WO2022096037A1

WO2022096037A1 - Waterproof gusset fabric that absorbs bodily fluids, for underwear and other items

Info

Publication number: WO2022096037A1
Application number: PCT/CO2021/000009
Authority: WO
Inventors: Diana Milena Ibañez Aguilar; Myriam IBARRA CASTILLO
Original assignee: Creaciones Selene S.A.S.
Priority date: 2020-11-07
Filing date: 2021-09-20
Publication date: 2022-05-12

Abstract

The present invention relates to a high-quality, lightweight waterproof gusset fabric that absorbs bodily fluids, which absorbs and repels all types of fluids and is suitable for joining to form part of underwear, pads and panty liners. The fabric comprises a hydrophilic layer of fabric and two hydrophobic layers facing the hydrophilic layer. The waterproof fabric comprises the joining of three special fabrics that prevent the transmission of fluid to the underwear, a hydrophobic layer that stops the passage of the liquid, and a layer that absorbs and retains the liquid, the three layers forming a uniform gusset.

Description

WATERPROOF REINFORCEMENT FABRIC AND ABSORBENT OF BODY FLUIDS FOR UNDERWEAR AND OTHERS

DESCRIPTION

OBJECT OF THE INVENTION (BRIEF DESCRIPTION)

The present invention relates to a good quality, lightweight, waterproof and absorbent fabric that absorbs and repels all types of fluids, and that is suitable for joining to form part of protective garments that absorb body fluids. For example, underwear associated with menstruation and incontinence, the present invention provides essential characteristics of novelty and considerable advantages with respect to the articles known and used for the same purposes in the current state of the art.

More particularly, the invention develops a waterproof and absorbent fabric that is formed from the fusion of three resistant components that prevent the passage of body fluids towards outer clothing, and at the same time, due to their natural origin, allow air to flow producing a quick drying, experiencing that the skin does not feel wet, giving comfort and safety to the person.

This new waterproof and absorbent fabric substantially prevents leakage of vaginal bleeding in the menstrual cycle and the involuntary emission of urine in urinary incontinence with respect to similar articles known in the state of the art.

TECHNOLOGICAL SECTOR OF THE INVENTION

The field of application of the invention is included within the industrial sector dedicated to the manufacture of underwear for women and men. The field also includes other means of controlling the flow of fluids during menstruation and the absorption and control of fluids and solid waste from the body under incontinent or other conditions.

PRIOR STATE OF THE ART OR BACKGROUND OF THE INVENTION

Menstruation, urinary incontinence, excessive perspiration and female discharge are situations that make intimate hygiene especially important, since the genital area is exposed to almost permanent contact with moisture caused by body secretions.

Menstruation, or period, is normal vaginal bleeding that occurs as part of a woman's monthly cycle. Every month, your body prepares for a possible pregnancy. If this does not happen, the uterus sheds its lining. This is menstrual blood, which leaves the body through the vagina. This blood is part blood and part tissue from inside the uterus. In addition to bleeding, women may experience: abdominal or pelvic pain or cramping, lower back pain, swollen and sore breasts, cravings for a particular food, irritability and mood swings, headache, and tiredness.

Urinary incontinence is a condition that affects both men and women, it is a very common condition that involves the involuntary loss of urine during physical activity, when coughing, sneezing or laughing. Despite being very common, people who suffer from urinary incontinence are often embarrassed to be seen using or buying bulky disposable products available on the market.

Excessive perspiration in the genital area including the crotch, groin and buttocks is an extremely uncomfortable pathology, commonly triggered by stress, anxiety and hormonal disorders and affects both men and women; In addition to the annoying humidity, the Excessive genital perspiration can lead to other associated problems such as infections or irritations and finally the female secretion is produced in the vaginal canal and performs self-purification, moisturizing and lubricating functions. Normal discharge is odorless and is usually milky white or thin and clear.

