Method for stabilizing nonwoven fibers, and reusable moisture-absorbing articles

Abstract

A method for stabilizing nonwoven fibers is disclosed. The stabilizing material 120 is applied to at least some or all of a nonwoven material 110 that includes or is in the form of multiple nonwoven fibers, such that the stabilizing material 120 is applied to at least some or all of the nonwoven fibers. The nonwoven fibers to which the stabilizing material 120 is applied are bonded to the stabilizing material 120 by adhesive and / or heat bonding, thereby stabilizing at least some or all of the nonwoven material 110. TIFF2026513953000002.tif158142

Description

Technical Field

[0006] , ,

[0001] The present invention relates to a method for stabilizing non-woven fibers and a reusable moisture-absorbing article.

Background Art

[0002] Background Disposable absorbent articles, such as those designed for urinary incontinence or menstrual fluid absorption, are widely used, but their single-use nature causes environmental problems. On the other hand, reusable absorbent products are more environmentally friendly, but compared to disposable products, they are particularly complex to manufacture, especially in the initial stages of production, and are expensive for consumers.

[0003] Worldwide, there is an impending ban from regulatory authorities on single-use products containing plastic polymers, and the absorbent hygiene industry is facing major challenges. Current single-use adult hygiene products contain plastic polymers.

[0004] Manufacturers of single-use products are considering using natural fibers in their products. However, natural fibers are less effective than synthetic fibers in terms of absorbency because they have too little surface space for water to bind. One solution could be the recycling of synthetic fibers, which requires collecting used hygiene products from the market, which is extremely difficult if not impossible.

[0005] A further way to potentially comply with impending regulations is to create washable and reusable non-woven products. However, non-woven fibers are unstable and simply break during washing or laundering, so until now, manufacturers of single-use products have not been able to create a viable reusable alternative.

[0006] However, reusable sanitary products certainly exist, and they are currently not economically viable for large-scale production. They are simply too expensive because the simple labor required for their manufacture is costly, and the exorbitant prices of raw materials (knitted and woven fabrics) are substantially higher than those of nonwoven materials. Compromising product performance to lower manufacturing costs is undesirable, as poorly performing products can generate more waste and, in the long run, may end up being even more expensive for end-users. [Overview of the project]

[0007] Purpose of the invention Therefore, an object of the present invention is to provide a method for stabilizing nonwoven fibers that overcomes, at least improves, or at least provides a useful alternative for the public, some of the aforementioned drawbacks.

[0008] Furthermore, or alternatively, an object of the present invention is to provide a reusable moisture-absorbing article manufactured by stabilizing nonwoven fibers, which overcomes, at least improves, or at least provides a useful alternative for the public, some of the aforementioned drawbacks.

[0009] Brief summary of the invention In a first aspect, the present invention relates to a method for stabilizing nonwoven fibers, the method being: A step of providing a nonwoven material that includes or is in the form of multiple nonwoven fibers, A step of providing a stabilizing material, The step of applying the stabilizing material to at least some or all of the nonwoven fabric material such that the stabilizing material is applied to at least some or all of the plurality of nonwoven fabric fibers, wherein the stabilizing material is a material configured to be bonded to the nonwoven fabric fibers by adhesive and / or heat bonding, The steps include joining the multiple nonwoven fibers to which the above-mentioned stabilizing material has been applied to the stabilizing material by adhesive and / or thermal bonding, and Includes.

[0010] Preferably, the nonwoven fibers are joined to form a bonded nonwoven fiber layer, and the bonded nonwoven fiber layer is When the above layer is washed or laundered at least once or more times, at least a portion of the bonded nonwoven fibers are bonded to such an extent that the bonded nonwoven fibers do not decompose or are substantially decomposed. Includes.

[0011] Preferably, the nonwoven material is a nonwoven material layer.

[0012] Preferably, the nonwoven material is a nonwoven fabric, a nonwoven cloth, or a nonwoven fabric.

[0013] Preferably, the thermal bonding involves fusing at least some or all of the nonwoven fibers at a temperature that is interrelated with the melting point of the fibers to be fused and / or the melting point of the stabilizing material.

[0014] Preferably, the thermal bonding is carried out at a temperature of 70°C to 240°C.

[0015] Preferably, the thermal bonding is carried out at a temperature of 100°C to 240°C.

[0016] Preferably, the stabilizing layer is formed as a stabilizing layer.

[0017] Preferably, the stabilizing layer is a film or membrane.

[0018] Preferably, the stabilizing layer has a thickness based on the type of nonwoven fabric material and the melting point of the nonwoven fabric material.

[0019] Preferably, the stabilizing layer has a thickness of 0.005 mm to 0.5 mm.

[0020] Preferably, the stabilizing layer is a breathable layer.

[0021] Preferably, the stabilizing layer is a complete layer.

[0022] Preferably, the stabilizing layer is a partial layer.

[0023] Preferably, the stabilizing layer is a frame layer.

[0024] Preferably, the stabilizing layer is a polyurethane (PU) material layer.

[0025] Preferably, the stabilizing layer is a polyethylene (PE) material layer.

[0026] Preferably, the stabilizing layer is a fabric adhesive layer.

[0027] Preferably, the non-woven fibers are synthetic polymers, biocomponent fibers, natural fibers, artificial fibers, or combinations thereof.

[0028] Preferably, the synthetic polymer is selected from polyethylene (PE), polypropylene (PP), or polyethylene terephthalate (PET).

[0029] Preferably, the natural fibers are selected from wood, pulp, cotton, or bamboo.

[0030] Preferably, the artificial fibers are selected from viscose, lyocell, polylactic acid (PLA), or cellulose acetate.

[0031] Preferably, the joining is performed in a patterning manner.

[0032] Preferably, the stabilizing material is an adhesive material.

[0033] Preferably, the adhesive material is glue.

[0034] Preferably, the adhesive material is spray glue or roll-on glue.

[0035] Preferably, the adhesive material is a polyurethane (PU) adhesive.

[0036] Preferably, the adhesive material is a polyethylene (PE) adhesive.

[0037] Preferably, the adhesive material is a polylactic acid (PLA) adhesive.

[0038] Preferably, the adhesive material is a textile adhesive.

[0039] Preferably, an adhesive substance is applied to the stabilizing material for bonding.

[0040] Preferably, the adhesive substance is glue.

[0041] Preferably, the glue is a spray glue or a roll-on glue.

[0042] Preferably, the adhesive is a polyurethane (PU) adhesive.

[0043] Preferably, the adhesive is a polyethylene (PE) adhesive.

[0044] Preferably, the adhesive is a polylactic acid (PLA) adhesive.

[0045] Preferably, the adhesive is a textile adhesive.

[0046] In a second aspect, the present invention relates to a reusable moisture-absorbing article comprising a plurality of nonwoven fibers stabilized using one or more of the methods defined above or below.

[0047] Preferably, the reusable moisture-absorbing article is an undergarment, or intended for use with an undergarment, that is positioned close to the user's body and absorbs (preferably absorbs and retains) moisture from the user's body.

[0048] Preferably, a reusable moisture-absorbing article is Diapers, Sanitary napkins, Incontinence pads, Incontinence pouch Women's underwear for incontinence, Men's underwear for incontinence, Breast pads, Mattress pad (preferably a mattress pad for a bed, a mattress pad for a sheet), Baby diaper changing pads, or Baby crib protector It is one of the following.

[0049] In a third aspect, the present invention relates to a method for constructing a reusable moisture-absorbing article which is an undergarment or for use with an undergarment, which is positioned close to the user's body and absorbs (preferably absorbs and retains) moisture from the user's body, the method being: A step of providing at least one layer of a nonwoven material which contains or is in the form of multiple nonwoven fibers, A step of applying at least one stabilizing material to at least a portion of at least one layer of the nonwoven material such that the stabilizing material is applied to at least some or all of the plurality of nonwoven fibers, wherein the stabilizing material is a material configured to be bonded to the nonwoven fibers by adhesive and / or thermal bonding, and the stabilizing material forms a stabilizing layer, and The step of joining the plurality of nonwoven fabric fibers to which the above-mentioned stabilizing material has been applied to the above-mentioned stabilizing material by adhesive and / or heat bonding, thereby forming the reusable moisture-absorbing article, and Includes.

[0050] Preferably, the nonwoven fibers are bonded in such a way that the bonded nonwoven fibers do not decompose or substantially decompose when subjected to at least one or more washes or laundering cycles.

[0051] Preferably, the thermal bonding involves or includes fusing at least some or all of the nonwoven fibers at a temperature that is interrelated with the melting point of the fibers to be fused and / or the melting point of the stabilizing material.

[0052] Preferably, the thermal bonding involves or includes fusing at least some or all of the nonwoven fibers at a temperature that is interrelated with the melting point of the fibers to be fused and / or the melting point of the stabilizing material.

[0053] Preferably, the thermal bonding is carried out at a temperature of 70°C to 240°C.

[0054] Preferably, the thermal bonding is carried out at a temperature of 100°C to 240°C.

[0055] Preferably, the stabilizing layer is a film or membrane.

[0056] Preferably, the stabilizing layer has a thickness based on the type of nonwoven material layer and the melting point of the nonwoven material layer.

[0057] Preferably, the stabilizing layer has a thickness of 0.005 mm to 0.5 mm.

[0058] Preferably, the stabilizing layer is a breathable layer.

[0059] Preferably, the stabilizing layer is a complete layer.

[0060] Preferably, the stabilizing layer is a partial layer.

[0061] Preferably, the stabilizing layer is a frame layer.

[0062] Preferably, the stabilizing layer is a polyurethane (PU) material layer.

[0063] Preferably, the stabilizing layer is a polyethylene (PE) material layer.

[0064] Preferably, the stabilizing layer is a polylactic acid (PLA) material layer.

[0065] Preferably, the stabilizing layer is a fabric adhesive layer.

[0066] Preferably, the joining is performed using a pattern formation method.

[0067] Preferably, the stabilizing material is an adhesive material.

[0068] Preferably, the adhesive material is glue.

[0069] Preferably, the adhesive material is a spray glue or a roll-on glue.

[0070] Preferably, the adhesive material is a polyurethane (PU) adhesive.

[0071] Preferably, the adhesive material is a polyethylene (PE) adhesive.

[0072] Preferably, the adhesive material is a polylactic acid (PLA) adhesive.

[0073] Preferably, the adhesive material is a textile adhesive.

[0074] Preferably, an adhesive substance is applied to the stabilizing material for bonding.

[0075] Preferably, the adhesive substance is glue.

[0076] Preferably, the glue is a spray glue or a roll-on glue.

[0077] Preferably, the adhesive is a polyurethane (PU) adhesive.

[0078] Preferably, the adhesive is a polyethylene (PE) adhesive.

[0079] Preferably, the adhesive is a polylactic acid (PLA) adhesive.

[0080] Preferably, the adhesive is a textile adhesive.

[0081] Preferably, the nonwoven fabric fibers are synthetic polymers, biocomponent fibers, natural fibers, artificial fibers, or a combination thereof.

[0082] Preferably, the synthetic polymer is selected from polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET).

[0083] Preferably, the natural fibers are selected from wood, pulp, cotton, or bamboo.

