MXPA99008967A - A method for assembling body fitting compound sanitary napkin - Google Patents

Abstract

A method of manufacturing a compound sanitary napkin (20) comprising a primary absorbent member (30) and a base member (50) is provided. The primary absorbent member (30) extends in a longitudinal direction, comprises a primary absorbent element and a fluid peervious cover superimposed on the primary absorbent element, and superimposes on the base member. The method comprises the steps of:wrapping the primary absorbent element by the fluid pervious cover to make the primary absorbent member (30), the primary absorbent element arranged to provide a first predetermined interval, forwarding the primary absorbent member (30), toward a combining section, feeding the base member (50) toward the combining section, applying a union means to at least one of the primary absorbent member (30) and the base member (50) along at least a part of the longitudinal direction to affix the primary absorbent member (30) and the base member (50), and combining the primary absorbent member (30) and the base member (50) by applying at least pressure at the interval.

Description

A METHOD FOR ASSEMBLING A COMPOSITE SANITARY TOWEL THAT ADJUSTES THE BODY FIELD OF THE INVENTION The present invention relates to a method for manufacturing disposable sanitary napkins. More particularly, the invention relates to a method for manufacturing a sanitary napkin comprising a primary absorbent member and a base member, in do; of the primary absorbent member comprises a primary absorbent element BACKGROUND In its simplest form, disposable sanitary napkins comprise an absorbent element (sometimes referred to as an absorbent core) interposed between a liquid permeable sheet facing the body (sometimes referred to as a top sheet) and a waterproof sheet to the liquid facing the underwear article (sometimes referred to as a back sheet). Of course, the absorbent element aims to receive and contain menstrual bleeding and other vaginal discharges. The face-to-body sheet aims to provide more or less comfort and dry feel on contact with body surfaces while allowing free passage of fluids through it to the absorbent element. The front sheet of the undergarment aims to prevent menstrual bleeding or other vaginal discharges that are expelled or that escape from the absorbent element from soiling the wearer's underwear. In addition to the three functional elements mentioned above, disposable sanitary napkins are generally provided with means for supporting the device adjacent to the user's crotch area, even while the user is moving, where he can perform the proposed function in the most effective manner. Typically, sanitary napkins are provided with adhesive fastening means to secure the device to the inner crotch area of the wearer's underwear. While the previously known sanitary napkins perform their proposed functions, each particular design suffers from certain deficiencies in one or more absorbency of body fluids, protection against soiling of the wearer's undergarments, and / or physical comfort to the wearer . With respect to disposable sanitary napkins, at least two general classes exist at present. One such class is identified as being proposed for the absorption of menstrual flows from medium to high. These sanitary napkins offer a relatively high absorbent capacity. Absorbent capacity is commonly achieved by providing the sanitary napkin with a relatively thick and bulky absorbent member. While it has a relatively high absorbent capacity, the volume of the absorbent body can cause a certain degree of discomfort to dress. A second class of sanitary napkins is proposed for mild or low menstrual flows and is commonly referred to as pantyhose or panty liners. Sanitary pads of this kind, as a group, are thinner, for some reason more flexible and generally more comfortable than those of the first class. However, second-class sanitary napkins typically lack the absorbent capacity of first-class sanitary napkins. An attempt to provide the benefits of the two previously described kinds of sanitary napkins in a single sanitary napkin is disclosed in commonly assigned United States Patent No. 4,425,130 issued to DesMarais on January 10, 1984. The sanitary napkin composed of DesMarais 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 essentially along their entire common length. In use, the relative freedom of movement between the primary menstrual pad and the pant liner serves to maintain the primary menstrual pad adjacent to the wearer's crotch region while the pant liner remains associated with the wearer's underwear. While the relative freedom of movement between the primary menstrual pad and the pant liner serves to maintain 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 primary menstrual pad moves laterally beyond the side edges of the panty liner, providing an opportunity for soiling the wearer's underwear. While absorbent articles of the state of the art such as sanitary napkins have addressed some of the problems of carrying out a composite sanitary napkin, they have not directed a method for manufacturing sanitary napkins composed in the manner of the present invention, so Thus, a primary object of the present invention is to provide a method for manufacturing composite sanitary napkins.

BRIEF DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a sanitary napkin comprised of a primary absorbent member and a base member. The primary absorbent member extends in a longitudinal direction, comprises a primary absorbent member and a fluid permeable cover superimposed on the primary absorbent member, and superimposed on the base member. The method comprises the steps of: wrapping the primary absorbent member by the fluid permeable cover to form the primary absorbent member, the primary absorbent member arranged to provide a first predetermined range, sending the primary absorbent member to a combination section, feeding the base member towards the combination section, apply a means of attachment to at least one of the primary absorbent member and the base member along at least part of the longitudinal direction to fix the primary absorbent member and the limb member. base, and combining the primary absorbent member and the base member by applying at least pressure in the range. The present invention further relates to a sanitary napkin comprising a primary absorbent member and a base member. The primary absorbent member has longitudinal sides and transverse ends, comprises a primary absorbent member and a fluid permeable cover superimposed on the primary absorbent member, and superimposed on the base member. The base member has longitudinal sides and transverse ends, and comprises a fluid-permeable body facing sheet, a fluid-impermeable garment facing sheet attached to the fluid-permeable leather facing sheet and an absorbent element. secondary positioned between the sheet facing the fluid-permeable body and the sheet facing the fluid impervious article of clothing. The primary absorbent member is fixed to the base member by attachment means comprising first attachment means and second attachment means. The first attachment means includes adhesive applied between the primary absorbent member and the base member along at least part of the longitudinal direction. The second joining means includes pressure applied to the primary absorbent member and the base member at the transverse ends.

BRIEF DESCRIPTION OF THE DRAWINGS While the specification concludes with claims that particularly claim and distinctly claim the present invention, it is reasonable that the present invention will be better understood from the following description along with the following drawings, in which similar reference numbers identify identical elements and wherein: Figure 1 is a top plan view of a modality of the sanitary napkin produced by the present invention; Figure 2 is a cross-sectional view taken along the longitudinal centerline L of the composite sanitary napkin shown in Figure 1; Figure 3 is a cross-sectional view taken through the center line T of the composite sanitary napkin shown in Figure 1; Figure 4 is a cross-sectional view of another embodiment of a composite sanitary napkin produced by the present invention; Figure 5 is a top plan view of a fluid permeable cover split with a primary absorbent member of a primary absorbent member; Figure 6 is a planar top view of a composite sanitary napkin comprising attachment means; Figure 7 is a cross-sectional view taken along the line VII-VII shown in Figure 1; Figure 8 is a partial cross-sectional view of another embodiment of a composite sanitary napkin produced by the present invention; Figure 9 is a cross-sectional view of another embodiment of a composite sanitary napkin produced by the present invention; Figure 10 is a top plan view of another embodiment of a sanitary napkin composed of the present invention; Figure 11 is a top plan view of another embodiment of a sanitary napkin composed of the present invention; Figure 12 is a fragmentary view showing the sanitary towel sectioned and the panty in place in a wearer; Figure 13 is a schematic side elevational view of an exemplary process embodiment of the present invention; Fig. 14 is a schematic side elevational view of the decorated cylinder of the joint unit shown in Fig. 13; Fig. 15 is a schematic, fragmentary side elevational view of the decorated cylinder of the pressure applying unit shown in Fig. 13; Figure 16 is a first fragmentary planar view of the sanitary towel assembly process produced by the process shown in Figure 13; Figure 17 is a second fragmentary plan view of the sanitary towel assembly process produced by the process shown in Figure 13; Figure 18 is a schematic elevation view of another embodiment of the exemplary process of the present invention; Figure 19 is a fragmentary plan view of the sanitary towel assembly process produced by the process shown in Figure 18; Figure 20 is a second fragmentary plan view of the sanitary towel assembly process produced by the process shown in Figure 18; Figure 21 is a schematic side elevational view of another embodiment of the exemplary process of the present invention; Figure 22 is a first fragmentary plan view of the sanitary towel assembly process produced by the process shown in Figure 21; Figure 23 is a second fragmentary plan view of the sanitary towel assembly process produced by the process shown in Figure 21.

^ DETAILED DESCRIPTION OF THE INVENTION This invention is of a method for manufacturing a sanitary composite pad that adjusts the body which exhibits absorbency for body fluids, protection of the wearer's underwear garments against staining, and physical comfort to the wearer. The term "sanitary napkin", as used herein, refers to an article which is used by women adjacent to the pudendal region and which is intended to absorb and contain various exudates that are discharged from the body (e.g.

