Absorbent article with reactive graphics for providing contextually relevant digital experiences

Abstract

An absorbent article includes an outer cover, an absorbent inner structure, and a reactive graphic visible on an outer surface of the outer cover. The reactive graphic is formed from a reactive ink that transitions from a first state to a second state upon exposure to an activation event. In the first state, the reactive graphic forms a first machine-readable code that includes a first digital content link, and in the second state, the reactive graphic forms a second machine-readable code that includes a second digital content link. Generally, the second machine-readable code is different from the first machine-readable code and replaces the first machine-readable code upon the reactive ink transitioning from the first state to the second state, and the second digital content link is different from the first digital content link.

Description

Background Technology

[0001] Absorbent products such as diapers, training pants, incontinence products, and feminine hygiene products typically consist of a liquid-permeable side lining, a liquid-impermeable outer cover, and an absorbent core. The absorbent core is usually located between the outer cover and the lining to absorb and retain bodily fluids (such as urine) leaked from the wearer. The absorbent core can be made of, for example, superabsorbent particles or other absorbent materials. In some cases, absorbent products may be decorated with printed graphics (e.g., on the liquid-impermeable outer cover), such as decorative images or patterns.

[0002] However, the use of absorbent products is often accompanied by user-related challenges. For example, parents are constantly challenged by motivating potty-trained children who wear diapers. Similarly, parents seek to ensure their children are comfortable and therefore seek to reduce the extent to which children are exposed to moisture and / or excessive heat through their skin. Therefore, there remains a need for absorbent products that are designed to provide user information and enhance the user experience. Summary of the Invention

[0003] Some aspects of this disclosure relate to an absorbent article comprising: an outer cover having an inner surface and an outer surface; an absorbent structure having a first surface positioned adjacent to the inner surface of the outer cover and a second surface facing the wearer, the second surface opposite to the first surface. Some aspects also relate to an absorbent article comprising: an outer cover having an inner surface and an outer surface; an absorbent structure having a first surface positioned adjacent to the inner surface of the outer cover and a second surface facing the wearer, the second surface opposite to the first surface; and a reactive pattern visible at a first location on the outer surface of the outer cover, the reactive pattern comprising reactive ink that transitions from a first state to a second state upon exposure to an activation event.

[0004] In some respects, as a supplement to or alternative to any of the foregoing aspects, in the first state, the reactive graphics form a first machine-readable code at a first location on the outer surface of the outer cover, the first machine-readable code including a first digital content link.

[0005] In some respects, as a supplement to or alternative to any of the foregoing aspects, in the second state, the reactive graphics form a second machine-readable code at a first location on the outer surface of the outer cover, the second machine-readable code including a second digital content link.

[0006] In some respects, as a supplement to or alternative to any of the foregoing aspects, the second machine-readable code differs from the first machine-readable code and replaces the first machine-readable code when the reactive ink transitions from the first state to the second state, and the second digital content link differs from the first digital content link.

[0007] In some respects, as a supplement to or alternative to any of the foregoing aspects, the first machine-readable code and the second machine-readable code are QR codes.

[0008] In some respects, as a supplement to or alternative to any of the foregoing aspects, the first machine-readable code and the second machine-readable code are Quick Response (QR) codes.

[0009] In some respects, as a supplement to or alternative to any of the foregoing aspects, the first digital content link and the second digital content link are Uniform Resource Locators (URLs).

[0010] In some respects, as a supplement to or alternative to any of the foregoing aspects, the user equipment is used to scan a first machine-readable code to enable the user equipment to automatically access and display the first digital content to the user via a first digital content link, and the user equipment is used to scan a second machine-readable code to enable the user equipment to automatically access and display the second digital content to the user via a second digital content link, the second digital content being different from the first digital content.

[0011] In some respects, as a supplement to or alternative to any of the foregoing aspects, each of the first digital content link and the second digital content link may be accessible by a computing device to present at least one of written or graphic content, video, augmented reality (AR) experience, or virtual reality (VR) experience to a user.

[0012] In some respects, as a supplement to or alternative to any of the foregoing, at least one of written or graphic content, video, AR experience, or VR experience is presented via a user interface of a computing device.

[0013] In some respects, as a supplement to or alternative to any of the foregoing, absorbent products are one of diapers, toilet training pants, adult incontinence products, or feminine hygiene products.

[0014] In some respects, as a supplement to or alternative to any of the foregoing aspects, the activation event is contact with bodily fluids.

[0015] In some respects, as a supplement to or alternative to any of the foregoing aspects, the activation event is contact with urine.

[0016] In some respects, as a supplement to or alternative to any of the foregoing aspects, an activation event is one of temperature change, exposure to light, exposure to gas, or exposure to a microbial load.

[0017] Some aspects of this disclosure relate to a method comprising providing an absorbent article configured for human wear, the absorbent article including a reactive pattern visible at a first location on the exterior of the absorbent article, the reactive pattern comprising reactive ink that transitions from a first state to a second state upon exposure to an activation event.

[0018] In some respects, as a supplement or alternative to any of the foregoing aspects relating to the method, the reactive pattern forms a first machine-readable code at a first location on the exterior of the absorbent article in a first state, and forms a second machine-readable code at a first location on the exterior of the absorbent article in a second state, wherein the second machine-readable code is different from and replaces the first machine-readable code.

[0019] In some respects, as a supplement to or alternative to any of the foregoing aspects relating to the method, the method further includes: using a camera embedded in a computing device to detect a first machine-readable code; presenting first digital content based on the first machine-readable code via the computing device; and after the reactive ink has transitioned from a first state to a second state, using the camera embedded in the computing device to detect a second machine-readable code; and presenting second digital content based on the second machine-readable code by the computing device, wherein the second digital content is different from the first digital content.

[0020] In some respects, as a supplement to or alternative to any of the foregoing aspects related to this method, the first machine-readable code and the second machine-readable code are Quick Response (QR) codes.

[0021] In some respects, as a supplement or alternative to any of the foregoing aspects relating to the method, each of the first machine-readable code and the second machine-readable code is encoded with a unique URL that, when obtained by a computing device, enables the computing device to automatically access the first digital content or the second digital content via the respective unique URL of the first machine-readable code and the second machine-readable code.

[0022] In some respects, as a supplement to or alternative to any of the foregoing aspects relating to the method, each of the first digital content and the second digital content includes at least one of written or graphic content, video, augmented reality (AR) experience, or virtual reality (VR) experience.

[0023] In some respects, as a supplement to or alternative to any of the foregoing aspects relating to the method, the first and second digital content are presented via a user interface of a computing device.

[0024] In some respects, as a supplement or alternative to any of the foregoing aspects relating to the method, the first machine-readable code and the second machine-readable code are detected by scanning reactive patterns of the absorbed article using a camera of a computing device without storing any captured images or videos.

[0025] In some respects, as a supplement to or alternative to any of the foregoing aspects relating to the method, the method further includes transmitting data to a remote computing device for one or both of a first digital content and a second digital content, the data causing the remote computing device to render the first digital content or the second digital content.

[0026] In some respects, as a supplement to or alternative to any of the foregoing aspects related to this method, the absorbent product is one of a diaper, toilet training pants, adult incontinence products, or feminine hygiene products.

[0027] In some respects, as a supplement to or alternative to any of the foregoing aspects relating to this method, an activation event is one of exposure to bodily fluids, temperature changes, light, gases, or microbial loads.

[0028] Additional aspects of this disclosure will be set forth in part in the following detailed description, drawings, and claims, and in part will derive from the detailed description or may be learned by practice of this disclosure. It should be understood that both the foregoing general description and the following detailed description are exemplary and illustrative only and do not limit the scope of the disclosure. Attached Figure Description

[0029] Figure 1 This is a plan view of an example absorbent article having reactive patterns disposed thereon, according to some embodiments.

[0030] Figure 2 It is a diagram illustrating the transition of a reactive pattern from a first state to a second state according to some embodiments.

[0031] Figure 3 This is a diagram of a system for scanning and processing reactive patterns on an absorbent article, according to some embodiments.

[0032] Figure 4 Based on some implementation methods Figure 3 Detailed block diagram of the example user equipment used in the system.

[0033] Figure 5 This is a flowchart of a process for presenting unique digital content to a user based on reactive graphics on an absorbent article, according to some implementation methods.

