Feminine hygiene absorbent article
By optimizing the wing design of feminine absorbent products, the problems of easy curling and poor fixation of the wings have been solved, improving the product's leak-proofness and comfort.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- KIMBERLY CLARK (CHINA) CO LTD
- Filing Date
- 2025-12-30
- Publication Date
- 2026-07-16
AI Technical Summary
The wing design of existing feminine absorbent products is unreasonable, causing them to easily curl and have poor fixation during use, affecting leak prevention and comfort.
The shape, size, and position of the wings are optimized and designed as symmetrical wings, including narrowing, widening, and tip sections, forming a mushroom or petal shape to enhance the fit and fixation with underwear.
It improves the user experience of women's absorbent products, enhances leak prevention and comfort, and reduces discomfort during use.
Smart Images
Figure CN2025146944_16072026_PF_FP_ABST
Abstract
Description
Female absorption products Technical Field
[0001] This invention relates to the field of disposable hygiene products, and more particularly to female absorbent articles with satisfactory ease of use, wearability and leak-proof properties. Background Technology
[0002] Women menstruate for about 5-7 days each month, during which menstrual blood is discharged. From the early use of toilet paper to the present day, with economic development, sanitary napkins and tampons have emerged to absorb menstrual blood. Generally, during menstruation, women place feminine absorbent pads, such as sanitary napkins, at the bottom of their underwear to absorb menstrual blood. Feminine absorbent pads have been widely used for decades. These pads are typically used during menstruation to capture menstrual blood and moisture. Users of feminine absorbent pads usually want to feel clean and dry. Many improvements to feminine absorbent pad technology attempt to improve one or both of these aspects. For example, wings have been added to feminine absorbent pads to reduce the possibility of leakage and to help secure the pad to the wearer's underwear. Additionally, absorbent core materials have been introduced that provide enhanced absorbency in relatively thin feminine absorbent pads.
[0003] Figure 1 shows an example of a feminine absorbent product with wings. This product has a longitudinal axis L1 and a transverse axis T1, with a core absorbent area near the intersection of the longitudinal axis L1 and the transverse axis T1 for rapid menstrual blood absorption. Wings of length C1 extending longitudinally are located on both sides of the absorbent product in the transverse T direction, and these wings with length C1 connect to the main body of the absorbent product with obtuse-angle openings. Figure 2 illustrates a common problem when such an absorbent product is attached to the crotch area of underwear. In this case, the wings often do not fit smoothly into the crotch area, but rather curl or stick to themselves, sometimes rendering the product unusable, resulting in a poor user experience.
[0004] In summary, there is a feminine absorbent article in the art that offers satisfactory ease of use, wearability, and leak-proof properties, allowing for improved consumer satisfaction, leak-proofness, and comfort during use. Summary of the Invention
[0005] Therefore, the object of the present invention is to provide a female absorbent article that at least partially overcomes the disadvantages of the prior art described above.
[0006] To accomplish the above-mentioned tasks, the present invention provides a female absorbent article, comprising: a. a longitudinal axis extending in a longitudinal direction and a transverse axis extending in a transverse direction; b. a front portion, a rear portion, and a middle portion extending between the front portion and the rear portion; c. a top sheet layer, a bottom sheet layer, and an absorbent core positioned between the top sheet layer and the bottom sheet layer; d. an article body symmetrically arranged about the longitudinal axis and the transverse axis; e. a pair of protective wings, wherein the pair of protective wings protrude outwardly from opposite sides of the article body in the transverse direction, each comprising: - located at the... A narrowing portion arranged longitudinally between the main body and the wing, wherein the narrowing portion has a length in the longitudinal direction ranging from 40 mm to 70 mm; a base portion adjacent to the narrowing portion and located laterally on the inner side and a top portion located on the outermost side, wherein the width of the wing is defined between the top portion and the narrowing portion in the range of 25 mm to 70 mm; and a widening portion located between the narrowing portion and the top portion, wherein the widening portion has a maximum length dimension of the wing in the longitudinal direction, wherein the maximum length dimension is in the range of 50 mm to 150 mm.
[0007] Therefore, compared with existing technologies, the optimized design of the shape, size, and position of the protective wings effectively improves the user experience, comfort, and leak-proof performance of feminine absorbent products. At the same time, the protective wings of the feminine absorbent product according to the present invention provide consumers with a pleasant sensory experience and offer significantly superior convenience in terms of easy folding and application compared to existing technologies.
[0008] As a preferred aspect, the wing has a centerline extending in the lateral direction, wherein the centerline is arranged at a distance from the lateral edge of the female absorbent article in the range of 90 mm to 210 mm.
[0009] As a preferred aspect, the narrowed portion of the wing defines a generally V-shaped opening that gradually widens toward the upper edge in the transverse direction between the longitudinal side edge of the absorbent article and the wing's narrowed portion, wherein the V-shaped opening has an angle between 10 and 80 degrees.
[0010] As a preferred aspect, the main body of the article is generally in the shape of a racetrack, with a length in the range of 150 to 400 mm and a width in the range of 50 to 80 mm.
[0011] As a preferred aspect, the length of the narrowing portion in the longitudinal direction is in the range of 45 mm to 50 mm and the width of the wing in the transverse direction is in the range of 35 mm to 50 mm, wherein the widening portion is generally centrally located within the wing and has a length in the range of 40 mm to 80 mm.
[0012] As a preferred aspect, the widened portion and the narrowed portion have a gradually expanding smooth curve and the top portion and the widened portion have a gradually narrowing arc curve, so that the protective wing is generally mushroom-shaped.
[0013] As a preferred aspect, the width of the wing in the lateral direction is in the range of 60 mm to 70 mm and the widened portion has a length in the range of 70 mm to 80 mm.
[0014] As a preferred aspect, the protective wing is generally petal-shaped.
[0015] As a preferred aspect, the article body has a core absorption region aligned with the longitudinal and transverse axes, wherein the core absorption region is used to transfer body effluents downward from the top sheet layer along the depth direction.
