Child and adult leak-proof garments made with an inner absorbent fabric

The novel dual-layer garment includes an outer layer made from a fluid-repellant or leak-proof fabric and an inner absorbent layer assembled therewith. The inner layer is made to slow down fluid absorption as compared to regular baby diapers in order to keep the child feeling wet for an extended, yet limited period of time. The adult version of the garment may feature several tight bands along the full length of the garment so as to compartmentalize several sections thereof and limit fluid runoff to avoid an outside leakage of fluids.

BACKGROUND

Without limiting the scope of the invention, its background is described in connection with various garments made using absorbent fabrics. More particularly, the invention describes child and adult outer garments made in part or entirely using a two-layer fabric featuring an inside absorbent fabric layer and an outside non-absorbent fabric layer.

The invention more specifically relates to a child potty-training garment system that absorbs fluid discharge and also conveys a feeling of wetness to the wearer to motivate them to use a toilet. Common children's clothing systems include pants, dresses, blouses, shirts, shorts, skirts, and the like to cover the body of the wear at least in part. For example, a skirt is worn around the waist and covers the legs. One of the problems associated with common children's clothing systems is their limited efficiency. For example, young children are not able to control their bladders and other bodily functions. Bedwetting is a common problem among young children. They must be taught this control. When fluid or other mater is discharged, their clothing (and frequently the bedding sheets) must be changed and cleaned.

Common potty-training solutions to the uncontrolled release of bodily fluids, such as bedwetting, include the use of special absorbent devices such as diapers that quickly capture any fluid and lock it away from the wearer. This, however, teaches the wearer that their lack of control is acceptable as the problem is quickly solved for them. While developments have been made in the area of common clothing systems and potty-training methods, the need exists for further improvements.

The need also exists for fluid-absorbent clothing systems for adults, especially older adults, as well as certain additional groups of users: disabled people (both young and old), patients after certain medical procedures, people requiring nursing assistance, menstruating women, especially with heavy bleeding conditions, and others. Urine and fecal incontinence are known problems with the elderly. Adult diapers are frequently used to address the problem but their fluid holding capacity may not be adequate all the time leaving the user feeling soiled with involuntarily discharged fluids. An overflow of fluids exceeding the holding capacity of an adult diaper causes uncontrolled running of the fluids along the legs of the user and even escaping outside the garment, which may be embarrassing for children as well as the adult user. A need, therefore, exists to prevent this uncontrolled discharge and spare the user from such embarrassments.

Given heightened environmental concerns, the need also exists for reusable fluid-absorbent garments to reduce a large volume of waste associated with discarded disposable diapers after their use.

SUMMARY

Accordingly, it is an object of the present invention to overcome these and other drawbacks of the prior art by providing a novel dual-layer outer garment configured to absorb unintended leaks for the user.

It is another object of the present invention to provide a novel garment that avoids external leakage of the fluid outside the garment.

It is a further object of the present invention to provide a child potty-training garment that encourages small children to learn proper potty techniques.

The novel dual-layer garment of the invention includes an outer layer made from a fluid-repellant or leak-proof fabric and an inner absorbent layer assembled therewith. The inner layer is made to slow down fluid absorption as compared to regular baby diapers in order to keep the child feeling wet for an extended, yet limited period of time.

The adult version of the garment may feature several tight bands along the full length of the garment so as to compartmentalize several sections thereof and limit fluid runoff to avoid an outside leakage of fluids.

The following description sets forth various examples along with specific details to provide a thorough understanding of claimed subject matter. It will be understood by those skilled in the art, however, that claimed subject matter may be practiced without one or more of the specific details disclosed herein. Further, in some circumstances, well-known methods, procedures, systems, components and/or circuits have not been described in detail in order to avoid unnecessarily obscuring claimed subject matter. In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, similar symbols typically identify similar components, unless context dictates otherwise. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, and designed in a wide variety of different configurations, all of which are explicitly contemplated and make part of this disclosure.

FIGS. 1 through 4describe the child garment according to various embodiments of the present invention.FIG. 1depicts a front view of the first embodiment for a potty-training outer garment system in its preferred embodiment. The term “outer garment” is used herein to separate the invention from various diapers and other underwear clothing systems as it can be worn on top or in addition thereto if desired. It will be understood that system101provides improvements over common clothing systems and potty-training methods.

The embodiment the system101includes a waistband103with an outer layer105attached thereto and configured to cover the lower abdomen, groin, and a portion of the legs of a person. An inner layer107may be attached to the outer layer105to form the combined fabric of the garment, which may extend over a part or over the whole garment101. The waistband103and outer layer105form a skirt101, which is shown only as one example of a suitable garment of the invention.

