CZ46397A3 - Compound sanitary pad - Google Patents

Abstract

A compound sanitary napkin including a primary absorbent member and a secondary absorbent member. The primary absorbent member has a length and width. The secondary absorbent member has a length and a width. The primary absorbent member and the secondary absorbent member have a common length. The primary absorbent member preferably includes an absorbent core and a fluid pervious topsheet superposed on the absorbent core. The secondary absorbent member preferably includes a fluid pervious topsheet, a fluid impervious backsheet joined to the topsheet and an absorbent element positioned between the topsheet and the backsheet. The primary absorbent member is affixed to the secondary absorbent member by union means. The width of the secondary absorbent member is at least 1.5 times the width of the primary absorbent member.

Description

Technical field

The invention relates to disposable sanitary napkins. As discussed herein, sanitary napkins are considered to be absorbent devices designed to be worn outside the female body, usually during menstrual periods, and to receive and retain menses and other vaginal secretions. These disposable products are not intended to be reused after use and contamination.

BACKGROUND OF THE INVENTION

In their simplest form, disposable sanitary napkins comprise an absorbent element (sometimes called an absorbent core) disposed between a permeable body contacting element (sometimes called a topsheet or wrapper) and an impermeable protective barrier (sometimes called a backsheet).

The absorbent element is self-evident and maintaining menses and other contacting elements is less comfortable and dry contact allows for free passage. The protective barrier is intended to receive vaginal discharges. The body will provide more or more body surfaces and at the same time fluid to the absorbent element that will prevent menses or other vaginal outflows that are repelled from the absorbent element to contaminate the wearer's undergarments.

In addition to the three functional elements mentioned above, disposable sanitary napkins are generally provided with means to support the device adjacent the crotch of the wearer, even when moving, where they can best perform their intended function. The sanitary napkins are typically provided with adhesive attachment means to secure the device to the inner crotch surface of the wearer's undergarments.

Although the prior art sanitary napkins perform their intended function, each traditional design suffers from more or less certain drawbacks in absorbing body fluids, protecting the wearer's undergarments from contamination, and / or the physical comfort of the wearer.

With respect to disposable sanitary napkins, at least two of their general classes currently exist. Their first class is characterized by being intended to absorb moderate to strong menstrual flows. These sanitary napkins offer a relatively high absorption capacity. The absorbent capacity is generally achieved by providing the sanitary napkin with a relatively thick and bulky absorbent member. Although they have a relatively large absorbent capacity, the bulkiness of the absorbent member may cause some degree of discomfort when worn.

The second class of sanitary napkins is intended for weak or small menstrual flows and is commonly referred to as panty liners or pantyliners. Sanitary napkins of this class as a group are thinner, somewhat more flexible and generally more comfortable than those of the first class. However, second class sanitary napkins typically lack the absorbent capacity of the first class sanitary napkins.

One attempt to provide the benefits of the above two categories of sanitary napkins to a single, compound sanitary napkin is disclosed in commonly assigned U.S. Patent No. 4,425,130, issued to DesMarai ow on January 10, 1984. This composite Destlaraise sanitary napkin comprises a primary sanitary napkin. and panty protector. interconnected at their respective ends in such a manner that the two forming elements are free to move towards each other along substantially their entire length. The primary sanitary napkin is intended to absorb the volume of body fluid expelled by the user, while the panty protector is intended to protect the wearer's underwear from contamination. In use, the relative freedom of movement between the primary sanitary napkin and the panty protector serves to maintain the primary sanitary napkin adjacent the crotch region of the wearer while the panty protector remains associated with the wearer's undergarment. Although the relative unrestricted movement between the primary sanitary napkin and the panty protector serves to maintain the primary sanitary napkin at the crotch region of the wearer, freedom of movement may lead to lack of stability when the primary sanitary napkin moves laterally beyond the side edges of the panty protector, providing opportunity for soiling. user's laundry.

In addition, the relative unrestricted movement between the primary sanitary napkin and the panty liner itself may be insufficient to trap body fluids that are found in the user's vaginal opening. The primary sanitary napkin is preferably narrow enough to rest at least partially within the external genitalia. Optionally, the primary sanitary napkin may be wider than the distance between the labia majora (labia), but exhibits lateral compression or fit under relatively small forces such as those exerted by the soft tissue of the external female genitalia so that part of the primary sanitary napkin may rest at least partially inside the female external genitals. Because of its relatively low forces, the primary absorbent member remains comfortable to wear. In addition, the primary sanitary napkin preferably exhibits resilient recovery to allow the sanitary napkin to adapt to the body when the liner-body interface is subjected to shape changes.

When the primary sanitary napkin is made narrower to fit the body, the panty protector preferably remains wide enough to provide a stable attachment to the wearer's undergarment and to adequately cover the undergarment to protect it from contamination.

SUMMARY OF THE INVENTION

The invention relates to a body-fitting, folded sanitary napkin. The composite sanitary napkin comprises a primary and a width, and a secondary width, of the primary absorbent member having a common absorbent member having a length of the absorbent member having a length and the member and a secondary absorbent length. The primary absorbent member comprises an absorbent core and a fluid-permeable topsheet disposed on the absorbent core. The secondary absorbent member comprises a fluid-permeable topsheet, a fluid-impermeable backsheet attached to the topsheet positioned between the topsheet, and the absorbent member is joined by connecting means to the secondary absorbent member. The width of the secondary absorbent member is preferably at least 1.5 times greater than the width of the primary absorbent member. Optionally, the width of the secondary layer and the absorbent element is a backsheet. Primary Absorbent Components Primary Absorbency times greater than Width Optionally, the width of the secondary at least 2 absorbent members is in the range of about 3 to about 8 times greater than the width of the primary absorbent member.

Preferably, the primary absorbent member is attached to the secondary absorbent member by connection means such that the longest unattached distance between adjacent attachment points is less than 75fc of said common length. Optionally, the primary absorbent member is attached to the secondary absorbent member by fasteners in such a way that the longest unattached distance between adjacent attachment points is less than 50% of said common length. Optionally, the primary absorbent member is attached to the secondary absorbent member by connection means such that the longest unattached distance between adjacent attachment points is less than 25% of said common length. Optionally, the primary absorbent member is attached to the secondary absorbent member by connection means extending substantially along the entire common length.

Optionally, the secondary absorbent member includes adhesive attachment means for securing the folded sanitary napkin in the crotch portion of the undergarment. Optionally, the primary absorbent member comprises a resilient member. Optionally, the primary absorbent member comprises a fluid barrier. Optionally, the primary absorbent member may comprise two or more segments.