[0016] As a preferred aspect, the main body of the article also has lateral flow deflectors arranged around the core absorption area in a closed or semi-closed shape, wherein the lateral flow deflectors are selected from any of the following: embossing, groove, perforation, and channel. Attached Figure Description
[0017] Figure 1 shows a plan view of a female absorbent article according to the prior art;
[0018] Figure 2 shows a diagram of the usage state of a feminine absorbent article according to the prior art, which shows undesirable adhesion such as curling of the wings;
[0019] Figures 3 and 3A show plan views of a first embodiment of the female absorbent article according to the present invention, wherein Figure 3A shows an enlarged view of the protective wings of the first embodiment of the female absorbent article according to the present invention;
[0020] Figures 4 and 4A show plan views of a second embodiment of the female absorbent article according to the present invention, wherein Figure 4A shows an enlarged view of the protective wings of the second embodiment of the female absorbent article according to the present invention;
[0021] Figure 5 shows a usage state diagram according to the embodiment in Figure 4;
[0022] Figure 6 shows a view of underwear to be fixed on the female absorbent article according to the present invention;
[0023] Figure 7 shows a diagram of the use of the female absorbent article according to the present invention, in which the wings are shown to be ideally bonded.
[0024] Explanation of reference numerals in the attached drawings: 100 - Female absorbent product; 100A - Front; 100B - Middle; 100C - Rear; 101 - Top layer; 102 - Bottom layer; 103 - Absorbent core; 103A - Absorbent material; 104 - Wings; 104A - Narrowing section; 104B - Widening section; 104C - Top tip; 104D - Base tip; 105 - Adhesive backing; 106 - Main body of the product; 110A - Upper edge in the transverse direction; 110B - Lower edge in the transverse direction; 111A, 111B - Side edges in the longitudinal direction; 113 - Core absorbent area; L1 - Longitudinal axis; T1 - Transverse axis; T - Transverse; L - Longitudinal; Z - Vertical; D1 - Spacing; a - Angle; d1 - Length of narrowing section; W1 - Width of main body; C1 - Length of main body; Detailed Implementation
[0025] Those skilled in the art will understand that the following detailed description of embodiments is merely an illustration of exemplary models and is not intended to limit the broader aspects of this disclosure.
[0026] The female absorbent product according to the present invention.
[0027] Certain directional terms used in the description of the accompanying drawings below, such as “inner,” “outer,” “upper,” “lower,” and other directional terms, shall be understood to have their normal meaning and refer to those directions involved when normally viewing the drawings. Unless otherwise specified, the directional terms used in this specification are generally in accordance with the conventional directions understood by those skilled in the art.
[0028] The terms “first,” “first,” “second,” “second,” and similar terms used in this invention do not indicate any order, quantity, or importance, but are used to distinguish one component from other components.
[0029] Terminology Definition
[0030] The terms “disposable” or “reusable” are used herein to describe absorbent articles that are not typically intended to be washed or otherwise restored to or reused as absorbent articles (e.g., they are designed to be discarded after a single use and may also be configured to be recyclable, compostable, or disposed of in other environmentally compatible ways). The embodiments of the female absorbent articles described herein are disposable.
[0031] The term “female absorbent products” (also known as “sanitary napkins”) in this document refers to personal care absorbent products for clothing or other end-use, including but not limited to menstrual products such as sanitary napkins, feminine pads, panty liners, and urinary incontinence devices.
[0032] Regarding structural terminology, the terms “set up” or “equipped with” are used herein to indicate that one or more elements are located in a particular place or position as part of a macroscopic overall structure with other elements or as separate elements joined to another element.
[0033] As used herein, the term "joint" includes a configuration in which an element is directly fixed to another element by directly attaching the element to the other element, and a configuration in which an element is indirectly fixed to another element by attaching the element to an intermediate member (which in turn is attached to the other element).
[0034] As used herein, the terms “proximal” and “distal” refer to the position of an element relative to the longitudinal or lateral centerline of the structure, respectively (e.g., relative to the same longitudinal axis, the proximal edge of a longitudinally extending element is closer to the longitudinal axis than the distal edge of the same element).
[0035] As used herein, the terms “body-facing” and “clothing-facing” refer to the relative position of an element or the relative position of the surfaces of an element or group of elements, respectively. “Body-facing” means that during wear, an element or surface is closer to the wearer than some other elements or surfaces. “Clothing-facing” means that during wear, an element or surface is further away from the wearer than some other elements or surfaces (i.e., the element or surface is closer to the wearer’s clothing, which may be worn over a disposable absorbent fabric).
[0036] As used herein, the term “machine orientation (MD)” refers to the length of the female absorbent article in the direction in which it is manufactured, and may also be referred to herein as longitudinal rather than “cross machine orientation (CD)”, which refers to the width of the female absorbent article in a direction generally perpendicular to the machine orientation, and may also be referred to herein as transverse.
[0037] As used herein, the term "meltblown mesh" refers to a nonwoven mesh formed by a process in which molten thermoplastic material is extruded as molten fibers through multiple fine, typically circular, die capillaries into a converging high-speed gas (e.g., air) stream. The air stream thins the fibers of the molten thermoplastic material to reduce their diameter, which can be the diameter of a microfiber. The molten fibers are then carried by the high-speed gas stream and deposited on a collecting surface to form a mesh of randomly dispersed meltblown fibers.
[0038] As used herein, the term "nonwoven fabric" or "nonwoven web" refers to a web having a structure consisting of interlayered but not individually identifiable fibers or threads as in a knitted fabric. Nonwoven fabrics or webs have been formed by a variety of processes, such as meltblown, spunbond, air-permeable bonded carded web (also known as BCW and TABCW), etc. The basis weight of nonwoven webs can typically vary, for example, from about 5, 10, or 20 gsm to about 120, 125, or 150 gsm.
[0039] As used herein, the term "spunbond web" refers to a web comprising substantially continuous fibers of small diameter. These fibers are formed by extruding molten thermoplastic material from capillaries of multiple fine, typically circular, spinnerets having the diameter of the extruded fibers, and then rapidly thinning it by, for example, drawing and / or other well-known spunbonding mechanisms.
[0040] As used herein, the terms “superabsorbent polymer,” “superabsorbent,” or “SAP” are to be used interchangeably and should refer to polymers that can absorb and retain a very large amount of liquid relative to their own mass. Superabsorbent polymers are classified as crosslinkable hydrogels that absorb aqueous solutions through hydrogen bonds and other polar forces with water molecules. The water-absorbing capacity of SAP is based in part on its degree of ionization (a coefficient of ion concentration in aqueous solutions) and the hydrophilic polar functional groups of SAP. SAP can exist in absorbent articles in particulate or fibrous form or as a coating on another material or fiber.
[0041] Female absorption products
[0042] The female absorbent article 100 according to the present invention may have improved attachment to the wearer's underwear and may maintain proper placement within the wearer's underwear. The female absorbent article 100 described herein may have a top sheet layer, a bottom sheet layer, an absorbent core positioned between the top sheet layer and the bottom sheet layer, and a pair of opposing wings that maintain the placement of the female absorbent article 100 within the wearer's underwear.
