CN1204864C

CN1204864C - Disposable absorbent article

Info

Publication number: CN1204864C
Application number: CN99806741.5A
Authority: CN
Inventors: 格雷戈里·阿什顿; 克雷格·A·霍金斯; 弗雷德里克·M·兰顿; 福田英郎; 古川文人
Original assignee: Procter and Gamble Ltd
Current assignee: Procter and Gamble Ltd; Procter and Gamble Co
Priority date: 1998-05-28
Filing date: 1999-05-24
Publication date: 2005-06-08
Anticipated expiration: 2019-05-24
Also published as: CN1312698A; WO1999060967A1; AU7800998A

Abstract

A disposable garment having a side elastomeric material and a waist elastomeric material is disclosed. The disposable garment has a front region, a back region, a crotch region between the front region and the back region. The disposable garment comprises a chassis, a waist elastomeric material, a side elastomeric material, and seams. The chassis has a topsheet, a backsheet joined with the topsheet, and an absorbent core interposed between the topsheet and the backsheet. The chassis has a central panel having a waist edge and side edges, an ear panel having a waist edge, and a waistband panel in the front region and the back region. The ear panel extends laterally outwardly from each side edge of the central panel. The waistband panel extends longitudinally outwardly from the waist edge of the central panel and the waist edge of the ear panel. The waist elastomeric material is joined to and extending continuously along the waistband panels in the front region and the back region so as to form a continuous extensible waistband in the front region and the back region. The side elastomeric material is joined to the ear panel so as to form extensible ears. The side elastomeric material and the waist elastomeric material are separate elements and are disposed so as not to overlap to each other. The seams join each ear panel to a corresponding portion in the ear panel so as to form two leg openings and a waist opening such that the extensible waistbands form a continuous extensible waist feature.

Description

Disposable absorbent article

Invention field

The present invention relates to disposable clothes article, the example of this kind disposable clothes article comprises the disposable underpants that disposable pants, disposable diaper (comprising diaper and training pants) and menstrual period use.

Background of invention

The disposable medicated clothing that baby and other incontinent persons wear similar diaper absorbs and stores urine and other slop.The fixed absorbent garments in side (as: training pants and diaper) is very general, for storing body excretions and being fit to many build and sizes, these medicated clothings must be fitted with wearer's waist and shank well, can not come off from the wearing position of health, sagging or landing, and can with the bigger wearer's of the bodily form body fit, can not be owing to tension its skin being produced stimulates.

Many pull-on type medicated clothings use traditional elastomeric element at large, and these elastomeric elements are fixed on waist leg opening place with the state of elastic shrinkage.For example, known to " gasbag-type " medicated underpants be exactly to use elastic component to produce contraction in the specific region of product, and all the other materials are tending towards loose sagging.The example of this kind pull-on type medicated clothing is disclosed on 5,171,239 and 1986 years JIUYUE of December in 1992 laid-open U.S. Patents on the 15th laid-open U.S. Patents 4,610,681 on the 9th.Because these medicated clothings adapt to the wearer of different size by the expansion of degree of tightness mouth, so its is fit to waist, the lower limb size of certain limit.But the elastomeric element that can be fit to different size has limited degree of drawing, so this size range also is conditional.In addition, the narrow elastic webbing at waist leg opening place will make adhesive force concentrate on the narrow zone of wearer's body, thereby increase the incidence rate that produces impression on wearer's skin.

Another kind of pull-on type medicated clothing has used waist elastic and sidepiece elastic component, the example of this class medicated clothing is disclosed in laid-open U.S. Patents 4 on July 10 nineteen ninety, 940,464, JIUYUE in 1993 laid-open U.S. Patents 5 on the 21st, 246,433, on open text EP 0 526 868 A1 of laid-open U.S. Patents disclosed european patent application on February 10th, 5,591,155 and 1993 on January 7th, 1997.This class medicated clothing has the sidepiece elastic component and along the waist elastic of the subregion elastic extension of waist opening in its left and right sides.The sidepiece elastic component extends between waist opening and leg opening, and the waist elastic only part of the Attacking Midfielder between the sidepiece elastic component of the left and right sides and low back is extended.Sidepiece elastic component and waist elastic are extended discontinuously.Therefore, medicated clothing is not continuously elongated along waist, and the extensibility that centers on waist opening is restricted.In addition, because the sidepiece elastic component has the single elastomeric material that extends from the waist opening to the leg opening, therefore, between waist opening and leg opening, the sidepiece elastic component only has the extensibility of homogeneous.This make the design good form close-fitting medicated clothing the time do not have a lot of motilities, for example: it be not easy to be designed to along leg opening with different extensibilities is arranged along waist opening.

The example of other the pull-on type medicated clothing with waist elastic and sidepiece elastic component is disclosed in open text EP 0 547 497 A2 of european patent application of the United States Patent (USP) announcement on June 23rd, 5,545,158 and 1993 of announcing on August 13rd, 1996.Be disclosed in United States Patent (USP) 5,545, the medicated clothing in 158 has a pair of elasticity sidepiece and the elastic waist strap that the edge of waist with medicated clothing connects together.The sidepiece of elastic waist strap and elasticity sidepiece are overlapping, and this is the elasticity of not overslaugh elasticity sidepiece basically.But the lap of elasticity sidepiece and elastic waist strap becomes too fat to move and unnecessary, and has limited effective stretching of minimum stretch material.Furtherly, unnecessary tensile force will be attached on the overlay region.In addition, the lap of two elastomeric materials makes that need take bigger power when wearing medicated clothing on one's body the wearer stretches.Be disclosed among the open text 0547497A2 of european patent application medicated clothing be disclosed in United States Patent (USP) 5,454, the medicated clothing on 158 has essentially identical structure, therefore, identical shortcoming is arranged also.The open text 0547497A2 of european patent application also discloses the medicated clothing that all there is a triangular side elastic component a kind of left and right sides.This sidepiece elastic component has reduced the end limit adjacent with waist elastic, but still overlapping with waist elastic.Because the geometry of triangular side elastic component makes the leg opening of medicated clothing and the extensibility of the side between the waist opening significantly reduce, and lowered the easy degree when wearing, strengthened the pressure at side position and reduced the scope of fitting potentially.

Therefore, also there is not a kind of technology to have all advantages of the present invention at present.

Summary of the invention

The present invention relates to a kind of disposable medicated clothing.This medicated clothing has proparea, back zone and the crotch district between proparea, back zone.Described disposable medicated clothing comprises main body, waist elasticity body material, sidepiece elastomeric material and seam.This main body has top flat, and the top flat egative film and the absorbent article core between top flat and egative film that link together.This main body comprises intermediate with waist edge and lateral margin, has the auricle of waist edge and be positioned at the proparea and the waist belt piece of back zone.Auricle laterally stretches outwardly from each lateral margin of intermediate.Waist belt piece longitudinally stretches outwardly from the waist edge of intermediate and the waist edge of auricle.Seam is connected to each auricle on the appropriate section of corresponding auricle, forms two leg openings and a waist opening thus, and extensible thus belt has formed continuous extensible waist spare.Waist elasticity body material is connected on the waist belt piece that is positioned at proparea, back zone and along waist belt piece and stretches, and forms continuous extensible belt thus in proparea and back zone.The sidepiece elastomeric material is connected on the auricle, has formed extensile ear thus.Extensile ear is formed by " zero strain " stretch laminate and sidepiece elastomeric material and waist elasticity body material are parts independently, and is arranged to not overlapping each other.

The invention still further relates to a kind of disposable medicated clothing.Disposable medicated clothing has proparea, back zone and the crotch district between proparea, back zone.This disposable medicated clothing comprises: main body, waist elasticity body material, sidepiece elastomeric material and seam, this seam is connected to the part that disposable medicated clothing is positioned at the proparea on the part that is positioned at the back zone, and forms waist opening and leg opening thus.Medicated clothing has the continuous zone that is formed by waist elasticity body material and sidepiece elastomeric material at least.Zone is extensile in up to the extending range that is at least about 125% percentage of elongation continuously.Zone continuous zone in this extending range has the stretching, extension modulus continuously.Stretching, extension modulus at 125% percentage of elongation place is not more than about 150g/% percentage of elongation.The power that obtains 125% percentage of elongation is not more than 5,000g.

The invention still further relates to a kind of disposable medicated clothing around the dress of wearer's trunk.This medicated clothing has the proparea, back zone, the crotch district between proparea and back zone, waist opening and two leg openings.Disposable medicated clothing comprises extensible district, and this extensible district comprises sidepiece elastomeric material and waist elasticity body material.When this medicated clothing was worn on the standard anthropometric dummy, the contact skin pressure that sidepiece elastomeric material and waist elasticity body material are pressed on the standard anthropometric dummy skin was not more than about 0.75psi.

By reading disclosure file, those skilled in the art will understand these and other feature, style and advantage of the present invention.

Description of drawings

Although the claims after the description are pointed out particularly and the present invention clearly have been described, believe, will help to understand better the present invention below in conjunction with the accompanying drawing description of preferred embodiments.Identical label is used for representing essentially identical parts in the accompanying drawing.Wherein:

Fig. 1 is the perspective view of a preferred embodiment under its common user mode of disposable pull-on formula medicated clothing of the present invention;

To be disposable pull-on formula medicated clothing of the present invention tile, do not shrink, do not make a simplified plan view under the state at it to Fig. 2, and this figure has showed each different piece of this medicated clothing;

Fig. 3 is that the embodiment among Fig. 1 tiles, do not shrink, do not make a simplified plan view under the state at it;

Fig. 4 is the simplification plan view of the embodiment of Fig. 3, and this figure has showed a main body, and this main body includes a top flat, an egative film and is positioned between the two an absorbent article core, has omitted other parts of pull-on type medicated clothing among this figure;

Fig. 5 is the cutaway view of the preferred embodiment cut open along the cutting line 4-4 among Fig. 3;

Fig. 6 is that of Fig. 3 embodiment simplifies plan view, and this figure has showed that this disposable pull-on formula medicated clothing has an extensile auricle and an extensile waist belt piece;

Fig. 7 is the cutaway view of the preferred embodiment cut open along the cutting line 6-6 among Fig. 3;

Fig. 8 is the profile perspective of the elastomeric element of a preferred embodiment;

Fig. 9 is the side view after the local amplification of the elastomeric element among Fig. 5;

Figure 10 shows two continuous circulation figure lines of the hysteresis curve of elastomeric material in the preferred embodiment;

Figure 11 is perspective view part, that amplified of the alternative of elastomeric material;

Figure 12 is the cutaway view of an alternative along cutting line 6-6 intercepting among Fig. 3;

Figure 13 is the front view of embodiment shown in Figure 1;

Figure 14 is the simplified plan view of an alternative with disposable pull-on formula medicated clothing of extensible auricle and extensible belt;

Figure 15 is the simplified plan view of another alternative with disposable pull-on formula medicated clothing of extensible auricle and extensible belt;

Figure 16 is the front view under the assembled configuration of disposable pull-on formula medicated clothing shown in Figure 15;

Figure 17 is the front view of the alternative of disposable pull-on formula medicated clothing assembled configuration shown in Figure 15;

Figure 18 has represented " power-percentage of elongation " curve of the continuous zone of disposable pull-on formula medicated clothing of the present invention;

Figure 19 has represented " stretch modulus-percentage of elongation " curve of obtaining according to " power-percentage of elongation " curve shown in Figure 180;

Figure 20 is a perspective view that is used to measure the standard anthropometric dummy of contact skin pressure;

Figure 21 is the side view of standard anthropometric dummy shown in Figure 20;

Figure 22 is the top view of standard anthropometric dummy shown in Figure 20.

Describe in detail

When quoting any reference material and do not mean that we admit this corresponding prior art and can be directly used in the present invention.

Said herein " pull-on type medicated clothing " is meant a kind of like this articles for use that the confession wear, and it has the waist opening and a pair of leg opening of a qualification, and the wearer can penetrate lower limb leg opening and be pulled upwardly to waist.Said herein " disposable " typically refers to and do not plan washing or store or use (that is, promptly plan to abandon after using once, preferably recyclable utilize, do compost again or available other handled in environmentally friendly way) as this medicated clothing once more after medicated clothing uses." integral body " pull-on type medicated clothing is meant that the pull-on type medicated clothing is partly lumped together the integral body that forms a coordinating and unifying by several separate.But auricle is not an individual components that links together with main body independently, because auricle is one deck at least by central plate that constitutes medicated clothing or main body (being that medicated clothing does not need to resemble auricle independently and the manual additional individual components the main body independently) that form.This pull-on type medicated clothing is " moisture absorption " preferably, to absorb and the various Excretas of store human body.A preferred embodiment of pull-on type medicated clothing of the present invention is the whole disposable absorbent garments-diaper of wearing, shown in 20 among Fig. 1.Said herein " diaper " is meant usually by baby or other incontinent persons dress, in order to the pull-on type medicated clothing of absorption and stores urine and excrement.But should be appreciated that the present invention also is applicable to other pull-on type medicated clothing, for example training pants, incontinent person's underwear, feminien hygiene medicated clothing or underwear etc.Said herein " connection " summarized: by parts directly being adhered to the direct fixed form that is fixed on another parts, and by parts are attached on the intermediate member, intermediate member is attached to again on another parts and with the form of a parts indirect securement on another parts.

According to Fig. 1, Fig. 2 and Fig. 3, diaper 20 has a proparea 26, a back zone 28 and a crotch district 30 between proparea 26 and back zone 28.Diaper 20 also has two centrages, longitudinal centre line 100 and cross central line 110.Said herein " vertically " is meant the straight line in diaper 20 planes, an axle or a direction, it roughly (for example aligns with a vertical plane, almost parallel), when the wearer put on diaper 20, described vertical plane was divided axial wearer's health equally and is left and right two halves." horizontal " and " horizontal side " can exchange herein, refers to the straight line in the diaper plane, an axle or a direction, and it is generally perpendicular to described longitudinal direction (its health with the wearer is divided into the front and back two halves).When wearing, diaper 20 and component materials thereof also have towards wearer's skin towards the health face with towards the relative face of health dorsad of health face.

Fig. 2 is the plane sketch of diaper under its expansion, non-contraction state among Fig. 1.This figure has drawn each different sheets and their relative position." sheet " speech is in order to zone on expression diaper or the moisture-absorbing band or parts (although normally visibly different zone of sheet or parts, sheet may consistent with adjacent sheet in some aspects (function be suitable)) herein.Diaper 20 comprises a crotch district 30 that is made up of a main leaf 2 and pair of leg fin 4; The proparea of forming by 8, waist belt pieces 6 of a central plate (intermediate), auricle 10 and seam sheet 12 26; And the back zone of forming by 9, waist belt pieces 7 of a central plate (intermediate), auricle 11 and seam sheet 13 28.Crotch district 30 is parts on the diaper 20, and zone (other sheet) is just protruding from this part continuously.Although absorbent article core can extend in the intermediate 8 and 9 of diaper usually, absorbent article core normally is placed in the main leaf 2, because Excreta is normally drained at this position.Lower limb fin 4 stretches out along the side 2B of main leaf 2 is substantial transverse, and each lower limb fin 4 has constituted at least a portion of elastic leg members usually.Continuously each horizontal edge 159 of (main leaf 2 and lower limb fin 4) roughly vertically stretches out zone (proparea 26 and back zone 28) usually from crotch district 30.In proparea 26, intermediate 8 (being central plate) vertically stretches out along the horizontal edge 159 in crotch district 30 usually.Intermediate 8 has waist edge 190 and lateral margin 191.Usually each auricle 10 all is that lateral margin 191 along intermediate 8 (being central plate) laterally stretches out, and auricle 10 has waist edge 161 and lateral margin 171.Waist belt piece 6 vertically stretches out along the waist edge 190 of intermediate 8 (being central plate) and the waist edge 161 of auricle 10 usually, and waist belt piece 6 has lateral margin 175.Seam sheet 12 laterally stretches out along the lateral margin 171 of auricle 10 and the lateral margin 175 of waist belt piece 6 usually.In back zone 28, intermediate 9 (being central plate) vertically stretches out along another horizontal edge 159 in crotch district 30 usually, and intermediate 9 has waist edge 192 and lateral margin 193.Usually each auricle 11 all is that lateral margin 193 along intermediate 9 (being central plate) laterally stretches out.Auricle 11 has waist edge 163 and lateral margin 173.Waist belt piece 7 vertically stretches out along the waist edge 192 of intermediate 9 (being central plate) and the waist edge 163 of auricle 11 usually, and waist belt piece 7 has lateral margin 177.Usually each seam sheet 13 all laterally stretches out along the lateral margin 173 of auricle 11 and the lateral margin 177 of waist belt piece 7.Proparea 26 except these sheets, also has waist edge 151, lower limb edge 153 and lateral margin 154.Back zone 28 except these sheets, also has waist edge 155, lower limb edge 156 and lateral margin 157.There is lower limb edge 158 in crotch district 30.

