CN1322847C - Absorbent article - Google Patents
Absorbent article Download PDFInfo
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- CN1322847C CN1322847C CNB200310102786XA CN200310102786A CN1322847C CN 1322847 C CN1322847 C CN 1322847C CN B200310102786X A CNB200310102786X A CN B200310102786XA CN 200310102786 A CN200310102786 A CN 200310102786A CN 1322847 C CN1322847 C CN 1322847C
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- alar part
- heat fusing
- fiber
- retractility
- woven fabrics
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Abstract
To provide an absorbent article which excels in the fitness, the operability of the wing parts and/or the stability in fixing on the shorts and the like by arranging the soft stretchable wing parts which are made to prevent the generation of sounds and have a sufficient strength.In the absorbent article which has an absorbing body 11, longitudinal in substance, including a liquid retaining absorption layer 12 and a liquid-impermeable rear layer 15 and a pair of wing parts 16, extending from both side rim parts of the absorbing body 11, each of which 16 is formed of a stretchable nonwoven fabric 1 containing a crimped stable, with a crimp tendency, and a hot melting staple and has at least two areas 18 and 19 different in stretchability. A hot melting part is partially formed in each of the two areas and the formation pattern of the hot melting part is differentiated between both the areas to cause the difference in the stretchability.(C)2004,JPO.
Description
Technical field
The present invention relates to absorbing products such as sanitary napkin, underpants, mistake flap pad.
More particularly, the present invention relates to comprise have full intensity, softish and prevent sonorific retractility alar part, and paste the operability of suitable property, alar part and/or to the excellent absorption goods such as stability maintenance of medicated underpants, and also relate to comprise have full intensity, softish and prevent sonorific retractility alar part, and have when dressing, correct the function that it installs inadequate balance, paste the good and absorbing products that can successfully dress medicated underpants of suitable property.
Background technology
Now, the sanitary napkin with alar part is widely known.
The alar part of this sanitary napkin normally is provided with adhesion layer on its single face, when sanitary towel uses along underclothes such as medicated underpants (below, be referred to as medicated underpants simply) the edge part of lower crotch folding, and be fixed on the outer surface of these underclothes by this adhesion layer.Such alar part does not have retractility usually, so under the situation that bending is used when dressing, sanitary towel produces distortion, is easy to cause to the suitable property of the subsides of wearer insufficient.
In addition, as a rule, alar part constitutes the back layer sheet material by resin molding and extends out from the both sides of the edge portion of absorber and form, so produce click caye click caye sound when dressing sanitary towel and/or in the wearing of sanitary towel, causes discomfort to user.
Again, the also known absorbing products of giving property upheld or retractility for alar part (comprising the situation that is expressed as aileron portion).
For example, the spy to open the device (pressure-sensitive binding agent) that discloses in the flat 3-191958 communique on the underclothes that are used to be installed in wearer be to be attached to the lip-deep sanitary towel that has aileron portion that can flexibly uphold in the horizontal.But the aileron portion of disclosed sanitary towel is by the back layer sheet material of liquid impermeability being extended out from the both sides of the edge of absorber and forming, so might produce sound when dressing sanitary towel and/or in the wearing of sanitary towel.
Again, the part that can flexibly uphold is by forming in the folding spring structure portion that is provided with of the root portion of aileron portion in the horizontal, so complex structure, and in order to keep spring structure, the junction surface will be set partly, so retractility is low, and will be accompanied by the distortion that the extension of aileron portion (alar part) produces by the junction surface and send sanitary towel's absorber to.
And, in the flat 6-51171 communique of special table, put down in writing root portion in aileron portion, at position, be formed on the sanitary napkin that has ductile stiff extensibility zone on the width of sanitary towel near the two ends of sanitary towel's length direction.
This aileron portion also forms by liquid impermeability back layer sheet material is extended out from the both sides of the edge of absorber, and sonorific worry is arranged.
Again, described extensibility zone in this sanitary towel is non-resilient, and two bights at the length direction of the sanitary towel of the root portion of aileron portion form, so become the structure that is difficult to the distortion that action is produced is sent to sanitary towel's main body, but because there is not elasticity, so, feel uncomfortable sometimes because the action of wearer can produce the more than needed of extension.
Also have, open in the flat 2-7956 communique, put down in writing and have the aileron portion that extends out from the both sides of the edge portion of absorbent main body, and have the sanitary napkin of the elastic part that extends along the length direction of absorbent main body in this aileron portion the spy.The described elastic part of this sanitary towel has the structure of longitudinal extension, so though have the structure that is easy to fold along the edge part of underclothes, do not have the stain function in addition that coats underclothes.
Open among the flat 9-299397 in the communique the spy, disclose the sanitary napkin that on alar part, replaces adhesion layer and the male part of mechanical fastener is set.This sanitary napkin is that the male part with side's alar part setting is fastened and uses at the opposing party's alar part.
But this sanitary towel can not improve fully to the suitable property of the subsides of wearer, and might produce sound when dressing sanitary towel and/or in sanitary towel's wearing.
Again, in the past, also use the formation material of non-woven fabrics sometimes, but this non-woven fabrics is compressed into enforcement with resin thin film layer and is used usually because of the problem of intensity as alar part.
Summary of the invention
First purpose of the present invention provide comprise have full intensity, softish and prevent sonorific retractility alar part, and paste the operability of suitable property, alar part and/or to the excellent absorption goods such as stability maintenance of medicated underpants.
Second purpose of the present invention provide comprise have full intensity, softish and prevent sonorific retractility alar part, and have when dressing, correct the function that it installs inadequate balance, paste the good and absorbing products that can dress smoothly medicated underpants of suitable property.
The present invention is by providing following absorbing products, and realized first above-mentioned purpose: described each alar part of this absorbing products is formed by the non-woven fabrics that contains curling crimpiness fiber and hot-melt-bondable fiber and have a retractility, this each alar part has at least two zones that retractility is different, on these two zones, form the heat fusing bonding part respectively partly, and these two zones are owing to the different formation pattern of described heat fusing bonding part has different retractility (below be referred to as first invention).
