Smart diaper having improved skin moisturizing power

The smart diaper system with blended fibers and integrated sensors addresses skin health and environmental issues by providing real-time excretion detection and comfort, enhancing user experience and hygiene.

WO2026146774A1PCT designated stage Publication Date: 2026-07-09SMART BIZ CO ON CO LTD

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SMART BIZ CO ON CO LTD
Filing Date
2025-09-18
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

Disposable diapers cause skin health issues and environmental pollution, while cloth diapers are inconvenient and difficult to use, and both types fail to promptly notify wearers of excretion, leading to potential physical and psychological discomfort.

Method used

A smart diaper system with an inner layer of blended cotton and Tencel fibers, absorbent layers, a waterproof film, and integrated sensors for urine and feces detection, along with a body temperature monitor, providing real-time health notifications and enhanced comfort.

Benefits of technology

The system offers quick health information, improved skin moisturization, antibacterial properties, and lightweight comfort, addressing skin health and environmental concerns while ensuring prompt detection of excretions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a smart diaper having a urine / feces or body temperature detection device and, more specifically, to a smart diaper and a smart diaper system comprising same, enabling a wearer to promptly receive health information such as excretion or body temperature of the wearer through a notification, and enabling the wearer to be provided with improved wearing comfort, such as being breathable and lightweight, and being provided with moisturizing power for the skin.
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Description

Smart diapers with improved skin moisturization

[0001] The present invention relates to a smart diaper equipped with a device for detecting urine, feces, or body temperature, and more specifically, to a smart diaper and a smart diaper system including the same, which enables the wearer to quickly receive health information, such as the wearer's excretions or body temperature, as a notification, and provides the wearer with an enhanced wearing comfort, such as being comfortable, lightweight, and providing moisture to the skin.

[0002] Diapers have a very long history as hygiene products developed for infants, the elderly, and others who are unable to control their own urination and defecation or have difficulty expressing themselves. The diaper industry has undergone rapid development in modern times, and the market for disposable diapers is gradually expanding, particularly as a sector of the infant and silver industries.

[0003] Diapers are divided into cloth diapers made of cotton and disposable diapers made of materials such as waterproofing agents, absorbent materials, and polyurethane.

[0004] In the case of disposable diapers, after the wearer has excreted waste, the waste and the diaper are discarded, and a new diaper is put on. This process eliminates the need for the wearer to wash the diaper or deal with the wearer's excrement. Furthermore, the diaper offers convenience to the wearer by featuring a urine indicator line on the outside that changes color when urine is absorbed into the absorbent material, making it easy to determine whether waste has been excreted.

[0005] However, because these disposable diapers are composed of various synthetic fibers such as polyurethane, polyolefin, absorbents, and waterproofing materials, they have a significantly negative impact on the wearer's skin health. Furthermore, the components of disposable diapers are causing environmental pollution problems.

[0006] In contrast, cloth diapers have the advantage of causing fewer skin health issues for the wearer and fewer environmental pollution problems because they are made of knitted cotton fabric. However, disadvantages of cloth diapers include the inconvenience of having to wash both the excrement and the diaper after use, and the difficulty in determining when excretion has occurred.

[0007] However, whether it is a disposable diaper or a cloth diaper, if a caregiver does not immediately check when an infant or a user who cannot accurately express themselves urinates or defecates while wearing the diaper, the diaper wearer may suffer from various physical conditions, such as eczema, bedsores, skin rashes, chafing, and erythema. Furthermore, from a psychological perspective, they may experience mental stress from wearing a wet diaper contaminated with urine and feces.

[0008] To address these issues, various methods have recently been proposed to maintain a comfortable state by rapidly absorbing moisture, such as increasing the absorption rate of disposable diapers or adding heat-absorbing agents, as well as methods to immediately check for urination and defecation.

[0009] The present invention relates to a smart diaper and a smart diaper system including the same, which aims to solve the above-mentioned problems by enabling the wearer to quickly receive health information, such as excrement or body temperature, as a notification, and by providing the wearer with an improved wearing comfort, such as being pleasant, lightweight, and providing moisturizing properties to the skin.

[0010] The above and other objects and advantages of the present invention will become apparent from the following description describing preferred embodiments.