»Blood, menstrual bleeding and urine) and which is proposed to be discarded after a single use (for example it is not intended to be washed or otherwise restored or reused). The term "compound sanitary napkin", as used herein, refers to a sanitary napkin comprising separate constituents attached to one another to form a unitary structure. The interlabial devices which reside partially within and partially external to the user's vestibule are also within the subject matter of this invention. As used herein, the term "pudendal" refers to the externally visible female genitalia and is limited to the labia majora, lip minor, the clitoris, and the vestibule. Before explaining the method, a preferred embodiment of a composite sanitary napkin is described. Referring now to Figures 1-3, there is shown a preferred embodiment of a composite sanitary napkin 20. The sanitary napkin 20 has two surfaces, a face 20A facing or contacting the body and a front surface or which makes contact with the undergarment 20B. The composite sanitary napkin has a first end region 27, a central region 28, a second end region 29, longitudinal sides 16 and transverse ends 18. The sanitary napkin 20 has two centerlines, a longitudinal centerline L and a transverse center line T. The term "longitudinal", as used herein, refers to? a line, axis or direction in the plane of the sanitary napkin compound that generally is aligned with (e.g., approximately parallel to) a vertical plane which bisects a user standing on the left and right body halves when dressing the composite sanitary napkin. The terms "transverse" or "lateral", as used herein, are interchangeable, and refer to a line, axis or direction which rests within the plane of the sanitary composite pad that is generally perpendicular to the direction longitudinal. ? As can be seen in Figures 1-3, the sanitary composite pad 20 comprises a primary absorbent member 30 and a secondary absorbent member (base member) 50 held together by attachment means 70. Each of the primary and secondary absorbent members they have correspondingly surfaces facing the body and facing the undergarment. The absorbing member? primary 30 has longitudinal sides 24 and transverse ends 25 which together form the periphery 26 of the primary absorbent member 30. The primary absorbent member 30 also has a longitudinal extension PL and a transverse width PW, and a thickness PT. The secondary absorbent member 50 has longitudinal sides 21 and transverse ends 22 which together form the periphery 23 of the secondary absorbent member 50 and the sanitary composite pad 20. The secondary absorbent member 50 has a longitudinal extension SL and a transverse width SW and a thickness ST. As shown in Figure 1, preferably, the sanitary napkin 20 has fins 33 extending from the longitudinal sides 21 of the absorbent member. secondary 50 in the central region 28 of the composite sanitary napkin 20.

The primary absorbent member 30 is, as the name implies, the constituent of the composite sanitary napkin 20 which is intended to absorb the volume of the fluids discharged by the user. The primary absorbent member 30 generally has a rectangular shape extending in the longitudinal direction as along the longitudinal centerline L. In a preferred embodiment the longitudinal extension PL can generally be equal to the longitudinal extension SL of the secondary absorbent member 50. The transverse width PW can generally be narrower than the transverse width SW of the secondary absorbent member 50. The primary absorbent member 30 comprises a primary absorbent member in such a way that a absorbent core 34, a cover permeable to! liquid ta! as a permeable top sheet? to the fluid 32 superimposed on the core 34. The upper sheet 32 is preferably docile, sensing, and non-irritating to the wearer's skin. Additionally, the top sheet is permeable to the fluid, allowing the fluid to easily penetrate through its thickness. A convenient top sheet 32 can be manufactured from a wide range of materials such as woven materials or? nonwovens; polymeric materials such as openings formed of thermoplastic films, open plastic films and hydroformed plastic films; and thermoplastic canvases. The woven or non-woven materials may be formed 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 synthetic and natural fibers. A preferred top sheet comprises a film formed with openings. Films formed with openings are preferred for upper sheets because they are permeable to body exudates and not yet absorbent and have a reduced tendency to allow fluids to pass back to through and rewet the user's skin. Therefore, the surface of the formed film that is in contact with the body remains dry, whereby the staining of the body is reduced and a more comfortable feeling is created for the user. Suitable shaped films are described in U.S. Patent No. 3,929,135 issued to Thompson, December 30, 1975; U.S. Patent No. 4,324,246 issued to Mullane et al., April 13, 1982; the Patent of the States United States 4,342,314 issued to Radel et al. On August 3, 1982, Patent of the United States No. 4,463,045, issued to Ahr et al. On July 31, 1984 and United States Patent No. 5,006,394 issued to Baird on April 9, 1991. Each of these patents is incorporated herein by reference. The preferred top sheet for the primary absorbent member is a formed film described in one or more of the patents above and marked on sanitary napkins by Procter & Gamble Company of ) Cincinnati, Ohio as "DRY-WEAVE". The exposed surface or body of the formed film topsheet can be hydrophilic to help the fluid transfer through the topsheet be faster than if the body surface were not hydrophilic to decrease the likelihood that menstrual flow will flow out of the upper leaf in? time it flows inside and is absorbed by the absorbent core. In a preferred embodiment, surfactants may be added within the polymeric materials of the formed film topsheet as described in PCT publication no. WO93 / 09741 published on May 23, 1993 in the name of Aziz et al., Which is here incorporated by reference. Alternatively, the body surface of the topsheet can be made hydrophilic by treating it with a surfactant such as is described in U.S. Patent No. 4,950,264 issued to Osborn, August 1990 and which is here incorporated by reference. In a preferred embodiment, as shown in Figure 4, the sheet 32 may comprise a non-woven material 37 and a formed film 36 superimposed on the non-woven material 37. The formed film 36 has a first surface 38 facing the outside, a second surface 39 facing the non-woven material 37 and the absorbent core. 34, and openings 42 extending from the first surface 38 to the second surface 39. The area of the openings 42 in the second adjacent surface 39.

P to the absorbent core 34 generally the area of the openings 42 in the first surface 38. Because the opening area of the first surface 38 is generally larger than the area of the opening of the second surface 39, the fluid can easily penetrate the top sheet 32 towards the absorbent core 34. However, this inhibits the fluid acquired in the absorbent core 34 from being transferred from the absorbent core 34 to the outside and rewetting the wearer's skin. The nonwoven material 37 is superimposed on the second surface 39 of the formed film. Each of the film formed 36 and the? Nonwoven material 37 has a rectangular shape when the formed film 36 and the nonwoven material 37 are unfolded as shown in Figure 5. The topsheet 32 has longitudinal sides and transverse ends 46. The formed film 36 has longitudinal sides 43 and ends transverse 44, and the non-woven material 37 has longitudinal sides 47 and the corresponding transverse ends 48. The ? formed film 36 and nonwoven material 37 may be superimposed by any convenient manner. Preferably, the formed film 36 and the nonwoven material 37 may be adjacent to each other along the longitudinal sides 45 by a plurality of discrete points 49. The discrete dots may be formed by applying pressure, heat, pressure and heat, and / or adhesive. Alternatively, the formed film 36 and the nonwoven material 37 may be bonded to one another along the entire length of the longitudinal sides 45. The absorbent core 34 may be any absorbent means that is generally compressible, comfortable, resilient, non-irritating, to the user's skin and capable of absorbing and containing body exudates. The absorbent core 34 can be manufactured from a wide variety of fluid absorbent materials 2 commonly used in disposable sanitary napkins, and other disposable absorbent articles. Examples of suitable absorbent materials include powdered wood pulp (referred to as an air filter) cellulose casing? accreted, modified cross-linked cellulose fibers (such as those described in United States Patent No. 5,217,445 issued to Young and others on June 8, 1993) fibers of capillary channels (ie, fibers having capillary channels between fibers such as those described in U.S. Patent No. 5,200,248 issued to Thompson et al. On April 6, 1993), absorbent foams (such as those described in U.S. Patent No. 5,260,345 issued to DesMarais and others on November 9, 1993 and the United States Patent No.? 5,268,244 issued to DesMarais et al. On December 7, 1993), thermally bonded air deposited materials (such as those materials described in U.S. Patent No. 5,607,414 issued to Richards et al. On March 4, 1999), agents polymerizing gelling agents that form hydrogel (such as those described in U.S. Patent No. 4,673,402 issued to Weisman et al. On June 16, 1987 and U.S. Patent No. 4,935,002 issued to Lash et al. June 19, 1990), absorbent sponges, fibers of synthetic raw material, -polymer fibers, swamp moss, or any equivalent materials or combination of materials. Suitable absorbent cores comprising sponges are described in U.S. Patent No. 5,260,345 issued to DesMarais et al. On November 9, 1993, U.S. Patent No. 5,147,345 issued to Young and others as of September 15, 1993, U.S. Patent No. 5,1949,720 issued to DesMarais on September 22, 1993. 1992; U.S. Patent No. 5,198,472 issued to DesMarais et al. On March 30, 1993 and U.S. Patent No. 5,250,576 issued to DesMarais on October 5, 1993. Cores comprising foams are described in European Application 0 293 208 B1. Absorbent cores comprising sponges are described in U.S. Patent Nos. 3,512,530 and 3,954,493 and French Patent No. 2,203,827. P The materials selected for use as absorbent cores 34 are preferably docile, soft, comfortable, compressible and resilient to provide fit to the body and comfort of the primary absorbent member 30. Preferably, the absorbent core 34 is compressible in such a way that the primary absorbent member 30 will deform under relatively small forces that are They experience during normal use. In addition to being compressible, the materials comprising the absorbent core 34 preferably are comfortable in such a manner P that the primary absorbent member 30 is capable of providing improved fit on and around the lips and perineum. While it is generally compressible and comfortable under relatively small forces, those forces exerted during use by the female external genitalia, it is also important that the primary absorbent member 30 is sufficiently resilient in such a way that when subject to normal forces? of wear, do not collapse permanently. Preferably, the primary absorbent member 30 will be sufficiently resilient that it will conform the contour of the body to provide intimate contact with the exposed genitals of female use. Intimate contact with the exposed female genitalia helps to provide better transfer of fluid from the user to the primary absorbent member without allowing the fluid to bypass and / or escape from the primary absorbent member. While the resiliency characteristics of the absorbent core 34 provide improved fit, these must be balanced against the need of the product to be both, soft and comfortable for the wearer. In a preferred embodiment, the absorbent core 34 comprises hydrogel forming polymers and hydrophilic fibers such as air filters. Preferably, the absorbent core 34 comprises hydrogel forming polymers of between 10% and 60%. More preferably, the absorbent core 34 may include air filter of between 50% and 85%. If necessary, the absorbent core 34 may additionally include fibers? hydrophobic As shown in Figure 3, the absorbent core 34 is manufactured in a generally cylindrical shape for providing the primary absorbent member 30 with a generally cylindrical shape. While the absorbent core 34 shown in Figure 3 has a generally circular cross section, the absorbent core can be manufactured in a wide variety of shapes such as rectangular, triangular, oval, square, pentagonal, U-shaped, Z-shaped. , etc. 10 • As shown in Figures 2 and 3, the top sheet 32 can surround the > absorbent core 34. The top sheet has a wider and wider length than the absorbent core 34 (shown in Figure 5). The transverse width of the upper sheet 32 is more than twice the transverse width of the absorbent core 34. This allows the longitudinal sides 45 of the upper sheet 32 to overlap below the core. absorbent 34 to surround the absorbent core 34 as shown in Figure 3. The? longitudinal sides 45 of upper sheet 32 can be secured by any convenient way to maintain the shape surrounded. Suitable manners include, but are not limited to, adhesives such as line adhesives, spiral adhesives, or knit adhesives. In a preferred embodiment shown in figures 3 and 5, line adhesive 51 is applied to one of the longitudinal sides 45 of the upper sheet 32 along the full length of the longitudinal extension. Alternatively, the adhesive intermittent line may be applied along the entire length of the longitudinal extension. The top sheet 32 may be associated with the absorbent core 34 of any convenient way. Convenient ways include, but are not limited to associating the topsheet 32 with the absorbent cores 34 with adhesives such as spray adhesive, in line adhesive or spot adhesive between the topsheet 32 and the absorbent core 34. Alternatively, or additionally, the topsheet 32 may be associated with the absorbent core 34 entangling the fibers of the? absorbent core 34 with the top sheet 32, melting the top sheet 32 to the core absorbent 34 with a plurality of individual discrete melt bonds, or by any means known in the art. To ensure proper transfer of fluid between the topsheet 32 and the absorbent core 34, it is preferred that the topsheet 32 be secured in a continuous manner to the underlying absorbent core 34 through its common interface or association. Substantially securing the sheet upper 32 to the underlying absorbent core 34, the upper sheet 32 will have a tendency > reduced 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. Therefore, the side facing the body of the absorbent core 34 can be secured to the top sheet by adhesive, for example, while the side facing the body of the absorbent core 34 may not be secured to the topsheet 32 to retard the transfer of fluid from the absorbent core 34 to the secondary absorbent member 50. The primary absorbent member 30 preferably is of circular or oval cross section while the primary absorbent member 30 Generally, it can be of any cross-sectional shape in its stress-free condition. The length PL, the width PW and the thickness PT of the primary absorbent member 30 may be of any convenient dimension. The length PL is preferably from about 2 to 35 cm, more preferably from about 10 to 35 cm, most preferably from about 20 to 35 cm. Preferably the length PL of the The primary absorbent member 30 can generally be equal to the length SL of the secondary absorbent member 50. The width PW is preferably from about 0.5 to 5 cm, more preferably from about 1 to about 5 cm and most preferably from around from 2 to around 4 cm. The width PW of the primary absorbent member 30 may be less than the width SW of the absorbent member? secondary 50. The thickness PT is preferably from about 0.2 to about 2.0 cm, more preferably from about 0.2 to 1.5 cm, and most preferably from about 0.4 to 1.2 cm. Preferably the thickness PT of the primary absorbent member 30 may be larger than the thickness ST of the secondary absorbent member 50. A ratio of the thickness PT over the width PW, or the ratio (PT / PW) may be between 0.05 and 1.5. Preferably, the ratio can be between 0.08 and 1.00. More Preferably, the ratio can be between 0.08 and 0.5. > The size of the primary absorbent member 30 is determined by the following test. A measuring comparator is needed, and specifically the Peacock Gage Model No. 307, available from Ozaki Manufacturing Co., LTD. The measuring comparator must have a circular comparator foot made of aluminum and it has to have weight of 9.0 grams and a contact surface of 16 cm2. The measuring comparator is? set in zeros. A weight of 60.0 grams of stainless steel is placed on the bolt that extends above the dial of the comparator. The comparator foot extends and the primary absorbent member and the primary absorbent member are placed below the surface of the undergarment on the base plate. The member The primary absorbent is placed on the base plate in such a way that when the foot is lowered it is in the region of the primary absorbent member from which the measurement is required. Try to soften or prevent any wrinkles in the primary absorbent member. Gently lower the foot on the primary absorbent member. Determine the gauge of the primary absorbent member by reading the comparator dial from 5 to 10 seconds after that the foot came into contact with the primary absorbent member.