The present invention is by providing following absorbing products, and realized second above-mentioned purpose: this absorbing products has the in fact vertically long absorbent main body of the back layer of the absorbed layer that comprises liquid retainability and liquid impermeability, the a pair of alar part that extends out with both sides of the edge portion from absorbent main body, wherein said each alar part is to be formed by the non-woven fabrics that contains curling crimpiness fiber and hot-melt-bondable fiber and have a retractility, and forms the heat fusing bonding part partly on described this non-woven fabrics; And described both wing portions at least separately part when the wearing of described absorbing products can overlap, on single of side's alar part, set the male part of mechanical fastener, and single of the opposing party's alar part when this both wing portions overlaps and the described male part that can directly be fastened (below be referred to as second invention).
Description of drawings
Fig. 1 is the oblique view of expression as the partly cut-away of the sanitary napkin of first embodiment of first invention.
Fig. 2 is the plane graph of the formation pattern of the heat fusing bonding part in the alar part of sanitary napkin of presentation graphs 1.
Fig. 3 is the sketch map of cross section of alar part of the sanitary napkin of presentation graphs 1, the i.e. sketch map of the X-X cross section of Fig. 2.
Fig. 4 is the schematic cross section that the sanitary napkin of presentation graphs 1 is fixed to the state on the medicated underpants.
Fig. 5 is the plane graph (figure suitable with Fig. 2) that is illustrated in as the formation pattern of the heat fusing bonding part of alar part in the sanitary napkin of first second embodiment of inventing.
Fig. 6 is the schematic cross section that is illustrated in as the sanitary napkin of first the 3rd embodiment of inventing.
Fig. 7 is the schematic cross section that is illustrated in as the sanitary napkin of first the 4th embodiment of inventing.
Fig. 8 is the schematic cross section that is illustrated in as the sanitary napkin of first the 5th embodiment of inventing.
Fig. 9 is the schematic plan view that is illustrated in as the sanitary napkin of first the 6th embodiment of inventing.
Figure 10 is that expression will be as the oblique view of sanitary napkin partly cut-away of first embodiment of second invention.
Figure 11 is the plane graph that is illustrated in the formation pattern of the heat fusing bonding part that the alar part of the sanitary napkin of Figure 10 forms.
Figure 12 is the sketch map of cross section of alar part of the sanitary napkin of expression Figure 10, the i.e. sketch map of the Y-Y cross section of Figure 11.
Figure 13 is the schematic cross section that the sanitary napkin of expression Figure 10 is fixed to the state on the medicated underpants.
Figure 14 is the state before being fixed on the medicated underpants is dressed in expression as the sanitary napkin of second embodiment of second invention a schematic cross section.
Figure 15 is the schematic cross section that is illustrated in as the sanitary napkin of second the 3rd embodiment of inventing.
Figure 16 is the schematic cross section that is illustrated in as the sanitary napkin of second the 4th embodiment of inventing.
Figure 17 is the schematic cross section that is illustrated in as the sanitary napkin of second the 5th embodiment of inventing.
Figure 18 (a) and Figure 18 (b) are the plane graphs of formation pattern of heat fusing bonding part of other embodiment of expression second invention.
The specific embodiment
Below, the present invention will be described in detail based on the accompanying drawing of the preferred embodiments of the invention with reference to accompanying drawing.
As shown in Figure 1, the sanitary napkin 10 of first embodiment as first invention comprises: have the in fact vertically long absorber main body 11 of back layer 15 of the absorbed layer 12 of liquid retainability and liquid impermeability and a pair of alar part 16 that extends out from the both sides of the edge portion of the length direction of this absorbent main body 11.
As shown in Figure 1, each alar part 16 is to form by the both sides of the edge portion that will be fixed on absorbent main body 11 respectively as the non-woven fabrics of the material different with the formation material (surficial sheets 13, absorber 14 and back-sheet 15) of absorbent main body 11.As Fig. 2～shown in Figure 4, on the single face of the non-woven fabrics 1 that constitutes each alar part, adhesion layer 17 is set, this adhesion layer 17 is used for the alar part 16 along the edge part warpage of medicated underpants lower crotch is fixed on the outer surface of this medicated underpants.
The non-woven fabrics 1 that constitutes each alar part 16 contains curling crimpiness fiber and hot-melt-bondable fiber, thereby elastomeric element is not set, and itself also has retractility.
In this manual, so-called retractility preferably is meant, uphold in order to the tensile force that pulls the degree of stretching, when this tensile force is eliminated, its contraction and the character of getting back to original state, and, when this tensile force disappears, have the elasticity of the degree of getting back to original state basically at the tensile force that applies with the light level of stretch of have gentle hands.
In the sanitary towel 10 of the present embodiment used non-woven fabrics 1 be included in absorbent main body 11 length direction (identical) with the length direction of sanitary towel and with the orthogonal direction of this direction on, in the plane of non-woven fabrics 1 can elastic telescopic on 360 ° the whole direction.
Again, so-called " retractility difference " is meant, the degree of under the situation that gives identical tensile force, upholding (percentage elongation etc.) difference, and " retractility height " is meant that the degree of extension is big.
As shown in Figure 3, the described non-woven fabrics 1 in the present embodiment comprises: contain curling crimpiness fiber and first fibrous layer 2 of the hot-melt-bondable fiber that do not curl and do not contain this crimpiness fiber or to contain second fibrous layer 3 of this crimpiness fiber than lower content in first fibrous layer 2; First and second fibrous layers the 2, the 3rd, partly heat fusing is bonding with mutual laminated state, has formed many heat fusing bonding parts 4 in this non-woven fabrics 1.Second fibrous layer 3 is by the fiber identical with hot-melt-bondable fiber in first fibrous layer 2 or different types of fibrous.
Heat fusing bonding part 4 is to form by laminated first and second fibrous layers 2,3 are implemented partial heating pressurized treatments such as hot pressing stricture of vagina or ultrasound wave embossing.
First fibrous layer 2 is formed for being provided with the surface (below, also be referred to as lower surface) of the described adhesion layer 17 of alar part 16, and second fibrous layer 3 forms the surface (below, also be referred to as upper surface) of described adhesion layer 17 sides that alar part 16 is not set.
The described crimpiness fiber that contains in non-woven fabrics 1 is to have a fiber that produces the characteristic of curling by predetermined processing itself, and when it is included under the state of alar part of sanitary towel, at least a portion fiber produces curling.And the crimpiness fiber begins not fusion basically below the temperature in the fusion of the hot-melt-bondable fiber that is used in combination with it.