[0011] The above objective is achieved in a smart diaper, wherein the diaper comprises: an inner layer that is in direct contact with the skin and is permeable to urine and feces; an absorbent layer located on the bottom surface of the inner layer and absorbing urine and feces that have permeated the inner layer, having a structure in which a first absorbent layer and a second absorbent layer are laminated; a highly absorbent cover layer formed by laminating on the bottom surface of the absorbent layer; and

[0012] A main body portion is formed by including a waterproof film layer located on the bottom surface of the superabsorbent cover layer and preventing absorbed urine and feces from leaking to the outside; and the inner lining layer is composed of a fabric of blended fibers in which cotton fibers and Tencel fibers are mixed in a weight ratio of 1:0.25.

[0013] The blended fibers are moisturizing and antibacterial treated, and the first absorbent layer and the second absorbent layer are independently manufactured into a fabric using one or more fibers selected from cotton fibers, lyocell fibers, fluff pulp, polar fleece, and calcium alginate fibers, and the urine and feces detection device is provided on one side of the main body of the diaper or the remaining part excluding the main body, wherein the urine and feces detection device is freely detachable.

[0014] The above urine and feces detection device can be achieved by a smart diaper characterized by comprising: a urine and feces detection sensor that detects urine and feces information; and an output unit that outputs the degree of urine and feces detected by the urine and feces detection sensor as a signal.

[0015] The fabric of the blended fibers of the inner layer is manufactured with a density of 21 to 25 gauge using a double woven fabric with a weight of 200 to 350 g / yd (61"), woven by the Jacquard method by mixing the cotton fibers and Tencel fibers in a weight ratio of 1:0.25, and the moisturizing and antibacterial treatment is characterized by performing fiber processing treatment on the cotton fibers and Tencel fibers, respectively, using a fiber processing agent, and the fiber processing agent is characterized by containing functional ingredients mixed in a weight ratio of 1:0.5:0.9:0.34:0.19 of shea butter, almond oil, oat extract, mineral salt, and chitosan powder, and the fiber processing treatment is characterized by immersing each fiber in the fiber processing agent or spraying the fiber processing agent onto the fiber, and after performing the fiber processing treatment, the fiber is diluted with lukewarm water at 30 to 35°C, and then ironed or dried with hot air.

[0016] The above-described diaper body further comprises a body temperature monitoring unit provided on one side thereof, wherein the body temperature monitoring unit comprises a temperature and humidity sensor for detecting temperature and humidity, a wireless communication module for receiving and transmitting the sensing value of the temperature and humidity sensor, a sensing unit comprising a battery for supplying power to the wireless communication module and the temperature and humidity sensor, and an alarm unit that communicates with the sensing unit to receive and analyze the sensing data sensed by the sensing unit and performs an alarm.

[0017] According to the present invention, health information such as the wearer's excrement or body temperature can be quickly provided to the wearer as a notification, and the device is comfortable, lightweight, and provides moisturizing power to the skin, while exhibiting antibacterial and deodorizing functions, thereby providing an improved wearing comfort compared to existing smart diaper products.

[0018] According to the present invention, by actively utilizing eco-friendly materials and bioactive ingredients for antibacterial activity and skin protection, it is possible to provide a high-performance and high-quality smart diaper that can protect the health and hygiene of the diaper wearer.

[0019] However, the effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description below.

[0020] FIG. 1 schematically shows the main body of a smart diaper according to one embodiment of the present invention.

[0021] The present invention will be described in detail below with reference to the embodiments and drawings. These embodiments are presented merely as examples to explain the invention more specifically, and it will be obvious to those skilled in the art that the scope of the invention is not limited by these embodiments.

[0022] Furthermore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains, and in the event of a conflict, the description in this specification, including the definitions, shall prevail.

[0023] To clearly explain the proposed invention in the drawings, parts unrelated to the description have been omitted, and similar parts throughout the specification have been given similar reference numerals. Furthermore, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Additionally, the term "part" as described in the specification refers to a single unit or block that performs a specific function.

[0024] In each step, identification codes (1st, 2nd, etc.) are used for convenience of explanation and do not describe the order of the steps; the steps may be performed differently from the specified order unless a specific order is clearly indicated in the context. That is, the steps may be performed in the same order as specified, substantially simultaneously, or in the reverse order.

