CN1602178A - Labial pad having a notch - Google Patents

Abstract

An absorbent article (40) such as a labial pad configured for disposition within the vestibule (42) of a female wearer. The labial pad may be worn by females for catamenial purposes, incontinence protection, or both, and has at least one tab extending from the periphery thereof.

Description

Notched Labial Pads

This application claims U.S. Patent Application No. 60/297001 filed June 8, 2001, U.S. Patent Application No. 60/315255 filed Aug. 27, 2001, U.S. Patent Application No. 60/315255 filed Aug. 27, 2001. 60/315256, priority of US Patent Application No. 10/036635, filed December 31, 2001, and US Patent Application No. 10/036990, filed December 31, 2001.

technical field

The present invention generally relates to absorbent articles, such as labial pads, configured for placement within the vestibule of a female wearer. More specifically, the present invention relates to labial pads having at least one indentation disposed on the periphery of the labial pad.

Background technique

Absorbent articles of various manners and types of constructions for absorbing bodily exudates such as menses are well known. With regard to feminine hygiene products, two basic types of feminine hygiene protection products have been known in the art: sanitary napkins, which are intended to be worn externally in the vulvar area, and sanitary napkins, which are intended to be placed inside the vagina and stop menstruation therefrom. In addition, a hybrid feminine hygiene protection device has been proposed, trying to mix the two structure types into one type of device, but there is no meaningful method within an acceptable range, and the appropriate advantages of known devices are often Overshadowed by the presence of verifiable structural and functional deficiencies. Other insertion devices have also been proposed, such as labial or interlabial devices, which are characterized by having a portion located at least partially outside the wearer's vestibule.

These prior devices do not adequately address consumer demand for smaller devices that are worn between the labia of female wearers. In view of this, several manufacturers have produced labial pads of smaller sizes than the prior devices described above. However, the construction of these devices fails to recognize the importance of cooperating with the anatomy of the female wearer. For example, the protruding geometry of many of these devices results in irritating contact of structural components with highly sensitive areas of female anatomy, such as the floor of the vestibule.

Contents of the invention

The inventors have recognized the shortcomings and problems of the prior art and have conducted intensive research in developing the innovative labial pads of the present invention based on these problems. The inventors have also discovered that placing at least one notch in at least the periphery of the portion of the absorbent article closest to the clitoris, such as the labial pads, minimizes the likelihood of the absorbent article irritating contact with the clitoris.

In one embodiment, an absorbent article is configured for placement within the vestibule of a female wearer. The absorbent article includes an absorbent body. The absorbent body has a longitudinal main axis, a transverse main axis, spaced first and second longitudinal sides and spaced first and second transverse end surfaces, the longitudinal sides together with the transverse end surfaces substantially forming the absorbent body around. The absorbent body of this embodiment includes at least one notch provided in at least one lateral end surface thereof.

In another embodiment, an absorbent article is configured for placement within the vestibule of a female wearer. The absorbent article includes an absorbent body. The absorbent body has a longitudinal main axis, a transverse main axis, spaced first and second longitudinal sides and spaced first and second transverse end surfaces, the longitudinal sides together with the transverse end surfaces substantially forming the absorbent body around. The absorbent body of this embodiment includes at least one notch provided in its periphery.

In yet another embodiment, an absorbent article is configured for placement within the vestibule of a female wearer. The absorbent article includes an absorbent body. The absorbent body has a longitudinal main axis, a transverse main axis, spaced first and second longitudinal sides and spaced first and second transverse end surfaces, the longitudinal sides together with the transverse end surfaces substantially forming the absorbent body around. The absorbent body of this embodiment includes at least one notch provided in at least one longitudinal side thereof.

In an alternative embodiment, an absorbent article is configured for placement within the vestibule of a female wearer. The absorbent article includes an absorbent body. The absorbent body has a substantially circular geometry, radius, perimeter and central axis. The absorbent body of this embodiment has at least one notch provided in its periphery.

In another alternative embodiment, an absorbent article is configured for placement within the vestibule of a female wearer. The absorbent article includes a fluid-permeable cover, a fluid-impermeable barrier, and an absorbent body positioned between the cover and the barrier. The absorbent body has a substantially circular geometry, radius, perimeter and central axis. The absorbent body has at least one indentation provided in its periphery.

In yet another alternative embodiment, an absorbent article is configured for placement within the vestibule of a female wearer. The absorbent article includes a liquid-impermeable barrier and an absorbent body. The absorbent body has a substantially circular geometry, radius, perimeter and central axis.

In yet another alternative embodiment, an absorbent article is configured for placement within the vestibule of a female wearer. The absorbent article includes a fluid-permeable cover and an absorbent body. The absorbent body has a substantially circular geometry, radius, perimeter and central axis. The absorbent body has at least one indentation provided in its periphery.

Description of drawings

The above and other features, aspects and advantages of the present invention will be better understood from the following description, claims and accompanying drawings, wherein:

Figure 1 is a simplified cross-sectional view of the female anatomy used to illustrate the environment in which an absorbent article such as a labial pad is located.

Figure 2 shows a simplified cross-sectional view of the female anatomy to illustrate the external configuration.

Figure 3 is a simplified view illustrating placement of a folded or substantially flat absorbent article having an indentation to be disposed in the periphery of the portion of the absorbent article closest to the female clitoris.

Figure 4 is a top view of an absorbent article having at least one notch disposed in the periphery of the absorbent article.

Figure 5 is a cross-sectional view of the absorbent article taken along line 5-5 in Figure 4 .

Figure 6 is a cross-sectional view of another type of absorbent article.

7 is a top view of an embodiment of an indentation located in the periphery of the same absorbent article as shown in FIG. 4. FIG.

Figure 8 is a top view of another embodiment of a notch in the periphery of another absorbent article.

Figure 9 is a top view of another embodiment of a notch in the periphery of yet another absorbent article.

Figure 10 is a top view of another embodiment of a notch located in the periphery of yet another absorbent article.

Figure 11 is a top view of another absorbent article having at least one notch disposed along the periphery of the absorbent article.