Described crimpiness fiber preferably adopts by thermoplastic, polymeric materials and constitutes and produce the potential crimping property fiber that helical form is curled by heat treatment.
The potential crimping property fiber before heating can with before the fiber used of non-woven fabrics carry out same operation, and have the fiber that produces the spiral helicine characteristic of shrinking of curling by heating at predetermined temperature.When using the potential crimping property fiber, first fibrolaminar thermal contraction in the time of can realizing the non-woven fabrics manufacturing simultaneously and the elastic extension (elastomeric behavior) after the contraction.
The potential crimping property fiber is by for example constituting with the eccentric core-sheath-type composite fibre or the parallel composite fiber of the different two kinds of thermoplastic, polymeric materials of shrinkage factor as composition.The example comprises that the spy opens flat 9-296325 communique or speciallys permit those that put down in writing in No. 2759331 description.Comprise as thermoplastic, polymeric materials: polyester such as polyolefin such as polyethylene or polypropylene, polyethylene terephthalate, polyamide etc.
The described hot-melt-bondable fiber that contains in non-woven fabrics 1 is its melt surface at least by being heated to predetermined temperature, because its fusion and curing and can be so that heat fusing is bonding between the fiber.
Described heat fusing bonding part 4 in the present embodiment is meant, the fusion of the hot-melt-bondable fiber that first fibrous layer 2 and second fibrous layer 3 contain by this first fibrous layer and/or second fibrous layer and curing and on thickness direction incorporate part, form by implementing partial heating pressurized treatments such as hot pressing stricture of vagina or ultrasound wave embossing.Again, heat fusing bonding part when constituting alar part 16 by the non-woven fabrics that is formed by single fibrous layer forms by implement partial heating pressurized treatments such as hot pressing stricture of vagina or ultrasound wave embossing on its fibrous layer, and carries out the adherent part of heat fusing by fusion and curing between the hot-melt-bondable fiber in this fibrous layer.
As the hot-melt-bondable fiber that in non-woven fabrics 1 (first and/or second fibrous layer), contains, the preferred material that constitutes by thermoplastic, polymeric materials that adopts.Thermoplastic, polymeric materials comprises: polyester such as polyolefin such as polyethylene or polypropylene, polyethylene terephthalate, polyamide etc.In addition, also can use core-sheath-type composite fibre (particularly concentric type) or the parallel composite fiber that obtains by these thermoplastic, polymeric materials combinations.
Non-woven fabrics 1 in the present embodiment is by carrying out lamination with first fibrous layer and second fibrous layer that admixture contains crimpiness fiber and hot-melt-bondable fiber, make both heat fusing is bonding partly by heating pressurized treatments partly, in the adherent while of its heat fusing or afterwards, by heat treatment (hot blast processing etc.) the fibrous layer thermal contraction of winning is formed.The first fibrolaminar thermal contraction is by the crimpiness fiber in first fibrous layer because curling the causing that described heat treatment produces.
The form of the fiber assembly of first and second fibrous layers before making first fibrous layer and the second fibrous layer heat fusing bonding as formation, can list, for example (1) is by the fleece of combing method formation, (2) non-woven fabrics by the bonding formation of heat fusing, the non-woven fabrics that forms by current interlacing method, the non-woven fabrics that forms by needle point method, the non-woven fabrics that forms by solvent bonding, the non-woven fabrics that forms by spun-bond process, the non-woven fabrics that forms by meltblown etc., and the non-woven fabrics of various method for makings etc.Be meant the fiber composite of the state before carry out non-woven fabricsization by the fleece of combing method formation.That is to say that the used post processing that is applied to carded web for example is not apply by air permeability method (air through) or calendering method to form between the state, fiber of heating and melting adhesion process the extremely slowly fiber assembly of the state of interlacing when making non-woven fabrics.When in first fibrous layer and/the second fibrous layer, using the fleece that forms by combing method, make first and/or second fibrous layer 2, the adherent while of 3 heat fusings, or heat fusing bonding after, bonding or by binding agent (jointing material) and bonding or mechanically interlacing is together between the fiber in first and/or second fibrous layer by heat fusing.
In first and/or second fibrous layer 2,3, the fiber outside also can blending above-mentioned, for example hygroscopicity fibres such as rayon fiber, cotton fiber, hydrophiling acrylic fibers.
Except the elasticity that the loop construction by the crimpiness fiber that curls causes, the network structure of hot-melt-bondable fiber becomes the structure of shrinking by the crimpiness fiber that curls, and the effect of demonstrating flexibility, produce the retractility of the elasticity aspect of non-woven fabrics 1 thus.
Promptly, crimpiness fiber and hot-melt-bondable fiber in first fibrous layer are in admixture, in the manufacturing process of non-woven fabrics, heat fusing is bonding and when forming network structure, a part that constitutes the fiber of this network structure is involved in to the loop construction that produces the crimpiness fiber that curls between the hot-melt-bondable fiber.This network structure is because gone into many hot-melt-bondable fibers in the loop construction curls inward, so when network structure is shunk, network structure self demonstrates spring function (when the power of applying makes that network structure is upheld, it is big that the coil diameter of coil-like fiber becomes, perhaps the length of coil demonstrates the action of extension, and when power discharges, coil-like fiber restores, and network structure is shunk).
From making non-woven fabrics show the viewpoint of the network structure of elastic reaction, first fibrous layer 2 preferably contains 5～70 weight %, especially preferably contains the described hot-melt-bondable fiber of 20～50 weight %, and preferably contain 30～95 weight %, especially preferably contain the described crimpiness fiber of 50～95 weight %.And, both ratios (crimpiness fiber/hot-melt-bondable fiber, weight ratio) preferably 0.3～20, especially preferably 0.8～5.Again, the amount of crimpiness fiber comprises the amount of fiber that has curled and the fiber that does not curl.
In addition, in second fibrous layer, preferably contain for example identical or different heat fusing fiber of the hot melt property fiber with in first fibrous layer about 40～100 weight %.And, in second fibrous layer, can contain the crimpiness fiber of some amounts (for example 5～20 weight %).
