Reusable hygiene and incontinence article

Abstract

The present invention relates generally to a reusable hygiene or incontinence article having a multi-layer structure, comprising: an inner layer comprising a liner region closest to the wearer's skin for absorbing bodily fluids from and / or delivering bodily fluids away from the wearer; an outer layer comprising a sealing portion and a side edge portion for providing a barrier for bodily fluids; an absorbent core positioned between the inner layer and the outer layer; and a fluid-tight junction connecting the inner layer, the outer layer, and optionally the absorbent core to each other along at least a portion of the perimeter of the liner region; wherein the sealing portion is composed of a textile coated with an adhesive coating material forming a continuous impermeable coating extending at least over the liner region into side edge portions, where the side edge portions extend from opposite sides outside the liner region, are folded over side edges of the inner layer and are connected to the inner layer, a fluid-tight joint is formed between the inner layer and the outer layer along a side edge of the liner region.

Description

Technical Field

[0001] The present invention relates to reusable, washable and washable sanitary or incontinence products, and more particularly to a reusable sanitary or incontinence product having a multilayer structure including a sealing portion consisting of a textile coated with an elastomer, the reusable sanitary or incontinence underwear being configured to removably receive an absorbent body, and a corresponding production method. Background Art

[0002] 200 million people worldwide are affected by incontinence, a condition in which the body cannot control the excretion function of urination or defecation, and this is likely to increase as the number of elderly people in the community increases. By 2022, the turnover of incontinence products is expected to exceed €3 billion in Europe alone.

[0003] In addition to incontinence as an actual disease or syndrome, menstruating women often need products that can absorb fluids, including blood. Feminine hygiene products are personal care products used during menstruation, vaginal discharge, and other bodily functions related to the vulva and vagina. Products used during menstruation may also be called menstrual hygiene products or sanitary products.

[0004] Most incontinence and hygiene products are disposable. Some are reusable. Reusable products must be able to be washed and dried thoroughly in a reasonable time. These criteria are often contradictory, resulting in either products that are easy to dry but do not absorb a lot of liquid, or sanitary products that take a long time to dry but have good absorption capacity. This problem can be overcome by drying in a tumble dryer. However, no commercially available hygiene products can be repeatedly washed and dried at 90°C without compromising their integrity and performance. Due to the washability from 60° to 90°, bacteria are killed, providing the advantage that antimicrobial coatings can be omitted. It should be noted that bacterial coatings worn directly on the skin or in another layer (such as underwear or padding) are controversial for environmental and health reasons. In addition, most reusable products use membranes as waterproof layers. Its disadvantages include poor breathability, short life, low heat resistance and perceptible rustling.

[0005] It is therefore an object of the present invention to alleviate the above problems. In particular, one object of the present invention is to provide a reusable hygiene or incontinence article that can be effectively repeatedly washed and dried, is comfortable, maintains discreteness (i.e., produces little noise) and maintains fluid retention properties. Another object is to keep the complexity of the article to a minimum, thereby keeping the production cost of the article to a minimum. These and other objects can be achieved by the present invention as defined by the following claims, and these and other objects will become apparent from the following description. Summary of the invention

[0006] In the first aspect, the present invention relates to a reusable hygienic or incontinence product with a multilayer structure. The product comprises an inner layer, an outer layer and an absorbent core between the inner layer and the outer layer, the inner layer comprising a gusset area closest to the wearer's skin for absorbing body fluids from the wearer, the outer layer comprising a sealing portion extending at least on the gusset area and providing a barrier for body fluids, and the absorbent core comprises one or more absorbent layers. A fluid-tight joint connects the inner layer, the outer layer and the optional absorbent core to each other along the periphery of the gusset area. The sealing portion is composed of a textile coated with an adhesive coating material, and the adhesive coating material has sealing properties, such as an adhesive or a sealant. Preferably, a self-adhesive elastomer, particularly a silicone resin. The elastomer used is, for example, a thermoplastic elastomer that becomes soft or liquid when heated and hardens when cooled. When heated, the elastomer can be applied in a point, line or region, and penetrates into the fabric of the fabric layer so that after the elastomer is cured, there is a firm and permanent combination with the fabric layer. Other coatings that can be used include rubber, polyvinyl chloride, polyurethane, fluoropolymers and / or wax. The coating is preferably continuous at least in the lining area. However, it can also be applied over the entire surface or consist of a plurality of partially sealed surfaces.

[0007] In one embodiment, the outer layer comprises side edge portions extending from opposite sides outside the gusset region, which are folded over the side edges of the inner layer and connected to the inner layer. This means that the opposite side edge portions of the outer layer (left and right portions from the wearer's perspective) are folded over the side edges of the inner layer and connected thereto. The junction connecting the folded portion to the inner layer is preferably the same junction as the junction connecting the outer layer to the inner layer described above, but may also be a separate junction.

[0008] In a further embodiment, the side edge portions of the outer layer are sealingly connected to the inner layer. For example, one or more layers of the multilayer structure may be adhered to each other using an adhesive coating material, preferably an elastomer, particularly a silicone. In this embodiment, the side edge portions need not extend from opposite sides outside the gusset region, nor need to be folded over the side edges.

[0009] The present invention is based on the innovative discovery that a coating, preferably a continuous coating, makes a textile impermeable to body fluids. No membrane is required. As mentioned above, articles with a membrane make a rustling noise when a person moves. In contrast, the sanitary or incontinence article of the present invention is almost noiseless and can be repeatedly washed and dried at up to 90° C. without losing fluid retention properties. The coating is able to penetrate the textile structure and therefore adhere to it without any other means. Therefore, the coated textile can be handled like a single layer. This is a great advantage over membrane-based technologies. The handling of the coated textile during the production of the article of the present invention is simplified. In addition, a stretchable layer of a waterproof textile is obtained. In addition, the folded and / or sealed side edge portions help prevent body fluids from diffusing outside the sealed portion and creating a wet feeling on the skin.

[0010] The inner layer absorbs body fluids and transports them quickly to the interior of the multilayer structure. The inner layer has an outer surface facing away from the absorbent core and an inner surface facing the absorbent core. Its surface structure is preferably porous, but can also be textured or smooth. The inner layer is preferably formed by a textile. The term "textile" as used herein means a woven, knitted or stitch-bonded, or any otherwise prepared fabric. Textiles can be made of natural fibers, made of synthetic or chemically produced threads, and also include mixed forms.

[0011] When the outer layer has an outer surface facing away from the absorbent core and an inner surface facing the absorbent core, only the outer surface, or only the inner surface, or both the inner and outer surfaces of the outer layer may be coated with an adhesive coating material, preferably an elastomer, especially silicone.

[0012] The main purpose of the coating is to make the outer layer impermeable to body fluids. To this end, the coating is applied (preferably continuously) over at least the entire area covering the lining area. Optionally, the coating extends beyond the lining area. The preferred elastomer is silicone. Silicone is of medical grade. It has essentially no allergenic activity. Preferably, the coating is adhered to the outer layer by screen printing, but other manufacturing processes such as rolling, spraying, transfer printing are also conceivable. This results in a very uniform coating.