From these anatomophysiological considerations, many varieties of feminine sanitary products have emerged throughout history, designed to absorb body fluids, for example: in the 1940s, menstrual sponges entered the market, which consisted of a sponge covered With a cloth with holes that was inserted into the vagina without any string for its extraction, this sponge absorbed a large amount of flow. This method provided the woman with some inconvenience by having to insert her fingers for extraction, and could also cause small scratches in the vaginal wall.

In the 1930s, menstrual cups were produced industrially, although rudimentary cups had been circulating since 1867, which was interrupted in 1963 for not being profitable, for lack of latex and because they were not commercially successful due to the opinion of women: they seemed that it was too big, rigid and heavy, in addition to the cultural issue that involves the manipulation of the genitals and vaginal secretions. Currently, the menstrual cup is a medical silicone container that is completely hypoallergenic, adapting to the vaginal walls at all times in order to collect the entire menstrual flow.

Also in 1930, tampons appeared to give women greater freedom when it comes to sports or some recreational activity, these are introduced through the vagina to absorb almost all of the menstrual flow, this unit was disposable and was extracted by means of Made of a cord, the tampon has a tube shape with a compressed core covered by a mesh. During its beginnings, this tool caused toxic shock syndrome, which consisted of an infection that in rare cases was fatal for the user, the risk continues to be mentioned today but no direct relationship is found with its use.

In 1895 the first feminine pads were released, these are absorbent pads which to this day are still disposable, and include ultra-absorbent and biodegradable gel with a small strip of glue to be able to be fixed inside women's underwear, this tool promises to balance the PH levels in the intimate area, there is currently a wide variety of feminine pads that are suitable for movement and different women's underwear.

At the end of the 20th century, menstrual panties appeared, women's underwear that tried to replace tampons during which they were used in part of the menstrual cycle since these did not work in all stages of it, this can also be used for small urine losses and odor retention, these tights could be reused after their respective cleaning.

However, many products are not completely suitable, allowing menstrual secretions to seep into women's underwear and outer clothing, often leaving stubborn stains on clothes, especially if they are allowed to dry before washing.

Some women are able to immediately dispose of stained undergarments, but many attempt to remove stains using a variety of cleaners and techniques. Without deep cleaning, stains can become permanent, which can be a source of embarrassment if other people see the stains. When a leak extends to a woman's outer clothing, it may require the involvement of a cleaning service, which is even more embarrassing.

Although leakage can occur at any time, women tend to experience it more frequently in the following two cases: the first day of the menstrual cycle, when they are not yet using proper sanitary products and when they lie down, usually during sleep. However, various vaginal discharges do occur with the potential to stain clothing.

On the other hand, women's knowledge about the components and waste produced by feminine intimate hygiene products is generally scarce and therefore they are not able to be clear about the magnitude of the damage and the environmental impact when using these, in addition to not giving opportunity to new products.

Various integrated, removable, disposable or reusable absorbent articles used in undergarments are known throughout history. Some undergarments have been designed to address the problem of menstrual bleeding and staining. However, such products are not adequately protective and have no barrier properties (offering only absorbent characteristics), or alternatively, are constructed with barrier fabrics that are aesthetically unsightly and uncomfortable. The evolution of women's clothing during their menstrual cycles has been slow for years. All existing means of absorbing menstrual excretion today have disadvantages.

Accordingly, conventional absorbent products have attempted for many years to achieve underwear-like feel after absorption of excreta, such as menstrual blood. While various combinations of materials and layers for absorbent articles and protective undergarments have been known to develop throughout history, as will become apparent below, improvements are desirable to provide a suitable highly functional waterproof body fluid absorbent and repellent product. to treat stress incontinence, menstruation while being discreet, comfortable and desirable to wear on a daily basis.

Records in the known art are described in the following patents:

CA Patent 2247839 relates to an absorbent article such as a pad having a liquid-permeable body-facing side and a waterproof side that faces the garment and an absorbent core interposed between the side that faces the body and the side that faces the garment, just like patent US-2019110937 that refers to a pad that is washable and reusable that comprises a top layer configured to lie against the wearer's skin, an inner layer, and a moisture absorbing layer interposed between the top and bottom layers and ends with a raised liner layer positioned on the bottom layer configured to come into contact with the wearer's undergarment, the raised liner layer being configured to retain a water-soluble adhesive thereon and to adhere the incontinence pad to the undergarment.

