second) in the scope of 1500-20000Pa, preferred 1500-15000Pa, most preferably 3000-10000Pa;
O G " 37 (1 radian per seconds) in the scope of 100-15000Pa, preferred 100-10000Pa, most preferably 300-5000Pa;
O ratio G ' 37 (1 radian per second)/G " 37 (1 radian per seconds) in the scope of 2-50,3-30 preferably;
O ratio
Be not less than 0.5, preferably in the scope of 0.7-3, more preferably in the scope of 1-1.8;
O or ratios delta G ' 37/G ' 37 (1 radian per second) are not more than 1.5, preferably are not more than 1, most preferably are not more than 0.8; Perhaps
Δ G ' 37 is not more than 10000Pa, preferably less than 5000Pa, most preferably less than 2000Pa; Perhaps above-mentioned both;
O is the G ' 37/G in the frequency range of 1～100 radian per second at least " 37 ratio should be preferably 2 or bigger, and more preferably 3.3 or bigger, simultaneously at arbitrary place of frequency interval, be no more than about 50, preferred 30;
The o rheological property also can be relevant with the value of glass transition temperature Tg.For body and function adhesive of the present invention, Tg should be more preferably less than-20 ℃, most preferably less than-25 ℃ preferably less than-15 ℃;
The acceptance of o rheological property and the disposable product that contains topical adhesive is also relevant with specific heat capacity.The preferably local specific heat capacity that sticks with glue agent is more preferably less than 3J/g/K, most preferably less than 2J/g/K less than 4J/g/K;
The acceptance of o rheological property and the disposable product that contains topical adhesive is also relevant with the specific heat conductance of adhesive.Preferably the specific heat conductance is preferably greater than 0.6W/m/K greater than 0.1W/m/K, most preferably greater than 1W/m/K.The chemistry of body and function adhesive and compositions feature
Body and function adhesive compound for needs that the top preferred rheology that satisfies the body and function adhesive and physical characteristic are provided can use following preparation standard in addition.It should be noted that the most compositions that is used as the body and function adhesive has gelationus basically structure, preferably glue.This comes from the following fact:
-key component is the plasticizer that at room temperature is the material of liquid.
-macromole or polymers compositions are compared with less amount with plasticizer and are existed.In preferred embodiments, it forms the three-dimensional network that is formed by intermolecular physics or chemical bond.Useful especially secondary or physical bond is to contain those keys that exist in the system of inlay section thermal plastic elastic body.
More specifically, compositions typically contains:
A) 0.5～20%, the solubilized of preferred 5-15% weight or swell in macromolecular polymeric material in the plasticizer cited below or the mixture of this class material.As non-limiting instance, the macromolecular or polymer material of this class is natural and/or synthetic, as natural gum or derivant such as natural gum and gelatin, its derivant and alginate; Polyacrylic (polyacrilics); Polyvinyl alcohol; Polyethylene glycol oxide; Polyvinylpyrrolidone (PVP) or polyvinylether, its copolymer and derivant; Cellulose derivative; The block copolymer thermoplastic elastomer, preferably cinnamic block copolymer is more preferably styrene/ethylene-butylene/styrene (SEBS), styrene/isoprene/styrene (SIS) and the styrene/ethylene-propylene/styrene (SEPS) of hydrogenation level.
B) mixture of the plasticised mass of 51～99.5% weight or plasticised mass, it at room temperature is a liquid.As non-limiting instance, plasticizer can be water, various alcohol (as glycerol particularly), glycol and its ether, Polyethylene Glycol, liquid polybutene, ester such as phthalic acid ester, adipate ester, stearate, cetylate, sebacate or myristinate, natural or artificial oil such as vegetable oil, mineral oil or its combination.
C) tackifying resin of the weight of 0～600% macromolecule polyalcohol, its main scope are to adjust Tg, particularly based on the Tg of the system of synthetic polymer.