[0013] The outer textile itself provides planar support and a common appearance for the elastomeric coating.The textile can be made from natural fibers, synthetic or chemically produced threads, and can also include hybrid forms.

[0014] In general, the gusset area can be described as being substantially rectangular, in particular pyramidal or hourglass-shaped, or any other shape, with respect to the viewing angle of the wearer, having a long longitudinal axis extending towards the front and rear and a short axis extending towards the sides (towards the left and right sides), and can be of a single-part or multi-part design. As mentioned above, the sealing portion can extend outside the gusset area. In particular, the sealing portion can extend outside the gusset area beyond the opposite side edges of the gusset area, or the sealing layer can extend outside the gusset area beyond the front edge and the rear edge of the gusset area. Preferably, the sealing portion extends outside the gusset area beyond the side edges of the gusset area.

[0015] In a preferred embodiment of the present invention, the outer layer comprises flocking embedded in and extending from the elastomeric coating. Flocking is well known to the technician. Several advantages are associated with flocking outer layers, particularly flocking sealing portions. If flocking is attached to the inner surface of the sealing portion, flocking helps to absorb body fluids, and is therefore used as a sole or additional means of absorption. As mentioned above, some known types of incontinence products produce rustling noises when people move, which is caused by the plastic film around the absorbent core. Therefore, the flocking attached to the inner surface of the outer layer can further help to reduce this noise. On the other hand, if flocking is attached to the outer surface of the outer layer, flocking can not only reduce crackling, but also help to keep the outer layer in place, i.e., help prevent the sliding of sanitary or incontinence products. This is particularly useful when the product is a liner or pad, or when there is no fastening device for connecting to the wearer but is fixed to any other product of the wearer by a separate underwear. The length of the flocking can vary as required, but is preferably in the range of 0.2 to 20 mm, preferably 0.4 to 15 mm, more preferably 0.6 to 10 mm (referring to the visible part of the flocking). Viscose flocking is particularly preferred. Other flocking materials include flocking from natural and / or chemical raw materials or mixed forms.

[0016] In another embodiment of the present invention, the absorbent core comprises one or more layers independently formed by terry cloth, wool, molton or polyester or any other material. The absorbent core absorbs and retains body fluids in its interior. Depending on the needs and the absorbent capacity, it can have a single-layer or multi-layer structure. For example, the absorbent core can include one, two, three, four, five or more absorbent layers. Instead of the number of absorbent layers or in addition to the number of absorbent layers, the absorbent capacity can be adjusted via the thickness of the absorbent core. If there is more than one absorbent layer, the absorbent layers can be the same or different. The absorbent core is preferably formed by one or more layers of weaving, knitting, stitching, fleece fabric or other fabrics. Fabric can be made of natural fibers, made of synthetic or chemically produced lines, and also includes mixed forms.

[0017] The various connections and joints described herein can be independently selected from the group consisting of seam joints, adhesive joints and welded joints. The advantage of seam joints such as (zigzag) lock stitching or 5-thread overlock stitching or another type of sewing stitch is that the sanitary or incontinence articles can be repeatedly washed at up to 90°C. On the other hand, adhesive joints and welded joints can usually only withstand washing temperatures of at least 60°C. Typically, all seams mentioned herein can be completed with waterproof or water-repellent sewing threads.

[0018] Alternatively, the suture perforation is sealed by subsequently applying an adhesive coating material, preferably an elastomer, particularly silicone, and / or a thread that provides a sealing effect by heat or mechanical action. For example, a thread made of a thermoplastic elastomer can be heated so that the softened material fills the gap. Swelling threads can also be used. The suture perforation can also be sealed by applying (e.g. spraying) an adhesive coating material as defined herein (e.g. silicone). In this case, a conventional thread can be used. Using ultrasound, the thread can be heated and softened, thereby filling any remaining gaps.

[0019] According to another embodiment, the article of the present invention further comprises a front cover and a rear cover folded over and sandwiching the front edge and the rear edge of the multilayer structure.

[0020] For example, the front and rear edges of the outer layer (from the wearer's perspective) and the front and rear edges of the inner layer can be trimmed with folded tapes or strips, respectively. The joint between the outer layer and the inner layer is preferably the same as the joint surrounding the absorbent core, but can also be a separate joint. It is further preferred that the joint is provided by any sewing and suturing type. In order to prevent or reduce the risk of body fluids leaking through the front and rear covers, they are preferably formed of waterproof or water-repellent materials.

[0021] The front and rear covers may cover substantially the entire respective front and rear edges of the multilayer structure. In addition, the side edges of the front and rear covers may intersect the side edges of the side edge portions at respective corners of the multilayer structure. To reinforce the corners, portions of the front and rear covers may be sewn to adjacent portions of the side edge portions or processed in a different manner. Preferably, the sewn portions include backstitching using, for example, double backstitching or zigzag stitching.

[0022] As will be appreciated by those skilled in the art, the use of a back cover and a front cover is particularly useful, but not limited to, sanitary pads or pads.Thus, in one embodiment, the reusable hygiene or incontinence article is a sanitary pad or pad.

[0023] A sanitary pad is a sheet of absorbent material used for feminine hygiene. It is worn in the gusset area of ​​a woman's panties and is used to absorb daily vaginal discharge, light menstruation, tampon and menstrual cup backup, spotting, post-sexual discharge, and urinary incontinence. The basic structure of a sanitary pad is related to a menstrual pad, but is generally thinner and often narrower than a menstrual pad. Therefore, they absorb less liquid than a menstrual pad, making them ideal for light discharge and daily cleansing. They are generally not suitable for heavy menstrual flow, which requires them to be changed more frequently.

[0024] Menstrual pads, or simply pads, are absorbent items that women wear inside their underwear when they are menstruating, bleeding after childbirth, recovering from gynecological surgery, experiencing a miscarriage or abortion, or any other situation where absorption of vaginal blood flow is needed. Menstrual pads are worn externally. Pads are generally replaced by stripping off pants and underwear, removing the old pad, attaching the new one to the inside of the underwear, and then putting it back on.

[0025] In another embodiment of the present invention, the reusable hygiene or incontinence article is a pair of underpants (for men or women) or a diaper.

[0026] Underwear is underwear worn on the lower body of men or women.

[0027] A diaper (also called nappy) is an undergarment that allows the wearer to urinate or defecate without using a toilet, by absorbing or containing waste to prevent soiling of outer clothing or the external environment. Diapers are made of cloth or synthetic disposable materials. Cloth diapers are made of multiple layers of fabric and can be washed and reused many times. Diapers are mainly worn by infants, toddlers who have not yet been toilet trained, and children who experience bedwetting. They are also used by adults in certain situations or in various situations (e.g., incontinence).