Figure 12 is a cross-sectional view of another type of absorbent article.

Figure 13 is a cross-sectional view of the absorbent article of Figure 12 in a substantially folded position.

Figure 14 is an enlarged view of another absorbent article folded substantially about an axis.

Figure 15 is an exaggerated enlarged view of the absorbent article of Figure 14 folded substantially about an axis and picked up by the wearer's fingers for placement in the vestibule.

Figure 16 is a top view of another absorbent article having at least one indentation disposed along its periphery.

Figure 17 is a top view of yet another absorbent article having at least one notch disposed along its periphery.

Figure 18 is a top view of yet another absorbent article having at least one indentation disposed along its periphery.

Figure 19 is a top view of an alternative absorbent article having at least one notch disposed along its periphery.

Figure 20 is a top view of another alternative absorbent article having at least one notch disposed along its periphery.

Figure 21 is a top view of yet another alternative absorbent article having at least one notch disposed along its periphery.

Figure 22 is a simplified view illustrating the placement of a folded or substantially flat absorbent article having a substantially circular geometry having an indentation to be disposed in the portion closest to the female clitoris In the periphery of absorbent articles.

Figure 23 is a top view of an absorbent article having a substantially circular geometry with at least one indentation disposed along its periphery.

Figure 24 is a cross-sectional view of the absorbent article taken along line 24-24 of Figure 23.

Figure 25 is a top view of an embodiment of a notch disposed along the periphery of an absorbent article.

Figure 26 is a top view of another embodiment of a notch disposed along the periphery of an absorbent article.

Figure 27 is a top view of yet another embodiment of a notch disposed along the periphery of an absorbent article.

Figure 28 is a top view of an absorbent article having at least one indentation disposed along its periphery.

Figure 29 is a top view, partially broken away, of an absorbent article having an alternative embodiment of a notch disposed along its periphery.

Figure 30 is a top view, partially broken away, of an absorbent article having another alternative embodiment notch disposed along its periphery.

Figure 31 is a top view, partially broken away, of an absorbent article having yet another alternative embodiment notch disposed along its periphery.

Detailed ways

See Figures 1 to 31, wherein like reference numerals are used for like parts in each figure. Figures 3 and 22 illustrate the placement of an absorbent article, such as a labial pad, indicated by numeral 40, prior to its placement in the wearer's vestibule, indicated by numeral 42 (see Figure 1), which is Folded or flat structures. The term "labial pad" as used herein refers to a device having at least some absorbent elements, which, during use, is specifically configured to be placed between the labia majora, extending at least partially into the vestibule (42) of a female wearer. For the convenience of subsequent descriptions, the vestibule (42) is considered intralabial from near the caudal point of the anterior labial commissure (44), extending posteriorly to the posterior labial commissure (46) and internally by the floor of the vestibule (48) defined area (not explicitly shown in the figure). Those skilled in the art will fully appreciate that when defining the contours of the vestibule (42) (see Figures 1 and 2) identically to the above, the relative size and shape of the female's labia majora (61) and labia minora (59) have a variation range. However, in order to facilitate the description of the present invention, this difference is not specified, it can be considered that in any case when placing the absorbent article (40) in the vestibule (42), it is necessary to place the absorbent article on the labia majora (61) between the labia minora (59). Caudal to the vestibule (42) is the perineum (50), which opens to the anus (52) in the region of the buttocks (54). Relatedly, located within the vestibule (42) itself are the main urogenital organs, which include the vaginal opening (56), urethral opening (58) and clitoris (60). A brief description of the anatomy has been given above, and for the purposes of the present invention, the vestibule (42) is generally considered to be the area between the posterior labial commissure (46) and the clitoris (60). However, for a more understandable description of the female anatomy part, please refer to Henry Gray's Anatomy of the Human Body, USA, 30th Edition (Carmine D. Clemente ed. Lea & Febiger, 1985), pp. 1571-1581.

The absorbent article (40) described herein is to be placed at least partially within the vestibule (42) for at least partially sorbing fluid exuded from these portions. At this point, although the absorbent article (40) can be used as an incontinence product for absorbing urine, such as the urine produced during incontinence for infants and women, its main function is to absorb the urine through the vaginal opening (56 ) out of menstruation.

Shown in Figure 4 is one form of absorbent article (40) having a major longitudinal axis (L) extending generally in the X direction. The term "longitudinal" as used herein refers to a line, an axis or a direction in the plane of the absorbent article (40) which is generally aligned with the left half of a standing female wearer in use of the absorbent article and The vertical plane (eg, approximately parallel) of the right half of the body. This longitudinal direction is indicated by the X-axis in FIG. 4 . The absorbent article (40) also has a transverse major axis (T). As used herein, the terms "transverse", "lateral" or "Y-direction" generally refer to a line, an axis or a direction perpendicular to the longitudinal direction. This lateral direction is indicated by the Y axis in FIG. 4 . The "Z direction" is typically a line, an axis or a direction generally parallel to the aforementioned vertical plane. This Z direction is represented by a Z axis in FIG. 5 . The term "upper" generally refers to a direction toward the wearer's head, while the terms "lower" or "downward" generally refer to a direction toward the wearer's feet. For ease of description, each layer of the absorbent article (40), for example, the fluid-permeable cover layer (62), the liquid-impermeable barrier layer (64), and/or the absorbent body (66) has an upper surface Or the body-facing surface, the lower surface is also described as the surface opposite the upper or body-facing surface.

Referring to Figure 6, the absorbent article (40) shown therein comprises a fluid permeable cover (62), a liquid impermeable barrier (64) and an absorbent material between the cover and the barrier. body (66). As shown in Figure 7, the absorbent body (66) has a first end region (70), a second end region (72) and a central region (74) between the two end regions. The absorbent article (40) should be sized and shaped such that at least a portion of the absorbent article can be placed within the vestibule (42) of a female wearer. In addition, the absorbent article (40) needs to at least partially absorb and block the flow of menses, urine or other exudates from the wearer's vagina (56) and/or urethra (58).