[0034] The various objectives, aspects, features, and advantages of this disclosure will become more apparent and better understood through a detailed description taken in conjunction with the accompanying drawings, in which the same reference numerals consistently identify corresponding elements. In the drawings, the same reference numerals generally indicate the same, functionally similar, and / or structurally similar elements. Detailed Implementation

[0035] Reference will now be made in detail to various embodiments of this disclosure, one or more of which are illustrated below. Each example is provided by way of explanation rather than limitation. In view of this disclosure, it will be apparent to those skilled in the art that various modifications and variations may be made to the various embodiments described herein without departing from the scope or spirit of this disclosure.

[0036] As used herein, the term "absorbent article" refers to an article that can be placed close to or near the wearer's body (i.e., adjacent to the body) to absorb and contain various liquid, solid, and semi-solid excretions from the body. Such absorbent articles as described herein are intended to be discarded after their limited period of use, rather than washed or otherwise restored for reuse. It should be understood that, without departing from the scope of this disclosure, this disclosure applies to a wide range of disposable absorbent articles, including but not limited to diapers, diaper pants, training pants, toddler pants, swim trunks, feminine hygiene products (including but not limited to menstrual pads or menstrual pants), incontinence products and other adult care clothing, medical clothing, surgical pads and bandages, and other personal care or health care clothing.

[0037] As used herein, the term "reactive graphics" generally refers to images, patterns, text, etc., formed by ink, substances, or other materials that change in response to triggering or activating events.

[0038] Various embodiments of this disclosure relate to absorbent articles including reactive graphics. In various embodiments, the reactive graphics are configured to change in response to a triggering or activation event (e.g., in response to the presence of moisture or high temperature). For example, in some embodiments, the reactive graphics may initially appear in a first state, wherein the reactive graphics define a first machine-readable code (e.g., a QR code) including a first digital content link (e.g., a link to a website, application, image, virtual reality experience, or other digital content accessible by a user device such as a smartphone or computer). When the reactive graphics are exposed to an activation event (e.g., exposure to bodily fluids, temperature changes, etc.), the reactive graphics transition from the first state to a second state. In the second state, the reactive graphics define a second machine-readable code including a second digital content link, the second machine-readable code being unique relative to the first machine-readable code, and the second digital content link being unique relative to the first digital content link. In various embodiments, the second machine-readable code may completely replace the first machine-readable code, or the second machine-readable code may be generated by changing only a portion of the first machine-readable code.

[0039] In various embodiments, reactive graphics can be printed on, embedded in, or otherwise incorporated into absorbent articles. Compared to purely decorative graphics, the various embodiments of reactive graphics described herein are interactive and dynamic, providing varying digital content to a user (e.g., a wearer of the absorbent article or a caregiver of the wearer) when scanned using a suitable device (e.g., a smartphone or computer). Therefore, a system for detecting the aforementioned reactive graphics and presenting associated digital content to a user is also disclosed herein. This system generally includes a user-operated computing device (e.g., a smartphone) that can scan the reactive graphics (e.g., by reading a first or second machine-readable code) and present unique digital content (e.g., digital content associated with the scanned machine-readable code) to the user.

[0040] In various implementations, reactive graphics can be configured to provide enhanced user information. For example, in some implementations, reactive graphics can be configured to provide an enhanced user experience for toilet training. In particular, digital content provided in response to a user scan of the reactive graphics can be configured to track toilet training progress, provide celebratory experiences when toilet training goals are achieved, and provide encouraging content for children undergoing toilet training.

[0041] Therefore, the type of digital experience presented to the user can depend on the state of the reactive graphics. For example, if the reactive graphics respond to bodily fluids, different digital content can be presented when the absorbent article (e.g., training pants) is dry versus wet. It should also be understood that the reactive graphics and related systems described herein can be configured for a variety of absorbent article use cases, such as medical and adult care, child care, etc. Additional characteristics of absorbent materials, including reactive graphics and related systems, will be described in detail below.

[0042] Absorbent products with reactive patterns

[0043] First refer to Figure 1 According to some embodiments, an illustration of an example absorbent article 100 having a reactive pattern 102 disposed thereon is shown. Figure 1 In this illustration, absorbent article 100 is depicted as children's training pants. However, it will be understood that absorbent article 100 can be any absorbent article. Absorbent article 100 includes an outer cover 104 defining an outer surface and an inner surface. Absorbent article 100 also includes an absorbent structure 106 positioned adjacent to the inner surface of the outer cover 104. In the illustrated embodiment, absorbent article 100 also includes a liquid-permeable liner referred to herein as body side lining 108. Figure 1 As shown, the absorbent structure 106 is positioned between the outer cover 104 and the body side lining 108. The absorbent article 100 also includes an elastic waistband 110 and an elastic waistband 112, as well as elastic leg members 114 and 116 for securing the absorbent article to the user.

[0044] Generally, the absorbent article 100 can be made of a variety of different materials. In some embodiments, for example, the outer cover 104 can be made of a substantially liquid-impermeable material and can be elastic, stretchable, or non-stretchable. In various embodiments, the outer cover 104 can be a single layer of liquid-impermeable material or can include a multilayer laminated structure, wherein at least one of these layers is liquid-impermeable. For example, the outer cover 104 can include a liquid-permeable outer layer and a liquid-impermeable inner layer, which are suitably bonded together by a laminating adhesive. For example, in some embodiments, the liquid-permeable outer layer can be a spunbond polypropylene nonwoven web. The spunbond web can have a basis weight of, for example, from about 15 gsm to about 25 gsm.

[0045] In various embodiments, the inner layer of the outer cover 104 may be impermeable to both liquids and vapors, or it may be impermeable to liquids but permeable to vapors. The inner layer is suitably made of a thin plastic film, but other flexible, impermeable materials may also be used. The inner layer typically prevents waste from wetting items such as bed sheets and clothing, as well as the wearer and caregiver. A suitable impermeable membrane may be a polyethylene film with a thickness of about 0.2 mm. Suitable breathable materials for use as the inner layer are microporous polymer membranes or nonwoven fabrics that have been coated or otherwise treated to impart the desired level of impermeability to liquids. Other “impermeable” elastic membranes that may be used as the inner layer include membranes made of block copolymers (e.g., styrene-ethylene-butene-styrene or styrene-isoprene-styrene block copolymers).

[0046] The body side lining 108 can be made of a variety of web materials, such as synthetic fibers, natural fibers, combinations of natural and synthetic fibers, porous foam, honeycomb foam, porous plastic film, etc. Various woven and nonwoven fabrics can be used for the body side lining 180. However, it will be understood that the body side lining 108 is generally compliant, soft-feeling, and non-irritating to the wearer's skin. For example, the body side lining 108 can be made of meltblown or spunbond webs of polyolefin fibers. In some embodiments, the body side lining 108 can also be a bonded carded web composed of natural and / or synthetic fibers. In some embodiments, the body side lining 108 is a nonwoven bicomponent web with a basis weight of about 27 gsm. The nonwoven bicomponent web can be a spunbond bicomponent web or a bonded carded bicomponent web. Suitable bicomponent short fibers include polyethylene / polypropylene bicomponent fibers. In this particular embodiment, polypropylene forms the core, and polyethylene forms the sheath of the fiber. However, other fiber orientations are also possible.

[0047] The absorbent structure 106 generally comprises one or more materials suitable for absorbing liquids. The absorbent structure 106 can be formed from, for example, cellulose fibers (e.g., wood pulp fibers), other natural fibers, synthetic fibers, woven or nonwoven sheets, loosely woven webs or other stabilizing structures, superabsorbent materials, binder materials, surfactants, selected hydrophobic materials, pigments, detergents, odor control agents, and combinations thereof. In some embodiments, the absorbent structure 106 is a matrix of cellulose fibers and superabsorbent hydrogel forming particles. The cellulose fibers may include blends of wood pulp fibers. A preferred type of fiber is bleached, highly absorbent wood pulp primarily comprising cork fibers.

[0048] In some embodiments, the absorbent structure 106 may comprise a superabsorbent material present in the absorbent mesh, ranging from about 0% to about 90% by weight of the total weight of the mesh. The mesh may have a density ranging from about 0.1 to about 0.45 grams per cubic centimeter. Superabsorbent materials are well known in the art and can be selected from natural, synthetic, and modified natural polymers and materials. For example, the superabsorbent material may be an inorganic material, such as silica gel; or an organic compound, such as a crosslinked polymer. Typically, a superabsorbent material is capable of absorbing at least 15 times its weight in liquid, and suitably, more than about 25 times its weight in liquid.

