RU2777320C1 - Absorbent article - Google Patents

Abstract

FIELD: hygiene.

SUBSTANCE: invention relates to an absorbent article having a longitudinal direction, a transverse direction, and a depth direction; a longitudinal central line and a transverse central line; a first end edge extending in the transverse direction and a second end edge extending in the transverse direction; a pair of opposing side edges extending in the longitudinal direction, a frontal section, a back section, and a central section; an upper cover layer containing a hydrophilic central layer, a semi-hydrophilic first side layer, a semi-hydrophilic second side layer, a first overlap section, a second overlap section, a first body-facing surface of the first overlap section, with a first area, wherein 10% to 35% of the first area contains a first embossing; a second body-facing surface of the second overlap section, with a second area, wherein 10% to 35% of the second area contains a second embossing; a lower cover layer and an absorbent core.

EFFECT: invention improves the sensation of comfort on skin for the wearer and eases the sensations of moisture and re-hydration.

13 cl, 20 dwg

Description

Products such as absorbent articles are often used to collect and contain human excreta containing, for example, urine, menses and/or blood. Comfort, absorbency and freedom of movement are the three main distinguishing features of the product and a matter of great concern to the wearer of the product. In particular, the wearer is often interested in whether such products will absorb significant amounts of body waste with minimal leakage to keep their undergarments, outerwear or sheets from staining, and whether such products will help him avoid the accompanying feeling of awkwardness caused by the appearance of spots.

Today, a wide variety of waste absorbing products are available in the form of panty liners, sanitary napkins, sanitary napkins, panty liners and incontinence products. Such products generally comprise an absorbent core located between a body-facing, liquid-permeable topsheet and a garment-facing, liquid-impermeable backsheet. The edges of the top cover and bottom cover are often bonded to each other circumferentially to form a seal to accommodate the absorbent core and body exudates introduced into the product through the top cover. In use, such products are typically positioned at the crotch of the undergarment to absorb body waste, and a garment attachment adhesive on the backsheet can be used to attach the products to the inside of the undergarment's crotch. Some of these products may also include wing structures enclosing the wearer's undergarment to further secure the product to the undergarment and keep the undergarment from staining. Such wing structures (also known as winglets or winglets) are often formed from laterally projecting portions of the top cover and/or bottom cover layers.

Wearers of such absorbent products have an interest in these products exhibiting reduced wet sensations when soiled or interacted during use. Unfortunately, when such products are contaminated, the topsheet often remains wet, or at least feels wet for a while during the period of use. The topsheet can often be absorbent, made from hydrophilic construction materials such as natural fibers or surfactant-treated polymeric materials. Once soiled, these materials often retain some appreciable amount of moisture on the surface, thus creating an uncomfortable wet feeling during further use of the product. While such products are ideally replaced by the user as soon as contamination actually occurs, in some cases the user may not initially be aware that contamination has occurred. With this understanding, the user may not be in a location where product change is possible or convenient. Frequent change of these products may also be impractical in the presence of the daily activities of the wearer, even if moisture is detected immediately after contamination.

As a result of the desire of wearers to experience a reduced sensation of moisture in products during long-term use (for both skin health and physical comfort reasons), manufacturers have explored numerous technological approaches to eliminate these sensations after product contamination. Manufacturers have attempted to reduce both the initial wetness sensations and the ongoing “rewetting” sensations where the product absorbs a fluid or liquid, such as menses or urine, through the topsheet and delivers it to the core of the absorbent article and then releases the fluid or liquid from the inner layer back to the top cover layer under continued wear pressure. This release of the fluid/liquid back into the topsheet often leads to the wearer's perception of continued moisture. Manufacturers of these products have specifically designed separate top coats to reduce moisture (and rewet) based on chemical enhancements to the top coat. Accordingly, hydrophobic topsheets of polymeric fibrous nonwoven layers or apertured film layers have been developed in order for products to exhibit a prolonged dry feeling on the skin-contact surface of the product. In addition, the liquid/fluid retained in the inner layers of the product may be less prone to passing back through the top cover to the wearer's skin due to the hydrophobic properties of the inner surface of the top cover. In some cases, the top cover layer acts as a check valve, allowing moisture to flow in one direction and keeping it below the user's skin-contact surface. However, such hydrophobic film-based materials used for the topcoat often provide an uncomfortable, "plasticy" feel to the product.

As a result, there remains a need for improved products, such as an absorbent article that has an improved feeling of comfort on the wearer's skin and reduces wetness and rewetting sensations.

BRIEF DESCRIPTION OF THE INVENTION

In various embodiments, the implementation of the absorbent article is characterized in that it can have a longitudinal direction, a transverse direction and a depth direction; a longitudinal center line and a transverse center line; a first transversely extending end edge and a second transversely extending end edge; a pair of opposite longitudinally extending side edges extending between and connecting the first transverse end edge and the second transverse end edge; an anterior region, a posterior region, and a central region between the anterior region and the posterior region; a top cover layer that may comprise a hydrophilic core layer extending in the longitudinal direction of the absorbent article and symmetrically enclosing the longitudinal center line on both sides, the core layer having a first longitudinally extending side edge and a second longitudinally extending side edge; a semi-hydrophilic first side layer having a first inner edge and in an overlapping configuration with the center layer such that the first inner edge of the first side layer is laterally closer to the longitudinal center line than the first longitudinally extending side edge of the center layer; and a semi-hydrophilic second side layer having a second inner edge and in an overlapping configuration with the center layer such that the second inner edge of the second side layer is laterally closer to the longitudinal center line than the second longitudinally extending side edge of the center layer; a first overlap region defined by a first longitudinally extending side edge of the core layer, a first inner edge of the first side layer, a first portion of the first transverse end edge of the absorbent article, and a first portion of the second transverse end edge of the absorbent article; a second overlap region defined by a second longitudinally extending side edge of the core layer, a second inner edge of the second side layer, a second portion of the first transverse end edge of the absorbent article, and a second portion of the second transverse end edge of the absorbent article; a first body facing surface of a first overlap region having a first area, with 10% to 35% of the first area containing the first embossing; a second body facing surface of a second overlap region having a second area, with 10% to 35% of the second area comprising a second embossing; lower cover layer; and an absorbent core located between the upper cover layer and the lower cover layer and containing a first recess located in the depth direction below the first embossing, and a second recess located in the depth direction below the second embossing.

In various embodiments, the hydrophilic core has a water contact angle less than or equal to 59°. In various embodiments, the semi-hydrophilic first side layer and the semi-hydrophilic second side layer each have a water contact angle between 60° and 89°.

In various embodiments, the top cover layer comprises an open area having a width in the transverse direction between the first inner edge of the first side layer and the second inner edge of the second side layer from 10 mm to 40 mm. In various embodiments, the first overlap region has a transverse width between the first longitudinally extending side edge of the center layer and the first inner edge of the first side layer of more than 10 mm. In various embodiments, the second overlap region has a transverse width between the second longitudinally extending side edge of the center layer and the second inner edge of the second side layer of more than 10 mm.

In various embodiments, the first embossing extends in the longitudinal direction of the absorbent article and includes a portion located in each of the front region, back region, and central region of the first overlap region, and the second embossment extends in the longitudinal direction of the absorbent article and comprises a portion located in each of the front region, back region and center region of the second overlap region. In various embodiments, the absorbent article may further comprise a first plurality of discrete embossings located in the central region of the first overlap region and a second plurality of distinct embossings located in the central region of the second overlap region. In various embodiments, the absorbent article may further comprise a first plurality of distinct embossings evenly distributed over the front region, back region, and center region of the first overlap region, and a second plurality of distinct embossments uniformly distributed across the front region, back region, and center region of the second overlap region.

In various embodiments, the first embossing crosses the first inner edge of the first side layer and connects with the first secondary embossing located in the front area of the open area, the first embossing crosses the first inside edge of the first side layer and connects with the second secondary embossing located in the back area of the open area, and the second embossing intersects the second inner edge of the second side layer and joins with the first secondary embossing in the front area of the open area, and the second embossing intersects the second inner edge of the second side layer and joins with the second secondary embossing in the back area.

In various embodiments, the implementation of the absorbent product may contain secondary embossing in the open area. In various embodiments, the implementation of the absorbent article may further comprise an acquisition layer. In various embodiments, the absorbent article may further comprise a fluid-absorbing layer. In various embodiments, the absorbent article may further comprise a distribution layer.

BRIEF DESCRIPTION OF GRAPHICS

In FIG. 1 is a hierarchically organized representation of one embodiment of an absorbent article.

In FIG. 2 is a perspective view of the absorbent article shown in FIG. one.

In FIG. 3 is a cross-sectional view of the absorbent article shown in FIG. 1, along line 3-3.

In FIG. 4 is a hierarchically organized representation of one embodiment of an absorbent article.

In FIG. 5 is a perspective view of the absorbent article shown in FIG. four.

In FIG. 6 is a cross-sectional view of the absorbent article shown in FIG. 4, along lines 6-6.

In FIG. 7 is a hierarchically organized view according to one embodiment of an absorbent article.

In FIG. 8 is a hierarchically organized representation of one embodiment of an absorbent article.

In FIG. 9 is an exploded perspective view of an embodiment of an absorbent article.

In FIG. 10 is a cross-sectional view of the absorbent article shown in FIG. 9.

In FIG. 11 is an exploded perspective view of an embodiment of an absorbent article.

In FIG. 12 is a cross-sectional view of the absorbent article shown in FIG. eleven.

In FIG. 13 is an exploded perspective view of an embodiment of an absorbent article.