Each alar part 16 in the present embodiment has two different zones 18,19 of retractility.In these two zones, form partly respectively by first fibrous layer 2 and second fibrous layer 3 carry out heat fusing bonding and on thickness direction incorporate heat fusing bonding part 4, these two zones 18,19 have different described retractilities owing to the formation pattern of the described heat fusing bonding part 4 that forms is different on this two zone.
That is, in each alar part 16, form the high zone (hereinafter, also being referred to as high stretching region) 18 of retractility and (hereinafter, also be referred to as low flexible zone) than the low zone of these zone 18 retractilities 19.This stretching region 18 is to form on the part of the close base end part of each alar part 16, and low flexible zone 19 is to form to tip portion at the middle body from the direction that extends out of each alar part 16.Here, near part, middle body and the tip portion of cardinal extremity be with the bearing of trend of alar part 16 (with the width of sanitary towel in the same way) length be divided into three equal parts and three zones distinguishing.
In each alar part 16 of the present embodiment, by making the gross area of heat fusing bonding part 4 of per unit area of the high stretching region 18 of total area ratio of heat fusing bonding part 4 of per unit area in low flexible zone 19 big, then the extension in low flexible zone 19 is than the extension reduction of high stretching region 18.Here, the gross area of the heat fusing bonding part 4 of per unit area is by trying to achieve divided by each regional area by the total area of each regional heat fusing bonding part 4 that calculates.
More particularly, respectively in two above-mentioned zones 18, forming plan view in a large number dispersedly with staggered (plover shape) in 19 is heat fusing bonding part 4 circular and that size is identical, but in two zones because the interval difference of adjacent heat fusing bonding part, so the gross area of the heat fusing bonding part 4 of the per unit area in two zones is different.
Again, the expression of so-called " forming the pattern difference " comprises that also the shape of each heat fusing bonding part is identical, only is the different situation in interval of heat fusing bonding part.
From guaranteeing to form the viewpoint in the high zone of low zone of retractility and retractility, in alar part, the gross area of the heat fusing bonding part 4 of the per unit area in low flexible zone 19 and the ratio of the gross area of the heat fusing bonding part 4 of the per unit area of high stretching region 18 (the former/latter) preferably 0.5～15, particularly 1.2～15, be more preferably 1.5～10.
Above-mentioned two zones 18,19 all have retractility.That is to say, in low flexible zone 19, also can be formed on the heat fusing bonding part 4 that makes this zone 19 can not get retractility to a great extent, but in this case, this zone becomes really up to the mark and diminishes the advantage of using non-woven fabrics.
Again, the position of second fibrous layer 3 in high stretching region 18 beyond heat fusing bonding part 4 side in the above forms the protrusion 5 of convex, and the position of second fibrous layer 3 beyond heat fusing bonding part 4 that should low flexible zone 19 form the protrusion 5 highly lower than the protrusion 5 of high stretching region 18 '.By having protrusion 5,5 ' and obtain good contact skin sensation.
As shown in Figure 4, the sanitary towel 10 of the present embodiment, the edge fold of alar part 16 along the medicated underpants lower crotch is fixed on the outer surface of medicated underpants, but because this alar part 16 is to be formed by above-mentioned non-woven fabrics 1 with retractility, so sanitary towel can prevent that to the suitable property raising of the subsides of wearer generation from can cause the gap of leak of liquid.
That is to say that alar part has Telescopic, the not special consciousness of wearer ground is upheld alar part 16 and be pasted on the medicated underpants to width, so in absorbent main body 11, have alar part to apply to the outside power of width, is difficult to wrinkling thus.In addition, the alar part itself with spring function also has the conformal effect of the form of the absorbent main body kept.By these two effects, obtain being difficult to the suitable sexual function of corrugated subsides.
And, usually in sanitary towel, by the various distortion of fixing cause crooked to medicated underpants or causing by the action of wearer, particularly in having the sanitary towel of alar part, this distortion produces consumingly at alar part, becomes to paste suitable property reduction, produces the reason of surperficial fold etc.But in the sanitary towel 10 of the present embodiment, in the part near the base end part of alar part 16, flexible by on the length direction (identical with the length direction of sanitary towel) of absorbent main body 11 can relax this distortion.
Again, constitute the non-woven fabrics of each alar part 16 because improved intensity by the heat fusing bonding part, so can not carry out reinforcement such as lamination with resin molding, even also can be fully or keep the fibre morphology of crimpiness fiber to a certain extent, so be possible take into account the flexibility of non-woven fabrics and intensity in melt bonded portion.
In addition, because alar part is to be made of non-woven fabrics 1, so produce sound can prevent to dress sanitary towel the time and/or in sanitary towel dresses.
In the alar part 16 of the present embodiment, because formed the low low flexible zone 19 of retractility, thus can easily keep alar part by hang down flexible regional 19 parts of controlling during as wearing, and the operability of alar part is good.
In the sanitary towel 16 of the present embodiment, as shown in Figure 2, low flexible zone 19 comprises the position that is provided with described adhesion layer 17.Be somebody's turn to do low flexible zone 19 because the gross area of the per unit area of heat fusing bonding part 4 is big, so the tack of the binding agent of formation adhesion layer 17 is good, and by suppressing to be impregnated into the use amount that also can reduce binding agent in the fibrous layer.In addition, because the retractility in low flexible zone 19 is low, so the stability maintenance of the 16 pairs of medicated underpants of alar part that produced by adhesion layer 17 is good.Again, as shown in Figure 2, adhesion layer 17 preferably has the part over half that accounts for its area and exists in low flexible zone 19.
In addition, because alar part 16 is made of non-woven fabrics, for example, then on the length direction of sanitary towel, extension is arranged, and also can form the alar part 16 that can suppress the horizontal extension of sanitary towel by using the non-woven fabrics of fiber along the length direction orientation of sanitary towel.
By such formation, corresponding to by dress the distortion (acting on the shearing force of napkin width direction sidepiece) crooked or that cause by action of the sanitary towel cause to medicated underpants, alar part can stretch in the longitudinal direction, and can abirritation in alar part (sanitary towel's sidepiece) and the various distortion that produce, simultaneously when being fixed to alar part on the medicated underpants, can suppress to stretch, so operability is splendid.
