MXPA98002956A - Disposable absorbent article composed with improved capacity of adjustment to the cue - Google Patents

Abstract

The present invention is a composite disposable absorbent article (20) for use adjacent to a body discharge area having a body facing surface (32), a garment facing surface (54), a longitudinal axis , a lateral axis, a primary absorbent member (30) with a length and a width and a secondary absorbent member (50) with a length and a width. The secondary absorbent member (50) is closer to the surface facing the garment of the primary member (30). The article further comprises a flexible bubble with fluid (31) to raise the surface facing the body (32) to the decarbon area.

Description

DISPOSABLE ABSORBENT ARTICLE COMPOSED WITH IMPROVED CAPACITY OF ADJUSTMENT TO THE BODY FIELD PE INVENTION The present invention relates to composite disposable absorbent articles. Disposable absorbent articles are considered to be absorbent devices designed to be used externally to a user's body, and to receive discharged fluids from the body. In particular, the present invention relates to sanitary napkins, catamenial products, inserts for incontinence and pantiliners, absorbers, disposables, composites, comprising a bubble with fluid to raise the surface facing the body of the article towards the user, especially in the liquid discharge area. The bubble with fluid is filled with gas such that it produces external pressures in order to maintain a comfortable fit of the absorbent article.

BACKGROUND OF THE INVENTION In its simplest form, the disposable absorbent articles comprise an absorbent element (sometimes referred to as an absorbent core), interposed between a body-contacting element, permeable (sometimes referred to as a topsheet or a wrap envelope) and a barrier Waterproof protective (sometimes referred to as a back sheet). The absorbent element is, of course, intended to receive and contain the fluids discharged from the body. The element that makes contact with the body is intended to provide greater or lesser comfort and dry feeling contact with the surface of the body, while allowing free passage of the fluids all the way to the absorbent element. The protective barrier is intended to prevent fluids that are expelled or escaping from the absorbent element from staining the wearer's garments. In addition to the three functional elements mentioned above, disposable absorbent articles are generally provided with means for supporting the device to the user's crotch area, as well as to the user's movements, where the user can more effectively develop their intended function. Typically, absorbent articles such as sanitary napkin are provided with an adhesive attachment means to secure the device to the inner crotch area of a user's undergarments. Although previously known absorbent articles perform their intended function, each conventional design suffers from certain deficiencies in one or more of the absorbency of bodily fluids, protection of the wearer's garments against staining, and / or physical comfort for the wearer. With respect to disposable sanitary napkins, at least two general classes currently exist. One of these classes is identified as being intended for the absorption of medium to high menstrual flows. This sanitary pad offer a relatively high absorbent capacity. The absorption capacity is commonly achieved by providing the sanitary napkin with a relatively thick and bulky absorbent member. While having a relatively high absorbent capacity, the volume of the absorbent member can cause a certain degree of discomfort of use. A second kind of sanitary napkin is intended for light or low menstrual flows, and are commonly referred to as pantyhose or shields for the panty. Sanitary pads of this kind, as a group, are thinner, a little more flexible and generally more comfortable than those of the first class. However, sanitary napkins of the second class typically lack the absorbent capacity of first class sanitary napkins. An attempt to provide the benefits of the two kinds of sanitary napkins previously described in a single composite sanitary napkin is disclosed in U.S. Patent 4,425,130. This composite sanitary napkin comprises a primary menstrual pad and a panty protector attached to each other at their corresponding ends, such that the two constituents are free to move relative to one another along essentially their length as a total. The primary menstrual pad is intended to absorb the volume of the bodily fluids discharged by the wearer, while the panty protector is intended to protect against staining the wearer's undergarments. In use, the relative freedom of movement between the primary menstrual pad and the panty protector serves to keep the primary menstrual pad adjacent to the crotch region of the wearer, while the panty protector remains associated with the undergarment of the wearer. the user. Although the relative freedom of movement between the primary menstrual pad and the panty protector serves to keep the primary menstrual pad close to the crotch region of the wearer, this freedom of movement can lead to a lack of stability if the menstrual pad Primary moves laterally beyond the side edges of the panty liner, providing an opportunity to stain the wearer's undergarment. Moreover, the voluminous primary menstrual pad, while being able to provide contact with the narrow body, is not flexible enough to mold and conform to the wearer's anatomy, and therefore, may cause discomfort. Another attempt to combine the benefits of the two classes of absorbent articles previously described is disclosed in United States patent application 8 / 294,663 filed on August 19, 1994 and assigned to Mayer et al. The sanitary pad composed of self-adaptation described in this application comprises a primary absorbent member having a length and a width and a secondary absorbent member having a length and a width. The primary absorbent member and the secondary absorbent member have a common length. The primary absorbent member includes an absorbent core and a fluid pervious top sheet superimposed on said absorbent core. The secondary absorbent member includes a fluid pervious topsheet, a fluid impermeable backsheet attached to the topsheet and an absorbent element positioned between the topsheet and the backsheet. The primary absorbent member is attached to the secondary absorbent member by attachment. The width of the secondary absorbent member is preferably at least 1.5 times the width of the primary absorbent member. Although this type of design is effective in that it has more absorbent material along the centerline of the pad where it can quickly absorb the volume of body fluids discharged by the user, it may still have the disadvantage of a poor fit. to anatomy. In an attempt to solve this problem, the primary absorbent member may be made bulky enough to be in intimate contact with the wearer's body, or, alternatively, an elastic member may optionally be comprised within the primary absorbent member by itself; the elastic member may be constituted by, for example, a fibrous material, or by a hollow and elastic structure.