Patent CA 2152135 also refers to an absorbent pad comprising a first layer impermeable to fluids and permeable to gases and a second moisture-absorbing layer arranged on said first layer and means for fixing the first layer to the second layer, by Like patent ES 2293362, it is made up of a cover sheet and a back sheet and an absorbent article between the two, wings to attach to the pantyhose and an adhesive layer to attach to the pantyhose.

Likewise, patent US 4560381 refers to a protective panty for menstruation that comprises a thick layer of disposable absorbent material with a depression in the middle to house a thin pad of disposable absorbent material operatively arranged longitudinally in the crotch area of said panty and extending at least partially upwards in the front and back areas, said depression being meant to be sized to receive said feminine pad therein for placement during use. Patent CA 2428281 also refers to a reusable and washable protective pantyhose for use by an incontinent person, said panty comprises an outer elastic fabric cut and sewn and made of Jacquard, lace or smooth nylon-spandex, or cotton lycra and that defines a waist opening and leg openings, said panty defining a front panel and a back panel, at the crotch having a waterproof, non-stretch, non-breathable polyester panel permanently secured over an inner surface of said pantyhose and encompassing said crotch region that can receive a removable, reusable and washable pantyhose protection pad can be removably secured to said waterproof polyester panel, and patent ES 2259078 describes an absorbent product reinforcement for the crotch area of a pantyhose made from consists of a dry-formed fiber mat that also extends over the rear portion of the pantyhose

The above patents describe absorbent articles such as sanitary napkins, panty liners, disposable undergarments and adult incontinence pads, having a liquid-permeable, body-facing side that can be made of: woven or non-woven fabric woven from natural fibers or synthetic fibers, bamboo fibers and organic cotton fibers, or thermoplastic synthetic resin film provided with numerous openings; or a porous synthetic resin foam sheet; or a meshed synthetic resin foam sheet; or a meshed thermoplastic synthetic resin film; or a sheet of thermoplastic synthetic resin mesh, and they have another side facing the garment, in charge of preventing absorbed fluids from coming out and the suitable materials of this layer can be thermoplastic synthetic resin film or low density polyethylene film; in the center it has an absorbent core interposed between the side facing the body and the side facing the garment, made of fine ground wood pulp called air felt, or wrinkled cellulose wadding, or melt-blown polymers or in chemically stiffened, deformed or bridged cellulose fibers or in absorbent synthetic resin foam or in tissue paper or in absorbent gelling materials or in suitable combinations of these materials.