In FIG. 14 is a cross-sectional view of the absorbent article shown in FIG. 13.

In FIG. 15 is an exploded perspective view of an embodiment of an absorbent article.

In FIG. 16 is a cross-sectional view of the absorbent article shown in FIG. fifteen.

In FIG. 17 is an exploded perspective view of an embodiment of an absorbent article.

In FIG. 18 is a cross-sectional view of the absorbent article shown in FIG. 17.

In FIG. 19 is an exploded perspective view of an embodiment of an absorbent article.

In FIG. 20 is a cross-sectional view of the absorbent article shown in FIG. 19.

The reuse of reference numbers in the present description and drawings is intended to represent the same or similar features or elements of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The present invention is generally directed to an absorbent article that can provide an improved feeling of comfort to the wearer's skin and reduce wetness and rewetting sensations. The absorbent article may have a longitudinal direction, a transverse direction, and a depth direction. The absorbent article may comprise a top cover layer, a bottom cover layer, and an absorbent core positioned between the top cover layer and the bottom cover layer. The top cover layer may comprise a hydrophilic core layer, a semi-hydrophilic first side layer, and a semi-hydrophilic second side layer. Each of the semi-hydrophilic side layers may be bonded to the center layer using an embossing technique in the areas of overlap of each of the semi-hydrophilic side layers with the center layer. The area facing the body with respect to the surface of each of the areas of overlap may contain from about 10% to about 35% of at least one embossing.

Definitions

As used herein, the term "absorbent article" as used herein refers to an article of clothing or other targeted personal care absorbent article, including, but not limited to, menstrual products such as sanitary napkins, feminine hygiene pads, panty liners, and panty liners. , incontinence devices, etc.

As used herein, the term "air laid" as used herein refers to a web made by air laying. In the air laying process, bundles of small fibers, typically in the range of about 3 mm to about 52 mm, are separated and entrained in the air supply and then deposited on the forming grid, usually by vacuum. The randomly deposited fibers are then bonded together using, for example, hot air to activate the binder or latex adhesive. Air laying is described, for example, in US Pat. No. 4,640,810 to Laursen et al., which is incorporated herein by reference in its entirety for all purposes.

In the context of this document, the term "coupled" in this document refers to the articulation, bonding, connection, fastening, and the like. two elements. Two elements will be considered to be linked together if they are articulated, glued, connected, fastened, or the like. directly with each other or indirectly with each other, for example, when associated with an intermediate element. Bonding can take place, for example, by gluing, bonding under pressure, heat sealing, ultrasonic welding, stitching, stitching and/or welding.

In the context of this document, the term "bonded carded web" as used herein refers to webs made from staple fibers that are passed through a combing or carding unit that separates or separates and aligns the staple fibers in the machine direction to form a generally oriented machine direction fibrous nonwoven fabric. This material can be bonded by methods that may include spot welding, hot air bonding, ultrasonic bonding, adhesive bonding, and the like.

In the context of this document, the term "coform" in this document refers to composite materials containing a mixture or stabilized matrix of thermoplastic fibers and a second material that is not thermoplastic. For example, coform materials can be made by a process in which at least one meltblown die is positioned near a chute through which other materials are added to the web during formation. Such other materials may include, but are not limited to, fibrous organic materials such as wood or non-wood pulp, such as cotton paper, cellulose chemical fiber paper, recycled paper, cellulose fluff, and particles of superabsorbent material; inorganic and/or organic absorbent materials, processed polymeric staple fibers and the like. Some examples of such coform materials are disclosed in US Pat. purposes is incorporated into this document in its entirety by reference.

In the context of this document, the term "conjugated fibers" in this document refers to fibers formed from at least two polymer sources extruded from separate extruders and spun together to form a single fiber. Conjugate fibers are sometimes also referred to as bicomponent fibers or multicomponent fibers. The polymers are located in essentially invariably located different zones in the cross sections of the conjugated fibers and continuously run along the length of the conjugated fibers. The configuration of such a conjugate fiber may be, for example, a sheath/core arrangement with one polymer surrounded by another, or may be a side-by-side arrangement, a sector arrangement, or an island-in-the-sea arrangement. Conjugate fibers are described in U.S. Patent No. 5,108,820 to Kaneko et al., No. 4,795,668 to Krueger et al., No. 5,540,992 to Marcher et al., No. 5,336,552 to Strack et al. 5,382,400 to Pike et al., each of which is hereby incorporated by reference in its entirety for all purposes. In the case of bicomponent fibers, the polymers may be present in ratios of 75/25, 50/50, 25/75, or any other desired ratio. In addition, polymeric additives, such as processing aids, may be included in each zone.

In the context of this document, the term "hydrophilic" refers to surfaces with a water contact angle less than or equal to 59°.

As used herein, the term "hydrophobic" refers to surfaces with fluid repellency and a water contact angle greater than or equal to 90°.

In the context of this document, the term "semi-hydrophilic" refers to surfaces with a water contact angle between 60° and 89°.

In the context of this document, the term "machine direction" (MD) refers to the length of the fabric in the direction in which it is produced, in contrast to the "direction perpendicular to the machine direction" (CD), which refers to the width of the fabric in the direction usually perpendicular to the direction processing.

In the context of this document, the term "meltblown web" in this document refers to a nonwoven web obtained by a process in which, through a plurality of small, usually round, holes in a forming head, molten thermoplastic material in the form of molten fibers is extruded into converging high-velocity gas streams (for example, air) that help to reduce the diameter of the fibers of the molten thermoplastic material, which can reach the diameter of microfibers. The meltblown fibers are then carried by the high velocity gas stream and deposited on the receiving surface to form a web of randomly distributed meltblown fibers. Such a process is disclosed, for example, in US Pat. No. 3,849,241 to Butin et al., which is incorporated herein by reference in its entirety for all purposes. In general, meltblown fibers can be microfibers that are substantially continuous or discontinuous, typically less than 10 microns in diameter, and typically tacky when applied to a receiving surface.

As used herein, the term "nonwoven fabric" or "nonwoven fabric" refers herein to a fabric having a structure of individual fibers or filaments that are interleaved, but not in a discernible manner, as in the case of a knitted fabric. Nonwoven fabrics or webs are produced using a variety of processes, such as, for example, meltblown processes, melt spunbonding processes, hot air bonding processes for carded webs (also known as BCW and TABCW), etc. The basis weight of nonwoven webs can typically vary, for example, from about 5, 10 or 20 g/m ² to about 120, 125 or 150 g/m ² .

In the context of this document, the term "spunbond fabric" in this document refers to a fabric containing mainly continuous fibers of small diameter. The fibers are formed by extruding a molten thermoplastic material from a plurality of small, usually round, die holes, the diameter of the extruded fibers then being rapidly reduced in diameter, for example, by withdrawal stretching and/or other well-known methods used in melt spunbonding technology. The manufacture of spunbond fabrics is described and illustrated, for example, in U.S. Patent No. 4,340,563 issued to Appel et al. , No. 3502763 to Hartman, No. 3502538 to Levy, No. 3542615 to Dobo et al., and No. 5382400 to Pike et al., each of which, for all purposes, is incorporated herein in its entirety by reference. Spunbond fibers are generally non-tacky when deposited on a receiving surface. The spunbond fibers can sometimes have diameters less than about 40 microns, and often from about 5 to about 20 microns.

In the context of this document, the terms "superabsorbent polymer", "superabsorbent material" or "SAP" will be used interchangeably and will refer to polymers that can absorb and retain extremely large amounts of liquid compared to their own weight. Moisture-absorbing polymers, which are classified as hydrogels that can be cross-linked, absorb aqueous solutions due to hydrogen bonding and other polar interaction forces with water molecules. The ability of SAP to absorb water is based in part on the degree of ionicity (a measure of the concentration of ions in an aqueous solution) and the polar functional groups of SAP, which have an affinity for water. SAP is usually prepared by polymerizing acrylic acid mixed with sodium hydroxide in the presence of an initiator to form the sodium salt of polyacrylic acid (sometimes referred to as sodium polyacrylate). Other materials such as polyacrylamide copolymer, ethylene-maleic anhydride copolymer, cross-linked carboxymethyl cellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide, and starch-grafted polyacrylonitrile copolymer are also used to make the superabsorbent polymer. In absorbent articles, SAP may be present as particles or fibers, or as a coating on another material or fiber.

Absorbent article

The present invention is generally directed to an absorbent article that can provide an improved feeling of comfort to the wearer's skin and reduce wetness and rewetting sensations. The absorbent article may have a longitudinal direction, a transverse direction, and a depth direction. The absorbent article may comprise a top cover layer, a bottom cover layer, and an absorbent core positioned between the top cover layer and the bottom cover layer. The top cover layer may comprise a hydrophilic core layer, a semi-hydrophilic first side layer, and a semi-hydrophilic second side layer. Each of the semi-hydrophilic side layers may be bonded to the center layer using an embossing technique in the areas of overlap of each of the semi-hydrophilic side layers with the center layer. The body facing surface area of each of the overlap regions may comprise from about 10% to about 35% of at least one embossing.