[0028] In principle, the aforementioned features can be fully integrated into underpants or diapers. Specifically, the use of the front cover and the back cover does not exclude the use of the article as underpants or diapers. On the contrary, the multilayer structure including the front cover and the back cover (with or without the side edge portion) can be attached (e.g., sewn or adhered) to a trouser-shaped or diaper-shaped base structure. Specifically, when the base structure has an inner surface facing the wearer's skin and an outer surface away from the wearer's skin, the multilayer structure can be attached to the inner surface of the base structure in the crotch region. However, in terms of simple structure, comfortable fit and effective use of materials, it is preferred that, in addition to the sealing portion, the textile of the outer layer can include a base portion, which provides the shape and / or structure of pants or diapers together with the sealing portion. The base portion does not have to have, and preferably does not have all the layers of the multilayer structure.

[0029] The base portion may be coated with an elastomer. In addition, the base portion may include flocking extending from the elastomeric coating on its inner surface (i.e., the surface oriented toward the wearer's skin and / or located on the wearer's skin) and / or on its outer surface. When the flocking is provided on the inner surface of the base portion, it provides a comfortable feeling when worn. When the flocking is provided on the outer surface of the base portion, the flocking may help to keep the article in place and / or may have an aesthetic function. As previously mentioned, the flocking may be applied to the inside or the outside or both.

[0030] The elastomer used in the coating of the base part is preferably the same as the elastomer used in the coating of the sealing part, but it can also be different. This can also apply to the flocking, as long as the sealing part includes flocking. This means that the flocking in the sealing part can be the same as the flocking in the base part (for example, having the same length and the same material) or different. However, the sealing part can also be free of flocking, while the base part can include flocking, or both the sealing part and the base part can be free of flocking, or both the sealing part and the base part can include flocking. The following variants are specifically mentioned:

[0031] (i) The sealing portion includes a flocked elastomer, and the base portion does not contain an elastomer and flocking.

[0032] (ii) The sealing portion and the base portion include flocked elastomer.

[0033] (iii) The sealing portion comprises a flocked elastomer and the base portion comprises a non-flocked elastomer.

[0034] (iv) The sealing portion and the base portion comprise an unflocked elastomer.

[0035] If the unflocked elastomeric coating is in direct contact with the skin, it may feel uncomfortable. To avoid this, the elastomeric coating may be covered by a textile layer. For example, the textile layer may be loosely covered or may be adhered to the elastomeric coating. The textile layer may be an additional layer that may be formed of the same material as the inner layer or of the same material as the textile of the outer layer. However, other materials are contemplated herein.

[0036] Underpants and diapers of the present invention may include various edge final forms. For example, the base portion may include flocked leg cutting edges and / or flocked waist cutting edges. For another example, the base portion may include folded leg cutting edges and / or folded waist cutting edges. For example, the leg cutting edge portion and / or waist cutting edge portion of the base portion are folded and connected to the corresponding portion of the inner layer and / or the base portion. In addition, the base portion may include trimmed leg cutting edges and / or trimmed waist cutting edges. For this reason, the leg cutting edges and / or waist cutting edges can be trimmed by folding a belt or strip and connecting it to the corresponding edge. The leg cutting edges at or adjacent to the lining area can be treated equally as in other leg cutting edge areas. The leg cutting edges can also be formed so that an adherent coating material, preferably an elastomer, particularly a silicone resin, is introduced between the different layers of the multilayer structure to seal the layers to each other.

[0037] The underpants may also include a junction at both sides (left and right sides from the wearer's perspective). As described herein, the junction may be provided by sewing, such as 4-thread overlock or lockstitch sewing, or by other seams of adhesive and / or welding.

[0038] The article, whether a panty, diaper, sanitary pad or pad, may also comprise an odour control agent and / or an antimicrobial agent, such as colloidal silver or activated carbon, optionally in a layer, such as in one of the layers mentioned herein and / or in a separate layer.

[0039] In another aspect of the present invention, a method for producing a reusable hygiene or incontinence article having a multilayer structure as described herein comprises the following steps:

[0040] providing a first textile layer defining an inner layer (as described herein) closest to the wearer's skin for absorbing bodily fluids from the wearer;

[0041] providing a second textile layer defining an outer layer (as described herein);

[0042] providing one or more absorbent layers (as described herein) defining an absorbent core between an inner layer and an outer layer;

[0043] coating at least a portion (preferably continuously) of the second textile layer with an elastomer (as described herein), the portion defining a sealing portion (as described herein) that provides a barrier to body fluids;

[0044] superimposing a first textile layer, one or more absorbent layers, and a second textile layer such that the one or more absorbent layers are disposed between the first textile layer and the second textile layer and the sealing portion extends at least over the gusset region (as described herein);

[0045] connecting the first layer, the second layer, and optionally the one or more absorbent layers to each other along the perimeter of the gusset region by a fluid tight joint (as described herein);

[0046] Cutting and shaping the first layer, the second layer, and the one or more absorbent layers (e.g., before or after the step of superimposing, or before or after the step of attaching) such that the second layer includes side edge portions extending from opposite sides outside of the gusset region (as described herein); and

[0047] The side edge portions are folded over the side edges of the first textile layer and connect them to the side edges.

[0048] The features and embodiments described with respect to a reusable hygiene or incontinence article are to be understood as describing the corresponding features and embodiments of a method for producing the reusable hygiene or incontinence article. This means, for example, that when the outer layer has an outer surface facing away from the absorbent core and an inner surface facing the absorbent core, the method may also include coating the outer surface and / or the inner surface of the outer layer with an elastomer.

[0049] In addition, the method may also include flocking the outer layer in the region of the elastomeric coating. For the absorbent core, one or more layers independently formed of terry cloth, wool, molton or polyester or any other material may be used. The joints may be provided by seam joints, adhesive joints and / or welded joints or any other production steps.

[0050] The method may also include folding the front cover and the rear cover on the leading edge and the trailing edge of the multilayer structure and sandwiching them. In addition, the part of the front cover and the rear cover may be attached to the adjacent part of the side edge portion, for example, by sewing.

[0051] The hygiene or incontinence article produced by the process of the present invention is preferably selected from sanitary pads, pads, underpants and diapers, and any other hygiene or incontinence article.

[0052] The outer layer may be cut to shape so as to include a base portion (in addition to the sealing portion) which together with the sealing portion provides the shape of the pants or diaper. Furthermore, the base portion may be coated with an adhesive coating material, preferably an elastomer, in particular a silicone, and optionally the base portion may be flocked in the region of the coating. Furthermore, the method according to the invention may comprise flocking, folding or trimming the leg cut edges and / or the waist cut edges.