Diaper 20 mainly comprises a main body 41, waist elasticity body material (not showing among Fig. 1,2 and 3), sidepiece elastomeric material (not showing among Fig. 1,2 and 3) and seam 32.Diaper 20 can also have tear-open end tongue 31, and the elastic leg cuff 52 of its position barrier cuff 54 with seam 32 with in containing is relevant.It is extensible that the sidepiece elastomeric material makes at least a portion of auricle 10 and 11, constitutes

extensile ear

46 and 48 thus.It is extensile that waist elasticity body material makes at least a portion of waist belt piece 6 and 7, constitutes successive extensile

waist belt piece

57 and 59 thus.Sidepiece elastomeric material and waist elasticity body material are separate parts and independent the layout, thus diaper 20 vertically on the phase non-overlapping copies.This makes waist and sidepiece elastomeric material that independently effect can be arranged more, thereby makes and can adjust at aspects such as size ductility, pressure.

Extensile ear

46 and 48 and continuous

extensible belt

57 and 59 at least can cross directional stretch.Seam 32 will link together at seam sheet on the proparea 26 12 and seam sheet 13 on back zone 28, so auricle 10 just is associated in auricle 11, thereby form a waist opening 36 and two leg openings 34.In the structure that auricle 10 and auricle 11 connect together, continuous extensile

waist belt piece

57 and 59 has constituted a continuous extensible waist spare 60 around waist opening 36.In addition, a continuous zone 38 extends in proparea 26 and back zone 28.

According to Fig. 3 and Fig. 4, main body 41 comprise an absorbent article core 25 and with some synusia of the cooperative arrangement of absorbent article core 25, such as top flat 24 and the egative film 22 that links to each other with top flat 24.Absorbent article core 25 is placed between top flat 24 and the egative film 22.Main body 41 can also comprise other one or more layers that is provided with absorbent article core 25.Top flat 24 has body-facing surface, and in use, it presses close to wearer's health.Egative film 22 has outward surface, and it is away from wearer's health.Egative film 22 preferably includes block film 68 and one deck nonwoven outer covering piece 23 compositions in one deck.Because main body 41 is divided into proparea 26, back zone 28 and crotch district 30, main body 41 also has foregoing corresponding zone and sheet (for the sake of simplicity, these zones and sheet among the figure have adopted the relevant range label identical with sheet in the diaper with Fig. 2).

The length and width size of the interior block film 68 of top flat 24 and egative film 22 is usually greater than the corresponding size of absorbent article core 25.Top flat 24 and interior block film 68 extend beyond the lateral margin and the ora terminalis of absorbent article core 25 and constitute the periphery of main body 41.Top flat 24 is longitudinal extension between the

waist edge

151 and 155 of diaper 20.Top flat 24 has waist end 24A and sidepiece 24B, and the waist end 24A of top flat 24 (being end extension 24A) extends into the waist belt piece 6 of diaper 20 and a part of 7.Interior block film 68 has waist end 68A and sidepiece 68B.Interior block film 68 is vertically slightly short, laterally slightly wide than top flat 24 than top flat 24.Therefore the transverse width of interior block film 68 is inconsistent, has constituted first one 94 at least a portion in crotch district 30 and at least a portion of proparea 26 and back zone 28 second one 96.The transverse width of interior block film 68 reduces gradually towards waist end 68A, and therefore, second one 96 transverse width is less than first one 94 transverse width.Interior block film 68 does not preferably extend into auricle 10 and 11, with effective cross directional stretch length that increases auricle 10 and 11 and the loft that reduces auricle 10 and 11.Equally, interior block film 68 does not extend into waist belt piece 6 and 7 yet, to reduce the loft of waist belt piece 6 and 7.In addition because interior block film 68 does not extend into auricle 10 and 11 and waist belt piece 6 and 7, therefore in block film 68 can not hinder those regional breathability.Although top flat 24, interior block film 68 and absorbent article core 25 can get up with many known structural groupings, but the example of agent structure is found in the United States Patent (USP) 3 that is entitled as " the contractile sidepiece of disposable diaper " of authorizing Kenneth B.Buell on January 14th, 1975 usually, 860,003 and 1992 on JIUYUE was authorized the United States Patent (USP) 5 of people's such as KennethB.Buell exercise question for " absorbent device of the power elastic waist feature of the resilience flexure hinge that band sets in advance " in 29,151,092.

Nonwoven outer covering piece 23 preferably almost covers the Zone Full of diaper 20 outermost portions.Nonwoven outer covering piece 23 can have identical shape with diaper 20 usually.Nonwoven outer covering piece 23 has waist end 23A and sidepiece 23B.Nonwoven outer covering piece 23 also has side extension 23C, has side extension 23D in back zone 28 in proparea 26.The waist end 23A of nonwoven outer covering piece 23 (being end extension 23A) extends into waist belt piece 6 and 7.Side extension 23C and 23D extend into auricle 10 and 11.Perhaps, the shape of the nonwoven outer covering piece 23 of egative film 22 usually can be identical with interior block film 68, the zone of block film 68 in nonwoven outer covering piece 23 only covers like this.Again or, nonwoven outer covering piece 23 can be cancelled, and interior block film 68 can have with the roughly the same shape of diaper 20 and extend into auricle 10 and 11 and waist belt piece 6 and 7.

Absorbent article core 25 can be any hygroscopic element, and it is normally compressible, comfortable, and is non-stimulated to wearer's skin, can absorb and preserve as fluids such as urine and other slops.Absorbent article core 25 can be made into multiple different size and dimension (as rectangle, hourglass shape, "T"-shaped, asymmetric shape etc.), and can adopt the various fluid absorption materials that are generally used for disposable diaper and other absorbent device to make, for example be commonly referred to the pulverizing wood pulp of air felt.Other suitable hygroscopic material comprises: the wrinkle cellulose wadding, comprise altogether the meltblown polymer of (coform), chemicosolidifying, modification or cross-linked cellulosic, comprise the thin paper that thin paper bag and thin paper are stacked, the moisture absorption foam, moisture absorption sponge, superabsorbent polymer, sucting wet gel material, or the combination of the material of any equivalence or material.

The form of the composition of absorbent article core 25 and structure also can be various (for example: absorbent article core 25 can vicissitudinous caliper zones, hydrophilic gradient, superabsorbent gradient or lower average density and lower average quantitatively reception area, or comprise one or more layers, one or more structures).In addition, the size of absorbent article core 25 and moisture absorption capacity can be diversified, so that be fit to from the baby to adult wearer's scope.No matter adopt which kind of form of the composition and structure, the whole moisture absorption capacity of absorbent article core 25 should be consistent with the design load and the purposes of diaper 20.

In a preferred embodiment, absorbent article core 25 is the modified model hourglass shape asymmetric, that ear is arranged on front waist region 26 and back waist region 28.Describing in following patent documentation as the structure of absorbent article core 25 and the example that obtained approval on a large scale and coml success of other: JIUYUE in 1986 was authorized people's such as Weisman the United States Patent (USP) that is entitled as " high-density absorbent structure " 4,610678 on the 9th; Authorized people's such as Weisman the United States Patent (USP) that is entitled as " absorbent device " 4,673,402 on June 16th, 1987 with double-deck core; Decembers in 1989 were authorized the United States Patent (USP) 4,888,231 that is entitled as " absorbent article core with shop bisque " of Angstadt on the 19th; And on May 30th, 1989 authorize people's such as Alemany the United States Patent (USP) 4,834,735 that is entitled as " having hygroscopic piece " than low-density and low quantitative reception area.

As shown in Figure 5, main body 41 can also have a reception/minute cloth wick 84 that is placed on the chemicosolidifying fiber on the absorbent article core 25, constitutes a twin-core system thus.Preferred twin-core system is disclosed in following patent documentation: the United States Patent (USP) 5 that is entitled as " absorbent device that band elastic waist feature and absorbent article core improve " of authorizing people such as Alemany on August 10th, 1993,234, JIUYUE was authorized Young on the 15th in 423 and 1992 years, the United States Patent (USP) 5 that is entitled as " being used for the highly efficient absorbent article that incontinence is handled " of LaVon and Taylor, 147,345.In a preferred embodiment, this reception/minute cloth wick 84 include can obtain from WeyerhaeuserCo. (U.S.), be the chemically treated sclerotic fiber cellulose fiber material of CMC its commercial number.

More preferably, main body 41 also can comprise the reception/distribution layer 82 of one deck between top flat 24 and reception/minute cloth wick 84, as shown in Figure 5.These reception/distribution layer 82 usefulness help reduce the surface moisture tendency of top flat 24.Reception/distribution layer preferably is made of the non-woven material of height protuberance combing, resin-bonding, for example, such as can be from Polymer Grous, Inc., the code name of North America (Landisiville, New Jersey, the U.S.) is the material of FT-6860, this material is to be made by the polyethylene terephthalate fiber of 6 dtexs, and it quantitatively is about 43g/m ²

Top flat 24 is preferably submissive, soft and wearer's skin not do not stimulated.In addition, top flat 24 still can see through liquid, allows the liquid (as urine) to see through its whole thickness at an easy rate.Suitable top flat 24 can be made by many materials, non-woven material for example, and polymeric material is such as hole forming thermoplastic film, apertured plastic films and hydroforming thermoplastic film are arranged; Porous foam; Reticulated polymer foam; Netted thermoplastic film and thermoplastic scrim.Suitable weaving or non-woven material can be by natural fiber (as the wood fiber or cotton fiber), synthetic fibers (for example polymer fiber, such as polyester, polypropylene and polyethylene fibre), or natural and complex synthetic fibers.Top flat 24 is preferably made by hydrophobic basically material, thereby makes wearer's skin and the liquid that passes top flat 24 and be stored in the absorbent article core 25 separate (promptly preventing reverse osmosis).If top flat 24 is made up of hydrophobic material, then preferably be processed into hydrophilicly to the upper surface of major general's top flat 24, like this, liquid will more promptly pass through top flat.This lowers the probability of slop from top flat 24 streams, and is to make liquid be pulled through top flat and absorbed by absorbent article core 25 more.Can handle so that it becomes hydrophilic top flat with surfactant.Top flat 24 is carried out the surface-treated appropriate method to be comprised to material and sprays surfactant and material is immersed in the surfactant.Authorize people's such as Reising the United States Patent (USP) 4 that is entitled as " absorbent device " with multiwalled moisture absorption layer on January 29th, 1991 about this processing and hydrophilic, 988, authorized people such as Reising be entitled as " absorbent device " on January 29th, 344 and 1991 and drink United States Patent (USP) 4 with rapid reception absorbent article core, more detailed discussion is arranged in 988,345.Top flat 24 be preferably in waist belt piece 6 and 7 and diaper on other parts on increase ventilative design/processing.

In a preferred embodiment, top flat 24 is nonwoven web sheets, and this can reduce the tendency of surface moisture, and, after getting wet, can help to make the urine and the user skin that have been absorbed by absorbent article core 25 to separate.A kind of suitable preferred top sheet materials is hot sticky carded web sheet, as Fiberweb North America, Inc. (Simpsonville, southern Caro Lay that, the U.S.) the label of production be the product of P-8.The another kind of top sheet materials that is suitable for is can be from Havix Co., the label that Japan buys is the product of S-2355, this material is a kind of double-layer composite material, is handled by two kinds of synthetic surfactants, makes by the bicomponent fibre of combing and the manufacturing of ventilation (air-through) technology.Also having a kind of preferred top sheet materials is a kind of heat bonding carded web sheet, can be from Amoxo Fabrics, and the label that Inc. (Gronan, Germany) obtains is the product of ProfleeceStyle 040018007.

Another kind of preferred top flat 24 includes the hole forming thin film.Porose form film is preferred for top flat 24, because they can see through slop but itself does not absorb it, and reduced liquid return and rehumidified the tendency of wearer's skin, therefore, just keep dry with the surface of the form film of Body contact, so just alleviated the pollution level of health and make the wearer feel more comfortable.The form film that is fit to has description in following patent documentation: Decembers in 1975 were authorized the United States Patent (USP) 3,929,135 that is entitled as " having taper absorbent structure capillaceous " of Thompson on the 30th; Authorize people's such as Mullane the United States Patent (USP) that is entitled as " disposable absorbent article " 4,324,246 April 13 nineteen eighty-two with antifouling top flat; Authorize people's such as Radel the United States Patent (USP) 4,342,314 that is entitled as " the resilient plastic net sheet that represents fabric-like quality " August 3 nineteen eighty-two; Authorized people's such as Ahr the United States Patent (USP) 4,463,045 that is entitled as " the macroscopic view expansion measurements of the chest, waist and hips plastic deeping that shows unglazed visible surface and fabric sample feel " on July 31st, 1984; And on April 9th, 1991 authorize the United States Patent (USP) that is entitled as " multilayer polymeric thin film " 5,006,394 of Baird.

Block film 68 and nonwoven outer covering piece 23 in egative film 22 preferably includes.Interior block film 68 is impenetrable liquid (as urine) preferably, and is preferably made by thin plastic sheeting.Interior block film has towards body surface 79 and outward surface 77.This plastic sheeting preferably can be breathed freely, and gas can be appeared from diaper 20.In a preferred embodiment, a kind of microporous polyethylene film is as interior block film 68.A kind of suitable microporous polyethylene film is by Mitsui Toatsu Chemicals, Inc., and Nagoya, the label that Japan makes is the product of EspoirNo..Ventilative and the side seams design/processing of egative film 22 best appositions.Disposable band can further be connected to the outer surface of egative film.

The plastic film material of block film 68 is a kind of thickness thermoplastic films for about 0.012mm (0.5mil)～0.051mm (2.0mils) in being suitable for making, and preferably comprises polyethylene or polypropylene.This plastic sheeting quantitatively preferably be about 5g/m ²～35g/m ²But, should be appreciated that other softish liquid-tight material also can use." submissive " speech is meant that material is very submissive easily curved herein, and can be consistent with the general shape and the profile phase of human body at an easy rate.The water vapor transmission rate of plastic sheeting can be 3,000～4,000g/m ²Between/the 24hr.Its measuring method will be narrated afterwards.

The one side outwardly of nonwoven outer covering piece 23 and interior block film 68 links together and has constituted a lamination (being egative film 22).Nonwoven outer covering piece 23 is positioned at the outermost portion of diaper 20, and has covered the part of diaper 20 outermost portions at least.Outer covering 23 can connect together with any method of attachment well known in the art and interior block film 68.For example, nonwoven outer covering piece 23 can bond layer, bonding agent add the flower layer or are fixed on the interior block film 68 by the bonding agent array that discontinuous straight line, helix or point constitute uniformly continuously by one.The bonding agent that is suitable for is can be from Nitta FindleyCo., and Osaka, the code name that Japan obtains are the hot-melt adhesive of H-2128 and from H.B.Fuller JapanCo., Ltd., and Osaka, the code name that Japan obtains is the hot-melt adhesive of JM-6064.