The absorbent body (66) or absorbent article (40) generally has a geometric shape extending between a first spaced lateral end surface (76) and a second lateral end surface (78), the absorbent body (66) or The absorbent article (40) also includes spaced-apart first (80) and second longitudinal sides (82) in the region between the transverse end faces (76, 78), thus defining the overall geometric shape. The above portions are sometimes collectively referred to as the perimeter (ie, the portions form the periphery).

The shape of the absorbent body (66) is an important factor affecting the overall size and effectiveness of the absorbent article (40). Typically, the absorbent body (66) has a maximum width (W _max ) and a minimum width (W _min ) from one longitudinal side to the opposite longitudinal side along a line generally parallel to the transverse major axis (T). The distance measured by (80, 82), the minimum width is also the distance measured from one longitudinal side to the opposite longitudinal side (80, 82) along a line generally parallel to the transverse main axis (T). The maximum width (W _max ) of the absorbent body (66) is typically not greater than about 30; optionally not greater than about 40; optionally not greater than about 50; optionally not greater than about 60; optionally not greater than about 70; the minimum width ( _Wmin ) of the absorbent body (66) is typically not less than about 30; optionally not less than about 20; optionally not less than about 10; or alternatively not less than about 5 mm. Thus, while the approximate width of the absorbent body may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42), the absorbent body (66) may have a width of not less than about 5 mm to not less than about 5 mm. A width range between greater than about 70mm. Those skilled in the art will readily recognize that certain types of absorbent bodies (66), or certain absorbent articles (40), may have a minimum width (W _min ) equal to a maximum width (W _max ). In these cases, only its maximum width (W _max ) is usually referred to.

The absorbent body (66) also has a maximum length ( _Lmax ) which is the distance measured from one transverse end face to the opposite transverse end face (76, 78) along a line generally parallel to the longitudinal axis (L) . The maximum length (L _max ) of the absorbent body (66) is typically not greater than about 40; optionally not greater than about 50; optionally not greater than about 60; optionally not greater than about 70; optionally not greater than about 80; may be selected to be no greater than about 90; or may be selected to be no greater than about 100 mm. The absorbent body (66) may also have a minimum length ( _Lmin ) measured along a line generally parallel to the longitudinal axis (L) from one transverse end face to the opposite transverse end face (76, 78) distance. The minimum length (L _min ) of the absorber (66) is typically not less than 100; can be selected to be not less than 90; can be selected to be not less than 80; can be selected to be not less than 70; can be selected to be not less than 60; Not less than 50; or optionally not less than 40mm. Thus, although the approximate length of the absorbent body may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42), the absorbent body (66) may have a length of not less than 40mm to not more than Length range between 100mm. Those skilled in the art will readily recognize that certain absorbent bodies (66), or certain absorbent articles (40), may have a minimum length (L _min ) equal to their maximum length (L _max ). In these cases, at least as shown in Figure 21, only its maximum length (L _max ) is usually referred to. As shown in at least Figures 7-11 and Figures 16-20, the maximum length (L _max ) of an absorbent body (66) or an absorbent article (40) is not equal to its minimum length (L _min ).

The first end region (70) and the second end region (72) extend at least outwardly from the central region (74) to the transverse end faces (76 and 78, respectively) of the absorbent body (66) by not less than the maximum length of the absorbent body A distance of about 30% of (L _max ); may be selected to be not less than about 20%, or may be selected to be not less than about 10% of the maximum length (L _max ) of the absorbent body. The first end region (70) and the second end region (72) extend at least outwardly from the central region (74) to the transverse end faces (76 and 78, respectively) of the absorbent body (66) by a distance not greater than the maximum length of the absorbent body A distance of about 20% of (L _max ); optionally no greater than about 30%; or alternatively no greater than about 40% of the maximum length (L _max ) of the absorbent body. As such, the end regions (70, 72) may occupy a minimum of about 20% of the maximum length ( _Lmax ) of the absorbent body (66) to a maximum of about 80% of the maximum length ( _Lmax ) of the absorbent body (66). The approximate size of the absorbent body may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42).

It is generally desirable for the absorbent article (40) to have sufficient capacity to absorb and retain a desired amount or type of bodily exudates. Absorbent capacity is provided by a fluid retaining core or absorbent body, generally designated 66 . At least for menses, it is desirable that the absorbent body (66) have a minimum capacity of not less than about 19 g/g; optionally not less than about 18 g/g; optionally not less than about 17 g/g; optionally not less than about 16 g/g g; alternatively not less than about 15 g/g; alternatively not less than about 14 g/g; alternatively not less than about 13 g/g; alternatively not less than about 12 g/g; alternatively not less than about 11 g/g g; alternatively not less than about 10 g/g; alternatively not less than about 9 g/g; alternatively not less than about 8 g/g; alternatively not less than about 7 g/g; alternatively not less than about 6 g/g g; alternatively not less than about 5 g/g; alternatively not less than about 4 g/g; alternatively not less than about 3 g/g; alternatively not less than about 2 g/g; alternatively not less than about 1 g /g. The absorbent body (66) may also have a maximum capacity of not greater than about 5 g/g, optionally not greater than about 6 g/g; optionally not greater than about 7 g/g; optionally not greater than about 8 g/g; optionally Optionally not greater than about 9 g/g; optionally not greater than about 10 g/g; optionally not greater than about 11 g/g; optionally not greater than about 12 g/g; optionally not greater than about 13 g/g; optionally Optionally not greater than about 14 g/g; optionally not greater than about 15 g/g; optionally not greater than about 16 g/g; optionally not greater than about 17 g/g; optionally not greater than about 18 g/g; optionally is not greater than about 19 g/g; alternatively is not greater than about 20 g/g; alternatively is not greater than about 25 g/g; alternatively is not greater than about 30 g/g. Thus, while the approximate capacity of the absorbent body may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42), the absorbent body (66) may have a capacity of not less than about 1 g/g. Up to an absorbent capacity range of not more than about 30 g/g. Those skilled in the art will readily recognize that the addition or coating of superabsorbent polymers to absorbent bodies typically has the effect of significantly increasing the absorbent capacity.