[0043] Referring first to Figure 3, Figure 3 illustrates a top view of an exemplary embodiment of the female absorbent article 100. Here, the female absorbent article 100 shown in Figure 3 may have a longitudinal direction (L), a transverse direction (T), and a vertical direction (Z direction, i.e., the depth direction described later). The female absorbent article 100 may have a longitudinal axis L1 and a transverse axis T1. The female absorbent article 100 may have a liquid-permeable top sheet layer 101 facing the wearer and a liquid-impermeable bottom sheet layer 102 facing the clothing. An absorbent core 103 may be positioned between the top sheet layer 101 and the bottom sheet layer 102. The female absorbent article 100 may have a transverse upper edge 110A, a transverse lower edge 110B opposite to the transverse upper edge 110A, and a pair of opposing longitudinal side edges 111A and 111B. In various embodiments, the female absorbent article 100 may present a variety of geometries, but will generally have a pair of opposing transverse direction upper edges 110A and lower edges 110B and a pair of opposing longitudinal direction side edges 111A and 111B.
[0044] Both the top film layer 101 and the bottom film layer 102 can extend beyond the outermost peripheral edge of the absorber core 103 and can be fully or partially bonded together at the periphery using known bonding techniques for forming a sealed peripheral region. For example, the top film layer 101 and the bottom film layer 102 can be bonded together by adhesive bonding, ultrasonic bonding, or any other suitable bonding method known in the art.
[0045] The female absorbent article 100 may have a front portion 100A, a rear portion 100C, and a middle portion 100B extending between the front portion 100A and the rear portion 100C. Generally, the front portion 100A of the female absorbent article 100 is adapted to be worn facing the wearer's front and close to the lower abdomen, the middle portion 100B is adapted to be worn close to the wearer's crotch, and the rear portion 100C is adapted to be worn facing the wearer's rear and close to the buttocks. In various embodiments, the female absorbent article 100 may have a length as measured in the longitudinal direction (L) between the upper edge 110A and the lower edge 110B in the transverse direction, and the front portion 100A may be defined as the first third of the length of the female absorbent article 100, the middle portion 100B may be defined as the middle third of the length of the female absorbent article 100, and the rear portion 100C may be defined as the rear third of the length of the female absorbent article 100. It should be understood that each of the front portion 100A, the middle portion 100B, and the rear portion 100C may vary depending on what is considered suitable for use with the female absorbent article 100.
[0046] In various embodiments, the feminine absorbent article 100 may have a pair of wings 104 extending outward from the feminine absorbent article 100 in a lateral direction T. The wings 104 may fold downward in a wing folding area and may cover the edge of the wearer's underwear, thereby positioning the wings 104 between the edge of the wearer's underwear and her thigh. The wings 104 can prevent soiling of the wearer's underwear by forming a barrier along the edge of the underwear. In various embodiments, the wings 104 may be extensions of the material forming the top sheet layer 101 and / or the bottom sheet layer 102, such that the wings 104 can have an integral construction with the feminine absorbent article 100. In various embodiments, the wings 104 may be constructed of a material similar to the top sheet layer 101, the bottom sheet layer 102, or a combination of these materials. In various embodiments, the wings 104 may be separate elements incorporated into the body of the feminine absorbent article 100.
[0047] The following will describe each of the various components of the female absorption product 100 and optional additional components in more detail.
[0048] Top layer
[0049] The topsheet layer 101 defines the wearer-facing surface of the feminine absorbent article 100, which is in direct contact with the wearer's body and is liquid-permeable to receive bodily fluids. The topsheet layer 101 advantageously provides comfort and a snug fit, and functions to guide bodily fluids through its own structure and away from the body towards the absorbent core 103. The topsheet layer 101 advantageously retains little or no liquid in its structure, thus providing a relatively comfortable and non-irritating surface against the wearer's skin.
[0050] Top sheet 101 can be a single layer of material, or alternatively, multiple layers laminated together. Top sheet 101 can be constructed from any material, such as one or more woven sheets, one or more fibrous nonwoven sheets, one or more film sheets (e.g., blown or extruded films, which may themselves have single or multiple layers), one or more foam sheets (e.g., mesh, open-cell, or closed-cell foam), coated nonwoven sheets, or any combination of these materials. Such combinations can be adhesively, thermally, or ultrasonically laminated into an integral planar sheet structure to form top sheet 101.
[0051] In various embodiments, the topsheet layer 101 may be constructed from a variety of nonwoven webs, such as meltblown webs, spunbond webs, water-wound hydroentangled webs, or air-permeable bonded carded webs. Examples of suitable materials for the topsheet layer 101 may include, but are not limited to, natural fiber webs (such as cotton), rayon, hydroentangled webs, polyester, polypropylene, polyethylene, nylon or other thermally bondable fibers (such as bicomponent fibers), polyolefins, copolymers of polypropylene and polyethylene, linear low-density polyethylene, and bonded carded webs of aliphatic esters (such as polylactic acid). Perforated film and web materials may also be used, as well as laminates or combinations thereof.
[0052] In various embodiments, the top sheet layer 101 may include a plurality of orifices (not shown) formed therethrough to allow bodily effluent to be more easily transferred into the absorbent core 103. The orifices may be arranged randomly or uniformly throughout the top sheet layer 101. The size, shape, diameter, and number of orifices may vary to meet the specific needs of the female absorbent article 100.
[0053] In various embodiments, the top sheet layer 101 may have a basis weight ranging from about 5, 10, 15, 20, or 25 gsm to about 50, 100, 120, 125, or 150 gsm. For example, in one embodiment, the top sheet layer 101 may be constructed from an air-permeable bonded combed web having a basis weight ranging from about 15 gsm to about 100 gsm. In another example, the top sheet layer 101 may be constructed from an air-permeable bonded combed web with a basis weight ranging from about 20 gsm to about 50 gsm.
[0054] In various embodiments, the topsheet layer 101 may be at least partially hydrophilic. In various embodiments, a portion of the topsheet layer 101 may be hydrophilic, and a portion of the topsheet layer 101 may be hydrophobic. In various embodiments, the hydrophobic portion of the topsheet layer 101 may be an inherently hydrophobic material, or it may be a material treated with a hydrophobic coating.