[0053] The basic concept of the invention can be equally applied to underwear, in particular panties or diapers or any other product, which is made liquid-tight with an adhesive coating material, preferably an elastomer, in particular silicone, as described herein, and which can be used together with an external (e.g. separately provided) absorbent, such as a panty liner, a pad or similar hygiene and incontinence article. Therefore, another aspect of the invention relates to a reusable hygiene or incontinence underwear, which comprises or consists of a textile layer in the shape of an underwear; a layer of an adhesive coating material, preferably an elastomer, in particular silicone, which is directly applied to the textile layer, the coating being continuous or designed in multiple parts at least in the lining area; and optionally a flocking layer embedded in the coating and extending from the coating. The lining area is configured to removably receive an absorbent for absorbing and retaining body fluids. The lining area does not contain permanent layers other than the textile layer, the coating and the flocking layer. The term "permanent layer" means a piece of material that cannot be removed from the underwear without compromising the integrity of the underwear, in particular without causing damage. Therefore, a removable absorbent is not to be understood as a permanent layer. Optionally, the undergarment comprises flocked, folded or trimmed leg cut edges and / or waist cut edges as described above.

[0054] Furthermore, the textile layers, coatings and flocking of the underwear of the present invention may have the same properties as the corresponding parts of the hygiene or incontinence article of the present invention. Furthermore, the front edge, the rear edge and the side edges may be covered as described with respect to the hygiene or incontinence article of the present invention. Furthermore, the underwear may have a sealing portion and a base portion having the above-mentioned features.

[0055] A method for producing a reusable sanitary or incontinence underwear is another aspect of the invention. The method comprises providing a fabric layer; coating at least a portion of the fabric layer with an adhesive coating material, the portion defining a sealing portion in the lining region, thereby providing a barrier to the body fluids; cutting the fabric layer to shape; optionally flocking an elastomeric coating to provide a flocked layer; and optionally flocking, folding or trimming the leg cut edges and / or the waist cut edges. Furthermore, the lining region contains no permanent layers other than the fabric layer, textile layer or any other form of layer, coating and flocking layer. The coating is preferably continuous at least in the lining region.

[0056] As will be readily understood by those skilled in the art, further features of the underwear of the present invention require corresponding further steps and / or require the use of further and / or specific components. Such additional steps and / or additional components and / or specific components should form corresponding embodiments of the manufacturing method of the present invention. For example, as described herein with respect to underwear and diapers, underwear may include various edge final forms. For example, the textile may include flocked leg cutting edges and / or flocked waist cutting edges. As another example, the textile may include folded leg cutting edges and / or folded waist cutting edges. For example, the leg cutting edge portions and / or waist cutting edge portions of the textile are folded and connected to the corresponding portions of the textile, thereby forming a double-layer textile structure. In addition, the textile may include trimmed leg cutting edges and / or trimmed waist cutting edges. To this end, the leg cutting edges and / or waist cutting edges may be trimmed by folding a belt or strip and connecting it to the corresponding edges. The leg cutting edges at or adjacent to the lining area may be treated in the same manner as in other leg cutting edge regions. In addition, the pants may include a joint at both sides (left and right from the wearer's perspective). As described herein, the join may be provided by stitching, such as a 4-thread overlock or lockstitch stitch, or any other sewing stitch type, or by an adhesive or welding.

[0057] The most preferred embodiment of the present invention is described in detail below. With regard to advantages, definitions and explanations, reference is made to the foregoing.

[0058] The reusable sanitary or incontinence product of the present invention has a multilayer structure. The multilayer structure includes an inner layer, an outer layer, an absorbent core and a fluid-tight joint. The inner layer includes a lining area closest to the wearer's skin for absorbing body fluids from the wearer and / or transporting body fluids away from the wearer. The outer layer includes a sealing portion and a side edge portion for providing a barrier for body fluids. The absorbent core is located between the inner layer and the outer layer. The fluid-tight joint connects the inner layer, the outer layer and optionally the absorbent core to each other along at least a portion of the periphery of the lining area (that is, at least along the side edge of the lining area). The sealing portion is composed of a textile coated with an adhesive coating material, which forms a continuous, impermeable coating that extends into the side edge portion at least on the lining area. The side edge portion extends from the opposite side outside the lining area, folds on the side edge of the inner layer and is connected to the inner layer, and forms a fluid-tight joint between the inner layer and the outer layer along the side edge of the lining area. In this embodiment and the following embodiments, the side edge portion is a part of the outer layer (integrated with the outer layer), rather than a separate textile band, etc.

[0059] In a preferred embodiment, the outer layer of the multilayer structure forms the outermost layer of a reusable hygiene or incontinence article or a layer adjacent to the outermost layer. In particular, in the case of women's underwear, the outer layer forms the outermost layer of the reusable hygiene or incontinence article. This helps to keep the thickness of the underwear small. In the case of men's underwear, the outer layer can form a layer adjacent to the outermost layer of the reusable hygiene or incontinence article. Although a small thickness is not very important for men's underwear, it allows a more robust design. It is preferred to be a reusable hygiene or incontinence article as women's underwear or men's underwear.

[0060] Another preferred embodiment is where the outer layer has an outer surface facing away from the absorbent core and an inner surface facing the absorbent core, wherein the outer surface and / or the inner surface of the outer layer is coated with an adhesive coating material. The advantages achieved by this variant are explained above.

[0061] Preferred reusable hygiene or incontinence articles have flocking embedded in the coating on the outer layer. The flocking can be on the inner surface of the outer layer, or on the outer surface, or on both the inner surface and the outer surface. The advantages achieved by this variant are explained above.

[0062] Preferably, the absorbent core comprises one or more absorbent layers or sheets. Preferably, one or more layers or sheets are independently formed by terry cloth, wool, molton, polyester or superabsorbent polymer or include terry cloth, wool, molton, polyester or superabsorbent polymer. A particularly preferred feature of the present invention is a superabsorbent polymer, which can be placed in a pocket formed in the article and taken out therefrom (as further explained herein). That is to say, the superabsorbent polymer sheet is removable. For the convenience of being introduced into the pocket, the parts can have an elongated shape, such as a cylindrical elongated shape or a rectangular elongated shape. Its size is preferably 2 to 8cm, preferably 3 to 7cm, more preferably 4 to 6cm, most preferably about 5cm wide, and 10 to 35cm, preferably 12 to 30cm, more preferably 15 to 25cm, most preferably about 20cm long. Thickness can vary according to required absorbency, and can generally be in the range of 0.5mm to 10mm, preferably 0.5 to 5.0mm, more preferably 1.0 to 2.0mm.

[0063] Another preferred embodiment includes an open pocket formed in the multilayer structure, which is used to replace the absorbent core, or one or more absorbent layers or sheets thereof. The open pocket can be accessed from the outside (the side facing away from the wearer) or the inside (the side facing the wearer) of the reusable hygiene or incontinence article. It should be understood that this variation can be implemented not only in underwear, but also in other articles such as pads as shown in Figures 9 and 10.