Describing the individual components in more detail, the absorbent body (66) has an upper surface or body-facing surface and a lower surface (opposite to the upper surface or body-facing surface), and may include any absorbable and/or absorbent Retain material of expected bodily discharge thereafter. Suitable materials are generally hydrophilic, compressible and comfortable. The absorbent body (66) may be constructed of any material known to those skilled in the art. Examples of such materials include, but are not limited to, various natural or synthetic fibers, multiple layers of creped cellulose wadding, loft cellulose fibers, rayon or other regenerated cellulosic materials, wood pulp fibers or comminuted wood pulp fibers, Bulky materials, textile materials, polyester and polypropylene fiber blends, absorbent foams, absorbent sponges, superabsorbent polymers, coated superabsorbent polymers, tows or nits, or any equivalent material or combinations of these combination. Materials suitable for use are also hydrophobic materials which have been rendered hydrophilic according to any known method. However, the total absorbent capacity of the absorbent body (66) should be compatible with the design displacement and intended use of the absorbent article (40). Additionally, the size and absorbent capacity of the absorbent body (66) can vary. Accordingly, the size, shape and configuration of the absorbent body (66) may vary (for example, the absorbent body may have a varying thickness as at least shown in Figures 12 and 13, or may have a hydrophilic gradient or may contain superabsorbent polymers or their analogues).

The absorbent body (66) typically has a thickness, caliper, or height (H), at least as shown in Figure 5, the thickness being measured along a line generally parallel to the Z-axis. The minimum thickness of the absorbent body (66) is typically not less than about 9 mm; optionally not less than about 8 mm; optionally not less than about 7 mm; optionally not less than about 6 mm; optionally not less than about 5 mm; optionally is not less than about 4 mm; alternatively is not less than about 3 mm; alternatively is not less than about 2 mm; alternatively is not less than about 1 mm; or alternatively is not less than about 0.5 mm. The maximum thickness of the absorbent body (66) is typically no greater than about 2 mm; optionally no greater than about 3 mm; optionally no greater than about 4 mm; optionally no greater than about 5 mm; optionally no greater than about 6 mm; optionally is no greater than about 7 mm; alternatively is no greater than about 8 mm; alternatively is no greater than about 9 mm; or alternatively is no greater than about 10 mm. Thus, while the approximate thickness of the absorbent body may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42), the thickness of the absorbent body (66) is about 10 mm or less.

The absorbent body (66) also needs to have a relatively low density, which means it is expected to feel comfortable. Typically, the density of the absorbent body is less than about 0.5 g/cc. In other words, the absorbent body (66) typically has a maximum density of not greater than about 0.5 g/cc; optionally not greater than about 0.4 g/cc; optionally not greater than about 0.3 g/cc; optionally not greater than about 0.3 g/cc; Greater than about 0.2 g/cc; optionally not greater than about 0.1 g/cc; alternatively not greater than about 0.09 g/cc; alternatively not greater than about 0.08 g/cc; alternatively not greater than about 0.07 g/cc can be selected to be not greater than about 0.06 g/cc; can be selected to be not greater than about 0.05 g/cc; can be selected to be not greater than about 0.04 g/cc; can be selected to be not greater than about 0.03 g/cc; Greater than about 0.02 g/cc. The absorbent body (66) also typically has a minimum density of typically not less than about 0.01 g/cc; optionally not less than about 0.02 g/cc; optionally not less than about 0.03 g/cc; optionally not less than about 0.04 g/cc; alternatively not less than about 0.05 g/cc; alternatively not less than about 0.06 g/cc; alternatively not less than about 0.07 g/cc; alternatively not less than about 0.08 g/cc; Selected to be not less than about 0.09 g/cc; alternatively selected to be not less than about 0.1 g/cc; alternatively selected to be not less than about 0.2 g/cc; alternatively selected to be not less than about 0.3 g/cc; 0.4g/cc. Thus, while the approximate density of the absorbent body may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42), the density of the absorbent body (66) may range up to about 0.5 g/cc.

The absorbent body (66) also needs to have a basis weight of less than about 600 grams per square meter. In other words, the absorbent body (66) typically has a maximum basis weight of not greater than about 600 grams/square meter; optionally not greater than about 500 grams/square meter; optionally not greater than about 400 grams/square meter; Can be selected to be no greater than about 300 grams per square meter; can be selected to be no greater than about 200 grams per square meter; or can be selected to be no greater than about 100 grams per square meter. Typically, the absorbent body (66) also has a minimum basis weight typically not less than about 0.1 grams per square meter; optionally not less than about 50 grams per square meter; optionally not less than about 100 grams per square meter; Selected to be not less than about 150 grams/square meter; Optionally not less than about 200 grams/square meter; Optionally not less than about 250 grams/square meter; Optionally not less than about 300 grams/square meter; Not less than about 350 g/m2; alternatively not less than about 400 g/m2; alternatively not less than about 450 g/m2; alternatively not less than about 500 g/m2; Less than about 550 g/m2. Thus, the basis weight of the absorbent body (66) is about 600 grams, although the approximate basis weight of the absorbent body may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42). / square meter or less. A specific example of a suitable absorbent is similar to the coform material composed of a mixture of polypropylene and cellulose fibers, used in KOTEX maxi pantiliners and available from Kimberly Corporation of Neenah, Wisconsin (WI).

An optional barrier layer (64) is typically located on the lower surface of the absorbent body (66) and may be constructed of any desired liquid impermeable material. The barrier layer (64) is expected to allow air and moisture to pass through the absorbent body (66), while blocking the passage of bodily fluids. An example of a suitable barrier material is a microembossed, polymeric film, such as polyethylene, polypropylene or polyester, having a minimum thickness of not less than about 0.025 mm and a maximum thickness of not greater than about 0.13 mm. Bicomponent films can also be used, as well as woven and nonwoven fibers that have been treated to render them impermeable to liquids. Another example of a suitable material is closed cell polyolefin foam. Closed cell polyethylene foam also works satisfactorily.

