Novel Reusable Swim Diaper

Abstract

A reusable swim diaper (10) in the form of a panty, with elastic bands (12) around the waist and/or leg openings, the diaper includes the following: a) an outer layer (14), said outer layer consisting of an elastic knitted fabric or wovens; b) an inner layer (16), said inner layer consisting of an elastic knitted fabric or wovens from natural and/or synthetic fiber materials; c) and the inner layer (16) is a water vapor-permeable and water-absorbing inner layer.

Claims

1. A reusable swim diaper in the form of a brief with an elastic termination in the waist and/or leg region, comprising: a) an external layer, where the external layer comprises an elastic knitted fabric or a woven fabric; b) an internal layer, where the internal layer comprises a knitted fabric or a woven fabric made of natural and/or synthetic fiber materials; c) and where the internal layer is a water-vapor-permeable and water-absorbent internal layer.

2. The reusable swim diaper as claimed in claim 1, wherein the water-vapor-permeable and water-absorbent internal layer is a formed-loop knit or a textile construct.

3. The reusable swim diaper as claimed in claim 2, wherein the formed-loop knit or the textile construct consists of identical or different yarns and/or threads.

4. The reusable swim diaper as claimed in claim 2, wherein the formed-loop knit or the textile construct is configured as single drawn-loop knit, multiple drawn-loop knit and/or sheet material.

5. The reusable swim diaper as claimed in claim 2, wherein the material sides of the formed-loop knit or of the textile construct comprise different yarns and/or threads.

6. The reusable swim diaper as claimed in claim 2, wherein the formed-loop knit or the textile construct comprises spacing elements, spacers and/or fiber chambers.

7. The reusable swim diaper as claimed in claim 6, wherein the spacing elements and/or spacers are drawn-loop spacer knits, formed-loop spacer knits and/or spacer yarns.

8. The reusable swim diaper as claimed in claim 2, wherein formed-loop knits or textile constructs are bonded to one another without stitched seam.

9. The reusable swim diaper as claimed in claim 8, wherein the formed-loop knits or textile constructs are bonded durably to one another by welding.

10. The reusable swim diaper as claimed in claim 1, wherein the internal layer made of a knitted fabric or of a woven fabric made of synthetic fiber materials is an internal polyester layer.

11. The reusable swim diaper as claimed in claim 1, wherein the external layer has a waterproof coating and/or a microporous membrane.

12. The reusable swim diaper as claimed in claim 11, wherein the coating is a synthetic polymer coating and/or synthetic resin coating.

13. The reusable swim diaper as claimed in claim 11, wherein the microporous membrane is a synthetic and/or semisynthetic polymer membrane.

14. The reusable swim diaper as claimed in claim 11, wherein the coating and/or microporous membrane is applied to the external layer without stitched seam.

15. The reusable swim diaper as claimed in claim 14, wherein the coating and/or microporous membrane is durably applied to the external layer by welding, adhesive bonding and/or fusion.

16. The reusable swim diaper as claimed in claim 8, wherein the formed-loop knits or textile constructs are bonded durably to one another by ultrasonic welding, adhesive bonding and/or fusion.

17. The reusable swim diaper as claimed in claim 1, wherein the internal layer made of a knitted fabric or of a woven fabric made of synthetic fiber materials is a polycarbonate, polyethylene terephthalate and/or polyester resin.

18. The reusable swim diaper as claimed in claim 11, wherein the coating is a polyurethane coating.

19. The reusable swim diaper as claimed in claim 11, wherein the microporous membrane is a polytetrafluoroethylene membrane.

Description

[0085] The inventive examples are depicted diagrammatically in the figures. Identical reference signs in the individual figures here denote identical elements or elements that are functionally identical or that correspond to one another in respect of their functions. Details are as follows:

[0086] FIG. 1 depicts one embodiment of the reusable diaper;

[0087] FIG. 2 compares materials with normal wicking and unidirectional-wicking properties;

[0088] FIG. 3 depicts a welded toweling layer;

[0089] FIG. 4 depicts various embodiments of the internal layer of the reusable swim diaper;

[0090] FIG. 5 is a diagram of the layer structure of one embodiment of the reusable swim diaper.

[0091] FIG. 1 shows an embodiment of the reusable swim diaper (10) in the form of a brief with an elastic termination, in the present case made of elastic, in the waist and/or leg region (12), and also an external layer (14) and an internal layer (16). FIG. 1 moreover shows that the elastic termination has been secured to the reusable swim diaper (10) by means of a stitched seam (18).

[0092] FIG. 2 compares materials with normal wicking properties and unidirectional-wicking properties. It can clearly be seen that in the case of the unidirectional-wicking materials the moisture arising on the upper side of the fabric is first rapidly drawn to the underside of the fabric, from where the wicking function (=maximized moisture distribution) then operates. It therefore follows that only small quantities of residual moisture remain on the upper side of the material (this being the material side facing toward the body in the case of the swim diaper of the invention), while most of the moisture is drawn away to the side facing away from the body, and evaporates there. In contrast thereto, in the case of conventional wicking the moisture on the upper side and underside of the fabric is distributed uniformly over a large area; this leads to maximized contact of the skin with the accumulated moisture over a substantial area.

[0093] FIG. 3 shows an additional moisture-storage system in the form of a welded toweling material. This can be used as internal layer (components) in the invention, whereas set out at an earlier stage abovethe bonding of the internal layer to the external layer can be achieved in the present case by means of welding (pressure welding) without stitched seam.

[0094] FIG. 4 shows the structure of various internal layers of the invention: 4A: Internal layer configured as single drawn-loop knit with various yarn components on both material sides; 4B: Internal layer configured as multiple drawn-loop knit with spacer yarns as spacer; 4C: Internal layer configured as multiple drawn-loop knit with fiber chambers; 4D: Internal layer configured as composite sheet material in which two functional components have been durably bonded to one another by means of large-area ultrasonic welding.

[0095] FIG. 5 is a diagram of the layer structure of the reusable swim diaper, and shows the external layer (14), the internal layer (16), and also a coating (20) applied to the external layer (14) and intended for reliable provision of waterproof properties. Said figure also shows that the internal layer (16) and external layer (14) have been secured to one another without stitched seam. This can by way of example be achieved by means of welding (pressure welding), adhesive bonding or fusion in specific textile machines. The coating (20) has likewise been applied to the external layer (14) without stitched seam. The bond is achieved here in coherent manner, for example via adhesive bonding or fusion in specific textile machines (lamination) by means of welding (pressure welding).

[0096] There are numerous realizable modifications and further developments of the embodiments described.

KEY

[0097] 10 Reusable swim diaper [0098] 12 Elastic termination [0099] 14 External layer [0100] 16 Internal layer [0101] 18 Stitched seam [0102] 20 Coating

REFERENCES

[0103] References [0104] U.S. Pat. No. 7,678,094B1 [0105] EP 15176716.7 [0106] US 2002/0010452 A1 [0107] EP 2 918 253 A1

Non-Patent References

[0108] Anonymous: Because swim diapers are in the water, they do not retain urine!Test report on Totsbots swim diapers (published: 13 May 2016)