[0064] A particularly preferred structure of the absorbent core comprises a sheet of superabsorbent polymer (as defined above) wrapped by at least two textile-based absorbent layers. Preferably, the superabsorbent polymer sheet is replaceable and the at least two textile-based absorbent layers are fixedly attached to the multilayer structure and form an open pocket. The at least two textile-based absorbent layers are preferably configured to easily absorb and transport body fluids only or at least primarily in the direction of the superabsorbent polymer sheet. Thus, the superabsorbent polymer sheet is given sufficient time to absorb body fluids and also provides a dry feel.

[0065] In a preferred reusable hygiene or incontinence article, the joint is selected from a seam joint, an adhesive joint and a welded joint and a combination thereof. Further preferably, the joint is formed by a combination of a seam joint and an adhesive joint, or a combination of a seam joint and a welded joint. The advantages of this structure become apparent from the following further specific embodiments.

[0066] According to a specific embodiment, the outer layer has an outer surface facing away from the absorbent core and an inner surface facing the absorbent core. The inner layer has an outer surface facing away from the absorbent core and an inner surface facing the absorbent core. The joint includes a hardened molten film on the inner surface of the outer layer and / or a hardened molten film on the inner surface of the inner layer. The hardened molten film at least partially seals the threading holes of the seam joint. By sealing from the inside of the multilayer structure, the hardened molten film does not cause discomfort and does not hinder ironing. At the same time, the seam joint helps the joint to firmly withstand washing and drying at about 90°C.

[0067] The molten film preferably comprises or consists of a thermoplastic polymer, in particular a thermoplastic polyurethane.

[0068] According to another preferred embodiment, the outer layer comprises a rear cover portion sealingly connected to the multilayer structure, wherein the continuous impermeable coating extends into the rear cover portion, wherein the rear cover portion is folded over the rear edge of the inner layer and connected to the inner layer, forming a fluid-tight joint between the inner layer and the outer layer along the rear edge of the gusset area. The rear cover portion is understood to be a part of the outer layer. This embodiment does not have a front cover portion, but allows access at this location to an open pocket formed in the multilayer structure for removable introduction of the absorbent core.

[0069] In an alternative embodiment, the outer layer comprises a rear cover portion and a front cover portion sealingly connected to the multi-layer structure, wherein the continuous impermeable coating extends into the rear cover portion and the front cover portion, wherein the rear cover portion and the front cover portion are folded over respective rear and front edges of the inner layer and connected to the inner layer, thereby forming a fluid-tight joint between the inner layer and the outer layer along the rear and front edges of the gusset region. According to this alternative embodiment, a circumferential joint is formed around the gusset region, and the absorbent core is non-replaceable.

[0070] In further embodiments, the sealing band extends in the width direction across the side edge portions and the rear cover portion and, if present, the front cover portion.

[0071] The reusable sanitary or incontinence article of the present invention can be selected from sanitary pads, pads, underpants and diapers as described elsewhere herein. For example, a pad in the form of a multilayer structure as described herein can be used for placement in conventional underpants. Alternatively, a pad in the form of a multilayer structure as described herein can be provided or used as a pre-assembly for attachment (e.g., sewing or gluing) to underpants. Attachment can be point or full surface. In addition, the pad can be of various shapes and sizes. For example, the pad can cover the entire width of the rear seam.

[0072] A method for producing a reusable sanitary or incontinence article as described above comprises the following steps: providing a first textile layer defining an inner layer (as described herein) closest to the wearer's skin, the first textile layer comprising a lining region for absorbing body fluids from the wearer and / or for transporting body fluids away from the wearer. Providing a second textile layer defining an outer layer (as described herein). Providing one or more absorbent layers and / or sheets defining an absorbent core (as described herein) between the inner layer and the outer layer. At least a portion of the second textile layer is coated with an adhesive coating material. The portion defines a sealing portion (as described herein) that provides a barrier to body fluids. The first textile layer, the one or more absorbent layers and / or sheets and the second textile layer are superimposed so that the one or more absorbent layers and / or sheets are arranged between the first textile layer and the second textile layer, and the sealing portion extends at least on the lining region into the side edge portion (as described herein) of the second layer. The first layer, the second layer and optionally the one or more absorbent layers and / or sheets are connected to each other by a fluid-tight joint (as described herein) along at least a portion of the periphery of the lining region. Optionally, the first layer, the second layer and the one or more absorbent layers and / or sheets are cut to shape. The side edge portions of the second layer are sealingly connected to the multilayer structure. In addition, the side edge portions extend from opposite sides outside the gusset area, are folded over the side edges of the first textile layer and connected to the inner layer, and form a fluid-tight joint between the inner layer and the outer layer along the side edges of the gusset area.

[0073] Another reusable sanitary or incontinence underwear of the present invention comprises or consists of the following: a first textile layer, which is in the shape of underwear and forms the outermost layer of the underwear. A second textile layer next to the first textile layer, which is optional (mainly depending on whether the underwear is for women or for men). A third layer, which forms the innermost layer, includes a lining area closest to the wearer's skin. A layer of adhesive coating material directly applied to the first textile layer and / or the second textile layer (if present) forms a continuous impermeable coating extending at least on the lining area. The flocking layer is embedded in the coating and extends from the coating. In addition, the lining area is configured to removably receive an absorbent core for absorbing and retaining body fluids.

[0074] The reusable sanitary or incontinence underwear as described above can be produced by a method comprising the following steps: providing a first textile layer; optionally, providing a second textile layer; providing a third textile layer; coating at least a portion of the first textile layer and / or at least a portion of the second textile layer (if present) with an adhesive coating material, the portion defining a sealing portion extending at least over the lining area for providing a barrier to body fluids; optionally, cutting the first textile layer and the third textile layer and the second textile layer (if present) into shape; flocking the coating to provide a flocking layer; and connecting the first textile layer to the third textile layer along a portion of the periphery of the lining area so as to form an open pocket for receiving and / or replacing the absorbent core or one or more absorbent layers or sheets thereof.

[0075] Finally, it should be noted that each feature described in relation to a particular aspect or embodiment is intended to be combinable with other aspects or embodiments, unless this combination is technically meaningless or impossible. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] The inventive concept, non-limiting embodiments and further advantages of the inventive concept will now be described with reference to the accompanying drawings, in which:

[0077] Figure 1 An exemplary multilayer structure for a hygiene or incontinence article is shown.

[0078] Figure 2a -e shows an exemplary method for producing a multilayer structure.

[0079] Figure 3 to Figure 4 The final form of a panty cutout portion configured for use with a replaceable absorbent body is shown.

[0080] FIG. 5 illustrates an exemplary replaceable absorbent body.

[0081] Figures 6 and 7 illustrate a pant providing access to a removable absorbent core.

[0082] Figures 8 and 9 show a pad providing access to a removable absorbent core.

[0083] 10, 11 and 12 are examples of men's underwear having a coated and flocked layer adjacent to the outermost layer and a permanent and / or replaceable absorbent body.

[0084] FIG. 13 shows another example of an article of the present invention in the form of a mat.

[0085] Fig.14 An exemplary production and / or assembly method of men's underwear according to an embodiment of the present invention is shown.