In a preferred embodiment, nonwoven outer covering piece 23 is nonwoven web sheets of combing, as Havix Co., and Ltd., Gifu, the code name of Japan are the product of E-2341.Nonwoven outer covering piece 23 is made up of the bicomponent fibre of polyethylene (PE) and poly terephthalic acid diethylester (PET).The ratio of PE/PET is about 40/60.This bicomponent fibre is of a size of 2decitex * 51mm.Another kind of preferred combing adhesive-bonded fabric is can be from Chisso Corp., Osaka, and Japan obtains.Nonwoven outer covering piece 23 also can be made by the bicomponent fibre of polyethylene (PE) and polyethylene terephthalate (PET), and the ratio of PE/PET is about 30/70.

In a further advantageous embodiment, adhesive-bonded fabric be a kind of can be from Mitsui PetrochemicalIndustries, Ltd., the spunbond nonwoven web sheet that Tokyo, Japan obtain.The bicomponent fibre that this nonwoven web sheet is made up of polyethylene (PE) crust and polypropylene (PP) inner core is made.The ratio of PE/PP is about 80/20.The thickness of this PE/PP bicomponent fibre is similar to 2.3decitex.

Egative film 22 outsides best and absorbent article core 25 are pressed close to, and link together with it with any method of attachment well known in the art.For example, egative film 22 can add the bonding agent array of spending layer or being made of discontinuous straight line, helix or point and be fixed on the absorbent article core 25 by continuous uniform bond layer, bonding agent.The satisfied bonding agent of effect is H.B.Fuller Company of St.Paul, and Minnesota makes, and code name is the product of HL-1258.A kind of suitable method of attachment is the open network that adopts a kind of bonding agent fibril to constitute.This method is disclosed in and authorized people such as Minetola on March 4th, 1986, is entitled as on the United States Patent (USP) 4,573,986 of " disposable refuse accommodating laundry ".The another kind of method of attachment that is fit to is the pattern that some linear type bonding agent fibril rotations is constituted spiral.The apparatus and method that this method adopts can be referring to authorizing Sprague, the United States Patent (USP) 3,911,173 of Jr on October 7th, 1975; Authorize people's such as Ziecker United States Patent (USP) 4,785,966 on November 22nd, 1978 and authorized the United States Patent (USP) 4,842,666 of Werenicz on June 27th, 1989.In addition, method of attachment also can comprise heat bonding, pressure bonding, ultrasonic bonding, dynamic mechanically is bonding or other any suitable method of attachment well known in the art or the combination of these methods.

In an alternative, absorbent article core 25 does not connect together with egative film 22 and/or top flat 24, so as in the proparea 26 and back zone 28 bigger extensibility is provided.

The purposes of elastic leg cuff 52 is for improving the seal degree to liquid and other slop.Elastic leg cuff 52 can have several different embodiment to be used for reducing the leakage (lower limb hoop can be, and sometimes be also referred to as shank band, flank, barrier cuff or elastic cuffs) of slop in leg area.United States Patent (USP) 3,860,003 has described a kind of disposable diaper that can tighten leg opening that is provided with, and this leg opening has flank and one or more elastic component, forms a resilient lower limb hoop (closing ring).Authorize people's such as Aziz the United States Patent (USP) 4 that is entitled as " disposable absorbent article " March 20 nineteen ninety with elasticity flap, 909,803 have described a kind of disposable diaper, and this diaper has " setting " elasticity flap (barrier cuff) to increase the seal degree of leg area.JIUYUE in 1987 were authorized the United States Patent (USP) 4 that is entitled as " absorbent device with dual lower limb hoop " of Lawson on the 22nd, 695, authorized the United States Patent (USP) 4 that is entitled as " absorbent device " of Dragoo on January 3rd, 278 and 1989 with dual lower limb hoop of anti-leak, 795,454 have described a kind of disposable diaper with dual hoop of closing ring and barrier cuff.The United States Patent (USP) 4,704,115 of authorizing Buell on November 3rd, 1987 and be entitled as " disposable waist sealing medicated clothing " discloses a kind of disposable diaper or incontinent person's underwear, and this diaper or underwear are provided with edge leakproof ditch to be used for preserving the free fluid of underwear the inside.

Though each rubber-like lower limb hoop 52 can make to above-mentioned shank band, flank, barrier cuff or elastic cuffs in the similar structure of any structure, but each rubber-like lower limb hoop is preferably made the United States Patent (USP) 4 that has as above drawn for reference, 909, as described in 803: barrier cuff 54 in including, and barrier cuff 54 includes one and stops the wing 56 and a spacer assembly 58 (as shown in Figure 5) in each.Interior barrier cuff 54 can have one to insert member, and this member can have very high impermeability and good breathability.In a preferred embodiment, as above mentioned United States Patent (USP) 4,695,278 and 4,795, as described in 454: elastic leg cuff 52 contains in addition also that useful one or more strands of elastica 64 makes is positioned at enclosed elastic hoop 62 outside the barrier cuff 54.Elastica 64 is placed on the lower limb fin 4 usually, and is having under the predeformation condition (such as adopting the PUR mode) method and lower limb fin 4 with any link together.Before connection, elastica 64 can predeformation to 30%～200% between, be preferably between 50%～150%.A kind of preferred elastica 64 is that the code name of Fulflex International Company manufacturing is 9312 product.

Diaper 20 has an extensible vestibule 46 and an extensible back ear 48.According to Fig. 5, extensible ear 46 and 48 preferably includes: have the sidepiece flexible member 70 of sidepiece elastomeric material 124 (as shown in Figure 8), the side extension 23C of nonwoven outer covering piece 23 and the extension 72 (structure in proparea 26 though Fig. 5 has only drawn, the structure of the respective members on the structure of back zone 28 and the proparea 26 is same or similar) of interior barrier cuff 54.Preferably, at least one in the extensible ear 46 in front and back and 48 is that elasticity is extensile at least in the horizontal.More preferably, the extensible ear 46 in front and back and 48 the two all be that elasticity is extensile at least in the horizontal.In an alternative, forward and backward ear 46,48 all is that elasticity is extensile on vertical and horizontal.Here said " extensile " is meant that material can be stretched at least in one direction and to a certain degree and not takes place excessively to break.Here said " elasticity " and " elasticity is extensile " are meant that extensible materials can almost return to its original size after the external force of this material that stretches is cancelled.Except as otherwise noted, said here any material or parts are that " extensile " is meant that promptly elasticity is extensile.Extensible ear 46 and/or 48 more comfortable and more closely fit with wearer's body by the initial diaper that can make with regard to diaper and wearer are matched, and, keep this and applying body in the excremental whole wearing process thereby held at diaper because extensible ear 46 and/or 48 can make the side expansion of diaper and shrink.

Extensible ear

46 and 48 is breathable preferably.The water vapor transmission rate of ear reaches together with other parts of diaper total water vapor transmission rate together, and is extremely important to the generation that reduces the heat rash relevant with the high temperature wet condition and other skin problem.Be to reduce dampness in the diaper and damp and hot,

extensible ear

46 and 48 the total water vapor transmission rate of weighted average preferably are at least 2,000g/m ²/ 24hr more preferably is at least 4,000g/m ²/ 24hr.The total water vapor transmission rate of the weighted average of whole diaper is preferably at least 2,000g/m ²/ 24hr is to about 8,000g/m ²/ 24hr.

Water vapor transmission rate will be measured with the method that describes below: the calcium chloride (CaCl2) of known some is put into a flange cup, a sample is placed on cup top and fixing with retainer ring or hoop.This composite set is weighed and remember and make initial weight.Put this composite set into temperature (40 ℃) and the constant room of humidity (75%RH) 5 hours, then it is taken out in the room of this constant temperature and humidity, and make its balance 30 at least minute at the relaxing the bowels with purgatives of warm nature that stops up in the room that is placed with balance, claim this moment the weight of this composite set and note to make final weight again.Total water vapor transmission rate (MVTR) is calculated with following formula, and is expressed as g/m ²/ 24hr:

According to Fig. 6 and Fig. 3, extensible ear 46 has comprised sidepiece elastic component 70.Sidepiece elastic component 70 has last ora terminalis 46A, following ora terminalis 46B, medial border 46C and lateral border 46D.The extensible ear 48 that comprises the rear portion of sidepiece elastic component 70 has last ora terminalis 48A, following ora terminalis 48B, medial border 48C and lateral border 48D.Though, the form of the composition of each element on the proparea 26, portion, parts etc. can with back zone 28 on different (such as the structure of preceding extensible ear 46 structure with the extensible ear 48 in back, or the structure of the structure of following ora terminalis 46B and following ora terminalis 48B), but for convenience of description, these similar elements on proparea 26 and the back zone 28, portion, parts etc. are just described simultaneously here.In a preferred embodiment, auricle 10 and auricle 11 usefulness sidepiece elastic components 70 are made, and the whole zone of auricle 10 and auricle 11 has been endowed extensibility, has formed extensible ear 46 and 48 thus.In the embodiment shown in fig. 3, sidepiece elastic component 70 extends in the part of seam sheet 12 and 13.Therefore, extensible vestibule 46 and extensible back ear 48 interfix on seam 32, and, sidepiece elastic component 70 and sidepiece elastic component 70 in proparea 26 on seam 32, interfix (though in Fig. 5, not demonstrating seam sheet 12 and 13, the sidepiece elastic component 70 that has drawn among Fig. 5 and extended into seam sheet 12 and 13) in back zone 28.In addition, can also only make a part of zone of auricle 10 and 11 extensile.Extensible ear 46 and 48 is parts of auricle 10 and 11, after they are connected with sidepiece elastic component 70 and have born mechanical stretching, has just become extensile.In a preferred embodiment, roughly centrage 100 stretching, extensions longitudinally of medial border 46C and 48C.Lateral border 46D and 48D are not parallel to medial border 46C and 48C, also are not parallel to longitudinal centre line 100.Lateral border 46D and 48D are laterally protruding gradually near down ora terminalis 46B and 48B the time, therefore, lateral border 46D and 48D near ora terminalis 46B and 48B down the time away from medial border 46C and 48C.Extensible ear 46 and 48 near down ora terminalis 46B and 48B at medial border 46C, 48C and lateral border 46D, a transverse width L1 is arranged between the 48D; Close last ora terminalis 46A and 48A are at medial border 46C, and 48C and lateral border 46D also have a transverse width L2 between the 48D.Transverse width between interior lateral border is between medial border 46C and 48C and lateral border 46D and the 48D, at the width in a lateral direction perpendicular to longitudinal centre line 100.Therefore, the transverse width between medial border and lateral border has value within scope R, and scope R promptly is the zone that medial border 46C and 48C and lateral border 46D and 48D extend in a longitudinal direction jointly.Transverse width L1 is greater than transverse width L2, so extensible ear 46 and 48 will be more than the effective elasticity material quantity in a lateral direction at ora terminalis 46A on close and 48A place at the effective elasticity material quantity in a lateral direction at close ora terminalis 46B down and 48B place.Because lateral border 46D and 48D are laterally outward extending gradually on close ora terminalis 46B down and 48B direction, so do not have to reduce near under the situation of quantity of effective elasticity material at ora terminalis 46A and 48A place, increased near the effective elasticity material quantity that descends ora terminalis 46B and 48B place.In addition and since from ora terminalis 46A and 48A extensible ear 46 and 48 transverse width to the direction of ora terminalis 46B and 48B down gradually change, so variation has also taken place in the effective elasticity material quantity on this direction.This caused on whole extensible ear be used for product be engaged in user on one's body power or the gradient of power change.Medial border 46C and 48C also can be not parallel to longitudinal centre line 100, and laterally inwardly stretch out gradually when close ora terminalis 46B down and 48B, and like this, transverse width L1 is bigger than transverse width L2.Perhaps, medial border 46C and 48C also can be laterally slightly more protruding when close ora terminalis 46B down and 48B, but make transverse width L1 still greater than transverse width L2.

Extensible ear

46 and 48 can be formed (be that they are not the independent operational units that is fixed on the diaper 20, but constituted or be exactly these extensions itself by one or more layers the extension in the diaper different layers) by the global facility of diaper.In a preferred embodiment,

extensible ear

46 and 48 is extensions of main body 41.Preferably,

extensible ear

46 and 48 comprises global facility or continuous flaky material at least, and these parts or material have constituted the part of main body and extended to

extensible ear

46 and 48 continuously.Perhaps,

extensible ear

46 and 48 can be a separating member.This separating member does not comprise the global facility of the part of any formation main body 41.Can couple together by lateral section and form

extensible ear

46 and 48 this separating member and main body 41.

The extension 72 of barrier cuff 54 and nonwoven outer covering piece 23 were between the 23C of the portion that extends laterally and 23D in

extensible ear

46 and 48 zones in sidepiece elastic component 70 was placed on.In this sidepiece elastic component 70 is connected to effectively on the 23C of the portion that extends laterally of the extension 72 of barrier cuff 54 and nonwoven outer covering piece 23 and among the 23D at least one.Preferably, sidepiece elastic component 70 is all linking together with the extension 72 of interior barrier cuff 54 and the extension 23C and the 23D of nonwoven outer covering piece 23 under lax (zero strain) state basically effectively.

Sidepiece elastic component 70 can be connected on interior barrier cuff 54 and the nonwoven outer covering piece 23 effectively by adopting bonding form of interruption or successive basically bonding form.Here said " interruption " bonding cascade net sheet is meant in the cascade net sheet, and is only initially bonding on some isolating, isolated points between layer and the layer; Or it is not bonding substantially each other on some isolating, isolated discrete areas between the layer of cascade net sheet and the layer.On the contrary, " continuous substantially " bonding cascade net sheet is meant in the cascade net sheet that the whole binding face between layer and the layer all has successive substantially initially bonding.Because preferably whole the or major part of this cascade net sheet bonds together, so the stretching of inelastic net sheet (i.e. the nonwoven web sheet and the nonwoven outer covering piece 23 of interior barrier cuff 54) or towing and do not break.It is bonding preferably to adopt a kind of like this form between the layer of this stretching cascade net sheet and the layer: promptly after increment machinery stretched operation, all layers maintenance of this stretching cascade net sheet near-earth that connects is attached to together, and uses bonding agent that other layer of sidepiece elastic component and stretching cascade net sheet bonded together substantially continuously.In a particularly preferred embodiment, selected bonding agent painted spiral pattern (such as U.S.3,911,173 (Sprague, Jr) and U.S.4,842,666 (Werenicz) showed like that), quantitatively be about 0.116g/m ²The wide about 1.9cm of this spiral pattern (0.75in), one is close to one or slightly overlapping (less than 2mm).Preferred adhesive is such as can obtaining from Findley Adhesives, and code name is a kind of binding agent of H-2120.Alternative is, any other parts of sidepiece elastic component and stretching cascade net sheet can adopt heat bonding, pressure bonding, ultrasonic bonding, dynamic mechanically is bonding or any other method well known in the art, be interrupted or be bonded to each other continuously.