[0025]

[0026] One aspect of the present invention comprises: an inner layer that is in direct contact with the skin and is permeable to urine and feces; an absorbent layer located on the bottom surface of the inner layer and absorbing urine and feces that have passed through the inner layer, having a structure in which a first absorbent layer and a second absorbent layer are laminated; a highly absorbent cover layer formed by laminating on the bottom surface of the absorbent layer; and

[0027] A main body portion is formed by including a waterproof film layer located on the bottom surface of the superabsorbent cover layer and preventing absorbed urine and feces from leaking to the outside; and the inner lining layer is composed of a fabric of blended fibers in which cotton fibers and Tencel fibers are mixed in a weight ratio of 1:0.25.

[0028] The blended fibers are moisturizing and antibacterial treated, and the first absorbent layer and the second absorbent layer are independently manufactured into a fabric using one or more fibers selected from cotton fibers, lyocell fibers, fluff pulp, polar fleece, and calcium alginate fibers, and the urine and feces detection device is provided on one side of the main body of the diaper or the remaining part excluding the main body, wherein the urine and feces detection device is freely detachable.

[0029] The above-described urine detection device provides a smart diaper comprising: a urine detection sensor that detects urine information; and an output unit that outputs the degree of urine detected by the urine detection sensor as a signal.

[0030]

[0031] A smart diaper according to one embodiment of the present invention may have the shape of a conventional diaper that is placed between the wearer's legs and receives the wearer's urine and feces. That is, the diaper may include a main body portion positioned facing the wearer's excretory organs and various components extending from each corner of the main body portion with a certain area, such as a waist belt or a detachable member.

[0032] In the present invention, the main body portion of the diaper will be described in detail. However, it is obvious that the overall shape of the diaper and the various components provided therein can be modified in design according to commonly included components and known technologies, and is not limited thereto.

[0033]

[0034] Hereinafter, embodiments and examples of the present invention will be described in detail with reference to the attached drawings. However, the present invention may not be limited to these embodiments and examples and drawings.

[0035]

[0036] FIG. 1 schematically shows the main body of a smart diaper according to one embodiment of the present invention.

[0037] Referring to FIG. 1, first, an inner layer (100) may be prepared. The inner layer (100) is a part that comes into direct contact with the wearer's skin and is permeable to the wearer's urine and feces.

[0038] The inner layer (100) may be composed of a material that is lightweight, soft to the touch, and moisturized so as not to irritate or harm the skin. In addition, the inner layer (100) fabric itself exhibits antibacterial, deodorizing, and far-infrared radiation properties, thereby providing the wearer with a light and fresh wearing sensation.

[0039] The above inner layer (100) may be composed of a fabric of blended fibers, for example, cotton fibers and Tencel fibers mixed in a weight ratio of 1:0.25.

[0040] The above cotton fiber may be composed of organic cotton. The above Tencel fiber may be made from an extract of eucalyptus trees.

[0041] The fabric of the above blended fiber may be manufactured with a density of 21 to 25 gauge using a double weave fabric with a weight of 200 to 350 g / yd (61) woven by the Jacquard method by mixing the above cotton fiber and Tencel fiber in a weight ratio of 1:0.25.

[0042]

[0043] Meanwhile, before manufacturing the blended fiber into a fabric, moisturizing and antibacterial treatments can be performed on the cotton fiber and Tencel fiber, respectively.

[0044] The above moisturizing and antibacterial treatment can be performed according to fiber processing technology commonly used in the field.

[0045] For example, the fiber processing agent may include a functional ingredient mixed with shea butter, almond oil, oat extract, mineral salt, and chitosan powder in a weight ratio of 1:0.5:0.9:0.34:0.19. In addition to the aforementioned functional ingredient, the fiber processing agent may further include known additive ingredients commonly used in the field.

[0046] The above fiber processing treatment may involve immersing the fiber in a fiber processing agent or spraying the fiber processing agent directly onto the fiber.

[0047] After performing the processing, the fiber can be diluted with lukewarm water at 30 to 35°C and then dried by ironing or hot air. Accordingly, the ionic bond between the fiber processing agent and the fiber becomes more robust due to heat, so compared to conventional technology, the effects of moisturizing, antibacterial, and deodorizing functions are improved, and since the functionality is imparted to the fiber itself, the durability can be excellent.

[0048] Conventionally, antibacterial and sterilization functions were intended to be provided by coating a functional coating liquid on the surface of the inner layer (100). However, when a coating layer is formed on one side of the fabric after manufacturing the inner layer fabric, the coating layer may detach, resulting in insufficient antibacterial and deodorizing performance, or there is a risk of allergic reactions or various side effects depending on the skin type because the coating layer comes into direct contact with the skin.