[0084] Preferably, the artificial fiber is selected from viscose, lyocell, polylactic acid (PLA), or cellulose acetate.

[0085] Preferably, the article is an absorbent article for urinary incontinence (urinary incontinence pouch).

[0086] Preferably, the article is a menstrual fluid article (female hygiene article or menstrual hygiene article).

[0087] Preferably, the article is a menstrual fluid article (female hygiene article or menstrual hygiene article) configured to be positioned near the human genitals for receiving menstrual fluid from the human genital area.

[0088] Preferably, the article is Diapers, Sanitary napkins, Incontinence pads, Incontinence pouch Women's underwear for incontinence, Men's underwear for incontinence, or Breast pads, Mattress pad (preferably a mattress pad for a bed, a mattress pad for a sheet), Baby diaper changing pads, or Baby crib protector It is one of the following.

[0089] In a fourth aspect, the present invention relates to a method for constructing a reusable moisture-retaining article which is an undergarment or for use with an undergarment, which is positioned close to the user's body and absorbs and retains moisture from the user's body, the method being: A step of providing a reusable moisture-absorbing and moisture-retaining insert, wherein at least a portion of the insert is exposed or configured to be exposed so as to define an inner layer of the article, the inner layer is configured to be located close to the user's body to directly absorb and retain moisture from the user's body and faces the user's body to be in physical contact with the user, and the insert comprises at least one inner layer of a nonwoven material which comprises or is in the form of a plurality of nonwoven fibers, The steps include providing an inner layer of a nonwoven material that includes or is in the form of multiple nonwoven fibers, located in the outward direction of the above insert, A step of providing a stabilizing layer formed by a stabilizing material, wherein the stabilizing material is a material configured to be bonded to the nonwoven fabric fibers by an adhesive and / or thermal bonding, The steps include providing an outer cover configured to define the outer layer of the above article, below: The arrangement involves positioning the inner layer, the insert, the stabilizing layer, and the outer cover such that the insert is located between the outer cover and the stabilizing layer, and at least a first portion of the stabilizing layer is located between the inner layer and the insert, wherein at least a second portion of the stabilizing layer is also configured to bond with the outer cover. At least a portion of the innermost layer is bonded to the stabilizing layer by applying heat and / or adhesive bonding. At least a portion of the above insert is bonded to the stabilizing layer by applying heat and / or adhesive bonding, and At least a portion of the outer cover is joined to the second portion of the stabilizing layer by applying heat and / or adhesive bonding. The step of assembling the insert, the inner layer, the stabilizing layer, and the outer cover, wherein the insert is located between the outer cover and the stabilizing layer, and Includes.

[0090] Preferably, the nonwoven fibers are bonded in such a way that the bonded nonwoven fibers do not decompose or substantially decompose when subjected to at least one or more washes or laundering cycles.

[0091] Preferably, the insert includes at least a first inner layer and a second inner layer, wherein the first inner layer is closer to the outer cover than the second inner layer, and the second inner layer is closer to a layer that is inside the second inner layer, and at least the first inner layer includes or is in the form of a plurality of nonwoven fibers.

[0092] Preferably, the second inner layer is a quick-drying knitted fabric layer.

[0093] Preferably, the second inner layer is a quilted stitch to reduce friction.

[0094] Preferably, the method includes bonding at least a portion of the second inner layer to the stabilizing layer by applying heat and / or adhesive bonding.

[0095] Preferably, the innermost layer is positioned outward from the second inner layer.

[0096] Preferably, the thermal bonding involves or includes fusing at least some or all of the nonwoven fibers at a temperature that is interrelated with the melting point of the fibers to be fused and / or the melting point of the stabilizing material.

[0097] Preferably, the thermal bonding is carried out at a temperature of 70°C to 240°C.

[0098] Preferably, the thermal bonding is carried out at a temperature of 100°C to 240°C.

[0099] Preferably, the stabilizing layer is a film or membrane.

[0100] Preferably, the stabilizing layer has a thickness based on the type of nonwoven material layer and the melting point of the nonwoven material layer.

[0101] Preferably, the stabilizing layer has a thickness of 0.005 mm to 0.5 mm.

[0102] Preferably, the stabilizing layer is a breathable layer.

[0103] Preferably, the stabilizing layer is a complete layer.

[0104] Preferably, the stabilizing layer is a partial layer.

[0105] Preferably, the stabilizing layer is a frame layer.

[0106] Preferably, the stabilizing layer is a polyurethane (PU) material layer.

[0107] Preferably, the stabilizing layer is a polyethylene (PE) material layer.

[0108] Preferably, the stabilizing layer is a polylactic acid (PLA) material layer.

[0109] Preferably, the stabilizing layer is a fabric adhesive layer.

[0110] Preferably, the joining is performed using a pattern formation method.

[0111] Preferably, the stabilizing material is an adhesive material.

[0112] Preferably, the adhesive material is glue.

[0113] Preferably, the adhesive material is a spray glue or a roll-on glue.

[0114] Preferably, the adhesive material is a polyurethane (PU) adhesive.

[0115] Preferably, the adhesive material is a polyethylene (PE) adhesive.

[0116] Preferably, the adhesive material is a polylactic acid (PLA) adhesive.

[0117] Preferably, the adhesive material is a textile adhesive.

[0118] Preferably, an adhesive substance is applied to the stabilizing material for bonding.

[0119] Preferably, the adhesive substance is glue.

[0120] Preferably, the glue is a spray glue or a roll-on glue.

[0121] Preferably, the adhesive is a polyurethane (PU) adhesive.

[0122] Preferably, the adhesive is a polyethylene (PE) adhesive.

[0123] Preferably, the adhesive is a polylactic acid (PLA) adhesive.

[0124] Preferably, the adhesive is a textile adhesive.

[0125] Preferably, the nonwoven fabric fibers are synthetic polymers, biocomponent fibers, natural fibers, artificial fibers, or a combination thereof.

[0126] Preferably, the synthetic polymer is selected from polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET).

[0127] Preferably, the natural fibers are selected from wood, pulp, cotton, or bamboo.

[0128] Preferably, the artificial fiber is selected from viscose, lyocell, PLA, or cellulose acetate.

[0129] Preferably, the innermost layer defines a window through which a portion of the second inner layer is exposed or configured to be exposed.

[0130] Preferably, the innermost layer and the stabilizing layer 240 cover only the outer edge of the second inner layer with their surfaces configured to face the user's body.

[0131] Preferably, the inner layer includes a central portion that extends longitudinally from the top edge to the bottom edge of the article.

[0132] Preferably, the innermost layer includes a first wing and a second wing, respectively, located between the upper end and the lower end of the article.

[0133] Preferably, the first wing extends in a first direction from the central portion of the innermost layer, and the second wing extends in a second direction opposite to the first direction from the central portion of the innermost layer.

[0134] Preferably, the window is located in the central part.

[0135] Preferably, the first and second wings of the innermost layer are each provided with fastening members for detachably connecting to the undergarment.

[0136] Preferably, the article includes at least one fastener for detachably connecting to the underwear.

[0137] Preferably, at least one fastener is a hook-and-loop fastener.

[0138] Preferably, the article is an absorbent article for urinary incontinence (urinary incontinence pouch).

[0139] Preferably, the article is a menstrual fluid article (female hygiene article or menstrual hygiene article).

[0140] Preferably, the article is a menstrual fluid article (female hygiene article or menstrual hygiene article) configured to be positioned near the human genitals for receiving menstrual fluid from the human genital area.

[0141] Preferably, the article is Diapers, Sanitary napkins, Incontinence pads, Incontinence pouch Women's underwear for incontinence, Men's underwear for incontinence, Breast pads, Mattress pad (preferably a mattress pad for a bed, a mattress pad for a sheet), Baby diaper changing pads, or Baby crib protector It is one of the following.

[0142] Preferably, the outer cover is formed or assembled to define the outermost layer of the article.

[0143] Preferably, the outer cover 250 is a nonwoven fabric layer.

[0144] Preferably, the method is To provide an outer layer that is configured to be positioned between the outer cover and the insert, The outermost layer is assembled to form part of the article by positioning the outermost layer between the outer cover and the insert, or the first inner layer of the insert. It also includes.

[0145] Preferably, the outermost layer is a bonding layer, and the insert (or first inner layer) and the outer cover are bonded to each other using the outermost layer.

[0146] Preferably, the outermost layer has the same extent as the first inner layer and / or outer cover.

[0147] Preferably, the outermost layer is or contains bonding glue.

[0148] Preferably, the outermost layer is fused with a waterproof fabric.

[0149] Preferably, the outermost layer is a moisture-resistant or leak-proof layer, thereby functioning as a leak-proof barrier.

[0150] Preferably, the method involves applying a moisture-resistant solution to the outer layer.

[0151] Preferably, the outermost layer is coated with a moisture-resistant solution.

[0152] Preferably, the outermost layer is made of the same material(s) as the stabilizing layer 220.

[0153] Preferably, the stabilization layer is a primary stabilization layer, and the outermost layer is a secondary stabilization layer.

[0154] Preferably, the article is positioned near the user's vulva and is configured to receive and absorb moisture from the user's vulva.

[0155] One or more descriptions relating to any of the above embodiments may apply equally to the present embodiment.

[0156] In a fifth aspect, the present invention relates to a reusable moisture-absorbing article manufactured using a method defined in any one or more of the descriptions in the first, third, or fourth aspect.

[0157] One or more descriptions relating to any of the above embodiments may apply equally to the present embodiment.

[0158] In a sixth aspect, the present invention relates to a reusable moisture-absorbing article, the article being: A nonwoven material comprising at least one nonwoven material containing multiple nonwoven fibers or being in the form of multiple nonwoven fibers, At least one stabilizing material and Includes, The above-mentioned stabilizing material is applied to at least some or all of the nonwoven material such that the stabilizing material is applied to at least some or all of the plurality of nonwoven fibers. The above-mentioned stabilizing material is applied to the above-mentioned multiple nonwoven fabric fibers, which are then joined to the stabilizing material by adhesive and / or thermal bonding. This method ensures that at least one nonwoven fabric layer and at least one stabilizing layer are bonded together.

[0159] One or more descriptions relating to any of the above embodiments may apply equally to the present embodiment.

[0160] In a seventh aspect, the present invention relates to underwear, which includes or incorporates an article constructed using any of the methods described above.

[0161] Preferably, underwear refers to undergarments.

[0162] Preferably, the underwear is men's underwear.

[0163] Preferably, the underwear is women's underwear.

[0164] One or more descriptions relating to any of the above embodiments may apply equally to the present embodiment.

[0165] In the foregoing, unless otherwise specified, one or more descriptions relating to one aspect may equally apply to other aspects(s).

[0166] The term "comprises," "includes," or "comprising" is recognized as potentially having either an exclusive or inclusive meaning under various authority. For the purposes of this specification, and unless otherwise specified, the term "comprises" should have an inclusive meaning. That is, it is understood to mean that it includes not only the enumerated components that are directly referenced, but also other components or elements not explicitly mentioned. This basis also applies when the terms "comprises," "includes," or "comprising" are used in relation to an apparatus, or one or more steps in a method or process.