[0055] In various embodiments, the topsheet layer 101 may be a multi-component topsheet layer 101, for example, by having two or more different nonwoven or film materials, wherein the different materials are placed in separate locations in the transverse direction T of the female absorbent article 100. For example, the topsheet layer 101 may be a two- or multi-component material having a central portion positioned along and straddling the longitudinal axis L1 of the female absorbent article 100, while lateral portions are located on the flanks of each side edge of the central portion and are attached to each side edge. The central portion may be constructed of a first material, and the lateral portions may be constructed of a material that may be the same as or different from the material of the central portion.
[0056] Absorption core
[0057] The absorbent core 103 may be positioned between the top sheet layer 101 and the bottom sheet layer 102. The absorbent core 103 can typically be any single-layer structure or combination of layer components that exhibits a degree of compressibility, fit, non-irritation to the wearer's skin, and the ability to absorb and retain liquids and other bodily excretions. Additionally, the absorbent core 103 may provide the additional ability to absorb and retain bodily excretions such as menstrual flow. In various embodiments, the absorbent core 103 may be formed from a variety of different materials and may include any number of desired layers. For example, the absorbent core 103 may include one or more layers (e.g., two layers) of the following absorbent web materials: cellulose fibers (e.g., wood pulp fibers), other natural fibers, synthetic fibers, woven or nonwoven sheets, loosely woven webs or other stabilized structures, superabsorbent materials, binder materials, surfactants, selected hydrophobic and hydrophilic materials, pigments, detergents, odor control agents, and combinations thereof. In one embodiment, the absorbent web material may include a matrix of cellulose fibers and may also include a superabsorbent material. The cellulose fibers may include blends of wood pulp fibers.
[0058] In various embodiments, the absorbent core 103 may include optional amounts of superabsorbent material, if desired. Examples of suitable superabsorbent materials may include poly(acrylic acid), poly(methacrylic acid), poly(acrylamide), poly(vinyl ether), copolymers of maleic anhydride with vinyl ether and α-olefin, poly(vinylpyrrolidone), poly(vinylmorpholinone), poly(vinyl alcohol), and their salts and copolymers. Other superabsorbent materials may include unmodified and modified natural polymers, such as hydrolyzed acrylonitrile-grafted starch, acrylic acid-grafted starch, methylcellulose, deacetylated chitosan, carboxymethyl cellulose, hydroxypropyl cellulose, and natural gums such as alginate, xanthan gum, locust bean gum, etc. Mixtures of natural and wholly or partially synthetic superabsorbent polymers may also be used. The superabsorbent material may be present in the absorbent core 103 in any amount as needed.
[0059] The shape of the absorbent core 103 can vary as needed and may include any of a variety of shapes, including but not limited to triangular, rectangular, dog-bone shaped, and oval shapes. In various embodiments, the absorbent core 103 may have a shape that generally corresponds to the overall shape of the female absorbent article 100. The size of the absorbent core 103 may be substantially similar to the size of the female absorbent article 100, but it should be understood that the size of the absorbent core 103 is often smaller than the size of the entire female absorbent article 100 in order to be adequately contained therein.
[0060] As described above, in various embodiments, the absorbent core 103 may be a single-layer structure and may include a matrix such as cellulose fibers and superabsorbent materials. In various embodiments, the absorbent core 103 may have at least two layers of material, such as a body-facing layer and a clothing-facing layer. In various embodiments, the two layers may be identical to each other. In various embodiments, the two layers may be different from each other. In such embodiments, the two layers may provide different absorbent properties to the feminine absorbent article 100 as deemed suitable. In various embodiments, the body-facing layer of the absorbent core 103 may be constructed of an air-laid material and the clothing-facing layer of the absorbent core 103 may be constructed of a compressed sheet comprising a superabsorbent polymer. In such embodiments, the air-laid material may have a basis weight from about 40 gsm to about 200 gsm, and the compressed sheet comprising the superabsorbent polymer may be a cellulose fiber-based material, which may be a combination of cellulose pulp and SAP encapsulated by a thin paper carrier with a basis weight of about 40 gsm to about 400 gsm, as indicated by 103A in FIG3.
[0061] film layer
[0062] The backing layer 102 is generally liquid-impermeable and is part of the female absorbent article 100 of clothing facing the wearer. The backing layer 102 allows air or vapor to escape from the female absorbent article 100 while still blocking the passage of liquids. Any liquid-impermeable material can generally be used to form the backing layer 102. The backing layer 102 can consist of a single layer or multiple layers, and these one or more layers may themselves comprise similar or different materials. Suitable materials that can be used include microporous polymer films, polyolefin films such as polyethylene or polypropylene, nonwoven fabrics and nonwoven laminates, and film / nonwoven laminates. Specific structures and compositions of the backing layer 102 can be selected from a variety of known films and / or fabrics, with specific materials appropriately selected to provide desired levels of liquid barrier, strength, abrasion resistance, tactile properties, aesthetics, etc.
[0063] In various embodiments, a polyethylene film may be used, having a thickness ranging from about 0.2 or 0.5 mils to about 3.0 or 5.0 mils. An example of the substrate layer 102 may be a polyethylene film. Another example may include a polypropylene film filled with calcium carbonate. In yet another embodiment, the substrate layer 102 may be a hydrophobic nonwoven material with water-barrier properties, such as a nonwoven laminate, an example of which may be a four-layer laminate of spunbond-meltblown-meltblown-spunbond. Thus, the substrate layer 102 may have a single-layer or multi-layer structure, such as having multiple film layers or laminates of film layers and nonwoven fiber layers.
[0064] Optional additional parts
[0065] In various embodiments, the female absorbent article 100 may optionally include at least one of a fluid inhalation layer, a transfer delay layer, a flow layer, and / or a distribution layer positioned between the top film layer 101 and the bottom film layer 102.
[0066] Fluid suction layer
[0067] In various embodiments, the female absorbent article 100 may include a liquid-permeable fluid-absorbing layer (not shown) positioned between a topsheet layer 101 and an absorbent core 103. Such a fluid-absorbing layer may be made of a material capable of rapidly transferring bodily effluent delivered to the topsheet layer 101 in the Z-direction. The fluid-absorbing layer may generally have any desired shape and / or size. For example, the fluid-absorbing layer may have a length between about 20 mm and about 300 mm and a width between about 10 mm and about 100 mm. The fluid-absorbing layer may have a thickness between about 0.5 mm and about 3 mm in the vertical direction. Any of a variety of different materials may be used for the fluid-absorbing layer. The material may be synthetic, cellulose-based, or a combination of synthetic and cellulose materials. The fluid-absorbing layer may be constructed from any woven or nonwoven material. For example, the fluid-absorbing layer may be constructed as an air-laid or TABCW material. For example, air-laid cellulose tissue paper may be suitable for the fluid-absorbing layer. Air-laid cellulose tissue paper can have a basis weight ranging from about 10 gsm or 100 gsm to about 250 gsm or 300 gsm. Air-laid cellulose tissue paper can be formed from hardwood and / or softwood fibers. Air-laid cellulose tissue paper can have a fine porous structure and provide excellent wicking capacity, especially for menstrual blood.