[0049] The inner layer (100) described above can be formed into a single-layer sheet by weaving the aforementioned moisturizing and antibacterial treated blended fibers into a fabric. This allows for a lighter weight compared to existing smart diaper products while providing excellent comfort.

[0050] It is preferable that the thickness of the inner layer (100) be formed to be 5% or less of the total thickness of the main body.

[0051]

[0052] Next, an absorbent layer (200) may be formed located on the bottom surface of the inner layer (100) and absorbing urine and feces that have passed through the inner layer (100).

[0053] The above absorption layer (200) is a layer that directly absorbs and retains moisture that has passed through the above inner layer (100), and may include a mesh layer in the shape of a perforated net.

[0054] The absorbent layer (200) may be manufactured into a fabric using one or more fibers selected from, for example, cotton fibers, lyocell fibers, fluff pulp, polar fleece, and calcium alginate fibers.

[0055] More specifically, the absorption layer (200) may be formed as a stacked structure of a first absorption layer and a second absorption layer.

[0056] Specifically, the first absorbent layer may be a fabric made of a mixed fiber comprising cotton fibers, calcium alginate fibers, and fluff pulp fibers mixed in a weight ratio of 1:0.2 to 0.3:0.15. The first absorbent layer, composed of the aforementioned component composition and content ratio, has excellent lightness and breathability compared to other fibers and can effectively absorb moisture contained in the wearer's excrement.

[0057] The first absorbent layer above may have a mesh structure.

[0058] The second absorption layer is located on the bottom surface of the first absorption layer and, specifically, can be formed as a polar fleece layer.

[0059] The aforementioned polar fleece is a fiber material produced from polyester yarn, which has the advantage of being lightweight and having excellent thermal insulation compared to other fibers. In addition, it features excellent water resistance and superior breathability.

[0060] The second absorbent layer is also formed with a mesh structure, and it is preferable that the mesh structure of the second absorbent layer be formed more densely than the mesh structure of the first absorbent layer.

[0061] It is preferable that the thickness ratio of the first absorption layer and the second absorption layer be formed as 1:0.7.

[0062] The absorbent layer (200), comprising a first absorbent layer and a second absorbent layer having the aforementioned features, can effectively prevent excretions such as urine from seeping out of the diaper while allowing ventilation to effectively protect the wearer's skin, and can provide excellent comfort to the wearer by making it lighter compared to conventional smart diaper products.

[0063] It is preferable that the thickness of the absorption layer (200) be formed to be 8 to 20% of the total thickness of the main body.

[0064]

[0065] Next, a highly absorbent cover layer (300) may be laminated and formed on the bottom surface of the absorption layer (200).

[0066] The above-mentioned superabsorbent cover layer (300) reinforces the absorbency of the above-mentioned absorbent layer (200) and enables rapid drying of moisture from urine and feces.

[0067] The superabsorbent cover layer (300) may include a superabsorbent polymer (SAP) composition. The superabsorbent cover layer (300) may be manufactured, for example, by applying the superabsorbent polymer (SAP) composition to a sheet laminated with tissue, spunbond nonwoven fabric, and air-through nonwoven fabric.

[0068] The above superabsorbent polymer (SAP) composition may further include a superabsorbent resin, pyrophyllite powder, tea tree oil, and glutinous rice flour.

[0069] The aforementioned supersorbent polymer (SAP) is referred to as a polymer and absorbs water up to tens to hundreds of times its own weight. Since the material itself absorbs water, it has a higher absorption capacity than materials like cotton or linen, and it does not release water.

[0070] The above-mentioned pyrophyllite powder is a ceramic component that emits a large amount of far-infrared rays and minerals, exhibiting detoxification and deodorization effects while ensuring harmlessness to the human body.

[0071] It is preferable to use the above tea tree oil diluted to a concentration of 1.5% or less, and it has excellent antibacterial and antimicrobial activity, which is very effective in preventing infection in the body.

[0072] At this time, it is preferable that the above-mentioned pyrophyllite powder and tea tree oil be mixed in a weight ratio of 1:0.2 to 0.3, and it is preferable that the mixture of the above-mentioned pyrophyllite powder and tea tree oil be mixed in an amount of 20 to 25 parts by weight relative to 100 parts by weight of the above-mentioned superabsorbent resin.

[0073] The above superabsorbent polymer composition can be prepared in a gel state by using the above glutinous rice flour as an eco-friendly binder, mixing the composition to form a solid form, and then concentrating it under reduced pressure. The gel state composition can be applied to a sheet in which the above tissue, spunbond nonwoven fabric, and air-through nonwoven fabric are laminated, and then fixed to produce the above superabsorbent cover layer (300).