Referring to FIG. 1-3, in Fig. 1 is a top-down illustration of an exemplary absorbent article 10, FIG. 2 is an exploded perspective view of the absorbent article 10 shown in FIG. 1 and in FIG. 3 is an illustration of a cross-sectional view of the absorbent article 10 shown in FIG. 1, along line 3-3. The absorbent article 10 may have a longitudinal direction (L), a transverse direction (T), and a depth direction (Z). The absorbent article 10 may include a first transverse end edge 12, a second transverse end edge 14 opposite the first transverse end edge 12, and a pair of opposite longitudinally extending side edges 16 extending between the first transverse end edge 12. direction end edge 12 and the second passing in the transverse end edge 14 and connecting them. In various embodiments, the absorbent article 10 may take on a variety of geometries, but will typically have a pair of opposing longitudinally extending side edges 16 and a pair of opposing transversely extending end edges 12 and 14. The absorbent article 10 may have a wearer facing, a liquid-permeable top cover 20 and a garment-facing, liquid-impervious bottom cover 22. The absorbent core 30 may be positioned between the top cover 20 and the back cover 22. The absorbent article 10 may have a longitudinal centerline 32 and transverse center line 34.

Both the top cover layer 20 and the bottom cover layer 22 may extend beyond the outermost peripheral edges of the absorbent core 30 and may be peripherally bonded to each other either wholly or partially using known bonding techniques to form a compacted peripheral region 24. For example , the top cover layer 20 and the bottom cover layer 22 may be bonded to each other by adhesive bonding, ultrasonic bonding, or any other suitable bonding technique known in the art.

In various embodiments, the absorbent article 10 may have a pair of wings 26 extending outward in a transverse direction T from the absorbent article 10. The wings 26 may be placed over the edges of the wearer's undergarment so that the wings 26 are positioned between the edges of the wearer's undergarment and the wearer's thighs. . Wings 26 can serve at least two purposes. First, the wings 26 can prevent contamination of the wearer's undergarment by forming a barrier along the edges of the undergarment. Secondly, the wings 26 may be provided with an attachment aid (not shown), such as, for example, a garment attachment adhesive or a hook, to hold the absorbent article 10 securely and properly on the undergarment. Wings 26 may wrap around the crotch of the wearer's undergarment to assist in attaching the absorbent article 10 to the wearer's undergarment in use. Each flap 26 can fold under the crotch of the wearer's undergarment and the attachment aid can form a secure attachment either to the opposite flap 26 or directly to the surface of the wearer's undergarment. In various embodiments, the wings 26 may be a raised portion of the materials forming the top cover layer 20 and/or the bottom cover layer 22 such that the wings 26 can be integrally constructed with the absorbent article 10. In various embodiments, the wings 26 can be made of materials like top cover 20, bottom cover 22, or combinations of these materials. In various embodiments, wings 26 may be separate elements associated with the body of absorbent article 10. It should be understood that wings 26 are optional, and in various embodiments, absorbent article 10 may be provided without wings 26.

Each of these components of the absorbent article 10, as well as additional components, will be described in more detail herein.

Top cover layer

The top cover layer 20 defines a wearer-facing surface of the absorbent article 10 that can directly contact the wearer's body and is liquid-permeable to receive bodily waste products. The top cover layer 20 is desirably provided for comfort and fit, and is designed to direct bodily excretions away from the wearer's body towards the absorbent core 30 by its structure. surface next to the skin of the wearer of the absorbent article 10. The top cover layer 20 comprises a core layer 40 arranged in an overlapping configuration with first and second opposing side layers 50 and 60.

Referring to FIG. 1-3, the core layer 40 may extend in the longitudinal direction (L) of the absorbent article 10 and may be located along the longitudinal center line 32 of the absorbent article 10, symmetrically enclosing it on both sides. The center layer 40 may have a first longitudinally extending side edge 44, a second longitudinally extending side edge 46, and a width W1 in the transverse direction (T) extending between the first longitudinally extending side edge 44 and the second longitudinally extending side edge. 46. In various embodiments, the width W1 between the first longitudinally extending side edge 44 of the center layer 40 and the second longitudinally extending side edge 46 of the central layer 40 may be greater than about 50 mm. In various embodiments, the width W1 between the first longitudinally extending side edge 44 of the center layer 40 and the second longitudinally extending side edge 46 of the central layer 40 may be from about 50 mm or 60 mm to about 70 mm or 80 mm.

The first sidesheet 50 may be positioned in an overlapping configuration with the centersheet 40 such that the inner edge 52 of the first sidesheet 50 may be positioned between the first longitudinally extending side edge 44 of the centersheet 40 and the longitudinal centerline 32 of the absorbent article 10. Thus , the inner edge 52 of the first side layer 50 is positioned transversely closer to the longitudinal centerline 32 of the absorbent article 10 than the first longitudinally extending side edge 44 of the center layer 40. The second side layer 60 may be positioned in an overlapping configuration with the center layer 40 such that that the inner edge 62 of the second sidesheet 60 may be positioned between the second longitudinally extending side edge 46 of the core layer 40 and the longitudinal centerline 32 of the absorbent article 10. Thus, the inner edge 62 of the second sidesheet 60 is positioned transversely closer to the longitudinal central th line 32 of the absorbent article 10 than the second longitudinally extending side edge 46 of the core layer 40. Thus, the top cover layer 20 may comprise a core layer 40 overlapped by each of the first side layer 50 and the second side layer 60.

The overlap configuration of the first side layer 50 with the center layer 40 may result in the first region of overlap 70. The first region of overlap 70 exists where the material forming the center layer 40 overlaps with the material forming the first side layer 50. In various embodiments, when the first side layer layer 50 and core layer 40 have a length extending in the longitudinal direction (L) from the first transverse end edge 12 to the second transverse end edge 14, the first overlap region 70 may be defined by the first longitudinally extending side edge 44 the center layer 40, the inner edge 52 of the first side layer 50, a portion of the first transverse end edge 12 of the absorbent article 10, and a portion of the second transverse end edge 14 of the absorbent article 10. The first overlap region 70 may have a width W2 in the transverse direction ( T), about extending between the first longitudinally extending side edge 44 of the center layer 40 and the inner edge 52 of the first side layer 50. In various embodiments, the width W2 of the first overlap region 70 may be uniform in the longitudinal direction (L) of the absorbent article 10. In various embodiments, the width The W2 of the first region of overlap 70 may be variable in the longitudinal direction (L) of the absorbent article 10. In various embodiments, the width W2 of the first region of overlap 70 is greater than about 10 mm. In various embodiments, the width W2 of the first overlap region 70 is from about 10 mm, 12 mm, or 14 mm to about 16 mm, 18 mm, or 20 mm.

The overlap configuration of the second side layer 60 with the center layer 40 may result in a second region of overlap 80. The second region of overlap 80 exists where the material forming the center layer 40 overlaps with the material forming the second side layer 60. In various embodiments, when the second side layer layer 60 and core layer 40 have a length extending in the longitudinal direction (L) from the first transverse end edge 12 to the second transverse end edge 14, the second overlap region 80 may be defined by the second longitudinally extending side edge 46 the center layer 40, the inner edge 62 of the second side layer 60, part of the first transverse end edge 12 of the absorbent article 10 and part of the second transverse end edge 14 of the absorbent article 10. The second overlap region 80 may have a width W3 in the transverse direction ( T), pr extending between the second longitudinally extending side edge 46 of the center layer 40 and the inner edge 62 of the second side layer 60. In various embodiments, the width W3 of the second overlap region 80 may be uniform in the longitudinal direction (L) of the absorbent article 10. In various embodiments, the width The W3 of the second region of overlap 80 may be variable in the longitudinal direction (L) of the absorbent article 10. In various embodiments, the width W3 of the second region of overlap 80 is greater than about 10 mm. In various embodiments, the width W3 of the second overlap region 80 is from about 10 mm, 12 mm, or 14 mm to about 16 mm, 18 mm, or 20 mm.

Since the top cover layer 20 may comprise a first overlap region 70 and a second overlap region 80, the top cover layer 20 may also include an area, an open area 90, in which the core layer 40 does not overlap with either the first side layer 50 or the second side layer. 60. More specifically, the open area 90 of the center layer 40 may include a body facing surface 42 that may be open toward the body of the wearer of the absorbent article 10 and may come into direct contact with the body of the wearer of the absorbent article 10. In various embodiments, each of the center layer 40, the first side layer 50, and the second side layer 60 have a longitudinal direction length (L) of the absorbent article 10 extending from the first transverse end edge 12 to the second transverse end edge 14, with the open area 90 the central layer 40 may be limited by the inner edge 52 of the first sidesheet 50, an inner edge 62 of the second sidesheet 60, a portion of the first transverse end edge 12 of the absorbent article 10, and a portion of the second transverse end edge 14 of the absorbent article 10. The open area 90 may have a width W4 in the transverse direction (T ) extending between the inner edge 52 of the first side layer 50 and the inner edge 62 of the second side layer 60. In various embodiments, the width W4 of the open area 90 is less than about 40 mm. In various embodiments, the width W4 of open area 90 may be from about 10 mm or 20 mm to about 30 mm or 40 mm. In various embodiments, the width W4 of open area 90 may be from about 30 mm to about 40 mm.

