KR20070024622A - Absorbent article comprising an elastic laminate - Google Patents

Abstract

A pant type absorbent article such as a pant diaper, a sanitary pant or incontinence pant, said article having a core region (3) comprising an absorbent core (2) and a chassis region (4) surrounding the core region. The article at least in part of the chassis region comprises a outer coversheet (10) in the form of an elastic laminate (11) having a Softness (S) according to Kawabata of at least 20, wherein the laminate is composed of first and second layers of fibrous material (12a, 12b) and an elastic film layer (13) located between said first and second fibrous layers. ® KIPO & WIPO 2007

Description

Absorbent article comprising elastic laminate {ABSORBENT ARTICLE COMPRISING AN ELASTIC LAMINATE}

FIELD OF THE INVENTION The present invention relates to panty absorbent articles, such as panty diapers, sanitary panties or urinary incontinence garments, the absorbent articles having a core region comprising an absorbent core and a chassis region around the core region. A core region is located at least in the crotch portion of the article, while the liquid impermeable backsheet is disposed at least in the core region on the side facing the garment of the absorbent core and the liquid permeable topsheet is formed of the absorbent core. It is arranged at least on the side facing the wearer.

An absorbent article having a defined core area and a frame area is considered to have a comfortable fit for the wearer. For panty articles such as panty diapers, sanitary panties, and incontinence panties, the articles can also be pulled up and down from the wearer's hips to allow the wearer or caregiver to easily coat and remove the article when soiled. It is well known to make such absorbent panties with elastic stretchable side panels and waist portions, which usually include elastic members, such as elastic yarns, contractively attached between the backsheet and the topsheet.

It is also known to make portions of the mold of absorbent articles of elastic material, such as stretch-bonded laminates. Such laminates may include a layer of meltblown elastomeric fibers that are stretched and sandwiched between the outer layers of the spunbonded web.

US 6,552,245 discloses an expandable outer cover for an absorbent article that provides a constant permanent deformation under tension. The expandable outer cover comprises a necked laminate in the form of one film sheet laminated to the necked film. Both films can be inelastic. The film may also have the ability to breathe.

WO 03/047488 discloses an elastic laminate comprising an elastic film bonded to first and second inelastic fiber layers on both sides. The laminate makes the laminate by bonding the inelastic fibrous layers to the elastic film layer and then stretches the composite to cause the inelastic material to be destroyed. The elastic film material may be a material for breathing function. The laminate may be incorporated into the absorbent article.

Further examples of absorbent articles made partially of elastic laminates are found in US Pat. No. 6,476,289 and JP 10043235.

However, there is still room for improvement with regard to the comfortable, well-fitting fabric-like feel of the types of absorbent articles described above.

Objects and most important features of the present invention

It is an object of the present invention to provide an absorbent article having a core area and a frame area, combining properties that are comfortable and well-fit to the wearer's body and a flexible cloth-like feel close to the fabric material. These and further objects are according to the invention that the article comprises an outer coversheet in the form of an elastic laminate having at least 20 Softness (S) according to Kawabata, in which at least a part of the frame region is formed, wherein the laminate is fibrous This is achieved by the fact that it consists of an elastic film layer positioned between the first and second layers of material and the first and second fiber layers.

Perhaps the elastic laminate has a degree of softness S according to Kawabata of at least 30 and more preferably at least 40.

According to one aspect of the invention, the elastic laminate has a formability (F) according to Kawabata of 50 or less, preferably 30 or less, more preferably 20 or less, most preferably 10 or less.

In one embodiment, the elastic laminate has a Drapability (D) of 40 or less according to Kawabata.

In further embodiments the elastic film layer has a function of breathing.

According to one aspect of the invention, the elastic laminate has a water vapor permeability (Water Vapour Transmission Rate) of at least 1500 g / m ² 24h, preferably at least 3000g / m ² 24h according to ASTM E96-00 Procedure D.