It is contemplated that any type of garment that covers the groin area of the wearer could be used with this invention. An alternative embodiment is provided inFIG. 2. Embodiment201includes a waistband203that is attached to an outer layer205. Outer layer205may be configured to form two leg holes so that it covers the lower abdomen, groin, and a portion of the legs of a person. The outer layer205may have an inner layer207attached thereto or integrally formed therewith.

Referring now toFIG. 3, system101is depicted in further detail. It is contemplated that the outer layer105may be attached to the inner layer107at a first location301and at least a second location303. It is contemplated that the outer layer105may be configured to act and function as a normal or common garment. In further embodiments, the outer layer105may be water-repellent or totally impermeable to fluids. Making the outer layer leak-free with the inner layer being fluid-absorbent creates a complete solution for managing unintended leaks for the user. In further embodiments, the outer layer may be configured to have color patterns and “feel” to touch like regular fabric so as to conceal the fluid-retention capability of the garment and make it appear as a regular piece of clothing.

The inner layer107may be configured to partially or slowly absorb fluid. The partial absorption or slow absorption indicates to the wearer that fluid is present in the garment and results in an uncomfortable sensation.

The inner layer107may be made using at least one or a combination of bamboo, cotton, wool, fleece, microfiber, hemp, terry, linen, flannel, or other materials.

Various methods of detachable or permanent attachment of the outer layer105to the inner layer107may be used for the purposes of this invention. For example, a plurality of snaps, buttons, or other spot fasteners may be used throughout the garment to removably or permanently secure both layers of the fabric together. Zippers, line stitching, or similar fastening methods may also be used. In further embodiments, garment seams may be constructed to be leak-proof using impermeable tapes, attached to the inner and outer layers using adhesives, heat-sealing or heat-fusion techniques. Other attachment methods suitable for this invention may include gluing, welding, heat bonding, or fusing two layers together in at least some spots, around the periphery, or over the entire surface of the garment, as the invention is not limited in this regard.

In further embodiments, the inner layer107may not be present along the entire inner surface of the outer layer105. In this case, partial patches of the absorbent inner layer may be provided inside the garment—without covering the entire surface thereof. Each patch may be individually attached to the continuous outer layer105using any of the above-mentioned fastening methods.

One method to teach potty training according to the invention is depicted inFIG. 4. Method401may include placing a child in a garment with a partially absorbent inner layer403, allowing the child to wear the garment405, allowing the child to urinate in the garment407, the partially absorbent layer capturing the urine409, the captured urine causing a sensation of wetness to the child411, removing the garment413, and the child desiring to avoid the sensation of wetness by using a toilet415.

To achieve the desired effect, the garment may be configured to hold less fluid than a conventional diaper—with the purpose of providing a more acute sense of wetness for the child which would encourage the child to practice proper potty techniques. This may be accomplished by selecting a suitably lower thickness of the inner layer107.

In other embodiments, the inner layer may be configured to absorb the fluid more slowly than a conventional diaper. In this case, the feeling of wetness would persist only temporarily and for a limited, predetermined period of time. Once the fluid is absorbed fully, the child will not feel wet all the time, which may make the child uncomfortable. The same feature may be helpful to reduce the rate of diaper rash associated with using the garment of the invention.

In further yet embodiments, a thinner patch or a slower absorbency patch of a first inner layer may cover only a portion of the inner surface of the garment in one or more patches, while other portions of the garment may be made fully and quickly absorbent using a second inner layer with a second and higher absorbency rate. In this case, an unpleasant feeling of wetness may be limited to the size and location of that lower absorbency patch, not the entire surface of the garment. In one example, one or two strips of such lower absorbency inner layer material may be positioned on one or both sides of the garment and a fully absorbent inner layer may be positioned in the front and in the back thereof, so as to prevent diaper rash in these more likely locations. In some embodiments, there is no overlap between the first and the second inner layer, while in other embodiments these inner layers may overlap, at least in some places along the garment.

Once the garment is full, it can be machine washed and dried to restore it to the original dry condition and reuse at a later time.

Modern disposable baby diapers include a layer of fluff and a layer of superabsorbent polymer as described in detail by Bachra et al. incorporated herein by reference in its entirety (Yahya Bachra, Ayoub Grouli, Fouad Damiri, Ahmed Bennamara, and Mohammed Berrada. A new approach for assessing the absorption of disposable baby diapers and superabsorbent polymers: A comparative study. Results in Materials, 8:100156, 2020).

FIG. 6 of Bachra is of particular interest. It describes the total tap water absorption capacity of 8 widely marketed diapers as being between 20 and 30 times the dry weight of the diaper. In comparison, a total tap water absorbency capacity for the garment of the present invention may be selected to be lower, such as 5 to 15 times the weight of the garment so as to maintain some sense of the child as being wet. In various embodiments, the total tap water absorbency for the garment of the invention may be selected to be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 times the dry weight of the garment. This may be adjusted by varying the thickness of the absorbent inner layer or other characteristics of the inner layer that impact the total absorbency of the fabric.