The barrier layer (64) and the absorbent body (66) may be maintained in fixed connection by bonding all or part of the adjacent surfaces to each other. Various methods known to those skilled in the art can be applied to realize this fixed connection. Examples of such methods include, but are not limited to, ultrasonics, thermal bonding, or the application of various forms of adhesive between two adjacent surfaces. A specific example of a barrier material is similar to polyethylene film used in KOTEX pantiliners and available from Pliant Corporation, Schaumburg, IL, USA.

The optional liquid permeable cover layer (62) has an upper surface and a lower surface, the upper surface typically contacts the wearer's body and receives bodily waste. It is desirable that the cover layer (62) is made of a material that is flexible and that it is not irritating to the vestibule (42) of the female wearer. As used herein, the term "flexible" means conforming to and conforming to the surface of the body or susceptible to deformation in the presence of external forces.

The cover layer (62) is used to provide comfort and conformability, and it functions to direct body waste away from the body and from the body to the absorbent body (66). The cover layer (62) should maintain little or no fluid in its structure, thereby providing a non-irritating surface that can be relatively comfortable and adjacent to the tissues within the vestibule (42) of a female wearer. The construction of the cover layer (62) may be any woven or nonwoven material that is also readily permeable to bodily fluids that contact its surface. Examples of suitable materials include rayon, polyester, polypropylene, polyethylene, nylon or other thermally bondable fibers, polymers of polyolefins such as polypropylene, polyethylene, linear low density polyethylene, aliphatic esters such as polylactic acid Bonded carded webs of the like, finely perforated film webs and mesh materials are also suitable. A specific example of a suitable cover material is similar to bonded carded webs made of polyolefins and polyethylene for cover glue applied to KOTEX pantiliners and available from Sandler, Germany. Other examples of suitable materials include polymeric materials and nonwoven fibrous materials. Synthetic materials are typically in the form of monolithic sheets, which are usually made by extruding the polymer onto a web of spunbond material. The fluid permeable cover layer (62) may also include a plurality of apertures formed therein which increase the rate of penetration of body fluids into the absorbent body (66).

Physiological hydration covers are also suitable for application. As used herein, the term "physiologically hydrated" means that when the absorbent article (40) is placed in the environment of the vestibule, the coverage of the wet interface between the tissue of the vestibule (42) and the absorbent article (40) is properly maintained layer material. The placement of fibers or fibrous structures within the moist tissue environment of the vestibule is expected to be comfortable, and its role is self-evident that the absorbent article contains bodily fluids that exit the vestibule and directs them toward the absorbent body (66). Thus, a covering that is not "hydrated" in the traditional sense (at which time the covering is dry) prior to application maintains (at least does not impede maintaining) the proper moisture level or balance required for (inside) the vestibule.

At least a portion of the surface of the cover layer (62) is treated with a surfactant to make it more hydrophilic. As a result, bodily fluids can more easily pass through the cover layer (62). Surfactants may also reduce the likelihood that bodily fluids, such as menses, will be absorbed by the cover (62) instead of by the absorbent body (66). Suitable means are used to distribute the surfactant substantially uniformly over at least a portion of the upper surface of the cover layer (62), which covers the upper surface of the absorbent body (66).

The cover layer (62) and the absorbent body (66) may be maintained in fixed connection by bonding all or part of the adjacent surfaces to each other. Various methods known to those skilled in the art can be applied to realize this fixed connection. Examples of such methods include, but are not limited to, applying various forms of adhesive between two adjacent surfaces, wrapping at least a portion of the adjacent surface of the absorbent body with an adjacent surface of a portion of the cover layer, At least a portion of the adjacent surface of the absorbent body is fused to an adjacent surface of the portion of the cover layer.

The cover layer (62) is typically located on the upper surface of the absorbent body (66), but may optionally surround and partially or completely surround the absorbent body. Optionally, the cover layer (62) and barrier layer (64) have peripheries extending outwardly beyond the perimeter of the absorbent body (66) and joining the peripheries to form an edge (84), as at least shown in FIG. Known techniques are applied, such as gluing, crimping, heat sealing or the like. The edge (84) may be integrally formed such that the entire perimeter of the absorbent body (66) is bounded by its junction, or the cover layer (62) and barrier layer (64) may be partially perimeter joined. To reduce the potential for irritation and/or discomfort to the wearer of the absorbent article (40), it is desirable that the edge (84) and at least the area of the absorbent article immediately adjacent the edge be soft, compressible and conformable. It is desired that any edge (84) of such a structure has a width of no greater than about 10 mm; alternatively no greater than about 9 mm; alternatively no greater than about 8 mm; alternatively no greater than about 7 mm; alternatively no greater than about 6 mm; can be selected to be no greater than about 5 mm; can be selected to be no greater than about 4 mm; can be selected to be no greater than about 3 mm; can be selected to be no greater than about 2 mm; or can be selected to be no greater than about 1 mm. Additionally, the width of any edge (84) of such a structure is not less than about 0.5mm; optionally not less than about 1mm; alternatively not less than about 2mm; alternatively not less than about 3mm; alternatively not less than about 4mm ; alternatively not less than about 5 mm; alternatively not less than about 6 mm; alternatively not less than about 7 mm; alternatively not less than about 8 mm; alternatively not less than about 9 mm. Thus, although the approximate width of the edge may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42), the edge (84) of such a structure may have a thickness ranging from no less than about 0.5mm to The width range of not more than 10mm. In another version, the cover layer (62) and/or the barrier layer (64) may have a periphery connected to the periphery of the absorbent body (66).

