US10675186B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10675186-B2 |
| Application number | US-201816128689-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 12, 2018 |
| Priority date | May 31, 2017 |
| Publication date | Jun 9, 2020 |
| Grant date | Jun 9, 2020 |
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Official abstract text for this publication.
A fabric that includes a first yarn and a second yarn which generate electric charges having different polarities with the application of external energy thereto. The fabric includes a low-density portion and a high-density portion having a lower porosity than the low-density portion.
Opening claim text (preview).
The invention claimed is: 1. A fabric comprising: a first yarn constructed to generate a first electric charge having a first polarity when acted upon by external energy; and a second yarn constructed to generate a second electric charge having a second polarity different from the first polarity when acted upon by the external energy, the first yarn and the second yarn arranged in at least one of a low-density portion of the fabric and/or a high-density portion of the fabric, the high-density portion having a lower porosity than the low-density portion. 2. The fabric according to claim 1 , wherein the first yarn and the second yarn are each arranged both of the low-density portion and the high-density portion. 3. The fabric according to claim 2 , wherein a first distance between the first yarn and the second yarn in the low-density portion is larger than a second distance between the first yarn and the second yarn in the high-density portion. 4. The fabric according to claim 3 , wherein the fabric includes a first principal surface and a second principal surface opposite the first principal surface, and wherein the low-density portion is greater in thickness as measured from the first principal surface to the second principal surface than the high-density portion. 5. The fabric according to claim 2 , wherein the fabric includes a first principal surface and a second principal surface opposite the first principal surface, and wherein the low-density portion is greater in thickness as measured from the first principal surface to the second principal surface than the high-density portion. 6. The fabric according to claim 1 , wherein the fabric includes a first principal surface and a second principal surface opposite the first principal surface, and wherein the low-density portion is greater in thickness as measured from the first principal surface to the second principal surface than the high-density portion. 7. The fabric according to claim 1 , wherein at least one of the first yarn or the second yarn comprises a core yarn and a piezoelectric film wound around the core yarn. 8. The fabric according to claim 7 , wherein both the core yarn and the piezoelectric film are made from polylactic acid. 9. The fabric according to claim 7 , wherein the core yarn is a conductive yarn having electrical conductivity. 10. The fabric according to claim 1 , wherein both the first yarn and the second yarn each comprises a core yarn and a piezoelectric film wound around the core yarn. 11. The fabric according to claim 10 , wherein both the core yarn and the piezoelectric film are made from polylactic acid. 12. The fabric according to claim 10 , wherein the core yarn is a conductive yarn having electrical conductivity. 13. The fabric according to claim 1 , further comprising a third yarn arranged with the first and second yarns in the fabric. 14. The fabric according to claim 13 , wherein the first yarn and the second yarn are arranged as warps and the third yarn is arranged as a weft in the fabric. 15. The fabric according to claim 14 , wherein the first yarn and second yarn are alternately arranged side by side in the fabric. 16. The fabric according to claim 1 , wherein the first yarn and second yarn are alternately arranged side by side in the fabric. 17. The fabric according to claim 1 , wherein the first yarn and second yarn are arranged together in a plating stitch in the fabric. 18. A liquid absorbing article comprising: the fabric according to claim 4 ; and a liquid impermeable sheet attached to one of the first principal surface or the second principal surface. 19. A liquid absorbing article comprising: the fabric according to claim 5 ; and a liquid impermeable sheet attached to one of the first principal surface or the second principal surface. 20. A liquid absorbing article comprising: the fabric according to claim 6 ; and a liquid impermeable sheet attached to one of the first principal surface or the second principal surface.
synthetic threads · CPC title
Absorbent pads; Tampons; Laundry; Towels · CPC title
Wound dressings · CPC title
Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used · CPC title
Cored or coated yarns or threads ({D02G3/34, D02G3/40 take precedence}; elastic yarns or threads D02G3/32) · CPC title
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