In any case, the structures described above may have the disadvantages of being uncomfortable for the user, since they are not capable of effectively molding and shaping the user's anatomy.

BRIEF DESCRIPTION OF THE INVENTION The present invention relates to a disposable absorbent article composed for use adjacent to the discharge area of the body. The composite disposable absorbent article has a body facing surface, a garment facing surface, a longitudinal axis and a lateral axis, a primary absorbent member having a length and a width, and a secondary absorbent member that It has a length and a width. The primary absorbent member and the secondary absorbent members have their lengths each parallel to the longitudinal axis. The secondary absorbent member is closer to the surface facing the garment than the primary absorbent member. The primary absorbent member is attached to the secondary absorbent member by means of bonding, and the width of the secondary absorbent member is preferably equal to or greater than the maximum width of the primary absorbent member. The composite disposable absorbent article further comprises a flexible bubble with fluid, preferably a bubble with air, for raising the surface facing the body towards the discharge area.

BRIEF DESCRIPTION OF THE DRAWINGS Although the description concludes with the claims pointing out in a particular manner and claiming differently from the present invention, it is believed that the present invention will be better understood from the following description in combination with the accompanying drawings: Figure 1 is a view in top plant of a sanitary napkin embodiment composed in accordance with the present invention; Figure 2 is a cross-sectional view of the composite sanitary napkin shown in Figure 1, as taken along section line 2-2; Figure 3 is a cross-sectional view of the composite sanitary napkin shown in Figures 1 and 2, as taken along section line 3-3 of Figure 2; Figure 3A is a cross-sectional view of another embodiment of the composite sanitary napkin of the present invention; Figure 4 is a top plan view of another embodiment of a sanitary napkin composed of the present invention; Figure 5 is a top plan view of another embodiment of a sanitary napkin composed of the present invention; Figure 6 is a cross-sectional view of another embodiment of a sanitary napkin composed of the present invention; Figure 7 is a cross-sectional view of another embodiment of a sanitary napkin composed of the present invention; Figure 8 is a cross-sectional view of another embodiment of a sanitary napkin composed of the present invention; Figure 9 is a cross-sectional view of another embodiment of a sanitary napkin composed of the present invention.

DETAILED DESCRIPTION OF THE INVENTION The present invention is a composite disposable absorbent article exhibiting absorbency of body fluids, protection against staining of users' garments and improved physical comfort for the wearer. The composite disposable absorbent article is described below with reference to a sanitary napkin or catamenial product the term "sanitary napkin" as used herein, refers to an article that is worn by women, adjacent to the pudendal region and the which are intended to absorb and contain the various exudates that are discharged from the body (for example, blood, menstruation and urine) and that are destined to be discarded after a single use. The term "composite sanitary napkin", as used herein, refers to a sanitary napkin composed of separate constituents attached to one another to form a unitary structure. The terms "united" or "fixed", as used herein, encompasses configurations with which a first member is directly connected to a second member, and configurations with which a first member is indirectly connected to a second member by connecting the first member to intermediate members, which they in turn connect to the second member. Interla devices that reside partially within and partially external to the wearer's vestibule are also within the scope of this invention. As used herein, the term "pudendo" refers to the externally visible female genital organs and is limited to the lamajor, the laminora, the clitoris, and the vestibule. In Figures 1 to 3, a preferred embodiment of a sanitary napkin 20 composed of the present invention is shown. As can be seen in Figures 1 to 3, the sanitary napkin 20 comprises a primary absorbent member 30, a secondary absorbent member 50 jointly secured by attachment means 70 and a bubble with fluid 31 comprised within the primary absorbent member 30. The towel Composite sanitary has two surfaces, a surface that faces or makes contact with the body, and a surface that makes contact with or gives to the garment. The primary and secondary absorbent members each have mating surfaces and corresponding body facing surfaces. In use, the secondary absorbent member 50 is intended to dawn closer to the sanitary napkin garment 20 than the primary absorbent member. , which, in turn, is in direct contact with the user's anatomy. The sanitary composite pad 20 has two axes, a longitudinal axis, and a transverse axis, the term "longitudinal", as used herein, refers to a line, axis or direction within the plane of the composite sanitary napkin that is generally aligned with (e.g., approximately parallel to) a vertical plane that divides a user standing in left and right body halves when the composite sanitary napkin is used. The terms "transverse" or "lateral" as used herein, are interchangeable and refer to a line, axis or direction that lies within the plane of the sanitary napkin that is generally perpendicular to the longitudinal direction. The primary absorbent member 30 has two side edges 24 and end edges 25, which together form the periphery 26 of the primary absorbent member. The secondary absorbent member 50 has side edges 21 and end edges 22 which together form the periphery 23 of the secondary absorbent member and the sanitary composite pad 20. The sanitary composite pad 30 has a first end region 27, a central region 28 and a second region. end region 29.