[0068] As shown in Figure 3, to further enhance the ability of the female absorbent article 100 to transfer bodily fluids from the top layer 101 to any lower layer of the female absorbent article 100 in the depth direction (Z), and to enhance the ability of the fluid absorption layer to conform to the wearer's body based on its flexibility, a core absorbent region 113 for fluid penetration is provided. This core absorbent region can be achieved, for example, by perforating the preferably cotton-containing absorbent core. More specifically, this core absorbent region 113 defines an area of the female absorbent article 100 for absorbing bodily fluids such as menstrual blood in a short period of time, where it has a higher menstrual blood absorption capacity than other parts. Although the core absorbent region 113 shown here is oval, those skilled in the art will understand that the core absorbent region 113 can be any suitable shape, such as circular, rectangular, square, triangular, etc. In various embodiments, the core absorbent region 113 in the fluid absorption layer can be elongated and can be oriented in the longitudinal direction (X) of the female absorbent article 100. The core absorbent area 113 may also be formed into a cup-shaped or well-shaped structure to retain bodily excretions and prevent them from moving away from the area of the female absorbent product 100 and leaking towards the edge of the female absorbent product 100.
[0069] Depending on the primary location of bodily effusion aspiration or the intended use of the feminine absorbent article 100, the core absorbent region 113 may be located at different positions along the longitudinal and transverse directions of the fluid aspiration layer. For example, in various embodiments, the fluid aspiration layer and the core absorbent region 113 may be positioned such that they are substantially aligned with the longitudinal central axis L1 and the transverse axis T1 of the feminine absorbent article 100. This allows the core absorbent region 113 to be centrally positioned, allowing it to be located below the primary point of bodily effusion discharge and to function as the primary bodily effusion receiving area of the feminine absorbent article 100. Here, the core absorbent region 113 may have a longitudinal length from about 15 mm to about 180 mm and a transverse width from about 10 mm to about 40 mm.
[0070] Furthermore, as an optional but not essential design aspect, the feminine absorbent article 100 may also have one or more lateral deflectors 114, which, as shown in FIG3, are preferably designed as, for example, closed or semi-closed shapes. The lateral deflectors 114 may be arranged around the core absorbent region 113 in the central region of the feminine absorbent article 100 to prevent lateral leakage when excessive bodily fluids or menstrual blood cannot easily seep down through the core absorbent region 113, as shown in FIG3, for example. The lateral deflectors 114 may be manufactured by adding rigid materials, embossing, grooves, perforations, channels, and combinations thereof. In various embodiments, the lateral deflectors 114 may be manufactured by embossing one or more elements of the feminine absorbent article 100.
[0071] Transfer Delay Layer
[0072] In various embodiments, the female absorbent article 100 may include a liquid-permeable transfer delay layer (not shown) positioned in the depth (Z) direction below the top sheet layer 101. The transfer delay layer may comprise a substantially hydrophobic material. For example, the transfer delay layer may be a nonwoven fiber web composed of relatively hydrophobic materials such as polypropylene, polyethylene, polyester, etc., and may also be composed of blends of such materials. An example of a suitable material for the transfer delay layer may be a spunbond web composed of polypropylene multilobed fibers. Another example of a suitable transfer delay layer material may include a spunbond web composed of polypropylene fibers that may be circular, trefoil, or multilobed in cross-sectional shape and may be hollow or solid in structure. Typically, the web is bonded, for example, by thermal bonding over about 3% to about 30% of the web area.
[0073] Flow layer
[0074] An additional layer between the top sheet layer 101 and the absorbent core 103 may include a well-known flow layer. The flow layer (not shown) may be constructed of any woven or nonwoven material that is easily permeable to bodily fluids. The flow layer can help absorb, slow down, and diffuse flow or outflow of liquid that may be rapidly introduced into the feminine absorbent article 100. The flow layer can rapidly receive and temporarily retain liquid before it is released into, for example, the absorbent core 103 of the feminine absorbent article 100 or any other layer. A variety of woven fabrics and nonwoven webs can be used to construct the flow layer. For example, the flow layer may include a nonwoven fabric layer made of meltblown or spunbond webs of polyolefin or polyester filaments. Such nonwoven fabric layers may include conjugates, bicomponent and homopolymer fibers having fiber lengths or other lengths, and mixtures of such fibers with other types of fibers. The flow layer may also be an adhesive-bonded or air-blown web made of natural and / or synthetic fibers. The adhesive-bonded web may be, for example, a powder-bonded web, an infrared-bonded web, or an air-permeable adhesive web. The bonded carded web may optionally contain a mixture or blend of different fibers. The flow layer typically has a basis weight of less than about 100 gsm and in some embodiments from about 10 gsm to about 40 gsm.
[0075] Distribution layer
[0076] The absorbent system may have a distribution layer (not shown) positioned below the absorbent core 103. The distribution layer may increase the absorbency of the feminine absorbent article 100. The distribution layer may be made of various materials, such as, but not limited to, spunlace mesh, air-permeable bonded combed mesh, meltblown mesh, and meltblown microfiber mesh. The distribution layer may include a hydrophilic material. The distribution layer may be smaller in size than the absorbent core 103 of the feminine absorbent article 100. In various embodiments, the distribution layer may have a longitudinal length greater than 50 mm, preferably from about 80 mm to about 190 mm, and a transverse width from about 30 mm to about 60 mm. In various embodiments, the distribution layer may have a basis weight from about 10 gsm to about 200 gsm.
[0077] Wings
[0078] The inventors of this invention have discovered that the main reason for the unsatisfactory experience of existing feminine absorbent products (as shown in Figures 1 and 2) lies in the design of the shape, size, and position of the wings. Therefore, optimizing the aforementioned aspects of the wings in the prior art will help improve the user experience, comfort, and leak-proof performance of feminine absorbent products.