Another interesting finding in Bachra is seen inFIG. 12illustrating the absorption kinetics of the diapers. For most diapers, the fluid is mostly absorbed to the diaper's maximum capacity in the first 2-3 minutes of fluid contact. The present invention may use slower absorption fabrics, such as with the total absorption time to saturation being 4-15 min. in various embodiments, the total absorption time to saturation may be selected to be 4 min, 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, 11 min, 12 min, 13 min, 14 min, 15 min or even longer so as to facilitate a prolonged sensation of being wet for the child wearing the garment, thereby urging the child to learn proper potty techniques. This parameter may be adjusted by selecting a suitable extent of fluffiness of the inner layer or by other fabric characteristics that are familiar to those skilled in the art.

Advantageously, one or more tight bands, similar to what is described below, may be included in the design of a child garment, designed to collect the fabric tight around the user's skin, such as with elastic or a draw-string design. In one example, the garment may feature an upper tight band103and one or more lower tight bands such as located on the bottom of the garment (not shown). This arrangement may be useful to isolate all leaked fluid and prevent it from leaking outside while the inner layer is slowly absorbing it inside thereof. The feeling of wetness would persist for a longer period of time as compared to conventional diapers, such as at least 5 min—but will still subside soon thereafter. This will encourage the child to learn proper potty techniques, and at the same time avoid the child feeling uncomfortable for a very long period of time.

The present invention may also be useful for adult customers as well as children. In particular,FIG. 5shows full-length pants500made from the dual-layer fabric of the invention. Importantly, the term “dual-layer” describes an inner layer and an outer layer, with the inner layer that can be made using one or more individual layers of fabrics as described above. Each individual layer of fabric used for the inner layer of the garment may have a uniform or variable thickness along the length of the garment, for example, with greater thickness around the groin area facilitating greater fluid retention.

The top waistband portion503may be an elastic or a draw-string component that allows the user to tighten the garment around their waist. Advantageously, the garment may have one or more additional elastic or draw-string bands507,508,509, where the fabric of the garment may be closely collected around the limb of the user, so as to prevent fluid runoff down the limb, a common problem for incontinent adults.

As described inFIG. 7by Bachra, fluid runoff can occur with any diaper, both child and adult diapers, which may occur prior to as well as after diaper saturation. Once a conventional diaper is full, the fluid has no more room to be absorbed. Using an extended length of the garment as seen inFIG. 5allows additional absorbent material to be located along the upper and lower portions of the limb so as to provide additional fluid absorption capability.

In addition, one or several areas where the fabric may be tightly collected around the limb of the user. This may assist to avoid leaking of the fluid outside the garment, thereby avoiding embarrassment for the user, both children and adults.FIG. 5shows examples of specific contemplated locations of the tight bands collecting the fabric closely around the limb, such as middle tight bands507at the bottom of the trunks, alternative middle tight bands508around the knees, and lower tight bands509at the area of the user's ankles. Other or additional tight fabric bands may be also provided in other locations as the invention is not limited in this regard.

AlthoughFIG. 5shows an example of the pants, the invention is not limited to that type of garment. Skirts, overalls, pajama pieces or full sets, or other lower and upper body garments may also be made using the dual-layer fabric of the invention.

Furthermore, another advantageous feature of the garment is the ability to remove it without the need to take down the garment like regular pants. To facilitate gentle sideways removal, side snaps, buttons, zippers, Velcro, or other similar fasteners may be provided along the entire length of one or both sides of the garment (not shown in the drawings). Undoing these fasteners along the sides of the garment may help to facilitate careful sideways removal of the soiled garment without causing additional fluid leaks during the process of garment exchange.

It is contemplated that any embodiment discussed in this specification can be implemented with respect to any method of the invention, and vice versa. It will be also understood that particular embodiments described herein are shown by way of illustration and not as limitations of the invention. The principal features of this invention can be employed in various embodiments without departing from the scope of the invention. Those skilled in the art will recognize or be able to ascertain using no more than routine experimentation, numerous equivalents to the specific procedures described herein. Such equivalents are considered to be within the scope of this invention and are covered by the claims.

All publications and patent applications mentioned in the specification are indicative of the level of skill of those skilled in the art to which this invention pertains. All publications and patent applications are herein incorporated by reference to the same extent as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference. Incorporation by reference is limited such that no subject matter is incorporated that is contrary to the explicit disclosure herein, no claims included in the documents are incorporated by reference herein, and any definitions provided in the documents are not incorporated by reference herein unless expressly included herein.