The center layer 40 of the top cover layer 20 may be made from any woven, nonwoven, or film sheet material that is readily permeable to body waste that may come into contact with the body facing surface 42 of the center layer 40. In various embodiments, the core layer 40 may be made from various nonwoven webs such as meltblown webs, spunbond webs, water jet bonded spunlace webs, or hot air bonded carded webs. Examples of suitable core layer 40 materials may include, but are not limited to, natural fiber webs (such as cotton), cellulosic chemical fiber webs, water jet bonded webs, bonded carded webs of polyester, polypropylene, polyethylene, nylon, or other fibers. , capable of bonding under the influence of heat (such as bicomponent fibers), polyolefins, copolymers of polypropylene and polyethylene, linear low density polyethylene and esters of aliphatic acids, such as polylactic acid. It is also possible to use films with small perforations and mesh materials, as well as laminates or combinations of these materials. An example of a material suitable for use as the center layer 40 would be a perforated polyethylene film material. An example of a suitable core layer 40 would be a bonded carded web made from polypropylene and polyethylene, such as that available from Sandler Corporation, Germany. US Pat. No. 4,801,494 to Datta et al. and US Pat. No. 4,908,026 to Sukiennik et al. and each of these documents is incorporated herein by reference in its entirety. Additional materials for the center layer 40 may include, but are not limited to, those described in U.S. Patent Nos. 4,397,644 issued to Matthews et al. Pike et al., No. 5533991 to Kirby et al., No. 6410823 to Daley et al., and U.S. Publication No. 2012/0289917 to Abuto et al., each of which is incorporated herein by reference in its entirety. completeness.

In various embodiments, the core layer 40 may include a plurality of holes (not shown) formed therein to facilitate passage of body waste products into the absorbent core 30. The holes may be randomly or uniformly distributed throughout the core layer 40 of the top cover layer 20. , or they may be located only in a narrow longitudinal strip or a strip located along the longitudinal center line 32 of the absorbent article 10. The size, shape, diameter and number of openings may vary to meet the specific requirements of the absorbent article 10.

In various embodiments, the implementation of the Central layer 40 may have a base weight in the range from about 5, 10, 15, 20 or 25 g/m ² to about 50, 100, 120, 125 or 150 g/m ² . For example, in an embodiment, the core layer 40 may be made from an air-blown carded web having a basis weight in the range of about 15 g/m ² to about 100 g/m ² . In another example, the core layer 40 may be made from an air-laminated carded web having a basis weight of from about 20 g/m ² to about 50 g/m ² , such as an air-blown carded web that is readily available from manufacturers. nonwovens such as Xiamen Yanjan Industry, Beijing, DaYuan Nonwoven Fabrics and others. Alternatively, apertured films may be used, such as films available from film suppliers such as Texol, Italy and Tredegar, USA. In various embodiments, the implementation of the Central layer 40 may be made of perforated polyethylene film having a basis weight from about 15 g/m ² to about 30 g/m ² . In various embodiments, the implementation of the Central layer 40 may be made of cotton material and have a basis weight from about 25 g/m ² to about 35 g/m ² .

In various embodiments, the core layer 40 of the top cover layer 20 is hydrophilic and has a water contact angle of less than 59°. The center layer 40 may be formed from a material that is inherently hydrophilic or from a hydrophobic material that has been subsequently treated with a hydrophilic coating, such as a surfactant treatment.

Each of the first side layer 50 and the second side layer 60 may be made from any woven, nonwoven, or film sheet materials, which may be the same or different from the material selected to form the core layer 40 of the top cover layer 20. Selection of specific materials for formation the first side layer 50 and the second side layer 60 may vary depending on the overall desired characteristics of the first side layer 50 and the second side layer 60. For example, a hydrophilic material forming the center layer 40 and semi-hydrophilic barrier type materials forming each of the first sidesheet 50 and second sidesheet 60 to prevent leakage and enhance the feeling of dryness in the area of each of the first sidesheet 50 and second sidesheet 60. For example, different nonwoven fabrics or webs may be used in each of the first sidesheet 50 and the second sidesheet 60 such as chalk canvases t-blown, spunbond or air-blown carded webs (TABCW). In various embodiments, each of the first side layer 50 and the second side layer 60 has semi-hydrophilic barrier properties, which means that the materials forming each of the first side layer 50 and the second side layer have a water contact angle of 60° or 70 ° to 80° or 89°.

The first side layer 50 and the second side layer 60 can each be bonded to the center layer 40 using an embossing technique. In various embodiments, in addition to using an embossing technique, each of the first side layer 50 and the second side layer 60 can also be bonded to the center layer 40 using adhesive, heat, or ultrasound. To bond the first side layer 50 and the second side layer 60 to the core layer 40, a conventional high strength adhesive for absorbent articles may be used. Any of the core layer 40, first and second side layers 50 and 60 may be treated with surfactants and/or skin treatments as is well known in the art.

Such longitudinally directed first side layer 50 and second side layer 60 may be single-layer or multi-layer constructions. In various embodiments, the first side layer 50 and the second side layer 60 are formed from a single layer construction. In various embodiments, the first side layer 50 and the second side layer 60 are formed by combining a mixture of hydrophilic and hydrophobic fibers together. For example, in various embodiments, the first side layer 50 and the second side layer 60 may be formed by combining 30% hydrophobic fibers and 70% hydrophilic fibers together to form a TABCW material. In various embodiments, the first side layer 50 and the second side layer 60 may be formed by combining 50% hydrophobic fibers and 50% hydrophilic fibers together to form a TABCW material. In various embodiments, the first side layer 50 and the second side layer 60 may be laminates associated with adhesives or other means. In various embodiments, the first side layer 50 and the second side layer 60 may be made of a top fibrous nonwoven layer, such as a spunbond material, laminated to a bottom layer of a hydrophobic barrier film material. Such a spunbond layer may be formed from a polyolefin, such as polypropylene, and may optionally contain a wetting agent. In various embodiments, the spunbond layer may have a basis weight of from about 10 or 12 g/m ² to about 30 or 70 g/m ² and may be treated with hydrophilic wetting agents. In various embodiments, the film layer may be perforated to allow fluid to enter the underlying layers, and may be either a single layer or a multilayer structure. In various embodiments, the implementation of such a film may be a polyolefin, such as polyethylene, having a basis weight of from about 10 to about 40 g/m ² . For layering the spunbond layer on the film layer, a high strength adhesive can be used, added in an amount of from about 0.1 g/m ² to 15 g/m ² . The film layer may also serve as a barrier layer to prevent rewetting of the first side layer 50 and the second side layer 60, as well as to prevent leakage of fluid through the side edges of the absorbent article 10. In various embodiments, the first side layer 50 and the second side layer 60 may be laminates such as spunbond-meltblown-meltblown-spunbond ("SMMS") laminate, spunbond-film laminate, or alternatively other combinations of nonwoven laminates.

As used herein, the core layer 40 may have hydrophilic properties, wherein the material constituting the core layer 40 has a water contact angle of less than 59°, and each of the first side layer 50 and the second side layer 60 may have semi-hydrophilic properties, wherein the material , forming each of the first side layer 50 and the second side layer 60 may have a water contact angle from 60° or 70° to 80° or 89°. The core layer 40, having hydrophilic properties, can assist in absorbing body exudates from the body facing surface 42 of the core layer 40 into an inner layer of the absorbent article 10, such as the absorbent core 30. Hydrophilic core layer 40 formed from soft or gentle to the skin material, such as TABCW or cotton material, however, may provide the wearer of the absorbent article 10 with a feeling of wetness, as body waste may remain associated with the hydrophilic core layer 40, or body waste may migrate from the inner layer of the absorbent article 10 back into the hydrophilic core. layer 40. The hydrophilic core layer 40 formed from the film material may provide a dry feeling to the wearer, however, the film material may cause skin irritation to the wearer of the absorbent article 10. To provide an absorbent article 10 capable of absorbing products excretion of the body, reducing the feeling of moisture and/or irritation of the skin, each of the first side layer 50 and the second side layer 60 overlaps the hydrophilic core layer 40 so that the width W4 in the transverse direction (T) of the open area 90 of the core layer 40 is less than 40 mm.

The first sidesheet 50 and the second sidesheet 60, having semi-hydrophilic properties, can also assist in absorbing any body waste products that come into contact with either or both of the first sidesheet 50 and/or the second sidesheet 60. In various embodiments, for example, the semi-hydrophilic first side layer 50 and the semi-hydrophilic second side layer 60 can be formed by combining hydrophilic fibers and hydrophobic fibers together to form a TABCW material. In various embodiments, the semi-hydrophilic first side layer 50 and the semi-hydrophilic second side layer 60 can be made from a multilayer laminate, such as by bonding a spunbond top layer to a film bottom layer. Each of the first side layer 50 and the second side layer 60 may be in an overlap configuration with a center layer 40 providing the top cover layer 20 with a first overlap region 70 and a second overlap region 80, with each of the overlap regions 70 and 80 having a width of W2 and W3, respectively, in the transverse direction (T) of at least 10 mm. The semi-hydrophilic first sidesheet 50 and the semi-hydrophilic second sidesheet 60 can provide the wearer of the absorbent article 10 with body facing surfaces 54 and 64, respectively, that can be soft and gentle on the skin, while the material properties of each of the semi-hydrophilic first sidesheet layer 50 and the semi-hydrophilic second side layer 60 may allow body waste products to pass through the semi-hydrophilic first side layer 50 and the semi-hydrophilic second side layer 60 into the inner layer, such as the absorbent core 30 of the absorbent article 10, and retain them in connection with the first sidesheet 50 and second sidesheet 60 or moved back into first sidesheet 50 and second sidesheet 60 from the core of absorbent article 10.