[0079] Specifically, the inventors discovered that the shape and size design of the wings in existing absorbent fabrics for women are inadequate. For example, excessively long wings hinder the product from adhering to the center of the crotch area of the underwear, or when folded into the crotch area, messy curling edges appear at the front and back of the wings, causing discomfort or poor fixation. Furthermore, the obtuse angle design between the wings and the main body of the fabric makes it difficult to effectively fold and secure the wings, or causes them to curl and stick together during folding. Simultaneously, insufficient wing width limits the area covered by the wings after folding into the crotch area, resulting in poor fixation and shifting during use. Finally, the positioning of the wings relative to the main body is suboptimal; in existing products, the wings are too far forward or too far back, causing the center of the absorbent fabric to deviate significantly from the drainage opening after the product is attached to the underwear, leading to leakage due to reduced absorption efficiency.
[0080] To address the aforementioned shortcomings, the inventors of this invention have proposed the protective wings 104 shown in Figures 3 and 4 according to the present invention. Specifically, as shown in Figures 3 and 3A, a pair of protective wings 104 extend laterally from opposite longitudinal side edges 111A and 111B of the absorbent article 100 on both sides of the absorbent article 100. Here, the protective wings 104 are fixedly connected to the corresponding portion of the absorbent article 100 via a narrowing portion 104A arranged in the longitudinal direction L (only the narrowing portion 104A on the left side is shown in Figures 3 and 3A, but the same design also exists on the right side). The article body 106 shown in Figures 3 and 3A is generally designed in a racetrack shape with a length C1 and a width W1. By way of example only, the length C1 of the article body 106 is generally in the range of 150 to 400 mm and the width W1 is generally in the range of 50 to 80 mm.
[0081] In the wing 104 shown in Figures 3 and 3A, the length d1 of the narrowed portion 104A along the longitudinal direction L is designed to be in the range of 40 mm to 70 mm, preferably in the range of 45 to 50 mm. The inventors of this invention have discovered that, when the female absorbent article 100 is fixed to the crotch of a woman's underwear as described below, the narrowed portion 104A serves as a folding area for the wing 104 to fold towards the crotch of the underwear. Since the crotch of the women's underwear is designed as an arc 1041 that widens from its narrowest point to both sides, if the length of the narrowed portion 104A is designed to be too large, the generally vertically extending narrowed portion 104A is difficult to conform well to the arc of the crotch of the women's underwear simultaneously along its entire length. This easily causes the wing 104 to curl or misalign during folding towards the crotch of the underwear, thus affecting the fixation of the female absorbent article 100. Meanwhile, since the narrowing portion 104A is used to ensure the connection strength and rigidity between the main body 106 and the protective wing 104, if the length of the narrowing portion 104A is too small, the connection strength or rigidity of the protective wing 104 may be insufficient, resulting in the unfavorable situation that the protective wing 104 may break from the main body 106 when the disposable absorbent product 100 is removed and discarded. After careful research and repeated experiments on current women's underwear designs, the inventors confirmed that designing the length d1 of the narrowing portion 104A in the longitudinal direction L to be in the range of 40 mm to 70 mm, preferably in the range of 45 mm to 50 mm, is satisfactory.
[0082] As shown in Figures 3 and 3A, the narrowed portion 104A and the longitudinal side edge 111A of the main body 106 define openings that gradually increase in size towards the upper and lower edges 110A and 110B in the transverse direction, respectively. These openings, as shown in Figures 3 and 3A, have generally V-shaped edges. The included angle α formed by the two edges of this V-shaped opening is approximately in the range of 10 to 80 degrees, preferably in the range of 30 to 40 degrees. Here, as shown in Figure 3, the gradually increasing, slightly curved edges of the narrowed portion 104A are linearly fitted to form an included angle α between two intersecting lines. Thus, by means of the V-shaped opening with such an acute angle design, the relative movement of the main body 106 and the wing 104 in the left-right direction (transverse direction T) in Figures 3 and 3A, particularly the movement of the wing 104 relative to the main body 106 in the T direction, becomes free. As a result, when the absorbent article 100 is attached to women's underwear (as shown in Figure 7), the narrowing portion 104A also functions as a guide when bending the wings 104 relative to the main body 106 along the two sides of the inner thigh of the women's underwear, making the bending and fixing actions easier. Therefore, the sharp-angled V-shaped opening design and the narrowing portion 104A of a selected length together reduce the area of the wing 104 that can contact the skin of the inner thigh, thereby reducing the area of the wing 104 that rubs against the thigh during human activity, thus reducing the possibility of the wing 104 curling or self-adheding after human activity. As a result, the synergistic effect of the sharp-angled V-shaped opening design and the narrowing portion 104A of a selected smaller length allows the wing 104 to not only not cause discomfort to the wearer's inner thigh or its vicinity, but also not cause a decrease in the absorbency of the absorbent article 100 or leakage of bodily fluids.
[0083] Furthermore, the wing 104 here has a base portion 104D or root portion adjacent to the narrowing portion 104A and located on the inner side of the transverse direction T relative to the transverse axis T1 (which is adjacent to the article body 106, specifically adjacent to the side edge of the article body 106 at the intersection with the transverse axis T1) and a top portion 104C located on the outermost side of the transverse direction T1 relative to the transverse axis T1, thereby defining the width w1 of the wing 104 transversely between the top portion 104C and the narrowing portion 104A having a length d1 in the longitudinal direction L. Here, the width w1 of the wing 104 in the transverse direction T is designed to be in the range of 25 mm to 70 mm, preferably in the range of 35 to 50 mm. The inventors of the present invention have discovered that the width w1 of the wing 104 arranged on opposite sides of the article body 106 along the transverse direction T serves as the area that fits against the crotch of the underwear when the female absorbent article 100 is fixed to the crotch of the female underwear. Therefore, to ensure that the wing 104 has a sufficient contact area to cover the crotch of the underwear and ensure fixation, the width w1 of the wing 104 is not less than 25 mm, preferably not less than 35 mm. Meanwhile, the inventors also discovered that when the width of the wing 104 is designed to be between 40 mm and 50 mm, the width w1 of the wing 104 on both sides is sufficient to overlap each other to 100% cover the crotch of the underwear in a self-enclosing or self-hugging manner, thus achieving the most ideal fixation. Of course, if the width w1 of the wing 104 is too large, exceeding the width of the crotch of the underwear, it unnecessarily increases the material cost and processing difficulty of the wing 104, and also increases the possibility of accidental adhesion between the adhesive backing 105 on both sides of the wing 104. This increases the likelihood of consumer misuse and complicates the use of the wing 104. After careful research and repeated experiments, the inventors confirmed that it is satisfactory to design the width w1 of the wing 104 in the lateral direction T to be in the range of 25 mm to 70 mm, preferably in the range of 35 mm to 50 mm.