For the formation material of the sanitary towel of first embodiment, before surficial sheets 13, absorber 14, back-sheet 15 and the binding agent that forms adhesion layer 17 can use respectively at sanitary napkin, lose the various well known materials of using in the absorbing products such as flap pad.Absorbed layer 12 can integrally form so that do not distinguish surficial sheets 13 and absorber 14.
Below, first other embodiment of inventing is described.In the following description, the different point of the sanitary towel 10 of explanation and first embodiment only, and omission is to the explanation of identical point.The point that does not wherein have special instruction, the then suitable explanation of adopting above-mentioned first embodiment.
In the sanitary napkin of second embodiment, as shown in Figure 5, alar part 16 form with staggered (plover shape) form dispersedly in a large number the zone 18 of heat fusing bonding part 44 that plan view be a circle and heat fusing bonding part 4 that a plurality of plan view of formation abreast is a linearity ' zone 19 '.Thus, this zone 19 ' per unit area heat fusing bonding part 4 ' the gross area of heat fusing bonding part 4 of per unit area in total area ratio zone 18 big, the low zone of retractility, zone 19 ' become then than zone 18.This heat fusing bonding part 4 ' shape that is in line on the solid periodic draw direction of alar part, because be not vulnerable to tensile influence, operability is better.
In the sanitary napkin 10A of the 3rd embodiment, as shown in Figure 6, constitute both wing portions 16,16 non-woven fabrics is made of the two end portions of a non-woven fabrics 1A of the part of the skin contact P with absorbent main body of forming 11, in the part of the formation skin contact P of this non-woven fabrics 1A, also form same heat fusing bonding part and protrusion (figure slightly) in the high stretching region 18 with first embodiment.Form heat fusing bonding part and the such formation of protrusion by part, be difficult to occur residual liquid from the teeth outwards, can obtain contact skin and feel good sanitary napkin at the skin contact P of non-woven fabrics 1A.
In the sanitary napkin 10B of the 4th embodiment, as shown in Figure 7, the non-woven fabrics that constitutes each alar part 16 is made of first fibrous layer 2 and second fibrous layer 3, constitute second fibrous layer 3,3 of both wing portions by a continuous sheet 2 of the part of the skin contact P with absorbent main body of forming 11 ' two end portions constitute.First fibrous layer that constitutes the lower surface of each alar part 16 is fixed to an end both sides of the edge portion of absorbent main body 11 respectively, the part that extends out from this each lateral edge portion and continuous sheet 2 ' an end parts heat fusing bonding.
In the sanitary napkin 10C of the 5th embodiment, as shown in Figure 8, constitute both wing portions 16,16 non-woven fabrics is made of the two end portions of a non-woven fabrics 1B who has absorbent main body of crossing 11 and engage with the surface of back-sheet 115 sides of this absorbent main body 11, carrying out in the engaging portion with the surface of back-sheet 15 sides of this absorbent main body 11, forming same heat fusing bonding part and protrusion (figure slightly) in the high stretching region 18 with first embodiment.
The 10C of sanitary towel of the 5th embodiment is because give elastic recovery for absorbent main body 11 by described protrusion, so resiliency is good.
Again, the 4th with each sanitary towel of the 5th embodiment in the sanitary towel 10 of alar part 16 and first embodiment in alar part 16 have identical in fact structure.Alar part 16 in the sanitary towel of the 3rd embodiment has identical structure with alar part 16 in the sanitary towel 10 of first embodiment except the non-woven fabrics by monolayer constitutes.
In the sanitary napkin 1D of the 6th embodiment, as shown in Figure 9, have a pair of alar part 16 same at the length direction front part of absorbent main body 11 with the sanitary towel 10 of first embodiment, have simultaneously a pair of rear portion aileron portion, and the alar part 16 of length direction same side links together with the rear portion foreign side of aileron portion 21 in the both sides of the edge of absorbent main body 11 in zone from the length direction central part of absorbent main body 11 to the back quadrate part.A pair of rear portion aileron portion 21 is fixed on the inner surface of medicated underpants by adhesion layer.
Sanitary napkin with alar part and rear portion aileron portion is known, but existingly be, the formation material of alar part or rear portion aileron portion is to be laminated to by the resin molding of retractility difference or with non-woven fabrics etc. to form on the described resin molding, so, be difficult to until alar part not being connected in the foreign side of the both sides of the edge of absorbent main body portion with rear portion aileron portion because the warpage direction of alar part and rear portion aileron portion is opposite relation.
The sanitary napkin 10D of the 6th embodiment is by forming alar part 16 and rear portion aileron portion 21 with the same non-woven fabrics of the alar part 16 of first embodiment, so be possible to couple together in the longitudinal direction in the foreign side of the both sides of the edge of absorbent main body 11 one.The 10D of sanitary towel according to the 6th embodiment of formation like this can make the wide scope of the lateral edges of medicated underpants lower crotch be coated really and stably, and can more positively prevent to cause that by menses etc. medicated underpants pollutes.Again, the alar part 16 of the 10D of sanitary towel of the 6th embodiment and rear portion aileron portion 21 separately in, form retractility high zone 18,21 and the retractility low zones 19,22 same with the high stretching region 18 of first embodiment and low flexible zone 19.On the single surface in zone 19,22, form fixing respectively with adhesion layer (figure slightly).
First invention is not limited to above-mentioned each embodiment, can carry out various changes in the scope of the purport that does not break away from first invention.
For example, different and when forming different regional of retractility at the gross area of the heat fusing bonding part of per unit area, as described in first embodiment, replace interval (density) diverse ways that makes the heat fusing bonding part with high zone of retractility and the low zone of retractility, also can use the method that varies in size of the heat fusing bonding part that is provided with in the zone, also can be also with two kinds of methods.
Again, shown in second embodiment, form a large amount of zone of heat fusing bonding part and zones that wire ground forms the heat fusing bonding part of forming dispersedly, in the different occasion of the retractility that makes two zones, each shape of a large amount of heat fusing bonding parts that form dispersedly is except circle, also can use ellipse, triangle, prismatic, rectangle, arbitrary shapes such as star, and each shape of the heat fusing bonding part that wire ground forms can be respectively a continuous wave, non-linear shapes such as zigzag also can make the non-parallel shape of the heat fusing bonding part ground of a plurality of wire form or form clathrate.