Overview of the drawings

Although the description is terminated by the claims specifically indicating and clearly claiming the present invention, it is believed that the invention will be better understood from the following description, taken in conjunction with the accompanying drawings, wherein like reference numerals designate like elements and wherein:

Giant. 1 is a plan view of one embodiment of the compound sanitary napkin of the present invention.

Giant. 2 is a side view of the folded sanitary napkin of FIG. 1.

Giant. 3 is a cross-sectional view of the compound sanitary napkin of FIGS. 2 and 2 taken along line 3-3 of FIG. 2.

Giant. 3A is a cross-sectional view of another embodiment of the compound sanitary napkin of the present invention.

Giant . 4 - shows a plan view of another embodiment of the compound sanitary napkin of the present invention. Giant C shows a plan view of a further embodiment of the sanitary napkin of the present invention. Giant . . 6 - shows a cross-section of another embodiment of the compound sanitary napkin of the present invention. Giant . 6A - shows a cross-section of another embodiment of the compound sanitary napkin of the present invention. Giant . 7 a δ - show simplified views of the test procedure stable resistance. Giant . . 9 - shows a cross-section of another embodiment of the compound sanitary napkin of the present invention. Giant, 10 - shows a cross section along the longitudinal axis of the compound hygiene of the invention. Giant. 11 - shows a cross-section of another embodiment of the compound sanitary napkin of the present invention. Giant. 12 - shows a cross section along the longitudinal axis of the composite sanitary napkin of the present invention. Giant . 13 - shows a cross-section of another embodiment of the compound sanitary napkin of the present invention. Giant. 14 - shows a side view of another embodiment of the compound sanitary napkin of the present invention. Giant. 15 - shows a side view of another embodiment of a compound sanitary napkin. Giant. 16 - shows a side view of another embodiment of the compound sanitary napkin of the present invention. Giant. 17 - shows a plan view of the folded sanitary napkin of FIG.

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DETAILED DESCRIPTION OF THE INVENTION

The present invention is a body-fitting, folded sanitary napkin exhibiting body fluid absorbency, underwear protection from contamination, and physical comfort to the wearer. The term sanitary napkin as used in this material refers to a product worn by women adjacent to the pubic region and intended to absorb and contain various body exudates (eg blood, menses and urine) that are intended to be disposed of after a single use (ie , does not count on its washing or other recovery or reuse). The term composite sanitary napkin as used herein refers to a sanitary napkin comprised of separate components joined together to form a unit structure. Interlabial devices resting partly inside and partly outside the wearer's vestibule are also within the scope of this invention. As used herein, the term pubic (pudendal) refers to the external visible female genitalia and is limited to labia major, labia minora, kliktoris and vestibule.

In FIG. 1 * 3, one preferred embodiment of the compound sanitary napkin 20 of the present invention is shown. As seen in FIG. 1-3, the folded sanitary napkin 20 comprises a primary absorbent member 30 and a secondary absorbent member 50 joined together by connection means 70.

The composite sanitary napkin has two surfaces, a body-contacting or face-facing surface, and a garment-contacting or facing surface. The primary absorbent member and the secondary absorbent member each have a corresponding surface facing the body and the undergarment. The composite sanitary napkin 20 has two central axes, a longitudinal central axis and a transverse axis. The term longitudinal as used herein refers to a line, axis, or direction in the plane of the folded sanitary napkin that is generally aligned with (e.g., approximately parallel to) the vertical plane of the bisector standing on the left and right body halves when the folded sanitary napkin. inlay worn. 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 side edges 24 and end edges 25 that together form the periphery 26 of the primary absorbent member. The secondary absorbent member 50 has side edges 21 and end edges 22 that together form the periphery 23 of the secondary absorbent member and the composite sanitary napkin 20. The composite sanitary napkin 20 has a first end region 27, a central region 28, and a second end region 29.

The primary absorbent member 30, as implied by its name, is a constituent of the pad 20 intended to absorb the volume of body fluids secreted by the user. The primary absorbent member 30 comprises absorbent means 33 such as an absorbent core 34 and a liquid pervious topsheet 32 wrapped on the absorbent core 34.

The topsheet 32 is preferably conformable, soft feeling and non-irritating to the wearer's skin. Further, the topsheet 32 is liquid pervious allowing fluid to readily penetrate through its thickness. A suitable topsheet 32 may be manufactured from a wide variety of materials such as woven and nonwoven materials; polymeric materials such as apertured formed thermoplastic films, perforated plastic films, and hydroformed thermoplastic films; porous foams, reticulated foams, reticulated thermoplastic films and thermoplastic scrims. Suitable woven and nonwoven materials may be comprised of natural fibers (eg, wood or silk), synthetic fibers (for example, polymer fibers such as polyester, polypropylene or polyethylene), or a combination of natural and synthetic fibers. A preferred topsheet comprises an apertured formed film. The apertured formed films are preferred for the topsheet because they are permeable to body exudates and still non-absorbent and have a reduced tendency to allow liquids to pass back and rewet the wearer's skin. Thus, the surface of the formed film that is in contact with the body remains dry, thereby reducing body contamination and creating a more comfortable feel for the wearer. Suitable formed sheets are described in U.S. Patent 3,929,135 issued to Thompson on December 30, 426, issued to Mullane et al. 13 4,342,314 issued to Radel et al

1975, U.S. Pat. No. 4,324, 1982, U.S. Pat., Aug. 3, 1982, al. July 31, 1984, 9. August, 1991.

No. 4,463,045 and Ahr et al. 5,006,394 issued to Baird. Each of these patents is incorporated herein by reference. A preferred topsheet for the primary absorbent member of the present invention is a molded film described in one or more of the patents above and sold to sanitary napkins by the Procter & Gamble Company of Cincinnati, Ohio under the trademark DRI-WEAVE. the topsheets of the formed film are hydrophilic so that they pass faster through the topsheet than if they were not hydrophilic to reduce the likelihood that menstrual fluid will flow from the topsheet rather than flow into it and be absorbed by the absorbent core. In a preferred embodiment, a surface active agent such as described in U.S. Patent Application Serial No. 07 / 794,745, entitled Absorbent Article with a Nonwoven and Perforated Film Lining, filed November 19, 1991, is incorporated into the polymeric materials of the topsheet of the formed film. Aziz et al., Incorporated herein by reference. Alternatively, the surface of the topsheet body may be rendered hydrophilic by treating it with a surfactant, as described in U.S. Pat.

Osborn August 21, 1990, incorporated here by reference.

The topsheet 32 may be associated with the absorbent core 34 in any suitable manner. Suitable methods are, but are not limited to, bonding the topsheet 32 to the absorbent core 34 by spraying with glue or applying lines or adhesive points between the topsheet 32 and the absorbent core 34.