[0074] The above-mentioned superabsorbent cover layer (300) is preferably manufactured to be 15 to 50% of the total thickness of the main body.

[0075]

[0076] Next, a waterproof film layer (400) can be formed on the bottom surface of the superabsorbent cover layer (300) to prevent absorbed urine and feces from leaking out.

[0077] The above waterproof film layer (400) may be composed of a material including, for example, urethane, polyethylene film, spunbond nonwoven fabric, or a combination thereof.

[0078] For example, the waterproof film layer (400) may be composed of a TPU film with enhanced breathability, PUL (polyurethane laminate), or a combination thereof.

[0079] However, it is not limited to this, and commonly used waterproof film materials may be used without restriction.

[0080] It is preferable that the thickness of the above waterproof film layer (400) be formed to be 5 to 10% relative to the thickness of the main body.

[0081]

[0082] A diaper according to one embodiment of the present invention may be manufactured by combining a main body portion comprising the aforementioned layered structures and other components provided in addition to the main body portion. A specific method for manufacturing the diaper may follow conventional known techniques.

[0083] A diaper according to one embodiment of the present invention is a smart diaper that can automatically detect the wearer's urine and feces.

[0084] To this end, a urine and feces detection device may be provided on one side of the diaper. The urine and feces detection device may be provided on one side of the main body of the diaper or on the remaining part excluding the main body.

[0085] Specifically, the above urine and feces detection device may include: a urine and feces detection sensor that detects urine and feces information; and an output unit that outputs the degree of urine and feces detected by the urine and feces detection sensor as a signal.

[0086]

[0087] The above-mentioned feces and urine information may include whether feces and urine have occurred. Specifically, the above-mentioned feces and urine information may include one or more pieces of information selected from the group consisting of the temperature, humidity, acidity, pressure, and composition of feces and urine.

[0088] The above urine and feces detection sensor may be formed in a structure that is inserted inside the diaper, and specifically, the urine and feces detection sensor may be formed by being inserted on the upper surface of the waterproof film layer (400), for example, between the superabsorbent cover layer (300) and the waterproof film layer (400).

[0089] The above urine and feces detection sensor may comprise a flexible material including a metal, a conductive fiber wire, or a wire coated with a conductive material.

[0090] According to one embodiment of the present invention, the flexible material may be formed by coating it on the waterproof film layer. It is preferable that the urine and feces detection sensor of the present invention be formed with an appropriate thickness so that it is mounted on a diaper, thereby ensuring that the wearer does not feel any foreign body sensation when wearing the diaper.

[0091] The above conductive fiber wire can be manufactured using a polypyrrole-based conductive paste. Specifically, the conductive paste can be manufactured by mixing polypyrrole nanoparticles with a binder resin, a conductive additive, and an organic additive. However, it is not limited thereto.

[0092]

[0093] Meanwhile, one side of the main body of the diaper may include a body temperature monitoring unit.

[0094] The above-mentioned body temperature monitoring unit may continuously measure the wearer's body temperature and humidity in real time, in addition to providing information regarding bowel movements, and notify the wearer. In particular, since fluctuations in body temperature and humidity are important health indicators for babies or patients, it is beneficial to equip the smart diaper system with a body temperature monitoring unit.

[0095] The above body temperature monitoring unit may be composed of a temperature and humidity sensor that detects temperature and humidity, a wireless communication module that receives and transmits the sensing value of the temperature and humidity sensor, a sensing unit comprising a battery that supplies power to the wireless communication module and the temperature and humidity sensor, and an alarm unit that communicates with the sensing unit to receive and analyze the sensing data sensed by the sensing unit and performs an alarm.

[0096] The above temperature and humidity sensor may be configured to detect when body temperature or humidity deviates from a certain range by coming into contact with the human body. Specifically, the above temperature and humidity sensor may be an infrared sensor.

[0097] The above output unit is connected to the urine and feces detection sensor and can immediately indicate whether urine and feces have occurred, or changes in body temperature or humidity by receiving a signal from the body temperature monitoring unit when urine and feces occur.

[0098] As an example, the output unit may be equipped with a display device to allow the user (typically, the guardian of the diaper wearer) to visually check whether urine or feces have occurred, and may also be equipped with a sound device to allow the user to audibly check whether urine or feces have occurred.