[0049] In addition to cellulose fibers and superabsorbent materials, the absorbent structure 106 may also include adhesive elements and / or synthetic fibers that provide stability and adhesion upon appropriate activation. Additives such as adhesives may have the same or different appearance as the cellulose fibers; for example, such additives may be fibrous, granular, or liquid; adhesives may have curable or thermosetting properties. Such additives can enhance the integrity of the bulk absorbent structure and, alternatively, provide adhesion between the surface layers of the folded structure. These absorbent materials can be formed into a web structure using a variety of conventional methods and techniques. For example, absorbent webs can be formed using dry forming techniques, air-laid web techniques, carding techniques, melt-blowing or spunbonding techniques, wet forming techniques, foam forming techniques, and combinations thereof. Layered and / or laminated structures may also be suitable.

[0050] In some embodiments, the absorbent web material forming at least a portion of the absorbent structure 106 may be a co-forming material. The term "co-forming material" generally refers to a composite material comprising a mixture of thermoplastic fibers and a second non-thermoplastic material or a stabilized matrix. For example, a co-forming material can be produced by a process in which at least one meltblown die is positioned near a chute through which other materials are added to the web while it is being formed. Such other materials may include, but are not limited to, fibrous organic materials such as wood or non-wood pulp, such as cotton, rayon, recycled paper, pulp fluff, and superabsorbent particles or fibers, inorganic absorbent materials, treated polymer short fibers, etc. Any of a variety of synthetic polymers can be used as the melt-spun component of the conformal material. For example, in some embodiments, thermoplastic polymers may be used. Some examples of suitable thermoplastics that may be used include polyolefins such as polyethylene, polypropylene, polybutene, etc.; polyamides; and polyesters. In one embodiment, the thermoplastic polymer is polypropylene.

[0051] It is also conceivable to use an elastic absorbent web structure. For example, an elastic co-shaped absorbent structure having about 35% to about 65% by weight of wettable short fibers and more than 35% to about 65% by weight of elastic thermoplastic fibers can be used to define the absorbent pad structure according to the invention. As another example, a suitable absorbent elastic nonwoven material may comprise a matrix of thermoplastic elastic nonwoven filaments present in an amount of about 3% to less than about 20% by weight of the material, wherein the matrix comprises multiple absorbent fibers and superabsorbent material, each comprising about 20% to 77% by weight of the material. Absorbent elastic nonwoven materials are suitable for a wide variety of personal care products where softness and comfort, as well as absorbency and elasticity, are crucial. The absorbent web may also be a nonwoven web comprising synthetic fibers. The web may include additional natural fibers and / or superabsorbent material. The web may have a density in the range of about 0.1 to about 0.45 grams per cubic centimeter. The absorbent web may alternatively be foam.

[0052] like Figure 1 As shown, the absorbent article 100 also includes side sheets 118 and 120. In some embodiments, side sheets 118 and 120 may be permanently bonded together or may be releasably attached to each other. For example, in the illustrated example, side sheets 118 and 120 are shown in an unattached state. Generally, side sheets 118 and 120 are made of an elastic material, such as an elastic laminate. Also... Figure 1 As shown, the absorbent article 100 defines a longitudinal centerline 122, a transverse centerline 124, a first or front longitudinal end edge 126, and a second or rear longitudinal end edge 128. The longitudinal axis lies in the plane of the article and is generally parallel to the vertical plane that divides a standing wearer into left and right halves when wearing the article. The transverse axis lies in a plane of the article that is generally perpendicular to the longitudinal axis.

[0053] Generally, the absorbent article 100 can be divided along a longitudinal axis into a front region 130, a rear region 132, and a crotch region 134 positioned between the front region 130 and the rear region 132. In some embodiments, the front region 130, the rear region 132, and the crotch region 134 may all have approximately the same length in the longitudinal direction. Additionally, the absorbent article 100 can be divided into a front half and a rear half. For example, the front half may extend from the front edge of the product to the midpoint in the longitudinal direction, while the rear half may extend from the rear edge of the product to the midpoint.

[0054] Still referencing Figure 1The reactive pattern 102 is shown as being visible on the outer surface of the absorbent article 100. In some embodiments, the reactive pattern 102 is printed on the outer surface of the absorbent article 100. For example, the reactive pattern 102 may be printed on the outer cover 104. In some embodiments, the reactive pattern 102 is printed on or otherwise embedded in another layer of the absorbent article 100 such that the reactive pattern remains visible from the outside of the absorbent article 100. For example, the reactive pattern 102 may be embedded in an additional substrate (not shown) positioned between the outer cover 104 and the absorbent structure 106. It will also be understood that the reactive pattern 102 may be applied so that it is visible from the inner surface of the article. For example, when applied to a feminine hygiene product, the reactive pattern 102 may be more appropriately positioned so that it is visible from an inner surface adjacent to the wearer's body. To be visible from the inner surface, the reactive pattern may be applied to a liquid-permeable body-side liner, a surge layer, a portion of the absorbent core, or in some embodiments even to the outer cover material.

[0055] Generally, reactive pattern 102 is any pattern that changes appearance in response to a trigger, such as exposure to an activation event. More specifically, reactive pattern 102 can be formed from ink, substance, or other materials that react to or otherwise change (e.g., by appearing, disappearing, changing color, or shading) in response to an activation event. In various embodiments herein, activation events are described as exposure to bodily fluids (e.g., urine, sweat, saliva, blood, tears, etc.). However, it should be understood that reactive pattern 102 can be configured to react to a variety of desired activation events, such as temperature changes or exposure to light, gases, microbial loads (bacteria, fungi, viruses, or combinations thereof), etc. Therefore, based on the desired activation event, reactive pattern 102 can be formed from any suitable reactive ink (or other suitable responsive substance or material).

[0056] In some embodiments, the reactive pattern 102 is formed from two or more different inks, each reacting differently to an activation event. For example, the reactive pattern 102 may be formed from a first ink that fades or disappears upon exposure to an activation event and a second ink that appears (or otherwise becomes visible). As another example, the inks used to form the reactive pattern 102 may each change to a different color upon exposure to an activation event. In some embodiments, the reactive pattern 102 is partially formed from non-reactive or permanent inks that do not react to an activation event. For example, a first portion of the reactive pattern 102 may be formed from permanent ink, and a second portion of the reactive pattern 102 may be formed from reactive ink, such that only the second portion of the reactive pattern 102 is modified in response to an activation event.

[0057] In some embodiments, at least a portion of the reactive ink forming the reactive pattern 102 is a color-changing reactive patterning component. In some such embodiments, the color-changing reactive patterning component may include a matrix-forming component, a colorant, a surfactant, and / or a pH adjuster. In some embodiments, the matrix-forming component may be a water-insoluble film-forming polymer or ink base, such as an aniline varnish having an organic solvent base. In some embodiments, the colorant may be a pH indicator capable of changing color in response to the presence of a fluid, such as a charged pH indicator. In some embodiments, the surfactant may include a charged surfactant that attracts the colorant or a combination of a neutral surfactant and a charged surfactant that attracts the colorant. In some embodiments, the pH adjuster may include low-molecular-weight organic acids and high-molecular-weight organic acids. The matrix-forming component may include, for example, a (meth)acrylate / (meth)acrylamide copolymer, a polyurethane adhesive, methylcellulose, and / or a copolymer of vinylpyrrolidone and dimethylaminopropylmethacrylamide.

[0058] In some embodiments, a water-resistant and water-insoluble color-changing composition is used for at least a portion of the reactive pattern 102. The color-changing composition, when dried, can form films of various patterns and shapes on a substrate, and these films can produce color upon contact with an aqueous medium. In some embodiments, the composition comprises various components dissolved in a volatile organic solvent medium. These components may include colorless dyes or combinations of colorless dyes, electron-withdrawing color developers or combinations of color developers that, under suitable conditions, can form color-developing complexes when combined with colorless dyes, and separators or combinations of separators that prevent the formation of color-developing complexes when dissolved in a sufficient amount in the system. In some embodiments, the components may be contained within a polymer encapsulation matrix. The encapsulation matrix may contain at least one polymer resin capable of forming a film with good adhesion on the substrate surface. In addition to the foregoing, the solution may also contain various other additives to adjust physical properties.