Absorbent personal care products, such as baby diapers, adult incontinence products, and feminine care products, may include liquid acquisition and/or distribution layers that serve to rapidly acquire and then distribute liquid acquired to a storage core for retention. In order to achieve rapid acquisition and distribution, these layers are often made of non-woven fabrics whose function is to increase the absorption of liquids within the layer and facilitate the distribution of liquid through the layer and ultimately to another layer. undergarments that themselves absorb, collect and block menstrual excretion, for example, numerous patents have described this situation, such as patent TWM412753U, which refers to an improved structure for menstrual pantyhose, which mainly includes: a panty body , which is used to carry on the part of the body that needs to be protected; a water-absorbent layer, which is placed around the body of the pantyhose to absorb liquid; thus blocking the effect of the liquid. The improved structure of the pantyhose described has at least one water-absorbent layer and one impermeable layer. Now let's see, patent KR20190094599A refers to a pantyhose that has a two-layer structure at the front and back and has a bridge part in the user's perineum area that connects the front with the back. four-layer structure, the front and back of the panty are made from 95% GOTS certified organic cotton and 5% spandex, and the bridge unit is made up of a primary absorbent layer that directly contacts the back user's perineal; a secondary absorbent layer located at the bottom of the primary absorbent layer; a moisture permeable waterproof layer located at the bottom of the secondary absorbent layer; and an outer layer that is at the bottom of the moisture permeable waterproof layer; where the primary absorbent layer and secondary absorbent layer are 70% bamboo fibers and 30% cotton fibers and the moisture permeable waterproof layer is a polyurethane laminate material, and the outer layer is 95% GOTS certified organic cotton and 5 % elastane. While patent CA2812772A1 comprises a washable undergarment made of at least one layer of moisture-absorbing fabric that has a first side in contact with the body and a second side, and at least one layer of moisture-repellent fabric that has a first side disposed adjacent the second side of the absorbent layer and a second side; and a leg cuff comprising a portion of the al minus one layer of moisture-wicking fabric, one seam, and one elongated elastic member, in the crotch area has a lining or gusset that has 1-4 moisture-absorbing layers and a shell that has 1-2 moisture-wicking layers of humidity, which is fixed to the undergarment by means of sewing of non-absorbent thread; and patent ES2135436 refers to an absorbent panty intended to be used by women during the menstrual period that is provided with an outer layer made of soft material impermeable to menstruation, which is soft to the touch, in the shape of panties made according to with a plurality of sizes and models, an inner layer made of a soft, menstruation-permeable material that does not stick to menstruation and is soft to the touch, in the same shape as the outer layer, and an absorbent element coupled between the outer and inner layer, said absorbent element has a relatively high absorption capacity and retains menstruation with a minimum expansion in its thickness, located in the crotch area and longitudinally from the top of the private parts of the wearer to the along the inside of the leg openings to the top back edge of the pantyhose in a thin, flat, non-bulky fashion.

On the other hand, patent ES 1192283U describes a reusable garment for feminine intimate hygiene that is characterized by being waterproof, absorbent, breathable and antibacterial, which is made up of 3 layers of fabric that combined offer such properties and has a closure system and opening to facilitate changing fabrics, or patent AU 2014218471 which deals with a protective insert that can be attached to a garment comprising a first operatively internal layer comprising a moisture-absorbing fiber; a second intermediate layer of a moisture absorbent material; and a third operatively outer layer of a substantially moisture-resistant, low-breathable material to protect the outer garment in the event of an inadvertent bodily discharge or fluid leak. The first layer is made up of a natural fiber that is derived from a natural fiber or a synthetic fiber, the component fabric of this first layer is compact, crushed or reconstituted and is a protein compound keratinous such as wool, which is hydrophilic or contains a hydrophilic compound, the middle layer is composed of a quick-drying absorbent material such as hemp, bamboo, or cotton, and the third operatively outer layer includes a film laminate, which makes it impenetrable moisture like the fabric known commercially as PUL.

Now let's see the patent ES2623095 that defines an undergarment that in the crotch area comprises a leak-proof multilayer pad attached to the undergarment by sewing, the multilayer pad contains a waterproof layer of breathable urethane or wax polymer, an absorbent layer of cotton or foam moisture located on top, a moisture-repellent layer having a network hydrophilic gradient, consisting of polyethylene oxide, polyvinyl alcohol, polyacrylamide, polyacrylic acid, polyvinylpyrrolidone, hydrophilic silicones and hydrophilic polyurethanes and is located on the layer moisture absorbent AND an antimicrobial layer on top of the moisture repellent layer, another patent is US-6616649 which is a combination of underwear and a disposable towel, where the underwear includes an inner lining and serves to adhere the sanitary towel over at least a substantial portion of the crotch portion. In the same sense, patent CN1285728, which comprises a disposable absorbent article and an undergarment to hold the disposable absorbent article, the system is characterized in that the undergarment is capable of keeping the absorbent article in intimate contact with the body; the system comprises a liquid-permeable side, a liquid-impervious side opposite the liquid-permeable side, and an absorbent member positioned between said liquid-permeable side and the liquid-impervious side wherein said liquid-permeable side and said liquid-impervious side are configured, as a unitary structure.

