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1. WO2020151824 - DRY NONWOVEN ANTIBACTERIAL ARTICLE

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

Claims

1. Dry antibacterial article comprising at least a dispersible nonwoven layer characterized in that unprotected and dry bacterial spores are spread within the nonwoven layer, said spores being selected to specifically inhibit the growth of pathogenic bacteria upon reactivation.

2. Article according to claim 1, which is flushable.

3. Article according to one of claims 1 and 2, comprising a dispersible handling layer.

4. Article according to one of claims 1 to 3, as a roll.

5. Article according to claim 4, wherein the roll is precut into wipes.

6. Article according to one of claims 1 to 3, as a wipe.

7. Article according to one of claims 1 to 3, as a roll arranged to be cut into wipes .

8. Article according to one of claims 1 to 7, wherein the spores are spores of Bacillus bacteria.

9. Article according to one of claims 1 to 6, wherein the nonwoven layer comprises at least one fibers of the group consisting of polyolefins, polyesters, polylactates, polyvinylacohols, viscose and cellulose.

10. Dry antibacterial article according to claims 3, wherein the handling layer is a paper layer.

11. Dry antibacterial article according to one of claims 1 to 10, wherein bacteria are also dispersed.

12. Use, by a user, of the dry antibacterial article according to one of claims 1 to 11, to clean a hard surface comprising the following steps of:

the user takes the dry antibacterial article in a hand;

the dry antibacterial article is humidified to initiate the reactivation of the spores,

the user wipes the hard surface with the article causing the release of spores onto the hard surface, and

the user throws the article away.

13. Use of the dry antibacterial article according to claim 10, further comprising the step of taking the dry antibacterial wipe out of a dispenser.

14. Dispenser of wipes according to one of claims 5 to 7 comprising:

- a dry compartment comprising at least one wipe,

- a wet compartment, comprising an aqueous liquid,

- means arranged to release an aqueous liquid onto the wipe, and

- a dispensing output,

the dispenser being arranged for humidifying the wipe at the output of the dispenser.

15. Dispenser according to claim 14, wherein the means to release aqueous liquid are arranged between the dry compartment and the dispensing output .

16. Dispenser according to one of claims 14 and 15, comprising means to extract a wipe out of the dispenser.

17. Process to manufacture the dry antibacterial article according to one of claims 1 to 11, comprising the steps of: - carding dispersible fibers in one direction;

- sreading spores onto the carded fibers and

- submitting the carded fibers with spores thereon to a heat - treatment to bond the fibers into a nonwoven material .

18. Process according to claim 17 wherein the spores are spread by spraying onto the carded dispersible fibers a solution of spores and wherein the heat treatment further evaporates the liquid of the solution sprayed.

19. Process according to claim 18 comprising a step of dissolving the spores just before spraying.

20. Process according to one of claims 18 and 19, wherein spraying occurs just before the heat treatment .

21. Process according to claim 17 wherein the spores are spread by scattering the spores in powder form.

22. Process according to one of claim 17 to 21, further comprising a step of needling and/or hydroentangling.

23. Process to manufacture the dry antibacterial article according to one of claims 1 to 11, comprising the steps of:

- carding dispersible fibers in one direction;

- submitting the carded fibers to a heat treatment to bond the fibers into a nonwoven material;

- spreading spores onto the nonwoven material .

24. Process according to claim 13 wherein the spores are spread by spraying onto the nonwoven material a solution of spores and comprising a subsequent step of drying the sprayed nonwoven material .

25. Process according to claim 24 comprising a step of dissolving the spores just before spraying.

26. Process according to claim 23 wherein the spores are spread by scattering the spores in powder form.

27. Process according to one of claim 23 to 26, further comprising a step of needling and/or hydroentangling.