In sidepiece elastic component 70 is connected to effectively on the 23C of the portion that extends laterally of the extension 72 of barrier cuff 54 and nonwoven outer covering piece 23 and the 23D after, at least a portion of the compound stretch laminate that order produces stands enough mechanical stretchings, so that nonelastic parts wherein (such as the extension 72 of interior barrier cuff 54 and the 23C of the portion that extends laterally and the 23D of nonwoven outer covering piece 23) permanently extend.Then, make this compound stretch laminate return to its tension not substantially.Thus, extensible ear 46 and 48 has been made the stretch laminate (alternative is that sidepiece elastic component 70 can effectively connect at a tension, stands mechanical stretching subsequently) of " zero strain (zero strain) ".Here said " zero strain " stretch laminate is meant that lamination comprises two layers of material at least, and this two layers of material interfixes not straining substantially under (" zero strain ") state along at least a portion on their common surfaces of extending; One deck in the lamination comprises a kind of material extensile and that made by elastomer (promptly after the tightening force that applies discharges, the size in the time of can getting back to it substantially and do not strain); And the second layer is tensile (making but need not to be by elastomer), so, the second layer is stretched to when making it permanently extend (being so at least to a certain extent), and behind the tensile force that applies cancelling, it will can not get back to its original form when not being out of shape fully.Therefore, but consequent stretch laminate has been endowed the character (reaching the incipient extension point at least) of elastic stretching on initial mechanical stretching direction.The particularly preferred method and apparatus of making stretch laminate is to use engagement corrugation rolls or engagement corrugated plating to come parts are carried out mechanical stretching.Particularly preferred device and method is disclosed in the United States Patent (USP) 5,167,897 that December in 1992 was authorized people such as Weber on the 1st; Authorize people's such as Buell United States Patent (USP) 5,156,793 October 20 nineteen ninety; JIUYUE in 1992 was authorized people's such as Weber United States Patent (USP) 5,143,679 and the open No.0 955027A1 of the European patent that is entitled as " method and apparatus that activates motion net sheet " that is proposed by people such as Christoph J.Schmitz on May 7th, 1998 on the 1st.

As shown in Figure 5, preferably, sidepiece elastic component 70 usefulness bonding agents 76 are fixed on the sidepiece 68B of (more preferably directly being fixed to) interior block film 68.In a preferred embodiment, sidepiece elastic component 70 is on the outward surface 77 of the sidepiece 68B of block film 68 in being connected to.In alternative, in sidepiece elastic component 70 can be connected on the body-facing surface 79 of sidepiece 68B of block film 68.Preferred bonding agent is to be applied to globule shape, but also can be applied to helical form.In a preferred embodiment, bonding agent is a kind of flexible adhesives that comprise amorphous state and crystalline state composition.A kind of preferred bonding agent is like this provided by Findley Adhesive Company, and code name is the product of #H9224.Can be alternative be, also can use any adhering method well known in the art, comprise heat bonding, pressure bonding, ultrasonic bonding, dynamic mechanically is bonding or the combination of these adhering methods, in sidepiece elastic component 70 is connected on the sidepiece 68B of block film 68.

According to Fig. 8, the sidepiece elastic component 70 that is used as

extensible ear

46 and 48 comprises sidepiece elastomeric material 124.Sidepiece elastic component 70 also can comprise the one deck in first cladding material (coverstock) layer, 122 and second layer of cover material 126, preferably two-layerly all comprises.Alternative is that sidepiece elastic component 70 can not comprise any extra play.

Sidepiece elastomeric material 124 have first surface 150 and with first surface 150 opposing second surface 152, and first layer of cover material 122 that links together with the first surface 150 of sidepiece elastomeric material 124.In a preferred embodiment, first layer of cover material 122 is to be connected to (for example as shown in Figure 9) on the first surface of sidepiece elastomeric material 124 by bonding agent 160.More preferably, sidepiece elastic component 70 also comprises second layer of cover material 126; Second layer of cover material is connected on the second surface 152 of sidepiece elastomeric material 124 by bonding agent 164.Sidepiece elastomeric material 124 provides good and applying health by produce best maintenance (or keeping) power in wearer's side area.Preferably, the sidepiece elastomeric material is extensible at least in one direction, preferably contain on the important direction extensible in the horizontal, produce keeping (or keeping) power, this retentivity to prevent diaper 20 from body wear the position come off, sagging or glide and do not cause that at wearer's skin red seal is best.

Sidepiece elastomeric material 124 can have many kinds of sizes, form and shapes.In a preferred embodiment, sidepiece elastomeric material 124 is continuous level layer form.The preferred form of continuous level layer comprises: scrim (scrim), perforation (or shaped hole) thin film, elastic fabrics or non-woven material and other similar forms.In an alternative, sidepiece elastomeric material 124 is to constitute the continuous level layer with the strand (or fine rule) that is not close to mutually.The continuous level layer can be made into the Any shape that can be fit to auricle, comprises tetragon (comprising rectangle and square, trapezoidal) and other polygons.

Have been found that, the elastomeric material that is particularly suitable for sidepiece elastomeric material 124 is styrene block copolymer based scrim material, perforation (or shaped hole) elastic film, strand, preferred thickness be about 0.05mm～1.0mm (0.002inch's～0.039inch).Other elastomeric materials of be fit to making sidepiece elastomeric materials 124 comprise " active (live) " synthetic or natural rubber, other are synthetic or natural rubber foam, elastic film (comprising the thermal contraction elastomer thin film), elastomer weaving or nonwoven web sheet, elastic compound or other similar materials.

The extensible characteristic of sidepiece elastomeric material 124, such as: the first circulation stretching force (FCEF100%) under 100% percentage of elongation, the first circulation stretching force (FCEF200%) under 200% percentage of elongation, under 50% percentage of elongation the second circulation restoring force (SCRF50%) and under 50%, keeping the significant consideration that load all is the aspect of performance of disposable medicated clothing after 10～12 hours.The extensible characteristic of sidepiece elastomeric material 124 is preferably within the defined here scope.FCEF100% and FCEF200% are that disposable medicated clothing is using/the measuring of all perceptible " stretchings " when unloading.These two characteristics also affect user and obtain the suitable ability of using tensile degree.If side characteristic material 124 has higher relatively FCEF100% and FCEF200%, then disposable medicated clothing is being worn wearer's effort relatively just on one's body the time; Otherwise if side characteristic material has relatively low FCEF100% and FCEF200%, then may not reaching with health has suitable applying/adaptive degree.SCRF50% is also closely related with the applying/adaptive degree of disposable medicated clothing and wearer's body.If side characteristic material 124 has higher relatively SCRF50%, may cause skin red seal and uncomfortable when then using; If the SCRF50% of side characteristic material 124 is relatively low, then may not provide enough elastic force to make diaper remain on the wearer or not good on one's body with body fit.The load kept under 50% is evaluation to power fade performance in time, should limit to some extent this value, otherwise tangible sagging will the generation.

The value available stretch tester of FCEF100%, FCEF200% and SCRF50% is measured.Tester for elongation has a upper end folder and a lower end folder that is positioned at folder below, upper end.The upper end folder is transportable, and links on the stretching force measuring device.The lower end clamping fixes on the desk or on the ground.Prepare a wide about 2.54cm (1.0inch), be about the specimen (being tested elastomeric material) of 12.75cm (5inch) and it is clipped between upper end folder and the lower end folder, effectively sample length (L) (being full-length) is about 2.54cm (1.0inch).By the upper end folder stretching force is acted on specimen.If there is not stretching force to affact on the specimen, then the length of specimen is its unstretched length.Be applicable to herein suitable tester for elongation can (MA 02021 for 100 Royall Street, Canton, U.S.A.) obtains, and code name is Instron 5564 from Instron Corporation.

Two circulation of sidepiece elastomeric material 124 that shown Figure 10 stretch and the preferred embodiment of restoring force hysteresis curve.Curve E1 represents the first circulation stretching force, and curve R1 represents the first circulation restoring force simultaneously; Curve E2 (being represented by dotted lines) has represented the second circulation stretching force, and curve R2 then represents the second circulation restoring force.Stretching, extension and recovery characteristic are measured with following method.

In first circulation, the initial stretching force of effect when specimen is born under about 23 ℃ and moved with 25.4cm/min (10in/min) crosshead speed, and when the percentage of elongation that is elongated to 200%, kept 30 seconds; Specimen is got back to its relaxation state with same speed then.Specimen kept one minute under relaxation state, bore second stretching force (for second circulation) then under similarity condition and speed.

In a preferred embodiment, the FCEF100% of side elastomeric material 124 is at least 100grams/inch.More preferably, FCEF100% is about between 120grams/inch～220grams/inch, most preferably between about 150grams/inch～190grams/inch.FCEF200% is preferably between about 160grams/inch～450grams/inch, even more preferably between about 180grams/inch～300grams/inch, more preferably between about 200grams/inch～240grams/inch.The SCRF50% of sidepiece elastomeric material 124 is preferably between about 40grams/inch～130grams/inch, even more preferably between about 65grams/inch～105grams/inch, more preferably between about 75grams/inch～95grams/inch.Keep load for 50% time preferably between about 40grams/inch～130grams/inch, even more preferably between about 65grams/inch～105grams/inch, more preferably between about 75grams/inch～95grams/inch.

In preferred embodiment shown in Figure 8, elastomer scrim 124 has many thread first strands 125 and many thread second strands 127.First strand 125 and second strand 127 are sentenced a predetermined angle [alpha] at node 130 and are intersected mutually, form the netted hatch frame with a plurality of holes 132.Each hole 132 is by having at least two first adjacent strands and two second adjacent strands to constitute, so hole 132 is rectangular shape haply.Hole 132 also may be other form, constitutes such as parallelogram, square or arc section.Preferably, first strand 125 and second strand 127 are straight basically, and are parallel to each other basically.First strand 125 and second strand 127 are preferably 90 ° in the angle [alpha] that node 130 intersects.First strand 125 preferably is connected at node 130 places with second strand 127 or is bonding.A kind of preferred elastomer scrim 124 is that Conwed Plastics Company makes, code name is XO 2514, this material is gone up at structure direction B (i.e. first strand 125) and is 12 bursts of elastic strands of per inch, goes up at structure direction D (i.e. second strand 127) to be 7 bursts of elastic strands of per inch.

In another preferred embodiment shown in Figure 11, elastomeric material 124 can be to comprise porous, expansible, the 3 d elastic body net sheet 172 of macroscopic view.This net sheet 172 have a successive first surface 174 and one and first surface away from discontinuous second surface 174.Elastomer net sheet 172 preferably includes the form film that has the two layers of polymers layer at least, and wherein one deck is an elastomer layer 178 at least, and the one deck at least in other layers is the less epidermal area of elasticity 182.Elastomer net sheet 172 has many first holes 184 on its first surface 174.These first holes are to be limited out by the contiguous network of interconnected parts 186 on the plane of first surface 174.Each interconnected parts 186 is to go up spill along the cross section on its length direction.Interconnected parts 186 stop having constituted second hole 188 with the second surface at the net sheet each other substantially simultaneously.The particulars of relevant this structure and manufacture method thereof is disclosed on the U.S. Patent application of submitting on March 14th, 1,997 08/816,106.A kind of preferred porous elastomers material 124 is made by Tredegar Film Products, and code name is X-25007.First hole 184 can have Any shape.Preferably, first hole 184 has with a major axis and the shape perpendicular to the minor axis of major axis, and such as ellipse, and this major axis is orthogonal to the stress of the introducing distortion that applies usually.

In the embodiment shown in fig. 8, sidepiece elastic component 70 comprises first and second layer of cover material 122,126, and sidepiece elastomeric material 124 is arranged between first and second layer of cover material 122,126.First layer of cover material 122 has an inner surface 142 and an outer surface 144.The inner surface 142 of first layer of cover material 122 is towards sidepiece elastomeric material 124.Second layer of cover material 126 also has an inner surface 146 and an outer surface 148.The inner surface 146 of second layer of cover material 126 also is the surface towards sidepiece elastomeric material 124.Sidepiece elastomeric material 124 also has two plane surfaces, i.e. first surface 150 and second surface 152.In these two surfaces 150,152 each all is the plane that is arranged essentially parallel to first and second layer of cover material 122,126.First surface 150 is those plane surfaces of the most close first layer of cover material, 122 inner surfacies 142 of sidepiece elastomeric material 124; Second surface 152 is those plane surfaces of inner surface 146 of the most close second layer of cover material 126 of sidepiece elastomeric material 124.

Because sidepiece elastic component 70 all will stand mechanical stretching before use with in using, so first and second layer of cover material 122,126 elongations when preferably having higher relatively fracture, even more preferably tractile or tensile, plasticity (but not necessarily must be resilient) that can draw more preferably, do not have over-drastic tear or break, preferably without any tearing or breaking.Also have, first and second layer of cover material 122,126 are preferably submissive, soft and wearer's skin do not stimulated, and the same feel of clothes and comfort are arranged.Can make first and second layer of cover material 122,126 suitable material has various, such as the weaving of plastic sheeting, apertured plastic films, natural fiber (as the wood fiber and cotton fiber) or synthetic fibers (as polyolefin, polyamide, polyester, polyethylene or polypropylene fibre) or the complex of nonwoven web sheet or natural and/or synthetic fibers, or the weaving of coating or nonwoven webs.

Preferably, first layer of cover material 122 and second layer of cover material 126 are essentially identical non-woven materials.A kind of preferred non-woven material of demonstration is that Fiber Web Company makes, and code name is DAPP-S tex, quantitatively at 18～35g/m ²Between the scope.Non-woven material can be through strengthen or without strengthening.The non-woven material of preferred layer of cover material as the elastomer scrim is through reinforcement, and this material quantitatively is 18～35g/m before reinforcement ², after the reinforcement quantitatively is 40～70g/m ²Here said " quantitatively " is the weight of every square metre of plane net sheet material.Can use high strain non-woven material in addition.Can be alternative be that first and second layer of cover material 122,126 need not to be identical material, as long as the performance requirement of expection, satisfy to get final product such as elastic performance, flexibility, compliance, breathability and endurance quality.Here said " reinforcement non-woven material " is meant such non-woven material, wrinkling or contraction under the effect of its mechanical tension in structure direction D, thereby this material can extend under less pulling force on the structure direction D.

Fig. 9 is lamination 120 (being sidepiece elastic component 70) observable partial enlarged view in structure direction B.Have been found that after lamination 120 is fixed with bonding or alternate manner, just produced sidepiece fixed area A.A lamination 120 existing higher elasticity so again can leafing or creep, neither sacrifices the performance of any needs simultaneously and good Performance Characteristics is provided in the over-all properties category simultaneously.As the part of stacked manufacture process, sidepiece is fixing preferably by drip the bonding method of sidepiece to finish with glue, so that sidepiece elastomeric material 124 is fixed between layer of cover material 122 and 124.Can be alternative be, sidepiece fixing also can by make, heat sealing, ultrasonic bonding, acupuncture, alternative technique for sticking or other any method well known in the art finish.What another was alternative is to fix at elastomeric material and the stacked intact sidepiece that carries out later stepped construction of cladding material.

Lamination 120 preferably can provide very sensation of softness especially for wearer and consumer, and this point is extremely important, because consumer payes attention to flexibility.In traditional lamination, in order to attempt eliminating creep, regular meeting makes its flexibility produce unsafty reduction as a result, also is being attended by unsafty reduction aspect its activation capacity simultaneously.This is because the trial of this respect that forefathers did is (verified; these attempt all being not enough to eliminate creep) all concentrate on and use the extra bonding agent (often being to take whole coating methods) that melts and sprays; bonding to attempt to strengthen; this can cause lamination hardening entirely usually, and this exactly do not wish to take place.And the lamination of the preferred embodiment of the present invention, at the situation diabetes due to kidney-deficiency that does not only lose the desired soft feeling of consumer but also do not sacrifice its activation capacity except creep.

According to Fig. 9, first bonding agent 170 is coated on the inner surface 146 with exterior portion 180 corresponding second layer of cover material 126 of stepped construction 120.First bonding agent 170 also can be alternatively or is coated in the inner surface 142 of first layer of cover material 122 extraly.For convenience of description, text description and diagram are only at the glue of using on second layer of cover material 126.

Produced sidepiece fixed area A by this way, the leafing and the creep of its known lamination generation before having eliminated substantially and having followed make lamination 120 not have to realize high strain under leafing and the creep situation.Have been found that restriction first bonding agent 170 uses at stepped construction 120 marginal areas, can avoid impairment, also can avoid tearing of layer of cover material 122,126 extensibility of lamination 120.A series of glue that first bonding agent 170 is preferably painted as shown in Figure 9 drip 168, and preferably a kind of flexible adhesives that contain amorphous state and crystalline state composition of first bonding agent 170.A kind of preferred bonding agent is like this made by Findley Adhesive company, and code name is H 9224.