Since the open area 90 of the center layer 40 is less than 40 mm, the inner edge 52 of the first side layer 50 and the inner edge 62 of the second side layer 60 are located at a distance of no more than 20 mm in the transverse direction (T) from the longitudinal center line 32 of the absorbent article 10 Such a configuration may provide the absorbent article 10 with a narrow open area 90 to capture bodily waste products directly from the wearer of the absorbent article 10. In various embodiments, for example, the core layer 40 may be formed from a hydrophilic material such as TABCW or a cotton material, and each of the first side layer 50 and the second side layer 60 may be formed from a TABCW material or a laminate in which the body facing layer is a spunbond material. In these embodiments, such a combination of materials forming the top cover layer 20 can provide the wearer of the absorbent article 10 with a soft and skin-friendly top cover layer 20 while allowing body waste to be absorbed through the narrow open area 90 of the center layer 40 and weaken moisture sensations, as each of the semi-hydrophilic sidesheets 50 and 60 can reduce the amount of body waste products remaining associated with the top cover layer 20 or moving from the inner layer of the absorbent article 10, such as the absorbent core 30, back to the top cover layer 20. B various embodiments, for example, the center layer 40 may be formed from a hydrophilic material, such as an apertured polyethylene film treated to be hydrophilic, and each of the first side layer 50 and the second side layer 60 may be formed from a TABCW material or a multilayer th layered material, in which the facing layer in relation to the body is a spunbond material. In these embodiments, the narrow open area 90 of the center layer 40 may provide the absorbent article 10 with a smaller area of exposed material that may irritate the skin of the wearer of the absorbent article 10, while each of the first side layer 50 and the second side layer 60 may provide the wearer of the absorbent article 10 with soft and skin-gentle areas of the top cover layer 20, while allowing body waste to be absorbed through the narrow open area 90 of the center layer 40 and reducing the feeling of moisture, since each of the semi-hydrophilic side layers 50 and 60 can reduce body waste, remaining associated with the top cover layer 20 or moving from the inner layer of the absorbent article 10, such as the absorbent core 30, back to the top cover layer 20.

Absorbent core

The absorbent core 30 may be positioned between the top cover layer 20 and the bottom cover layer 22. The absorbent core 30 can be in general any single layer structure or combination of layer components that can have a certain degree of compressibility and conformability, as well as be non-irritating to the skin of the wearer. and capable of absorbing and retaining fluids and other bodily secretions. In addition, the absorbent core 30 may provide additional capacity to absorb and contain bodily waste products such as menses. In various embodiments, the implementation of the absorbent core 30 may be formed from a variety of different materials and may contain any number of necessary layers. For example, the absorbent core 30 may comprise one or more layers (e.g., two layers) of material in the form of an absorbent web of cellulosic fibers (e.g., wood pulp fibers), other natural fibers, synthetic fibers, woven or nonwoven sheets, mesh material in the form of gauze or other stabilizing structures, superabsorbent material, binders, surfactants, selected hydrophobic and hydrophilic materials, pigments, lotions, deodorants or the like, and combinations thereof. In an embodiment, the absorbent web material may comprise a cellulose fluff matrix and may also contain a superabsorbent material. Cellulosic pile may contain a mixture of wood pulp pile. One example of wood pulp pile can be found under the trade designation NB 416, available from Weyerhaeuser Corp., and is a highly absorbent bleached wood pulp containing primarily softwood fibers.

In various embodiments, the implementation of the absorbent core 30, if necessary, may contain an optional amount of superabsorbent material. Examples of suitable superabsorbent material may include poly(acrylic acid), poly(methacrylic acid), poly(acrylamide), poly(vinyl ether), copolymers of maleic anhydride with vinyl esters and α-olefins, poly(vinylpyrrolidone), poly(vinylmorpholinone), poly(vinyl alcohol), as well as their salts and copolymers. Other superabsorbent materials may include unmodified natural polymers and modified natural polymers such as hydrolyzed acrylonitrile grafted starch, acrylic acid grafted starch, methylcellulose, chitosan, carboxymethylcellulose, hydroxypropylcellulose, as well as natural gums such as alginates, xanthan gum, locust bean gum and etc. Blends of natural and wholly or partially synthetic superabsorbent polymers may also be used. If desired, the superabsorbent material may be present in the absorbent core 30 in any amount.

Regardless of the combination of absorbent materials used in the absorbent core 30, the absorbent materials can be formed into a web structure using a variety of conventional methods and techniques. For example, the absorbent web may be formed using techniques such as, but not limited to, dry molding techniques, air molding techniques, wet molding techniques, foam molding techniques, or the like, and combinations thereof. A coformal nonwoven may also be used. Methods and apparatus for carrying out such techniques are well known in the art.

The shape of the absorbent core 30 may vary as desired and may include any of a variety of shapes including, but not limited to, triangular, rectangular, dumbbell shape, and elliptical shape. In various embodiments, the absorbent core 30 may have a shape that generally conforms to the overall shape of the absorbent article 10. The dimensions of the absorbent core 30 may be substantially the same as the dimensions of the absorbent article 10, however, it should be understood that the dimensions of the absorbent core 30, despite similarity will often be smaller than the dimensions of the entire absorbent article 10 in order to be properly contained.

Examples of materials and/or structures suitable for the absorbent core 30 include, but are not limited to, those described in U.S. Patent Nos. 4,610,678 issued to Weisman et al. , 7358282 to Krueger et al., and US Publication No. 2010/0174260 to Di Luccio et al., each of which is incorporated herein in its entirety by reference.

As described above, in various embodiments, the implementation of the absorbent core 30 may be a single layer structure and may include, for example, a matrix of cellulose fluff and superabsorbent material. In various embodiments, the absorbent core 30 may have at least two layers of material, such as, for example, a body facing layer and a garment facing layer. In various embodiments, the implementation of the two layers may be identical to each other. In various embodiments, the implementation of the two layers may differ from each other. In such embodiments, the two layers may provide an absorbent article 10 with different absorbent properties as deemed appropriate. In various embodiments, the body facing layer of the absorbent core 30 may be made of an air-laid material and the garment facing layer of the absorbent core 30 may be made of a compressed sheet containing a superabsorbent polymer. In such embodiments, the air-laid material may have a basis weight of from about 40 g/m ² to about 200 g/m ² and the compressed sheet containing the superabsorbent polymer may be a cellulose fluff material, which may be a combination of cellulose pulp. and SAP covered by a tissue carrier and having a basis weight of from about 40 g/m ² to about 400 g/m ² .

Embossing

As described herein, the first side layer 50 is positioned in an overlap configuration with a center layer 40 and forms a first overlap region 70. Additionally, a second side layer 60 is positioned in an overlap configuration with a center layer 40 and forms a second overlap region 80. Each of the first side layer layer 50 and second side layer 60 may be bonded to the center layer 40 in each of the first overlap region 70 and the second overlap region 80 using an embossing technique. By using an embossing technique to bond each of the first side layer 50 and the second side layer 60 to the center layer 40, at least one embossment may be formed in each of the first overlap region 70 and the second overlap region 80. In addition to bonding the first side layer 50 and of the second side layer 60 with the center layer 40, when using an embossing technique to form each embossing in each of the first overlap region 70 and the second overlap region 80, the material forming the absorbent core 30 may also be compressed, due to which in the absorbent core 30 under the formed by embossing in the (Z) direction, a recess is formed into the depth of the absorbent article 10. In various embodiments where there are intermediate layer(s) of material between the top cover layer 20 and the absorbent core 30 of the article, when using an embossing technique to form each emboss in each of the first overlap region 70 and the second overlap region 80, the material of that intermediate layer(s) ), as well as the material of the absorbent core 30, can also compress, whereby a recess is formed in each intermediate layer(s) and absorbent core 30 under the formed embossing in the (Z) direction into the depth of the absorbent article 10. Therefore, each embossing may have a height in the direction (Z) into the depth of the absorbent article 10, which extends from the body facing surface 54 or 64 of each of the first side layer 50 and the second side layer 60, respectively, into at least a portion of the absorbent core 30 of the absorbent article 10.

Each embossing formed in the first overlap region 70 and the second overlap region 80 involves pressing at least a semi-hydrophilic material (first side layer 50 or second side layer 60) into a hydrophilic material (center layer 40) and ultimately into an absorbent core. 30 of the absorbent article 10. Pressing these materials together can facilitate passage of body waste products from the top cover layer 20 towards and into the absorbent core 30. In various embodiments, where in each of the first overlap region 70 and the second overlap region 80, embossing, embossing can be made in any aesthetically pleasing pattern, can be arranged in the absorbent article 10 symmetrically or asymmetrically. Therefore, the embossing can provide both an aesthetically pleasing appearance and a pattern to the absorbent article 10 that can guide body waste to the desired location and prevent body waste from flowing and/or accumulating around the edge of the absorbent article 10.

The body facing surface 54 of the first sidesheet 50 within the first overlap region 70 may have an area dimension calculated from the top down of the absorbent article 10, as shown in FIG. 1. For example, in the embodiment of the absorbent article 10 shown in FIG. 1, the first overlap region 70 may be defined by a first longitudinally extending side edge 44 of the center layer 40, an inner edge 52 of the first side layer 50, a portion of the first transversely extending end edge 12, and a portion of the second transversely extending end edge 14. Each from the boundaries of the first overlap region 70 may provide boundaries from which the area of the body facing surface 54 of the first side layer 50 within the first overlap region 70 is calculated. Similarly, the body facing surface 64 of the second side layer 60 within the second overlap region 80 may have an area dimension calculated from top to bottom of the absorbent article 10, as shown in FIG. 1. For example, in the embodiment of the absorbent article 10 shown in FIG. 1, the second overlap region 80 may be defined by a second longitudinally extending side edge 46 of the center layer 40, an inner edge 62 of the second side layer 60, a portion of the first transversely extending end edge 12, and a portion of the second transversely extending end edge 14. Each from the boundaries of the second overlap region 80 may provide boundaries from which the area of the body facing surface 64 of the second side layer 60 within the second overlap region 80 is calculated.