Alternatively, or in addition, the topsheet 32 may be associated with the absorbent core 34 by entangling the fibers of the absorbent core 34 with the topsheet 32, fusing the topsheet 32 to the absorbent core 34 by plurality of discrete individual fusions, or by any means known in the art.

In order to ensure appropriate fluid transfer between the topsheet 32 and the absorbent core 34, it is preferred that the topsheet be substantially continuously attached to the underlying absorbent core 34 along their common connection or interface. By substantially continuously attaching 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. Separation of the absorbent core from the topsheet 32 can prevent fluid transfer from the topsheet 32 to the underlying absorbent core. of the core 34.

The absorbent core 34 may be any absorbent means that is generally compressible, conformable, flexible, non-irritating to the wearer's skin and capable of absorbing and retaining body exudates. The absorbent core 34 may be manufactured from a wide variety of liquid absorbent materials commonly used in disposable sanitary napkins and other absorbent disposable articles. Examples of suitable absorbent materials include comminuted wood pulp (generally referred to as airfelt), crepe cellulose wadding, modified cross-linked cellulose fibers (such as those described in U.S. Patent No. 5,217,445, issued to Young et al. On June 8, 1993). capillary ducts (i.e., fibers having intracellular capillary ducts such as those described in U.S. Patent 5,200,246, issued to Thompson on April 6, 1993), absorbent foams (such as those described in U.S. Patent 5,260,345, issued to DesMaraise et al. on November 9, 1993 and U.S. Patent 5,268,224, issued to DesMaraise et al. on December 7, 1993), thermally bonded airlaid materials (such as those described in U.S. Patent Application Serial No. 08 / 141,156). , named Catamenius absorbent structures with thermally bonded layers for better management of menstrual fluids and their use in sanitary napkins having improved seating and comfort, filed on behalf of Richards et al. on October 21, 1993 (Case P&G 6051), absorbent sponges, synthetic staple fibers, polymer fibers, hydrogel-forming gel compositions, peat moss, or any equivalent materials or combinations thereof.

Suitable absorbent cores containing foams are described in U.S. Pat. Nos 07/743 839, 07/743 950, 07/743 947 and 07/830 159 (Case P&G Nos 4451, 4452, 4453 and 4453R), with the first, third and fourth applications in the name of DesMaraise et al. , and the second application in the name of Young et al. The first three applications were filed on August 12, 1991, and the fourth on February 12, 1992. Additional cores containing foams are described in European application 0 293 208 BI. Absorbent cores containing sponges are described in U.S. Patent Nos. 3,512,530, and 3,954,493, and in French Patent 2,220,827,

The total absorbent capacity of the absorbent core 34 should be compatible with the intended loading of the composite sanitary napkin 20. Furthermore, the absorbent capacity of the absorbent core 34 may be varied to accommodate the expected amount of fluid exudate fluid. For example, different absorbent capacity will be used for composite sanitary napkins intended for daily use as compared to those per night, or for composite sanitary napkins intended for use by teenagers as compared to adult women.

The materials selected for use on the absorbent core 34 are preferably compliant, soft, conformable, compressible, and resilient to improve fit to the body and comfort of the primary absorbent member. Preferably, the absorbent core is compressible such that the primary absorbent member will deform under relatively small forces occurring during normal use. In addition to compressibility, the materials contained in the absorbent core are preferably adaptable so that the primary absorbent member is capable of providing improved fit to and around the labia and perineum. Although it is generally compressible and adaptable under relatively small forces, the fluid transfer forces without allowing the absorbent member.

4452, 4453 and 4453R), developed by the female outer genitalia when worn, it is also important that the primary absorbent member be sufficiently flexible that it will not permanently collapse when subjected to normal wear forces. Preferably, the primary absorbent member is sufficiently resilient to conform to the contours of the body to ensure intimate contact with the exposed genitalia of the female user. Tight contact with the exposed female genitalia helps to provide better away from the user to the primary absorbent member, bypassing and / or run down the primary While the elastic characteristics of the absorbent core 34 allow improved fit, they need to be balanced against the need for the product to be both soft and comfortable for the wearer.

In the embodiment of FIG. 3, the absorbent core 34 is comprised of airfelt. The core is made in a shape to provide a primary absorbent cylindrical shape.

In FIG. 3A is a cross-sectional view taken along a transverse axis of yet another embodiment of the compound sanitary napkin of the present invention. In this embodiment, the absorbent core 34 preferably consists of an absorbent foam such as those described in the above-cited U.S. patent application Ser. C

07/743 950, 07/743 947 and 07/830 159 (case P with the first, generally cylindrical component, overall

07/743 839, & G no. 4451, the third and fourth applications filed in the name of DesMaraise et al. And the second application filed in the name of Young et al. The absorbent foam core is folded or rolled to have an overall circular cross section. The folded core provides the primary absorbent member 30 with a generally cylindrical shape.

Although the core 34 shown in FIG. 3 and a circular cross-section, the absorbent core may be of a wide variety of shapes such as rectangular, rectangular, oval, square, pentagonal, U-shaped, folded into a Z, and the like.

Optionally, the primary absorbent member 30 may comprise a resilient member 45 as shown in FIG. 3A. The resilient member 45 may comprise a single component or a plurality of individual parts. Suitable materials for use on the resilient member 45 include, but are not limited to, nylon, polypropylene, polyurethane, polyethylene, polyester, synthetic rubber and other synthetic materials such as molded films, or natural materials such as rubber, sponges and the like, or any suitable material , which is able to withstand collapse under normal wear conditions of the sanitary napkin. The resilient member 45 may be manufactured in a wide variety of shapes such as rectangular, triangular; oval, square, pentagonal, U-shaped, folded into Z, etc.

The resilient member 45 may extend over the entire length of the primary absorbent member 30. The resilient member 45 may extend only over a portion of the length of the primary absorbent member 30. The resilient member 45 may be positioned between the first end region 27, the central region 28, the second end region 29, or any combination above. For example, the resilient member 45 may be positioned either in the first end region 27 or the second end region 29 of the primary absorbent member, both in the first end region 27 and the second end region 29 of the primary absorbent member, or in the central region 28 and end regions 27. ., Primary absorbent components,

Optionally, the primary absorbent member 30 may comprise a fluid barrier 35. The fluid barrier 35 tends to contain absorbed fluid within the absorbent core 34 and may be constructed of materials having the same liquid impervious backsheet properties as the secondary absorbent members 50 described below.