The primary absorbent member 30 is that constituent of the composite sanitary napkin 20 intended to first receive the bodily fluids discharged by the wearer. The primary absorbent member 30 comprises an absorbent means 33, such as the absorbent core 34 and an upper sheet or liquid permeable cover material 32 superimposed on the absorbent core 34; the embodiment of Figures 1 to 3, the primary absorbent member 30 further comprises a bubble with fluid 31, typically a bubble with air, placed inside the absorbent core 34. The topsheet 32 is docile, of soft feel and non-irritating to the user's skin. In addition, the topsheet 32 is permeable to liquid allowing liquids to easily penetrate through its thickness. A suitable top sheet 32 can be manufactured from a wide range of materials such as woven and nonwoven materials; polymeric materials such as thermoplastic films formed with openings, plastic films with openings, and hydroformed thermoplastic films, porous foams; cross-linked foams; crosslinked thermoplastic films; and thermoplastic canvases. Suitable woven and nonwoven materials may be composed of natural fibers (for example wood or cotton fibers), synthetic fibers (for example, polymer fibers such as polyester, polypropylene or polyethylene fibers); or a combination of natural and synthetic fibers. A preferred top sheet comprises a film formed with openings. Films formed with openings are preferred for the topsheet because they are permeable to body exudates, and yet not absorbent and have a reduced tendency to allow liquids to pass back through and rewet the skin of the wearer. In this way, the surface of the formed film that is in contact with the body remains dry, thus reducing the staining of the body and creating a greater sense of comfort for the wearer.

Suitable formed films are described in U.S. Patent 3,929,135 issued to Thompson on December 30, 1975; U.S. Patent 4,324,246, issued to Mullane et al. on April 13, 1982; U.S. Patent 4,342,314 issued Radel et al. on August 3, 1982; U.S. Patent 4,463,045 issued to Ahr on July 31, 1984; and United States patent No ,006,394 issued to Baird on April 9, 1991. The preferred top sheet for the primary absorbent member of the present invention is a formed film described in one or more of the above patents, and sanitary napkins are marketed by The Procter & amp;; Gamble Company of Cincinnati, Ohio as "DRI-WEAVE". In a preferred embodiment of the present invention, the exposed or exposed surface of the formed upper sheet of film is hydrophilic to aid in the transfer of liquids, through the upper sheet faster than if the body surface were not hydrophilic to decrease the likelihood that menstrual fluids will flow out of the upper sheet instead of being led into and absorbed by the absorbent core. The topsheet 32 may be associated with the absorbent core 34 in any suitable manner. Suitable manners include, but are not limited to associating the topsheet 32 with the absorbent core 34 with adhesives such as by spraying or applying lines or spots of adhesives between the topsheet 32 and the absorbent core 34. Alternatively, or additionally, the topsheet 32 may be associated with the absorbent core 34 by entangling the fibers of the absorbent core 34 with those of the topsheet 32, melting the topsheet 32 to the absorbent core 34 with a plurality of individual, discrete melting joints. To ensure proper fluid transfer between the topsheet 32 and the absorbent core 34, it is preferred that the topsheet be secured substantially continuously to the underlying absorbent core 34 along the entire length of the common shell. By substantially continuously securing the topsheet 32 to the underlying absorbent core 34, the topsheet 32 will have a reduced tendency to separate from the absorbent core 34 during use. The separation of the absorbent core from the topsheet 32 can inhibit the transfer of fluid from the topsheet 32 to the underlying absorbent core 34. The absorbent core 34 may be any absorbent means that is generally compressible, conformable, elastic, non-irritating to the wearer's skin and capable of absorbing and containing body exudates. The absorbent core 34 can be manufactured from a wide variety of liquid absorbent materials commonly used in disposable sanitary napkins, and other disposable absorbent articles.

Examples of suitable absorbent materials include ground wood pulp (which is generally referred to as an air filter), accreted cellulose wadding, modified cross-linked cellulose fibers (such as that described in the US Pat.