[0059] Colorless dyes are compounds that can interconvert between two or more forms, each with a different color. These forms are distinguished by the presence of one or more carbon-carbon, carbon-oxygen, carbon-nitrogen, or oxygen-nitrogen bonds, which are present in one form but not in the other. For example, appropriately substituted polyarylmethane compounds undergo a pH-dependent transition between a colored cationic compound and a colorless lactone:

[0060]

[0061] At any given pH, the advantage of one form over another can be controlled by selecting the R group surrounding the benzene ring.

[0062] In some embodiments, the colorless dye is phthaloyl colorless dye, arylmethane colorless dye, fluorane colorless dye, and combinations thereof.

[0063] In some embodiments, the colorless dye is a triarylmethane-based dye, such as 3,3-bis(p-dimethylaminophenyl)-6-dimethylaminophthalide, 3,3-bis(p-dimethylaminophenyl)phthalide, 3-(p-dimethylaminophenyl)-3-(1,2-dimethylindol-3-yl)phthalide, 3-(p-dimethylaminophenyl)-3-(2-methylindol-3-yl)phthalide, 3,3-bis(1,2-dimethylindol-3-yl)-5-dimethylaminophthalide, 3,3-bis(1,2-dimethylindol-3-yl)-6-dimethylaminophthalide, 3,3-bis(9-ethylcarbazole-3-yl)-6-dimethylaminophthalide, 3,3-bis(2-phenylindol-3-yl)-6-dimethylaminophthalide, 3-p-dimethylaminophenyl-3-(1-methylpyrrole-3-yl)-6-dimethylaminophthalide, etc.

[0064] In some embodiments, the colorless dye is a diarylmethane-based dye, such as 4,4′-bis(dimethylamino)diphenylmethylbenzyl ether, N-halophenyl colorless auramine, N-2,4,5-trichlorophenyl-colorless auramine, etc.

[0065] In some embodiments, the colorless dye is a lactam-based dye, such as rhodamine-B-aniline lactam, rhodamine-(p-nitroaniline) lactam, rhodamine-(o-chloroaniline) lactam, etc.

[0066] In some embodiments, the colorless dye is a fluorane-based dye, such as 3-dimethylamino-7-methoxyfluorane, 3-diethylamino-6-methoxyfluorane, 3-diethylamino-7-methoxyfluorane, 3-diethylamino-7-chlorofluorane, 3-diethylamino-6-methyl-7-chlorofluorane, 3-diethylamino-6,7-dimethylfluorane, 3-(N-ethyl-p-toluidine)-7-methylfluorane, 3-diethylamino-7-(N-methylamino)fluorane, 3-diethylamino-7-dibenzylaminofluorane, 3- Diethylamino-7-(N-methyl-N-benzylamino)fluorane, 3-diethylamino-7-(N-chloroethyl-N-methylamino)fluorane, 3-diethylamino-7-N-diethylaminofluorane, 3-(N-ethyl-p-toluamino)-6-methyl-7-phenylaminofluorane, 3-(N-ethyl-p-toluamino)-6-methyl-7-(p-toluamino)fluorane, 3-diethylamino-6-methyl-7-phenylaminofluorane, 3-dibutylamino-6-methyl-7-phenylaminofluorane, 3-diethylamino-7- (2-Methyl esterylphenylamino)fluorane, 3-(N-cyclohexyl-N-methylamino)-6-methyl-7-phenylaminofluorane, 3-pyrrolyl-6-methyl-7-phenylaminofluorane, 3-piperidinyl-6-methyl-7-phenylaminofluorane, 3-diethylamino-6-methyl-7-(2,4-dimethylamino)fluorane, 3-diethylamino-7-(o-chlorophenylamino)fluorane, 3-dibutylamino-7-(o-chlorophenylamino)fluorane, 3-pyrrolyl-6-methyl-7-(p-butylphenylamino)fluorane, 3-( N-Methyl-N-n-pentylamino)-6-methyl-7-phenylaminofluorane, 3-(N-ethyl-N-n-pentylamino)-6-methyl-7-phenylaminofluorane, 3-(N-ethyl-N-isopentylamino)-6-methyl-7-phenylaminofluorane, 3-(N-methyl-N-n-hexylamino)-6-methyl-7-phenylaminofluorane, 3-(N-ethyl-N-n-hexylamino)-6-methyl-7-phenylaminofluorane, 3-(N-ethyl-N-β-ethylhexylamino)-6-methyl-7-phenylaminofluorane, etc.

[0067] The separator can be any known component reagent that exhibits good solubility in both water and organic solvents. In some embodiments, the separator can be an uncharged neutral molecule, such as a polyalkylene glycol with a solubility of <1000 Daltons; a polyepoxide with a solubility of <10000 Daltons; a block copolymer of polyoxyethylene polyoxypropylene glycol, polyoxyethylene nonylphenyl ether, polyoxyethylene styrene phenyl ether; and combinations thereof.

[0068] In some embodiments, the separator may be glycerol; dodecylamine; 2,4,4-trimethyl-2-oxazoline; polyolefin glycols, such as polyethylene glycol, polypropylene glycol, and copolymers of ethylene glycol and propylene glycol; polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, polyoxyethylene nonylphenyl ether, polyoxyethylene sorbitan monolaurate, polyethylene glycol monostearate, and combinations thereof.

[0069] In some embodiments, the activation event is exposure to bodily fluids, particularly urine. Urine typically has a pH of 4.6 to 8, and healthy children excrete urine with a pH of approximately 6. However, certain medical conditions are characterized by abnormal pH levels in urine, and some embodiments of the invention relate to the diagnosis and / or detection of abnormal urine pH levels. For example, a characteristic of urinary tract infections may be an elevated urine pH level relative to healthy urine, and an activation event may include exposure to fluids having such an elevated pH level. Therefore, methods for detecting urinary tract infections using the compositions and articles disclosed herein are provided herein. On the other hand, a characteristic of metabolic / respiratory acidosis may be a decreased urine pH level, and an activation event may include exposure to fluids having such a decreased pH level. Therefore, methods for detecting metabolic / respiratory acidosis (and related symptoms) using the compositions and articles disclosed herein are provided herein.

[0070] In some embodiments, the activation event is exposure to a fluid with a pH less than 9, less than 8.5, less than 8, less than 7.5, less than 7.0, less than 6.5, less than 6, less than 5.5, less than 5, less than 4.5, or less than 4. In some embodiments, the activation event is exposure to a fluid with a pH of 4 to 5.5, 4.5 to 6, 5 to 6.5, 5 to 6, 5 to 7, 6 to 7, 6 to 8, 7 to 8, 7 to 9, or 8 to 9. In some embodiments, the listed pH levels are related to urine. In some embodiments, the listed pH levels are related to saliva.

[0071] In some embodiments, the reactive graphic 102 defines at least one machine-readable code, which is formed (e.g., printed) at least partially using reactive inks as described above. A machine-readable code is any graphic or symbol that stores information that can be obtained or accessed by a suitable computing device via scanning. Machine-readable codes can include, for example, 1D codes such as barcodes and / or 2D codes such as Quick Response (QR) codes. Figure 1In the example, reactive graphic 102 includes a QR code, which is a 2D machine-readable code. For example, a 2D code can store information in various ways (e.g., in rows and columns or in a circular pattern). In some cases, a 2D code can use color to store information in conjunction with orientation. In some implementations, a 2D code can include a matrix pattern that includes finder and alignment components in addition to data components. In some implementations, a 2D code stores text that is immediately available once scanned using a suitable computing device. However, more commonly, a 2D code can include embedded links (e.g., URLs) to websites or other remote resources. In some implementations, links can be accessed automatically when a 2D code is scanned. For example, scanning... Figure 1 The QR code shown can automatically navigate a scanning device (such as a user's smartphone) to a website containing information related to the absorbent product 100.

[0072] In some embodiments, the reactive graphic 102 is incorporated into a scene, pattern, or other decorative graphic on the absorbent article 100 to make the code less conspicuous. For example, a scene may be printed on the absorbent article 100, comprising various images such as figures. The machine-readable code may be incorporated into the figures or into the background of the scene. In some embodiments, at least some components of the scene are constituted by permanent graphics surrounding the reactive graphic 102, which includes the machine-readable code.

[0073] In some embodiments, the reactive pattern 102 includes a first machine-readable code in a first or "initial" state. This first or "initial" state generally occurs before the reactive pattern 102 is exposed to an activation event. Upon exposure to an activation event (e.g., bodily fluids, temperature changes, etc.), the reactive pattern 102 transitions from the first state to a second state different from the first state. In some such embodiments, this transition involves changing the machine-readable code from a first machine-readable code to a second machine-readable code (e.g., from a first QR code to a second QR code different from the first QR code). For example, the first machine-readable code may be modified to the second machine-readable code, or the first machine-readable code may be completely replaced by the second machine-readable code.