Optionally, the primary absorbent member 30 may include a acquisition layer 46 disposed between the topsheet 32 and the absorbent core 34. The acquisition layer 46 may serve several functions, including improved leakage of exudates and woven polyester, through and into the absorbent core 34. Improving leakage of exudates provides the acquisition layer. more even distribution of exudates through the absorbent core. The acquisition layer 46 may be comprised of several different materials, including non-woven synthetic fiber structures. containing polypropylene or polyethylene; natural fibers containing cotton or cellulose; mixtures of these fibers; or any equivalent materials and combinations thereof. Examples of sanitary napkins having a receiving layer and a topsheet are described in more detail in U.S. Patent No. 4,950,264 issued to Osborn and U.S. Patent Application Serial No. 07 / 810,774, Melted Layer Absorbent Product, December, 1991, named Cree. et al. Each incorporated by reference.

filed 17th reference is here the acquisition layer 46 by traditional means

In a preferred embodiment, it may be bonded to the topsheet by any of the bonding structures together, most preferably by fusing joints, as described in more detail above by reference to the Cree application.

Although the primary absorbent member 30 may generally be of any cross section in its unloaded state, it is preferably circular or oval in cross section. The length 40 and width 41 of the primary absorbent member 30 may have any suitable dimension. The primary absorbent member 30 is preferably 2 to 35 cm long, more preferably from 10 to 35 cm, and most preferably from about 20 to 35 cm long. A particularly preferred primary absorbent member 30 has a length of about 24 cm. The primary absorbent member 30 is preferably 0.5 to 5 cm wide, more preferably from wide, and most preferably from about 0.5 to about 0.5 to about 4 cm to about 3 cm wide.

Referring now to the folded hygiene in FIG. 1-3A, the second essential component of the insert of the present invention is the secondary absorbent member 50. The secondary absorbent member 50 preferably comprises a liquid pervious topsheet 52, a liquid impervious backsheet 54 associated with the topsheet and absorbent member 56 positioned between the topsheet in the diapers described above and backsheet 54.

The topsheet 52 may be any fluid-permeable material commonly used in sanitary napkins, one-time. It may be of any material useful in the topsheet 32 of the primary absorbent member 30.

A preferred topsheet 52 comprises an apertured formed film. The apertured formed films are preferred for the topsheet because they are permeable to body exudates and still non-absorbent and have a reduced tendency to allow liquids to pass back and rewet the wearer's skin. Thus, the surface of the formed film that is in contact with the body remains dry, thereby reducing body contamination and creating a more comfortable feel 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. April 13, 1982;

342,314 issued to Radel et al. August 3,

US 4,463,045 issued to Ahr et al. 31.

and in U.S. Patent No. 5,006,394 issued to Baird, the reference is incorporated herein by reference, the primary absorbent component layer of the present invention being a molded film described in one or more of the patents above and sold to sanitary napkins by the Procter & Gamble Company of Cincinnati, Ohio under DRI-WEAVE.

U.S. Pat. No. 4,182; in July, 1984; 9. August, 1991.

Each of these preferred top

The absorbent member 56 may be any absorbent material commonly used in sanitary napkins, disposable diapers and the like. It may be any material described above as useful in the absorbent core 34 of the primary absorbent member 30.

In practice, most body fluids are absorbed and retained by the absorbent core of the primary absorbent member.

One of the main functions of the secondary absorbent member 50 is to protect the wearer's underwear components from contamination absorbed by the exudates. which may be repelled from the primary absorbent member or which inevitably bypass the primary absorbent member. Since the absorbent member 56 of the second absorbent member 50 performs a different function than the absorbent core 34, the absorbent member 56 may be, and preferably is, somewhat thinner and less bulky than the absorbent core 34.

Since the absorbent member 56 has different requirements than the absorbent core, it can be formed from different materials. For example, single or multiple layers of paper fabric as commonly used in paper towels or toilet papers may be used to form the absorbent element. Preferably, the absorbent element is formed from from about 1 to about 5 layers of paper web.

Preferably, the total absorbent capacity of the absorbent member 56 is somewhat less than that of the absorbent core 34. Since the absorbent core 34 is predicted to absorb most or substantially all of the body fluids during use, its absorbent capacity will be somewhat, if not significantly greater than such as the absorbent element 56.

A paper web comprising one or more layers having a basis weight of from about 24 to about 48 grams per square meter and a density (specific gravity) of from about 0.10 to about 0.12 grams per cubic centimeter as produced by the process described in U.S. Pat. No. 3,301,746, issued to Sanford and Sisson on January 31, 1967, incorporated herein by reference, which has been found to be completely satisfactory for use in absorbent member 56. Wet strength resins and latex binders may be and preferably are used to provide additional strength of the paper web used in the absorbent element.

A paper fabric made by the process described in U.S. Patent No. 3,994,771 issued to Morgan et al. On Nov. 30, 1976, and incorporated herein by reference, may also be used with good results as an absorbent member 56.

Optionally, the secondary absorbent member may be made without the absorbent member. Since most, if not all, body fluids are preferably absorbed and retained within the absorbent core of the primary absorbent member, the secondary absorbent member 50 only needs to protect the wearer's undergarments from contamination with relatively small amounts of fluids that may be repelled from the primary absorbent member or bypass the primary absorbent member. Accordingly, since the expected amounts of fluids that may come into contact with the secondary absorbent member are relatively small, the absorbent member may not be necessary to retain fluids within the secondary absorbent member and prevent them from contaminating the wearer's undergarments.

The backsheet 54 is liquid impervious (e.g., menses and / or urine) and is preferably made of a thin plastic film, although other resilient liquid impervious materials may also be used. As used herein, the term flexible refers to those materials that are compliant and easily conform to the overall shape and contours of the human body. In use, the backsheet 54 is disposed between the absorbent member 56 and the wearer's undergarment. The function of the backsheet 54 is to prevent exudates that may be repelled or irreversibly bypass the primary absorbent element and to contact and absorb the underwear absorbed and retained in the absorbent element 54. The backsheet 54 may thus consist of a woven or nonwoven material, polymeric films such as thermoplastic films of polyethylene or polypropylene, or composite materials such as a film-coated nonwoven material. Preferably, the backsheet is a polyethylene film having a thickness of from about 0.012 mm (0.5 mils) to about 0.051 mm (2.0 mils). Exemplary polyethylene films are manufactured by Clopay Corporation of Cincinnati, Ohio under the designation P18-0401 and Ethyl Corporation, Visqueen Division of Terre Haute, Indiana under the designation XP-39385. The backsheet is preferably embossed and / or matte coated to provide a more fabric appearance. Further, the backsheet may allow vapor to escape from the absorbent member 56 (i.e., breathable). however, it still prevents the exudates from passing through the bottom layer.