[0167] As used prior to and hereafter in this specification, the terms "and / or" mean "and" or "or," or both.

[0168] As used prior to and hereafter in this specification, “(plural)” following a noun signifies the complex and / or singular form of the noun.

[0169] As used prior to and hereafter in this specification, and unless otherwise specified, the term “liquid” in the context of this specification may include “liquid,” but equally may also include “water.”

[0170] As used prior to and hereafter in this Specification, and unless otherwise specified, the term “moisture-resistant” in the context of this Specification may also include “water-resistant,” “waterproof,” and “leak-proof.”

[0171] As used prior to and hereafter in this Specification, and unless otherwise specified, the term “waterproof” in the context of this Specification may include “waterproof,” but may also include anything that does not allow bodily fluids to pass through.

[0172] As used prior to and hereafter in this Spec, and unless otherwise specified, the term “stabilize” in the context of this Spec. means that nonwoven fibers and / or articles containing such nonwoven fibers are made so that at least some of the nonwoven fibers do not decompose or readily decompose during washing and / or laundering, so that they can be reused after washing and / or laundering. This basis also applies when the term “stabilize” or “stabilize” is used in relation to a layer, fiber, product, or one or more steps in a method or process.

[0173] As used prior to and hereafter in this Specification, and unless otherwise specified, the term “moisture” in the context of this Specification may include any fluid, liquid, and / or moisture expelled from the human body, and may also include menstrual fluid / excrement and / or urine.

[0174] As used prior to and hereafter in this specification, and unless otherwise specified, “compressive stress” in the context of this specification may include compressive stress, but may also include compressive stress applied with heat at a suitable temperature for joining purposes. The same basis applies to “compressive force.”

[0175] As used prior to and hereafter in this Specification, and unless otherwise specified, the word “retain” in the context of this Specification may mean “to retain or continue to contain something,” but it may also be released by evaporation, compression, and squeezing, etc. In the context of this Specification, the word “retain” as distinct from “absorb” may mean “to take a liquid from a surface or the space around it, and / or draw it out.” Unless otherwise specified, this basis also applies to the word (plural) “retaining” and / or “retaining” as used prior to and hereafter in this Specification.

[0176] When used in patent claims, and unless otherwise specified, the phrase “for” should be interpreted simply as “suitable for” and not as “suitable for” or “configured” for a specific purpose.

[0177] Those skilled in the art will know that the term “substantially” can, in some cases, be used to extend a term. In this application, by using the term “substantially” to define a feature (or feature), all benefits that can be derived from using the term “substantially” (i.e., the benefits of any extension) are brought about, and it should be noted that features (or features) for which the term is strictly defined (and not extended) are also included in this scope. For example, if a feature is described / defined in this application as “substantially vertical,” then this feature’s scope includes features that are “near” vertical (to the extent that the term “substantially” is considered to extend the phrase “vertical”), and also includes features that are “strictly” vertical. [Brief explanation of the drawing]

[0178] The present invention will be described below with reference to the drawings, simply as an example.

[0179] [Figure 1A] This is an exploded view showing nonwoven fibers stabilized according to the method of the present invention. [Figure 1B] This is an exploded view showing nonwoven fibers stabilized according to the method of the present invention. [Figure 1C] This is an exploded view showing nonwoven fibers stabilized according to the method of the present invention. [Figure 1D] This is an exploded view showing nonwoven fibers stabilized according to the method of the present invention. [Figure 2A] This is an external view of an article in an assembled form, according to a first embodiment of the present invention. [Figure 2B] This is an internal view of the assembled product shown in Figure 2A. [Figure 2C] This is an exploded view of the item shown in Figure 2A. [Figure 3A] This is an external view of an article in an assembled form, according to a second embodiment of the present invention. [Figure 3B] This is an internal view of the assembled product shown in Figure 3A. [Figure 3C] This is an exploded view of the item shown in Figure 3A. [Figure 4A] This is an external view of an article in an assembled form, according to a third embodiment of the present invention. [Figure 4B] This is an internal view of the assembled item shown in Figure 4A. [Figure 4C] This is an exploded view of the item shown in Figure 4A. [Figure 5A] This is an external view of an assembled article according to a fourth embodiment of the present invention. [Figure 5B] This is an internal view of the assembled product shown in Figure 5A. [Figure 5C] This is an exploded view of the item shown in Figure 5A. [Figure 6A] This is an internal view of an article in an assembled form, according to a fifth embodiment of the present invention. [Figure 6B] This is an external view of the assembled product shown in Figure 6A. [Figure 6C] This is an exploded view of the item shown in Figure 6A. [Figure 7A] This is an internal view of an article in an assembled form, according to a sixth embodiment of the present invention. [Figure 7B] This is an external view of the assembled article shown in Figure 7A. [Figure 7C] This is an exploded view of the item shown in Figure 7A. [Figure 8A] This shows a front view of women's underwear, including an article according to the seventh embodiment of the present invention. [Figure 8B] Figure 8A shows a rear view of women's underwear. [Figure 8C] This is an internal view of an article in an assembled form, according to the seventh embodiment of the present invention. [Figure 8D] This is an exploded view of the item shown in Figure 8A. [Figure 9A]This shows a front view of men's underwear, including an article according to the eighth embodiment of the present invention. [Figure 9B] Figure 9A shows a rear view of men's underwear. [Figure 9C] Figure 9A shows a flattened inner view of the men's underwear. [Figure 9D] This is an exploded view of the men's underwear item and the item shown in Figure 9A. [Figure 10A] An exploded view of an article according to the ninth embodiment of the present invention is shown. [Figure 11A] An exploded view of an article according to the tenth embodiment of the present invention is shown. [Figure 11B] This is an assembly drawing of the item shown in Figure 11A. [Modes for carrying out the invention]

[0180] Detailed explanation The present invention provides a reusable moisture-absorbing article that is washable and preferably printable, designed to be non-abrasion-resistant and dimensionally stable. The article is made using a stabilizing material that otherwise has high absorbency and rapid wicking and moisture-retaining capabilities, by stabilizing a nonwoven fabric material. This makes the article ideal for absorbing bodily discharges such as menstrual fluid and urinary incontinence.

[0181] Referring here to the attached drawings, Figures 1A to 1D show a nonwoven material 110 that can be stabilized using a stabilizing material 120 according to the claimed invention. The nonwoven material 110 comprises or is in the form of a plurality of nonwoven fibers. The stabilizing material 120 is applied to at least a portion or all of the nonwoven material 110. The nonwoven fibers 110 to which the stabilizing material 120 has been applied are then bonded to the stabilizing material 120 by adhesive and / or thermal bonding. Such bonding stabilizes at least a portion or all of the nonwoven material 110. Non-limiting examples of possible nonwoven fibers include synthetic polymers (not limited to polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), etc.), biocomponent fibers, natural fibers (e.g., wood pulp, cotton, bamboo, etc.), artificial fibers (e.g., viscose, lyocell, PLA, cellulose acetate), or combinations thereof.

[0182] As shown, the nonwoven material 110 may be a nonwoven material layer. Therefore, the same reference number 110 is used to refer to both the nonwoven material and the nonwoven layer. The nonwoven material 110 may be a nonwoven fabric, a nonwoven cloth, or a nonwoven fabric.

[0183] The thermal bonding process may include fusing at least some or all of the nonwoven fibers at a temperature interrelated with the melting point of the fibers to be fused / bonded and / or the melting point of the stabilizing material. In this way, the fibers and / or the stabilizing material are meltable, and by melting, the fibers can bond / fuse together to form a nonwoven material with a stable structure. The melting and fusing of the fibers during thermal bonding converts even these portions of the nonwoven fibers not covered by the stabilizing layer into a stable structure. A stable structure means that the bonded nonwoven fibers are fused or bonded so that they do not decompose or easily decompose during washing or laundering, making the nonwoven fibers reusable even after washing or laundering. Thermal bonding is most preferably carried out at a temperature of 70°C to 240°C. This temperature range corresponds to the melting point of the nonwoven material 110 for most, if not all, possible types of fibers. In some embodiments, thermal bonding may be carried out in a temperature range of 100°C to 240°C.

[0184] As shown in the figure, the stabilizing material 120 can be formed as a stabilizing layer. Therefore, the same reference number 120 is used to refer to both the stabilizing material and the stabilizing layer. The stabilizing layer 120 may be a membrane or a film. The stabilizing layer 120 may have a thickness based on the type of nonwoven material and the melting point of the nonwoven material. The stabilizing layer 120 may have a thickness of 0.005 mm to 0.5 mm. The stabilizing layer 120 may be a breathable layer. The stabilizing layer 120 may be a complete layer (i.e., completely covering the nonwoven layer), a partial layer (i.e., completely covering the nonwoven layer), or a framed layer (i.e., having a window portion 121 that does not cover the nonwoven layer). Figure 1A shows an example where the stabilizing layer 120 is a complete layer configured to completely cover the nonwoven layer 110. Figure 1B shows an example where the stabilizing layer 110 is a framed layer configured to cover the nonwoven layer held by the window portion 121. In the example shown in Figure 1B, the stabilizing layer 121 covers the outer edge of the nonwoven fabric layer 110 or the nonwoven fabric layer near its outer edge. The stabilizing layer 120 may be a polyurethane (PU) material layer. However, the stabilizing layer 120 may be a polyethylene (PE) material layer, a polylactic acid (PLA) material layer, or many other suitable fabric-adhesive material layers.

[0185] The joining can be performed using a pattern formation method.

[0186] The nonwoven fabric layer 110 and / or stabilizing layer 120 may be of any preferred shape or size.

[0187] The stabilizing material may be an adhesive material, preferably a glue (e.g., a spray glue or roll-on glue), or a polyurethane (PU) adhesive. However, the stabilizing material may also be a polyethylene (PE) adhesive, a polylactic acid (PLA) adhesive, or many other suitable textile adhesives.

[0188] In one example where bonding is solely by adhesive bonding, the nonwoven fiber material 110 can be stabilized by bonding to a stabilizing material using a spray or roll-on adhesive glue.

[0189] Similarly, in an example where bonding is solely by thermal bonding, a polyurethane (PU) adhesive 123, or a similar material (e.g., polyethylene (PE) adhesive, polylactic acid (PLA) adhesive, or other suitable textile adhesive material layer), may be applied to the stabilizing layer 120 and fused to the nonwoven layer 110 by heat. More specifically, the nonwoven fibers of the nonwoven layer 120 can be stabilized by thermal bonding (thermobonding) at a high temperature in the range of 70°C to 240°C, fusing the nonwoven fibers to the stabilizing material 120 completely, partially, or with frame permeability. The polyurethane (PU) film may have various thicknesses, preferably in the range of 0.005 mm to 0.5 mm, depending on the type of nonwoven and the melting point of the fibers of the nonwoven material 110. Instead of the polyurethane film, a polyethylene (PE) film, a polylactic acid (PLA) film, or other suitable textile adhesive material film can be used.

