Not Applicable
Not Applicable
The present invention is in the technical field of absorbent articles and sanitary napkins. During toilet training, some children become partially toilet trained before they become fully toilet trained. Some become trained with urination first and there is time before they would become stool trained. In some other cases, the child is trained for bowel movements first, and then urination training takes more time. The present invention deals with the first case in which the child has been trained for urination but lags in stool training. In some of these cases, the child is withholding stool which results in later soiling his underwear. At some point, 20% of children refuse to stool train[Issenman, R M, Filmer, R B, Gorski, P A. A Review of Bowel and Bladder Control Development in Children: How Gastrointestinal and Urologic Conditions Relate to Problems in Toilet Training. Pediatrics. June 1999; 103(3)]. 1 to 3% of children are affected by encopresis or chronic fecal soiling at some point.
Some researchers estimate that up to 30% of children between age 2 and 10 have chronic constipation [Van den Berg M M, Benninga M A, Di Lorenzo C. Epidemiology of childhood constipation: a systematic review. American Journal of Gastroenterology. October 2006; 101(10):2401-9].
The purpose of the invention is to prevent soiling of underwear when the child is having difficulties in stool training or from being affected by encopresis or other issues causing undergarment/underwear soiling.
The present invention is a sanitary napkin meant to prevent soiling of the user's undergarment. The present disclosure describes an undergarment pantiliner which is worn with a child's underwear, to aid in toilet training while protecting undergarments from soiling. The invention is directed to in particular the situation in which the child has mastered urination but continues to have challenges with controlling bowel movements. The pantiliner is made up of sheets of non-woven disposable fabric and other materials which protect the wearer's underwear from stains and/or exudates. It is meant to absorb a little wetness but let most fluid flow through while retaining excrement and exudate. Use of the item aids the child's self-confidence to believe he can transition to be fully toilet-trained by supporting his sense of independence.
All cited references are incorporated herein by reference in their entireties. Citation of any reference is not an admission regarding any determination as to its availability as prior art to the claimed invention. The definitions of terms from patent U.S. Pat. No. 8,211,074 are hereby incorporated by reference. However, for the present invention, the term “pantiliner” is meant to apply for both female and male users. Unless otherwise stated, all terms referenced will be understood to apply to both genders.
The present invention describes an undergarment pantiliner that is worn with a child's underwear, in order to aid in toilet training and protect undergarments and garments against soiling. The pantiliner allows the child to wear regular child underwear with light protection in the event of an accidental leakage of liquid or solid fecal matter that could soil underwear. The liner allows the caregiver to redirect the child's toilet training. The liner aids in easier clean-up of the leakage by making cleanup faster and neater. In particular, the invention is directed towards the situation in which the child has mastered urination in the toilet but still has challenges with controlling bowel movements. The use of this invention presents several benefits to the user. It saves caregivers the time and hardship of dealing with toilet training messes in the child's underwear. It also saves the underwear from being stained and prematurely disposed of because of staining. Another benefit for the child is expression of individuality by choosing his or her own unique underwear each day and instead of the same design of pull-up diaper each day. It aids in a child's self-confidence and ability to believe he/she can be toilet-trained because the child is able to wear his or her own underwear. The use of the liner continues to support the child's sense of autonomy, self-determination, and independence. The invention would use less material than traditional diapers or pull-ups. This in turn costs less in material and means less environmental waste which is important for conscientious consumers.
The item entails a layered non-woven disposable fabric that is used as a pantiliner insert to protect the wearer's underwear from stains and/or exudates. It comprises a flat piece of layered non-woven material cut into a shape that mirrors most child underwear sizes. The piece would be cut so as to cover the area from substantially in front the user's perineum area towards the user's back expanding to cover the cloth of the underwear up until the small of the back and lateral sides (hip area).
The insert liner 1 is subjected mainly to such purposes as an underwear liner, and as shown in
The contact surface sheet 4 may comprise layers of materials such as nonwoven fabric of olefin such as polyester, or polyamide series or may also be regenerated fibers like rayon and cupra, or natural fibers, such as cotton. The contact sheet 4 comprises two to three layers embossed in a regular pattern (shown in drawing
The described invention would incorporate optionally an additional transfer layer 5 (such as described in reference U.S. Pat. No. 6,206,865) disposed between skin-contact surface sheet 4 and absorbent member 2.
An absorbent sheet 2 is interleaved between the transfer sheet 5 and the back-side sheet 3. The absorbent sheet comprises any one of following materials or combinations thereof spread evenly to approximately 0.5 to 2 mm thick. The absorbent layer can also be unevenly spread to comprise thicker sheet approximately where urine-exudate would flow and less thick in other areas. An example gradient 8 is shown in
The back-side or garment-facing sheet 3 is substantially the same as skin contact sheet 4 with some differences. In one example, the sheet would also have perforations (as shown in
A peel-away sheet is made up of waxed or hydrophobic paper or other material typically used in the art for disposable sanitary napkins. The sheet is pulled away to expose an adhesive layer so wearer may affix the article to underwear.
Disposed between the backside sheet 3 and the pull-away layer is a light adhesive as described in prior art such as in U.S. Pat. Nos. 8,029,483, 8,211,074 and related art. In the present invention, the adhesive could be applied in zones to attach the article firmly to the garment. Preferably, adhesive would be applied “Edge to edge” on the pantiliner. Alternatively, adhesives could be in a pattern in order to move with user and garment better or use of two or more different adhesives for differential stretching on surface of garment. Still another pattern of adhesives would entail adhesive strips only on particular spots or on a strip around the perimeter of the article. The article may also have index or indicator markings in order to help the user or caregiver properly attached the article to the undergarment.
The article assembly would be either folded into a square or rectangle to be wrapped in individual wrappers or rolled like a scroll into a cylindrical shape to be packaged in individual wrappers. Alternatively, they may be left unwrapped and placed in a container. As with many pantiliners, assemblies may also be stacked flat (unfolded or rolled) unwrapped and placed in an appropriately sized box.
The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “10 mm” is intended to mean “about 10 mm”.
All documents cited in the Detailed Description of the Invention are, in relevant part, incorporated by reference; the citation of any document is not to be construed as an admission that it is prior art with respect to the present invention.
While the foregoing written description of the invention enables one of ordinary skill to make and use what is considered presently to be the best mode thereof, those of ordinary skill will understand and appreciate the existence of variations, combinations, and equivalents of the specific embodiment, method, and examples herein. The invention should therefore not be limited by the above described embodiment, method, and examples, but by all embodiments and methods within the scope and spirit of the invention as claimed.
This application claims the benefit of U.S. Provisional Application No. 62/553,803, filed on Sep. 2, 2018