According to a preferred embodiment, a substantial portion of the crotch portion of the article is open from the elastic laminate.

According to one aspect of the invention, the elastic laminate is disposed in at least a substantial portion of the front region of the frame which is intended to be placed on the stomach of the wearer in use.

According to a further aspect of the invention, the surface area of the absorbent core is less than 30%, preferably less than 20% of the total surface area of the article as measured in the flat state shown in FIG. 2.

According to a further embodiment, the elastic laminate has an article transverse modulus of at least 30%, preferably at least 50%, more preferably at least 70% as measured according to the elasticity test specified in the description.

For some applications it is desirable that the waist region of the frame region be open from the elastic laminate.

In one embodiment of the invention, the elastic laminate consists of both the outer and inner cover sheets of the article in at least a portion of the frame region.

In a further embodiment of the invention, the article comprises an elastic waist region open from the elastic laminate, also an elastic waist region open from the elastic laminate, and a crotch portion open from the elastic laminate, wherein the elastic laminate Is positioned at least in a substantial portion of the front region of the mold which is intended to be placed on the wearer's abdomen in use.

According to one embodiment, the elastic laminate comprises first and second fibrous layers of spunbond material, each having a basis weight of 10 to 35 g / m ² , preferably 12 to 30 g / m ² , more Preferably it is 15 to 25 g / m ² , the breathable elastic film has a basis weight of 20 to 100 g / m ² , preferably 20 to 60 g / m ² .

1 shows a perspective view of a panty diaper.

2 is a simple plan view of a panty diaper in a flat, unshrunk state prior to molding.

3 is a cross section taken along line III-III of FIG. 2.

4 is a cross-sectional view through an elastic laminate according to the present invention.

Description of Preferred Embodiments

The present invention will now be described in more detail with reference to some embodiments shown in the accompanying drawings.

Absorbent goods

The term "absorbent article" refers to a product placed on the skin of a wearer to absorb and contain body exudates, such as urine, feces and menstrual fluid. The present invention mainly refers to disposable absorbent articles, which means articles which are not intended to be washed after use or to be stored or reused as absorbent articles. According to the invention a panty-shaped absorbent article is said to have a core region and a frame region surrounding the core region. Such panty absorbent articles are panty diapers, sanitary panties and incontinence panties.

The figure shows an embodiment of the panty diaper 1 for infants or incontinence adults. The panty diaper typically comprises an absorbent core 2 located in the core region 3 of the article and a frame region 4 surrounding the core region. The frame region includes a front region 5, a rear region 6 and a waist region 7. The core region 3 is located in the crotch portion a of the article and extends a constant distance to the front region 5 and the rear region 6. The crotch portion a is defined as a narrow portion of the article intended to be worn with the crotch between the wearer's legs. The article has a longitudinal direction y and a transverse direction x.

The article comprises a liquid permeable topsheet 8 and a liquid impermeable backsheet 9 covering the core region 3. The absorbent core 2 is enclosed between the topsheet and the backsheet.

Top sheet

The liquid permeable sheet 8 may be composed of a nonwoven material, for example spunbond, meltblown, carded, hydroentangled, wetlaid or the like. Suitable nonwoven materials may consist of natural fibers such as woodpulp or cotton fibers, artificial fibers such as polyester, polyethylene, polypropylene, viscose, or the like, or mixtures of natural and artificial fibers. The topsheet material may also be composed of tow fibers, which may be bonded to each other in a bonding pattern as disclosed, for example, in EP-A-1 035 818. Further examples of topsheets are porous foams, perforated plastic films, and the like. Suitable materials as the topsheet material should be flexible and nonirritating to the skin and intended to be penetrated by body fluids such as urine or menstrual fluid. The topsheet may also be different in other parts of the absorbent article.