In various embodiments, from about 10, 15, or 20% to about 25, 30, or 35% of the area of the body facing surface 54 of the first side layer 50 within the first overlap region 70 contains at least one embossing. In various embodiments, from about 10%, 15% or 20% to about 25%, 30% or 35% of the area of the body facing surface 64 of the second side layer 60 within the second overlap region 80 contains at least one embossing.

The embossing may be provided in any shape and configuration deemed appropriate. For example, the embossing may be in the form of a circle, an oval, a square, a rectangle, a diamond, or any other geometric shape deemed appropriate. The embossing may have any length in the longitudinal direction (L) considered suitable and a width in the transverse direction (T) considered suitable. In various embodiments, an embossing located within an overlap region 70 or 80 may be entirely contained within the boundaries of the respective overlap region 70 or 80. In various embodiments, an embossing located within the overlap region 70 or 80 may extend beyond the boundary of the overlap region 70 or 80 to join with the secondary embossing located outside the overlap area 70 or 80. For example, the embossing within the first overlap area 70 may be configured to extend beyond the inner edge 52 of the first side layer 50 and join with the secondary embossing within the open area 90 of the absorbent article. ten.

The absorbent article 10 may have a front region 100, a back region 102, and a center region 104 located between the front region 100 and the back region 102. In various embodiments, the embossing may have a length in the longitudinal direction (L) such that it extends from the front region 100 through the center region 104 into the back region 102 of the absorbent article 10. In various embodiments, each of the overlap regions 70 or 80 may comprise a plurality of embossings, and each embossing may be distinct and separate from any other embossing. In various embodiments, the embossing is located only within the front region 100. In various embodiments, the embossing is located only within the central region 104. In various embodiments, the embossing is located only within the back region 102. In various embodiments, the embossing is located within each of the front area 100 and center area 104. In various embodiments, the embossing is located within each of the center area 104 and the back area 102. In various embodiments, each overlap area 70 and 80 may contain a plurality of embossings, and these many embossings may be evenly distributed throughout the area of the body facing surfaces 54 and 64 of each of the overlap areas 70 and 80, respectively. In various embodiments, each area of overlap 70 and 80 may comprise a plurality of embossings, and the central region 104 of the absorbent article 10 may have a greater concentration of the plurality of embossments than either of the front region 100 and the back region 102 of the absorbent article 10. In various embodiments, each region the overlaps 70 and 80 may comprise a plurality of embossings such that the first embossing has a length in the longitudinal direction (L) extending from the front region 100 through the central region 104 to the rear region 102, and also comprises a plurality of distinct embossings concentrated in the central region 104 of each the first overlap region 70 and the second overlap region 80. In various embodiments, each overlap region 70 and 80 may comprise a plurality of embossings such that the first embossing has a length in the longitudinal direction (L) extending from the front region 100 through the central region 104 to the rear region 102, as well as many isolated embossings that may be evenly distributed over each of the front region 100, the back region 102, and the center region 104 of each of the first overlap region 70 and the second overlap region 80.

Suitable embossing techniques include, for example, using protrusions to create the desired embossing pattern to create compression, embossing in the layers of the absorbent article 10. For example, a suitable process may include the use of heat sealing, wherein the absorbent article 10 is passed between two rollers (for example, made of steel , rubber, etc.), one of which has an embossed pattern, and the other is smooth. One or both of the rollers may become hot. In addition, heat sealing and/or ultrasonic welding techniques may be used to create the embossed areas.

Referring to FIG. 1 and 4, each of the first overlap region 70 and the second overlap region 80 may comprise a plurality of embossings. Each of the first overlap region 70 and the second overlap region 80 may comprise an embossment 110A that may extend generally in the longitudinal direction (L) of the absorbent article 10 and have such a longitudinal length that the embossment 110A may be located in each of the front region 100, the center region 104 and back region 102 of each of the first region of overlap 70 and the second region of overlap 80. Each of the first region of overlap 70 and the second region of overlap 80 may also comprise a plurality of discrete oval-shaped embossments 110B centered in the central region 104 of the absorbent article 10 The embossment 110A of the first area of overlap 70 intersects the inner edge 52 of the first side layer 50 and transitions into an open area 90 in both the front area 100 and the back area 102 of the absorbent article 10 and joins with the secondary embossment 120A in each of the front area 100 and back area 102 of the absorbent article 10. The embossing 110 of the second area overlaps The vent 80 intersects the inner edge 62 of the second side layer 60 and merges into the open area 90 in both the front area 100 and the back area 102 of the absorbent article 10 and joins in each of the front area 100 and the back area 102 with the same secondary embossing 120A, as the embossing 110A of the first overlap area 70. The open area 90 may further comprise a pair of separate secondary embossings 120B, wherein one embossing of the pair of separate secondary embossings 120B is located in the front region 100 and the other embossing of the pair of separate secondary embossings 120B is located in the back area 102 of the absorbent article 10. Referring to FIG. 3 and 6 which are cross-sectional views of the absorbent articles 10 shown in FIG. 1 and 4, respectively, along lines 3-3 and 6-6, respectively, on the transverse center line 34 of each of the absorbent articles 10, it is illustrated that each of the embossments 110A and 110B includes recesses 114A and 114B created in the absorbent core 30 of each of the absorbent products 10.

Referring to FIG. 7 and 8, each of the first overlap region 70 and the second overlap region 80 may comprise a plurality of embossings. Each of the first overlap region 70 and the second overlap region 80 may comprise an embossment 110A that may extend generally in the longitudinal direction (L) of the absorbent article 10 and have such a longitudinal length that the embossment 110A may be located in each of the front region 100, the center area 104 and back area 102 of each of the first area of overlap 70 and the second area of overlap 80. Each of the first area of overlap 70 and the second area of overlap 80 may also contain a plurality of discrete embossings 110B, depicted in the form of a circle and evenly distributed throughout the front area 100, the central region 104 and the back region 102 of each of the first region of overlap 70 and the second region of overlap 80 of the absorbent article 10. Embossment 110A of the first region of overlap 70 intersects the inner edge 52 of the first side layer 50 and merges into the open region 90 in both the front region 100 and in the back region 102 of the absorbent article 10 and is connected to the secondary embossing 120A in each of the front region 100 and the back region 102 of the absorbent article 10. The embossment 110 of the second overlap region 80 intersects the inner edge 62 of the second side layer 60 and transitions into the open region 90 in both the front region 100 and the back region 102 of the absorbent article 10 and is joined in each of the front region 100 and the back region 102 with the same secondary embossing 120A as the embossing 110A of the first overlap region 70. The open region 90 may further comprise a pair of separate secondary embossings 120B, with one embossing from a pair of separate secondary embossings. 120B is located in the front area 100, and another embossing from this pair of separate secondary embossings 120B is located in the back area 102 of the absorbent article 10.

Bottom cover layer

The bottom cover layer 22 is generally liquid impermeable and is the portion of the absorbent article 10 that faces the wearer's garment. The backsheet 22 may allow air or vapor to pass from the absorbent article 10 while still blocking the passage of liquids. In general, any liquid-impervious material can be used to form the bottom cover layer 22. The bottom cover layer 22 may consist of a single layer or multiple layers, and such one or more layers may themselves contain the same or different materials. A suitable material that can be used can be a microporous polymeric film such as polyethylene or polypropylene polyolefin film, nonwovens, and nonwoven laminates, and film/nonwoven laminates. The particular structure and composition of the bottom cover layer 22 may be selected from various known films and/or fabrics, with the particular material being chosen as appropriate to provide the desired level of fluid barrier, strength, wear resistance, tactile properties, aesthetic properties, etc. In various embodiments, a polyethylene film may be used, which may have a thickness ranging from about 0.2 or 0.5 mils to about 3.0 or 5.0 mils. An example of the bottom cover layer 22 may be a polyethylene film, such as available from Pliant Corporation, Schaumburg, Illinois, USA. Another example would include calcium carbonate-filled polypropylene film. In yet another embodiment, the backsheet 22 may be a hydrophobic nonwoven with water barrier properties, such as a nonwoven laminate, an example of which would be a four layer spunbond-meltblown-meltblown-spunbond laminate. Thus, the lower cover layer 22 may be a structure of one or more layers, for example of several layers of film or of laminates of layers of film and nonwoven fibrous material. Suitable backsheets 22 may be made from materials such as those disclosed in US Pat. No. 4,578,069 issued to Whitehead et al. et al., and No. 6376095 by Cheung et al., each of which is incorporated herein in its entirety by reference.

Additional layers

Referring to FIG. 4-6 and 8-20, in various embodiments, the absorbent article 10 may optionally comprise at least one of an acquisition layer 130, a fluid acquisition layer 132, and a distribution layer 140. In FIG. 4 is a top-down illustration of an exemplary embodiment of an absorbent article 10, FIG. 5 is an exploded perspective view of the absorbent article 10 shown in FIG. 4 and in FIG. 6 is an illustration of a cross-sectional view of the absorbent article 10 shown in FIG. 4, along lines 6-6. In FIG. 8 is a top-down illustration of an embodiment of an absorbent article 10. FIG. 9 is an exploded perspective view of an embodiment of an absorbent article 10, and FIG. 10 is a cross-sectional view of the absorbent article shown in FIG. 9, along the transverse center line. In FIG. 11 is an exploded perspective view of an embodiment of an absorbent article 10, and FIG. 12 is a cross-sectional view of the absorbent article shown in FIG. 11, along the transverse center line. In FIG. 13 is an exploded perspective view of an embodiment of an absorbent article 10, and FIG. 14 is a cross-sectional view of the absorbent article shown in FIG. 13, along the transverse center line. In FIG. 15 is an exploded perspective view of an embodiment of an absorbent article 10, and FIG. 16 is a cross-sectional view of the absorbent article shown in FIG. 15, along the transverse center line. In FIG. 17 is an exploded perspective view of an embodiment of an absorbent article 10, and FIG. 18 is a cross-sectional view of the absorbent article shown in FIG. 17, along the transverse center line. In FIG. 19 is an exploded perspective view of an embodiment of an absorbent article 10, and FIG. 20 is a cross-sectional view of the absorbent article shown in FIG. 19, along the transverse center line.