The primary absorbent member 30 is preferably relatively comfortable. It is preferred to keep the primary absorbent member relatively comfortable in such a way that it easily fits in the labial groove during use. It has been found that a primary absorbent member having the width and / or thickness is able to fit comfortably next to the labial area. While the primary absorbent members have been described above as having width or thickness greater than the width or thickness greater than above, they can also fit within the labial groove if they are sufficiently comfortable. It is not necessary for the entire primary absorbent member to fit within the labial groove, however, a portion of the primary absorbent member is preferably able to fit within the labial groove. The primary absorbent member 30 may include optional elements. The primary absorbent member 30 may optionally comprise a resilient member with the absorbent core 34. The resilient member may comprise a single member or a plurality of individual members. Suitable materials that can be used as resilient members include, but are not limited to, nylon, polypropylene, polyurethane, polyethylene, synthetic polyester rubber, and other synthetic materials such as formed films or natural materials such as rubber, sponges, and the like. or any suitable material that is capable of withstanding the collapse under normal conditions of sanitary napkins during use. The resilient member can be manufactured in a wide variety of shapes such as rectangular, triangular, oval, square, pentagonal, U-shaped, Z-shaped, etc. The resilient member may extend through the full length of the primary absorbent member 30. The resilient member may only extend through a portion of the length of the primary absorbent member 30. The resilient member may be positioned within the first region. of end 27, central region 28, second end region 28 or any combination of those above. For example, the resilient member may be placed in either the first end region 27 or the second end region 29 of the primary absorbent member., in both the first end region 27 and the second end region 29 of the primary absorbent member 30, in the central region 28 of the primary absorbent member, or in the central region 28 and the end regions 27, 29 of the primary absorbent member 30. Optionally, the primary absorbent member 30 may comprise an acquisition layer positioned between the topsheet 32 and the absorbent core 34. The acquisition layer may serve several functions including improving the wicking effect of the exudates on and in the core. absorbent 34. Improving the wicking effect of the exudates, the acquisition layer provides an even greater distribution of the exudates throughout the absorbent core. The acquisition layer may be comprised of several different materials including woven or nonwoven webs of synthetic fibers including polyesters, polypropylene or polyethylene; natural fibers that include cotton or cellulose; mixtures of such fibers, or any equivalent materials or combinations of materials. Examples of sanitary napkins having an acquisition layer and a topsheet are more fully described in U.S. Patent No. 4,950,264 issued to Osborn and PCT Publication No. WO93 / 11725 published on June 24, 1993 to Cree names and others. Each of these references are incorporated herein by reference. In a preferred embodiment, the acquisition layer may be joined to the top sheet by any of the conventional means for joining frames together, more preferably by fusion bonds as more fully described in the Cree application referenced above. Referring to Figures 1-3A, the second necessary constituent of the sanitary napkin 20 is the secondary absorbent member (base member) 50. The secondary absorbent member 50 generally has a rectangular shape extending in the longitudinal direction along of the longitudinal center line L. In a preferred embodiment, the longitudinal extension SL can generally be equal to the longitudinal extension PL of the primary absorbent member 30. The transverse width SW P can generally be wider than the transverse width PW of the member primary absorbent 30. The secondary absorbent member 50 has longitudinal sides 21 and transverse ends 22. In a preferred embodiment shown in Figure 1, a pair of fins 33 extend outwardly from longitudinal sides 21 in the central region 28 The secondary absorbent member 50 preferably comprises a fluid-permeable sheet or body facing sheet permeable to fluid 52, a waterproof sheet underwear garment to the »Fluid or fluid impermeable backsheet 54 attached to the topsheet 52, and a secondary absorbent element 56 positioned between the topsheet 52 and the backsheet 54. The topsheet 52 may be any fluid-permeable material commonly used in sanitary napkins, disposable diapers, and the like. Can be any of the materials described above while being useful in the top sheet 32 of the primary absorbent member 30. A preferred top sheet 52 comprises a film formed with openings. Films formed with openings for the upper daughter are preferred because they are permeable to body exudates and not yet absorbent and . have a reduced tendency to allow fluids to pass back through and rewet the user's skin. Therefore, the surface of the formed film that is in contact with the body remains dry, thereby reducing the staining of the body and creating a more comfortable feeling for the user. Suitable shaped films are described in U.S. Patent No. 3,929,135 issued to Thompson, December 30, 1975; Patent of the United States No. 4,324,246 issued to Mullane et al., April 13, 1982; Patent of the United States No. 4,342,314 issued to Radel et al. On August 3, 1982; U.S. Patent No. 4,463,045 issued to Ahr et al. On July 31, 1984 and U.S. Patent No. 5,006,394 issued to Baird on April 9, 1991. Each of these patents is incorporated herein by reference. The preferred top sheet for the primary absorbent member is a formed film described in one or more of the patents above and marketed in sanitary napkins by Procter & gamble Company of Cincinnati, Ohio as "DRI-WEAVE". The absorbent element 56 can be any absorbent material commonly used in sanitary napkins, disposable diapers and the like. It can be any of the materials described above while being useful in the absorbent core 34 of the primary absorbent member 30. As a practical matter, most of the fluids? body fibers are absorbed by and are contained within the absorbent core 34 of the primary absorbent member 30. A greater function of the primary absorbent member 50 is to protect the wearer's undergarments against soiling by absorbed fluids that can be expelled from the absorbent member. primary 30 or that may inadvertently deviate from the primary absorbent member 30. The overall absorbent capacity of the absorbent member 56 may therefore be somewhat less than that of the absorbent core 34. Because the absorbent core 34 is • preferably proposed to absorb most of substantially all of the • body fluids during use, its absorbing capacity will be for some reason, if not significantly greater than that of the absorbent member 56. 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 may be, and more preferably is, for some reason thin and less bulky than the absorbent core 34. Because the absorbent member 56 has different requirements than the absorbent core 34, it can be formed of different materials. For example, multiple or single folds of tissue paper as commonly used in terry cloth or toilet paper may be used to form the absorbent element 56. Preferably, the absorbent member 56 is formed from about 1 to about 5 folds of tissue paper. The tissue paper comprises one or more folds having a basis weight of from about 24 to about 48 grams per square meter and a bulk density of from 0.10 to about 0.12 grams per cubic centimeter as was done by the process described in U.S. Patent No. 3,301,746 issued to Sanford and Sisson on January 31, 1967 and whose patent, which is hereby incorporated by reference, has been found to be very satisfactory for use as an absorbent 56. The latex and moisture resistant resins fasteners can be, and preferably are, used to provide additional strength to the tissue paper used in the absorbent element. The tissue paper made by the process described in U.S. Patent No. 3,994,771 issued to Morgan et al. On November 30, 1976, and whose patent is incorporated herein by reference, can also be used for good advantage as an absorbent 56 The absorbent element may have any convenient shape that includes, but is not limited to, oval, hourglass, dog bone, asymmetric, etc. In a preferred embodiment shown in Figure 1, the absorbent member 56 is generally rectangle-like surrounded by longitudinal edges 55 and transverse edges 57. The absorbent member 56 also has a longitudinal extension CL, a transverse width CW and a thickness CT. The longitudinal extension CL may be shorter than the longitudinal extension PL and SL. The extension CL can be from about 10 about 33 cm, preferably from about 15 to about 33 cm. The transverse width CW may be wider than the transverse width PW of the primary absorbent member 30 at least in the central region 28 (e.g., the crotch region corresponding to the crotch region of the undergarment when using the compound sanitary napkin). More preferably, the transverse width CW may be wider than the transverse width PW of the primary absorbent member 30 throughout the entire length. The width CW can be from about 3 to about 12 cm, preferably from about 4 to about 10 cm, more preferably from about 5 to about 8 cm. Figures 10 and 11 show the alternative form of the composite sanitary napkin and the secondary absorbent element. The composite sanitary napkin 90 shown in Figure 10 has a narrower portion (e.g. the crotch region) to the core in the longitudinal direction, and has no fins on both longitudinal sides. The secondary absorbent member 95 of the composite sanitary napkin 90 may have a patch-like absorbent member 91 generally placed in the crotch region as shown in Figure 10. The patch-type absorbent member 91 may have an oval shape which has the widest portion to the nucleus in the longitudinal direction. The wider portion of the absorbent member 91 may preferably coincide with the narrower crotch region of the sanitary composite pad 90. The sanitary composite pad 92 shown in Fig. 11 has rear fins 94 in addition to the fins 33 placed over the region of the bag. crotch. The secondary absorbent member 96 of the composite sanitary napkin 92 shown in Figure 11 may have a formed absorbent member 93 having the narrowest portion in the crotch region of the sanitary napkin 92. The narrower portion of the absorbent member formed 93 may preferably coincide with the crotch region of the composite sanitary napkin 92. In both embodiments, the transverse width CW is preferably wider than the transverse width PW of the primary absorbent member 30 in the crotch region of the composite sanitary napkin. Preferably, the width PW can be less than about 80% of the width CW. More preferably, the width PW can be less than about 70% of the width CW.

