Dye transfer mitigation

Patent metadata

Field	Value
Publication number	US-10632878-B2
Application number	US-201816197478-A
Country	US
Kind code	B2
Filing date	Nov 21, 2018
Priority date	Nov 22, 2017
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

A system and method of active stain prevention for an automotive seat which reduces visible staining on automotive seating surfaces by adding ozone to a ventilation system within the automotive seat.

First claim

What is claimed is:

1. A ventilated seat for an automotive vehicle, said seat comprising:
a seat base operatively coupled with a seat cushion, said seat cushion operatively coupled with a seat back;
an airflow channel within at least one of said seat cushion, seat back, and/or seat base;
a blower fan fluidically coupled with said airflow channel to direct airflow through a portion of said airflow channel and towards an outer seat surface of at least a portion of said seat back and/or seat cushion; and
an ozone generator fluidically coupled with said airflow channel to provide ozone to said airflow channel which mixes with airflow in said airflow channel;
wherein said airflow mixed with ozone exits from said seat through said outer seat surface.

2. The ventilated seat as set forth in claim 1 , wherein at least a portion of said outer seat surface is porous and/or perforated.

3. The ventilated seat as set forth in claim 2 , wherein at least a portion of said airflow mixed with ozone exits from said seat after passing through at least a portion of said seat cushion.

4. The ventilated seat as set forth in claim 3 , wherein said ventilation seat comprising an air duct in said seat fluidically coupled with said airflow channel to deliver airflow to said airflow channel.

5. The ventilated seat as set forth in claim 4 , said seat cushion comprising a base foam layer, a perforated seating surface, and a porous topper pad between said base foam layer and said perforated seating surface;
wherein at least a portion of said airflow channel passes through at least a portion of said base foam layer.

6. The ventilated seat as set forth in claim 5 , wherein said air duct fluidically coupled with said blower fan to direct airflow through said air duct; and
wherein said ozone generator provides ozone to said airflow between said blower fan and said outer seat surface.

7. The ventilated seat as set forth in claim 6 , wherein at least of portion of said outer seat surface comprises one or more of a leather, a vinyl, and/or a fabric material.

8. The ventilated seat as set forth in claim 7 , wherein an amount of ozone passing through said outer seat surface has a concentration equal or less than 0.1 ppm.

9. The ventilated seat as set forth in claim 8 , wherein at least a portion of sulfur-based indigo blue dye on said outer seat surface is rendered colorless by oxidation reduction of sulfur-based indigo blue dye molecules.

10. A ventilation system for an automotive seat having active stain prevention, said ventilation system comprising:
a blower fan fluidically coupled with an air duct;
said air duct fluidically coupled with an airflow channel;
an ozone generator supplying ozone to airflow in one or more of said air duct and/or airflow channel; and
said airflow channel having an airflow channel outlet wherein at least a portion of said airflow leaving said airflow channel outlet passes through an outer seat surface of said automotive seat.

11. The ventilation system as set forth in claim 10 , wherein at least a portion of said outer seat surface is porous and/or perforated.

12. The ventilation system as set forth in claim 11 , said automotive seat comprising a seat base operatively coupled with a seat cushion which is operatively coupled with a seat back;
wherein at least a portion of said airflow mixed with ozone exits from said seat through said seat cushion.

13. The ventilation system as set forth in claim 12 , wherein:
at least a portion of said air duct passes through a portion of said seat base; and
at least a portion of said airflow channel passes through a portion of said seat cushion.

14. The ventilation system as set forth in claim 13 , wherein an amount of ozone passing through said outer seat surface has a concentration equal or less than 0.1 ppm.

15. The ventilation system as set forth in claim 14 , said seat cushion comprising a base foam layer, a perforated seating surface, and a porous topper pad between said base foam layer and said perforated seating surface;
wherein at least a portion of said airflow channel passes through at least a portion of said base foam layer; and
at least a portion of said airflow leaving said airflow channel outlet passes through said perforated seating surface.

16. The ventilation system as set forth in claim 15 , wherein at least a portion of sulfur-based indigo blue dye on said outer seat surface is rendered colorless by oxidation reduction of sulfur-based indigo blue dye molecules.

17. A method of reducing staining of an automotive seat, said method comprising:
providing an automotive seat having a ventilation system which provides airflow towards an outer seat surface;
adding ozone to said ventilation system; and
passing said ozone through at least a portion of said ventilation system; and
providing said ozone to at least a portion of said outer seat surface.

18. The method as set forth in claim 17 , said method comprising:
providing at least a portion of said outer seat surface having a perforated and/or porous surface.

19. The method as set forth in claim 18 , said method comprising:
providing an amount of ozone passing through said outer seat surface having a concentration equal or less than 0.1 ppm.

20. The method as set forth in claim 19 , said method comprising:
rendering at least a portion of sulfur-based indigo blue dye on said outer seat surface colorless by oxidation reduction of sulfur-based indigo blue dye molecules.

Assignees

• Magna Seating Inc

Inventors

• Kozlowski Eric

Classifications

• B60N2/58

  Seat coverings · CPC title

• B60N2/5657 Primary

  blown towards the seat surface · CPC title

• B60N2/5642

  with circulation of air through a layer inside the seat · CPC title