[0084] Furthermore, as shown in Figures 3 and 3A, the wing 104 has a widened portion 104B in a generally centrally located region along its width in the lateral direction T. This widened portion 104B has the largest length dimension d2 in the longitudinal direction L of the entire wing 104. Here, the length dimension d2 of the widened portion 104B in the longitudinal direction L is designed to be no greater than 150 mm, preferably in the range of 50 mm to 80 mm. The widened portion 104B and the narrowed portion 104A are connected by a gradually widening smooth curve 1041, and the top portion 104C and the widened portion 104B are connected by a gradually narrowing arc curve 1043. Here, the smooth curve 1041 and the arc curve 1043 converge at the apex 1042 of the widened portion 104B with the largest length dimension d2, thereby giving the wing 104 a generally "mushroom head" shape design, which is believed to provide consumers with a pleasant sensory experience. At the same time, when the adhesive 105 is applied to the vicinity of the widened portion 104B in the wing 104, this design allows the consumer to intuitively use the widened portion 104B as a grip when peeling the adhesive 105 from the wing 104 of the consumer's underwear, which in turn makes it easy and intuitive for the consumer to peel the adhesive 105 from the wing 104 of the underwear.
[0085] The inventors of this invention discovered that the length dimension d2 of the widened portion 104B defines the maximum length and approximate position for arranging the adhesive backing 105, as well as the length for fitting against the crotch length of the consumer's underwear. Therefore, to ensure that the wing 104 has a fitting area sufficient to cover most of the crotch length of the underwear and ensure fixation, the length dimension d2 of the widened portion 104B is not less than 80 mm, preferably not less than 60 mm. Of course, if the length dimension d2 of the widened portion 104B is too large, exceeding the width of the crotch of the underwear, it unnecessarily increases the material cost and processing difficulty of the wing 104, and increases the possibility of curling or self-adhesion when the wing 104 is folded, thus complicating the use of the wing 104. After careful research and repeated experiments, the inventors confirmed that designing the length dimension d2 of the widened portion 104B along the longitudinal direction L to be no greater than 150 mm, preferably within the range of 50 mm to 80 mm, is satisfactory.
[0086] Preferably, in order to ensure that the core absorbent areas 113 in the body of the article 106 for the penetration of bodily fluids or menstrual blood, and the core absorbent areas defined by these core absorbent areas 113, are substantially aligned with the excretory opening of the consumer's body, the wings 104 are preferably positioned relative to the body of the article 106 such that the centerline of the wings 104 (which coincides with the transverse axis T1 in Figures 3 and 3A) is designed such that the distance D1 from the transverse upper edge 110A of the female absorbent article 100 is in the range of 90 mm to 210 mm, preferably in the range of 100 mm to 200 mm.
[0087] The inventors of this invention have discovered that consumers generally use the wings 104 as a reference point for placing the feminine absorbent product 100 in the crotch area of their underwear, that is, they usually place the wings 104 in the narrowest part of the crotch area of their underwear. Existing feminine absorbent products often design the wings to be located at or near the front of the absorbent product. This makes it easy for consumers to place the feminine absorbent product too far back inside their underwear. As a result, the openings for receiving large amounts of bodily fluids or menstrual blood in a short period of time, as well as the core absorbent areas 113 defined by these core absorbent areas, are not located aligned or substantially aligned with the excretory openings of the consumer's body, thus causing menstrual blood to leak sideways or forward at the front of the absorbent product.
[0088] With the help of the "foolproof" design shown in Figures 3 and 3A, in which the protective wings 104 are placed at a distance D1 from the lateral edge 110A, consumers can directly and accurately place the feminine absorbent product 100 in the underwear in the correct back-to-back direction without extensive usage experience or high attention. The consumer's discharge opening is located in the area covered by the core absorbent area 113 for menstrual blood to seep down, thereby significantly reducing the possibility or probability of menstrual blood leaking to the side or front of the absorbent product.
[0089] Figures 4 and 4A show another embodiment of the invention, in which the same components are indicated by the same reference numerals.
[0090] The main difference between the female absorbent article 100 in Figures 4 and 4A and the embodiments shown in Figures 3 and 3A lies in the shape and size design of the protective wing 104 itself. Specifically, the outer contour design of the protective wing 104 in Figures 4 and 4A is changed from a "mushroom" shape in Figures 3 and 3A to a "petal" shape in Figures 4 and 4A. For this reason, the included angle α formed by the two sides of the V-shaped opening of the protective wing 104 in Figures 4 and 4A is larger than that in Figures 3 and 3A, and this included angle α is in the range of 30 degrees to 45 degrees. At the same time, the width w1 of the protective wing 104 in the lateral direction T is designed to be in the range of 50 mm to 80 mm, preferably 65 mm. Furthermore, the maximum length dimension d2 of the protective wing 104 in the longitudinal direction L is also increased, and this length dimension d2 is approximately in the range of 70 mm to 80 mm.
[0091] Figure 5 shows a usage diagram of the embodiments in Figures 4 and 4A, where the width w1 of the wing 104 in the lateral direction T is designed to be in the range of 50 mm to 80 mm, which makes the wings 104 located on both sides of the main body 106 of the product overlap each other to 100% cover the crotch of the underwear in a self-encircling or self-hugging manner, thus achieving the most ideal fixation.
[0092] The method of using the female absorbent article 100 of the present invention will now be described with reference to Figures 6 and 7.
[0093] Figure 6 shows a pair of underwear to which a female absorbent article 100 is to be attached, wherein the underwear has a front piece 11 corresponding to the consumer’s lower abdomen and a back piece 12 corresponding to the consumer’s buttocks and a crotch area 13 located between the front piece 11 and the back piece 12, wherein the crotch area 13 has a minimum width K1, for example, in the range of 35 mm to 75 mm.
[0094] When using the feminine absorbent article 100 according to the present invention, first unfold the wrapped and folded feminine absorbent article 100 into a long strip shape, then tear off the release paper used to prevent the adhesive 105 from sticking, and place the protective wings 104 located on both sides of the article body 106 at the narrowest width K1 of the crotch area 13, for example, within the range of 35 mm to 75 mm. Then, fold the protective wings 104 on both sides towards the crotch area 13 along the narrowing portion 104A of the protective wings 104 until the adhesive 105 in the protective wings 104 is reliably attached to the crotch area 13. Based on the above description, the above-described operation of fixing the feminine absorbent article 100 according to the present invention is simple and less prone to the "curling" or "insecure fixing" situations of the prior art. At the same time, due to the position design of the protective wings 104, the consumer's excretory opening is located in the area covered by the core absorbent area 113 of the fixed feminine absorbent article 100, which improves the comfort and leak-proofness of the product during use.