D) 0～10%, more preferably 0～5% weight be used to be convenient to and the gelling of stable hydrophilic or hydrophobic liquid plasticizer and the material of gelling forming process.These can be used for the oily system, as C
8～C
22Fatty acid, its slaine and its polyoxy for derivant; Lanolin derivative; Silicon dioxide; Bentonite, montorillonite clay and derivant thereof, polyamide, wax or its mixture.
Also can contain every kind of consumption up to 10% the conventional additives that changes agent etc. for antiseptic, antioxidant, ultraviolet (UV) resistant agent, pigment, mineral filler, rheology known in the art.
When forming chemical crosslinking in the system, cross-linking agent can preferably exist with the amount up to 5% weight.Chemical crosslinking also can be by having different functional groups the mutual neutralization of polymer form, as the reaction between acid polyacrylic and the poly-polysaccharide.
The compositions of the body and function adhesive of gained is according to key component, and promptly the character of liquid plasticizer can be divided into three classes:
1) hydrophobic composition, the concurrent mixture of the oil of normally a kind of oil of plasticizer or plant or mineral sources wherein, polymer normally dissolves in or swells in the synthetic polymer in the oil, preferably elastomer.
2) mixed phase compositions, wherein hydrophobicity and hydrophilic component (may in plasticizer and polymer) form two or more separating mutually.In this case, emulsifier/surfactant preferably exists to form inconsistent alternate stable emulsion with suitable content.For body and function adhesive of the present invention, preferably to compare with hydrophilic component be main to hydrophobic components.
3) hydrophilic composition, normally water/glycerol/glycol etc. and/or its mixture of plasticizer wherein, and polymer phase is synthetic (as polyacrylic) or natural (as natural gum) source or its mixture.
What should emphasize is, knownly with medical domain different with prior art that quote is, hydrophilic compositions is not preferred, and hydrophobic and mixed phase compositions 1) and 2) be preferred in an application of the invention.
This part depends on technical reason, because the used many hydrophilic compositions of medical domain show too low elastic property and the cohesiveness useful to the present invention.Preferred other reason hydrophobic or the mixed phase compositions is that the present invention is applied to the probability that the sanitary towel field comprises that the body and function adhesive contacts with the liquid that will absorb especially.Because the liquid that will absorb all is moisture class usually, contacts and to cause a certain amount of aqueous body fluids suction body to stick with glue in the agent so stick with glue agent with hydrophilic body.
Such result is rheologic behavio(u)r and its function that changes the body and function adhesive, causes antihygienic outward appearance, and causes body fluid direct and contact skin in long time, and this is not that any disposable absorbent article of the present invention is needed usually.In addition, this also may constitute potential defective to user.Because some hydrophilic compositions may be many microorganisms even the good culture medium that comprises pathogen.
And hydrophilic body and function adhesive also can be thought of as cold and wet, and when using clean sanitary towel or oxter sweat-blocking pad, this can not meet the expectation of ordinary consumer.Other problem comes from and particularly contains water and have the trend that drying is fallen as the body and function adhesive of plasticizer, unless they are sealed to impermeable packing.
Absorbent device of the present invention can be by this area any method preparation commonly used.Adhesive applications can not caused big problem for those of ordinary skills to the top flat side of absorbent device, because it can provide by similar techniques, as being generally used for medicated underpants fixing glue stick.The gross area towards the wearer surface of the absorbent device that is covered by the body and function adhesive should not surpass 20%, preferably be no more than 10%.Preferably, adhesive is near the periphery of absorbent device, and membranaceous top flat (or when egative film is folded on the top flat), adhesive is preferably on liquid-tight that a part of film.
Body and function adhesive on the articles for use (also common as medicated underpants fixing glue stick) needs protection before use.This protection need be by paper release liner such as siliconization or that surfactant was handled, and condition is that this paper is the good adherent surfaces that the body and function adhesive of special selection is used.
In principle, absorbent device of the present invention is bearing on the wearer by the body and function adhesive, and does not need extra supporter to fix.But, on backsheet side, provide a nonskid coating so that prevent that sanitary towel from shifting out original position gradually also is possible as sanitary towel.And, do not want even medicated underpants fixing glue stick is required for the present invention, thus neither be preferred, and they are not got rid of outside content of the present invention by strictness yet.