More preferably, lamination 120 contains second bonding agent 164.Second bonding agent 164 preferably is coated in the second surface 152 of sidepiece elastomeric material 124, but alternatively also can be coated in the first surface 150 of elastomeric material 124.Second bonding agent 164 is preferably painted spiral spray pattern 166, forms thus with the straight line sprinkling and compares more dispersive adhesive spots 167b.Needn't theoretical prove, it is believed that second bonding agent of the overwhelming majority of sprinkling aligns with structure direction D, have been found that therefore the helical form sprinkling has produced good activation characteristic.Here said " activation " is meant tensile ability.

Have been found that the second surface 152 that second bond layer 164 directly is sprayed onto sidepiece elastomeric material 124, better than second bond layer 164 is coated on the layer of cover material relative with it 126.This is because second bonding agent 164 will penetrate residual any inorganic agent or the oil of possibility on sidepiece elastomeric material 124 surfaces.If such retained material is retained on the sidepiece elastomeric material 124, through weakening the bonding of bonding agent after a while, the breakable layer stack structure 120 thus.For example, if these retained materials have intactly stayed, then before consumer buys this product during this period of time in, be used for the bonding just weakened of lamination 120.

When spiral bonding agent 166 directly is coated on the sidepiece elastomeric material 124, lamination 120 the peel value in spiral bonding agent district usually than the layer of cover material 126 that glue is coated onto its opposite on the time the peel value height.Here said " peel value " is meant layer of cover material 122,126 is separated from each other required power value.High peel value just is equivalent to the probability that lower leafing is in use arranged usually.

The 3rd bonding agent 160 preferably also is coated on the inner surface 142 of first layer of cover material 122.Preferably, the 3rd bonding agent 160 is a kind of elastomeric adhesives.The 3rd bonding agent 160 preferably also uses the method coating similar with the method for the aforementioned second spiral bonding agent 166, promptly paints spiral spray pattern 162, forms thus than linearity and applies more dispersive adhesive spots 167a.Need not theoretical demonstration, believe that the overwhelming majority the 3rd bonding agent 160 applies along structure direction D.

Best, the second and the 3rd bonding agent 164,160th, identical elastomeric adhesives.A kind of preferred bonding agent that can be used as the second and the 3rd bonding agent spiral spray district 162,166 is made by Findley AdhesiveCompany, and code name is H 2120.Second and triple helical spray in the district 162 and 166, coated weight separately is preferably in about 0.062～0.186g/m ², more preferably be about 0.124g/m ²

According to Fig. 1, diaper 20 also comprises continuous extensible waist spare 60.This continuous extensible waist spare 60 has improved the applying situation, and is easy to wear and seal.Continuous extensible waist spare 60 is part or zones of diaper 20, and it will produce elastic stretching, extension and contraction, thereby diaper 20 and wearer's waist are dynamically fitted.Continuous extensible waist spare 60 stretches along waist belt piece 6 and 7.Although the continuous extensible waist spare of other some diapers may be made of one continuous extensible belt, but continuous extensible waist spare 60 preferably includes two discrete parts: one is the continuous extensible belt 57 that is positioned on the proparea 26, and another is the individual continuous extensible belt 59 that is positioned on the back zone 28.Equally, according to Fig. 7, continuous extensible waist belt piece 57 and 59 preferably includes a waist elastic 80, this member comprises the extension (the structure on proparea 26 though Fig. 7 has only drawn, the structure on the back zone 28 is same or similar therewith) of waist elasticity body material 200 (showing) and one one deck at least in a plurality of layers (such as top flat 24 and egative film 22) that absorbent article core 25 is provided with in Fig. 8.Continuous extensible belt 57 and 59 preferably is that elasticity is extensile at least in a lateral direction, preferred then be horizontal and vertical all be that elasticity is extensile.In a preferred embodiment, waist belt piece 6 and 7 is extensile on its whole lateral length at least, and has formed the continuous extensible belt 57 and 59 that is made of waist elastic 80.In the embodiment shown in fig. 3, waist elastic 80 extensible entering in seam sheet 12 and 13, so, continuous extensible belt 57 and 59 interfixes on seam 32, and in the waist elastic on the proparea 26 80 with in the waist elastic on the back zone 28 80 also fixing on seam 32 (Fig. 7 has also shown the waist elastic 80 that extends in seam sheet 12 and 13, though seam sheet 12 and 13 does not show in the drawings).Continuous extensible belt 57 and 59 has constituted a continuous extensible waist spare 60 in the assembling form of diaper 20 shown in Figure 1.

It (is that they are not the independent operational units that is fixed on the diaper that continuous

extensible belt

57 and 59 also can be formed by the global facility of diaper 20, but form, or be exactly extension itself) by one or more layers the extension in each layer of diaper 20.In a preferred embodiment, continuous

extensible belt

57 and 59 each all comprised an extended part of main body 41.Preferably, continuous

extensible belt

57 and 59 comprises that at least a portion that constitutes main body 41 also extends into a body component or the continuous lamella in continuous

extensible belt

57 and 59 continuously.Can be alternative be, continuous

extensible belt

57 and 59 can be a separate member, these separate member can not comprise the integral member of any formation main body 41 parts.Can constitute continuous

extensible belt

57 and 59 by the waist that separate member is connected to main body 41.

Continuous extensible belt 57 and 59 comprises the extension of waist elastic 80 and the one deck at least in a plurality of layers (such as top flat 24 and egative film 22) that absorbent article core 25 is provided with.If in the middle of the layer of absorbent article core 25, additional have such as extra plays such as interior barrier cuff 54 or additional Liquid Absorption tissue layers, then this extra play also can constitute the part of continuous extensible belt 57 and 59.In preferred embodiment shown in Figure 7, the sidepiece 57B of continuous extensible belt 57 has comprised the cascade net sheet that the sidepiece by the end extension 23A of the extension 72 of interior barrier cuff 54, nonwoven outer covering piece 23 and waist elastic 80 constitutes.The central sections 57A of extensible belt 57 has comprised the cascade net sheet that the middle body by the end extension 23A of the end extension 24A of top flat 24, nonwoven outer covering piece 23 and waist elastic 80 constitutes (structure in the proparea 26 places though only drawn among Fig. 7, the structure at 28 places, back zone is preferably same or similar with it).Yet in an embodiment, interior block film 68 does not extend into continuous extensible waist spare 57.Can be alternative be that interior barrier cuff 54, top flat 24 and/or nonwoven outer covering piece 23 can not extend into continuous extensible belt 57.If top flat 24 and nonwoven outer covering piece 23 do not extend into continuous extensible belt 57, the extension and the waist elastic 80 of block film 68 in then continuous extensible belt 57 can comprise.

Waist elastic 80 is placed on the inboard of the inner surface (body-facing surface) of diaper 20.Waist elastic 80 can couple together with the extension 72 of interior barrier cuff 54, the end extension 23A of nonwoven outer covering piece 23 and the end extension 24A of top flat 24 effectively.Waist elastic 80 both can adopt bonding way at interval, also can adopt successive basically bonding form to be connected with the effective of them.In a concrete preferred embodiment, selected glue has been painted a helix shape, and (such as United States Patent (USP) 3,911,173 (Sprague is Jr.) with middle show such of United States Patent (USP) 4,842,666 (Werenicz)) quantitatively are about 0.116g/m ², the about 1.9cm of spiral live width (0.75inch), and can be close to each other or slightly overlapping (less than 2mm).Preferred bonding agent be such as can be from Findley AdhesiveCompany acquisition, and code name is the product of H 2120.Can be alternative be, between waist elastic and extensible other stacked any parts, can adopt heat bonding, pressure bonding, ultrasonic bonding, dynamic mechanically is bonding or other method well known in the art realizes mutual interruption or bonding continuously.

Waist elastic 80 effectively is connected to left and right in before the end extension 23A of the end extension 24A of extension 72, top flat 24 of barrier cuff 54 and nonwoven outer covering piece 23, preferably with its integral body not deformation length carry out pre-tension deformation (prestrain) in the horizontal.Can with the integral body of waist elastic not its transverse pre-tension of deformation length be deformed to the waist belt piece 6 of main body 41 and 7 initial length.Also can with the integral body of waist elastic 80 not deformation length carry out further pre-tension deformation, in a part that extends into seam sheet 12 and 13.In an embodiment, the waist belt piece 6 and 7 of main body 41 has comprised extension, the end extension 24A of top flat 24 and the end extension 23A of nonwoven outer covering piece 23 of left and right interior barrier cuff 54.Here said " initial length " is meant, a kind of single or composite length before applying elastic stretching and before applying permanent mechanical stretching.Here said " pre-tension deformation entire length " is meant an a kind of part of elastomeric material or whole length carried out total length after the transverse pre-tension distortion.In an embodiment, waist belt piece 6 and 7 initial length usually with identical with total length under the assembling form of end extension 24A of the extension 72 of barrier cuff 54 and top flat 24 in left and right before waist elastic 80 is connected.Also be connected length before with waist elastic 80 identical with the end extension 23A of nonwoven outer covering piece 23 usually for waist belt piece 6 and 7 initial length.The scope of the preferred pre-tension deformation of waist elastic 80 is its 20%～100% of (being relaxed state) length that do not stretch, and more preferably the pre-tension deformation scope of waist elastic 80 is 40%～80%.After the waist elastic 80 with pre-tension deformation connects, waist elastic 80 is just with other coupled parts, such as the extension 72 of interior barrier cuff 54, the end extension 24A of top flat 24 and the end extension 23A of nonwoven outer covering piece 23, be returned to its tension not substantially.Thus, continuous extensible belt 57 and 59 have just been formed.This extensible belt 57 and 59 can be stretched to the waist belt piece 6 of main body 41 and 7 initial length at least from the relaxed length of waist elastic.

Can be alternative be, be connected in waist elastic 80 before the extension of said a plurality of layers one deck at least, in this member only some by pre-tension deformation, therefore, a part that is in waist elastic 80 is reached roughly and the waist belt piece 6 of main body 41 and 7 the identical length of initial length by the pre-tension deformation total length of the waist elastic under the condition of pre-tension deformation 80.Preferably, on waist elastic 80, only so a part of material has been carried out pre-tension deformation, this part material is that the transverse width X (as shown in Figure 3) along the absorbent article core 25 adjacent with waist elastic 80 stretches.

The example of extensible elastomeric material is disclosed in the United States Patent (USP) 2,075,189 of authorizing Galligan March 30 nineteen thirty-seven; Authorized the United States Patent (USP) 3,025,199 of Harwood on March 13rd, 1962; Respectively on August 15th, 1978 with authorized the United States Patent (USP) 4,107,364 and 4,209,563 of sisson on June 24th, 1980; Authorized United States Patent (USP) in JIUYUE, 4,834,741 and 1992 of Sabee on May 30th, 1989 authorized on people's such as Buell the United States Patent (USP) 5,151,092 on the 29th.

Continuous extensible belt 57 and 59 is configured to extensile, can be stretched over the waist belt piece 6 of main body 41 and 7 initial length from the relaxed length of waist elastic 80 at least.Yet, waist elastic 80 combine be provided with a plurality of layers usually with absorbent article core 25 (such as top flat 24 and egative film 22, they do not have elasticity basically) in the extension of one deck at least be connected, therefore waist elastic 80 can only stretch between the initial length of the relaxed length of waist elastic 80 and waist belt piece 6 and 7, can not exceed the waist belt piece 6 of main body 41 and 7 initial length.This limit decision the upper limit of extensible scope of continuous extensible belt 57 and 59 (being continuous extensible waist spare 60), even if waist elastic 80 can be stretched over above the initial length of the waist belt piece 6 of main body 41 and 7 or the pre-tension deformation total length of waist elastic 80.Total length.This restriction to extensible range limit makes continuous extensible belt 57 and 59 that enough ductilities can not be arranged.Therefore, when in advance diaper 20 being through the wearer on one's body the time, diaper 20 might can't provide enough waist opening sizes, perhaps user must apply sufficiently high power to diaper 20, obtains enough waist opening sizes so that find out extensible degree from other extensible materials of diaper 20.When wearing diaper on one's body the wearer, may cause difficulty.

Therefore, give the elasticity extensibility, to obtain the wider extensible degree (getting final product extending range) of total length than the waist elastic 80 of the initial length of the waist belt piece 6 of main body 41 and 7 or pre-tension deformation to continuous extensible belt 57 and 59.That is, with waist elastic 80 under pre-tension deformation (tension) state effectively with interior barrier cuff 54, top flat 24 is connected with nonwoven outer covering piece 23, and before they are returned to complete relaxed state, to consequent, compound extensible lamination integral body (being continuous extensible belt 57 and 59) applies enough mechanical stretchings, making does not have elastic those parts, comprises a left side, the extension 72 of barrier cuff 54 in right, the end extension 24A of top flat 24, the layer of cover material (if present) of the part of the end extension 23A of nonwoven outer covering piece 23 and formation waist elastic 80 produces permanent elongation.Then, allow this compound extensible lamination be returned to its basic relaxed state again.Waist elastic 80 after this handles can be stretched to the waist belt piece 6 that exceeds main body 41 and 7 initial length from its relaxed length, can reach the length after the permanent elongation of non-resilient parts at least.This gives continuous extensible belt 57 and 59 wideer extensible scopes, therefore also more is of value to easily wearing.Can be alternative be, waist elastic 80 can lax substantially (zero strain) state down and interior barrier cuff 54, top flat 24 and nonwoven outer covering piece 23 link together, constitute " zero strain " extensible lamination thus.Preferred apparatus and method are disclosed in the United States Patent (USP) 5,167,897 that December in 1992 was authorized people such as Weber on the 1st; Authorize people's such as Buell United States Patent (USP) 5,156,793 October 20 nineteen ninety; JIUYUE in 1992 was authorized people's such as Weber United States Patent (USP) 5,143,679 and open No.0 955 027 A1 of the European patent that is entitled as " method and apparatus that is used to activate motion net sheet " that proposed by people such as Christoph J.Schmitz on May 7th, 1998 on the 1st.

Waist elastic 80 included waist elasticity body materials 200 can adopt and sidepiece elastomeric material 124 identical materials/structure.Can be alternative be that waist elasticity body material 200 also can adopt the material different with sidepiece elastomeric material 124.Waist elastic 80 can further comprise the one deck in first layer of cover material 202 and second layer of cover material 204, or two-layerly all comprises.The structure of waist elastic 80 can be same or similar with sidepiece elastic component 70.Layer of cover material 202 and 204 structure, material and/or feature can be same or similar with layer of cover material 122,126, perhaps also can be different with it.Also have, can be same or similar with the method that waist elasticity body material 200 is connected on layer of cover material 202 and 204 with the method for employing in the previously described auricle member 70, perhaps also can be different with it.In a particularly preferred embodiment, waist elastic 80 comprises the one deck in waist elasticity body material 200 and layer of cover material 202 or 204.Under these circumstances, waist elasticity body material 200 is arranged to towards interior barrier cuff 54 and top flat 24, and layer of cover material 202 or 204 be arranged to towards and contact wearer's body, therefore, waist elasticity body material 200 is not directly being pressed wearer's skin, thereby has reduced the incidence rate of skin red seal.