The topsheet 54 is impervious to fluid (eg, menstrual bleedings and / or urine) and preferably is made of a thin plastic film, although other flexible waterproof materials may also be used.

P fluid. As used herein, the term flexible refers to materials that are docile and that easily conform to the contours and general shape of the human body. In use, the backsheet 54 is interposed between the absorbent member 56 and the underwear garments of the wearer's underwear. The function of the topsheet 54 is to prevent exudates that can be expelled from or inadvertently deviating from the primary absorbent element 30 and that the exudates absorbed and contained in the element.

Absorbent 56 come in contact and soak the underwear items of! user. The topsheet 54 may then comprise a woven or non-woven material, polymeric films, such as polyethylene or polypropylene thermoplastic films, or composite materials such as a film-covered nonwoven material. Preferably, the backsheet is a polyethylene film having a thickness of from 0.012 mm (0.5 mil) to about 0.015 mm (2.0 mil). Polyethylene films? .exemplars are manufactured by Clopay Corporation of Cincinnati, Ohio, under the designation P-18-0401 and by Ethyl Corporation, Visqueen Division, of Terre Haute, Indiana under the designation XP-39385. The backsheet is preferably surrounded and / or finished in matt to provide a more similar appearance to the underwear article.

Additionally, the backsheet can allow the vapors to escape from the absorbent member 56 (eg, breathable) while still preventing the exudates from passing through the backsheet 54. The shape of the secondary absorbent member 50 may be generally rectangular surrounded along the longitudinal sides 21 and the transverse ends 22.

Other convenient forms include but are not limited to ovals, hourglass, dog bone, asymmetric, etc. the secondary absorbent core 50 may have fins 33 each of which are adjacent to and extend laterally from the longitudinal sides 21 of the secondary absorbent member 50 in the central region 28 as shown in Figure 1. The fins 33 are configured to adorn the user's panties in the crotch region in such a way that the fins are arranged between the edges of the wearer's panties and the wearer's thighs. The fins 33 serve at least two purposes. First, the flaps 33 help to prevent staining of the wearer's body and of the panties by menstrual fluids, preferably by forming a double-walled barrier along the edges of the panty. Second, the fins 33 are preferably provided with 1J0 fastening means, as described above, on the front surface a! A > Undergarment such that the flaps 33 can be folded posteriorly underneath the panty and fastened to the front face of the panty underwear. In this way, the fins 33 serve to keep the sanitary napkin 20 properly placed in the pantyhose. In a preferred embodiment, the fins 33 are comprised of a sheet? upper and a back sheet. Additionally, the flaps 33 are preferably unitary to the sheets of the secondary absorbent element 50. In other words, the topsheet 52 of the secondary absorbent member 50 and the backsheet 54 of the secondary absorbent member can simply extend laterally outwardly. from the longitudinal sides 21 to form the fins 33. However, the fins 33 need not be unitary with the secondary absorbent member 50, but may be • separate elements that are fixed to the secondary absorbent member 50. Additionally, the fins 33 may be comprised of a single substrate or other laminated configurations. However, it is preferable that the fins 33 have a fluid-impermeable backsheet to prevent the exudates that reach the fins from soiling the edges of the user's panties.

Additionally, it is preferable that the fins 33 may be provided with an absorbent member, at least for a point beyond the edges of the wearer's panties. Theoretically, only a relatively small amount of fluids P menstruals should reach fins 33, therefore, only one amount is desired relatively small absorbent material. Accordingly, the fins 33 preferably have at least some absorbent material in order to prevent any exudate reaching the fins 33 from being able to flow further away from the unprotected areas. The absorbent material may be a tissue or an extension of the absorbent element 56. Preferably, the absorbent material in the fins 33 is 1. 0 relative highly flexible. ? A number of sanitary napkins having suitable or adaptable fins for use with the secondary absorbent member 50 of the composite sanitary napkin 20 are disclosed in U.S. Patent No. 4,687,478 issued to Van Tilburg, August 18, 1987; United States Patent No. 4,589,876 issued to Van Tiiburg on May 20, 1986; and the Patent of the States? No. 4,608,047 issued to Mattingly on August 26, 1986. Each of these patents is incorporated herein by reference. Optionally, the secondary absorbent member 50 may comprise components that naturally surround the edges of a wearer's panties. A sanitary towel that has components that naturally enveloping the sides of a wetsuit user's panties for use with the secondary absorbent member 50 of the composite sanitary napkin 20 is disclosed in U.S. Patent No. 5,584,829 issued to Lavash et al. On December 17, 1996 and U.S. Patent No. 5,558,663 issued to Weinberger et al. on September 24, 1996. Disclosures of publications The foregoing are incorporated herein by reference.