US 5,217,445 issued to Young et al. On June 8, 1993), capillary channel fibers (i.e., fibers having intrafiber capillary channels such as those described in U.S. Patent 5,200,248 issued to Thompson on April 6, 1993 ), absorbent foams (such as those described in U.S. Patent 5,260,345 issued to DesMarais et al. on November 9, 1993 and patent of the United States.

U.S. 5,268,244 issued to DesMarais on December 7, 1993), thermally bonded air-laid materials (such as those materials described in U.S. Patent Application Serial No. 08/141, 156 entitled "Catamenial Absorbing Structures Having Layers thermally bonded for improved management of menstrual fluids and their uses in catamenial pads that have improved fit and comfort ", submitted to Richards et al., October 21, 1993 P & G Case 5051), absorbent, fiber, synthetic sponges short, polymeric fibers, gelling agents of hydrogel-forming polymer, peat moss or any of the equivalent materials or combinations of materials. Suitable absorbent cores comprising foams are described in European patent applications 0 598 833, 0 598 823 and 0 598 834. The total absorbent capacity of the absorbent core 34 together with its absorbent capacity of the secondary absorbent member must be compatible with the intended charge of the exudate for the sanitary composite pad 20. In addition, the absorbent capacity of the absorbent core 34, can be varied to adjust to users that vary within the expected amount of fluid volume exuded. For example, a different absorbent capacity can be used for composite sanitary napkins intended for daytime use as compared to those intended for night use, or for composite sanitary napkins intended for use by adolescent women as compared to those intended for women more mature The materials selected for use with the absorbent core 34 are preferably docile, soft, comfortable, compressible and elastic to increase the fit and body comfort of the primary absorbent member. Preferably, the absorbent core 34 is compressible such that the primary absorbent member will deform under relatively small forces that are experienced during normal use. In addition to being compressible, the absorbent core materials 34 need to be flexible and conformable such that the primary absorbent member is able to provide improved fit in and around the lips and perineum following the bubble with fluid 31. The ability to follow the topography of the flexible bubble with fluid 31 will provide intimate contact with the exposed genitals of the female user. Intimate contact with the exposed female genital organs helps transfer from the wearer to the primary absorbent member without allowing the fluid to deviate or run out of the primary absorbent member. Although these characteristics of the absorbent core 34 allow for improved fit, they also improve the product so that they are both soft and comfortable for the wearer. In the embodiment illustrated in Figures 2 and 3, the absorbent core 34 is composed of an absorbent layer made of a material placed by thermally bonded air longitudinally bent twice on itself so as to internally comprise the bubble with fluid 31. The bubble with fluid can comprise essentially any fluid, for example, a gel, which is capable of providing the flexible effect; preferably the fluid is a gras and more preferably this is air. The bubble liner 31 can be made from any material that provides a quantity of internal sustainable fluid during the expected life of the product from the manufacture of the absorbent product to the disposal of the same. The material used for the bubble lining should be soft and compliant in order to allow deformation or flexibility of the bubble. Typical materials may also be those used for the waterproof backsheets of the secondary absorbent member 50 described hereinafter as well as the polyethylene terephthalate film and aluminum film or mixtures and laminates of these materials. The bubble with fluid is typically longer along the longitudinal axis than wide along the lateral axis. In addition, the bubble may have a variety of shapes that are typically symmetrical to the longitudinal axis, but asymmetric to the lateral axis. The function of the bubble can also be provided by a plurality of smaller individual bubbles which in combination provide the desired shape. In particular, two or three bubbles can be used instead of a single bubble, in order to raise the surface facing the body of the composite sanitary napkin and to provide the bending lines between the bubbles. In a preferred embodiment shown in Figures 1 to 3, the bubble with fluid 31 is comprised entirely within the primary absorbent member 30, but in any case it is preferred that the bubble with fluid or the plurality of smaller bubbles do not extend beyond the periphery 26 of primary absorbent member 30. As illustrated in Figures 1 and 2, bubble with fluid 31 is approximately the same length as primary absorbent member 30; however, it is quite possible that the bubble with fluid 31 is shorter than the primary absorbent member 30 and still function effectively. It is preferred that the fluid bubble 31 be located in such a manner, in use, that it corresponds to the discharge area of the user; a bubble with fluid that is shorter than the primary absorbent member could extend, for example, substantially along the central region 28 of the sanitary napkin. The bubble with fluid 31 is typically filled such that the filling volume is substantially below its maximum filling volume for the purpose of providing an external surface that is wobbly, flexible, and easily deformable. This ability to deform, also referred to as flexibility, provides the desired exceptional ability to adapt to the surface topography of the bubble and to the overlying absorbent 33 and the topsheet 32 to the topography of the individual user of a sanitary napkins in accordance with the