Figure 12 has showed another preferred embodiment of continuous extensible belt 57 and 59.In this embodiment, waist elastic 80 is placed on the inboard of nonwoven outer covering piece 23.Preferably, at the sidepiece 57B of continuous extensible belt 57, waist elastic 80 be the extension 72 of barrier cuff 54 and nonwoven outer covering piece 23 in being placed on end extension 23A between.At central sections 57A, waist elastic 80 be placed on the end extension 24A of top flat 24 and nonwoven outer covering piece 23 end extension 23A between.In waist elastic 80 can be connected to effectively on the end extension 24A of the end extension 23A of extension 72, the nonwoven outer covering piece 23 of barrier cuff 54 and top flat 24.In one embodiment, waist elastic 80 can comprise the one deck in waist elasticity body material 200 and layer of cover material 202 or 204.In an example, waist elasticity body material 200 is arranged to towards interior barrier cuff 54 and top flat 24, and layer of cover material 202 or 204 is arranged to towards nonwoven outer covering piece 23.This layout of cladding material owing to added one deck (layer of cover material) between waist elasticity body material 200 and nonwoven outer covering piece 23, makes and can't see waist elasticity body material 200 from the outside.In another example, waist elasticity body material 200 is arranged to covering 23 outward, and layer of cover material 202 or 204 is arranged to towards interior barrier cuff 54 and top flat 24.This layout of cladding material, owing between waist elasticity body material 200 and wearer's skin, added one deck (layer of cover material), thereby can reduce the incidence rate of red seal on the skin.In two examples, owing to reduced one deck layer of cover material (comparing) with two-layer layer of cover material, so the loft of continuous extensible belt 57 has reduced.In addition, because material there has reduced, so the breathability of continuous extensible belt 57 has increased, and the extensible degree of continuous extensible belt 57 is also bigger.In a preferred embodiment, constituted continuous extensible belt 57 by the waist elastic 80 that comprises waist elasticity body material 200, described waist elasticity body material 200 is returned to initial relaxed state again then by pre-tension deformation.When waist elasticity body material 200 returns to its initial relaxed state, other parts that link together with waist elasticity body material 200 can suppress waist elasticity body material 200 and get back to its initial relaxed length, thereby the whole degree of drawing of waist elasticity body material 200 can not be utilized fully.But in front among the embodiment of Miao Shuing, because the loft of continuous extensible belt 57 has reduced, so waist elasticity body material 200 can as far as possible closely return to its initial relaxed length, so waist elasticity body material 200 also just has bigger effective extensible degree.

Can be alternative be that waist elastic 80 can only comprise one deck waist elasticity body material and without any layer of cover material.At the sidepiece 57B of extensible belt 57, in waist elasticity body material 200 is placed between the end extension 23A of the extension 72 of barrier cuff 54 and nonwoven outer covering piece 23, and directly be connected with them.At central sections 57A, waist elasticity body material 200 is placed between the end extension 24A and nonwoven outer covering piece 23 of top flat 24, and directly is connected with them.Such structure for the loft that reduces extensible belt 57, to increase its breathability and have more effective extensible degree also be useful.

Sidepiece elastic component 70 and waist elastic 80 are made up of parts independently, and preferably, member 70 and 80 the two layout non-overlappings in the vertical.Yet member 70 and 80 preferably is arranged to not have basically each other hole, and thus, member 70 and 80 has formed a composite elastic volume grid on extensible ear 46 and 48.Here said " composite elastic volume grid " is meant a such zone, two or more independently elastomeric materials wherein are continuous basically, very close to each other or have only a predetermined gap between these elastomeric materials, the extensible effect that embodies thus is as a single elastomeric material.Preferably, member 70 and 80 is arranged to very close to each other, therefore is appreciated that under the assembling form of diaper 20, extensible ear 46 and 48 and the sidepiece 57B and the 59B of continuous extensible belt 57 and 59 has formed a unitary elasticity material between waist opening 36 and leg opening.Sidepiece elastic component 70 and waist elastic 80 are to be made of discrete parts, so sidepiece elastomeric material 124 and waist elasticity body material 200 also are to be made of discrete parts.This separate structure allows to adopt different materials separately in the design of sidepiece elastomeric material 124 and waist elasticity body material 200, this just makes the different parts of diaper 20 can have different separately extensible characteristics, such as power-percentage of elongation curve etc.This structure also allows to use side characteristic material 124 and the waist characteristic material 200 that is in different conditions (for example being under pre-tension deformation (tensioning) state or the relaxed state).So just allow to use different power that the different parts of diaper 20 are stretched to equal length, or use identical power that different parts are stretched to different length, adjust the pressure that is applied on wearer's skin whereby.For example, the waist elasticity body material 200 that diaper 20 contains can have high percentage of elongation under low-tension, and then user just can elongate continuous extensible waist spare 60 with less power, and this dispensing for diaper provides convenience; Simultaneously, the sidepiece elastomeric material 124 of diaper is used for being created in and continues the needed power of fitting on extensible ear 46 and 48, but this power can not produce red seal on skin.In one embodiment, the extensible ear 46 and 48 of the sidepiece elastomeric material 124 that comprises be designed to when the power of extensible ear 46 and 48 when being stretched to 50% (more specifically saying, is at SCRF50%) be 40grams/inch～130grams/inch; Meanwhile, the continuous extensible waist spare 60 that comprises waist elasticity body material 200 is designed to: extensible waist spare 60 has 100% percentage of elongation at least.

Sidepiece elastic component 70 and waist elastic 80 the two be arranged to not overlapping in the vertical, so sidepiece elastomeric material 124 and waist elasticity body material 200 are not overlapping yet.Since not overlapping on sidepiece elastic component 70 and waist elastic 80 structures, and

member

70 and 80 comprises the material of single percentage of elongation separately, so it has the roughly extensibility of homogeneous.This make user when stretching diaper 20 firmly evenly, in the drawing process of dispensing diaper, do not feel the variation of power.

Each seam couples together seam sheet 12 and 13, also just the appropriate section of extensible ear 46 and 48 is linked together thus, and has constituted two leg openings 34 and a waist opening 36 therefrom.Preferably, forward and backward extensible ear 46 and 48 overlaps with overlap mode along lateral border 46D and 48D, forms an overlapping seam construction.Can be alternative be that forward and backward extensible ear 46 and 48 can carry out the seam (not shown) with docking mode.Seam 32 bonding can adopt any method that is suitable for the concrete material that adopts on forward and backward extensible ear 46 and 48 as known in the art to implement.Therefore, ultrasonic seal, heat sealing, pressure is bonding, gluing or altogether sticking, stitching, spontaneous bonding and other similar method all may be the technology that is fit to.Preferably, adopt a kind of heat/pressure of predetermined pattern or ultrasonic welding mode that seam sheet 12 is linked to each other with 13, this mode can sustain power and the stress that produces on diaper 20 in the process of wearing.Seam 32 also is connected continuous extensible belt 57 with 59, constitute the continuous extensible waist spare 60 around waist opening 36.When sidepiece elastic component 70 and waist elastic 80 extend into seam sheet 12 and 13, seam 32 just will be positioned at sidepiece elastic component 70 fix in position in proparea 26 on the sidepiece elastic component 70 of back zone 28; And waist elastic 80 fix in position that will be positioned at proparea 26 are on the waist elastic 80 of back zone 28.The example of seam is disclosed in the United States Patent (USP) 5,569,234 of authorizing people such as Buell on October 29th, 1996; Authorized people's such as Johnson United States Patent (USP) 5,607,537 on March 4th, 1997; JIUYUE in 1997 was authorized people's such as Johnson United States Patent (USP) 5,662,638 on the 2nd and was authorized on November 11st, 1997 on people's such as Buell the United States Patent (USP) 5,685,874.Preferred seam is disclosed in Chriseoph J.Schmiez on open No.0 844 062 A1 of the European patent that is entitled as " thermally coupled of net sheet " that submitted on November 21st, 1996.

In a preferred embodiment, lateral border 46D and 48D are not parallel to medial border 46C and 48C, nor are parallel to longitudinal centre line 100.Lateral border 46D and 48D are laterally protruding when close ora terminalis 46B down and 48B.Between the medial border 46C and 48C and lateral border 46D and 48D of extensible ear 46 and 48, there is a transverse width L1 at close ora terminalis 46B down and 48B place, a transverse width L2 are arranged, the big sub-transverse width L2 of transverse width L1 near last ora terminalis 46A and 48A place.So extensible ear 46 and 48 in a lateral direction, and the available elastomeric material quantity at close ora terminalis 46B down and 48B place is more than close last ora terminalis 46A and 48A place.The extensibility at therefore close ora terminalis 46B down and 48B place has increased.In addition, because the two all is to have bigger transverse width (being that available elastomeric material is more) near ora terminalis 46B and 48B place down for extensible ear 46 and extensible ear 48, thus extensible ear 46 and extensible ear 48 combine the back near under ora terminalis 46B and the total transverse width in 48B place further strengthen (being that available elastomeric material quantity further increases).Because the transverse width at this close ora terminalis 46B down and 48B place is wanted the structure of some greatly, diaper is when keeping centering on the elastomeric material quantity of waist opening, around leg opening more elastomeric material amount has just been arranged, therefore diaper can not have too high pressure to the skin along leg opening and cause that skin is had harmful effect, but and the while can keep the lasting applying along waist opening.As shown in figure 13, under the form that extensible ear 46 and extensible ear 48 link together, seam 32 is not parallel to longitudinal centre line 100, and promptly seam is protruding the closer to its hypomere 32A.In addition, as described above, when sidepiece elastic component 70 was connected on extensible ear 46 and 48 under relaxed state, waist elastic 80 was connected on the waist belt piece 6 and 7 of main body 41 under tensioning (pre-tension deformation) state, is returned to basic relaxed state then again.Therefore, under relaxed state, littler than the girth by an extensible ear 46 and 48 parts on the diaper 20 along the girth of the diaper 20 of continuous extensible waist spare 60.This form has further strengthened the lasting coating performance along the waist opening place, has reduced simultaneously along the harmful effect to skin of the material at leg opening place.Here said " circumferencial direction " is meant the direction of the form lower edge waist opening of finishing in the diaper assembling.Here said " girth " is meant diaper length along the circumferential direction.

As shown in Figure 1, continuously zone 38 is that a part and continuous extensible waist spare 60 by forward and backward extensible ear 46 and 48, main body 41 constitutes.Zone is an extensile that part of or annular section on the diaper continuously, makes that the girth of continuous zone is tensile, to make things convenient for using of diaper 20.When diaper 20 through wearer's body on the time, diaper 20 must be stretched, forming enough wide waist opening and leg opening, so that the using of diaper.Zone 38 promptly is that part that stretch capability is arranged in the diaper 20 continuously.In the intact form of assembling shown in Figure 1, zone 38 is around forming by the waist edge 151 and 155 of diaper 20, the horizontal edge 159 in lower limb edge 153 and 156, crotch district 30 in proparea 26 and back zone 28 continuously.The minimum constructive height of zone is usually at the auricle place continuously.In the embodiment shown in fig. 1, the minimum constructive height of zone is measured along seam 32 continuously.Continuous zone 38 also has one not to be interrupted by leg opening 34, but the continuous minimum rate of accumulation 35 of the most close leg opening 34.Zone 38 comprises two parts continuously: one is continuous waist zone 37, and continuous extensible waist spare 60 is wherein arranged; Another is the continuous zone 39 than the bottom, wherein have extensible ear 46 and 48 and the part of main body 41 extend into wherein.In a preferred embodiment, continuously the waist zone is consistent with continuous extensible waist spare 60.

In a preferred embodiment, diaper shown in Figure 3 becomes the form of finishing of assembling shown in Figure 1.Under relaxed state, zone 38 can be 200mm～500mm, preferably 250mm～400mm along the original perimeter of

waist edge

151 and 155 continuously.Continuously zone 38 is extensible to along the girth (stretching girth) of

waist edge

151 and 155 and is at least 650mm, preferably is at least 700mm, more preferably is at least 750mm.The girth of zone 38 along the line 35 can be 300mm～550mm, preferably 350mm～500mm continuously.Zone 38 can be 50mm～150mm, preferably 80mm～120mm along the minimum constructive height of seam 32 measurements continuously.The height of the continuous zone 37 of waist (being continuous extensible waist spare 60) can be 5mm～40mm, preferably 15mm～30mm.In a side of diaper 20,

extensible ear

46 and 48 along the line 35 total lateral length are 50mm～120mm, preferably 60mm～100mm.

When the diaper of form becomes the form of having assembled as shown in Figure 3, just reduced local skin to the wearer, especially along the pressure of the skin of leg opening 34, this be because extensible ear 46 and 48 near there is bigger transverse width (i.e. effective percentage of elongation in a lateral direction) at ora terminalis 46B and 48B place down.If desired, then sidepiece elastomeric material 124 can adopt a kind of material with lower SCRF50% power further to reduce along the pressure of leg opening 34.Yet, reduce the lasting stickiness loss of energy that may cause whole diaper along the SCRF50% power of leg opening 34.Therefore, may need to increase pressure, realize the lasting applying of whole diaper along waist opening 36.This can realize by the method that only waist elasticity body material 200 is applied pre-tension deformation before being connected to waist belt piece 6 and 7 at waist elasticity body material 200.In addition, waist elasticity body material 200 also can adopt the material with higher SCRF50% power further to increase along the pressure of waist opening 36.The combination that these relevant power distribute makes diaper realize that continuing applying along waist opening makes along the probability that red seal takes place on the skin of leg opening lower simultaneously again.Can be alternative be when the diaper of form becomes the form of having assembled as shown in Figure 3, can provide lasting applying, and reduce along the probability that red seal takes place on the skin of waist opening along leg opening.This target can so realize: for example, can adopt the material with low SCRF50% power to make waist elasticity body material 200 to reduce the pressure along waist opening 36.Sidepiece elastomeric material 124 can adopt the material with low SCRF50% power.And sidepiece elastomeric material 124 also can carry out pre-tension deformation before being connected on auricle 6 and 7.

Figure 14 has shown another embodiment of diaper 20.As shown in the figure,

extensible ear

46 and 48

lateral border

46D and 48D can be parallel to longitudinal centre line (showing among Figure 14) and extend, and are parallel to medial border 46C and 48C.Also have,

extensible ear

46 and 48 elastomeric material near the width L3 transversely at

ora terminalis

46B and 48B place down roughly with close on the width at

ora terminalis

46A and 48A place identical, therefore,

extensible ear

46 and 48 provides the available elastomeric material amount of roughly the same quantity in a lateral direction at it.

In a further advantageous embodiment, diaper as shown in figure 14 forms the form of having assembled, and the original perimeter of zone 38 in relaxed state lower

edge waist edge

151 and 155 can be 210mm～510mm, preferably 260mm～410mm continuously.Continuously zone 38 is extensible to 650mm at least along the girth (stretching girth) of waist edge 151 and 155,700mm at least preferably, more preferably 750mm at least.The girth of zone 38 along the line 35 can be 300mm～540mm, preferably 390mm～490mm continuously.Zone 38 can be 50mm～150mm, preferably 80mm～120mm along the minimum constructive height of seam 32 measurements continuously.The height of the continuous zone 37 of waist (being continuous extensible waist spare 60) can be 5mm～40mm, preferably 15mm～30mm.In diaper 20 1 sides,

extensible ear

When diaper shown in Figure 14 becomes when assembling form, the lasting applying along waist opening can be provided, and also littler along the incidence rate of red seal on the skin of leg opening.For realizing this goal, sidepiece elastomeric material 124 can use the material with low SCRF50% power, and the corresponding elastic force that can improve waist elasticity body material 200 by the material that employing has higher SCRF50% power of waist elasticity body material 200.For this purpose, waist elasticity body material 200 can also carry out pre-tension deformation before being connected on waist belt piece 6 and 7.Otherwise, have the diaper of form as shown in figure 14, when it becomes when assembling form, can provide along leg opening to continue to fit, and make along red seal incidence rate on the skin of waist opening littler.For reaching this target, waist elasticity body material 200 can adopt the material with low SCRF50% power.Accordingly, can improve the elastic force of sidepiece elastomeric material 124 by the material that employing has higher SCRF50% power.For this purpose, sidepiece elastomeric material 124 can also carry out pre-tension deformation before being connected on auricle 10 and 11.