Preferably, the secondary absorbent member 50 is provided with a support means or attachment means, such as adhesive means 58 and 62. The adhesive attachment means 58 provides a means for securing the composite sanitary towel 20 in the portion of the crotch of the underwear garment or pant of the user. The adhesive attachment means 62 provides a means for securing the fins 33 of the sanitary napkin 20 to the side facing the underwear of the panty so that the vanes 33 can be folded down posteriorly to the underpants. panties Therefore, a portion or all of the exterior or surface facing the body of the upper sheet 54 may be covered with adhesive. In a preferred embodiment, at least a portion of the adhesive 58 may be placed on the undergarment surface of the upper sheet 54 along the longitudinal direction of the secondary absorbent member 50 and may have, but not be limited to, a line shape along the longitudinal direction. The adhesive 62 may be placed on the surface of the undergarment of the backsheet 54 of the flaps 33 and may have, but not be limited to, a rectangle shape. Any adhesive or glue used in the art for such purposes can be used there for the adhesive, being preferred with pressure sensitive adhesives. Suitable adhesives are Century A-305-IV manufactured by Century Adhesives Corporation of Columbus, Ohio, and Instant Lock 34-2823 manufactured by National Starch and Chemical Company of Bridge ater, NJ. Suitable adhesive fasteners are also described in U.S. Patent No. 4,917,697. The pressure sensitive adhesive is typically covered with a removable release protector 59 and 63 in order to keep the drying adhesive away from adhering to a surface other than the crotch portion of the panty before use. Suitable release protectors are also described in U.S. Patent No. 4, 917,697 above referenced. Any commercially available removable release protector commonly used for such purpose can be used herein. Non-limiting examples of removable release protectors are BL30MG-A Silox E1 / 0 and BL30MG-A Silox 4P /, both are manufactured by Akrosil Corporation of Menasha, Wl. The composite sanitary napkin 20 is used by removing the release guard 59 and 63 and thereafter placing the sanitary napkin 20 in a pantyhose in such a manner that the adhesive 58 and the adhesive 62 contact the panty. The adhesives 58 and 62 hold the sanitary napkin in its position in the panther during use. The top sheet 52 and the back sheet 54 of the absorbent member Secondary 50 can be joined together in any possible way. The top sheet? 52 may be attached to the backsheet 54 along the periphery 64 or may be attached to the backsheet in all regions excluding the region where the absorbent element 56 exists. In the region where the absorbent member 56 exists, the upper sheet 52 and the rear sheet 54 each may be attached to the absorbent element 56.

Convenient ways include, but are not limited to, applying pressure, heat, heat? and pressure or adhesives such as line adhesives, spiral adhesives and knit adhesives. In a preferred embodiment shown in Figure 1, the upper sheet 52 and the back sheet 54 can be joined by applying heat along the periphery 64 of the sanitary napkin 20. The length SL, the width SW and the thickness ST of the absorbent member • Secondary 50 can be of any convenient dimension. The length SL is preferably from about 5 to 35 cm, more preferably from about to 35 cm, and more preferably from about 20 to 35 cm. Preferably, the length SL of the secondary absorbent member 50 can generally be equal to length PL of the secondary absorbent member 30. The width SW is preferably from about 4 to 13 cm, more preferably from about 5 to about 11 cm, and most preferably from about 6 to about 9 cm. The secondary absorbent member 50 is preferably relatively thin and flexible. The thickness ST preferably is from about 0.1 to 2.0 cm, more preferably from about 0.1 to 1.0 cm, and most preferably from about 0.1 to 0.4 cm. Preferably, the thickness ST of the secondary absorbent member 50 may be less than the thickness PT of the primary absorbent member 30. The secondary absorbent member (base member) 50 may optionally be manufactured without an absorbent member 56. Because most if not all bodily fluids are preferably absorbed by and are contained within the absorbent core 34 of the absorbent core 34 of! primary absorbent member 30. Base member 50 only needs to protect the user's undergarment from staining by relatively small amounts of fluid which can be expelled from the primary absorbent member 30 or which can be inadvertently diverted from the primary absorbent member 30. Accordingly, since expected amounts of fluids which may come into contact with the base member are relatively small, a base element may not be necessary to contain the fluids within the base member 50 and prevent them from soiling the underwear of the user. To form the composite sanitary napkin 20, the primary absorbent member 30 and the secondary absorbent member 50 are joined by attachment means generally indicated 70 in Figures 1-3, 6 and 7. The attachment means 70 serves to attach the member primary absorbent 30 and secondary absorbent member 50 within composite sanitary napkin 20 with sufficient tenacity so that primary absorbent member 30 and secondary absorbent member 50 are not disconnected during use. Any convenient attachment means such as adhesive fastening, pressure fastening, heat fastening, or ultrasonic fastening can be used. The primary absorbent member 30 may be fixed to said secondary absorbent member 50 by the attachment means 70 along the entire common length. Alternatively, the primary absorbent member 30 may be fixed to said secondary absorbent member 50 in a continuous manner along the common length. In a preferred embodiment shown in Figures 1-3, 6 and 7, the primary absorbent member 30 is fixed to the secondary absorbent member 50 by the attachment means 70 which includes a first attachment means 72 and the second attachment means 74. The first attachment means 72 includes application of heat to the transverse ends 22 and 25 overlapped in a plurality of discrete points. By applying pressure to the overlapped transverse ends 22 and 25, the topsheet 32 of the primary absorbent member 30, the topsheet 52 and backsheet 54 of the secondary absorbent member 50 are fixed together at the overlapped transverse ends 22 and 25. Alternatively , the first attachment means 72 may include application of heat at a plurality of discrete points, line or area. While the application of heat works well to join smooth layers, heat transfer between the layers to join the layers can be worse as the layers become thinner. The preferred embodiment shown in Figure 2, because the longitudinal sides 45 of the upper sheet 32 of the primary absorbent member 30 are overlapped to each other below the absorbent core 34, five layers comprising layers of the upper sheet are joined. 32, a layer the upper sheet 52 and a layer of the rear sheet 54. If the upper sheet 32 comprises two layers having the formed film 36 and the non-woven material 37, eight layers have to be joined together as shown in FIG. Figure 7. While the layers become thin, it is preferable to apply pressure, or pressure and heat to join the layers. Alternatively, the first attachment means 72 may include the application of adhesive between the layers, or the application of combination of pressure, heat and adhesive.

The second attachment means 74 includes application of adhesive such as spiral adhesive, line adhesive or knit adhesive between the primary absorbent member 30 and the secondary absorbent member 50. As shown in Figure 6, in a preferred embodiment, the spiral adhesive 74 as the second attachment means is applied continuously between the primary absorbent member 30 and the secondary absorbent member 50. When it is desired that the primary absorbent member 30 and the secondary absorbent member 50 be fixed together throughout of the entire common length, it is preferable to use the spiral adhesive because the application of the spiral adhesive prevents the absorbent members 30 and 50 from being fixed intermittently. The primary absorbent member 30 and the secondary absorbent member 50 are preferably fixed in the AW width narrower than the transverse width PW of the primary absorbent member 30. Preferably, the width AW can be 70% of the width PW. This allows the primary absorbent member 30 to conform to the shape of the female body and to the movement of the female body. The composite sanitary napkin 20 may include a variety of alternatives and / or options. The primary absorbent member 30 may comprise a fluid barrier 35 as shown in Figure 8. The fluid barrier 35 may be placed on the side of the lower half of the absorbent core 34 to inhibit the fluid from transferring from the absorbent core. towards the secondary absorbent member 50. The fluid barrier 35 tends to contain absorbed fluids within the absorbent core 34 and may be constructed of materials having the same properties as those of the fluid impermeable upper sheet on the absorbent secondary member 50 described above. . The fluid barrier 35 may extend along the entire length of the primary absorbent member 30 or may extend only in the central region 28 of the primary absorbent member 30, or in the first end region 27 and the second end region 29.

Alternatively, the topsheet 32 of the primary absorbent member 30 may comprise a sheet having a fluid-permeable zone 76 and a fluid impervious zone 78. When the topsheet 32 comprises a formed film, the fluid-permeable P zone 76 It can be an area with openings and the waterproof area fluid 78 can be a zone without openings. As shown in Figure 9, the fluid permeable zone 76 of the topsheet 32 can be placed on the lower half of the side of the absorbent core 34 to inhibit the transfer fluid from the absorbent core to the secondary absorbent member 50. The fluid-permeable zone 76 tends to contain the absorbed fluids within the absorbent core 34. The composite sanitary napkin 20 may be extensible. The components Individual P's of the primary absorbent member 30 and the secondary absorbent member 50 may be comprised of components that are extensible (preferably capable of elongating) particularly in the longitudinal direction in which the sanitary composite pad 20 is worn. Preferably, the composite towel 20 is capable of from . Lay out in the longitudinal direction between about 15% and about 40% of the? length not elongated. This extensibility provides better fit in use, comfort, and reduced staining when the sanitary composite pad is attached to the wearer's undergarments. Preferably, the secondary absorbent member 50 is comprised of components that are also extensible in the lateral direction when is dressed sanitary towel 20 dresses. Preferably, the composite sanitary napkin 20 is elongated layers in the lateral direction between about 15% and about 40% of the non-elongated length. The topsheet 32 of both primary absorbent member 30 and secondary absorbent member 50 may comprise a three dimensional, elastic, fluid permeable polymeric web, as disclosed in US Pat.