[0099] The above output unit may further be equipped with a functional fragrance emitting device. When the functional fragrance emitting device receives a signal from the urine and feces detection sensor, a sustained-release functional fragrance component is emitted to provide a more comfortable feeling and atmosphere to the diaper wearer.

[0100] The above-mentioned sustained-release functional fragrance ingredient may be manufactured as a sustained-release gel type by using yuzu essence and lime essence as fragrance ingredients and including other conventional additives such as polyvinyl alcohol, glycerin, xylitol, and methylcellulose.

[0101]

[0102] Meanwhile, the above-mentioned urine and feces detection device can receive a signal from the urine and feces detection sensor and be network-connected with a smart device based on a mobile application. As a result, it can be utilized as a smart diaper notification system capable of checking and analyzing the wearer's health status based on the wearer's urine and feces information.

[0103]

[0104] Optimal embodiments have been disclosed in the drawings and specification. Specific terms have been used herein, but are used only for the purpose of describing the invention and are not intended to limit the meaning or the scope of the invention as described in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the invention should be determined by the technical spirit of the appended claims.

Claims

1. Regarding smart diapers, The above diaper comprises an inner layer that is in direct contact with the skin and is permeable to urine and feces; An absorbent layer located on the bottom surface of the above-mentioned inner layer and absorbing feces and urine that have passed through the above-mentioned inner layer, having a structure in which a first absorbent layer and a second absorbent layer are laminated; A highly absorbent cover layer formed by laminating on the bottom surface of the absorbent layer; and A main body portion is formed by including a waterproof film layer located on the bottom surface of the above-mentioned superabsorbent cover layer and preventing absorbed urine and feces from leaking to the outside; The above inner layer is composed of a fabric of blended fibers in which cotton fibers and Tencel fibers are mixed in a weight ratio of 1:0.25, and The above blended fiber is treated with moisturizing and antibacterial agents, and The first absorbent layer and the second absorbent layer are independently manufactured into a fabric using one or more fibers selected from cotton fibers, lyocell fibers, fluff pulp, polar fleece, and calcium alginate fibers, and A urine and feces detection device is provided on one side of the main body of the diaper or on the remaining part excluding the main body, and the urine and feces detection device is freely detachable. The above urine and feces detection device is characterized by comprising: a urine and feces detection sensor that detects urine and feces information; and an output unit that outputs the degree of urine and feces detected by the urine and feces detection sensor as a signal. The fabric of the blended fibers of the inner layer is manufactured with a density of 21 to 25 gauge using a double weave fabric with a weight of 200 to 350 g / yd (61"), woven by the Jacquard method by mixing the cotton fibers and Tencel fibers in a weight ratio of 1:0.

25. The above moisturizing and antibacterial treatment involves processing the cotton fibers and Tencel fibers, respectively, using a fiber processing agent. The above fiber processing agent comprises functional ingredients mixed in a weight ratio of 1:0.5:0.9:0.34:0.19 of shea butter, almond oil, oat extract, mineral salt, and chitosan powder, and The above fiber processing treatment is characterized by immersing each fiber in a fiber processing agent or spraying a fiber processing agent onto the fiber, and after performing the fiber processing treatment, diluting the fiber with lukewarm water at 30 to 35°C and then performing ironing or drying with hot air. Specifically, the first absorbent layer is woven from a mixed fiber comprising cotton fibers, calcium alginate fibers, and fluff pulp fibers mixed in a weight ratio of 1:0.2 to 0.3:0.15, and has a mesh structure. The second absorbent layer is located on the bottom surface of the first absorbent layer and is formed of a polar fleece layer and has a mesh structure, wherein the mesh structure of the second absorbent layer is formed more densely than the mesh structure of the first absorbent layer. A smart diaper characterized in that the thickness ratio of the first absorbent layer and the second absorbent layer is formed as 1:0.

7.

2. In Paragraph 1, It further includes a body temperature monitoring unit provided on one side of the main body of the diaper, and The smart diaper is characterized by the above-mentioned body temperature monitoring unit comprising a temperature and humidity sensor that detects temperature and humidity, a wireless communication module that receives and transmits the sensing value of the temperature and humidity sensor, a sensing unit comprising a battery that supplies power to the wireless communication module and the temperature and humidity sensor, and an alarm unit that communicates with the sensing unit to receive and analyze the sensing data sensed by the sensing unit and performs an alarm.