Backsheet

The liquid impermeable backsheet 9 covering the core region 3 on the garment facing side of the core is covered with a thin plastic film, for example liquid impermeable material, such as polyethylene or polypropylene film, liquid impermeable material. Nonwoven materials, hydrophobic nonwoven materials resistant to liquid penetration, or laminates of plastic films and nonwoven materials. The core region backsheet material 9 has the ability to breathe and allow the vapor to escape from the absorbent core while still not allowing liquid to pass through. Examples of backsheet materials with a breathing function are porous polymer films, nonwoven laminates from spunbond and meltblown layers, porous polymer films and laminates from nonwovens. The backsheet 9 is preferably inelastic.

Out Cover sheet

The outer cover sheet 10 covering the front part 5 and the rear part 6 of the frame region 4 comprises an elastic laminate 11. The laminate 11 is elastic in at least the transverse x-direction of the article. The modulus in the x-direction should be at least 30%, preferably at least 50%, more preferably at least 70% as measured by the elasticity test specified below.

The elastic laminate 11 consists of first and second outer layers of fibrous material 12a and 12b and an intermediate elastic film layer 13 positioned between the fibrous layers. The outer fibrous layers 12a and 12b are chosen to give the laminate a soft and clothy feel. Examples of suitable materials are carded web and spunbond materials. The basis weight of the fibrous material layer should be 10 to 35 g / m ² , preferably 12 to 30 g / m ² , more preferably 15 to 25 g / m ² . Examples of suitable polymers used in the fibrous material are polyethylene, polypropylene and other polyolefin homopolymers and copolymers, polyesters. Natural fibers such as cotton may also be used as long as they provide the required soft and clothy feel.

The intermediate layer 13 is a perforated elastic film having a basis weight of 20 to 100 g / m ² , preferably 20 to 60 g / m ² , according to one embodiment of the invention. The film can be any suitable elastomer, natural or synthetic. Some examples of materials suitable for elastic films include low crystallinity polyethylene, metallocene catalyzed low crystalline polyethylene, ethylene vinyl acetate copolymers (EVA), polyurethanes, polyisoprene, butadiene-styrene copolymers, styrene / isoprene / styrene (SIS), styrene / butadiene / styrene (SBS), or styrene block copolymers such as styrene / ethylene-butadiene / styrene block copolymers. Blends of these copolymers may also be used and other modified elastomers or non-elastomeric materials may also be used. One example of a suitable film is a perforated three-layer elastomer film of PE-SEBS-PE.

The laminate 11 can be prepared according to a modified method of the method disclosed in WO 03/047488, in which one nonwoven layer 12a is applied to the film 13 in a viscous state and thus bonded to the film layer, Another nonwoven layer 12b is adhesively laminated to film layer 13 using, for example, a pressure sensitive hot melt adhesive. The deformation is in that the laminate increases to a point below the elongation at at least one peak load of the inelastic nonwoven layer and is stretched so that some strength remains for at least one of the nonwoven layers. The other layer may also be stretched to a point below the elongation at peak load or to a point that is torn during stretching.

The method disclosed in WO 03/047488 involves stretching the laminate over the point of lack of fibrous material, causing the inelastic layer to break completely. Therefore, as disclosed in WO 03/047488, the elongation of the laminate is not limited by the stretch modulus of the inelastic material.

In contrast to the method disclosed in WO 03/047488, in the production of the laminate according to the invention, at least one, preferably both, fibrous layers bonded to the elastic film are not completely torn. The selection of the fibrous material with elongation at maximum load greater than the elongation at break of the elastic laminate allows the elastic film to stretch without being obstructed by the fibrous layer during use.

The basis weight of the individual layers of the laminates mentioned above is related to the basis weight of the laminate after stretching.

The elastic laminate 10 preferably has breathability (water vapor transmission) according to ASTM E96-00 Procedure D of at least 1500, preferably at least 3000 g / m ² 24h.