Chinese Patent No. CN204050054U describes a menstrual period pantyhose composed of a surface layer, a middle absorbent layer and a bottom leak prevention layer, and an elastic waist portion. The surface layer is made of hydrophilic non-woven fabric, the absorption layer The middle is formed so that the nonwoven fabric with dispersed SAP particles is wrapped with upper layer dust-free paper and lower layer dust-free paper, flow guide grooves are formed in the middle absorption layer, the Bottom leak prevention layer is PE breathable film, and the elastic waist part is formed by gluing a front elastic waist and a rear elastic waist in hot melt mode.

United States Patent US 20090246447 describes absorbent structures with webs of nonwoven meltblown lyocell fibers having excellent liquid distribution properties. The absorbent structures comprise at least two webs of nonwoven meltblown lyocell fibers with superabsorbent polymer between the two webs. Methods for making the structures are also described. The structures are particularly useful for use in disposable hygienic products, or the Spanish patent ES 2122074, describes a disposable panty liner provided with an absorbent face facing the body made of non-woven fabrics, such as rayon, and a face facing toward the garment, the body-facing side being able to further include an outer coating. The outermost surface of the body-facing side features an aesthetically appealing design consisting of recessed areas in the shape of flowers.

Similarly, Canadian patent CA 2812772A1 describes a washable undergarment comprising: at least one layer of moisture-absorbent fabric having a first side in contact with the body and a second side, and at least one layer of moisture-repellent fabric moisture having a first side disposed adjacent to the second side of the absorbent layer and a second side; and a leg cuff comprising a portion of the at least one layer of moisture repellent fabric, a seam and an elongated elastic member, the undergarment comprising a lining or gusset having 1 to 4 moisture absorbing layers and a cover that has 1-2 moisture repellant layers. The Republic of Korea utility model patent KR20190094599A, which refers to a menstrual panty developed using bamboo fibers that have excellent absorbency, quick-drying, deodorization and antibacterial function, the menstrual panty is composed as follows : a primary absorbent layer directly in contact with the perineal portion of the user made of 70% bamboo fiber and 30% cotton fiber; A secondary absorbent layer placed under the primary absorbent layer with the same characteristics as the primary; A moisture permeable impermeable layer disposed below the secondary absorbent layer composed of a polyurethane laminate material; and the outer layer can be 95% cotton and 5% spandex material certified by GOTS, we also find the GB2282054 patent in the same sense.

Disposable menstrual panties are also known. For example, PCT Application WO 95/06451 published in the name of Kimberly-Clark Corporation on March 9, 1995 describes a disposable menstrual panty which is said to provide backup protection against leakage by means of an absorbent/barrier composite placed in the panty crotch area. The menstrual panty disclosed therein is also provided with circumferentially oriented elastics which are said to allow the panty to conform to various body types and builds.

In addition, similar patents were found on topics such as: disposable and replaceable towel-type menstrual panty containing chitosan, menstrual panty for women, nursing panty for women, antibacterial sanitary pads for women's menstrual underwear, a kind of menstrual pant with drawstring waist that are easy to put on and take off, breathable menstrual care pantyhose and more.

Accordingly, conventional absorbent products have attempted for many years to achieve underwear-like feel after absorption of excreta, such as menstrual blood. While various material and layer combinations for absorbent articles and protective undergarments have been developed throughout history, improvements are desirable. to provide a highly functional, waterproof, body fluid absorbent and repellent product suitable for treating stress incontinence, menstruation while being discreet, comfortable and desirable to wear on a daily basis.

DESCRIPTION

The present invention discloses a new waterproof and absorbent fabric, to prevent leaks and stains on outer garments caused by body fluids, which can be used integrated into a pantyhose, boxer, or in pads.

This new waterproof and absorbent fabric is made of natural and artificial fibers, which prevent irritations, burns, infections and eliminate odors. It is also washable and reusable, breathable, decreases menstrual cramps, and has a comfortable and modern design.