[0190] Using polyurethane (PU), polyethylene (PE), or polylactic acid (PLA) in the stabilizing layer 120 and / or as an adhesive is advantageous because it enables the manufacture of sanitary / hygienic products containing nonwoven materials that are washable and reusable. Similarly, this enables the manufacture of sanitary / hygienic products containing any number of nonwoven materials, as well as knitted or woven materials, or combinations thereof, that are washable and reusable. Many other suitable textile adhesives, or materials that provide the same or similar functionality, can be used in the stabilizing layer 120 to provide the same or similar advantages as polyurethane (PU), polyethylene (PE), or polylactic acid (PLA).

[0191] Adding knitted or woven layers is optional but can be advantageous in further increasing and controlling the stability of the nonwoven fibers, increasing the number of reusables before the nonwoven fibers decompose, or allowing for washing or cleaning.

[0192] Using the method described above, a reusable moisture-absorbing article can be constructed / manufactured, which is an undergarment or intended for use with an undergarment, for placement close to the user's body and for absorbing (and preferably also retaining) moisture from the user's body. Some non-limiting examples of such articles are diapers, sanitary napkins, incontinence pads, incontinence pouches, incontinence underwear for women, incontinence underwear for men, breast pads, etc. Thus, a reusable moisture-retaining article can be a reusable sanitary article.

[0193] Such articles may include the nonwoven material 110 described above and an inner layer which may be the same as the stabilizing material 120 described above that forms the stabilizing layer. The stabilizing material 120 may be applied to at least part or all of the inner layer such that the stabilizing material is applied to at least some or all of the nonwoven fibers.

[0194] Next, the nonwoven fabric fibers 110 to which the stabilizing material 120 has been applied are bonded to the stabilizing material 120 by adhesive and / or heat bonding, thereby stabilizing at least part or all of the nonwoven fabric material and forming a reusable moisture-absorbing article 100.

[0195] In some embodiments, the stabilizing material / layer 120 is moisture-resistant or leak-proof. [Examples]

[0196] Example 1 Examples of reusable articles are shown in Figures 2A and 2C. Figure 2A shows an external view of a reusable moisture-absorbing article 200 according to the present invention. Figure 2B shows an internal view of the article in Figure 2A. Figure 2C shows exploded views of the articles in Figures 2A and 2B.

[0197] Article 200 is an undergarment, or intended for use with an undergarment, that is positioned close to the user's body and receives moisture from the user's body. The user may be the person wearing the article. Article 200 may be used as a menstrual fluid absorbent article (also called a “female hygiene article,” “menstrual hygiene article,” “sanitary napkin,” “female liner,” or “menstrual pad”). Article 200 may also be suitable for absorbing any other moisture from the user’s body. Article 200 may also be suitable for absorbing moisture during light to moderate incontinence and therefore may be used as an incontinence pad.

[0198] Article 200 includes a nonwoven fabric layer in the form of an inner layer 210 (first inner layer 210) for moisture absorption. The nonwoven fabric layer may be identical to the nonwoven fabric layer 110 described above, and therefore there is no need to describe its details again.

[0199] Article 200 includes a second inner layer 230 and a stabilizing layer 240. The stabilizing layer 240 may be identical or similar to the stabilizing layer 120 or stabilizing material 120 described above, and therefore no further detail is needed. As shown in Figure 2B, at least a portion 232 of the second inner layer 230 is exposed and defines the inner region of Article 200. The inner region of the article is configured to be located close to the user's body and faces the user's body to be in physical contact with the user and to directly receive moisture from the user's body.

[0200] Part 232 may optionally be covered with a removable material, such as a removable film or similar, which would expose part 232 when such removable material is removed. This helps prevent contamination of part 232, which is an inner layer of an article configured to come into physical contact with the user.

[0201] Article 200 includes the multilayer shown in Figure 2C. These multilayers comprise at least an outermost layer 250 (may also be called an outer cover 250), an outermore layer 220 (may also be called an outer more layer 220), an insert including a first inner layer 210 and a second inner layer 230, and a stabilizing layer 240. An inner more layer 260 (may also be called an innermore layer 260) is also present. These layers are assembled together to form article 200. As described above, the first inner layer 210 is a nonwoven fabric layer (preferably the same as the nonwoven fabric layer 110 described above). This functions as the inner nonwoven core of article 200. The thickness (gsm) of this first inner layer 210 may depend on the required absorbency.

[0202] When assembled within the layers, at least a portion 232 of the second inner layer is exposed or configured to be exposed in a manner that defines the inner layer of the article. The inner layer (i.e., the exposed or configured to be exposed portion) is configured to be located close to the user's body, to be in physical contact with the user, and to directly absorb moisture from the user's body. When the article 200 is used as a menstrual fluid and / or urine absorbent article, the moisture from the user's body absorbed through the exposed portion 232 of the insert 232 is menstrual fluid / menstrual discharge and / or urine.

[0203] At least some of the moisture absorbed from the second inner layer 230 can be transferred to the first inner layer 210. Having at least two inner layers 210, 230 improves the lifespan of the article 200. More specifically, having the second inner layer 230 makes it possible to increase and control the stability of the nonwoven fibers of the first inner layer 210, allowing for more repeated use or washing before the nonwoven fibers gradually decompose. Having two inner layers therefore helps improve the lifespan of the article 200. Optionally, more than two inner layers may be present.

[0204] As shown in Figure 2C, the innermost layer 260 may be positioned outward from the second inner layer 230. At least a portion of the stabilizing layer 240 may be positioned between the second inner layer 230 and the innermost layer 260, or sandwiched between them. More specifically, at least a portion of the stabilizing layer 240 may be positioned between the surface of the second inner layer 230 configured to face the innermost layer 260 and the surface of the innermost layer 260 configured to face the second inner layer 230, or sandwiched between them, thereby interconnecting the second inner layer 230 and the innermost layer 260.

[0205] The stabilizing layer 240 may be identical or similar to the stabilizing layer 120 described above in terms of both structural material and functionality.

[0206] The innermost layer 260 may be the innermost layer of article 200. The innermost layer 260 may be a nonwoven layer or a nonwoven fabric. Thus, in terms of structure, the innermost layer 260 may be similar to the nonwoven layer 110 described above. The nonwoven fibers of the innermost layer 260 may be stabilized using the stabilizing layer 240 in the same or similar manner as described above, referring to Figures 1A to 1D. The innermost layer 260 may have the same shape and size as the stabilizing layer 240.

[0207] The second inner layer 230 and the innermost layer 260 can be joined to each other (for example, by adhesive and / or thermal bonding). Such joining can be facilitated by applying compressive force (i.e., compressive stress) to the article 200. This significantly reduces the manufacturing process and cost by eliminating, or at least reducing, sewing and / or other complex processes required to join the layers to each other. It should also be noted that a combined machine for such joining techniques is necessary to manufacture the article 200.

[0208] Returning to the embodiment in Figure 2C, the inner layer 260 may define a window 265 through which a portion 232 of the second inner layer 230 is exposed or configured to be exposed. As shown, substantial portions of the second inner layer are exposed or configured to be exposed, forming the inner layer of the article 200. In the illustrated embodiment, the entire inner layer 230 is exposed or configured to be exposed, forming the inner layer of the article 200, excluding the edges. Thus, on its surface configured to face the user's body, only the edges or outer perimeters of the second inner layer 230 may be not exposed or configured to be not exposed. The inner layer 260 and the stabilizing layer 240 may cover only the outer perimeters of the second inner layer 230 on their surfaces configured to face the user's body. If the second inner layer 230 is a nonwoven fabric, the nonwoven fibers of the second inner layer 230 may still be stabilized using the stabilizing layer 240, as well as by adhesive and / or thermal bonding in the manner described above, with reference to Figures 1A-1D.

[0209] The innermost layer 260 may include a central portion 261 that extends longitudinally from the upper end 204 to the lower end 206 of the article 200. The innermost layer 260 may include a first wing 262 and a second wing 263, located between the upper end 204 and the lower end 206 of the article 200, respectively. The first wing 262 may extend in a first direction from the central portion 261 of the innermost layer 260, and the second wing 263 may extend in a second direction opposite to the first direction from the central portion 261 of the innermost layer 260. A window 265 may be located in the central portion.

[0210] In possible embodiments where the second inner layer 230 is absent, the stabilizing layer 240 may be directly sandwiched between the first inner layer 210 and the innermost layer 260, in the same or similar manner as it would otherwise be sandwiched between the second inner layer 230 and the innermost layer 260. In such a case, a portion of the first inner layer 210 would be exposed, similar to the embodiment in which a portion 232 of the second inner layer is exposed, thereby making the exposed portion of the first inner layer the innermost layer of the article 200. In such a case, the nonwoven fibers of the first inner layer 210 may still be stabilized using the stabilizing layer 240, and also by adhesive and / or thermal bonding in the same or similar manner as described above with reference to Figures 1A-1D.

[0211] The outer cover 250 is formed or assembled to define the outermost layer of the article.

[0212] The outermost layer 220 is positioned between or sandwiched between the first inner layer 210 and the outer cover 250, thereby interconnecting the first inner layer 210 and the outer cover 250. More specifically, the outermost layer 220 is positioned between or sandwiched between the surface of the first inner layer 210 configured to face the outer cover 250 and the surface of the outer cover 250 configured to face the first inner layer, thereby interconnecting the first inner layer 210 and the outer cover 250.

[0213] The stabilizing layer 240 can be bonded to at least the second inner layer 240, the innermost layer 260, and the outer cover 250.

[0214] In this embodiment, the first inner layer 210 is sandwiched between the other layers shown in Figure 2C, so that the fibers of the nonwoven layer do not easily decompose during washing and / or laundering. The stabilizing layer 240 can also bond to all the layers. For example, the outermost layer 220, the first inner layer 210, and the second inner layer 230 may have different sizes or shapes, so that the stabilizing layer 240 can reliably bond to one or more or all of these layers.

[0215] In some embodiments, the outermost layer 220 may be a bonding layer, so the first inner layer 210 and the outer cover 250 are joined to each other using the outermost layer 220. The first inner layer 210 and the outer cover 250 may be joined to each other by adhesive and / or thermal bonding. Applying compressive force (i.e., compressive stress) can facilitate such joining. This significantly reduces the manufacturing process and cost by eliminating, or at least reducing, sewing and / or other complex processes for joining the layers to each other. It should also be noted that a combined machine of such joining techniques is required to manufacture the article 200.

[0216] The outermost layer 220 may have the same extent as the first inner layer 210 and / or the outer cover 250. The outermost layer 220 may be or contain bonding glue. In some embodiments, the outermost layer 220 may be fused with a waterproof fabric. The outermost layer 220 may be a moisture-resistant or leak-proof layer, thereby functioning as a leak-proof barrier. In some embodiments, a moisture-resistant solution is applied to the outermost layer 220. The outermost layer 220 may be coated with a moisture-resistant solution. By functioning as a leak-proof or moisture-resistant barrier, the outermost layer provides leak-proof performance of the article 200, thereby providing ultimate protection to the user. More specifically, this helps prevent any moisture absorbed by the first inner layer 210 from leaking into the outer cover 250.

[0217] In some embodiments, the outermost layer 220 may also be made of the same material as the stabilizing layer 240, in which case the stabilizing layer 240 is the primary stabilizing layer and the outermost layer 220 is the secondary stabilizing layer. Since the first inner layer 210 is a nonwoven fabric layer, such a secondary stabilizing layer can further stabilize the nonwoven fabric fibers of the first inner layer 210. Such further stabilization can be achieved in the same or similar manner as described above, with reference to Figures 1A-1D.