Absorbent core

The absorbent core 2 can be any conventional one. Examples of commonly occurring absorbent materials are cellulose fluff pulp, tissue layers, high absorbent polymers (so-called superabsorbents), absorbent foam materials, absorbent nonwoven materials, and the like. It is common to combine cellulose fluff pulp with a superabsorbent in the absorbent body. It is also common to have an absorbent body comprising layers of different materials having different properties with respect to liquid receiving capacity, liquid distribution capacity and storage capacity. Thin absorbent bodies, for example, which are common in infant diapers and incontinence guards, often comprise a compressed blend or layered structure of cellulose fluff pulp and superabsorbent. The size and absorbent dose of the absorbent core can be varied to suit other uses such as infant or adult incontinence patients.

Panty diapers

The panty diaper disclosed in FIG. 1 is intended to surround the lower part of the wearer's torso, such as a pair of absorbent panties. A core region 3 located in the crotch portion a of the article extending into the front and rear regions of the absorbent pant. The frame region 4 surrounds the core region 3. The core region 3 is defined as the surface area of the article occupied by the absorbent core 2 and the outer area of the core covered by the liquid impermeable backsheet 9. The frame region includes a front region 5, a rear region 6 and a waist region 7. The front region 5 and the rear region 6 are connected to each other by ultrasonic welds 15, glue strings and the like along their longitudinal edges.

According to one embodiment of the invention, the surface area of the absorbent core 2 is 30% or less, preferably 20% or less of the total surface area of the article as measured in the flat state.

The elastic laminate 11 may cover the entire article, including the core region 3 and the entire frame region 4. According to a preferred embodiment, however, a substantial part of the crotch portion of the article is open from the elastic laminate 11. As used herein, "substantial portion" refers to at least 50%, preferably at least 75%. Preferably also the waist region 7 of the frame region is open from the elastic laminate. The waist region 7 comprises a nonwoven material that is elastic by an elastic member 14, such as an elastic yarn, which is resiliently attached between layers of material, such as a nonwoven material. Such elastic member 14 may also be disposed around the leg openings of the article. Ultrasonic welds 16, glue strings, etc. couple the elastic laminate 11 to the elastic nonwoven of the waist region 7.

The liquid impermeable backsheet material 9 lies below the absorbent core 2 and adjacent areas of the mold area just outside of the absorbent core 2. The area covered by the liquid impermeable backsheet 9 is defined as the core area 3. The nonwoven material 18 is disposed on the side of the article toward the garment of the liquid impermeable backsheet 9. The nonwoven material 18 is connected to the elastic laminate 11 by ultrasonic welding 17, a glue string, or the like. The elastic laminate 11 and the liquid impermeable backsheet are superimposed on the outside of the core region 3, as shown in FIG. 2, where the elastic laminate 11 is directed to the garment of the liquid impermeable backsheet 9. It is arranged on the side.

The elastic laminate 11 is preferably arranged as an outer coversheet material over a substantial portion of the frame region except for the waist region 7. It is preferred that the elastic laminate be disposed over at least a substantial part of the front region 5 of the frame region 4 which is intended to be placed on the stomach of the wearer during use. As used herein, "substantial part" means at least 50%, preferably at least 75% and most preferably at least 90% of the surface area of the front region 5 of the frame. The elastic laminate 11 preferably also consists of an inner cover sheet of the article in said part of the frame region. Thus, no additional topsheet material is required in these parts of the article.

An additional elastic side panel connecting the front region 5 and the rear region 6 is not required when using the elastic laminate 11 according to the invention. However, if desired, of course, an additional side panel that is elastic may also be provided, especially if the elastic laminate 11 is arranged only in part of the front region and / or of the rear region.

The elastic laminate should have a degree of softness S according to Kawabata of at least 20, more preferably at least 30, most preferably at least 40.

It is also preferred that the elastic laminate has a moldability (F) according to Kawabata of 50 or less, preferably 30 or less, more preferably 20 or less and most preferably 10 or less.

Moreover, it is preferable that an elastic laminate has drape property (D) according to Kawabata of 40 or less.