The new waterproof and absorbent fabric of the present invention contains, among others: polyester and nylon fibers, which have excellent resilience (it is the ability of the fibers to recover after having suffered compression or crushing, it is associated with the wrinkle resistance of the fabrics) and cotton that, although it has low resilience, has unique properties of durability, resistance and absorption, as they are all fixed creating a single piece it has the capacity to withstand, preventing spills of the absorbed fluid, by compression or crushing because the cotton immediately absorbs the fluid and due to its natural origin, it allows air to flow, producing rapid drying. In addition, the body fluid stops in the other layer of polyamide, spandex or polyester that repel liquids and dry quickly, since they are materials that allow the passage of air, that is, They are impermeable to water but allow perspiration. DESCRIPTION OF THE FIGURES

With reference to the figures, which are examples of the invention, in order to better understand the implementation of the invention:

Figure 10A. Front and back view of a female undergarment where the invention is implemented, in an embodiment used in cases of menstruation.

Figure 10B. External view of a female undergarment, where the invention is implemented, in an embodiment used in cases of menstruation.

Figure 10C. Inside view of a female undergarment where the invention is implemented, in an embodiment used in cases of menstruation.

Figure 20A. Inside view of a female undergarment where the invention is implemented, in an embodiment used in cases of incontinence

Figure 20B External front view of a female undergarment where the invention is implemented, in an embodiment used in cases of incontinence

Figure 20C. Front and back view of a female undergarment where the invention is implemented, in an embodiment used in cases of incontinence.

Figure 30A. Exterior view of an example male undergarment for incontinence.

Figure 30B. Inside view of a male undergarment where the invention is implemented, in an embodiment used for incontinence.

Figure 30C. Front and back view of a male undergarment where the invention is implemented, in an embodiment used for incontinence. Figure 40A. Inside view of a night pad where the invention is implemented.

Figure 40B. External view of a night pad where the invention is implemented.

Figure 40C Front view of a night pad where the invention is implemented.

Figure 50A. Inside view of a day pad where the invention is implemented.

Figure 50B. External view of a day pad where the invention is implemented.

Figure 50C. Front view of a day pad where the invention is implemented.

Figure 60A. Front view of a daily protector where the invention is implemented.

Figure 60B. Rear view of a daily protector where the invention is implemented.

Figure 70. View of the three (3) layers that make up the invention.

Figure 80. View of the three (3) fabrics that make up the waterproof layer of the present invention.

DETAILED DESCRIPTION

The present disclosure consists of a new absorbent and impermeable backing fabric that provides leak resistance, fluid absorbency, and fluid barrier characteristics.

Exemplary embodiments according to the present disclosure are protective garments and articles for menstruation, urinary incontinence, excessive perspiration and female secretion. The novel waterproof and absorbent fabric comprises a fabric layer that is hydrophilic, and two layers that are hydrophobic opposite the hydrophilic surface. In the description of the exemplary embodiments, the component used in each layer is identified below.

The present women's menstruation underwear provides effective leak resistance and/or acts as a fluid barrier against blood spillage, while remaining breathable and elastic.

FIG 10A shows a front and back view of a pantyhose; FIG 10B a top front view of an open pantyhose and FIG 10C an internal view of an open pantyhose; These figures show an exemplary embodiment of a Panty for the Menstrual Period according to the present description, which will be referred to hereinafter for ease of illustration as embodiment 1.

Embodiment 1 comprises a part (10) called front center, a part (11) called front side, a part (12) called back side, a part (13) called reinforcement, a part (14) called front, a part ( 15) called butterfly and a part (16) called rear. The part (13) contains a front and a rear reinforcement (13a) and (13e) respectively, which go up to the height of the second hip, (13b) and (13d) that define the front cavity and the rear cavity respectively and serve to fix the pad, and the butterfly reinforcement (13c.) the reinforcement part (13) is joined to embodiment 1 by means of sewing in nylon thread and nylon threads. Portion 13 comprises a functional material 100, in accordance with the present invention, as will be described in more detail below. Optionally, the shape and position of the reinforcement piece and the seams may vary according to the aesthetic design and functionality of each embodiment, such as in FIG 20A internal view of an open pantyhose, FIG 20B top front view of a pantyhose open and FIG 20C front and back view of a pantyhose, showing an example embodiment of a Classic Female Urinary Incontinence Panty according to the present description, which will be referred to hereinafter for ease of illustration as embodiment 2.