The secondary absorbent member 50 is preferably provided with support means, such as attachment means 58. Adhesive attachment means 58 provide means for securing the folded sanitary napkin 20 in the crotch portion of the wearer's undergarment or panties. Thus, part or all of the exterior of the garment surface 55 of the backsheet 54 is covered with adhesive. In a preferred embodiment, at least a portion of the adhesive 58 is disposed on the garment side 55 of the backsheet 54, adjacent the longitudinal side edges 21 of the secondary absorbent member. Any adhesive used in the art for these purposes may be used herein, preferably for a self-adhesive adhesive. Suitable adhesives are Century A-3O5-IV, manufactured by Century Adhesives Corporation of Columbus, Ohio; and Instant Lock 34-2823, manufactured by National Starch and Chemical Company of Bridgewater, NJ. Suitable adhesive fasteners are also described in U.S. Pat. No. 4,917,697. Before placement in place, the self-adhesive adhesive is typically covered with a removable release cover 59 to protect the adhesive from drying or adhering to a surface other than the crotch region of the panties before use. Suitable release caps are also described in the aforementioned U.S. Patent 4,917,697. Any commercially available release caps may be used herein. Non-limiting examples of suitable release liners are BL30MG-A Silox Ε1 / 0 and BL30MG-A Silox 4P / 0, both manufactured by Akrosil Corporation of Henasha, WI. The folded sanitary napkin 20 of the present invention is used by removing the release cap 50 and then placing it in the panty such that the adhesive 58 contacts the panty. The adhesive 58 keeps the sanitary napkin in position in the panties during use.

The secondary absorbent member of the present invention is preferably relatively thin and flexible. The secondary absorbent member may have a diameter of about 1.9 mm. The diameter (or tactile strength) of the secondary absorbent member, or different regions thereof, is determined by the following test.

A thickness comparator is used, and in particular Ames, Model 130 with a Model 482 dial indicator, from BC Ames Company of Waltham, Massachusetts. The thickness comparator should have a circular foot made of aluminum weighing 10.0 grams and a contact area of 5.15 cm ² . The thickness comparator is reset to zero. The 80.0 grams of stainless steel is placed on the spindle extending above the Comparator Dial. The comparator foot is raised and the secondary absorbent member, with any adhesive cover paper removed, has adhesive sprayed with corn starch, and the secondary absorbent member is placed on the base plate with the garment surface facing down. The secondary absorbent member is positioned on the base plate such that when the bead is moved (lowered) down, there is in the region of the secondary absorbent member for which measurement is required. Try to smooth out the secondary absorbent and avoid wrinkles on it. Gently lower the shoe onto the secondary absorbent. Determine the secondary absorbent member diameter by reading the comparator dial 30 seconds after the bead has come into contact with the secondary absorbent member.

Preferably, the secondary absorbent member will have a diameter of less than 3.0 mm, more preferably less than 2.6 mm, more preferably less than about 2.2 mm, and most preferably less than about 2.0 mm.

The primary absorbent member of the present invention is preferably relatively adaptable. It is preferred to keep the primary absorbent member relatively adaptable so as to fit easily in use in the labial groove. It has been found that a primary absorbent member having a width and a diameter dimension of about 3/8 inches (about 1 cm) can comfortably fit inwardly.

sit within at least a portion of the labial groove. Although the primary absorbent members are described above as having width or diameter dimensions greater than 3/8 inches (about 1 cm), they may also have a labial groove if they are sufficiently unnecessary for the entire primary absorbent member to fit within the labial groove but at least a portion The absorbent member preferably has the ability to sit therein. The conformability of the primary absorbent member, or various portions thereof, is determined by the following test.

Preferably, a computer controlled tensile tester, namely EME, Model 599A, is available from ΕΜΕ, Inc. of Newbury, Ohio, but other tensile testers may also be used. The tensile tester of surfaces produced by the Primary Absorbent should have a pair of circular aluminum contact and a diameter of 4.0 cm. the component is placed on a lower contact surface with one of its side edges resting downwardly and an opposing side edge facing upwardly on the upper contact surface. The instrument is reset. The top contact surface is lowered until there is a 3/8 inch distance (about 1 cm) between the two opposite surfaces. To determine the force that is exerted on the primary absorbent member is taken

conformation figure at 3/8 inch (about 1 cm). ex Primary the absorbent member may have a conformation 3/8 inches (about 1 cm) less than about 1.0 dogs (about 0.07 kg / cm-), Preferred will have primary absorbent component conformation at 3/8 inch (about 1 cm) less than about 0.5 dogs (as i 0.035 kg / cm ² ), more preferably less than about 0.25 psi (about 0.017 kg / cm-), and most preferably less than 0.1 psi (about

0.007 kg / cm @ -1).

As shown in FIG. 1-3, the secondary absorbent member may have a generally rectangular shape. Other suitable shapes include, but are not limited to, oval, hourglass, dog bone, asymmetric, etc.

The secondary absorbent member 50 may optionally have two flaps 58, each adjacent to and extending laterally from the side edge of the absorbent core, as shown in FIG. 4, the flaps 58 are configured to pleat over the edges of the wearer's panties in the crotch region such that the flaps are disposed between the edges of the panties and the thighs of the wearer. These flaps serve at least two purposes. First, the flaps help prevent contamination of the wearer's body and panties by menstrual fluid, preferably by forming a double-wall barrier along the edges of the panties. Second, the flaps are preferably provided on their garment surface with fastening means so that the flaps can be folded back under the panty and fastened to the garment facing side of the panty. In this way, the flaps serve to maintain the sanitary napkin properly positioned in the panty.

In a preferred embodiment, the flaps may be composed of a topsheet, an absorbent member and a backsheet. Further, the flaps are preferably unitary to the layer of the secondary absorbent member. In other words, the topsheet, the absorbent member and the backsheet simply extend laterally outwardly to form the flaps. However, the flaps need not be unitary to the secondary absorbent member. Further, the flaps may be composed of a single substrate (backing layer) or other layer configurations. However, it is recommended that the flaps have a liquid impervious backsheet preventing the exudate from reaching the flaps so as not to pollute the edges of the wearer's panties.

It is further preferred that the flaps be provided with an absorbent member, at least to a point beyond the edges of the wearer's panties. In theory, only a small amount of menses should reach the flaps, therefore, only a relatively small amount of absorbent material is desired in the flaps. However, at least some absorbent material is recommended to prevent the exudates that reach the flaps from further flowing into the unprotected area. The absorbent material may be a fabric or an application

Absorbent Components of the Elongation of the Absorbent Element 56. However, the absorbent material in the flaps should be relatively highly flexible.

A plurality of sanitary napkins having flaps suitable or adaptable for use with the secondary absorbent member 50 of the compound sanitary napkin 20 of the present invention are disclosed in U.S. Patent Nos. 4,687,478 issued to Van.