Explanation of the test method

Elasticity test

The method measures how the elastic material behaves in a cycle of repeated wear loads and unloaded loads. The sample is stretched to a defined height and periodic movements between zero and the defined height are performed. Record the desired wear and unload forces. The permanent, ie remaining elongation, of the relaxed material is measured.

Use Lloyd LRX, a tension tester capable of performing periodic movements, equipped with a printer / plotter or software presentation. The sample is prepared by cutting it to a width of 25 mm and a length of preferably 20 mm longer than the distance between the clamps of the tension tester.

Test the tension tester in accordance with the device instructions. The parameters required for the test (wear and unload forces) are adjusted as follows:

Crosshead speed: 500 mm / min

Clamp distance: 50 mm

전 Before load: 0.05 N

Place the sample in the clamp along the mark and ensure that the sample is centered and clamped vertically in the clamp. Start the tension tester and perform three cycles between zero and a given stretch, such as the highest prescribed first load. The sample is allowed to relax for one minute before the last cycle, then the permanent elongation is measured and the elongation is read by stretching the sample until a force of 0.1 N is detected.

Permanent elongation after relaxation should be less than 10% and measured by the method described above. Thus, an elastic modulus of 30% is defined as the laminate must have permanent relaxation after less than 10% elongation after reaching 30% elongation in the tension tester. 30% elongation means elongation 30% longer than the initial length of the sample.

Kawabata  exam

The Kawabata KES-FB test is a Japanese quality judgment system for use on textile materials and "The Standardization and Analysis of Hand Evaluation (2nd Edition), Sueo Kawabata, July 1980, The Hand Evaluation and Standardization Committee, The Textile Machinery Society of Japan ". The test used in the present invention includes two Kawabata testers, KES-FB2 for the measurement of bending strength, B (gf · cm ² / cm), and shear strength, G (gf / cm · degree) and tensile strain. Use KES-FB1 to measure EMT (%).

Bending strength  (B) KES - FB2

The slope is 0.5 cm ^-1 to 1.5 cm ^-1 and -0.5 cm ^-1 to -1.5 cm ^- was measured at between ^1.

Measurements were made with the following settings in both directions (machine direction, MD, and cross direction, CD):

Total sample area: 20 x 20 cm;

Maximum curvature: Kmax = ± 2.5 cm ⁻¹ ;

Bending speed: 0.5 cm ^-1 / sec;

Sample effective dimensions: 20 cm long and 1 cm wide;

Bending deformation is applied in the width direction.

Shear Strength (G) KES- FB1

The slope is 0.5 cm ^-1 to 2.5 cm ^-1 and -0.5 cm ^-1 to -2.5 cm ^- was measured at between ^1.

 Measurements were taken with the following settings in both directions (MD and CD):

Total sample area: 20 x 20 cm;

Tensile of specimen: W = W = 10gf / cm;

Maximum shear angle: φ = ± 8 °;

Sample effective dimensions: 20 cm wide and 5 cm long;

Shear deformation is applied in the width direction.

Seal Strain ( EMT )

Measurements were taken with the following settings in both directions (MD and CD):

Total sample area: 20 x 20 cm;

Max Load: Fm = 500gf / cm;

Tensile speed: 0.2 mm / sec;

Sample effective dimensions: 20 cm wide and 2.5 cm long;

Tensile strain is applied longitudinally.

Elongation sense 50mm / 10V.

Softness (S)

Softness (S) according to Kawabata is obtained according to the following equation:

Formability (F)

Formability (F) according to Kawabata is obtained from the formula: F = B.EMT.

Drape Castle (D)

Drape properties (D) according to Kawabata are obtained from the formula: D = 116 + 25 log (B · G / W), where W is the basis weight of the sample.

Four different samples were measured in the Kawabata test in terms of bending strength (B), shear strength (G) and tensile strain (EMT). The softness (S), formability (F) and drape (D) were calculated from these measurements.