In various embodiments, the absorbent article 10 may include an acquisition layer 130 as illustrated, for example, in FIG. 9 and 10. In various embodiments, the absorbent article 10 may include a fluid absorbent layer 132, as illustrated, for example, in FIG. 4-6 and 8. In various embodiments, the absorbent article 10 may include a distribution layer 140, as illustrated, for example, in FIG. 13 and 14. In various embodiments, the absorbent article 10 may comprise an acquisition layer 130 and a fluid acquisition layer 132, as illustrated, for example, in FIG. 11 and 12. In various embodiments, the absorbent article 10 may include an acquisition layer 130 and a distribution layer 140, as illustrated, for example, in FIG. 15 and 16. In various embodiments, the absorbent article 10 may include a fluid acquisition layer 132 and a distribution layer 140, as illustrated, for example, in FIG. 17 and 18. In various embodiments, the absorbent article 10 may include an acquisition layer 130, a fluid acquisition layer 132, and a distribution layer 140, as illustrated, for example, in FIG. 19 and 20.

receiving layer

The additional layer of the absorbent article 10 may be the acquisition layer 130. The acquisition layer 130 may be any woven or non-woven material that is easily penetrated by body waste. The acquisition layer 130 can assist in absorbing, slowing down, and dispersing fluid surges or streams that may be rapidly introduced into the absorbent article 10. The acquisition layer 130 can rapidly receive and temporarily retain liquid until the liquid exits, for example, into the fluid acquisition layer 140 and/or the absorbent. core 30 or any other layer of the absorbent article 10. A variety of woven fabrics and nonwoven fabrics can be used to create the acquisition layer 130. For example, the acquisition layer 130 may comprise a nonwoven fabric layer consisting of a meltblown or spunbond web of polyolefin or polyester filaments. Such nonwoven layers may include conjugated, biconstituent and/or homopolymer staple or other length fibers and mixtures of such fibers with other fiber types. The acquisition layer 130 may be a bonded carded web or an air-laid web composed of natural and/or synthetic fibers. The bonded carded web may, for example, be a powder bonded carded web, an infrared bonded carded web, or an air bonded carded web. The bonded carded webs may optionally comprise a blend or combination of different fibers. The acquisition layer 130 typically has a basis weight of less than about 100 g/m ² , and in some embodiments, from about 10 g/m ² to about 40 g/m ² .

The acquisition layer 130 may be incorporated into the absorbent article 10 in any suitable size and shape based on the requirements of the particular absorbent article 10 in which the acquisition layer 130 is used. In various embodiments, the acquisition layer 130 may extend throughout the absorbent article 10 in the longitudinal direction. and transverse direction, and then the acquisition layer 130 has the same dimensions as the top cover layer 20. In various embodiments, the implementation of the acquisition layer 130 may have a smaller overall length in the longitudinal direction and a smaller overall width in the transverse direction than the top cover layer 20. In in various embodiments, the total length of the acquisition layer 130 may be from about 30%, 40%, or 50% to about 98%, 99%, or 100% of the total length of the top cover layer 20. In various embodiments, the total width of the acquisition layer 130 may be from about 10%, 25%, or 50% to approximately 98, 99 or 100% o the total width of the upper cover layer is 20.

Fluid absorbent layer

In various embodiments, the absorbent article 10 may include a liquid-permeable fluid-absorbing layer 132 positioned between the top cover layer 20 and the absorbent core 30. Such fluid-absorbing layer 132 may be made of a material that can rapidly transport waste products in the Z direction. organisms that enter the top cover layer 20. The fluid-absorbing layer 132 can generally be of any desired shape and/or size. In an embodiment, the fluid absorbent layer 132 may have a curved rectangular shape with a length equal to or less than the overall length of the absorbent article 10 and a width less than the width of the absorbent article 10. For example, a fluid absorbent layer 132 may be used that may be about 20, 40, or 60 mm long to about 150, 150, 175, 200, or 300 mm long and about 10, 15, or 20 mm wide to about 60, 80, or 100 mm wide. The fluid-absorbing layer 132 may have a depth direction thickness of from about 0.5 mm to about 3 mm. Any of a variety of different materials can be used for the fluid absorbent layer 132 to perform the above functions. The material may be synthetic, cellulosic, or a combination of synthetic and cellulosic materials. Absorbing fluid layer 132 may be made of any woven or non-woven material. For example, the fluid absorbent layer 132 may be in the form of an air-laid material or a TABCW material. For example, air-laid cellulosic fabrics may be suitable for use in fluid absorbent layer 132. The air-laid cellulosic fabric may have a basis weight in the range of about 10 or 100 g/m ² to about 250 or 300 g/m ² . The airlaid cellulosic fabric may be formed from hardwood and/or softwood fibers. The air-laid cellulosic fabric may have a fine porous structure and may provide excellent capillary absorption capacity, especially for menses.

Additionally, in various embodiments, to further improve the ability of the absorbent article 10 to carry body excretions in a depth (Z) direction from the top cover layer 20 to any underlying layers in the absorbent article 10, as well as to improve the ability of the fluid-absorbing layer 132 to adhere to to the body of the wearer, due to its ability to bend, the fluid absorbent layer 132 may comprise an opening 134 of the fluid absorbent layer, which may have any suitable shape, such as ovoid, round, rectangular, square, triangular, and so on. In various embodiments, the opening 134 of the fluid-absorbing layer may be elongated and may be oriented in the longitudinal direction of the absorbent article 10. The opening 134 of the fluid-absorbing layer may be defined by a perimeter 136, which may define an inner boundary, or inner edge, of the fluid-absorbing layer. 132.

The opening 134 of the fluid absorbent layer may be located at different locations along the longitudinal and transverse directions of the fluid absorbent layer 132 depending on the primary site of absorption of bodily exudates or the purpose for which the absorbent article 10 is used. For example, in various embodiments, the implementation of the fluid absorbent layer 132 and the opening 134 of the fluid-absorbing layer can be positioned so that they are generally aligned with the longitudinal center line 32 and the transverse center line 34 of the absorbent article 10. This allows the opening 134 of the fluid-absorbing layer to be placed centrally so that it can be located below the main point of excretion of bodily exudates, and so that it can serve as the main receiving area of bodily exudates in the absorbent article 10.

However, the fluid-absorbing layer 132 and the fluid-absorbing layer opening 134 need not be centrally located, and in various embodiments, depending on the primary location where body excretion may be absorbed, the fluid-absorbing layer 132 and the fluid-absorbing opening 134 The fluid-absorbing layer may be generally aligned only with respect to the longitudinal center line 32. Thus, in various embodiments, the fluid-absorbing layer 132 and the opening 134 of the fluid-absorbing layer may be longitudinally offset toward either transversely extending end edge 12 or 14 of the absorbent article 10 such that the opening 134 of the fluid absorbent layer is not substantially aligned with the transverse centerline 34.

The opening 134 of the fluid-absorbing layer may have a longitudinal length of from about 15, 20, 30, or 50 mm to about 60, 75, 100, or 150 mm and may have a transverse width of from about 10, 15, 20, or 30 mm to about 40, 60 or 80 mm. The opening 134 of the fluid-absorbing layer may be defined by a perimeter 136 and have a longitudinal length that is from about 15%, 20%, or 25% to about 70%, 75%, or 80% of the total longitudinal length of the fluid-absorbing layer 132 in the longitudinal direction. The opening 134 of the fluid-absorbing layer may be defined by a perimeter 136 and have a transverse width that can be from about 20%, 25%, or 30% to about 70%, 75%, or 80% of the total width of the fluid-absorbing layer 132 in the transverse direction. The opening 134 of the fluid-absorbing layer may serve to pass and direct body waste products from the upper cover layer 20 to the lower layers of the absorbent article 10 in the (Z) direction in depth. The opening 134 of the fluid-absorbing layer may also form a cup-shaped or alveolar structure to retain bodily exudates and prevent them from flowing from the central region of the absorbent article 10 to the edges of the absorbent article 10.

Distribution layer

In various embodiments, the absorbent article 10 may include a distribution layer 140 located under the absorbent core 30. The distribution layer 140 may increase the absorbent capacity of the absorbent article 10. The distribution layer 140 may be made from a variety of materials, such as, but not limited to, water-bonded webs. hot air bonded carded webs, meltblown webs and microfiber meltblown webs. The distribution layer 140 may contain a hydrophilic material. The distribution layer 140 may be smaller than the absorbent core 30 of the absorbent article 10.

In various embodiments, the distribution layer 140 may have a longitudinal length of from about 80, 90, 100, 110, 120, 125, or 130 mm to about 135, 140, 150, 160, 170, 180, or 190 mm, and may have a transverse width of from about 20, 30, 35 or 40 mm to approximately 45, 50, 55 or 60 mm. In various embodiments, the implementation of the distribution layer may have a density of more than about 0.1 grams per cubic centimeter. The density can be calculated using the formula: density = basis weight (g/m ² )/thickness (mm)/1000. In various embodiments, the distribution layer 40 may have a basis weight of from about 10, 20, 25, 30, or 50 g/m ² to about 60, 70, 80, 90, 100, 120, 140, 150, 160, 180, or 200 g / m ² .