In addition, the non-woven fabrics that constitutes each alar part can be the non-woven fabrics of monolayer.At this moment, from the viewpoint of intensity and contact skin sensation, preferably, the containing ratio of the hot crimpiness fiber in this non-woven fabrics is 50～95 weight %, and the containing ratio of hot-melt-bondable fiber is 5～50 weight %.
And the non-woven fabrics that constitutes each alar part can be the fibrous layer that comprises more than 3 layers.For example, on in the non-woven fabrics that first embodiment is used and the surface first fibrous layer laminated second fibrolaminar surface opposite side, lamination is by the 3rd fibrous layer that constitutes with the identical or different material of second fibrous layer, and these fibrous layers can be integrated on thickness direction by the heat fusing bonding part of part.In addition, can also form the different zone more than three of retractility at alar part.
As previously discussed, the absorbing products of first invention comprise have full intensity, softish and prevent sonorific retractility alar part, and paste the operability of suitable property, alar part and/or good to the stability maintenance of medicated underpants etc.
Below, describe based on the second invention embodiment preferred with reference to accompanying drawing.
As shown in figure 10, the sanitary napkin 10E of first embodiment as second invention comprises: in fact vertically long absorbent main body 11 and a pair of alar part 16 that extends out from the both sides of the edge portion of the length direction of this absorbent main body 11.
About the sanitary napkin 10E of the present embodiment, the difference on main explanation constitutes with above-mentioned sanitary napkin 10 uses identical symbol to identical formation, omits its detailed explanation.
Each alar part 16 of sanitary napkin 10E also with above-mentioned sanitary napkin 10 similarly, comprise the non-woven fabrics 1 that contains first fibrous layer 2 and second fibrous layer 3, with first and second fibrous layers, 2,3 mutual laminated states heat fusing bonding (with reference to Figure 12) partly.The crimpiness fiber that first fibrous layer 2 contains curling crimpiness fiber and curls, second fibrous layer 3 do not contain this crimpiness fiber or to contain this crimpiness fiber than containing ratio lower in first fibrous layer.
First fibrous layer 2 is with the skin contact of both wing portions 16 and absorbent main body 11 slightly abreast under the state of horizontal spreading, form with the surface of back-sheet 15 sides of this absorbent main body 11 towards the surface of identical direction (below, also be referred to as lower surface), and second fibrous layer 3 is similarly under the state that makes both wing portions 16 horizontal spreadings, form with the skin contact of absorbent main body 11 towards the surface of same side (below, also be referred to as upper surface).Again, in second fibrous layer 3, do not contain the crimpiness fiber, but from making the fixedly easiness and the good viewpoint of stability maintenance of male part 117, preferably, prevent the second fibrolaminar weakened that the upper surface of alar part 16 forms.
In alar part 16, first fibrous layer 2 and second fibrous layer 3 are bonding and be formed on incorporate heat fusing bonding part 4 on the thickness direction partly by heat fusing.
As shown in figure 11, heat fusing bonding part 4 spreads all over the whole zone of each alar part 16 and forms in a large number dispersedly.
From the fastening easiness of the abundant intensity that obtains alar part, male part with fasten the viewpoint of the flexibility of stability, alar part, the gross area of the heat fusing bonding part 4 of the per unit area of each alar part 16 preferably 10～60%, especially preferably 20～50%.
As shown in figure 13, when the 10E of this sanitary towel dresses, a pair of described alar part 16,16 can a part separately can overlap at least, the lower surface of one side's alar part 16a (single face) is gone up the male part 117 of the mechanical fastener of configuration, and the upper surface of the opposing party's alar part 16b (single face) the described male part 117 that when both wing portions 16,16 overlaps, can directly be fastened.
Here, so-called " mechanical fastener " be meant, has the matrix sheet material of female part and have the known fixed body that the convex sheet material of the male part that can fasten with this female part constitutes.So-called " male part of mechanical fastener " is meant this male part.Above-mentioned convex sheet material is not restricted especially, can use hook-type, mushroom-shaped, anchor shape etc. generally well-known those.
As shown in figure 12, the male part 117 of the 10E of sanitary towel of the present embodiment is configured to: by means of binding agent or by heat fusing adhesive bonding methods such as heat-sealing, ultrasonic sealing, high frequency waves sealings and on the surface with first fibrous layer, 2 sides of the convex sheet material 117 of mechanical fastener ' a be fixed on side's alar part 16a.The surface of second fibrous layer, 3 sides of the opposing party's alar part 16b forms owing to passing through second fibrous layer 3, thereby mechanically fastens male part 117.
The position of second fibrous layer 3 beyond heat fusing bonding part 4 forms protruding protrusion in upper surface side, shown in male part 117 particularly the fiber that constitutes protrusion 5 is demonstrated good fastening.In addition, form protrusion 5, can obtain good contact skin sensation by upper surface at alar part.Again, the inside of protrusion 5 is filled up with the second fibrolaminar formation fiber, but also can form the protrusion 5 of interior void.
As shown in figure 13, the 10E of sanitary towel of the present embodiment is with the edge part warpage of alar part 16 along lower crotch (crotch part) S of medicated underpants, outer surface side at this medicated underpants, thereby the male part 117 of mechanical fastener that is provided in a side alar part 16a is directly fastened on the non-woven fabrics of the alar part 16b that constitutes the opposing party fixingly, dress thus and be fixed on the medicated underpants and use.
According to the 10E of sanitary towel of the present embodiment, alar part 16 is because comprise above-mentioned non-woven fabrics with retractility, so sanitary towel can prevent that to the suitable property raising of the subsides of wearer generation from can cause the gap of leak of liquid.
That is to say that alar part has Telescopic, wearer is not pasted to alar part 16 especially consciously on the medicated underpants and makes alar part 16 uphold to width, so in absorbability body 11, apply the outside power of width by alar part, is difficult to wrinkling thus.And the alar part itself with spring function has the conformal effect of the form of the absorbent main body kept.By these two kinds of effects, can obtain subsides and fit function and be difficult to wrinkling.