The four samples were as follows:

Sample Laminate ( SL ) : An elastomeric laminate according to the invention, comprising a perforated three-layer elastomer film inside of PE-SEBS-PE having a basis weight of 36 g / m ² and a spun having a basis weight of 22 g / m ² Bond material, two outer layers of PP (polypropylene). The laminate is prepared by a variant of the method disclosed in WO 03/04788, wherein one spunbond layer is applied to the film in a viscous state and thus bonded to the film layer, while the other spunbond layer is for example a pressure The adhesive laminate is laminated to the film layer using a sensitizing hot melt adhesive (glue 3 g / m ² ). The laminate increases and stretches, where the inelastic spunbond layer is stretched to a point below elongation at peak load to retain some strength in the spunbond layers.

The above basis weight of the layers refers to the finished stretching after stretching. The basic weight of the individual layers before stretching is as follows: inner film layer 40 g / m ² , outer spunbond layer 25 g / m ² , and glue 3 g / m ^{2, respectively} . It was estimated from the basis weight of the layers before lamination and stretching because it is difficult to measure the basis weight of the individual layers after lamination and stretching. Stretch laminate before stretching had a total basis weight of around 93g / m ² I had a basis weight of 85g / m ² after stretching This means that about 10% strain. The deformations of the individual fiber layers and the film layer were then the same. That is, about 10%.

Ref. 1: cotton-knitted article. Jersey with so-called elastomer yarn.

Ref. 2: Outer coversheet of Tena Discreet, incontinence panties, odor control, medium size, made by SCA Hygiene Products AB. The outer cover sheet comprises two layers of nonwoven, with parallel elastic yarns that crimp the material therebetween.

Ref. 3: Outer cover sheet material of ordinary super incontinence panties by Poise, made by Kimberly-Clark. The outer cover sheet comprises two layers of nonwoven, with parallel elastic yarns that crimp the material therebetween.

Climate conditioning of the material was carried out at 20 ° C. and 65% RH for 48 hours. The absorbent core was removed for the panty-type product and the outer coversheet was stretched for 24 hours through a knitwear measuring device and allowed to relax for 24 hours in the same climate.

The size of the sample was 10 x 10 cm.

All tests were made in two material directions (machine direction, MD, and cross direction, CD) for three samples.

The following results were obtained.

Sample B, bending strength (gfcm ² / cm) G, shear strength (gf / cm EMT, Tensile Strain (%) MD CD Average MD CD Average MD CD Average SL 0.095 0.022 0.059 1.46 1.38 1.42 208.4 92.0 150.2 Ref. One 0.03 0.03 0.03 0.58 0.64 0.61 160.6 173.2 166.9 Ref. 2 1.05 0.09 0.57 0.87 0.68 0.77 23.9 211.7 177.8 Ref. 3 1.53 0.04 0.78 1.74 1.21 1.47 26.28 195.3 110.8

From these results, the softness (S), drape (D) and moldability (F) according to Kawabata were calculated according to the above-mentioned formula. These results are shown in Table 2 below.

Sample

Softness (S)

Drape property (D) 116 + 25log (B, G / W) Formability (F) B, EMT Basic weight (W) g / m ² SL 50 40 9 88 Ref. One 75 13 5 231 Ref. 2 14 45 67 160 Ref. 3 12 51 87 133

The results should be interpreted in the following way:

Softness (S): The higher the value, the more flexible the material.

Drape property (D): Higher values indicate a stiffer material.

Formability (F): A higher value indicates that the material is less formable.

Test laminates according to the invention have a softness (S) and moldability according to Kawabata close to cotton-knit articles (Ref. 1). In addition, the drape (D) according to Kawabata is closer to the cotton-knit reference material than the other two test materials used as outer cover sheets in conventional incontinence panties. The use of elastomeric laminates as outer cover sheet material in at least a portion of the frame region of the absorbent pant thus provides a panty-like article having a cloth-like feel close to cotton material. The panties will also have excellent comfort and fit to the wearer's body. Very economical use of the material is achieved by using elastomeric laminates only in those parts of the panties where the material properties are best used.