U.S. Patent No. 5,366,782 issued to Curro and others on 22 November 1994 and which is here incorporated by reference. A particularly preferred extensible top sheet is an extended adhesive film known as Formula # 198-388 manufactured by Findley Adhesives Company of Wauwatosa, Wisconsin. Sanitary napkins having extensible components are described in the Patent P of the United States No. 5,611,790 issued to Osborn and others on March 18, 1997, and PCT publication No. WO93 / 01786 published February 4, 1993 to the names of Osborn et al. The disclosures of the preceding publications are incorporated herein by reference. The sanitary compound pad 20 can be shaped with the female body. Because the primary absorbent member 30 preferably has the shape and size such that it will fit together with the labial area, the primary absorbent member 30? will reside at least partially inside the lips. As shown in figure 10, . When the composite sanitary napkin 20 is worn by the woman and is supported by an undergarment 82, a portion of the primary absorbent member 30 will preferably fit together with the area of the lips during use. In contrast, a major function of the secondary absorbent member 50 is to protect the garment ) inside against staining by absorbed fluids which can be expelled from the primary absorbent member 30 or which can inadvertently be diverted from the primary absorbent member 30. The secondary absorbent member 50 is preferably remote from the body such that the secondary absorbent member 50 do not will touch the body. The shape of the primary absorbent member 30 has the shape and size so that the secondary absorbent member 50 is remote from the body to secure the space 80 between the body and the secondary absorbent member 50. This allows the longitudinal sides of the secondary absorbent member 50 to remain White. The sanitary composite pad 20 can absorb body fluids. The The total absorbent capacity of the primary absorbent member 30 should be compatible with the proposed exudate filler for the sanitary composite pad 20. Additionally, the absorbent capacity of the absorbent core 30 can be varied to accommodate users that vary in the expected amount of exudate fluid. . Typically, exudate fluid of between 2 and 20 grams is expected during a normal period of sanitary towel use. When the composite sanitary napkin 20 is exposed to such a fluid load of between 2 and 20 grams, the primary absorbent member 30 can absorb 80% of the fluid between 2 and 20 grams in a current use situation. Additionally, when the composite sanitary napkin 20 is exposed to fluid loading of between 20 and 30 grams exceeding the normal capacity, the primary absorbent member 30 can absorb 70% of the fluid between 20 and 30 grams. Because the primary absorbent member 30 has ability to absorb a! minus 70% of discharged fluid between 2 and 30 grams P when the sanitary napkin is applied to the female body and used, the primary absorbent member 30 having such a capacity allows the longitudinal sides of the secondary absorbent member 50 to remain white. This provides consumers with a visual signal that increases confidence in the absorbency and performance of run-off tests of the sanitary napkin product. The primary absorbent member 30 preferably comprises hydrogel forming polymers to increase the absorption capacity of the primary absorbent member 30. The largest hydrogel forming polymers that the primary absorbent member contains, the greater absorption capacity that the primary member 30 has.

Because the hydrogel forming polymers are sweated after the polymers absorb fluids, the primary absorbent member 30 expands in the transverse direction and thickness. This expansion of the primary absorbent member 30 provides more comfort and fit between the primary absorbent member 30 and the female body. However, many polymers that form hydrogel cause problems of blocking by gel resulting in decreased absorption ability. More importantly, many hydrogel-forming polymers, when absorbing fluids, make the primary absorbent member 30 a straight cylinder shape that will not readily bend without high bending force. When this occurs, the primary absorbent member 30 can not adjust the shape of curvature of the female body because the P transverse ends of composite sanitary napkin 20 tend to be away from the body.

For the foregoing, appropriate amounts of hydrogel forming polymers are preferred from the viewpoint of the absorption, compliance and adjustment ability of the composite sanitary napkin having the primary absorbent member. It may be desirable to provide a sanitary composite pad that has a primary absorbent member with varying degrees of width or gauge throughout. its longitude. For example, can the primary absorbent member be relatively more? thin in the central region as opposed to the extreme regions. Alternatively, the primary absorbent member may be relatively thinner in the central region as opposed to the end regions. Now, referring to Figures 13-17, there is a flow chart 200 simplified, preferred, illustrating the assembly of the composite sanitary napkin 20? shown in Figure 4. As shown in Figure 13, the process 200 for making the sanitary composite pad 20 may include several steps; a processing process 202 of the primary absorbent member (processing section of the primary absorbent core), a processing process 204 of the secondary absorbent member (section of processing of the secondary absorbent), a combining process 206 of the primary absorbent member and the secondary absorbent member (combination section) 206, and a cutting process 208 (cutting section). The processing process 202 of the primary absorbent member can additionally include a feed process 210 of the sheet material Upper section (feed section), a process for providing the primary absorbent element 212 (supply section), a wrapping process 214 (wrapping section) and a dispatch process 216 (shipping section). In the feed section 210, a formed film web 220 and P a nonwoven web 222 are fed continuously from the rollers of feed 224 and 226 respectively towards a joining unit with the top sheet 228, in such a way that the non-woven web 222 is superimposed on the weft of the formed web 220. The continuous web of the formed web 220 and the continuous non-woven web 222 are joined by the linking unit 228 to make the continuous web of the upper sheet 230. As shown in Figure 14, the joining unit 228 has a pattern roller 232 and an anvil roller 234. The pattern roller 232 has a series of protrusions Pattern P 236 on the surface of the pattern roller 232. One or both of the pattern rolls 232 and / or the anvil roller 234 are tilted toward each other with a load • predetermined pattern elements in the gripping space between the rolls 232 and 234. Feeding the continuous web of the formed film 220 and the non-woven continuous web 222 to the gripping space of the joining unit 228 as shown in Figure 14, the? two frames are joined at discrete points 49 (reference to figures 5 and 16) as 230 along the lateral sides 45 of the weft of the continuous upper sheet 230 applying pressure. A pattern of discrete points 49 corresponds to the pattern of the protuberances 236 of the roller 232. This union between the continuous web of the formed film 220 and the The continuous non-woven web 222 allows stable transfer of the attached web. Alternatively, adhesive such as line adhesive, spiral adhesive or knit adhesive, ultrasonic bonding or heat bonding can be used to bond the formed film web 220 and the nonwoven web 222. The continuous top web 230 is fed. towards a first application section of adhesive 238 where a intermittent spiral adhesive 240 on the side facing the absorbent core of the continuous weft of the topsheet 230, as shown in Figure 16, before providing the continuous weft of the topsheet 230 with a discrete absorbent core 242. Alternatively , the adhesive applied to the continuous weft of the topsheet 230 can be replaced by knit adhesive, spray adhesive, line adhesive, or any other known method so as to be able to provide the preferred adhesive dimension in the length and width of the adhesive . Preferably, the width of the adhesive is preferred to maintain the narrowest dimension compared to the width of the absorbent core 242. The continuous web of the topsheet 230 is fed to the provision section of the primary absorbent element 212 by changing the direction upward. Provision section 212 includes a cloud chamber 246 and a delineating drum 244 for making the discrete absorbent core 242 comprising hydrogel forming fibers and polymers. The mixture of hydrogel-forming polymers fibers transferred from cloud chamber 246 to delineating drum 244 forms a discrete shape of absorbent core 242 via vacuum248 in delineating drum 244 which has a designated number of discrete receptacles 250 about its surface. As each discrete absorbent core 242 on the delineating drum 244 reaches a point of contact with the continuous web of the topsheet 230, the discrete absorbent core 242 is transferred from the delineating drum 244 onto the surface of the upper continuous web 230, as shown in FIGS. 13 and 16, where the intermittent spiral adhesive 240 is previously applied. The discrete absorbent core 242 is transferred in such a way that the body facing side of the discrete absorbent core 242 faces the continuous weft of the absorbent core 242. the upper sheet 230 and in such a way that the secondary absorbent member facing the side 243 (reference to figure 16) of the discrete absorbent core 242 is facing upwards. This transfer is achieved by means of vacuum 252 in the transfer drum 254 and air exhaust 256 in the delineating drum 248 while the continuous web of the upper sheet 230 with the spiral adhesive 240 travels around the surface of the transfer drum 254 Additionally, while the top sheet web 230 travels around the surface of the transfer drum 254, the continuous web of the top sheet 230 P changes the direction generally horizontally such that the core Discrete absorbent 242 is easily held on the surface of the continuous web of the topsheet 230 by its own weight. When the discrete absorbent core 24 is transferred to the continuous web of the topsheet 230, a first interval S is provided between the preceding discrete absorbent core 242 and the successive discrete absorbent core 242. The discrete absorbent core 242 secured to and carried by the continuous web of the upper sheet 230 then goes through rollers to satin 260 that P have a fixed free space. The discrete absorbent core 242 compresses the satin rolls 260 to a uniform gauge prior to the wrapping process 214. Alternatively, the continuous weft of the topsheet 230 can be fed to the point between the satin rolls 260 and the second application section. of adhesive 262 after adhesive is applied to the first application section? of adhesive 238. In such a case, the continuous web of the topsheet 230 may not go through the provision section of the primary absorbent element 212. To be transferred, the discrete absorbent core 242 may be shipped to the satin rolls. 260, and then encounter the continuous frame of the upper sheet 230 in the point after the satin rolls 260. The cloud chamber 246 can only feed fibers onto the delineating drum 244 to make the discrete absorbent core 242 that only includes fibers. Alternatively, it is necessary, the hydrogel forming polymers can be added to the discrete absorbent core 242 which only includes fibers after the section of Provision of the primary absorbent element 212. Hydrogel-forming polymers can be added prior to the wrapping process 214 (eg, before the folding section 246). After the discrete absorbent core 242 is compressed, in the P wrapping process the continuous weft of the upper sheet 230 with the absorbent core discrete 24 is fed to a second adhesive application section 262. In the second adhesive application section 262, a continuous line adhesive 51 (reference to Figures 4, 5 and 16) is applied on a longitudinal side 45 of the continuous web of the topsheet 230. The continuous web of the topsheet 230 is then fed to a conventional bend section 264. In the section of folded 264, and where the longitudinal sides 45 of the continuous web of the sheet Upper P 230 are bent upwardly on the upward facing base member 243 of the discrete absorbent core 242 such that the longitudinal sides 45 overlap each other. So the continuous web of the topsheet 230 wraps the discrete absorbent core 242. At the exit of the bend section 264, the line adhesive adhesive 51 allows the continuous weft of folded upper sheet 230 to create and maintain permanent fixation by fixing both longitudinal sides 45 of the continuous weft of upper sheet 230 having the discrete core 24 inside, and to make a continuous weft of the member primary absorbent 266 as shown in FIG. 16. Permanent fixation is preferred for plague process to maintain stable dimension of the continuous web of the primary absorbent member 266 at the time it is transferred downstream. Alternatively, any known method of attachment such as spot adhesives, spray adhesives or spiral adhesives can be used. Then the continuous weft of primary absorbent member is transferred 266 downstream by means of horizontal impulse conveyors 216 (by example in the dispatch section). These impulse conveyor belts 216 can be replaced by the impulse conveyor belts by vacuum or immobile plate as well as the immobile plate as long as the stretch tube of the weft is kept stable. If the distance between the wrapping section 214 and the combination section 206 is short, the shipping section 216 may not be necessary. In such a case, the wrapping section 214 may include a shipping section for dispensing the continuous web of the primary absorbent member 206. The process for making the secondary absorbent member (base member) 204 may additionally include a secondary material of absorbent member that feed the process (material feed section) 270 and a joining process (joining section) 272. In the material feed section! 270, a top sheet web 274, a web of secondary absorbent member 276, and a backsheet web 278 are fed continuously from the feed rollers 280, 282 and 284 respectively to the junction section 272. The web backsheet 278 is fed into a third adhesive application section 286 where an adhesive line adhesive is applied on the side of the continuous web of the backsheet 278 facing the secondary absorbent element before providing the continuous web of the adhesive. backsheet 278 with secondary absorbent element 276. Alternatively, the adhesive applied to the continuous web of backsheet 278 can be replaced by spot adhesive, spray adhesive, spiral adhesive, or some other known method. As explained above, in one of the preferred embodiments, the secondary absorbent element 276 may be a tissue layer. In the preferred embodiment of Fig. 13, the secondary absorbent element 276 can be prepared as a continuous rolled web. Alternatively, the secondary absorbent element 276 can be fed as a discrete absorbent element. As shown in Figure 13, the weft of the secondary absorbent member 276 is fed to a conventional space and cut section 290. In the space and cut section, the weft of the secondary absorbent member 276 is cut into discrete secondary absorbent elements 290. providing a second interval T (reference to figure 16) between the preceding discrete secondary absorbent element 290 and the secondary absorbent element »Successive discrete 288. The discrete secondary absorbent element 288 is then placed over the continuous web of the backsheet 278 and secured to the continuous web of the backsheet 278 by the applied line adhesive. The discrete secondary absorbent element 288 is then interposed between the continuous web of the topsheet 274 and the continuous web of the backsheet 278 to make a continuous web of laminate 292 comprising the continuous web of the topsheet 274, the continuous web of backsheet 278 and discrete secondary absorbent element 288.