present invention. By filling the bubble no more than 90%, preferably no more than 80% of the maximum volume of the bubble, it is possible to ensure that even under common temperature changes during the use of this product, the bubble with fluid will remain flexible such that it is adapt the product to the topography of the user. As an alternative, the material that forms the bubble liner with fluid at least on its side facing the body, may be elastic for the purpose of providing a bubble with fluid with the desired characteristics of flexibility. The filling of the bubble in this case can exceed 100% or even 150% of the volume of the bubble without stretching. Referring now to Figure 3A, there is shown a cross-sectional view taken along the transverse axis of another embodiment of a composite sanitary napkin of the present invention. In this embodiment, the absorbent core 34 is preferably comprised of an air filter. The air felt absorbent core is made in a generally oval shape to provide the primary absorbent member 30 with a generally oval shape; the bubble with fluid 31 is comprised within the absorbent core of the air filter 34. Although the core 34 shown in Figures 3 and 3A has a generally rectangular or oval cross-section, the absorbent core can be manufactured in a wide variety of ways such as circular, triangular, square, pentagonal U-shaped, doubled Z, etc. Optionally, the primary absorbent member 30 may comprise a barrier against the fluid 35. The barrier against the fluid 35 tends to contain the fluids absorbed within the absorbent core 34, and may be constructed from materials having the same properties as the backsheet liquid impermeable, on the secondary absorbent member 50 described hereinafter. Optionally, the primary absorbent member 30 may comprise an acquisition layer 46, positioned between the topsheet 32 and the absorbent core 34. The acquisition layer 46 may serve several functions, including improving the wicking effect or impregnation of the exudates. on and towards the absorbent core 34. By improving the wicking effect or impregnation of the exudates, the acquisition layer provides a greater uniform distribution of the exudates throughout the length of the absorbent core 34. The acquisition layer 46 may be composed of several layers. different materials, including non-woven or woven webs of synthetic fibers including polyester, polypropylene or polyethylene fibers; natural fibers including cotton and cellulose, mixtures of these fibers; or any of the equivalent materials or combinations of materials. Examples of sanitary napkins having an acquisition layer and an upper sheet are more fully described in U.S. Patent 4,950,264 issued to Osbron and in U.S. Patent Application 07 / 810,774"Absorbent article having melted layers. ", presented to Cree et al. on December 17, 1991. In a preferred embodiment, the acquisition layer 46 can be joined with the topsheet by any conventional means for joining the wefts together, more preferably by melt bonds as shown in FIG. describe more fully in the Cree application referred to above. Although the primary absorbent member can generally be of any cross-sectional shape, in its unstressed condition, it is preferably rectangular or oval in cross section. The length 40 and the width 41 of the primary absorbent member 40 can be of any convenient dimension. The primary absorbent member 30 is preferably about 2 to 35 cm long, more preferably about 10 to 35 cm long, and most preferably about 20 to 35 cm long. A particularly preferred primary absorbent member 30 has a length of approximately 24 cm. A primary function of the primary absorbent member 30 is to absorb and contain body fluids. This works in combination with the bubble with fluid 31 which rises to the surface facing the body of the primary absorbent member 30 towards the discharge area of the wearer, and, at the same time, due to its friction capacity, is capable of deforming and adapting the surface topography of the primary absorbent member 30 to the topography of the wearer. In addition, the primary absorbent member 30 is preferably dimensioned and deformed such that it will fit within the lips. Accordingly, the width and / or diameter of the primary absorbent member must be sized such that it will receive at least partially within the lips. That is, a portion of the primary absorbent member will preferably fit within the lips during use. Since the exposed female genital organs, including the lips, are generally referred to as soft body tissue, it is important that the materials they comprise and the primary absorbent member be comfortable and relatively soft, such that these are not irritating and / or uncomfortable for the user. The primary absorbent member 30 is preferably about 0.5 to 5 cm wide, more preferably about 0.5 to about 4 cm wide and most preferably about 0.5 to about 3 cm wide. It has been found that a primary absorbent member having a width of between 1.5 and 2.5 cm, preferably of approximately 1.5 cm is able to comfortably fit within, at least, a part of the groove of the lips of most women . With reference to Figures 1 to 3A, the second necessary constituent of the composite sanitary napkin of the present invention is the secondary absorbent member 50. The secondary absorbent member 50 preferably comprises a liquid-permeable upper sheet 52, a liquid-impermeable backsheet 54 joined with the upper sheet 52 and an absorbent element 56 positioned between the upper sheet 52 and the back sheet 54. The upper sheet 52 can be any fluid-permeable material commonly used in sanitary napkins, disposable diapers and the like. This may be any of the materials described above as being useful in the topsheet 32 of the primary absorbent member 30. The absorbent member 56 may be any absorbent material commonly used in sanitary napkins, disposable diapers and the like.