Claims (14)

A panty absorbent article, such as a panty diaper, sanitary panties, and incontinence panties, the article having a core region 3 comprising an absorbent core 2 and a frame region surrounding the core region, wherein the frame region The front, back and waist regions 5, 6 and 7, while the core region is located at least in the crotch portion a of the article, and the liquid impermeable backsheet 9 is provided with the garment of the absorbent core 2. Is disposed at least in the core region 3 on the side facing the surface and the liquid permeable top sheet 8 is at least disposed in the core region 3 on the side facing the wearer of the absorbent core 2, the article being in the lengthwise y and transverse directions. A panty-shaped absorbent article having a direction x, In at least part of the frame region the article comprises an outer cover sheet 10 in the form of an elastic laminate 11 having a degree of softness S according to Kawabata of at least 20, the laminate comprising fibrous materials 12a, 12b. And an elastic film layer (13) positioned between the first and second layers of and the first and second fibrous layers. The panty absorbent article according to claim 1, wherein the elastic laminate (11) has a degree of softness (S) according to Kawabata of at least 30, preferably at least 40. The panty-shaped absorbent article according to claim 1 or 2, wherein the elastic laminate (11) has a formability (F) according to Kawabata of 50 or less. 4. The panty absorbent article as set forth in claim 3, wherein said elastic laminate (11) has a moldability (F) according to Kawabata of 30 or less, preferably 20 or less, more preferably 10 or less. The panty-shaped absorbent article according to any one of claims 1 to 4, wherein the elastic laminate (11) has a drape property (D) according to Kawabata of 40 or less. The panty absorbent article according to any one of the preceding claims, characterized in that the elastic film layer (13) has a function of breathing. The panty absorbent article according to claim 6, wherein the elastic laminate (11) has a water vapor transmission rate according to ASTM E96-00 Procedure D of at least 1500, preferably at least 3000 g / m ² 24h. The elastic laminate 11 according to any of the preceding claims, wherein the elastic laminate 11 has at least 30%, preferably at least 50%, when the modulus of elasticity in the transverse direction (x) of the article is measured according to the elasticity test specified herein. More preferably at least 70%. The panty absorbent article according to any one of the preceding claims, wherein a substantial portion of the crotch portion (a) of the article is open from the elastic laminate. 10. The panty absorbent article according to claim 9, characterized in that the waist region (7) of the frame region (4) is open from the elastic laminate. The panty-shaped absorbent article according to claim 9 or 10, characterized in that the elastic laminate (11) is arranged in at least a substantial part of the front region (5) of the frame which, when in use, rests on the stomach of the wearer. The panty absorbent article according to any one of the preceding claims, characterized in that the surface area of the core region (2) is less than 30% of the total surface area of the article as measured in the flat state. The article according to any of the preceding claims, wherein the article comprises an elastic waist region (7) open from the elastic laminate (11), and a crotch (a) open from the elastic laminate, wherein the elastic The laminate is a panty absorbent article characterized in that it is a pull-up panty product, disposed in at least a substantial part of the front region (5) of the frame intended to be placed on the stomach of the wearer in use. The elastic laminate 11 according to any one of the preceding claims, wherein the elastic laminate 11 has a basis weight of 10 to 35 g / m ² , preferably 12 to 30 g / m ² , more preferably 15 to 25 g / m ² , respectively. Breathable elastic film having first and second fibrous layers 12a, 12b of spunbond material having, and a basis weight of 20 to 100 g / m ² , preferably 20 to 60 g / m ² A layer (13), said elastic laminate having a water vapor transmission rate according to ASTM E96-00 Procedure D of at least 1500, preferably at least 3000 g / m ² 24h.

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