[0218] Article 200 may be positioned near the user's vulva and configured to receive and absorb moisture from the user's vulva. Article 200 may be for receiving or absorbing urinary incontinence, or may also be used for these purposes. The received and absorbed moisture may optionally be retained by Article 200.

[0219] The outer cover 250 is most preferably a nonwoven fabric layer. In such a case, the nonwoven fabric fibers of the outer cover 250 can still be stabilized by adhesive and / or thermal bonding as described above, with reference to Figures 1A-1D. At least a portion of the outer cover can be stabilized in the same or similar manner as described above, with reference to Figures 1A-1D, using a portion of the stabilizing layer 240 configured to bond with the outermost layer. Similarly, if the outermost layer 220 is a secondary / second stabilizing layer (as described above), in such a case the nonwoven fabric fibers of the first inner layer 210 and the outer layer 250 are further stabilized by the outermost layer 220 in the same or similar manner as described above, with reference to Figures 1A-1D. Stabilization of the fibers of the outer cover can also be induced in the same or similar manner as already described above, with reference to Figures 1A-1D, by melting the nonwoven fabric fibers of the outer cover 250 during thermal bonding.

[0220] As previously described, the first inner layer 210 is a nonwoven fabric layer. However, the second inner layer 230 may be a nonwoven, woven, or knitted moisture-absorbing layer. In some embodiments, the second inner layer 230 may be a moisture-retaining fabric assembly described in PCT Publication WO2020121176A1, the entire contents of which are incorporated herein by reference.

[0221] The first wing 262 and the second wing 263 of the innermost layer 260 may each include a fastener(s) 267 (e.g., buttons / snap domes / poppers, hook-and-loop fasteners, or Velcro® fasteners) for detachable connection to underwear or other undergarments. For example, the fasteners on the first and second wings may be connected to a loop that surrounds the crotch of the underwear and detachably connects to the underwear. Alternatively, the underwear may have a fastener(s) suitable for connection to the fastener(s) 267.

[0222] The outer cover 250 and the inner layer 260 may be identical in shape and / or size, but the inner layer 260 has a window 265 in its central portion, whereas the outer cover 250 does not have such a window. Thus, the outer cover 250 may include a central portion 251 that extends longitudinally from the upper end 204 of the article to the lower end 206 of the article 200. The outer cover 250 may include a first wing 252 and a second wing 253, respectively, located between the upper end 204 and the lower end 206 of the article 200. The first wing 252 may extend in a first direction from the central portion 251 of the outer cover 250, and the second wing 253 may extend in a second direction opposite to the first direction from the central portion 251 of the outer layer 250.

[0223] Furthermore, or alternatively, the outer cover 250 may include similar fastening members 268 (e.g., buttons / snap domes / poppers / hook-and-loop fasteners, or Velcro® fasteners) for detachably connecting to underwear or other undergarments. If both the outer cover and the innermost layer include fasteners, fasteners 267 and 268 may be suitable for connecting to each other. Alternatively, the undergarment may have fasteners(s) suitable for connecting to fastener(s) 268.

[0224] The outer cover 250 and the inner layer 260 may extend longitudinally from the upper end 204 to the lower end 206 of the article 200. The first and second inner layers 210, 230 and the outer layer 220 may each be smaller than the central portion 251 of the outer cover 250 and / or the central portion 261 of the inner layer 260. In some embodiments, the first and second inner layers 210, 230 and the outer layer 220 may each be the same size as the central portion 251 of the outer cover 250 and / or the central portion 261 of the inner layer 260. In some embodiments, the outer layer 220 is larger (preferably slightly larger) than the first and second inner layers 210 and 230. Such a configuration allows the stabilizing layer 240 to seal and / or bond with the outer layer, or at least to be in direct contact with the outer layer. The different dimensions / sizes and / or shapes of the layers allow the stabilizing layers to be in direct contact with and / or to seal and / or bond to the corresponding layers. In some embodiments, all layers 250, 220, 210, 230, 240, and 260 may extend longitudinally from the upper end 204 of the article 200 to the lower end 206 of the article 200.

[0225] In one embodiment, the article 200 may be elongated in shape, having longitudinal layers extending from an upper end 204 and a lower end 206, respectively, and having no wings. Such an article may optionally include straps or similar fastening means for detachably connecting to underwear.

[0226] In one embodiment, the outer cover 250 may be optional, or may be optional. However, as already described above, it is most preferable to have an outer cover due to the advantageous features of the outer cover 250.

[0227] The adhesive and / or thermal bonding of the layers of article 200 may be performed using the same method as described above with reference to Figures 1A to 1D. Similarly, the fibers of the nonwoven layer(s) of article 200 are stabilized by the stabilizing layer in the same manner as already described above and also with reference to Figures 1A to 1D, and therefore do not need to be described again.

[0228] Example 2 Figures 3A to 3C show article 300 according to another preferred embodiment of the present invention.

[0229] Article 300 is an undergarment, or intended for use with an undergarment, positioned close to the user's body and for receiving moisture from the user's body. The user may be the person wearing the article. Article 300 may be used as a urinary incontinence absorbent and insertable article (also called a “male shield” or “male guard,” or a “male pouch” or “incontinence pouch”). Article 300 may also be suitable for absorbing any other moisture from the user's body. In some embodiments, the article is a female incontinence article configured to be positioned close to a person’s genitals for receiving menstrual fluid or other fluids (including urine) from the person’s genital area.

[0230] Article 300 of this embodiment is similar in many respects to Article 200 described above, and the differences can be seen by comparing Figures 2A and 3A, 2B and 3B, and 2C and 3C. In the drawings relating to Article 300, features similar to those shown in the drawings relating to Article 200 are indicated by the same reference numeral plus 100. Since most of the description of Article 200 relating to the preferred embodiment above applies equally to Article 300, there is no need to repeat too many details. The main differences will be described only as necessary.

[0231] One of the main differences lies in the shape of the layers, all of which are appropriately shaped to function as absorbent and insertable articles for urinary incontinence.

[0232] The innermost layer 360 is in the form of a strip. The stabilizing layer 340 is also in the form of a strip. The stabilizing layer 340 may be an adhesive frame or a stabilized adhesive frame. The stabilizing layer 340 may be placed between the second inner layer 330 and the innermost layer 360, or sandwiched between them. Similarly, the outermost layer 320 may be placed between the first inner layer 310 and the outer cover 350, or sandwiched between them.

[0233] The innermost layer 360 may be made from the same fabric as the outer cover 350. The innermost layer, and / or the outer cover 350, may be made from a nonwoven fabric or nonwoven material having multiple nonwoven fibers. Such nonwoven fibers are stabilized using adhesives and / or thermal bonding in the same or similar manner as already described above.

[0234] The first and second inner layers 310, 330 may be the same as or of the same type as those already described above with respect to article 200. Similarly, the outermost layer 320 may also be a stabilizing layer (secondary stabilizing layer) similar to that in Example 1. Any layer described as optional in article 200 above may also be optional in article 300.

[0235] In some embodiments, the outer cover 350 may be optional, already provided with stitches that give the outer cover 350 a specific shape. In such cases, a stitch-bonding adhesive layer 354 may be optionally provided and extended along such stitches to conceal them for excessive protection. The stitch-bonding adhesive layer 354 may be a stitch-bonding glue seal or strip, may be a heat-fused adhesive strip, or may function as a heat-fused adhesive strip. The stitch-bonding adhesive layer 354 may be manufactured from the same material as the first stabilizing layer 320. It should be noted that stitches may not be present on the outer cover 350, and the shape of the article 300 may be created using alternative methods for stitches (e.g., pleats). However, where present, these are pre-formed stitches, configured to bond multiple layers to each other. The multilayers may be joined by applying adhesive and / or heat bonding, preferably by applying the compressive stresses described above. Heat melting or ultrasonic melting seams are more preferred for the stitches.

[0236] Aside from the differences mentioned above and those clearly evident from the drawings, all other characteristics of article 300, including the properties of its various layers, may be the same as those described above with respect to article 200.

[0237] Example 3 Figures 4A to 4C show article 400 according to another preferred embodiment of the present invention. Article 400 in this embodiment is a baby diaper or training pants.

[0238] Article 400 is an undergarment, or an item to be used in conjunction with an undergarment, which is positioned close to the user's body and is designed to receive moisture from the user's body. The user may be the person wearing the article.

[0239] Article 400 of this embodiment is similar in many respects to Article 200 described above, and the differences can be seen by comparing Figures 2A and 4A, 2B and 4B, and 2C and 4C. In the drawings relating to Article 400, features similar to those shown in the drawings relating to Article 200 are indicated by the same reference numeral plus 200. Since most of the description of Article 200 relating to the preferred embodiment above applies equally to Article 400, there is no need to repeat too many details. The main differences will be described only as necessary.

[0240] One of the main differences lies in the shape of the layers, all of which are appropriately shaped to allow item 400 to function as a diaper.

[0241] Another key difference is the presence of additional layers, namely a bonding layer 470 and an innermost layer 480 (which may also be called the innermost layer). The innermost layer may be in the form of protective strips 480A, 480B, which are leak-proof strips. Strips 480A, 480B may be nonwoven or knitted. The bonding layer 470 may also be in the form of strips 470A, 470B. The bonding layer 470 may be placed between the innermost layer 460 and the innermost layer 480, or sandwiched between them, thereby bonding the innermost layer 460 and the innermost layer 480. This bonding may be by thermal and / or adhesive bonding, which is applied in the same or similar manner as already described above. In some embodiments, the outermost layer 420 may also be a stabilizing layer (secondary stabilizing layer) similar to that in Example 1. In some embodiments, the bonding layer 470 may be made of the same material as the stabilizing layer 440 and the outermost layer 420, in which case each of the three layers 420, 440, and 480 may function as a stabilizing layer for stabilizing any nonwoven fibers bonded to these layers in the same or similar manner as described above with reference to 1A to 1D.

[0242] The innermost layer 460 may be made from the same fabric as the outer cover 450. The innermost layer 460, and / or the outer cover 450, may be made from a nonwoven fabric or nonwoven material having multiple nonwoven fibers. Such nonwoven fibers are stabilized by adhesive and / or thermal bonding in the same or similar manner as already described above.

[0243] Similar to the outermost layer 220, the outermost layer 420 may be moisture-resistant. In some embodiments, a moisture-resistant solution is applied to the outermost layer 420. The outermost layer 420 may be coated with a moisture-resistant solution.

[0244] The first and second inner layers 410, 430 may be the same as or of the same type as those already described above with respect to article 200. The outer layer 420 and the bonding layer 470 may be made of the same or the same material as the stabilizing layer 440. The stabilizing layer 440 may be made of the same material as the stabilizing layer 240 described above with respect to article 200. Layers described as optional in article 200 may also be optional in article 400.

[0245] The innermost layer 480 may include a fastener(s) 467. Similarly, the outer layer 460 may also include a fastener(s) 468. The fasteners(s) 467, 468 may enable a removable connection to the underwear in a manner similar to that described above for article 200. The fastener(s) in this embodiment are most preferably Velcro® (also known as hook-and-loop fasteners). However, many other alternative fasteners are possible, but are not limited to buttons, snap domes / poppers, etc.