Preferably, adhesive such as line adhesive, knit adhesive, spray adhesive or spiral adhesive can be applied to the continuous web of the topsheet 274 before the discrete secondary absorbent element 288 is interposed between the continuous web the upper sheet 274 and the continuous web of the back sheet 278. After making the continuous web of laminate 292, it passes through the joining section 272. The joining section 272 makes a permanent bond between the continuous theme of the top tie 274 and the continuous web of the backsheet 278 to make a continuous web of secondary absorbent member 293. Here in the joining process any known method, such as heat bonding 291, can be used as shown in FIG. shows in Figure 16, applying heat along the periphery of the secondary absorbent member 50. Alternatively, the method may include application of heat or heat and pressure. Additionally, the adhesive can be applied to the continuous web of the topsheet 274 and / or to the continuous web of the backsheet 278 as a joining method. The continuous web of the secondary absorbent member 293 then transfers current below by, for example, impulse conveyor belts by vacuum. As shown in Figure 13, the continuous weft of the secondary absorbent member 293 is sent to the continuous weft of the primary absorbent member 266 from the top with respect to the conveyance of the web in the machine direction 266 because the The continuous web of the primary absorbent member 266 runs in such a manner that the side of the continuous web of the primary absorbent member 266 facing the secondary absorbent member generally faces upwards. Therefore, the continuous web of the secondary absorbent member 293 covers the longitudinal fixed sides 45 of the primary absorbent continuous web 266. After the bonding section 272, the release shields 59 and 63 shown in Figure 4 can be applied over the continuous web of the sheet J3. rear 278 of the web of the secondary absorbent member 293. The release shields 59 and 63 may have adhesives such as line adhesives on the surface facing the continuous web of the backsheet 278. adhesive is maintained with the backsheet when release protectors 59 and 63 are removed for use. The blending process 206 may additionally include an adhesive application process (adhesive application section) 294 and a pressure application process (pressure application section) 296. In the application process of adhesive 294, it is applied a continuous spiral adhesive 74 by a fourth adhesive application section 294 on the continuous web 0 of the primary absorbent member 266 while the continuous web of the primary absorbent member 266 is transferred by an upwardly inclined vacuum-driven conveyor belt 295. Alternatively, any known method such as line adhesive, knit adhesive or spray adhesive can be used. Preferably, the spiral adhesive 74 is applied in such a manner that adhesive is sandwiched by the continuous branch of the primary absorbent member 266 and the continuous weft of the secondary absorbent member 293. Preferably, the width of the spiral adhesive 74no extends beyond the Width PW of the continuous web of the primary absorbent member 266. Alternatively, the adhesive 74 may be applied below (e.g., the side of the top sheet) of the continuous weft of the member »Secondary absorbent 293. Then, the continuous web of the primary absorbent member 266 and the continuous web of the secondary absorbent member 293 are sent to the gripping space rollers 298, where both webs 266 and 293 are joined together by the adhesive spiral 74 to make a continuous weft of composite sanitary napkin 300. When the wefts 266 and 293 meet each other in the gripping space rollers 298, arranges that at least a portion of the S interval between the primary absorbent core Discrete P 242 and the second interval T of the discrete sub absorbent element 288 overlap each other as shown in Figure 16. Fixing the overlapped portion X allows the continuous weft of the composite sanitary napkin 300 to have a region where there is no element absorbent to give the composite sanitary towel 20 the transverse ends 18.? The continuous weft of the sanitary napkin 300 is then fed to a pressure application section 2296 as shown in Figure 13. The pressure application section 296 applies pressure at the discrete points 72 to the overlapped portion X throughout of a cross section in such a way that they are combined the continuous web of the primary absorbent member 266 and the continuous web of the secondary absorbent member 293. As shown in Fig. 15, the pressure application section 296 has a pattern roller 302 and an anvil roller 304. The roller of pattern 302 has a series of pattern protrusions 306 on the surface of pattern roller 302. One of both of pattern rollers 302 and / or anvil roller 304 are inclined toward each other with a load of predetermined pattern elements in the gripping space between the rollers 302 and 304. Feeding the continuous weft of the sanitary composite pad 300 to the gripping space of the pressure applying section 296 , the two frames 266 and 296 are combined at the discrete points 72 by applying pressure. A pattern of the discrete dots 72 corresponds to the pattern of the protrusions 306 and 302. This combination at the transverse ends 18 (for example, the overlap portion X) preferably has sufficient resistance to debarking (e.g., non-woven material 222 a the non-woven surface 222). Preferably, such peel strength can be more than 100 grams per inch (100 g / 2.54 cm). This can be achieved by an operation of (1) at least 60,000 psi (4.219 kg / cm2) per grip area pressure, 2) surface temperature of the rollers of 70 ° C - 90 ° C, and 3) interference of the two rollers of 0.05 mm - 0.08 mm.

P It is also preferred that the continuous weft speed of the composite sanitary napkin 300 is controlled at 110 m / min - 155 m / min or more. Optionally, the speeds of the roller surface of the pattern roller 302 and the anvil roller 304 may be different from each other. Additionally, the roll surface speed of the roller of pattern 302 and of anvil roll 304 may be a bit faster (e.g., 0% ^ - 3%) than the continuous weft speed of the composite sanitary napkin 300. Optionally, the adhesive 241 can be applied in the first interval S in order to increase the peel strength between the non-woven surface 222 nonwoven material 222 as shown in figure 16. This adhesive can be applied in the same point of the section of the second application of adhesive 262 before the continuous web of the topsheet 230 is folded. Because both, the continuous web of the primary absorbent member 266 and the continuous web of the secondary absorbent member 293 are arranged to have the same tension being sent continuously before combining, the composite sanitary towel is not stowed yet to be cut into towels discrete toilets. Alternatively, if desired, it may be curved by frames 266 and 293 that have different tensions between them.