[0095] Consumer tests used to measure perceived overall preference and stickiness
[0096] To understand consumers' overall preferences for different wing designs on feminine absorbent products ("samples including the feminine absorbent product 100 of the present invention"), a panel of 30 female participants (divided into two groups based on age: one aged 18 to 24, and the other aged 25 to 35) who had menstruated in the past six months or had some experience using feminine absorbent products were recruited. Samples of feminine absorbent products with different wing designs were shown to these participants. They were asked to rate the samples on a scale of 1-10 (a "1" meant extremely disliked, a "6" meant acceptable, and a "10" meant extremely liked). The average overall preference rating and purchase intention for each sample were then calculated and reported as standard deviation. Next, the participants were asked to attach the provided samples to the crotch of underwear under simulated real-world usage conditions to evaluate the ease of folding and attaching the wings.
[0097] The test results show that more than 80% of women prefer the product design of the absorbent article 100 with "mushroom-shaped" and "petal-shaped" wings 104 having narrowed and widened portions as shown in the embodiments of Figures 3 and 3A and Figures 4 and 4A of the present invention, and evaluate that such wings 104 are more user-friendly, easier to attach, and easier to fold.
[0098] Hereinafter, embodiments of the present invention have been illustrated and described, but those skilled in the art should understand that various modifications, omissions, and additions can be made without departing from the spirit and scope of the invention. It should not be understood as limited to the specific embodiments described herein, but encompasses all possible embodiments embodied within the scope and equivalents of the features described in the appended claims.
[0099] The dimensions and values disclosed herein should not be construed as strictly limited to the precise numerical values stated. Rather, unless otherwise specified, each such dimension is intended to represent the value and a functionally equivalent range around that value. For example, a dimension disclosed as “40 mm” is intended to represent “approximately 40 mm”.
[0100] All documents referenced in the “Detailed Description” section are incorporated herein by reference in the relevant sections; any reference to any document should not be construed as an admission that it is prior art concerning the invention. In the event of any conflict between the meaning or definition of any term in this written document and any meaning or definition of a term in the incorporated documents, the meaning or definition assigned to the term in this written document shall prevail.
[0101] While specific embodiments of the invention have been shown and described, it will be apparent to those skilled in the art that many other changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the appended claims are intended to cover all such changes and modifications within the scope of the invention.
[0102] When describing elements of the present invention or preferred embodiments thereof, the articles “a,” “an,” “the,” and “the” are intended to indicate the presence of at least one element. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that additional elements may be present in addition to those listed. Many modifications and variations can be made to the invention without departing from its spirit and scope. Therefore, the above embodiments are not intended to limit the scope of the invention.
Claims
1. A female absorbent product, characterized in that, include: a. The longitudinal axis (L1) extending in the longitudinal direction and the transverse axis (T1) extending in the transverse direction; b. A front portion (100A), a rear portion (100C), and a middle portion (100B) extending between the front portion (100A) and the rear portion (100C); c. A top film layer (101), a bottom film layer (102), and an absorbent core (103) positioned between the top film layer (101) and the bottom film layer (102); d. The main body of the product (106) is arranged symmetrically about the longitudinal axis (L1) and the transverse axis (T1); e. A pair of protective wings (104), wherein the pair of protective wings (104) protrude outwardly from opposite sides of the main body of the article (106) in the lateral direction (T), and comprises: - A narrow section (104A) located between the main body (106) and the protective wing (104) and arranged in the longitudinal direction, wherein the narrow section (104A) has a length (d1) in the longitudinal direction (L) ranging from 40 mm to 70 mm. - The base end portion (104D) adjacent to the narrowing portion (104A) and located on the inner side in the lateral direction (T) and the top end portion (104C) located on the outermost side, wherein the width (w1) of the protective wing (104) in the range of 25 mm to 70 mm is defined between the top end portion (104C) and the narrowing portion (104A); and - A widening portion (104B) located between the narrowing portion and the top portion, wherein the widening portion (104B) has a maximum length dimension (d2) of the wing (104) in the longitudinal direction, wherein the maximum length dimension (d2) is in the range of 50 mm to 150 mm.
2. The female absorbent article as described in claim 1, characterized in that, The protective wing (104) has a centerline (T1) extending in the lateral direction, wherein the centerline is arranged at a distance of 90 mm to 210 mm from the lateral upper edge (110A) of the female absorbent article.
3. The female absorbent article as described in claim 1, characterized in that, The narrow portion (104A) of the wing (104) defines a generally V-shaped opening that gradually widens toward the transverse upper edge (110A) between the longitudinal side edge (111A) of the absorbent article and the narrow portion (104A) of the wing (104), wherein the V-shaped opening has an included angle (a) between 10 degrees and 80 degrees.
4. The female absorbent article as described in claim 1, characterized in that, The main body of the article is generally in the shape of a racetrack with a length (C1) in the range of 150 to 400 mm and a width (W1) in the range of 50 to 80 mm.
5. The female absorbent article as described in any one of claims 1 to 4, characterized in that, The narrowing portion has a longitudinal length of 45 mm to 50 mm and the wing (104) has a transverse width of 35 mm to 50 mm, wherein the widening portion (104B) is generally centrally located within the wing (104) and has a length of 40 mm to 80 mm.
6. The female absorbent article as described in claim 5, characterized in that, The widened portion (104B) and the narrowed portion (104A) have a gradually widening smooth curve and the top portion has a gradually narrowing arc curve, so that the protective wing (104) is generally mushroom-shaped.
7. The female absorbent article as described in any one of claims 1 to 4, characterized in that, The wing (104) has a width in the lateral direction ranging from 60 mm to 70 mm and the widened portion has a length ranging from 70 mm to 80 mm.
8. The female absorbent article as described in claim 7, characterized in that, The protective wing (104) is generally petal-shaped.
9. The female absorbent article as described in claim 1, characterized in that, The main body of the article has a core absorption region (113) aligned with the longitudinal axis and the transverse axis, wherein the core absorption region (113) is used to transfer body effluent from the top sheet layer downward along the depth direction.
10. The female absorbent article as described in claim 9, characterized in that, The main body of the product also has a lateral flow deflector (114) arranged around the core absorption area, which is in a closed or semi-closed shape, wherein the lateral flow deflector is selected from any of the following: embossing, groove, perforation, channel.