This may be any of the materials described above as being useful in the absorbent core 34 of the primary absorbent member 30. As a practical matter, most of the body fluids not absorbed by and are contained within the absorbent core 34 of the primary absorbent member. A primary function of the secondary absorbent member 50 is to protect the wearer's clothing against staining by the absorbed fluids, which can be expelled from the primary absorbent member with which they can inadvertently deviate from the primary absorbent member. Because the absorbent member 56 of the secondary absorbent member 50 performs a function different from that of the absorbent core 34, the absorbent member 56 can be, and most preferably is, thinner and less bulky than the absorbent core 34. Optionally, the member Secondary absorbent can be manufactured without an absorbent element. Since most, if not all, of the body fluids are preferably absorbed by and are contained within the absorbent core of the primary absorbent member, the secondary absorbent member 50 only needs to protect the user's garments against staining by the amounts of fluid relatively small. Accordingly, an absorbent element may be necessary to contain the fluids within the secondary absorbent member for the purpose of preventing them from staining the wearer's clothing. The backsheet 54 is impermeable to liquids, (eg, menstruation and / or urine, and is preferably manufactured from a thin plastic film although other flexible liquid impervious materials may be used. It interposes between the absorbent member 56 and the wearer's undergarments.The function of the backsheet 54 is to prevent exudates that can be expelled from or which inadvertently deviate from the primary absorbent element and the exudates absorbed and contained within the absorbent element. element aba 56 contact and stain the user's undergarments The backsheet 54 may thus comprise a woven or non-woven material, polymeric films such as polyethylene or polypropylene thermoplastic films, semi-permeable films that provide breathability but prevent transport of liquid or composite materials such as a non-woven material or film coated. Preferably, the backsheet is a polyethylene film having a thickness of from about 0.12 to about 0.015 mm. The backsheet is preferably embossed and / or finished without gloss to provide a more fabric-like appearance. In addition, the backsheet can allow the vapors of the absorbent member 56 to escape (ie, be able to breathe) while still preventing the exudates from passing through the backsheet. Preferably, the secondary absorbent member 50 is provided with a support means or attachment means, such as an adhesive attachment means 58. The adhesive attachment means 58 provides a means for securing the composite sanitary napkin 20 in the crotch portion of the adhesive. the user's undergarment or panties. The adhesive is typically covered with a removable deliberative liner 59 in order to prevent the adhesive from drying or adhering to a different surface of the crotch portion of the panty before being used. Any of the commercially available release liners commonly used for these purposes can be used herein. The composite sanitary napkin 20 of the present invention is used by removing the release liner 50 and subsequently placing the sanitary napkin in a panty, in a manner that the adhesive 58 contacts the panty. The adhesive 58 maintains its position in the sanitary towel within the pant during use. As shown in Figure 1 to 3 the secondary absorbent member may be of generally rectangular shape. Other suitable forms include but are not limited to oval, hourglass, asymmetric dog bone, etc. Referring to Figure 1, the secondary absorbent member 50 preferably has a length 60 and a width 61. The secondary absorbent member is preferably about 20 to 40 cm long, more preferably about 25 to 35 cm long, and very preferably from 30 cm long. Although this may generally be of any cross section in its unstressed condition, the secondary absorbent member is preferably rectangular in cross section. The secondary absorbent member is preferably about 5 to 15 cm wide, more preferably about 5 to 10 cm wide and most preferably about 5 to 8 cm wide. The thickness of secondary absorbent member 50, as shown in the cross section of Figures 2 and 3, is generally a little less than its width. Preferably, the absorbent member will be thin and have a caliper of less than about 3 mm, more preferably less than about 2.6 mm, more preferably less than 2.2 mm, and most preferably less than about 2.0 mm. Optionally, the secondary absorbent member 50 may have two fins 19, each of which are adjacent to and laterally extending from the side edge of the absorbent core, as shown in Figure 4. The fins 19 are configured to drape over the edges of the wearer's panties in the crotch region in such a way that the fins are disposed between the edges of the wearer's panties and the thighs of the wearer. The fins serve at least two purposes, first the fins help to avoid the staining of the body and the wearer's panties by the menstrual fluid, preferably forming a double wall barrier along the edges of the panty. Second, the flaps preferably provide with attachment means on their garment facing surface, such that the flaps can be folded back under the panty and attached to the side facing the garment of the panty. In this way, the fins serve to keep the sanitary towels in their own way in the panties. In a preferred embodiment, the fins are composed of the topsheet, the absorbent element, and the backsheet. In addition, the fins are preferably unitary with the laminates of the secondary absorbent element. In other words, the topsheet, the absorbent element and the backsheet will extend laterally outwards to form the fins. However, the fins need not be unitary with the secondary absorbent member, but may be separate elements that are attached to the secondary absorbent member. In addition, the fins may be comprised of a single substrate or other laminate configurations. However, it is recommended that the fins have a liquid permeable backsheet to prevent the exudates that reach the fins from staining the edges of the wearer's panties. A number of sanitary napkins having suitable or adaptable fins for use with the secondary absorbent member 50 of the composite sanitary napkin 20 of the present invention are disclosed in U.S. Patent 4,687,478 issued Van Tilburg on August 18, 1987; U.S. Patent 4,859,876, issued to Van Tilburg on May 20, 1986; and U.S. Patent 4,608,047 issued to Mattingly on August 26, 1986. Optionally, the secondary absorbent member may comprise components that naturally wrap the sides of a wearer's panties. A sanitary napkin having components that naturally wrap the sides of a wearer's panties, suitable for use with the secondary absorbent member of the composite sanitary napkin 20 of the present invention are disclosed in the United States patent application Serial No. 08 / 096,121, (Case 4961 P & G), entitled "Absorbent article having components of covering of the trousers that naturally surround the sides of the trousers", presented on July 22, 1993, in the name of Lavash et al., And in the United States patent application Serial No. 08/277733 (Case P &G 5354) entitled "Absorbent articles having covering components of the undergarment with zones of extension capacity", filed on July 20, 1994, in the name of Weinberger et al. Preferably, the minimum width of the secondary absorbent member is at least 1.5 times the maximum width