A desired bending axis (F) can be chosen to lie on the longitudinal axis or parallel to the longitudinal axis (L) of certain types of absorbent body (66). Desirably the bending axis (F) is generally longitudinal, i.e. extending along the X direction and its distance from the longitudinal axis (L) is no greater than about 10 mm; optionally no greater than about 9 mm; optionally no greater than about 8 mm; optionally can be selected to be not greater than about 7 mm; alternatively can be selected to be no greater than about 6 mm; alternatively can be selected to be no greater than about 5 mm; alternatively can be selected to be no greater than about 4 mm; alternatively can be selected to be no greater than about 3 mm; No greater than about 1 mm. Desirably, the ideal bending axis (F) is aligned along the longitudinal major axis (L). Desirable bending axis (F) typically has a minimum longitudinal extension of not less than about 90% of the maximum length ( _Lmax ) of the absorbent body (66); optionally not less than about 80%; optionally not less than about 70%; optionally is not less than about 60%; alternatively is not less than about 50%; or alternatively is not less than about 40% of the maximum length ( _Lmax ) of the absorbent body (66). The desired flex axis (F) typically extends longitudinally no greater than about 50% of the maximum length ( _Lmax ) of the absorbent body (66); optionally no greater than about 60%; optionally no greater than about 70%; optionally Not greater than about 80%; optionally not greater than about 90%; or alternatively not less than 100% of the maximum length ( _Lmax ) of the absorbent body (66).

The desired bending axis (F) may naturally result from the size, shape and/or configuration of the absorbent body (66), or the absorbent body may have a soft axis or region to obtain the desired bending axis. The curved shaft (F) may also be formed by any technique known to the person skilled in the art, including for example scoring, pre-folding, notching, embossing or similar techniques. Although the ideal bending axis (F) described here is located in the absorber (66), those skilled in the art can understand that the ideal bending axis (F) can be anywhere in the cover layer (62), barrier layer (64) and/or absorber, cover and barrier, cover and absorber, or barrier and absorber. The desired axis of bend (F), if present, typically allows for easier folding of the absorbent article (40) prior to placement in the vestibule of a female wearer.

The absorbent article (40) also has a thickness, diameter or height (H), as at least shown in Figures 5 and 6, the thickness being measured along a line substantially parallel to the Z-axis. The absorbent article (40) typically has a minimum thickness of not less than about 9 mm; optionally not less than about 8 mm; optionally not less than about 7 mm; optionally not less than about 6 mm; optionally not less than about 5 mm; Optionally not less than about 4 mm; alternatively not less than about 3 mm; alternatively not less than about 2 mm; alternatively not less than about 1 mm; alternatively not less than about 0.5 mm. The maximum thickness of the absorbent article (40) is typically no greater than about 1 mm; optionally no greater than about 2 mm; optionally no greater than about 3 mm; optionally no greater than about 4 mm; optionally no greater than about 5 mm; Selected to be no greater than about 6 mm; alternatively no greater than about 7 mm; alternatively no greater than about 8 mm; alternatively no greater than about 9 mm; or alternatively no greater than about 10 mm. Thus, the thickness of the absorbent article (40) is about 10 mm or less, although the approximate thickness of the absorbent article may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42).

The absorbent article (40) is typically folded along an axis lying on or parallel to the longitudinal axis (L) prior to placement in the vestibule (42) of the female wearer, as at least shown in FIGS. 13, 14 and 15 Show. When folded along this axis, the absorbent article (40) forms a notch (92) which protects the wearer's fingers from soiling when placing the absorbent article within the vestibule (42). Once inserted, the absorbent article (40) may have a tendency to expand to fill the vestibule and thereby maintain the upper surface of the absorbent article in contact with tissue within the vestibule (42). The absorbent article (40) can be resiliently biased along the axis of its folding, thereby increasing the tendency of the absorbent article to unfold. Optionally, the absorbent body (66) of the absorbent article (40) is thicker along its longitudinal edges, at least as shown in Figures 12 and 13, thus also exhibiting a biasing effect. If desired, the upper surface of the absorbent article (40) is typically brought into contact with the tissue of the vestibule (42). However, the absorbent article (40) described herein does not require any additional features to maintain contact with the vestibular (42) tissue of a female wearer. The naturally moist surface of the vestibular (42) tissue typically exhibits a tendency to remain in contact with the upper surface of the absorbent article (40).

As mentioned above, the wearer can fold the absorbent article (40) along one axis before placing the absorbent article in the vestibule (42). Thus, the wearer can grasp the folded absorbent article (40) peripherally, as shown at least in FIG. 15 . The absorbent article (40) is then placed into the vestibule (42) by the wearer applying a force with a finger or fingers positioned within the indentation (92) formed by the folded absorbent article of.

As shown at least in FIGS. 3, 4, 7-11 and 16-21, the absorbent body (66), or absorbent article (40), may be provided with at least one notch (100) extending inwardly along the periphery. As used herein, the term "indentation" refers to a space, groove or recess along the perimeter of a material, layer of material or stack of materials. Since the absorbent body (66), or absorbent article (40), can have a variety of possible geometries, it is impossible to tell where the notch (100) should be in use without seeing the specific absorbent article. Where is it placed on a specially constructed absorbent article (40). However, it can be determined that when the notch (100) is placed in at least that portion of the periphery of the absorbent article (40) closest to the clitoris (60), the notch (100) can be placed on the absorbent article (40). The potential for maintaining the absorbent article in a substantially spaced relationship to the female wearer's clitoris is greatest when in the vestibule (42) of the female wearer. It is believed that this spaced relationship minimizes the possibility of the absorbent article (40) contacting the clitoris, thereby protecting from irritation and potentially painful friction due to the absorbent article contacting the clitoris.

It has also been determined that when the indentation (100) is located at least in the periphery of the portion of the absorbent article (40) closest to the perineum (50), the likelihood of the absorbent article (40) irritating contact with the perineal area is minimized . This is believed to be important for those wearers who use the absorbent article (40) postpartum, where the perineal area is very sensitive or has been stitched due to tears or cuts during childbirth. It is worth noting, however, that even wearers who have never given birth can have a highly sensitive perineal area .