[0246] Aside from the differences mentioned above and those clearly evident from the drawings, all other characteristics of article 400, including the properties of its various layers, may be the same as those described above with respect to article 200.

[0247] Example 4 Figures 5A to 5C show article 500 according to another preferred embodiment of the present invention.

[0248] Article 500 is a garment or for use with a garment that is arranged near the user's body and receives moisture from the user's body. The user can be the person wearing the article. Article 500 can be used as a menstrual fluid absorption article (also referred to as a "feminine hygiene article", or "menstrual hygiene article", "feminine liner", or "menstrual pad"). Article 500 can also be suitable for absorbing any other moisture from the user's body.

[0249] Article 500 is designed for moderate to severe incontinence.

[0250] Article 500 of this embodiment is similar to the above-described article 200 in many respects, and the differences can be confirmed by comparing FIGS. 2A and 5A, FIGS. 2B and 5B, and FIGS. 2C and 5C. In the drawings related to article 500, features similar to those shown in the drawings related to article 200 are denoted by reference numerals with 300 added thereto. Most of the descriptions of article 200 regarding the above preferred embodiments are equally applicable to article 500, so there is no need to describe too many details again. Only the main differences will be explained as necessary.

[0251] One of the main differences lies in the shape of the layers, and these layers are more appropriately shaped to enable the use of article 500 in situations where incontinence is moderate to severe. However, the outermost layer 520 can be in many other suitable shapes.

[0252] Another main difference is the presence of additional layers, namely, the bonding layer 570, and the innermost layer 580 (which may also be referred to as the innermost layer). The innermost layer 580 is in the form of protective strips 580A, 580B which are leakage prevention strips. The strips 580A, 580B can be non-woven fabric or can be knitted. The bonding layer 570 is also in the form of strips 570A, 570B. The bonding layer 570 can be disposed between the more inner layer 560 and the innermost layer 580 or can be sandwiched between them, thereby joining the more inner layer 560 and the innermost layer 580. This joining can be by heat and / or adhesive bonding which is applied in the same or similar manner as already described above. In some embodiments, the more outer layer 520 can also be a stabilizing layer (secondary stabilizing layer) similar to that in Example 1. In some embodiments, the bonding layer 570 can be made of the same material as the stabilizing layer 540 and the more outer layer 520, in which case each of the three layers 520, 540, and 570 can function as a stabilizing layer for stabilizing any non-woven fibers joined to these layers in the same manner as described above with reference to 1A to 1D. <00***906><00***907><00***908>Similar to the more outer layer 220, the more outer layer 520 can be moisture resistant. In some embodiments, a moisture resistant solution is applied to the more outer layer 520. The more outer layer 520 can be coated with a moisture resistant solution. <00***909><00***910><00***911>The more inner layer 560 can be manufactured from the same fabric as the outer cover 550. The more inner layer 560, and / or the outer cover 550 can be manufactured from a non-woven fabric or non-woven material having a plurality of non-woven fibers. Such non-woven fibers are stabilized by adhesive and / or heat bonding in the same or similar manner as already described above. <00***912><00***913><00***914>The first and second inner layers 510, 530 may be the same as or of the same type as those already described above with respect to article 200. The outer layer 520 and the bonding layer 570 may be made of the same or the same material as the stabilizing layer 540. The stabilizing layer 540 may be made of the same material as the stabilizing layer 240 described above with respect to article 200. Layers described as optional in article 200 may also be optional in article 500.

[0256] The innermost layer 580 may include a fastener(s) 567. Similarly, the outer layer 560 may also include a fastener(s) 568. The fasteners(s) 567, 568 may enable a removable connection to the underwear in a manner similar to that described above in article 200. The fastener(s) in this embodiment are most preferably Velcro® (also known as hook-and-loop fasteners). However, many other alternative fasteners are possible, but are not limited to buttons, snap domes / poppers, etc.

[0257] Aside from the differences mentioned above and those clearly evident from the drawings, all other characteristics of article 500, including the properties of its various layers, may be the same as those described above with respect to article 200.

[0258] Example 5 Figures 6A to 6C show article 600 according to another preferred embodiment of the present invention.

[0259] Article 600 is an undergarment, or intended for use with an undergarment, positioned close to the user's body and for receiving moisture from the user's body. The user may be the person wearing the article. Article 600 may be used as a urinary incontinence absorbent and insert article (also called a “male shield” or “male guard,” or a “male pouch” or “incontinence pouch”). Its purpose is the same as that of Article 300 in Embodiment 2 described above, except that Article 600 is designed for severe incontinence. Article 600 may also be suitable for absorbing any other moisture from the user's body. In some embodiments, Article 600 is a female incontinence article configured to be positioned close to a person’s genitals to receive menstrual fluid or other fluids (including urine) from the person’s genital area.

[0260] Article 600 of this embodiment is similar in many respects to Article 300 or Article 200 described above, and the differences can be seen by comparing Figure 2A or Figure 3A with Figure 6B, Figure 2B or Figure 3B with Figure 6A, and Figure 2C or Figure 3C with Figure 6C. In the drawings relating to Article 600, features similar to those shown in the drawings relating to Article 200 are indicated by the same reference numeral plus 400. Similarly, features of Article 600 similar to those shown in the drawings relating to Article 300 are indicated by the same reference numeral plus 300. Since most of the descriptions of Article 200 or 300 relating to the preferred embodiments above apply equally to Article 600, there is no need to repeat too many details. Only the main differences will be described.

[0261] One of the main differences lies in the shape of the layers, all of which are appropriately shaped to function as an absorbent material for urinary incontinence in severe incontinence conditions.

[0262] Another key difference is the presence of additional layers, namely a bonding layer 670 and an innermost layer 680 (which may also be called the innermost layer). The innermost layer 680 is a leak-proof strip, in the form of protective strips 680A, 680B, 680C, and 680D. Strips 680A, 680B, 680C, and 680D may be nonwoven or woven. The bonding layer 670 is also in the form of strips 670A and 670B. The bonding layer 670 may be placed between the innermost layer 660 and the innermost layer 680, or sandwiched between them, thereby bonding the innermost layer 660 and the innermost layer 680. This bonding may be by thermal and / or adhesive bonding, as already described above. In some embodiments, the outermost layer 620 may also be a stabilizing layer (secondary stabilizing layer) similar to that in Example 1. In some embodiments, the bonding layer 670 may be made of the same material as the stabilizing layer 640 and the outermost layer 620, in which case each of the three layers 620, 540, and 670 may function as a stabilizing layer for stabilizing any nonwoven fibers bonded to these layers in the same or similar manner as described above with reference to 1A to 1D.

[0263] The innermost layer 660 may be made from the same fabric as the outer cover 650. The innermost layer 660, and / or the outer cover 650, may be made from a nonwoven fabric or nonwoven material having multiple nonwoven fibers. Such nonwoven fibers are stabilized by adhesives and / or thermal bonding in the same or similar manner as already described above.

[0264] Similar to the outermost layer 220, the outermost layer 620 may be moisture-resistant. In some embodiments, a moisture-resistant solution is applied to the outermost layer 620. The outermost layer 620 may be coated with a moisture-resistant solution.

[0265] Another difference is that the stabilizing layer 640 has the form of multiple strips 640A, 640B, 640C, and 640D so as to match the shape of the inner layer strips 660A, 660B, 660C, and 660D.

[0266] Apart from any visual differences, the first and second inner layers 610, 630 may be identical or of similar type to those already described above with respect to Article 200. Layers described as optional in Article 200 may also be optional in Article 600. An optional bottom strip 635 may be present, as shown in Figure 6C, which is adapted to bond to the underside of the surface of the second inner layer 630 facing away from the first inner layer 610. The bonding may be by the use of a bonding strip 636 configured to be sandwiched between the second inner layer 630 and the bottom strip 635. The bottom strip 635 may be a nonwoven fabric strip, in which case the bonding stabilizes the nonwoven fabric fibers of the bottom strip 653. Alternatively, the bottom strip 635 may be a woven or knitted fabric, in which case the fourth stabilizing strip 636 may still function as an adhesive strip. Such arrangement of the bottom strip 635 can help prevent accidental movement of moisture from the bottom of the article. In some embodiments, the bonding strip 636 is made of the same material as the stabilizing layer 640, and any nonwoven fibers bonded to the strip can be stabilized in the same manner as described above, with reference to Figures 1A to 1D.

[0267] Aside from the differences mentioned above and those clearly evident from the drawings, all other characteristics of article 500, including the properties of its various layers, may be the same as those described above with respect to article 200 or 300.

[0268] Example 6 Figures 7A–7C show Article 700 according to another preferred embodiment of the present invention. Article 700 in this embodiment is an adult diaper or pad. It may be an adult unisex diaper or pad.

[0269] Article 700 is an undergarment, or an undergarment, that is positioned close to the user's body and is designed to receive moisture from the user's body. The user may be an adult wearing the article.

[0270] The article 700 of this embodiment is similar to the above-mentioned article 200 in many aspects, and the differences can be confirmed by comparing Fig. 2A with Fig. 7B, Fig. 2B with Fig. 7B, and Fig. 2C with Fig. 7C. In the drawings related to the article 700, the features similar to those shown in the drawings related to the article 200 are indicated by reference numerals added with 500. Most of the descriptions of the article 200 regarding the above preferred embodiments are equally applicable to the article 700, so there is no need to describe too many details again. Only the main differences will be explained as necessary.

[0271] One of the main differences lies in the shape of the layers, and all these layers are appropriately shaped so that the article 700 functions as an adult diaper or pad, or an adult unisex diaper or pad.

[0272] Another main difference is the presence of additional layers, namely, the bonding layer 770 and the innermost layer 780 (which can also be called the innermost layer). The innermost layer can be in the form of leakage prevention strips, the protection strips 780A, 780B. The strips 780A, 780B can be non-woven fabrics or can be knitted. The bonding layer 470 is also in the form of strips 770A, 770B. The bonding layer of 770 can be arranged between the more inner layer 760 and the innermost layer 780, or can be sandwiched between them, thereby bonding the more inner layer 760 and the innermost layer 780. This bonding can be by heat and / or adhesive bonding applied in the manner already described above. In some embodiments, the more outer layer 720 can also be a stabilizing layer (secondary stabilizing layer) similar to that in Example 1. In some embodiments, the bonding layer 770 can be made of the same material as the stabilizing layer 740 and the more outer layer 720. In this case, each of the three layers 720, 740, and 770 can function as a stabilizing layer for stabilizing any non-woven fibers bonded to these layers in the same manner as described above with reference to 1A to 1D.

[0273] Another difference is that the inner layer 760 also has the form of strips 760A and 760B, each strip extending from the top to the bottom of the article 700. Furthermore, the outer layer 740 also has the form of strips 740A and 740B, each strip extending from the top to the bottom of the article 700.

[0274] The innermost layer 760 may be made from the same fabric as the outer cover 750. The innermost layer 760, and / or the outer cover 750, may be made from a nonwoven fabric or nonwoven material having multiple nonwoven fibers. Such nonwoven fibers are stabilized by adhesive and / or thermal bonding in the same or similar manner as already described above.