[0074] In some embodiments, the absorbent article 100 may also include, or alternatively may include, a material that reacts to an activation event (referred to herein as a "reactive material"). A reactive material is any material that changes at least one visual or measurable characteristic in response to an activation event. For example, the texture, opacity, optical density, or any other property of a reactive material may change when exposed to an activation event (e.g., heat, moisture, etc.). In some such embodiments, the outer cover 104 of the absorbent article 100 may be formed at least partially of such a reactive material. For example, the entire outer cover 104 may be formed of a reactive material, or a portion of the outer cover 104 (e.g., the portion containing the reactive pattern 102) may be formed of a reactive material. In some embodiments, a reactive material is included in addition to the reactive pattern 102 to provide an indication of exposure to two different activation events. For example, the reactive pattern 102 may react to moisture, and the reactive material may react to heat. In other embodiments, a reactive material may be used instead of the reactive pattern 102.

[0075] Figure 2 An example of a reactive graph 102 in response to an activation event, according to some embodiments, is illustrated. Specifically, Figure 2 A reactive graphic 102 is shown depicting the transition from a first machine-readable code 202 to a second machine-readable code 204. In this example, the first machine-readable code 202 is shown as gradually fading until it is replaced by the second machine-readable code 204. For example, the first machine-readable code 202 can be printed using a first ink that gradually brightens or disappears in response to an activation event, while the second machine-readable code 204 can be printed using a second ink that gradually darkens or appears in response to an activation event. However, it should be understood that the first machine-readable code 202 can be replaced by or otherwise modified to the second machine-readable code 204 in another manner as described above. For example, the first machine-readable code 202 can be printed using reactive and non-reactive or permanent inks such that, upon exposure to an activation event, the reactive portion of the first machine-readable code 202 changes color, darkens, or otherwise visually alters to produce the second machine-readable code 204. It is worth noting that, as Figure 2 As shown, the second machine-readable code 204 is generally located in the same position or area of ​​the absorbent article 100 as the first machine-readable code 202. In other words, within this area of ​​the reactive pattern 102, the first machine-readable code 202 is replaced by or modified to the second machine-readable code 204, which makes the identification and positioning of the reactive pattern 102 for scanning more user-friendly.

[0076] While the reactive pattern 102 is generally described herein as being positioned on the absorbent article 100, it should be understood that in various embodiments, the reactive pattern 102 may be incorporated into other types of products (e.g., printed on other types of products). For example, in some embodiments, the reactive pattern 102 may be disposed on a cleaning wipe. In some such embodiments, the cleaning wipe may be a disposable wipe, towel, or cloth for general cleaning. In some such embodiments, the reactive pattern 102 may transition from a first state to a second state (e.g., from a first machine-readable code 202 to a second machine-readable code 204) when the cleaning wipe is exposed to or comes into contact with an activator such as a cleaning chemical (e.g., alcohol, detergent, etc.). In other such embodiments, the activator may be a specific contaminant on the surface or object being cleaned. In some embodiments, the cleaning wipe may have multiple reactive patterns positioned thereon, each of which reacts to a different activator.

[0077] Digital content delivery

[0078] Now for reference Figure 3 According to some embodiments, a diagram of a system 300 for scanning and processing reactive graphics on an absorbent article is shown. In this example, the reactive graphics are reactive graphics 102, which include 2D machine-readable code and are incorporated into the absorbent article 100 (e.g., printed on the absorbent article). As shown, a suitable user device 400 can be used to scan the reactive graphics 102 to access or obtain information embedded in the reactive graphics. In some embodiments, the user device 400 is a handheld computing device including a camera or optical scanner. For example, the user device 400 may be a smartphone; however, it should be understood that the user device 400 may be any computing device capable of scanning machine-readable code. For example, the user device 400 may be a desktop computer that includes a separate handheld or mounted scanner for scanning machine-readable code. In other examples, the user device 400 may be an AR / VR headset, smart glasses, a security device (e.g., a security camera), or any other device with a camera or image sensor capable of scanning machine-readable code. In some embodiments, when the outer cover 104 of the absorbent article 100 is at least partially formed of a reactive material, the user equipment 400 is configured to detect changes in the visual properties of the outer cover 104. For the sake of brevity, such embodiments are not described in detail herein; however, it will be understood that the following description of scanning the reactive pattern 102 generally applies to embodiments in which the user equipment 400 scans the reactive material.

[0079] When scanning the machine-readable code of reactive graphics 102, user device 400 can be configured to perform various operations based on information embedded within the machine-readable code. For example, user device 400 can simply display text embedded within the machine-readable code via a user interface. In some embodiments, user device 400 automatically accesses links embedded within the machine-readable code. Alternatively, in some embodiments, user device 400 displays the extracted links to the user, allowing the user to manually select which links to present along with associated digital content. As described above, for example, machine-readable code may include URLs that can be automatically accessed to retrieve digital content (e.g., images, videos, etc.). In particular, embedded links within machine-readable code can be accessed by user device 400 to present a digital user experience. As described herein, “digital content” generally refers to one or more images, videos, text, graphics, animations, music, etc. In some cases, digital content is interactive and may therefore be referred to herein as a “digital experience.” Therefore, when presenting a digital experience to a user, user device 400 can receive user input related to the digital experience.

[0080] It is worth noting that, based on the state of the reactive graphic 102 during scanning, at least two different sets or types of digital content can be presented to the user of the user device 400. (Reference) Figure 2 For example, when scanning the first code 202, first digital content can be presented, and when scanning the second machine-readable code 204 (e.g., after the reactive graphic 102 has been exposed to an activation event), second digital content can be presented. In this way, the digital content provided to the user is context-dependent and associated with the state of the reactive graphic 102 (and thus with the absorbent article 100).

[0081] In some embodiments, the absorbent article includes a child training pant with reactive graphics 102 disposed thereon. The reactive graphics 102 include a first machine-readable code that reacts with bodily fluids (e.g., urine) to transform into a second machine-readable code. The first machine-readable code, visible before exposure to bodily fluids (e.g., when the training pant is dry), can be scanned by user device 400 to present a first digital content (e.g., video, text and / or graphics, music, etc.) to the user. After the reactive graphics 102 is exposed to bodily fluids (e.g., when the training pant is wet), the first machine-readable code is replaced by a second machine-readable code, which can then be scanned by user device 400 to present a second, different experience to the user (e.g., different video, text and / or graphics, music, etc.).

[0082] In some implementations, user equipment 400 obtains or accesses digital content by communicating with remote system 302. In some such implementations, remote system 302 may include computing devices (e.g., servers) connected to the Internet or another type of network, enabling user equipment 400 to send data to and / or receive data from the remote system. For example, user equipment 400 may use links embedded in machine-readable code within reactive graphics 102 to automatically navigate to a website or web service hosted by remote system 302. In other words, remote system 302 may maintain and provide data related to various digital content, which is then remotely accessed by user equipment 400 for presentation to the user. In this way, remote system 302 can handle at least a portion of the computational burden associated with presenting digital content.

[0083] In some embodiments, user equipment 400 may further communicate with auxiliary device 304 to present digital content. For example, user equipment 400 may “broadcast” or share digital content with auxiliary device 304. More specifically, in some embodiments, user equipment 400 may transmit digital content data to auxiliary device 304 so that auxiliary device 304 presents the digital content. Auxiliary device 304 may include a local computing device and / or a computing device owned and / or operated by a user of user equipment 400. For example, auxiliary device 304 may include smart devices such as televisions, monitors, speakers, tablets, auxiliary smartphones, etc. In some embodiments, auxiliary device 304 may include computing devices capable of presenting virtual reality (VR) and / or augmented reality (AR) experiences to a user. For example, auxiliary device 304 may include VR / AR headsets, glasses, etc.