Tilburg on August 18, 1987; No. 4,569,676, van Tilburg, issued May 20, 1986; and in U.S. Patent 4,608,047, issued to Mattingly on August 26, 1986. Each of these is incorporated herein by reference.

Optionally, the secondary absorbent member may comprise components that naturally wrap the sides of the wearer's panties. Sanitary napkins having naturally wrapping components of a wearer ' s panties suitable for use with the secondary absorbent component of the sanitary napkin 20 of the present invention are disclosed in U.S. Pat. No. 08/096 121 (Case P&G 4,961) entitled Absorbent article with panty liners covering components that naturally wrap the sides of the panties, filed July 22, 1993, on behalf of Lavashe et al.

...... (Case P&G 5 354), filed under the heading of Underwear covering Extensibility

Content of each

June 20, here

US por. c product with zones

1994, on behalf of Weinberger et al. hereby incorporated by reference.

The individual components of the primary absorbent member 30 and the secondary absorbent member 50 may be comprised of components that are extensible (preferably capable of resilient expansion), especially in the longitudinal direction when folded. Preferably, the folded sanitary (elongation) in the longitudinal direction is between about 40% of its unstretched length. This extensibility improved fit in use, comfort, and reduced when the pleated sanitary napkin is attached to the sanitary napkin, the worn napkin is capable of elongating about 15% and is rich in snow, the wearer's undergarment.

Preferably, the secondary absorbent member is comprised of components that are also extensible in the lateral direction when the composite sanitary napkin is worn. Preferably, the composite sanitary napkin is capable of extending in the lateral direction between about 15¾ and about 40¾ of its unstretched length.

an absorbent member, thus comprising an elastic, polymeric structure, No. 07/936, filed on May 25, 2003, incorporated herein by reference.

Particularly preferred stretched adhesive film, the bottom layer is Formula # 198-388,

The topsheet for both the primary secondary absorbent member may be a three-dimensional, fluid-permeable, as disclosed in U.S. Patent Application Aug. August, 1992, by Cree et al. , and which is hereby incorporated by reference.

known as manufactured by Findlay Adhesives Cornpany of Wauwatosa, Wisconsin.

Sanitary napkins having extensible components as disclosed in U.S. patent application Ser. Nos. 07/915 133 and 07/915

284, both filed July 23, (PCT Publication No. WO 93/01785 February 4, 1993). Content of each reference.

Referring now to FIG.

preferably has a length of 60 and the component is preferably from

1992, named Osborn et al. and 93/01786, both of which are incorporated herein by reference

1, the secondary absorbent member width 6J. . Secondary absorbent about 20 to 40 cm long, more preferably about 25 to 35 cm long, and most preferably about 30 cm long.

Although it may have any cross-section in the unloaded state, the primary absorbent member is preferably rectangular in cross-section. The secondary absorbent member is preferably from about 5 to 10 cm wide, more preferably from about 5 to 10 cm wide, and most preferably from about 5 to 8 cm wide. The thickness of the secondary absorbent member 50, as seen in FIG. 2 and 3 is generally somewhat smaller than its width.

Because the primary absorbent member performs different functions than the secondary absorbent member, the properties of the primary absorbent member may be relative to each other of the absorbent member to bypass the primary absorbent member and the characteristics of the component forming materials and the secondary absorbent member are somewhat different.

One of the primary functions is to absorb and absorb body fluids. In addition, the primary absorbent member is preferably of a size and shape such that it will fit within the labia. Accordingly, the width and / or diameter of the primary absorbent member should be sized to at least partially fit within it. That is, a portion of the primary absorbent member will preferably sit between the labia during use. Since exposed female genitalia containing labia are generally referred to as soft body tissue, it is important that the materials containing the primary absorbent member are adaptable and relatively soft so that they are non-irritating and / or user-friendly. In contrast, one of the main functions of the secondary absorbent member is to protect the undergarments from contaminated fluids that may be expelled by the primary absorbent member or irreversibly the absorbent member. Since the secondary does a different function than the primary absorption dimensions and properties may be somewhat

It is distinguished from those of the primary absorbent member.

Optionally, the width of the secondary absorbent member is at least 1.5 times the width of the primary absorbent member. More preferably, the width of the secondary absorbent member is at least 2 times the width of the primary absorbent member. Most preferably, the width of the secondary absorbent member is in the range of about 3 times to about δ times greater than the width of the primary absorbent member.

The secondary absorbent member preferably has the same length as the primary absorbent member while the composite sanitary napkin is in its unloaded condition. However, it is entirely possible for the secondary absorbent member to be somewhat longer than the primary absorbent member and still function effectively.

Referring now to FIG. 1, it can be seen that the primary absorbent member 30 and the secondary absorbent member 50 share a common length 65. The common length refers to the length that the primary and secondary absorbent members have in common.

In order to form the composite sanitary napkin of the present invention, the primary absorbent member and the secondary absorbent member are joined by connection means generally designated 70 in FIG. 2 and 3.

The exact nature of the fasteners is irrelevant if the selected means serves to bond the primary and secondary absorbent members into the composite sanitary napkin of the present invention with sufficient tenacity so that they do not detach each other during use of the primary and secondary absorbent members. Fasteners such as adhesive fasteners with well known hot melt and self-adhesive adhesives are entirely satisfactory. If the nature of the components chosen to assemble the sanitary napkin permits, heat welding, ultrasonic welding, or a combination of both heat and ultrasonic welding may be used.

The primary absorbent member may be connected to said secondary absorbent member by fasteners in such a way that the longest unattached distance between adjacent attachment points is less than 75¾ of this common length. Optionally, the primary absorbent member is attached to the secondary absorbent member by fasteners such that the longest unattached distance between adjacent attachment points is less than 50% of said common length. Optionally, the primary absorbent member is attached to the secondary absorbent member by fasteners in such a way that the longest unattached distance between adjacent attachment points is less than 25% of the common length. Optionally, the primary absorbent member is attached to the secondary absorbent member by the fasteners so that the fasteners extend along substantially the entire common length.

Giant. 5 illustrates yet another preferred embodiment of the compound sanitary napkin 20 of the present invention. The primary absorbent member 30 has a length 40 that is somewhat less than the length 60 of the secondary absorbent member 50. Accordingly, the common length 65 corresponds to the length 40 of the primary absorbent member 30.

In FIG. 3, the topsheet 32 completely encapsulates the absorbent core 34 of the primary absorbent member 30. In this form, the topsheet 32 for the primary absorbent member 30 is separate and different from the topsheet 52 for the secondary absorbent member 50.