Figure 15 shows that an alternative of diaper 20.As shown in the figure, lateral border 46D and 48D are not parallel to medial border 46C and 48C, nor are parallel to longitudinal centre line (not showing among Figure 15), laterally outer stretching out when close ora terminalis 46B down of lateral border 46D and 48D and 48B.Therefore, extensible ear 46 and 48 is near down ora terminalis 46B and 48B at one and has a transverse width L5 between medial border 46C and 48C and lateral border 46D and the 48D, and ora terminalis 46A and 48A are between medial border 46C and 48C and lateral border 46D and the 48D and have transverse width L4 on close.Width L4 is greater than width L5, and therefore extensible ear 46 and 48 transverse widths (i.e. available elastomeric material quantity on horizontal direction) near last ora terminalis 46A and 48A place are greater than the transverse width at close ora terminalis 46B down and 48B place.Then the extensibility near last ora terminalis 46A and 48A place has increased.Also have, since extensible ear 46 and extensible ear 48 the two all be near on ora terminalis 46A and 48A place bigger transverse width (being available elastomeric material quantity) is arranged, so, after extensible ear 46 and 48 combines, near the further increase of transverse width (being available elastomeric material quantity) at last ora terminalis 46A and 48A place.In the form that an extensible ear 46 and extensible ear 48 combine, seam 32 is not parallel to longitudinal centre line 100, and promptly as shown in figure 16, seam 32 is near them during by top 32B, and is laterally protruding.In Figure 16 and since waist elasticity body material 200 before being connected to waist belt piece 6 and 7 by pre-tension deformation, so slightly dwindled a bit along the girth of continuous extensible waist spare 60.If waist elasticity body material 200 is by further pre-tension deformation, then as shown in figure 17, become littler along the girth of continuous extensible waist spare 60 than girth through the diaper of the part of extensible ear 46 and 48, thereby it is similar with shape shown in Figure 13 to Fig. 1 that the shape of diaper under the form of having assembled just becomes.Yet, since extensible ear 46 and 48 original configuration near on ora terminalis 46A and 48A place have bigger transverse width, so diaper 20 as shown in figure 17 ora terminalis 46A and 48A place on close still have more elastomeric material quantity.

In a further advantageous embodiment, wherein diaper as shown in figure 15 forms the form of having assembled, and wherein zone 38 its original perimeter along

waist edge

151 and 155 under relaxed state can be 220mm～520mm continuously, is preferably 270mm～420mm.Continuously zone 38 is extensible to 650mm at least along the girth (stretching girth) of

waist edge

151 and 155, is preferably 700mm at least, more preferably 750mm at least.The girth of zone 38 along the line 35 can be 300mm～530mm continuously, is preferably 380mm～480mm.Zone 38 can be 50mm～150mm, preferably 80mm～120mm along the minimum constructive height of seam 32 measurements continuously.The height of the continuous zone 37 of waist (being continuous extensible waist spare 60) can be 5mm～40mm, preferably 15mm～30mm.In a side of diaper 20,

extensible ear

46 and 48 along the line 35 total transverse width are 50mm～120mm, preferably 60mm～100mm.

The diaper of form as shown in figure 15, when its formation has been assembled form, just reduced partial to the wearer, especially along the pressure of the skin of waist opening 36, this be because extensible ear 46 and 48 near on ora terminalis 46A and 48A place have bigger transverse width (i.e. available elastomeric material quantity in the horizontal).If necessary, waist elasticity body material 200 can adopt the material with lower SCRF50% power, with the pressure of further reduction along waist opening 36.Yet, reduce along the SCRF50% power of waist opening 36 and may the lasting coating performance of whole diaper be caused damage.Therefore, may need to increase pressure, to realize the lasting applying of whole diaper along leg opening 34.This point can by before being connected on auricle 10 and 11 at sidepiece elastomeric material 124 only counter-lateral quadrents elastomeric material 124 carry out pre-tension deformation and realize.Also have, sidepiece elastomeric material 124 also can adopt the material with higher SCRF50% power, further increases the pressure around leg opening 34.These combinations that distribute about power allow the lasting applying of diaper realization around leg opening, and can reduce along the probability of the skin generation red seal of leg opening.Can be alternative be that the diaper of form as shown in figure 15 when it becomes when assembling form, can provide along waist opening to continue to fit, and reduce along the probability of the skin generation red seal of leg opening.This target can be achieved like this: for example, sidepiece elastomeric material 124 can adopt the material with low SCRF50% power, and with the pressure of reduction along leg opening 34, and waist elasticity body material 200 can adopt the elastomeric material with higher SCRF50% power.In addition, waist elasticity body material 200 can also carry out pre-tension deformation before being connected to waist belt piece 6 and 7.

When diaper 20 through wearer's body on the time, continuously zone 38 provides dynamic applying power, and diaper is remained on one's body the wearer.Though, it is better to the lasting applying meeting of diaper that continuous zone 38 produces higher applying power, but the higher applying power of zone 38 generations can cause generation difficulty when the wearer uses diaper continuously, because the user of diaper must apply the bigger power continuous zone 38 that stretches to diaper, with fixing wideer waist opening and leg opening.Because zone 38 has comprised sidepiece elastomeric material 124 and waist elasticity body material 200 continuously, put at cover that two kinds of elastomeric materials all must stretch in the process of diaper, so it is more important than the extensible characteristic of the extensible characteristic of independent continuous extensible waist spare 60 and/or independent extensible ear 46 and 48 to include the extensible characteristic of continuous zone 38 of side and waist elasticity body material, although the extensible characteristic of independent continuous extensible waist spare 60 and/or independent extensible ear 46 and 48 extensible characteristic also remain important.Prior art is such as the United States Patent (USP) 5,601 of authorizing people such as Kato in the bulletin on February 11st, 1997,547 disclose a waist elastic system as child's training pants, this system has improved coefficient of elasticity, and more comfortable applying is provided, and has increased ease of use.Yet this publication only is the improvement at waist elastic system.

In extensible scope, continuously zone 38 begins stretching from initial percentage of elongation (promptly 0%).Percentage of elongation can calculate from following formula:

Percentage of elongation=((stretching girth-original perimeter)/original perimeter) * 100),

And be expressed as the form of % (percentage ratio).The original perimeter of zone 38 is continuous zone 38 girths under relaxed state continuously, and the stretching girth is the girth of continuous zone 38 under extended state.Wide range of stretch makes diaper can obtain the waist opening and the leg opening of broad in use; Bigger stretching girth makes when using diaper, can obtain bigger space between the diaper of extended state and wearer's body.The girth of continuous zone 38 is that the waist edge (being the

waist edge

151 and 155 of continuous extensible waist spare 60) of the continuous zone 38 in edge records.

In order to help conveniently the using of diaper (being wide waist opening and wide leg opening), the original perimeter of the continuous zone 38 of diaper can be between about 220mm～about 500mm; The stretching girth of the continuous zone 38 of diaper is at least about 650mm.More particularly, for body weight is about the diaper of the child design of learning to walk of 7kg～10kg, the original perimeter of its continuous zone 38 is about 220mm～460mm, preferably is about 250mm～360mm; For body weight is about the diaper of the child design of learning to walk of 9kg～14kg, the original perimeter of its continuous zone 38 is about 240mm～480mm, preferably is about 270mm～380mm; For body weight is about the diaper of 13kg or the above child's design of learning to walk, the original perimeter of its continuous zone 38 is about 260mm～500mm, preferably is about 290mm～400mm.For body weight is about the diaper of the child design of learning to walk of 7kg～10kg, the stretching girth of its continuous zone 38 is at least about 650mm, preferably is about 700mm; For body weight is about the diaper of the child design of learning to walk of 9kg～14kg, the stretching girth of its continuous zone 38 is at least about 700mm, preferably is about 750mm; For body weight is about the diaper of 13kg or the above child's design of learning to walk, the stretching girth of its continuous zone 38 is at least about 750mm, preferably is about 800mm.The scope of the elongation of diaper can reach and be at least about 125% percentage of elongation, preferably is about 135%, more preferably is about 150%.

Zone 38 has a power-percentage of elongation curve and a stretching, extension modulus in extensible scope continuously.Power-percentage of elongation curve representation required power of the continuous zone 38 of stretching and the dependency relation between the percentage of elongation of zone 38 continuously; The ratio of variation and percentage of elongation variation of power that stretched modular representation, representation unit is g/% percentage of elongation (i.e. a gram/percent stretch).Measuring the method that stretches modulus will describe afterwards.Higher stretching, extension modulus means that the rate of change of power of the continuous zone 38 that stretches is higher.User can be taken this part as limit of stretch when the stretching, extension modulus is very high.Otherwise lower stretching, extension modulus means that the rate of change of power of the continuous zone 38 that stretches is lower, and this makes user not need to increase bigger power when stretching continuous zone 38, and user may identification not go out limit of stretch.Therefore, preferably, zone 38 has lower stretching, extension modulus near the stretching girth of using for diaper continuously.Also have, preferably, with less power diaper is stretched to the confession diaper and uses the stretching girth that covers.

For the convenience that helps the diaper dispensing or cover (is that less power just can obtain the percentage of elongation for the diaper use, and has less stretching, extension modulus) at the percentage of elongation place that wears for diaper dispensing cover, stretching, extension modulus at 125% percentage of elongation place should be not more than about 150 gram/% percentage of elongation, preferably be not more than about 120 gram/% percentage of elongation, more preferably be not more than about 100 gram/% percentage of elongation.Stretching, extension modulus in the following range of stretch of 125% percentage of elongation is preferably and is not more than about 150 gram/% percentage of elongation, more preferably is not more than about 120 gram/% percentage of elongation.Stretching, extension modulus at 135% percentage of elongation place should be not more than about 200 gram/% percentage of elongation, preferably is not more than about 175 gram/% percentage of elongation, more preferably is not more than about 150 gram/% percentage of elongation.Stretching, extension modulus in the following range of stretch of 135% percentage of elongation is preferably and is not more than about 200 gram/% percentage of elongation, more preferably is not more than about 175 gram/% percentage of elongation.Stretching, extension modulus at 150% percentage of elongation place is preferably and is not more than about 300 gram/% percentage of elongation, more preferably is not more than about 250 gram/% percentage of elongation.The power that obtains 125% percentage of elongation be preferably be not more than about 5,000g, more preferably be not more than about 4,500g.The power that obtains 135% percentage of elongation be preferably be not more than about 6,000g, more preferably be not more than about 5,500g.The power that obtains 150% percentage of elongation be preferably be not more than about 9,000g, more preferably be not more than about 8,000g.

Figure 18 shows that a preferred embodiment of the power-percentage of elongation curve of the continuous zone 38 of diaper 20.Figure 19 shows that the stretching, extension modulus-percentage of elongation curve of example shown in Figure 180.Obtaining the power-percentage of elongation curve of continuous zone 38 and the method for stretching, extension modulus-percentage of elongation curve will be described below.

Power-percentage of elongation curve that obtains continuous zone 38 and the method that stretches modulus-percentage of elongation curve are described below.The method is the ultimate elongation method of testing that is included in a correction in " Sintech TestWorks " software kit, be used for ergometry-percentage of elongation curve, this measuring method is mainly used to simulate the thrower with the custom process of diaper through on one's body the wearer time, this is to realize by Instron dynamometer and the girt in clamp position, it applies from 0 gram force to 10 continuous zone, 000 gram force or break until diaper, 10,000 gram forces wherein or the diaper pairing power of breaking has been represented the limit tension that is applied to continuous zone." power-percentage of elongation " curve in the method has provided from the relaxed state of diaper to the limit tension scope.Then, can be converted to " stretching modulus-percentage of elongation " data according to as above " power-percentage of elongation " data of gained.

The sample of the required preparation of this measuring method is as follows:

1) tested diaper sample is taken out from packaging bag;

2) in the measuring process, do not measure the inboard girth (relaxed state diaper girth) at diaper waist edge place with the measurement tape measure under the extended state at diaper.

This measuring method will be used following instrument:

1) tension force/loop test instrument Instron Model 5564

2) Sintech of function software TestWork Version 3.0

3) load transducer Instron Static Loadcell 100N

4) the long Teflon (Teflon) that has of clamp 20mm diameter 150mm is coated with

The pull bar of layer flatly is contained on the upper and lower clamp.

The setting value of the used instrument of this measuring method is as follows:

1) method of testing: stretch;

2) translational speed: 20inch/min;

3) full-length: upper and lower pull bar distance between centers can calculate by following formula

(full-length)=(the diaper girth of relaxed state)/2-30mm;

4) cycle-index a: circulation;

5) sensitivity of breaking: 75%;

6) load limitation: 10,000g;

7) calculate input: the diaper girth of relaxed state, at the point of load of 500g, 1000g, 2000g, 3000g, 4000g, 5000g, 6000g;

8) result of calculation: the diaper girth when loading 0g (being relaxed state), at 500g, 1000g, 2000g, 3000g, 4000g, 5000g, 6000g, the percentage of elongation at point of load place under peak load, girth under the peak load values, peak load.

The diaper girth at certain point of load place is calculated by following formula:

(diaper girth)=(the diaper girth of relaxed state)+(percentage of elongation) * 2

The percentage of elongation at certain point of load place is calculated by following formula:

(percentage of elongation)=(tensile diaper girth-lax diaper girth)/(lax diaper girth).

Method of testing is implemented with following steps:

1) prepares diaper sample and measurement data;

2) after aforesaid Instron instrument is set, Instron force cell and clamping device (jog) are set, and the calibration force cell;

3) login TestWork system;

4) from the method list toolbar, choose the extension test method, allow then " control panel ", " loadmeter ", " spread sheet " and " manually setting " is presented on the screen;

5) in calculating input, diaper week long data input full-length will relax;

6) set according to aforesaid full-length, and use scale established standards length (for example: lax diaper girth=380mm full-length=380/2-30=160mm);

7) with load in the loadmeter and the percentage of elongation zero clearing in the spread sheet;

8) test product is put on the upper connecting rod, measures the weight of product, then with the zero clearing again of load item;

9) sample is put on the clamping device, and checks and confirm that retaining hoop/shank lastex does not tangle pull bar;

10) after diaper is put on the clamping device, not to the loadmeter zero clearing;

11) clicking " RUN " begins to measure;

12) after measurement was finished, clamping device was got back to initial position;

13) click " file " and store data, and diaper is taken away;

14) to other sample repeating step 6) to 13).

With following mode disposal data:

1) after having surveyed all samples, data is outputed in the suitable expanded view program (being MicroSoft Excel);

2) be the power of unit by marking and drawing gram, obtain " power-percentage of elongation curve " at the percentage of elongation of representing with percentage ratio;

3) difference with the power between two consecutive number strong points just obtains " stretching, extension modulus " divided by the percentage of elongation difference between these two points;

4), draw " stretching modulus-percentage of elongation curve " by mark and draw the stretching, extension modulus that obtains in the step 3) at the percentage of elongation of representing with percentage ratio.

As previously described, when diaper through on one's body the wearer time, zone 38 has formed applying power on diaper 20 continuously, and diaper 20 is remained on one's body the wearer.Zone 38 has further comprised an expandable areas continuously, and this zone comprises the elastomeric material such as sidepiece elastomeric material 124 and waist elasticity body material 200.This expandable areas also can further comprise a leg elastics material, and this leg elastics material comprises the elastomeric material such as the elastic strands 64 of showing among Fig. 3.This leg elastics material can comprise the material as sidepiece elastomeric material 124 or waist elasticity body material 200.Here said " expandable areas " is meant successive range or the continuum on the diaper, its continuous level layer form by porose or atresia, or the elastomeric material of mutual unconnected elastic strands form and be endowed extensibility.Expandable areas is that part of generation contact skin pressure main on the continuous zone 38.The contact skin pressure that produces on the expandable areas makes diaper be remained on wearer's (lasting applying of diaper) on one's body.Contact skin pressure in the expandable areas can not be all consistent everywhere, for example, expandable areas along the contact skin pressure at waist opening place with along can be different between the contact skin pressure at leg opening place.In addition, along the radially girth of diaper or the shank girth of diaper, contact skin pressure can change.

In expandable areas, the elastic component of elastomeric material (many first strands and many second strands 127 of all elastomer scrims 124 as shown in Figure 8) is pressed on the skin, produces higher contact skin pressure than the other parts in the expandable areas scope (a plurality of holes 132 of all elastomer scrims as shown in Figure 8) usually.Therefore, reduce the contact skin pressure that elastomeric material is pressed on the skin and will reduce the local skin sickness rate.

