If you leave it in the sun, or wash it with harsh detergent, yes, it will fade.
Take them down in the daytime.
Bleach it with 3 cups of Clorox for whites
Upholstery that I shouldn't clean is silk. It not good to wet this upholster y stlye. Over time it will cause the upholstery rip and fade from being cleaned.
no, marquesa lana is one of the most fade-resistant fiber/fabrics available.
It depends on the climate you are in. The best material for making a flag to hang outside in a climate where there is a lot of wind and rain is a polyester 2 ply blend. But if you live in an area where there is a lot of sun, nylon is preferred due to its fade resistant properties.
colorfast is a permanent color or will not getting fade non colorfast is not permanent color and will getting fade
You need to choose a cushion that is made from a high quality, weather resistant fabric/material.
If you want comfort, go with cotton as it is a natural fiber that is softer against the skin. If you want to make sure it doesn't shrink or fade in the wash, polyester is a more durable choice.
Yes, they tend to be much more expensive.
My grandmother soaked the fabric in salt water before washing in detergent. Unfortunately, I don't know how much salt she used in the water.
Denim is a heavy, stiff, fabric which is tough to stitch and fold. The dye colors are not fast and will bleed and fade.
They may shrink a little bit and become stiff, or the color may fade after washing multiple times.