In various embodiments, the distribution layer 140 may be a water-jet bonded web. The water-bonded web may comprise a water-bonded spunbond material and a pulp-based material. The water jet bonded spunbond material may comprise a polypropylene material. The spunbond material may be present in an amount of from about 10% or 15% to about 20% or 25% of the water-jet bonded web. The pulp-based material may be present in an amount of from about 75% or 80% to about 85%, 90% or 100% of the water-jet bonded web. The water-jet bonded web may have a basis weight of from about 30 or 60 g/m ² to about 90, 200 or 300 g/m ² . Without wishing to be bound by theory, it is believed that a water-jet bonded web having a higher basis weight may improve the absorbency of the distribution layer 140. In addition, it is believed that the improved absorbency of the distribution layer 140 may also result in an improved ability of the absorbent article 10 to retain fluid medium. The basis weight of the water-jet bonded web may be balanced by the desired flexibility of the absorbent article 10. In various embodiments, the distribution layer 140 may be a pulp sheet. In such embodiments, the distribution layer 140 may comprise 100% pulp-based material. In such embodiments, the implementation of the distribution layer 140 may have a basis weight of from about 30 or 60 g/m ² to about 90, 200 or 300 g/m ² . In various embodiments, the distribution layer 140 may comprise a bi-component fluid distribution layer that can increase absorbency by providing a large headspace and may be made from a hot air bonded carded web having a basis weight, in one embodiment, of from about 25 g/m ² to 100 g/m ² . In various embodiments, the distribution layer 140 may be a meltblown microfiber web of polypropylene material and may have a basis weight of from about 10 or 20 g/m ² to about 30, 50, or 100 g/m ² . In various embodiments, the microfiber-based meltblown web may be treated with wetting agents to appropriately treat body exudates. Examples of wetting agents include, but are not limited to, surfactants (or surfactants) with a hydrophilic-lipophilic balance (HLB) of at least 6, 7, or 18. Various surfactants may be used, to which may include, but are not limited to, anionic, cationic or neutral substances depending on the charge. Mixtures of surfactants and other wetting agents may also be used. The amount of wetting agents added can be from about 0.1% or 0.2% to about 5% or 10%. In various embodiments, the amount added may be greater than 10%. For example, to render a microfiber meltblown web hydrophilic, it can be treated with either Aerosol GPG from Cytec or Ahcovel Base N-62, for example. Such material is available for purchase from Yuhan-Kimberly Ltd., Seoul, Korea and FIberTex, Malaysia.

wings

Wings 26 may be made from the materials described above with respect to top cover 20 and bottom cover 22. In various embodiments, flaps 26 may include a projection of a layer of material in top cover 20 and/or bottom cover 22. As an example, the wings 26 may be formed by the projection of the top cover layer 20 and the bottom cover layer 22, which are then bonded to each other along the peripheral seal 24. Such wings 26 can be integrally formed with the main body of the absorbent article 10. Alternatively, the wings 26 can be formed independently and separately attached to the intermediate section of the absorbent article 10. Wings 26, which are made independently of the other components of the absorbent article 10, may be associated with a portion of the top cover layer 20 and/or the bottom cover layer 22. Examples of manufacturing processes for absorbent articles 10 and wings 26 include, but not limited to, as described in U.S. Patent No. 4,059,114 issued to Richards; No. 4,862,574 issued to Hassim et al.; No. 5,342,647 issued to Heindel et al. and International Publication WO1997/040804 to Emenaker et al., each of which is incorporated herein by reference in its entirety.

For the sake of brevity and conciseness, any ranges of values given herein are intended to be all values within the range and should be construed as an endorsement for claims that include any subranges having endpoints that are integer values within the given range in question. . As a possible example, the indication of a range of 1 to 5 should be considered as an endorsement for claims in relation to any of the following ranges: 1 to 5, 1 to 4, 1 to 3, 1 to 2, 2 to 5 , 2 to 4, 2 to 3, 3 to 5, 3 to 4, and 4 to 5.

The dimensions and values given in this document should not be understood as being strictly limited to the exact numerical values given. Instead, unless otherwise indicated, each such dimension shall mean both the recited value and a functionally equivalent range encompassing that value. For example, a size indicated as "40 mm" is intended to mean "approximately 40 mm".

All documents mentioned in the detailed description, in appropriate part, are incorporated herein by reference, and the mention of any document should not be construed as an admission that it is prior art with respect to the present invention. If any meaning or definition of a term in this written document conflicts with any meaning or definition of a term in a document incorporated by reference, then the meaning or definition in which the term is used in this written document shall prevail.

While specific embodiments of the present invention have been illustrated and described, it should be apparent 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 that the appended claims should cover all changes and modifications that fall within the scope of the present invention.

When presenting the elements of the present invention or preferred embodiment(s) thereof, the use of terms in the singular or plural, as well as indicating their specificity and after the definition of "specified" suggests that there are one or more elements. The words "comprising", "including" and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements. Without departing from the essence and scope of the present invention, many modifications and changes can be made to it. Therefore, the exemplary embodiments described above should not be used to limit the scope of the present invention.

Claims (28)

1. Absorbent article, characterized in that it has: a. longitudinal direction, transverse direction and depth direction; b. a longitudinal center line and a transverse center line; c. a first transversely extending end edge and a second transversely extending end edge; d. a pair of opposite longitudinally extending side edges extending between the first transverse end cream and the second transverse end edge and connecting the first transverse end edge and the second transverse end edge; e. an anterior region, a posterior region, and a central region between the anterior region and the posterior region; f. top cover layer containing: i. a hydrophilic core layer extending in the longitudinal direction of the absorbent article and symmetrically surrounding the longitudinal center line on both sides, the core layer having a first longitudinally extending side edge and a second longitudinally extending side edge; ii. a semi-hydrophilic first side layer having a water contact angle between 60° and 89°, wherein the semi-hydrophilic first side layer has a first inner edge and is in an overlap configuration with the center layer such that the first inner edge of the first side layer is closer transversely to longitudinal center line than the first longitudinally extending side edge of the center layer; and iii. a semi-hydrophilic second side layer having a water contact angle between 60° and 89°, wherein the semi-hydrophilic second side layer has a second inner edge and is in an overlap configuration with the center layer such that the second inner edge of the second side layer is closer transversely to longitudinal center line than the second longitudinally extending side edge of the center layer; iv. a first overlap region defined by a first longitudinally extending side edge of the core layer, a first inner edge of the first side layer, a first portion of the first transverse end edge of the absorbent article, and a first portion of the second transverse end edge of the absorbent article; v. a second overlap region defined by a second longitudinally extending side edge of the core layer, a second inner edge of the second side layer, a second portion of the first transverse end edge of the absorbent article, and a second portion of the second transverse end edge of the absorbent article; vi. a first body facing surface of a first overlap region having a first area, with 10% to 35% of the first area containing the first embossing; vii. a second body facing surface of a second overlap region having a second area, with 10% to 35% of the second area comprising a second embossing; g. lower cover layer; and h. an absorbent core located between the upper cover layer and the lower cover layer and containing a first recess located in the depth direction below the first embossing, and a second recess located in the depth direction below the second embossing. 2. An absorbent article according to claim 1, characterized in that the hydrophilic core has an angle of contact with water less than or equal to 59°. 3. Absorbent article according to claim 1, characterized in that the top cover layer contains an open area having a width in the transverse direction between the first inner edge of the first side layer and the second inner edge of the second side layer from 10 mm to 40 mm. 4. Absorbent article according to claim 1, characterized in that the first overlap region has a width in the transverse direction between the first longitudinally extending side edge of the central layer and the first inner edge of the first side layer of more than 10 mm. 5. Absorbent article according to claim 1, characterized in that the second overlap region has a width in the transverse direction between the second longitudinally extending side edge of the central layer and the second inner edge of the second side layer of more than 10 mm. 6. Absorbent article according to claim 1, characterized in that the first embossing extends in the longitudinal direction of the absorbent article and comprises a part located in each of the front region, the back region and the central region of the first overlap region, and the second embossing extends in the longitudinal direction of the absorbent article and contains a part located in each of the front region, the rear region and the central region of the second overlap region. 7. The absorbent article according to claim 6, further comprising a first plurality of discrete embossings located in the central region of the first overlap region and a second plurality of discrete embossings located in the central region of the second overlap region. 8. The absorbent article according to claim 6, further comprising a first plurality of discrete embossings evenly distributed over the front region, back region and central region of the first overlap region, and a second plurality of distinct embossments evenly distributed over the front region, back region and the central region of the second overlap region. 9. The absorbent article according to claim 6, characterized in that the first embossing crosses the first inner edge of the first side layer and is connected to the first secondary embossing located in the front area of the open area, the first embossing crosses the first inner edge of the first side layer and is connected to the second secondary an embossing located in the back area of the open area, wherein the second embossing intersects the second inner edge of the second side layer and is connected to the first secondary embossing in the front area of the open area, and the second embossing intersects the second inner edge of the second side layer and is connected to the second secondary embossing in the back areas. 10. Absorbent article according to claim 3, characterized in that it additionally contains a secondary embossing in the open area. 11. Absorbent article according to claim 1, characterized in that it additionally contains a receiving layer. 12. An absorbent article according to claim 1, characterized in that it further comprises a fluid-absorbing layer. 13. Absorbent article according to claim 1, characterized in that it additionally contains a distribution layer.

Images