[0084] Now for reference Figure 4According to some embodiments, a detailed block diagram of user equipment 400 is shown. As described above, user equipment 400 is generally any computing device capable of scanning machine-readable code (such as QR codes). In some embodiments, user equipment 400 is a handheld computing device, such as a smartphone or tablet. User equipment 400 is shown as including processing circuitry 402, which includes a processor 404 and memory 410. Processor 404 may be a general-purpose processor, application-specific integrated circuit (ASIC), one or more field-programmable gate arrays (FPGAs), a set of processing components, or other suitable electronic processing architecture. In some embodiments, processor 404 is configured to execute program code stored on memory 410 to cause user equipment 400 to perform one or more operations, as described in more detail below. In some embodiments, user equipment 400 is part of another computing device (not shown), such as a server. In some such embodiments, components of user equipment 400 described herein may be shared or identical with a host device. It will also be understood that various functions of user equipment 400 described herein may be implemented by other (e.g., remote) computing devices. For example, in some cases, user equipment 400 is used only to scan reactive graphics 102, but the processing of reactive graphics 102 is handled by another computing device.

[0085] Memory 410 may include one or more devices (e.g., memory cells, memory devices, storage devices, etc.) for storing data and / or computer code to perform and / or facilitate the various processes described in this disclosure. In some embodiments, memory 410 includes a tangible (e.g., non-transitory) computer-readable medium storing code or instructions executable by processor 404. A tangible computer-readable medium refers to any physical medium capable of providing data that enables user equipment 400 to operate in a particular manner. Examples of tangible computer-readable media may include, but are not limited to, volatile, non-volatile, removable, and non-removable media implemented using any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Thus, memory 410 may include RAM, ROM, hard disk drive storage devices, temporary storage devices, non-volatile memory, flash memory, optical memory, or any other suitable memory for storing software objects and / or computer instructions. Memory 410 may include database components, object code components, scripting components, or any other type of information structure for supporting the various activities and information structures described in this disclosure. The memory 410 may be communicatively connected to the processor 404, for example via processing circuitry 402, and may include computer code for (e.g. by the processor 404) performing one or more of the processes described herein.

[0086] Although shown as separate components, it will be understood that processor 404 and / or memory 410 can be implemented using a variety of different types and numbers of processors and memories. For example, processor 404 may represent a single processing device or multiple processing devices. Similarly, memory 410 may represent a single memory device or multiple memory devices. Additionally, in some embodiments, user device 400 may be implemented within a single computing device (e.g., a server, a enclosure, etc.). In other embodiments, user device 400 may be distributed across multiple servers or computers (e.g., potentially existing in distributed locations). For example, user device 400 may include multiple distributed computing devices (e.g., multiple processors and / or memory devices) communicating with each other, cooperating to perform operations. For example, but not limitingly, applications may be partitioned in a manner that allows concurrent and / or parallel processing of instructions to the application. Alternatively, data processed by the application may be partitioned in a manner that allows concurrent and / or parallel processing of different portions of the dataset by two or more computers. For example, user device 400 may employ virtualization software to provide the functionality of multiple computing devices.

[0087] The memory 410 is shown to include a code processing engine 412 configured to detect machine-readable codes and extract embedded information. In some embodiments, to detect machine-readable codes, the code processing engine 412 may continuously process image data from the image capture unit 420 of the user device 400. The image capture unit 420 may be any device or group of components capable of capturing image data and / or scanning machine-readable codes. For example, the image capture unit 420 may be a camera (e.g., a smartphone camera), a barcode scanner, an optical scanner, etc. Therefore, the code processing engine 412 may continuously process the image data captured by the image capture unit 420 to detect machine-readable codes and, once detected, extract information from the machine-readable codes. In some embodiments, the code processing engine 412 utilizes artificial intelligence (AI) or machine learning (ML) to detect and extract information from machine-readable codes. However, it should be understood that the code processing engine 412 may more generally use any suitable technology or algorithm to process machine-readable codes. Typically, the information extracted from machine-readable codes (e.g., QR codes) is an alphanumeric string. For example, a QR code (such as reactive graphic 102) may contain a string that forms a link (such as a URL) to an external resource (such as a website).

[0088] The memory 410 is further shown as including a digital experience (DX) generator 414 that generates and presents digital content and interactive experiences to a user. In some embodiments, the DX generator 414 uses information extracted from machine-readable code by the code processing engine 412 to generate the digital content. For example, in response to the code processing engine 412 extracting a URL from a QR code, the DX generator 414 can be configured to automatically follow the URL to access a remote resource (e.g., a webpage) and / or retrieve additional information. In some embodiments, the digital content is as simple as text or images that can be presented to a user. However, the DX generator 414 can also be configured to acquire and present videos, music, etc. In some embodiments, the DX generator 414 can use any form of digital media to generate digital experiences (e.g., interactive digital content). In some embodiments, the DX generator 414 is configured to retrieve predefined or created digital content from a remote system 302 and / or a digital content database, rather than directly generating digital content or experiences.

[0089] In some implementations, the digital content is presented via a user interface 422 of user equipment 400. The user interface 422 generally includes a display (e.g., an LED or LCD display) and in some implementations may include user input devices (e.g., a mouse, keyboard, touchscreen, etc.). In some implementations, the user interface 422 also includes components such as speakers or lights to provide additional output to the user. In some implementations, the digital content is presented via an external device (e.g., one of the additional devices in additional device 304). In some such implementations, the digital content may be presented via a television, tablet computer, or another computing device remote from user equipment 400. For example, user equipment 400 may "broadcast" a digital experience to another device.

[0090] In some implementations, the digital content may include AR / VR content (e.g., which can be considered a "digital experience"), or in other words, the digital content may be presented using AR / VR. For example, a digital experience including graphics, video, text, etc., may be presented to a user in an AR / VR environment. In some such implementations, memory 410 may include an AR / VR engine 416 that generates AR / VR content based on the acquired digital content data. For example, AR / VR engine 416 may utilize additional digital content (e.g., graphics, video, etc.) to overlay (e.g., from image capture unit 420) a video feed to generate an AR experience. In some implementations, the AR / VR content is displayed via a separate device (e.g., one of the additional devices in additional device 304), such as a VR headset worn by a user. In some such implementations, AR / VR engine 416 may generate a virtual environment populated with content related to digital content provided by machine-readable code, which is then displayed via a separate device.

[0091] In some implementations, the DX generator 414 is further configured to receive user input based on the presented digital content. For example, a user may interact with the presented content (e.g., select an item from a list, enter text, speak, etc.), and these user interactions may be detected and processed by the DX generator 414. In some implementations, user interactions and / or data from the scanned machine-readable code may be stored in a database shown as storage device 418. In some implementations, storage device 418 is used to track the scanned code to detect changes and provide additional feedback to the user. For example, information such as the time the code was scanned, the state of the code, whether the state of the code changed between scans, and the amount of time between scans may be tracked, which can provide the user with further insights.

[0092] For example, consider the scenario described above related to children's training pants. User device 400 can be configured to record the state of reactive graphic 102 in response to an initial scan, and subsequent scans of reactive graphic 102 can be compared to the initially recorded state, which can affect the digital content presented to the user. In the toilet training example, if it is determined that reactive graphic 102 has not changed state between scans (e.g., indicating that the wearer has not urinated in the training pants), a celebratory digital "experience" can be presented. At this point, it will be understood that reactive graphic 102 does not necessarily need to transition from a first state to a second state to present different or unique digital content to the user. To continue the previous example, a crown (e.g., a crown image, an AR crown, etc.) can be presented to the toilet training child during the first scan of reactive graphic 102 without transitioning to the second state, and a crown and scepter (e.g., a crown and scepter image, an AR crown and scepter, etc.) can be presented during the second scan of reactive graphic 102 without transitioning to the second state (e.g., indicating that the child should keep the absorbent material dry between scans of reactive graphic 102).

[0093] Still referencing Figure 4 User equipment 400 is also shown to include a communication interface 424 that facilitates communication between user equipment 400 and any external components or devices, including remote system 302 and / or additional devices 304. Therefore, communication interface 424 may be or may include a wired or wireless communication interface (e.g., jack, antenna, transmitter, receiver, transceiver, wired terminal, etc.) or a combination of wired and wireless communication interfaces for data communication. In some embodiments, communication via communication interface 424 is direct (e.g., local wired or wireless communication) or via a network (e.g., WAN, Internet, cellular network, etc.). For example, communication interface 424 may include one or more Ethernet ports for communicatively coupling user equipment 400 to a network (e.g., the Internet). In another example, communication interface 424 may include a wireless (e.g., WiFi) transceiver for communication via a wireless communication network. In yet another example, communication interface 424 may include a cellular or mobile phone communication transceiver and / or a short-range transceiver (e.g., ).