[0275] Similar to the outermost layer 220, the outermost layer 620 may be moisture-resistant. In some embodiments, a moisture-resistant solution is applied to the outermost layer 620. The outermost layer 620 may be coated with a moisture-resistant solution.

[0276] The first and second inner layers 710, 730, and the stabilizing layer may be the same as or of the same type as those already described above with respect to article 200. Layers described as optional in article 200 may also be optional in article 700.

[0277] The outer cover 750 may take the form of multiple panels, namely an upper panel 750A near the upper end of the article 700, a lower panel 750B near the lower end of the article 700, and an intermediate panel 750C extending from the upper panel 750A to the lower panel 750B or vice versa. The intermediate panel 750C may be detachably attached to either or both of the upper panel 750A and the lower panel 750B using suitable fasteners 781A, 781B. The fasteners in this embodiment are most preferably Velcro® (also known as hook-and-loop fasteners). However, many other alternative fasteners are possible, but are not limited to buttons, snap domes / poppers, etc.

[0278] The outward-facing surface of the outer cover 750 may include fasteners 782A, 782B. Fasteners 782A, 782B may enable a removable connection to the underwear in a manner similar to that described above for article 200. The fasteners in this embodiment are most preferably Velcro® (also known as hook-and-loop fasteners). However, many other alternative fasteners are possible, but are not limited to buttons, snap domes / poppers, etc.

[0279] An optional lower strip 735 may be present, as shown in Figure 7C, which is adapted to bond to the lower part of the surface of the second inner layer 730, which faces away from the first inner layer 710. The bonding may be by using a lower bonding strip 736, which is configured to be sandwiched between the second inner layer 730 and the lower strip 635. The lower strip 635 may be a nonwoven fabric strip, in which case the bonding stabilizes the nonwoven fabric fibers of the lower strip. Alternatively, the lower strip 735 may be a woven or knitted fabric, in which case the lower bonding strip 736 may still function as an adhesive strip. Such arrangement of the lower strip 735 can help prevent accidental movement of moisture from the lower part of the article 700. In some embodiments, the lower bonding strip 736 is made of the same material as the stabilizing layer 740 and can stabilize any nonwoven fabric fibers bonded to the strip in the same manner as described above, with reference to Figures 1A-1D.

[0280] Similarly, an optional upper strip 737 may be present, as shown in Figure 7C, which is adapted to bond to the upper surface of the second inner layer 730 facing away from the first inner layer 710. The bonding may be by using an upper bonding strip 738 configured to be sandwiched between the second inner layer 730 and the upper strip 737. The upper strip 635 may be a nonwoven fabric strip, in which case the bonding stabilizes the nonwoven fabric fibers of the lower strip. Alternatively, the upper strip 735 may be a woven or knitted fabric, in which case the upper bonding strip 738 may still function as an adhesive strip. Such arrangement of the upper strip 737 can help prevent accidental movement of moisture from the lower part of the article 700. In some embodiments, the upper and lower bonding strips 738 are made of the same material as the stabilizing layer 740 and can stabilize any nonwoven fabric fibers bonded to the strip in the same manner as described above, with reference to Figures 1A-1D.

[0281] Aside from the differences mentioned above and those clearly evident from the drawings, all other characteristics of article 700, including the properties of its various layers, may be the same as those described above with respect to article 200.

[0282] Example 7 Figures 8A to 8D show article 800 according to another preferred embodiment of the present invention. Article 200 in this embodiment is women's underwear 5, or part of women's underwear 5.

[0283] Article 800 of this embodiment is similar in many respects to Article 200 described above, and the differences can be seen by comparing Figures 2A and 8C and Figures 2B and 8D. In Figures 8A to 8D, features similar to those shown in the drawings for Article 200 are indicated by the same reference numeral plus 600. Since most of the description of Article 200 in the above preferred embodiment applies equally to Article 800, there is no need to repeat too many details. The main differences will be described only as necessary.

[0284] Here, the outer cover 850 is a women's underwear panel, which may be made of a knitted fabric and preferably is highly elastic for comfort.

[0285] The outermost layer 820 is positioned between or sandwiched between the first inner layer 810 and the outer cover 850, thereby interconnecting the first inner layer 810 and the outer cover 850.

[0286] The first inner layer 810 and the outer cover 860 are joined to each other using the outermost layer 820.

[0287] The innermost layer 860 is in the form of strips 860A and 860B. The stabilizing layer 840 is also in the form of strips 840A and 840B. Strip 840A can be placed between the second inner layer 830 and the innermost layer strip 860A, or sandwiched between them. Similarly, strip 840B can be placed between the second inner layer 830 and the innermost layer strip 860B, or sandwiched between them. Thus, the stabilizing strips 840A and 840B can interconnect the second inner layer 830 and the innermost strips 860A and 860B.

[0288] The innermost strips 860A and 860B may be manufactured from the same fabric as the outer cover 850. Alternatively, the innermost strips may be manufactured from a nonwoven fabric.

[0289] The innermost strips 860A, 860B, and stabilizing strips 840A, 840B may extend horizontally along the first edge of the second inner layer 830 near the upper end 804 of article 800, and along the second edge near the lower end 806 of article 800. More specifically, the innermost strips 860A and stabilizing strip 840A may extend horizontally along the first edge of the second inner layer 830 near the upper end 804 of article 800. Similarly, the innermost strips 860B and stabilizing strip 840B may extend horizontally along the second edge of the second inner layer 860B near the lower end 806 of article 800.

[0290] The bonding layer 870 may be in the form of two possible strips 870A and 870B. The third stabilizing strips 870A and 870B may be adhesive strips. The bonding strips 870A and 870B may be bonded (by adhesive and / or thermal bonding) to the two longitudinal sides of the second inner layer 830, as well as to the innermost strips 860A and 860B. A further adhesive strip 859, which may optionally be manufactured from the same material as the stabilizing layer 840, is shown. In some embodiments, the outermost layer 820 may also be a stabilizing layer (secondary stabilizing layer) similar to that in Example 1. In some embodiments, the bonding layer 870 may be made of the same material as the stabilizing layer 840 and the outermost layer 820, in which case each of the three layers 820, 840, and 870 may function as a stabilizing layer for stabilizing any nonwoven fibers bonded to these layers in the same manner as described above with reference to Figures 1A to 1D.

[0291] Aside from the differences mentioned above and any other differences evident from the drawings, all other features of article 800, including the properties of its various layers, may be the same as those described above with respect to article 200.

[0292] Example 8 Figures 9A-9B are front and back views of men's underwear 10, comprising article 900 according to a further embodiment of the present invention, which is identical or similar to article 300 of Example 2.

[0293] Article 900 of this embodiment is similar in many respects to Article 300 described above, and the differences can be seen by comparing Figures 9D and 3C. In the drawings relating to Article 900, features similar to those shown in the drawings relating to Article 300 are indicated by the same reference numeral plus 600. Since most of the description of Article 300 relating to the preferred embodiment above applies equally to Article 900, there is no need to repeat too many details. The main differences will be described only as necessary.

[0294] Figure 9C shows a flattened view of the underwear 10, showing article 900 which forms part of the men's underwear. Figure 12D shows an exploded view showing article 900 which forms part of the men's underwear. The outer cover 950 may be connected to the men's underwear panel 990A and may be made of a woven fabric, preferably very stretchable for comfort. Alternatively, the outer cover 950 may be made of a nonwoven fabric similar to the outer cover 450. Other panels of the underwear 990A, 990B, and 990C are also shown. These panels may also be made of a woven fabric, preferably very stretchable. The waistband elastic portion 995 of the underwear is also shown. These parts of the underwear may be pre-connected to the underwear panel using adhesive strips 960 (which may be similar to the stabilizing layer 940) either before or after joining the various layers of article 900 using compressive stress.

[0295] Aside from the differences described above and any other differences evident from the drawings, all other features of article 900, including the properties of its various layers, may be the same as those described above with respect to article 300.

[0296] Example 9 Figure 10A shows an exploded view of article 1000 according to another preferred embodiment of the present invention.

[0297] Article 1000 is an undergarment, or intended for use with an undergarment, that is positioned near the user's chest and receives moisture from the user's chest. Article 1000 may be used as a breast pad. Article 1000 may also be suitable for absorbing any other moisture from the user's body.

[0298] Article 1000 is similar in many respects to Article 200 described above, and the differences can be seen by comparing Figure 2C and Figure 10A. In the drawings relating to Article 1000, features similar to those shown in the drawings relating to Article 200 are indicated by the same reference numeral plus 800. Since most of the description of Article 200 relating to the preferred embodiment described above applies equally to Article 1000, there is no need to repeat too many details. The main differences will be described only as necessary.

[0299] One of the main differences lies in the shape of the layers, all of which are properly shaped to function as breast pads.

[0300] Similar to the outermost layer 220, the outermost layer 1020 may be moisture-resistant. In some embodiments, a moisture-resistant solution is applied to the outermost layer 1020. The outermost layer 1020 may be coated with a moisture-resistant solution.

[0301] The innermost layer 1060 may be made from the same fabric as the outer cover 1050. The innermost layer 1060, and / or the outer cover 1050, may be made from a nonwoven fabric or nonwoven material having multiple nonwoven fibers. Such nonwoven fibers are stabilized by adhesives and / or thermal bonding in the same or similar manner as already described above.

[0302] The first and second inner layers 1010, 1030 may be the same as or of the same type as those already described above with respect to article 200. The outermost layer 1020 may be made of the same or the same material as the stabilizing layer 1040. The stabilizing layer 1040 may be made of the same material as the stabilizing layer 240 described above with respect to article 200. Any layer described as optional in relation to article 200 may also be optional in article 1000.

[0303] Aside from the differences described above and any other differences evident from the drawings, all other features of article 1000, including the properties of its various layers, may be the same as those described above with respect to article 200.

[0304] Example 10 Figure 11A shows an exploded view of article 1100 according to another preferred embodiment of the present invention. Figure 11B shows an assembled view of article 1100.

[0305] Article 1100 is a sanitary protector, or a mattress pad, or an incontinence pad, or is intended to be used as such. Some non-limiting examples of Article 1100 may be a mattress pad for a bed, a mattress pad for a seat, a car seat protector, a baby changing pad, a crib protector, or one for bladder leak / incontinence protection.

[0306] Article 1100 is similar in many respects to Article 200 described above, and the differences can be seen by comparing Figure 2C and Figure 11A. In the drawings relating to Article 1100, features similar to those shown in the drawings relating to Article 200 are indicated by the same reference numeral plus 900. Since most of the description of Article 200 relating to the preferred embodiment described above applies equally to Article 1100, there is no need to repeat too many details. The main differences will be described only as necessary.

[0307] One of the main differences lies in the shape of the layers, all of which are properly shaped to function as a sanitary protector, or mattress pad, or incontinence pad.