Optionally, the topsheet 32 for the primary absorbent member 30 and the secondary absorbent member 50 may be made from a single material structure, such as the topsheet 100 shown in FIG. In this embodiment, the topsheet 100 is used for the topsheet on both the primary absorbent member 30 and the secondary absorbent member 50. In the embodiment of Fig. 6, the topsheet 100 serves as a fastener 70 connecting the primary absorbent member and the secondary absorbent member. together. The composite sanitary napkin may also include additional fasteners for attaching the primary absorbent member to the secondary absorbent member. Suitable additional fasteners include, but are not limited to, adhesives and fusible bonds. The primary absorbent member 30 has a width of 41. The composite sanitary napkin has a width of fasteners 541 that is a distance across the fastener 70. The width of fasteners 541 is less than the width of the primary absorbent member. Preferably, the width of the fastener 541 is less than 75¾ of the width of the primary absorbent member 30. More preferably, the width of the fastener 541 is less than 50% of the width of the primary absorbent member 30. Most preferably the width of the fastener 541 is less than 25% of the width of the primary absorbent member 30.

As seen in FIG. 6, the absorbent core 34 is disposed between the topsheet 100 and the resilient member 45 of the primary absorbent member 30. The resilient member 45 has a substantially U-shaped cross-section and causes the primary absorbent member 30 to have a generally U-shaped cross-section.

Preferably, the resilience of the resilient member 45 is not affected by the presence of body exudates absorbed and retained within the absorbent core. The retained elasticity of the resilient member 45 allows the primary absorbent member 30 to maintain intimate contact with the body of the wearer in use.

In FIG. 6A, the resilient member 45 and the primary absorbent member 30 have an overall circular or oval cross-sectional configuration.

Preferably, the primary absorbent member 30 exhibits a stable resistance sufficient to provide greater performance. As used herein, the term stable resistance refers to the resistance exhibited by the primary absorbent member to 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 beyond the side edges of the secondary absorbent member. In other words, stable resistance describes the relative movement of the primary absorbent member compared to the secondary absorbent member. It is preferred that the side edges of the primary absorbent member do not extend beyond the side edges of the secondary absorbent member under relatively high forces. By keeping the side edges of the primary absorbent member within the side edges of the secondary absorbent member under relatively high forces, the opportunity to bypass or expel from the primary absorbent member and onto a surface other than the secondary absorbent member, such as the wearer's skin or underwear, is substantially reduced.

The apparatus necessary to determine a stable resistance includes a scale and a resistive element. A suitable scale is the Sartorius Universal scale. The resistance element is a cylindrical rod having a diameter of 1 inch (2.54 cm). The resistive element is preferably about 6 inches (15.24 cm) long. The resistive element may be made of any suitable material capable of withstanding the forces during the respective stability resistance test procedure. Suitable materials include, but are not limited to, steel, aluminum, plastic, wood, etc.

The procedure of the stable resistance assay is as follows: Referring now to FIG. 7 and 8, the resistive member 400 is placed on a scale 402 which is then tared to zero the scale. A composite sanitary napkin, such as an insert 410 having a primary absorbent member 412 and a secondary absorbent member 414, is positioned on the testing device such that the primary absorbent member 412 rests on the resistive member 400. Part of the backsheet of the secondary absorbent member 414 should be aligned substantially parallel to the axis of the resistance member 400. The force generally indicated in FIG. 7 and 8 as F, is applied to each end of the secondary absorbent member 414. The force should be applied until the side edge 420 of the primary absorbent member is equal to the side edge of the secondary absorbent member 418 as seen substantially perpendicular to the upper layer portion of the secondary absorbent member 414. Once the side edges of the respective primary absorbent member and the secondary absorbent member are aligned, the force to the nearest gram is recorded. This value indicates the stable resistance of the primary absorbent member.

The primary absorbent member may have a stable resistance of greater than about 600 grams. Preferably, the primary absorbent member has a stable resistance greater than or equal to 50 grams, more preferably greater than or equal to 100 grams, and most preferably greater than or equal to 150 grams.

In FIG. 9-17 illustrates several specific, non-limiting embodiments of a composite sanitary napkin.

In FIG. 9 shows an example of a primary absorbent member having a resilient member folded into Z. As seen in FIG. 9, the absorbent core 34 is preferably positioned between the topsheet 32 and the resilient member 45. Placing the absorbent core 34 between the topsheet 32 and the resilient member 4 helps to ensure intimate contact between the absorbent core 34 and the topsheet 32. A close contact between the topsheet and the absorbent core through bonding or pressure applied by the resilient member to promote core transfer is described.

In the fluid from the topsheet to the underlying absorbent of some embodiments, it may be desirable to have a resilient member 45 capable of absorbing body fluid. Such materials may include, but are not limited to, absorbent foams and sponges.

Referring now to FIG. 10 is a cross-sectional view taken along the longitudinal axis of another embodiment of the compound sanitary napkin 20 of the present invention. The primary absorbent member 30 comprises an absorbent core 34 comprised of a relatively low density layer 72, a relatively high density layer 73, a plurality of elastic fibers 74, and an absorbent gelling material 75 dispersed on and within the high density layer 73. The absorbent gelling material 75 is dispersed primarily within the first and second regions 27, 29 of the primary absorbent member 30. The relatively low density layer 72 is preferably comprised of a thermally bonded, airlaid material. The relatively high density layer 73 is preferably comprised of a thermally bonded, airlaid material. The elastic fibers are preferably capillary channel polyester fibers.

Giant. 11 is a cross-sectional view of another embodiment of the compound sanitary napkin 20 of the present invention. The absorbent core 34 comprises a carded nonwoven layer of fibers. Preferably, a masking element 77 is disposed within the nonwoven layer of fibers with the capillary channel, and forms multiple with the capillary channel. A suitable masking element is a liquid-permeable film. Yet another masking element is a formed film. Optionally, absorbent materials such as absorbent gelling materials can be incorporated into the nonwoven layer of capillary channel fibers.

Although FIG. 11, the non-woven layer of capillary channel fibers having an overall circular cross-section, the capillary channel fiber layer may be manufactured in a wide variety of shapes such as rectangular, triangular, oval, U-shaped, bent to Z, etc.

Giant. 12 illustrates another embodiment of the composite sanitary napkin 120. The composite sanitary napkin 120 includes a primary absorbent member 130 and a secondary absorbent member 150. The primary absorbent member 130 comprises a perforated formed film topsheet 132, a receiving element 140, a spacer element 145, an absorbent core layer 150; the first resilient member 155 and the second resilient member 157. The first resilient member 155 extends over substantially the entire length of the primary absorbent member 130. The first resilient member 155 preferably comprises capillary channel polymeric fibers as described in Thomson, U.S. Patent No. 5,200,248. et al. April 6, 1993, The second resilient member 157 preferably comprises a nylon monofilament, arranged substantially in circular cross-section, fixed to each other at the receiving member 140 and at the inner surface of the absorbent core 150. As seen in FIG. 12, the secondary resilient members 157 are disposed substantially in the central portion of the primary absorbent member 130.