The contact skin pressure that elastomeric material (sidepiece elastomeric material and/or waist elasticity body material) is pressed on the skin should be not less than about 0.1psi (pound/square inch), so that diaper remains on one's body the wearer, preferably be not less than about 0.2psi, more preferably be not less than 0.3psi.The contact skin pressure that elastomeric material (sidepiece elastomeric material and/or waist elasticity body material) is pressed on the skin should be not more than about 0.75psi, thereby be unlikely and in expandable areas, cause the skin morbidity, preferably be not more than about 0.65psi, more preferably be not more than about 0.55psi.Be pressed in any combination of selecting the above-mentioned scope of the contact skin pressure on the skin from elastomeric material, a kind of like this diaper can both be provided effectively: this diaper reduced from wearing the position come off, the sagging or danger of gliding, reduced the dangerous of skin morbidity in the expandable areas and reduced owing to elastomeric material causes the skin initiation potential.The contact skin pressure that elastomeric material (leg elastics material) is pressed on the skin should be not less than about 0.1psi, so that diaper remains on one's body the wearer, preferably is not less than about 0.2psi, is more preferably and is not less than about 0.3psi.The contact skin pressure that elastomeric material (leg elastics material) is pressed on the skin should be not more than about 0.75psi, causes the skin morbidity thereby be unlikely in expandable areas, preferably is not more than about 0.65psi, is more preferably and is not more than about 0.55psi.The acquisition elastomeric material is pressed in the method for the contact skin pressure data on the skin and will states in the back.

Be pressed in the contact skin pressure that the elastomeric material on the other parts of the comparable expandable areas of contact skin pressure on the skin is pressed on the skin along the elastomeric material at waist opening place in expandable areas big, so that the lasting applying of diaper is provided along waist opening.Be pressed in the contact skin pressure that the elastomeric material on the other parts of the comparable expandable areas of contact skin pressure on the skin is pressed on the skin at the elastomeric material along the leg opening place of expandable areas big, so that the lasting applying of diaper is provided along leg opening.Be pressed in the contact skin pressure that the elastomeric material on the other parts of the comparable expandable areas of contact skin pressure on the skin is pressed on the skin along the elastomeric material at waist opening and leg opening place in expandable areas big.Elastomeric material is pressed in the highest contact skin pressure on the skin and the difference of minimum contact skin pressure should preferably less than about 0.45psi, be more preferably less than about 0.25psi less than about 0.65psi in expandable areas.If difference levels off to zero, then the contact skin pressure that elastomeric material is pressed on the skin in the expandable areas all reaches unanimity everywhere, and this will further reduce the skin sickness rate that causes owing to different pressures.

Diaper also further includes added resilience body material, such as the spacer assembly 58 of interior barrier cuff 54.These added resilience body materials in the diaper are pressed in the added resilience body material that is brought on wearer's skin and are pressed in contact skin pressure on the skin, preferably be not more than about 0.75psi, preferably be not more than about 0.65psi, be more preferably and be not more than about 0.55psi.

The method that elastomeric material in the measurement expandable areas is pressed in the contact skin pressure data on the skin will be described below.The name of the method is called " AMI air pocket type pressure of contact surface test macro ", is by AMI Co., the commercially available prod that Ltd. provides.Its purposes is for measuring the surperficial contact pressure that is created between the soft material.This method is used for measuring the contact pressure between diaper and the wearer's body through revising.Shown air pressure is represented the pressure on the contact surface, is wherein deducted by the power that plasticity absorbed of material.The air bag that pick off is made by a very soft thin film and the pipe of an insertion main frame are formed.Measured value has converted direct current (DC) output (10mV=1gf/cm2) to.

This measuring method requires to prepare as follows sample:

1) tested diaper sample is taken out from packaging bag;

2) under 50% extended state, measure the width of the actual elastic body composition (being elastic strands) of elastomeric material, and calculate the area percent of elastic component.

This " AMI air pocket type pressure of contact surface test macro " by name comprises following equipment:

1) air bag AMI Co., Ltd. Model φ 15mm;

2) host A MI Co., Ltd. AMI 3037-2;

3) selected cell AMI Co., Ltd. AMI 3037-2B

4) cylinder AMI Co., Ltd.;

5) calibrating installation AMI Co., Ltd.;

6) data acquisition unit ANRITSU METER Co., Ltd.AM-7052;

7) data conversion software ANRITSU METER Co., Ltd.

DATA?COLLECTOR?System

AM7006WIN?VER.2.0?for?Windows

Above-mentioned measurement device needs to set as follows:

1) one of output cable is terminated to the out connector of main frame, another termination data acquisition unit;

2) turn on the power switch;

3) cylinder head (cylinder head) is shifted onto the end of the weakness of length with drive mechanism (gear);

4) air bag is connected on the cylinder;

5) will sell (pin) inserts in the blue color head on the drive mechanism; Rotation drive machine arrives the end up to pin; Waited for for 3 seconds;

6) press release lever, make cylinder pressure consistent, waited for for 3 seconds with ambient pressure;

7) will sell in the hole of inserting on the drive mechanism with the air bag same color; Rotation drive machine arrives the end up to pin;

8) take off air bag from cylinder; Rotation drive machine arrives the end up to pin;

9) check whether the output signal from main frame approaches zero, and allowable error is no more than 5mV (0.5gf/cm2);

10) air bag is received (attended operation must once be finished, if connect once more, then the internal capacity of air bag must change) on the main frame;

11) press air bag with palm or finger, air is wherein all discharged; Check the output signal that the main frame transmission comes, notice that this is a greatest measurement, and system not energy measurement surpass any value of greatest measurement; If contact surface is too severely crooked, and if surpass+20mV (2gf/cm2) from the output signal of main frame, then connect cylinder and press release lever;

12) prepare two air bags at least for code test.

The method needs the standard anthropometric dummy of a following form.

Figure 20 and standard anthropometric dummy 350 shown in Figure 21 are models that the body shape when getting wearer's sitting posture is made.The shape and size of standard anthropometric dummy should be based on the body sizes data of the diaper user of reality.The standard anthropometric dummy has a top 352 and a bottom 354.Top 352 and bottom 354 are by lower trunk line 380 separately.Lower trunk line 380 is the circumferences by the top of pubis.Top 352 comprises a torso portion 353.Torso portion comprise one by stringcourse 357 around the upper surface 355 (being presented among Figure 22) that forms, wherein stringcourse 357 is the circumferences along the upper end of the waist of torso portion 353.Torso portion 353 has one by the determined height of distance between stringcourse 357 and the lower trunk line 380.The girth of torso portion 353 from stringcourse 357 down torso-line 380 directions increase gradually.Bottom 354 comprises the buttocks 356 that is positioned at its back and is positioned at the shank 358 that stretch out from buttocks its front.Buttocks 356 and shank 358 are separated along the crotch's broken line 359 at the forward fatty fold of health.Two shanks 358 have the angle of forking 362 that faces toward between the femoribus internus 264.Shank 358 has a thigh line 366, and it is the circumference around the thigh of shank 358.Around forming, wherein stringcourse 357 includes straight line and curve to the shape of upper surface 355 by stringcourse 357.Figure 22 has showed a preferred embodiment of the shape of upper surface 355, and it is determined that it is based on actual wearer's size.The standard anthropometric dummy is made by vinyl chloride.

For being applicable to that body weight is the wearer's of about 7.0kg～about 10.0kg a diaper, the actual size of standard anthropometric dummy is as follows:

Stringcourse girth 460mm

Lower trunk line girth 470mm

The broken line girth 310mm of crotch

Thigh line girth 275mm

Trunk height 75mm

About 60 ° of angle of forking

For being applicable to that body weight is the wearer's of about 9.0kg～about 14.0kg a diaper, the actual size of standard anthropometric dummy is as follows:

Stringcourse girth 495mm

Lower trunk line girth 505mm

The broken line girth 330mm of crotch

Thigh line girth 290mm

Trunk height 80mm

About 60 ° of angle of forking

For being applicable to that body weight is about 13.0kg or above wearer's a diaper, the actual size of standard anthropometric dummy is as follows:

Stringcourse girth 520mm

Lower trunk line girth 530mm

The broken line girth 350mm of crotch

Thigh line girth 305mm

Trunk height 85mm

About 60 ° of angle of forking

The measurement point of waist elasticity body material and sidepiece elastomeric material is determined by following mode:

Point P1 is the point of radius of curvature minimum on the lumbar curve on right side of torso portion, and some P2 is the point of radius of curvature minimum on the lumbar curve in left side of torso portion, and some P3 is in the central authorities at the back of torso portion, and some P4 is in the forward central authorities of torso portion.Point P1, P2, P3 and the P4 that these are used to measure should be arranged on the following about 10mm place of stringcourse, and should be covered fully by the waist material of sample diaper.Point P5 is in the front portion of right shank, and some P6 is in the front portion of left shank.The air bag that is used for measurement point P5 and P6 should be installed in just with the contacted elastomeric material of shank of anthropometric dummy under.

For the measurement point of leg elastics material, be those points of the elastomeric material skin of pushing down the standard anthropometric dummy.

The executive mode of the method is as follows:

1) by the setting pressure measuring system as above is set;

2) prepare the sample diaper, and be installed on the standard anthropometric dummy;

3) put two air bags at a P1 and P2 place, and gaging pressure;

4) record pressure measurement data, and check whether pressure signal returns zero again, it is 5mV (0.5gf/cm that signal returns zero allowable error ²);

5) put two air bags at a P3 and P4 place, and gaging pressure;

6) record pressure measurement data, and check whether pressure signal returns zero again, it is 5mV (0.5gf/cm that signal returns zero allowable error ²);

7) put two air bags at a P5 and P6 place, and gaging pressure;

8) record pressure measurement data, and check whether pressure signal returns zero again, it is 5mV (0.5gf/cm that signal returns zero allowable error ²);

9) for a sample diaper, repeating step 2)～8).

Data are handled as follows:

1) converts the magnitude of voltage that records to psi (10mV=1gf/cm ²), obtain " the local average contact skin pressure in the expandable areas ".

" the local average contact skin pressure in the expandable areas " that 2) will obtain above, obtains " elastomeric material is pressed in the contact skin pressure on the skin " divided by the area percent of elastic component, and unit is psi.

Should be understood that example as described herein and embodiment only for reaching illustrative purposes, one of ordinary skill in the art can be made various modifications or variation according to its prompting, but this does not depart from the scope of the present invention.

Claims

1. a disposable medicated clothing (20), this medicated clothing have proparea (26), back zone (28) and are positioned at crotch district (30) between proparea (26), back zone (28), and described disposable medicated clothing (20) comprising:

Main body (41), this main body has top flat (24), and the egative film (22) that top flat (24) links together and be positioned at top flat (24) and egative film (22) between absorbent article core (25), this main body (41) comprises having waist edge (190,192) and lateral margin (191,193) intermediate (8,9), have the auricle (10,11) of waist edge (161,163) and be positioned at proparea (26) and the waist belt piece (6 of back zone (28), 7), wherein auricle (10,11) is from each lateral margin (191 of intermediate (8,9), 193) laterally stretch outwardly, and waist belt piece (6,7) is from the waist edge (190 of intermediate (8,9), 192) and auricle (10,11) waist edge (161,163) longitudinally stretches outwardly, with each auricle (10,11) be connected to the seam (32) of the counterpart in the opposed area, form two leg openings (34) and a waist opening (36) thus, and make extensible belt (57,59) form continuous extensible waist spare (60);

The waist elasticity body material (200) that is connected in the waist belt piece (6,7) of proparea (26) and back zone (28) and stretches continuously along waist belt piece (6,7), thus (26) and back zone (28) have formed continuous extensible belt (57,59) in the proparea;

Be connected to auricle (10,11) sidepiece elastomeric material (124), and constituted extensile ear (46 thus, 48), it is characterized in that, described extensile ear (46,48) form by " zero strain " stretch laminate and also wherein sidepiece elastomeric material (124) and waist elasticity body material (200) be parts independently, and be arranged to not overlapping each other.

2. disposable medicated clothing as claimed in claim 1 is characterized in that, described extensible belt (57,59) comprises waist elastic (80), and described waist elastic (80) arrives on the waist belt piece (6,7) of described main body (41) with the pre-tension deformation combinations of states.

3. disposable medicated clothing as claimed in claim 1, it is characterized in that, waist elasticity body material (200) comprises two individual components, one of them links to each other with the waist belt piece that is arranged in proparea (26) (6), another links to each other with the waist belt piece that is arranged in back zone (28) (7), wherein, these two parts are located to interconnect in seam (32).

4. disposable medicated clothing as claimed in claim 1, it is characterized in that, described continuous extensible belt (57,59) comprise sidepiece (57B, 59B), (57B 59B) comprises the continuous single elastomeric material that is in assembled configuration that is positioned between waist opening (36) and the leg opening (34) to described sidepiece.

5. disposable medicated clothing as claimed in claim 1 is characterized in that, egative film (22) comprises interior block film (68) and nonwoven outer covering piece (23), and nonwoven outer covering piece (23) wherein overlays the outside of interior block film (68).

6. disposable medicated clothing as claimed in claim 5 is characterized in that, extensible belt (57,59) comprises the extension and the waist elasticity body material (200) of outer covering piece (23).

7. disposable medicated clothing as claimed in claim 5 is characterized in that, extensible ear (46,48) comprises the extension and the sidepiece elastomeric material (124) of outer covering piece (23).

8. disposable medicated clothing as claimed in claim 1 is characterized in that, waist elasticity body material (200) overlays the inboard of this medicated clothing inner surface.

9. disposable medicated clothing as claimed in claim 1 is characterized in that, medicated clothing has the continuous zone (38) that is formed by waist elasticity body material (200) and sidepiece elastomeric material (124) at least;

Zone (38) is extensile in up to the extending range that is at least about 125% percentage of elongation continuously, and zone (38) has the stretching, extension modulus continuously in this extending range;

Stretching, extension modulus at 125% percentage of elongation place be not more than about 150g/% percentage of elongation and

The power that obtains 125% percentage of elongation is not more than 5,000g.

10. disposable medicated clothing as claimed in claim 9 is characterized in that, stretches modulus and be not more than about 150g/% percentage of elongation in up to the extending range of 125% percentage of elongation.

11. disposable medicated clothing as claimed in claim 9 is characterized in that, zone (38) has the original perimeter between about 220mm～about 500mm continuously.

12. disposable medicated clothing as claimed in claim 9 is characterized in that, the girth of zone (38) is extensible to 650mm at least continuously.

13. disposable medicated clothing as claimed in claim 9 is characterized in that, described extensible belt (57,59) comprises waist elastic (80), described waist elastic (80) with the pre-tension deformation combinations of states to the waist belt piece (6,7) of main body (41).

14. disposable medicated clothing as claimed in claim 1, it is characterized in that, described disposable medicated clothing is the type around the dress of wearer's trunk, wherein when this medicated clothing was worn on the standard anthropometric dummy, the contact skin pressure that sidepiece elastomeric material and waist elasticity body material are pressed on the standard anthropometric dummy skin was not more than about 0.75psi.

15. disposable medicated clothing as claimed in claim 14 is characterized in that, the contact skin pressure that sidepiece elastomeric material and waist elasticity body material are pressed on the standard anthropometric dummy skin is not less than about 0.1psi.

16. disposable medicated clothing as claimed in claim 14 is characterized in that, sidepiece elastomeric material and waist elasticity body material are pressed in the highest contact skin pressure on the standard anthropometric dummy skin and the difference between minimum contact skin pressure is not more than about 0.65psi.

17. disposable medicated clothing as claimed in claim 14 is characterized in that, the sidepiece elastomeric material is a continuous level layer form.

18. disposable medicated clothing as claimed in claim 15 is characterized in that, waist elasticity body material is a continuous level layer form.