Embodiment 1
Use the Kraton G-1651 of 9.9% weight, cinnamic styrene/ethylene-the butylene/styrene block copolymer that promptly contains 33% weight, and available from Shell Co., the Kaydol of 59.3% weight, a kind of paraffin mineral oil available from Witco Co. is prepared the used compositions based on oil of sanitary towel of the present invention.
And compositions contains 301 parts of tackifying resin/100 part Kraton polymer.Tackifying resin is Escorez 5300, a kind of hydrogenant resin available from Exxon Co..
Use is available from the magnesium stearate of the Carlo Erba S.p.A gellant that helps as oil usefulness, and its consumption is 0.7% weight.
Add Irganox 1010, a kind of antioxidant available from Ciba-Geigy, its consumption is 0.3% weight.
Therefore, compositions finally has following percentage composition:
Kraton G-1651 9.9% weight
Kaydol 59.3% weight
Escorez 5,300 29.8% weight
Magnesium stearate 0.7% weight
Irganox 1,010 0.3% weight
In the time of 37 ℃, compositions table reveals following rheological properties:
A) elastic modelling quantity when 1 radian per second, G ' 37=6876Pa;
B) viscous modulus when 1 radian per second, G " 37=5505Pa;
C) the ratio G ' 37/G " 37=12.49 of elastic modelling quantity and viscous modulus when 1 radian per second;
D) ratio
＝1.22；
E) ratios delta G ' 37/G ' 37 (1 radian per second) is 0.308, Δ G ' 37=2124Pa.
Above-mentioned composition is judged as comfortable when being used on the skin responsive, hirsutism.Comparative Examples
Use the Kraton G-1651 of 7.1% weight, a kind of styrene/ethylene-butylene/styrene block copolymer that contains 33% weight styrene, merge Co. in Shell, with the Kaydol of 41.9% weight, a kind of paraffin mineral oil available from Witco Co. is prepared the compositions based on Componotine oil.
And compositions contains 704 parts of tackifying resin/100 part Kraton polymer.Tackifying resin is Regalrez 3102, a kind of hydrocarbon resin available from Hercules Co..
Use is available from the magnesium stearate of the Carlo Erba S.p.A gellant that helps as oil usefulness, and its consumption is 0.7% weight.
Add Irganox 1010, a kind of antioxidant available from Ciba-Geigy, its consumption is 0.3% weight.
So compositions finally has following percentage composition:
Kraton G-1651 7.1% weight
Kaydol 41.9% weight
Regalrez 3,102 50.0% weight
Magnesium stearate 0.7% weight
Irganox 1,010 0.3% weight
In the time of 37 ℃, compositions table reveals following rheological property:
A) elastic modelling quantity when 1 radian per second, G ' 37=3059Pa;
B) viscous modulus when 1 radian per second, G " 37=1208Pa;
C) the ratio G ' 37/G " 37=2.53 of elastic modelling quantity and viscous modulus when 1 radian per second;
D) ratio
＝-2.87；
E) ratios delta G ' 37/G ' 37 (1 radian per second) is 3.944, Δ G ' 37=12064.7Pa.
Above-mentioned composition is judged as very uncomfortable when being used on the skin of forearm.It is unacceptable being administered on the skin of responsive hirsutism.