In particular, the absorbent body (66), or absorbent article (40), may include at least one indentation (100) extending inwardly along at least one transverse end surface (76, 78). For example, the indentation (100) may be located substantially on or adjacent to the longitudinal axis (L) of the absorbent body (66). Alternatively, the notch (100) may be located substantially on or adjacent to the ideal bending axis (F). The indentation (100) may provide a natural fold or bend line for the absorbent body (66), thereby allowing the absorbent article (40) to be more easily folded or bent when folded or bent along any such line. More precisely, it can be considered that the absorbent body (66) as shown at least in Figures 11, 16-18 and 20 has at least one notch (100) disposed in the periphery of each of the opposite transverse end faces (76, 78) . When the absorbent article (40) is placed in the vestibule of a female wearer, the indentation (100), when disposed at least in the periphery of the portion of the transverse end surface closest to the clitoris (60), enables the absorbent article ( 40) Minimal potential for stimulation of touch-sensitive clitoris.

In another version, the absorbent body (66), or absorbent article (40), includes at least one indentation (100) extending inwardly along at least one longitudinal side (80, 82). For example, the indentation (100) may be located substantially on or adjacent to the transverse major axis (T) of the absorbent body (66). The indentation (100) may provide a natural fold or bend line for the absorbent body (66), thereby allowing the absorbent article (40) to be more easily folded or bent when folded or bent along any such line. Particularly precisely, it may be considered that the absorbent body (66) at least as shown in Fig. 21 has at least one indentation (100) provided in the periphery of each of the opposing longitudinal sides (80, 82). When the absorbent article (40) is placed in the vestibule of a female wearer, the indentation (100) enables the absorbent article ( 40) Minimal potential for stimulation of touch-sensitive clitoris.

In yet another version, as shown in Figure 26, the absorbent body (66), or absorbent article (40), has a central axis (C) that divides the absorbent article into two substantially identical halves. The absorbent body ( 66 ), or absorbent article ( 40 ), generally exhibits a substantially circular geometry, as shown at least in FIGS. 23 , 25 , 26 and 27 . The absorbent body (66), when configured to have a substantially circular geometry, has a radius (R) extending from a point at the center of the absorbent body to a point at the periphery of the absorbent body. The periphery of this substantially circular form is obtained along its circumference, as desired. The geometry of the absorbent body (66) is an important factor affecting the overall size and effectiveness of the absorbent article (40). Typically, the absorbent body (66) has a maximum radius ( _Rmax ) typically not greater than about 20mm; optionally not greater than about 25mm; optionally not greater than about 30mm; optionally not greater than about 35mm; optionally not greater than about 40mm ; optionally not greater than about 45mm; or finally optionally not greater than about 50mm. The absorbent body (66) has a minimum radius (R _min ) typically not less than about 45 mm; optionally not less than about 40 mm; optionally not less than about 35 mm; optionally not less than about 30 mm; optionally not less than about 25 mm; Choose not less than about 20mm; or finally choose not less than about 15mm. Thus, while the approximate radius of the absorbent body may vary depending on the overall design and intended location of the absorbent article (40) within the female wearer's vestibule (42), the radius of the absorbent body (66) ranges from not less than about 15 mm to not greater than About 50mm.

A desired bending axis (F) can be chosen to lie on or parallel to the central axis (C) of some types of absorbent body (66). Any desired bending axis (F) is generally placed parallel to the central axis (C) or deviated from the center of the central axis (C) by a distance no greater than about 10mm; optionally no greater than about 9mm; optionally no greater than about 8mm; Can be selected to be no greater than about 7 mm; can be selected to be no greater than about 6 mm; can be selected to be no greater than about 5 mm; can be selected to be no greater than about 4 mm; can optionally be no greater than about 3 mm; It is selected to be no greater than about 1 mm. It is desirable that the ideal bending axis (F) is aligned along the central axis (C). Desirable bend axis (F) typically has a minimum extension of not less than about 90% of the diameter length of the absorbent body (66); optionally not less than about 80%; optionally not less than about 70%; optionally not less than about 60% %; may be selected to be not less than about 50%; or may be selected to be not less than about 40% of the diameter length of the absorbent body (66). Desirable bend axis (F) typically extends no greater than about 50% of the diameter length of the absorbent body (66); optionally no greater than about 60%; optionally no greater than about 70%; optionally no greater than about 80% ; may be selected to be not greater than about 90%; or may be selected to be not less than 100% of the diameter length of the absorbent body (66).

As shown at least in FIGS. 22, 23 and 25-31, the absorbent body (66), or absorbent article (40), can include at least one indentation (100) extending inwardly along the periphery of the absorbent body. For example, the indentation (100) may be located substantially on or adjacent to the central axis (C) of the absorbent body (66). Alternatively, the notch (100) may be located substantially on or adjacent to the ideal bending axis (F). The indentation (100) may provide a natural fold or bend line for the absorbent body (66), thereby allowing the absorbent article (40) to be more easily folded or bent when folded or bent along any such line. More precisely, an absorbent body (66) as at least shown in Figure 28 can be considered to have at least two indentations (100) disposed in its periphery, one at or near the opposite end of an axis or line. When the absorbent article (40) is placed in the vestibule of a female wearer, the indentation (100) enables the absorbent article to Stimulation of the touch-sensitive clitoris is minimal.

Ideally, the indentation (100) of the embodiments described herein has a size sufficient to allow the absorbent article (40) to irritate, as desired, when the absorbent article (40) is placed within the vestibule (42) of a female wearer. The likelihood of touching the clitoris (60) and/or the perineum (50) is minimal. In other words, ideally, the indentation (100) is of a size sufficient to allow the absorbent article (40) and the clitoris, as desired, to (60) and/or the perineum (50) are most likely to remain in a substantially spaced relationship.

the indentation (100) extends suitably inwardly from the periphery of the absorbent body (66) to a depth (102), the depth of the indentation (100) being no greater than about 30 mm as measured perpendicular to the periphery of the absorbent body; optionally Optionally not greater than about 25mm; optionally not greater than about 20mm; optionally not greater than about 15mm; optionally not greater than about 10mm; optionally not greater than about 5mm; optionally not greater than about 4mm; or finally optionally not greater than about 3mm. Alternatively, the depth of the notch (100) is not less than about 2mm; optionally not less than about 3mm; optionally not less than about 4mm; optionally not less than about 5mm; optionally not less than about 10mm; optionally not less than about 15mm; Choose not less than about 20mm; or finally choose not less than about 25mm. Thus, while the approximate depth of the notch may vary depending on the overall design and intended location of the absorbent article (40) within the vestibule (42) of a female wearer, the notch (100) is measured perpendicular to the perimeter of the absorbent body. The depth (102) ranges from not less than about 15 mm to not greater than about 50 mm.