[0094] While the user equipment 400 itself is generally capable of external communication to retrieve and / or present digital content, it should be noted that extensive processing of machine-readable code (e.g., code detection, information extraction, etc.) can be performed locally by various components of the memory 410 to protect user privacy. For example, as described above, the code processing engine 412 can detect machine-readable code and extract data without transmitting the data externally to the user equipment 400 (e.g., transmitting an image externally to the user equipment). In this way, user privacy is protected. Additionally, in some embodiments, the code processing engine 412 is configured to prevent images from being captured while searching for machine-readable code. As noted above, for example, the image capture unit 420 may be a camera integrated into the user equipment 400 and thus capable of capturing images; however, the code processing engine 412 can (e.g., by disabling the image capture button) prevent images from being captured while searching for machine-readable code to prevent the storage of images of the absorbent article 100.

[0095] Now for reference Figure 5 According to some embodiments, a flowchart of a process 500 for presenting unique digital content to a user based on reactive graphics on an absorbent article is shown. In some embodiments, as described above, process 500 is implemented at least in part by user equipment 400. It will be understood that certain steps of process 500 may be optional, and in some embodiments, process 500 may be implemented using fewer than all steps. It will also be understood that... Figure 5 The order of steps shown is not intended to be restrictive.

[0096] At step 502, a first machine-readable code disposed on the absorbent article is detected. Specifically, as described above, the absorbent article may be an absorbent article 100 including a reactive pattern 102. Therefore, the first machine-readable code may correspond to a first or "initial" state of the reactive pattern 102 and is thus a 1D or 2D machine-readable code (e.g., a QR code) formed at least partially by reactive ink that changes at least one visual characteristic in response to an activation event. In this respect, although not explicitly stated... Figure 5 As shown, but it should be understood, the absorbent article 100 on which the reactive pattern 102 is arranged can be provided prior to the initiation process 500. However, the first machine-readable code can be detected using any suitable computing device, such as user equipment 400. For example, user equipment 400 can be a smartphone with an integrated camera capable of detecting the first machine-readable code. In some embodiments, user equipment 400 is configured to continuously scan for machine-readable codes until the first machine-readable code is detected.

[0097] At step 504, first digital content is presented to the user based on first machine-readable code. During detection, user device 400 can be configured to automatically extract data from the first machine-readable code. As discussed above, data extraction may include links (e.g., URLs) to remote resources such as websites, which user device 400 automatically accesses to obtain the first digital content or data related to the first digital content. This link may be referred to herein as a "digital content link." The first digital content may include various types of graphics, text, video, animation, music, AR / VR content, etc. As will be understood from the description herein, the first digital content may include digital content related to a first state of reactive graphics 102 (e.g., digital content of interest to the user before an activation event has occurred).

[0098] In some implementations, the first digital content is presented via a user interface of user equipment 400. For example, AR content may be overlaid on a live video feed from a camera of user equipment 400. As another example, a user interface including text, graphics, etc., may be displayed on user equipment 400. In some implementations, the first digital content is transmitted or “broadcast” to an auxiliary device, such as a television, tablet, display screen, or any other computing device. For example, the first digital content may be displayed via a television, allowing multiple users to watch and experience it. In another example, the first digital content is transmitted to an AR / VR-capable device for display, such as a VR headset.

[0099] As discussed herein, an activation event can occur that transitions the reactive pattern 102 from a first state to a second state. Generally, the second state differs from the first state. As described above, the triggering event can be exposure of the reactive pattern 102 to an activation event. For example, an activation event could be exposure to urine (in which case, the reactive pattern 102 can transition to the second state in the presence of urine or other moisture), exposure to high temperatures (in which case, the reactive pattern 102 can transition to the second state if a temperature threshold is exceeded), or exposure to bacteria and / or fungi (in which case, the reactive pattern 102 can transition to the second state if bacteria and / or fungi are present in / around the absorbent article 100). In the second state, the reactive pattern 102 generally includes a second machine-readable code that differs from the first machine-readable code. As described above, for example, the second machine-readable code may completely replace the first machine-readable code, or the first machine-readable code may be modified to be the second machine-readable code. In any case, at step 506, a second machine-readable code disposed on the absorbent article is detected in a manner similar to the first machine-readable code (e.g., by scanning using user equipment 400).

[0100] At step 508, second digital content is presented to the user based on second machine-readable code. As in step 504, user device 400 may be configured to automatically extract data from the second machine-readable code, which may include links (e.g., URLs) to remote resources containing the second digital content (e.g., a second “digital content link”) or data related to the second digital content. Like the first digital content, the second digital content may also include various graphics, text, video, animation, music, AR / VR content, etc., and may be presented via a user interface of user device 400 or another device. However, the second digital content is generally different from the first digital content. For example, the content and / or information presented in the second digital content may differ from the content and / or information presented in the first digital content. As will be understood from the description herein, the second digital content may include digital content associated with a second state of the reactive graphics 102 (e.g., digital content of interest to the user when an activation event has occurred).

[0101] Use Case Examples

[0102] The absorbent article 100 and the associated process 500 for presenting changing digital content based on the state of the reactive graphic 102 arranged thereon are applicable to a variety of scenarios. For clarity, while example use cases are described herein, it should be understood that these examples are not intended to be limiting.

[0103] In an embodiment configured for toilet training (as further described herein), user device 400 may be used to scan reactive graphics 102 on absorbent article 100 (e.g., toilet training pants) to present different digital content to a user (e.g., a parent) based on whether the training pants are wet or dry. For example, if the training pants are dry, a celebratory experience may be presented (e.g., via user device 400) to encourage the child. In this example, user device 400 may track the state of reactive graphics 102 with each scan to determine whether the wearer (e.g., the child) has kept the training pants dry. At this point, reactive graphics 102 does not necessarily need to change (e.g., in response to an activation event) to present different digital content. Instead, different experiences may be presented based on the tracked data. For example, different digital content may be presented (e.g., different encouraging content for toilet training when absorbent article 100 remains dry and reactive graphics 102 is scanned multiple times consecutively in the first state). Furthermore, if the absorbent article 100 is wet—and therefore the reactive graphic 102 has transitioned to the second state—a different digital experience can be presented, which encourages the child to continue trying to keep the absorbent article dry for the next time (e.g., presenting different encouraging content for toilet training when the absorbent article 100 is wet and the reactive graphic 102 is scanned in the second state after being previously scanned in the first state). In this way, the presented digital content is associated with the state of the reactive graphic 102 (e.g., associated with the current state of the reactive graphic 102 and / or associated with the previous tracked state of the reactive graphic 102). In some embodiments, the digital content presented to the user can be randomized (e.g., by including a randomization parameter at the end of a first or second digital content link associated with the reactive graphic 102). In some embodiments, the user device and / or system can be configured to track progress against a target (e.g., tracking the consecutive number of times the reactive graphic 102 is scanned in the first state against a predefined target, and tracking the number of times any reactive graphic 102 is scanned in the second state over a one-month period against a predefined target).

[0104] In another example, the reactive pattern 102 can be used to track permanence. For example, the reactive pattern 102 can be formed by reactive ink that changes in response to temperature. In various embodiments, the reactive pattern 102 can transition to a second state if the temperature of the absorbent article 100 exceeds a temperature threshold. In such embodiments, the reactive ink can be selected based on a desired temperature threshold. For example, in one embodiment, the reactive pattern 102 can transition from a first state to a second state if the reactive ink (forming the reactive pattern 102) is exposed to a temperature exceeding 100 degrees Fahrenheit. In another embodiment, the reactive pattern 102 can transition from a first state to a second state if the reactive ink (forming the reactive pattern 102) is exposed to a temperature exceeding 105 degrees Fahrenheit. Thus, if the threshold is exceeded, the reactive pattern 102 can maintain a second state (e.g., displaying a second QR code), which can signal to parents or caregivers that the wearer of the absorbent article 100 has been exposed to high or dangerous temperatures. For example, if the wearer of the absorbent article 100 is an infant, this could indicate that the infant is overdressed or otherwise at risk of heat injury. In such embodiments, a second machine-readable code can be scanned (e.g., after the reactive graphic 102 has been exposed to temperatures exceeding a temperature threshold) to provide the user with instructions for caring for a child exposed to excessive heat, contact information for a healthcare provider, etc.