[0086] FIG. 15 illustrates a variation of the open position of an open pocket of an exemplary men's underpants.

[0087] Fig.16 The production and / or assembly of a female panty according to an embodiment of the present invention is shown.

[0088] Figure 17 shows in detail the folding of the side edges of the panty chassis which extend beyond the gusset area on the inner layer side edges.

[0089] Fig.18 is based on Fig.16 A cross-sectional view of the crotch region of a women's underpants produced by the process shown.

[0090] Fig.19 yes Fig.18 A cross-sectional view of the crotch area of ​​a women's underpants and showing the seal from the inside.

[0091] Fig. 20 An open (slid-in) position is shown for introducing and removing the removable absorbent core. DETAILED DESCRIPTION

[0092] The description of the invention provided herein is given purely by way of example and should not be construed in any way as limiting the scope or extent of the invention.The invention will be described with reference to an exemplary range of undergarments, such as underpants, shorts, briefs or panties, or underpants.

[0093] In the following description, the inventive concept is described with reference to reusable, washable and dryable hygiene and incontinence articles.

[0094] Figure 1 An exemplary multilayer structure 100, 101 of a hygiene or incontinence article is shown. The structure 100 conforms to the human body and consists of an outer layer 10, an adhesive coating 20, an absorbent core 30 and an inner layer 40. When worn, the inner layer 40 is against the skin in the crotch area. The absorbent core 30 is arranged between the inner layer 40 and the coating 20. The coating 20 is located between the outer layer 10 and the absorbent core 30, for example, the coating 20 is adhered to the inner surface of the outer layer 10 over its entire surface. However, the coating 20 can also be adhered to the outer surface of the outer layer 10 over its entire surface.

[0095] The structure 101 conforms to the human body and is composed, in order, of an outer layer 10, a coating 20, a flocking layer 50, an absorbent core 30, and an inner layer 40. The coating 20 is adhered to the inner surface of the outer layer 10 over its entire surface. Similarly, the flocking layer 50 is adhered to the inner surface of the coating 20 over its entire surface. However, the coating 20 may also be adhered to the outer surface of the outer layer 10 over its entire surface, and the flocking layer 50 may be adhered to the outer surface of the coating 20 over its entire surface.

[0096] Although structures 100, 101 are shown and described as being composed of the described layers, they can in principle include more layers. In addition, structures 100, 101 are in the shape of sanitary pads or incontinence pads. However, they can also be a part of another sanitary or incontinence article such as underwear. In addition, although absorbent core 30 is shown as one layer, it can be composed of more than one layer such as 2, 3, 4, 5 or more layers.

[0097] Figure 2a -e shows an exemplary method for producing a multilayer structure 200, which may be the same as one of the multilayer structures 100, 101. Figure 2a As shown, the absorbent core 30 and the inner layer 40 are provided in fine or rough cut or other forms, in this example in the shape of a pad to be produced, while the material 11 from which one or more outer layers 10 can be cut is provided in rough cut form. The material 11 is coated with an adhesive coating material on the outer layer 10 to form a coating 20. Optionally, the coating can be flocked. After drying, for example in a drying oven or a hot press, the material 11 is cut to shape, leaving side edge portions 12a, 12b extending over the corresponding side edges of the absorbent core 30 and the inner layer 40. Figure 2b The layers are shown stacked on top of each other in the desired order. The side edge portions 12a, 12b are then folded over the corresponding side edges of the absorbent core 30 and the inner layer 40 and attached to the inner layer 40 (see Figure 2c ). The attachment can be achieved by hot pressing glue, adhesive coating material (preferably elastomer, especially silicone) between the folded side edge portions 12a, 12b and the inner layer 40, by sewing or welding or any other form, and / or by sewing the folded side edge portions 12a, 12b to the inner layer 40. If necessary, the front and rear edges of the multilayer structure can be trimmed with corresponding front and rear covers 60a, 60b (see Figure 2d ). In addition, the corner seams 62 may extend across the corners of the multi-layer structure so that portions of the rear covers 60a, 60b are attached to adjacent portions of the side edge portions 12a, 12b (see Figure 2e ).

[0098] Figure 3-4 A cut-out portion of a panty configured for use with a replaceable absorbent body is shown. Figure 3Examples of different flocking patterns are shown. Typically, the panties consist of a conformable outer layer 310 in the form of a panty and an elastomeric layer 320 on the inside of the outer layer at least in the crotch / lining area. In these examples, the elastomeric layer 320 extends over the entire inner surface of the outer layer. In panties 300, the elastomeric layer 320 does not contain flocking. Panties 301 is flocked with a flocking layer 350 only in the lining area. In panties 302, the flocking layer 350 extends over the entire surface of the elastomeric layer. Further variations are shown in panties 303, 304, 305, 306, 307. In particular, in panties 300, the coated outer layer does not have flocking on the entire inner surface of the outer layer. In panties 301, the coated outer layer contains flocking only in the lining area and the leg opening / waistband area. In panties 302, the coated outer layer contains flocking only in the lining area. In underpants 303, the coated outer layer contains flocking only in the leg opening / waistband area. In underpants 304, the coated outer layer contains flocking over the entire inner surface of the outer layer. In underpants 305, the coated outer layer contains coating and flocking only in the gusset area and the leg opening / waistband area. In underpants 306, the coated outer layer contains coating and flocking only in the gusset area. In underpants 307, the coated outer layer contains coating and flocking only in the leg opening / waistband area.

[0099] Figure 4 Different possibilities for final leg and waist cuts are shown. The final form can be combined with any multilayer structure and flocking pattern described herein. Underpants 400 shows flocked leg cut edges 450a and flocked waist cut edges 450b. Underpants 401 includes folded leg cut edge portions 412a and folded waist cut edge portions 412b. The folded cut edge portions 412a, 412b can be attached to the outer layer, flocking layer and / or coating by adhesive or stitching or ultrasound or any other bonding method. The leg cutout portions in the lining area can be similarly processed.

[0100] An exemplary interchangeable absorbent is shown in FIG5. The underpants and / or the absorbent may include means for reversibly attaching the two together. For example, the underpants may include a pocket into which the absorbent may be inserted (see FIG5). Figure 5d ). To facilitate gripping and removal of the absorbent from the pocket, the absorbent 800 is provided with a strip or tab 880, such as Figure 5a As shown. Figure 5b As shown, the absorbent body 801 may further include side flaps 890, which may be connected to the underpants, for example, via buttons 892 or other connecting means (eg, Velcro fasteners, etc.).

[0101] The absorbent body may have the same multilayer structure as the multilayer structure of the articles described herein. However, the replaceable absorbent body may in principle omit the elastomeric layer when the panty is sealed by an elastomeric layer directly adhered to the panty / outer layer. However, if Figure 5c As shown, when the elastomeric coating and / or flocking layer is applied to the outermost surface, it can not only keep dry but also prevent the replaceable absorbent body from sliding inside the underwear, especially when the absorbent body is loosely placed in the underwear, such as Figure 5e shown.

