The kitchen-chair reference notes that upholstered seats generally cannot be placed in a washing machine as a complete item. A fabric-safe commercial spot cleaner offers one possible response to localized marks. Product instructions determine the application and contact time.

Spot-Treat Fabric Kitchen Chairs with a Compatible Product

Check the chair's care label and test a hidden section first. Some upholstery-cleaning equipment can help where the material permits it, but water and detergent still need control. Focus on the affected area without saturating the seat's filling.

Fixed upholstery needs a controlled approach rather than the treatment used for washable covers.