of the primary absorbent member. More preferably, the minimum width of the primary absorbent member is at least the maximum width of the primary absorbent member. More preferably, the minimum width of the minimum wide absorbent member of the secondary absorbent member is in the range of about 3 to about 8 times the maximum width of the primary absorbent member. Preferably, the secondary absorbent member is of approximately the same length as the primary absorbent member, while the sanitary composite pad is in an unstressed condition. However, it is quite possible that the secondary absorbent member is longer than the primary absorbent member and still works effectively. The individual components of the absorbent member 30 and the secondary absorbent member 50 may be comprised of components that are extensible or elastically stretchable in the longitudinal and / or lateral direction when the sanitary composite pad is used. Referring now to Figure 1, it can be seen that the primary absorbent member 30 and the absorbent member 50 have their lengths each parallel and in fact corresponding to the longitudinal axis of the sanitary napkins 20. To form the composite sanitary napkin of the present Invention, the primary absorbent member and the secondary absorbent member are fixed by attachment means generally indicated as 70 in Figures 2, 3 and 3A. The precise nature of the joining means is non-material as long as the joining means serves to join the primary absorbent member and the secondary absorbent member in the composite sanitary napkin of the present invention with sufficient tenacity that the primary absorbent member and the absorbent member secondary do not disconnect during use. Bonding means such as adhesive bonding with well-known thermal and pressure sensitive adhesives are very satisfactory. The primary absorbent member 30 can thus be secured to the secondary absorbent member by the attachment means, such that the fixed length is approximately at least 25% of the length of the primary absorbent member 30, preferably the fixed length is at least 50% of the length of the primary absorbent member 30, more preferably 75%; even more preferably the primary absorbent member 30 is attached to the secondary absorbent member 50 by the attachment means 50 which extend along substantially the entire length of the primary absorbent member 30. The primary absorbent member 30 has a width 41. The towel The sanitary composite has a width of the bonding means 541. The bonding means 541 is smaller than the smaller width of the primary absorbent member 309. Preferably, the width of the bonding means 541 is less than 75% of the width of the primary absorbent member 30. More preferably, the width of the joining means 541 is less than 50% of the width of the primary absorbent member 30. More preferably the width of the joining means 541 is less than 25% of the width of the primary absorbent member 30. Preferably, the absorbent member primary exhibits, a "stationary resistance" enough to provide increased performance. As used herein, the term "stationary resistance" refers to the existence exhibited by the primary absorbent member at the forces applied to the primary absorbent member within the central region, such that the side edges of the primary absorbent member do not extend further. beyond the side edges of the secondary absorbent member. In other words, the stationary resistance describes the relative movement of the primary relative member compared to the secondary absorbent member. It is preferred that the side edges of the primary absorbent member not extend beyond the side edges of the secondary absorbent member still under, typically the forces of use. Maintaining the side edges of the primary absorbent member within the side edges of the secondary absorbent member, typically under the forces of use, is substantially reduced by the opportunity for the fluid to bypass or be ejected from the primary absorbent member and on a different surface of the member. secondary absorbent, for example, the wearer's skin or undergarments. Referring now to Figures 5, there is shown another preferred embodiment of a composite sanitary napkin 20 of the present invention the primary absorbent member 30 has a length 40 that is less than the length 60 of the secondary absorbent member 50.; the bubble with fluid 31 will therefore have a length no greater than the length of the primary member 30. Any other element of this mode is similar to what has already been described with reference to Figures 1 to 3. In Figures 3 you can see that the upper sheet 32 completely encloses the absorbent core 34 of the primary absorbent member 30. In this embodiment, the upper sheet 32 for the primary absorbent member 30 is separate and distinct from the upper sheet 52 for the secondary absorbent member 50. Optionally, the top sheet for the primary absorbent member 30 and the secondary absorbent member 50 can be made from a single web of material, such as the topsheet 100 as shown in Figure 6. In this embodiment, the topsheet 100 is used for the top sheet on both the primary absorbent member 30, and the secondary absorbent member 50. In the embodiment of Figure 6, the topsheet 100 can serve as a top sheet. connecting edio 70 connecting the primary absorbent member and the secondary absorbent member together. The composite sanitary napkin may also include additional attachment means for connecting the primary absorbent member to the secondary absorbent member. The width of the joining means 541 is less than the width 41 of the primary absorbent member 30. In Figure 7, a further embodiment of the present invention is shown, in which, the bubble with fluid 31 is comprised between the absorbent member primary 30 and secondary absorbent member 50 of sanitary napkin 20; in this case, the attachment means 70, which fix the primary absorbent member 30 to the secondary absorbent member 50 may also comprise the bubble with fluid 31, which is preferably attached to the secondary absorbent member 30 along its total length, if the bubble with fluid 31 has the same length of the primary absorbent member 30. Otherwise, if the bubble with fluid 30 is shorter than the primary absorbent member 31 and extends for example, substantially along the central region of the sanitary napkin, the primary absorbent member 31 may be attached at its ends directly to the secondary absorbent member 50, while it is totally, partially or not at all fixed to the bubble with fluid 31. Figure 8 shows another preferred embodiment of the present invention, wherein the bubble with fluid 31 is comprised within the secondary absorbent member 50, more precisely between the upper sheet 52 and the absorbent element. e 56 of the secondary absorbent member 50. Referring now to Figure 9, there is shown another preferred embodiment of the present invention. The primary absorbent member 131 and the secondary member 150 are integrally made from a single member approximately 156 by means of two Z-shaped bends 160 parallel to the longitudinal axis of the sanitary napkin 20; the upper sheet 200 used for the upper sheet in both the primary absorbent member 130, and in the secondary absorbent member 150. In the embodiment of Figure 9, the absorbent member 156 and the upper sheet 200 can serve as attachment means 70 which connect the primary absorbent member 130 and the secondary absorbent member 150 together. As shown in Figure 9 the bubble with fluid 31 can be enclosed by the top of the fold Z of the absorbent element 156.

