My journey of designing a felt lunch bag project is finally close to its goal. I made up my mind to use laminated or oil canvas that is available from the market to make a removable, machine-washable, and waterproof inner bag, instead of trying to make the surface of the felt waterproof.
I visited local canvas shops and also spent hours to search for the waterproof cloth in the Internet. Do you know Finnish design companies, Marimekko and Finlayson? Their textile design is excellent and when I found lovely design online, it was mostly one of their designs. But unfortunately many of their patterns are too big for my inner bag. I collected waterproof canvases on my Pinterest board.
OK. This design is what I chose!
This stylish and timeless pattern is called Coronna designed by Finnish designer Aini Vaari in 1958 for Finlayson. It's PVC coated cotton, and they say that dump wiping cleans stains and in particular the strongly colored foods should be cleaned as quickly as possible, so that the wax surface does not remain traces. Its surface is mat and soft, and I think it's more natural than glossy waterproof cloths. Let's test the ability now.
I dropped soy sauce and ketchup on the cloth and pressed with a glass, then wiped by wet kitchen towel as same way as I did for the previous fabric tests.
It worked as I expected. But look at the last picture, the ketchup's stain appeared after a few days later although I wiped it as quickly as possible!
Why?? …. Oh no, can you allow this? I think you must ☺. No more wandering, no.
And here is the 6th prototype!
There is no snap buttons to hold the inner bag, but simply you can put the inner bag between the pockets and the felt bag. A zipper fastens this bag, and I have ordered special zippers from Japan made of biodegradable material (except for the metal fittings) that is the same nature as wool felt. I am happy to show you the final model of the lunch bag on the next post!