Claims (10)
1. a part sticks with glue agent and is fixed to disposable absorbent article on the wearer of described articles for use, said articles for use have a surface and the surface towards medicated clothing towards the wearer, described articles for use is characterized in that at described surface and the described absorbent article core that contains between the surface of medicated clothing towards the wearer:
Described absorbent article core contains parts that are used for when wearing these articles for use being expand into three dimensional structure, and described parts are preferably by the liquid activation that absorbs; And
Described articles for use are at the described adhesive that contains on wearer's surface to small part, and the topical adhesive that is used for described articles for use is fixed;
Described adhesive has an elastic modulus G ' 37 and a viscous modulus G under the temperature of 37 ℃ (100) " 37,
Select described adhesive to have following character:
O G ' 37 (1 radian per second) in the scope of 1500-20000Pa, preferred 1500-15000Pa, most preferably 3000-10000Pa;
O G " 37 (1 radian per seconds) in the scope of 100-15000Pa, preferred 100-10000Pa, most preferably 300-5000Pa;
O ratio G ' 37 (1 radian per second)/G " 37 (1 radian per seconds) in the scope of 2-50,3-30 preferably;
O ratio
Be not less than 0.5, preferably in the scope of 0.7-3, more preferably in the scope of 1-1.8;
O replacedly, perhaps G ' 37 (100 radian per second)-G ' 37 (1 radian per second) is not more than 10000Pa, preferably less than 5000Pa, is more preferably less than 2000Pa;
Perhaps ratio (G ' 37 (100 radian per second)-G ' 37 (1 radian per second))/G ' 37 (1 radian per second) is not more than 1.5, preferably is not more than 1, most preferably is not more than 0.8; Perhaps both combinations.
2. the articles for use of claim 1, wherein G ' 37/G in the frequency range of 1-100 radian per second " 37 ratio in the scope of 2-50, preferred 3.3-30.
3. claim 1 or 2 disposable absorbent article, wherein said adhesive is the compositions of following material, contains:
51～99.5% weight in 20 ℃ of plasticized compounds that are in a liquid state or component;
0.5 the solubilized of～20% weight or swellable are in the polymer or the component of described plasticized compound or component;
Tackifying resin, its consumption are the described polymer or the component of 0～600% weight.
4. each absorbent device among the claim 1-3, the glass transition temperature Tg of wherein said adhesive is more preferably less than-20 ℃, most preferably less than-25 ℃ less than-15 ℃.
5. each absorbent device among the claim 1-4, the specific heat capacity of wherein said adhesive is more preferably less than 3J/g/K less than 4J/g/K, most preferably less than 2J/g/K.
6. each absorbent device among the claim 1-5, the specific heat conductance of wherein said adhesive is preferably greater than 0.6W/m/K greater than 0.1W/m/K, most preferably greater than 1W/m/K.
7. each articles for use among the claim 1-6, the parts of the wherein said described articles for use that are used to expand contain the regenerated cellulosic sponge sheet of compression.
8. the articles for use of claim 7, it is sanitary towel or scanties lining, its thickness range is the 1-5 millimeter, 1.5-3 millimeter preferably, it mainly increases the thickness of articles for use thereby wherein said sponge is expanded, and makes the described more close described wearer in surface towards the wearer.
9. each articles for use among the claim 1-8 is characterized in that described surface towards the wearer is provided by top flat, and described top flat can expand so that adapt to the expansion that is used for described articles for use are expand into the described parts of three dimensional structure.
10. each absorbent device among the claim 1-9, wherein said disposable absorbent article is sanitary towel or scanties lining, described adhesive cover described towards the wearer surface be less than 20%, preferably less than 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97180972 CN1241922A (en) | 1996-12-23 | 1997-12-22 | Disposable absorbent article capable of self shaping in use and applied with a topical adhesive to the skin of a wearer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97110733.9 | 1997-07-01 | ||
| EP96120737.0 | 1997-07-01 | ||
| CN 97180972 CN1241922A (en) | 1996-12-23 | 1997-12-22 | Disposable absorbent article capable of self shaping in use and applied with a topical adhesive to the skin of a wearer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1241922A true CN1241922A (en) | 2000-01-19 |
Family
ID=5178000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97180972 Pending CN1241922A (en) | 1996-12-23 | 1997-12-22 | Disposable absorbent article capable of self shaping in use and applied with a topical adhesive to the skin of a wearer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1241922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107072827A (en) * | 2014-09-09 | 2017-08-18 | H.B.富乐公司 | Disposable garment |
-
1997
- 1997-12-22 CN CN 97180972 patent/CN1241922A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107072827A (en) * | 2014-09-09 | 2017-08-18 | H.B.富乐公司 | Disposable garment |
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