Embodiment 2 comprises a part (21) called rear, a part (22) called front center control, a part (23) called front, a part (24) called reinforcement and a part (25) called butterfly. The portion 24 contains a butterfly gusset 24a and a front gusset 24b, the gusset portion 24 is attached to embodiment 2 by stitching in nylon thread and nylon yarns.

FIG 30A shows the top front view of an open boxer brief, FIG 30B shows the inside view of an open boxer brief, and FIG 30C shows the front and back views of a boxer brief, showing an example embodiment of an incontinence boxer brief. male urinary according to the present description, which will be referred to hereinafter for ease of illustration as embodiment 3.

Embodiment 3 comprises a front and back part (31) and (34) respectively, a part (32) called fly, a part (33) called crotch and a part (35) called gusset. The part (35) contains a fly gusset (35a) and a crotch gusset (35b); part (35) is attached to embodiment 3 by means of stitching in nylon thread and nylon yarns.

In other embodiments of the present invention, FIG 40A shows a front top view of an open pad, FIG 40B shows the internal view of an open pad and FIG 40C shows a closed pad view; these figures show a night pad according to the present description, which will be referred to hereinafter for ease of illustration as embodiment 4.

Embodiment 4 comprises a part (T2) called base, made of printed anti-fluid fabric, a part (T3) called Holding Wings, made of printed anti-fluid fabric, includes some fasteners (X1) for the wings and a part (T1 ) called folding structure of 38 x 24 cm made of 100% cotton fabric, and a part (T4) called reinforcement, part (T4) is joined to embodiment 4 by sewing nylon thread and nylon threads.

FIG 50A for its part shows the top front view of an open pad, FIG 50B shows the internal view of an open pad, while FIG 50C shows the view of a closed pad, these figures show a day pad according to the present description, which will be referred to hereinafter for ease of illustration as embodiment 5.

Embodiment 5 comprises a part (T2) called a base made of printed anti-fluid fabric, a part (T3) called Fastening Wings, made of printed anti-fluid fabric, includes some fasteners (X1) for the wings and a part ( T1) called a folding structure of 26 x 24 cm made of 100% cotton fabric, and a part (T5) called reinforcement, part T5 is joined to embodiment 5 by means of sewing in nylon thread and nylon threads.

FIG 60A shows the front top view of a protector and FIG 60B shows the internal view of a protector, they show a daily protector according to the present description, which will be referred to hereinafter for ease of illustration as embodiment 6.

Embodiment 6 comprises a part (T2) called the base made of 6 x 16 cm printed anti-fluid fabric, a part (T3) called Fastening Wings, made of printed anti-fluid fabric, includes X1 fasteners for the wings and a part (T6) called reinforcement, the part T6 it is attached to embodiment 6 by stitching in nylon thread and nylon yarns.

The present invention also provides fabrics that can be used in the above and other garments, "wicking and waterproof backing fabric" as used herein refers to multiple layers of fabrics. The present construction of fabrics provide unique advantages for the, fluid retention, fluid absorbency and aesthetics of the garment (look, feel, softness and stretch), the use of reinforcement fabric in previous garments are intended to replace hygiene products such as sanitary napkins and tampons, during women's menstruation, urinary incontinence, excessive perspiration and female discharge.

FIG 70 shows the layers that make up the reinforcement fabric (100), which can be used in any female and male underwear or in parts of them, including any of the previous embodiments, FIG 70 comprises three layers: a first layer (20 ) having a body contact surface, and another surface, a second absorbent layer (30); and a third impervious, fluid-repellent, or fluid-proof layer (40) having a first surface disposed adjacent to the second surface of the absorbent layer (30) and a second surface adjacent to the decorative fabric of the garment, pad, or protective.