The cutting process 208 may include a cutter 302. The continuous toweling web of the composite sanitary napkin 300 is sent to the cutter 302 and cut into a discrete segment having a final shape (e.g., discrete composite sanitary napkin). ). The cutter 302 can be a conventional cutter having a die cutter. Alternatively, any other cutting method can be used. Many alternative methods can be used for the process described above. The bonding process 272 can be performed after the combination process 206 and before the cutting process 208. In such a case, the upper sheet web 274, the secondary absorbent member 288 and the backsheet web 278 can be temporarily joined by any convenient means, such as adhesive prior to the combination process 206. The discrete secondary absorbent member 288 may be provided in the upper sheet 274, instead of being provided in the rear sheet 278. Referring to Figures 18-20, there is another, simplified, preferred process flow 400, illustrating the assembly of the sanitary composite pad 20. As shown in FIG. 18, the process 400 for making the sanitary composite pad 20 may include several steps; a process of making a primary absorbent member (processing section of a primary absorbent member) 202, a material feeding process of the secondary absorbent member (secondary absorber feeding section) 402, a combination process (combination section) 404 and a cutting process (cutting section) 208. The process of making the primary absorbent member 202 may generally include the same process as that described in Figure 13, such as the feeding process of the upper sheet material (section of feeding) 210, a process of provision of the primary absorbent element (provision section) 212, a wrapping process (wrapping section) 214 and a shipping process (shipping section) 216. Because the function of these processes it may be the same as that of the corresponding process described above, a detailed description may be referred to the description above. The combination section 404 can include the adhesive application process (adhesive application section) 294 and a pressure application process (pressure application section) 406. In the process of feeding the secondary absorbent 402, the continuous web of the top sheet 278 is fed from the feed roll 284 and then the intermittent line adhesive is applied to the third adhesive application section 286. The continuous web of the secondary absorbent member 276 is fed from the feed roll 282 and then it is cut into discrete secondary absorbent elements 288 by the space and cut section 290. The discrete secondary absorbent element 288 is provided in the continuous frame of the backsheet 278 with the second interval T and secured to the previous one by the line adhesive. The continuous web of the topsheet 274 is fed from the feed roll 280. Then, the continuous web of the topsheet 274 and the continuous web of the backsheet 278 with the discrete sub absorbent element 288 are sent separately to the web. merge section 404 as shown in Fig. 18. On the other hand, the weft of the primary absorbent member 266, after the spiral adhesive 74 is applied to it by the two adhesive application section 294, is also sent to the combination section 404. The continuous web of the topsheet 274, the continuous web of the backsheet 27Ó with the discrete secondary absorbent element 288 and the continuous web of the primary absorbent member 266 are in the pressure application section 406. This is arranged so that at least a portion of the first interval S and the second interval T overlap each other in the pressure application section 406 as shown in Figure 19. All the continuous frames 274, 278 and 266 may be combined by applying pressure at the discrete points 72 in the overlapped portion X along the cross section. Additionally, the continuous web of the topsheet 274 and the continuous web of the backsheet 278 can be joined in the pressure application section 406 to make the continuous web of the composite sanitary napkin 300. In such case, the application section pressure 406 may include the application of heat along the periphery of the secondary absorbent member 50 to make heat junctions 291.

Alternatively, the periphery of the secondary absorbent member 50 can be joined by applying only pressure through the pressure applying section 406. The continuous weft of the sanitary napkin 300 can then be sent to the cutting process 208 and cut into discrete segments having a final shape (for example, the discrete composite sanitary towel 20). 10 Referring to Figures 21-23, there is another process flow 500, Simplified, preferred P illustrating the assembly of the sanitary napkin 20. As shown in Figure 21, the process 500 for making the sanitary napkin 20 may include several steps; a process of making a primary absorbent member (processing section of the primary absorbent member) 202, a first process of feeding of the base member (first feeding section of the base member)? 502, a combination process (combining section) 504, a second feeding process of the base member (second feeding section of the base member) 506, a joining process (joining section) 508 and a cutting process ( cutting section) 208. The process of making the primary absorbent member 202 may include generally the same process as that described in FIGS. 13 and 18, such that the process of feeding the upper sheet material (feed section) 210, a process of providing the primary absorbent element (provision section) 212 , a wrapping process, wrapping section) 214 and a shipping process (shipping section) 216. Because the function of these processes may be the same as that of the process As described above, a detailed description could be referred for the description above. The combination section 504 can include the adhesive application process (adhesive application section) 294 and a pressure application process (pressure application section) 506. In the first feed process of the base member 502, the continuous web of the topsheet 274 as a base member is fed from the feed roller 280 and then the intermittent line adhesive is applied to the fifth adhesive application section 510. The continuous web of the secondary absorbent element 276 is fed from the feed roller 282 and cut into discrete secondary absorbent elements 282 by a section of cut and space 512 which can use the same equipment used in the section of cut and space 290 in figures 13 and 18. The secondary absorbent element Discrete 288 is provided in the upper continuous pattern 274 with the second interval T and secured to the previous one by the line adhesive. Then, the continuous web of the topsheet 274 with the discrete sub absorbent element 288 are sent to the pressure application section 506 as shown in Fig. 21. On the other hand, the web of the primary absorbent member 266, after which the spiral adhesive 74 is applied by the fourth adhesive application section 294, it is also sent towards the pressure applying pressure 506. The continuous weft of the upper sheet 274 with the discrete secondary absorbent element 288 and the continuous weft of the adhesive. secondary absorbent member 266 are found in combination section 506. This is arranged so that at least a portion of the first interval S and the second interval T overlap each other in the pressure application section 506 as shown in Fig. 22. The continuous frames 274 and 266 may be combined by applying pressure to the discrete points 72 in the overlapped portion X along the direction t ransversal to make a composite continuous web 510. Then, the composite web 510 is sent to the linking section 508. The continuous web of the back web 278 is fed from the feed roller 284 and then fed to the linking section 508.

After the pressure application section 506, the upper web sheet 274 of the continuous composite web 510 and the continuous web of the back web 278 can be joined to make the continuous web of sanitary napkin Composite P 512 in the joining section 508. The joining section 508 may include the application of heat along the periphery of the secondary absorbent member 50 to perform heat bonding 291. Alternatively, the periphery of the secondary absorbent member 50 can be attached by applying only pressure, or pressure and heat, through the junction section 508. Continuous weft of the composite sanitary napkin 512 can then be sent to the cutting process 208 and cut into discrete segments having a final shape (for example, the discrete composite sanitary towel 20). P Although the continuous plies 220, 222, 274, 276 and 278 are fed from a feed roll, a discrete material can be fed alternately. In Figure 13, a discrete formed film and a discrete nonwoven material can be fed to the joining unit 228 to make the topsheet discrete.

In such a case, a discrete absorbent core can be provided on the discrete top sheet. The discrete top sheet can be folded to wrap the discrete absorbent core to form a discrete primary absorbent member. The discrete primary absorbent member can be sent to the combination section 206. A discrete top sheet, a discrete back sheet and a discrete absorbent core can be fed to the junction section 272 to form a discrete secondary absorbent member. The discrete secondary absorbent member can be sent to the • combination section 206. Then, the discrete primary absorbent member and the discrete secondary absorbent member can be combined. In this alternate method, the cutting section 208 may be unnecessary. While the particular embodiments of the present invention have been described and illustrated, it will be obvious to those skilled in the art that various other changes and modifications may be made without departing from the spirit and scope of the present invention. Therefore, it is intended to protect with the appended claims all those changes and modifications that are within the scope of the present invention.

Claims (10)

1. The present invention relates to a method for manufacturing a sanitary napkin comprised of a primary absorbent member and a base member, the primary absorbent member extending in a longitudinal direction, comprising a primary absorbent member and a fluid-permeable cover superimposed on it. ! primary absorbent member, and the primary absorbent member overlapping the base member, the method comprising the steps of: (a) wrapping the primary absorbent member by the fluid permeable cover to form the primary absorbent member, the primary absorbent element disposed for providing a first predetermined interval, (b) sending the primary absorbent member to a combination section, (c) feeding the base member toward the combination section, (d) applying a means of attachment to at least one of the absorbent member primary and the base member along at least part of the longitudinal direction for fixing the primary absorbent member and the base member, (e) combining the primary absorbent member and the base member by applying at least pressure in the interval.

The method according to claim 1, wherein the fluid-permeable cover comprises two or more layers, each having longitudinal sides, wherein the method further includes the step of joining the layers along the longitudinal sides.

3. The method according to claim 2, wherein the joining step includes the step of applying at least pressure.

4. The method according to claim 1, wherein the application step includes the step of applying the joining means continuously along the longitudinal direction. The method according to claim 1, wherein the combining step includes the step of applying heat in the ranges. A composite sanitary napkin comprising comprising a primary absorbent member and a base member, the primary absorbent member having longitudinal sides and transverse ends, comprising a primary absorbent member and a fluid permeable cover superimposed on the primary absorbent member, and superimposed on the base member, the base member having longitudinal sides and transverse ends, and comprising a sheet facing the fluid-permeable body, a fluid-impervious facing sheet attached to the sheet facing the leather fluid permeable and a secondary absorbent element positioned between the fluid-permeable body facing sheet and the fluid-impermeable garment facing sheet, and the primary absorbent member is fixed to the base member by attachment means comprising first joining means and second joining means, wherein the first joining means include adhesive When applied between the primary absorbent member and the base member along at least part of the longitudinal direction, the second attachment means includes pressure applied to the primary absorbent member and the base member at the transverse ends. The composite sanitary napkin according to claim 6, wherein the first attachment means includes a spiral adhesive applied along the longitudinal direction. The composite sanitary napkin according to claim 6, wherein the longitudinal sides of the fluid-permeable cover overlap each other. The composite sanitary napkin according to claim 6, wherein the fluid-permeable cover of the primary absorbent member comprises a formed film and a non-woven material. The composite sanitary napkin according to claim 9, wherein the formed film and the nonwoven material are bonded together.