And, usually in sanitary towel, by fixedly cause to medicated underpants crooked or the various distortion that cause by the action of wearer, particularly in having the sanitary towel of alar part, this distortion produces consumingly at alar part, becomes to paste suitable property reduction, produces the reason of surperficial fold etc.But in the 10E of sanitary towel of the present embodiment, flexible in part by length direction (identical) with the length direction of sanitary towel in absorbent main body 11 near the base end part of alar part 16, can relax this distortion.
Again, constitute the non-woven fabrics of each alar part 16 because improved intensity by the heat fusing bonding part, so can not carry out carrying out reinforcement such as lamination with resin molding, even also can be fully or keep the fibre morphology of crimpiness fiber to a certain extent, so be possible take into account the flexibility of non-woven fabrics and intensity in melt bonded portion.
In addition, because alar part is to comprise non-woven fabrics 1, so produce sound can prevent to dress sanitary towel the time and/or in sanitary towel dresses.
Again, the alar part 16 of the present embodiment has the function that corrigendum attaches inadequate balance because have retractility.
That is to say do not have binding agent, be bonded with each other together between the alar part, so when alar part applies uneven power, can guide to suitable state naturally at alar part.Just, have the alar part of spring function, causing special effective function by integrally relaxing the power that produces at alar part, the left and right sides balance when adjusting the alar part attaching.Not only when described alar part attaches, even and because during the equilibrium of forces destruction of action about making, the balance about also can obtaining by incorporate alar part.
In addition, at both wing portions 16, do not form bonding part in 16, the alar part 16b that the male part 117 that only makes a side alar part 16a go up be provided with is fastened the opposing party and can dressing is fixed on the medicated underpants, so can be not alar part 16 can be bonded to absorbent main body 11 or successfully dress, and also can easily change physically.In addition, the peeling paper that alar part is used is unnecessary, can pack by simple packaged form.The 10E of sanitary towel is usually to pack the state that is fastened between the both wing portions by described male part 117.
For the formation material of the 10E of sanitary towel of the present embodiment, before the male part 117 of surficial sheets 13, absorber 14, back-sheet 15 and mechanical fastener can be used respectively at sanitary napkin, lose the various well known materials of using in the absorbing products such as flap pad.Absorbed layer 12 can integrally form so that do not distinguish surficial sheets 12 and absorber 14.
Below, second other embodiment of inventing is described.In the following description, the point different with the 10E of sanitary towel of first embodiment only is described, and omits explanation identical point.The point that does not wherein have special instruction, the then suitable explanation of adopting above-mentioned first embodiment.
In the sanitary napkin 10F of second embodiment of second invention, the length that extends out from the absorbent main body 11 of both wing portions 16,16 is different with the 10E of sanitary towel of first embodiment.That is to say, the both wing portions 16,16 of the sanitary towel of second embodiment under situation about all not upholding, as shown in figure 14, the alar part 16b that the male part 117 that is arranged on a side alar part 16a can not be overlapped the opposing party.But, by make both wing portions 16,16 either party upholds at least, on the described the opposing party's alar part 16b that male part 117 can be fastened.It is almost identical with the state shown in Figure 13 that the 10F of sanitary towel of second embodiment is dressed the state that is fixed to medicated underpants.
According to the 10F of sanitary towel of second embodiment, because have formation like this, the contractility effect at the width of alar part makes absorbent main body become convex form by this power, can improve and paste suitable property.
In sanitary napkin 10G as second the 3rd embodiment of inventing, as shown in figure 15, constitute both wing portions 16,16 non-woven fabrics is made of the two end portions of a non-woven fabrics 1A of the part of the skin contact P with absorbent main body of forming 11, in the part of the formation skin contact P of this non-woven fabrics 1A, form same heat fusing bonding part and protrusion (figure slightly) in the high stretching region 18 with first embodiment of second invention.Form heat fusing bonding part and the such formation of protrusion by part, be not prone to residual liquid from the teeth outwards, can obtain contact skin and feel good sanitary napkin at the skin contact P of non-woven fabrics 1A.
In sanitary napkin 10H as second the 4th embodiment of inventing, as shown in figure 16, the non-woven fabrics of each alar part 16 comprises first fibrous layer 2 and second fibrous layer 3, constitute second fibrous layer 3,3 of both wing portions by a continuous sheet 2 of the part of the skin contact P with absorbent main body of forming 11 ' two end portions constitute.First fibrous layer that constitutes the lower surface of each alar part 16 is fixed to an end both sides of the edge portion of absorbent main body 11 respectively, the part that extends out from this each lateral edge portion and continuous sheet 2 ' an end parts heat fusing bonding.
In sanitary napkin 10I as second the 5th embodiment of inventing, as shown in figure 17, constitute both wing portions 16,16 non-woven fabrics is made of the two end portions of a non-woven fabrics 1B who has absorbent main body of crossing 11 and engage with the surface of back-sheet 15 sides of this absorbent main body 11, carrying out in the engaging portion with the surface of back-sheet 15 sides of this absorbent main body 11, forming same heat fusing bonding part and protrusion (figure slightly) in the both wing portions with first embodiment.
The 10I of sanitary towel of the 5th embodiment is because give elastic recovery for absorbent main body 11 by described protrusion, so resiliency is good.
Again, the 4th with each sanitary towel of the 5th embodiment in alar part 16 in the sanitary towel 10 of alar part 16 and first embodiment of 10H, 10I have identical in fact structure.Alar part 16 among the 10G of sanitary towel of the 3rd embodiment has identical structure with alar part 16 in the sanitary towel 10 of first embodiment except the non-woven fabrics that comprises monolayer.
Second invention is not limited to above-mentioned each embodiment, can carry out various changes in the scope of the purport that does not break away from second invention.
For example, the non-woven fabrics that constitutes alar part 16 can use the pattern shown in Figure 18 (a) and Figure 18 (b) to form heat fusing bonding part 4.And the shape of each heat fusing bonding part when a plurality of heat fusing bonding part of alar part decentralized configuration in plan view except circle, also can use arbitrary shapes such as ellipse, triangle, prismatic, rectangle, star.In addition, the shape of whole or a part of heat fusing bonding part can be formed non-linear shape or clathrates such as linearity or continuous wave, zigzag.