[0102] Figure 6 shows the outside of the panties ( Figure 6a ) and medial ( Figure 6b ) and cross-section ( Figure 6c ). In this example, the inner side provides access to an open pocket for receiving the absorbent core or a layer or sheet thereof (indicated by an arrow). For example, a layer of microfiber material or a sheet of superabsorbent material can be used as a replaceable absorbent body. Figure 6c , a cross section of the various layers of an exemplary underpants is identified in . Specifically, the outer layer (L1) comprises an elastic knit (polyester / elastane) provided with an impermeable flock coating. In this example, the absorbent core (L2) is replaceable, but may be permanent in other examples. The inner layer (L3) represents the gusset area material. Figure 6c Further shown is the lower L1 layer, the folding of the outer layer on the side of the gusset region material.

[0103] FIG. 7 shows another pair of underpants which provide access to the open pocket from the outside of the underpants. Figure 7a In addition, the multilayer structure is Figure 6c Same as shown in .

[0104] Figures 8 and 9 show a liner providing access to an open pocket, such as Figure 8b and Figure 9b As shown by the arrow in . The open bag can be configured to receive an absorbent body. Fig.9c The layers of an exemplary pad are identified in cross section in FIG. Figure 6c The structure shown in , except that the flocking forms the outermost layer and the elastic knit (polyester / spandex) is closer to the user than the flocking (L1). In this example, the absorbent core (L2) is replaceable, but in other examples it can be permanent. In addition, replaceable absorbents can be combined with non-replaceable absorbents. The inner layer (L3) represents the lining area material. Fig.9c It is further shown that the outer layer (L1) is folded over the side of the gusset region material (L3).

[0105] Figures 10, 11 and 12 are examples of men's underwear with an elastic knit (cotton / spandex) as the outermost layer, a coating and flocking layer of elastic knit (polyester / spandex) next to the outermost layer, a permanent or replaceable absorbent body and a mesh (Figure 12) or gusseted area material (Figures 10, 11) as the innermost layer. In the examples of Figures 10 and 12, the open pocket ( Fig.10b , Figure 12b In the example of FIG. 11 , the open pocket is accessible from the outside of the panties ( Fig.11b ).exist Fig.10c , 11c The corresponding multilayer structures are shown in 12a and 12c.

[0106] FIG. 13 shows another example of a pad, similar to the pads shown in FIGS. 8 and 9 .

[0107] Fig.14 Shown is an exemplary production and / or assembly method of men's underwear according to an embodiment of the present invention. Provided with an absorbent core material forming an absorbent core 1030 (one or more layers) and a lining area material forming an inner layer 1040. These layers are stacked and connected to each other along their side edges using a seam / sewing 1080 (steps A and B). Then, the structure is attached (e.g., sewed) to the inner side of an outer layer 1010a in the crotch region along the side edges and lower edge (along the following sealing / adhesive tape 1081). An open pocket 1090 is formed between the outer layer 1010a and the inner layer 1040 for introducing a replaceable absorbent core. The seam can be covered by a sealing tape 1081 (step C). The back side of the outer layer 1010b is made impermeable with an elastomer layer that can be flocked or not flocked. In this example, the elastomer layer is flocked on the left fabric side. Then, the layered structure is attached to the crotch region (step D) of men's underwear 1000. In the final underpants 1000 , reference numeral 1010 a denotes a leakage-proof region, ie, a region that is impermeable so as to prevent body fluids from dripping through the underpants 1000 .

[0108] FIG. 15 shows a variation of the open position of the open bag 1090, 1090a. Fig.15a , which shows an inner view on the left side (on the left fabric side) and an outer view on the right side (on the right fabric side), similar to Fig.14 , the opening of the open pocket 1090 is formed on the inner side (left fabric side) of the underwear. Fig.15b In the embodiment, the opening of the open pocket 1090a is formed on the outside (right fabric side) of the underwear.

[0109] Fig.16 The production and / or assembly of women's panties is shown. An absorbent core material forming an absorbent core 1130 (one or more layers) and a lining area material forming an inner layer 1140 are provided. These layers are stacked and connected to each other along their side edges using seams / sutures 1180 (steps A and B). On both sides of the structure, a sealing tape 1190 is attached to the side edge regions (step C). Optionally, the flocking side can be covered with a mesh layer.

[0110] A panty base 1200 is provided. The base 1200 has the shape of a panty and is composed of an outer layer 1110, which includes a coated portion and an optional flocked portion. Area 1111 represents a sealing portion coated with an elastomer to make the portion impermeable. The side edges 1115 of the sealing portion 1111 extending outside the gusset area are not flocked, while the rest of the sealing portion 1111 is flocked. Area 1112 represents the leg cuts and waist edges that are coated and flocked.

[0111] The upper edge of the layered structure 1220 including the inner layer 1140 and the absorbent core 1130 is folded and sewn along the seam line 1222. The structure 1220 is then attached to the crotch region of the chassis 1200 (step D).

[0112] Then, the structure 1220 is attached (e.g., sewn) to the inside of the base 1200 in the crotch region along the seams near the side edges of the structure 1220. The side edges 1115 of the base 1200 extending outside the gusset area are folded over the side edges of the structure 1220 and sewn thereto (step E). Then, the seams 1202 in the side edge regions are sealed from the inside by hot-melting the sealing tape added in step C (steps F, G). Finally, sealing tapes are attached to the upper and lower edges 1204 of the gusset area.

[0113] FIG. 17 shows step E in more detail, i.e. the side edge 1115 of the folded panty chassis extends over the side edge of the inner layer (IL) outside the lining area. The layers are shown in different patterns. IL = inner layer (lining area), BF = body fabric, FL = flocked layer / coating, EL = non-flocked elastomeric layer / coating. It can be seen that in Fig.17a In the example of FIG. 1 , the side edge 1115 folded over the inner layer (IL) is elastomer coated and has no flocking. Fig.17b It is shown that the width of the non-flocking area is variable. Fig.17b As shown on the left side, the non-flocking area is quite wide, while Fig.17b On the right side, the side edge is completely flocked, ie there are no non-flocked areas in the side edge region.

[0114] Fig.18 is based on Fig.16 A cross-sectional view of the crotch region of a panty produced by the process shown. The absorbent core 1130, inner layer 1140, seam / seam line 1180, sealing tape 1190, coated and flocked outer layer 1110, seam / seam line 1222, optional mesh layer 1170 ( Fig.16 not shown).

[0115] Fig.19 yes Fig.18A cross-sectional view of the crotch region of a women's underpants is shown, and is sealed from the inside by heat melting a sealing tape 1190 included in the layer structure by applying heat and pressure in the direction indicated by the arrow.

[0116] Fig. 20 The open (slid-in) position for introducing and removing the removable absorbent core is shown. The arrows indicate the position of the opening and the direction of introduction of the absorbent core. The illustrated positions are the inside of the front side (upper left), the outside of the front side (upper right), the inside of the back side (lower left), and the outside of the back side (lower right).

