Charge-generating thread for bacterium-countermeasure, cloth for bacterium-countermeasure, cloth, clothing article, medical member, charge-generating thread that acts on living body, and charge-generating thread for substance-adsorption

Patent metadata

Field	Value
Publication number	US-11041260-B2
Application number	US-201816183884-A
Country	US
Kind code	B2
Filing date	Nov 8, 2018
Priority date	Jun 6, 2016
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

A charge-generating thread for bacterium-countermeasure that includes a charge-generating fiber. The charge-generating fiber generates a charge by energy imparted from the outside of the fiber so as to restrain the proliferation of bacteria by the generated charge.

First claim

The invention claimed is:

1. A charge-generating thread for bacterium-countermeasure, the charge-generating thread comprising a plurality of twisted charge-generating piezoelectric fibers constructed to generate a charge by energy imparted from outside of the fiber, and the charge-generating thread not having a core thread extending linearly along the axis direction of the charge-generating thread.

2. The charge-generating thread for bacterium-countermeasure according to claim 1 , wherein the plurality of twisted charge-generating fibers comprise a piezoelectric substance that is twisted around the axis direction of the charge-generating thread.

3. The charge-generating thread for bacterium-countermeasure according to claim 2 , wherein the piezoelectric substance comprises polylactic acid.

4. A cloth for bacterium-countermeasure comprising a plurality of the charge-generating threads according to claim 1 , the plurality of threads being in a woven configuration.

5. A cloth comprising:
a first thread, the first thread comprising a plurality of twisted charge-generating piezoelectric fibers constructed to generate a first charge by energy imparted from outside of the first thread, and the first thread not having a core thread extending linearly along the axis direction of the first thread; and
a second thread that is woven with the first thread.

6. The cloth according to claim 5 , wherein the first thread and the second thread are configured to generate an electric field therebetween due to a difference in electric potential between the first thread and the second thread.

7. The cloth according to claim 5 , wherein the first thread and the second thread are configured to generate a current due to a difference in electric potential between the first thread and the second thread.

8. The cloth according to claim 5 , wherein the second thread generates a second charge by energy imparted from outside of the second thread.

9. The cloth according to claim 8 , wherein the second thread comprises a piezoelectric substance.

10. The cloth according to claim 8 , wherein the first charge is different in polarity from the second charge.

11. The cloth according to claim 5 , wherein the plurality of twisted charge-generating fibers comprise a piezoelectric substance.

12. The cloth according to claim 11 , wherein the piezoelectric substance is a piezoelectric polymer.

13. The cloth according to claim 12 , wherein the piezoelectric polymer comprises polylactic acid.

14. The cloth according to claim 5 , wherein a plurality of the first thread are arranged in parallel with a plurality of the second thread in the cloth.

15. The cloth according to claim 5 , wherein a plurality of the first thread are arranged to cross a plurality of the second thread.

16. The cloth according to claim 5 , further comprising a third thread, and wherein the first thread, the second thread, and the third thread are braided together.

17. A clothing article comprising the cloth according to claim 5 .

18. A medical member comprising the cloth article according to claim 5 .

19. A charge-generating thread that acts on a living body, the charge-generating thread comprising a plurality of twisted charge-generating piezoelectric fibers that generate a charge by energy imparted from outside of the fiber, and the charge-generating thread not having a core thread extending linearly along the axis direction of the charge-generating thread.

20. A charge-generating thread for substance-adsorption, the charge-generating thread comprising a plurality of twisted charge-generating piezoelectric fibers that generate a charge by energy imparted from outside of the fiber, and the charge-generating thread not having a core thread extending linearly along the axis direction of the charge-generating thread.

21. A charge-generating thread for bacterium-countermeasure, the charge-generating thread comprising a plurality of charge-generating piezoelectric fibers each constructed to generate a charge by energy imparted from outside of the fiber, the plurality of charge-generating fibers each having a plurality of sections thereof arranged in a direction that is not parallel to an axis direction of the charge-generating thread, and the charge-generating thread not having a core thread extending linearly along the axis direction of the charge-generating thread.

22. An electric potential generating thread for bacterium-countermeasure, the electric potential generating thread comprising a plurality of twisted electric potential generating piezoelectric fibers constructed to generate an electric potential by a force imparted from outside of the fiber, and the electric potential generating thread not having a core thread extending linearly along the axis direction of the electric potential generating thread.

23. The electric potential generating thread for bacterium-countermeasure according to claim 22 , wherein the plurality of twisted electric potential generating fibers comprise a piezoelectric substance that is twisted around the axis direction of the electric potential generating thread.

24. The electric potential generating thread for bacterium-countermeasure according to claim 23 , wherein the piezoelectric substance comprises polylactic acid.

25. A cloth for bacterium-countermeasure comprising a plurality of the electric potential generating threads according to claim 22 , the plurality of electric potential generating threads being in a woven configuration.

26. A cloth comprising:
a first thread, the first thread comprising a plurality of twisted electric potential generating piezoelectric fibers constructed to generate a first electric potential by a force imparted from outside of the first thread, and the first thread not having a core thread extending linearly along the axis direction of the first thread; and
a second thread that is woven with the first thread.

27. The cloth according to claim 26 , wherein the first thread and the second thread are configured to generate an electric field therebetween due to a difference in the generated electric potential between the first thread and the second thread.

28. The cloth according to claim 26 , wherein the first thread and the second thread are configured to generate a current due to a difference in the generated electric potential between the first thread and the second thread.

29. The cloth according to claim 26 , wherein the second thread generates a second electrical potential by a force imparted from outside of the second thread.

30. The cloth according to claim 29 , wherein the second thread comprises a piezoelectric substance.

31. The cloth according to claim 29 , wherein the first electrical potential is different from the second electrical potential.

32. The cloth according to claim 26 , wherein the plurality of twisted electric potential generating fibers comprise a piezoelectric substance.

33. The cloth according to claim 32 , wherein the piezoelectric substance is a piezoelectric polymer.

34. The cloth according to claim 33 , wherein the piezoelectric polymer comprises polylactic acid.

35. The cloth according to claim 26 , wherein a plurality of the first thread are arranged in parallel with a plurality of the second thread in the cloth.

Assignees

• Murata Manufacturing Co

Inventors

• Ando Masamichi
• Ishino Satoshi

Classifications

• D03D15/50

  characterised by the properties of the yarns or threads · CPC title

• D03D15/283

  synthetic polymer-based, e.g. polyamide or polyester fibres (cellulose-based artificial fibres D03D15/225) · CPC title

• D10B2401/13

  anti-allergenic or anti-bacterial · CPC title

• D02G3/449 Primary

  Yarns or threads with antibacterial properties (filaments containing agents inhibiting growth of microorganisms D01F1/103) · CPC title

• D02G3/441 Primary

  Yarns or threads with antistatic, conductive or radiation-shielding properties (electroconductive, anti-static or radiation-shielding filaments D01F1/09, D01F1/106; anti-static fabrics D03D15/533; conducting, insulating or anti-static layers for floor coverings D06N7/0042) · CPC title