[0105] In other embodiments, the reactive pattern 102 may be formed of reactive ink that responds to the presence of bacteria or fungi, indicating the presence of bacteria or fungi in or around the wearer's bodily fluids or the absorbent article 100. In this example, a second machine-readable code may be scanned (e.g., visible after the reactive pattern 102 has been exposed to an activation event) to provide the user with instructions for caring for a child exposed to bacteria or fungi, contact information for a healthcare provider, etc., the reactive pattern 102 being configured to respond to these bacteria or fungi.

[0106] Configuration of certain implementation methods

[0107] The construction and arrangement of the systems and methods shown in the various embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, many modifications are possible (e.g., variations in the size, dimensions, structure, shape and proportions of various elements, parameter values, installation arrangements, use of materials, color, orientation, etc.). For example, the positions of elements may be reversed or otherwise changed, and the nature or number of discrete elements or positions may be altered or changed. Therefore, all such modifications are intended to be included within the scope of this disclosure. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. Other substitutions, modifications, alterations, and omissions may be made in the design, operating conditions, and arrangement of the embodiments without departing from the scope of this disclosure.

[0108] This disclosure contemplates methods, systems, and program products on any machine-readable medium for performing various operations. Embodiments of this disclosure can be implemented using existing computer processors, or by special-purpose computer processors incorporated for this or another purpose for a suitable system, or by hardwired systems. Embodiments within the scope of this disclosure include program products comprising machine-readable media for carrying or storing machine-executable instructions or data structures. Such machine-readable media can be any available medium accessible by a general-purpose or special-purpose computer or other machine having a processor. By way of example, such machine-readable media may include RAM, ROM, EPROM, EEPROM, CD-ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of machine-executable instructions or data structures and is accessible by a general-purpose or special-purpose computer or other machine having a processor.

[0109] When information is transmitted or provided to a machine via a network or another communication connection (hardwired, wireless, or a combination of hardwired and wireless), the machine properly regards that connection as a machine-readable medium. Therefore, any such connection is properly referred to as a machine-readable medium. Combinations of the above are also included within the scope of machine-readable media. Machine-executable instructions include, for example, instructions and data that cause a general-purpose computer, a special-purpose computer, or a special-purpose processing machine to perform a function or a set of functions.

[0110] Although the accompanying drawings show a specific order of method steps, the order of these steps may differ from the depicted order. Furthermore, two or more steps may be performed concurrently or partially simultaneously. This variation will depend on the chosen software and hardware system and the designer's choices. All such variations are within the scope of this disclosure. Similarly, software implementations may utilize standard programming techniques that employ rule-based logic and other logic to accomplish various connection steps, processing steps, comparison steps, and decision steps.

[0111] It should be understood that these methods and systems are not limited to specific synthetic methods, specific components, or specific compositions. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0112] As used in the specification and appended claims, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” include plural referents. A range herein may be expressed as from “about” one particular value and / or to “about” another particular value. When such a range is expressed, another embodiment includes from one particular value and / or to another particular value. Similarly, when a value is expressed as an approximation using the antecedent “about,” it should be understood that the particular value forms another embodiment. It should also be understood that each endpoint of a range is significant relative to the other endpoint and is independent of the other endpoint.

[0113] "Optional" or "optionally" means that the event or situation described below may or may not occur, and the description includes examples of the event or situation occurring and examples of it not occurring.

[0114] Throughout the description and claims of this specification, the word “comprising” and its variations, such as “comprising” and “including,” mean “including, but not limited to,” and are not intended to exclude, for example, other additives, components, integrals, or steps. “Exemplary” means “example” and is not intended to convey the meaning of a preferred or ideal implementation. “Like” is not used in a limiting sense but is for illustrative purposes.

[0115] Components that can be used to perform the disclosed methods and systems are disclosed herein. These and other components are disclosed herein, and it should be understood that while specific references to every various individual and collective combination and arrangement of these components may not be explicitly disclosed, each component is specifically contemplated and described herein for all methods and systems, including but not limited to the steps in the disclosed methods. Therefore, if multiple additional steps are available, it should be understood that each of these additional steps can be performed using any particular implementation or combination of implementations of the disclosed method.

Claims

1. An absorbent article comprising: an outer cover having an inner surface and an outer surface; an absorbent structure having a first surface positioned proximate the inner surface of the outer cover and a second surface opposite the first surface and facing a wearer; and a reactive graphic visible at a first location on the outer surface of the outer cover, the reactive graphic comprising a reactive ink that transitions from a first state to a second state when exposed to an activation event; wherein in the first state, the reactive graphic forms a first machine-readable code at the first location on the outer surface of the outer cover, the first machine-readable code comprising a first digital content link; wherein in the second state, the reactive graphic forms a second machine-readable code at the first location on the outer surface of the outer cover, the second machine-readable code comprising a second digital content link; wherein the second machine-readable code is different from the first machine-readable code and replaces the first machine-readable code upon the reactive ink transitioning from the first state to the second state, and wherein the second digital content link is different from the first digital content link.

2. The absorbent article of claim 1, wherein the first machine-readable code and the second machine-readable code are two-dimensional codes.

3. The absorbent article of claim 2, wherein the first machine-readable code and the second machine-readable code are quick response (QR) codes.

4. The absorbent article of claim 1, wherein the first digital content link and the second digital content link are uniform resource locators (URLs).

5. The absorbent article of claim 1, wherein: scanning the first machine-readable code with a user device causes the user device to automatically access first digital content via the first digital content link and display the first digital content to a user; and scanning the second machine-readable code with the user device causes the user device to automatically access second digital content via the second digital content link and display the second digital content to the user, wherein the second digital content is different from the first digital content.

6. The absorbent article of claim 1, wherein each of the first digital content link and the second digital content link is accessible by a computing device to present at least one of written or graphical content, a video, an augmented reality (AR) experience, or a virtual reality (VR) experience to a user.

7. The absorbent article of claim 6, wherein the at least one of written or graphical content, a video, an AR experience, or a VR experience is presented via a user interface of the computing device.

8. The absorbent article of claim 1, wherein the absorbent article is one of a diaper, a toilet training pant, an adult incontinence product, or a feminine hygiene product.

9. The absorbent article of claim 1, wherein the activation event is contact with a bodily fluid.

10. The absorbent article of claim 1, wherein the activation event is contact with urine.

11. The absorbent article of claim 1, wherein the activation event is one of a change in temperature, exposure to light, exposure to a gas, or exposure to a microbial load.

12. A method comprising: providing an absorbent article configured to be worn by a person, the absorbent article including a reactive graphic visible at a first location on an exterior of the absorbent article, wherein the reactive graphic includes a reactive ink that transitions from a first state to a second state when exposed to an activation event, wherein the reactive graphic forms a first machine-readable code at the first location on the exterior of the absorbent article in the first state and forms a second machine-readable code at the first location on the exterior of the absorbent article in the second state, wherein the second machine-readable code is different from and replaces the first machine-readable code; detecting, using a camera embedded within a computing device, the first machine-readable code; presenting, via the computing device, first digital content based on the first machine-readable code; detecting, using the camera embedded within a computing device, the second machine-readable code after the reactive ink has transitioned from the first state to the second state; and presenting, by the computing device, second digital content based on the second machine-readable code, wherein the second digital content is different from the first digital content.

13. The method of claim 12, wherein the first machine-readable code and the second machine-readable code are quick response (QR) codes.

14. The method of claim 12, wherein each of the first machine-readable code and the second machine-readable code is encoded with a unique web address that, when obtained by the computing device, causes the computing device to automatically access the first digital content or the second digital content via the respective unique web address of the first machine-readable code and the second machine-readable code.

15. The method of claim 12, wherein each of the first digital content and the second digital content includes at least one of written or graphical content, a video, an augmented reality (AR) experience, or a virtual reality (VR) experience.

16. The method of claim 12, wherein the first digital content and the second digital content are presented via a user interface of the computing device.

17. The method of claim 12, wherein the first machine-readable code and the second machine-readable code are detected by scanning the reactive graphic of the absorbent article using the camera of the computing device without storing any captured images or videos.

18. The method of claim 12, further comprising transmitting data for one or both of the first digital content and the second digital content to a remote computing device, the data causing the remote computing device to present the first digital content or the second digital content.

19. The method of claim 12, wherein the absorbent article is one of a diaper, a toilet training pant, an adult incontinence product, or a feminine hygiene product.

20. The method of claim 12, wherein the activation event is one of exposure to a bodily fluid, a change in temperature, exposure to light, exposure to a gas, or exposure to a microbial load.

Images