Claims

1. A reusable sanitary or incontinence article having a multi-layer structure, include: an inner layer comprising a gusset region closest to the wearer's skin for absorbing body fluids from the wearer and / or transporting body fluids away from the wearer; an outer layer comprising a sealing portion and side edge portions for providing a barrier to body fluids; an absorbent core positioned between the inner layer and the outer layer; and a fluid-tight joint connecting the inner layer, the outer layer, and optionally the absorbent core to one another along at least a portion of the periphery of the gusset region; wherein the sealing portion is comprised of a textile coated with an adhesive coating material forming a continuous impermeable coating extending at least over the lining region into the side edge portions, and The side edge portions extend from opposite sides outside the gusset region, are folded over and connected to the side edges of the inner layer, and form a fluid-tight joint between the inner layer and the outer layer along the side edges of the gusset region.

2. The reusable hygiene or incontinence article according to claim 1, in, The outer layer of the multilayer structure forms the outermost layer or a layer adjacent to the outermost layer of the reusable hygiene or incontinence article.

3. A reusable hygiene or incontinence article according to claim 1 or 2, in, The outer layer has an outer surface facing away from the absorbent core and an inner surface facing the absorbent core, and wherein the outer surface and / or the inner surface of the outer layer is coated with the adhesive coating material.

4. A reusable hygiene or incontinence article according to any one of the preceding claims, in, The outer layer includes flocking embedded in the coating, wherein the flocking is located on an inner surface, an outer surface, or both of the inner and outer surfaces of the outer layer.

5. A reusable hygiene or incontinence article according to any one of the preceding claims, in, The absorbent core comprises one or more absorbent layers or sheets, preferably wherein the one or more layers or sheets are independently formed of or comprise terry cloth, wool, Molton, polyester or a superabsorbent polymer.

6. A reusable hygiene or incontinence article according to claim 5, in, The multi-layer structure forms an open pocket for replacing the absorbent core or one or more of its absorbent layers or sheets.

7. A reusable hygiene or incontinence article according to any one of the preceding claims, in, The absorbent core comprises a superabsorbent polymer sheet enclosed by at least two textile-based absorbent layers, Preferably, wherein said superabsorbent polymer sheet is replaceable and said at least two textile-based absorbent layers are fixedly attached to said multi-layer structure and form an open pocket.

8. A reusable hygiene or incontinence article according to any one of the preceding claims, in, The joint is selected from a seam joint, an adhesive joint and a welded joint, and combinations thereof, wherein the joint is preferably formed by a combination of a seam joint and an adhesive joint, or a combination of a seam joint and a welded joint.

9. The reusable hygiene or incontinence article according to claim 7, in, The outer layer has an outer surface facing away from the absorbent core and an inner surface facing the absorbent core, wherein the inner layer has an outer surface facing away from the absorbent core and an inner surface facing the absorbent core, wherein the joint comprises a hardened melt film on the inner surface of the outer layer and / or a hardened melt film on the inner surface of the inner layer, wherein the hardened melt film at least partially seals the threading holes of the seam joint, wherein the melt film preferably comprises or consists of a thermoplastic polymer, in particular thermoplastic polyurethane.

10. A reusable hygiene or incontinence article according to any one of the preceding claims, in, the outer layer comprising a rear cover portion sealingly connected to the multi-layer structure, wherein the continuous impermeable coating extends into the rear cover portion, wherein the rear cover portion is folded over and connected to the rear edge of the inner layer, forming a fluid-tight joint between the inner layer and the outer layer along the rear edge of the gusset region; or wherein the outer layer comprises a rear cover portion and a front cover portion sealingly connected to the multi-layer structure, wherein the continuous impermeable coating extends into the rear cover portion and the front cover portion, wherein the rear cover portion and the front cover portion are folded over respective rear and front edges of the inner layer and connected to the inner layer, forming a fluid-tight joint between the inner layer and the outer layer along the rear and front edges of the gusset region.

11. The reusable hygiene or incontinence article according to claim 9, in, A sealing band extends in the width direction across the side edge portions and the rear cover portion and optionally the front cover portion.

12. A reusable hygiene or incontinence article according to any one of the preceding claims, in, The hygiene or incontinence article is selected from sanitary pads, pads, underpants and diapers.

13. A method for producing a reusable hygiene or incontinence article according to any one of claims 1 to 12, include: providing a first textile layer, the first textile layer defining an inner layer closest to the wearer's skin, the inner layer including a gusset region for absorbing body fluids from the wearer and / or for transporting body fluids away from the wearer; providing a second textile layer defining an outer layer; providing one or more absorbent layers and / or sheets defining an absorbent core between said inner layer and said outer layer; coating at least a portion of the second textile layer with an adherent coating material, the portion defining a sealing portion that provides a barrier to body fluids; superimposing the first textile layer, the one or more absorbent layers and / or sheets, and the second textile layer such that the one or more absorbent layers and / or sheets are arranged between the first textile layer and the second textile layer, and the sealing portion extends at least over the lining area into a side edge portion of the second layer; connecting the first layer, the second layer, and optionally one or more absorbent layers and / or sheets to one another along at least a portion of the periphery of the gusset region by a fluid-tight joint; Optionally, cutting the first layer, the second layer and one or more absorbent layers and / or sheets into shape; sealingly connecting the side edge portions of the second layer to the multilayer structure, The side edge portions extend from opposite sides outside the gusset area, are folded over the side edges of the first textile layer and connected to the inner layer, forming a fluid-tight joint between the inner layer and the outer layer along the side edges of the gusset area.

14. A reusable sanitary or incontinence undergarment comprising or consisting of: composition: a first textile layer in the shape of an undergarment, which forms the outermost layer of the undergarment; Optionally, a second textile layer adjacent to the first textile layer; a third layer, the third layer forming an innermost layer, the innermost layer including a gusset region closest to the wearer's skin; a layer of adhesive coating material applied directly to the first textile layer and / or, if present, directly to the second textile layer, the coating forming a continuous, impermeable coating extending at least over the lining region; and A flocking layer embedded in and extending from the coating; The gusset region is configured to removably receive an absorbent for absorbing and retaining body fluids.

15. A method for producing a reusable hygiene or incontinence underwear according to claim 14, include: providing a first textile layer; Optionally, providing a second textile layer; providing a third textile layer; coating at least a portion of the first textile layer and / or, if present, at least a portion of the second textile layer with an adhesive coating material, the portion defining a sealing portion extending at least over the gusset region for providing a barrier to body fluids; Optionally, cutting the first textile layer and the third textile layer and, if present, the second textile layer to shape; flock coating to provide a flocking layer; and The first textile layer is joined to the third textile layer along a portion of the perimeter of the gusset region such that an open pocket is formed for receiving and / or replacing an absorbent core or one or more absorbent layers or sheets thereof.

Images