The layer (20) includes Chalis or viscose fabric, made of 100% rayon fibers manufactured from polymers of natural origin, mainly wood pulp, the layer (20) consists of a high absorption index, capable of allowing the fluid transmission to the absorbent layer (30) and therefore remain dry even when fluids penetrate its surface. The absorbent layer (30) includes 100% cotton baize fabric, the waterproof layer (40) consists of the fusion of 3 fabrics that prevent the transmission of fluid through the layer (40) towards the realization. Layer 40 exhibits resistance to hydrostatic pressure, allowing more freedom to create a desirable aesthetic when bonding with undergarments. The layer (40) FIG 80, includes a sheet B1 composed of lycra tricot interlining, made of 100% polyester synthetic fiber, a sheet (B2) of hypoallergenic waterproof cerro sport fabric made of 100% synthetic fiber, which repels liquids and allows perspiration and a sheet (B3) of 90-gram interlining made of 100% polyester.

Fabrics and composite materials thereof facilitate the construction of many garments, particularly protective and aesthetically pleasing women's undergarments. Accordingly, the above materials and methods of construction can be applied to styles that characterize regular non-protective undergarments, such as briefs, thongs, boy's shorts, and the like. Existing "period" underwear is designed in such a way that the gusset is regular sized or the gusset extends to the back waist in a way that is unattractive. The waterproof and wicking backing fabric discussed above have many other uses including, but not limited to, regular men's and women's clothing, men's functional clothing, industrial fabrics, sportswear, and protective clothing. Garment and fabric constructions described herein are designed for use in protective intimate apparel to absorb and/or contain bodily discharges and to prevent staining, without adversely affecting the look, feel, and breathability for use in apparel intimate, and other clothing. The garments and construction methods described herein can be used for a variety of garments including, but not limited to, underwear, bras, swimwear, and outerwear. While one use for this unique combination of materials is for protective undergarments during menstruation, the present concept can also be used for undergarments and outerwear to prevent leaks and stains during light incontinence, pregnancy, postpartum, menopause and postpartum episodes, menopause. Capacities can be used separately in pad or panty liners or combined in underwear, bras, outerwear, swimwear and the like. The potential absorption capabilities can be used specifically in, but not limited to, outerwear and nightwear for menopausal women. In addition, pregnant and postpartum women They often experience unexpected nursing, leading to uncomfortable and embarrassing leaks in bras and/or outerwear. The use of this concept for the construction of nursing bras can alleviate this inconvenience. Pregnant and postpartum women also experience heavy vaginal bleeding during pregnancy and after delivery, creating a great need to eliminate leaks.

Table A below summarizes the type of fabric used, its function, the type of fabric it is made of, its composition and basic characteristics of fusing, resilience, elongation, elastic recovery, abrasion resistance, % of recovery / absorption and resistance to sunlight.

Claims

CLAIMS A light and good quality waterproof and body fluid absorbent reinforcement fabric (100) that absorbs and repels all types of fluids, and that is suitable for joining to form part of underwear, pads and protectors, characterized in that it is constituted by a fabric layer (20) having a body-contacting surface, and another surface receiving another absorbent fabric layer (30); which in turn receives a third layer of waterproof, fluid-repellent or fluid-proof fabric (40), having a first surface disposed adjacent to the second surface of the absorbent layer (30) and a second surface adjacent to the outer surface undergarment, pad or protector. A waterproof and body fluid-absorbent reinforcement fabric (100) according to claim 1, in which the waterproof fabric layer (40) comprises a sheet (B1) composed of lycra tricot interlining, made of 100% polyester synthetic fiber, a sheet (B2) of hypoallergenic waterproof cerro sport fabric made of 100% synthetic fiber, which repels liquids and allows perspiration and a sheet (B3) of 90-gram interlining made of 100% polyester. A waterproof and body fluid absorbent reinforcement fabric (100) according to claim 1, wherein the seam comprises non-absorbent yarn. A body fluid absorbent and impermeable backing fabric (100) according to claim 3, wherein the yarn is a nylon yarn and nylon yarns. A waterproof and body fluid absorbent backing fabric (100) according to claim 1, wherein the combined layers have a total body fluid absorbency of about 30 ml to about 90 ml according to the embodiment.