The primary absorbent member 30 may comprise a resilient member 45 similar to the inner molding component disclosed in U.S. Pat. No. 08/225,441 (Case P&G 5109R), entitled Sanitary napkin having an internal molding component, filed April 8, 1994, on behalf of Carl I. Bergman. Both of the above applications are incorporated herein by reference.

In FIG. 13, another preferred embodiment of the folded sanitary napkin 200 is shown. The folded sanitary napkin 200 includes a primary absorbent member 210 and a secondary absorbent member 220. The primary absorbent member 210 preferably includes a topsheet 212, an absorbent core 214, and a resilient member 216. As seen in FIG. 8, the resilient member 216 has a substantially V-shaped cross-sectional shape. Accordingly, the primary absorbent member 210 likewise has a substantially V-shaped cross-sectional shape.

Preferably, the resilient member 216 extends over substantially the entire length of the primary absorbent member 210.

In FIG. 14, another preferred embodiment of the compound sanitary napkin 240 of the present invention is shown. Preferably, the folded sanitary napkin 240 comprises a primary absorbent member 245 and a secondary absorbent member 250. As seen in FIG. 14, the composite hygienic substantially horizontal segment of the insert 240 preferably has a 255 and an upwardly curved segment 257. The horizontal segment 255 resides within the first end 27 portion and the central portion 28. The upwardly curved segment 257 rests within the second end 29 portion. The upwardly curved segment 257 preferably comprises a tensioning means that provides sufficient tension to create a curvature in the second segment 257. Suitable tensioning means include, but are not limited to, the stretched topsheet, elastic material, threads, foil, or any means to provide the desired tension. Optionally, the segment located within the first end piece 27 may also be curved upward.

As seen in FIG. 15, the primary absorbent member 245 and the secondary absorbent member 250 are joined together throughout their common length. That is, they are joined together through segments 255 and 257. Optionally, they may be joined together in the first segment 255 and may be separated from each other in the rear segment 257, as shown in FIG. 15. In this embodiment, the absorption remains through the segments 255

The primary absorbent segment 257, the member 250 is substantially in the same plane and 257 while the unloaded component 245 is disposed upwardly from the second and separates from the second absorbent member 250. The segment 257 generally coincides with the second end piece 29 . The primary absorbent member may also bend upwardly within the portion of the first end 27.

In FIG. 16 and 17, another embodiment of the compound sanitary napkin 320 of the present invention is shown. The folded sanitary napkin 320 comprises a segmented primary absorbent member 330 and a secondary absorbent member 340 The primary absorbent member comprises individual absorbent components 331, 332, and 333, as shown in FIG. 16 and 17, segment 331 lies entirely within region of first end 27, segment 3 32 lies completely within central region 28, and segment 333 lies completely within region of second end 39. Optionally, the primary absorbent member may comprise two components that extend from the end regions 27, and 29, to the central region 28. Optionally, the primary absorbent member may comprise 4 or more individual components. Although FIG. 16 and 17 showing a primary absorbent member having multiple components extending the length of the folded sanitary napkin, it may be desirable to have several segments or some regions of the folded sanitary napkin without any primary absorbent element. For example, the region of the first end 27 and the central region 28 may comprise a primary absorbent component, wherein the region of the second end 29 comprises only a secondary absorbent member. In addition, primary absorbent members within different regions can be designed to perform specific functions and thus can be made of materials to perform these desirable functions. For example, the primary absorbent segment 332 within the central region 28 may contain greater absorbent material capacity than the segments 331 or segments 333 because segment 332 is likely to be positioned to receive body fluids directly, while elements or segments 331 or 333 are likely to receive and therefore, have less capacity than segment 332 within the central region 28.

It may be desirable to provide a composite sanitary napkin having a primary absorbent member with varying degrees of width or diameter over its length. For example, the primary absorbent member may be relatively thicker in the central region than

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The compound sanitary napkin of any preceding claim, wherein the primary absorbent member has a conformance at 3/8 inch (about 1 cm) less than 1.0 psi (about 0.07 kg / cm 2).

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The compound sanitary napkin of any preceding claim, wherein the width of the secondary absorbent member is at least 2 times greater than the width of the primary absorbent member.

The composite sanitary napkin of any preceding claim, wherein the primary absorbent member is attached to the secondary absorbent member by the fasteners in such a way that the longest unattached distance between adjacent attachment points is less than 50% of said common length.

A composite sanitary napkin according to any preceding claim, wherein the primary absorbent member is attached to the secondary absorbent member by connection means that extend substantially continuously along a common length.

The composite sanitary napkin of any preceding claim, wherein the secondary absorbent member comprises an absorbent member disposed between the topsheet and the backsheet,

The composite sanitary napkin of any preceding claim, wherein the primary absorbent member comprises a fluid barrier.

The compound sanitary napkin of any preceding claim, wherein the primary absorbent member comprises at least one resilient member.

The compound sanitary napkin of any preceding claim, wherein the primary absorbent member comprises two or more segments.

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Claims (1)

PATENT CLAIMS A composite sanitary napkin comprising a primary absorbent member having length and width, and a secondary absorbent member having length and width. The primary absorbent member and the secondary absorbent member have a common length, the primary absorbent member comprising an absorbent core and a fluid permeable topsheet disposed on the absorbent core. The secondary absorbent member comprises a fluid-permeable topsheet, a fluid-impermeable backsheet attached to the topsheet, the primary absorbent member being coupled by connection means to the secondary absorbent member; the composite sanitary napkin is characterized in that the width of the secondary absorbent member is at least 1.5 times greater than the width of the primary absorbent member. A composite sanitary napkin comprising a primary absorbent member having length and width, and a secondary absorbent member having length and width. The primary absorbent member and the secondary absorbent member have a common length, the primary absorbent member comprising an absorbent core and a fluid permeable topsheet disposed on the absorbent core. The secondary absorbent member comprises a fluid-permeable topsheet and a fluid-impermeable backsheet attached to the topsheet; said composite sanitary napkin being characterized by an absorbent member being joined by the fasteners by the longest unattached distance, wherein the primary absorbent is in a manner such that between adjacent attachment points is less than 75% of said common length. this is the case in terminal regions. Alternatively, the primary absorbent member may be relatively thinner in the central region than in the end regions. While particular embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover all such changes and modifications within the scope of the present invention.