Claims (2)

1. - A disposable absorbent article composed for use adjacent to a discharge area of the body, the article having a surface facing the body, a surface facing the garment, a longitudinal axis and a lateral axis, a primary absorbent member having a length and a width and a secondary absorbent member having a length and a width, said primary absorbent member and said secondary absorbent member having their lengths each parallel to the longitudinal axis, the secondary absorbent member being closer to the surface than the garment facing the garment that the primary absorbent member, the primary absorbent member being attached to the secondary absorbent member by attachment means, characterized in that the article further comprises a flexible bubble with fluid to elevate the surface facing the body towards said body. download area.

2. A disposable absorbent article composed, according to claim 1, characterized in that the bubble with fluid is a bubble with gas, and preferably a bubble with air. 3 - A disposable absorbent article composed in accordance with any preceding claim, characterized in that the bubble with fluid is longer along the longitudinal axis than along the lateral axis and does not extend beyond the periphery of the primary absorbent member. 4. An absorbent article composed in accordance with any preceding claim, characterized in that the bubble with fluid is placed inside the secondary absorbent member. 5. A disposable absorbent article composed in accordance with any preceding claim, characterized in that the bubble with fluid is placed inside the primary absorbent member. 6. A disposable absorbent article composed in accordance with any preceding claim, characterized in that the width of the secondary absorbent member is equal to or greater than the width of the primary absorbent member. 7. A disposable absorbent article composed in accordance with any preceding claim, characterized in that the minimum width of the secondary absorbent member is at least 1.5 times, and preferably from 3 to 8 times the maximum width of the primary absorbent member. 8. An absorbent article composed in accordance with any preceding claim, characterized in that the maximum width of the primary absorbent member is less than 3 cm. 9. A disposable absorbent article composed in accordance with any preceding claim, characterized in that the primary absorbent member is fixed to the secondary absorbent member by attachment means and the fixed length is at least 25% of the length of the primary absorbent member , along the longitudinal axis, preferably it is at least 50% and most preferably the joining means extend substantially continuously along the length of the primary absorbent member. 10. An absorbent article composed in accordance with any preceding claim, characterized in that the primary absorbent member and the secondary absorbent member are made integrally from a single absorbent element, preferably, by means of two Z-shaped folds parallel to each other. longitudinal axis of said article.