[0308] Similar to the outermost layer 220, the outermost layer 1120 may be moisture-resistant. In some embodiments, a moisture-resistant solution is applied to the outermost layer 1120. The outermost layer 1120 may be coated with a moisture-resistant solution. In this embodiment, it can be confirmed that the outermost layer 1120 is the outermost layer of article 1100. In some embodiments, a separate outer cover may exist as the outermost layer adjacent to the outermost layer 1120. In such cases, the outer cover may be manufactured from a nonwoven material similar to the outer cover 250.

[0309] The innermost layer 1160 may be made of a nonwoven fabric or nonwoven material having multiple nonwoven fibers. Such nonwoven fibers are stabilized by an adhesive (e.g., bonding glue) and / or thermal bonding in the same or similar manner as already described above. The innermost layer 1060 may be in the form of a strip as shown in Figure 11A.

[0310] The inner layer 1110 may be the same as or of the same type as the inner layer 210 already described above with respect to article 200. Although only one inner layer 1110 in the form of a nonwoven absorbent core is disclosed, there may be two or more such nonwoven layers. The outermost layer 1020 may be made of the same or the same material as the stabilizing layer 1040. A second inner layer 1130 is also disclosed. The second inner layer may be a quick-drying knitted fabric. The second inner layer may be a quick-drying knitted fabric with quilted stitches to reduce friction.

[0311] Aside from the differences described above and any other differences evident from the drawings, all other features of article 1000, including the properties of its various layers, may be the same as those described above with respect to article 200.

[0312] Although the foregoing are presented as exemplary embodiments of the present invention, it will naturally be recognized that all modifications and variations thereto, which will be obvious to those skilled in the art, fall within the broad scope and domain of the various aspects of the present invention as described herein and / or as defined in the claims.

[0313] From the above, it can be understood that the present invention enables the joining of nonwoven fibers, thereby stabilizing the nonwoven fibers. Stabilization of nonwoven fibers means that the fibers do not decompose, or do not easily decompose, during washing, thereby making otherwise unreusable nonwoven fibers reusable. Furthermore, the present invention joins the layers of an article to each other by simply arranging the aforementioned layers by applying compressive stress to the article. This significantly reduces the manufacturing process, cost, and time by eliminating, or at least reducing, sewing and / or other complex processes required to join the layers to each other. It should also be noted that composite machinery is required to manufacture the article. Furthermore, the absence or minimal sewing means that the article is less prone to leakage. In some embodiments, the article is leak-proof.

[0314] One or more non-limiting advantages of the present invention may be as follows: • A simpler design • High cost-effectiveness • Ease of assembly • By applying compressive stress to the material, i.e., by compression, layers can be easily joined, thus eliminating the need for complex machinery for layer assembly. • Reduced manufacturing time • Because there are no complex joining processes, less labor is needed to focus on manufacturing / assembly. • Reusable items that are more environmentally friendly than single-use products. • Contains no harmful or hazardous chemicals. • Washable and tumble-dryable. • Less likely to leak due to the absence or minimal stitching. • Significantly reduce the number of steps, time, and complexity of layer assembly during manufacturing, without compromising absorption rate, level, and liquid retention capacity.

Claims

1. A method for stabilizing nonwoven fabric fibers, A step of providing a nonwoven material that includes or is in the form of multiple nonwoven fibers, A step of providing a stabilizing material, The step of applying the stabilizing material to at least part or all of the nonwoven material such that the stabilizing material is applied to at least some or all of the plurality of nonwoven fibers, wherein the stabilizing material is a material configured to be bonded to the nonwoven fibers by adhesive and / or heat bonding, The steps include joining the plurality of nonwoven fabric fibers to which the stabilizing material has been applied to the stabilizing material by adhesive and / or thermal bonding, and The method, including the method described above.

2. The nonwoven fibers are joined together to form a bonded nonwoven fiber layer, and the bonded nonwoven fiber layer is When the layer is washed or laundered at least once or more times, at least a portion of the bonded nonwoven fibers are bonded to such an extent that the bonded nonwoven fibers do not decompose or substantially decompose. The method according to claim 1, including the method described in claim 1.

3. The method according to claim 1 or 2, wherein the nonwoven material is a nonwoven material layer.

4. The method according to claim 1 or 2, wherein the nonwoven material is a nonwoven fabric, a nonwoven cloth, or a nonwoven fabric.

5. The method according to any one of claims 1 to 4, wherein the thermal bonding comprises fusing at least some or all of the nonwoven fibers at a temperature related to the melting point of the fibers to be fused and / or the melting point of the stabilizing material.

6. The method according to any one of claims 1 to 5, wherein the thermal bonding is performed at a temperature of 70°C to 240°C.

7. The method according to any one of claims 1 to 6, wherein the stabilizing material is formed as a stabilizing layer.

8. The method according to claim 7, wherein the stabilizing layer is a film or membrane.

9. The method according to claim 7 or 8, wherein the stabilizing layer has a thickness based on the type of nonwoven material and the melting point of the nonwoven material.

10. The method according to any one of claims 7 to 9, wherein the stabilizing layer has a thickness of 0.005 mm to 0.5 mm.

11. The method according to any one of claims 7 to 10, wherein the stabilizing layer is a breathable layer.

12. The method according to any one of claims 7 to 11, wherein the stabilizing layer is a complete layer.

13. The method according to any one of claims 7 to 11, wherein the stabilizing layer is a partial layer.

14. The method according to any one of claims 7 to 11, wherein the stabilizing layer is a frame layer.

15. The method according to any one of claims 7 to 14, wherein the stabilizing layer is a polyurethane (PU) material layer.

16. The method according to any one of claims 7 to 14, wherein the stabilizing layer is a polyethylene (PE) material layer.

17. The method according to any one of claims 7 to 14, wherein the stabilizing layer is a polylactic acid (PLA) material layer.

18. The method according to any one of claims 7 to 17, wherein the stabilizing layer is a fabric adhesive layer.

19. The method according to any one of claims 1 to 18, wherein the joining is performed by a pattern forming method.

20. The method according to any one of claims 1 to 19, wherein the stabilizing material is an adhesive material.

21. The method according to claim 20, wherein the adhesive material is glue.

22. The method according to claim 20 or 21, wherein the adhesive material is a spray glue or a roll-on glue.

23. The method according to claim 20, wherein the adhesive material is a polyurethane (PU) adhesive.

24. The method according to claim 20, wherein the adhesive material is a polyethylene (PE) adhesive.

25. The method according to claim 20, wherein the adhesive material is a polylactic acid (PLA) adhesive.

26. The method according to claim 20, wherein the adhesive material is a textile adhesive.

27. The method according to any one of claims 1 to 26, wherein an adhesive substance is applied to the stabilizing material for the purpose of joining.

28. The method according to claim 20, wherein the adhesive substance is a glue, spray glue, roll-on glue, polyurethane adhesive, polyethylene (PE) adhesive, or polylactic acid (PLA) adhesive.

29. The method according to claim 20, wherein the adhesive substance is a textile adhesive.

30. The method according to any one of claims 1 to 29, wherein the nonwoven fabric fibers are synthetic polymers, biocomponent fibers, natural fibers, artificial fibers, or a combination thereof.

31. The method according to claim 30, wherein the synthetic polymer is selected from polyethylene (PE), polypropylene (PP), or polyethylene terephthalate (PET).

32. The method according to claim 30, wherein the natural fiber is selected from wood, pulp, cotton, or bamboo.

33. The method according to claim 30, wherein the artificial fiber is selected from viscose, lyocell, polylactic acid (PLA), or cellulose acetate.

34. A method for constructing a reusable moisture-absorbing article, which is an undergarment or intended for use with an undergarment, that is positioned close to the user's body and absorbs (preferably absorbs and retains) moisture from the user's body, The steps of providing at least one layer of a nonwoven material which includes or is in the form of multiple nonwoven fibers, A step of applying at least one stabilizing material to at least a portion of at least one layer of the nonwoven material such that the stabilizing material is applied to at least some or all of the plurality of nonwoven fibers, wherein the stabilizing material is a material configured to be bonded to the nonwoven fibers by adhesive and / or thermal bonding, and the stabilizing material forms a stabilizing layer, and A step of joining the plurality of nonwoven fabric fibers to which the stabilizing material has been applied to the stabilizing material by adhesive and / or thermal bonding, thereby forming the reusable moisture-absorbing article. The method, including the method described above.

35. The method according to claim 34, wherein the nonwoven fabric fibers are bonded in such a manner that they do not decompose or substantially decompose when the bonded nonwoven fabric fibers are subjected to at least one or more washes or laundry cycles.

36. A method for constructing a reusable moisture-retaining article, which is an undergarment or intended for use with an undergarment, that is placed close to the user's body and absorbs and retains moisture from the user's body, A step of providing a reusable moisture-absorbing and moisture-retaining insert, wherein at least a portion of the insert is exposed or configured to define an inner layer of the article, the inner layer is configured to be located close to the user's body to directly absorb and retain moisture from the user's body and faces the user's body to be in physical contact with the user, and the insert comprises at least one inner layer of a nonwoven material which comprises or is in the form of a plurality of nonwoven fibers, The steps include providing an inner layer of a nonwoven material that includes or is in the form of multiple nonwoven fibers, located in the outward direction of the insert, A step of providing a stabilizing layer formed by a stabilizing material, wherein the stabilizing material is a material configured to be bonded to the nonwoven fabric fibers by an adhesive and / or thermal bonding, The steps include providing an outer cover configured to define the outer layer of the article, below: The arrangement involves positioning the inner layer, the insert, the stabilizing layer, and the outer cover such that the insert is located between the outer cover and the stabilizing layer, and at least a first portion of the stabilizing layer is located between the inner layer and the insert, wherein at least a second portion of the stabilizing layer is also configured to bond with the outer cover. At least a portion of the inner layer is bonded to the stabilizing layer by applying heat and / or adhesive bonding. Bonding at least a portion of the insert to the stabilizing layer by applying heat and / or adhesive bonding, and At least a portion of the outer cover is joined to the second portion of the stabilizing layer by applying heat and / or adhesive bonding. The step of assembling the insert, the inner layer, the stabilizing layer, and the outer cover, wherein the insert is located between the outer cover and the stabilizing layer, and The method, including the method described above.

37. A reusable moisture-absorbing article comprising a plurality of nonwoven fibers stabilized using the method described in any one of claims 1 to 36.

38. Diapers, Sanitary napkins, Incontinence pads, Incontinence pouch Women's underwear for incontinence, Men's underwear for incontinence, Breast pads, Mattress pad, Baby diaper changing pads, or Baby crib protector The article according to claim 37, which is any one of the following.

39. A reusable moisture-absorbing article manufactured using the method described in any one of claims 1 to 36.

40. A nonwoven material comprising at least one nonwoven material containing multiple nonwoven fibers or being in the form of multiple nonwoven fibers, At least one stabilizing material and A reusable moisture-absorbing article, including, The stabilizing material is applied to at least some or all of the nonwoven fabric material such that the stabilizing material is applied to at least some or all of the plurality of nonwoven fabric fibers. The plurality of nonwoven fabric fibers to which the stabilizing material has been applied are joined to the stabilizing material by adhesive and / or thermal bonding. By this, at least one nonwoven fabric layer and at least one stabilizing layer are joined to each other. The aforementioned article.

41. Undergarments comprising or incorporating an article constructed using the method described in any one of claims 1 to 36.

Images