Antibacterial nonwoven member, antibacterial nonwoven fabric, and antibacterial buffer material

1. An antibacterial nonwoven member comprising:

a plurality of piezoelectric bodies arranged so as to generate electric charges when an external force is applied to the plurality of piezoelectric bodies, the electric charges being sufficient to inhibit growth of bacteria,

wherein the plurality of piezoelectric bodies include a first yarn constructed to generate a positive electric charge when the external force is applied and a second yarn constructed to generate a negative electric charge when the external force is applied.

2. The antibacterial nonwoven member according to claim 1 , wherein the plurality of piezoelectric bodies are constructed from a piezoelectric polymer.

3. The antibacterial nonwoven member according to claim 2 , wherein the piezoelectric polymer contains polyactic acid.

4. The antibacterial nonwoven member according to claim 1 , wherein

the first yarn is a right-twisted yarn in which a first piezoelectric film is twisted around a first core yarn to the right, and a first stretching direction of the first piezoelectric film is oriented at a first angle with respect to an axial direction of the first yarn; and

the second yarn is a left-twisted yarn in which a second piezoelectric film is twisted around a second core yarn to the left, and a second stretching direction of the second piezoelectric film is oriented at a second angle with respect to an axial direction of the second yarn.

5. The antibacterial nonwoven member according to claim 4 , wherein the first angle and the second angle are each 45 degrees.

6. An antibacterial nonwoven fabric formed of the antibacterial nonwoven member as defined in claim 1 , and configured as a cloth.

7. An antibacterial buffer material formed of the antibacterial nonwoven member defined in claim 5 .

8. An antibacterial nonwoven member comprising:

a mass containing a piezoelectric body, the piezoelectric body generating an electric charge when an external force is applied to the piezoelectric body, the electric charge being sufficient to inhibit growth of bacteria,

wherein the piezoelectric body includes a first yarn constructed to generate a positive electric charge when the external force is applied and a second yarn constructed to generate a negative electric charge when the external force is applied.

9. The antibacterial nonwoven member according to claim 8 , wherein at least a part of the mass is a cloth containing the first and second yarns.

10. The antibacterial nonwoven member according to claim 8 , wherein

the first yarn is a right-twisted yarn in which a first piezoelectric film is twisted around a first core yarn to the right, and a first stretching direction of the first piezoelectric film is oriented at a first angle with respect to an axial direction of the first yarn; and

the second yarn is a left-twisted yarn in which a second piezoelectric film is twisted around a second core yarn to the left, and a second stretching direction of the second piezoelectric film is oriented at a second angle with respect to an axial direction of the second yarn.

11. The antibacterial nonwoven member according to claim 8 , wherein the first yarn and the second yarn are arranged in parallel.

12. The antibacterial nonwoven member according to claim 8 , wherein the first yarn and the second yarn are arranged in a crossed relation.

13. The antibacterial nonwoven member according to claim 8 , further comprising a third yarn interlaced with the first yarn and the second yarn as a braid.

14. The antibacterial nonwoven member according to claim 8 , wherein the piezoelectric body is a piezoelectric polymer.

15. The antibacterial nonwoven member according to claim 8 , wherein the piezoelectric body is a piezoelectric polymer, and configured into the yarns by twisting the piezoelectric polymer.

16. The antibacterial nonwoven member according to claim 14 , wherein the piezoelectric polymer contains polylactic acid.