The indentation (100) also has a width (104), the widest portion of which is generally disposed at least on the periphery of the absorbent body (66). Ideally, the width (104) of the notch (100) is no greater than about 30 mm, although the approximate width of the notch may vary depending on the overall design and intended location of the absorbent article (40) within the vestibule (42) of a female wearer; Optionally no greater than about 25mm; optionally no greater than about 20mm; optionally no greater than about 15mm; optionally no greater than about 10mm; optionally no greater than about 5mm; optionally no greater than about 4mm; optionally no greater than about 3mm; optionally Optionally no greater than about 2mm; optionally no greater than about 1mm; or finally, optionally no greater than about 0.5mm.

The notch (100) provided as described above can have various geometric shapes including U-shape, V-shape, W-shape, semi-circle or combinations thereof. Several examples of possible notch (100) geometries are shown in the several figures. Those skilled in the art will appreciate, however, that the notch geometries identified herein are non-limiting and are merely examples of the many geometries that may be applicable to the notches (100) described herein.

The notch (100) of the present invention can be arranged on the periphery of the absorbent body (66) having various geometric shapes, or in other words the periphery of the absorbent article (40). Examples of such geometric shapes include, but are not limited to, rectangles, ovals, ellipses, trapezoids, circles, semicircles, triangles, squares, teardrops, diamonds, butterflies, pears, hearts, or combinations thereof a composite shape.

While the invention has been illustrated and described in some detail with reference to certain embodiments thereof, other embodiments are possible. Therefore, the spirit and scope of the appended claims of the present invention should not be limited by the description of the above embodiments.

Claims (24)

1. an absorbent commodity (40), it comprises an absorber (66), this absorbent commodity is set to be used to be placed in women wearer's the vestibule (42), this absorber has an almost circular geometry and a periphery, and this absorber has at least one breach (100) and is arranged in its periphery.

2. absorbent commodity as claimed in claim 1 is characterized in that this breach extends internally from the periphery of this absorber.

3. absorbent commodity as claimed in claim 2, it is characterized in that, the size that this breach has is enough to make this absorbent commodity and women wearer's clitoris (60) keep basic spaced relationship when this absorbent commodity is placed in women wearer's the vestibule.

4. absorbent commodity as claimed in claim 2 is characterized in that, the degree of depth of this breach (102) is not more than about 30mm, and the width of this breach (104) is not more than about 30mm.

5. absorbent commodity as claimed in claim 2, it is characterized in that, the size that this breach has is enough to make this absorbent commodity and women wearer's perineum (50) keep basic spaced relationship when this absorbent commodity is placed in women wearer's the vestibule.

6. absorbent commodity as claimed in claim 1 is characterized in that, but it also comprises the cover layer (62) of a permeate fluid.

7. absorbent commodity as claimed in claim 6 is characterized in that, this absorber of this cover encloses.

8. absorbent commodity as claimed in claim 1 is characterized in that, it also comprises the barrier layer (64) of an impermeable liquid.

9. absorbent commodity as claimed in claim 6 is characterized in that, it also comprises the barrier layer (64) of an impermeable liquid.

10. absorbent commodity as claimed in claim 1 is characterized in that this absorber also comprises super absorbent polymer.

A 11. absorbent commodity (40), it is set to be used to be placed in women wearer's the vestibule (42), this absorbent commodity comprises absorber (66), this absorber has a vertical main shaft, a horizontal main shaft, separated first and second vertical sides (80,82) and separated first transverse end surface and second transverse end surface (76,78), this vertical side basically forms the periphery of absorber with this transverse end surface, and at least one breach (100) is arranged in the periphery of this absorber.

12. absorbent commodity as claimed in claim 11 is characterized in that, this breach extends internally from the periphery of this absorber.

13. absorbent commodity as claimed in claim 12, it is characterized in that, the size that this breach has is enough to make this absorbent commodity and women wearer's clitoris (60) keep basic spaced relationship when this absorbent commodity is placed in women wearer's the vestibule.

14. absorbent commodity as claimed in claim 12 is characterized in that, the degree of depth of this breach (102) is not more than about 30mm, and the width of this breach (104) is not more than about 30mm.

15. absorbent commodity as claimed in claim 12, it is characterized in that, the size that this breach has is enough to make this absorbent commodity and women wearer's perineum (50) keep basic spaced relationship when this absorbent commodity is placed in women wearer's the vestibule.

16. absorbent commodity as claimed in claim 11 is characterized in that, but it also comprises the cover layer (62) of a permeate fluid.

17. absorbent commodity as claimed in claim 16 is characterized in that, this absorber of this cover encloses.

18. absorbent commodity as claimed in claim 11 is characterized in that, it also comprises the barrier layer (64) of an impermeable liquid.

19. absorbent commodity as claimed in claim 16 is characterized in that, it also comprises the barrier layer (64) of an impermeable liquid.

20. absorbent commodity as claimed in claim 12 is characterized in that, this breach is arranged at least one vertical side.

21. absorbent commodity as claimed in claim 20 is characterized in that, also comprises at least one breach that is arranged at least one transverse end surface.

22. absorbent commodity as claimed in claim 12 is characterized in that, this breach is arranged at least one transverse end surface.

23. absorbent commodity as claimed in claim 22 is characterized in that, also comprises at least one breach that is arranged at least one vertical side.

24. absorbent commodity as claimed in claim 11 is characterized in that, this absorber also comprises super absorbent polymer.

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