In addition, the non-woven fabrics that constitutes each alar part can be the non-woven fabrics of monolayer.At this moment, from the viewpoint of intensity and contact skin sensation, preferably, the containing ratio of the hot crimpiness fiber in this non-woven fabrics is 50～95 weight %, and the containing ratio of hot-melt-bondable fiber is 5～50 weight %.
And the non-woven fabrics that constitutes each alar part can be the fibrous layer that comprises more than 3 layers.For example, on in the non-woven fabrics that first embodiment is used and the surface first fibrous layer laminated second fibrolaminar surface opposite side, lamination is by the 3rd fibrous layer that constitutes with the identical or different material of second fibrous layer, and these fibrous layers can be integrated on thickness direction by the heat fusing bonding part of part.In addition, the number at left and right sides alar part formation non-woven fabrics fiber layer can be different.
And then, also male part 117 can be provided on a side the described upper surface of alar part, make this male part 117 be fastened on the described lower surface of the opposing party's alar part.
As mentioned above, the absorbing products of second invention comprise have full intensity, softish and prevent sonorific retractility alar part, and have when dressing, correct the function that it installs inadequate balance, it is good and can successfully dress medicated underpants to paste suitable property.
Again, the present invention's's (first, second invention) absorbing products also can be underpants, mistake flap pad etc. except being the sanitary napkin.In addition, elliptical declaratives in the above-mentioned embodiment and only be the condition that an embodiment has can be suitable for other embodiment respectively, and, the condition in each embodiment, can be between embodiment the phase double replacement.
Claims (2)
1, a kind of absorbing products, it has: the in fact vertically long absorbent main body that comprises the back layer of the absorbed layer of liquid retainability and liquid impermeability, the a pair of alar part that extends out with both sides of the edge portion from this absorbent main body, wherein said each alar part is formed by the non-woven fabrics that contains curling crimpiness fiber and hot-melt-bondable fiber and have a retractility, this each alar part has at least two zones that retractility is different, on these two zones, form the heat fusing bonding part respectively partly, and the different formation pattern of these two zones by described heat fusing bonding part has different retractilities;
The gross area of the heat fusing bonding part of the per unit area in the zone that retractility is high among these two zones of the total area ratio of the heat fusing bonding part of the per unit area in the zone that retractility is low among wherein said two zones is big;
The high zone of retractility is to form on the part of the close base end part of the direction that extends out of described each alar part among described two zones, and the low zone of retractility is that middle body in the direction that extends out of this each alar part forms to tip portion among these two zones;
Described each alar part is provided with the adhesion layer that fixing alar part is used, and the low zone of retractility comprises the position that is provided with described adhesion layer among described two zones;
Described alar part is to form by the both sides of the edge portion that will be fixed on described absorbent main body as the described non-woven fabrics of the other parts different with the formation parts of absorbent main body.
2, absorbing products according to claim 1, the non-woven fabrics that wherein constitutes described each alar part is by first fibrous layer that comprises described crimpiness fiber and described hot-melt-bondable fiber and does not contain described crimpiness fiber or constitute with second fibrous layer that contains this crimpiness fiber than containing ratio lower in first fibrous layer that this first and second fibrous layer is integrated on thickness direction by described heat fusing bonding part.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002323046 | 2002-11-06 | ||
| JP2002323045A JP3830444B2 (en) | 2002-11-06 | 2002-11-06 | Absorbent articles |
| JP2002323046A JP3818955B2 (en) | 2002-11-06 | 2002-11-06 | Absorbent articles |
| JP2002323045 | 2002-11-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1498608A CN1498608A (en) | 2004-05-26 |
| CN1322847C true CN1322847C (en) | 2007-06-27 |
Family
ID=34277083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200310102786XA Expired - Fee Related CN1322847C (en) | 2002-11-06 | 2003-10-24 | Absorbent article |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1322847C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8193267B2 (en) | 2003-12-05 | 2012-06-05 | 3M Innovative Properties Company | Polymer compositions with bioactive agent, medical articles, and methods |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4502868B2 (en) * | 2005-04-13 | 2010-07-14 | 花王株式会社 | Absorbent articles |
| JP5901440B2 (en) * | 2012-06-19 | 2016-04-13 | ユニ・チャーム株式会社 | Disposable wearing articles |
| JP5574557B1 (en) * | 2014-05-27 | 2014-08-20 | ユニ・チャーム株式会社 | Wearing article |
| CN110179587A (en) * | 2019-05-31 | 2019-08-30 | 重庆百亚卫生用品股份有限公司 | Adjustable sanitary napkin |
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| US4608047A (en) * | 1985-05-28 | 1986-08-26 | Personal Products Company | Sanitary napkin attachment means |
| CN1285725A (en) * | 1997-12-31 | 2001-02-28 | 金伯利-克拉克环球有限公司 | Personal care article having zones with different resistance-to-strech |
| US6358234B1 (en) * | 1990-01-23 | 2002-03-19 | The Procter & Gamble Company | Absorbent article having deformed hinge and zones of extensibility |
| CN1348026A (en) * | 2000-10-12 | 2002-05-08 | 花王株式会社 | Bulky sheet material with three-dimensional raised parts |
| US6387084B1 (en) * | 1992-09-30 | 2002-05-14 | Kimberly-Clark Worldwide, Inc. | Sanitary napkin with garment attachment panels |
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2003
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4608047A (en) * | 1985-05-28 | 1986-08-26 | Personal Products Company | Sanitary napkin attachment means |
| US6358234B1 (en) * | 1990-01-23 | 2002-03-19 | The Procter & Gamble Company | Absorbent article having deformed hinge and zones of extensibility |
| US6387084B1 (en) * | 1992-09-30 | 2002-05-14 | Kimberly-Clark Worldwide, Inc. | Sanitary napkin with garment attachment panels |
| CN1285725A (en) * | 1997-12-31 | 2001-02-28 | 金伯利-克拉克环球有限公司 | Personal care article having zones with different resistance-to-strech |
| CN1348026A (en) * | 2000-10-12 | 2002-05-08 | 花王株式会社 | Bulky sheet material with three-dimensional raised parts |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8193267B2 (en) | 2003-12-05 | 2012-06-05 | 3M Innovative Properties Company | Polymer compositions with bioactive agent, medical articles, and methods |
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|---|---|
| CN1498608A (en) | 2004-05-26 |
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